Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
new file mode 100644
index 0000000..74d23cf
--- /dev/null
+++ b/drivers/i2c/chips/Kconfig
@@ -0,0 +1,443 @@
+#
+# I2C Sensor device configuration
+#
+
+menu "Hardware Sensors Chip support"
+ depends on I2C
+
+config I2C_SENSOR
+ tristate
+ default n
+
+config SENSORS_ADM1021
+ tristate "Analog Devices ADM1021 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Analog Devices ADM1021
+ and ADM1023 sensor chips and clones: Maxim MAX1617 and MAX1617A,
+ Genesys Logic GL523SM, National Semiconductor LM84, TI THMC10,
+ and the XEON processor built-in sensor.
+
+ This driver can also be built as a module. If so, the module
+ will be called adm1021.
+
+config SENSORS_ADM1025
+ tristate "Analog Devices ADM1025 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Analog Devices ADM1025
+ and Philips NE1619 sensor chips.
+ This driver can also be built as a module. If so, the module
+ will be called adm1025.
+
+config SENSORS_ADM1026
+ tristate "Analog Devices ADM1026 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Analog Devices ADM1026
+ This driver can also be built as a module. If so, the module
+ will be called adm1026.
+
+config SENSORS_ADM1031
+ tristate "Analog Devices ADM1031 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Analog Devices ADM1031
+ and ADM1030 sensor chips.
+ This driver can also be built as a module. If so, the module
+ will be called adm1031.
+
+config SENSORS_ASB100
+ tristate "Asus ASB100 Bach"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for the ASB100 Bach sensor
+ chip found on some Asus mainboards.
+
+ This driver can also be built as a module. If so, the module
+ will be called asb100.
+
+config SENSORS_DS1621
+ tristate "Dallas Semiconductor DS1621 and DS1625"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Dallas Semiconductor
+ DS1621 and DS1625 sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called ds1621.
+
+config SENSORS_FSCHER
+ tristate "FSC Hermes"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Fujitsu Siemens
+ Computers Hermes sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called fscher.
+
+config SENSORS_FSCPOS
+ tristate "FSC Poseidon"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Fujitsu Siemens
+ Computers Poseidon sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called fscpos.
+
+config SENSORS_GL518SM
+ tristate "Genesys Logic GL518SM"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Genesys Logic GL518SM
+ sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called gl518sm.
+
+config SENSORS_GL520SM
+ tristate "Genesys Logic GL520SM"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Genesys Logic GL520SM
+ sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called gl520sm.
+
+config SENSORS_IT87
+ tristate "ITE IT87xx and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for ITE IT87xx sensor chips
+ and clones: SiS960.
+
+ This driver can also be built as a module. If so, the module
+ will be called it87.
+
+config SENSORS_LM63
+ tristate "National Semiconductor LM63"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for the National Semiconductor
+ LM63 remote diode digital temperature sensor with integrated fan
+ control. Such chips are found on the Tyan S4882 (Thunder K8QS Pro)
+ motherboard, among others.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm63.
+
+config SENSORS_LM75
+ tristate "National Semiconductor LM75 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor LM75
+ sensor chips and clones: Dallas Semiconductor DS75 and DS1775 (in
+ 9-bit precision mode), and TelCom (now Microchip) TCN75.
+
+ The DS75 and DS1775 in 10- to 12-bit precision modes will require
+ a force module parameter. The driver will not handle the extra
+ precision anyhow.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm75.
+
+config SENSORS_LM77
+ tristate "National Semiconductor LM77"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor LM77
+ sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm77.
+
+config SENSORS_LM78
+ tristate "National Semiconductor LM78 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor LM78,
+ LM78-J and LM79. This can also be built as a module which can be
+ inserted and removed while the kernel is running.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm78.
+
+config SENSORS_LM80
+ tristate "National Semiconductor LM80"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor
+ LM80 sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm80.
+
+config SENSORS_LM83
+ tristate "National Semiconductor LM83"
+ depends on I2C
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor
+ LM83 sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm83.
+
+config SENSORS_LM85
+ tristate "National Semiconductor LM85 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor LM85
+ sensor chips and clones: ADT7463 and ADM1027.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm85.
+
+config SENSORS_LM87
+ tristate "National Semiconductor LM87"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor LM87
+ sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm87.
+
+config SENSORS_LM90
+ tristate "National Semiconductor LM90 and compatibles"
+ depends on I2C
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor LM90,
+ LM86, LM89 and LM99, Analog Devices ADM1032 and Maxim MAX6657 and
+ MAX6658 sensor chips.
+
+ The Analog Devices ADT7461 sensor chip is also supported, but only
+ if found in ADM1032 compatibility mode.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm90.
+
+config SENSORS_LM92
+ tristate "National Semiconductor LM92 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for National Semiconductor LM92
+ and Maxim MAX6635 sensor chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm92.
+
+config SENSORS_MAX1619
+ tristate "Maxim MAX1619 sensor chip"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for MAX1619 sensor chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called max1619.
+
+config SENSORS_PC87360
+ tristate "National Semiconductor PC87360 family"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ select I2C_ISA
+ help
+ If you say yes here you get access to the hardware monitoring
+ functions of the National Semiconductor PC8736x Super-I/O chips.
+ The PC87360, PC87363 and PC87364 only have fan monitoring and
+ control. The PC87365 and PC87366 additionally have voltage and
+ temperature monitoring.
+
+ This driver can also be built as a module. If so, the module
+ will be called pc87360.
+
+config SENSORS_SMSC47B397
+ tristate "SMSC LPC47B397-NC"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ select I2C_ISA
+ help
+ If you say yes here you get support for the SMSC LPC47B397-NC
+ sensor chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called smsc47b397.
+
+config SENSORS_SIS5595
+ tristate "Silicon Integrated Systems Corp. SiS5595"
+ depends on I2C && PCI && EXPERIMENTAL
+ select I2C_SENSOR
+ select I2C_ISA
+ help
+ If you say yes here you get support for the integrated sensors in
+ SiS5595 South Bridges.
+
+ This driver can also be built as a module. If so, the module
+ will be called sis5595.
+
+config SENSORS_SMSC47M1
+ tristate "SMSC LPC47M10x and compatibles"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ select I2C_ISA
+ help
+ If you say yes here you get support for the integrated fan
+ monitoring and control capabilities of the SMSC LPC47B27x,
+ LPC47M10x, LPC47M13x and LPC47M14x chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called smsc47m1.
+
+config SENSORS_VIA686A
+ tristate "VIA686A"
+ depends on I2C && PCI && EXPERIMENTAL
+ select I2C_SENSOR
+ select I2C_ISA
+ help
+ If you say yes here you get support for the integrated sensors in
+ Via 686A/B South Bridges.
+
+ This driver can also be built as a module. If so, the module
+ will be called via686a.
+
+config SENSORS_W83781D
+ tristate "Winbond W83781D, W83782D, W83783S, W83627HF, Asus AS99127F"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for the Winbond W8378x series
+ of sensor chips: the W83781D, W83782D, W83783S and W83627HF,
+ and the similar Asus AS99127F.
+
+ This driver can also be built as a module. If so, the module
+ will be called w83781d.
+
+config SENSORS_W83L785TS
+ tristate "Winbond W83L785TS-S"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for the Winbond W83L785TS-S
+ sensor chip, which is used on the Asus A7N8X, among other
+ motherboards.
+
+ This driver can also be built as a module. If so, the module
+ will be called w83l785ts.
+
+config SENSORS_W83627HF
+ tristate "Winbond W83627HF, W83627THF, W83637HF, W83697HF"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ select I2C_ISA
+ help
+ If you say yes here you get support for the Winbond W836X7 series
+ of sensor chips: the W83627HF, W83627THF, W83637HF, and the W83697HF
+
+ This driver can also be built as a module. If so, the module
+ will be called w83627hf.
+
+endmenu
+
+menu "Other I2C Chip support"
+ depends on I2C
+
+config SENSORS_DS1337
+ tristate "Dallas Semiconductor DS1337 Real Time Clock"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Dallas Semiconductor
+ DS1337 real-time clock chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called ds1337.
+
+config SENSORS_EEPROM
+ tristate "EEPROM reader"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get read-only access to the EEPROM data
+ available on modern memory DIMMs and Sony Vaio laptops. Such
+ EEPROMs could theoretically be available on other devices as well.
+
+ This driver can also be built as a module. If so, the module
+ will be called eeprom.
+
+config SENSORS_PCF8574
+ tristate "Philips PCF8574 and PCF8574A"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Philips PCF8574 and
+ PCF8574A chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called pcf8574.
+
+config SENSORS_PCF8591
+ tristate "Philips PCF8591"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for Philips PCF8591 chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called pcf8591.
+
+config SENSORS_RTC8564
+ tristate "Epson 8564 RTC chip"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for the Epson 8564 RTC chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called i2c-rtc8564.
+
+config ISP1301_OMAP
+ tristate "Philips ISP1301 with OMAP OTG"
+ depends on I2C && ARCH_OMAP_OTG
+ help
+ If you say yes here you get support for the Philips ISP1301
+ USB-On-The-Go transceiver working with the OMAP OTG controller.
+ The ISP1301 is used in products including H2 and H3 development
+ boards for Texas Instruments OMAP processors.
+
+ This driver can also be built as a module. If so, the module
+ will be called isp1301_omap.
+
+config SENSORS_M41T00
+ tristate "ST M41T00 RTC chip"
+ depends on I2C && PPC32
+ help
+ If you say yes here you get support for the ST M41T00 RTC chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called m41t00.
+
+endmenu
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
new file mode 100644
index 0000000..6559916
--- /dev/null
+++ b/drivers/i2c/chips/Makefile
@@ -0,0 +1,48 @@
+#
+# Makefile for the kernel hardware sensors chip drivers.
+#
+
+# asb100, then w83781d go first, as they can override other drivers' addresses.
+obj-$(CONFIG_SENSORS_ASB100) += asb100.o
+obj-$(CONFIG_SENSORS_W83627HF) += w83627hf.o
+obj-$(CONFIG_SENSORS_W83781D) += w83781d.o
+
+obj-$(CONFIG_SENSORS_ADM1021) += adm1021.o
+obj-$(CONFIG_SENSORS_ADM1025) += adm1025.o
+obj-$(CONFIG_SENSORS_ADM1026) += adm1026.o
+obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o
+obj-$(CONFIG_SENSORS_DS1337) += ds1337.o
+obj-$(CONFIG_SENSORS_DS1621) += ds1621.o
+obj-$(CONFIG_SENSORS_EEPROM) += eeprom.o
+obj-$(CONFIG_SENSORS_FSCHER) += fscher.o
+obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o
+obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o
+obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o
+obj-$(CONFIG_SENSORS_IT87) += it87.o
+obj-$(CONFIG_SENSORS_LM63) += lm63.o
+obj-$(CONFIG_SENSORS_LM75) += lm75.o
+obj-$(CONFIG_SENSORS_LM77) += lm77.o
+obj-$(CONFIG_SENSORS_LM78) += lm78.o
+obj-$(CONFIG_SENSORS_LM80) += lm80.o
+obj-$(CONFIG_SENSORS_LM83) += lm83.o
+obj-$(CONFIG_SENSORS_LM85) += lm85.o
+obj-$(CONFIG_SENSORS_LM87) += lm87.o
+obj-$(CONFIG_SENSORS_LM90) += lm90.o
+obj-$(CONFIG_SENSORS_LM92) += lm92.o
+obj-$(CONFIG_SENSORS_MAX1619) += max1619.o
+obj-$(CONFIG_SENSORS_M41T00) += m41t00.o
+obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
+obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o
+obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
+obj-$(CONFIG_SENSORS_RTC8564) += rtc8564.o
+obj-$(CONFIG_SENSORS_SIS5595) += sis5595.o
+obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
+obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o
+obj-$(CONFIG_SENSORS_VIA686A) += via686a.o
+obj-$(CONFIG_SENSORS_W83L785TS) += w83l785ts.o
+obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
+
+ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
+
diff --git a/drivers/i2c/chips/adm1021.c b/drivers/i2c/chips/adm1021.c
new file mode 100644
index 0000000..9c59a37
--- /dev/null
+++ b/drivers/i2c/chips/adm1021.c
@@ -0,0 +1,411 @@
+/*
+ adm1021.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
+ Philip Edelbrock <phil@netroedge.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x18, 0x19, 0x1a,
+ 0x29, 0x2a, 0x2b,
+ 0x4c, 0x4d, 0x4e,
+ I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_8(adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm, mc1066);
+
+/* adm1021 constants specified below */
+
+/* The adm1021 registers */
+/* Read-only */
+#define ADM1021_REG_TEMP 0x00
+#define ADM1021_REG_REMOTE_TEMP 0x01
+#define ADM1021_REG_STATUS 0x02
+#define ADM1021_REG_MAN_ID 0x0FE /* 0x41 = AMD, 0x49 = TI, 0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi*/
+#define ADM1021_REG_DEV_ID 0x0FF /* ADM1021 = 0x0X, ADM1023 = 0x3X */
+#define ADM1021_REG_DIE_CODE 0x0FF /* MAX1617A */
+/* These use different addresses for reading/writing */
+#define ADM1021_REG_CONFIG_R 0x03
+#define ADM1021_REG_CONFIG_W 0x09
+#define ADM1021_REG_CONV_RATE_R 0x04
+#define ADM1021_REG_CONV_RATE_W 0x0A
+/* These are for the ADM1023's additional precision on the remote temp sensor */
+#define ADM1021_REG_REM_TEMP_PREC 0x010
+#define ADM1021_REG_REM_OFFSET 0x011
+#define ADM1021_REG_REM_OFFSET_PREC 0x012
+#define ADM1021_REG_REM_TOS_PREC 0x013
+#define ADM1021_REG_REM_THYST_PREC 0x014
+/* limits */
+#define ADM1021_REG_TOS_R 0x05
+#define ADM1021_REG_TOS_W 0x0B
+#define ADM1021_REG_REMOTE_TOS_R 0x07
+#define ADM1021_REG_REMOTE_TOS_W 0x0D
+#define ADM1021_REG_THYST_R 0x06
+#define ADM1021_REG_THYST_W 0x0C
+#define ADM1021_REG_REMOTE_THYST_R 0x08
+#define ADM1021_REG_REMOTE_THYST_W 0x0E
+/* write-only */
+#define ADM1021_REG_ONESHOT 0x0F
+
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ variants. Note that you should be a bit careful with which arguments
+ these macros are called: arguments may be evaluated more than once.
+ Fixing this is just not worth it. */
+/* Conversions note: 1021 uses normal integer signed-byte format*/
+#define TEMP_FROM_REG(val) (val > 127 ? (val-256)*1000 : val*1000)
+#define TEMP_TO_REG(val) (SENSORS_LIMIT((val < 0 ? (val/1000)+256 : val/1000),0,255))
+
+/* Initial values */
+
+/* Note: Even though I left the low and high limits named os and hyst,
+they don't quite work like a thermostat the way the LM75 does. I.e.,
+a lower temp than THYST actually triggers an alarm instead of
+clearing it. Weird, ey? --Phil */
+
+/* Each client has this additional data */
+struct adm1021_data {
+ struct i2c_client client;
+ enum chips type;
+
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u8 temp_max; /* Register values */
+ u8 temp_hyst;
+ u8 temp_input;
+ u8 remote_temp_max;
+ u8 remote_temp_hyst;
+ u8 remote_temp_input;
+ u8 alarms;
+ /* special values for ADM1021 only */
+ u8 die_code;
+ /* Special values for ADM1023 only */
+ u8 remote_temp_prec;
+ u8 remote_temp_os_prec;
+ u8 remote_temp_hyst_prec;
+ u8 remote_temp_offset;
+ u8 remote_temp_offset_prec;
+};
+
+static int adm1021_attach_adapter(struct i2c_adapter *adapter);
+static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind);
+static void adm1021_init_client(struct i2c_client *client);
+static int adm1021_detach_client(struct i2c_client *client);
+static int adm1021_read_value(struct i2c_client *client, u8 reg);
+static int adm1021_write_value(struct i2c_client *client, u8 reg,
+ u16 value);
+static struct adm1021_data *adm1021_update_device(struct device *dev);
+
+/* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
+static int read_only = 0;
+
+
+/* This is the driver that will be inserted */
+static struct i2c_driver adm1021_driver = {
+ .owner = THIS_MODULE,
+ .name = "adm1021",
+ .id = I2C_DRIVERID_ADM1021,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = adm1021_attach_adapter,
+ .detach_client = adm1021_detach_client,
+};
+
+#define show(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct adm1021_data *data = adm1021_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \
+}
+show(temp_max);
+show(temp_hyst);
+show(temp_input);
+show(remote_temp_max);
+show(remote_temp_hyst);
+show(remote_temp_input);
+
+#define show2(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct adm1021_data *data = adm1021_update_device(dev); \
+ return sprintf(buf, "%d\n", data->value); \
+}
+show2(alarms);
+show2(die_code);
+
+#define set(value, reg) \
+static ssize_t set_##value(struct device *dev, const char *buf, size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct adm1021_data *data = i2c_get_clientdata(client); \
+ int temp = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = TEMP_TO_REG(temp); \
+ adm1021_write_value(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+set(temp_max, ADM1021_REG_TOS_W);
+set(temp_hyst, ADM1021_REG_THYST_W);
+set(remote_temp_max, ADM1021_REG_REMOTE_TOS_W);
+set(remote_temp_hyst, ADM1021_REG_REMOTE_THYST_W);
+
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, set_temp_max);
+static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_hyst, set_temp_hyst);
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL);
+static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_remote_temp_max, set_remote_temp_max);
+static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_remote_temp_hyst, set_remote_temp_hyst);
+static DEVICE_ATTR(temp2_input, S_IRUGO, show_remote_temp_input, NULL);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR(die_code, S_IRUGO, show_die_code, NULL);
+
+
+static int adm1021_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, adm1021_detect);
+}
+
+static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i;
+ struct i2c_client *new_client;
+ struct adm1021_data *data;
+ int err = 0;
+ const char *type_name = "";
+
+ /* Make sure we aren't probing the ISA bus!! This is just a safety check
+ at this moment; i2c_detect really won't call us. */
+#ifdef DEBUG
+ if (i2c_is_isa_adapter(adapter)) {
+ dev_dbg(&adapter->dev, "adm1021_detect called for an ISA bus adapter?!?\n");
+ return 0;
+ }
+#endif
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto error0;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access adm1021_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto error0;
+ }
+ memset(data, 0, sizeof(struct adm1021_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &adm1021_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+ if (kind < 0) {
+ if ((adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0x03) != 0x00
+ || (adm1021_read_value(new_client, ADM1021_REG_CONFIG_R) & 0x3F) != 0x00
+ || (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) & 0xF8) != 0x00) {
+ err = -ENODEV;
+ goto error1;
+ }
+ }
+
+ /* Determine the chip type. */
+ if (kind <= 0) {
+ i = adm1021_read_value(new_client, ADM1021_REG_MAN_ID);
+ if (i == 0x41)
+ if ((adm1021_read_value(new_client, ADM1021_REG_DEV_ID) & 0x0F0) == 0x030)
+ kind = adm1023;
+ else
+ kind = adm1021;
+ else if (i == 0x49)
+ kind = thmc10;
+ else if (i == 0x23)
+ kind = gl523sm;
+ else if ((i == 0x4d) &&
+ (adm1021_read_value(new_client, ADM1021_REG_DEV_ID) == 0x01))
+ kind = max1617a;
+ else if (i == 0x54)
+ kind = mc1066;
+ /* LM84 Mfr ID in a different place, and it has more unused bits */
+ else if (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) == 0x00
+ && (kind == 0 /* skip extra detection */
+ || ((adm1021_read_value(new_client, ADM1021_REG_CONFIG_R) & 0x7F) == 0x00
+ && (adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0xAB) == 0x00)))
+ kind = lm84;
+ else
+ kind = max1617;
+ }
+
+ if (kind == max1617) {
+ type_name = "max1617";
+ } else if (kind == max1617a) {
+ type_name = "max1617a";
+ } else if (kind == adm1021) {
+ type_name = "adm1021";
+ } else if (kind == adm1023) {
+ type_name = "adm1023";
+ } else if (kind == thmc10) {
+ type_name = "thmc10";
+ } else if (kind == lm84) {
+ type_name = "lm84";
+ } else if (kind == gl523sm) {
+ type_name = "gl523sm";
+ } else if (kind == mc1066) {
+ type_name = "mc1066";
+ }
+
+ /* Fill in the remaining client fields and put it into the global list */
+ strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
+ data->type = kind;
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto error1;
+
+ /* Initialize the ADM1021 chip */
+ if (kind != lm84)
+ adm1021_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ if (data->type == adm1021)
+ device_create_file(&new_client->dev, &dev_attr_die_code);
+
+ return 0;
+
+error1:
+ kfree(data);
+error0:
+ return err;
+}
+
+static void adm1021_init_client(struct i2c_client *client)
+{
+ /* Enable ADC and disable suspend mode */
+ adm1021_write_value(client, ADM1021_REG_CONFIG_W,
+ adm1021_read_value(client, ADM1021_REG_CONFIG_R) & 0xBF);
+ /* Set Conversion rate to 1/sec (this can be tinkered with) */
+ adm1021_write_value(client, ADM1021_REG_CONV_RATE_W, 0x04);
+}
+
+static int adm1021_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+/* All registers are byte-sized */
+static int adm1021_read_value(struct i2c_client *client, u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int adm1021_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+ if (!read_only)
+ return i2c_smbus_write_byte_data(client, reg, value);
+ return 0;
+}
+
+static struct adm1021_data *adm1021_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1021_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ dev_dbg(&client->dev, "Starting adm1021 update\n");
+
+ data->temp_input = adm1021_read_value(client, ADM1021_REG_TEMP);
+ data->temp_max = adm1021_read_value(client, ADM1021_REG_TOS_R);
+ data->temp_hyst = adm1021_read_value(client, ADM1021_REG_THYST_R);
+ data->remote_temp_input = adm1021_read_value(client, ADM1021_REG_REMOTE_TEMP);
+ data->remote_temp_max = adm1021_read_value(client, ADM1021_REG_REMOTE_TOS_R);
+ data->remote_temp_hyst = adm1021_read_value(client, ADM1021_REG_REMOTE_THYST_R);
+ data->alarms = adm1021_read_value(client, ADM1021_REG_STATUS) & 0x7c;
+ if (data->type == adm1021)
+ data->die_code = adm1021_read_value(client, ADM1021_REG_DIE_CODE);
+ if (data->type == adm1023) {
+ data->remote_temp_prec = adm1021_read_value(client, ADM1021_REG_REM_TEMP_PREC);
+ data->remote_temp_os_prec = adm1021_read_value(client, ADM1021_REG_REM_TOS_PREC);
+ data->remote_temp_hyst_prec = adm1021_read_value(client, ADM1021_REG_REM_THYST_PREC);
+ data->remote_temp_offset = adm1021_read_value(client, ADM1021_REG_REM_OFFSET);
+ data->remote_temp_offset_prec = adm1021_read_value(client, ADM1021_REG_REM_OFFSET_PREC);
+ }
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_adm1021_init(void)
+{
+ return i2c_add_driver(&adm1021_driver);
+}
+
+static void __exit sensors_adm1021_exit(void)
+{
+ i2c_del_driver(&adm1021_driver);
+}
+
+MODULE_AUTHOR ("Frodo Looijaard <frodol@dds.nl> and "
+ "Philip Edelbrock <phil@netroedge.com>");
+MODULE_DESCRIPTION("adm1021 driver");
+MODULE_LICENSE("GPL");
+
+module_param(read_only, bool, 0);
+MODULE_PARM_DESC(read_only, "Don't set any values, read only mode");
+
+module_init(sensors_adm1021_init)
+module_exit(sensors_adm1021_exit)
diff --git a/drivers/i2c/chips/adm1025.c b/drivers/i2c/chips/adm1025.c
new file mode 100644
index 0000000..e0771a3
--- /dev/null
+++ b/drivers/i2c/chips/adm1025.c
@@ -0,0 +1,574 @@
+/*
+ * adm1025.c
+ *
+ * Copyright (C) 2000 Chen-Yuan Wu <gwu@esoft.com>
+ * Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
+ *
+ * The ADM1025 is a sensor chip made by Analog Devices. It reports up to 6
+ * voltages (including its own power source) and up to two temperatures
+ * (its own plus up to one external one). Voltages are scaled internally
+ * (which is not the common way) with ratios such that the nominal value
+ * of each voltage correspond to a register value of 192 (which means a
+ * resolution of about 0.5% of the nominal value). Temperature values are
+ * reported with a 1 deg resolution and a 3 deg accuracy. Complete
+ * datasheet can be obtained from Analog's website at:
+ * http://www.analog.com/Analog_Root/productPage/productHome/0,2121,ADM1025,00.html
+ *
+ * This driver also supports the ADM1025A, which differs from the ADM1025
+ * only in that it has "open-drain VID inputs while the ADM1025 has
+ * on-chip 100k pull-ups on the VID inputs". It doesn't make any
+ * difference for us.
+ *
+ * This driver also supports the NE1619, a sensor chip made by Philips.
+ * That chip is similar to the ADM1025A, with a few differences. The only
+ * difference that matters to us is that the NE1619 has only two possible
+ * addresses while the ADM1025A has a third one. Complete datasheet can be
+ * obtained from Philips's website at:
+ * http://www.semiconductors.philips.com/pip/NE1619DS.html
+ *
+ * Since the ADM1025 was the first chipset supported by this driver, most
+ * comments will refer to this chipset, but are actually general and
+ * concern all supported chipsets, unless mentioned otherwise.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+
+/*
+ * Addresses to scan
+ * ADM1025 and ADM1025A have three possible addresses: 0x2c, 0x2d and 0x2e.
+ * NE1619 has two possible addresses: 0x2c and 0x2d.
+ */
+
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_2(adm1025, ne1619);
+
+/*
+ * The ADM1025 registers
+ */
+
+#define ADM1025_REG_MAN_ID 0x3E
+#define ADM1025_REG_CHIP_ID 0x3F
+#define ADM1025_REG_CONFIG 0x40
+#define ADM1025_REG_STATUS1 0x41
+#define ADM1025_REG_STATUS2 0x42
+#define ADM1025_REG_IN(nr) (0x20 + (nr))
+#define ADM1025_REG_IN_MAX(nr) (0x2B + (nr) * 2)
+#define ADM1025_REG_IN_MIN(nr) (0x2C + (nr) * 2)
+#define ADM1025_REG_TEMP(nr) (0x26 + (nr))
+#define ADM1025_REG_TEMP_HIGH(nr) (0x37 + (nr) * 2)
+#define ADM1025_REG_TEMP_LOW(nr) (0x38 + (nr) * 2)
+#define ADM1025_REG_VID 0x47
+#define ADM1025_REG_VID4 0x49
+
+/*
+ * Conversions and various macros
+ * The ADM1025 uses signed 8-bit values for temperatures.
+ */
+
+static int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
+
+#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192)
+#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \
+ (val) * 192 >= (scale) * 255 ? 255 : \
+ ((val) * 192 + (scale)/2) / (scale))
+
+#define TEMP_FROM_REG(reg) ((reg) * 1000)
+#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \
+ (val) >= 126500 ? 127 : \
+ (((val) < 0 ? (val)-500 : (val)+500) / 1000))
+
+/*
+ * Functions declaration
+ */
+
+static int adm1025_attach_adapter(struct i2c_adapter *adapter);
+static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind);
+static void adm1025_init_client(struct i2c_client *client);
+static int adm1025_detach_client(struct i2c_client *client);
+static struct adm1025_data *adm1025_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver adm1025_driver = {
+ .owner = THIS_MODULE,
+ .name = "adm1025",
+ .id = I2C_DRIVERID_ADM1025,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = adm1025_attach_adapter,
+ .detach_client = adm1025_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct adm1025_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ u8 in[6]; /* register value */
+ u8 in_max[6]; /* register value */
+ u8 in_min[6]; /* register value */
+ s8 temp[2]; /* register value */
+ s8 temp_min[2]; /* register value */
+ s8 temp_max[2]; /* register value */
+ u16 alarms; /* register values, combined */
+ u8 vid; /* register values, combined */
+ u8 vrm;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show_in(offset) \
+static ssize_t show_in##offset(struct device *dev, char *buf) \
+{ \
+ struct adm1025_data *data = adm1025_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
+ in_scale[offset])); \
+} \
+static ssize_t show_in##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct adm1025_data *data = adm1025_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
+ in_scale[offset])); \
+} \
+static ssize_t show_in##offset##_max(struct device *dev, char *buf) \
+{ \
+ struct adm1025_data *data = adm1025_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
+ in_scale[offset])); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL);
+show_in(0);
+show_in(1);
+show_in(2);
+show_in(3);
+show_in(4);
+show_in(5);
+
+#define show_temp(offset) \
+static ssize_t show_temp##offset(struct device *dev, char *buf) \
+{ \
+ struct adm1025_data *data = adm1025_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
+} \
+static ssize_t show_temp##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct adm1025_data *data = adm1025_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
+} \
+static ssize_t show_temp##offset##_max(struct device *dev, char *buf) \
+{ \
+ struct adm1025_data *data = adm1025_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
+}\
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp##offset, NULL);
+show_temp(1);
+show_temp(2);
+
+#define set_in(offset) \
+static ssize_t set_in##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct adm1025_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_min[offset] = IN_TO_REG(val, in_scale[offset]); \
+ i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MIN(offset), \
+ data->in_min[offset]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static ssize_t set_in##offset##_max(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct adm1025_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_max[offset] = IN_TO_REG(val, in_scale[offset]); \
+ i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(offset), \
+ data->in_max[offset]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
+ show_in##offset##_max, set_in##offset##_max);
+set_in(0);
+set_in(1);
+set_in(2);
+set_in(3);
+set_in(4);
+set_in(5);
+
+#define set_temp(offset) \
+static ssize_t set_temp##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct adm1025_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->temp_min[offset-1] = TEMP_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_LOW(offset-1), \
+ data->temp_min[offset-1]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static ssize_t set_temp##offset##_max(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct adm1025_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->temp_max[offset-1] = TEMP_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(offset-1), \
+ data->temp_max[offset-1]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_min, set_temp##offset##_min); \
+static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_max, set_temp##offset##_max);
+set_temp(1);
+set_temp(2);
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%u\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_vid(struct device *dev, char *buf)
+{
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(in1_ref, S_IRUGO, show_vid, NULL);
+
+static ssize_t show_vrm(struct device *dev, char *buf)
+{
+ struct adm1025_data *data = adm1025_update_device(dev);
+ return sprintf(buf, "%u\n", data->vrm);
+}
+static ssize_t set_vrm(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1025_data *data = i2c_get_clientdata(client);
+ data->vrm = simple_strtoul(buf, NULL, 10);
+ return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+/*
+ * Real code
+ */
+
+static int adm1025_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, adm1025_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct adm1025_data *data;
+ int err = 0;
+ const char *name = "";
+ u8 config;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct adm1025_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct adm1025_data));
+
+ /* The common I2C client data is placed right before the
+ ADM1025-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &adm1025_driver;
+ new_client->flags = 0;
+
+ /*
+ * Now we do the remaining detection. A negative kind means that
+ * the driver was loaded with no force parameter (default), so we
+ * must both detect and identify the chip. A zero kind means that
+ * the driver was loaded with the force parameter, the detection
+ * step shall be skipped. A positive kind means that the driver
+ * was loaded with the force parameter and a given kind of chip is
+ * requested, so both the detection and the identification steps
+ * are skipped.
+ */
+ config = i2c_smbus_read_byte_data(new_client, ADM1025_REG_CONFIG);
+ if (kind < 0) { /* detection */
+ if ((config & 0x80) != 0x00
+ || (i2c_smbus_read_byte_data(new_client,
+ ADM1025_REG_STATUS1) & 0xC0) != 0x00
+ || (i2c_smbus_read_byte_data(new_client,
+ ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
+ dev_dbg(&adapter->dev,
+ "ADM1025 detection failed at 0x%02x.\n",
+ address);
+ goto exit_free;
+ }
+ }
+
+ if (kind <= 0) { /* identification */
+ u8 man_id, chip_id;
+
+ man_id = i2c_smbus_read_byte_data(new_client,
+ ADM1025_REG_MAN_ID);
+ chip_id = i2c_smbus_read_byte_data(new_client,
+ ADM1025_REG_CHIP_ID);
+
+ if (man_id == 0x41) { /* Analog Devices */
+ if ((chip_id & 0xF0) == 0x20) { /* ADM1025/ADM1025A */
+ kind = adm1025;
+ }
+ } else
+ if (man_id == 0xA1) { /* Philips */
+ if (address != 0x2E
+ && (chip_id & 0xF0) == 0x20) { /* NE1619 */
+ kind = ne1619;
+ }
+ }
+
+ if (kind <= 0) { /* identification failed */
+ dev_info(&adapter->dev,
+ "Unsupported chip (man_id=0x%02X, "
+ "chip_id=0x%02X).\n", man_id, chip_id);
+ goto exit_free;
+ }
+ }
+
+ if (kind == adm1025) {
+ name = "adm1025";
+ } else if (kind == ne1619) {
+ name = "ne1619";
+ }
+
+ /* We can fill in the remaining client fields */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the ADM1025 chip */
+ adm1025_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in5_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in5_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in5_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ device_create_file(&new_client->dev, &dev_attr_in1_ref);
+ device_create_file(&new_client->dev, &dev_attr_vrm);
+
+ /* Pin 11 is either in4 (+12V) or VID4 */
+ if (!(config & 0x20)) {
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ }
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static void adm1025_init_client(struct i2c_client *client)
+{
+ u8 reg;
+ struct adm1025_data *data = i2c_get_clientdata(client);
+ int i;
+
+ data->vrm = i2c_which_vrm();
+
+ /*
+ * Set high limits
+ * Usually we avoid setting limits on driver init, but it happens
+ * that the ADM1025 comes with stupid default limits (all registers
+ * set to 0). In case the chip has not gone through any limit
+ * setting yet, we better set the high limits to the max so that
+ * no alarm triggers.
+ */
+ for (i=0; i<6; i++) {
+ reg = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_IN_MAX(i));
+ if (reg == 0)
+ i2c_smbus_write_byte_data(client,
+ ADM1025_REG_IN_MAX(i),
+ 0xFF);
+ }
+ for (i=0; i<2; i++) {
+ reg = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_TEMP_HIGH(i));
+ if (reg == 0)
+ i2c_smbus_write_byte_data(client,
+ ADM1025_REG_TEMP_HIGH(i),
+ 0x7F);
+ }
+
+ /*
+ * Start the conversions
+ */
+ reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
+ if (!(reg & 0x01))
+ i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG,
+ (reg&0x7E)|0x01);
+}
+
+static int adm1025_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static struct adm1025_data *adm1025_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1025_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+ int i;
+
+ dev_dbg(&client->dev, "Updating data.\n");
+ for (i=0; i<6; i++) {
+ data->in[i] = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_IN(i));
+ data->in_min[i] = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_IN_MIN(i));
+ data->in_max[i] = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_IN_MAX(i));
+ }
+ for (i=0; i<2; i++) {
+ data->temp[i] = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_TEMP(i));
+ data->temp_min[i] = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_TEMP_LOW(i));
+ data->temp_max[i] = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_TEMP_HIGH(i));
+ }
+ data->alarms = i2c_smbus_read_byte_data(client,
+ ADM1025_REG_STATUS1)
+ | (i2c_smbus_read_byte_data(client,
+ ADM1025_REG_STATUS2) << 8);
+ data->vid = (i2c_smbus_read_byte_data(client,
+ ADM1025_REG_VID) & 0x0f)
+ | ((i2c_smbus_read_byte_data(client,
+ ADM1025_REG_VID4) & 0x01) << 4);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_adm1025_init(void)
+{
+ return i2c_add_driver(&adm1025_driver);
+}
+
+static void __exit sensors_adm1025_exit(void)
+{
+ i2c_del_driver(&adm1025_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("ADM1025 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_adm1025_init);
+module_exit(sensors_adm1025_exit);
diff --git a/drivers/i2c/chips/adm1026.c b/drivers/i2c/chips/adm1026.c
new file mode 100644
index 0000000..39e2f4a
--- /dev/null
+++ b/drivers/i2c/chips/adm1026.c
@@ -0,0 +1,1754 @@
+/*
+ adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
+ Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
+
+ Chip details at:
+
+ <http://www.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(adm1026);
+
+static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
+module_param_array(gpio_input,int,NULL,0);
+MODULE_PARM_DESC(gpio_input,"List of GPIO pins (0-16) to program as inputs");
+module_param_array(gpio_output,int,NULL,0);
+MODULE_PARM_DESC(gpio_output,"List of GPIO pins (0-16) to program as "
+ "outputs");
+module_param_array(gpio_inverted,int,NULL,0);
+MODULE_PARM_DESC(gpio_inverted,"List of GPIO pins (0-16) to program as "
+ "inverted");
+module_param_array(gpio_normal,int,NULL,0);
+MODULE_PARM_DESC(gpio_normal,"List of GPIO pins (0-16) to program as "
+ "normal/non-inverted");
+module_param_array(gpio_fan,int,NULL,0);
+MODULE_PARM_DESC(gpio_fan,"List of GPIO pins (0-7) to program as fan tachs");
+
+/* Many ADM1026 constants specified below */
+
+/* The ADM1026 registers */
+#define ADM1026_REG_CONFIG1 0x00
+#define CFG1_MONITOR 0x01
+#define CFG1_INT_ENABLE 0x02
+#define CFG1_INT_CLEAR 0x04
+#define CFG1_AIN8_9 0x08
+#define CFG1_THERM_HOT 0x10
+#define CFG1_DAC_AFC 0x20
+#define CFG1_PWM_AFC 0x40
+#define CFG1_RESET 0x80
+#define ADM1026_REG_CONFIG2 0x01
+/* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
+#define ADM1026_REG_CONFIG3 0x07
+#define CFG3_GPIO16_ENABLE 0x01
+#define CFG3_CI_CLEAR 0x02
+#define CFG3_VREF_250 0x04
+#define CFG3_GPIO16_DIR 0x40
+#define CFG3_GPIO16_POL 0x80
+#define ADM1026_REG_E2CONFIG 0x13
+#define E2CFG_READ 0x01
+#define E2CFG_WRITE 0x02
+#define E2CFG_ERASE 0x04
+#define E2CFG_ROM 0x08
+#define E2CFG_CLK_EXT 0x80
+
+/* There are 10 general analog inputs and 7 dedicated inputs
+ * They are:
+ * 0 - 9 = AIN0 - AIN9
+ * 10 = Vbat
+ * 11 = 3.3V Standby
+ * 12 = 3.3V Main
+ * 13 = +5V
+ * 14 = Vccp (CPU core voltage)
+ * 15 = +12V
+ * 16 = -12V
+ */
+static u16 ADM1026_REG_IN[] = {
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
+ 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
+ 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
+ };
+static u16 ADM1026_REG_IN_MIN[] = {
+ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
+ 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
+ 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
+ };
+static u16 ADM1026_REG_IN_MAX[] = {
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
+ 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
+ 0x43, 0x44, 0x45, 0x46, 0x47
+ };
+
+/* Temperatures are:
+ * 0 - Internal
+ * 1 - External 1
+ * 2 - External 2
+ */
+static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
+static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
+static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
+static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
+static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
+static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
+
+#define ADM1026_REG_FAN(nr) (0x38 + (nr))
+#define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
+#define ADM1026_REG_FAN_DIV_0_3 0x02
+#define ADM1026_REG_FAN_DIV_4_7 0x03
+
+#define ADM1026_REG_DAC 0x04
+#define ADM1026_REG_PWM 0x05
+
+#define ADM1026_REG_GPIO_CFG_0_3 0x08
+#define ADM1026_REG_GPIO_CFG_4_7 0x09
+#define ADM1026_REG_GPIO_CFG_8_11 0x0a
+#define ADM1026_REG_GPIO_CFG_12_15 0x0b
+/* CFG_16 in REG_CFG3 */
+#define ADM1026_REG_GPIO_STATUS_0_7 0x24
+#define ADM1026_REG_GPIO_STATUS_8_15 0x25
+/* STATUS_16 in REG_STATUS4 */
+#define ADM1026_REG_GPIO_MASK_0_7 0x1c
+#define ADM1026_REG_GPIO_MASK_8_15 0x1d
+/* MASK_16 in REG_MASK4 */
+
+#define ADM1026_REG_COMPANY 0x16
+#define ADM1026_REG_VERSTEP 0x17
+/* These are the recognized values for the above regs */
+#define ADM1026_COMPANY_ANALOG_DEV 0x41
+#define ADM1026_VERSTEP_GENERIC 0x40
+#define ADM1026_VERSTEP_ADM1026 0x44
+
+#define ADM1026_REG_MASK1 0x18
+#define ADM1026_REG_MASK2 0x19
+#define ADM1026_REG_MASK3 0x1a
+#define ADM1026_REG_MASK4 0x1b
+
+#define ADM1026_REG_STATUS1 0x20
+#define ADM1026_REG_STATUS2 0x21
+#define ADM1026_REG_STATUS3 0x22
+#define ADM1026_REG_STATUS4 0x23
+
+#define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
+#define ADM1026_FAN_CONTROL_TEMP_RANGE 20
+#define ADM1026_PWM_MAX 255
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ */
+
+/* IN are scaled acording to built-in resistors. These are the
+ * voltages corresponding to 3/4 of full scale (192 or 0xc0)
+ * NOTE: The -12V input needs an additional factor to account
+ * for the Vref pullup resistor.
+ * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
+ * = 13875 * 2.50 / 1.875 - 2500
+ * = 16000
+ *
+ * The values in this table are based on Table II, page 15 of the
+ * datasheet.
+ */
+static int adm1026_scaling[] = { /* .001 Volts */
+ 2250, 2250, 2250, 2250, 2250, 2250,
+ 1875, 1875, 1875, 1875, 3000, 3330,
+ 3330, 4995, 2250, 12000, 13875
+ };
+#define NEG12_OFFSET 16000
+#define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from))
+#define INS_TO_REG(n,val) (SENSORS_LIMIT(SCALE(val,adm1026_scaling[n],192),\
+ 0,255))
+#define INS_FROM_REG(n,val) (SCALE(val,192,adm1026_scaling[n]))
+
+/* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
+ * and we assume a 2 pulse-per-rev fan tach signal
+ * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
+ */
+#define FAN_TO_REG(val,div) ((val)<=0 ? 0xff : SENSORS_LIMIT(1350000/((val)*\
+ (div)),1,254))
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==0xff ? 0 : 1350000/((val)*\
+ (div)))
+#define DIV_FROM_REG(val) (1<<(val))
+#define DIV_TO_REG(val) ((val)>=8 ? 3 : (val)>=4 ? 2 : (val)>=2 ? 1 : 0)
+
+/* Temperature is reported in 1 degC increments */
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
+ -127,127))
+#define TEMP_FROM_REG(val) ((val) * 1000)
+#define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
+ -127,127))
+#define OFFSET_FROM_REG(val) ((val) * 1000)
+
+#define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255))
+#define PWM_FROM_REG(val) (val)
+
+#define PWM_MIN_TO_REG(val) ((val) & 0xf0)
+#define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
+
+/* Analog output is a voltage, and scaled to millivolts. The datasheet
+ * indicates that the DAC could be used to drive the fans, but in our
+ * example board (Arima HDAMA) it isn't connected to the fans at all.
+ */
+#define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500),0,255))
+#define DAC_FROM_REG(val) (((val)*2500)/255)
+
+/* Typically used with systems using a v9.1 VRM spec ? */
+#define ADM1026_INIT_VRM 91
+
+/* Chip sampling rates
+ *
+ * Some sensors are not updated more frequently than once per second
+ * so it doesn't make sense to read them more often than that.
+ * We cache the results and return the saved data if the driver
+ * is called again before a second has elapsed.
+ *
+ * Also, there is significant configuration data for this chip
+ * So, we keep the config data up to date in the cache
+ * when it is written and only sample it once every 5 *minutes*
+ */
+#define ADM1026_DATA_INTERVAL (1 * HZ)
+#define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
+
+/* We allow for multiple chips in a single system.
+ *
+ * For each registered ADM1026, we need to keep state information
+ * at client->data. The adm1026_data structure is dynamically
+ * allocated, when a new client structure is allocated. */
+
+struct pwm_data {
+ u8 pwm;
+ u8 enable;
+ u8 auto_pwm_min;
+};
+
+struct adm1026_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ enum chips type;
+
+ struct semaphore update_lock;
+ int valid; /* !=0 if following fields are valid */
+ unsigned long last_reading; /* In jiffies */
+ unsigned long last_config; /* In jiffies */
+
+ u8 in[17]; /* Register value */
+ u8 in_max[17]; /* Register value */
+ u8 in_min[17]; /* Register value */
+ s8 temp[3]; /* Register value */
+ s8 temp_min[3]; /* Register value */
+ s8 temp_max[3]; /* Register value */
+ s8 temp_tmin[3]; /* Register value */
+ s8 temp_crit[3]; /* Register value */
+ s8 temp_offset[3]; /* Register value */
+ u8 fan[8]; /* Register value */
+ u8 fan_min[8]; /* Register value */
+ u8 fan_div[8]; /* Decoded value */
+ struct pwm_data pwm1; /* Pwm control values */
+ int vid; /* Decoded value */
+ u8 vrm; /* VRM version */
+ u8 analog_out; /* Register value (DAC) */
+ long alarms; /* Register encoding, combined */
+ long alarm_mask; /* Register encoding, combined */
+ long gpio; /* Register encoding, combined */
+ long gpio_mask; /* Register encoding, combined */
+ u8 gpio_config[17]; /* Decoded value */
+ u8 config1; /* Register value */
+ u8 config2; /* Register value */
+ u8 config3; /* Register value */
+};
+
+static int adm1026_attach_adapter(struct i2c_adapter *adapter);
+static int adm1026_detect(struct i2c_adapter *adapter, int address,
+ int kind);
+static int adm1026_detach_client(struct i2c_client *client);
+static int adm1026_read_value(struct i2c_client *client, u8 register);
+static int adm1026_write_value(struct i2c_client *client, u8 register,
+ int value);
+static void adm1026_print_gpio(struct i2c_client *client);
+static void adm1026_fixup_gpio(struct i2c_client *client);
+static struct adm1026_data *adm1026_update_device(struct device *dev);
+static void adm1026_init_client(struct i2c_client *client);
+
+
+static struct i2c_driver adm1026_driver = {
+ .owner = THIS_MODULE,
+ .name = "adm1026",
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = adm1026_attach_adapter,
+ .detach_client = adm1026_detach_client,
+};
+
+int adm1026_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON)) {
+ return 0;
+ }
+ return i2c_detect(adapter, &addr_data, adm1026_detect);
+}
+
+int adm1026_detach_client(struct i2c_client *client)
+{
+ i2c_detach_client(client);
+ kfree(client);
+ return 0;
+}
+
+int adm1026_read_value(struct i2c_client *client, u8 reg)
+{
+ int res;
+
+ if (reg < 0x80) {
+ /* "RAM" locations */
+ res = i2c_smbus_read_byte_data(client, reg) & 0xff;
+ } else {
+ /* EEPROM, do nothing */
+ res = 0;
+ }
+ return res;
+}
+
+int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
+{
+ int res;
+
+ if (reg < 0x80) {
+ /* "RAM" locations */
+ res = i2c_smbus_write_byte_data(client, reg, value);
+ } else {
+ /* EEPROM, do nothing */
+ res = 0;
+ }
+ return res;
+}
+
+void adm1026_init_client(struct i2c_client *client)
+{
+ int value, i;
+ struct adm1026_data *data = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "Initializing device\n");
+ /* Read chip config */
+ data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+ data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
+ data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
+
+ /* Inform user of chip config */
+ dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
+ data->config1);
+ if ((data->config1 & CFG1_MONITOR) == 0) {
+ dev_dbg(&client->dev, "Monitoring not currently "
+ "enabled.\n");
+ }
+ if (data->config1 & CFG1_INT_ENABLE) {
+ dev_dbg(&client->dev, "SMBALERT interrupts are "
+ "enabled.\n");
+ }
+ if (data->config1 & CFG1_AIN8_9) {
+ dev_dbg(&client->dev, "in8 and in9 enabled. "
+ "temp3 disabled.\n");
+ } else {
+ dev_dbg(&client->dev, "temp3 enabled. in8 and "
+ "in9 disabled.\n");
+ }
+ if (data->config1 & CFG1_THERM_HOT) {
+ dev_dbg(&client->dev, "Automatic THERM, PWM, "
+ "and temp limits enabled.\n");
+ }
+
+ value = data->config3;
+ if (data->config3 & CFG3_GPIO16_ENABLE) {
+ dev_dbg(&client->dev, "GPIO16 enabled. THERM"
+ "pin disabled.\n");
+ } else {
+ dev_dbg(&client->dev, "THERM pin enabled. "
+ "GPIO16 disabled.\n");
+ }
+ if (data->config3 & CFG3_VREF_250) {
+ dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
+ } else {
+ dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
+ }
+ /* Read and pick apart the existing GPIO configuration */
+ value = 0;
+ for (i = 0;i <= 15;++i) {
+ if ((i & 0x03) == 0) {
+ value = adm1026_read_value(client,
+ ADM1026_REG_GPIO_CFG_0_3 + i/4);
+ }
+ data->gpio_config[i] = value & 0x03;
+ value >>= 2;
+ }
+ data->gpio_config[16] = (data->config3 >> 6) & 0x03;
+
+ /* ... and then print it */
+ adm1026_print_gpio(client);
+
+ /* If the user asks us to reprogram the GPIO config, then
+ * do it now.
+ */
+ if (gpio_input[0] != -1 || gpio_output[0] != -1
+ || gpio_inverted[0] != -1 || gpio_normal[0] != -1
+ || gpio_fan[0] != -1) {
+ adm1026_fixup_gpio(client);
+ }
+
+ /* WE INTENTIONALLY make no changes to the limits,
+ * offsets, pwms, fans and zones. If they were
+ * configured, we don't want to mess with them.
+ * If they weren't, the default is 100% PWM, no
+ * control and will suffice until 'sensors -s'
+ * can be run by the user. We DO set the default
+ * value for pwm1.auto_pwm_min to its maximum
+ * so that enabling automatic pwm fan control
+ * without first setting a value for pwm1.auto_pwm_min
+ * will not result in potentially dangerous fan speed decrease.
+ */
+ data->pwm1.auto_pwm_min=255;
+ /* Start monitoring */
+ value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+ /* Set MONITOR, clear interrupt acknowledge and s/w reset */
+ value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
+ dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
+ data->config1 = value;
+ adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
+
+ /* initialize fan_div[] to hardware defaults */
+ value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
+ (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
+ for (i = 0;i <= 7;++i) {
+ data->fan_div[i] = DIV_FROM_REG(value & 0x03);
+ value >>= 2;
+ }
+}
+
+void adm1026_print_gpio(struct i2c_client *client)
+{
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int i;
+
+ dev_dbg(&client->dev, "GPIO config is:");
+ for (i = 0;i <= 7;++i) {
+ if (data->config2 & (1 << i)) {
+ dev_dbg(&client->dev, "\t%sGP%s%d\n",
+ data->gpio_config[i] & 0x02 ? "" : "!",
+ data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+ i);
+ } else {
+ dev_dbg(&client->dev, "\tFAN%d\n", i);
+ }
+ }
+ for (i = 8;i <= 15;++i) {
+ dev_dbg(&client->dev, "\t%sGP%s%d\n",
+ data->gpio_config[i] & 0x02 ? "" : "!",
+ data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+ i);
+ }
+ if (data->config3 & CFG3_GPIO16_ENABLE) {
+ dev_dbg(&client->dev, "\t%sGP%s16\n",
+ data->gpio_config[16] & 0x02 ? "" : "!",
+ data->gpio_config[16] & 0x01 ? "OUT" : "IN");
+ } else {
+ /* GPIO16 is THERM */
+ dev_dbg(&client->dev, "\tTHERM\n");
+ }
+}
+
+void adm1026_fixup_gpio(struct i2c_client *client)
+{
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int i;
+ int value;
+
+ /* Make the changes requested. */
+ /* We may need to unlock/stop monitoring or soft-reset the
+ * chip before we can make changes. This hasn't been
+ * tested much. FIXME
+ */
+
+ /* Make outputs */
+ for (i = 0;i <= 16;++i) {
+ if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
+ data->gpio_config[gpio_output[i]] |= 0x01;
+ }
+ /* if GPIO0-7 is output, it isn't a FAN tach */
+ if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
+ data->config2 |= 1 << gpio_output[i];
+ }
+ }
+
+ /* Input overrides output */
+ for (i = 0;i <= 16;++i) {
+ if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
+ data->gpio_config[gpio_input[i]] &= ~ 0x01;
+ }
+ /* if GPIO0-7 is input, it isn't a FAN tach */
+ if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
+ data->config2 |= 1 << gpio_input[i];
+ }
+ }
+
+ /* Inverted */
+ for (i = 0;i <= 16;++i) {
+ if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
+ data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
+ }
+ }
+
+ /* Normal overrides inverted */
+ for (i = 0;i <= 16;++i) {
+ if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
+ data->gpio_config[gpio_normal[i]] |= 0x02;
+ }
+ }
+
+ /* Fan overrides input and output */
+ for (i = 0;i <= 7;++i) {
+ if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
+ data->config2 &= ~(1 << gpio_fan[i]);
+ }
+ }
+
+ /* Write new configs to registers */
+ adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
+ data->config3 = (data->config3 & 0x3f)
+ | ((data->gpio_config[16] & 0x03) << 6);
+ adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
+ for (i = 15, value = 0;i >= 0;--i) {
+ value <<= 2;
+ value |= data->gpio_config[i] & 0x03;
+ if ((i & 0x03) == 0) {
+ adm1026_write_value(client,
+ ADM1026_REG_GPIO_CFG_0_3 + i/4,
+ value);
+ value = 0;
+ }
+ }
+
+ /* Print the new config */
+ adm1026_print_gpio(client);
+}
+
+
+static struct adm1026_data *adm1026_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int i;
+ long value, alarms, gpio;
+
+ down(&data->update_lock);
+ if (!data->valid
+ || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) {
+ /* Things that change quickly */
+ dev_dbg(&client->dev,"Reading sensor values\n");
+ for (i = 0;i <= 16;++i) {
+ data->in[i] =
+ adm1026_read_value(client, ADM1026_REG_IN[i]);
+ }
+
+ for (i = 0;i <= 7;++i) {
+ data->fan[i] =
+ adm1026_read_value(client, ADM1026_REG_FAN(i));
+ }
+
+ for (i = 0;i <= 2;++i) {
+ /* NOTE: temp[] is s8 and we assume 2's complement
+ * "conversion" in the assignment */
+ data->temp[i] =
+ adm1026_read_value(client, ADM1026_REG_TEMP[i]);
+ }
+
+ data->pwm1.pwm = adm1026_read_value(client,
+ ADM1026_REG_PWM);
+ data->analog_out = adm1026_read_value(client,
+ ADM1026_REG_DAC);
+ /* GPIO16 is MSbit of alarms, move it to gpio */
+ alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
+ gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
+ alarms &= 0x7f;
+ alarms <<= 8;
+ alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
+ alarms <<= 8;
+ alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
+ alarms <<= 8;
+ alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
+ data->alarms = alarms;
+
+ /* Read the GPIO values */
+ gpio |= adm1026_read_value(client,
+ ADM1026_REG_GPIO_STATUS_8_15);
+ gpio <<= 8;
+ gpio |= adm1026_read_value(client,
+ ADM1026_REG_GPIO_STATUS_0_7);
+ data->gpio = gpio;
+
+ data->last_reading = jiffies;
+ }; /* last_reading */
+
+ if (!data->valid ||
+ time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
+ /* Things that don't change often */
+ dev_dbg(&client->dev, "Reading config values\n");
+ for (i = 0;i <= 16;++i) {
+ data->in_min[i] = adm1026_read_value(client,
+ ADM1026_REG_IN_MIN[i]);
+ data->in_max[i] = adm1026_read_value(client,
+ ADM1026_REG_IN_MAX[i]);
+ }
+
+ value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
+ | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
+ << 8);
+ for (i = 0;i <= 7;++i) {
+ data->fan_min[i] = adm1026_read_value(client,
+ ADM1026_REG_FAN_MIN(i));
+ data->fan_div[i] = DIV_FROM_REG(value & 0x03);
+ value >>= 2;
+ }
+
+ for (i = 0; i <= 2; ++i) {
+ /* NOTE: temp_xxx[] are s8 and we assume 2's
+ * complement "conversion" in the assignment
+ */
+ data->temp_min[i] = adm1026_read_value(client,
+ ADM1026_REG_TEMP_MIN[i]);
+ data->temp_max[i] = adm1026_read_value(client,
+ ADM1026_REG_TEMP_MAX[i]);
+ data->temp_tmin[i] = adm1026_read_value(client,
+ ADM1026_REG_TEMP_TMIN[i]);
+ data->temp_crit[i] = adm1026_read_value(client,
+ ADM1026_REG_TEMP_THERM[i]);
+ data->temp_offset[i] = adm1026_read_value(client,
+ ADM1026_REG_TEMP_OFFSET[i]);
+ }
+
+ /* Read the STATUS/alarm masks */
+ alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
+ gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
+ alarms = (alarms & 0x7f) << 8;
+ alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
+ alarms <<= 8;
+ alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
+ alarms <<= 8;
+ alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
+ data->alarm_mask = alarms;
+
+ /* Read the GPIO values */
+ gpio |= adm1026_read_value(client,
+ ADM1026_REG_GPIO_MASK_8_15);
+ gpio <<= 8;
+ gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
+ data->gpio_mask = gpio;
+
+ /* Read various values from CONFIG1 */
+ data->config1 = adm1026_read_value(client,
+ ADM1026_REG_CONFIG1);
+ if (data->config1 & CFG1_PWM_AFC) {
+ data->pwm1.enable = 2;
+ data->pwm1.auto_pwm_min =
+ PWM_MIN_FROM_REG(data->pwm1.pwm);
+ }
+ /* Read the GPIO config */
+ data->config2 = adm1026_read_value(client,
+ ADM1026_REG_CONFIG2);
+ data->config3 = adm1026_read_value(client,
+ ADM1026_REG_CONFIG3);
+ data->gpio_config[16] = (data->config3 >> 6) & 0x03;
+
+ value = 0;
+ for (i = 0;i <= 15;++i) {
+ if ((i & 0x03) == 0) {
+ value = adm1026_read_value(client,
+ ADM1026_REG_GPIO_CFG_0_3 + i/4);
+ }
+ data->gpio_config[i] = value & 0x03;
+ value >>= 2;
+ }
+
+ data->last_config = jiffies;
+ }; /* last_config */
+
+ dev_dbg(&client->dev, "Setting VID from GPIO11-15.\n");
+ data->vid = (data->gpio >> 11) & 0x1f;
+ data->valid = 1;
+ up(&data->update_lock);
+ return data;
+}
+
+static ssize_t show_in(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]));
+}
+static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]));
+}
+static ssize_t set_in_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[nr] = INS_TO_REG(nr, val);
+ adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]));
+}
+static ssize_t set_in_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[nr] = INS_TO_REG(nr, val);
+ adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define in_reg(offset) \
+static ssize_t show_in##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static ssize_t show_in##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_in_min(dev, buf, offset); \
+} \
+static ssize_t set_in##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_min(dev, buf, count, offset); \
+} \
+static ssize_t show_in##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_in_max(dev, buf, offset); \
+} \
+static ssize_t set_in##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_max(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL); \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in##offset##_max, set_in##offset##_max);
+
+
+in_reg(0);
+in_reg(1);
+in_reg(2);
+in_reg(3);
+in_reg(4);
+in_reg(5);
+in_reg(6);
+in_reg(7);
+in_reg(8);
+in_reg(9);
+in_reg(10);
+in_reg(11);
+in_reg(12);
+in_reg(13);
+in_reg(14);
+in_reg(15);
+
+static ssize_t show_in16(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in[16]) -
+ NEG12_OFFSET);
+}
+static ssize_t show_in16_min(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_min[16])
+ - NEG12_OFFSET);
+}
+static ssize_t set_in16_min(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
+ adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_in16_max(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_max[16])
+ - NEG12_OFFSET);
+}
+static ssize_t set_in16_max(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
+ adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL);
+static DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min);
+static DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max);
+
+
+
+
+/* Now add fan read/write functions */
+
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
+ data->fan_div[nr]));
+}
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
+ data->fan_div[nr]));
+}
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
+ adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
+ data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define fan_offset(offset) \
+static ssize_t show_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL); \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_min, set_fan_##offset##_min);
+
+fan_offset(1);
+fan_offset(2);
+fan_offset(3);
+fan_offset(4);
+fan_offset(5);
+fan_offset(6);
+fan_offset(7);
+fan_offset(8);
+
+/* Adjust fan_min to account for new fan divisor */
+static void fixup_fan_min(struct device *dev, int fan, int old_div)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int new_min;
+ int new_div = data->fan_div[fan];
+
+ /* 0 and 0xff are special. Don't adjust them */
+ if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
+ return;
+ }
+
+ new_min = data->fan_min[fan] * old_div / new_div;
+ new_min = SENSORS_LIMIT(new_min, 1, 254);
+ data->fan_min[fan] = new_min;
+ adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
+}
+
+/* Now add fan_div read/write functions */
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", data->fan_div[nr]);
+}
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val,orig_div,new_div,shift;
+
+ val = simple_strtol(buf, NULL, 10);
+ new_div = DIV_TO_REG(val);
+ if (new_div == 0) {
+ return -EINVAL;
+ }
+ down(&data->update_lock);
+ orig_div = data->fan_div[nr];
+ data->fan_div[nr] = DIV_FROM_REG(new_div);
+
+ if (nr < 4) { /* 0 <= nr < 4 */
+ shift = 2 * nr;
+ adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
+ ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
+ (new_div << shift)));
+ } else { /* 3 < nr < 8 */
+ shift = 2 * (nr - 4);
+ adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
+ ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
+ (new_div << shift)));
+ }
+
+ if (data->fan_div[nr] != orig_div) {
+ fixup_fan_min(dev,nr,orig_div);
+ }
+ up(&data->update_lock);
+ return count;
+}
+
+#define fan_offset_div(offset) \
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
+{ \
+ return show_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_div (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_div, set_fan_##offset##_div);
+
+fan_offset_div(1);
+fan_offset_div(2);
+fan_offset_div(3);
+fan_offset_div(4);
+fan_offset_div(5);
+fan_offset_div(6);
+fan_offset_div(7);
+fan_offset_div(8);
+
+/* Temps */
+static ssize_t show_temp(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]));
+}
+static ssize_t set_temp_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_min[nr] = TEMP_TO_REG(val);
+ adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
+ data->temp_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]));
+}
+static ssize_t set_temp_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_max[nr] = TEMP_TO_REG(val);
+ adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
+ data->temp_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+#define temp_reg(offset) \
+static ssize_t show_temp_##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_temp_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp_##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_temp_max(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_max(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, NULL); \
+static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_min, set_temp_##offset##_min); \
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_max, set_temp_##offset##_max);
+
+
+temp_reg(1);
+temp_reg(2);
+temp_reg(3);
+
+static ssize_t show_temp_offset(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
+}
+static ssize_t set_temp_offset(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_offset[nr] = TEMP_TO_REG(val);
+ adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
+ data->temp_offset[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define temp_offset_reg(offset) \
+static ssize_t show_temp_##offset##_offset (struct device *dev, char *buf) \
+{ \
+ return show_temp_offset(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_offset(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_offset, set_temp_##offset##_offset);
+
+temp_offset_reg(1);
+temp_offset_reg(2);
+temp_offset_reg(3);
+
+static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, char *buf,
+ int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(
+ ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
+}
+static ssize_t show_temp_auto_point2_temp(struct device *dev, char *buf,
+ int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
+ ADM1026_FAN_CONTROL_TEMP_RANGE));
+}
+static ssize_t show_temp_auto_point1_temp(struct device *dev, char *buf,
+ int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
+}
+static ssize_t set_temp_auto_point1_temp(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_tmin[nr] = TEMP_TO_REG(val);
+ adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
+ data->temp_tmin[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define temp_auto_point(offset) \
+static ssize_t show_temp##offset##_auto_point1_temp (struct device *dev, \
+ char *buf) \
+{ \
+ return show_temp_auto_point1_temp(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp##offset##_auto_point1_temp (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_auto_point1_temp(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_temp##offset##_auto_point1_temp_hyst (struct device \
+ *dev, char *buf) \
+{ \
+ return show_temp_auto_point1_temp_hyst(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp##offset##_auto_point2_temp (struct device *dev, \
+ char *buf) \
+{ \
+ return show_temp_auto_point2_temp(dev, buf, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_auto_point1_temp, S_IRUGO | S_IWUSR, \
+ show_temp##offset##_auto_point1_temp, \
+ set_temp##offset##_auto_point1_temp); \
+static DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO, \
+ show_temp##offset##_auto_point1_temp_hyst, NULL); \
+static DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
+ show_temp##offset##_auto_point2_temp, NULL);
+
+temp_auto_point(1);
+temp_auto_point(2);
+temp_auto_point(3);
+
+static ssize_t show_temp_crit_enable(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
+}
+static ssize_t set_temp_crit_enable(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ if ((val == 1) || (val==0)) {
+ down(&data->update_lock);
+ data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
+ adm1026_write_value(client, ADM1026_REG_CONFIG1,
+ data->config1);
+ up(&data->update_lock);
+ }
+ return count;
+}
+
+static DEVICE_ATTR(temp1_crit_enable, S_IRUGO | S_IWUSR,
+ show_temp_crit_enable, set_temp_crit_enable);
+
+static DEVICE_ATTR(temp2_crit_enable, S_IRUGO | S_IWUSR,
+ show_temp_crit_enable, set_temp_crit_enable);
+
+static DEVICE_ATTR(temp3_crit_enable, S_IRUGO | S_IWUSR,
+ show_temp_crit_enable, set_temp_crit_enable);
+
+
+static ssize_t show_temp_crit(struct device *dev, char *buf, int nr)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
+}
+static ssize_t set_temp_crit(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_crit[nr] = TEMP_TO_REG(val);
+ adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
+ data->temp_crit[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define temp_crit_reg(offset) \
+static ssize_t show_temp_##offset##_crit (struct device *dev, char *buf) \
+{ \
+ return show_temp_crit(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_crit (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_crit(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_crit, set_temp_##offset##_crit);
+
+temp_crit_reg(1);
+temp_crit_reg(2);
+temp_crit_reg(3);
+
+static ssize_t show_analog_out_reg(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", DAC_FROM_REG(data->analog_out));
+}
+static ssize_t set_analog_out_reg(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->analog_out = DAC_TO_REG(val);
+ adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
+ set_analog_out_reg);
+
+static ssize_t show_vid_reg(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", vid_from_reg(data->vid & 0x3f, data->vrm));
+}
+
+static DEVICE_ATTR(vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_vrm_reg(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", data->vrm);
+}
+static ssize_t store_vrm_reg(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+
+ data->vrm = simple_strtol(buf, NULL, 10);
+ return count;
+}
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t show_alarms_reg(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) (data->alarms));
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+static ssize_t show_alarm_mask(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%ld\n", data->alarm_mask);
+}
+static ssize_t set_alarm_mask(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ unsigned long mask;
+
+ down(&data->update_lock);
+ data->alarm_mask = val & 0x7fffffff;
+ mask = data->alarm_mask
+ | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
+ adm1026_write_value(client, ADM1026_REG_MASK1,
+ mask & 0xff);
+ mask >>= 8;
+ adm1026_write_value(client, ADM1026_REG_MASK2,
+ mask & 0xff);
+ mask >>= 8;
+ adm1026_write_value(client, ADM1026_REG_MASK3,
+ mask & 0xff);
+ mask >>= 8;
+ adm1026_write_value(client, ADM1026_REG_MASK4,
+ mask & 0xff);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
+ set_alarm_mask);
+
+
+static ssize_t show_gpio(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%ld\n", data->gpio);
+}
+static ssize_t set_gpio(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ long gpio;
+
+ down(&data->update_lock);
+ data->gpio = val & 0x1ffff;
+ gpio = data->gpio;
+ adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7,gpio & 0xff);
+ gpio >>= 8;
+ adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15,gpio & 0xff);
+ gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
+ adm1026_write_value(client, ADM1026_REG_STATUS4,gpio & 0xff);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
+
+
+static ssize_t show_gpio_mask(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%ld\n", data->gpio_mask);
+}
+static ssize_t set_gpio_mask(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ long mask;
+
+ down(&data->update_lock);
+ data->gpio_mask = val & 0x1ffff;
+ mask = data->gpio_mask;
+ adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7,mask & 0xff);
+ mask >>= 8;
+ adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15,mask & 0xff);
+ mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
+ adm1026_write_value(client, ADM1026_REG_MASK1,mask & 0xff);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
+
+static ssize_t show_pwm_reg(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm1.pwm));
+}
+static ssize_t set_pwm_reg(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+
+ if (data->pwm1.enable == 1) {
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->pwm1.pwm = PWM_TO_REG(val);
+ adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
+ up(&data->update_lock);
+ }
+ return count;
+}
+static ssize_t show_auto_pwm_min(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", data->pwm1.auto_pwm_min);
+}
+static ssize_t set_auto_pwm_min(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->pwm1.auto_pwm_min = SENSORS_LIMIT(val,0,255);
+ if (data->pwm1.enable == 2) { /* apply immediately */
+ data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
+ PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
+ adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
+ }
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_auto_pwm_max(struct device *dev, char *buf)
+{
+ return sprintf(buf,"%d\n", ADM1026_PWM_MAX);
+}
+static ssize_t show_pwm_enable(struct device *dev, char *buf)
+{
+ struct adm1026_data *data = adm1026_update_device(dev);
+ return sprintf(buf,"%d\n", data->pwm1.enable);
+}
+static ssize_t set_pwm_enable(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1026_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ int old_enable;
+
+ if ((val >= 0) && (val < 3)) {
+ down(&data->update_lock);
+ old_enable = data->pwm1.enable;
+ data->pwm1.enable = val;
+ data->config1 = (data->config1 & ~CFG1_PWM_AFC)
+ | ((val == 2) ? CFG1_PWM_AFC : 0);
+ adm1026_write_value(client, ADM1026_REG_CONFIG1,
+ data->config1);
+ if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
+ data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
+ PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
+ adm1026_write_value(client, ADM1026_REG_PWM,
+ data->pwm1.pwm);
+ } else if (!((old_enable == 1) && (val == 1))) {
+ /* set pwm to safe value */
+ data->pwm1.pwm = 255;
+ adm1026_write_value(client, ADM1026_REG_PWM,
+ data->pwm1.pwm);
+ }
+ up(&data->update_lock);
+ }
+ return count;
+}
+
+/* enable PWM fan control */
+static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
+static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
+static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
+static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ set_pwm_enable);
+static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ set_pwm_enable);
+static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ set_pwm_enable);
+static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_auto_pwm_min, set_auto_pwm_min);
+static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_auto_pwm_min, set_auto_pwm_min);
+static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_auto_pwm_min, set_auto_pwm_min);
+
+static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+
+int adm1026_detect(struct i2c_adapter *adapter, int address,
+ int kind)
+{
+ int company, verstep;
+ struct i2c_client *new_client;
+ struct adm1026_data *data;
+ int err = 0;
+ const char *type_name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+ /* We need to be able to do byte I/O */
+ goto exit;
+ };
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access adm1026_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ memset(data, 0, sizeof(struct adm1026_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &adm1026_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+
+ company = adm1026_read_value(new_client, ADM1026_REG_COMPANY);
+ verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP);
+
+ dev_dbg(&new_client->dev, "Detecting device at %d,0x%02x with"
+ " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
+ i2c_adapter_id(new_client->adapter), new_client->addr,
+ company, verstep);
+
+ /* If auto-detecting, Determine the chip type. */
+ if (kind <= 0) {
+ dev_dbg(&new_client->dev, "Autodetecting device at %d,0x%02x "
+ "...\n", i2c_adapter_id(adapter), address);
+ if (company == ADM1026_COMPANY_ANALOG_DEV
+ && verstep == ADM1026_VERSTEP_ADM1026) {
+ kind = adm1026;
+ } else if (company == ADM1026_COMPANY_ANALOG_DEV
+ && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
+ dev_err(&adapter->dev, ": Unrecognized stepping "
+ "0x%02x. Defaulting to ADM1026.\n", verstep);
+ kind = adm1026;
+ } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
+ dev_err(&adapter->dev, ": Found version/stepping "
+ "0x%02x. Assuming generic ADM1026.\n",
+ verstep);
+ kind = any_chip;
+ } else {
+ dev_dbg(&new_client->dev, ": Autodetection "
+ "failed\n");
+ /* Not an ADM1026 ... */
+ if (kind == 0) { /* User used force=x,y */
+ dev_err(&adapter->dev, "Generic ADM1026 not "
+ "found at %d,0x%02x. Try "
+ "force_adm1026.\n",
+ i2c_adapter_id(adapter), address);
+ }
+ err = 0;
+ goto exitfree;
+ }
+ }
+
+ /* Fill in the chip specific driver values */
+ switch (kind) {
+ case any_chip :
+ type_name = "adm1026";
+ break;
+ case adm1026 :
+ type_name = "adm1026";
+ break;
+ default :
+ dev_err(&adapter->dev, ": Internal error, invalid "
+ "kind (%d)!", kind);
+ err = -EFAULT;
+ goto exitfree;
+ }
+ strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
+
+ /* Fill in the remaining client fields */
+ data->type = kind;
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exitfree;
+
+ /* Set the VRM version */
+ data->vrm = i2c_which_vrm();
+
+ /* Initialize the ADM1026 chip */
+ adm1026_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in5_input);
+ device_create_file(&new_client->dev, &dev_attr_in5_max);
+ device_create_file(&new_client->dev, &dev_attr_in5_min);
+ device_create_file(&new_client->dev, &dev_attr_in6_input);
+ device_create_file(&new_client->dev, &dev_attr_in6_max);
+ device_create_file(&new_client->dev, &dev_attr_in6_min);
+ device_create_file(&new_client->dev, &dev_attr_in7_input);
+ device_create_file(&new_client->dev, &dev_attr_in7_max);
+ device_create_file(&new_client->dev, &dev_attr_in7_min);
+ device_create_file(&new_client->dev, &dev_attr_in8_input);
+ device_create_file(&new_client->dev, &dev_attr_in8_max);
+ device_create_file(&new_client->dev, &dev_attr_in8_min);
+ device_create_file(&new_client->dev, &dev_attr_in9_input);
+ device_create_file(&new_client->dev, &dev_attr_in9_max);
+ device_create_file(&new_client->dev, &dev_attr_in9_min);
+ device_create_file(&new_client->dev, &dev_attr_in10_input);
+ device_create_file(&new_client->dev, &dev_attr_in10_max);
+ device_create_file(&new_client->dev, &dev_attr_in10_min);
+ device_create_file(&new_client->dev, &dev_attr_in11_input);
+ device_create_file(&new_client->dev, &dev_attr_in11_max);
+ device_create_file(&new_client->dev, &dev_attr_in11_min);
+ device_create_file(&new_client->dev, &dev_attr_in12_input);
+ device_create_file(&new_client->dev, &dev_attr_in12_max);
+ device_create_file(&new_client->dev, &dev_attr_in12_min);
+ device_create_file(&new_client->dev, &dev_attr_in13_input);
+ device_create_file(&new_client->dev, &dev_attr_in13_max);
+ device_create_file(&new_client->dev, &dev_attr_in13_min);
+ device_create_file(&new_client->dev, &dev_attr_in14_input);
+ device_create_file(&new_client->dev, &dev_attr_in14_max);
+ device_create_file(&new_client->dev, &dev_attr_in14_min);
+ device_create_file(&new_client->dev, &dev_attr_in15_input);
+ device_create_file(&new_client->dev, &dev_attr_in15_max);
+ device_create_file(&new_client->dev, &dev_attr_in15_min);
+ device_create_file(&new_client->dev, &dev_attr_in16_input);
+ device_create_file(&new_client->dev, &dev_attr_in16_max);
+ device_create_file(&new_client->dev, &dev_attr_in16_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan3_input);
+ device_create_file(&new_client->dev, &dev_attr_fan3_div);
+ device_create_file(&new_client->dev, &dev_attr_fan3_min);
+ device_create_file(&new_client->dev, &dev_attr_fan4_input);
+ device_create_file(&new_client->dev, &dev_attr_fan4_div);
+ device_create_file(&new_client->dev, &dev_attr_fan4_min);
+ device_create_file(&new_client->dev, &dev_attr_fan5_input);
+ device_create_file(&new_client->dev, &dev_attr_fan5_div);
+ device_create_file(&new_client->dev, &dev_attr_fan5_min);
+ device_create_file(&new_client->dev, &dev_attr_fan6_input);
+ device_create_file(&new_client->dev, &dev_attr_fan6_div);
+ device_create_file(&new_client->dev, &dev_attr_fan6_min);
+ device_create_file(&new_client->dev, &dev_attr_fan7_input);
+ device_create_file(&new_client->dev, &dev_attr_fan7_div);
+ device_create_file(&new_client->dev, &dev_attr_fan7_min);
+ device_create_file(&new_client->dev, &dev_attr_fan8_input);
+ device_create_file(&new_client->dev, &dev_attr_fan8_div);
+ device_create_file(&new_client->dev, &dev_attr_fan8_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_offset);
+ device_create_file(&new_client->dev, &dev_attr_temp2_offset);
+ device_create_file(&new_client->dev, &dev_attr_temp3_offset);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp1_auto_point1_temp);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp2_auto_point1_temp);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp3_auto_point1_temp);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp1_auto_point1_temp_hyst);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp2_auto_point1_temp_hyst);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp3_auto_point1_temp_hyst);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp1_auto_point2_temp);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp2_auto_point2_temp);
+ device_create_file(&new_client->dev,
+ &dev_attr_temp3_auto_point2_temp);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp3_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit_enable);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit_enable);
+ device_create_file(&new_client->dev, &dev_attr_temp3_crit_enable);
+ device_create_file(&new_client->dev, &dev_attr_vid);
+ device_create_file(&new_client->dev, &dev_attr_vrm);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ device_create_file(&new_client->dev, &dev_attr_alarm_mask);
+ device_create_file(&new_client->dev, &dev_attr_gpio);
+ device_create_file(&new_client->dev, &dev_attr_gpio_mask);
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ device_create_file(&new_client->dev, &dev_attr_pwm2);
+ device_create_file(&new_client->dev, &dev_attr_pwm3);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
+ device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
+ device_create_file(&new_client->dev, &dev_attr_temp1_auto_point1_pwm);
+ device_create_file(&new_client->dev, &dev_attr_temp2_auto_point1_pwm);
+ device_create_file(&new_client->dev, &dev_attr_temp3_auto_point1_pwm);
+ device_create_file(&new_client->dev, &dev_attr_temp1_auto_point2_pwm);
+ device_create_file(&new_client->dev, &dev_attr_temp2_auto_point2_pwm);
+ device_create_file(&new_client->dev, &dev_attr_temp3_auto_point2_pwm);
+ device_create_file(&new_client->dev, &dev_attr_analog_out);
+ return 0;
+
+ /* Error out and cleanup code */
+exitfree:
+ kfree(new_client);
+exit:
+ return err;
+}
+static int __init sm_adm1026_init(void)
+{
+ return i2c_add_driver(&adm1026_driver);
+}
+
+static void __exit sm_adm1026_exit(void)
+{
+ i2c_del_driver(&adm1026_driver);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
+ "Justin Thiessen <jthiessen@penguincomputing.com>");
+MODULE_DESCRIPTION("ADM1026 driver");
+
+module_init(sm_adm1026_init);
+module_exit(sm_adm1026_exit);
diff --git a/drivers/i2c/chips/adm1031.c b/drivers/i2c/chips/adm1031.c
new file mode 100644
index 0000000..d4385a2
--- /dev/null
+++ b/drivers/i2c/chips/adm1031.c
@@ -0,0 +1,977 @@
+/*
+ adm1031.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Based on lm75.c and lm85.c
+ Supports adm1030 / adm1031
+ Copyright (C) 2004 Alexandre d'Alton <alex@alexdalton.org>
+ Reworked by Jean Delvare <khali@linux-fr.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* Following macros takes channel parameter starting from 0 to 2 */
+#define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr))
+#define ADM1031_REG_FAN_DIV(nr) (0x20 + (nr))
+#define ADM1031_REG_PWM (0x22)
+#define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr))
+
+#define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4*(nr))
+#define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4*(nr))
+#define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4*(nr))
+
+#define ADM1031_REG_TEMP(nr) (0xa + (nr))
+#define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr))
+
+#define ADM1031_REG_STATUS(nr) (0x2 + (nr))
+
+#define ADM1031_REG_CONF1 0x0
+#define ADM1031_REG_CONF2 0x1
+#define ADM1031_REG_EXT_TEMP 0x6
+
+#define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */
+#define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */
+#define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */
+
+#define ADM1031_CONF2_PWM1_ENABLE 0x01
+#define ADM1031_CONF2_PWM2_ENABLE 0x02
+#define ADM1031_CONF2_TACH1_ENABLE 0x04
+#define ADM1031_CONF2_TACH2_ENABLE 0x08
+#define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan))
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_2(adm1030, adm1031);
+
+typedef u8 auto_chan_table_t[8][2];
+
+/* Each client has this additional data */
+struct adm1031_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ int chip_type;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+ /* The chan_select_table contains the possible configurations for
+ * auto fan control.
+ */
+ auto_chan_table_t *chan_select_table;
+ u16 alarm;
+ u8 conf1;
+ u8 conf2;
+ u8 fan[2];
+ u8 fan_div[2];
+ u8 fan_min[2];
+ u8 pwm[2];
+ u8 old_pwm[2];
+ s8 temp[3];
+ u8 ext_temp[3];
+ u8 auto_temp[3];
+ u8 auto_temp_min[3];
+ u8 auto_temp_off[3];
+ u8 auto_temp_max[3];
+ s8 temp_min[3];
+ s8 temp_max[3];
+ s8 temp_crit[3];
+};
+
+static int adm1031_attach_adapter(struct i2c_adapter *adapter);
+static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind);
+static void adm1031_init_client(struct i2c_client *client);
+static int adm1031_detach_client(struct i2c_client *client);
+static struct adm1031_data *adm1031_update_device(struct device *dev);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver adm1031_driver = {
+ .owner = THIS_MODULE,
+ .name = "adm1031",
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = adm1031_attach_adapter,
+ .detach_client = adm1031_detach_client,
+};
+
+static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int
+adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
+{
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+
+#define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \
+ ((val + 500) / 1000)))
+
+#define TEMP_FROM_REG(val) ((val) * 1000)
+
+#define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125)
+
+#define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
+
+static int FAN_TO_REG(int reg, int div)
+{
+ int tmp;
+ tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div);
+ return tmp > 255 ? 255 : tmp;
+}
+
+#define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6))
+
+#define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4)
+#define PWM_FROM_REG(val) ((val) << 4)
+
+#define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7)
+#define FAN_CHAN_TO_REG(val, reg) \
+ (((reg) & 0x1F) | (((val) << 5) & 0xe0))
+
+#define AUTO_TEMP_MIN_TO_REG(val, reg) \
+ ((((val)/500) & 0xf8)|((reg) & 0x7))
+#define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7)))
+#define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2))
+
+#define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2)
+
+#define AUTO_TEMP_OFF_FROM_REG(reg) \
+ (AUTO_TEMP_MIN_FROM_REG(reg) - 5000)
+
+#define AUTO_TEMP_MAX_FROM_REG(reg) \
+ (AUTO_TEMP_RANGE_FROM_REG(reg) + \
+ AUTO_TEMP_MIN_FROM_REG(reg))
+
+static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm)
+{
+ int ret;
+ int range = val - AUTO_TEMP_MIN_FROM_REG(reg);
+
+ range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm);
+ ret = ((reg & 0xf8) |
+ (range < 10000 ? 0 :
+ range < 20000 ? 1 :
+ range < 40000 ? 2 : range < 80000 ? 3 : 4));
+ return ret;
+}
+
+/* FAN auto control */
+#define GET_FAN_AUTO_BITFIELD(data, idx) \
+ (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2]
+
+/* The tables below contains the possible values for the auto fan
+ * control bitfields. the index in the table is the register value.
+ * MSb is the auto fan control enable bit, so the four first entries
+ * in the table disables auto fan control when both bitfields are zero.
+ */
+static auto_chan_table_t auto_channel_select_table_adm1031 = {
+ {0, 0}, {0, 0}, {0, 0}, {0, 0},
+ {2 /*0b010 */ , 4 /*0b100 */ },
+ {2 /*0b010 */ , 2 /*0b010 */ },
+ {4 /*0b100 */ , 4 /*0b100 */ },
+ {7 /*0b111 */ , 7 /*0b111 */ },
+};
+
+static auto_chan_table_t auto_channel_select_table_adm1030 = {
+ {0, 0}, {0, 0}, {0, 0}, {0, 0},
+ {2 /*0b10 */ , 0},
+ {0xff /*invalid */ , 0},
+ {0xff /*invalid */ , 0},
+ {3 /*0b11 */ , 0},
+};
+
+/* That function checks if a bitfield is valid and returns the other bitfield
+ * nearest match if no exact match where found.
+ */
+static int
+get_fan_auto_nearest(struct adm1031_data *data,
+ int chan, u8 val, u8 reg, u8 * new_reg)
+{
+ int i;
+ int first_match = -1, exact_match = -1;
+ u8 other_reg_val =
+ (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1];
+
+ if (val == 0) {
+ *new_reg = 0;
+ return 0;
+ }
+
+ for (i = 0; i < 8; i++) {
+ if ((val == (*data->chan_select_table)[i][chan]) &&
+ ((*data->chan_select_table)[i][chan ? 0 : 1] ==
+ other_reg_val)) {
+ /* We found an exact match */
+ exact_match = i;
+ break;
+ } else if (val == (*data->chan_select_table)[i][chan] &&
+ first_match == -1) {
+ /* Save the first match in case of an exact match has not been
+ * found
+ */
+ first_match = i;
+ }
+ }
+
+ if (exact_match >= 0) {
+ *new_reg = exact_match;
+ } else if (first_match >= 0) {
+ *new_reg = first_match;
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static ssize_t show_fan_auto_channel(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr));
+}
+
+static ssize_t
+set_fan_auto_channel(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ u8 reg;
+ int ret;
+ u8 old_fan_mode;
+
+ old_fan_mode = data->conf1;
+
+ down(&data->update_lock);
+
+ if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) {
+ up(&data->update_lock);
+ return ret;
+ }
+ if (((data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1)) & ADM1031_CONF1_AUTO_MODE) ^
+ (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) {
+ if (data->conf1 & ADM1031_CONF1_AUTO_MODE){
+ /* Switch to Auto Fan Mode
+ * Save PWM registers
+ * Set PWM registers to 33% Both */
+ data->old_pwm[0] = data->pwm[0];
+ data->old_pwm[1] = data->pwm[1];
+ adm1031_write_value(client, ADM1031_REG_PWM, 0x55);
+ } else {
+ /* Switch to Manual Mode */
+ data->pwm[0] = data->old_pwm[0];
+ data->pwm[1] = data->old_pwm[1];
+ /* Restore PWM registers */
+ adm1031_write_value(client, ADM1031_REG_PWM,
+ data->pwm[0] | (data->pwm[1] << 4));
+ }
+ }
+ data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
+ adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1);
+ up(&data->update_lock);
+ return count;
+}
+
+#define fan_auto_channel_offset(offset) \
+static ssize_t show_fan_auto_channel_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan_auto_channel(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_auto_channel_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_auto_channel(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(auto_fan##offset##_channel, S_IRUGO | S_IWUSR, \
+ show_fan_auto_channel_##offset, \
+ set_fan_auto_channel_##offset)
+
+fan_auto_channel_offset(1);
+fan_auto_channel_offset(2);
+
+/* Auto Temps */
+static ssize_t show_auto_temp_off(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n",
+ AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr]));
+}
+static ssize_t show_auto_temp_min(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n",
+ AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr]));
+}
+static ssize_t
+set_auto_temp_min(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
+ adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
+ data->auto_temp[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_auto_temp_max(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n",
+ AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr]));
+}
+static ssize_t
+set_auto_temp_max(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]);
+ adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
+ data->temp_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define auto_temp_reg(offset) \
+static ssize_t show_auto_temp_##offset##_off (struct device *dev, char *buf) \
+{ \
+ return show_auto_temp_off(dev, buf, offset - 1); \
+} \
+static ssize_t show_auto_temp_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_auto_temp_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_auto_temp_##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_auto_temp_max(dev, buf, offset - 1); \
+} \
+static ssize_t set_auto_temp_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_auto_temp_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_auto_temp_##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_auto_temp_max(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \
+ show_auto_temp_##offset##_off, NULL); \
+static DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \
+ show_auto_temp_##offset##_min, set_auto_temp_##offset##_min);\
+static DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \
+ show_auto_temp_##offset##_max, set_auto_temp_##offset##_max)
+
+auto_temp_reg(1);
+auto_temp_reg(2);
+auto_temp_reg(3);
+
+/* pwm */
+static ssize_t show_pwm(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
+}
+static ssize_t
+set_pwm(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ int reg;
+
+ down(&data->update_lock);
+ if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) &&
+ (((val>>4) & 0xf) != 5)) {
+ /* In automatic mode, the only PWM accepted is 33% */
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+ data->pwm[nr] = PWM_TO_REG(val);
+ reg = adm1031_read_value(client, ADM1031_REG_PWM);
+ adm1031_write_value(client, ADM1031_REG_PWM,
+ nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf)
+ : (data->pwm[nr] & 0xf) | (reg & 0xf0));
+ up(&data->update_lock);
+ return count;
+}
+
+#define pwm_reg(offset) \
+static ssize_t show_pwm_##offset (struct device *dev, char *buf) \
+{ \
+ return show_pwm(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
+ show_pwm_##offset, set_pwm_##offset)
+
+pwm_reg(1);
+pwm_reg(2);
+
+/* Fans */
+
+/*
+ * That function checks the cases where the fan reading is not
+ * relevent. It is used to provide 0 as fan reading when the fan is
+ * not supposed to run
+ */
+static int trust_fan_readings(struct adm1031_data *data, int chan)
+{
+ int res = 0;
+
+ if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
+ switch (data->conf1 & 0x60) {
+ case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */
+ res = data->temp[chan+1] >=
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
+ break;
+ case 0x20: /* remote temp1 controls both fans */
+ res =
+ data->temp[1] >=
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]);
+ break;
+ case 0x40: /* remote temp2 controls both fans */
+ res =
+ data->temp[2] >=
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]);
+ break;
+ case 0x60: /* max controls both fans */
+ res =
+ data->temp[0] >=
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0])
+ || data->temp[1] >=
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1])
+ || (data->chip_type == adm1031
+ && data->temp[2] >=
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]));
+ break;
+ }
+ } else {
+ res = data->pwm[chan] > 0;
+ }
+ return res;
+}
+
+
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ int value;
+
+ value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr],
+ FAN_DIV_FROM_REG(data->fan_div[nr])) : 0;
+ return sprintf(buf, "%d\n", value);
+}
+
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr]));
+}
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n",
+ FAN_FROM_REG(data->fan_min[nr],
+ FAN_DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t
+set_fan_min(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ if (val) {
+ data->fan_min[nr] =
+ FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr]));
+ } else {
+ data->fan_min[nr] = 0xff;
+ }
+ adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t
+set_fan_div(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ u8 tmp;
+ int old_div;
+ int new_min;
+
+ tmp = val == 8 ? 0xc0 :
+ val == 4 ? 0x80 :
+ val == 2 ? 0x40 :
+ val == 1 ? 0x00 :
+ 0xff;
+ if (tmp == 0xff)
+ return -EINVAL;
+
+ down(&data->update_lock);
+ old_div = FAN_DIV_FROM_REG(data->fan_div[nr]);
+ data->fan_div[nr] = (tmp & 0xC0) | (0x3f & data->fan_div[nr]);
+ new_min = data->fan_min[nr] * old_div /
+ FAN_DIV_FROM_REG(data->fan_div[nr]);
+ data->fan_min[nr] = new_min > 0xff ? 0xff : new_min;
+ data->fan[nr] = data->fan[nr] * old_div /
+ FAN_DIV_FROM_REG(data->fan_div[nr]);
+
+ adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr),
+ data->fan_div[nr]);
+ adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr),
+ data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define fan_offset(offset) \
+static ssize_t show_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
+{ \
+ return show_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_div (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \
+ NULL); \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_min, set_fan_##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_div, set_fan_##offset##_div); \
+static DEVICE_ATTR(auto_fan##offset##_min_pwm, S_IRUGO | S_IWUSR, \
+ show_pwm_##offset, set_pwm_##offset)
+
+fan_offset(1);
+fan_offset(2);
+
+
+/* Temps */
+static ssize_t show_temp(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ int ext;
+ ext = nr == 0 ?
+ ((data->ext_temp[nr] >> 6) & 0x3) * 2 :
+ (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7));
+ return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext));
+}
+static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
+}
+static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
+}
+static ssize_t show_temp_crit(struct device *dev, char *buf, int nr)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
+}
+static ssize_t
+set_temp_min(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val;
+
+ val = simple_strtol(buf, NULL, 10);
+ val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+ down(&data->update_lock);
+ data->temp_min[nr] = TEMP_TO_REG(val);
+ adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr),
+ data->temp_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t
+set_temp_max(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val;
+
+ val = simple_strtol(buf, NULL, 10);
+ val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+ down(&data->update_lock);
+ data->temp_max[nr] = TEMP_TO_REG(val);
+ adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr),
+ data->temp_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t
+set_temp_crit(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int val;
+
+ val = simple_strtol(buf, NULL, 10);
+ val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+ down(&data->update_lock);
+ data->temp_crit[nr] = TEMP_TO_REG(val);
+ adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr),
+ data->temp_crit[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define temp_reg(offset) \
+static ssize_t show_temp_##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_temp_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp_##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_temp_max(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp_##offset##_crit (struct device *dev, char *buf) \
+{ \
+ return show_temp_crit(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_max(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_crit (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_crit(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \
+ NULL); \
+static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_min, set_temp_##offset##_min); \
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_max, set_temp_##offset##_max); \
+static DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_crit, set_temp_##offset##_crit)
+
+temp_reg(1);
+temp_reg(2);
+temp_reg(3);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n", data->alarm);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+
+static int adm1031_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, adm1031_detect);
+}
+
+/* This function is called by i2c_detect */
+static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct adm1031_data *data;
+ int err = 0;
+ const char *name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct adm1031_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct adm1031_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &adm1031_driver;
+ new_client->flags = 0;
+
+ if (kind < 0) {
+ int id, co;
+ id = i2c_smbus_read_byte_data(new_client, 0x3d);
+ co = i2c_smbus_read_byte_data(new_client, 0x3e);
+
+ if (!((id == 0x31 || id == 0x30) && co == 0x41))
+ goto exit_free;
+ kind = (id == 0x30) ? adm1030 : adm1031;
+ }
+
+ if (kind <= 0)
+ kind = adm1031;
+
+ /* Given the detected chip type, set the chip name and the
+ * auto fan control helper table. */
+ if (kind == adm1030) {
+ name = "adm1030";
+ data->chan_select_table = &auto_channel_select_table_adm1030;
+ } else if (kind == adm1031) {
+ name = "adm1031";
+ data->chan_select_table = &auto_channel_select_table_adm1031;
+ }
+ data->chip_type = kind;
+
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the ADM1031 chip */
+ adm1031_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ device_create_file(&new_client->dev, &dev_attr_auto_fan1_channel);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+
+ device_create_file(&new_client->dev, &dev_attr_auto_temp1_off);
+ device_create_file(&new_client->dev, &dev_attr_auto_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_auto_temp1_max);
+
+ device_create_file(&new_client->dev, &dev_attr_auto_temp2_off);
+ device_create_file(&new_client->dev, &dev_attr_auto_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_auto_temp2_max);
+
+ device_create_file(&new_client->dev, &dev_attr_auto_fan1_min_pwm);
+
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ if (kind == adm1031) {
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_pwm2);
+ device_create_file(&new_client->dev,
+ &dev_attr_auto_fan2_channel);
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_min);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_crit);
+ device_create_file(&new_client->dev, &dev_attr_auto_temp3_off);
+ device_create_file(&new_client->dev, &dev_attr_auto_temp3_min);
+ device_create_file(&new_client->dev, &dev_attr_auto_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_auto_fan2_min_pwm);
+ }
+
+ return 0;
+
+exit_free:
+ kfree(new_client);
+exit:
+ return err;
+}
+
+static int adm1031_detach_client(struct i2c_client *client)
+{
+ int ret;
+ if ((ret = i2c_detach_client(client)) != 0) {
+ return ret;
+ }
+ kfree(client);
+ return 0;
+}
+
+static void adm1031_init_client(struct i2c_client *client)
+{
+ unsigned int read_val;
+ unsigned int mask;
+ struct adm1031_data *data = i2c_get_clientdata(client);
+
+ mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE);
+ if (data->chip_type == adm1031) {
+ mask |= (ADM1031_CONF2_PWM2_ENABLE |
+ ADM1031_CONF2_TACH2_ENABLE);
+ }
+ /* Initialize the ADM1031 chip (enables fan speed reading ) */
+ read_val = adm1031_read_value(client, ADM1031_REG_CONF2);
+ if ((read_val | mask) != read_val) {
+ adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
+ }
+
+ read_val = adm1031_read_value(client, ADM1031_REG_CONF1);
+ if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) {
+ adm1031_write_value(client, ADM1031_REG_CONF1, read_val |
+ ADM1031_CONF1_MONITOR_ENABLE);
+ }
+
+}
+
+static struct adm1031_data *adm1031_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int chan;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+
+ dev_dbg(&client->dev, "Starting adm1031 update\n");
+ for (chan = 0;
+ chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) {
+ u8 oldh, newh;
+
+ oldh =
+ adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+ data->ext_temp[chan] =
+ adm1031_read_value(client, ADM1031_REG_EXT_TEMP);
+ newh =
+ adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+ if (newh != oldh) {
+ data->ext_temp[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_EXT_TEMP);
+#ifdef DEBUG
+ oldh =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP(chan));
+
+ /* oldh is actually newer */
+ if (newh != oldh)
+ dev_warn(&client->dev,
+ "Remote temperature may be "
+ "wrong.\n");
+#endif
+ }
+ data->temp[chan] = newh;
+
+ data->temp_min[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_MIN(chan));
+ data->temp_max[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_MAX(chan));
+ data->temp_crit[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_CRIT(chan));
+ data->auto_temp[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_AUTO_TEMP(chan));
+
+ }
+
+ data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1);
+ data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
+
+ data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
+ | (adm1031_read_value(client, ADM1031_REG_STATUS(1))
+ << 8);
+ if (data->chip_type == adm1030) {
+ data->alarm &= 0xc0ff;
+ }
+
+ for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) {
+ data->fan_div[chan] =
+ adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan));
+ data->fan_min[chan] =
+ adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan));
+ data->fan[chan] =
+ adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan));
+ data->pwm[chan] =
+ 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >>
+ (4*chan));
+ }
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_adm1031_init(void)
+{
+ return i2c_add_driver(&adm1031_driver);
+}
+
+static void __exit sensors_adm1031_exit(void)
+{
+ i2c_del_driver(&adm1031_driver);
+}
+
+MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>");
+MODULE_DESCRIPTION("ADM1031/ADM1030 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_adm1031_init);
+module_exit(sensors_adm1031_exit);
diff --git a/drivers/i2c/chips/asb100.c b/drivers/i2c/chips/asb100.c
new file mode 100644
index 0000000..7f89900
--- /dev/null
+++ b/drivers/i2c/chips/asb100.c
@@ -0,0 +1,1066 @@
+/*
+ asb100.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+
+ Copyright (C) 2004 Mark M. Hoffman <mhoffman@lightlink.com>
+
+ (derived from w83781d.c)
+
+ Copyright (C) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
+ Philip Edelbrock <phil@netroedge.com>, and
+ Mark Studebaker <mdsxyz123@yahoo.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ This driver supports the hardware sensor chips: Asus ASB100 and
+ ASB100-A "BACH".
+
+ ASB100-A supports pwm1, while plain ASB100 does not. There is no known
+ way for the driver to tell which one is there.
+
+ Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ asb100 7 3 1 4 0x31 0x0694 yes no
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+#include <linux/init.h>
+#include "lm75.h"
+
+/*
+ HISTORY:
+ 2003-12-29 1.0.0 Ported from lm_sensors project for kernel 2.6
+*/
+#define ASB100_VERSION "1.0.0"
+
+/* I2C addresses to scan */
+static unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END };
+
+/* ISA addresses to scan (none) */
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(asb100);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+ "{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+/* Voltage IN registers 0-6 */
+#define ASB100_REG_IN(nr) (0x20 + (nr))
+#define ASB100_REG_IN_MAX(nr) (0x2b + (nr * 2))
+#define ASB100_REG_IN_MIN(nr) (0x2c + (nr * 2))
+
+/* FAN IN registers 1-3 */
+#define ASB100_REG_FAN(nr) (0x28 + (nr))
+#define ASB100_REG_FAN_MIN(nr) (0x3b + (nr))
+
+/* TEMPERATURE registers 1-4 */
+static const u16 asb100_reg_temp[] = {0, 0x27, 0x150, 0x250, 0x17};
+static const u16 asb100_reg_temp_max[] = {0, 0x39, 0x155, 0x255, 0x18};
+static const u16 asb100_reg_temp_hyst[] = {0, 0x3a, 0x153, 0x253, 0x19};
+
+#define ASB100_REG_TEMP(nr) (asb100_reg_temp[nr])
+#define ASB100_REG_TEMP_MAX(nr) (asb100_reg_temp_max[nr])
+#define ASB100_REG_TEMP_HYST(nr) (asb100_reg_temp_hyst[nr])
+
+#define ASB100_REG_TEMP2_CONFIG 0x0152
+#define ASB100_REG_TEMP3_CONFIG 0x0252
+
+
+#define ASB100_REG_CONFIG 0x40
+#define ASB100_REG_ALARM1 0x41
+#define ASB100_REG_ALARM2 0x42
+#define ASB100_REG_SMIM1 0x43
+#define ASB100_REG_SMIM2 0x44
+#define ASB100_REG_VID_FANDIV 0x47
+#define ASB100_REG_I2C_ADDR 0x48
+#define ASB100_REG_CHIPID 0x49
+#define ASB100_REG_I2C_SUBADDR 0x4a
+#define ASB100_REG_PIN 0x4b
+#define ASB100_REG_IRQ 0x4c
+#define ASB100_REG_BANK 0x4e
+#define ASB100_REG_CHIPMAN 0x4f
+
+#define ASB100_REG_WCHIPID 0x58
+
+/* bit 7 -> enable, bits 0-3 -> duty cycle */
+#define ASB100_REG_PWM1 0x59
+
+/* CONVERSIONS
+ Rounding and limit checking is only done on the TO_REG variants. */
+
+/* These constants are a guess, consistent w/ w83781d */
+#define ASB100_IN_MIN ( 0)
+#define ASB100_IN_MAX (4080)
+
+/* IN: 1/1000 V (0V to 4.08V)
+ REG: 16mV/bit */
+static u8 IN_TO_REG(unsigned val)
+{
+ unsigned nval = SENSORS_LIMIT(val, ASB100_IN_MIN, ASB100_IN_MAX);
+ return (nval + 8) / 16;
+}
+
+static unsigned IN_FROM_REG(u8 reg)
+{
+ return reg * 16;
+}
+
+static u8 FAN_TO_REG(long rpm, int div)
+{
+ if (rpm == -1)
+ return 0;
+ if (rpm == 0)
+ return 255;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+static int FAN_FROM_REG(u8 val, int div)
+{
+ return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+}
+
+/* These constants are a guess, consistent w/ w83781d */
+#define ASB100_TEMP_MIN (-128000)
+#define ASB100_TEMP_MAX ( 127000)
+
+/* TEMP: 0.001C/bit (-128C to +127C)
+ REG: 1C/bit, two's complement */
+static u8 TEMP_TO_REG(int temp)
+{
+ int ntemp = SENSORS_LIMIT(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX);
+ ntemp += (ntemp<0 ? -500 : 500);
+ return (u8)(ntemp / 1000);
+}
+
+static int TEMP_FROM_REG(u8 reg)
+{
+ return (s8)reg * 1000;
+}
+
+/* PWM: 0 - 255 per sensors documentation
+ REG: (6.25% duty cycle per bit) */
+static u8 ASB100_PWM_TO_REG(int pwm)
+{
+ pwm = SENSORS_LIMIT(pwm, 0, 255);
+ return (u8)(pwm / 16);
+}
+
+static int ASB100_PWM_FROM_REG(u8 reg)
+{
+ return reg * 16;
+}
+
+#define ALARMS_FROM_REG(val) (val)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+/* FAN DIV: 1, 2, 4, or 8 (defaults to 2)
+ REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */
+static u8 DIV_TO_REG(long val)
+{
+ return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1;
+}
+
+/* For each registered client, we need to keep some data in memory. That
+ data is pointed to by client->data. The structure itself is
+ dynamically allocated, at the same time the client itself is allocated. */
+struct asb100_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ enum chips type;
+
+ struct semaphore update_lock;
+ unsigned long last_updated; /* In jiffies */
+
+ /* array of 2 pointers to subclients */
+ struct i2c_client *lm75[2];
+
+ char valid; /* !=0 if following fields are valid */
+ u8 in[7]; /* Register value */
+ u8 in_max[7]; /* Register value */
+ u8 in_min[7]; /* Register value */
+ u8 fan[3]; /* Register value */
+ u8 fan_min[3]; /* Register value */
+ u16 temp[4]; /* Register value (0 and 3 are u8 only) */
+ u16 temp_max[4]; /* Register value (0 and 3 are u8 only) */
+ u16 temp_hyst[4]; /* Register value (0 and 3 are u8 only) */
+ u8 fan_div[3]; /* Register encoding, right justified */
+ u8 pwm; /* Register encoding */
+ u8 vid; /* Register encoding, combined */
+ u32 alarms; /* Register encoding, combined */
+ u8 vrm;
+};
+
+static int asb100_read_value(struct i2c_client *client, u16 reg);
+static void asb100_write_value(struct i2c_client *client, u16 reg, u16 val);
+
+static int asb100_attach_adapter(struct i2c_adapter *adapter);
+static int asb100_detect(struct i2c_adapter *adapter, int address, int kind);
+static int asb100_detach_client(struct i2c_client *client);
+static struct asb100_data *asb100_update_device(struct device *dev);
+static void asb100_init_client(struct i2c_client *client);
+
+static struct i2c_driver asb100_driver = {
+ .owner = THIS_MODULE,
+ .name = "asb100",
+ .id = I2C_DRIVERID_ASB100,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = asb100_attach_adapter,
+ .detach_client = asb100_detach_client,
+};
+
+/* 7 Voltages */
+#define show_in_reg(reg) \
+static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+{ \
+ struct asb100_data *data = asb100_update_device(dev); \
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \
+}
+
+show_in_reg(in)
+show_in_reg(in_min)
+show_in_reg(in_max)
+
+#define set_in_reg(REG, reg) \
+static ssize_t set_in_##reg(struct device *dev, const char *buf, \
+ size_t count, int nr) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct asb100_data *data = i2c_get_clientdata(client); \
+ unsigned long val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_##reg[nr] = IN_TO_REG(val); \
+ asb100_write_value(client, ASB100_REG_IN_##REG(nr), \
+ data->in_##reg[nr]); \
+ up(&data->update_lock); \
+ return count; \
+}
+
+set_in_reg(MIN, min)
+set_in_reg(MAX, max)
+
+#define sysfs_in(offset) \
+static ssize_t \
+ show_in##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+ show_in##offset, NULL); \
+static ssize_t \
+ show_in##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_in_min(dev, buf, offset); \
+} \
+static ssize_t \
+ show_in##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_in_max(dev, buf, offset); \
+} \
+static ssize_t set_in##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_min(dev, buf, count, offset); \
+} \
+static ssize_t set_in##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_max(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in##offset##_max, set_in##offset##_max);
+
+sysfs_in(0);
+sysfs_in(1);
+sysfs_in(2);
+sysfs_in(3);
+sysfs_in(4);
+sysfs_in(5);
+sysfs_in(6);
+
+#define device_create_file_in(client, offset) do { \
+ device_create_file(&client->dev, &dev_attr_in##offset##_input); \
+ device_create_file(&client->dev, &dev_attr_in##offset##_min); \
+ device_create_file(&client->dev, &dev_attr_in##offset##_max); \
+} while (0)
+
+/* 3 Fans */
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+ DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct asb100_data *data = i2c_get_clientdata(client);
+ u32 val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+ asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan divisor. This follows the principle of
+ least suprise; the user doesn't expect the fan minimum to change just
+ because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct asb100_data *data = i2c_get_clientdata(client);
+ unsigned long min;
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+ int reg;
+
+ down(&data->update_lock);
+
+ min = FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+ data->fan_div[nr] = DIV_TO_REG(val);
+
+ switch(nr) {
+ case 0: /* fan 1 */
+ reg = asb100_read_value(client, ASB100_REG_VID_FANDIV);
+ reg = (reg & 0xcf) | (data->fan_div[0] << 4);
+ asb100_write_value(client, ASB100_REG_VID_FANDIV, reg);
+ break;
+
+ case 1: /* fan 2 */
+ reg = asb100_read_value(client, ASB100_REG_VID_FANDIV);
+ reg = (reg & 0x3f) | (data->fan_div[1] << 6);
+ asb100_write_value(client, ASB100_REG_VID_FANDIV, reg);
+ break;
+
+ case 2: /* fan 3 */
+ reg = asb100_read_value(client, ASB100_REG_PIN);
+ reg = (reg & 0x3f) | (data->fan_div[2] << 6);
+ asb100_write_value(client, ASB100_REG_PIN, reg);
+ break;
+ }
+
+ data->fan_min[nr] =
+ FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+ asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]);
+
+ up(&data->update_lock);
+
+ return count;
+}
+
+#define sysfs_fan(offset) \
+static ssize_t show_fan##offset(struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan##offset##_min(struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan##offset##_div(struct device *dev, char *buf) \
+{ \
+ return show_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_fan##offset##_div(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
+ show_fan##offset, NULL); \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan##offset##_min, set_fan##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ show_fan##offset##_div, set_fan##offset##_div);
+
+sysfs_fan(1);
+sysfs_fan(2);
+sysfs_fan(3);
+
+#define device_create_file_fan(client, offset) do { \
+ device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
+ device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
+ device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
+} while (0)
+
+/* 4 Temp. Sensors */
+static int sprintf_temp_from_reg(u16 reg, char *buf, int nr)
+{
+ int ret = 0;
+
+ switch (nr) {
+ case 1: case 2:
+ ret = sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(reg));
+ break;
+ case 0: case 3: default:
+ ret = sprintf(buf, "%d\n", TEMP_FROM_REG(reg));
+ break;
+ }
+ return ret;
+}
+
+#define show_temp_reg(reg) \
+static ssize_t show_##reg(struct device *dev, char *buf, int nr) \
+{ \
+ struct asb100_data *data = asb100_update_device(dev); \
+ return sprintf_temp_from_reg(data->reg[nr], buf, nr); \
+}
+
+show_temp_reg(temp);
+show_temp_reg(temp_max);
+show_temp_reg(temp_hyst);
+
+#define set_temp_reg(REG, reg) \
+static ssize_t set_##reg(struct device *dev, const char *buf, \
+ size_t count, int nr) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct asb100_data *data = i2c_get_clientdata(client); \
+ unsigned long val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ switch (nr) { \
+ case 1: case 2: \
+ data->reg[nr] = LM75_TEMP_TO_REG(val); \
+ break; \
+ case 0: case 3: default: \
+ data->reg[nr] = TEMP_TO_REG(val); \
+ break; \
+ } \
+ asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \
+ data->reg[nr]); \
+ up(&data->update_lock); \
+ return count; \
+}
+
+set_temp_reg(MAX, temp_max);
+set_temp_reg(HYST, temp_hyst);
+
+#define sysfs_temp(num) \
+static ssize_t show_temp##num(struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, num-1); \
+} \
+static DEVICE_ATTR(temp##num##_input, S_IRUGO, show_temp##num, NULL); \
+static ssize_t show_temp_max##num(struct device *dev, char *buf) \
+{ \
+ return show_temp_max(dev, buf, num-1); \
+} \
+static ssize_t set_temp_max##num(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ return set_temp_max(dev, buf, count, num-1); \
+} \
+static DEVICE_ATTR(temp##num##_max, S_IRUGO | S_IWUSR, \
+ show_temp_max##num, set_temp_max##num); \
+static ssize_t show_temp_hyst##num(struct device *dev, char *buf) \
+{ \
+ return show_temp_hyst(dev, buf, num-1); \
+} \
+static ssize_t set_temp_hyst##num(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ return set_temp_hyst(dev, buf, count, num-1); \
+} \
+static DEVICE_ATTR(temp##num##_max_hyst, S_IRUGO | S_IWUSR, \
+ show_temp_hyst##num, set_temp_hyst##num);
+
+sysfs_temp(1);
+sysfs_temp(2);
+sysfs_temp(3);
+sysfs_temp(4);
+
+/* VID */
+#define device_create_file_temp(client, num) do { \
+ device_create_file(&client->dev, &dev_attr_temp##num##_input); \
+ device_create_file(&client->dev, &dev_attr_temp##num##_max); \
+ device_create_file(&client->dev, &dev_attr_temp##num##_max_hyst); \
+} while (0)
+
+static ssize_t show_vid(struct device *dev, char *buf)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+#define device_create_file_vid(client) \
+device_create_file(&client->dev, &dev_attr_cpu0_vid)
+
+/* VRM */
+static ssize_t show_vrm(struct device *dev, char *buf)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t set_vrm(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct asb100_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+ data->vrm = val;
+ return count;
+}
+
+/* Alarms */
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+#define device_create_file_vrm(client) \
+device_create_file(&client->dev, &dev_attr_vrm);
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->alarms));
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+#define device_create_file_alarms(client) \
+device_create_file(&client->dev, &dev_attr_alarms)
+
+/* 1 PWM */
+static ssize_t show_pwm1(struct device *dev, char *buf)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", ASB100_PWM_FROM_REG(data->pwm & 0x0f));
+}
+
+static ssize_t set_pwm1(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct asb100_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->pwm &= 0x80; /* keep the enable bit */
+ data->pwm |= (0x0f & ASB100_PWM_TO_REG(val));
+ asb100_write_value(client, ASB100_REG_PWM1, data->pwm);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_pwm_enable1(struct device *dev, char *buf)
+{
+ struct asb100_data *data = asb100_update_device(dev);
+ return sprintf(buf, "%d\n", (data->pwm & 0x80) ? 1 : 0);
+}
+
+static ssize_t set_pwm_enable1(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct asb100_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->pwm &= 0x0f; /* keep the duty cycle bits */
+ data->pwm |= (val ? 0x80 : 0x00);
+ asb100_write_value(client, ASB100_REG_PWM1, data->pwm);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm1, set_pwm1);
+static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
+ show_pwm_enable1, set_pwm_enable1);
+#define device_create_file_pwm1(client) do { \
+ device_create_file(&new_client->dev, &dev_attr_pwm1); \
+ device_create_file(&new_client->dev, &dev_attr_pwm1_enable); \
+} while (0)
+
+/* This function is called when:
+ asb100_driver is inserted (when this module is loaded), for each
+ available adapter
+ when a new adapter is inserted (and asb100_driver is still present)
+ */
+static int asb100_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, asb100_detect);
+}
+
+static int asb100_detect_subclients(struct i2c_adapter *adapter, int address,
+ int kind, struct i2c_client *new_client)
+{
+ int i, id, err;
+ struct asb100_data *data = i2c_get_clientdata(new_client);
+
+ data->lm75[0] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (!(data->lm75[0])) {
+ err = -ENOMEM;
+ goto ERROR_SC_0;
+ }
+ memset(data->lm75[0], 0x00, sizeof(struct i2c_client));
+
+ data->lm75[1] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (!(data->lm75[1])) {
+ err = -ENOMEM;
+ goto ERROR_SC_1;
+ }
+ memset(data->lm75[1], 0x00, sizeof(struct i2c_client));
+
+ id = i2c_adapter_id(adapter);
+
+ if (force_subclients[0] == id && force_subclients[1] == address) {
+ for (i = 2; i <= 3; i++) {
+ if (force_subclients[i] < 0x48 ||
+ force_subclients[i] > 0x4f) {
+ dev_err(&new_client->dev, "invalid subclient "
+ "address %d; must be 0x48-0x4f\n",
+ force_subclients[i]);
+ err = -ENODEV;
+ goto ERROR_SC_2;
+ }
+ }
+ asb100_write_value(new_client, ASB100_REG_I2C_SUBADDR,
+ (force_subclients[2] & 0x07) |
+ ((force_subclients[3] & 0x07) <<4));
+ data->lm75[0]->addr = force_subclients[2];
+ data->lm75[1]->addr = force_subclients[3];
+ } else {
+ int val = asb100_read_value(new_client, ASB100_REG_I2C_SUBADDR);
+ data->lm75[0]->addr = 0x48 + (val & 0x07);
+ data->lm75[1]->addr = 0x48 + ((val >> 4) & 0x07);
+ }
+
+ if(data->lm75[0]->addr == data->lm75[1]->addr) {
+ dev_err(&new_client->dev, "duplicate addresses 0x%x "
+ "for subclients\n", data->lm75[0]->addr);
+ err = -ENODEV;
+ goto ERROR_SC_2;
+ }
+
+ for (i = 0; i <= 1; i++) {
+ i2c_set_clientdata(data->lm75[i], NULL);
+ data->lm75[i]->adapter = adapter;
+ data->lm75[i]->driver = &asb100_driver;
+ data->lm75[i]->flags = 0;
+ strlcpy(data->lm75[i]->name, "asb100 subclient", I2C_NAME_SIZE);
+ }
+
+ if ((err = i2c_attach_client(data->lm75[0]))) {
+ dev_err(&new_client->dev, "subclient %d registration "
+ "at address 0x%x failed.\n", i, data->lm75[0]->addr);
+ goto ERROR_SC_2;
+ }
+
+ if ((err = i2c_attach_client(data->lm75[1]))) {
+ dev_err(&new_client->dev, "subclient %d registration "
+ "at address 0x%x failed.\n", i, data->lm75[1]->addr);
+ goto ERROR_SC_3;
+ }
+
+ return 0;
+
+/* Undo inits in case of errors */
+ERROR_SC_3:
+ i2c_detach_client(data->lm75[0]);
+ERROR_SC_2:
+ kfree(data->lm75[1]);
+ERROR_SC_1:
+ kfree(data->lm75[0]);
+ERROR_SC_0:
+ return err;
+}
+
+static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int err;
+ struct i2c_client *new_client;
+ struct asb100_data *data;
+
+ /* asb100 is SMBus only */
+ if (i2c_is_isa_adapter(adapter)) {
+ pr_debug("asb100.o: detect failed, "
+ "cannot attach to legacy adapter!\n");
+ err = -ENODEV;
+ goto ERROR0;
+ }
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+ pr_debug("asb100.o: detect failed, "
+ "smbus byte data not supported!\n");
+ err = -ENODEV;
+ goto ERROR0;
+ }
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access asb100_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct asb100_data), GFP_KERNEL))) {
+ pr_debug("asb100.o: detect failed, kmalloc failed!\n");
+ err = -ENOMEM;
+ goto ERROR0;
+ }
+ memset(data, 0, sizeof(struct asb100_data));
+
+ new_client = &data->client;
+ init_MUTEX(&data->lock);
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &asb100_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+
+ /* The chip may be stuck in some other bank than bank 0. This may
+ make reading other information impossible. Specify a force=... or
+ force_*=... parameter, and the chip will be reset to the right
+ bank. */
+ if (kind < 0) {
+
+ int val1 = asb100_read_value(new_client, ASB100_REG_BANK);
+ int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN);
+
+ /* If we're in bank 0 */
+ if ( (!(val1 & 0x07)) &&
+ /* Check for ASB100 ID (low byte) */
+ ( ((!(val1 & 0x80)) && (val2 != 0x94)) ||
+ /* Check for ASB100 ID (high byte ) */
+ ((val1 & 0x80) && (val2 != 0x06)) ) ) {
+ pr_debug("asb100.o: detect failed, "
+ "bad chip id 0x%02x!\n", val2);
+ err = -ENODEV;
+ goto ERROR1;
+ }
+
+ } /* kind < 0 */
+
+ /* We have either had a force parameter, or we have already detected
+ Winbond. Put it now into bank 0 and Vendor ID High Byte */
+ asb100_write_value(new_client, ASB100_REG_BANK,
+ (asb100_read_value(new_client, ASB100_REG_BANK) & 0x78) | 0x80);
+
+ /* Determine the chip type. */
+ if (kind <= 0) {
+ int val1 = asb100_read_value(new_client, ASB100_REG_WCHIPID);
+ int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN);
+
+ if ((val1 == 0x31) && (val2 == 0x06))
+ kind = asb100;
+ else {
+ if (kind == 0)
+ dev_warn(&new_client->dev, "ignoring "
+ "'force' parameter for unknown chip "
+ "at adapter %d, address 0x%02x.\n",
+ i2c_adapter_id(adapter), address);
+ err = -ENODEV;
+ goto ERROR1;
+ }
+ }
+
+ /* Fill in remaining client fields and put it into the global list */
+ strlcpy(new_client->name, "asb100", I2C_NAME_SIZE);
+ data->type = kind;
+
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR1;
+
+ /* Attach secondary lm75 clients */
+ if ((err = asb100_detect_subclients(adapter, address, kind,
+ new_client)))
+ goto ERROR2;
+
+ /* Initialize the chip */
+ asb100_init_client(new_client);
+
+ /* A few vars need to be filled upon startup */
+ data->fan_min[0] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(0));
+ data->fan_min[1] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(1));
+ data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2));
+
+ /* Register sysfs hooks */
+ device_create_file_in(new_client, 0);
+ device_create_file_in(new_client, 1);
+ device_create_file_in(new_client, 2);
+ device_create_file_in(new_client, 3);
+ device_create_file_in(new_client, 4);
+ device_create_file_in(new_client, 5);
+ device_create_file_in(new_client, 6);
+
+ device_create_file_fan(new_client, 1);
+ device_create_file_fan(new_client, 2);
+ device_create_file_fan(new_client, 3);
+
+ device_create_file_temp(new_client, 1);
+ device_create_file_temp(new_client, 2);
+ device_create_file_temp(new_client, 3);
+ device_create_file_temp(new_client, 4);
+
+ device_create_file_vid(new_client);
+ device_create_file_vrm(new_client);
+
+ device_create_file_alarms(new_client);
+
+ device_create_file_pwm1(new_client);
+
+ return 0;
+
+ERROR2:
+ i2c_detach_client(new_client);
+ERROR1:
+ kfree(data);
+ERROR0:
+ return err;
+}
+
+static int asb100_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "client deregistration failed; "
+ "client not detached.\n");
+ return err;
+ }
+
+ if (i2c_get_clientdata(client)==NULL) {
+ /* subclients */
+ kfree(client);
+ } else {
+ /* main client */
+ kfree(i2c_get_clientdata(client));
+ }
+
+ return 0;
+}
+
+/* The SMBus locks itself, usually, but nothing may access the chip between
+ bank switches. */
+static int asb100_read_value(struct i2c_client *client, u16 reg)
+{
+ struct asb100_data *data = i2c_get_clientdata(client);
+ struct i2c_client *cl;
+ int res, bank;
+
+ down(&data->lock);
+
+ bank = (reg >> 8) & 0x0f;
+ if (bank > 2)
+ /* switch banks */
+ i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank);
+
+ if (bank == 0 || bank > 2) {
+ res = i2c_smbus_read_byte_data(client, reg & 0xff);
+ } else {
+ /* switch to subclient */
+ cl = data->lm75[bank - 1];
+
+ /* convert from ISA to LM75 I2C addresses */
+ switch (reg & 0xff) {
+ case 0x50: /* TEMP */
+ res = swab16(i2c_smbus_read_word_data (cl, 0));
+ break;
+ case 0x52: /* CONFIG */
+ res = i2c_smbus_read_byte_data(cl, 1);
+ break;
+ case 0x53: /* HYST */
+ res = swab16(i2c_smbus_read_word_data (cl, 2));
+ break;
+ case 0x55: /* MAX */
+ default:
+ res = swab16(i2c_smbus_read_word_data (cl, 3));
+ break;
+ }
+ }
+
+ if (bank > 2)
+ i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0);
+
+ up(&data->lock);
+
+ return res;
+}
+
+static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value)
+{
+ struct asb100_data *data = i2c_get_clientdata(client);
+ struct i2c_client *cl;
+ int bank;
+
+ down(&data->lock);
+
+ bank = (reg >> 8) & 0x0f;
+ if (bank > 2)
+ /* switch banks */
+ i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank);
+
+ if (bank == 0 || bank > 2) {
+ i2c_smbus_write_byte_data(client, reg & 0xff, value & 0xff);
+ } else {
+ /* switch to subclient */
+ cl = data->lm75[bank - 1];
+
+ /* convert from ISA to LM75 I2C addresses */
+ switch (reg & 0xff) {
+ case 0x52: /* CONFIG */
+ i2c_smbus_write_byte_data(cl, 1, value & 0xff);
+ break;
+ case 0x53: /* HYST */
+ i2c_smbus_write_word_data(cl, 2, swab16(value));
+ break;
+ case 0x55: /* MAX */
+ i2c_smbus_write_word_data(cl, 3, swab16(value));
+ break;
+ }
+ }
+
+ if (bank > 2)
+ i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0);
+
+ up(&data->lock);
+}
+
+static void asb100_init_client(struct i2c_client *client)
+{
+ struct asb100_data *data = i2c_get_clientdata(client);
+ int vid = 0;
+
+ vid = asb100_read_value(client, ASB100_REG_VID_FANDIV) & 0x0f;
+ vid |= (asb100_read_value(client, ASB100_REG_CHIPID) & 0x01) << 4;
+ data->vrm = i2c_which_vrm();
+ vid = vid_from_reg(vid, data->vrm);
+
+ /* Start monitoring */
+ asb100_write_value(client, ASB100_REG_CONFIG,
+ (asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01);
+}
+
+static struct asb100_data *asb100_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct asb100_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+
+ dev_dbg(&client->dev, "starting device update...\n");
+
+ /* 7 voltage inputs */
+ for (i = 0; i < 7; i++) {
+ data->in[i] = asb100_read_value(client,
+ ASB100_REG_IN(i));
+ data->in_min[i] = asb100_read_value(client,
+ ASB100_REG_IN_MIN(i));
+ data->in_max[i] = asb100_read_value(client,
+ ASB100_REG_IN_MAX(i));
+ }
+
+ /* 3 fan inputs */
+ for (i = 0; i < 3; i++) {
+ data->fan[i] = asb100_read_value(client,
+ ASB100_REG_FAN(i));
+ data->fan_min[i] = asb100_read_value(client,
+ ASB100_REG_FAN_MIN(i));
+ }
+
+ /* 4 temperature inputs */
+ for (i = 1; i <= 4; i++) {
+ data->temp[i-1] = asb100_read_value(client,
+ ASB100_REG_TEMP(i));
+ data->temp_max[i-1] = asb100_read_value(client,
+ ASB100_REG_TEMP_MAX(i));
+ data->temp_hyst[i-1] = asb100_read_value(client,
+ ASB100_REG_TEMP_HYST(i));
+ }
+
+ /* VID and fan divisors */
+ i = asb100_read_value(client, ASB100_REG_VID_FANDIV);
+ data->vid = i & 0x0f;
+ data->vid |= (asb100_read_value(client,
+ ASB100_REG_CHIPID) & 0x01) << 4;
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = (i >> 6) & 0x03;
+ data->fan_div[2] = (asb100_read_value(client,
+ ASB100_REG_PIN) >> 6) & 0x03;
+
+ /* PWM */
+ data->pwm = asb100_read_value(client, ASB100_REG_PWM1);
+
+ /* alarms */
+ data->alarms = asb100_read_value(client, ASB100_REG_ALARM1) +
+ (asb100_read_value(client, ASB100_REG_ALARM2) << 8);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+
+ dev_dbg(&client->dev, "... device update complete\n");
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init asb100_init(void)
+{
+ return i2c_add_driver(&asb100_driver);
+}
+
+static void __exit asb100_exit(void)
+{
+ i2c_del_driver(&asb100_driver);
+}
+
+MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");
+MODULE_DESCRIPTION("ASB100 Bach driver");
+MODULE_LICENSE("GPL");
+
+module_init(asb100_init);
+module_exit(asb100_exit);
+
diff --git a/drivers/i2c/chips/ds1337.c b/drivers/i2c/chips/ds1337.c
new file mode 100644
index 0000000..07f16c3
--- /dev/null
+++ b/drivers/i2c/chips/ds1337.c
@@ -0,0 +1,402 @@
+/*
+ * linux/drivers/i2c/chips/ds1337.c
+ *
+ * Copyright (C) 2005 James Chapman <jchapman@katalix.com>
+ *
+ * based on linux/drivers/acron/char/pcf8583.c
+ * Copyright (C) 2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for Dallas Semiconductor DS1337 real time clock chip
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/string.h>
+#include <linux/rtc.h> /* get the user-level API */
+#include <linux/bcd.h>
+#include <linux/list.h>
+
+/* Device registers */
+#define DS1337_REG_HOUR 2
+#define DS1337_REG_DAY 3
+#define DS1337_REG_DATE 4
+#define DS1337_REG_MONTH 5
+#define DS1337_REG_CONTROL 14
+#define DS1337_REG_STATUS 15
+
+/* FIXME - how do we export these interface constants? */
+#define DS1337_GET_DATE 0
+#define DS1337_SET_DATE 1
+
+/*
+ * Functions declaration
+ */
+static unsigned short normal_i2c[] = { 0x68, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+SENSORS_INSMOD_1(ds1337);
+
+static int ds1337_attach_adapter(struct i2c_adapter *adapter);
+static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind);
+static void ds1337_init_client(struct i2c_client *client);
+static int ds1337_detach_client(struct i2c_client *client);
+static int ds1337_command(struct i2c_client *client, unsigned int cmd,
+ void *arg);
+
+/*
+ * Driver data (common to all clients)
+ */
+static struct i2c_driver ds1337_driver = {
+ .owner = THIS_MODULE,
+ .name = "ds1337",
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = ds1337_attach_adapter,
+ .detach_client = ds1337_detach_client,
+ .command = ds1337_command,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+struct ds1337_data {
+ struct i2c_client client;
+ struct list_head list;
+ int id;
+};
+
+/*
+ * Internal variables
+ */
+static int ds1337_id;
+static LIST_HEAD(ds1337_clients);
+
+static inline int ds1337_read(struct i2c_client *client, u8 reg, u8 *value)
+{
+ s32 tmp = i2c_smbus_read_byte_data(client, reg);
+
+ if (tmp < 0)
+ return -EIO;
+
+ *value = tmp;
+
+ return 0;
+}
+
+/*
+ * Chip access functions
+ */
+static int ds1337_get_datetime(struct i2c_client *client, struct rtc_time *dt)
+{
+ struct ds1337_data *data = i2c_get_clientdata(client);
+ int result;
+ u8 buf[7];
+ u8 val;
+ struct i2c_msg msg[2];
+ u8 offs = 0;
+
+ if (!dt) {
+ dev_dbg(&client->adapter->dev, "%s: EINVAL: dt=NULL\n",
+ __FUNCTION__);
+
+ return -EINVAL;
+ }
+
+ msg[0].addr = client->addr;
+ msg[0].flags = 0;
+ msg[0].len = 1;
+ msg[0].buf = &offs;
+
+ msg[1].addr = client->addr;
+ msg[1].flags = I2C_M_RD;
+ msg[1].len = sizeof(buf);
+ msg[1].buf = &buf[0];
+
+ result = client->adapter->algo->master_xfer(client->adapter,
+ &msg[0], 2);
+
+ dev_dbg(&client->adapter->dev,
+ "%s: [%d] %02x %02x %02x %02x %02x %02x %02x\n",
+ __FUNCTION__, result, buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6]);
+
+ if (result >= 0) {
+ dt->tm_sec = BCD_TO_BIN(buf[0]);
+ dt->tm_min = BCD_TO_BIN(buf[1]);
+ val = buf[2] & 0x3f;
+ dt->tm_hour = BCD_TO_BIN(val);
+ dt->tm_wday = BCD_TO_BIN(buf[3]) - 1;
+ dt->tm_mday = BCD_TO_BIN(buf[4]);
+ val = buf[5] & 0x7f;
+ dt->tm_mon = BCD_TO_BIN(val);
+ dt->tm_year = 1900 + BCD_TO_BIN(buf[6]);
+ if (buf[5] & 0x80)
+ dt->tm_year += 100;
+
+ dev_dbg(&client->adapter->dev, "%s: secs=%d, mins=%d, "
+ "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+ __FUNCTION__, dt->tm_sec, dt->tm_min,
+ dt->tm_hour, dt->tm_mday,
+ dt->tm_mon, dt->tm_year, dt->tm_wday);
+ } else {
+ dev_err(&client->adapter->dev, "ds1337[%d]: error reading "
+ "data! %d\n", data->id, result);
+ result = -EIO;
+ }
+
+ return result;
+}
+
+static int ds1337_set_datetime(struct i2c_client *client, struct rtc_time *dt)
+{
+ struct ds1337_data *data = i2c_get_clientdata(client);
+ int result;
+ u8 buf[8];
+ u8 val;
+ struct i2c_msg msg[1];
+
+ if (!dt) {
+ dev_dbg(&client->adapter->dev, "%s: EINVAL: dt=NULL\n",
+ __FUNCTION__);
+
+ return -EINVAL;
+ }
+
+ dev_dbg(&client->adapter->dev, "%s: secs=%d, mins=%d, hours=%d, "
+ "mday=%d, mon=%d, year=%d, wday=%d\n", __FUNCTION__,
+ dt->tm_sec, dt->tm_min, dt->tm_hour,
+ dt->tm_mday, dt->tm_mon, dt->tm_year, dt->tm_wday);
+
+ buf[0] = 0; /* reg offset */
+ buf[1] = BIN_TO_BCD(dt->tm_sec);
+ buf[2] = BIN_TO_BCD(dt->tm_min);
+ buf[3] = BIN_TO_BCD(dt->tm_hour) | (1 << 6);
+ buf[4] = BIN_TO_BCD(dt->tm_wday) + 1;
+ buf[5] = BIN_TO_BCD(dt->tm_mday);
+ buf[6] = BIN_TO_BCD(dt->tm_mon);
+ if (dt->tm_year >= 2000) {
+ val = dt->tm_year - 2000;
+ buf[6] |= (1 << 7);
+ } else {
+ val = dt->tm_year - 1900;
+ }
+ buf[7] = BIN_TO_BCD(val);
+
+ msg[0].addr = client->addr;
+ msg[0].flags = 0;
+ msg[0].len = sizeof(buf);
+ msg[0].buf = &buf[0];
+
+ result = client->adapter->algo->master_xfer(client->adapter,
+ &msg[0], 1);
+ if (result < 0) {
+ dev_err(&client->adapter->dev, "ds1337[%d]: error "
+ "writing data! %d\n", data->id, result);
+ result = -EIO;
+ } else {
+ result = 0;
+ }
+
+ return result;
+}
+
+static int ds1337_command(struct i2c_client *client, unsigned int cmd,
+ void *arg)
+{
+ dev_dbg(&client->adapter->dev, "%s: cmd=%d\n", __FUNCTION__, cmd);
+
+ switch (cmd) {
+ case DS1337_GET_DATE:
+ return ds1337_get_datetime(client, arg);
+
+ case DS1337_SET_DATE:
+ return ds1337_set_datetime(client, arg);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * Public API for access to specific device. Useful for low-level
+ * RTC access from kernel code.
+ */
+int ds1337_do_command(int id, int cmd, void *arg)
+{
+ struct list_head *walk;
+ struct list_head *tmp;
+ struct ds1337_data *data;
+
+ list_for_each_safe(walk, tmp, &ds1337_clients) {
+ data = list_entry(walk, struct ds1337_data, list);
+ if (data->id == id)
+ return ds1337_command(&data->client, cmd, arg);
+ }
+
+ return -ENODEV;
+}
+
+static int ds1337_attach_adapter(struct i2c_adapter *adapter)
+{
+ return i2c_detect(adapter, &addr_data, ds1337_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct ds1337_data *data;
+ int err = 0;
+ const char *name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_I2C))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct ds1337_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct ds1337_data));
+ INIT_LIST_HEAD(&data->list);
+
+ /* The common I2C client data is placed right before the
+ * DS1337-specific data.
+ */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &ds1337_driver;
+ new_client->flags = 0;
+
+ /*
+ * Now we do the remaining detection. A negative kind means that
+ * the driver was loaded with no force parameter (default), so we
+ * must both detect and identify the chip. A zero kind means that
+ * the driver was loaded with the force parameter, the detection
+ * step shall be skipped. A positive kind means that the driver
+ * was loaded with the force parameter and a given kind of chip is
+ * requested, so both the detection and the identification steps
+ * are skipped.
+ *
+ * For detection, we read registers that are most likely to cause
+ * detection failure, i.e. those that have more bits with fixed
+ * or reserved values.
+ */
+
+ /* Default to an DS1337 if forced */
+ if (kind == 0)
+ kind = ds1337;
+
+ if (kind < 0) { /* detection and identification */
+ u8 data;
+
+ /* Check that status register bits 6-2 are zero */
+ if ((ds1337_read(new_client, DS1337_REG_STATUS, &data) < 0) ||
+ (data & 0x7c))
+ goto exit_free;
+
+ /* Check for a valid day register value */
+ if ((ds1337_read(new_client, DS1337_REG_DAY, &data) < 0) ||
+ (data == 0) || (data & 0xf8))
+ goto exit_free;
+
+ /* Check for a valid date register value */
+ if ((ds1337_read(new_client, DS1337_REG_DATE, &data) < 0) ||
+ (data == 0) || (data & 0xc0) || ((data & 0x0f) > 9) ||
+ (data >= 0x32))
+ goto exit_free;
+
+ /* Check for a valid month register value */
+ if ((ds1337_read(new_client, DS1337_REG_MONTH, &data) < 0) ||
+ (data == 0) || (data & 0x60) || ((data & 0x0f) > 9) ||
+ ((data >= 0x13) && (data <= 0x19)))
+ goto exit_free;
+
+ /* Check that control register bits 6-5 are zero */
+ if ((ds1337_read(new_client, DS1337_REG_CONTROL, &data) < 0) ||
+ (data & 0x60))
+ goto exit_free;
+
+ kind = ds1337;
+ }
+
+ if (kind == ds1337)
+ name = "ds1337";
+
+ /* We can fill in the remaining client fields */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the DS1337 chip */
+ ds1337_init_client(new_client);
+
+ /* Add client to local list */
+ data->id = ds1337_id++;
+ list_add(&data->list, &ds1337_clients);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static void ds1337_init_client(struct i2c_client *client)
+{
+ s32 val;
+
+ /* Ensure that device is set in 24-hour mode */
+ val = i2c_smbus_read_byte_data(client, DS1337_REG_HOUR);
+ if ((val >= 0) && (val & (1 << 6)) == 0)
+ i2c_smbus_write_byte_data(client, DS1337_REG_HOUR,
+ val | (1 << 6));
+}
+
+static int ds1337_detach_client(struct i2c_client *client)
+{
+ int err;
+ struct ds1337_data *data = i2c_get_clientdata(client);
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ list_del(&data->list);
+ kfree(data);
+ return 0;
+}
+
+static int __init ds1337_init(void)
+{
+ return i2c_add_driver(&ds1337_driver);
+}
+
+static void __exit ds1337_exit(void)
+{
+ i2c_del_driver(&ds1337_driver);
+}
+
+MODULE_AUTHOR("James Chapman <jchapman@katalix.com>");
+MODULE_DESCRIPTION("DS1337 RTC driver");
+MODULE_LICENSE("GPL");
+
+module_init(ds1337_init);
+module_exit(ds1337_exit);
diff --git a/drivers/i2c/chips/ds1621.c b/drivers/i2c/chips/ds1621.c
new file mode 100644
index 0000000..bb1fefb
--- /dev/null
+++ b/drivers/i2c/chips/ds1621.c
@@ -0,0 +1,341 @@
+/*
+ ds1621.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Christian W. Zuckschwerdt <zany@triq.net> 2000-11-23
+ based on lm75.c by Frodo Looijaard <frodol@dds.nl>
+ Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
+ the help of Jean Delvare <khali@linux-fr.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include "lm75.h"
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
+ 0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(ds1621);
+static int polarity = -1;
+module_param(polarity, int, 0);
+MODULE_PARM_DESC(polarity, "Output's polarity: 0 = active high, 1 = active low");
+
+/* Many DS1621 constants specified below */
+/* Config register used for detection */
+/* 7 6 5 4 3 2 1 0 */
+/* |Done|THF |TLF |NVB | X | X |POL |1SHOT| */
+#define DS1621_REG_CONFIG_NVB 0x10
+#define DS1621_REG_CONFIG_POLARITY 0x02
+#define DS1621_REG_CONFIG_1SHOT 0x01
+#define DS1621_REG_CONFIG_DONE 0x80
+
+/* The DS1621 registers */
+#define DS1621_REG_TEMP 0xAA /* word, RO */
+#define DS1621_REG_TEMP_MIN 0xA1 /* word, RW */
+#define DS1621_REG_TEMP_MAX 0xA2 /* word, RW */
+#define DS1621_REG_CONF 0xAC /* byte, RW */
+#define DS1621_COM_START 0xEE /* no data */
+#define DS1621_COM_STOP 0x22 /* no data */
+
+/* The DS1621 configuration register */
+#define DS1621_ALARM_TEMP_HIGH 0x40
+#define DS1621_ALARM_TEMP_LOW 0x20
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ variants. Note that you should be a bit careful with which arguments
+ these macros are called: arguments may be evaluated more than once.
+ Fixing this is just not worth it. */
+#define ALARMS_FROM_REG(val) ((val) & \
+ (DS1621_ALARM_TEMP_HIGH | DS1621_ALARM_TEMP_LOW))
+
+/* Each client has this additional data */
+struct ds1621_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u16 temp, temp_min, temp_max; /* Register values, word */
+ u8 conf; /* Register encoding, combined */
+};
+
+static int ds1621_attach_adapter(struct i2c_adapter *adapter);
+static int ds1621_detect(struct i2c_adapter *adapter, int address,
+ int kind);
+static void ds1621_init_client(struct i2c_client *client);
+static int ds1621_detach_client(struct i2c_client *client);
+static struct ds1621_data *ds1621_update_client(struct device *dev);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ds1621_driver = {
+ .owner = THIS_MODULE,
+ .name = "ds1621",
+ .id = I2C_DRIVERID_DS1621,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = ds1621_attach_adapter,
+ .detach_client = ds1621_detach_client,
+};
+
+/* All registers are word-sized, except for the configuration register.
+ DS1621 uses a high-byte first convention, which is exactly opposite to
+ the usual practice. */
+static int ds1621_read_value(struct i2c_client *client, u8 reg)
+{
+ if (reg == DS1621_REG_CONF)
+ return i2c_smbus_read_byte_data(client, reg);
+ else
+ return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+/* All registers are word-sized, except for the configuration register.
+ DS1621 uses a high-byte first convention, which is exactly opposite to
+ the usual practice. */
+static int ds1621_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+ if (reg == DS1621_REG_CONF)
+ return i2c_smbus_write_byte_data(client, reg, value);
+ else
+ return i2c_smbus_write_word_data(client, reg, swab16(value));
+}
+
+static void ds1621_init_client(struct i2c_client *client)
+{
+ int reg = ds1621_read_value(client, DS1621_REG_CONF);
+ /* switch to continous conversion mode */
+ reg &= ~ DS1621_REG_CONFIG_1SHOT;
+
+ /* setup output polarity */
+ if (polarity == 0)
+ reg &= ~DS1621_REG_CONFIG_POLARITY;
+ else if (polarity == 1)
+ reg |= DS1621_REG_CONFIG_POLARITY;
+
+ ds1621_write_value(client, DS1621_REG_CONF, reg);
+
+ /* start conversion */
+ i2c_smbus_write_byte(client, DS1621_COM_START);
+}
+
+#define show(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct ds1621_data *data = ds1621_update_client(dev); \
+ return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->value)); \
+}
+
+show(temp);
+show(temp_min);
+show(temp_max);
+
+#define set_temp(suffix, value, reg) \
+static ssize_t set_temp_##suffix(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct ds1621_data *data = ds1621_update_client(dev); \
+ u16 val = LM75_TEMP_TO_REG(simple_strtoul(buf, NULL, 10)); \
+ \
+ down(&data->update_lock); \
+ data->value = val; \
+ ds1621_write_value(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+
+set_temp(min, temp_min, DS1621_REG_TEMP_MIN);
+set_temp(max, temp_max, DS1621_REG_TEMP_MAX);
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct ds1621_data *data = ds1621_update_client(dev);
+ return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->conf));
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR(temp1_input, S_IRUGO , show_temp, NULL);
+static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO , show_temp_min, set_temp_min);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, set_temp_max);
+
+
+static int ds1621_attach_adapter(struct i2c_adapter *adapter)
+{
+ return i2c_detect(adapter, &addr_data, ds1621_detect);
+}
+
+/* This function is called by i2c_detect */
+int ds1621_detect(struct i2c_adapter *adapter, int address,
+ int kind)
+{
+ int conf, temp;
+ struct i2c_client *new_client;
+ struct ds1621_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
+ | I2C_FUNC_SMBUS_WORD_DATA
+ | I2C_FUNC_SMBUS_WRITE_BYTE))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access ds1621_{read,write}_value. */
+ if (!(data = kmalloc(sizeof(struct ds1621_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct ds1621_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &ds1621_driver;
+ new_client->flags = 0;
+
+
+ /* Now, we do the remaining detection. It is lousy. */
+ if (kind < 0) {
+ /* The NVB bit should be low if no EEPROM write has been
+ requested during the latest 10ms, which is highly
+ improbable in our case. */
+ conf = ds1621_read_value(new_client, DS1621_REG_CONF);
+ if (conf & DS1621_REG_CONFIG_NVB)
+ goto exit_free;
+ /* The 7 lowest bits of a temperature should always be 0. */
+ temp = ds1621_read_value(new_client, DS1621_REG_TEMP);
+ if (temp & 0x007f)
+ goto exit_free;
+ temp = ds1621_read_value(new_client, DS1621_REG_TEMP_MIN);
+ if (temp & 0x007f)
+ goto exit_free;
+ temp = ds1621_read_value(new_client, DS1621_REG_TEMP_MAX);
+ if (temp & 0x007f)
+ goto exit_free;
+ }
+
+ /* Determine the chip type - only one kind supported! */
+ if (kind <= 0)
+ kind = ds1621;
+
+ /* Fill in remaining client fields and put it into the global list */
+ strlcpy(new_client->name, "ds1621", I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the DS1621 chip */
+ ds1621_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+
+ return 0;
+
+/* OK, this is not exactly good programming practice, usually. But it is
+ very code-efficient in this case. */
+ exit_free:
+ kfree(data);
+ exit:
+ return err;
+}
+
+static int ds1621_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+
+static struct ds1621_data *ds1621_update_client(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct ds1621_data *data = i2c_get_clientdata(client);
+ u8 new_conf;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+
+ dev_dbg(&client->dev, "Starting ds1621 update\n");
+
+ data->conf = ds1621_read_value(client, DS1621_REG_CONF);
+
+ data->temp = ds1621_read_value(client, DS1621_REG_TEMP);
+
+ data->temp_min = ds1621_read_value(client,
+ DS1621_REG_TEMP_MIN);
+ data->temp_max = ds1621_read_value(client,
+ DS1621_REG_TEMP_MAX);
+
+ /* reset alarms if neccessary */
+ new_conf = data->conf;
+ if (data->temp < data->temp_min)
+ new_conf &= ~DS1621_ALARM_TEMP_LOW;
+ if (data->temp > data->temp_max)
+ new_conf &= ~DS1621_ALARM_TEMP_HIGH;
+ if (data->conf != new_conf)
+ ds1621_write_value(client, DS1621_REG_CONF,
+ new_conf);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init ds1621_init(void)
+{
+ return i2c_add_driver(&ds1621_driver);
+}
+
+static void __exit ds1621_exit(void)
+{
+ i2c_del_driver(&ds1621_driver);
+}
+
+
+MODULE_AUTHOR("Christian W. Zuckschwerdt <zany@triq.net>");
+MODULE_DESCRIPTION("DS1621 driver");
+MODULE_LICENSE("GPL");
+
+module_init(ds1621_init);
+module_exit(ds1621_exit);
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
new file mode 100644
index 0000000..cbdfa2d
--- /dev/null
+++ b/drivers/i2c/chips/eeprom.c
@@ -0,0 +1,264 @@
+/*
+ eeprom.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
+ Philip Edelbrock <phil@netroedge.com>
+ Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
+ Copyright (C) 2003 IBM Corp.
+
+ 2004-01-16 Jean Delvare <khali@linux-fr.org>
+ Divide the eeprom in 32-byte (arbitrary) slices. This significantly
+ speeds sensors up, as well as various scripts using the eeprom
+ module.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54,
+ 0x55, 0x56, 0x57, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(eeprom);
+
+
+/* Size of EEPROM in bytes */
+#define EEPROM_SIZE 256
+
+/* possible types of eeprom devices */
+enum eeprom_nature {
+ UNKNOWN,
+ VAIO,
+};
+
+/* Each client has this additional data */
+struct eeprom_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ u8 valid; /* bitfield, bit!=0 if slice is valid */
+ unsigned long last_updated[8]; /* In jiffies, 8 slices */
+ u8 data[EEPROM_SIZE]; /* Register values */
+ enum eeprom_nature nature;
+};
+
+
+static int eeprom_attach_adapter(struct i2c_adapter *adapter);
+static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind);
+static int eeprom_detach_client(struct i2c_client *client);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver eeprom_driver = {
+ .owner = THIS_MODULE,
+ .name = "eeprom",
+ .id = I2C_DRIVERID_EEPROM,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = eeprom_attach_adapter,
+ .detach_client = eeprom_detach_client,
+};
+
+static void eeprom_update_client(struct i2c_client *client, u8 slice)
+{
+ struct eeprom_data *data = i2c_get_clientdata(client);
+ int i, j;
+
+ down(&data->update_lock);
+
+ if (!(data->valid & (1 << slice)) ||
+ time_after(jiffies, data->last_updated[slice] + 300 * HZ)) {
+ dev_dbg(&client->dev, "Starting eeprom update, slice %u\n", slice);
+
+ if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK)) {
+ for (i = slice << 5; i < (slice + 1) << 5; i += I2C_SMBUS_I2C_BLOCK_MAX)
+ if (i2c_smbus_read_i2c_block_data(client, i, data->data + i) != I2C_SMBUS_I2C_BLOCK_MAX)
+ goto exit;
+ } else {
+ if (i2c_smbus_write_byte(client, slice << 5)) {
+ dev_dbg(&client->dev, "eeprom read start has failed!\n");
+ goto exit;
+ }
+ for (i = slice << 5; i < (slice + 1) << 5; i++) {
+ j = i2c_smbus_read_byte(client);
+ if (j < 0)
+ goto exit;
+ data->data[i] = (u8) j;
+ }
+ }
+ data->last_updated[slice] = jiffies;
+ data->valid |= (1 << slice);
+ }
+exit:
+ up(&data->update_lock);
+}
+
+static ssize_t eeprom_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj));
+ struct eeprom_data *data = i2c_get_clientdata(client);
+ u8 slice;
+
+ if (off > EEPROM_SIZE)
+ return 0;
+ if (off + count > EEPROM_SIZE)
+ count = EEPROM_SIZE - off;
+
+ /* Only refresh slices which contain requested bytes */
+ for (slice = off >> 5; slice <= (off + count - 1) >> 5; slice++)
+ eeprom_update_client(client, slice);
+
+ /* Hide Vaio security settings to regular users (16 first bytes) */
+ if (data->nature == VAIO && off < 16 && !capable(CAP_SYS_ADMIN)) {
+ size_t in_row1 = 16 - off;
+ in_row1 = min(in_row1, count);
+ memset(buf, 0, in_row1);
+ if (count - in_row1 > 0)
+ memcpy(buf + in_row1, &data->data[16], count - in_row1);
+ } else {
+ memcpy(buf, &data->data[off], count);
+ }
+
+ return count;
+}
+
+static struct bin_attribute eeprom_attr = {
+ .attr = {
+ .name = "eeprom",
+ .mode = S_IRUGO,
+ .owner = THIS_MODULE,
+ },
+ .size = EEPROM_SIZE,
+ .read = eeprom_read,
+};
+
+static int eeprom_attach_adapter(struct i2c_adapter *adapter)
+{
+ return i2c_detect(adapter, &addr_data, eeprom_detect);
+}
+
+/* This function is called by i2c_detect */
+int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct eeprom_data *data;
+ int err = 0;
+
+ /* There are three ways we can read the EEPROM data:
+ (1) I2C block reads (faster, but unsupported by most adapters)
+ (2) Consecutive byte reads (100% overhead)
+ (3) Regular byte data reads (200% overhead)
+ The third method is not implemented by this driver because all
+ known adapters support at least the second. */
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA
+ | I2C_FUNC_SMBUS_BYTE))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access eeprom_{read,write}_value. */
+ if (!(data = kmalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct eeprom_data));
+
+ new_client = &data->client;
+ memset(data->data, 0xff, EEPROM_SIZE);
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &eeprom_driver;
+ new_client->flags = 0;
+
+ /* prevent 24RF08 corruption */
+ i2c_smbus_write_quick(new_client, 0);
+
+ /* Fill in the remaining client fields */
+ strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+ data->nature = UNKNOWN;
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_kfree;
+
+ /* Detect the Vaio nature of EEPROMs.
+ We use the "PCG-" prefix as the signature. */
+ if (address == 0x57) {
+ if (i2c_smbus_read_byte_data(new_client, 0x80) == 'P'
+ && i2c_smbus_read_byte(new_client) == 'C'
+ && i2c_smbus_read_byte(new_client) == 'G'
+ && i2c_smbus_read_byte(new_client) == '-') {
+ dev_info(&new_client->dev, "Vaio EEPROM detected, "
+ "enabling password protection\n");
+ data->nature = VAIO;
+ }
+ }
+
+ /* create the sysfs eeprom file */
+ sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr);
+
+ return 0;
+
+exit_kfree:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int eeprom_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ err = i2c_detach_client(client);
+ if (err) {
+ dev_err(&client->dev, "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+static int __init eeprom_init(void)
+{
+ return i2c_add_driver(&eeprom_driver);
+}
+
+static void __exit eeprom_exit(void)
+{
+ i2c_del_driver(&eeprom_driver);
+}
+
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and "
+ "Philip Edelbrock <phil@netroedge.com> and "
+ "Greg Kroah-Hartman <greg@kroah.com>");
+MODULE_DESCRIPTION("I2C EEPROM driver");
+MODULE_LICENSE("GPL");
+
+module_init(eeprom_init);
+module_exit(eeprom_exit);
diff --git a/drivers/i2c/chips/fscher.c b/drivers/i2c/chips/fscher.c
new file mode 100644
index 0000000..18e33ac
--- /dev/null
+++ b/drivers/i2c/chips/fscher.c
@@ -0,0 +1,692 @@
+/*
+ * fscher.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2003, 2004 Reinhard Nissl <rnissl@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * fujitsu siemens hermes chip,
+ * module based on fscpos.c
+ * Copyright (C) 2000 Hermann Jung <hej@odn.de>
+ * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ * and Philip Edelbrock <phil@netroedge.com>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/*
+ * Addresses to scan
+ */
+
+static unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_1(fscher);
+
+/*
+ * The FSCHER registers
+ */
+
+/* chip identification */
+#define FSCHER_REG_IDENT_0 0x00
+#define FSCHER_REG_IDENT_1 0x01
+#define FSCHER_REG_IDENT_2 0x02
+#define FSCHER_REG_REVISION 0x03
+
+/* global control and status */
+#define FSCHER_REG_EVENT_STATE 0x04
+#define FSCHER_REG_CONTROL 0x05
+
+/* watchdog */
+#define FSCHER_REG_WDOG_PRESET 0x28
+#define FSCHER_REG_WDOG_STATE 0x23
+#define FSCHER_REG_WDOG_CONTROL 0x21
+
+/* fan 0 */
+#define FSCHER_REG_FAN0_MIN 0x55
+#define FSCHER_REG_FAN0_ACT 0x0e
+#define FSCHER_REG_FAN0_STATE 0x0d
+#define FSCHER_REG_FAN0_RIPPLE 0x0f
+
+/* fan 1 */
+#define FSCHER_REG_FAN1_MIN 0x65
+#define FSCHER_REG_FAN1_ACT 0x6b
+#define FSCHER_REG_FAN1_STATE 0x62
+#define FSCHER_REG_FAN1_RIPPLE 0x6f
+
+/* fan 2 */
+#define FSCHER_REG_FAN2_MIN 0xb5
+#define FSCHER_REG_FAN2_ACT 0xbb
+#define FSCHER_REG_FAN2_STATE 0xb2
+#define FSCHER_REG_FAN2_RIPPLE 0xbf
+
+/* voltage supervision */
+#define FSCHER_REG_VOLT_12 0x45
+#define FSCHER_REG_VOLT_5 0x42
+#define FSCHER_REG_VOLT_BATT 0x48
+
+/* temperature 0 */
+#define FSCHER_REG_TEMP0_ACT 0x64
+#define FSCHER_REG_TEMP0_STATE 0x71
+
+/* temperature 1 */
+#define FSCHER_REG_TEMP1_ACT 0x32
+#define FSCHER_REG_TEMP1_STATE 0x81
+
+/* temperature 2 */
+#define FSCHER_REG_TEMP2_ACT 0x35
+#define FSCHER_REG_TEMP2_STATE 0x91
+
+/*
+ * Functions declaration
+ */
+
+static int fscher_attach_adapter(struct i2c_adapter *adapter);
+static int fscher_detect(struct i2c_adapter *adapter, int address, int kind);
+static int fscher_detach_client(struct i2c_client *client);
+static struct fscher_data *fscher_update_device(struct device *dev);
+static void fscher_init_client(struct i2c_client *client);
+
+static int fscher_read_value(struct i2c_client *client, u8 reg);
+static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver fscher_driver = {
+ .owner = THIS_MODULE,
+ .name = "fscher",
+ .id = I2C_DRIVERID_FSCHER,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = fscher_attach_adapter,
+ .detach_client = fscher_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct fscher_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* register values */
+ u8 revision; /* revision of chip */
+ u8 global_event; /* global event status */
+ u8 global_control; /* global control register */
+ u8 watchdog[3]; /* watchdog */
+ u8 volt[3]; /* 12, 5, battery voltage */
+ u8 temp_act[3]; /* temperature */
+ u8 temp_status[3]; /* status of sensor */
+ u8 fan_act[3]; /* fans revolutions per second */
+ u8 fan_status[3]; /* fan status */
+ u8 fan_min[3]; /* fan min value for rps */
+ u8 fan_ripple[3]; /* divider for rps */
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define sysfs_r(kind, sub, offset, reg) \
+static ssize_t show_##kind##sub (struct fscher_data *, char *, int); \
+static ssize_t show_##kind##offset##sub (struct device *, char *); \
+static ssize_t show_##kind##offset##sub (struct device *dev, char *buf) \
+{ \
+ struct fscher_data *data = fscher_update_device(dev); \
+ return show_##kind##sub(data, buf, (offset)); \
+}
+
+#define sysfs_w(kind, sub, offset, reg) \
+static ssize_t set_##kind##sub (struct i2c_client *, struct fscher_data *, const char *, size_t, int, int); \
+static ssize_t set_##kind##offset##sub (struct device *, const char *, size_t); \
+static ssize_t set_##kind##offset##sub (struct device *dev, const char *buf, size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct fscher_data *data = i2c_get_clientdata(client); \
+ return set_##kind##sub(client, data, buf, count, (offset), reg); \
+}
+
+#define sysfs_rw_n(kind, sub, offset, reg) \
+sysfs_r(kind, sub, offset, reg) \
+sysfs_w(kind, sub, offset, reg) \
+static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, show_##kind##offset##sub, set_##kind##offset##sub);
+
+#define sysfs_rw(kind, sub, reg) \
+sysfs_r(kind, sub, 0, reg) \
+sysfs_w(kind, sub, 0, reg) \
+static DEVICE_ATTR(kind##sub, S_IRUGO | S_IWUSR, show_##kind##0##sub, set_##kind##0##sub);
+
+#define sysfs_ro_n(kind, sub, offset, reg) \
+sysfs_r(kind, sub, offset, reg) \
+static DEVICE_ATTR(kind##offset##sub, S_IRUGO, show_##kind##offset##sub, NULL);
+
+#define sysfs_ro(kind, sub, reg) \
+sysfs_r(kind, sub, 0, reg) \
+static DEVICE_ATTR(kind, S_IRUGO, show_##kind##0##sub, NULL);
+
+#define sysfs_fan(offset, reg_status, reg_min, reg_ripple, reg_act) \
+sysfs_rw_n(pwm, , offset, reg_min) \
+sysfs_rw_n(fan, _status, offset, reg_status) \
+sysfs_rw_n(fan, _div , offset, reg_ripple) \
+sysfs_ro_n(fan, _input , offset, reg_act)
+
+#define sysfs_temp(offset, reg_status, reg_act) \
+sysfs_rw_n(temp, _status, offset, reg_status) \
+sysfs_ro_n(temp, _input , offset, reg_act)
+
+#define sysfs_in(offset, reg_act) \
+sysfs_ro_n(in, _input, offset, reg_act)
+
+#define sysfs_revision(reg_revision) \
+sysfs_ro(revision, , reg_revision)
+
+#define sysfs_alarms(reg_events) \
+sysfs_ro(alarms, , reg_events)
+
+#define sysfs_control(reg_control) \
+sysfs_rw(control, , reg_control)
+
+#define sysfs_watchdog(reg_control, reg_status, reg_preset) \
+sysfs_rw(watchdog, _control, reg_control) \
+sysfs_rw(watchdog, _status , reg_status) \
+sysfs_rw(watchdog, _preset , reg_preset)
+
+sysfs_fan(1, FSCHER_REG_FAN0_STATE, FSCHER_REG_FAN0_MIN,
+ FSCHER_REG_FAN0_RIPPLE, FSCHER_REG_FAN0_ACT)
+sysfs_fan(2, FSCHER_REG_FAN1_STATE, FSCHER_REG_FAN1_MIN,
+ FSCHER_REG_FAN1_RIPPLE, FSCHER_REG_FAN1_ACT)
+sysfs_fan(3, FSCHER_REG_FAN2_STATE, FSCHER_REG_FAN2_MIN,
+ FSCHER_REG_FAN2_RIPPLE, FSCHER_REG_FAN2_ACT)
+
+sysfs_temp(1, FSCHER_REG_TEMP0_STATE, FSCHER_REG_TEMP0_ACT)
+sysfs_temp(2, FSCHER_REG_TEMP1_STATE, FSCHER_REG_TEMP1_ACT)
+sysfs_temp(3, FSCHER_REG_TEMP2_STATE, FSCHER_REG_TEMP2_ACT)
+
+sysfs_in(0, FSCHER_REG_VOLT_12)
+sysfs_in(1, FSCHER_REG_VOLT_5)
+sysfs_in(2, FSCHER_REG_VOLT_BATT)
+
+sysfs_revision(FSCHER_REG_REVISION)
+sysfs_alarms(FSCHER_REG_EVENTS)
+sysfs_control(FSCHER_REG_CONTROL)
+sysfs_watchdog(FSCHER_REG_WDOG_CONTROL, FSCHER_REG_WDOG_STATE, FSCHER_REG_WDOG_PRESET)
+
+#define device_create_file_fan(client, offset) \
+do { \
+ device_create_file(&client->dev, &dev_attr_fan##offset##_status); \
+ device_create_file(&client->dev, &dev_attr_pwm##offset); \
+ device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
+ device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
+} while (0)
+
+#define device_create_file_temp(client, offset) \
+do { \
+ device_create_file(&client->dev, &dev_attr_temp##offset##_status); \
+ device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
+} while (0)
+
+#define device_create_file_in(client, offset) \
+do { \
+ device_create_file(&client->dev, &dev_attr_in##offset##_input); \
+} while (0)
+
+#define device_create_file_revision(client) \
+do { \
+ device_create_file(&client->dev, &dev_attr_revision); \
+} while (0)
+
+#define device_create_file_alarms(client) \
+do { \
+ device_create_file(&client->dev, &dev_attr_alarms); \
+} while (0)
+
+#define device_create_file_control(client) \
+do { \
+ device_create_file(&client->dev, &dev_attr_control); \
+} while (0)
+
+#define device_create_file_watchdog(client) \
+do { \
+ device_create_file(&client->dev, &dev_attr_watchdog_status); \
+ device_create_file(&client->dev, &dev_attr_watchdog_control); \
+ device_create_file(&client->dev, &dev_attr_watchdog_preset); \
+} while (0)
+
+/*
+ * Real code
+ */
+
+static int fscher_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, fscher_detect);
+}
+
+static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct fscher_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ * client structure, even though we cannot fill it completely yet.
+ * But it allows us to access i2c_smbus_read_byte_data. */
+ if (!(data = kmalloc(sizeof(struct fscher_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct fscher_data));
+
+ /* The common I2C client data is placed right before the
+ * Hermes-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &fscher_driver;
+ new_client->flags = 0;
+
+ /* Do the remaining detection unless force or force_fscher parameter */
+ if (kind < 0) {
+ if ((i2c_smbus_read_byte_data(new_client,
+ FSCHER_REG_IDENT_0) != 0x48) /* 'H' */
+ || (i2c_smbus_read_byte_data(new_client,
+ FSCHER_REG_IDENT_1) != 0x45) /* 'E' */
+ || (i2c_smbus_read_byte_data(new_client,
+ FSCHER_REG_IDENT_2) != 0x52)) /* 'R' */
+ goto exit_free;
+ }
+
+ /* Fill in the remaining client fields and put it into the
+ * global list */
+ strlcpy(new_client->name, "fscher", I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ fscher_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file_revision(new_client);
+ device_create_file_alarms(new_client);
+ device_create_file_control(new_client);
+ device_create_file_watchdog(new_client);
+
+ device_create_file_in(new_client, 0);
+ device_create_file_in(new_client, 1);
+ device_create_file_in(new_client, 2);
+
+ device_create_file_fan(new_client, 1);
+ device_create_file_fan(new_client, 2);
+ device_create_file_fan(new_client, 3);
+
+ device_create_file_temp(new_client, 1);
+ device_create_file_temp(new_client, 2);
+ device_create_file_temp(new_client, 3);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int fscher_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static int fscher_read_value(struct i2c_client *client, u8 reg)
+{
+ dev_dbg(&client->dev, "read reg 0x%02x\n", reg);
+
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ dev_dbg(&client->dev, "write reg 0x%02x, val 0x%02x\n",
+ reg, value);
+
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new FSC Hermes. */
+static void fscher_init_client(struct i2c_client *client)
+{
+ struct fscher_data *data = i2c_get_clientdata(client);
+
+ /* Read revision from chip */
+ data->revision = fscher_read_value(client, FSCHER_REG_REVISION);
+}
+
+static struct fscher_data *fscher_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct fscher_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+
+ dev_dbg(&client->dev, "Starting fscher update\n");
+
+ data->temp_act[0] = fscher_read_value(client, FSCHER_REG_TEMP0_ACT);
+ data->temp_act[1] = fscher_read_value(client, FSCHER_REG_TEMP1_ACT);
+ data->temp_act[2] = fscher_read_value(client, FSCHER_REG_TEMP2_ACT);
+ data->temp_status[0] = fscher_read_value(client, FSCHER_REG_TEMP0_STATE);
+ data->temp_status[1] = fscher_read_value(client, FSCHER_REG_TEMP1_STATE);
+ data->temp_status[2] = fscher_read_value(client, FSCHER_REG_TEMP2_STATE);
+
+ data->volt[0] = fscher_read_value(client, FSCHER_REG_VOLT_12);
+ data->volt[1] = fscher_read_value(client, FSCHER_REG_VOLT_5);
+ data->volt[2] = fscher_read_value(client, FSCHER_REG_VOLT_BATT);
+
+ data->fan_act[0] = fscher_read_value(client, FSCHER_REG_FAN0_ACT);
+ data->fan_act[1] = fscher_read_value(client, FSCHER_REG_FAN1_ACT);
+ data->fan_act[2] = fscher_read_value(client, FSCHER_REG_FAN2_ACT);
+ data->fan_status[0] = fscher_read_value(client, FSCHER_REG_FAN0_STATE);
+ data->fan_status[1] = fscher_read_value(client, FSCHER_REG_FAN1_STATE);
+ data->fan_status[2] = fscher_read_value(client, FSCHER_REG_FAN2_STATE);
+ data->fan_min[0] = fscher_read_value(client, FSCHER_REG_FAN0_MIN);
+ data->fan_min[1] = fscher_read_value(client, FSCHER_REG_FAN1_MIN);
+ data->fan_min[2] = fscher_read_value(client, FSCHER_REG_FAN2_MIN);
+ data->fan_ripple[0] = fscher_read_value(client, FSCHER_REG_FAN0_RIPPLE);
+ data->fan_ripple[1] = fscher_read_value(client, FSCHER_REG_FAN1_RIPPLE);
+ data->fan_ripple[2] = fscher_read_value(client, FSCHER_REG_FAN2_RIPPLE);
+
+ data->watchdog[0] = fscher_read_value(client, FSCHER_REG_WDOG_PRESET);
+ data->watchdog[1] = fscher_read_value(client, FSCHER_REG_WDOG_STATE);
+ data->watchdog[2] = fscher_read_value(client, FSCHER_REG_WDOG_CONTROL);
+
+ data->global_event = fscher_read_value(client, FSCHER_REG_EVENT_STATE);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+
+
+#define FAN_INDEX_FROM_NUM(nr) ((nr) - 1)
+
+static ssize_t set_fan_status(struct i2c_client *client, struct fscher_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ /* bits 0..1, 3..7 reserved => mask with 0x04 */
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0x04;
+
+ down(&data->update_lock);
+ data->fan_status[FAN_INDEX_FROM_NUM(nr)] &= ~v;
+ fscher_write_value(client, reg, v);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_fan_status(struct fscher_data *data, char *buf, int nr)
+{
+ /* bits 0..1, 3..7 reserved => mask with 0x04 */
+ return sprintf(buf, "%u\n", data->fan_status[FAN_INDEX_FROM_NUM(nr)] & 0x04);
+}
+
+static ssize_t set_pwm(struct i2c_client *client, struct fscher_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[FAN_INDEX_FROM_NUM(nr)] = v > 0xff ? 0xff : v;
+ fscher_write_value(client, reg, data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_pwm(struct fscher_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%u\n", data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
+}
+
+static ssize_t set_fan_div(struct i2c_client *client, struct fscher_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ /* supported values: 2, 4, 8 */
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+
+ switch (v) {
+ case 2: v = 1; break;
+ case 4: v = 2; break;
+ case 8: v = 3; break;
+ default:
+ dev_err(&client->dev, "fan_div value %ld not "
+ "supported. Choose one of 2, 4 or 8!\n", v);
+ return -EINVAL;
+ }
+
+ down(&data->update_lock);
+
+ /* bits 2..7 reserved => mask with 0x03 */
+ data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] &= ~0x03;
+ data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] |= v;
+
+ fscher_write_value(client, reg, data->fan_ripple[FAN_INDEX_FROM_NUM(nr)]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_fan_div(struct fscher_data *data, char *buf, int nr)
+{
+ /* bits 2..7 reserved => mask with 0x03 */
+ return sprintf(buf, "%u\n", 1 << (data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] & 0x03));
+}
+
+#define RPM_FROM_REG(val) (val*60)
+
+static ssize_t show_fan_input (struct fscher_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[FAN_INDEX_FROM_NUM(nr)]));
+}
+
+
+
+#define TEMP_INDEX_FROM_NUM(nr) ((nr) - 1)
+
+static ssize_t set_temp_status(struct i2c_client *client, struct fscher_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ /* bits 2..7 reserved, 0 read only => mask with 0x02 */
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+
+ down(&data->update_lock);
+ data->temp_status[TEMP_INDEX_FROM_NUM(nr)] &= ~v;
+ fscher_write_value(client, reg, v);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_temp_status(struct fscher_data *data, char *buf, int nr)
+{
+ /* bits 2..7 reserved => mask with 0x03 */
+ return sprintf(buf, "%u\n", data->temp_status[TEMP_INDEX_FROM_NUM(nr)] & 0x03);
+}
+
+#define TEMP_FROM_REG(val) (((val) - 128) * 1000)
+
+static ssize_t show_temp_input(struct fscher_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[TEMP_INDEX_FROM_NUM(nr)]));
+}
+
+/*
+ * The final conversion is specified in sensors.conf, as it depends on
+ * mainboard specific values. We export the registers contents as
+ * pseudo-hundredths-of-Volts (range 0V - 2.55V). Not that it makes much
+ * sense per se, but it minimizes the conversions count and keeps the
+ * values within a usual range.
+ */
+#define VOLT_FROM_REG(val) ((val) * 10)
+
+static ssize_t show_in_input(struct fscher_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[nr]));
+}
+
+
+
+static ssize_t show_revision(struct fscher_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%u\n", data->revision);
+}
+
+
+
+static ssize_t show_alarms(struct fscher_data *data, char *buf, int nr)
+{
+ /* bits 2, 5..6 reserved => mask with 0x9b */
+ return sprintf(buf, "%u\n", data->global_event & 0x9b);
+}
+
+
+
+static ssize_t set_control(struct i2c_client *client, struct fscher_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ /* bits 1..7 reserved => mask with 0x01 */
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0x01;
+
+ down(&data->update_lock);
+ data->global_control &= ~v;
+ fscher_write_value(client, reg, v);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_control(struct fscher_data *data, char *buf, int nr)
+{
+ /* bits 1..7 reserved => mask with 0x01 */
+ return sprintf(buf, "%u\n", data->global_control & 0x01);
+}
+
+
+
+static ssize_t set_watchdog_control(struct i2c_client *client, struct
+ fscher_data *data, const char *buf, size_t count,
+ int nr, int reg)
+{
+ /* bits 0..3 reserved => mask with 0xf0 */
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
+
+ down(&data->update_lock);
+ data->watchdog[2] &= ~0xf0;
+ data->watchdog[2] |= v;
+ fscher_write_value(client, reg, data->watchdog[2]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_watchdog_control(struct fscher_data *data, char *buf, int nr)
+{
+ /* bits 0..3 reserved, bit 5 write only => mask with 0xd0 */
+ return sprintf(buf, "%u\n", data->watchdog[2] & 0xd0);
+}
+
+static ssize_t set_watchdog_status(struct i2c_client *client, struct fscher_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ /* bits 0, 2..7 reserved => mask with 0x02 */
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+
+ down(&data->update_lock);
+ data->watchdog[1] &= ~v;
+ fscher_write_value(client, reg, v);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_watchdog_status(struct fscher_data *data, char *buf, int nr)
+{
+ /* bits 0, 2..7 reserved => mask with 0x02 */
+ return sprintf(buf, "%u\n", data->watchdog[1] & 0x02);
+}
+
+static ssize_t set_watchdog_preset(struct i2c_client *client, struct fscher_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
+
+ down(&data->update_lock);
+ data->watchdog[0] = v;
+ fscher_write_value(client, reg, data->watchdog[0]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_watchdog_preset(struct fscher_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%u\n", data->watchdog[0]);
+}
+
+static int __init sensors_fscher_init(void)
+{
+ return i2c_add_driver(&fscher_driver);
+}
+
+static void __exit sensors_fscher_exit(void)
+{
+ i2c_del_driver(&fscher_driver);
+}
+
+MODULE_AUTHOR("Reinhard Nissl <rnissl@gmx.de>");
+MODULE_DESCRIPTION("FSC Hermes driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_fscher_init);
+module_exit(sensors_fscher_exit);
diff --git a/drivers/i2c/chips/fscpos.c b/drivers/i2c/chips/fscpos.c
new file mode 100644
index 0000000..2cac791
--- /dev/null
+++ b/drivers/i2c/chips/fscpos.c
@@ -0,0 +1,641 @@
+/*
+ fscpos.c - Kernel module for hardware monitoring with FSC Poseidon chips
+ Copyright (C) 2004, 2005 Stefan Ott <stefan@desire.ch>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ fujitsu siemens poseidon chip,
+ module based on the old fscpos module by Hermann Jung <hej@odn.de> and
+ the fscher module by Reinhard Nissl <rnissl@gmx.de>
+
+ original module based on lm80.c
+ Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ and Philip Edelbrock <phil@netroedge.com>
+
+ Thanks to Jean Delvare for reviewing my code and suggesting a lot of
+ improvements.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/init.h>
+
+/*
+ * Addresses to scan
+ */
+static unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+SENSORS_INSMOD_1(fscpos);
+
+/*
+ * The FSCPOS registers
+ */
+
+/* chip identification */
+#define FSCPOS_REG_IDENT_0 0x00
+#define FSCPOS_REG_IDENT_1 0x01
+#define FSCPOS_REG_IDENT_2 0x02
+#define FSCPOS_REG_REVISION 0x03
+
+/* global control and status */
+#define FSCPOS_REG_EVENT_STATE 0x04
+#define FSCPOS_REG_CONTROL 0x05
+
+/* watchdog */
+#define FSCPOS_REG_WDOG_PRESET 0x28
+#define FSCPOS_REG_WDOG_STATE 0x23
+#define FSCPOS_REG_WDOG_CONTROL 0x21
+
+/* voltages */
+#define FSCPOS_REG_VOLT_12 0x45
+#define FSCPOS_REG_VOLT_5 0x42
+#define FSCPOS_REG_VOLT_BATT 0x48
+
+/* fans - the chip does not support minimum speed for fan2 */
+static u8 FSCPOS_REG_PWM[] = { 0x55, 0x65 };
+static u8 FSCPOS_REG_FAN_ACT[] = { 0x0e, 0x6b, 0xab };
+static u8 FSCPOS_REG_FAN_STATE[] = { 0x0d, 0x62, 0xa2 };
+static u8 FSCPOS_REG_FAN_RIPPLE[] = { 0x0f, 0x6f, 0xaf };
+
+/* temperatures */
+static u8 FSCPOS_REG_TEMP_ACT[] = { 0x64, 0x32, 0x35 };
+static u8 FSCPOS_REG_TEMP_STATE[] = { 0x71, 0x81, 0x91 };
+
+/*
+ * Functions declaration
+ */
+static int fscpos_attach_adapter(struct i2c_adapter *adapter);
+static int fscpos_detect(struct i2c_adapter *adapter, int address, int kind);
+static int fscpos_detach_client(struct i2c_client *client);
+
+static int fscpos_read_value(struct i2c_client *client, u8 register);
+static int fscpos_write_value(struct i2c_client *client, u8 register, u8 value);
+static struct fscpos_data *fscpos_update_device(struct device *dev);
+static void fscpos_init_client(struct i2c_client *client);
+
+static void reset_fan_alarm(struct i2c_client *client, int nr);
+
+/*
+ * Driver data (common to all clients)
+ */
+static struct i2c_driver fscpos_driver = {
+ .owner = THIS_MODULE,
+ .name = "fscpos",
+ .id = I2C_DRIVERID_FSCPOS,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = fscpos_attach_adapter,
+ .detach_client = fscpos_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+struct fscpos_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* 0 until following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ /* register values */
+ u8 revision; /* revision of chip */
+ u8 global_event; /* global event status */
+ u8 global_control; /* global control register */
+ u8 wdog_control; /* watchdog control */
+ u8 wdog_state; /* watchdog status */
+ u8 wdog_preset; /* watchdog preset */
+ u8 volt[3]; /* 12, 5, battery current */
+ u8 temp_act[3]; /* temperature */
+ u8 temp_status[3]; /* status of sensor */
+ u8 fan_act[3]; /* fans revolutions per second */
+ u8 fan_status[3]; /* fan status */
+ u8 pwm[2]; /* fan min value for rps */
+ u8 fan_ripple[3]; /* divider for rps */
+};
+
+/* Temperature */
+#define TEMP_FROM_REG(val) (((val) - 128) * 1000)
+
+static ssize_t show_temp_input(struct fscpos_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[nr - 1]));
+}
+
+static ssize_t show_temp_status(struct fscpos_data *data, char *buf, int nr)
+{
+ /* bits 2..7 reserved => mask with 0x03 */
+ return sprintf(buf, "%u\n", data->temp_status[nr - 1] & 0x03);
+}
+
+static ssize_t show_temp_reset(struct fscpos_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "1\n");
+}
+
+static ssize_t set_temp_reset(struct i2c_client *client, struct fscpos_data
+ *data, const char *buf, size_t count, int nr, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+ if (v != 1) {
+ dev_err(&client->dev, "temp_reset value %ld not supported. "
+ "Use 1 to reset the alarm!\n", v);
+ return -EINVAL;
+ }
+
+ dev_info(&client->dev, "You used the temp_reset feature which has not "
+ "been proplerly tested. Please report your "
+ "experience to the module author.\n");
+
+ /* Supported value: 2 (clears the status) */
+ fscpos_write_value(client, FSCPOS_REG_TEMP_STATE[nr], 2);
+ return count;
+}
+
+/* Fans */
+#define RPM_FROM_REG(val) ((val) * 60)
+
+static ssize_t show_fan_status(struct fscpos_data *data, char *buf, int nr)
+{
+ /* bits 0..1, 3..7 reserved => mask with 0x04 */
+ return sprintf(buf, "%u\n", data->fan_status[nr - 1] & 0x04);
+}
+
+static ssize_t show_fan_input(struct fscpos_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[nr - 1]));
+}
+
+static ssize_t show_fan_ripple(struct fscpos_data *data, char *buf, int nr)
+{
+ /* bits 2..7 reserved => mask with 0x03 */
+ return sprintf(buf, "%u\n", data->fan_ripple[nr - 1] & 0x03);
+}
+
+static ssize_t set_fan_ripple(struct i2c_client *client, struct fscpos_data
+ *data, const char *buf, size_t count, int nr, int reg)
+{
+ /* supported values: 2, 4, 8 */
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+
+ switch (v) {
+ case 2: v = 1; break;
+ case 4: v = 2; break;
+ case 8: v = 3; break;
+ default:
+ dev_err(&client->dev, "fan_ripple value %ld not supported. "
+ "Must be one of 2, 4 or 8!\n", v);
+ return -EINVAL;
+ }
+
+ down(&data->update_lock);
+ /* bits 2..7 reserved => mask with 0x03 */
+ data->fan_ripple[nr - 1] &= ~0x03;
+ data->fan_ripple[nr - 1] |= v;
+
+ fscpos_write_value(client, reg, data->fan_ripple[nr - 1]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_pwm(struct fscpos_data *data, char *buf, int nr)
+{
+ return sprintf(buf, "%u\n", data->pwm[nr - 1]);
+}
+
+static ssize_t set_pwm(struct i2c_client *client, struct fscpos_data *data,
+ const char *buf, size_t count, int nr, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+
+ /* Range: 0..255 */
+ if (v < 0) v = 0;
+ if (v > 255) v = 255;
+
+ down(&data->update_lock);
+ data->pwm[nr - 1] = v;
+ fscpos_write_value(client, reg, data->pwm[nr - 1]);
+ up(&data->update_lock);
+ return count;
+}
+
+static void reset_fan_alarm(struct i2c_client *client, int nr)
+{
+ fscpos_write_value(client, FSCPOS_REG_FAN_STATE[nr], 4);
+}
+
+/* Volts */
+#define VOLT_FROM_REG(val, mult) ((val) * (mult) / 255)
+
+static ssize_t show_volt_12(struct device *dev, char *buf)
+{
+ struct fscpos_data *data = fscpos_update_device(dev);
+ return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[0], 14200));
+}
+
+static ssize_t show_volt_5(struct device *dev, char *buf)
+{
+ struct fscpos_data *data = fscpos_update_device(dev);
+ return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[1], 6600));
+}
+
+static ssize_t show_volt_batt(struct device *dev, char *buf)
+{
+ struct fscpos_data *data = fscpos_update_device(dev);
+ return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[2], 3300));
+}
+
+/* Watchdog */
+static ssize_t show_wdog_control(struct fscpos_data *data, char *buf)
+{
+ /* bits 0..3 reserved, bit 6 write only => mask with 0xb0 */
+ return sprintf(buf, "%u\n", data->wdog_control & 0xb0);
+}
+
+static ssize_t set_wdog_control(struct i2c_client *client, struct fscpos_data
+ *data, const char *buf, size_t count, int reg)
+{
+ /* bits 0..3 reserved => mask with 0xf0 */
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
+
+ down(&data->update_lock);
+ data->wdog_control &= ~0xf0;
+ data->wdog_control |= v;
+ fscpos_write_value(client, reg, data->wdog_control);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_wdog_state(struct fscpos_data *data, char *buf)
+{
+ /* bits 0, 2..7 reserved => mask with 0x02 */
+ return sprintf(buf, "%u\n", data->wdog_state & 0x02);
+}
+
+static ssize_t set_wdog_state(struct i2c_client *client, struct fscpos_data
+ *data, const char *buf, size_t count, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+
+ /* Valid values: 2 (clear) */
+ if (v != 2) {
+ dev_err(&client->dev, "wdog_state value %ld not supported. "
+ "Must be 2 to clear the state!\n", v);
+ return -EINVAL;
+ }
+
+ down(&data->update_lock);
+ data->wdog_state &= ~v;
+ fscpos_write_value(client, reg, v);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_wdog_preset(struct fscpos_data *data, char *buf)
+{
+ return sprintf(buf, "%u\n", data->wdog_preset);
+}
+
+static ssize_t set_wdog_preset(struct i2c_client *client, struct fscpos_data
+ *data, const char *buf, size_t count, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
+
+ down(&data->update_lock);
+ data->wdog_preset = v;
+ fscpos_write_value(client, reg, data->wdog_preset);
+ up(&data->update_lock);
+ return count;
+}
+
+/* Event */
+static ssize_t show_event(struct device *dev, char *buf)
+{
+ /* bits 5..7 reserved => mask with 0x1f */
+ struct fscpos_data *data = fscpos_update_device(dev);
+ return sprintf(buf, "%u\n", data->global_event & 0x9b);
+}
+
+/*
+ * Sysfs stuff
+ */
+#define create_getter(kind, sub) \
+ static ssize_t sysfs_show_##kind##sub(struct device *dev, char *buf) \
+ { \
+ struct fscpos_data *data = fscpos_update_device(dev); \
+ return show_##kind##sub(data, buf); \
+ }
+
+#define create_getter_n(kind, offset, sub) \
+ static ssize_t sysfs_show_##kind##offset##sub(struct device *dev, char\
+ *buf) \
+ { \
+ struct fscpos_data *data = fscpos_update_device(dev); \
+ return show_##kind##sub(data, buf, offset); \
+ }
+
+#define create_setter(kind, sub, reg) \
+ static ssize_t sysfs_set_##kind##sub (struct device *dev, const char \
+ *buf, size_t count) \
+ { \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct fscpos_data *data = i2c_get_clientdata(client); \
+ return set_##kind##sub(client, data, buf, count, reg); \
+ }
+
+#define create_setter_n(kind, offset, sub, reg) \
+ static ssize_t sysfs_set_##kind##offset##sub (struct device *dev, \
+ const char *buf, size_t count) \
+ { \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct fscpos_data *data = i2c_get_clientdata(client); \
+ return set_##kind##sub(client, data, buf, count, offset, reg);\
+ }
+
+#define create_sysfs_device_ro(kind, sub, offset) \
+ static DEVICE_ATTR(kind##offset##sub, S_IRUGO, \
+ sysfs_show_##kind##offset##sub, NULL);
+
+#define create_sysfs_device_rw(kind, sub, offset) \
+ static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, \
+ sysfs_show_##kind##offset##sub, sysfs_set_##kind##offset##sub);
+
+#define sysfs_ro_n(kind, sub, offset) \
+ create_getter_n(kind, offset, sub); \
+ create_sysfs_device_ro(kind, sub, offset);
+
+#define sysfs_rw_n(kind, sub, offset, reg) \
+ create_getter_n(kind, offset, sub); \
+ create_setter_n(kind, offset, sub, reg); \
+ create_sysfs_device_rw(kind, sub, offset);
+
+#define sysfs_rw(kind, sub, reg) \
+ create_getter(kind, sub); \
+ create_setter(kind, sub, reg); \
+ create_sysfs_device_rw(kind, sub,);
+
+#define sysfs_fan_with_min(offset, reg_status, reg_ripple, reg_min) \
+ sysfs_fan(offset, reg_status, reg_ripple); \
+ sysfs_rw_n(pwm,, offset, reg_min);
+
+#define sysfs_fan(offset, reg_status, reg_ripple) \
+ sysfs_ro_n(fan, _input, offset); \
+ sysfs_ro_n(fan, _status, offset); \
+ sysfs_rw_n(fan, _ripple, offset, reg_ripple);
+
+#define sysfs_temp(offset, reg_status) \
+ sysfs_ro_n(temp, _input, offset); \
+ sysfs_ro_n(temp, _status, offset); \
+ sysfs_rw_n(temp, _reset, offset, reg_status);
+
+#define sysfs_watchdog(reg_wdog_preset, reg_wdog_state, reg_wdog_control) \
+ sysfs_rw(wdog, _control, reg_wdog_control); \
+ sysfs_rw(wdog, _preset, reg_wdog_preset); \
+ sysfs_rw(wdog, _state, reg_wdog_state);
+
+sysfs_fan_with_min(1, FSCPOS_REG_FAN_STATE[0], FSCPOS_REG_FAN_RIPPLE[0],
+ FSCPOS_REG_PWM[0]);
+sysfs_fan_with_min(2, FSCPOS_REG_FAN_STATE[1], FSCPOS_REG_FAN_RIPPLE[1],
+ FSCPOS_REG_PWM[1]);
+sysfs_fan(3, FSCPOS_REG_FAN_STATE[2], FSCPOS_REG_FAN_RIPPLE[2]);
+
+sysfs_temp(1, FSCPOS_REG_TEMP_STATE[0]);
+sysfs_temp(2, FSCPOS_REG_TEMP_STATE[1]);
+sysfs_temp(3, FSCPOS_REG_TEMP_STATE[2]);
+
+sysfs_watchdog(FSCPOS_REG_WDOG_PRESET, FSCPOS_REG_WDOG_STATE,
+ FSCPOS_REG_WDOG_CONTROL);
+
+static DEVICE_ATTR(event, S_IRUGO, show_event, NULL);
+static DEVICE_ATTR(in0_input, S_IRUGO, show_volt_12, NULL);
+static DEVICE_ATTR(in1_input, S_IRUGO, show_volt_5, NULL);
+static DEVICE_ATTR(in2_input, S_IRUGO, show_volt_batt, NULL);
+
+static int fscpos_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, fscpos_detect);
+}
+
+int fscpos_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct fscpos_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ /*
+ * OK. For now, we presume we have a valid client. We now create the
+ * client structure, even though we cannot fill it completely yet.
+ * But it allows us to access fscpos_{read,write}_value.
+ */
+
+ if (!(data = kmalloc(sizeof(struct fscpos_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct fscpos_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &fscpos_driver;
+ new_client->flags = 0;
+
+ /* Do the remaining detection unless force or force_fscpos parameter */
+ if (kind < 0) {
+ if ((fscpos_read_value(new_client, FSCPOS_REG_IDENT_0)
+ != 0x50) /* 'P' */
+ || (fscpos_read_value(new_client, FSCPOS_REG_IDENT_1)
+ != 0x45) /* 'E' */
+ || (fscpos_read_value(new_client, FSCPOS_REG_IDENT_2)
+ != 0x47))/* 'G' */
+ {
+ dev_dbg(&new_client->dev, "fscpos detection failed\n");
+ goto exit_free;
+ }
+ }
+
+ /* Fill in the remaining client fields and put it in the global list */
+ strlcpy(new_client->name, "fscpos", I2C_NAME_SIZE);
+
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Inizialize the fscpos chip */
+ fscpos_init_client(new_client);
+
+ /* Announce that the chip was found */
+ dev_info(&new_client->dev, "Found fscpos chip, rev %u\n", data->revision);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_event);
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_wdog_control);
+ device_create_file(&new_client->dev, &dev_attr_wdog_preset);
+ device_create_file(&new_client->dev, &dev_attr_wdog_state);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_status);
+ device_create_file(&new_client->dev, &dev_attr_temp1_reset);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_status);
+ device_create_file(&new_client->dev, &dev_attr_temp2_reset);
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_status);
+ device_create_file(&new_client->dev, &dev_attr_temp3_reset);
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_status);
+ device_create_file(&new_client->dev, &dev_attr_fan1_ripple);
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_status);
+ device_create_file(&new_client->dev, &dev_attr_fan2_ripple);
+ device_create_file(&new_client->dev, &dev_attr_pwm2);
+ device_create_file(&new_client->dev, &dev_attr_fan3_input);
+ device_create_file(&new_client->dev, &dev_attr_fan3_status);
+ device_create_file(&new_client->dev, &dev_attr_fan3_ripple);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int fscpos_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, client"
+ " not detached.\n");
+ return err;
+ }
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static int fscpos_read_value(struct i2c_client *client, u8 reg)
+{
+ dev_dbg(&client->dev, "Read reg 0x%02x\n", reg);
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ dev_dbg(&client->dev, "Write reg 0x%02x, val 0x%02x\n", reg, value);
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new FSCPOS chip */
+static void fscpos_init_client(struct i2c_client *client)
+{
+ struct fscpos_data *data = i2c_get_clientdata(client);
+
+ /* read revision from chip */
+ data->revision = fscpos_read_value(client, FSCPOS_REG_REVISION);
+}
+
+static struct fscpos_data *fscpos_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct fscpos_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if ((jiffies - data->last_updated > 2 * HZ) ||
+ (jiffies < data->last_updated) || !data->valid) {
+ int i;
+
+ dev_dbg(&client->dev, "Starting fscpos update\n");
+
+ for (i = 0; i < 3; i++) {
+ data->temp_act[i] = fscpos_read_value(client,
+ FSCPOS_REG_TEMP_ACT[i]);
+ data->temp_status[i] = fscpos_read_value(client,
+ FSCPOS_REG_TEMP_STATE[i]);
+ data->fan_act[i] = fscpos_read_value(client,
+ FSCPOS_REG_FAN_ACT[i]);
+ data->fan_status[i] = fscpos_read_value(client,
+ FSCPOS_REG_FAN_STATE[i]);
+ data->fan_ripple[i] = fscpos_read_value(client,
+ FSCPOS_REG_FAN_RIPPLE[i]);
+ if (i < 2) {
+ /* fan2_min is not supported by the chip */
+ data->pwm[i] = fscpos_read_value(client,
+ FSCPOS_REG_PWM[i]);
+ }
+ /* reset fan status if speed is back to > 0 */
+ if (data->fan_status[i] != 0 && data->fan_act[i] > 0) {
+ reset_fan_alarm(client, i);
+ }
+ }
+
+ data->volt[0] = fscpos_read_value(client, FSCPOS_REG_VOLT_12);
+ data->volt[1] = fscpos_read_value(client, FSCPOS_REG_VOLT_5);
+ data->volt[2] = fscpos_read_value(client, FSCPOS_REG_VOLT_BATT);
+
+ data->wdog_preset = fscpos_read_value(client,
+ FSCPOS_REG_WDOG_PRESET);
+ data->wdog_state = fscpos_read_value(client,
+ FSCPOS_REG_WDOG_STATE);
+ data->wdog_control = fscpos_read_value(client,
+ FSCPOS_REG_WDOG_CONTROL);
+
+ data->global_event = fscpos_read_value(client,
+ FSCPOS_REG_EVENT_STATE);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+ up(&data->update_lock);
+ return data;
+}
+
+static int __init sm_fscpos_init(void)
+{
+ return i2c_add_driver(&fscpos_driver);
+}
+
+static void __exit sm_fscpos_exit(void)
+{
+ i2c_del_driver(&fscpos_driver);
+}
+
+MODULE_AUTHOR("Stefan Ott <stefan@desire.ch> based on work from Hermann Jung "
+ "<hej@odn.de>, Frodo Looijaard <frodol@dds.nl>"
+ " and Philip Edelbrock <phil@netroedge.com>");
+MODULE_DESCRIPTION("fujitsu siemens poseidon chip driver");
+MODULE_LICENSE("GPL");
+
+module_init(sm_fscpos_init);
+module_exit(sm_fscpos_exit);
diff --git a/drivers/i2c/chips/gl518sm.c b/drivers/i2c/chips/gl518sm.c
new file mode 100644
index 0000000..c82d6ce
--- /dev/null
+++ b/drivers/i2c/chips/gl518sm.c
@@ -0,0 +1,605 @@
+/*
+ * gl518sm.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
+ * Kyosti Malkki <kmalkki@cc.hut.fi>
+ * Copyright (C) 2004 Hong-Gunn Chew <hglinux@gunnet.org> and
+ * Jean Delvare <khali@linux-fr.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Ported to Linux 2.6 by Hong-Gunn Chew with the help of Jean Delvare
+ * and advice of Greg Kroah-Hartman.
+ *
+ * Notes about the port:
+ * Release 0x00 of the GL518SM chipset doesn't support reading of in0,
+ * in1 nor in2. The original driver had an ugly workaround to get them
+ * anyway (changing limits and watching alarms trigger and wear off).
+ * We did not keep that part of the original driver in the Linux 2.6
+ * version, since it was making the driver significantly more complex
+ * with no real benefit.
+ *
+ * History:
+ * 2004-01-28 Original port. (Hong-Gunn Chew)
+ * 2004-01-31 Code review and approval. (Jean Delvare)
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_2(gl518sm_r00, gl518sm_r80);
+
+/* Many GL518 constants specified below */
+
+/* The GL518 registers */
+#define GL518_REG_CHIP_ID 0x00
+#define GL518_REG_REVISION 0x01
+#define GL518_REG_VENDOR_ID 0x02
+#define GL518_REG_CONF 0x03
+#define GL518_REG_TEMP_IN 0x04
+#define GL518_REG_TEMP_MAX 0x05
+#define GL518_REG_TEMP_HYST 0x06
+#define GL518_REG_FAN_COUNT 0x07
+#define GL518_REG_FAN_LIMIT 0x08
+#define GL518_REG_VIN1_LIMIT 0x09
+#define GL518_REG_VIN2_LIMIT 0x0a
+#define GL518_REG_VIN3_LIMIT 0x0b
+#define GL518_REG_VDD_LIMIT 0x0c
+#define GL518_REG_VIN3 0x0d
+#define GL518_REG_MISC 0x0f
+#define GL518_REG_ALARM 0x10
+#define GL518_REG_MASK 0x11
+#define GL518_REG_INT 0x12
+#define GL518_REG_VIN2 0x13
+#define GL518_REG_VIN1 0x14
+#define GL518_REG_VDD 0x15
+
+
+/*
+ * Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ * Fixing this is just not worth it.
+ */
+
+#define RAW_FROM_REG(val) val
+
+#define BOOL_FROM_REG(val) ((val)?0:1)
+#define BOOL_TO_REG(val) ((val)?0:1)
+
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0? \
+ (val)-500:(val)+500)/1000)+119),0,255))
+#define TEMP_FROM_REG(val) (((val) - 119) * 1000)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+ long rpmdiv;
+ if (rpm == 0)
+ return 0;
+ rpmdiv = SENSORS_LIMIT(rpm, 1, 1920000) * div;
+ return SENSORS_LIMIT((960000 + rpmdiv / 2) / rpmdiv, 1, 255);
+}
+#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (960000/((val)*(div))))
+
+#define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255))
+#define IN_FROM_REG(val) ((val)*19)
+
+#define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255))
+#define VDD_FROM_REG(val) (((val)*95+2)/4)
+
+#define DIV_TO_REG(val) ((val)==4?2:(val)==2?1:(val)==1?0:3)
+#define DIV_FROM_REG(val) (1 << (val))
+
+#define BEEP_MASK_TO_REG(val) ((val) & 0x7f & data->alarm_mask)
+#define BEEP_MASK_FROM_REG(val) ((val) & 0x7f)
+
+/* Each client has this additional data */
+struct gl518_data {
+ struct i2c_client client;
+ enum chips type;
+
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u8 voltage_in[4]; /* Register values; [0] = VDD */
+ u8 voltage_min[4]; /* Register values; [0] = VDD */
+ u8 voltage_max[4]; /* Register values; [0] = VDD */
+ u8 iter_voltage_in[4]; /* Register values; [0] = VDD */
+ u8 fan_in[2];
+ u8 fan_min[2];
+ u8 fan_div[2]; /* Register encoding, shifted right */
+ u8 fan_auto1; /* Boolean */
+ u8 temp_in; /* Register values */
+ u8 temp_max; /* Register values */
+ u8 temp_hyst; /* Register values */
+ u8 alarms; /* Register value */
+ u8 alarm_mask; /* Register value */
+ u8 beep_mask; /* Register value */
+ u8 beep_enable; /* Boolean */
+};
+
+static int gl518_attach_adapter(struct i2c_adapter *adapter);
+static int gl518_detect(struct i2c_adapter *adapter, int address, int kind);
+static void gl518_init_client(struct i2c_client *client);
+static int gl518_detach_client(struct i2c_client *client);
+static int gl518_read_value(struct i2c_client *client, u8 reg);
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
+static struct gl518_data *gl518_update_device(struct device *dev);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver gl518_driver = {
+ .owner = THIS_MODULE,
+ .name = "gl518sm",
+ .id = I2C_DRIVERID_GL518,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = gl518_attach_adapter,
+ .detach_client = gl518_detach_client,
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show(type, suffix, value) \
+static ssize_t show_##suffix(struct device *dev, char *buf) \
+{ \
+ struct gl518_data *data = gl518_update_device(dev); \
+ return sprintf(buf, "%d\n", type##_FROM_REG(data->value)); \
+}
+
+#define show_fan(suffix, value, index) \
+static ssize_t show_##suffix(struct device *dev, char *buf) \
+{ \
+ struct gl518_data *data = gl518_update_device(dev); \
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[index], \
+ DIV_FROM_REG(data->fan_div[index]))); \
+}
+
+show(TEMP, temp_input1, temp_in);
+show(TEMP, temp_max1, temp_max);
+show(TEMP, temp_hyst1, temp_hyst);
+show(BOOL, fan_auto1, fan_auto1);
+show_fan(fan_input1, fan_in, 0);
+show_fan(fan_input2, fan_in, 1);
+show_fan(fan_min1, fan_min, 0);
+show_fan(fan_min2, fan_min, 1);
+show(DIV, fan_div1, fan_div[0]);
+show(DIV, fan_div2, fan_div[1]);
+show(VDD, in_input0, voltage_in[0]);
+show(IN, in_input1, voltage_in[1]);
+show(IN, in_input2, voltage_in[2]);
+show(IN, in_input3, voltage_in[3]);
+show(VDD, in_min0, voltage_min[0]);
+show(IN, in_min1, voltage_min[1]);
+show(IN, in_min2, voltage_min[2]);
+show(IN, in_min3, voltage_min[3]);
+show(VDD, in_max0, voltage_max[0]);
+show(IN, in_max1, voltage_max[1]);
+show(IN, in_max2, voltage_max[2]);
+show(IN, in_max3, voltage_max[3]);
+show(RAW, alarms, alarms);
+show(BOOL, beep_enable, beep_enable);
+show(BEEP_MASK, beep_mask, beep_mask);
+
+#define set(type, suffix, value, reg) \
+static ssize_t set_##suffix(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct gl518_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = type##_TO_REG(val); \
+ gl518_write_value(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+
+#define set_bits(type, suffix, value, reg, mask, shift) \
+static ssize_t set_##suffix(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct gl518_data *data = i2c_get_clientdata(client); \
+ int regvalue; \
+ unsigned long val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ regvalue = gl518_read_value(client, reg); \
+ data->value = type##_TO_REG(val); \
+ regvalue = (regvalue & ~mask) | (data->value << shift); \
+ gl518_write_value(client, reg, regvalue); \
+ up(&data->update_lock); \
+ return count; \
+}
+
+#define set_low(type, suffix, value, reg) \
+ set_bits(type, suffix, value, reg, 0x00ff, 0)
+#define set_high(type, suffix, value, reg) \
+ set_bits(type, suffix, value, reg, 0xff00, 8)
+
+set(TEMP, temp_max1, temp_max, GL518_REG_TEMP_MAX);
+set(TEMP, temp_hyst1, temp_hyst, GL518_REG_TEMP_HYST);
+set_bits(BOOL, fan_auto1, fan_auto1, GL518_REG_MISC, 0x08, 3);
+set_bits(DIV, fan_div1, fan_div[0], GL518_REG_MISC, 0xc0, 6);
+set_bits(DIV, fan_div2, fan_div[1], GL518_REG_MISC, 0x30, 4);
+set_low(VDD, in_min0, voltage_min[0], GL518_REG_VDD_LIMIT);
+set_low(IN, in_min1, voltage_min[1], GL518_REG_VIN1_LIMIT);
+set_low(IN, in_min2, voltage_min[2], GL518_REG_VIN2_LIMIT);
+set_low(IN, in_min3, voltage_min[3], GL518_REG_VIN3_LIMIT);
+set_high(VDD, in_max0, voltage_max[0], GL518_REG_VDD_LIMIT);
+set_high(IN, in_max1, voltage_max[1], GL518_REG_VIN1_LIMIT);
+set_high(IN, in_max2, voltage_max[2], GL518_REG_VIN2_LIMIT);
+set_high(IN, in_max3, voltage_max[3], GL518_REG_VIN3_LIMIT);
+set_bits(BOOL, beep_enable, beep_enable, GL518_REG_CONF, 0x04, 2);
+set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM);
+
+static ssize_t set_fan_min1(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gl518_data *data = i2c_get_clientdata(client);
+ int regvalue;
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+ data->fan_min[0] = FAN_TO_REG(val,
+ DIV_FROM_REG(data->fan_div[0]));
+ regvalue = (regvalue & 0x00ff) | (data->fan_min[0] << 8);
+ gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
+
+ data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+ if (data->fan_min[0] == 0)
+ data->alarm_mask &= ~0x20;
+ else
+ data->alarm_mask |= 0x20;
+ data->beep_mask &= data->alarm_mask;
+ gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
+
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_fan_min2(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gl518_data *data = i2c_get_clientdata(client);
+ int regvalue;
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+ data->fan_min[1] = FAN_TO_REG(val,
+ DIV_FROM_REG(data->fan_div[1]));
+ regvalue = (regvalue & 0xff00) | data->fan_min[1];
+ gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
+
+ data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+ if (data->fan_min[1] == 0)
+ data->alarm_mask &= ~0x40;
+ else
+ data->alarm_mask |= 0x40;
+ data->beep_mask &= data->alarm_mask;
+ gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
+
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR|S_IRUGO, show_temp_max1, set_temp_max1);
+static DEVICE_ATTR(temp1_max_hyst, S_IWUSR|S_IRUGO,
+ show_temp_hyst1, set_temp_hyst1);
+static DEVICE_ATTR(fan1_auto, S_IWUSR|S_IRUGO, show_fan_auto1, set_fan_auto1);
+static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input1, NULL);
+static DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input2, NULL);
+static DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO, show_fan_min1, set_fan_min1);
+static DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO, show_fan_min2, set_fan_min2);
+static DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO, show_fan_div1, set_fan_div1);
+static DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO, show_fan_div2, set_fan_div2);
+static DEVICE_ATTR(in0_input, S_IRUGO, show_in_input0, NULL);
+static DEVICE_ATTR(in1_input, S_IRUGO, show_in_input1, NULL);
+static DEVICE_ATTR(in2_input, S_IRUGO, show_in_input2, NULL);
+static DEVICE_ATTR(in3_input, S_IRUGO, show_in_input3, NULL);
+static DEVICE_ATTR(in0_min, S_IWUSR|S_IRUGO, show_in_min0, set_in_min0);
+static DEVICE_ATTR(in1_min, S_IWUSR|S_IRUGO, show_in_min1, set_in_min1);
+static DEVICE_ATTR(in2_min, S_IWUSR|S_IRUGO, show_in_min2, set_in_min2);
+static DEVICE_ATTR(in3_min, S_IWUSR|S_IRUGO, show_in_min3, set_in_min3);
+static DEVICE_ATTR(in0_max, S_IWUSR|S_IRUGO, show_in_max0, set_in_max0);
+static DEVICE_ATTR(in1_max, S_IWUSR|S_IRUGO, show_in_max1, set_in_max1);
+static DEVICE_ATTR(in2_max, S_IWUSR|S_IRUGO, show_in_max2, set_in_max2);
+static DEVICE_ATTR(in3_max, S_IWUSR|S_IRUGO, show_in_max3, set_in_max3);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR(beep_enable, S_IWUSR|S_IRUGO,
+ show_beep_enable, set_beep_enable);
+static DEVICE_ATTR(beep_mask, S_IWUSR|S_IRUGO,
+ show_beep_mask, set_beep_mask);
+
+/*
+ * Real code
+ */
+
+static int gl518_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, gl518_detect);
+}
+
+static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i;
+ struct i2c_client *new_client;
+ struct gl518_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_SMBUS_WORD_DATA))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access gl518_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct gl518_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct gl518_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &gl518_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+
+ if (kind < 0) {
+ if ((gl518_read_value(new_client, GL518_REG_CHIP_ID) != 0x80)
+ || (gl518_read_value(new_client, GL518_REG_CONF) & 0x80))
+ goto exit_free;
+ }
+
+ /* Determine the chip type. */
+ if (kind <= 0) {
+ i = gl518_read_value(new_client, GL518_REG_REVISION);
+ if (i == 0x00) {
+ kind = gl518sm_r00;
+ } else if (i == 0x80) {
+ kind = gl518sm_r80;
+ } else {
+ if (kind <= 0)
+ dev_info(&adapter->dev,
+ "Ignoring 'force' parameter for unknown "
+ "chip at adapter %d, address 0x%02x\n",
+ i2c_adapter_id(adapter), address);
+ goto exit_free;
+ }
+ }
+
+ /* Fill in the remaining client fields */
+ strlcpy(new_client->name, "gl518sm", I2C_NAME_SIZE);
+ data->type = kind;
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the GL518SM chip */
+ data->alarm_mask = 0xff;
+ data->voltage_in[0]=data->voltage_in[1]=data->voltage_in[2]=0;
+ gl518_init_client((struct i2c_client *) new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_fan1_auto);
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ device_create_file(&new_client->dev, &dev_attr_beep_enable);
+ device_create_file(&new_client->dev, &dev_attr_beep_mask);
+
+ return 0;
+
+/* OK, this is not exactly good programming practice, usually. But it is
+ very code-efficient in this case. */
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+
+/* Called when we have found a new GL518SM.
+ Note that we preserve D4:NoFan2 and D2:beep_enable. */
+static void gl518_init_client(struct i2c_client *client)
+{
+ /* Make sure we leave D7:Reset untouched */
+ u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f;
+
+ /* Comparator mode (D3=0), standby mode (D6=0) */
+ gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37));
+
+ /* Never interrupts */
+ gl518_write_value(client, GL518_REG_MASK, 0x00);
+
+ /* Clear status register (D5=1), start (D6=1) */
+ gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue);
+ gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
+}
+
+static int gl518_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
+ GL518 uses a high-byte first convention, which is exactly opposite to
+ the usual practice. */
+static int gl518_read_value(struct i2c_client *client, u8 reg)
+{
+ if ((reg >= 0x07) && (reg <= 0x0c))
+ return swab16(i2c_smbus_read_word_data(client, reg));
+ else
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
+ GL518 uses a high-byte first convention, which is exactly opposite to
+ the usual practice. */
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+ if ((reg >= 0x07) && (reg <= 0x0c))
+ return i2c_smbus_write_word_data(client, reg, swab16(value));
+ else
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static struct gl518_data *gl518_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gl518_data *data = i2c_get_clientdata(client);
+ int val;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ dev_dbg(&client->dev, "Starting gl518 update\n");
+
+ data->alarms = gl518_read_value(client, GL518_REG_INT);
+ data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+
+ val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
+ data->voltage_min[0] = val & 0xff;
+ data->voltage_max[0] = (val >> 8) & 0xff;
+ val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
+ data->voltage_min[1] = val & 0xff;
+ data->voltage_max[1] = (val >> 8) & 0xff;
+ val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
+ data->voltage_min[2] = val & 0xff;
+ data->voltage_max[2] = (val >> 8) & 0xff;
+ val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
+ data->voltage_min[3] = val & 0xff;
+ data->voltage_max[3] = (val >> 8) & 0xff;
+
+ val = gl518_read_value(client, GL518_REG_FAN_COUNT);
+ data->fan_in[0] = (val >> 8) & 0xff;
+ data->fan_in[1] = val & 0xff;
+
+ val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+ data->fan_min[0] = (val >> 8) & 0xff;
+ data->fan_min[1] = val & 0xff;
+
+ data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
+ data->temp_max =
+ gl518_read_value(client, GL518_REG_TEMP_MAX);
+ data->temp_hyst =
+ gl518_read_value(client, GL518_REG_TEMP_HYST);
+
+ val = gl518_read_value(client, GL518_REG_MISC);
+ data->fan_div[0] = (val >> 6) & 0x03;
+ data->fan_div[1] = (val >> 4) & 0x03;
+ data->fan_auto1 = (val >> 3) & 0x01;
+
+ data->alarms &= data->alarm_mask;
+
+ val = gl518_read_value(client, GL518_REG_CONF);
+ data->beep_enable = (val >> 2) & 1;
+
+ if (data->type != gl518sm_r00) {
+ data->voltage_in[0] =
+ gl518_read_value(client, GL518_REG_VDD);
+ data->voltage_in[1] =
+ gl518_read_value(client, GL518_REG_VIN1);
+ data->voltage_in[2] =
+ gl518_read_value(client, GL518_REG_VIN2);
+ }
+ data->voltage_in[3] =
+ gl518_read_value(client, GL518_REG_VIN3);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_gl518sm_init(void)
+{
+ return i2c_add_driver(&gl518_driver);
+}
+
+static void __exit sensors_gl518sm_exit(void)
+{
+ i2c_del_driver(&gl518_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+ "Kyosti Malkki <kmalkki@cc.hut.fi> and "
+ "Hong-Gunn Chew <hglinux@gunnet.org>");
+MODULE_DESCRIPTION("GL518SM driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_gl518sm_init);
+module_exit(sensors_gl518sm_exit);
diff --git a/drivers/i2c/chips/gl520sm.c b/drivers/i2c/chips/gl520sm.c
new file mode 100644
index 0000000..3fd17e4
--- /dev/null
+++ b/drivers/i2c/chips/gl520sm.c
@@ -0,0 +1,769 @@
+/*
+ gl520sm.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>,
+ Kyösti Mälkki <kmalkki@cc.hut.fi>
+ Copyright (c) 2005 Maarten Deprez <maartendeprez@users.sourceforge.net>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+
+/* Type of the extra sensor */
+static unsigned short extra_sensor_type;
+module_param(extra_sensor_type, ushort, 0);
+MODULE_PARM_DESC(extra_sensor_type, "Type of extra sensor (0=autodetect, 1=temperature, 2=voltage)");
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(gl520sm);
+
+/* Many GL520 constants specified below
+One of the inputs can be configured as either temp or voltage.
+That's why _TEMP2 and _IN4 access the same register
+*/
+
+/* The GL520 registers */
+#define GL520_REG_CHIP_ID 0x00
+#define GL520_REG_REVISION 0x01
+#define GL520_REG_CONF 0x03
+#define GL520_REG_MASK 0x11
+
+#define GL520_REG_VID_INPUT 0x02
+
+#define GL520_REG_IN0_INPUT 0x15
+#define GL520_REG_IN0_LIMIT 0x0c
+#define GL520_REG_IN0_MIN GL520_REG_IN0_LIMIT
+#define GL520_REG_IN0_MAX GL520_REG_IN0_LIMIT
+
+#define GL520_REG_IN1_INPUT 0x14
+#define GL520_REG_IN1_LIMIT 0x09
+#define GL520_REG_IN1_MIN GL520_REG_IN1_LIMIT
+#define GL520_REG_IN1_MAX GL520_REG_IN1_LIMIT
+
+#define GL520_REG_IN2_INPUT 0x13
+#define GL520_REG_IN2_LIMIT 0x0a
+#define GL520_REG_IN2_MIN GL520_REG_IN2_LIMIT
+#define GL520_REG_IN2_MAX GL520_REG_IN2_LIMIT
+
+#define GL520_REG_IN3_INPUT 0x0d
+#define GL520_REG_IN3_LIMIT 0x0b
+#define GL520_REG_IN3_MIN GL520_REG_IN3_LIMIT
+#define GL520_REG_IN3_MAX GL520_REG_IN3_LIMIT
+
+#define GL520_REG_IN4_INPUT 0x0e
+#define GL520_REG_IN4_MAX 0x17
+#define GL520_REG_IN4_MIN 0x18
+
+#define GL520_REG_TEMP1_INPUT 0x04
+#define GL520_REG_TEMP1_MAX 0x05
+#define GL520_REG_TEMP1_MAX_HYST 0x06
+
+#define GL520_REG_TEMP2_INPUT 0x0e
+#define GL520_REG_TEMP2_MAX 0x17
+#define GL520_REG_TEMP2_MAX_HYST 0x18
+
+#define GL520_REG_FAN_INPUT 0x07
+#define GL520_REG_FAN_MIN 0x08
+#define GL520_REG_FAN_DIV 0x0f
+#define GL520_REG_FAN_OFF GL520_REG_FAN_DIV
+
+#define GL520_REG_ALARMS 0x12
+#define GL520_REG_BEEP_MASK 0x10
+#define GL520_REG_BEEP_ENABLE GL520_REG_CONF
+
+/*
+ * Function declarations
+ */
+
+static int gl520_attach_adapter(struct i2c_adapter *adapter);
+static int gl520_detect(struct i2c_adapter *adapter, int address, int kind);
+static void gl520_init_client(struct i2c_client *client);
+static int gl520_detach_client(struct i2c_client *client);
+static int gl520_read_value(struct i2c_client *client, u8 reg);
+static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value);
+static struct gl520_data *gl520_update_device(struct device *dev);
+
+/* Driver data */
+static struct i2c_driver gl520_driver = {
+ .owner = THIS_MODULE,
+ .name = "gl520sm",
+ .id = I2C_DRIVERID_GL520,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = gl520_attach_adapter,
+ .detach_client = gl520_detach_client,
+};
+
+/* Client data */
+struct gl520_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until the following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ u8 vid;
+ u8 vrm;
+ u8 in_input[5]; /* [0] = VVD */
+ u8 in_min[5]; /* [0] = VDD */
+ u8 in_max[5]; /* [0] = VDD */
+ u8 fan_input[2];
+ u8 fan_min[2];
+ u8 fan_div[2];
+ u8 fan_off;
+ u8 temp_input[2];
+ u8 temp_max[2];
+ u8 temp_max_hyst[2];
+ u8 alarms;
+ u8 beep_enable;
+ u8 beep_mask;
+ u8 alarm_mask;
+ u8 two_temps;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define sysfs_r(type, n, item, reg) \
+static ssize_t get_##type##item (struct gl520_data *, char *, int); \
+static ssize_t get_##type##n##item (struct device *, char *); \
+static ssize_t get_##type##n##item (struct device *dev, char *buf) \
+{ \
+ struct gl520_data *data = gl520_update_device(dev); \
+ return get_##type##item(data, buf, (n)); \
+}
+
+#define sysfs_w(type, n, item, reg) \
+static ssize_t set_##type##item (struct i2c_client *, struct gl520_data *, const char *, size_t, int, int); \
+static ssize_t set_##type##n##item (struct device *, const char *, size_t); \
+static ssize_t set_##type##n##item (struct device *dev, const char *buf, size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct gl520_data *data = i2c_get_clientdata(client); \
+ return set_##type##item(client, data, buf, count, (n), reg); \
+}
+
+#define sysfs_rw_n(type, n, item, reg) \
+sysfs_r(type, n, item, reg) \
+sysfs_w(type, n, item, reg) \
+static DEVICE_ATTR(type##n##item, S_IRUGO | S_IWUSR, get_##type##n##item, set_##type##n##item);
+
+#define sysfs_ro_n(type, n, item, reg) \
+sysfs_r(type, n, item, reg) \
+static DEVICE_ATTR(type##n##item, S_IRUGO, get_##type##n##item, NULL);
+
+#define sysfs_rw(type, item, reg) \
+sysfs_r(type, 0, item, reg) \
+sysfs_w(type, 0, item, reg) \
+static DEVICE_ATTR(type##item, S_IRUGO | S_IWUSR, get_##type##0##item, set_##type##0##item);
+
+#define sysfs_ro(type, item, reg) \
+sysfs_r(type, 0, item, reg) \
+static DEVICE_ATTR(type##item, S_IRUGO, get_##type##0##item, NULL);
+
+
+#define sysfs_vid(n) \
+sysfs_ro_n(cpu, n, _vid, GL520_REG_VID_INPUT)
+
+#define device_create_file_vid(client, n) \
+device_create_file(&client->dev, &dev_attr_cpu##n##_vid)
+
+#define sysfs_in(n) \
+sysfs_ro_n(in, n, _input, GL520_REG_IN##n##INPUT) \
+sysfs_rw_n(in, n, _min, GL520_REG_IN##n##_MIN) \
+sysfs_rw_n(in, n, _max, GL520_REG_IN##n##_MAX) \
+
+#define device_create_file_in(client, n) \
+({device_create_file(&client->dev, &dev_attr_in##n##_input); \
+device_create_file(&client->dev, &dev_attr_in##n##_min); \
+device_create_file(&client->dev, &dev_attr_in##n##_max);})
+
+#define sysfs_fan(n) \
+sysfs_ro_n(fan, n, _input, GL520_REG_FAN_INPUT) \
+sysfs_rw_n(fan, n, _min, GL520_REG_FAN_MIN) \
+sysfs_rw_n(fan, n, _div, GL520_REG_FAN_DIV)
+
+#define device_create_file_fan(client, n) \
+({device_create_file(&client->dev, &dev_attr_fan##n##_input); \
+device_create_file(&client->dev, &dev_attr_fan##n##_min); \
+device_create_file(&client->dev, &dev_attr_fan##n##_div);})
+
+#define sysfs_fan_off(n) \
+sysfs_rw_n(fan, n, _off, GL520_REG_FAN_OFF) \
+
+#define device_create_file_fan_off(client, n) \
+device_create_file(&client->dev, &dev_attr_fan##n##_off)
+
+#define sysfs_temp(n) \
+sysfs_ro_n(temp, n, _input, GL520_REG_TEMP##n##_INPUT) \
+sysfs_rw_n(temp, n, _max, GL520_REG_TEMP##n##_MAX) \
+sysfs_rw_n(temp, n, _max_hyst, GL520_REG_TEMP##n##_MAX_HYST)
+
+#define device_create_file_temp(client, n) \
+({device_create_file(&client->dev, &dev_attr_temp##n##_input); \
+device_create_file(&client->dev, &dev_attr_temp##n##_max); \
+device_create_file(&client->dev, &dev_attr_temp##n##_max_hyst);})
+
+#define sysfs_alarms() \
+sysfs_ro(alarms, , GL520_REG_ALARMS) \
+sysfs_rw(beep_enable, , GL520_REG_BEEP_ENABLE) \
+sysfs_rw(beep_mask, , GL520_REG_BEEP_MASK)
+
+#define device_create_file_alarms(client) \
+({device_create_file(&client->dev, &dev_attr_alarms); \
+device_create_file(&client->dev, &dev_attr_beep_enable); \
+device_create_file(&client->dev, &dev_attr_beep_mask);})
+
+
+sysfs_vid(0)
+
+sysfs_in(0)
+sysfs_in(1)
+sysfs_in(2)
+sysfs_in(3)
+sysfs_in(4)
+
+sysfs_fan(1)
+sysfs_fan(2)
+sysfs_fan_off(1)
+
+sysfs_temp(1)
+sysfs_temp(2)
+
+sysfs_alarms()
+
+
+static ssize_t get_cpu_vid(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
+}
+
+#define VDD_FROM_REG(val) (((val)*95+2)/4)
+#define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255))
+
+#define IN_FROM_REG(val) ((val)*19)
+#define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255))
+
+static ssize_t get_in_input(struct gl520_data *data, char *buf, int n)
+{
+ u8 r = data->in_input[n];
+
+ if (n == 0)
+ return sprintf(buf, "%d\n", VDD_FROM_REG(r));
+ else
+ return sprintf(buf, "%d\n", IN_FROM_REG(r));
+}
+
+static ssize_t get_in_min(struct gl520_data *data, char *buf, int n)
+{
+ u8 r = data->in_min[n];
+
+ if (n == 0)
+ return sprintf(buf, "%d\n", VDD_FROM_REG(r));
+ else
+ return sprintf(buf, "%d\n", IN_FROM_REG(r));
+}
+
+static ssize_t get_in_max(struct gl520_data *data, char *buf, int n)
+{
+ u8 r = data->in_max[n];
+
+ if (n == 0)
+ return sprintf(buf, "%d\n", VDD_FROM_REG(r));
+ else
+ return sprintf(buf, "%d\n", IN_FROM_REG(r));
+}
+
+static ssize_t set_in_min(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ long v = simple_strtol(buf, NULL, 10);
+ u8 r;
+
+ down(&data->update_lock);
+
+ if (n == 0)
+ r = VDD_TO_REG(v);
+ else
+ r = IN_TO_REG(v);
+
+ data->in_min[n] = r;
+
+ if (n < 4)
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff) | r);
+ else
+ gl520_write_value(client, reg, r);
+
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_in_max(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ long v = simple_strtol(buf, NULL, 10);
+ u8 r;
+
+ if (n == 0)
+ r = VDD_TO_REG(v);
+ else
+ r = IN_TO_REG(v);
+
+ down(&data->update_lock);
+
+ data->in_max[n] = r;
+
+ if (n < 4)
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff00) | (r << 8));
+ else
+ gl520_write_value(client, reg, r);
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define DIV_FROM_REG(val) (1 << (val))
+#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val) << (div))))
+#define FAN_TO_REG(val,div) ((val)<=0?0:SENSORS_LIMIT((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255));
+
+static ssize_t get_fan_input(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_input[n - 1], data->fan_div[n - 1]));
+}
+
+static ssize_t get_fan_min(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[n - 1], data->fan_div[n - 1]));
+}
+
+static ssize_t get_fan_div(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n - 1]));
+}
+
+static ssize_t get_fan_off(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", data->fan_off);
+}
+
+static ssize_t set_fan_min(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+ u8 r;
+
+ down(&data->update_lock);
+ r = FAN_TO_REG(v, data->fan_div[n - 1]);
+ data->fan_min[n - 1] = r;
+
+ if (n == 1)
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff00) | (r << 8));
+ else
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff) | r);
+
+ data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK);
+ if (data->fan_min[n - 1] == 0)
+ data->alarm_mask &= (n == 1) ? ~0x20 : ~0x40;
+ else
+ data->alarm_mask |= (n == 1) ? 0x20 : 0x40;
+ data->beep_mask &= data->alarm_mask;
+ gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask);
+
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_fan_div(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+ u8 r;
+
+ switch (v) {
+ case 1: r = 0; break;
+ case 2: r = 1; break;
+ case 4: r = 2; break;
+ case 8: r = 3; break;
+ default:
+ dev_err(&client->dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", v);
+ return -EINVAL;
+ }
+
+ down(&data->update_lock);
+ data->fan_div[n - 1] = r;
+
+ if (n == 1)
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xc0) | (r << 6));
+ else
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x30) | (r << 4));
+
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_fan_off(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ u8 r = simple_strtoul(buf, NULL, 10)?1:0;
+
+ down(&data->update_lock);
+ data->fan_off = r;
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x0c) | (r << 2));
+ up(&data->update_lock);
+ return count;
+}
+
+#define TEMP_FROM_REG(val) (((val) - 130) * 1000)
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0?(val)-500:(val)+500) / 1000)+130),0,255))
+
+static ssize_t get_temp_input(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_input[n - 1]));
+}
+
+static ssize_t get_temp_max(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[n - 1]));
+}
+
+static ssize_t get_temp_max_hyst(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[n - 1]));
+}
+
+static ssize_t set_temp_max(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ long v = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_max[n - 1] = TEMP_TO_REG(v);;
+ gl520_write_value(client, reg, data->temp_max[n - 1]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_temp_max_hyst(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ long v = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_max_hyst[n - 1] = TEMP_TO_REG(v);
+ gl520_write_value(client, reg, data->temp_max_hyst[n - 1]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t get_alarms(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t get_beep_enable(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", data->beep_enable);
+}
+
+static ssize_t get_beep_mask(struct gl520_data *data, char *buf, int n)
+{
+ return sprintf(buf, "%d\n", data->beep_mask);
+}
+
+static ssize_t set_beep_enable(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ u8 r = simple_strtoul(buf, NULL, 10)?0:1;
+
+ down(&data->update_lock);
+ data->beep_enable = !r;
+ gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x04) | (r << 2));
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_beep_mask(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg)
+{
+ u8 r = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ r &= data->alarm_mask;
+ data->beep_mask = r;
+ gl520_write_value(client, reg, r);
+ up(&data->update_lock);
+ return count;
+}
+
+
+/*
+ * Real code
+ */
+
+static int gl520_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, gl520_detect);
+}
+
+static int gl520_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct gl520_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_SMBUS_WORD_DATA))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access gl520_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct gl520_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct gl520_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &gl520_driver;
+ new_client->flags = 0;
+
+ /* Determine the chip type. */
+ if (kind < 0) {
+ if ((gl520_read_value(new_client, GL520_REG_CHIP_ID) != 0x20) ||
+ ((gl520_read_value(new_client, GL520_REG_REVISION) & 0x7f) != 0x00) ||
+ ((gl520_read_value(new_client, GL520_REG_CONF) & 0x80) != 0x00)) {
+ dev_dbg(&new_client->dev, "Unknown chip type, skipping\n");
+ goto exit_free;
+ }
+ }
+
+ /* Fill in the remaining client fields */
+ strlcpy(new_client->name, "gl520sm", I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the GL520SM chip */
+ gl520_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file_vid(new_client, 0);
+
+ device_create_file_in(new_client, 0);
+ device_create_file_in(new_client, 1);
+ device_create_file_in(new_client, 2);
+ device_create_file_in(new_client, 3);
+ if (!data->two_temps)
+ device_create_file_in(new_client, 4);
+
+ device_create_file_fan(new_client, 1);
+ device_create_file_fan(new_client, 2);
+ device_create_file_fan_off(new_client, 1);
+
+ device_create_file_temp(new_client, 1);
+ if (data->two_temps)
+ device_create_file_temp(new_client, 2);
+
+ device_create_file_alarms(new_client);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+
+/* Called when we have found a new GL520SM. */
+static void gl520_init_client(struct i2c_client *client)
+{
+ struct gl520_data *data = i2c_get_clientdata(client);
+ u8 oldconf, conf;
+
+ conf = oldconf = gl520_read_value(client, GL520_REG_CONF);
+
+ data->alarm_mask = 0xff;
+ data->vrm = i2c_which_vrm();
+
+ if (extra_sensor_type == 1)
+ conf &= ~0x10;
+ else if (extra_sensor_type == 2)
+ conf |= 0x10;
+ data->two_temps = !(conf & 0x10);
+
+ /* If IRQ# is disabled, we can safely force comparator mode */
+ if (!(conf & 0x20))
+ conf &= 0xf7;
+
+ /* Enable monitoring if needed */
+ conf |= 0x40;
+
+ if (conf != oldconf)
+ gl520_write_value(client, GL520_REG_CONF, conf);
+
+ gl520_update_device(&(client->dev));
+
+ if (data->fan_min[0] == 0)
+ data->alarm_mask &= ~0x20;
+ if (data->fan_min[1] == 0)
+ data->alarm_mask &= ~0x40;
+
+ data->beep_mask &= data->alarm_mask;
+ gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask);
+}
+
+static int gl520_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+
+/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
+ GL520 uses a high-byte first convention */
+static int gl520_read_value(struct i2c_client *client, u8 reg)
+{
+ if ((reg >= 0x07) && (reg <= 0x0c))
+ return swab16(i2c_smbus_read_word_data(client, reg));
+ else
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+ if ((reg >= 0x07) && (reg <= 0x0c))
+ return i2c_smbus_write_word_data(client, reg, swab16(value));
+ else
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+
+static struct gl520_data *gl520_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gl520_data *data = i2c_get_clientdata(client);
+ int val;
+
+ down(&data->update_lock);
+
+ if ((jiffies - data->last_updated > 2 * HZ) ||
+ (jiffies < data->last_updated) || !data->valid) {
+
+ dev_dbg(&client->dev, "Starting gl520sm update\n");
+
+ data->alarms = gl520_read_value(client, GL520_REG_ALARMS);
+ data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK);
+ data->vid = gl520_read_value(client, GL520_REG_VID_INPUT) & 0x1f;
+
+ val = gl520_read_value(client, GL520_REG_IN0_LIMIT);
+ data->in_min[0] = val & 0xff;
+ data->in_max[0] = (val >> 8) & 0xff;
+ val = gl520_read_value(client, GL520_REG_IN1_LIMIT);
+ data->in_min[1] = val & 0xff;
+ data->in_max[1] = (val >> 8) & 0xff;
+ val = gl520_read_value(client, GL520_REG_IN2_LIMIT);
+ data->in_min[2] = val & 0xff;
+ data->in_max[2] = (val >> 8) & 0xff;
+ val = gl520_read_value(client, GL520_REG_IN3_LIMIT);
+ data->in_min[3] = val & 0xff;
+ data->in_max[3] = (val >> 8) & 0xff;
+
+ val = gl520_read_value(client, GL520_REG_FAN_INPUT);
+ data->fan_input[0] = (val >> 8) & 0xff;
+ data->fan_input[1] = val & 0xff;
+
+ val = gl520_read_value(client, GL520_REG_FAN_MIN);
+ data->fan_min[0] = (val >> 8) & 0xff;
+ data->fan_min[1] = val & 0xff;
+
+ data->temp_input[0] = gl520_read_value(client, GL520_REG_TEMP1_INPUT);
+ data->temp_max[0] = gl520_read_value(client, GL520_REG_TEMP1_MAX);
+ data->temp_max_hyst[0] = gl520_read_value(client, GL520_REG_TEMP1_MAX_HYST);
+
+ val = gl520_read_value(client, GL520_REG_FAN_DIV);
+ data->fan_div[0] = (val >> 6) & 0x03;
+ data->fan_div[1] = (val >> 4) & 0x03;
+ data->fan_off = (val >> 2) & 0x01;
+
+ data->alarms &= data->alarm_mask;
+
+ val = gl520_read_value(client, GL520_REG_CONF);
+ data->beep_enable = !((val >> 2) & 1);
+
+ data->in_input[0] = gl520_read_value(client, GL520_REG_IN0_INPUT);
+ data->in_input[1] = gl520_read_value(client, GL520_REG_IN1_INPUT);
+ data->in_input[2] = gl520_read_value(client, GL520_REG_IN2_INPUT);
+ data->in_input[3] = gl520_read_value(client, GL520_REG_IN3_INPUT);
+
+ /* Temp1 and Vin4 are the same input */
+ if (data->two_temps) {
+ data->temp_input[1] = gl520_read_value(client, GL520_REG_TEMP2_INPUT);
+ data->temp_max[1] = gl520_read_value(client, GL520_REG_TEMP2_MAX);
+ data->temp_max_hyst[1] = gl520_read_value(client, GL520_REG_TEMP2_MAX_HYST);
+ } else {
+ data->in_input[4] = gl520_read_value(client, GL520_REG_IN4_INPUT);
+ data->in_min[4] = gl520_read_value(client, GL520_REG_IN4_MIN);
+ data->in_max[4] = gl520_read_value(client, GL520_REG_IN4_MAX);
+ }
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+
+static int __init sensors_gl520sm_init(void)
+{
+ return i2c_add_driver(&gl520_driver);
+}
+
+static void __exit sensors_gl520sm_exit(void)
+{
+ i2c_del_driver(&gl520_driver);
+}
+
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+ "Kyösti Mälkki <kmalkki@cc.hut.fi>, "
+ "Maarten Deprez <maartendeprez@users.sourceforge.net>");
+MODULE_DESCRIPTION("GL520SM driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_gl520sm_init);
+module_exit(sensors_gl520sm_exit);
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
new file mode 100644
index 0000000..7f29a8a
--- /dev/null
+++ b/drivers/i2c/chips/isp1301_omap.c
@@ -0,0 +1,1658 @@
+/*
+ * isp1301_omap - ISP 1301 USB transceiver, talking to OMAP OTG controller
+ *
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2004 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#undef DEBUG
+#undef VERBOSE
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/usb_ch9.h>
+#include <linux/usb_gadget.h>
+#include <linux/usb.h>
+#include <linux/usb_otg.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+
+#include <asm/irq.h>
+#include <asm/arch/usb.h>
+
+
+#ifndef DEBUG
+#undef VERBOSE
+#endif
+
+
+#define DRIVER_VERSION "24 August 2004"
+#define DRIVER_NAME (isp1301_driver.name)
+
+MODULE_DESCRIPTION("ISP1301 USB OTG Transceiver Driver");
+MODULE_LICENSE("GPL");
+
+struct isp1301 {
+ struct otg_transceiver otg;
+ struct i2c_client client;
+ void (*i2c_release)(struct device *dev);
+
+ int irq;
+
+ u32 last_otg_ctrl;
+ unsigned working:1;
+
+ struct timer_list timer;
+
+ /* use keventd context to change the state for us */
+ struct work_struct work;
+
+ unsigned long todo;
+# define WORK_UPDATE_ISP 0 /* update ISP from OTG */
+# define WORK_UPDATE_OTG 1 /* update OTG from ISP */
+# define WORK_HOST_RESUME 4 /* resume host */
+# define WORK_TIMER 6 /* timer fired */
+# define WORK_STOP 7 /* don't resubmit */
+};
+
+
+/* bits in OTG_CTRL_REG */
+
+#define OTG_XCEIV_OUTPUTS \
+ (OTG_ASESSVLD|OTG_BSESSEND|OTG_BSESSVLD|OTG_VBUSVLD|OTG_ID)
+#define OTG_XCEIV_INPUTS \
+ (OTG_PULLDOWN|OTG_PULLUP|OTG_DRV_VBUS|OTG_PD_VBUS|OTG_PU_VBUS|OTG_PU_ID)
+#define OTG_CTRL_BITS \
+ (OTG_A_BUSREQ|OTG_A_SETB_HNPEN|OTG_B_BUSREQ|OTG_B_HNPEN|OTG_BUSDROP)
+ /* and OTG_PULLUP is sometimes written */
+
+#define OTG_CTRL_MASK (OTG_DRIVER_SEL| \
+ OTG_XCEIV_OUTPUTS|OTG_XCEIV_INPUTS| \
+ OTG_CTRL_BITS)
+
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef CONFIG_MACH_OMAP_H2
+
+/* board-specific PM hooks */
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/mach-types.h>
+
+
+#if defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE)
+
+#include <asm/arch/tps65010.h>
+
+#else
+
+static inline int tps65010_set_vbus_draw(unsigned mA)
+{
+ pr_debug("tps65010: draw %d mA (STUB)\n", mA);
+ return 0;
+}
+
+#endif
+
+static void enable_vbus_draw(struct isp1301 *isp, unsigned mA)
+{
+ int status = tps65010_set_vbus_draw(mA);
+ if (status < 0)
+ pr_debug(" VBUS %d mA error %d\n", mA, status);
+}
+
+static void enable_vbus_source(struct isp1301 *isp)
+{
+ /* this board won't supply more than 8mA vbus power.
+ * some boards can switch a 100ma "unit load" (or more).
+ */
+}
+
+
+/* products will deliver OTG messages with LEDs, GUI, etc */
+static inline void notresponding(struct isp1301 *isp)
+{
+ printk(KERN_NOTICE "OTG device not responding.\n");
+}
+
+
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+/* only two addresses possible */
+#define ISP_BASE 0x2c
+static unsigned short normal_i2c[] = {
+ ISP_BASE, ISP_BASE + 1,
+ I2C_CLIENT_END };
+static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
+static struct i2c_driver isp1301_driver;
+
+/* smbus apis are used for portability */
+
+static inline u8
+isp1301_get_u8(struct isp1301 *isp, u8 reg)
+{
+ return i2c_smbus_read_byte_data(&isp->client, reg + 0);
+}
+
+static inline int
+isp1301_get_u16(struct isp1301 *isp, u8 reg)
+{
+ return i2c_smbus_read_word_data(&isp->client, reg);
+}
+
+static inline int
+isp1301_set_bits(struct isp1301 *isp, u8 reg, u8 bits)
+{
+ return i2c_smbus_write_byte_data(&isp->client, reg + 0, bits);
+}
+
+static inline int
+isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits)
+{
+ return i2c_smbus_write_byte_data(&isp->client, reg + 1, bits);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* identification */
+#define ISP1301_VENDOR_ID 0x00 /* u16 read */
+#define ISP1301_PRODUCT_ID 0x02 /* u16 read */
+#define ISP1301_BCD_DEVICE 0x14 /* u16 read */
+
+#define I2C_VENDOR_ID_PHILIPS 0x04cc
+#define I2C_PRODUCT_ID_PHILIPS_1301 0x1301
+
+/* operational registers */
+#define ISP1301_MODE_CONTROL_1 0x04 /* u8 read, set, +1 clear */
+# define MC1_SPEED_REG (1 << 0)
+# define MC1_SUSPEND_REG (1 << 1)
+# define MC1_DAT_SE0 (1 << 2)
+# define MC1_TRANSPARENT (1 << 3)
+# define MC1_BDIS_ACON_EN (1 << 4)
+# define MC1_OE_INT_EN (1 << 5)
+# define MC1_UART_EN (1 << 6)
+# define MC1_MASK 0x7f
+#define ISP1301_MODE_CONTROL_2 0x12 /* u8 read, set, +1 clear */
+# define MC2_GLOBAL_PWR_DN (1 << 0)
+# define MC2_SPD_SUSP_CTRL (1 << 1)
+# define MC2_BI_DI (1 << 2)
+# define MC2_TRANSP_BDIR0 (1 << 3)
+# define MC2_TRANSP_BDIR1 (1 << 4)
+# define MC2_AUDIO_EN (1 << 5)
+# define MC2_PSW_EN (1 << 6)
+# define MC2_EN2V7 (1 << 7)
+#define ISP1301_OTG_CONTROL_1 0x06 /* u8 read, set, +1 clear */
+# define OTG1_DP_PULLUP (1 << 0)
+# define OTG1_DM_PULLUP (1 << 1)
+# define OTG1_DP_PULLDOWN (1 << 2)
+# define OTG1_DM_PULLDOWN (1 << 3)
+# define OTG1_ID_PULLDOWN (1 << 4)
+# define OTG1_VBUS_DRV (1 << 5)
+# define OTG1_VBUS_DISCHRG (1 << 6)
+# define OTG1_VBUS_CHRG (1 << 7)
+#define ISP1301_OTG_STATUS 0x10 /* u8 readonly */
+# define OTG_B_SESS_END (1 << 6)
+# define OTG_B_SESS_VLD (1 << 7)
+
+#define ISP1301_INTERRUPT_SOURCE 0x08 /* u8 read */
+#define ISP1301_INTERRUPT_LATCH 0x0A /* u8 read, set, +1 clear */
+
+#define ISP1301_INTERRUPT_FALLING 0x0C /* u8 read, set, +1 clear */
+#define ISP1301_INTERRUPT_RISING 0x0E /* u8 read, set, +1 clear */
+
+/* same bitfields in all interrupt registers */
+# define INTR_VBUS_VLD (1 << 0)
+# define INTR_SESS_VLD (1 << 1)
+# define INTR_DP_HI (1 << 2)
+# define INTR_ID_GND (1 << 3)
+# define INTR_DM_HI (1 << 4)
+# define INTR_ID_FLOAT (1 << 5)
+# define INTR_BDIS_ACON (1 << 6)
+# define INTR_CR_INT (1 << 7)
+
+/*-------------------------------------------------------------------------*/
+
+static const char *state_string(enum usb_otg_state state)
+{
+ switch (state) {
+ case OTG_STATE_A_IDLE: return "a_idle";
+ case OTG_STATE_A_WAIT_VRISE: return "a_wait_vrise";
+ case OTG_STATE_A_WAIT_BCON: return "a_wait_bcon";
+ case OTG_STATE_A_HOST: return "a_host";
+ case OTG_STATE_A_SUSPEND: return "a_suspend";
+ case OTG_STATE_A_PERIPHERAL: return "a_peripheral";
+ case OTG_STATE_A_WAIT_VFALL: return "a_wait_vfall";
+ case OTG_STATE_A_VBUS_ERR: return "a_vbus_err";
+ case OTG_STATE_B_IDLE: return "b_idle";
+ case OTG_STATE_B_SRP_INIT: return "b_srp_init";
+ case OTG_STATE_B_PERIPHERAL: return "b_peripheral";
+ case OTG_STATE_B_WAIT_ACON: return "b_wait_acon";
+ case OTG_STATE_B_HOST: return "b_host";
+ default: return "UNDEFINED";
+ }
+}
+
+static inline const char *state_name(struct isp1301 *isp)
+{
+ return state_string(isp->otg.state);
+}
+
+#ifdef VERBOSE
+#define dev_vdbg dev_dbg
+#else
+#define dev_vdbg(dev, fmt, arg...) do{}while(0)
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+/* NOTE: some of this ISP1301 setup is specific to H2 boards;
+ * not everything is guarded by board-specific checks, or even using
+ * omap_usb_config data to deduce MC1_DAT_SE0 and MC2_BI_DI.
+ *
+ * ALSO: this currently doesn't use ISP1301 low-power modes
+ * while OTG is running.
+ */
+
+static void power_down(struct isp1301 *isp)
+{
+ isp->otg.state = OTG_STATE_UNDEFINED;
+
+ // isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2, MC2_GLOBAL_PWR_DN);
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_SUSPEND_REG);
+
+ isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_ID_PULLDOWN);
+ isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
+}
+
+static void power_up(struct isp1301 *isp)
+{
+ // isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_2, MC2_GLOBAL_PWR_DN);
+ isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1, MC1_SUSPEND_REG);
+
+ /* do this only when cpu is driving transceiver,
+ * so host won't see a low speed device...
+ */
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
+}
+
+#define NO_HOST_SUSPEND
+
+static int host_suspend(struct isp1301 *isp)
+{
+#ifdef NO_HOST_SUSPEND
+ return 0;
+#else
+ struct device *dev;
+
+ if (!isp->otg.host)
+ return -ENODEV;
+
+ /* Currently ASSUMES only the OTG port matters;
+ * other ports could be active...
+ */
+ dev = isp->otg.host->controller;
+ return dev->driver->suspend(dev, 3, 0);
+#endif
+}
+
+static int host_resume(struct isp1301 *isp)
+{
+#ifdef NO_HOST_SUSPEND
+ return 0;
+#else
+ struct device *dev;
+
+ if (!isp->otg.host)
+ return -ENODEV;
+
+ dev = isp->otg.host->controller;
+ return dev->driver->resume(dev, 0);
+#endif
+}
+
+static int gadget_suspend(struct isp1301 *isp)
+{
+ isp->otg.gadget->b_hnp_enable = 0;
+ isp->otg.gadget->a_hnp_support = 0;
+ isp->otg.gadget->a_alt_hnp_support = 0;
+ return usb_gadget_vbus_disconnect(isp->otg.gadget);
+}
+
+/*-------------------------------------------------------------------------*/
+
+#define TIMER_MINUTES 10
+#define TIMER_JIFFIES (TIMER_MINUTES * 60 * HZ)
+
+/* Almost all our I2C messaging comes from a work queue's task context.
+ * NOTE: guaranteeing certain response times might mean we shouldn't
+ * share keventd's work queue; a realtime task might be safest.
+ */
+void
+isp1301_defer_work(struct isp1301 *isp, int work)
+{
+ int status;
+
+ if (isp && !test_and_set_bit(work, &isp->todo)) {
+ (void) get_device(&isp->client.dev);
+ status = schedule_work(&isp->work);
+ if (!status && !isp->working)
+ dev_vdbg(&isp->client.dev,
+ "work item %d may be lost\n", work);
+ }
+}
+
+/* called from irq handlers */
+static void a_idle(struct isp1301 *isp, const char *tag)
+{
+ if (isp->otg.state == OTG_STATE_A_IDLE)
+ return;
+
+ isp->otg.default_a = 1;
+ if (isp->otg.host) {
+ isp->otg.host->is_b_host = 0;
+ host_suspend(isp);
+ }
+ if (isp->otg.gadget) {
+ isp->otg.gadget->is_a_peripheral = 1;
+ gadget_suspend(isp);
+ }
+ isp->otg.state = OTG_STATE_A_IDLE;
+ isp->last_otg_ctrl = OTG_CTRL_REG = OTG_CTRL_REG & OTG_XCEIV_OUTPUTS;
+ pr_debug(" --> %s/%s\n", state_name(isp), tag);
+}
+
+/* called from irq handlers */
+static void b_idle(struct isp1301 *isp, const char *tag)
+{
+ if (isp->otg.state == OTG_STATE_B_IDLE)
+ return;
+
+ isp->otg.default_a = 0;
+ if (isp->otg.host) {
+ isp->otg.host->is_b_host = 1;
+ host_suspend(isp);
+ }
+ if (isp->otg.gadget) {
+ isp->otg.gadget->is_a_peripheral = 0;
+ gadget_suspend(isp);
+ }
+ isp->otg.state = OTG_STATE_B_IDLE;
+ isp->last_otg_ctrl = OTG_CTRL_REG = OTG_CTRL_REG & OTG_XCEIV_OUTPUTS;
+ pr_debug(" --> %s/%s\n", state_name(isp), tag);
+}
+
+static void
+dump_regs(struct isp1301 *isp, const char *label)
+{
+#ifdef DEBUG
+ u8 ctrl = isp1301_get_u8(isp, ISP1301_OTG_CONTROL_1);
+ u8 status = isp1301_get_u8(isp, ISP1301_OTG_STATUS);
+ u8 src = isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE);
+
+ pr_debug("otg: %06x, %s %s, otg/%02x stat/%02x.%02x\n",
+ OTG_CTRL_REG, label, state_name(isp),
+ ctrl, status, src);
+ /* mode control and irq enables don't change much */
+#endif
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef CONFIG_USB_OTG
+
+/*
+ * The OMAP OTG controller handles most of the OTG state transitions.
+ *
+ * We translate isp1301 outputs (mostly voltage comparator status) into
+ * OTG inputs; OTG outputs (mostly pullup/pulldown controls) and HNP state
+ * flags into isp1301 inputs ... and infer state transitions.
+ */
+
+#ifdef VERBOSE
+
+static void check_state(struct isp1301 *isp, const char *tag)
+{
+ enum usb_otg_state state = OTG_STATE_UNDEFINED;
+ u8 fsm = OTG_TEST_REG & 0x0ff;
+ unsigned extra = 0;
+
+ switch (fsm) {
+
+ /* default-b */
+ case 0x0:
+ state = OTG_STATE_B_IDLE;
+ break;
+ case 0x3:
+ case 0x7:
+ extra = 1;
+ case 0x1:
+ state = OTG_STATE_B_PERIPHERAL;
+ break;
+ case 0x11:
+ state = OTG_STATE_B_SRP_INIT;
+ break;
+
+ /* extra dual-role default-b states */
+ case 0x12:
+ case 0x13:
+ case 0x16:
+ extra = 1;
+ case 0x17:
+ state = OTG_STATE_B_WAIT_ACON;
+ break;
+ case 0x34:
+ state = OTG_STATE_B_HOST;
+ break;
+
+ /* default-a */
+ case 0x36:
+ state = OTG_STATE_A_IDLE;
+ break;
+ case 0x3c:
+ state = OTG_STATE_A_WAIT_VFALL;
+ break;
+ case 0x7d:
+ state = OTG_STATE_A_VBUS_ERR;
+ break;
+ case 0x9e:
+ case 0x9f:
+ extra = 1;
+ case 0x89:
+ state = OTG_STATE_A_PERIPHERAL;
+ break;
+ case 0xb7:
+ state = OTG_STATE_A_WAIT_VRISE;
+ break;
+ case 0xb8:
+ state = OTG_STATE_A_WAIT_BCON;
+ break;
+ case 0xb9:
+ state = OTG_STATE_A_HOST;
+ break;
+ case 0xba:
+ state = OTG_STATE_A_SUSPEND;
+ break;
+ default:
+ break;
+ }
+ if (isp->otg.state == state && !extra)
+ return;
+ pr_debug("otg: %s FSM %s/%02x, %s, %06x\n", tag,
+ state_string(state), fsm, state_name(isp), OTG_CTRL_REG);
+}
+
+#else
+
+static inline void check_state(struct isp1301 *isp, const char *tag) { }
+
+#endif
+
+/* outputs from ISP1301_INTERRUPT_SOURCE */
+static void update_otg1(struct isp1301 *isp, u8 int_src)
+{
+ u32 otg_ctrl;
+
+ otg_ctrl = OTG_CTRL_REG
+ & OTG_CTRL_MASK
+ & ~OTG_XCEIV_INPUTS
+ & ~(OTG_ID|OTG_ASESSVLD|OTG_VBUSVLD);
+ if (int_src & INTR_SESS_VLD)
+ otg_ctrl |= OTG_ASESSVLD;
+ else if (isp->otg.state == OTG_STATE_A_WAIT_VFALL) {
+ a_idle(isp, "vfall");
+ otg_ctrl &= ~OTG_CTRL_BITS;
+ }
+ if (int_src & INTR_VBUS_VLD)
+ otg_ctrl |= OTG_VBUSVLD;
+ if (int_src & INTR_ID_GND) { /* default-A */
+ if (isp->otg.state == OTG_STATE_B_IDLE
+ || isp->otg.state == OTG_STATE_UNDEFINED) {
+ a_idle(isp, "init");
+ return;
+ }
+ } else { /* default-B */
+ otg_ctrl |= OTG_ID;
+ if (isp->otg.state == OTG_STATE_A_IDLE
+ || isp->otg.state == OTG_STATE_UNDEFINED) {
+ b_idle(isp, "init");
+ return;
+ }
+ }
+ OTG_CTRL_REG = otg_ctrl;
+}
+
+/* outputs from ISP1301_OTG_STATUS */
+static void update_otg2(struct isp1301 *isp, u8 otg_status)
+{
+ u32 otg_ctrl;
+
+ otg_ctrl = OTG_CTRL_REG
+ & OTG_CTRL_MASK
+ & ~OTG_XCEIV_INPUTS
+ & ~(OTG_BSESSVLD|OTG_BSESSEND);
+ if (otg_status & OTG_B_SESS_VLD)
+ otg_ctrl |= OTG_BSESSVLD;
+ else if (otg_status & OTG_B_SESS_END)
+ otg_ctrl |= OTG_BSESSEND;
+ OTG_CTRL_REG = otg_ctrl;
+}
+
+/* inputs going to ISP1301 */
+static void otg_update_isp(struct isp1301 *isp)
+{
+ u32 otg_ctrl, otg_change;
+ u8 set = OTG1_DM_PULLDOWN, clr = OTG1_DM_PULLUP;
+
+ otg_ctrl = OTG_CTRL_REG;
+ otg_change = otg_ctrl ^ isp->last_otg_ctrl;
+ isp->last_otg_ctrl = otg_ctrl;
+ otg_ctrl = otg_ctrl & OTG_XCEIV_INPUTS;
+
+ switch (isp->otg.state) {
+ case OTG_STATE_B_IDLE:
+ case OTG_STATE_B_PERIPHERAL:
+ case OTG_STATE_B_SRP_INIT:
+ if (!(otg_ctrl & OTG_PULLUP)) {
+ // if (otg_ctrl & OTG_B_HNPEN) {
+ if (isp->otg.gadget->b_hnp_enable) {
+ isp->otg.state = OTG_STATE_B_WAIT_ACON;
+ pr_debug(" --> b_wait_acon\n");
+ }
+ goto pulldown;
+ }
+pullup:
+ set |= OTG1_DP_PULLUP;
+ clr |= OTG1_DP_PULLDOWN;
+ break;
+ case OTG_STATE_A_SUSPEND:
+ case OTG_STATE_A_PERIPHERAL:
+ if (otg_ctrl & OTG_PULLUP)
+ goto pullup;
+ /* FALLTHROUGH */
+ // case OTG_STATE_B_WAIT_ACON:
+ default:
+pulldown:
+ set |= OTG1_DP_PULLDOWN;
+ clr |= OTG1_DP_PULLUP;
+ break;
+ }
+
+# define toggle(OTG,ISP) do { \
+ if (otg_ctrl & OTG) set |= ISP; \
+ else clr |= ISP; \
+ } while (0)
+
+ if (!(isp->otg.host))
+ otg_ctrl &= ~OTG_DRV_VBUS;
+
+ switch (isp->otg.state) {
+ case OTG_STATE_A_SUSPEND:
+ if (otg_ctrl & OTG_DRV_VBUS) {
+ set |= OTG1_VBUS_DRV;
+ break;
+ }
+ /* HNP failed for some reason (A_AIDL_BDIS timeout) */
+ notresponding(isp);
+
+ /* FALLTHROUGH */
+ case OTG_STATE_A_VBUS_ERR:
+ isp->otg.state = OTG_STATE_A_WAIT_VFALL;
+ pr_debug(" --> a_wait_vfall\n");
+ /* FALLTHROUGH */
+ case OTG_STATE_A_WAIT_VFALL:
+ /* FIXME usbcore thinks port power is still on ... */
+ clr |= OTG1_VBUS_DRV;
+ break;
+ case OTG_STATE_A_IDLE:
+ if (otg_ctrl & OTG_DRV_VBUS) {
+ isp->otg.state = OTG_STATE_A_WAIT_VRISE;
+ pr_debug(" --> a_wait_vrise\n");
+ }
+ /* FALLTHROUGH */
+ default:
+ toggle(OTG_DRV_VBUS, OTG1_VBUS_DRV);
+ }
+
+ toggle(OTG_PU_VBUS, OTG1_VBUS_CHRG);
+ toggle(OTG_PD_VBUS, OTG1_VBUS_DISCHRG);
+
+# undef toggle
+
+ isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, set);
+ isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1, clr);
+
+ /* HNP switch to host or peripheral; and SRP */
+ if (otg_change & OTG_PULLUP) {
+ switch (isp->otg.state) {
+ case OTG_STATE_B_IDLE:
+ if (clr & OTG1_DP_PULLUP)
+ break;
+ isp->otg.state = OTG_STATE_B_PERIPHERAL;
+ pr_debug(" --> b_peripheral\n");
+ break;
+ case OTG_STATE_A_SUSPEND:
+ if (clr & OTG1_DP_PULLUP)
+ break;
+ isp->otg.state = OTG_STATE_A_PERIPHERAL;
+ pr_debug(" --> a_peripheral\n");
+ break;
+ default:
+ break;
+ }
+ OTG_CTRL_REG |= OTG_PULLUP;
+ }
+
+ check_state(isp, __FUNCTION__);
+ dump_regs(isp, "otg->isp1301");
+}
+
+static irqreturn_t omap_otg_irq(int irq, void *_isp, struct pt_regs *regs)
+{
+ u16 otg_irq = OTG_IRQ_SRC_REG;
+ u32 otg_ctrl;
+ int ret = IRQ_NONE;
+ struct isp1301 *isp = _isp;
+
+ /* update ISP1301 transciever from OTG controller */
+ if (otg_irq & OPRT_CHG) {
+ OTG_IRQ_SRC_REG = OPRT_CHG;
+ isp1301_defer_work(isp, WORK_UPDATE_ISP);
+ ret = IRQ_HANDLED;
+
+ /* SRP to become b_peripheral failed */
+ } else if (otg_irq & B_SRP_TMROUT) {
+ pr_debug("otg: B_SRP_TIMEOUT, %06x\n", OTG_CTRL_REG);
+ notresponding(isp);
+
+ /* gadget drivers that care should monitor all kinds of
+ * remote wakeup (SRP, normal) using their own timer
+ * to give "check cable and A-device" messages.
+ */
+ if (isp->otg.state == OTG_STATE_B_SRP_INIT)
+ b_idle(isp, "srp_timeout");
+
+ OTG_IRQ_SRC_REG = B_SRP_TMROUT;
+ ret = IRQ_HANDLED;
+
+ /* HNP to become b_host failed */
+ } else if (otg_irq & B_HNP_FAIL) {
+ pr_debug("otg: %s B_HNP_FAIL, %06x\n",
+ state_name(isp), OTG_CTRL_REG);
+ notresponding(isp);
+
+ otg_ctrl = OTG_CTRL_REG;
+ otg_ctrl |= OTG_BUSDROP;
+ otg_ctrl &= OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
+ OTG_CTRL_REG = otg_ctrl;
+
+ /* subset of b_peripheral()... */
+ isp->otg.state = OTG_STATE_B_PERIPHERAL;
+ pr_debug(" --> b_peripheral\n");
+
+ OTG_IRQ_SRC_REG = B_HNP_FAIL;
+ ret = IRQ_HANDLED;
+
+ /* detect SRP from B-device ... */
+ } else if (otg_irq & A_SRP_DETECT) {
+ pr_debug("otg: %s SRP_DETECT, %06x\n",
+ state_name(isp), OTG_CTRL_REG);
+
+ isp1301_defer_work(isp, WORK_UPDATE_OTG);
+ switch (isp->otg.state) {
+ case OTG_STATE_A_IDLE:
+ if (!isp->otg.host)
+ break;
+ isp1301_defer_work(isp, WORK_HOST_RESUME);
+ otg_ctrl = OTG_CTRL_REG;
+ otg_ctrl |= OTG_A_BUSREQ;
+ otg_ctrl &= ~(OTG_BUSDROP|OTG_B_BUSREQ)
+ & ~OTG_XCEIV_INPUTS
+ & OTG_CTRL_MASK;
+ OTG_CTRL_REG = otg_ctrl;
+ break;
+ default:
+ break;
+ }
+
+ OTG_IRQ_SRC_REG = A_SRP_DETECT;
+ ret = IRQ_HANDLED;
+
+ /* timer expired: T(a_wait_bcon) and maybe T(a_wait_vrise)
+ * we don't track them separately
+ */
+ } else if (otg_irq & A_REQ_TMROUT) {
+ otg_ctrl = OTG_CTRL_REG;
+ pr_info("otg: BCON_TMOUT from %s, %06x\n",
+ state_name(isp), otg_ctrl);
+ notresponding(isp);
+
+ otg_ctrl |= OTG_BUSDROP;
+ otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
+ OTG_CTRL_REG = otg_ctrl;
+ isp->otg.state = OTG_STATE_A_WAIT_VFALL;
+
+ OTG_IRQ_SRC_REG = A_REQ_TMROUT;
+ ret = IRQ_HANDLED;
+
+ /* A-supplied voltage fell too low; overcurrent */
+ } else if (otg_irq & A_VBUS_ERR) {
+ otg_ctrl = OTG_CTRL_REG;
+ printk(KERN_ERR "otg: %s, VBUS_ERR %04x ctrl %06x\n",
+ state_name(isp), otg_irq, otg_ctrl);
+
+ otg_ctrl |= OTG_BUSDROP;
+ otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
+ OTG_CTRL_REG = otg_ctrl;
+ isp->otg.state = OTG_STATE_A_VBUS_ERR;
+
+ OTG_IRQ_SRC_REG = A_VBUS_ERR;
+ ret = IRQ_HANDLED;
+
+ /* switch driver; the transciever code activates it,
+ * ungating the udc clock or resuming OHCI.
+ */
+ } else if (otg_irq & DRIVER_SWITCH) {
+ int kick = 0;
+
+ otg_ctrl = OTG_CTRL_REG;
+ printk(KERN_NOTICE "otg: %s, SWITCH to %s, ctrl %06x\n",
+ state_name(isp),
+ (otg_ctrl & OTG_DRIVER_SEL)
+ ? "gadget" : "host",
+ otg_ctrl);
+ isp1301_defer_work(isp, WORK_UPDATE_ISP);
+
+ /* role is peripheral */
+ if (otg_ctrl & OTG_DRIVER_SEL) {
+ switch (isp->otg.state) {
+ case OTG_STATE_A_IDLE:
+ b_idle(isp, __FUNCTION__);
+ break;
+ default:
+ break;
+ }
+ isp1301_defer_work(isp, WORK_UPDATE_ISP);
+
+ /* role is host */
+ } else {
+ if (!(otg_ctrl & OTG_ID)) {
+ otg_ctrl &= OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
+ OTG_CTRL_REG = otg_ctrl | OTG_A_BUSREQ;
+ }
+
+ if (isp->otg.host) {
+ switch (isp->otg.state) {
+ case OTG_STATE_B_WAIT_ACON:
+ isp->otg.state = OTG_STATE_B_HOST;
+ pr_debug(" --> b_host\n");
+ kick = 1;
+ break;
+ case OTG_STATE_A_WAIT_BCON:
+ isp->otg.state = OTG_STATE_A_HOST;
+ pr_debug(" --> a_host\n");
+ break;
+ case OTG_STATE_A_PERIPHERAL:
+ isp->otg.state = OTG_STATE_A_WAIT_BCON;
+ pr_debug(" --> a_wait_bcon\n");
+ break;
+ default:
+ break;
+ }
+ isp1301_defer_work(isp, WORK_HOST_RESUME);
+ }
+ }
+
+ OTG_IRQ_SRC_REG = DRIVER_SWITCH;
+ ret = IRQ_HANDLED;
+
+ if (kick)
+ usb_bus_start_enum(isp->otg.host,
+ isp->otg.host->otg_port);
+ }
+
+ check_state(isp, __FUNCTION__);
+ return ret;
+}
+
+static struct platform_device *otg_dev;
+
+static int otg_init(struct isp1301 *isp)
+{
+ if (!otg_dev)
+ return -ENODEV;
+
+ dump_regs(isp, __FUNCTION__);
+ /* some of these values are board-specific... */
+ OTG_SYSCON_2_REG |= OTG_EN
+ /* for B-device: */
+ | SRP_GPDATA /* 9msec Bdev D+ pulse */
+ | SRP_GPDVBUS /* discharge after VBUS pulse */
+ // | (3 << 24) /* 2msec VBUS pulse */
+ /* for A-device: */
+ | (0 << 20) /* 200ms nominal A_WAIT_VRISE timer */
+ | SRP_DPW /* detect 167+ns SRP pulses */
+ | SRP_DATA | SRP_VBUS /* accept both kinds of SRP pulse */
+ ;
+
+ update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
+ update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
+
+ check_state(isp, __FUNCTION__);
+ pr_debug("otg: %s, %s %06x\n",
+ state_name(isp), __FUNCTION__, OTG_CTRL_REG);
+
+ OTG_IRQ_EN_REG = DRIVER_SWITCH | OPRT_CHG
+ | B_SRP_TMROUT | B_HNP_FAIL
+ | A_VBUS_ERR | A_SRP_DETECT | A_REQ_TMROUT;
+ OTG_SYSCON_2_REG |= OTG_EN;
+
+ return 0;
+}
+
+static int otg_probe(struct device *dev)
+{
+ // struct omap_usb_config *config = dev->platform_data;
+
+ otg_dev = to_platform_device(dev);
+ return 0;
+}
+
+static int otg_remove(struct device *dev)
+{
+ otg_dev = 0;
+ return 0;
+}
+
+struct device_driver omap_otg_driver = {
+ .name = "omap_otg",
+ .bus = &platform_bus_type,
+ .probe = otg_probe,
+ .remove = otg_remove,
+};
+
+static int otg_bind(struct isp1301 *isp)
+{
+ int status;
+
+ if (otg_dev)
+ return -EBUSY;
+
+ status = driver_register(&omap_otg_driver);
+ if (status < 0)
+ return status;
+
+ if (otg_dev)
+ status = request_irq(otg_dev->resource[1].start, omap_otg_irq,
+ SA_INTERRUPT, DRIVER_NAME, isp);
+ else
+ status = -ENODEV;
+
+ if (status < 0)
+ driver_unregister(&omap_otg_driver);
+ return status;
+}
+
+static void otg_unbind(struct isp1301 *isp)
+{
+ if (!otg_dev)
+ return;
+ free_irq(otg_dev->resource[1].start, isp);
+}
+
+#else
+
+/* OTG controller isn't clocked */
+
+#endif /* CONFIG_USB_OTG */
+
+/*-------------------------------------------------------------------------*/
+
+static void b_peripheral(struct isp1301 *isp)
+{
+ OTG_CTRL_REG = OTG_CTRL_REG & OTG_XCEIV_OUTPUTS;
+ usb_gadget_vbus_connect(isp->otg.gadget);
+
+#ifdef CONFIG_USB_OTG
+ enable_vbus_draw(isp, 8);
+ otg_update_isp(isp);
+#else
+ enable_vbus_draw(isp, 100);
+ /* UDC driver just set OTG_BSESSVLD */
+ isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_DP_PULLUP);
+ isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_DP_PULLDOWN);
+ isp->otg.state = OTG_STATE_B_PERIPHERAL;
+ pr_debug(" --> b_peripheral\n");
+ dump_regs(isp, "2periph");
+#endif
+}
+
+static void isp_update_otg(struct isp1301 *isp, u8 stat)
+{
+ u8 isp_stat, isp_bstat;
+ enum usb_otg_state state = isp->otg.state;
+
+ if (stat & INTR_BDIS_ACON)
+ pr_debug("OTG: BDIS_ACON, %s\n", state_name(isp));
+
+ /* start certain state transitions right away */
+ isp_stat = isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE);
+ if (isp_stat & INTR_ID_GND) {
+ if (isp->otg.default_a) {
+ switch (state) {
+ case OTG_STATE_B_IDLE:
+ a_idle(isp, "idle");
+ /* FALLTHROUGH */
+ case OTG_STATE_A_IDLE:
+ enable_vbus_source(isp);
+ /* FALLTHROUGH */
+ case OTG_STATE_A_WAIT_VRISE:
+ /* we skip over OTG_STATE_A_WAIT_BCON, since
+ * the HC will transition to A_HOST (or
+ * A_SUSPEND!) without our noticing except
+ * when HNP is used.
+ */
+ if (isp_stat & INTR_VBUS_VLD)
+ isp->otg.state = OTG_STATE_A_HOST;
+ break;
+ case OTG_STATE_A_WAIT_VFALL:
+ if (!(isp_stat & INTR_SESS_VLD))
+ a_idle(isp, "vfell");
+ break;
+ default:
+ if (!(isp_stat & INTR_VBUS_VLD))
+ isp->otg.state = OTG_STATE_A_VBUS_ERR;
+ break;
+ }
+ isp_bstat = isp1301_get_u8(isp, ISP1301_OTG_STATUS);
+ } else {
+ switch (state) {
+ case OTG_STATE_B_PERIPHERAL:
+ case OTG_STATE_B_HOST:
+ case OTG_STATE_B_WAIT_ACON:
+ usb_gadget_vbus_disconnect(isp->otg.gadget);
+ break;
+ default:
+ break;
+ }
+ if (state != OTG_STATE_A_IDLE)
+ a_idle(isp, "id");
+ if (isp->otg.host && state == OTG_STATE_A_IDLE)
+ isp1301_defer_work(isp, WORK_HOST_RESUME);
+ isp_bstat = 0;
+ }
+ } else {
+ /* if user unplugged mini-A end of cable,
+ * don't bypass A_WAIT_VFALL.
+ */
+ if (isp->otg.default_a) {
+ switch (state) {
+ default:
+ isp->otg.state = OTG_STATE_A_WAIT_VFALL;
+ break;
+ case OTG_STATE_A_WAIT_VFALL:
+ state = OTG_STATE_A_IDLE;
+ /* khubd may take a while to notice and
+ * handle this disconnect, so don't go
+ * to B_IDLE quite yet.
+ */
+ break;
+ case OTG_STATE_A_IDLE:
+ host_suspend(isp);
+ isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1,
+ MC1_BDIS_ACON_EN);
+ isp->otg.state = OTG_STATE_B_IDLE;
+ OTG_CTRL_REG &= OTG_CTRL_REG & OTG_CTRL_MASK
+ & ~OTG_CTRL_BITS;
+ break;
+ case OTG_STATE_B_IDLE:
+ break;
+ }
+ }
+ isp_bstat = isp1301_get_u8(isp, ISP1301_OTG_STATUS);
+
+ switch (isp->otg.state) {
+ case OTG_STATE_B_PERIPHERAL:
+ case OTG_STATE_B_WAIT_ACON:
+ case OTG_STATE_B_HOST:
+ if (likely(isp_bstat & OTG_B_SESS_VLD))
+ break;
+ enable_vbus_draw(isp, 0);
+#ifndef CONFIG_USB_OTG
+ /* UDC driver will clear OTG_BSESSVLD */
+ isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1,
+ OTG1_DP_PULLDOWN);
+ isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1,
+ OTG1_DP_PULLUP);
+ dump_regs(isp, __FUNCTION__);
+#endif
+ /* FALLTHROUGH */
+ case OTG_STATE_B_SRP_INIT:
+ b_idle(isp, __FUNCTION__);
+ OTG_CTRL_REG &= OTG_CTRL_REG & OTG_XCEIV_OUTPUTS;
+ /* FALLTHROUGH */
+ case OTG_STATE_B_IDLE:
+ if (isp->otg.gadget && (isp_bstat & OTG_B_SESS_VLD)) {
+#ifdef CONFIG_USB_OTG
+ update_otg1(isp, isp_stat);
+ update_otg2(isp, isp_bstat);
+#endif
+ b_peripheral(isp);
+ } else if (!(isp_stat & (INTR_VBUS_VLD|INTR_SESS_VLD)))
+ isp_bstat |= OTG_B_SESS_END;
+ break;
+ case OTG_STATE_A_WAIT_VFALL:
+ break;
+ default:
+ pr_debug("otg: unsupported b-device %s\n",
+ state_name(isp));
+ break;
+ }
+ }
+
+ if (state != isp->otg.state)
+ pr_debug(" isp, %s -> %s\n",
+ state_string(state), state_name(isp));
+
+#ifdef CONFIG_USB_OTG
+ /* update the OTG controller state to match the isp1301; may
+ * trigger OPRT_CHG irqs for changes going to the isp1301.
+ */
+ update_otg1(isp, isp_stat);
+ update_otg2(isp, isp_bstat);
+ check_state(isp, __FUNCTION__);
+#endif
+
+ dump_regs(isp, "isp1301->otg");
+}
+
+/*-------------------------------------------------------------------------*/
+
+static u8 isp1301_clear_latch(struct isp1301 *isp)
+{
+ u8 latch = isp1301_get_u8(isp, ISP1301_INTERRUPT_LATCH);
+ isp1301_clear_bits(isp, ISP1301_INTERRUPT_LATCH, latch);
+ return latch;
+}
+
+static void
+isp1301_work(void *data)
+{
+ struct isp1301 *isp = data;
+ int stop;
+
+ /* implicit lock: we're the only task using this device */
+ isp->working = 1;
+ do {
+ stop = test_bit(WORK_STOP, &isp->todo);
+
+#ifdef CONFIG_USB_OTG
+ /* transfer state from otg engine to isp1301 */
+ if (test_and_clear_bit(WORK_UPDATE_ISP, &isp->todo)) {
+ otg_update_isp(isp);
+ put_device(&isp->client.dev);
+ }
+#endif
+ /* transfer state from isp1301 to otg engine */
+ if (test_and_clear_bit(WORK_UPDATE_OTG, &isp->todo)) {
+ u8 stat = isp1301_clear_latch(isp);
+
+ isp_update_otg(isp, stat);
+ put_device(&isp->client.dev);
+ }
+
+ if (test_and_clear_bit(WORK_HOST_RESUME, &isp->todo)) {
+ u32 otg_ctrl;
+
+ /*
+ * skip A_WAIT_VRISE; hc transitions invisibly
+ * skip A_WAIT_BCON; same.
+ */
+ switch (isp->otg.state) {
+ case OTG_STATE_A_WAIT_BCON:
+ case OTG_STATE_A_WAIT_VRISE:
+ isp->otg.state = OTG_STATE_A_HOST;
+ pr_debug(" --> a_host\n");
+ otg_ctrl = OTG_CTRL_REG;
+ otg_ctrl |= OTG_A_BUSREQ;
+ otg_ctrl &= ~(OTG_BUSDROP|OTG_B_BUSREQ)
+ & OTG_CTRL_MASK;
+ OTG_CTRL_REG = otg_ctrl;
+ break;
+ case OTG_STATE_B_WAIT_ACON:
+ isp->otg.state = OTG_STATE_B_HOST;
+ pr_debug(" --> b_host (acon)\n");
+ break;
+ case OTG_STATE_B_HOST:
+ case OTG_STATE_B_IDLE:
+ case OTG_STATE_A_IDLE:
+ break;
+ default:
+ pr_debug(" host resume in %s\n",
+ state_name(isp));
+ }
+ host_resume(isp);
+ // mdelay(10);
+ put_device(&isp->client.dev);
+ }
+
+ if (test_and_clear_bit(WORK_TIMER, &isp->todo)) {
+#ifdef VERBOSE
+ dump_regs(isp, "timer");
+ if (!stop)
+ mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
+#endif
+ put_device(&isp->client.dev);
+ }
+
+ if (isp->todo)
+ dev_vdbg(&isp->client.dev,
+ "work done, todo = 0x%lx\n",
+ isp->todo);
+ if (stop) {
+ dev_dbg(&isp->client.dev, "stop\n");
+ break;
+ }
+ } while (isp->todo);
+ isp->working = 0;
+}
+
+static irqreturn_t isp1301_irq(int irq, void *isp, struct pt_regs *regs)
+{
+ isp1301_defer_work(isp, WORK_UPDATE_OTG);
+ return IRQ_HANDLED;
+}
+
+static void isp1301_timer(unsigned long _isp)
+{
+ isp1301_defer_work((void *)_isp, WORK_TIMER);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void isp1301_release(struct device *dev)
+{
+ struct isp1301 *isp;
+
+ isp = container_of(dev, struct isp1301, client.dev);
+
+ /* ugly -- i2c hijacks our memory hook to wait_for_completion() */
+ if (isp->i2c_release)
+ isp->i2c_release(dev);
+ kfree (isp);
+}
+
+static struct isp1301 *the_transceiver;
+
+static int isp1301_detach_client(struct i2c_client *i2c)
+{
+ struct isp1301 *isp;
+
+ isp = container_of(i2c, struct isp1301, client);
+
+ isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
+ isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
+ free_irq(isp->irq, isp);
+#ifdef CONFIG_USB_OTG
+ otg_unbind(isp);
+#endif
+ if (machine_is_omap_h2())
+ omap_free_gpio(2);
+
+ isp->timer.data = 0;
+ set_bit(WORK_STOP, &isp->todo);
+ del_timer_sync(&isp->timer);
+ flush_scheduled_work();
+
+ put_device(&i2c->dev);
+ the_transceiver = 0;
+
+ return i2c_detach_client(i2c);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* NOTE: three modes are possible here, only one of which
+ * will be standards-conformant on any given system:
+ *
+ * - OTG mode (dual-role), required if there's a Mini-AB connector
+ * - HOST mode, for when there's one or more A (host) connectors
+ * - DEVICE mode, for when there's a B/Mini-B (device) connector
+ *
+ * As a rule, you won't have an isp1301 chip unless it's there to
+ * support the OTG mode. Other modes help testing USB controllers
+ * in isolation from (full) OTG support, or maybe so later board
+ * revisions can help to support those feature.
+ */
+
+#ifdef CONFIG_USB_OTG
+
+static int isp1301_otg_enable(struct isp1301 *isp)
+{
+ power_up(isp);
+ otg_init(isp);
+
+ /* NOTE: since we don't change this, this provides
+ * a few more interrupts than are strictly needed.
+ */
+ isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
+ INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND);
+ isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
+ INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND);
+
+ dev_info(&isp->client.dev, "ready for dual-role USB ...\n");
+
+ return 0;
+}
+
+#endif
+
+/* add or disable the host device+driver */
+static int
+isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
+{
+ struct isp1301 *isp = container_of(otg, struct isp1301, otg);
+
+ if (!otg || isp != the_transceiver)
+ return -ENODEV;
+
+ if (!host) {
+ OTG_IRQ_EN_REG = 0;
+ power_down(isp);
+ isp->otg.host = 0;
+ return 0;
+ }
+
+#ifdef CONFIG_USB_OTG
+ isp->otg.host = host;
+ dev_dbg(&isp->client.dev, "registered host\n");
+ host_suspend(isp);
+ if (isp->otg.gadget)
+ return isp1301_otg_enable(isp);
+ return 0;
+
+#elif !defined(CONFIG_USB_GADGET_OMAP)
+ // FIXME update its refcount
+ isp->otg.host = host;
+
+ power_up(isp);
+
+ if (machine_is_omap_h2())
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
+
+ dev_info(&isp->client.dev, "A-Host sessions ok\n");
+ isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
+ INTR_ID_GND);
+ isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
+ INTR_ID_GND);
+
+ /* If this has a Mini-AB connector, this mode is highly
+ * nonstandard ... but can be handy for testing, especially with
+ * the Mini-A end of an OTG cable. (Or something nonstandard
+ * like MiniB-to-StandardB, maybe built with a gender mender.)
+ */
+ isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_VBUS_DRV);
+
+ dump_regs(isp, __FUNCTION__);
+
+ return 0;
+
+#else
+ dev_dbg(&isp->client.dev, "host sessions not allowed\n");
+ return -EINVAL;
+#endif
+
+}
+
+static int
+isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
+{
+ struct isp1301 *isp = container_of(otg, struct isp1301, otg);
+
+ if (!otg || isp != the_transceiver)
+ return -ENODEV;
+
+ if (!gadget) {
+ OTG_IRQ_EN_REG = 0;
+ if (!isp->otg.default_a)
+ enable_vbus_draw(isp, 0);
+ usb_gadget_vbus_disconnect(isp->otg.gadget);
+ isp->otg.gadget = 0;
+ power_down(isp);
+ return 0;
+ }
+
+#ifdef CONFIG_USB_OTG
+ isp->otg.gadget = gadget;
+ dev_dbg(&isp->client.dev, "registered gadget\n");
+ /* gadget driver may be suspended until vbus_connect () */
+ if (isp->otg.host)
+ return isp1301_otg_enable(isp);
+ return 0;
+
+#elif !defined(CONFIG_USB_OHCI_HCD) && !defined(CONFIG_USB_OHCI_HCD_MODULE)
+ isp->otg.gadget = gadget;
+ // FIXME update its refcount
+
+ OTG_CTRL_REG = (OTG_CTRL_REG & OTG_CTRL_MASK
+ & ~(OTG_XCEIV_OUTPUTS|OTG_CTRL_BITS))
+ | OTG_ID;
+ power_up(isp);
+ isp->otg.state = OTG_STATE_B_IDLE;
+
+ if (machine_is_omap_h2())
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
+
+ isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
+ INTR_SESS_VLD);
+ isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
+ INTR_VBUS_VLD);
+ dev_info(&isp->client.dev, "B-Peripheral sessions ok\n");
+ dump_regs(isp, __FUNCTION__);
+
+ /* If this has a Mini-AB connector, this mode is highly
+ * nonstandard ... but can be handy for testing, so long
+ * as you don't plug a Mini-A cable into the jack.
+ */
+ if (isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE) & INTR_VBUS_VLD)
+ b_peripheral(isp);
+
+ return 0;
+
+#else
+ dev_dbg(&isp->client.dev, "peripheral sessions not allowed\n");
+ return -EINVAL;
+#endif
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int
+isp1301_set_power(struct otg_transceiver *dev, unsigned mA)
+{
+ if (!the_transceiver)
+ return -ENODEV;
+ if (dev->state == OTG_STATE_B_PERIPHERAL)
+ enable_vbus_draw(the_transceiver, mA);
+ return 0;
+}
+
+static int
+isp1301_start_srp(struct otg_transceiver *dev)
+{
+ struct isp1301 *isp = container_of(dev, struct isp1301, otg);
+ u32 otg_ctrl;
+
+ if (!dev || isp != the_transceiver
+ || isp->otg.state != OTG_STATE_B_IDLE)
+ return -ENODEV;
+
+ otg_ctrl = OTG_CTRL_REG;
+ if (!(otg_ctrl & OTG_BSESSEND))
+ return -EINVAL;
+
+ otg_ctrl |= OTG_B_BUSREQ;
+ otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_MASK;
+ OTG_CTRL_REG = otg_ctrl;
+ isp->otg.state = OTG_STATE_B_SRP_INIT;
+
+ pr_debug("otg: SRP, %s ... %06x\n", state_name(isp), OTG_CTRL_REG);
+#ifdef CONFIG_USB_OTG
+ check_state(isp, __FUNCTION__);
+#endif
+ return 0;
+}
+
+static int
+isp1301_start_hnp(struct otg_transceiver *dev)
+{
+#ifdef CONFIG_USB_OTG
+ struct isp1301 *isp = container_of(dev, struct isp1301, otg);
+
+ if (!dev || isp != the_transceiver)
+ return -ENODEV;
+ if (isp->otg.default_a && (isp->otg.host == NULL
+ || !isp->otg.host->b_hnp_enable))
+ return -ENOTCONN;
+ if (!isp->otg.default_a && (isp->otg.gadget == NULL
+ || !isp->otg.gadget->b_hnp_enable))
+ return -ENOTCONN;
+
+ /* We want hardware to manage most HNP protocol timings.
+ * So do this part as early as possible...
+ */
+ switch (isp->otg.state) {
+ case OTG_STATE_B_HOST:
+ isp->otg.state = OTG_STATE_B_PERIPHERAL;
+ /* caller will suspend next */
+ break;
+ case OTG_STATE_A_HOST:
+#if 0
+ /* autoconnect mode avoids irq latency bugs */
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1,
+ MC1_BDIS_ACON_EN);
+#endif
+ /* caller must suspend then clear A_BUSREQ */
+ usb_gadget_vbus_connect(isp->otg.gadget);
+ OTG_CTRL_REG |= OTG_A_SETB_HNPEN;
+
+ break;
+ case OTG_STATE_A_PERIPHERAL:
+ /* initiated by B-Host suspend */
+ break;
+ default:
+ return -EILSEQ;
+ }
+ pr_debug("otg: HNP %s, %06x ...\n",
+ state_name(isp), OTG_CTRL_REG);
+ check_state(isp, __FUNCTION__);
+ return 0;
+#else
+ /* srp-only */
+ return -EINVAL;
+#endif
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* no error returns, they'd just make bus scanning stop */
+static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
+{
+ int status;
+ struct isp1301 *isp;
+ struct i2c_client *i2c;
+
+ if (the_transceiver)
+ return 0;
+
+ isp = kcalloc(1, sizeof *isp, GFP_KERNEL);
+ if (!isp)
+ return 0;
+
+ INIT_WORK(&isp->work, isp1301_work, isp);
+ init_timer(&isp->timer);
+ isp->timer.function = isp1301_timer;
+ isp->timer.data = (unsigned long) isp;
+
+ isp->irq = -1;
+ isp->client.addr = address;
+ i2c_set_clientdata(&isp->client, isp);
+ isp->client.adapter = bus;
+ isp->client.driver = &isp1301_driver;
+ strlcpy(isp->client.name, DRIVER_NAME, I2C_NAME_SIZE);
+ i2c = &isp->client;
+
+ /* if this is a true probe, verify the chip ... */
+ if (kind < 0) {
+ status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
+ if (status != I2C_VENDOR_ID_PHILIPS) {
+ dev_dbg(&bus->dev, "addr %d not philips id: %d\n",
+ address, status);
+ goto fail1;
+ }
+ status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
+ if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
+ dev_dbg(&bus->dev, "%d not isp1301, %d\n",
+ address, status);
+ goto fail1;
+ }
+ }
+
+ status = i2c_attach_client(i2c);
+ if (status < 0) {
+ dev_dbg(&bus->dev, "can't attach %s to device %d, err %d\n",
+ DRIVER_NAME, address, status);
+fail1:
+ kfree(isp);
+ return 0;
+ }
+ isp->i2c_release = i2c->dev.release;
+ i2c->dev.release = isp1301_release;
+
+ /* initial development used chiprev 2.00 */
+ status = i2c_smbus_read_word_data(i2c, ISP1301_BCD_DEVICE);
+ dev_info(&i2c->dev, "chiprev %x.%02x, driver " DRIVER_VERSION "\n",
+ status >> 8, status & 0xff);
+
+ /* make like power-on reset */
+ isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1, MC1_MASK);
+
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2, MC2_BI_DI);
+ isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_2, ~MC2_BI_DI);
+
+ isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1,
+ OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN);
+ isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1,
+ ~(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN));
+
+ isp1301_clear_bits(isp, ISP1301_INTERRUPT_LATCH, ~0);
+ isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
+ isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
+
+#ifdef CONFIG_USB_OTG
+ status = otg_bind(isp);
+ if (status < 0) {
+ dev_dbg(&i2c->dev, "can't bind OTG\n");
+ goto fail2;
+ }
+#endif
+
+ if (machine_is_omap_h2()) {
+ /* full speed signaling by default */
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1,
+ MC1_SPEED_REG);
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2,
+ MC2_SPD_SUSP_CTRL);
+
+ /* IRQ wired at M14 */
+ omap_cfg_reg(M14_1510_GPIO2);
+ isp->irq = OMAP_GPIO_IRQ(2);
+ omap_request_gpio(2);
+ omap_set_gpio_direction(2, 1);
+ omap_set_gpio_edge_ctrl(2, OMAP_GPIO_FALLING_EDGE);
+ }
+
+ status = request_irq(isp->irq, isp1301_irq,
+ SA_SAMPLE_RANDOM, DRIVER_NAME, isp);
+ if (status < 0) {
+ dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n",
+ isp->irq, status);
+#ifdef CONFIG_USB_OTG
+fail2:
+#endif
+ i2c_detach_client(i2c);
+ goto fail1;
+ }
+
+ isp->otg.dev = &isp->client.dev;
+ isp->otg.label = DRIVER_NAME;
+
+ isp->otg.set_host = isp1301_set_host,
+ isp->otg.set_peripheral = isp1301_set_peripheral,
+ isp->otg.set_power = isp1301_set_power,
+ isp->otg.start_srp = isp1301_start_srp,
+ isp->otg.start_hnp = isp1301_start_hnp,
+
+ enable_vbus_draw(isp, 0);
+ power_down(isp);
+ the_transceiver = isp;
+
+#ifdef CONFIG_USB_OTG
+ update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
+ update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
+#endif
+
+ dump_regs(isp, __FUNCTION__);
+
+#ifdef VERBOSE
+ mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
+ dev_dbg(&i2c->dev, "scheduled timer, %d min\n", TIMER_MINUTES);
+#endif
+
+ status = otg_set_transceiver(&isp->otg);
+ if (status < 0)
+ dev_err(&i2c->dev, "can't register transceiver, %d\n",
+ status);
+
+ return 0;
+}
+
+static int isp1301_scan_bus(struct i2c_adapter *bus)
+{
+ if (!i2c_check_functionality(bus, I2C_FUNC_SMBUS_BYTE_DATA
+ | I2C_FUNC_SMBUS_READ_WORD_DATA))
+ return -EINVAL;
+ return i2c_probe(bus, &addr_data, isp1301_probe);
+}
+
+static struct i2c_driver isp1301_driver = {
+ .owner = THIS_MODULE,
+ .name = "isp1301_omap",
+ .id = 1301, /* FIXME "official", i2c-ids.h */
+ .class = I2C_CLASS_HWMON,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = isp1301_scan_bus,
+ .detach_client = isp1301_detach_client,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static int __init isp_init(void)
+{
+ return i2c_add_driver(&isp1301_driver);
+}
+module_init(isp_init);
+
+static void __exit isp_exit(void)
+{
+ if (the_transceiver)
+ otg_set_transceiver(0);
+ i2c_del_driver(&isp1301_driver);
+}
+module_exit(isp_exit);
+
diff --git a/drivers/i2c/chips/it87.c b/drivers/i2c/chips/it87.c
new file mode 100644
index 0000000..3d484a7
--- /dev/null
+++ b/drivers/i2c/chips/it87.c
@@ -0,0 +1,1208 @@
+/*
+ it87.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring.
+
+ Supports: IT8705F Super I/O chip w/LPC interface & SMBus
+ IT8712F Super I/O chip w/LPC interface & SMBus
+ Sis950 A clone of the IT8705F
+
+ Copyright (C) 2001 Chris Gauthron <chrisg@0-in.com>
+ Largely inspired by lm78.c of the same package
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ djg@pdp8.net David Gesswein 7/18/01
+ Modified to fix bug with not all alarms enabled.
+ Added ability to read battery voltage and select temperature sensor
+ type at module load time.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+#include <asm/io.h>
+
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
+ 0x2e, 0x2f, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { 0x0290, I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_2(it87, it8712);
+
+#define REG 0x2e /* The register to read/write */
+#define DEV 0x07 /* Register: Logical device select */
+#define VAL 0x2f /* The value to read/write */
+#define PME 0x04 /* The device with the fan registers in it */
+#define DEVID 0x20 /* Register: Device ID */
+#define DEVREV 0x22 /* Register: Device Revision */
+
+static inline int
+superio_inb(int reg)
+{
+ outb(reg, REG);
+ return inb(VAL);
+}
+
+static int superio_inw(int reg)
+{
+ int val;
+ outb(reg++, REG);
+ val = inb(VAL) << 8;
+ outb(reg, REG);
+ val |= inb(VAL);
+ return val;
+}
+
+static inline void
+superio_select(void)
+{
+ outb(DEV, REG);
+ outb(PME, VAL);
+}
+
+static inline void
+superio_enter(void)
+{
+ outb(0x87, REG);
+ outb(0x01, REG);
+ outb(0x55, REG);
+ outb(0x55, REG);
+}
+
+static inline void
+superio_exit(void)
+{
+ outb(0x02, REG);
+ outb(0x02, VAL);
+}
+
+#define IT8712F_DEVID 0x8712
+#define IT8705F_DEVID 0x8705
+#define IT87_ACT_REG 0x30
+#define IT87_BASE_REG 0x60
+
+/* Update battery voltage after every reading if true */
+static int update_vbat;
+
+/* Not all BIOSes properly configure the PWM registers */
+static int fix_pwm_polarity;
+
+/* Chip Type */
+
+static u16 chip_type;
+
+/* Many IT87 constants specified below */
+
+/* Length of ISA address segment */
+#define IT87_EXTENT 8
+
+/* Where are the ISA address/data registers relative to the base address */
+#define IT87_ADDR_REG_OFFSET 5
+#define IT87_DATA_REG_OFFSET 6
+
+/*----- The IT87 registers -----*/
+
+#define IT87_REG_CONFIG 0x00
+
+#define IT87_REG_ALARM1 0x01
+#define IT87_REG_ALARM2 0x02
+#define IT87_REG_ALARM3 0x03
+
+#define IT87_REG_VID 0x0a
+#define IT87_REG_FAN_DIV 0x0b
+
+/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
+
+#define IT87_REG_FAN(nr) (0x0d + (nr))
+#define IT87_REG_FAN_MIN(nr) (0x10 + (nr))
+#define IT87_REG_FAN_MAIN_CTRL 0x13
+#define IT87_REG_FAN_CTL 0x14
+#define IT87_REG_PWM(nr) (0x15 + (nr))
+
+#define IT87_REG_VIN(nr) (0x20 + (nr))
+#define IT87_REG_TEMP(nr) (0x29 + (nr))
+
+#define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2)
+#define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2)
+#define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)
+#define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2)
+
+#define IT87_REG_I2C_ADDR 0x48
+
+#define IT87_REG_VIN_ENABLE 0x50
+#define IT87_REG_TEMP_ENABLE 0x51
+
+#define IT87_REG_CHIPID 0x58
+
+#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))
+#define IN_FROM_REG(val) ((val) * 16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+ if (rpm == 0)
+ return 255;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
+ 254);
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
+
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\
+ ((val)+500)/1000),-128,127))
+#define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*1000)
+
+#define ALARMS_FROM_REG(val) (val)
+
+#define PWM_TO_REG(val) ((val) >> 1)
+#define PWM_FROM_REG(val) (((val)&0x7f) << 1)
+
+static int DIV_TO_REG(int val)
+{
+ int answer = 0;
+ while ((val >>= 1) != 0)
+ answer++;
+ return answer;
+}
+#define DIV_FROM_REG(val) (1 << (val))
+
+
+/* For each registered IT87, we need to keep some data in memory. That
+ data is pointed to by it87_list[NR]->data. The structure itself is
+ dynamically allocated, at the same time when a new it87 client is
+ allocated. */
+struct it87_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ enum chips type;
+
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u8 in[9]; /* Register value */
+ u8 in_max[9]; /* Register value */
+ u8 in_min[9]; /* Register value */
+ u8 fan[3]; /* Register value */
+ u8 fan_min[3]; /* Register value */
+ u8 temp[3]; /* Register value */
+ u8 temp_high[3]; /* Register value */
+ u8 temp_low[3]; /* Register value */
+ u8 sensor; /* Register value */
+ u8 fan_div[3]; /* Register encoding, shifted right */
+ u8 vid; /* Register encoding, combined */
+ int vrm;
+ u32 alarms; /* Register encoding, combined */
+ u8 fan_main_ctrl; /* Register value */
+ u8 manual_pwm_ctl[3]; /* manual PWM value set by user */
+};
+
+
+static int it87_attach_adapter(struct i2c_adapter *adapter);
+static int it87_find(int *address);
+static int it87_detect(struct i2c_adapter *adapter, int address, int kind);
+static int it87_detach_client(struct i2c_client *client);
+
+static int it87_read_value(struct i2c_client *client, u8 register);
+static int it87_write_value(struct i2c_client *client, u8 register,
+ u8 value);
+static struct it87_data *it87_update_device(struct device *dev);
+static int it87_check_pwm(struct i2c_client *client);
+static void it87_init_client(struct i2c_client *client, struct it87_data *data);
+
+
+static struct i2c_driver it87_driver = {
+ .owner = THIS_MODULE,
+ .name = "it87",
+ .id = I2C_DRIVERID_IT87,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = it87_attach_adapter,
+ .detach_client = it87_detach_client,
+};
+
+static ssize_t show_in(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
+}
+
+static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
+}
+
+static ssize_t set_in_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[nr] = IN_TO_REG(val);
+ it87_write_value(client, IT87_REG_VIN_MIN(nr),
+ data->in_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_in_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[nr] = IN_TO_REG(val);
+ it87_write_value(client, IT87_REG_VIN_MAX(nr),
+ data->in_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define show_in_offset(offset) \
+static ssize_t \
+ show_in##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL);
+
+#define limit_in_offset(offset) \
+static ssize_t \
+ show_in##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_in_min(dev, buf, offset); \
+} \
+static ssize_t \
+ show_in##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_in_max(dev, buf, offset); \
+} \
+static ssize_t set_in##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_min(dev, buf, count, offset); \
+} \
+static ssize_t set_in##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_max(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in##offset##_max, set_in##offset##_max);
+
+show_in_offset(0);
+limit_in_offset(0);
+show_in_offset(1);
+limit_in_offset(1);
+show_in_offset(2);
+limit_in_offset(2);
+show_in_offset(3);
+limit_in_offset(3);
+show_in_offset(4);
+limit_in_offset(4);
+show_in_offset(5);
+limit_in_offset(5);
+show_in_offset(6);
+limit_in_offset(6);
+show_in_offset(7);
+limit_in_offset(7);
+show_in_offset(8);
+
+/* 3 temperatures */
+static ssize_t show_temp(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
+}
+static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr]));
+}
+static ssize_t set_temp_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_high[nr] = TEMP_TO_REG(val);
+ it87_write_value(client, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_temp_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_low[nr] = TEMP_TO_REG(val);
+ it87_write_value(client, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]);
+ up(&data->update_lock);
+ return count;
+}
+#define show_temp_offset(offset) \
+static ssize_t show_temp_##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, offset - 1); \
+} \
+static ssize_t \
+show_temp_##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_temp_max(dev, buf, offset - 1); \
+} \
+static ssize_t \
+show_temp_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_temp_min(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_max(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_min(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, NULL); \
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_max, set_temp_##offset##_max); \
+static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_min, set_temp_##offset##_min);
+
+show_temp_offset(1);
+show_temp_offset(2);
+show_temp_offset(3);
+
+static ssize_t show_sensor(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ u8 reg = data->sensor; /* In case the value is updated while we use it */
+
+ if (reg & (1 << nr))
+ return sprintf(buf, "3\n"); /* thermal diode */
+ if (reg & (8 << nr))
+ return sprintf(buf, "2\n"); /* thermistor */
+ return sprintf(buf, "0\n"); /* disabled */
+}
+static ssize_t set_sensor(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ data->sensor &= ~(1 << nr);
+ data->sensor &= ~(8 << nr);
+ /* 3 = thermal diode; 2 = thermistor; 0 = disabled */
+ if (val == 3)
+ data->sensor |= 1 << nr;
+ else if (val == 2)
+ data->sensor |= 8 << nr;
+ else if (val != 0) {
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+ it87_write_value(client, IT87_REG_TEMP_ENABLE, data->sensor);
+ up(&data->update_lock);
+ return count;
+}
+#define show_sensor_offset(offset) \
+static ssize_t show_sensor_##offset (struct device *dev, char *buf) \
+{ \
+ return show_sensor(dev, buf, offset - 1); \
+} \
+static ssize_t set_sensor_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_sensor(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
+ show_sensor_##offset, set_sensor_##offset);
+
+show_sensor_offset(1);
+show_sensor_offset(2);
+show_sensor_offset(3);
+
+/* 3 Fans */
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
+ DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf,"%d\n",
+ FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf,"%d\n", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0);
+}
+static ssize_t show_pwm(struct device *dev, char *buf, int nr)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]);
+}
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+ it87_write_value(client, IT87_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ int i, min[3];
+ u8 old;
+
+ down(&data->update_lock);
+ old = it87_read_value(client, IT87_REG_FAN_DIV);
+
+ for (i = 0; i < 3; i++)
+ min[i] = FAN_FROM_REG(data->fan_min[i], DIV_FROM_REG(data->fan_div[i]));
+
+ switch (nr) {
+ case 0:
+ case 1:
+ data->fan_div[nr] = DIV_TO_REG(val);
+ break;
+ case 2:
+ if (val < 8)
+ data->fan_div[nr] = 1;
+ else
+ data->fan_div[nr] = 3;
+ }
+ val = old & 0x80;
+ val |= (data->fan_div[0] & 0x07);
+ val |= (data->fan_div[1] & 0x07) << 3;
+ if (data->fan_div[2] == 3)
+ val |= 0x1 << 6;
+ it87_write_value(client, IT87_REG_FAN_DIV, val);
+
+ for (i = 0; i < 3; i++) {
+ data->fan_min[i]=FAN_TO_REG(min[i], DIV_FROM_REG(data->fan_div[i]));
+ it87_write_value(client, IT87_REG_FAN_MIN(i), data->fan_min[i]);
+ }
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_pwm_enable(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ if (val == 0) {
+ int tmp;
+ /* make sure the fan is on when in on/off mode */
+ tmp = it87_read_value(client, IT87_REG_FAN_CTL);
+ it87_write_value(client, IT87_REG_FAN_CTL, tmp | (1 << nr));
+ /* set on/off mode */
+ data->fan_main_ctrl &= ~(1 << nr);
+ it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+ } else if (val == 1) {
+ /* set SmartGuardian mode */
+ data->fan_main_ctrl |= (1 << nr);
+ it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+ /* set saved pwm value, clear FAN_CTLX PWM mode bit */
+ it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+ } else {
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_pwm(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ if (val < 0 || val > 255)
+ return -EINVAL;
+
+ down(&data->update_lock);
+ data->manual_pwm_ctl[nr] = val;
+ if (data->fan_main_ctrl & (1 << nr))
+ it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+ up(&data->update_lock);
+ return count;
+}
+
+#define show_fan_offset(offset) \
+static ssize_t show_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
+{ \
+ return show_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_div (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL); \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_min, set_fan_##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_div, set_fan_##offset##_div);
+
+show_fan_offset(1);
+show_fan_offset(2);
+show_fan_offset(3);
+
+#define show_pwm_offset(offset) \
+static ssize_t show_pwm##offset##_enable (struct device *dev, \
+ char *buf) \
+{ \
+ return show_pwm_enable(dev, buf, offset - 1); \
+} \
+static ssize_t show_pwm##offset (struct device *dev, char *buf) \
+{ \
+ return show_pwm(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm##offset##_enable (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm_enable(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_pwm##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
+ show_pwm##offset##_enable, \
+ set_pwm##offset##_enable); \
+static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
+ show_pwm##offset , set_pwm##offset );
+
+show_pwm_offset(1);
+show_pwm_offset(2);
+show_pwm_offset(3);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf,"%d\n", ALARMS_FROM_REG(data->alarms));
+}
+static DEVICE_ATTR(alarms, S_IRUGO | S_IWUSR, show_alarms, NULL);
+
+static ssize_t
+show_vrm_reg(struct device *dev, char *buf)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+static ssize_t
+store_vrm_reg(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+ data->vrm = val;
+
+ return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+#define device_create_file_vrm(client) \
+device_create_file(&client->dev, &dev_attr_vrm)
+
+static ssize_t
+show_vid_reg(struct device *dev, char *buf)
+{
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+#define device_create_file_vid(client) \
+device_create_file(&client->dev, &dev_attr_cpu0_vid)
+
+/* This function is called when:
+ * it87_driver is inserted (when this module is loaded), for each
+ available adapter
+ * when a new adapter is inserted (and it87_driver is still present) */
+static int it87_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, it87_detect);
+}
+
+/* SuperIO detection - will change normal_isa[0] if a chip is found */
+static int it87_find(int *address)
+{
+ int err = -ENODEV;
+
+ superio_enter();
+ chip_type = superio_inw(DEVID);
+ if (chip_type != IT8712F_DEVID
+ && chip_type != IT8705F_DEVID)
+ goto exit;
+
+ superio_select();
+ if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
+ pr_info("it87: Device not activated, skipping\n");
+ goto exit;
+ }
+
+ *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
+ if (*address == 0) {
+ pr_info("it87: Base address not set, skipping\n");
+ goto exit;
+ }
+
+ err = 0;
+ pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n",
+ chip_type, *address, superio_inb(DEVREV) & 0x0f);
+
+exit:
+ superio_exit();
+ return err;
+}
+
+/* This function is called by i2c_detect */
+int it87_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i;
+ struct i2c_client *new_client;
+ struct it87_data *data;
+ int err = 0;
+ const char *name = "";
+ int is_isa = i2c_is_isa_adapter(adapter);
+ int enable_pwm_interface;
+
+ if (!is_isa &&
+ !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto ERROR0;
+
+ /* Reserve the ISA region */
+ if (is_isa)
+ if (!request_region(address, IT87_EXTENT, it87_driver.name))
+ goto ERROR0;
+
+ /* Probe whether there is anything available on this address. Already
+ done for SMBus and Super-I/O clients */
+ if (kind < 0) {
+ if (is_isa && !chip_type) {
+#define REALLY_SLOW_IO
+ /* We need the timeouts for at least some IT87-like chips. But only
+ if we read 'undefined' registers. */
+ i = inb_p(address + 1);
+ if (inb_p(address + 2) != i
+ || inb_p(address + 3) != i
+ || inb_p(address + 7) != i) {
+ err = -ENODEV;
+ goto ERROR1;
+ }
+#undef REALLY_SLOW_IO
+
+ /* Let's just hope nothing breaks here */
+ i = inb_p(address + 5) & 0x7f;
+ outb_p(~i & 0x7f, address + 5);
+ if ((inb_p(address + 5) & 0x7f) != (~i & 0x7f)) {
+ outb_p(i, address + 5);
+ err = -ENODEV;
+ goto ERROR1;
+ }
+ }
+ }
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access it87_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct it87_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto ERROR1;
+ }
+ memset(data, 0, sizeof(struct it87_data));
+
+ new_client = &data->client;
+ if (is_isa)
+ init_MUTEX(&data->lock);
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &it87_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+
+ if (kind < 0) {
+ if ((it87_read_value(new_client, IT87_REG_CONFIG) & 0x80)
+ || (!is_isa
+ && it87_read_value(new_client, IT87_REG_I2C_ADDR) != address)) {
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ }
+
+ /* Determine the chip type. */
+ if (kind <= 0) {
+ i = it87_read_value(new_client, IT87_REG_CHIPID);
+ if (i == 0x90) {
+ kind = it87;
+ if ((is_isa) && (chip_type == IT8712F_DEVID))
+ kind = it8712;
+ }
+ else {
+ if (kind == 0)
+ dev_info(&adapter->dev,
+ "Ignoring 'force' parameter for unknown chip at "
+ "adapter %d, address 0x%02x\n",
+ i2c_adapter_id(adapter), address);
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ }
+
+ if (kind == it87) {
+ name = "it87";
+ } else if (kind == it8712) {
+ name = "it8712";
+ }
+
+ /* Fill in the remaining client fields and put it into the global list */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->type = kind;
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR2;
+
+ /* Check PWM configuration */
+ enable_pwm_interface = it87_check_pwm(new_client);
+
+ /* Initialize the IT87 chip */
+ it87_init_client(new_client, data);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in5_input);
+ device_create_file(&new_client->dev, &dev_attr_in6_input);
+ device_create_file(&new_client->dev, &dev_attr_in7_input);
+ device_create_file(&new_client->dev, &dev_attr_in8_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in5_min);
+ device_create_file(&new_client->dev, &dev_attr_in6_min);
+ device_create_file(&new_client->dev, &dev_attr_in7_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ device_create_file(&new_client->dev, &dev_attr_in5_max);
+ device_create_file(&new_client->dev, &dev_attr_in6_max);
+ device_create_file(&new_client->dev, &dev_attr_in7_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp3_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_type);
+ device_create_file(&new_client->dev, &dev_attr_temp2_type);
+ device_create_file(&new_client->dev, &dev_attr_temp3_type);
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan3_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan3_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_fan3_div);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ if (enable_pwm_interface) {
+ device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
+ device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ device_create_file(&new_client->dev, &dev_attr_pwm2);
+ device_create_file(&new_client->dev, &dev_attr_pwm3);
+ }
+
+ if (data->type == it8712) {
+ data->vrm = i2c_which_vrm();
+ device_create_file_vrm(new_client);
+ device_create_file_vid(new_client);
+ }
+
+ return 0;
+
+ERROR2:
+ kfree(data);
+ERROR1:
+ if (is_isa)
+ release_region(address, IT87_EXTENT);
+ERROR0:
+ return err;
+}
+
+static int it87_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ if(i2c_is_isa_client(client))
+ release_region(client->addr, IT87_EXTENT);
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+/* The SMBus locks itself, but ISA access must be locked explicitely!
+ We don't want to lock the whole ISA bus, so we lock each client
+ separately.
+ We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
+ would slow down the IT87 access and should not be necessary. */
+static int it87_read_value(struct i2c_client *client, u8 reg)
+{
+ struct it87_data *data = i2c_get_clientdata(client);
+
+ int res;
+ if (i2c_is_isa_client(client)) {
+ down(&data->lock);
+ outb_p(reg, client->addr + IT87_ADDR_REG_OFFSET);
+ res = inb_p(client->addr + IT87_DATA_REG_OFFSET);
+ up(&data->lock);
+ return res;
+ } else
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* The SMBus locks itself, but ISA access muse be locked explicitely!
+ We don't want to lock the whole ISA bus, so we lock each client
+ separately.
+ We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
+ would slow down the IT87 access and should not be necessary. */
+static int it87_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ struct it87_data *data = i2c_get_clientdata(client);
+
+ if (i2c_is_isa_client(client)) {
+ down(&data->lock);
+ outb_p(reg, client->addr + IT87_ADDR_REG_OFFSET);
+ outb_p(value, client->addr + IT87_DATA_REG_OFFSET);
+ up(&data->lock);
+ return 0;
+ } else
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Return 1 if and only if the PWM interface is safe to use */
+static int it87_check_pwm(struct i2c_client *client)
+{
+ /* Some BIOSes fail to correctly configure the IT87 fans. All fans off
+ * and polarity set to active low is sign that this is the case so we
+ * disable pwm control to protect the user. */
+ int tmp = it87_read_value(client, IT87_REG_FAN_CTL);
+ if ((tmp & 0x87) == 0) {
+ if (fix_pwm_polarity) {
+ /* The user asks us to attempt a chip reconfiguration.
+ * This means switching to active high polarity and
+ * inverting all fan speed values. */
+ int i;
+ u8 pwm[3];
+
+ for (i = 0; i < 3; i++)
+ pwm[i] = it87_read_value(client,
+ IT87_REG_PWM(i));
+
+ /* If any fan is in automatic pwm mode, the polarity
+ * might be correct, as suspicious as it seems, so we
+ * better don't change anything (but still disable the
+ * PWM interface). */
+ if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {
+ dev_info(&client->dev, "Reconfiguring PWM to "
+ "active high polarity\n");
+ it87_write_value(client, IT87_REG_FAN_CTL,
+ tmp | 0x87);
+ for (i = 0; i < 3; i++)
+ it87_write_value(client,
+ IT87_REG_PWM(i),
+ 0x7f & ~pwm[i]);
+ return 1;
+ }
+
+ dev_info(&client->dev, "PWM configuration is "
+ "too broken to be fixed\n");
+ }
+
+ dev_info(&client->dev, "Detected broken BIOS "
+ "defaults, disabling PWM interface\n");
+ return 0;
+ } else if (fix_pwm_polarity) {
+ dev_info(&client->dev, "PWM configuration looks "
+ "sane, won't touch\n");
+ }
+
+ return 1;
+}
+
+/* Called when we have found a new IT87. */
+static void it87_init_client(struct i2c_client *client, struct it87_data *data)
+{
+ int tmp, i;
+
+ /* initialize to sane defaults:
+ * - if the chip is in manual pwm mode, this will be overwritten with
+ * the actual settings on the chip (so in this case, initialization
+ * is not needed)
+ * - if in automatic or on/off mode, we could switch to manual mode,
+ * read the registers and set manual_pwm_ctl accordingly, but currently
+ * this is not implemented, so we initialize to something sane */
+ for (i = 0; i < 3; i++) {
+ data->manual_pwm_ctl[i] = 0xff;
+ }
+
+ /* Check if temperature channnels are reset manually or by some reason */
+ tmp = it87_read_value(client, IT87_REG_TEMP_ENABLE);
+ if ((tmp & 0x3f) == 0) {
+ /* Temp1,Temp3=thermistor; Temp2=thermal diode */
+ tmp = (tmp & 0xc0) | 0x2a;
+ it87_write_value(client, IT87_REG_TEMP_ENABLE, tmp);
+ }
+ data->sensor = tmp;
+
+ /* Check if voltage monitors are reset manually or by some reason */
+ tmp = it87_read_value(client, IT87_REG_VIN_ENABLE);
+ if ((tmp & 0xff) == 0) {
+ /* Enable all voltage monitors */
+ it87_write_value(client, IT87_REG_VIN_ENABLE, 0xff);
+ }
+
+ /* Check if tachometers are reset manually or by some reason */
+ data->fan_main_ctrl = it87_read_value(client, IT87_REG_FAN_MAIN_CTRL);
+ if ((data->fan_main_ctrl & 0x70) == 0) {
+ /* Enable all fan tachometers */
+ data->fan_main_ctrl |= 0x70;
+ it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+ }
+
+ /* Set current fan mode registers and the default settings for the
+ * other mode registers */
+ for (i = 0; i < 3; i++) {
+ if (data->fan_main_ctrl & (1 << i)) {
+ /* pwm mode */
+ tmp = it87_read_value(client, IT87_REG_PWM(i));
+ if (tmp & 0x80) {
+ /* automatic pwm - not yet implemented, but
+ * leave the settings made by the BIOS alone
+ * until a change is requested via the sysfs
+ * interface */
+ } else {
+ /* manual pwm */
+ data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp);
+ }
+ }
+ }
+
+ /* Start monitoring */
+ it87_write_value(client, IT87_REG_CONFIG,
+ (it87_read_value(client, IT87_REG_CONFIG) & 0x36)
+ | (update_vbat ? 0x41 : 0x01));
+}
+
+static struct it87_data *it87_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+
+ if (update_vbat) {
+ /* Cleared after each update, so reenable. Value
+ returned by this read will be previous value */
+ it87_write_value(client, IT87_REG_CONFIG,
+ it87_read_value(client, IT87_REG_CONFIG) | 0x40);
+ }
+ for (i = 0; i <= 7; i++) {
+ data->in[i] =
+ it87_read_value(client, IT87_REG_VIN(i));
+ data->in_min[i] =
+ it87_read_value(client, IT87_REG_VIN_MIN(i));
+ data->in_max[i] =
+ it87_read_value(client, IT87_REG_VIN_MAX(i));
+ }
+ data->in[8] =
+ it87_read_value(client, IT87_REG_VIN(8));
+ /* Temperature sensor doesn't have limit registers, set
+ to min and max value */
+ data->in_min[8] = 0;
+ data->in_max[8] = 255;
+
+ for (i = 0; i < 3; i++) {
+ data->fan[i] =
+ it87_read_value(client, IT87_REG_FAN(i));
+ data->fan_min[i] =
+ it87_read_value(client, IT87_REG_FAN_MIN(i));
+ }
+ for (i = 0; i < 3; i++) {
+ data->temp[i] =
+ it87_read_value(client, IT87_REG_TEMP(i));
+ data->temp_high[i] =
+ it87_read_value(client, IT87_REG_TEMP_HIGH(i));
+ data->temp_low[i] =
+ it87_read_value(client, IT87_REG_TEMP_LOW(i));
+ }
+
+ i = it87_read_value(client, IT87_REG_FAN_DIV);
+ data->fan_div[0] = i & 0x07;
+ data->fan_div[1] = (i >> 3) & 0x07;
+ data->fan_div[2] = (i & 0x40) ? 3 : 1;
+
+ data->alarms =
+ it87_read_value(client, IT87_REG_ALARM1) |
+ (it87_read_value(client, IT87_REG_ALARM2) << 8) |
+ (it87_read_value(client, IT87_REG_ALARM3) << 16);
+ data->fan_main_ctrl = it87_read_value(client, IT87_REG_FAN_MAIN_CTRL);
+
+ data->sensor = it87_read_value(client, IT87_REG_TEMP_ENABLE);
+ /* The 8705 does not have VID capability */
+ if (data->type == it8712) {
+ data->vid = it87_read_value(client, IT87_REG_VID);
+ data->vid &= 0x1f;
+ }
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sm_it87_init(void)
+{
+ int addr;
+
+ if (!it87_find(&addr)) {
+ normal_isa[0] = addr;
+ }
+ return i2c_add_driver(&it87_driver);
+}
+
+static void __exit sm_it87_exit(void)
+{
+ i2c_del_driver(&it87_driver);
+}
+
+
+MODULE_AUTHOR("Chris Gauthron <chrisg@0-in.com>");
+MODULE_DESCRIPTION("IT8705F, IT8712F, Sis950 driver");
+module_param(update_vbat, bool, 0);
+MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
+module_param(fix_pwm_polarity, bool, 0);
+MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)");
+MODULE_LICENSE("GPL");
+
+module_init(sm_it87_init);
+module_exit(sm_it87_exit);
diff --git a/drivers/i2c/chips/lm63.c b/drivers/i2c/chips/lm63.c
new file mode 100644
index 0000000..14cc5af
--- /dev/null
+++ b/drivers/i2c/chips/lm63.c
@@ -0,0 +1,581 @@
+/*
+ * lm63.c - driver for the National Semiconductor LM63 temperature sensor
+ * with integrated fan control
+ * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+ * Based on the lm90 driver.
+ *
+ * The LM63 is a sensor chip made by National Semiconductor. It measures
+ * two temperatures (its own and one external one) and the speed of one
+ * fan, those speed it can additionally control. Complete datasheet can be
+ * obtained from National's website at:
+ * http://www.national.com/pf/LM/LM63.html
+ *
+ * The LM63 is basically an LM86 with fan speed monitoring and control
+ * capabilities added. It misses some of the LM86 features though:
+ * - No low limit for local temperature.
+ * - No critical limit for local temperature.
+ * - Critical limit for remote temperature can be changed only once. We
+ * will consider that the critical limit is read-only.
+ *
+ * The datasheet isn't very clear about what the tachometer reading is.
+ * I had a explanation from National Semiconductor though. The two lower
+ * bits of the read value have to be masked out. The value is still 16 bit
+ * in width.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/*
+ * Addresses to scan
+ * Address is fully defined internally and cannot be changed.
+ */
+
+static unsigned short normal_i2c[] = { 0x4c, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_1(lm63);
+
+/*
+ * The LM63 registers
+ */
+
+#define LM63_REG_CONFIG1 0x03
+#define LM63_REG_CONFIG2 0xBF
+#define LM63_REG_CONFIG_FAN 0x4A
+
+#define LM63_REG_TACH_COUNT_MSB 0x47
+#define LM63_REG_TACH_COUNT_LSB 0x46
+#define LM63_REG_TACH_LIMIT_MSB 0x49
+#define LM63_REG_TACH_LIMIT_LSB 0x48
+
+#define LM63_REG_PWM_VALUE 0x4C
+#define LM63_REG_PWM_FREQ 0x4D
+
+#define LM63_REG_LOCAL_TEMP 0x00
+#define LM63_REG_LOCAL_HIGH 0x05
+
+#define LM63_REG_REMOTE_TEMP_MSB 0x01
+#define LM63_REG_REMOTE_TEMP_LSB 0x10
+#define LM63_REG_REMOTE_OFFSET_MSB 0x11
+#define LM63_REG_REMOTE_OFFSET_LSB 0x12
+#define LM63_REG_REMOTE_HIGH_MSB 0x07
+#define LM63_REG_REMOTE_HIGH_LSB 0x13
+#define LM63_REG_REMOTE_LOW_MSB 0x08
+#define LM63_REG_REMOTE_LOW_LSB 0x14
+#define LM63_REG_REMOTE_TCRIT 0x19
+#define LM63_REG_REMOTE_TCRIT_HYST 0x21
+
+#define LM63_REG_ALERT_STATUS 0x02
+#define LM63_REG_ALERT_MASK 0x16
+
+#define LM63_REG_MAN_ID 0xFE
+#define LM63_REG_CHIP_ID 0xFF
+
+/*
+ * Conversions and various macros
+ * For tachometer counts, the LM63 uses 16-bit values.
+ * For local temperature and high limit, remote critical limit and hysteresis
+ * value, it uses signed 8-bit values with LSB = 1 degree Celcius.
+ * For remote temperature, low and high limits, it uses signed 11-bit values
+ * with LSB = 0.125 degree Celcius, left-justified in 16-bit registers.
+ */
+
+#define FAN_FROM_REG(reg) ((reg) == 0xFFFC || (reg) == 0 ? 0 : \
+ 5400000 / (reg))
+#define FAN_TO_REG(val) ((val) <= 82 ? 0xFFFC : \
+ (5400000 / (val)) & 0xFFFC)
+#define TEMP8_FROM_REG(reg) ((reg) * 1000)
+#define TEMP8_TO_REG(val) ((val) <= -128000 ? -128 : \
+ (val) >= 127000 ? 127 : \
+ (val) < 0 ? ((val) - 500) / 1000 : \
+ ((val) + 500) / 1000)
+#define TEMP11_FROM_REG(reg) ((reg) / 32 * 125)
+#define TEMP11_TO_REG(val) ((val) <= -128000 ? 0x8000 : \
+ (val) >= 127875 ? 0x7FE0 : \
+ (val) < 0 ? ((val) - 62) / 125 * 32 : \
+ ((val) + 62) / 125 * 32)
+#define HYST_TO_REG(val) ((val) <= 0 ? 0 : \
+ (val) >= 127000 ? 127 : \
+ ((val) + 500) / 1000)
+
+/*
+ * Functions declaration
+ */
+
+static int lm63_attach_adapter(struct i2c_adapter *adapter);
+static int lm63_detach_client(struct i2c_client *client);
+
+static struct lm63_data *lm63_update_device(struct device *dev);
+
+static int lm63_detect(struct i2c_adapter *adapter, int address, int kind);
+static void lm63_init_client(struct i2c_client *client);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver lm63_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm63",
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm63_attach_adapter,
+ .detach_client = lm63_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm63_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* registers values */
+ u8 config, config_fan;
+ u16 fan1_input;
+ u16 fan1_low;
+ u8 pwm1_freq;
+ u8 pwm1_value;
+ s8 temp1_input;
+ s8 temp1_high;
+ s16 temp2_input;
+ s16 temp2_high;
+ s16 temp2_low;
+ s8 temp2_crit;
+ u8 temp2_crit_hyst;
+ u8 alarms;
+};
+
+/*
+ * Sysfs callback functions and files
+ */
+
+#define show_fan(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm63_data *data = lm63_update_device(dev); \
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->value)); \
+}
+show_fan(fan1_input);
+show_fan(fan1_low);
+
+static ssize_t set_fan1_low(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm63_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan1_low = FAN_TO_REG(val);
+ i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB,
+ data->fan1_low & 0xFF);
+ i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB,
+ data->fan1_low >> 8);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_pwm1(struct device *dev, char *buf)
+{
+ struct lm63_data *data = lm63_update_device(dev);
+ return sprintf(buf, "%d\n", data->pwm1_value >= 2 * data->pwm1_freq ?
+ 255 : (data->pwm1_value * 255 + data->pwm1_freq) /
+ (2 * data->pwm1_freq));
+}
+
+static ssize_t set_pwm1(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm63_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (!(data->config_fan & 0x20)) /* register is read-only */
+ return -EPERM;
+
+ val = simple_strtoul(buf, NULL, 10);
+ down(&data->update_lock);
+ data->pwm1_value = val <= 0 ? 0 :
+ val >= 255 ? 2 * data->pwm1_freq :
+ (val * data->pwm1_freq * 2 + 127) / 255;
+ i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_pwm1_enable(struct device *dev, char *buf)
+{
+ struct lm63_data *data = lm63_update_device(dev);
+ return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2);
+}
+
+#define show_temp8(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm63_data *data = lm63_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->value)); \
+}
+#define show_temp11(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm63_data *data = lm63_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->value)); \
+}
+show_temp8(temp1_input);
+show_temp8(temp1_high);
+show_temp11(temp2_input);
+show_temp11(temp2_high);
+show_temp11(temp2_low);
+show_temp8(temp2_crit);
+
+#define set_temp8(value, reg) \
+static ssize_t set_##value(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm63_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = TEMP8_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+#define set_temp11(value, reg_msb, reg_lsb) \
+static ssize_t set_##value(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm63_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = TEMP11_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, reg_msb, data->value >> 8); \
+ i2c_smbus_write_byte_data(client, reg_lsb, data->value & 0xff); \
+ up(&data->update_lock); \
+ return count; \
+}
+set_temp8(temp1_high, LM63_REG_LOCAL_HIGH);
+set_temp11(temp2_high, LM63_REG_REMOTE_HIGH_MSB, LM63_REG_REMOTE_HIGH_LSB);
+set_temp11(temp2_low, LM63_REG_REMOTE_LOW_MSB, LM63_REG_REMOTE_LOW_LSB);
+
+/* Hysteresis register holds a relative value, while we want to present
+ an absolute to user-space */
+static ssize_t show_temp2_crit_hyst(struct device *dev, char *buf)
+{
+ struct lm63_data *data = lm63_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp2_crit)
+ - TEMP8_FROM_REG(data->temp2_crit_hyst));
+}
+
+/* And now the other way around, user-space provides an absolute
+ hysteresis value and we have to store a relative one */
+static ssize_t set_temp2_crit_hyst(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm63_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+ long hyst;
+
+ down(&data->update_lock);
+ hyst = TEMP8_FROM_REG(data->temp2_crit) - val;
+ i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST,
+ HYST_TO_REG(hyst));
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct lm63_data *data = lm63_update_device(dev);
+ return sprintf(buf, "%u\n", data->alarms);
+}
+
+static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan1_input, NULL);
+static DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan1_low,
+ set_fan1_low);
+
+static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1);
+static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL);
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1_input, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp1_high,
+ set_temp1_high);
+
+static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp2_input, NULL);
+static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp2_low,
+ set_temp2_low);
+static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp2_high,
+ set_temp2_high);
+static DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp2_crit, NULL);
+static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst,
+ set_temp2_crit_hyst);
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+/*
+ * Real code
+ */
+
+static int lm63_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm63_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct lm63_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct lm63_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm63_data));
+
+ /* The common I2C client data is placed right before the
+ LM63-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm63_driver;
+ new_client->flags = 0;
+
+ /* Default to an LM63 if forced */
+ if (kind == 0)
+ kind = lm63;
+
+ if (kind < 0) { /* must identify */
+ u8 man_id, chip_id, reg_config1, reg_config2;
+ u8 reg_alert_status, reg_alert_mask;
+
+ man_id = i2c_smbus_read_byte_data(new_client,
+ LM63_REG_MAN_ID);
+ chip_id = i2c_smbus_read_byte_data(new_client,
+ LM63_REG_CHIP_ID);
+ reg_config1 = i2c_smbus_read_byte_data(new_client,
+ LM63_REG_CONFIG1);
+ reg_config2 = i2c_smbus_read_byte_data(new_client,
+ LM63_REG_CONFIG2);
+ reg_alert_status = i2c_smbus_read_byte_data(new_client,
+ LM63_REG_ALERT_STATUS);
+ reg_alert_mask = i2c_smbus_read_byte_data(new_client,
+ LM63_REG_ALERT_MASK);
+
+ if (man_id == 0x01 /* National Semiconductor */
+ && chip_id == 0x41 /* LM63 */
+ && (reg_config1 & 0x18) == 0x00
+ && (reg_config2 & 0xF8) == 0x00
+ && (reg_alert_status & 0x20) == 0x00
+ && (reg_alert_mask & 0xA4) == 0xA4) {
+ kind = lm63;
+ } else { /* failed */
+ dev_dbg(&adapter->dev, "Unsupported chip "
+ "(man_id=0x%02X, chip_id=0x%02X).\n",
+ man_id, chip_id);
+ goto exit_free;
+ }
+ }
+
+ strlcpy(new_client->name, "lm63", I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the LM63 chip */
+ lm63_init_client(new_client);
+
+ /* Register sysfs hooks */
+ if (data->config & 0x04) { /* tachometer enabled */
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ }
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit_hyst);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+/* Idealy we shouldn't have to initialize anything, since the BIOS
+ should have taken care of everything */
+static void lm63_init_client(struct i2c_client *client)
+{
+ struct lm63_data *data = i2c_get_clientdata(client);
+
+ data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1);
+ data->config_fan = i2c_smbus_read_byte_data(client,
+ LM63_REG_CONFIG_FAN);
+
+ /* Start converting if needed */
+ if (data->config & 0x40) { /* standby */
+ dev_dbg(&client->dev, "Switching to operational mode");
+ data->config &= 0xA7;
+ i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1,
+ data->config);
+ }
+
+ /* We may need pwm1_freq before ever updating the client data */
+ data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ);
+ if (data->pwm1_freq == 0)
+ data->pwm1_freq = 1;
+
+ /* Show some debug info about the LM63 configuration */
+ dev_dbg(&client->dev, "Alert/tach pin configured for %s\n",
+ (data->config & 0x04) ? "tachometer input" :
+ "alert output");
+ dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n",
+ (data->config_fan & 0x08) ? "1.4" : "360",
+ ((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq);
+ dev_dbg(&client->dev, "PWM output active %s, %s mode\n",
+ (data->config_fan & 0x10) ? "low" : "high",
+ (data->config_fan & 0x20) ? "manual" : "auto");
+}
+
+static int lm63_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static struct lm63_data *lm63_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm63_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+ if (data->config & 0x04) { /* tachometer enabled */
+ /* order matters for fan1_input */
+ data->fan1_input = i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_COUNT_LSB) & 0xFC;
+ data->fan1_input |= i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_COUNT_MSB) << 8;
+ data->fan1_low = (i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_LIMIT_LSB) & 0xFC)
+ | (i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_LIMIT_MSB) << 8);
+ }
+
+ data->pwm1_freq = i2c_smbus_read_byte_data(client,
+ LM63_REG_PWM_FREQ);
+ if (data->pwm1_freq == 0)
+ data->pwm1_freq = 1;
+ data->pwm1_value = i2c_smbus_read_byte_data(client,
+ LM63_REG_PWM_VALUE);
+
+ data->temp1_input = i2c_smbus_read_byte_data(client,
+ LM63_REG_LOCAL_TEMP);
+ data->temp1_high = i2c_smbus_read_byte_data(client,
+ LM63_REG_LOCAL_HIGH);
+
+ /* order matters for temp2_input */
+ data->temp2_input = i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TEMP_MSB) << 8;
+ data->temp2_input |= i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TEMP_LSB);
+ data->temp2_high = (i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_HIGH_MSB) << 8)
+ | i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_HIGH_LSB);
+ data->temp2_low = (i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_LOW_MSB) << 8)
+ | i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_LOW_LSB);
+ data->temp2_crit = i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TCRIT);
+ data->temp2_crit_hyst = i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TCRIT_HYST);
+
+ data->alarms = i2c_smbus_read_byte_data(client,
+ LM63_REG_ALERT_STATUS) & 0x7F;
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_lm63_init(void)
+{
+ return i2c_add_driver(&lm63_driver);
+}
+
+static void __exit sensors_lm63_exit(void)
+{
+ i2c_del_driver(&lm63_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM63 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm63_init);
+module_exit(sensors_lm63_exit);
diff --git a/drivers/i2c/chips/lm75.c b/drivers/i2c/chips/lm75.c
new file mode 100644
index 0000000..0e86cc8
--- /dev/null
+++ b/drivers/i2c/chips/lm75.c
@@ -0,0 +1,297 @@
+/*
+ lm75.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include "lm75.h"
+
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
+ 0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(lm75);
+
+/* Many LM75 constants specified below */
+
+/* The LM75 registers */
+#define LM75_REG_TEMP 0x00
+#define LM75_REG_CONF 0x01
+#define LM75_REG_TEMP_HYST 0x02
+#define LM75_REG_TEMP_OS 0x03
+
+/* Each client has this additional data */
+struct lm75_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+ u16 temp_input; /* Register values */
+ u16 temp_max;
+ u16 temp_hyst;
+};
+
+static int lm75_attach_adapter(struct i2c_adapter *adapter);
+static int lm75_detect(struct i2c_adapter *adapter, int address, int kind);
+static void lm75_init_client(struct i2c_client *client);
+static int lm75_detach_client(struct i2c_client *client);
+static int lm75_read_value(struct i2c_client *client, u8 reg);
+static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value);
+static struct lm75_data *lm75_update_device(struct device *dev);
+
+
+/* This is the driver that will be inserted */
+static struct i2c_driver lm75_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm75",
+ .id = I2C_DRIVERID_LM75,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm75_attach_adapter,
+ .detach_client = lm75_detach_client,
+};
+
+#define show(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm75_data *data = lm75_update_device(dev); \
+ return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->value)); \
+}
+show(temp_max);
+show(temp_hyst);
+show(temp_input);
+
+#define set(value, reg) \
+static ssize_t set_##value(struct device *dev, const char *buf, size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm75_data *data = i2c_get_clientdata(client); \
+ int temp = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = LM75_TEMP_TO_REG(temp); \
+ lm75_write_value(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+set(temp_max, LM75_REG_TEMP_OS);
+set(temp_hyst, LM75_REG_TEMP_HYST);
+
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, set_temp_max);
+static DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp_hyst, set_temp_hyst);
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL);
+
+static int lm75_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm75_detect);
+}
+
+/* This function is called by i2c_detect */
+static int lm75_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i;
+ struct i2c_client *new_client;
+ struct lm75_data *data;
+ int err = 0;
+ const char *name = "";
+
+ /* Make sure we aren't probing the ISA bus!! This is just a safety check
+ at this moment; i2c_detect really won't call us. */
+#ifdef DEBUG
+ if (i2c_is_isa_adapter(adapter)) {
+ dev_dbg(&adapter->dev,
+ "lm75_detect called for an ISA bus adapter?!?\n");
+ goto exit;
+ }
+#endif
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_SMBUS_WORD_DATA))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access lm75_{read,write}_value. */
+ if (!(data = kmalloc(sizeof(struct lm75_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm75_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm75_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. There is no identification-
+ dedicated register so we have to rely on several tricks:
+ unused bits, registers cycling over 8-address boundaries,
+ addresses 0x04-0x07 returning the last read value.
+ The cycling+unused addresses combination is not tested,
+ since it would significantly slow the detection down and would
+ hardly add any value. */
+ if (kind < 0) {
+ int cur, conf, hyst, os;
+
+ /* Unused addresses */
+ cur = i2c_smbus_read_word_data(new_client, 0);
+ conf = i2c_smbus_read_byte_data(new_client, 1);
+ hyst = i2c_smbus_read_word_data(new_client, 2);
+ if (i2c_smbus_read_word_data(new_client, 4) != hyst
+ || i2c_smbus_read_word_data(new_client, 5) != hyst
+ || i2c_smbus_read_word_data(new_client, 6) != hyst
+ || i2c_smbus_read_word_data(new_client, 7) != hyst)
+ goto exit_free;
+ os = i2c_smbus_read_word_data(new_client, 3);
+ if (i2c_smbus_read_word_data(new_client, 4) != os
+ || i2c_smbus_read_word_data(new_client, 5) != os
+ || i2c_smbus_read_word_data(new_client, 6) != os
+ || i2c_smbus_read_word_data(new_client, 7) != os)
+ goto exit_free;
+
+ /* Unused bits */
+ if (conf & 0xe0)
+ goto exit_free;
+
+ /* Addresses cycling */
+ for (i = 8; i < 0xff; i += 8)
+ if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
+ || i2c_smbus_read_word_data(new_client, i + 2) != hyst
+ || i2c_smbus_read_word_data(new_client, i + 3) != os)
+ goto exit_free;
+ }
+
+ /* Determine the chip type - only one kind supported! */
+ if (kind <= 0)
+ kind = lm75;
+
+ if (kind == lm75) {
+ name = "lm75";
+ }
+
+ /* Fill in the remaining client fields and put it into the global list */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the LM75 chip */
+ lm75_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int lm75_detach_client(struct i2c_client *client)
+{
+ i2c_detach_client(client);
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+/* All registers are word-sized, except for the configuration register.
+ LM75 uses a high-byte first convention, which is exactly opposite to
+ the usual practice. */
+static int lm75_read_value(struct i2c_client *client, u8 reg)
+{
+ if (reg == LM75_REG_CONF)
+ return i2c_smbus_read_byte_data(client, reg);
+ else
+ return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+/* All registers are word-sized, except for the configuration register.
+ LM75 uses a high-byte first convention, which is exactly opposite to
+ the usual practice. */
+static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+ if (reg == LM75_REG_CONF)
+ return i2c_smbus_write_byte_data(client, reg, value);
+ else
+ return i2c_smbus_write_word_data(client, reg, swab16(value));
+}
+
+static void lm75_init_client(struct i2c_client *client)
+{
+ /* Initialize the LM75 chip */
+ lm75_write_value(client, LM75_REG_CONF, 0);
+}
+
+static struct lm75_data *lm75_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm75_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ dev_dbg(&client->dev, "Starting lm75 update\n");
+
+ data->temp_input = lm75_read_value(client, LM75_REG_TEMP);
+ data->temp_max = lm75_read_value(client, LM75_REG_TEMP_OS);
+ data->temp_hyst = lm75_read_value(client, LM75_REG_TEMP_HYST);
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_lm75_init(void)
+{
+ return i2c_add_driver(&lm75_driver);
+}
+
+static void __exit sensors_lm75_exit(void)
+{
+ i2c_del_driver(&lm75_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>");
+MODULE_DESCRIPTION("LM75 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm75_init);
+module_exit(sensors_lm75_exit);
diff --git a/drivers/i2c/chips/lm75.h b/drivers/i2c/chips/lm75.h
new file mode 100644
index 0000000..63e3f2f
--- /dev/null
+++ b/drivers/i2c/chips/lm75.h
@@ -0,0 +1,49 @@
+/*
+ lm75.h - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 2003 Mark M. Hoffman <mhoffman@lightlink.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ This file contains common code for encoding/decoding LM75 type
+ temperature readings, which are emulated by many of the chips
+ we support. As the user is unlikely to load more than one driver
+ which contains this code, we don't worry about the wasted space.
+*/
+
+#include <linux/i2c-sensor.h>
+
+/* straight from the datasheet */
+#define LM75_TEMP_MIN (-55000)
+#define LM75_TEMP_MAX 125000
+
+/* TEMP: 0.001C/bit (-55C to +125C)
+ REG: (0.5C/bit, two's complement) << 7 */
+static inline u16 LM75_TEMP_TO_REG(int temp)
+{
+ int ntemp = SENSORS_LIMIT(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);
+ ntemp += (ntemp<0 ? -250 : 250);
+ return (u16)((ntemp / 500) << 7);
+}
+
+static inline int LM75_TEMP_FROM_REG(u16 reg)
+{
+ /* use integer division instead of equivalent right shift to
+ guarantee arithmetic shift and preserve the sign */
+ return ((s16)reg / 128) * 500;
+}
+
diff --git a/drivers/i2c/chips/lm77.c b/drivers/i2c/chips/lm77.c
new file mode 100644
index 0000000..f56b7a3
--- /dev/null
+++ b/drivers/i2c/chips/lm77.c
@@ -0,0 +1,421 @@
+/*
+ lm77.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+
+ Copyright (c) 2004 Andras BALI <drewie@freemail.hu>
+
+ Heavily based on lm75.c by Frodo Looijaard <frodol@dds.nl>. The LM77
+ is a temperature sensor and thermal window comparator with 0.5 deg
+ resolution made by National Semiconductor. Complete datasheet can be
+ obtained at their site:
+ http://www.national.com/pf/LM/LM77.html
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(lm77);
+
+/* The LM77 registers */
+#define LM77_REG_TEMP 0x00
+#define LM77_REG_CONF 0x01
+#define LM77_REG_TEMP_HYST 0x02
+#define LM77_REG_TEMP_CRIT 0x03
+#define LM77_REG_TEMP_MIN 0x04
+#define LM77_REG_TEMP_MAX 0x05
+
+/* Each client has this additional data */
+struct lm77_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid;
+ unsigned long last_updated; /* In jiffies */
+ int temp_input; /* Temperatures */
+ int temp_crit;
+ int temp_min;
+ int temp_max;
+ int temp_hyst;
+ u8 alarms;
+};
+
+static int lm77_attach_adapter(struct i2c_adapter *adapter);
+static int lm77_detect(struct i2c_adapter *adapter, int address, int kind);
+static void lm77_init_client(struct i2c_client *client);
+static int lm77_detach_client(struct i2c_client *client);
+static u16 lm77_read_value(struct i2c_client *client, u8 reg);
+static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value);
+
+static struct lm77_data *lm77_update_device(struct device *dev);
+
+
+/* This is the driver that will be inserted */
+static struct i2c_driver lm77_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm77",
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm77_attach_adapter,
+ .detach_client = lm77_detach_client,
+};
+
+/* straight from the datasheet */
+#define LM77_TEMP_MIN (-55000)
+#define LM77_TEMP_MAX 125000
+
+/* In the temperature registers, the low 3 bits are not part of the
+ temperature values; they are the status bits. */
+static inline u16 LM77_TEMP_TO_REG(int temp)
+{
+ int ntemp = SENSORS_LIMIT(temp, LM77_TEMP_MIN, LM77_TEMP_MAX);
+ return (u16)((ntemp / 500) * 8);
+}
+
+static inline int LM77_TEMP_FROM_REG(u16 reg)
+{
+ return ((int)reg / 8) * 500;
+}
+
+/* sysfs stuff */
+
+/* read routines for temperature limits */
+#define show(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm77_data *data = lm77_update_device(dev); \
+ return sprintf(buf, "%d\n", data->value); \
+}
+
+show(temp_input);
+show(temp_crit);
+show(temp_min);
+show(temp_max);
+show(alarms);
+
+/* read routines for hysteresis values */
+static ssize_t show_temp_crit_hyst(struct device *dev, char *buf)
+{
+ struct lm77_data *data = lm77_update_device(dev);
+ return sprintf(buf, "%d\n", data->temp_crit - data->temp_hyst);
+}
+static ssize_t show_temp_min_hyst(struct device *dev, char *buf)
+{
+ struct lm77_data *data = lm77_update_device(dev);
+ return sprintf(buf, "%d\n", data->temp_min + data->temp_hyst);
+}
+static ssize_t show_temp_max_hyst(struct device *dev, char *buf)
+{
+ struct lm77_data *data = lm77_update_device(dev);
+ return sprintf(buf, "%d\n", data->temp_max - data->temp_hyst);
+}
+
+/* write routines */
+#define set(value, reg) \
+static ssize_t set_##value(struct device *dev, const char *buf, size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm77_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = val; \
+ lm77_write_value(client, reg, LM77_TEMP_TO_REG(data->value)); \
+ up(&data->update_lock); \
+ return count; \
+}
+
+set(temp_min, LM77_REG_TEMP_MIN);
+set(temp_max, LM77_REG_TEMP_MAX);
+
+/* hysteresis is stored as a relative value on the chip, so it has to be
+ converted first */
+static ssize_t set_temp_crit_hyst(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm77_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_hyst = data->temp_crit - val;
+ lm77_write_value(client, LM77_REG_TEMP_HYST,
+ LM77_TEMP_TO_REG(data->temp_hyst));
+ up(&data->update_lock);
+ return count;
+}
+
+/* preserve hysteresis when setting T_crit */
+static ssize_t set_temp_crit(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm77_data *data = i2c_get_clientdata(client);
+ long val = simple_strtoul(buf, NULL, 10);
+ int oldcrithyst;
+
+ down(&data->update_lock);
+ oldcrithyst = data->temp_crit - data->temp_hyst;
+ data->temp_crit = val;
+ data->temp_hyst = data->temp_crit - oldcrithyst;
+ lm77_write_value(client, LM77_REG_TEMP_CRIT,
+ LM77_TEMP_TO_REG(data->temp_crit));
+ lm77_write_value(client, LM77_REG_TEMP_HYST,
+ LM77_TEMP_TO_REG(data->temp_hyst));
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO,
+ show_temp_input, NULL);
+static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO,
+ show_temp_crit, set_temp_crit);
+static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
+ show_temp_min, set_temp_min);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+ show_temp_max, set_temp_max);
+
+static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO,
+ show_temp_crit_hyst, set_temp_crit_hyst);
+static DEVICE_ATTR(temp1_min_hyst, S_IRUGO,
+ show_temp_min_hyst, NULL);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
+ show_temp_max_hyst, NULL);
+
+static DEVICE_ATTR(alarms, S_IRUGO,
+ show_alarms, NULL);
+
+static int lm77_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm77_detect);
+}
+
+/* This function is called by i2c_detect */
+static int lm77_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct lm77_data *data;
+ int err = 0;
+ const char *name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_SMBUS_WORD_DATA))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access lm77_{read,write}_value. */
+ if (!(data = kmalloc(sizeof(struct lm77_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm77_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm77_driver;
+ new_client->flags = 0;
+
+ /* Here comes the remaining detection. Since the LM77 has no
+ register dedicated to identification, we have to rely on the
+ following tricks:
+
+ 1. the high 4 bits represent the sign and thus they should
+ always be the same
+ 2. the high 3 bits are unused in the configuration register
+ 3. addresses 0x06 and 0x07 return the last read value
+ 4. registers cycling over 8-address boundaries
+
+ Word-sized registers are high-byte first. */
+ if (kind < 0) {
+ int i, cur, conf, hyst, crit, min, max;
+
+ /* addresses cycling */
+ cur = i2c_smbus_read_word_data(new_client, 0);
+ conf = i2c_smbus_read_byte_data(new_client, 1);
+ hyst = i2c_smbus_read_word_data(new_client, 2);
+ crit = i2c_smbus_read_word_data(new_client, 3);
+ min = i2c_smbus_read_word_data(new_client, 4);
+ max = i2c_smbus_read_word_data(new_client, 5);
+ for (i = 8; i <= 0xff; i += 8)
+ if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
+ || i2c_smbus_read_word_data(new_client, i + 2) != hyst
+ || i2c_smbus_read_word_data(new_client, i + 3) != crit
+ || i2c_smbus_read_word_data(new_client, i + 4) != min
+ || i2c_smbus_read_word_data(new_client, i + 5) != max)
+ goto exit_free;
+
+ /* sign bits */
+ if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0)
+ || ((hyst & 0x00f0) != 0xf0 && (hyst & 0x00f0) != 0x0)
+ || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0)
+ || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0)
+ || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0))
+ goto exit_free;
+
+ /* unused bits */
+ if (conf & 0xe0)
+ goto exit_free;
+
+ /* 0x06 and 0x07 return the last read value */
+ cur = i2c_smbus_read_word_data(new_client, 0);
+ if (i2c_smbus_read_word_data(new_client, 6) != cur
+ || i2c_smbus_read_word_data(new_client, 7) != cur)
+ goto exit_free;
+ hyst = i2c_smbus_read_word_data(new_client, 2);
+ if (i2c_smbus_read_word_data(new_client, 6) != hyst
+ || i2c_smbus_read_word_data(new_client, 7) != hyst)
+ goto exit_free;
+ min = i2c_smbus_read_word_data(new_client, 4);
+ if (i2c_smbus_read_word_data(new_client, 6) != min
+ || i2c_smbus_read_word_data(new_client, 7) != min)
+ goto exit_free;
+
+ }
+
+ /* Determine the chip type - only one kind supported! */
+ if (kind <= 0)
+ kind = lm77;
+
+ if (kind == lm77) {
+ name = "lm77";
+ }
+
+ /* Fill in the remaining client fields and put it into the global list */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the LM77 chip */
+ lm77_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int lm77_detach_client(struct i2c_client *client)
+{
+ i2c_detach_client(client);
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+/* All registers are word-sized, except for the configuration register.
+ The LM77 uses the high-byte first convention. */
+static u16 lm77_read_value(struct i2c_client *client, u8 reg)
+{
+ if (reg == LM77_REG_CONF)
+ return i2c_smbus_read_byte_data(client, reg);
+ else
+ return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+ if (reg == LM77_REG_CONF)
+ return i2c_smbus_write_byte_data(client, reg, value);
+ else
+ return i2c_smbus_write_word_data(client, reg, swab16(value));
+}
+
+static void lm77_init_client(struct i2c_client *client)
+{
+ /* Initialize the LM77 chip - turn off shutdown mode */
+ int conf = lm77_read_value(client, LM77_REG_CONF);
+ if (conf & 1)
+ lm77_write_value(client, LM77_REG_CONF, conf & 0xfe);
+}
+
+static struct lm77_data *lm77_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm77_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ dev_dbg(&client->dev, "Starting lm77 update\n");
+ data->temp_input =
+ LM77_TEMP_FROM_REG(lm77_read_value(client,
+ LM77_REG_TEMP));
+ data->temp_hyst =
+ LM77_TEMP_FROM_REG(lm77_read_value(client,
+ LM77_REG_TEMP_HYST));
+ data->temp_crit =
+ LM77_TEMP_FROM_REG(lm77_read_value(client,
+ LM77_REG_TEMP_CRIT));
+ data->temp_min =
+ LM77_TEMP_FROM_REG(lm77_read_value(client,
+ LM77_REG_TEMP_MIN));
+ data->temp_max =
+ LM77_TEMP_FROM_REG(lm77_read_value(client,
+ LM77_REG_TEMP_MAX));
+ data->alarms =
+ lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_lm77_init(void)
+{
+ return i2c_add_driver(&lm77_driver);
+}
+
+static void __exit sensors_lm77_exit(void)
+{
+ i2c_del_driver(&lm77_driver);
+}
+
+MODULE_AUTHOR("Andras BALI <drewie@freemail.hu>");
+MODULE_DESCRIPTION("LM77 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm77_init);
+module_exit(sensors_lm77_exit);
diff --git a/drivers/i2c/chips/lm78.c b/drivers/i2c/chips/lm78.c
new file mode 100644
index 0000000..6d52d14
--- /dev/null
+++ b/drivers/i2c/chips/lm78.c
@@ -0,0 +1,796 @@
+/*
+ lm78.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <asm/io.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24,
+ 0x25, 0x26, 0x27, 0x28, 0x29,
+ 0x2a, 0x2b, 0x2c, 0x2d, 0x2e,
+ 0x2f, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { 0x0290, I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_3(lm78, lm78j, lm79);
+
+/* Many LM78 constants specified below */
+
+/* Length of ISA address segment */
+#define LM78_EXTENT 8
+
+/* Where are the ISA address/data registers relative to the base address */
+#define LM78_ADDR_REG_OFFSET 5
+#define LM78_DATA_REG_OFFSET 6
+
+/* The LM78 registers */
+#define LM78_REG_IN_MAX(nr) (0x2b + (nr) * 2)
+#define LM78_REG_IN_MIN(nr) (0x2c + (nr) * 2)
+#define LM78_REG_IN(nr) (0x20 + (nr))
+
+#define LM78_REG_FAN_MIN(nr) (0x3b + (nr))
+#define LM78_REG_FAN(nr) (0x28 + (nr))
+
+#define LM78_REG_TEMP 0x27
+#define LM78_REG_TEMP_OVER 0x39
+#define LM78_REG_TEMP_HYST 0x3a
+
+#define LM78_REG_ALARM1 0x41
+#define LM78_REG_ALARM2 0x42
+
+#define LM78_REG_VID_FANDIV 0x47
+
+#define LM78_REG_CONFIG 0x40
+#define LM78_REG_CHIPID 0x49
+#define LM78_REG_I2C_ADDR 0x48
+
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ variants. */
+
+/* IN: mV, (0V to 4.08V)
+ REG: 16mV/bit */
+static inline u8 IN_TO_REG(unsigned long val)
+{
+ unsigned long nval = SENSORS_LIMIT(val, 0, 4080);
+ return (nval + 8) / 16;
+}
+#define IN_FROM_REG(val) ((val) * 16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+ if (rpm <= 0)
+ return 255;
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+static inline int FAN_FROM_REG(u8 val, int div)
+{
+ return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+}
+
+/* TEMP: mC (-128C to +127C)
+ REG: 1C/bit, two's complement */
+static inline s8 TEMP_TO_REG(int val)
+{
+ int nval = SENSORS_LIMIT(val, -128000, 127000) ;
+ return nval<0 ? (nval-500)/1000 : (nval+500)/1000;
+}
+
+static inline int TEMP_FROM_REG(s8 val)
+{
+ return val * 1000;
+}
+
+/* VID: mV
+ REG: (see doc/vid) */
+static inline int VID_FROM_REG(u8 val)
+{
+ return val==0x1f ? 0 : val>=0x10 ? 5100-val*100 : 2050-val*50;
+}
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+/* There are some complications in a module like this. First off, LM78 chips
+ may be both present on the SMBus and the ISA bus, and we have to handle
+ those cases separately at some places. Second, there might be several
+ LM78 chips available (well, actually, that is probably never done; but
+ it is a clean illustration of how to handle a case like that). Finally,
+ a specific chip may be attached to *both* ISA and SMBus, and we would
+ not like to detect it double. Fortunately, in the case of the LM78 at
+ least, a register tells us what SMBus address we are on, so that helps
+ a bit - except if there could be more than one SMBus. Groan. No solution
+ for this yet. */
+
+/* This module may seem overly long and complicated. In fact, it is not so
+ bad. Quite a lot of bookkeeping is done. A real driver can often cut
+ some corners. */
+
+/* For each registered LM78, we need to keep some data in memory. That
+ data is pointed to by lm78_list[NR]->data. The structure itself is
+ dynamically allocated, at the same time when a new lm78 client is
+ allocated. */
+struct lm78_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ enum chips type;
+
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u8 in[7]; /* Register value */
+ u8 in_max[7]; /* Register value */
+ u8 in_min[7]; /* Register value */
+ u8 fan[3]; /* Register value */
+ u8 fan_min[3]; /* Register value */
+ s8 temp; /* Register value */
+ s8 temp_over; /* Register value */
+ s8 temp_hyst; /* Register value */
+ u8 fan_div[3]; /* Register encoding, shifted right */
+ u8 vid; /* Register encoding, combined */
+ u16 alarms; /* Register encoding, combined */
+};
+
+
+static int lm78_attach_adapter(struct i2c_adapter *adapter);
+static int lm78_detect(struct i2c_adapter *adapter, int address, int kind);
+static int lm78_detach_client(struct i2c_client *client);
+
+static int lm78_read_value(struct i2c_client *client, u8 register);
+static int lm78_write_value(struct i2c_client *client, u8 register, u8 value);
+static struct lm78_data *lm78_update_device(struct device *dev);
+static void lm78_init_client(struct i2c_client *client);
+
+
+static struct i2c_driver lm78_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm78",
+ .id = I2C_DRIVERID_LM78,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm78_attach_adapter,
+ .detach_client = lm78_detach_client,
+};
+
+/* 7 Voltages */
+static ssize_t show_in(struct device *dev, char *buf, int nr)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
+}
+
+static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
+}
+
+static ssize_t set_in_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm78_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[nr] = IN_TO_REG(val);
+ lm78_write_value(client, LM78_REG_IN_MIN(nr), data->in_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_in_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm78_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[nr] = IN_TO_REG(val);
+ lm78_write_value(client, LM78_REG_IN_MAX(nr), data->in_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define show_in_offset(offset) \
+static ssize_t \
+ show_in##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+ show_in##offset, NULL); \
+static ssize_t \
+ show_in##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_in_min(dev, buf, offset); \
+} \
+static ssize_t \
+ show_in##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_in_max(dev, buf, offset); \
+} \
+static ssize_t set_in##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_min(dev, buf, count, offset); \
+} \
+static ssize_t set_in##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_max(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in##offset##_max, set_in##offset##_max);
+
+show_in_offset(0);
+show_in_offset(1);
+show_in_offset(2);
+show_in_offset(3);
+show_in_offset(4);
+show_in_offset(5);
+show_in_offset(6);
+
+/* Temperature */
+static ssize_t show_temp(struct device *dev, char *buf)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));
+}
+
+static ssize_t show_temp_over(struct device *dev, char *buf)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
+}
+
+static ssize_t set_temp_over(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm78_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_over = TEMP_TO_REG(val);
+ lm78_write_value(client, LM78_REG_TEMP_OVER, data->temp_over);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_temp_hyst(struct device *dev, char *buf)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));
+}
+
+static ssize_t set_temp_hyst(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm78_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_hyst = TEMP_TO_REG(val);
+ lm78_write_value(client, LM78_REG_TEMP_HYST, data->temp_hyst);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+ show_temp_over, set_temp_over);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp_hyst, set_temp_hyst);
+
+/* 3 Fans */
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+ DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm78_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+ lm78_write_value(client, LM78_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan divisor. This follows the principle of
+ least suprise; the user doesn't expect the fan minimum to change just
+ because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm78_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long min;
+ u8 reg;
+
+ down(&data->update_lock);
+ min = FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+
+ switch (val) {
+ case 1: data->fan_div[nr] = 0; break;
+ case 2: data->fan_div[nr] = 1; break;
+ case 4: data->fan_div[nr] = 2; break;
+ case 8: data->fan_div[nr] = 3; break;
+ default:
+ dev_err(&client->dev, "fan_div value %ld not "
+ "supported. Choose one of 1, 2, 4 or 8!\n", val);
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ reg = lm78_read_value(client, LM78_REG_VID_FANDIV);
+ switch (nr) {
+ case 0:
+ reg = (reg & 0xcf) | (data->fan_div[nr] << 4);
+ break;
+ case 1:
+ reg = (reg & 0x3f) | (data->fan_div[nr] << 6);
+ break;
+ }
+ lm78_write_value(client, LM78_REG_VID_FANDIV, reg);
+
+ data->fan_min[nr] =
+ FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+ lm78_write_value(client, LM78_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+
+ return count;
+}
+
+#define show_fan_offset(offset) \
+static ssize_t show_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
+{ \
+ return show_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);\
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_min, set_fan_##offset##_min);
+
+static ssize_t set_fan_1_div(struct device *dev, const char *buf,
+ size_t count)
+{
+ return set_fan_div(dev, buf, count, 0) ;
+}
+
+static ssize_t set_fan_2_div(struct device *dev, const char *buf,
+ size_t count)
+{
+ return set_fan_div(dev, buf, count, 1) ;
+}
+
+show_fan_offset(1);
+show_fan_offset(2);
+show_fan_offset(3);
+
+/* Fan 3 divisor is locked in H/W */
+static DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
+ show_fan_1_div, set_fan_1_div);
+static DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
+ show_fan_2_div, set_fan_2_div);
+static DEVICE_ATTR(fan3_div, S_IRUGO, show_fan_3_div, NULL);
+
+/* VID */
+static ssize_t show_vid(struct device *dev, char *buf)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%d\n", VID_FROM_REG(data->vid));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct lm78_data *data = lm78_update_device(dev);
+ return sprintf(buf, "%u\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+/* This function is called when:
+ * lm78_driver is inserted (when this module is loaded), for each
+ available adapter
+ * when a new adapter is inserted (and lm78_driver is still present) */
+static int lm78_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm78_detect);
+}
+
+/* This function is called by i2c_detect */
+int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i, err;
+ struct i2c_client *new_client;
+ struct lm78_data *data;
+ const char *client_name = "";
+ int is_isa = i2c_is_isa_adapter(adapter);
+
+ if (!is_isa &&
+ !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+ err = -ENODEV;
+ goto ERROR0;
+ }
+
+ /* Reserve the ISA region */
+ if (is_isa)
+ if (!request_region(address, LM78_EXTENT, lm78_driver.name)) {
+ err = -EBUSY;
+ goto ERROR0;
+ }
+
+ /* Probe whether there is anything available on this address. Already
+ done for SMBus clients */
+ if (kind < 0) {
+ if (is_isa) {
+
+#define REALLY_SLOW_IO
+ /* We need the timeouts for at least some LM78-like
+ chips. But only if we read 'undefined' registers. */
+ i = inb_p(address + 1);
+ if (inb_p(address + 2) != i) {
+ err = -ENODEV;
+ goto ERROR1;
+ }
+ if (inb_p(address + 3) != i) {
+ err = -ENODEV;
+ goto ERROR1;
+ }
+ if (inb_p(address + 7) != i) {
+ err = -ENODEV;
+ goto ERROR1;
+ }
+#undef REALLY_SLOW_IO
+
+ /* Let's just hope nothing breaks here */
+ i = inb_p(address + 5) & 0x7f;
+ outb_p(~i & 0x7f, address + 5);
+ if ((inb_p(address + 5) & 0x7f) != (~i & 0x7f)) {
+ outb_p(i, address + 5);
+ err = -ENODEV;
+ goto ERROR1;
+ }
+ }
+ }
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access lm78_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct lm78_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto ERROR1;
+ }
+ memset(data, 0, sizeof(struct lm78_data));
+
+ new_client = &data->client;
+ if (is_isa)
+ init_MUTEX(&data->lock);
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm78_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+ if (kind < 0) {
+ if (lm78_read_value(new_client, LM78_REG_CONFIG) & 0x80) {
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ if (!is_isa && (lm78_read_value(
+ new_client, LM78_REG_I2C_ADDR) != address)) {
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ }
+
+ /* Determine the chip type. */
+ if (kind <= 0) {
+ i = lm78_read_value(new_client, LM78_REG_CHIPID);
+ if (i == 0x00 || i == 0x20)
+ kind = lm78;
+ else if (i == 0x40)
+ kind = lm78j;
+ else if ((i & 0xfe) == 0xc0)
+ kind = lm79;
+ else {
+ if (kind == 0)
+ dev_warn(&adapter->dev, "Ignoring 'force' "
+ "parameter for unknown chip at "
+ "adapter %d, address 0x%02x\n",
+ i2c_adapter_id(adapter), address);
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ }
+
+ if (kind == lm78) {
+ client_name = "lm78";
+ } else if (kind == lm78j) {
+ client_name = "lm78-j";
+ } else if (kind == lm79) {
+ client_name = "lm79";
+ }
+
+ /* Fill in the remaining client fields and put into the global list */
+ strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
+ data->type = kind;
+
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR2;
+
+ /* Initialize the LM78 chip */
+ lm78_init_client(new_client);
+
+ /* A few vars need to be filled upon startup */
+ for (i = 0; i < 3; i++) {
+ data->fan_min[i] = lm78_read_value(new_client,
+ LM78_REG_FAN_MIN(i));
+ }
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ device_create_file(&new_client->dev, &dev_attr_in5_input);
+ device_create_file(&new_client->dev, &dev_attr_in5_min);
+ device_create_file(&new_client->dev, &dev_attr_in5_max);
+ device_create_file(&new_client->dev, &dev_attr_in6_input);
+ device_create_file(&new_client->dev, &dev_attr_in6_min);
+ device_create_file(&new_client->dev, &dev_attr_in6_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_fan3_input);
+ device_create_file(&new_client->dev, &dev_attr_fan3_min);
+ device_create_file(&new_client->dev, &dev_attr_fan3_div);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
+
+ return 0;
+
+ERROR2:
+ kfree(data);
+ERROR1:
+ if (is_isa)
+ release_region(address, LM78_EXTENT);
+ERROR0:
+ return err;
+}
+
+static int lm78_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ if(i2c_is_isa_client(client))
+ release_region(client->addr, LM78_EXTENT);
+
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+/* The SMBus locks itself, but ISA access must be locked explicitely!
+ We don't want to lock the whole ISA bus, so we lock each client
+ separately.
+ We ignore the LM78 BUSY flag at this moment - it could lead to deadlocks,
+ would slow down the LM78 access and should not be necessary. */
+static int lm78_read_value(struct i2c_client *client, u8 reg)
+{
+ int res;
+ if (i2c_is_isa_client(client)) {
+ struct lm78_data *data = i2c_get_clientdata(client);
+ down(&data->lock);
+ outb_p(reg, client->addr + LM78_ADDR_REG_OFFSET);
+ res = inb_p(client->addr + LM78_DATA_REG_OFFSET);
+ up(&data->lock);
+ return res;
+ } else
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* The SMBus locks itself, but ISA access muse be locked explicitely!
+ We don't want to lock the whole ISA bus, so we lock each client
+ separately.
+ We ignore the LM78 BUSY flag at this moment - it could lead to deadlocks,
+ would slow down the LM78 access and should not be necessary.
+ There are some ugly typecasts here, but the good new is - they should
+ nowhere else be necessary! */
+static int lm78_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ if (i2c_is_isa_client(client)) {
+ struct lm78_data *data = i2c_get_clientdata(client);
+ down(&data->lock);
+ outb_p(reg, client->addr + LM78_ADDR_REG_OFFSET);
+ outb_p(value, client->addr + LM78_DATA_REG_OFFSET);
+ up(&data->lock);
+ return 0;
+ } else
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new LM78. It should set limits, etc. */
+static void lm78_init_client(struct i2c_client *client)
+{
+ u8 config = lm78_read_value(client, LM78_REG_CONFIG);
+
+ /* Start monitoring */
+ if (!(config & 0x01))
+ lm78_write_value(client, LM78_REG_CONFIG,
+ (config & 0xf7) | 0x01);
+}
+
+static struct lm78_data *lm78_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm78_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+
+ dev_dbg(&client->dev, "Starting lm78 update\n");
+
+ for (i = 0; i <= 6; i++) {
+ data->in[i] =
+ lm78_read_value(client, LM78_REG_IN(i));
+ data->in_min[i] =
+ lm78_read_value(client, LM78_REG_IN_MIN(i));
+ data->in_max[i] =
+ lm78_read_value(client, LM78_REG_IN_MAX(i));
+ }
+ for (i = 0; i < 3; i++) {
+ data->fan[i] =
+ lm78_read_value(client, LM78_REG_FAN(i));
+ data->fan_min[i] =
+ lm78_read_value(client, LM78_REG_FAN_MIN(i));
+ }
+ data->temp = lm78_read_value(client, LM78_REG_TEMP);
+ data->temp_over =
+ lm78_read_value(client, LM78_REG_TEMP_OVER);
+ data->temp_hyst =
+ lm78_read_value(client, LM78_REG_TEMP_HYST);
+ i = lm78_read_value(client, LM78_REG_VID_FANDIV);
+ data->vid = i & 0x0f;
+ if (data->type == lm79)
+ data->vid |=
+ (lm78_read_value(client, LM78_REG_CHIPID) &
+ 0x01) << 4;
+ else
+ data->vid |= 0x10;
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = i >> 6;
+ data->alarms = lm78_read_value(client, LM78_REG_ALARM1) +
+ (lm78_read_value(client, LM78_REG_ALARM2) << 8);
+ data->last_updated = jiffies;
+ data->valid = 1;
+
+ data->fan_div[2] = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sm_lm78_init(void)
+{
+ return i2c_add_driver(&lm78_driver);
+}
+
+static void __exit sm_lm78_exit(void)
+{
+ i2c_del_driver(&lm78_driver);
+}
+
+
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>");
+MODULE_DESCRIPTION("LM78, LM78-J and LM79 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sm_lm78_init);
+module_exit(sm_lm78_exit);
diff --git a/drivers/i2c/chips/lm80.c b/drivers/i2c/chips/lm80.c
new file mode 100644
index 0000000..a72f431
--- /dev/null
+++ b/drivers/i2c/chips/lm80.c
@@ -0,0 +1,602 @@
+/*
+ * lm80.c - From lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ * and Philip Edelbrock <phil@netroedge.com>
+ *
+ * Ported to Linux 2.6 by Tiago Sousa <mirage@kaotik.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c,
+ 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(lm80);
+
+/* Many LM80 constants specified below */
+
+/* The LM80 registers */
+#define LM80_REG_IN_MAX(nr) (0x2a + (nr) * 2)
+#define LM80_REG_IN_MIN(nr) (0x2b + (nr) * 2)
+#define LM80_REG_IN(nr) (0x20 + (nr))
+
+#define LM80_REG_FAN1 0x28
+#define LM80_REG_FAN2 0x29
+#define LM80_REG_FAN_MIN(nr) (0x3b + (nr))
+
+#define LM80_REG_TEMP 0x27
+#define LM80_REG_TEMP_HOT_MAX 0x38
+#define LM80_REG_TEMP_HOT_HYST 0x39
+#define LM80_REG_TEMP_OS_MAX 0x3a
+#define LM80_REG_TEMP_OS_HYST 0x3b
+
+#define LM80_REG_CONFIG 0x00
+#define LM80_REG_ALARM1 0x01
+#define LM80_REG_ALARM2 0x02
+#define LM80_REG_MASK1 0x03
+#define LM80_REG_MASK2 0x04
+#define LM80_REG_FANDIV 0x05
+#define LM80_REG_RES 0x06
+
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ variants. Note that you should be a bit careful with which arguments
+ these macros are called: arguments may be evaluated more than once.
+ Fixing this is just not worth it. */
+
+#define IN_TO_REG(val) (SENSORS_LIMIT(((val)+5)/10,0,255))
+#define IN_FROM_REG(val) ((val)*10)
+
+static inline unsigned char FAN_TO_REG(unsigned rpm, unsigned div)
+{
+ if (rpm == 0)
+ return 255;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((1350000 + rpm*div / 2) / (rpm*div), 1, 254);
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?-1:\
+ (val)==255?0:1350000/((div)*(val)))
+
+static inline long TEMP_FROM_REG(u16 temp)
+{
+ long res;
+
+ temp >>= 4;
+ if (temp < 0x0800)
+ res = 625 * (long) temp;
+ else
+ res = ((long) temp - 0x01000) * 625;
+
+ return res / 10;
+}
+
+#define TEMP_LIMIT_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*1000)
+
+#define TEMP_LIMIT_TO_REG(val) SENSORS_LIMIT((val)<0?\
+ ((val)-500)/1000:((val)+500)/1000,0,255)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm80_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u8 in[7]; /* Register value */
+ u8 in_max[7]; /* Register value */
+ u8 in_min[7]; /* Register value */
+ u8 fan[2]; /* Register value */
+ u8 fan_min[2]; /* Register value */
+ u8 fan_div[2]; /* Register encoding, shifted right */
+ u16 temp; /* Register values, shifted right */
+ u8 temp_hot_max; /* Register value */
+ u8 temp_hot_hyst; /* Register value */
+ u8 temp_os_max; /* Register value */
+ u8 temp_os_hyst; /* Register value */
+ u16 alarms; /* Register encoding, combined */
+};
+
+/*
+ * Functions declaration
+ */
+
+static int lm80_attach_adapter(struct i2c_adapter *adapter);
+static int lm80_detect(struct i2c_adapter *adapter, int address, int kind);
+static void lm80_init_client(struct i2c_client *client);
+static int lm80_detach_client(struct i2c_client *client);
+static struct lm80_data *lm80_update_device(struct device *dev);
+static int lm80_read_value(struct i2c_client *client, u8 reg);
+static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver lm80_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm80",
+ .id = I2C_DRIVERID_LM80,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm80_attach_adapter,
+ .detach_client = lm80_detach_client,
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show_in(suffix, value) \
+static ssize_t show_in_##suffix(struct device *dev, char *buf) \
+{ \
+ struct lm80_data *data = lm80_update_device(dev); \
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->value)); \
+}
+show_in(min0, in_min[0]);
+show_in(min1, in_min[1]);
+show_in(min2, in_min[2]);
+show_in(min3, in_min[3]);
+show_in(min4, in_min[4]);
+show_in(min5, in_min[5]);
+show_in(min6, in_min[6]);
+show_in(max0, in_max[0]);
+show_in(max1, in_max[1]);
+show_in(max2, in_max[2]);
+show_in(max3, in_max[3]);
+show_in(max4, in_max[4]);
+show_in(max5, in_max[5]);
+show_in(max6, in_max[6]);
+show_in(input0, in[0]);
+show_in(input1, in[1]);
+show_in(input2, in[2]);
+show_in(input3, in[3]);
+show_in(input4, in[4]);
+show_in(input5, in[5]);
+show_in(input6, in[6]);
+
+#define set_in(suffix, value, reg) \
+static ssize_t set_in_##suffix(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm80_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock);\
+ data->value = IN_TO_REG(val); \
+ lm80_write_value(client, reg, data->value); \
+ up(&data->update_lock);\
+ return count; \
+}
+set_in(min0, in_min[0], LM80_REG_IN_MIN(0));
+set_in(min1, in_min[1], LM80_REG_IN_MIN(1));
+set_in(min2, in_min[2], LM80_REG_IN_MIN(2));
+set_in(min3, in_min[3], LM80_REG_IN_MIN(3));
+set_in(min4, in_min[4], LM80_REG_IN_MIN(4));
+set_in(min5, in_min[5], LM80_REG_IN_MIN(5));
+set_in(min6, in_min[6], LM80_REG_IN_MIN(6));
+set_in(max0, in_max[0], LM80_REG_IN_MAX(0));
+set_in(max1, in_max[1], LM80_REG_IN_MAX(1));
+set_in(max2, in_max[2], LM80_REG_IN_MAX(2));
+set_in(max3, in_max[3], LM80_REG_IN_MAX(3));
+set_in(max4, in_max[4], LM80_REG_IN_MAX(4));
+set_in(max5, in_max[5], LM80_REG_IN_MAX(5));
+set_in(max6, in_max[6], LM80_REG_IN_MAX(6));
+
+#define show_fan(suffix, value, div) \
+static ssize_t show_fan_##suffix(struct device *dev, char *buf) \
+{ \
+ struct lm80_data *data = lm80_update_device(dev); \
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->value, \
+ DIV_FROM_REG(data->div))); \
+}
+show_fan(min1, fan_min[0], fan_div[0]);
+show_fan(min2, fan_min[1], fan_div[1]);
+show_fan(input1, fan[0], fan_div[0]);
+show_fan(input2, fan[1], fan_div[1]);
+
+#define show_fan_div(suffix, value) \
+static ssize_t show_fan_div##suffix(struct device *dev, char *buf) \
+{ \
+ struct lm80_data *data = lm80_update_device(dev); \
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->value)); \
+}
+show_fan_div(1, fan_div[0]);
+show_fan_div(2, fan_div[1]);
+
+#define set_fan(suffix, value, reg, div) \
+static ssize_t set_fan_##suffix(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm80_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock);\
+ data->value = FAN_TO_REG(val, DIV_FROM_REG(data->div)); \
+ lm80_write_value(client, reg, data->value); \
+ up(&data->update_lock);\
+ return count; \
+}
+set_fan(min1, fan_min[0], LM80_REG_FAN_MIN(1), fan_div[0]);
+set_fan(min2, fan_min[1], LM80_REG_FAN_MIN(2), fan_div[1]);
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan divisor. This follows the principle of
+ least suprise; the user doesn't expect the fan minimum to change just
+ because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm80_data *data = i2c_get_clientdata(client);
+ unsigned long min, val = simple_strtoul(buf, NULL, 10);
+ u8 reg;
+
+ /* Save fan_min */
+ down(&data->update_lock);
+ min = FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+
+ switch (val) {
+ case 1: data->fan_div[nr] = 0; break;
+ case 2: data->fan_div[nr] = 1; break;
+ case 4: data->fan_div[nr] = 2; break;
+ case 8: data->fan_div[nr] = 3; break;
+ default:
+ dev_err(&client->dev, "fan_div value %ld not "
+ "supported. Choose one of 1, 2, 4 or 8!\n", val);
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ reg = (lm80_read_value(client, LM80_REG_FANDIV) & ~(3 << (2 * (nr + 1))))
+ | (data->fan_div[nr] << (2 * (nr + 1)));
+ lm80_write_value(client, LM80_REG_FANDIV, reg);
+
+ /* Restore fan_min */
+ data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+ lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
+ up(&data->update_lock);
+
+ return count;
+}
+
+#define set_fan_div(number) \
+static ssize_t set_fan_div##number(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, number - 1); \
+}
+set_fan_div(1);
+set_fan_div(2);
+
+static ssize_t show_temp_input1(struct device *dev, char *buf)
+{
+ struct lm80_data *data = lm80_update_device(dev);
+ return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp));
+}
+
+#define show_temp(suffix, value) \
+static ssize_t show_temp_##suffix(struct device *dev, char *buf) \
+{ \
+ struct lm80_data *data = lm80_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_LIMIT_FROM_REG(data->value)); \
+}
+show_temp(hot_max, temp_hot_max);
+show_temp(hot_hyst, temp_hot_hyst);
+show_temp(os_max, temp_os_max);
+show_temp(os_hyst, temp_os_hyst);
+
+#define set_temp(suffix, value, reg) \
+static ssize_t set_temp_##suffix(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm80_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = TEMP_LIMIT_TO_REG(val); \
+ lm80_write_value(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+set_temp(hot_max, temp_hot_max, LM80_REG_TEMP_HOT_MAX);
+set_temp(hot_hyst, temp_hot_hyst, LM80_REG_TEMP_HOT_HYST);
+set_temp(os_max, temp_os_max, LM80_REG_TEMP_OS_MAX);
+set_temp(os_hyst, temp_os_hyst, LM80_REG_TEMP_OS_HYST);
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct lm80_data *data = lm80_update_device(dev);
+ return sprintf(buf, "%u\n", data->alarms);
+}
+
+static DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min0, set_in_min0);
+static DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min1, set_in_min1);
+static DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min2, set_in_min2);
+static DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min3, set_in_min3);
+static DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min4, set_in_min4);
+static DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min5, set_in_min5);
+static DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min6, set_in_min6);
+static DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max0, set_in_max0);
+static DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max1, set_in_max1);
+static DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max2, set_in_max2);
+static DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max3, set_in_max3);
+static DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max4, set_in_max4);
+static DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max5, set_in_max5);
+static DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max6, set_in_max6);
+static DEVICE_ATTR(in0_input, S_IRUGO, show_in_input0, NULL);
+static DEVICE_ATTR(in1_input, S_IRUGO, show_in_input1, NULL);
+static DEVICE_ATTR(in2_input, S_IRUGO, show_in_input2, NULL);
+static DEVICE_ATTR(in3_input, S_IRUGO, show_in_input3, NULL);
+static DEVICE_ATTR(in4_input, S_IRUGO, show_in_input4, NULL);
+static DEVICE_ATTR(in5_input, S_IRUGO, show_in_input5, NULL);
+static DEVICE_ATTR(in6_input, S_IRUGO, show_in_input6, NULL);
+static DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min1,
+ set_fan_min1);
+static DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min2,
+ set_fan_min2);
+static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input1, NULL);
+static DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input2, NULL);
+static DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, show_fan_div1, set_fan_div1);
+static DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, show_fan_div2, set_fan_div2);
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_hot_max,
+ set_temp_hot_max);
+static DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp_hot_hyst,
+ set_temp_hot_hyst);
+static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_os_max,
+ set_temp_os_max);
+static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_os_hyst,
+ set_temp_os_hyst);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+/*
+ * Real code
+ */
+
+static int lm80_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm80_detect);
+}
+
+int lm80_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i, cur;
+ struct i2c_client *new_client;
+ struct lm80_data *data;
+ int err = 0;
+ const char *name;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access lm80_{read,write}_value. */
+ if (!(data = kmalloc(sizeof(struct lm80_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm80_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm80_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. It is lousy. */
+ if (lm80_read_value(new_client, LM80_REG_ALARM2) & 0xc0)
+ goto error_free;
+ for (i = 0x2a; i <= 0x3d; i++) {
+ cur = i2c_smbus_read_byte_data(new_client, i);
+ if ((i2c_smbus_read_byte_data(new_client, i + 0x40) != cur)
+ || (i2c_smbus_read_byte_data(new_client, i + 0x80) != cur)
+ || (i2c_smbus_read_byte_data(new_client, i + 0xc0) != cur))
+ goto error_free;
+ }
+
+ /* Determine the chip type - only one kind supported! */
+ kind = lm80;
+ name = "lm80";
+
+ /* Fill in the remaining client fields and put it into the global list */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto error_free;
+
+ /* Initialize the LM80 chip */
+ lm80_init_client(new_client);
+
+ /* A few vars need to be filled upon startup */
+ data->fan_min[0] = lm80_read_value(new_client, LM80_REG_FAN_MIN(1));
+ data->fan_min[1] = lm80_read_value(new_client, LM80_REG_FAN_MIN(2));
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in5_min);
+ device_create_file(&new_client->dev, &dev_attr_in6_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ device_create_file(&new_client->dev, &dev_attr_in5_max);
+ device_create_file(&new_client->dev, &dev_attr_in6_max);
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in5_input);
+ device_create_file(&new_client->dev, &dev_attr_in6_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit_hyst);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+error_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int lm80_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static int lm80_read_value(struct i2c_client *client, u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new LM80. */
+static void lm80_init_client(struct i2c_client *client)
+{
+ /* Reset all except Watchdog values and last conversion values
+ This sets fan-divs to 2, among others. This makes most other
+ initializations unnecessary */
+ lm80_write_value(client, LM80_REG_CONFIG, 0x80);
+ /* Set 11-bit temperature resolution */
+ lm80_write_value(client, LM80_REG_RES, 0x08);
+
+ /* Start monitoring */
+ lm80_write_value(client, LM80_REG_CONFIG, 0x01);
+}
+
+static struct lm80_data *lm80_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm80_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+ dev_dbg(&client->dev, "Starting lm80 update\n");
+ for (i = 0; i <= 6; i++) {
+ data->in[i] =
+ lm80_read_value(client, LM80_REG_IN(i));
+ data->in_min[i] =
+ lm80_read_value(client, LM80_REG_IN_MIN(i));
+ data->in_max[i] =
+ lm80_read_value(client, LM80_REG_IN_MAX(i));
+ }
+ data->fan[0] = lm80_read_value(client, LM80_REG_FAN1);
+ data->fan_min[0] =
+ lm80_read_value(client, LM80_REG_FAN_MIN(1));
+ data->fan[1] = lm80_read_value(client, LM80_REG_FAN2);
+ data->fan_min[1] =
+ lm80_read_value(client, LM80_REG_FAN_MIN(2));
+
+ data->temp =
+ (lm80_read_value(client, LM80_REG_TEMP) << 8) |
+ (lm80_read_value(client, LM80_REG_RES) & 0xf0);
+ data->temp_os_max =
+ lm80_read_value(client, LM80_REG_TEMP_OS_MAX);
+ data->temp_os_hyst =
+ lm80_read_value(client, LM80_REG_TEMP_OS_HYST);
+ data->temp_hot_max =
+ lm80_read_value(client, LM80_REG_TEMP_HOT_MAX);
+ data->temp_hot_hyst =
+ lm80_read_value(client, LM80_REG_TEMP_HOT_HYST);
+
+ i = lm80_read_value(client, LM80_REG_FANDIV);
+ data->fan_div[0] = (i >> 2) & 0x03;
+ data->fan_div[1] = (i >> 4) & 0x03;
+ data->alarms = lm80_read_value(client, LM80_REG_ALARM1) +
+ (lm80_read_value(client, LM80_REG_ALARM2) << 8);
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_lm80_init(void)
+{
+ return i2c_add_driver(&lm80_driver);
+}
+
+static void __exit sensors_lm80_exit(void)
+{
+ i2c_del_driver(&lm80_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and "
+ "Philip Edelbrock <phil@netroedge.com>");
+MODULE_DESCRIPTION("LM80 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm80_init);
+module_exit(sensors_lm80_exit);
diff --git a/drivers/i2c/chips/lm83.c b/drivers/i2c/chips/lm83.c
new file mode 100644
index 0000000..3dafe60
--- /dev/null
+++ b/drivers/i2c/chips/lm83.c
@@ -0,0 +1,412 @@
+/*
+ * lm83.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2003 Jean Delvare <khali@linux-fr.org>
+ *
+ * Heavily inspired from the lm78, lm75 and adm1021 drivers. The LM83 is
+ * a sensor chip made by National Semiconductor. It reports up to four
+ * temperatures (its own plus up to three external ones) with a 1 deg
+ * resolution and a 3-4 deg accuracy. Complete datasheet can be obtained
+ * from National's website at:
+ * http://www.national.com/pf/LM/LM83.html
+ * Since the datasheet omits to give the chip stepping code, I give it
+ * here: 0x03 (at register 0xff).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/*
+ * Addresses to scan
+ * Address is selected using 2 three-level pins, resulting in 9 possible
+ * addresses.
+ */
+
+static unsigned short normal_i2c[] = { 0x18, 0x19, 0x1a,
+ 0x29, 0x2a, 0x2b,
+ 0x4c, 0x4d, 0x4e,
+ I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_1(lm83);
+
+/*
+ * The LM83 registers
+ * Manufacturer ID is 0x01 for National Semiconductor.
+ */
+
+#define LM83_REG_R_MAN_ID 0xFE
+#define LM83_REG_R_CHIP_ID 0xFF
+#define LM83_REG_R_CONFIG 0x03
+#define LM83_REG_W_CONFIG 0x09
+#define LM83_REG_R_STATUS1 0x02
+#define LM83_REG_R_STATUS2 0x35
+#define LM83_REG_R_LOCAL_TEMP 0x00
+#define LM83_REG_R_LOCAL_HIGH 0x05
+#define LM83_REG_W_LOCAL_HIGH 0x0B
+#define LM83_REG_R_REMOTE1_TEMP 0x30
+#define LM83_REG_R_REMOTE1_HIGH 0x38
+#define LM83_REG_W_REMOTE1_HIGH 0x50
+#define LM83_REG_R_REMOTE2_TEMP 0x01
+#define LM83_REG_R_REMOTE2_HIGH 0x07
+#define LM83_REG_W_REMOTE2_HIGH 0x0D
+#define LM83_REG_R_REMOTE3_TEMP 0x31
+#define LM83_REG_R_REMOTE3_HIGH 0x3A
+#define LM83_REG_W_REMOTE3_HIGH 0x52
+#define LM83_REG_R_TCRIT 0x42
+#define LM83_REG_W_TCRIT 0x5A
+
+/*
+ * Conversions and various macros
+ * The LM83 uses signed 8-bit values with LSB = 1 degree Celcius.
+ */
+
+#define TEMP_FROM_REG(val) ((val) * 1000)
+#define TEMP_TO_REG(val) ((val) <= -128000 ? -128 : \
+ (val) >= 127000 ? 127 : \
+ (val) < 0 ? ((val) - 500) / 1000 : \
+ ((val) + 500) / 1000)
+
+static const u8 LM83_REG_R_TEMP[] = {
+ LM83_REG_R_LOCAL_TEMP,
+ LM83_REG_R_REMOTE1_TEMP,
+ LM83_REG_R_REMOTE2_TEMP,
+ LM83_REG_R_REMOTE3_TEMP
+};
+
+static const u8 LM83_REG_R_HIGH[] = {
+ LM83_REG_R_LOCAL_HIGH,
+ LM83_REG_R_REMOTE1_HIGH,
+ LM83_REG_R_REMOTE2_HIGH,
+ LM83_REG_R_REMOTE3_HIGH
+};
+
+static const u8 LM83_REG_W_HIGH[] = {
+ LM83_REG_W_LOCAL_HIGH,
+ LM83_REG_W_REMOTE1_HIGH,
+ LM83_REG_W_REMOTE2_HIGH,
+ LM83_REG_W_REMOTE3_HIGH
+};
+
+/*
+ * Functions declaration
+ */
+
+static int lm83_attach_adapter(struct i2c_adapter *adapter);
+static int lm83_detect(struct i2c_adapter *adapter, int address, int kind);
+static int lm83_detach_client(struct i2c_client *client);
+static struct lm83_data *lm83_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver lm83_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm83",
+ .id = I2C_DRIVERID_LM83,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm83_attach_adapter,
+ .detach_client = lm83_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm83_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* registers values */
+ s8 temp_input[4];
+ s8 temp_high[4];
+ s8 temp_crit;
+ u16 alarms; /* bitvector, combined */
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show_temp(suffix, value) \
+static ssize_t show_temp_##suffix(struct device *dev, char *buf) \
+{ \
+ struct lm83_data *data = lm83_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \
+}
+show_temp(input1, temp_input[0]);
+show_temp(input2, temp_input[1]);
+show_temp(input3, temp_input[2]);
+show_temp(input4, temp_input[3]);
+show_temp(high1, temp_high[0]);
+show_temp(high2, temp_high[1]);
+show_temp(high3, temp_high[2]);
+show_temp(high4, temp_high[3]);
+show_temp(crit, temp_crit);
+
+#define set_temp(suffix, value, reg) \
+static ssize_t set_temp_##suffix(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm83_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = TEMP_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+set_temp(high1, temp_high[0], LM83_REG_W_LOCAL_HIGH);
+set_temp(high2, temp_high[1], LM83_REG_W_REMOTE1_HIGH);
+set_temp(high3, temp_high[2], LM83_REG_W_REMOTE2_HIGH);
+set_temp(high4, temp_high[3], LM83_REG_W_REMOTE3_HIGH);
+set_temp(crit, temp_crit, LM83_REG_W_TCRIT);
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct lm83_data *data = lm83_update_device(dev);
+ return sprintf(buf, "%d\n", data->alarms);
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL);
+static DEVICE_ATTR(temp3_input, S_IRUGO, show_temp_input3, NULL);
+static DEVICE_ATTR(temp4_input, S_IRUGO, show_temp_input4, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_high1,
+ set_temp_high1);
+static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2,
+ set_temp_high2);
+static DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_high3,
+ set_temp_high3);
+static DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_high4,
+ set_temp_high4);
+static DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL);
+static DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit, NULL);
+static DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_temp_crit,
+ set_temp_crit);
+static DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp_crit, NULL);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+/*
+ * Real code
+ */
+
+static int lm83_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm83_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct lm83_data *data;
+ int err = 0;
+ const char *name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct lm83_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm83_data));
+
+ /* The common I2C client data is placed right after the
+ * LM83-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm83_driver;
+ new_client->flags = 0;
+
+ /* Now we do the detection and identification. A negative kind
+ * means that the driver was loaded with no force parameter
+ * (default), so we must both detect and identify the chip
+ * (actually there is only one possible kind of chip for now, LM83).
+ * A zero kind means that the driver was loaded with the force
+ * parameter, the detection step shall be skipped. A positive kind
+ * means that the driver was loaded with the force parameter and a
+ * given kind of chip is requested, so both the detection and the
+ * identification steps are skipped. */
+
+ /* Default to an LM83 if forced */
+ if (kind == 0)
+ kind = lm83;
+
+ if (kind < 0) { /* detection */
+ if (((i2c_smbus_read_byte_data(new_client, LM83_REG_R_STATUS1)
+ & 0xA8) != 0x00) ||
+ ((i2c_smbus_read_byte_data(new_client, LM83_REG_R_STATUS2)
+ & 0x48) != 0x00) ||
+ ((i2c_smbus_read_byte_data(new_client, LM83_REG_R_CONFIG)
+ & 0x41) != 0x00)) {
+ dev_dbg(&adapter->dev,
+ "LM83 detection failed at 0x%02x.\n", address);
+ goto exit_free;
+ }
+ }
+
+ if (kind <= 0) { /* identification */
+ u8 man_id, chip_id;
+
+ man_id = i2c_smbus_read_byte_data(new_client,
+ LM83_REG_R_MAN_ID);
+ chip_id = i2c_smbus_read_byte_data(new_client,
+ LM83_REG_R_CHIP_ID);
+
+ if (man_id == 0x01) { /* National Semiconductor */
+ if (chip_id == 0x03) {
+ kind = lm83;
+ }
+ }
+
+ if (kind <= 0) { /* identification failed */
+ dev_info(&adapter->dev,
+ "Unsupported chip (man_id=0x%02X, "
+ "chip_id=0x%02X).\n", man_id, chip_id);
+ goto exit_free;
+ }
+ }
+
+ if (kind == lm83) {
+ name = "lm83";
+ }
+
+ /* We can fill in the remaining client fields */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /*
+ * Initialize the LM83 chip
+ * (Nothing to do for this one.)
+ */
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp4_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_temp4_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp3_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp4_crit);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int lm83_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static struct lm83_data *lm83_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm83_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+ int nr;
+
+ dev_dbg(&client->dev, "Updating lm83 data.\n");
+ for (nr = 0; nr < 4 ; nr++) {
+ data->temp_input[nr] =
+ i2c_smbus_read_byte_data(client,
+ LM83_REG_R_TEMP[nr]);
+ data->temp_high[nr] =
+ i2c_smbus_read_byte_data(client,
+ LM83_REG_R_HIGH[nr]);
+ }
+ data->temp_crit =
+ i2c_smbus_read_byte_data(client, LM83_REG_R_TCRIT);
+ data->alarms =
+ i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS1)
+ + (i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS2)
+ << 8);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_lm83_init(void)
+{
+ return i2c_add_driver(&lm83_driver);
+}
+
+static void __exit sensors_lm83_exit(void)
+{
+ i2c_del_driver(&lm83_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM83 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm83_init);
+module_exit(sensors_lm83_exit);
diff --git a/drivers/i2c/chips/lm85.c b/drivers/i2c/chips/lm85.c
new file mode 100644
index 0000000..b1a0dc5
--- /dev/null
+++ b/drivers/i2c/chips/lm85.c
@@ -0,0 +1,1578 @@
+/*
+ lm85.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
+ Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
+ Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
+
+ Chip details at <http://www.national.com/ds/LM/LM85.pdf>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
+
+/* The LM85 registers */
+
+#define LM85_REG_IN(nr) (0x20 + (nr))
+#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
+#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
+
+#define LM85_REG_TEMP(nr) (0x25 + (nr))
+#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
+#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
+
+/* Fan speeds are LSB, MSB (2 bytes) */
+#define LM85_REG_FAN(nr) (0x28 + (nr) *2)
+#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) *2)
+
+#define LM85_REG_PWM(nr) (0x30 + (nr))
+
+#define ADT7463_REG_OPPOINT(nr) (0x33 + (nr))
+
+#define ADT7463_REG_TMIN_CTL1 0x36
+#define ADT7463_REG_TMIN_CTL2 0x37
+
+#define LM85_REG_DEVICE 0x3d
+#define LM85_REG_COMPANY 0x3e
+#define LM85_REG_VERSTEP 0x3f
+/* These are the recognized values for the above regs */
+#define LM85_DEVICE_ADX 0x27
+#define LM85_COMPANY_NATIONAL 0x01
+#define LM85_COMPANY_ANALOG_DEV 0x41
+#define LM85_COMPANY_SMSC 0x5c
+#define LM85_VERSTEP_VMASK 0xf0
+#define LM85_VERSTEP_GENERIC 0x60
+#define LM85_VERSTEP_LM85C 0x60
+#define LM85_VERSTEP_LM85B 0x62
+#define LM85_VERSTEP_ADM1027 0x60
+#define LM85_VERSTEP_ADT7463 0x62
+#define LM85_VERSTEP_ADT7463C 0x6A
+#define LM85_VERSTEP_EMC6D100_A0 0x60
+#define LM85_VERSTEP_EMC6D100_A1 0x61
+#define LM85_VERSTEP_EMC6D102 0x65
+
+#define LM85_REG_CONFIG 0x40
+
+#define LM85_REG_ALARM1 0x41
+#define LM85_REG_ALARM2 0x42
+
+#define LM85_REG_VID 0x43
+
+/* Automated FAN control */
+#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
+#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
+#define LM85_REG_AFAN_SPIKE1 0x62
+#define LM85_REG_AFAN_SPIKE2 0x63
+#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
+#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
+#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
+#define LM85_REG_AFAN_HYST1 0x6d
+#define LM85_REG_AFAN_HYST2 0x6e
+
+#define LM85_REG_TACH_MODE 0x74
+#define LM85_REG_SPINUP_CTL 0x75
+
+#define ADM1027_REG_TEMP_OFFSET(nr) (0x70 + (nr))
+#define ADM1027_REG_CONFIG2 0x73
+#define ADM1027_REG_INTMASK1 0x74
+#define ADM1027_REG_INTMASK2 0x75
+#define ADM1027_REG_EXTEND_ADC1 0x76
+#define ADM1027_REG_EXTEND_ADC2 0x77
+#define ADM1027_REG_CONFIG3 0x78
+#define ADM1027_REG_FAN_PPR 0x7b
+
+#define ADT7463_REG_THERM 0x79
+#define ADT7463_REG_THERM_LIMIT 0x7A
+
+#define EMC6D100_REG_ALARM3 0x7d
+/* IN5, IN6 and IN7 */
+#define EMC6D100_REG_IN(nr) (0x70 + ((nr)-5))
+#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr)-5) * 2)
+#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr)-5) * 2)
+#define EMC6D102_REG_EXTEND_ADC1 0x85
+#define EMC6D102_REG_EXTEND_ADC2 0x86
+#define EMC6D102_REG_EXTEND_ADC3 0x87
+#define EMC6D102_REG_EXTEND_ADC4 0x88
+
+#define LM85_ALARM_IN0 0x0001
+#define LM85_ALARM_IN1 0x0002
+#define LM85_ALARM_IN2 0x0004
+#define LM85_ALARM_IN3 0x0008
+#define LM85_ALARM_TEMP1 0x0010
+#define LM85_ALARM_TEMP2 0x0020
+#define LM85_ALARM_TEMP3 0x0040
+#define LM85_ALARM_ALARM2 0x0080
+#define LM85_ALARM_IN4 0x0100
+#define LM85_ALARM_RESERVED 0x0200
+#define LM85_ALARM_FAN1 0x0400
+#define LM85_ALARM_FAN2 0x0800
+#define LM85_ALARM_FAN3 0x1000
+#define LM85_ALARM_FAN4 0x2000
+#define LM85_ALARM_TEMP1_FAULT 0x4000
+#define LM85_ALARM_TEMP3_FAULT 0x8000
+
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ variants. Note that you should be a bit careful with which arguments
+ these macros are called: arguments may be evaluated more than once.
+ */
+
+/* IN are scaled acording to built-in resistors */
+static int lm85_scaling[] = { /* .001 Volts */
+ 2500, 2250, 3300, 5000, 12000,
+ 3300, 1500, 1800 /*EMC6D100*/
+ };
+#define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from))
+
+#define INS_TO_REG(n,val) \
+ SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
+
+#define INSEXT_FROM_REG(n,val,ext,scale) \
+ SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n])
+
+#define INS_FROM_REG(n,val) INSEXT_FROM_REG(n,val,0,1)
+
+/* FAN speed is measured using 90kHz clock */
+#define FAN_TO_REG(val) (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534))
+#define FAN_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:5400000/(val))
+
+/* Temperature is reported in .001 degC increments */
+#define TEMP_TO_REG(val) \
+ SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
+#define TEMPEXT_FROM_REG(val,ext,scale) \
+ SCALE((val)*scale + (ext),scale,1000)
+#define TEMP_FROM_REG(val) \
+ TEMPEXT_FROM_REG(val,0,1)
+
+#define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255))
+#define PWM_FROM_REG(val) (val)
+
+
+/* ZONEs have the following parameters:
+ * Limit (low) temp, 1. degC
+ * Hysteresis (below limit), 1. degC (0-15)
+ * Range of speed control, .1 degC (2-80)
+ * Critical (high) temp, 1. degC
+ *
+ * FAN PWMs have the following parameters:
+ * Reference Zone, 1, 2, 3, etc.
+ * Spinup time, .05 sec
+ * PWM value at limit/low temp, 1 count
+ * PWM Frequency, 1. Hz
+ * PWM is Min or OFF below limit, flag
+ * Invert PWM output, flag
+ *
+ * Some chips filter the temp, others the fan.
+ * Filter constant (or disabled) .1 seconds
+ */
+
+/* These are the zone temperature range encodings in .001 degree C */
+static int lm85_range_map[] = {
+ 2000, 2500, 3300, 4000, 5000, 6600,
+ 8000, 10000, 13300, 16000, 20000, 26600,
+ 32000, 40000, 53300, 80000
+ };
+static int RANGE_TO_REG( int range )
+{
+ int i;
+
+ if ( range < lm85_range_map[0] ) {
+ return 0 ;
+ } else if ( range > lm85_range_map[15] ) {
+ return 15 ;
+ } else { /* find closest match */
+ for ( i = 14 ; i >= 0 ; --i ) {
+ if ( range > lm85_range_map[i] ) { /* range bracketed */
+ if ((lm85_range_map[i+1] - range) <
+ (range - lm85_range_map[i])) {
+ i++;
+ break;
+ }
+ break;
+ }
+ }
+ }
+ return( i & 0x0f );
+}
+#define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
+
+/* These are the Acoustic Enhancement, or Temperature smoothing encodings
+ * NOTE: The enable/disable bit is INCLUDED in these encodings as the
+ * MSB (bit 3, value 8). If the enable bit is 0, the encoded value
+ * is ignored, or set to 0.
+ */
+/* These are the PWM frequency encodings */
+static int lm85_freq_map[] = { /* .1 Hz */
+ 100, 150, 230, 300, 380, 470, 620, 940
+ };
+static int FREQ_TO_REG( int freq )
+{
+ int i;
+
+ if( freq >= lm85_freq_map[7] ) { return 7 ; }
+ for( i = 0 ; i < 7 ; ++i )
+ if( freq <= lm85_freq_map[i] )
+ break ;
+ return( i & 0x07 );
+}
+#define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
+
+/* Since we can't use strings, I'm abusing these numbers
+ * to stand in for the following meanings:
+ * 1 -- PWM responds to Zone 1
+ * 2 -- PWM responds to Zone 2
+ * 3 -- PWM responds to Zone 3
+ * 23 -- PWM responds to the higher temp of Zone 2 or 3
+ * 123 -- PWM responds to highest of Zone 1, 2, or 3
+ * 0 -- PWM is always at 0% (ie, off)
+ * -1 -- PWM is always at 100%
+ * -2 -- PWM responds to manual control
+ */
+
+static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
+#define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
+
+static int ZONE_TO_REG( int zone )
+{
+ int i;
+
+ for( i = 0 ; i <= 7 ; ++i )
+ if( zone == lm85_zone_map[i] )
+ break ;
+ if( i > 7 ) /* Not found. */
+ i = 3; /* Always 100% */
+ return( (i & 0x07)<<5 );
+}
+
+#define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
+#define HYST_FROM_REG(val) ((val)*1000)
+
+#define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
+#define OFFSET_FROM_REG(val) ((val)*25)
+
+#define PPR_MASK(fan) (0x03<<(fan *2))
+#define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
+#define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
+
+/* i2c-vid.h defines vid_from_reg() */
+#define VID_FROM_REG(val,vrm) (vid_from_reg((val),(vrm)))
+
+#define ALARMS_FROM_REG(val) (val)
+
+/* Unlike some other drivers we DO NOT set initial limits. Use
+ * the config file to set limits. Some users have reported
+ * motherboards shutting down when we set limits in a previous
+ * version of the driver.
+ */
+
+/* Chip sampling rates
+ *
+ * Some sensors are not updated more frequently than once per second
+ * so it doesn't make sense to read them more often than that.
+ * We cache the results and return the saved data if the driver
+ * is called again before a second has elapsed.
+ *
+ * Also, there is significant configuration data for this chip
+ * given the automatic PWM fan control that is possible. There
+ * are about 47 bytes of config data to only 22 bytes of actual
+ * readings. So, we keep the config data up to date in the cache
+ * when it is written and only sample it once every 1 *minute*
+ */
+#define LM85_DATA_INTERVAL (HZ + HZ / 2)
+#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
+
+/* For each registered LM85, we need to keep some data in memory. That
+ data is pointed to by lm85_list[NR]->data. The structure itself is
+ dynamically allocated, at the same time when a new lm85 client is
+ allocated. */
+
+/* LM85 can automatically adjust fan speeds based on temperature
+ * This structure encapsulates an entire Zone config. There are
+ * three zones (one for each temperature input) on the lm85
+ */
+struct lm85_zone {
+ s8 limit; /* Low temp limit */
+ u8 hyst; /* Low limit hysteresis. (0-15) */
+ u8 range; /* Temp range, encoded */
+ s8 critical; /* "All fans ON" temp limit */
+ u8 off_desired; /* Actual "off" temperature specified. Preserved
+ * to prevent "drift" as other autofan control
+ * values change.
+ */
+ u8 max_desired; /* Actual "max" temperature specified. Preserved
+ * to prevent "drift" as other autofan control
+ * values change.
+ */
+};
+
+struct lm85_autofan {
+ u8 config; /* Register value */
+ u8 freq; /* PWM frequency, encoded */
+ u8 min_pwm; /* Minimum PWM value, encoded */
+ u8 min_off; /* Min PWM or OFF below "limit", flag */
+};
+
+struct lm85_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ enum chips type;
+
+ struct semaphore update_lock;
+ int valid; /* !=0 if following fields are valid */
+ unsigned long last_reading; /* In jiffies */
+ unsigned long last_config; /* In jiffies */
+
+ u8 in[8]; /* Register value */
+ u8 in_max[8]; /* Register value */
+ u8 in_min[8]; /* Register value */
+ s8 temp[3]; /* Register value */
+ s8 temp_min[3]; /* Register value */
+ s8 temp_max[3]; /* Register value */
+ s8 temp_offset[3]; /* Register value */
+ u16 fan[4]; /* Register value */
+ u16 fan_min[4]; /* Register value */
+ u8 pwm[3]; /* Register value */
+ u8 spinup_ctl; /* Register encoding, combined */
+ u8 tach_mode; /* Register encoding, combined */
+ u8 temp_ext[3]; /* Decoded values */
+ u8 in_ext[8]; /* Decoded values */
+ u8 adc_scale; /* ADC Extended bits scaling factor */
+ u8 fan_ppr; /* Register value */
+ u8 smooth[3]; /* Register encoding */
+ u8 vid; /* Register value */
+ u8 vrm; /* VRM version */
+ u8 syncpwm3; /* Saved PWM3 for TACH 2,3,4 config */
+ u8 oppoint[3]; /* Register value */
+ u16 tmin_ctl; /* Register value */
+ unsigned long therm_total; /* Cummulative therm count */
+ u8 therm_limit; /* Register value */
+ u32 alarms; /* Register encoding, combined */
+ struct lm85_autofan autofan[3];
+ struct lm85_zone zone[3];
+};
+
+static int lm85_attach_adapter(struct i2c_adapter *adapter);
+static int lm85_detect(struct i2c_adapter *adapter, int address,
+ int kind);
+static int lm85_detach_client(struct i2c_client *client);
+
+static int lm85_read_value(struct i2c_client *client, u8 register);
+static int lm85_write_value(struct i2c_client *client, u8 register, int value);
+static struct lm85_data *lm85_update_device(struct device *dev);
+static void lm85_init_client(struct i2c_client *client);
+
+
+static struct i2c_driver lm85_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm85",
+ .id = I2C_DRIVERID_LM85,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm85_attach_adapter,
+ .detach_client = lm85_detach_client,
+};
+
+
+/* 4 Fans */
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
+}
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
+}
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val);
+ lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define show_fan_offset(offset) \
+static ssize_t show_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \
+ NULL); \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_min, set_fan_##offset##_min);
+
+show_fan_offset(1);
+show_fan_offset(2);
+show_fan_offset(3);
+show_fan_offset(4);
+
+/* vid, vrm, alarms */
+
+static ssize_t show_vid_reg(struct device *dev, char *buf)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_vrm_reg(struct device *dev, char *buf)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+
+static ssize_t store_vrm_reg(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+ data->vrm = val;
+ return count;
+}
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t show_alarms_reg(struct device *dev, char *buf)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) ALARMS_FROM_REG(data->alarms));
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+/* pwm */
+
+static ssize_t show_pwm(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
+}
+static ssize_t set_pwm(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->pwm[nr] = PWM_TO_REG(val);
+ lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ int pwm_zone;
+
+ pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
+ return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
+}
+
+#define show_pwm_reg(offset) \
+static ssize_t show_pwm_##offset (struct device *dev, char *buf) \
+{ \
+ return show_pwm(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_pwm_enable##offset (struct device *dev, char *buf) \
+{ \
+ return show_pwm_enable(dev, buf, offset - 1); \
+} \
+static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
+ show_pwm_##offset, set_pwm_##offset); \
+static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO, \
+ show_pwm_enable##offset, NULL);
+
+show_pwm_reg(1);
+show_pwm_reg(2);
+show_pwm_reg(3);
+
+/* Voltages */
+
+static ssize_t show_in(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
+ data->in[nr],
+ data->in_ext[nr],
+ data->adc_scale) );
+}
+static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
+}
+static ssize_t set_in_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[nr] = INS_TO_REG(nr, val);
+ lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
+}
+static ssize_t set_in_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[nr] = INS_TO_REG(nr, val);
+ lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+#define show_in_reg(offset) \
+static ssize_t show_in_##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static ssize_t show_in_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_in_min(dev, buf, offset); \
+} \
+static ssize_t show_in_##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_in_max(dev, buf, offset); \
+} \
+static ssize_t set_in_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_min(dev, buf, count, offset); \
+} \
+static ssize_t set_in_##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_max(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset, \
+ NULL); \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in_##offset##_min, set_in_##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in_##offset##_max, set_in_##offset##_max);
+
+show_in_reg(0);
+show_in_reg(1);
+show_in_reg(2);
+show_in_reg(3);
+show_in_reg(4);
+
+/* Temps */
+
+static ssize_t show_temp(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
+ data->temp_ext[nr],
+ data->adc_scale) );
+}
+static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
+}
+static ssize_t set_temp_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_min[nr] = TEMP_TO_REG(val);
+ lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
+}
+static ssize_t set_temp_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_max[nr] = TEMP_TO_REG(val);
+ lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+#define show_temp_reg(offset) \
+static ssize_t show_temp_##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_temp_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_temp_##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_temp_max(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_max(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \
+ NULL); \
+static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_min, set_temp_##offset##_min); \
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_max, set_temp_##offset##_max);
+
+show_temp_reg(1);
+show_temp_reg(2);
+show_temp_reg(3);
+
+
+/* Automatic PWM control */
+
+static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
+}
+static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
+ | ZONE_TO_REG(val) ;
+ lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
+ data->autofan[nr].config);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
+}
+static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->autofan[nr].min_pwm = PWM_TO_REG(val);
+ lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
+ data->autofan[nr].min_pwm);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", data->autofan[nr].min_off);
+}
+static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->autofan[nr].min_off = val;
+ lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
+ | data->syncpwm3
+ | (data->autofan[0].min_off ? 0x20 : 0)
+ | (data->autofan[1].min_off ? 0x40 : 0)
+ | (data->autofan[2].min_off ? 0x80 : 0)
+ );
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
+}
+static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->autofan[nr].freq = FREQ_TO_REG(val);
+ lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+ (data->zone[nr].range << 4)
+ | data->autofan[nr].freq
+ );
+ up(&data->update_lock);
+ return count;
+}
+#define pwm_auto(offset) \
+static ssize_t show_pwm##offset##_auto_channels (struct device *dev, \
+ char *buf) \
+{ \
+ return show_pwm_auto_channels(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm##offset##_auto_channels (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm_auto_channels(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, \
+ char *buf) \
+{ \
+ return show_pwm_auto_pwm_min(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm_auto_pwm_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, \
+ char *buf) \
+{ \
+ return show_pwm_auto_pwm_minctl(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, \
+ char *buf) \
+{ \
+ return show_pwm_auto_pwm_freq(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR, \
+ show_pwm##offset##_auto_channels, \
+ set_pwm##offset##_auto_channels); \
+static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR, \
+ show_pwm##offset##_auto_pwm_min, \
+ set_pwm##offset##_auto_pwm_min); \
+static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR, \
+ show_pwm##offset##_auto_pwm_minctl, \
+ set_pwm##offset##_auto_pwm_minctl); \
+static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR, \
+ show_pwm##offset##_auto_pwm_freq, \
+ set_pwm##offset##_auto_pwm_freq);
+pwm_auto(1);
+pwm_auto(2);
+pwm_auto(3);
+
+/* Temperature settings for automatic PWM control */
+
+static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
+ HYST_FROM_REG(data->zone[nr].hyst));
+}
+static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ int min;
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ min = TEMP_FROM_REG(data->zone[nr].limit);
+ data->zone[nr].off_desired = TEMP_TO_REG(val);
+ data->zone[nr].hyst = HYST_TO_REG(min - val);
+ if ( nr == 0 || nr == 1 ) {
+ lm85_write_value(client, LM85_REG_AFAN_HYST1,
+ (data->zone[0].hyst << 4)
+ | data->zone[1].hyst
+ );
+ } else {
+ lm85_write_value(client, LM85_REG_AFAN_HYST2,
+ (data->zone[2].hyst << 4)
+ );
+ }
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
+}
+static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->zone[nr].limit = TEMP_TO_REG(val);
+ lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
+ data->zone[nr].limit);
+
+/* Update temp_auto_max and temp_auto_range */
+ data->zone[nr].range = RANGE_TO_REG(
+ TEMP_FROM_REG(data->zone[nr].max_desired) -
+ TEMP_FROM_REG(data->zone[nr].limit));
+ lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+ ((data->zone[nr].range & 0x0f) << 4)
+ | (data->autofan[nr].freq & 0x07));
+
+/* Update temp_auto_hyst and temp_auto_off */
+ data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
+ data->zone[nr].limit) - TEMP_FROM_REG(
+ data->zone[nr].off_desired));
+ if ( nr == 0 || nr == 1 ) {
+ lm85_write_value(client, LM85_REG_AFAN_HYST1,
+ (data->zone[0].hyst << 4)
+ | data->zone[1].hyst
+ );
+ } else {
+ lm85_write_value(client, LM85_REG_AFAN_HYST2,
+ (data->zone[2].hyst << 4)
+ );
+ }
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
+ RANGE_FROM_REG(data->zone[nr].range));
+}
+static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ int min;
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ min = TEMP_FROM_REG(data->zone[nr].limit);
+ data->zone[nr].max_desired = TEMP_TO_REG(val);
+ data->zone[nr].range = RANGE_TO_REG(
+ val - min);
+ lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+ ((data->zone[nr].range & 0x0f) << 4)
+ | (data->autofan[nr].freq & 0x07));
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
+{
+ struct lm85_data *data = lm85_update_device(dev);
+ return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
+}
+static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->zone[nr].critical = TEMP_TO_REG(val);
+ lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
+ data->zone[nr].critical);
+ up(&data->update_lock);
+ return count;
+}
+#define temp_auto(offset) \
+static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, \
+ char *buf) \
+{ \
+ return show_temp_auto_temp_off(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_auto_temp_off(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, \
+ char *buf) \
+{ \
+ return show_temp_auto_temp_min(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_auto_temp_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, \
+ char *buf) \
+{ \
+ return show_temp_auto_temp_max(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_auto_temp_max(dev, buf, count, offset - 1); \
+} \
+static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, \
+ char *buf) \
+{ \
+ return show_temp_auto_temp_crit(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_auto_temp_crit(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR, \
+ show_temp##offset##_auto_temp_off, \
+ set_temp##offset##_auto_temp_off); \
+static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR, \
+ show_temp##offset##_auto_temp_min, \
+ set_temp##offset##_auto_temp_min); \
+static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR, \
+ show_temp##offset##_auto_temp_max, \
+ set_temp##offset##_auto_temp_max); \
+static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR, \
+ show_temp##offset##_auto_temp_crit, \
+ set_temp##offset##_auto_temp_crit);
+temp_auto(1);
+temp_auto(2);
+temp_auto(3);
+
+int lm85_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm85_detect);
+}
+
+int lm85_detect(struct i2c_adapter *adapter, int address,
+ int kind)
+{
+ int company, verstep ;
+ struct i2c_client *new_client = NULL;
+ struct lm85_data *data;
+ int err = 0;
+ const char *type_name = "";
+
+ if (i2c_is_isa_adapter(adapter)) {
+ /* This chip has no ISA interface */
+ goto ERROR0 ;
+ };
+
+ if (!i2c_check_functionality(adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA)) {
+ /* We need to be able to do byte I/O */
+ goto ERROR0 ;
+ };
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access lm85_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto ERROR0;
+ }
+ memset(data, 0, sizeof(struct lm85_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm85_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+
+ company = lm85_read_value(new_client, LM85_REG_COMPANY);
+ verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
+
+ dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
+ " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
+ i2c_adapter_id(new_client->adapter), new_client->addr,
+ company, verstep);
+
+ /* If auto-detecting, Determine the chip type. */
+ if (kind <= 0) {
+ dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
+ i2c_adapter_id(adapter), address );
+ if( company == LM85_COMPANY_NATIONAL
+ && verstep == LM85_VERSTEP_LM85C ) {
+ kind = lm85c ;
+ } else if( company == LM85_COMPANY_NATIONAL
+ && verstep == LM85_VERSTEP_LM85B ) {
+ kind = lm85b ;
+ } else if( company == LM85_COMPANY_NATIONAL
+ && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
+ dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
+ " Defaulting to LM85.\n", verstep);
+ kind = any_chip ;
+ } else if( company == LM85_COMPANY_ANALOG_DEV
+ && verstep == LM85_VERSTEP_ADM1027 ) {
+ kind = adm1027 ;
+ } else if( company == LM85_COMPANY_ANALOG_DEV
+ && (verstep == LM85_VERSTEP_ADT7463
+ || verstep == LM85_VERSTEP_ADT7463C) ) {
+ kind = adt7463 ;
+ } else if( company == LM85_COMPANY_ANALOG_DEV
+ && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
+ dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
+ " Defaulting to Generic LM85.\n", verstep );
+ kind = any_chip ;
+ } else if( company == LM85_COMPANY_SMSC
+ && (verstep == LM85_VERSTEP_EMC6D100_A0
+ || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
+ /* Unfortunately, we can't tell a '100 from a '101
+ * from the registers. Since a '101 is a '100
+ * in a package with fewer pins and therefore no
+ * 3.3V, 1.5V or 1.8V inputs, perhaps if those
+ * inputs read 0, then it's a '101.
+ */
+ kind = emc6d100 ;
+ } else if( company == LM85_COMPANY_SMSC
+ && verstep == LM85_VERSTEP_EMC6D102) {
+ kind = emc6d102 ;
+ } else if( company == LM85_COMPANY_SMSC
+ && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
+ dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
+ dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
+ " Defaulting to Generic LM85.\n", verstep );
+ kind = any_chip ;
+ } else if( kind == any_chip
+ && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
+ dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
+ /* Leave kind as "any_chip" */
+ } else {
+ dev_dbg(&adapter->dev, "Autodetection failed\n");
+ /* Not an LM85 ... */
+ if( kind == any_chip ) { /* User used force=x,y */
+ dev_err(&adapter->dev, "Generic LM85 Version 6 not"
+ " found at %d,0x%02x. Try force_lm85c.\n",
+ i2c_adapter_id(adapter), address );
+ }
+ err = 0 ;
+ goto ERROR1;
+ }
+ }
+
+ /* Fill in the chip specific driver values */
+ if ( kind == any_chip ) {
+ type_name = "lm85";
+ } else if ( kind == lm85b ) {
+ type_name = "lm85b";
+ } else if ( kind == lm85c ) {
+ type_name = "lm85c";
+ } else if ( kind == adm1027 ) {
+ type_name = "adm1027";
+ } else if ( kind == adt7463 ) {
+ type_name = "adt7463";
+ } else if ( kind == emc6d100){
+ type_name = "emc6d100";
+ } else if ( kind == emc6d102 ) {
+ type_name = "emc6d102";
+ }
+ strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
+
+ /* Fill in the remaining client fields */
+ data->type = kind;
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR1;
+
+ /* Set the VRM version */
+ data->vrm = i2c_which_vrm();
+
+ /* Initialize the LM85 chip */
+ lm85_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan3_input);
+ device_create_file(&new_client->dev, &dev_attr_fan4_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan3_min);
+ device_create_file(&new_client->dev, &dev_attr_fan4_min);
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ device_create_file(&new_client->dev, &dev_attr_pwm2);
+ device_create_file(&new_client->dev, &dev_attr_pwm3);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
+ device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp3_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_vrm);
+ device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
+ device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
+ device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
+ device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
+ device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
+ device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
+ device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
+ device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
+ device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
+ device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
+
+ return 0;
+
+ /* Error out and cleanup code */
+ ERROR1:
+ kfree(data);
+ ERROR0:
+ return err;
+}
+
+int lm85_detach_client(struct i2c_client *client)
+{
+ i2c_detach_client(client);
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+
+int lm85_read_value(struct i2c_client *client, u8 reg)
+{
+ int res;
+
+ /* What size location is it? */
+ switch( reg ) {
+ case LM85_REG_FAN(0) : /* Read WORD data */
+ case LM85_REG_FAN(1) :
+ case LM85_REG_FAN(2) :
+ case LM85_REG_FAN(3) :
+ case LM85_REG_FAN_MIN(0) :
+ case LM85_REG_FAN_MIN(1) :
+ case LM85_REG_FAN_MIN(2) :
+ case LM85_REG_FAN_MIN(3) :
+ case LM85_REG_ALARM1 : /* Read both bytes at once */
+ res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
+ res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
+ break ;
+ case ADT7463_REG_TMIN_CTL1 : /* Read WORD MSB, LSB */
+ res = i2c_smbus_read_byte_data(client, reg) << 8 ;
+ res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
+ break ;
+ default: /* Read BYTE data */
+ res = i2c_smbus_read_byte_data(client, reg);
+ break ;
+ }
+
+ return res ;
+}
+
+int lm85_write_value(struct i2c_client *client, u8 reg, int value)
+{
+ int res ;
+
+ switch( reg ) {
+ case LM85_REG_FAN(0) : /* Write WORD data */
+ case LM85_REG_FAN(1) :
+ case LM85_REG_FAN(2) :
+ case LM85_REG_FAN(3) :
+ case LM85_REG_FAN_MIN(0) :
+ case LM85_REG_FAN_MIN(1) :
+ case LM85_REG_FAN_MIN(2) :
+ case LM85_REG_FAN_MIN(3) :
+ /* NOTE: ALARM is read only, so not included here */
+ res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
+ res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
+ break ;
+ case ADT7463_REG_TMIN_CTL1 : /* Write WORD MSB, LSB */
+ res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
+ res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
+ break ;
+ default: /* Write BYTE data */
+ res = i2c_smbus_write_byte_data(client, reg, value);
+ break ;
+ }
+
+ return res ;
+}
+
+void lm85_init_client(struct i2c_client *client)
+{
+ int value;
+ struct lm85_data *data = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "Initializing device\n");
+
+ /* Warn if part was not "READY" */
+ value = lm85_read_value(client, LM85_REG_CONFIG);
+ dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
+ if( value & 0x02 ) {
+ dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
+ i2c_adapter_id(client->adapter), client->addr );
+ };
+ if( ! (value & 0x04) ) {
+ dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
+ i2c_adapter_id(client->adapter), client->addr );
+ };
+ if( value & 0x10
+ && ( data->type == adm1027
+ || data->type == adt7463 ) ) {
+ dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. "
+ "Please report this to the lm85 maintainer.\n",
+ i2c_adapter_id(client->adapter), client->addr );
+ };
+
+ /* WE INTENTIONALLY make no changes to the limits,
+ * offsets, pwms, fans and zones. If they were
+ * configured, we don't want to mess with them.
+ * If they weren't, the default is 100% PWM, no
+ * control and will suffice until 'sensors -s'
+ * can be run by the user.
+ */
+
+ /* Start monitoring */
+ value = lm85_read_value(client, LM85_REG_CONFIG);
+ /* Try to clear LOCK, Set START, save everything else */
+ value = (value & ~ 0x02) | 0x01 ;
+ dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
+ lm85_write_value(client, LM85_REG_CONFIG, value);
+}
+
+static struct lm85_data *lm85_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if ( !data->valid ||
+ time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
+ /* Things that change quickly */
+ dev_dbg(&client->dev, "Reading sensor values\n");
+
+ /* Have to read extended bits first to "freeze" the
+ * more significant bits that are read later.
+ */
+ if ( (data->type == adm1027) || (data->type == adt7463) ) {
+ int ext1 = lm85_read_value(client,
+ ADM1027_REG_EXTEND_ADC1);
+ int ext2 = lm85_read_value(client,
+ ADM1027_REG_EXTEND_ADC2);
+ int val = (ext1 << 8) + ext2;
+
+ for(i = 0; i <= 4; i++)
+ data->in_ext[i] = (val>>(i * 2))&0x03;
+
+ for(i = 0; i <= 2; i++)
+ data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
+ }
+
+ /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
+ the emc6d102 and 2 in the adt7463 and adm1027. In all
+ other chips ext is always 0 and the value of scale is
+ irrelevant. So it is left in 4*/
+ data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
+
+ for (i = 0; i <= 4; ++i) {
+ data->in[i] =
+ lm85_read_value(client, LM85_REG_IN(i));
+ }
+
+ for (i = 0; i <= 3; ++i) {
+ data->fan[i] =
+ lm85_read_value(client, LM85_REG_FAN(i));
+ }
+
+ for (i = 0; i <= 2; ++i) {
+ data->temp[i] =
+ lm85_read_value(client, LM85_REG_TEMP(i));
+ }
+
+ for (i = 0; i <= 2; ++i) {
+ data->pwm[i] =
+ lm85_read_value(client, LM85_REG_PWM(i));
+ }
+
+ data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
+
+ if ( data->type == adt7463 ) {
+ if( data->therm_total < ULONG_MAX - 256 ) {
+ data->therm_total +=
+ lm85_read_value(client, ADT7463_REG_THERM );
+ }
+ } else if ( data->type == emc6d100 ) {
+ /* Three more voltage sensors */
+ for (i = 5; i <= 7; ++i) {
+ data->in[i] =
+ lm85_read_value(client, EMC6D100_REG_IN(i));
+ }
+ /* More alarm bits */
+ data->alarms |=
+ lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
+ } else if (data->type == emc6d102 ) {
+ /* Have to read LSB bits after the MSB ones because
+ the reading of the MSB bits has frozen the
+ LSBs (backward from the ADM1027).
+ */
+ int ext1 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC1);
+ int ext2 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC2);
+ int ext3 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC3);
+ int ext4 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC4);
+ data->in_ext[0] = ext3 & 0x0f;
+ data->in_ext[1] = ext4 & 0x0f;
+ data->in_ext[2] = (ext4 >> 4) & 0x0f;
+ data->in_ext[3] = (ext3 >> 4) & 0x0f;
+ data->in_ext[4] = (ext2 >> 4) & 0x0f;
+
+ data->temp_ext[0] = ext1 & 0x0f;
+ data->temp_ext[1] = ext2 & 0x0f;
+ data->temp_ext[2] = (ext1 >> 4) & 0x0f;
+ }
+
+ data->last_reading = jiffies ;
+ }; /* last_reading */
+
+ if ( !data->valid ||
+ time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
+ /* Things that don't change often */
+ dev_dbg(&client->dev, "Reading config values\n");
+
+ for (i = 0; i <= 4; ++i) {
+ data->in_min[i] =
+ lm85_read_value(client, LM85_REG_IN_MIN(i));
+ data->in_max[i] =
+ lm85_read_value(client, LM85_REG_IN_MAX(i));
+ }
+
+ if ( data->type == emc6d100 ) {
+ for (i = 5; i <= 7; ++i) {
+ data->in_min[i] =
+ lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
+ data->in_max[i] =
+ lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
+ }
+ }
+
+ for (i = 0; i <= 3; ++i) {
+ data->fan_min[i] =
+ lm85_read_value(client, LM85_REG_FAN_MIN(i));
+ }
+
+ for (i = 0; i <= 2; ++i) {
+ data->temp_min[i] =
+ lm85_read_value(client, LM85_REG_TEMP_MIN(i));
+ data->temp_max[i] =
+ lm85_read_value(client, LM85_REG_TEMP_MAX(i));
+ }
+
+ data->vid = lm85_read_value(client, LM85_REG_VID);
+
+ for (i = 0; i <= 2; ++i) {
+ int val ;
+ data->autofan[i].config =
+ lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
+ val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
+ data->autofan[i].freq = val & 0x07 ;
+ data->zone[i].range = (val >> 4) & 0x0f ;
+ data->autofan[i].min_pwm =
+ lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
+ data->zone[i].limit =
+ lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
+ data->zone[i].critical =
+ lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
+ }
+
+ i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
+ data->smooth[0] = i & 0x0f ;
+ data->syncpwm3 = i & 0x10 ; /* Save PWM3 config */
+ data->autofan[0].min_off = (i & 0x20) != 0 ;
+ data->autofan[1].min_off = (i & 0x40) != 0 ;
+ data->autofan[2].min_off = (i & 0x80) != 0 ;
+ i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
+ data->smooth[1] = (i>>4) & 0x0f ;
+ data->smooth[2] = i & 0x0f ;
+
+ i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
+ data->zone[0].hyst = (i>>4) & 0x0f ;
+ data->zone[1].hyst = i & 0x0f ;
+
+ i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
+ data->zone[2].hyst = (i>>4) & 0x0f ;
+
+ if ( (data->type == lm85b) || (data->type == lm85c) ) {
+ data->tach_mode = lm85_read_value(client,
+ LM85_REG_TACH_MODE );
+ data->spinup_ctl = lm85_read_value(client,
+ LM85_REG_SPINUP_CTL );
+ } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
+ if ( data->type == adt7463 ) {
+ for (i = 0; i <= 2; ++i) {
+ data->oppoint[i] = lm85_read_value(client,
+ ADT7463_REG_OPPOINT(i) );
+ }
+ data->tmin_ctl = lm85_read_value(client,
+ ADT7463_REG_TMIN_CTL1 );
+ data->therm_limit = lm85_read_value(client,
+ ADT7463_REG_THERM_LIMIT );
+ }
+ for (i = 0; i <= 2; ++i) {
+ data->temp_offset[i] = lm85_read_value(client,
+ ADM1027_REG_TEMP_OFFSET(i) );
+ }
+ data->tach_mode = lm85_read_value(client,
+ ADM1027_REG_CONFIG3 );
+ data->fan_ppr = lm85_read_value(client,
+ ADM1027_REG_FAN_PPR );
+ }
+
+ data->last_config = jiffies;
+ }; /* last_config */
+
+ data->valid = 1;
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+
+static int __init sm_lm85_init(void)
+{
+ return i2c_add_driver(&lm85_driver);
+}
+
+static void __exit sm_lm85_exit(void)
+{
+ i2c_del_driver(&lm85_driver);
+}
+
+/* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
+ * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
+ * post 2.7.0 CVS changes.
+ */
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
+MODULE_DESCRIPTION("LM85-B, LM85-C driver");
+
+module_init(sm_lm85_init);
+module_exit(sm_lm85_exit);
diff --git a/drivers/i2c/chips/lm87.c b/drivers/i2c/chips/lm87.c
new file mode 100644
index 0000000..98cabd6
--- /dev/null
+++ b/drivers/i2c/chips/lm87.c
@@ -0,0 +1,829 @@
+/*
+ * lm87.c
+ *
+ * Copyright (C) 2000 Frodo Looijaard <frodol@dds.nl>
+ * Philip Edelbrock <phil@netroedge.com>
+ * Stephen Rousset <stephen.rousset@rocketlogix.com>
+ * Dan Eaton <dan.eaton@rocketlogix.com>
+ * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+ *
+ * Original port to Linux 2.6 by Jeff Oliver.
+ *
+ * The LM87 is a sensor chip made by National Semiconductor. It monitors up
+ * to 8 voltages (including its own power source), up to three temperatures
+ * (its own plus up to two external ones) and up to two fans. The default
+ * configuration is 6 voltages, two temperatures and two fans (see below).
+ * Voltages are scaled internally with ratios such that the nominal value of
+ * each voltage correspond to a register value of 192 (which means a
+ * resolution of about 0.5% of the nominal value). Temperature values are
+ * reported with a 1 deg resolution and a 3-4 deg accuracy. Complete
+ * datasheet can be obtained from National's website at:
+ * http://www.national.com/pf/LM/LM87.html
+ *
+ * Some functions share pins, so not all functions are available at the same
+ * time. Which are depends on the hardware setup. This driver assumes that
+ * the BIOS configured the chip correctly. In that respect, it differs from
+ * the original driver (from lm_sensors for Linux 2.4), which would force the
+ * LM87 to an arbitrary, compile-time chosen mode, regardless of the actual
+ * chipset wiring.
+ * For reference, here is the list of exclusive functions:
+ * - in0+in5 (default) or temp3
+ * - fan1 (default) or in6
+ * - fan2 (default) or in7
+ * - VID lines (default) or IRQ lines (not handled by this driver)
+ *
+ * The LM87 additionally features an analog output, supposedly usable to
+ * control the speed of a fan. All new chips use pulse width modulation
+ * instead. The LM87 is the only hardware monitoring chipset I know of
+ * which uses amplitude modulation. Be careful when using this feature.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+
+/*
+ * Addresses to scan
+ * LM87 has three possible addresses: 0x2c, 0x2d and 0x2e.
+ */
+
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_1(lm87);
+
+/*
+ * The LM87 registers
+ */
+
+/* nr in 0..5 */
+#define LM87_REG_IN(nr) (0x20 + (nr))
+#define LM87_REG_IN_MAX(nr) (0x2B + (nr) * 2)
+#define LM87_REG_IN_MIN(nr) (0x2C + (nr) * 2)
+/* nr in 0..1 */
+#define LM87_REG_AIN(nr) (0x28 + (nr))
+#define LM87_REG_AIN_MIN(nr) (0x1A + (nr))
+#define LM87_REG_AIN_MAX(nr) (0x3B + (nr))
+
+static u8 LM87_REG_TEMP[3] = { 0x27, 0x26, 0x20 };
+static u8 LM87_REG_TEMP_HIGH[3] = { 0x39, 0x37, 0x2B };
+static u8 LM87_REG_TEMP_LOW[3] = { 0x3A, 0x38, 0x2C };
+
+#define LM87_REG_TEMP_HW_INT_LOCK 0x13
+#define LM87_REG_TEMP_HW_EXT_LOCK 0x14
+#define LM87_REG_TEMP_HW_INT 0x17
+#define LM87_REG_TEMP_HW_EXT 0x18
+
+/* nr in 0..1 */
+#define LM87_REG_FAN(nr) (0x28 + (nr))
+#define LM87_REG_FAN_MIN(nr) (0x3B + (nr))
+#define LM87_REG_AOUT 0x19
+
+#define LM87_REG_CONFIG 0x40
+#define LM87_REG_CHANNEL_MODE 0x16
+#define LM87_REG_VID_FAN_DIV 0x47
+#define LM87_REG_VID4 0x49
+
+#define LM87_REG_ALARMS1 0x41
+#define LM87_REG_ALARMS2 0x42
+
+#define LM87_REG_COMPANY_ID 0x3E
+#define LM87_REG_REVISION 0x3F
+
+/*
+ * Conversions and various macros
+ * The LM87 uses signed 8-bit values for temperatures.
+ */
+
+#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192)
+#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \
+ (val) * 192 >= (scale) * 255 ? 255 : \
+ ((val) * 192 + (scale)/2) / (scale))
+
+#define TEMP_FROM_REG(reg) ((reg) * 1000)
+#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \
+ (val) >= 126500 ? 127 : \
+ (((val) < 0 ? (val)-500 : (val)+500) / 1000))
+
+#define FAN_FROM_REG(reg,div) ((reg) == 255 || (reg) == 0 ? 0 : \
+ 1350000 + (reg)*(div) / 2) / ((reg)*(div))
+#define FAN_TO_REG(val,div) ((val)*(div) * 255 <= 1350000 ? 255 : \
+ (1350000 + (val)*(div) / 2) / ((val)*(div)))
+
+#define FAN_DIV_FROM_REG(reg) (1 << (reg))
+
+/* analog out is 9.80mV/LSB */
+#define AOUT_FROM_REG(reg) (((reg) * 98 + 5) / 10)
+#define AOUT_TO_REG(val) ((val) <= 0 ? 0 : \
+ (val) >= 2500 ? 255 : \
+ ((val) * 10 + 49) / 98)
+
+/* nr in 0..1 */
+#define CHAN_NO_FAN(nr) (1 << (nr))
+#define CHAN_TEMP3 (1 << 2)
+#define CHAN_VCC_5V (1 << 3)
+#define CHAN_NO_VID (1 << 8)
+
+/*
+ * Functions declaration
+ */
+
+static int lm87_attach_adapter(struct i2c_adapter *adapter);
+static int lm87_detect(struct i2c_adapter *adapter, int address, int kind);
+static void lm87_init_client(struct i2c_client *client);
+static int lm87_detach_client(struct i2c_client *client);
+static struct lm87_data *lm87_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver lm87_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm87",
+ .id = I2C_DRIVERID_LM87,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm87_attach_adapter,
+ .detach_client = lm87_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm87_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u8 channel; /* register value */
+
+ u8 in[8]; /* register value */
+ u8 in_max[8]; /* register value */
+ u8 in_min[8]; /* register value */
+ u16 in_scale[8];
+
+ s8 temp[3]; /* register value */
+ s8 temp_high[3]; /* register value */
+ s8 temp_low[3]; /* register value */
+ s8 temp_crit_int; /* min of two register values */
+ s8 temp_crit_ext; /* min of two register values */
+
+ u8 fan[2]; /* register value */
+ u8 fan_min[2]; /* register value */
+ u8 fan_div[2]; /* register value, shifted right */
+ u8 aout; /* register value */
+
+ u16 alarms; /* register values, combined */
+ u8 vid; /* register values, combined */
+ u8 vrm;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static inline int lm87_read_value(struct i2c_client *client, u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int lm87_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+#define show_in(offset) \
+static ssize_t show_in##offset##_input(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
+ data->in_scale[offset])); \
+} \
+static ssize_t show_in##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
+ data->in_scale[offset])); \
+} \
+static ssize_t show_in##offset##_max(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
+ data->in_scale[offset])); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+ show_in##offset##_input, NULL);
+show_in(0);
+show_in(1);
+show_in(2);
+show_in(3);
+show_in(4);
+show_in(5);
+show_in(6);
+show_in(7);
+
+static void set_in_min(struct device *dev, const char *buf, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[nr] = IN_TO_REG(val, data->in_scale[nr]);
+ lm87_write_value(client, nr<6 ? LM87_REG_IN_MIN(nr) :
+ LM87_REG_AIN_MIN(nr-6), data->in_min[nr]);
+ up(&data->update_lock);
+}
+
+static void set_in_max(struct device *dev, const char *buf, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[nr] = IN_TO_REG(val, data->in_scale[nr]);
+ lm87_write_value(client, nr<6 ? LM87_REG_IN_MAX(nr) :
+ LM87_REG_AIN_MAX(nr-6), data->in_max[nr]);
+ up(&data->update_lock);
+}
+
+#define set_in(offset) \
+static ssize_t set_in##offset##_min(struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ set_in_min(dev, buf, offset); \
+ return count; \
+} \
+static ssize_t set_in##offset##_max(struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ set_in_max(dev, buf, offset); \
+ return count; \
+} \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in##offset##_max, set_in##offset##_max);
+set_in(0);
+set_in(1);
+set_in(2);
+set_in(3);
+set_in(4);
+set_in(5);
+set_in(6);
+set_in(7);
+
+#define show_temp(offset) \
+static ssize_t show_temp##offset##_input(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
+} \
+static ssize_t show_temp##offset##_low(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[offset-1])); \
+} \
+static ssize_t show_temp##offset##_high(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[offset-1])); \
+}\
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+ show_temp##offset##_input, NULL);
+show_temp(1);
+show_temp(2);
+show_temp(3);
+
+static void set_temp_low(struct device *dev, const char *buf, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_low[nr] = TEMP_TO_REG(val);
+ lm87_write_value(client, LM87_REG_TEMP_LOW[nr], data->temp_low[nr]);
+ up(&data->update_lock);
+}
+
+static void set_temp_high(struct device *dev, const char *buf, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_high[nr] = TEMP_TO_REG(val);
+ lm87_write_value(client, LM87_REG_TEMP_HIGH[nr], data->temp_high[nr]);
+ up(&data->update_lock);
+}
+
+#define set_temp(offset) \
+static ssize_t set_temp##offset##_low(struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ set_temp_low(dev, buf, offset-1); \
+ return count; \
+} \
+static ssize_t set_temp##offset##_high(struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ set_temp_high(dev, buf, offset-1); \
+ return count; \
+} \
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+ show_temp##offset##_high, set_temp##offset##_high); \
+static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
+ show_temp##offset##_low, set_temp##offset##_low);
+set_temp(1);
+set_temp(2);
+set_temp(3);
+
+static ssize_t show_temp_crit_int(struct device *dev, char *buf)
+{
+ struct lm87_data *data = lm87_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_int));
+}
+
+static ssize_t show_temp_crit_ext(struct device *dev, char *buf)
+{
+ struct lm87_data *data = lm87_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_ext));
+}
+
+static DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit_int, NULL);
+static DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit_ext, NULL);
+static DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit_ext, NULL);
+
+#define show_fan(offset) \
+static ssize_t show_fan##offset##_input(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[offset-1], \
+ FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \
+} \
+static ssize_t show_fan##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[offset-1], \
+ FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \
+} \
+static ssize_t show_fan##offset##_div(struct device *dev, char *buf) \
+{ \
+ struct lm87_data *data = lm87_update_device(dev); \
+ return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[offset-1])); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
+ show_fan##offset##_input, NULL);
+show_fan(1);
+show_fan(2);
+
+static void set_fan_min(struct device *dev, const char *buf, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val,
+ FAN_DIV_FROM_REG(data->fan_div[nr]));
+ lm87_write_value(client, LM87_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan clock divider. This follows the principle
+ of least suprise; the user doesn't expect the fan minimum to change just
+ because the divider changed. */
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+ unsigned long min;
+ u8 reg;
+
+ down(&data->update_lock);
+ min = FAN_FROM_REG(data->fan_min[nr],
+ FAN_DIV_FROM_REG(data->fan_div[nr]));
+
+ switch (val) {
+ case 1: data->fan_div[nr] = 0; break;
+ case 2: data->fan_div[nr] = 1; break;
+ case 4: data->fan_div[nr] = 2; break;
+ case 8: data->fan_div[nr] = 3; break;
+ default:
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ reg = lm87_read_value(client, LM87_REG_VID_FAN_DIV);
+ switch (nr) {
+ case 0:
+ reg = (reg & 0xCF) | (data->fan_div[0] << 4);
+ break;
+ case 1:
+ reg = (reg & 0x3F) | (data->fan_div[1] << 6);
+ break;
+ }
+ lm87_write_value(client, LM87_REG_VID_FAN_DIV, reg);
+
+ data->fan_min[nr] = FAN_TO_REG(min, val);
+ lm87_write_value(client, LM87_REG_FAN_MIN(nr),
+ data->fan_min[nr]);
+ up(&data->update_lock);
+
+ return count;
+}
+
+#define set_fan(offset) \
+static ssize_t set_fan##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ set_fan_min(dev, buf, offset-1); \
+ return count; \
+} \
+static ssize_t set_fan##offset##_div(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, offset-1); \
+} \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan##offset##_min, set_fan##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ show_fan##offset##_div, set_fan##offset##_div);
+set_fan(1);
+set_fan(2);
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct lm87_data *data = lm87_update_device(dev);
+ return sprintf(buf, "%d\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_vid(struct device *dev, char *buf)
+{
+ struct lm87_data *data = lm87_update_device(dev);
+ return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+static ssize_t show_vrm(struct device *dev, char *buf)
+{
+ struct lm87_data *data = lm87_update_device(dev);
+ return sprintf(buf, "%d\n", data->vrm);
+}
+static ssize_t set_vrm(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ data->vrm = simple_strtoul(buf, NULL, 10);
+ return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+static ssize_t show_aout(struct device *dev, char *buf)
+{
+ struct lm87_data *data = lm87_update_device(dev);
+ return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout));
+}
+static ssize_t set_aout(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->aout = AOUT_TO_REG(val);
+ lm87_write_value(client, LM87_REG_AOUT, data->aout);
+ up(&data->update_lock);
+ return count;
+}
+static DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout);
+
+/*
+ * Real code
+ */
+
+static int lm87_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm87_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int lm87_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct lm87_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct lm87_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm87_data));
+
+ /* The common I2C client data is placed right before the
+ LM87-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm87_driver;
+ new_client->flags = 0;
+
+ /* Default to an LM87 if forced */
+ if (kind == 0)
+ kind = lm87;
+
+ /* Now, we do the remaining detection. */
+ if (kind < 0) {
+ u8 rev = lm87_read_value(new_client, LM87_REG_REVISION);
+
+ if (rev < 0x01 || rev > 0x08
+ || (lm87_read_value(new_client, LM87_REG_CONFIG) & 0x80)
+ || lm87_read_value(new_client, LM87_REG_COMPANY_ID) != 0x02) {
+ dev_dbg(&adapter->dev,
+ "LM87 detection failed at 0x%02x.\n",
+ address);
+ goto exit_free;
+ }
+ }
+
+ /* We can fill in the remaining client fields */
+ strlcpy(new_client->name, "lm87", I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the LM87 chip */
+ lm87_init_client(new_client);
+
+ data->in_scale[0] = 2500;
+ data->in_scale[1] = 2700;
+ data->in_scale[2] = (data->channel & CHAN_VCC_5V) ? 5000 : 3300;
+ data->in_scale[3] = 5000;
+ data->in_scale[4] = 12000;
+ data->in_scale[5] = 2700;
+ data->in_scale[6] = 1875;
+ data->in_scale[7] = 1875;
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+
+ if (data->channel & CHAN_NO_FAN(0)) {
+ device_create_file(&new_client->dev, &dev_attr_in6_input);
+ device_create_file(&new_client->dev, &dev_attr_in6_min);
+ device_create_file(&new_client->dev, &dev_attr_in6_max);
+ } else {
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ }
+ if (data->channel & CHAN_NO_FAN(1)) {
+ device_create_file(&new_client->dev, &dev_attr_in7_input);
+ device_create_file(&new_client->dev, &dev_attr_in7_min);
+ device_create_file(&new_client->dev, &dev_attr_in7_max);
+ } else {
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ }
+
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+
+ if (data->channel & CHAN_TEMP3) {
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_min);
+ device_create_file(&new_client->dev, &dev_attr_temp3_crit);
+ } else {
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in5_input);
+ device_create_file(&new_client->dev, &dev_attr_in5_min);
+ device_create_file(&new_client->dev, &dev_attr_in5_max);
+ }
+
+ if (!(data->channel & CHAN_NO_VID)) {
+ device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
+ device_create_file(&new_client->dev, &dev_attr_vrm);
+ }
+
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ device_create_file(&new_client->dev, &dev_attr_aout_output);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static void lm87_init_client(struct i2c_client *client)
+{
+ struct lm87_data *data = i2c_get_clientdata(client);
+ u8 config;
+
+ data->channel = lm87_read_value(client, LM87_REG_CHANNEL_MODE);
+ data->vrm = i2c_which_vrm();
+
+ config = lm87_read_value(client, LM87_REG_CONFIG);
+ if (!(config & 0x01)) {
+ int i;
+
+ /* Limits are left uninitialized after power-up */
+ for (i = 1; i < 6; i++) {
+ lm87_write_value(client, LM87_REG_IN_MIN(i), 0x00);
+ lm87_write_value(client, LM87_REG_IN_MAX(i), 0xFF);
+ }
+ for (i = 0; i < 2; i++) {
+ lm87_write_value(client, LM87_REG_TEMP_HIGH[i], 0x7F);
+ lm87_write_value(client, LM87_REG_TEMP_LOW[i], 0x00);
+ lm87_write_value(client, LM87_REG_AIN_MIN(i), 0x00);
+ lm87_write_value(client, LM87_REG_AIN_MAX(i), 0xFF);
+ }
+ if (data->channel & CHAN_TEMP3) {
+ lm87_write_value(client, LM87_REG_TEMP_HIGH[2], 0x7F);
+ lm87_write_value(client, LM87_REG_TEMP_LOW[2], 0x00);
+ } else {
+ lm87_write_value(client, LM87_REG_IN_MIN(0), 0x00);
+ lm87_write_value(client, LM87_REG_IN_MAX(0), 0xFF);
+ }
+ }
+ if ((config & 0x81) != 0x01) {
+ /* Start monitoring */
+ lm87_write_value(client, LM87_REG_CONFIG,
+ (config & 0xF7) | 0x01);
+ }
+}
+
+static int lm87_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static struct lm87_data *lm87_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm87_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+ int i, j;
+
+ dev_dbg(&client->dev, "Updating data.\n");
+
+ i = (data->channel & CHAN_TEMP3) ? 1 : 0;
+ j = (data->channel & CHAN_TEMP3) ? 5 : 6;
+ for (; i < j; i++) {
+ data->in[i] = lm87_read_value(client,
+ LM87_REG_IN(i));
+ data->in_min[i] = lm87_read_value(client,
+ LM87_REG_IN_MIN(i));
+ data->in_max[i] = lm87_read_value(client,
+ LM87_REG_IN_MAX(i));
+ }
+
+ for (i = 0; i < 2; i++) {
+ if (data->channel & CHAN_NO_FAN(i)) {
+ data->in[6+i] = lm87_read_value(client,
+ LM87_REG_AIN(i));
+ data->in_max[6+i] = lm87_read_value(client,
+ LM87_REG_AIN_MAX(i));
+ data->in_min[6+i] = lm87_read_value(client,
+ LM87_REG_AIN_MIN(i));
+
+ } else {
+ data->fan[i] = lm87_read_value(client,
+ LM87_REG_FAN(i));
+ data->fan_min[i] = lm87_read_value(client,
+ LM87_REG_FAN_MIN(i));
+ }
+ }
+
+ j = (data->channel & CHAN_TEMP3) ? 3 : 2;
+ for (i = 0 ; i < j; i++) {
+ data->temp[i] = lm87_read_value(client,
+ LM87_REG_TEMP[i]);
+ data->temp_high[i] = lm87_read_value(client,
+ LM87_REG_TEMP_HIGH[i]);
+ data->temp_low[i] = lm87_read_value(client,
+ LM87_REG_TEMP_LOW[i]);
+ }
+
+ i = lm87_read_value(client, LM87_REG_TEMP_HW_INT_LOCK);
+ j = lm87_read_value(client, LM87_REG_TEMP_HW_INT);
+ data->temp_crit_int = min(i, j);
+
+ i = lm87_read_value(client, LM87_REG_TEMP_HW_EXT_LOCK);
+ j = lm87_read_value(client, LM87_REG_TEMP_HW_EXT);
+ data->temp_crit_ext = min(i, j);
+
+ i = lm87_read_value(client, LM87_REG_VID_FAN_DIV);
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = (i >> 6) & 0x03;
+ data->vid = (i & 0x0F)
+ | (lm87_read_value(client, LM87_REG_VID4) & 0x01)
+ << 4;
+
+ data->alarms = lm87_read_value(client, LM87_REG_ALARMS1)
+ | (lm87_read_value(client, LM87_REG_ALARMS2)
+ << 8);
+ data->aout = lm87_read_value(client, LM87_REG_AOUT);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_lm87_init(void)
+{
+ return i2c_add_driver(&lm87_driver);
+}
+
+static void __exit sensors_lm87_exit(void)
+{
+ i2c_del_driver(&lm87_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org> and others");
+MODULE_DESCRIPTION("LM87 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm87_init);
+module_exit(sensors_lm87_exit);
diff --git a/drivers/i2c/chips/lm90.c b/drivers/i2c/chips/lm90.c
new file mode 100644
index 0000000..2c00ff8
--- /dev/null
+++ b/drivers/i2c/chips/lm90.c
@@ -0,0 +1,626 @@
+/*
+ * lm90.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
+ *
+ * Based on the lm83 driver. The LM90 is a sensor chip made by National
+ * Semiconductor. It reports up to two temperatures (its own plus up to
+ * one external one) with a 0.125 deg resolution (1 deg for local
+ * temperature) and a 3-4 deg accuracy. Complete datasheet can be
+ * obtained from National's website at:
+ * http://www.national.com/pf/LM/LM90.html
+ *
+ * This driver also supports the LM89 and LM99, two other sensor chips
+ * made by National Semiconductor. Both have an increased remote
+ * temperature measurement accuracy (1 degree), and the LM99
+ * additionally shifts remote temperatures (measured and limits) by 16
+ * degrees, which allows for higher temperatures measurement. The
+ * driver doesn't handle it since it can be done easily in user-space.
+ * Complete datasheets can be obtained from National's website at:
+ * http://www.national.com/pf/LM/LM89.html
+ * http://www.national.com/pf/LM/LM99.html
+ * Note that there is no way to differenciate between both chips.
+ *
+ * This driver also supports the LM86, another sensor chip made by
+ * National Semiconductor. It is exactly similar to the LM90 except it
+ * has a higher accuracy.
+ * Complete datasheet can be obtained from National's website at:
+ * http://www.national.com/pf/LM/LM86.html
+ *
+ * This driver also supports the ADM1032, a sensor chip made by Analog
+ * Devices. That chip is similar to the LM90, with a few differences
+ * that are not handled by this driver. Complete datasheet can be
+ * obtained from Analog's website at:
+ * http://products.analog.com/products/info.asp?product=ADM1032
+ * Among others, it has a higher accuracy than the LM90, much like the
+ * LM86 does.
+ *
+ * This driver also supports the MAX6657, MAX6658 and MAX6659 sensor
+ * chips made by Maxim. These chips are similar to the LM86. Complete
+ * datasheet can be obtained at Maxim's website at:
+ * http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2578
+ * Note that there is no easy way to differenciate between the three
+ * variants. The extra address and features of the MAX6659 are not
+ * supported by this driver.
+ *
+ * This driver also supports the ADT7461 chip from Analog Devices but
+ * only in its "compatability mode". If an ADT7461 chip is found but
+ * is configured in non-compatible mode (where its temperature
+ * register values are decoded differently) it is ignored by this
+ * driver. Complete datasheet can be obtained from Analog's website
+ * at:
+ * http://products.analog.com/products/info.asp?product=ADT7461
+ *
+ * Since the LM90 was the first chipset supported by this driver, most
+ * comments will refer to this chipset, but are actually general and
+ * concern all supported chipsets, unless mentioned otherwise.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/*
+ * Addresses to scan
+ * Address is fully defined internally and cannot be changed except for
+ * MAX6659.
+ * LM86, LM89, LM90, LM99, ADM1032, MAX6657 and MAX6658 have address 0x4c.
+ * LM89-1, and LM99-1 have address 0x4d.
+ * MAX6659 can have address 0x4c, 0x4d or 0x4e (unsupported).
+ * ADT7461 always has address 0x4c.
+ */
+
+static unsigned short normal_i2c[] = { 0x4c, 0x4d, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_6(lm90, adm1032, lm99, lm86, max6657, adt7461);
+
+/*
+ * The LM90 registers
+ */
+
+#define LM90_REG_R_MAN_ID 0xFE
+#define LM90_REG_R_CHIP_ID 0xFF
+#define LM90_REG_R_CONFIG1 0x03
+#define LM90_REG_W_CONFIG1 0x09
+#define LM90_REG_R_CONFIG2 0xBF
+#define LM90_REG_W_CONFIG2 0xBF
+#define LM90_REG_R_CONVRATE 0x04
+#define LM90_REG_W_CONVRATE 0x0A
+#define LM90_REG_R_STATUS 0x02
+#define LM90_REG_R_LOCAL_TEMP 0x00
+#define LM90_REG_R_LOCAL_HIGH 0x05
+#define LM90_REG_W_LOCAL_HIGH 0x0B
+#define LM90_REG_R_LOCAL_LOW 0x06
+#define LM90_REG_W_LOCAL_LOW 0x0C
+#define LM90_REG_R_LOCAL_CRIT 0x20
+#define LM90_REG_W_LOCAL_CRIT 0x20
+#define LM90_REG_R_REMOTE_TEMPH 0x01
+#define LM90_REG_R_REMOTE_TEMPL 0x10
+#define LM90_REG_R_REMOTE_OFFSH 0x11
+#define LM90_REG_W_REMOTE_OFFSH 0x11
+#define LM90_REG_R_REMOTE_OFFSL 0x12
+#define LM90_REG_W_REMOTE_OFFSL 0x12
+#define LM90_REG_R_REMOTE_HIGHH 0x07
+#define LM90_REG_W_REMOTE_HIGHH 0x0D
+#define LM90_REG_R_REMOTE_HIGHL 0x13
+#define LM90_REG_W_REMOTE_HIGHL 0x13
+#define LM90_REG_R_REMOTE_LOWH 0x08
+#define LM90_REG_W_REMOTE_LOWH 0x0E
+#define LM90_REG_R_REMOTE_LOWL 0x14
+#define LM90_REG_W_REMOTE_LOWL 0x14
+#define LM90_REG_R_REMOTE_CRIT 0x19
+#define LM90_REG_W_REMOTE_CRIT 0x19
+#define LM90_REG_R_TCRIT_HYST 0x21
+#define LM90_REG_W_TCRIT_HYST 0x21
+
+/*
+ * Conversions and various macros
+ * For local temperatures and limits, critical limits and the hysteresis
+ * value, the LM90 uses signed 8-bit values with LSB = 1 degree Celcius.
+ * For remote temperatures and limits, it uses signed 11-bit values with
+ * LSB = 0.125 degree Celcius, left-justified in 16-bit registers.
+ */
+
+#define TEMP1_FROM_REG(val) ((val) * 1000)
+#define TEMP1_TO_REG(val) ((val) <= -128000 ? -128 : \
+ (val) >= 127000 ? 127 : \
+ (val) < 0 ? ((val) - 500) / 1000 : \
+ ((val) + 500) / 1000)
+#define TEMP2_FROM_REG(val) ((val) / 32 * 125)
+#define TEMP2_TO_REG(val) ((val) <= -128000 ? 0x8000 : \
+ (val) >= 127875 ? 0x7FE0 : \
+ (val) < 0 ? ((val) - 62) / 125 * 32 : \
+ ((val) + 62) / 125 * 32)
+#define HYST_TO_REG(val) ((val) <= 0 ? 0 : (val) >= 30500 ? 31 : \
+ ((val) + 500) / 1000)
+
+/*
+ * ADT7461 is almost identical to LM90 except that attempts to write
+ * values that are outside the range 0 < temp < 127 are treated as
+ * the boundary value.
+ */
+
+#define TEMP1_TO_REG_ADT7461(val) ((val) <= 0 ? 0 : \
+ (val) >= 127000 ? 127 : \
+ ((val) + 500) / 1000)
+#define TEMP2_TO_REG_ADT7461(val) ((val) <= 0 ? 0 : \
+ (val) >= 127750 ? 0x7FC0 : \
+ ((val) + 125) / 250 * 64)
+
+/*
+ * Functions declaration
+ */
+
+static int lm90_attach_adapter(struct i2c_adapter *adapter);
+static int lm90_detect(struct i2c_adapter *adapter, int address,
+ int kind);
+static void lm90_init_client(struct i2c_client *client);
+static int lm90_detach_client(struct i2c_client *client);
+static struct lm90_data *lm90_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver lm90_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm90",
+ .id = I2C_DRIVERID_LM90,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm90_attach_adapter,
+ .detach_client = lm90_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm90_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+ int kind;
+
+ /* registers values */
+ s8 temp_input1, temp_low1, temp_high1; /* local */
+ s16 temp_input2, temp_low2, temp_high2; /* remote, combined */
+ s8 temp_crit1, temp_crit2;
+ u8 temp_hyst;
+ u8 alarms; /* bitvector */
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show_temp(value, converter) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm90_data *data = lm90_update_device(dev); \
+ return sprintf(buf, "%d\n", converter(data->value)); \
+}
+show_temp(temp_input1, TEMP1_FROM_REG);
+show_temp(temp_input2, TEMP2_FROM_REG);
+show_temp(temp_low1, TEMP1_FROM_REG);
+show_temp(temp_low2, TEMP2_FROM_REG);
+show_temp(temp_high1, TEMP1_FROM_REG);
+show_temp(temp_high2, TEMP2_FROM_REG);
+show_temp(temp_crit1, TEMP1_FROM_REG);
+show_temp(temp_crit2, TEMP1_FROM_REG);
+
+#define set_temp1(value, reg) \
+static ssize_t set_##value(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm90_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ if (data->kind == adt7461) \
+ data->value = TEMP1_TO_REG_ADT7461(val); \
+ else \
+ data->value = TEMP1_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+#define set_temp2(value, regh, regl) \
+static ssize_t set_##value(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm90_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ if (data->kind == adt7461) \
+ data->value = TEMP2_TO_REG_ADT7461(val); \
+ else \
+ data->value = TEMP2_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, regh, data->value >> 8); \
+ i2c_smbus_write_byte_data(client, regl, data->value & 0xff); \
+ up(&data->update_lock); \
+ return count; \
+}
+set_temp1(temp_low1, LM90_REG_W_LOCAL_LOW);
+set_temp2(temp_low2, LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL);
+set_temp1(temp_high1, LM90_REG_W_LOCAL_HIGH);
+set_temp2(temp_high2, LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL);
+set_temp1(temp_crit1, LM90_REG_W_LOCAL_CRIT);
+set_temp1(temp_crit2, LM90_REG_W_REMOTE_CRIT);
+
+#define show_temp_hyst(value, basereg) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm90_data *data = lm90_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->basereg) \
+ - TEMP1_FROM_REG(data->temp_hyst)); \
+}
+show_temp_hyst(temp_hyst1, temp_crit1);
+show_temp_hyst(temp_hyst2, temp_crit2);
+
+static ssize_t set_temp_hyst1(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm90_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+ long hyst;
+
+ down(&data->update_lock);
+ hyst = TEMP1_FROM_REG(data->temp_crit1) - val;
+ i2c_smbus_write_byte_data(client, LM90_REG_W_TCRIT_HYST,
+ HYST_TO_REG(hyst));
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct lm90_data *data = lm90_update_device(dev);
+ return sprintf(buf, "%d\n", data->alarms);
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL);
+static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_low1,
+ set_temp_low1);
+static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_low2,
+ set_temp_low2);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_high1,
+ set_temp_high1);
+static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2,
+ set_temp_high2);
+static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_crit1,
+ set_temp_crit1);
+static DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit2,
+ set_temp_crit2);
+static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst1,
+ set_temp_hyst1);
+static DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_hyst2, NULL);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+/*
+ * Real code
+ */
+
+static int lm90_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm90_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct lm90_data *data;
+ int err = 0;
+ const char *name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct lm90_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm90_data));
+
+ /* The common I2C client data is placed right before the
+ LM90-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm90_driver;
+ new_client->flags = 0;
+
+ /*
+ * Now we do the remaining detection. A negative kind means that
+ * the driver was loaded with no force parameter (default), so we
+ * must both detect and identify the chip. A zero kind means that
+ * the driver was loaded with the force parameter, the detection
+ * step shall be skipped. A positive kind means that the driver
+ * was loaded with the force parameter and a given kind of chip is
+ * requested, so both the detection and the identification steps
+ * are skipped.
+ */
+
+ /* Default to an LM90 if forced */
+ if (kind == 0)
+ kind = lm90;
+
+ if (kind < 0) { /* detection and identification */
+ u8 man_id, chip_id, reg_config1, reg_convrate;
+
+ man_id = i2c_smbus_read_byte_data(new_client,
+ LM90_REG_R_MAN_ID);
+ chip_id = i2c_smbus_read_byte_data(new_client,
+ LM90_REG_R_CHIP_ID);
+ reg_config1 = i2c_smbus_read_byte_data(new_client,
+ LM90_REG_R_CONFIG1);
+ reg_convrate = i2c_smbus_read_byte_data(new_client,
+ LM90_REG_R_CONVRATE);
+
+ if (man_id == 0x01) { /* National Semiconductor */
+ u8 reg_config2;
+
+ reg_config2 = i2c_smbus_read_byte_data(new_client,
+ LM90_REG_R_CONFIG2);
+
+ if ((reg_config1 & 0x2A) == 0x00
+ && (reg_config2 & 0xF8) == 0x00
+ && reg_convrate <= 0x09) {
+ if (address == 0x4C
+ && (chip_id & 0xF0) == 0x20) { /* LM90 */
+ kind = lm90;
+ } else
+ if ((chip_id & 0xF0) == 0x30) { /* LM89/LM99 */
+ kind = lm99;
+ } else
+ if (address == 0x4C
+ && (chip_id & 0xF0) == 0x10) { /* LM86 */
+ kind = lm86;
+ }
+ }
+ } else
+ if (man_id == 0x41) { /* Analog Devices */
+ if (address == 0x4C
+ && (chip_id & 0xF0) == 0x40 /* ADM1032 */
+ && (reg_config1 & 0x3F) == 0x00
+ && reg_convrate <= 0x0A) {
+ kind = adm1032;
+ } else
+ if (address == 0x4c
+ && chip_id == 0x51 /* ADT7461 */
+ && (reg_config1 & 0x1F) == 0x00 /* check compat mode */
+ && reg_convrate <= 0x0A) {
+ kind = adt7461;
+ }
+ } else
+ if (man_id == 0x4D) { /* Maxim */
+ /*
+ * The Maxim variants do NOT have a chip_id register.
+ * Reading from that address will return the last read
+ * value, which in our case is those of the man_id
+ * register. Likewise, the config1 register seems to
+ * lack a low nibble, so the value will be those of the
+ * previous read, so in our case those of the man_id
+ * register.
+ */
+ if (chip_id == man_id
+ && (reg_config1 & 0x1F) == (man_id & 0x0F)
+ && reg_convrate <= 0x09) {
+ kind = max6657;
+ }
+ }
+
+ if (kind <= 0) { /* identification failed */
+ dev_info(&adapter->dev,
+ "Unsupported chip (man_id=0x%02X, "
+ "chip_id=0x%02X).\n", man_id, chip_id);
+ goto exit_free;
+ }
+ }
+
+ if (kind == lm90) {
+ name = "lm90";
+ } else if (kind == adm1032) {
+ name = "adm1032";
+ } else if (kind == lm99) {
+ name = "lm99";
+ } else if (kind == lm86) {
+ name = "lm86";
+ } else if (kind == max6657) {
+ name = "max6657";
+ } else if (kind == adt7461) {
+ name = "adt7461";
+ }
+
+ /* We can fill in the remaining client fields */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ data->kind = kind;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the LM90 chip */
+ lm90_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit_hyst);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static void lm90_init_client(struct i2c_client *client)
+{
+ u8 config;
+
+ /*
+ * Start the conversions.
+ */
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE,
+ 5); /* 2 Hz */
+ config = i2c_smbus_read_byte_data(client, LM90_REG_R_CONFIG1);
+ if (config & 0x40)
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
+ config & 0xBF); /* run */
+}
+
+static int lm90_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static struct lm90_data *lm90_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm90_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+ u8 oldh, newh;
+
+ dev_dbg(&client->dev, "Updating lm90 data.\n");
+ data->temp_input1 = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_LOCAL_TEMP);
+ data->temp_high1 = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_LOCAL_HIGH);
+ data->temp_low1 = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_LOCAL_LOW);
+ data->temp_crit1 = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_LOCAL_CRIT);
+ data->temp_crit2 = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_CRIT);
+ data->temp_hyst = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_TCRIT_HYST);
+
+ /*
+ * There is a trick here. We have to read two registers to
+ * have the remote sensor temperature, but we have to beware
+ * a conversion could occur inbetween the readings. The
+ * datasheet says we should either use the one-shot
+ * conversion register, which we don't want to do (disables
+ * hardware monitoring) or monitor the busy bit, which is
+ * impossible (we can't read the values and monitor that bit
+ * at the exact same time). So the solution used here is to
+ * read the high byte once, then the low byte, then the high
+ * byte again. If the new high byte matches the old one,
+ * then we have a valid reading. Else we have to read the low
+ * byte again, and now we believe we have a correct reading.
+ */
+ oldh = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_TEMPH);
+ data->temp_input2 = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_TEMPL);
+ newh = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_TEMPH);
+ if (newh != oldh) {
+ data->temp_input2 = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_TEMPL);
+#ifdef DEBUG
+ oldh = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_TEMPH);
+ /* oldh is actually newer */
+ if (newh != oldh)
+ dev_warn(&client->dev, "Remote temperature may be "
+ "wrong.\n");
+#endif
+ }
+ data->temp_input2 |= (newh << 8);
+
+ data->temp_high2 = (i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_HIGHH) << 8) +
+ i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_HIGHL);
+ data->temp_low2 = (i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_LOWH) << 8) +
+ i2c_smbus_read_byte_data(client,
+ LM90_REG_R_REMOTE_LOWL);
+ data->alarms = i2c_smbus_read_byte_data(client,
+ LM90_REG_R_STATUS);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_lm90_init(void)
+{
+ return i2c_add_driver(&lm90_driver);
+}
+
+static void __exit sensors_lm90_exit(void)
+{
+ i2c_del_driver(&lm90_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM90/ADM1032 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm90_init);
+module_exit(sensors_lm90_exit);
diff --git a/drivers/i2c/chips/lm92.c b/drivers/i2c/chips/lm92.c
new file mode 100644
index 0000000..fe6e83d
--- /dev/null
+++ b/drivers/i2c/chips/lm92.c
@@ -0,0 +1,429 @@
+/*
+ * lm92 - Hardware monitoring driver
+ * Copyright (C) 2005 Jean Delvare <khali@linux-fr.org>
+ *
+ * Based on the lm90 driver, with some ideas taken from the lm_sensors
+ * lm92 driver as well.
+ *
+ * The LM92 is a sensor chip made by National Semiconductor. It reports
+ * its own temperature with a 0.0625 deg resolution and a 0.33 deg
+ * accuracy. Complete datasheet can be obtained from National's website
+ * at:
+ * http://www.national.com/pf/LM/LM92.html
+ *
+ * This driver also supports the MAX6635 sensor chip made by Maxim.
+ * This chip is compatible with the LM92, but has a lesser accuracy
+ * (1.0 deg). Complete datasheet can be obtained from Maxim's website
+ * at:
+ * http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3074
+ *
+ * Since the LM92 was the first chipset supported by this driver, most
+ * comments will refer to this chipset, but are actually general and
+ * concern all supported chipsets, unless mentioned otherwise.
+ *
+ * Support could easily be added for the National Semiconductor LM76
+ * and Maxim MAX6633 and MAX6634 chips, which are mostly compatible
+ * with the LM92.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+
+/* The LM92 and MAX6635 have 2 two-state pins for address selection,
+ resulting in 4 possible addresses. */
+static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
+ I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(lm92);
+
+/* The LM92 registers */
+#define LM92_REG_CONFIG 0x01 /* 8-bit, RW */
+#define LM92_REG_TEMP 0x00 /* 16-bit, RO */
+#define LM92_REG_TEMP_HYST 0x02 /* 16-bit, RW */
+#define LM92_REG_TEMP_CRIT 0x03 /* 16-bit, RW */
+#define LM92_REG_TEMP_LOW 0x04 /* 16-bit, RW */
+#define LM92_REG_TEMP_HIGH 0x05 /* 16-bit, RW */
+#define LM92_REG_MAN_ID 0x07 /* 16-bit, RO, LM92 only */
+
+/* The LM92 uses signed 13-bit values with LSB = 0.0625 degree Celsius,
+ left-justified in 16-bit registers. No rounding is done, with such
+ a resolution it's just not worth it. Note that the MAX6635 doesn't
+ make use of the 4 lower bits for limits (i.e. effective resolution
+ for limits is 1 degree Celsius). */
+static inline int TEMP_FROM_REG(s16 reg)
+{
+ return reg / 8 * 625 / 10;
+}
+
+static inline s16 TEMP_TO_REG(int val)
+{
+ if (val <= -60000)
+ return -60000 * 10 / 625 * 8;
+ if (val >= 160000)
+ return 160000 * 10 / 625 * 8;
+ return val * 10 / 625 * 8;
+}
+
+/* Alarm flags are stored in the 3 LSB of the temperature register */
+static inline u8 ALARMS_FROM_REG(s16 reg)
+{
+ return reg & 0x0007;
+}
+
+/* Driver data (common to all clients) */
+static struct i2c_driver lm92_driver;
+
+/* Client data (each client gets its own) */
+struct lm92_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* registers values */
+ s16 temp1_input, temp1_crit, temp1_min, temp1_max, temp1_hyst;
+};
+
+
+/*
+ * Sysfs attributes and callback functions
+ */
+
+static struct lm92_data *lm92_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm92_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ)
+ || !data->valid) {
+ dev_dbg(&client->dev, "Updating lm92 data\n");
+ data->temp1_input = swab16(i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP));
+ data->temp1_hyst = swab16(i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_HYST));
+ data->temp1_crit = swab16(i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_CRIT));
+ data->temp1_min = swab16(i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_LOW));
+ data->temp1_max = swab16(i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_HIGH));
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+#define show_temp(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct lm92_data *data = lm92_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \
+}
+show_temp(temp1_input);
+show_temp(temp1_crit);
+show_temp(temp1_min);
+show_temp(temp1_max);
+
+#define set_temp(value, reg) \
+static ssize_t set_##value(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct lm92_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = TEMP_TO_REG(val); \
+ i2c_smbus_write_word_data(client, reg, swab16(data->value)); \
+ up(&data->update_lock); \
+ return count; \
+}
+set_temp(temp1_crit, LM92_REG_TEMP_CRIT);
+set_temp(temp1_min, LM92_REG_TEMP_LOW);
+set_temp(temp1_max, LM92_REG_TEMP_HIGH);
+
+static ssize_t show_temp1_crit_hyst(struct device *dev, char *buf)
+{
+ struct lm92_data *data = lm92_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_crit)
+ - TEMP_FROM_REG(data->temp1_hyst));
+}
+static ssize_t show_temp1_max_hyst(struct device *dev, char *buf)
+{
+ struct lm92_data *data = lm92_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_max)
+ - TEMP_FROM_REG(data->temp1_hyst));
+}
+static ssize_t show_temp1_min_hyst(struct device *dev, char *buf)
+{
+ struct lm92_data *data = lm92_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_min)
+ + TEMP_FROM_REG(data->temp1_hyst));
+}
+
+static ssize_t set_temp1_crit_hyst(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm92_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp1_hyst = TEMP_FROM_REG(data->temp1_crit) - val;
+ i2c_smbus_write_word_data(client, LM92_REG_TEMP_HYST,
+ swab16(TEMP_TO_REG(data->temp1_hyst)));
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct lm92_data *data = lm92_update_device(dev);
+ return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->temp1_input));
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1_input, NULL);
+static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp1_crit,
+ set_temp1_crit);
+static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp1_crit_hyst,
+ set_temp1_crit_hyst);
+static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp1_min,
+ set_temp1_min);
+static DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp1_min_hyst, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp1_max,
+ set_temp1_max);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp1_max_hyst, NULL);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+
+/*
+ * Detection and registration
+ */
+
+static void lm92_init_client(struct i2c_client *client)
+{
+ u8 config;
+
+ /* Start the conversions if needed */
+ config = i2c_smbus_read_byte_data(client, LM92_REG_CONFIG);
+ if (config & 0x01)
+ i2c_smbus_write_byte_data(client, LM92_REG_CONFIG,
+ config & 0xFE);
+}
+
+/* The MAX6635 has no identification register, so we have to use tricks
+ to identify it reliably. This is somewhat slow.
+ Note that we do NOT rely on the 2 MSB of the configuration register
+ always reading 0, as suggested by the datasheet, because it was once
+ reported not to be true. */
+static int max6635_check(struct i2c_client *client)
+{
+ u16 temp_low, temp_high, temp_hyst, temp_crit;
+ u8 conf;
+ int i;
+
+ /* No manufacturer ID register, so a read from this address will
+ always return the last read value. */
+ temp_low = i2c_smbus_read_word_data(client, LM92_REG_TEMP_LOW);
+ if (i2c_smbus_read_word_data(client, LM92_REG_MAN_ID) != temp_low)
+ return 0;
+ temp_high = i2c_smbus_read_word_data(client, LM92_REG_TEMP_HIGH);
+ if (i2c_smbus_read_word_data(client, LM92_REG_MAN_ID) != temp_high)
+ return 0;
+
+ /* Limits are stored as integer values (signed, 9-bit). */
+ if ((temp_low & 0x7f00) || (temp_high & 0x7f00))
+ return 0;
+ temp_hyst = i2c_smbus_read_word_data(client, LM92_REG_TEMP_HYST);
+ temp_crit = i2c_smbus_read_word_data(client, LM92_REG_TEMP_CRIT);
+ if ((temp_hyst & 0x7f00) || (temp_crit & 0x7f00))
+ return 0;
+
+ /* Registers addresses were found to cycle over 16-byte boundaries.
+ We don't test all registers with all offsets so as to save some
+ reads and time, but this should still be sufficient to dismiss
+ non-MAX6635 chips. */
+ conf = i2c_smbus_read_byte_data(client, LM92_REG_CONFIG);
+ for (i=16; i<96; i*=2) {
+ if (temp_hyst != i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_HYST + i - 16)
+ || temp_crit != i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_CRIT + i)
+ || temp_low != i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_LOW + i + 16)
+ || temp_high != i2c_smbus_read_word_data(client,
+ LM92_REG_TEMP_HIGH + i + 32)
+ || conf != i2c_smbus_read_byte_data(client,
+ LM92_REG_CONFIG + i))
+ return 0;
+ }
+
+ return 1;
+}
+
+/* The following function does more than just detection. If detection
+ succeeds, it also registers the new chip. */
+static int lm92_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct lm92_data *data;
+ int err = 0;
+ char *name;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
+ | I2C_FUNC_SMBUS_WORD_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct lm92_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct lm92_data));
+
+ /* Fill in enough client fields so that we can read from the chip,
+ which is required for identication */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &lm92_driver;
+ new_client->flags = 0;
+
+ /* A negative kind means that the driver was loaded with no force
+ parameter (default), so we must identify the chip. */
+ if (kind < 0) {
+ u8 config = i2c_smbus_read_byte_data(new_client,
+ LM92_REG_CONFIG);
+ u16 man_id = i2c_smbus_read_word_data(new_client,
+ LM92_REG_MAN_ID);
+
+ if ((config & 0xe0) == 0x00
+ && man_id == 0x0180) {
+ pr_info("lm92: Found National Semiconductor LM92 chip\n");
+ kind = lm92;
+ } else
+ if (max6635_check(new_client)) {
+ pr_info("lm92: Found Maxim MAX6635 chip\n");
+ kind = lm92; /* No separate prefix */
+ }
+ else
+ goto exit_free;
+ } else
+ if (kind == 0) /* Default to an LM92 if forced */
+ kind = lm92;
+
+ /* Give it the proper name */
+ if (kind == lm92) {
+ name = "lm92";
+ } else { /* Supposedly cannot happen */
+ dev_dbg(&new_client->dev, "Kind out of range?\n");
+ goto exit_free;
+ }
+
+ /* Fill in the remaining client fields */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the i2c subsystem a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the chipset */
+ lm92_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int lm92_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, lm92_detect);
+}
+
+static int lm92_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+
+/*
+ * Module and driver stuff
+ */
+
+static struct i2c_driver lm92_driver = {
+ .owner = THIS_MODULE,
+ .name = "lm92",
+ .id = I2C_DRIVERID_LM92,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = lm92_attach_adapter,
+ .detach_client = lm92_detach_client,
+};
+
+static int __init sensors_lm92_init(void)
+{
+ return i2c_add_driver(&lm92_driver);
+}
+
+static void __exit sensors_lm92_exit(void)
+{
+ i2c_del_driver(&lm92_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM92/MAX6635 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm92_init);
+module_exit(sensors_lm92_exit);
diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c
new file mode 100644
index 0000000..e771566
--- /dev/null
+++ b/drivers/i2c/chips/m41t00.c
@@ -0,0 +1,246 @@
+/*
+ * drivers/i2c/chips/m41t00.c
+ *
+ * I2C client/driver for the ST M41T00 Real-Time Clock chip.
+ *
+ * Author: Mark A. Greer <mgreer@mvista.com>
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+/*
+ * This i2c client/driver wedges between the drivers/char/genrtc.c RTC
+ * interface and the SMBus interface of the i2c subsystem.
+ * It would be more efficient to use i2c msgs/i2c_transfer directly but, as
+ * recommened in .../Documentation/i2c/writing-clients section
+ * "Sending and receiving", using SMBus level communication is preferred.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+
+#include <asm/time.h>
+#include <asm/rtc.h>
+
+#define M41T00_DRV_NAME "m41t00"
+
+static DECLARE_MUTEX(m41t00_mutex);
+
+static struct i2c_driver m41t00_driver;
+static struct i2c_client *save_client;
+
+static unsigned short ignore[] = { I2C_CLIENT_END };
+static unsigned short normal_addr[] = { 0x68, I2C_CLIENT_END };
+
+static struct i2c_client_address_data addr_data = {
+ .normal_i2c = normal_addr,
+ .normal_i2c_range = ignore,
+ .probe = ignore,
+ .probe_range = ignore,
+ .ignore = ignore,
+ .ignore_range = ignore,
+ .force = ignore,
+};
+
+ulong
+m41t00_get_rtc_time(void)
+{
+ s32 sec, min, hour, day, mon, year;
+ s32 sec1, min1, hour1, day1, mon1, year1;
+ ulong limit = 10;
+
+ sec = min = hour = day = mon = year = 0;
+ sec1 = min1 = hour1 = day1 = mon1 = year1 = 0;
+
+ down(&m41t00_mutex);
+ do {
+ if (((sec = i2c_smbus_read_byte_data(save_client, 0)) >= 0)
+ && ((min = i2c_smbus_read_byte_data(save_client, 1))
+ >= 0)
+ && ((hour = i2c_smbus_read_byte_data(save_client, 2))
+ >= 0)
+ && ((day = i2c_smbus_read_byte_data(save_client, 4))
+ >= 0)
+ && ((mon = i2c_smbus_read_byte_data(save_client, 5))
+ >= 0)
+ && ((year = i2c_smbus_read_byte_data(save_client, 6))
+ >= 0)
+ && ((sec == sec1) && (min == min1) && (hour == hour1)
+ && (day == day1) && (mon == mon1)
+ && (year == year1)))
+
+ break;
+
+ sec1 = sec;
+ min1 = min;
+ hour1 = hour;
+ day1 = day;
+ mon1 = mon;
+ year1 = year;
+ } while (--limit > 0);
+ up(&m41t00_mutex);
+
+ if (limit == 0) {
+ dev_warn(&save_client->dev,
+ "m41t00: can't read rtc chip\n");
+ sec = min = hour = day = mon = year = 0;
+ }
+
+ sec &= 0x7f;
+ min &= 0x7f;
+ hour &= 0x3f;
+ day &= 0x3f;
+ mon &= 0x1f;
+ year &= 0xff;
+
+ BCD_TO_BIN(sec);
+ BCD_TO_BIN(min);
+ BCD_TO_BIN(hour);
+ BCD_TO_BIN(day);
+ BCD_TO_BIN(mon);
+ BCD_TO_BIN(year);
+
+ year += 1900;
+ if (year < 1970)
+ year += 100;
+
+ return mktime(year, mon, day, hour, min, sec);
+}
+
+static void
+m41t00_set_tlet(ulong arg)
+{
+ struct rtc_time tm;
+ ulong nowtime = *(ulong *)arg;
+
+ to_tm(nowtime, &tm);
+ tm.tm_year = (tm.tm_year - 1900) % 100;
+
+ BIN_TO_BCD(tm.tm_sec);
+ BIN_TO_BCD(tm.tm_min);
+ BIN_TO_BCD(tm.tm_hour);
+ BIN_TO_BCD(tm.tm_mon);
+ BIN_TO_BCD(tm.tm_mday);
+ BIN_TO_BCD(tm.tm_year);
+
+ down(&m41t00_mutex);
+ if ((i2c_smbus_write_byte_data(save_client, 0, tm.tm_sec & 0x7f) < 0)
+ || (i2c_smbus_write_byte_data(save_client, 1, tm.tm_min & 0x7f)
+ < 0)
+ || (i2c_smbus_write_byte_data(save_client, 2, tm.tm_hour & 0x7f)
+ < 0)
+ || (i2c_smbus_write_byte_data(save_client, 4, tm.tm_mday & 0x7f)
+ < 0)
+ || (i2c_smbus_write_byte_data(save_client, 5, tm.tm_mon & 0x7f)
+ < 0)
+ || (i2c_smbus_write_byte_data(save_client, 6, tm.tm_year & 0x7f)
+ < 0))
+
+ dev_warn(&save_client->dev,"m41t00: can't write to rtc chip\n");
+
+ up(&m41t00_mutex);
+ return;
+}
+
+ulong new_time;
+
+DECLARE_TASKLET_DISABLED(m41t00_tasklet, m41t00_set_tlet, (ulong)&new_time);
+
+int
+m41t00_set_rtc_time(ulong nowtime)
+{
+ new_time = nowtime;
+
+ if (in_interrupt())
+ tasklet_schedule(&m41t00_tasklet);
+ else
+ m41t00_set_tlet((ulong)&new_time);
+
+ return 0;
+}
+
+/*
+ *****************************************************************************
+ *
+ * Driver Interface
+ *
+ *****************************************************************************
+ */
+static int
+m41t00_probe(struct i2c_adapter *adap, int addr, int kind)
+{
+ struct i2c_client *client;
+ int rc;
+
+ client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (!client)
+ return -ENOMEM;
+
+ memset(client, 0, sizeof(struct i2c_client));
+ strncpy(client->name, M41T00_DRV_NAME, I2C_NAME_SIZE);
+ client->flags = I2C_DF_NOTIFY;
+ client->addr = addr;
+ client->adapter = adap;
+ client->driver = &m41t00_driver;
+
+ if ((rc = i2c_attach_client(client)) != 0) {
+ kfree(client);
+ return rc;
+ }
+
+ save_client = client;
+ return 0;
+}
+
+static int
+m41t00_attach(struct i2c_adapter *adap)
+{
+ return i2c_probe(adap, &addr_data, m41t00_probe);
+}
+
+static int
+m41t00_detach(struct i2c_client *client)
+{
+ int rc;
+
+ if ((rc = i2c_detach_client(client)) == 0) {
+ kfree(i2c_get_clientdata(client));
+ tasklet_kill(&m41t00_tasklet);
+ }
+ return rc;
+}
+
+static struct i2c_driver m41t00_driver = {
+ .owner = THIS_MODULE,
+ .name = M41T00_DRV_NAME,
+ .id = I2C_DRIVERID_STM41T00,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = m41t00_attach,
+ .detach_client = m41t00_detach,
+};
+
+static int __init
+m41t00_init(void)
+{
+ return i2c_add_driver(&m41t00_driver);
+}
+
+static void __exit
+m41t00_exit(void)
+{
+ i2c_del_driver(&m41t00_driver);
+ return;
+}
+
+module_init(m41t00_init);
+module_exit(m41t00_exit);
+
+MODULE_AUTHOR("Mark A. Greer <mgreer@mvista.com>");
+MODULE_DESCRIPTION("ST Microelectronics M41T00 RTC I2C Client Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/chips/max1619.c b/drivers/i2c/chips/max1619.c
new file mode 100644
index 0000000..5afa961
--- /dev/null
+++ b/drivers/i2c/chips/max1619.c
@@ -0,0 +1,373 @@
+/*
+ * max1619.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2003-2004 Alexey Fisher <fishor@mail.ru>
+ * Jean Delvare <khali@linux-fr.org>
+ *
+ * Based on the lm90 driver. The MAX1619 is a sensor chip made by Maxim.
+ * It reports up to two temperatures (its own plus up to
+ * one external one). Complete datasheet can be
+ * obtained from Maxim's website at:
+ * http://pdfserv.maxim-ic.com/en/ds/MAX1619.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+
+static unsigned short normal_i2c[] = { 0x18, 0x19, 0x1a,
+ 0x29, 0x2a, 0x2b,
+ 0x4c, 0x4d, 0x4e,
+ I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_1(max1619);
+
+/*
+ * The MAX1619 registers
+ */
+
+#define MAX1619_REG_R_MAN_ID 0xFE
+#define MAX1619_REG_R_CHIP_ID 0xFF
+#define MAX1619_REG_R_CONFIG 0x03
+#define MAX1619_REG_W_CONFIG 0x09
+#define MAX1619_REG_R_CONVRATE 0x04
+#define MAX1619_REG_W_CONVRATE 0x0A
+#define MAX1619_REG_R_STATUS 0x02
+#define MAX1619_REG_R_LOCAL_TEMP 0x00
+#define MAX1619_REG_R_REMOTE_TEMP 0x01
+#define MAX1619_REG_R_REMOTE_HIGH 0x07
+#define MAX1619_REG_W_REMOTE_HIGH 0x0D
+#define MAX1619_REG_R_REMOTE_LOW 0x08
+#define MAX1619_REG_W_REMOTE_LOW 0x0E
+#define MAX1619_REG_R_REMOTE_CRIT 0x10
+#define MAX1619_REG_W_REMOTE_CRIT 0x12
+#define MAX1619_REG_R_TCRIT_HYST 0x11
+#define MAX1619_REG_W_TCRIT_HYST 0x13
+
+/*
+ * Conversions and various macros
+ */
+
+#define TEMP_FROM_REG(val) ((val & 0x80 ? val-0x100 : val) * 1000)
+#define TEMP_TO_REG(val) ((val < 0 ? val+0x100*1000 : val) / 1000)
+
+/*
+ * Functions declaration
+ */
+
+static int max1619_attach_adapter(struct i2c_adapter *adapter);
+static int max1619_detect(struct i2c_adapter *adapter, int address,
+ int kind);
+static void max1619_init_client(struct i2c_client *client);
+static int max1619_detach_client(struct i2c_client *client);
+static struct max1619_data *max1619_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver max1619_driver = {
+ .owner = THIS_MODULE,
+ .name = "max1619",
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = max1619_attach_adapter,
+ .detach_client = max1619_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct max1619_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* registers values */
+ u8 temp_input1; /* local */
+ u8 temp_input2, temp_low2, temp_high2; /* remote */
+ u8 temp_crit2;
+ u8 temp_hyst2;
+ u8 alarms;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show_temp(value) \
+static ssize_t show_##value(struct device *dev, char *buf) \
+{ \
+ struct max1619_data *data = max1619_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \
+}
+show_temp(temp_input1);
+show_temp(temp_input2);
+show_temp(temp_low2);
+show_temp(temp_high2);
+show_temp(temp_crit2);
+show_temp(temp_hyst2);
+
+#define set_temp2(value, reg) \
+static ssize_t set_##value(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct max1619_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->value = TEMP_TO_REG(val); \
+ i2c_smbus_write_byte_data(client, reg, data->value); \
+ up(&data->update_lock); \
+ return count; \
+}
+
+set_temp2(temp_low2, MAX1619_REG_W_REMOTE_LOW);
+set_temp2(temp_high2, MAX1619_REG_W_REMOTE_HIGH);
+set_temp2(temp_crit2, MAX1619_REG_W_REMOTE_CRIT);
+set_temp2(temp_hyst2, MAX1619_REG_W_TCRIT_HYST);
+
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct max1619_data *data = max1619_update_device(dev);
+ return sprintf(buf, "%d\n", data->alarms);
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL);
+static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_low2,
+ set_temp_low2);
+static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2,
+ set_temp_high2);
+static DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit2,
+ set_temp_crit2);
+static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst2,
+ set_temp_hyst2);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+/*
+ * Real code
+ */
+
+static int max1619_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, max1619_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int max1619_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct max1619_data *data;
+ int err = 0;
+ const char *name = "";
+ u8 reg_config=0, reg_convrate=0, reg_status=0;
+ u8 man_id, chip_id;
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct max1619_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct max1619_data));
+
+ /* The common I2C client data is placed right before the
+ MAX1619-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &max1619_driver;
+ new_client->flags = 0;
+
+ /*
+ * Now we do the remaining detection. A negative kind means that
+ * the driver was loaded with no force parameter (default), so we
+ * must both detect and identify the chip. A zero kind means that
+ * the driver was loaded with the force parameter, the detection
+ * step shall be skipped. A positive kind means that the driver
+ * was loaded with the force parameter and a given kind of chip is
+ * requested, so both the detection and the identification steps
+ * are skipped.
+ */
+ if (kind < 0) { /* detection */
+ reg_config = i2c_smbus_read_byte_data(new_client,
+ MAX1619_REG_R_CONFIG);
+ reg_convrate = i2c_smbus_read_byte_data(new_client,
+ MAX1619_REG_R_CONVRATE);
+ reg_status = i2c_smbus_read_byte_data(new_client,
+ MAX1619_REG_R_STATUS);
+ if ((reg_config & 0x03) != 0x00
+ || reg_convrate > 0x07 || (reg_status & 0x61 ) !=0x00) {
+ dev_dbg(&adapter->dev,
+ "MAX1619 detection failed at 0x%02x.\n",
+ address);
+ goto exit_free;
+ }
+ }
+
+ if (kind <= 0) { /* identification */
+
+ man_id = i2c_smbus_read_byte_data(new_client,
+ MAX1619_REG_R_MAN_ID);
+ chip_id = i2c_smbus_read_byte_data(new_client,
+ MAX1619_REG_R_CHIP_ID);
+
+ if ((man_id == 0x4D) && (chip_id == 0x04)){
+ kind = max1619;
+ }
+ }
+
+ if (kind <= 0) { /* identification failed */
+ dev_info(&adapter->dev,
+ "Unsupported chip (man_id=0x%02X, "
+ "chip_id=0x%02X).\n", man_id, chip_id);
+ goto exit_free;
+ }
+
+
+ if (kind == max1619){
+ name = "max1619";
+ }
+
+ /* We can fill in the remaining client fields */
+ strlcpy(new_client->name, name, I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the MAX1619 chip */
+ max1619_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit_hyst);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static void max1619_init_client(struct i2c_client *client)
+{
+ u8 config;
+
+ /*
+ * Start the conversions.
+ */
+ i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONVRATE,
+ 5); /* 2 Hz */
+ config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
+ if (config & 0x40)
+ i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONFIG,
+ config & 0xBF); /* run */
+}
+
+static int max1619_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static struct max1619_data *max1619_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct max1619_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+ dev_dbg(&client->dev, "Updating max1619 data.\n");
+ data->temp_input1 = i2c_smbus_read_byte_data(client,
+ MAX1619_REG_R_LOCAL_TEMP);
+ data->temp_input2 = i2c_smbus_read_byte_data(client,
+ MAX1619_REG_R_REMOTE_TEMP);
+ data->temp_high2 = i2c_smbus_read_byte_data(client,
+ MAX1619_REG_R_REMOTE_HIGH);
+ data->temp_low2 = i2c_smbus_read_byte_data(client,
+ MAX1619_REG_R_REMOTE_LOW);
+ data->temp_crit2 = i2c_smbus_read_byte_data(client,
+ MAX1619_REG_R_REMOTE_CRIT);
+ data->temp_hyst2 = i2c_smbus_read_byte_data(client,
+ MAX1619_REG_R_TCRIT_HYST);
+ data->alarms = i2c_smbus_read_byte_data(client,
+ MAX1619_REG_R_STATUS);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_max1619_init(void)
+{
+ return i2c_add_driver(&max1619_driver);
+}
+
+static void __exit sensors_max1619_exit(void)
+{
+ i2c_del_driver(&max1619_driver);
+}
+
+MODULE_AUTHOR("Alexey Fisher <fishor@mail.ru> and"
+ "Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("MAX1619 sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_max1619_init);
+module_exit(sensors_max1619_exit);
diff --git a/drivers/i2c/chips/pc87360.c b/drivers/i2c/chips/pc87360.c
new file mode 100644
index 0000000..6d94c36
--- /dev/null
+++ b/drivers/i2c/chips/pc87360.c
@@ -0,0 +1,1349 @@
+/*
+ * pc87360.c - Part of lm_sensors, Linux kernel modules
+ * for hardware monitoring
+ * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+ *
+ * Copied from smsc47m1.c:
+ * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Supports the following chips:
+ *
+ * Chip #vin #fan #pwm #temp devid
+ * PC87360 - 2 2 - 0xE1
+ * PC87363 - 2 2 - 0xE8
+ * PC87364 - 3 3 - 0xE4
+ * PC87365 11 3 3 2 0xE5
+ * PC87366 11 3 3 3-4 0xE9
+ *
+ * This driver assumes that no more than one chip is present, and one of
+ * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+#include <asm/io.h>
+
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+static unsigned int normal_isa[] = { 0, I2C_CLIENT_ISA_END };
+static struct i2c_force_data forces[] = {{ NULL }};
+static u8 devid;
+static unsigned int extra_isa[3];
+static u8 confreg[4];
+
+enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
+static struct i2c_address_data addr_data = {
+ .normal_i2c = normal_i2c,
+ .normal_isa = normal_isa,
+ .forces = forces,
+};
+
+static int init = 1;
+module_param(init, int, 0);
+MODULE_PARM_DESC(init,
+ "Chip initialization level:\n"
+ " 0: None\n"
+ "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
+ " 2: Forcibly enable all voltage and temperature channels, except in9\n"
+ " 3: Forcibly enable all voltage and temperature channels, including in9");
+
+/*
+ * Super-I/O registers and operations
+ */
+
+#define DEV 0x07 /* Register: Logical device select */
+#define DEVID 0x20 /* Register: Device ID */
+#define ACT 0x30 /* Register: Device activation */
+#define BASE 0x60 /* Register: Base address */
+
+#define FSCM 0x09 /* Logical device: fans */
+#define VLM 0x0d /* Logical device: voltages */
+#define TMS 0x0e /* Logical device: temperatures */
+static const u8 logdev[3] = { FSCM, VLM, TMS };
+
+#define LD_FAN 0
+#define LD_IN 1
+#define LD_TEMP 2
+
+static inline void superio_outb(int sioaddr, int reg, int val)
+{
+ outb(reg, sioaddr);
+ outb(val, sioaddr+1);
+}
+
+static inline int superio_inb(int sioaddr, int reg)
+{
+ outb(reg, sioaddr);
+ return inb(sioaddr+1);
+}
+
+static inline void superio_exit(int sioaddr)
+{
+ outb(0x02, sioaddr);
+ outb(0x02, sioaddr+1);
+}
+
+/*
+ * Logical devices
+ */
+
+#define PC87360_EXTENT 0x10
+#define PC87365_REG_BANK 0x09
+#define NO_BANK 0xff
+
+/*
+ * Fan registers and conversions
+ */
+
+/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
+#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
+#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
+#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
+#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
+#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
+
+#define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
+ 480000 / ((val)*(div)))
+#define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
+ 480000 / ((val)*(div)))
+#define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
+#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
+
+#define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
+#define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
+#define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
+
+#define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
+static inline u8 PWM_TO_REG(int val, int inv)
+{
+ if (inv)
+ val = 255 - val;
+ if (val < 0)
+ return 0;
+ if (val > 255)
+ return 255;
+ return val;
+}
+
+/*
+ * Voltage registers and conversions
+ */
+
+#define PC87365_REG_IN_CONVRATE 0x07
+#define PC87365_REG_IN_CONFIG 0x08
+#define PC87365_REG_IN 0x0B
+#define PC87365_REG_IN_MIN 0x0D
+#define PC87365_REG_IN_MAX 0x0C
+#define PC87365_REG_IN_STATUS 0x0A
+#define PC87365_REG_IN_ALARMS1 0x00
+#define PC87365_REG_IN_ALARMS2 0x01
+#define PC87365_REG_VID 0x06
+
+#define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
+#define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
+ (val)*256 >= (ref)*255 ? 255: \
+ ((val) * 256 + (ref)/2) / (ref))
+
+/*
+ * Temperature registers and conversions
+ */
+
+#define PC87365_REG_TEMP_CONFIG 0x08
+#define PC87365_REG_TEMP 0x0B
+#define PC87365_REG_TEMP_MIN 0x0D
+#define PC87365_REG_TEMP_MAX 0x0C
+#define PC87365_REG_TEMP_CRIT 0x0E
+#define PC87365_REG_TEMP_STATUS 0x0A
+#define PC87365_REG_TEMP_ALARMS 0x00
+
+#define TEMP_FROM_REG(val) ((val) * 1000)
+#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
+ (val) > 127000 ? 127 : \
+ (val) < 0 ? ((val) - 500) / 1000 : \
+ ((val) + 500) / 1000)
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct pc87360_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ int address[3];
+
+ u8 fannr, innr, tempnr;
+
+ u8 fan[3]; /* Register value */
+ u8 fan_min[3]; /* Register value */
+ u8 fan_status[3]; /* Register value */
+ u8 pwm[3]; /* Register value */
+ u16 fan_conf; /* Configuration register values, combined */
+
+ u16 in_vref; /* 1 mV/bit */
+ u8 in[14]; /* Register value */
+ u8 in_min[14]; /* Register value */
+ u8 in_max[14]; /* Register value */
+ u8 in_crit[3]; /* Register value */
+ u8 in_status[14]; /* Register value */
+ u16 in_alarms; /* Register values, combined, masked */
+ u8 vid_conf; /* Configuration register value */
+ u8 vrm;
+ u8 vid; /* Register value */
+
+ s8 temp[3]; /* Register value */
+ s8 temp_min[3]; /* Register value */
+ s8 temp_max[3]; /* Register value */
+ s8 temp_crit[3]; /* Register value */
+ u8 temp_status[3]; /* Register value */
+ u8 temp_alarms; /* Register value, masked */
+};
+
+/*
+ * Functions declaration
+ */
+
+static int pc87360_attach_adapter(struct i2c_adapter *adapter);
+static int pc87360_detect(struct i2c_adapter *adapter, int address, int kind);
+static int pc87360_detach_client(struct i2c_client *client);
+
+static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
+ u8 reg);
+static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
+ u8 reg, u8 value);
+static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
+static struct pc87360_data *pc87360_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver pc87360_driver = {
+ .owner = THIS_MODULE,
+ .name = "pc87360",
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = pc87360_attach_adapter,
+ .detach_client = pc87360_detach_client,
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pc87360_data *data = i2c_get_clientdata(client);
+ long fan_min = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[nr]));
+
+ /* If it wouldn't fit, change clock divisor */
+ while (fan_min > 255
+ && (data->fan_status[nr] & 0x60) != 0x60) {
+ fan_min >>= 1;
+ data->fan[nr] >>= 1;
+ data->fan_status[nr] += 0x20;
+ }
+ data->fan_min[nr] = fan_min > 255 ? 255 : fan_min;
+ pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(nr),
+ data->fan_min[nr]);
+
+ /* Write new divider, preserve alarm bits */
+ pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(nr),
+ data->fan_status[nr] & 0xF9);
+ up(&data->update_lock);
+
+ return count;
+}
+
+#define show_and_set_fan(offset) \
+static ssize_t show_fan##offset##_input(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[offset-1], \
+ FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
+} \
+static ssize_t show_fan##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[offset-1], \
+ FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
+} \
+static ssize_t show_fan##offset##_div(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", \
+ FAN_DIV_FROM_REG(data->fan_status[offset-1])); \
+} \
+static ssize_t show_fan##offset##_status(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", \
+ FAN_STATUS_FROM_REG(data->fan_status[offset-1])); \
+} \
+static ssize_t set_fan##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset-1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
+ show_fan##offset##_input, NULL); \
+static DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
+ show_fan##offset##_min, set_fan##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
+ show_fan##offset##_div, NULL); \
+static DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
+ show_fan##offset##_status, NULL);
+show_and_set_fan(1)
+show_and_set_fan(2)
+show_and_set_fan(3)
+
+#define show_and_set_pwm(offset) \
+static ssize_t show_pwm##offset(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", \
+ PWM_FROM_REG(data->pwm[offset-1], \
+ FAN_CONFIG_INVERT(data->fan_conf, \
+ offset-1))); \
+} \
+static ssize_t set_pwm##offset(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->pwm[offset-1] = PWM_TO_REG(val, \
+ FAN_CONFIG_INVERT(data->fan_conf, offset-1)); \
+ pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(offset-1), \
+ data->pwm[offset-1]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
+ show_pwm##offset, set_pwm##offset);
+show_and_set_pwm(1)
+show_and_set_pwm(2)
+show_and_set_pwm(3)
+
+#define show_and_set_in(offset) \
+static ssize_t show_in##offset##_input(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
+ data->in_vref)); \
+} \
+static ssize_t show_in##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
+ data->in_vref)); \
+} \
+static ssize_t show_in##offset##_max(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
+ data->in_vref)); \
+} \
+static ssize_t show_in##offset##_status(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", data->in_status[offset]); \
+} \
+static ssize_t set_in##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_min[offset] = IN_TO_REG(val, data->in_vref); \
+ pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MIN, \
+ data->in_min[offset]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static ssize_t set_in##offset##_max(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_max[offset] = IN_TO_REG(val, \
+ data->in_vref); \
+ pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MAX, \
+ data->in_max[offset]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+ show_in##offset##_input, NULL); \
+static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
+ show_in##offset##_max, set_in##offset##_max); \
+static DEVICE_ATTR(in##offset##_status, S_IRUGO, \
+ show_in##offset##_status, NULL);
+show_and_set_in(0)
+show_and_set_in(1)
+show_and_set_in(2)
+show_and_set_in(3)
+show_and_set_in(4)
+show_and_set_in(5)
+show_and_set_in(6)
+show_and_set_in(7)
+show_and_set_in(8)
+show_and_set_in(9)
+show_and_set_in(10)
+
+#define show_and_set_therm(offset) \
+static ssize_t show_temp##offset##_input(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset+7], \
+ data->in_vref)); \
+} \
+static ssize_t show_temp##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset+7], \
+ data->in_vref)); \
+} \
+static ssize_t show_temp##offset##_max(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset+7], \
+ data->in_vref)); \
+} \
+static ssize_t show_temp##offset##_crit(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[offset-4], \
+ data->in_vref)); \
+} \
+static ssize_t show_temp##offset##_status(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%u\n", data->in_status[offset+7]); \
+} \
+static ssize_t set_temp##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_min[offset+7] = IN_TO_REG(val, data->in_vref); \
+ pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MIN, \
+ data->in_min[offset+7]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static ssize_t set_temp##offset##_max(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_max[offset+7] = IN_TO_REG(val, data->in_vref); \
+ pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MAX, \
+ data->in_max[offset+7]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static ssize_t set_temp##offset##_crit(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_crit[offset-4] = IN_TO_REG(val, data->in_vref); \
+ pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_CRIT, \
+ data->in_crit[offset-4]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+ show_temp##offset##_input, NULL); \
+static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_min, set_temp##offset##_min); \
+static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_max, set_temp##offset##_max); \
+static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_crit, set_temp##offset##_crit); \
+static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
+ show_temp##offset##_status, NULL);
+show_and_set_therm(4)
+show_and_set_therm(5)
+show_and_set_therm(6)
+
+static ssize_t show_vid(struct device *dev, char *buf)
+{
+ struct pc87360_data *data = pc87360_update_device(dev);
+ return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+static ssize_t show_vrm(struct device *dev, char *buf)
+{
+ struct pc87360_data *data = pc87360_update_device(dev);
+ return sprintf(buf, "%u\n", data->vrm);
+}
+static ssize_t set_vrm(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pc87360_data *data = i2c_get_clientdata(client);
+ data->vrm = simple_strtoul(buf, NULL, 10);
+ return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+static ssize_t show_in_alarms(struct device *dev, char *buf)
+{
+ struct pc87360_data *data = pc87360_update_device(dev);
+ return sprintf(buf, "%u\n", data->in_alarms);
+}
+static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
+
+#define show_and_set_temp(offset) \
+static ssize_t show_temp##offset##_input(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
+} \
+static ssize_t show_temp##offset##_min(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
+} \
+static ssize_t show_temp##offset##_max(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
+}\
+static ssize_t show_temp##offset##_crit(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[offset-1])); \
+}\
+static ssize_t show_temp##offset##_status(struct device *dev, char *buf) \
+{ \
+ struct pc87360_data *data = pc87360_update_device(dev); \
+ return sprintf(buf, "%d\n", data->temp_status[offset-1]); \
+}\
+static ssize_t set_temp##offset##_min(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->temp_min[offset-1] = TEMP_TO_REG(val); \
+ pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MIN, \
+ data->temp_min[offset-1]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static ssize_t set_temp##offset##_max(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->temp_max[offset-1] = TEMP_TO_REG(val); \
+ pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MAX, \
+ data->temp_max[offset-1]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static ssize_t set_temp##offset##_crit(struct device *dev, const char *buf, \
+ size_t count) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct pc87360_data *data = i2c_get_clientdata(client); \
+ long val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->temp_crit[offset-1] = TEMP_TO_REG(val); \
+ pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_CRIT, \
+ data->temp_crit[offset-1]); \
+ up(&data->update_lock); \
+ return count; \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+ show_temp##offset##_input, NULL); \
+static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_min, set_temp##offset##_min); \
+static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_max, set_temp##offset##_max); \
+static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
+ show_temp##offset##_crit, set_temp##offset##_crit); \
+static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
+ show_temp##offset##_status, NULL);
+show_and_set_temp(1)
+show_and_set_temp(2)
+show_and_set_temp(3)
+
+static ssize_t show_temp_alarms(struct device *dev, char *buf)
+{
+ struct pc87360_data *data = pc87360_update_device(dev);
+ return sprintf(buf, "%u\n", data->temp_alarms);
+}
+static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
+
+/*
+ * Device detection, registration and update
+ */
+
+static int pc87360_attach_adapter(struct i2c_adapter *adapter)
+{
+ return i2c_detect(adapter, &addr_data, pc87360_detect);
+}
+
+static int pc87360_find(int sioaddr, u8 *devid, int *address)
+{
+ u16 val;
+ int i;
+ int nrdev; /* logical device count */
+
+ /* No superio_enter */
+
+ /* Identify device */
+ val = superio_inb(sioaddr, DEVID);
+ switch (val) {
+ case 0xE1: /* PC87360 */
+ case 0xE8: /* PC87363 */
+ case 0xE4: /* PC87364 */
+ nrdev = 1;
+ break;
+ case 0xE5: /* PC87365 */
+ case 0xE9: /* PC87366 */
+ nrdev = 3;
+ break;
+ default:
+ superio_exit(sioaddr);
+ return -ENODEV;
+ }
+ /* Remember the device id */
+ *devid = val;
+
+ for (i = 0; i < nrdev; i++) {
+ /* select logical device */
+ superio_outb(sioaddr, DEV, logdev[i]);
+
+ val = superio_inb(sioaddr, ACT);
+ if (!(val & 0x01)) {
+ printk(KERN_INFO "pc87360: Device 0x%02x not "
+ "activated\n", logdev[i]);
+ continue;
+ }
+
+ val = (superio_inb(sioaddr, BASE) << 8)
+ | superio_inb(sioaddr, BASE + 1);
+ if (!val) {
+ printk(KERN_INFO "pc87360: Base address not set for "
+ "device 0x%02x\n", logdev[i]);
+ continue;
+ }
+
+ address[i] = val;
+
+ if (i==0) { /* Fans */
+ confreg[0] = superio_inb(sioaddr, 0xF0);
+ confreg[1] = superio_inb(sioaddr, 0xF1);
+
+#ifdef DEBUG
+ printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
+ "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
+ (confreg[0]>>3)&1, (confreg[0]>>4)&1);
+ printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
+ "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
+ (confreg[0]>>6)&1, (confreg[0]>>7)&1);
+ printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
+ "ctrl=%d inv=%d\n", confreg[1]&1,
+ (confreg[1]>>1)&1, (confreg[1]>>2)&1);
+#endif
+ } else if (i==1) { /* Voltages */
+ /* Are we using thermistors? */
+ if (*devid == 0xE9) { /* PC87366 */
+ /* These registers are not logical-device
+ specific, just that we won't need them if
+ we don't use the VLM device */
+ confreg[2] = superio_inb(sioaddr, 0x2B);
+ confreg[3] = superio_inb(sioaddr, 0x25);
+
+ if (confreg[2] & 0x40) {
+ printk(KERN_INFO "pc87360: Using "
+ "thermistors for temperature "
+ "monitoring\n");
+ }
+ if (confreg[3] & 0xE0) {
+ printk(KERN_INFO "pc87360: VID "
+ "inputs routed (mode %u)\n",
+ confreg[3] >> 5);
+ }
+ }
+ }
+ }
+
+ superio_exit(sioaddr);
+ return 0;
+}
+
+/* We don't really care about the address.
+ Read from extra_isa instead. */
+int pc87360_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i;
+ struct i2c_client *new_client;
+ struct pc87360_data *data;
+ int err = 0;
+ const char *name = "pc87360";
+ int use_thermistors = 0;
+
+ if (!i2c_is_isa_adapter(adapter))
+ return -ENODEV;
+
+ if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
+ return -ENOMEM;
+ memset(data, 0x00, sizeof(struct pc87360_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ init_MUTEX(&data->lock);
+ new_client->adapter = adapter;
+ new_client->driver = &pc87360_driver;
+ new_client->flags = 0;
+
+ data->fannr = 2;
+ data->innr = 0;
+ data->tempnr = 0;
+
+ switch (devid) {
+ case 0xe8:
+ name = "pc87363";
+ break;
+ case 0xe4:
+ name = "pc87364";
+ data->fannr = 3;
+ break;
+ case 0xe5:
+ name = "pc87365";
+ data->fannr = extra_isa[0] ? 3 : 0;
+ data->innr = extra_isa[1] ? 11 : 0;
+ data->tempnr = extra_isa[2] ? 2 : 0;
+ break;
+ case 0xe9:
+ name = "pc87366";
+ data->fannr = extra_isa[0] ? 3 : 0;
+ data->innr = extra_isa[1] ? 14 : 0;
+ data->tempnr = extra_isa[2] ? 3 : 0;
+ break;
+ }
+
+ strcpy(new_client->name, name);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ for (i = 0; i < 3; i++) {
+ if (((data->address[i] = extra_isa[i]))
+ && !request_region(extra_isa[i], PC87360_EXTENT,
+ pc87360_driver.name)) {
+ dev_err(&new_client->dev, "Region 0x%x-0x%x already "
+ "in use!\n", extra_isa[i],
+ extra_isa[i]+PC87360_EXTENT-1);
+ for (i--; i >= 0; i--)
+ release_region(extra_isa[i], PC87360_EXTENT);
+ err = -EBUSY;
+ goto ERROR1;
+ }
+ }
+
+ /* Retrieve the fans configuration from Super-I/O space */
+ if (data->fannr)
+ data->fan_conf = confreg[0] | (confreg[1] << 8);
+
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR2;
+
+ /* Use the correct reference voltage
+ Unless both the VLM and the TMS logical devices agree to
+ use an external Vref, the internal one is used. */
+ if (data->innr) {
+ i = pc87360_read_value(data, LD_IN, NO_BANK,
+ PC87365_REG_IN_CONFIG);
+ if (data->tempnr) {
+ i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
+ PC87365_REG_TEMP_CONFIG);
+ }
+ data->in_vref = (i&0x02) ? 3025 : 2966;
+ dev_dbg(&new_client->dev, "Using %s reference voltage\n",
+ (i&0x02) ? "external" : "internal");
+
+ data->vid_conf = confreg[3];
+ data->vrm = 90;
+ }
+
+ /* Fan clock dividers may be needed before any data is read */
+ for (i = 0; i < data->fannr; i++) {
+ if (FAN_CONFIG_MONITOR(data->fan_conf, i))
+ data->fan_status[i] = pc87360_read_value(data,
+ LD_FAN, NO_BANK,
+ PC87360_REG_FAN_STATUS(i));
+ }
+
+ if (init > 0) {
+ if (devid == 0xe9 && data->address[1]) /* PC87366 */
+ use_thermistors = confreg[2] & 0x40;
+
+ pc87360_init_client(new_client, use_thermistors);
+ }
+
+ /* Register sysfs hooks */
+ if (data->innr) {
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in5_input);
+ device_create_file(&new_client->dev, &dev_attr_in6_input);
+ device_create_file(&new_client->dev, &dev_attr_in7_input);
+ device_create_file(&new_client->dev, &dev_attr_in8_input);
+ device_create_file(&new_client->dev, &dev_attr_in9_input);
+ device_create_file(&new_client->dev, &dev_attr_in10_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in5_min);
+ device_create_file(&new_client->dev, &dev_attr_in6_min);
+ device_create_file(&new_client->dev, &dev_attr_in7_min);
+ device_create_file(&new_client->dev, &dev_attr_in8_min);
+ device_create_file(&new_client->dev, &dev_attr_in9_min);
+ device_create_file(&new_client->dev, &dev_attr_in10_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ device_create_file(&new_client->dev, &dev_attr_in5_max);
+ device_create_file(&new_client->dev, &dev_attr_in6_max);
+ device_create_file(&new_client->dev, &dev_attr_in7_max);
+ device_create_file(&new_client->dev, &dev_attr_in8_max);
+ device_create_file(&new_client->dev, &dev_attr_in9_max);
+ device_create_file(&new_client->dev, &dev_attr_in10_max);
+ device_create_file(&new_client->dev, &dev_attr_in0_status);
+ device_create_file(&new_client->dev, &dev_attr_in1_status);
+ device_create_file(&new_client->dev, &dev_attr_in2_status);
+ device_create_file(&new_client->dev, &dev_attr_in3_status);
+ device_create_file(&new_client->dev, &dev_attr_in4_status);
+ device_create_file(&new_client->dev, &dev_attr_in5_status);
+ device_create_file(&new_client->dev, &dev_attr_in6_status);
+ device_create_file(&new_client->dev, &dev_attr_in7_status);
+ device_create_file(&new_client->dev, &dev_attr_in8_status);
+ device_create_file(&new_client->dev, &dev_attr_in9_status);
+ device_create_file(&new_client->dev, &dev_attr_in10_status);
+
+ device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
+ device_create_file(&new_client->dev, &dev_attr_vrm);
+ device_create_file(&new_client->dev, &dev_attr_alarms_in);
+ }
+
+ if (data->tempnr) {
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_min);
+ device_create_file(&new_client->dev, &dev_attr_temp2_min);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp1_status);
+ device_create_file(&new_client->dev, &dev_attr_temp2_status);
+
+ device_create_file(&new_client->dev, &dev_attr_alarms_temp);
+ }
+ if (data->tempnr == 3) {
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_min);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp3_status);
+ }
+ if (data->innr == 14) {
+ device_create_file(&new_client->dev, &dev_attr_temp4_input);
+ device_create_file(&new_client->dev, &dev_attr_temp5_input);
+ device_create_file(&new_client->dev, &dev_attr_temp6_input);
+ device_create_file(&new_client->dev, &dev_attr_temp4_min);
+ device_create_file(&new_client->dev, &dev_attr_temp5_min);
+ device_create_file(&new_client->dev, &dev_attr_temp6_min);
+ device_create_file(&new_client->dev, &dev_attr_temp4_max);
+ device_create_file(&new_client->dev, &dev_attr_temp5_max);
+ device_create_file(&new_client->dev, &dev_attr_temp6_max);
+ device_create_file(&new_client->dev, &dev_attr_temp4_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp5_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp6_crit);
+ device_create_file(&new_client->dev, &dev_attr_temp4_status);
+ device_create_file(&new_client->dev, &dev_attr_temp5_status);
+ device_create_file(&new_client->dev, &dev_attr_temp6_status);
+ }
+
+ if (data->fannr) {
+ if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
+ device_create_file(&new_client->dev,
+ &dev_attr_fan1_input);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan1_min);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan1_div);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan1_status);
+ }
+
+ if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
+ device_create_file(&new_client->dev,
+ &dev_attr_fan2_input);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan2_min);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan2_div);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan2_status);
+ }
+
+ if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
+ device_create_file(&new_client->dev, &dev_attr_pwm2);
+ }
+ if (data->fannr == 3) {
+ if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
+ device_create_file(&new_client->dev,
+ &dev_attr_fan3_input);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan3_min);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan3_div);
+ device_create_file(&new_client->dev,
+ &dev_attr_fan3_status);
+ }
+
+ if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
+ device_create_file(&new_client->dev, &dev_attr_pwm3);
+ }
+
+ return 0;
+
+ERROR2:
+ for (i = 0; i < 3; i++) {
+ if (data->address[i]) {
+ release_region(data->address[i], PC87360_EXTENT);
+ }
+ }
+ERROR1:
+ kfree(data);
+ return err;
+}
+
+static int pc87360_detach_client(struct i2c_client *client)
+{
+ struct pc87360_data *data = i2c_get_clientdata(client);
+ int i;
+
+ if ((i = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return i;
+ }
+
+ for (i = 0; i < 3; i++) {
+ if (data->address[i]) {
+ release_region(data->address[i], PC87360_EXTENT);
+ }
+ }
+ kfree(data);
+
+ return 0;
+}
+
+/* ldi is the logical device index
+ bank is for voltages and temperatures only */
+static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
+ u8 reg)
+{
+ int res;
+
+ down(&(data->lock));
+ if (bank != NO_BANK)
+ outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
+ res = inb_p(data->address[ldi] + reg);
+ up(&(data->lock));
+
+ return res;
+}
+
+static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
+ u8 reg, u8 value)
+{
+ down(&(data->lock));
+ if (bank != NO_BANK)
+ outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
+ outb_p(value, data->address[ldi] + reg);
+ up(&(data->lock));
+}
+
+static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
+{
+ struct pc87360_data *data = i2c_get_clientdata(client);
+ int i, nr;
+ const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
+ const u8 init_temp[3] = { 2, 2, 1 };
+ u8 reg;
+
+ if (init >= 2 && data->innr) {
+ reg = pc87360_read_value(data, LD_IN, NO_BANK,
+ PC87365_REG_IN_CONVRATE);
+ dev_info(&client->dev, "VLM conversion set to"
+ "1s period, 160us delay\n");
+ pc87360_write_value(data, LD_IN, NO_BANK,
+ PC87365_REG_IN_CONVRATE,
+ (reg & 0xC0) | 0x11);
+ }
+
+ nr = data->innr < 11 ? data->innr : 11;
+ for (i=0; i<nr; i++) {
+ if (init >= init_in[i]) {
+ /* Forcibly enable voltage channel */
+ reg = pc87360_read_value(data, LD_IN, i,
+ PC87365_REG_IN_STATUS);
+ if (!(reg & 0x01)) {
+ dev_dbg(&client->dev, "Forcibly "
+ "enabling in%d\n", i);
+ pc87360_write_value(data, LD_IN, i,
+ PC87365_REG_IN_STATUS,
+ (reg & 0x68) | 0x87);
+ }
+ }
+ }
+
+ /* We can't blindly trust the Super-I/O space configuration bit,
+ most BIOS won't set it properly */
+ for (i=11; i<data->innr; i++) {
+ reg = pc87360_read_value(data, LD_IN, i,
+ PC87365_REG_TEMP_STATUS);
+ use_thermistors = use_thermistors || (reg & 0x01);
+ }
+
+ i = use_thermistors ? 2 : 0;
+ for (; i<data->tempnr; i++) {
+ if (init >= init_temp[i]) {
+ /* Forcibly enable temperature channel */
+ reg = pc87360_read_value(data, LD_TEMP, i,
+ PC87365_REG_TEMP_STATUS);
+ if (!(reg & 0x01)) {
+ dev_dbg(&client->dev, "Forcibly "
+ "enabling temp%d\n", i+1);
+ pc87360_write_value(data, LD_TEMP, i,
+ PC87365_REG_TEMP_STATUS,
+ 0xCF);
+ }
+ }
+ }
+
+ if (use_thermistors) {
+ for (i=11; i<data->innr; i++) {
+ if (init >= init_in[i]) {
+ /* The pin may already be used by thermal
+ diodes */
+ reg = pc87360_read_value(data, LD_TEMP,
+ (i-11)/2, PC87365_REG_TEMP_STATUS);
+ if (reg & 0x01) {
+ dev_dbg(&client->dev, "Skipping "
+ "temp%d, pin already in use "
+ "by temp%d\n", i-7, (i-11)/2);
+ continue;
+ }
+
+ /* Forcibly enable thermistor channel */
+ reg = pc87360_read_value(data, LD_IN, i,
+ PC87365_REG_IN_STATUS);
+ if (!(reg & 0x01)) {
+ dev_dbg(&client->dev, "Forcibly "
+ "enabling temp%d\n", i-7);
+ pc87360_write_value(data, LD_IN, i,
+ PC87365_REG_TEMP_STATUS,
+ (reg & 0x60) | 0x8F);
+ }
+ }
+ }
+ }
+
+ if (data->innr) {
+ reg = pc87360_read_value(data, LD_IN, NO_BANK,
+ PC87365_REG_IN_CONFIG);
+ if (reg & 0x01) {
+ dev_dbg(&client->dev, "Forcibly "
+ "enabling monitoring (VLM)\n");
+ pc87360_write_value(data, LD_IN, NO_BANK,
+ PC87365_REG_IN_CONFIG,
+ reg & 0xFE);
+ }
+ }
+
+ if (data->tempnr) {
+ reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
+ PC87365_REG_TEMP_CONFIG);
+ if (reg & 0x01) {
+ dev_dbg(&client->dev, "Forcibly enabling "
+ "monitoring (TMS)\n");
+ pc87360_write_value(data, LD_TEMP, NO_BANK,
+ PC87365_REG_TEMP_CONFIG,
+ reg & 0xFE);
+ }
+
+ if (init >= 2) {
+ /* Chip config as documented by National Semi. */
+ pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
+ /* We voluntarily omit the bank here, in case the
+ sequence itself matters. It shouldn't be a problem,
+ since nobody else is supposed to access the
+ device at that point. */
+ pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
+ pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
+ pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
+ pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
+ }
+ }
+}
+
+static void pc87360_autodiv(struct i2c_client *client, int nr)
+{
+ struct pc87360_data *data = i2c_get_clientdata(client);
+ u8 old_min = data->fan_min[nr];
+
+ /* Increase clock divider if needed and possible */
+ if ((data->fan_status[nr] & 0x04) /* overflow flag */
+ || (data->fan[nr] >= 224)) { /* next to overflow */
+ if ((data->fan_status[nr] & 0x60) != 0x60) {
+ data->fan_status[nr] += 0x20;
+ data->fan_min[nr] >>= 1;
+ data->fan[nr] >>= 1;
+ dev_dbg(&client->dev, "Increasing "
+ "clock divider to %d for fan %d\n",
+ FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
+ }
+ } else {
+ /* Decrease clock divider if possible */
+ while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
+ && data->fan[nr] < 85 /* bad accuracy */
+ && (data->fan_status[nr] & 0x60) != 0x00) {
+ data->fan_status[nr] -= 0x20;
+ data->fan_min[nr] <<= 1;
+ data->fan[nr] <<= 1;
+ dev_dbg(&client->dev, "Decreasing "
+ "clock divider to %d for fan %d\n",
+ FAN_DIV_FROM_REG(data->fan_status[nr]),
+ nr+1);
+ }
+ }
+
+ /* Write new fan min if it changed */
+ if (old_min != data->fan_min[nr]) {
+ pc87360_write_value(data, LD_FAN, NO_BANK,
+ PC87360_REG_FAN_MIN(nr),
+ data->fan_min[nr]);
+ }
+}
+
+static struct pc87360_data *pc87360_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pc87360_data *data = i2c_get_clientdata(client);
+ u8 i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+ dev_dbg(&client->dev, "Data update\n");
+
+ /* Fans */
+ for (i = 0; i < data->fannr; i++) {
+ if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
+ data->fan_status[i] =
+ pc87360_read_value(data, LD_FAN,
+ NO_BANK, PC87360_REG_FAN_STATUS(i));
+ data->fan[i] = pc87360_read_value(data, LD_FAN,
+ NO_BANK, PC87360_REG_FAN(i));
+ data->fan_min[i] = pc87360_read_value(data,
+ LD_FAN, NO_BANK,
+ PC87360_REG_FAN_MIN(i));
+ /* Change clock divider if needed */
+ pc87360_autodiv(client, i);
+ /* Clear bits and write new divider */
+ pc87360_write_value(data, LD_FAN, NO_BANK,
+ PC87360_REG_FAN_STATUS(i),
+ data->fan_status[i]);
+ }
+ if (FAN_CONFIG_CONTROL(data->fan_conf, i))
+ data->pwm[i] = pc87360_read_value(data, LD_FAN,
+ NO_BANK, PC87360_REG_PWM(i));
+ }
+
+ /* Voltages */
+ for (i = 0; i < data->innr; i++) {
+ data->in_status[i] = pc87360_read_value(data, LD_IN, i,
+ PC87365_REG_IN_STATUS);
+ /* Clear bits */
+ pc87360_write_value(data, LD_IN, i,
+ PC87365_REG_IN_STATUS,
+ data->in_status[i]);
+ if ((data->in_status[i] & 0x81) == 0x81) {
+ data->in[i] = pc87360_read_value(data, LD_IN,
+ i, PC87365_REG_IN);
+ }
+ if (data->in_status[i] & 0x01) {
+ data->in_min[i] = pc87360_read_value(data,
+ LD_IN, i,
+ PC87365_REG_IN_MIN);
+ data->in_max[i] = pc87360_read_value(data,
+ LD_IN, i,
+ PC87365_REG_IN_MAX);
+ if (i >= 11)
+ data->in_crit[i-11] =
+ pc87360_read_value(data, LD_IN,
+ i, PC87365_REG_TEMP_CRIT);
+ }
+ }
+ if (data->innr) {
+ data->in_alarms = pc87360_read_value(data, LD_IN,
+ NO_BANK, PC87365_REG_IN_ALARMS1)
+ | ((pc87360_read_value(data, LD_IN,
+ NO_BANK, PC87365_REG_IN_ALARMS2)
+ & 0x07) << 8);
+ data->vid = (data->vid_conf & 0xE0) ?
+ pc87360_read_value(data, LD_IN,
+ NO_BANK, PC87365_REG_VID) : 0x1F;
+ }
+
+ /* Temperatures */
+ for (i = 0; i < data->tempnr; i++) {
+ data->temp_status[i] = pc87360_read_value(data,
+ LD_TEMP, i,
+ PC87365_REG_TEMP_STATUS);
+ /* Clear bits */
+ pc87360_write_value(data, LD_TEMP, i,
+ PC87365_REG_TEMP_STATUS,
+ data->temp_status[i]);
+ if ((data->temp_status[i] & 0x81) == 0x81) {
+ data->temp[i] = pc87360_read_value(data,
+ LD_TEMP, i,
+ PC87365_REG_TEMP);
+ }
+ if (data->temp_status[i] & 0x01) {
+ data->temp_min[i] = pc87360_read_value(data,
+ LD_TEMP, i,
+ PC87365_REG_TEMP_MIN);
+ data->temp_max[i] = pc87360_read_value(data,
+ LD_TEMP, i,
+ PC87365_REG_TEMP_MAX);
+ data->temp_crit[i] = pc87360_read_value(data,
+ LD_TEMP, i,
+ PC87365_REG_TEMP_CRIT);
+ }
+ }
+ if (data->tempnr) {
+ data->temp_alarms = pc87360_read_value(data, LD_TEMP,
+ NO_BANK, PC87365_REG_TEMP_ALARMS)
+ & 0x3F;
+ }
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init pc87360_init(void)
+{
+ int i;
+
+ if (pc87360_find(0x2e, &devid, extra_isa)
+ && pc87360_find(0x4e, &devid, extra_isa)) {
+ printk(KERN_WARNING "pc87360: PC8736x not detected, "
+ "module not inserted.\n");
+ return -ENODEV;
+ }
+
+ /* Arbitrarily pick one of the addresses */
+ for (i = 0; i < 3; i++) {
+ if (extra_isa[i] != 0x0000) {
+ normal_isa[0] = extra_isa[i];
+ break;
+ }
+ }
+
+ if (normal_isa[0] == 0x0000) {
+ printk(KERN_WARNING "pc87360: No active logical device, "
+ "module not inserted.\n");
+ return -ENODEV;
+ }
+
+ return i2c_add_driver(&pc87360_driver);
+}
+
+static void __exit pc87360_exit(void)
+{
+ i2c_del_driver(&pc87360_driver);
+}
+
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("PC8736x hardware monitor");
+MODULE_LICENSE("GPL");
+
+module_init(pc87360_init);
+module_exit(pc87360_exit);
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c
new file mode 100644
index 0000000..48b4e22
--- /dev/null
+++ b/drivers/i2c/chips/pcf8574.c
@@ -0,0 +1,229 @@
+/*
+ pcf8574.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>,
+ Philip Edelbrock <phil@netroedge.com>,
+ Dan Eaton <dan.eaton@rocketlogix.com>
+ Ported to Linux 2.6 by Aurelien Jarno <aurel32@debian.org> with
+ the help of Jean Delvare <khali@linux-fr.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/* A few notes about the PCF8574:
+
+* The PCF8574 is an 8-bit I/O expander for the I2C bus produced by
+ Philips Semiconductors. It is designed to provide a byte I2C
+ interface to up to 8 separate devices.
+
+* The PCF8574 appears as a very simple SMBus device which can be
+ read from or written to with SMBUS byte read/write accesses.
+
+ --Dan
+
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+ I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_2(pcf8574, pcf8574a);
+
+/* Initial values */
+#define PCF8574_INIT 255 /* All outputs on (input mode) */
+
+/* Each client has this additional data */
+struct pcf8574_data {
+ struct i2c_client client;
+
+ u8 read, write; /* Register values */
+};
+
+static int pcf8574_attach_adapter(struct i2c_adapter *adapter);
+static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind);
+static int pcf8574_detach_client(struct i2c_client *client);
+static void pcf8574_init_client(struct i2c_client *client);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver pcf8574_driver = {
+ .owner = THIS_MODULE,
+ .name = "pcf8574",
+ .id = I2C_DRIVERID_PCF8574,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = pcf8574_attach_adapter,
+ .detach_client = pcf8574_detach_client,
+};
+
+/* following are the sysfs callback functions */
+static ssize_t show_read(struct device *dev, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pcf8574_data *data = i2c_get_clientdata(client);
+ data->read = i2c_smbus_read_byte(client);
+ return sprintf(buf, "%u\n", data->read);
+}
+
+static DEVICE_ATTR(read, S_IRUGO, show_read, NULL);
+
+static ssize_t show_write(struct device *dev, char *buf)
+{
+ struct pcf8574_data *data = i2c_get_clientdata(to_i2c_client(dev));
+ return sprintf(buf, "%u\n", data->write);
+}
+
+static ssize_t set_write(struct device *dev, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pcf8574_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ if (val > 0xff)
+ return -EINVAL;
+
+ data->write = val;
+ i2c_smbus_write_byte(client, data->write);
+ return count;
+}
+
+static DEVICE_ATTR(write, S_IWUSR | S_IRUGO, show_write, set_write);
+
+/*
+ * Real code
+ */
+
+static int pcf8574_attach_adapter(struct i2c_adapter *adapter)
+{
+ return i2c_detect(adapter, &addr_data, pcf8574_detect);
+}
+
+/* This function is called by i2c_detect */
+int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct pcf8574_data *data;
+ int err = 0;
+ const char *client_name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet. */
+ if (!(data = kmalloc(sizeof(struct pcf8574_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct pcf8574_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &pcf8574_driver;
+ new_client->flags = 0;
+
+ /* Now, we would do the remaining detection. But the PCF8574 is plainly
+ impossible to detect! Stupid chip. */
+
+ /* Determine the chip type */
+ if (kind <= 0) {
+ if (address >= 0x38 && address <= 0x3f)
+ kind = pcf8574a;
+ else
+ kind = pcf8574;
+ }
+
+ if (kind == pcf8574a)
+ client_name = "pcf8574a";
+ else
+ client_name = "pcf8574";
+
+ /* Fill in the remaining client fields and put it into the global list */
+ strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the PCF8574 chip */
+ pcf8574_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_read);
+ device_create_file(&new_client->dev, &dev_attr_write);
+ return 0;
+
+/* OK, this is not exactly good programming practice, usually. But it is
+ very code-efficient in this case. */
+
+ exit_free:
+ kfree(data);
+ exit:
+ return err;
+}
+
+static int pcf8574_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+/* Called when we have found a new PCF8574. */
+static void pcf8574_init_client(struct i2c_client *client)
+{
+ struct pcf8574_data *data = i2c_get_clientdata(client);
+ data->write = PCF8574_INIT;
+ i2c_smbus_write_byte(client, data->write);
+}
+
+static int __init pcf8574_init(void)
+{
+ return i2c_add_driver(&pcf8574_driver);
+}
+
+static void __exit pcf8574_exit(void)
+{
+ i2c_del_driver(&pcf8574_driver);
+}
+
+
+MODULE_AUTHOR
+ ("Frodo Looijaard <frodol@dds.nl>, "
+ "Philip Edelbrock <phil@netroedge.com>, "
+ "Dan Eaton <dan.eaton@rocketlogix.com> "
+ "and Aurelien Jarno <aurelien@aurel32.net>");
+MODULE_DESCRIPTION("PCF8574 driver");
+MODULE_LICENSE("GPL");
+
+module_init(pcf8574_init);
+module_exit(pcf8574_exit);
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c
new file mode 100644
index 0000000..b6b927d
--- /dev/null
+++ b/drivers/i2c/chips/pcf8591.c
@@ -0,0 +1,316 @@
+/*
+ pcf8591.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (C) 2001-2004 Aurelien Jarno <aurelien@aurel32.net>
+ Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
+ the help of Jean Delvare <khali@linux-fr.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
+ 0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(pcf8591);
+
+static int input_mode;
+module_param(input_mode, int, 0);
+MODULE_PARM_DESC(input_mode,
+ "Analog input mode:\n"
+ " 0 = four single ended inputs\n"
+ " 1 = three differential inputs\n"
+ " 2 = single ended and differential mixed\n"
+ " 3 = two differential inputs\n");
+
+/* The PCF8591 control byte
+ 7 6 5 4 3 2 1 0
+ | 0 |AOEF| AIP | 0 |AINC| AICH | */
+
+/* Analog Output Enable Flag (analog output active if 1) */
+#define PCF8591_CONTROL_AOEF 0x40
+
+/* Analog Input Programming
+ 0x00 = four single ended inputs
+ 0x10 = three differential inputs
+ 0x20 = single ended and differential mixed
+ 0x30 = two differential inputs */
+#define PCF8591_CONTROL_AIP_MASK 0x30
+
+/* Autoincrement Flag (switch on if 1) */
+#define PCF8591_CONTROL_AINC 0x04
+
+/* Channel selection
+ 0x00 = channel 0
+ 0x01 = channel 1
+ 0x02 = channel 2
+ 0x03 = channel 3 */
+#define PCF8591_CONTROL_AICH_MASK 0x03
+
+/* Initial values */
+#define PCF8591_INIT_CONTROL ((input_mode << 4) | PCF8591_CONTROL_AOEF)
+#define PCF8591_INIT_AOUT 0 /* DAC out = 0 */
+
+/* Conversions */
+#define REG_TO_SIGNED(reg) (((reg) & 0x80)?((reg) - 256):(reg))
+
+struct pcf8591_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+
+ u8 control;
+ u8 aout;
+};
+
+static int pcf8591_attach_adapter(struct i2c_adapter *adapter);
+static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind);
+static int pcf8591_detach_client(struct i2c_client *client);
+static void pcf8591_init_client(struct i2c_client *client);
+static int pcf8591_read_channel(struct device *dev, int channel);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver pcf8591_driver = {
+ .owner = THIS_MODULE,
+ .name = "pcf8591",
+ .id = I2C_DRIVERID_PCF8591,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = pcf8591_attach_adapter,
+ .detach_client = pcf8591_detach_client,
+};
+
+/* following are the sysfs callback functions */
+#define show_in_channel(channel) \
+static ssize_t show_in##channel##_input(struct device *dev, char *buf) \
+{ \
+ return sprintf(buf, "%d\n", pcf8591_read_channel(dev, channel));\
+} \
+static DEVICE_ATTR(in##channel##_input, S_IRUGO, \
+ show_in##channel##_input, NULL);
+
+show_in_channel(0);
+show_in_channel(1);
+show_in_channel(2);
+show_in_channel(3);
+
+static ssize_t show_out0_ouput(struct device *dev, char *buf)
+{
+ struct pcf8591_data *data = i2c_get_clientdata(to_i2c_client(dev));
+ return sprintf(buf, "%d\n", data->aout * 10);
+}
+
+static ssize_t set_out0_output(struct device *dev, const char *buf, size_t count)
+{
+ unsigned int value;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pcf8591_data *data = i2c_get_clientdata(client);
+ if ((value = (simple_strtoul(buf, NULL, 10) + 5) / 10) <= 255) {
+ data->aout = value;
+ i2c_smbus_write_byte_data(client, data->control, data->aout);
+ return count;
+ }
+ return -EINVAL;
+}
+
+static DEVICE_ATTR(out0_output, S_IWUSR | S_IRUGO,
+ show_out0_ouput, set_out0_output);
+
+static ssize_t show_out0_enable(struct device *dev, char *buf)
+{
+ struct pcf8591_data *data = i2c_get_clientdata(to_i2c_client(dev));
+ return sprintf(buf, "%u\n", !(!(data->control & PCF8591_CONTROL_AOEF)));
+}
+
+static ssize_t set_out0_enable(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pcf8591_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ if (val)
+ data->control |= PCF8591_CONTROL_AOEF;
+ else
+ data->control &= ~PCF8591_CONTROL_AOEF;
+ i2c_smbus_write_byte(client, data->control);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(out0_enable, S_IWUSR | S_IRUGO,
+ show_out0_enable, set_out0_enable);
+
+/*
+ * Real code
+ */
+static int pcf8591_attach_adapter(struct i2c_adapter *adapter)
+{
+ return i2c_detect(adapter, &addr_data, pcf8591_detect);
+}
+
+/* This function is called by i2c_detect */
+int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct pcf8591_data *data;
+ int err = 0;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE
+ | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
+ goto exit;
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet. */
+ if (!(data = kmalloc(sizeof(struct pcf8591_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct pcf8591_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &pcf8591_driver;
+ new_client->flags = 0;
+
+ /* Now, we would do the remaining detection. But the PCF8591 is plainly
+ impossible to detect! Stupid chip. */
+
+ /* Determine the chip type - only one kind supported! */
+ if (kind <= 0)
+ kind = pcf8591;
+
+ /* Fill in the remaining client fields and put it into the global
+ list */
+ strlcpy(new_client->name, "pcf8591", I2C_NAME_SIZE);
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_kfree;
+
+ /* Initialize the PCF8591 chip */
+ pcf8591_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_out0_enable);
+ device_create_file(&new_client->dev, &dev_attr_out0_output);
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+
+ /* Register input2 if not in "two differential inputs" mode */
+ if (input_mode != 3 )
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+
+ /* Register input3 only in "four single ended inputs" mode */
+ if (input_mode == 0)
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+
+ return 0;
+
+ /* OK, this is not exactly good programming practice, usually. But it is
+ very code-efficient in this case. */
+
+exit_kfree:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int pcf8591_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+/* Called when we have found a new PCF8591. */
+static void pcf8591_init_client(struct i2c_client *client)
+{
+ struct pcf8591_data *data = i2c_get_clientdata(client);
+ data->control = PCF8591_INIT_CONTROL;
+ data->aout = PCF8591_INIT_AOUT;
+
+ i2c_smbus_write_byte_data(client, data->control, data->aout);
+
+ /* The first byte transmitted contains the conversion code of the
+ previous read cycle. FLUSH IT! */
+ i2c_smbus_read_byte(client);
+}
+
+static int pcf8591_read_channel(struct device *dev, int channel)
+{
+ u8 value;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pcf8591_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if ((data->control & PCF8591_CONTROL_AICH_MASK) != channel) {
+ data->control = (data->control & ~PCF8591_CONTROL_AICH_MASK)
+ | channel;
+ i2c_smbus_write_byte(client, data->control);
+
+ /* The first byte transmitted contains the conversion code of
+ the previous read cycle. FLUSH IT! */
+ i2c_smbus_read_byte(client);
+ }
+ value = i2c_smbus_read_byte(client);
+
+ up(&data->update_lock);
+
+ if ((channel == 2 && input_mode == 2) ||
+ (channel != 3 && (input_mode == 1 || input_mode == 3)))
+ return (10 * REG_TO_SIGNED(value));
+ else
+ return (10 * value);
+}
+
+static int __init pcf8591_init(void)
+{
+ if (input_mode < 0 || input_mode > 3) {
+ printk(KERN_WARNING "pcf8591: invalid input_mode (%d)\n",
+ input_mode);
+ input_mode = 0;
+ }
+ return i2c_add_driver(&pcf8591_driver);
+}
+
+static void __exit pcf8591_exit(void)
+{
+ i2c_del_driver(&pcf8591_driver);
+}
+
+MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
+MODULE_DESCRIPTION("PCF8591 driver");
+MODULE_LICENSE("GPL");
+
+module_init(pcf8591_init);
+module_exit(pcf8591_exit);
diff --git a/drivers/i2c/chips/rtc8564.c b/drivers/i2c/chips/rtc8564.c
new file mode 100644
index 0000000..5a9dedd
--- /dev/null
+++ b/drivers/i2c/chips/rtc8564.c
@@ -0,0 +1,394 @@
+/*
+ * linux/drivers/i2c/chips/rtc8564.c
+ *
+ * Copyright (C) 2002-2004 Stefan Eletzhofer
+ *
+ * based on linux/drivers/acron/char/pcf8583.c
+ * Copyright (C) 2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for system3's EPSON RTC 8564 chip
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/rtc.h> /* get the user-level API */
+#include <linux/init.h>
+#include <linux/init.h>
+
+#include "rtc8564.h"
+
+#ifdef DEBUG
+# define _DBG(x, fmt, args...) do{ if (debug>=x) printk(KERN_DEBUG"%s: " fmt "\n", __FUNCTION__, ##args); } while(0);
+#else
+# define _DBG(x, fmt, args...) do { } while(0);
+#endif
+
+#define _DBGRTCTM(x, rtctm) if (debug>=x) printk("%s: secs=%d, mins=%d, hours=%d, mday=%d, " \
+ "mon=%d, year=%d, wday=%d VL=%d\n", __FUNCTION__, \
+ (rtctm).secs, (rtctm).mins, (rtctm).hours, (rtctm).mday, \
+ (rtctm).mon, (rtctm).year, (rtctm).wday, (rtctm).vl);
+
+struct rtc8564_data {
+ struct i2c_client client;
+ u16 ctrl;
+};
+
+static inline u8 _rtc8564_ctrl1(struct i2c_client *client)
+{
+ struct rtc8564_data *data = i2c_get_clientdata(client);
+ return data->ctrl & 0xff;
+}
+static inline u8 _rtc8564_ctrl2(struct i2c_client *client)
+{
+ struct rtc8564_data *data = i2c_get_clientdata(client);
+ return (data->ctrl & 0xff00) >> 8;
+}
+
+#define CTRL1(c) _rtc8564_ctrl1(c)
+#define CTRL2(c) _rtc8564_ctrl2(c)
+
+#define BCD_TO_BIN(val) (((val)&15) + ((val)>>4)*10)
+#define BIN_TO_BCD(val) ((((val)/10)<<4) + (val)%10)
+
+static int debug;;
+module_param(debug, int, S_IRUGO | S_IWUSR);
+
+static struct i2c_driver rtc8564_driver;
+
+static unsigned short ignore[] = { I2C_CLIENT_END };
+static unsigned short normal_addr[] = { 0x51, I2C_CLIENT_END };
+
+static struct i2c_client_address_data addr_data = {
+ .normal_i2c = normal_addr,
+ .normal_i2c_range = ignore,
+ .probe = ignore,
+ .probe_range = ignore,
+ .ignore = ignore,
+ .ignore_range = ignore,
+ .force = ignore,
+};
+
+static int rtc8564_read_mem(struct i2c_client *client, struct mem *mem);
+static int rtc8564_write_mem(struct i2c_client *client, struct mem *mem);
+
+static int rtc8564_read(struct i2c_client *client, unsigned char adr,
+ unsigned char *buf, unsigned char len)
+{
+ int ret = -EIO;
+ unsigned char addr[1] = { adr };
+ struct i2c_msg msgs[2] = {
+ {client->addr, 0, 1, addr},
+ {client->addr, I2C_M_RD, len, buf}
+ };
+
+ _DBG(1, "client=%p, adr=%d, buf=%p, len=%d", client, adr, buf, len);
+
+ if (!buf) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ ret = i2c_transfer(client->adapter, msgs, 2);
+ if (ret == 2) {
+ ret = 0;
+ }
+
+done:
+ return ret;
+}
+
+static int rtc8564_write(struct i2c_client *client, unsigned char adr,
+ unsigned char *data, unsigned char len)
+{
+ int ret = 0;
+ unsigned char _data[16];
+ struct i2c_msg wr;
+ int i;
+
+ if (!data || len > 15) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ _DBG(1, "client=%p, adr=%d, buf=%p, len=%d", client, adr, data, len);
+
+ _data[0] = adr;
+ for (i = 0; i < len; i++) {
+ _data[i + 1] = data[i];
+ _DBG(5, "data[%d] = 0x%02x (%d)", i, data[i], data[i]);
+ }
+
+ wr.addr = client->addr;
+ wr.flags = 0;
+ wr.len = len + 1;
+ wr.buf = _data;
+
+ ret = i2c_transfer(client->adapter, &wr, 1);
+ if (ret == 1) {
+ ret = 0;
+ }
+
+done:
+ return ret;
+}
+
+static int rtc8564_attach(struct i2c_adapter *adap, int addr, int kind)
+{
+ int ret;
+ struct i2c_client *new_client;
+ struct rtc8564_data *d;
+ unsigned char data[10];
+ unsigned char ad[1] = { 0 };
+ struct i2c_msg ctrl_wr[1] = {
+ {addr, 0, 2, data}
+ };
+ struct i2c_msg ctrl_rd[2] = {
+ {addr, 0, 1, ad},
+ {addr, I2C_M_RD, 2, data}
+ };
+
+ d = kmalloc(sizeof(struct rtc8564_data), GFP_KERNEL);
+ if (!d) {
+ ret = -ENOMEM;
+ goto done;
+ }
+ memset(d, 0, sizeof(struct rtc8564_data));
+ new_client = &d->client;
+
+ strlcpy(new_client->name, "RTC8564", I2C_NAME_SIZE);
+ i2c_set_clientdata(new_client, d);
+ new_client->flags = I2C_CLIENT_ALLOW_USE | I2C_DF_NOTIFY;
+ new_client->addr = addr;
+ new_client->adapter = adap;
+ new_client->driver = &rtc8564_driver;
+
+ _DBG(1, "client=%p", new_client);
+
+ /* init ctrl1 reg */
+ data[0] = 0;
+ data[1] = 0;
+ ret = i2c_transfer(new_client->adapter, ctrl_wr, 1);
+ if (ret != 1) {
+ printk(KERN_INFO "rtc8564: cant init ctrl1\n");
+ ret = -ENODEV;
+ goto done;
+ }
+
+ /* read back ctrl1 and ctrl2 */
+ ret = i2c_transfer(new_client->adapter, ctrl_rd, 2);
+ if (ret != 2) {
+ printk(KERN_INFO "rtc8564: cant read ctrl\n");
+ ret = -ENODEV;
+ goto done;
+ }
+
+ d->ctrl = data[0] | (data[1] << 8);
+
+ _DBG(1, "RTC8564_REG_CTRL1=%02x, RTC8564_REG_CTRL2=%02x",
+ data[0], data[1]);
+
+ ret = i2c_attach_client(new_client);
+done:
+ if (ret) {
+ kfree(d);
+ }
+ return ret;
+}
+
+static int rtc8564_probe(struct i2c_adapter *adap)
+{
+ return i2c_probe(adap, &addr_data, rtc8564_attach);
+}
+
+static int rtc8564_detach(struct i2c_client *client)
+{
+ i2c_detach_client(client);
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static int rtc8564_get_datetime(struct i2c_client *client, struct rtc_tm *dt)
+{
+ int ret = -EIO;
+ unsigned char buf[15];
+
+ _DBG(1, "client=%p, dt=%p", client, dt);
+
+ if (!dt)
+ return -EINVAL;
+
+ memset(buf, 0, sizeof(buf));
+
+ ret = rtc8564_read(client, 0, buf, 15);
+ if (ret)
+ return ret;
+
+ /* century stored in minute alarm reg */
+ dt->year = BCD_TO_BIN(buf[RTC8564_REG_YEAR]);
+ dt->year += 100 * BCD_TO_BIN(buf[RTC8564_REG_AL_MIN] & 0x3f);
+ dt->mday = BCD_TO_BIN(buf[RTC8564_REG_DAY] & 0x3f);
+ dt->wday = BCD_TO_BIN(buf[RTC8564_REG_WDAY] & 7);
+ dt->mon = BCD_TO_BIN(buf[RTC8564_REG_MON_CENT] & 0x1f);
+
+ dt->secs = BCD_TO_BIN(buf[RTC8564_REG_SEC] & 0x7f);
+ dt->vl = (buf[RTC8564_REG_SEC] & 0x80) == 0x80;
+ dt->mins = BCD_TO_BIN(buf[RTC8564_REG_MIN] & 0x7f);
+ dt->hours = BCD_TO_BIN(buf[RTC8564_REG_HR] & 0x3f);
+
+ _DBGRTCTM(2, *dt);
+
+ return 0;
+}
+
+static int
+rtc8564_set_datetime(struct i2c_client *client, struct rtc_tm *dt, int datetoo)
+{
+ int ret, len = 5;
+ unsigned char buf[15];
+
+ _DBG(1, "client=%p, dt=%p", client, dt);
+
+ if (!dt)
+ return -EINVAL;
+
+ _DBGRTCTM(2, *dt);
+
+ buf[RTC8564_REG_CTRL1] = CTRL1(client) | RTC8564_CTRL1_STOP;
+ buf[RTC8564_REG_CTRL2] = CTRL2(client);
+ buf[RTC8564_REG_SEC] = BIN_TO_BCD(dt->secs);
+ buf[RTC8564_REG_MIN] = BIN_TO_BCD(dt->mins);
+ buf[RTC8564_REG_HR] = BIN_TO_BCD(dt->hours);
+
+ if (datetoo) {
+ len += 5;
+ buf[RTC8564_REG_DAY] = BIN_TO_BCD(dt->mday);
+ buf[RTC8564_REG_WDAY] = BIN_TO_BCD(dt->wday);
+ buf[RTC8564_REG_MON_CENT] = BIN_TO_BCD(dt->mon) & 0x1f;
+ /* century stored in minute alarm reg */
+ buf[RTC8564_REG_YEAR] = BIN_TO_BCD(dt->year % 100);
+ buf[RTC8564_REG_AL_MIN] = BIN_TO_BCD(dt->year / 100);
+ }
+
+ ret = rtc8564_write(client, 0, buf, len);
+ if (ret) {
+ _DBG(1, "error writing data! %d", ret);
+ }
+
+ buf[RTC8564_REG_CTRL1] = CTRL1(client);
+ ret = rtc8564_write(client, 0, buf, 1);
+ if (ret) {
+ _DBG(1, "error writing data! %d", ret);
+ }
+
+ return ret;
+}
+
+static int rtc8564_get_ctrl(struct i2c_client *client, unsigned int *ctrl)
+{
+ struct rtc8564_data *data = i2c_get_clientdata(client);
+
+ if (!ctrl)
+ return -1;
+
+ *ctrl = data->ctrl;
+ return 0;
+}
+
+static int rtc8564_set_ctrl(struct i2c_client *client, unsigned int *ctrl)
+{
+ struct rtc8564_data *data = i2c_get_clientdata(client);
+ unsigned char buf[2];
+
+ if (!ctrl)
+ return -1;
+
+ buf[0] = *ctrl & 0xff;
+ buf[1] = (*ctrl & 0xff00) >> 8;
+ data->ctrl = *ctrl;
+
+ return rtc8564_write(client, 0, buf, 2);
+}
+
+static int rtc8564_read_mem(struct i2c_client *client, struct mem *mem)
+{
+
+ if (!mem)
+ return -EINVAL;
+
+ return rtc8564_read(client, mem->loc, mem->data, mem->nr);
+}
+
+static int rtc8564_write_mem(struct i2c_client *client, struct mem *mem)
+{
+
+ if (!mem)
+ return -EINVAL;
+
+ return rtc8564_write(client, mem->loc, mem->data, mem->nr);
+}
+
+static int
+rtc8564_command(struct i2c_client *client, unsigned int cmd, void *arg)
+{
+
+ _DBG(1, "cmd=%d", cmd);
+
+ switch (cmd) {
+ case RTC_GETDATETIME:
+ return rtc8564_get_datetime(client, arg);
+
+ case RTC_SETTIME:
+ return rtc8564_set_datetime(client, arg, 0);
+
+ case RTC_SETDATETIME:
+ return rtc8564_set_datetime(client, arg, 1);
+
+ case RTC_GETCTRL:
+ return rtc8564_get_ctrl(client, arg);
+
+ case RTC_SETCTRL:
+ return rtc8564_set_ctrl(client, arg);
+
+ case MEM_READ:
+ return rtc8564_read_mem(client, arg);
+
+ case MEM_WRITE:
+ return rtc8564_write_mem(client, arg);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static struct i2c_driver rtc8564_driver = {
+ .owner = THIS_MODULE,
+ .name = "RTC8564",
+ .id = I2C_DRIVERID_RTC8564,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = rtc8564_probe,
+ .detach_client = rtc8564_detach,
+ .command = rtc8564_command
+};
+
+static __init int rtc8564_init(void)
+{
+ return i2c_add_driver(&rtc8564_driver);
+}
+
+static __exit void rtc8564_exit(void)
+{
+ i2c_del_driver(&rtc8564_driver);
+}
+
+MODULE_AUTHOR("Stefan Eletzhofer <Stefan.Eletzhofer@eletztrick.de>");
+MODULE_DESCRIPTION("EPSON RTC8564 Driver");
+MODULE_LICENSE("GPL");
+
+module_init(rtc8564_init);
+module_exit(rtc8564_exit);
diff --git a/drivers/i2c/chips/rtc8564.h b/drivers/i2c/chips/rtc8564.h
new file mode 100644
index 0000000..e5342d1
--- /dev/null
+++ b/drivers/i2c/chips/rtc8564.h
@@ -0,0 +1,78 @@
+/*
+ * linux/drivers/i2c/chips/rtc8564.h
+ *
+ * Copyright (C) 2002-2004 Stefan Eletzhofer
+ *
+ * based on linux/drivers/acron/char/pcf8583.h
+ * Copyright (C) 2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+struct rtc_tm {
+ unsigned char secs;
+ unsigned char mins;
+ unsigned char hours;
+ unsigned char mday;
+ unsigned char mon;
+ unsigned short year; /* xxxx 4 digits :) */
+ unsigned char wday;
+ unsigned char vl;
+};
+
+struct mem {
+ unsigned int loc;
+ unsigned int nr;
+ unsigned char *data;
+};
+
+#define RTC_GETDATETIME 0
+#define RTC_SETTIME 1
+#define RTC_SETDATETIME 2
+#define RTC_GETCTRL 3
+#define RTC_SETCTRL 4
+#define MEM_READ 5
+#define MEM_WRITE 6
+
+#define RTC8564_REG_CTRL1 0x0 /* T 0 S 0 | T 0 0 0 */
+#define RTC8564_REG_CTRL2 0x1 /* 0 0 0 TI/TP | AF TF AIE TIE */
+#define RTC8564_REG_SEC 0x2 /* VL 4 2 1 | 8 4 2 1 */
+#define RTC8564_REG_MIN 0x3 /* x 4 2 1 | 8 4 2 1 */
+#define RTC8564_REG_HR 0x4 /* x x 2 1 | 8 4 2 1 */
+#define RTC8564_REG_DAY 0x5 /* x x 2 1 | 8 4 2 1 */
+#define RTC8564_REG_WDAY 0x6 /* x x x x | x 4 2 1 */
+#define RTC8564_REG_MON_CENT 0x7 /* C x x 1 | 8 4 2 1 */
+#define RTC8564_REG_YEAR 0x8 /* 8 4 2 1 | 8 4 2 1 */
+#define RTC8564_REG_AL_MIN 0x9 /* AE 4 2 1 | 8 4 2 1 */
+#define RTC8564_REG_AL_HR 0xa /* AE 4 2 1 | 8 4 2 1 */
+#define RTC8564_REG_AL_DAY 0xb /* AE x 2 1 | 8 4 2 1 */
+#define RTC8564_REG_AL_WDAY 0xc /* AE x x x | x 4 2 1 */
+#define RTC8564_REG_CLKOUT 0xd /* FE x x x | x x FD1 FD0 */
+#define RTC8564_REG_TCTL 0xe /* TE x x x | x x FD1 FD0 */
+#define RTC8564_REG_TIMER 0xf /* 8 bit binary */
+
+/* Control reg */
+#define RTC8564_CTRL1_TEST1 (1<<3)
+#define RTC8564_CTRL1_STOP (1<<5)
+#define RTC8564_CTRL1_TEST2 (1<<7)
+
+#define RTC8564_CTRL2_TIE (1<<0)
+#define RTC8564_CTRL2_AIE (1<<1)
+#define RTC8564_CTRL2_TF (1<<2)
+#define RTC8564_CTRL2_AF (1<<3)
+#define RTC8564_CTRL2_TI_TP (1<<4)
+
+/* CLKOUT frequencies */
+#define RTC8564_FD_32768HZ (0x0)
+#define RTC8564_FD_1024HZ (0x1)
+#define RTC8564_FD_32 (0x2)
+#define RTC8564_FD_1HZ (0x3)
+
+/* Timer CTRL */
+#define RTC8564_TD_4096HZ (0x0)
+#define RTC8564_TD_64HZ (0x1)
+#define RTC8564_TD_1HZ (0x2)
+#define RTC8564_TD_1_60HZ (0x3)
+
+#define I2C_DRIVERID_RTC8564 0xf000
diff --git a/drivers/i2c/chips/sis5595.c b/drivers/i2c/chips/sis5595.c
new file mode 100644
index 0000000..7ea8453
--- /dev/null
+++ b/drivers/i2c/chips/sis5595.c
@@ -0,0 +1,816 @@
+/*
+ sis5595.c - Part of lm_sensors, Linux kernel modules
+ for hardware monitoring
+
+ Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
+ Kyösti Mälkki <kmalkki@cc.hut.fi>, and
+ Mark D. Studebaker <mdsxyz123@yahoo.com>
+ Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
+ the help of Jean Delvare <khali@linux-fr.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ SiS southbridge has a LM78-like chip integrated on the same IC.
+ This driver is a customized copy of lm78.c
+
+ Supports following revisions:
+ Version PCI ID PCI Revision
+ 1 1039/0008 AF or less
+ 2 1039/0008 B0 or greater
+
+ Note: these chips contain a 0008 device which is incompatible with the
+ 5595. We recognize these by the presence of the listed
+ "blacklist" PCI ID and refuse to load.
+
+ NOT SUPPORTED PCI ID BLACKLIST PCI ID
+ 540 0008 0540
+ 550 0008 0550
+ 5513 0008 5511
+ 5581 0008 5597
+ 5582 0008 5597
+ 5597 0008 5597
+ 5598 0008 5597/5598
+ 630 0008 0630
+ 645 0008 0645
+ 730 0008 0730
+ 735 0008 0735
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/init.h>
+#include <asm/io.h>
+
+
+/* If force_addr is set to anything different from 0, we forcibly enable
+ the device at the given address. */
+static u16 force_addr;
+module_param(force_addr, ushort, 0);
+MODULE_PARM_DESC(force_addr,
+ "Initialize the base address of the sensors");
+
+/* Addresses to scan.
+ Note that we can't determine the ISA address until we have initialized
+ our module */
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+static unsigned int normal_isa[] = { 0x0000, I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(sis5595);
+
+/* Many SIS5595 constants specified below */
+
+/* Length of ISA address segment */
+#define SIS5595_EXTENT 8
+/* PCI Config Registers */
+#define SIS5595_REVISION_REG 0x08
+#define SIS5595_BASE_REG 0x68
+#define SIS5595_PIN_REG 0x7A
+#define SIS5595_ENABLE_REG 0x7B
+
+/* Where are the ISA address/data registers relative to the base address */
+#define SIS5595_ADDR_REG_OFFSET 5
+#define SIS5595_DATA_REG_OFFSET 6
+
+/* The SIS5595 registers */
+#define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2)
+#define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2)
+#define SIS5595_REG_IN(nr) (0x20 + (nr))
+
+#define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr))
+#define SIS5595_REG_FAN(nr) (0x28 + (nr))
+
+/* On the first version of the chip, the temp registers are separate.
+ On the second version,
+ TEMP pin is shared with IN4, configured in PCI register 0x7A.
+ The registers are the same as well.
+ OVER and HYST are really MAX and MIN. */
+
+#define REV2MIN 0xb0
+#define SIS5595_REG_TEMP (( data->revision) >= REV2MIN) ? \
+ SIS5595_REG_IN(4) : 0x27
+#define SIS5595_REG_TEMP_OVER (( data->revision) >= REV2MIN) ? \
+ SIS5595_REG_IN_MAX(4) : 0x39
+#define SIS5595_REG_TEMP_HYST (( data->revision) >= REV2MIN) ? \
+ SIS5595_REG_IN_MIN(4) : 0x3a
+
+#define SIS5595_REG_CONFIG 0x40
+#define SIS5595_REG_ALARM1 0x41
+#define SIS5595_REG_ALARM2 0x42
+#define SIS5595_REG_FANDIV 0x47
+
+/* Conversions. Limit checking is only done on the TO_REG
+ variants. */
+
+/* IN: mV, (0V to 4.08V)
+ REG: 16mV/bit */
+static inline u8 IN_TO_REG(unsigned long val)
+{
+ unsigned long nval = SENSORS_LIMIT(val, 0, 4080);
+ return (nval + 8) / 16;
+}
+#define IN_FROM_REG(val) ((val) * 16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+ if (rpm <= 0)
+ return 255;
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+static inline int FAN_FROM_REG(u8 val, int div)
+{
+ return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+}
+
+/* TEMP: mC (-54.12C to +157.53C)
+ REG: 0.83C/bit + 52.12, two's complement */
+static inline int TEMP_FROM_REG(s8 val)
+{
+ return val * 830 + 52120;
+}
+static inline s8 TEMP_TO_REG(int val)
+{
+ int nval = SENSORS_LIMIT(val, -54120, 157530) ;
+ return nval<0 ? (nval-5212-415)/830 : (nval-5212+415)/830;
+}
+
+/* FAN DIV: 1, 2, 4, or 8 (defaults to 2)
+ REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */
+static inline u8 DIV_TO_REG(int val)
+{
+ return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1;
+}
+#define DIV_FROM_REG(val) (1 << (val))
+
+/* For the SIS5595, we need to keep some data in memory. That
+ data is pointed to by sis5595_list[NR]->data. The structure itself is
+ dynamically allocated, at the time when the new sis5595 client is
+ allocated. */
+struct sis5595_data {
+ struct i2c_client client;
+ struct semaphore lock;
+
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+ char maxins; /* == 3 if temp enabled, otherwise == 4 */
+ u8 revision; /* Reg. value */
+
+ u8 in[5]; /* Register value */
+ u8 in_max[5]; /* Register value */
+ u8 in_min[5]; /* Register value */
+ u8 fan[2]; /* Register value */
+ u8 fan_min[2]; /* Register value */
+ s8 temp; /* Register value */
+ s8 temp_over; /* Register value */
+ s8 temp_hyst; /* Register value */
+ u8 fan_div[2]; /* Register encoding, shifted right */
+ u16 alarms; /* Register encoding, combined */
+};
+
+static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */
+
+static int sis5595_attach_adapter(struct i2c_adapter *adapter);
+static int sis5595_detect(struct i2c_adapter *adapter, int address, int kind);
+static int sis5595_detach_client(struct i2c_client *client);
+
+static int sis5595_read_value(struct i2c_client *client, u8 register);
+static int sis5595_write_value(struct i2c_client *client, u8 register, u8 value);
+static struct sis5595_data *sis5595_update_device(struct device *dev);
+static void sis5595_init_client(struct i2c_client *client);
+
+static struct i2c_driver sis5595_driver = {
+ .owner = THIS_MODULE,
+ .name = "sis5595",
+ .id = I2C_DRIVERID_SIS5595,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = sis5595_attach_adapter,
+ .detach_client = sis5595_detach_client,
+};
+
+/* 4 Voltages */
+static ssize_t show_in(struct device *dev, char *buf, int nr)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
+}
+
+static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
+}
+
+static ssize_t set_in_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[nr] = IN_TO_REG(val);
+ sis5595_write_value(client, SIS5595_REG_IN_MIN(nr), data->in_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t set_in_max(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[nr] = IN_TO_REG(val);
+ sis5595_write_value(client, SIS5595_REG_IN_MAX(nr), data->in_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define show_in_offset(offset) \
+static ssize_t \
+ show_in##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+ show_in##offset, NULL); \
+static ssize_t \
+ show_in##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_in_min(dev, buf, offset); \
+} \
+static ssize_t \
+ show_in##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_in_max(dev, buf, offset); \
+} \
+static ssize_t set_in##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_min(dev, buf, count, offset); \
+} \
+static ssize_t set_in##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_max(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in##offset##_max, set_in##offset##_max);
+
+show_in_offset(0);
+show_in_offset(1);
+show_in_offset(2);
+show_in_offset(3);
+show_in_offset(4);
+
+/* Temperature */
+static ssize_t show_temp(struct device *dev, char *buf)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));
+}
+
+static ssize_t show_temp_over(struct device *dev, char *buf)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
+}
+
+static ssize_t set_temp_over(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_over = TEMP_TO_REG(val);
+ sis5595_write_value(client, SIS5595_REG_TEMP_OVER, data->temp_over);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_temp_hyst(struct device *dev, char *buf)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));
+}
+
+static ssize_t set_temp_hyst(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_hyst = TEMP_TO_REG(val);
+ sis5595_write_value(client, SIS5595_REG_TEMP_HYST, data->temp_hyst);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+ show_temp_over, set_temp_over);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp_hyst, set_temp_hyst);
+
+/* 2 Fans */
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+ DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+ sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan divisor. This follows the principle of
+ least suprise; the user doesn't expect the fan minimum to change just
+ because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ unsigned long min;
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+ int reg;
+
+ down(&data->update_lock);
+ min = FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+ reg = sis5595_read_value(client, SIS5595_REG_FANDIV);
+
+ switch (val) {
+ case 1: data->fan_div[nr] = 0; break;
+ case 2: data->fan_div[nr] = 1; break;
+ case 4: data->fan_div[nr] = 2; break;
+ case 8: data->fan_div[nr] = 3; break;
+ default:
+ dev_err(&client->dev, "fan_div value %ld not "
+ "supported. Choose one of 1, 2, 4 or 8!\n", val);
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ switch (nr) {
+ case 0:
+ reg = (reg & 0xcf) | (data->fan_div[nr] << 4);
+ break;
+ case 1:
+ reg = (reg & 0x3f) | (data->fan_div[nr] << 6);
+ break;
+ }
+ sis5595_write_value(client, SIS5595_REG_FANDIV, reg);
+ data->fan_min[nr] =
+ FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+ sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+
+#define show_fan_offset(offset) \
+static ssize_t show_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
+{ \
+ return show_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);\
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_min, set_fan_##offset##_min);
+
+show_fan_offset(1);
+show_fan_offset(2);
+
+static ssize_t set_fan_1_div(struct device *dev, const char *buf,
+ size_t count)
+{
+ return set_fan_div(dev, buf, count, 0) ;
+}
+
+static ssize_t set_fan_2_div(struct device *dev, const char *buf,
+ size_t count)
+{
+ return set_fan_div(dev, buf, count, 1) ;
+}
+static DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
+ show_fan_1_div, set_fan_1_div);
+static DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
+ show_fan_2_div, set_fan_2_div);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, char *buf)
+{
+ struct sis5595_data *data = sis5595_update_device(dev);
+ return sprintf(buf, "%d\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+/* This is called when the module is loaded */
+static int sis5595_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, sis5595_detect);
+}
+
+int sis5595_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int err = 0;
+ int i;
+ struct i2c_client *new_client;
+ struct sis5595_data *data;
+ char val;
+ u16 a;
+
+ /* Make sure we are probing the ISA bus!! */
+ if (!i2c_is_isa_adapter(adapter))
+ goto exit;
+
+ if (force_addr)
+ address = force_addr & ~(SIS5595_EXTENT - 1);
+ /* Reserve the ISA region */
+ if (!request_region(address, SIS5595_EXTENT, sis5595_driver.name)) {
+ err = -EBUSY;
+ goto exit;
+ }
+ if (force_addr) {
+ dev_warn(&adapter->dev, "forcing ISA address 0x%04X\n", address);
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_write_config_word(s_bridge, SIS5595_BASE_REG, address))
+ goto exit_release;
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_read_config_word(s_bridge, SIS5595_BASE_REG, &a))
+ goto exit_release;
+ if ((a & ~(SIS5595_EXTENT - 1)) != address)
+ /* doesn't work for some chips? */
+ goto exit_release;
+ }
+
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val)) {
+ goto exit_release;
+ }
+ if ((val & 0x80) == 0) {
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_write_config_byte(s_bridge, SIS5595_ENABLE_REG,
+ val | 0x80))
+ goto exit_release;
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val))
+ goto exit_release;
+ if ((val & 0x80) == 0)
+ /* doesn't work for some chips! */
+ goto exit_release;
+ }
+
+ if (!(data = kmalloc(sizeof(struct sis5595_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit_release;
+ }
+ memset(data, 0, sizeof(struct sis5595_data));
+
+ new_client = &data->client;
+ new_client->addr = address;
+ init_MUTEX(&data->lock);
+ i2c_set_clientdata(new_client, data);
+ new_client->adapter = adapter;
+ new_client->driver = &sis5595_driver;
+ new_client->flags = 0;
+
+ /* Check revision and pin registers to determine whether 4 or 5 voltages */
+ pci_read_config_byte(s_bridge, SIS5595_REVISION_REG, &(data->revision));
+ /* 4 voltages, 1 temp */
+ data->maxins = 3;
+ if (data->revision >= REV2MIN) {
+ pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val);
+ if (!(val & 0x80))
+ /* 5 voltages, no temps */
+ data->maxins = 4;
+ }
+
+ /* Fill in the remaining client fields and put it into the global list */
+ strlcpy(new_client->name, "sis5595", I2C_NAME_SIZE);
+
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /* Initialize the SIS5595 chip */
+ sis5595_init_client(new_client);
+
+ /* A few vars need to be filled upon startup */
+ for (i = 0; i < 2; i++) {
+ data->fan_min[i] = sis5595_read_value(new_client,
+ SIS5595_REG_FAN_MIN(i));
+ }
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ if (data->maxins == 4) {
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ }
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+ if (data->maxins == 3) {
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ }
+ return 0;
+
+exit_free:
+ kfree(data);
+exit_release:
+ release_region(address, SIS5595_EXTENT);
+exit:
+ return err;
+}
+
+static int sis5595_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ if (i2c_is_isa_client(client))
+ release_region(client->addr, SIS5595_EXTENT);
+
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+
+/* ISA access must be locked explicitly. */
+static int sis5595_read_value(struct i2c_client *client, u8 reg)
+{
+ int res;
+
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ down(&data->lock);
+ outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
+ res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET);
+ up(&data->lock);
+ return res;
+}
+
+static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ down(&data->lock);
+ outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
+ outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET);
+ up(&data->lock);
+ return 0;
+}
+
+/* Called when we have found a new SIS5595. */
+static void sis5595_init_client(struct i2c_client *client)
+{
+ u8 config = sis5595_read_value(client, SIS5595_REG_CONFIG);
+ if (!(config & 0x01))
+ sis5595_write_value(client, SIS5595_REG_CONFIG,
+ (config & 0xf7) | 0x01);
+}
+
+static struct sis5595_data *sis5595_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct sis5595_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+
+ for (i = 0; i <= data->maxins; i++) {
+ data->in[i] =
+ sis5595_read_value(client, SIS5595_REG_IN(i));
+ data->in_min[i] =
+ sis5595_read_value(client,
+ SIS5595_REG_IN_MIN(i));
+ data->in_max[i] =
+ sis5595_read_value(client,
+ SIS5595_REG_IN_MAX(i));
+ }
+ for (i = 0; i < 2; i++) {
+ data->fan[i] =
+ sis5595_read_value(client, SIS5595_REG_FAN(i));
+ data->fan_min[i] =
+ sis5595_read_value(client,
+ SIS5595_REG_FAN_MIN(i));
+ }
+ if (data->maxins == 3) {
+ data->temp =
+ sis5595_read_value(client, SIS5595_REG_TEMP);
+ data->temp_over =
+ sis5595_read_value(client, SIS5595_REG_TEMP_OVER);
+ data->temp_hyst =
+ sis5595_read_value(client, SIS5595_REG_TEMP_HYST);
+ }
+ i = sis5595_read_value(client, SIS5595_REG_FANDIV);
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = i >> 6;
+ data->alarms =
+ sis5595_read_value(client, SIS5595_REG_ALARM1) |
+ (sis5595_read_value(client, SIS5595_REG_ALARM2) << 8);
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static struct pci_device_id sis5595_pci_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, sis5595_pci_ids);
+
+static int blacklist[] __devinitdata = {
+ PCI_DEVICE_ID_SI_540,
+ PCI_DEVICE_ID_SI_550,
+ PCI_DEVICE_ID_SI_630,
+ PCI_DEVICE_ID_SI_645,
+ PCI_DEVICE_ID_SI_730,
+ PCI_DEVICE_ID_SI_735,
+ PCI_DEVICE_ID_SI_5511, /* 5513 chip has the 0008 device but
+ that ID shows up in other chips so we
+ use the 5511 ID for recognition */
+ PCI_DEVICE_ID_SI_5597,
+ PCI_DEVICE_ID_SI_5598,
+ 0 };
+
+static int __devinit sis5595_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ u16 val;
+ int *i;
+ int addr = 0;
+
+ for (i = blacklist; *i != 0; i++) {
+ struct pci_dev *dev;
+ dev = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL);
+ if (dev) {
+ dev_err(&dev->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i);
+ pci_dev_put(dev);
+ return -ENODEV;
+ }
+ }
+
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_read_config_word(dev, SIS5595_BASE_REG, &val))
+ return -ENODEV;
+
+ addr = val & ~(SIS5595_EXTENT - 1);
+ if (addr == 0 && force_addr == 0) {
+ dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr\n");
+ return -ENODEV;
+ }
+ if (force_addr)
+ addr = force_addr; /* so detect will get called */
+
+ if (!addr) {
+ dev_err(&dev->dev,"No SiS 5595 sensors found.\n");
+ return -ENODEV;
+ }
+ normal_isa[0] = addr;
+
+ s_bridge = pci_dev_get(dev);
+ if (i2c_add_driver(&sis5595_driver)) {
+ pci_dev_put(s_bridge);
+ s_bridge = NULL;
+ }
+
+ /* Always return failure here. This is to allow other drivers to bind
+ * to this pci device. We don't really want to have control over the
+ * pci device, we only wanted to read as few register values from it.
+ */
+ return -ENODEV;
+}
+
+static struct pci_driver sis5595_pci_driver = {
+ .name = "sis5595",
+ .id_table = sis5595_pci_ids,
+ .probe = sis5595_pci_probe,
+};
+
+static int __init sm_sis5595_init(void)
+{
+ return pci_register_driver(&sis5595_pci_driver);
+}
+
+static void __exit sm_sis5595_exit(void)
+{
+ pci_unregister_driver(&sis5595_pci_driver);
+ if (s_bridge != NULL) {
+ i2c_del_driver(&sis5595_driver);
+ pci_dev_put(s_bridge);
+ s_bridge = NULL;
+ }
+}
+
+MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
+MODULE_DESCRIPTION("SiS 5595 Sensor device");
+MODULE_LICENSE("GPL");
+
+module_init(sm_sis5595_init);
+module_exit(sm_sis5595_exit);
diff --git a/drivers/i2c/chips/smsc47b397.c b/drivers/i2c/chips/smsc47b397.c
new file mode 100644
index 0000000..1119c76
--- /dev/null
+++ b/drivers/i2c/chips/smsc47b397.c
@@ -0,0 +1,352 @@
+/*
+ smsc47b397.c - Part of lm_sensors, Linux kernel modules
+ for hardware monitoring
+
+ Supports the SMSC LPC47B397-NC Super-I/O chip.
+
+ Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com>
+ Copyright (C) 2004 Utilitek Systems, Inc.
+
+ derived in part from smsc47m1.c:
+ Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+ Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/init.h>
+#include <asm/io.h>
+
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+/* Address is autodetected, there is no default value */
+static unsigned int normal_isa[] = { 0x0000, I2C_CLIENT_ISA_END };
+static struct i2c_force_data forces[] = {{NULL}};
+
+enum chips { any_chip, smsc47b397 };
+static struct i2c_address_data addr_data = {
+ .normal_i2c = normal_i2c,
+ .normal_isa = normal_isa,
+ .probe = normal_i2c, /* cheat */
+ .ignore = normal_i2c, /* cheat */
+ .forces = forces,
+};
+
+/* Super-I/0 registers and commands */
+
+#define REG 0x2e /* The register to read/write */
+#define VAL 0x2f /* The value to read/write */
+
+static inline void superio_outb(int reg, int val)
+{
+ outb(reg, REG);
+ outb(val, VAL);
+}
+
+static inline int superio_inb(int reg)
+{
+ outb(reg, REG);
+ return inb(VAL);
+}
+
+/* select superio logical device */
+static inline void superio_select(int ld)
+{
+ superio_outb(0x07, ld);
+}
+
+static inline void superio_enter(void)
+{
+ outb(0x55, REG);
+}
+
+static inline void superio_exit(void)
+{
+ outb(0xAA, REG);
+}
+
+#define SUPERIO_REG_DEVID 0x20
+#define SUPERIO_REG_DEVREV 0x21
+#define SUPERIO_REG_BASE_MSB 0x60
+#define SUPERIO_REG_BASE_LSB 0x61
+#define SUPERIO_REG_LD8 0x08
+
+#define SMSC_EXTENT 0x02
+
+/* 0 <= nr <= 3 */
+static u8 smsc47b397_reg_temp[] = {0x25, 0x26, 0x27, 0x80};
+#define SMSC47B397_REG_TEMP(nr) (smsc47b397_reg_temp[(nr)])
+
+/* 0 <= nr <= 3 */
+#define SMSC47B397_REG_FAN_LSB(nr) (0x28 + 2 * (nr))
+#define SMSC47B397_REG_FAN_MSB(nr) (0x29 + 2 * (nr))
+
+struct smsc47b397_data {
+ struct i2c_client client;
+ struct semaphore lock;
+
+ struct semaphore update_lock;
+ unsigned long last_updated; /* in jiffies */
+ int valid;
+
+ /* register values */
+ u16 fan[4];
+ u8 temp[4];
+};
+
+static int smsc47b397_read_value(struct i2c_client *client, u8 reg)
+{
+ struct smsc47b397_data *data = i2c_get_clientdata(client);
+ int res;
+
+ down(&data->lock);
+ outb(reg, client->addr);
+ res = inb_p(client->addr + 1);
+ up(&data->lock);
+ return res;
+}
+
+static struct smsc47b397_data *smsc47b397_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct smsc47b397_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+ dev_dbg(&client->dev, "starting device update...\n");
+
+ /* 4 temperature inputs, 4 fan inputs */
+ for (i = 0; i < 4; i++) {
+ data->temp[i] = smsc47b397_read_value(client,
+ SMSC47B397_REG_TEMP(i));
+
+ /* must read LSB first */
+ data->fan[i] = smsc47b397_read_value(client,
+ SMSC47B397_REG_FAN_LSB(i));
+ data->fan[i] |= smsc47b397_read_value(client,
+ SMSC47B397_REG_FAN_MSB(i)) << 8;
+ }
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+
+ dev_dbg(&client->dev, "... device update complete\n");
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+/* TEMP: 0.001C/bit (-128C to +127C)
+ REG: 1C/bit, two's complement */
+static int temp_from_reg(u8 reg)
+{
+ return (s8)reg * 1000;
+}
+
+/* 0 <= nr <= 3 */
+static ssize_t show_temp(struct device *dev, char *buf, int nr)
+{
+ struct smsc47b397_data *data = smsc47b397_update_device(dev);
+ return sprintf(buf, "%d\n", temp_from_reg(data->temp[nr]));
+}
+
+#define sysfs_temp(num) \
+static ssize_t show_temp##num(struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, num-1); \
+} \
+static DEVICE_ATTR(temp##num##_input, S_IRUGO, show_temp##num, NULL)
+
+sysfs_temp(1);
+sysfs_temp(2);
+sysfs_temp(3);
+sysfs_temp(4);
+
+#define device_create_file_temp(client, num) \
+ device_create_file(&client->dev, &dev_attr_temp##num##_input)
+
+/* FAN: 1 RPM/bit
+ REG: count of 90kHz pulses / revolution */
+static int fan_from_reg(u16 reg)
+{
+ return 90000 * 60 / reg;
+}
+
+/* 0 <= nr <= 3 */
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+ struct smsc47b397_data *data = smsc47b397_update_device(dev);
+ return sprintf(buf, "%d\n", fan_from_reg(data->fan[nr]));
+}
+
+#define sysfs_fan(num) \
+static ssize_t show_fan##num(struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, num-1); \
+} \
+static DEVICE_ATTR(fan##num##_input, S_IRUGO, show_fan##num, NULL)
+
+sysfs_fan(1);
+sysfs_fan(2);
+sysfs_fan(3);
+sysfs_fan(4);
+
+#define device_create_file_fan(client, num) \
+ device_create_file(&client->dev, &dev_attr_fan##num##_input)
+
+static int smsc47b397_detect(struct i2c_adapter *adapter, int addr, int kind);
+
+static int smsc47b397_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, smsc47b397_detect);
+}
+
+static int smsc47b397_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ release_region(client->addr, SMSC_EXTENT);
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+static struct i2c_driver smsc47b397_driver = {
+ .owner = THIS_MODULE,
+ .name = "smsc47b397",
+ .id = I2C_DRIVERID_SMSC47B397,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = smsc47b397_attach_adapter,
+ .detach_client = smsc47b397_detach_client,
+};
+
+static int smsc47b397_detect(struct i2c_adapter *adapter, int addr, int kind)
+{
+ struct i2c_client *new_client;
+ struct smsc47b397_data *data;
+ int err = 0;
+
+ if (!i2c_is_isa_adapter(adapter)) {
+ return 0;
+ }
+
+ if (!request_region(addr, SMSC_EXTENT, smsc47b397_driver.name)) {
+ dev_err(&adapter->dev, "Region 0x%x already in use!\n", addr);
+ return -EBUSY;
+ }
+
+ if (!(data = kmalloc(sizeof(struct smsc47b397_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto error_release;
+ }
+ memset(data, 0x00, sizeof(struct smsc47b397_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = addr;
+ init_MUTEX(&data->lock);
+ new_client->adapter = adapter;
+ new_client->driver = &smsc47b397_driver;
+ new_client->flags = 0;
+
+ strlcpy(new_client->name, "smsc47b397", I2C_NAME_SIZE);
+
+ init_MUTEX(&data->update_lock);
+
+ if ((err = i2c_attach_client(new_client)))
+ goto error_free;
+
+ device_create_file_temp(new_client, 1);
+ device_create_file_temp(new_client, 2);
+ device_create_file_temp(new_client, 3);
+ device_create_file_temp(new_client, 4);
+
+ device_create_file_fan(new_client, 1);
+ device_create_file_fan(new_client, 2);
+ device_create_file_fan(new_client, 3);
+ device_create_file_fan(new_client, 4);
+
+ return 0;
+
+error_free:
+ kfree(new_client);
+error_release:
+ release_region(addr, SMSC_EXTENT);
+ return err;
+}
+
+static int __init smsc47b397_find(unsigned int *addr)
+{
+ u8 id, rev;
+
+ superio_enter();
+ id = superio_inb(SUPERIO_REG_DEVID);
+
+ if (id != 0x6f) {
+ superio_exit();
+ return -ENODEV;
+ }
+
+ rev = superio_inb(SUPERIO_REG_DEVREV);
+
+ superio_select(SUPERIO_REG_LD8);
+ *addr = (superio_inb(SUPERIO_REG_BASE_MSB) << 8)
+ | superio_inb(SUPERIO_REG_BASE_LSB);
+
+ printk(KERN_INFO "smsc47b397: found SMSC LPC47B397-NC "
+ "(base address 0x%04x, revision %u)\n", *addr, rev);
+
+ superio_exit();
+ return 0;
+}
+
+static int __init smsc47b397_init(void)
+{
+ int ret;
+
+ if ((ret = smsc47b397_find(normal_isa)))
+ return ret;
+
+ return i2c_add_driver(&smsc47b397_driver);
+}
+
+static void __exit smsc47b397_exit(void)
+{
+ i2c_del_driver(&smsc47b397_driver);
+}
+
+MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");
+MODULE_DESCRIPTION("SMSC LPC47B397 driver");
+MODULE_LICENSE("GPL");
+
+module_init(smsc47b397_init);
+module_exit(smsc47b397_exit);
diff --git a/drivers/i2c/chips/smsc47m1.c b/drivers/i2c/chips/smsc47m1.c
new file mode 100644
index 0000000..0e12ca3
--- /dev/null
+++ b/drivers/i2c/chips/smsc47m1.c
@@ -0,0 +1,591 @@
+/*
+ smsc47m1.c - Part of lm_sensors, Linux kernel modules
+ for hardware monitoring
+
+ Supports the SMSC LPC47B27x, LPC47M10x, LPC47M13x and LPC47M14x
+ Super-I/O chips.
+
+ Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+ Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+ Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
+ and Jean Delvare
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/init.h>
+#include <asm/io.h>
+
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+/* Address is autodetected, there is no default value */
+static unsigned int normal_isa[] = { 0x0000, I2C_CLIENT_ISA_END };
+static struct i2c_force_data forces[] = {{NULL}};
+
+enum chips { any_chip, smsc47m1 };
+static struct i2c_address_data addr_data = {
+ .normal_i2c = normal_i2c,
+ .normal_isa = normal_isa,
+ .forces = forces,
+};
+
+/* Super-I/0 registers and commands */
+
+#define REG 0x2e /* The register to read/write */
+#define VAL 0x2f /* The value to read/write */
+
+static inline void
+superio_outb(int reg, int val)
+{
+ outb(reg, REG);
+ outb(val, VAL);
+}
+
+static inline int
+superio_inb(int reg)
+{
+ outb(reg, REG);
+ return inb(VAL);
+}
+
+/* logical device for fans is 0x0A */
+#define superio_select() superio_outb(0x07, 0x0A)
+
+static inline void
+superio_enter(void)
+{
+ outb(0x55, REG);
+}
+
+static inline void
+superio_exit(void)
+{
+ outb(0xAA, REG);
+}
+
+#define SUPERIO_REG_ACT 0x30
+#define SUPERIO_REG_BASE 0x60
+#define SUPERIO_REG_DEVID 0x20
+
+/* Logical device registers */
+
+#define SMSC_EXTENT 0x80
+
+/* nr is 0 or 1 in the macros below */
+#define SMSC47M1_REG_ALARM 0x04
+#define SMSC47M1_REG_TPIN(nr) (0x34 - (nr))
+#define SMSC47M1_REG_PPIN(nr) (0x36 - (nr))
+#define SMSC47M1_REG_PWM(nr) (0x56 + (nr))
+#define SMSC47M1_REG_FANDIV 0x58
+#define SMSC47M1_REG_FAN(nr) (0x59 + (nr))
+#define SMSC47M1_REG_FAN_PRELOAD(nr) (0x5B + (nr))
+
+#define MIN_FROM_REG(reg,div) ((reg)>=192 ? 0 : \
+ 983040/((192-(reg))*(div)))
+#define FAN_FROM_REG(reg,div,preload) ((reg)<=(preload) || (reg)==255 ? 0 : \
+ 983040/(((reg)-(preload))*(div)))
+#define DIV_FROM_REG(reg) (1 << (reg))
+#define PWM_FROM_REG(reg) (((reg) & 0x7E) << 1)
+#define PWM_EN_FROM_REG(reg) ((~(reg)) & 0x01)
+#define PWM_TO_REG(reg) (((reg) >> 1) & 0x7E)
+
+struct smsc47m1_data {
+ struct i2c_client client;
+ struct semaphore lock;
+
+ struct semaphore update_lock;
+ unsigned long last_updated; /* In jiffies */
+
+ u8 fan[2]; /* Register value */
+ u8 fan_preload[2]; /* Register value */
+ u8 fan_div[2]; /* Register encoding, shifted right */
+ u8 alarms; /* Register encoding */
+ u8 pwm[2]; /* Register value (bit 7 is enable) */
+};
+
+
+static int smsc47m1_attach_adapter(struct i2c_adapter *adapter);
+static int smsc47m1_find(int *address);
+static int smsc47m1_detect(struct i2c_adapter *adapter, int address, int kind);
+static int smsc47m1_detach_client(struct i2c_client *client);
+
+static int smsc47m1_read_value(struct i2c_client *client, u8 reg);
+static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value);
+
+static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
+ int init);
+
+
+static struct i2c_driver smsc47m1_driver = {
+ .owner = THIS_MODULE,
+ .name = "smsc47m1",
+ .id = I2C_DRIVERID_SMSC47M1,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = smsc47m1_attach_adapter,
+ .detach_client = smsc47m1_detach_client,
+};
+
+/* nr is 0 or 1 in the callback functions below */
+
+static ssize_t get_fan(struct device *dev, char *buf, int nr)
+{
+ struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+ /* This chip (stupidly) stops monitoring fan speed if PWM is
+ enabled and duty cycle is 0%. This is fine if the monitoring
+ and control concern the same fan, but troublesome if they are
+ not (which could as well happen). */
+ int rpm = (data->pwm[nr] & 0x7F) == 0x00 ? 0 :
+ FAN_FROM_REG(data->fan[nr],
+ DIV_FROM_REG(data->fan_div[nr]),
+ data->fan_preload[nr]);
+ return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t get_fan_min(struct device *dev, char *buf, int nr)
+{
+ struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+ int rpm = MIN_FROM_REG(data->fan_preload[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+ return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t get_fan_div(struct device *dev, char *buf, int nr)
+{
+ struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+static ssize_t get_pwm(struct device *dev, char *buf, int nr)
+{
+ struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+ return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
+}
+
+static ssize_t get_pwm_en(struct device *dev, char *buf, int nr)
+{
+ struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+ return sprintf(buf, "%d\n", PWM_EN_FROM_REG(data->pwm[nr]));
+}
+
+static ssize_t get_alarms(struct device *dev, char *buf)
+{
+ struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+ return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct smsc47m1_data *data = i2c_get_clientdata(client);
+ long rpmdiv, val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ rpmdiv = val * DIV_FROM_REG(data->fan_div[nr]);
+
+ if (983040 > 192 * rpmdiv || 2 * rpmdiv > 983040) {
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ data->fan_preload[nr] = 192 - ((983040 + rpmdiv / 2) / rpmdiv);
+ smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
+ data->fan_preload[nr]);
+ up(&data->update_lock);
+
+ return count;
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan clock divider. This follows the principle
+ of least suprise; the user doesn't expect the fan minimum to change just
+ because the divider changed. */
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct smsc47m1_data *data = i2c_get_clientdata(client);
+
+ long new_div = simple_strtol(buf, NULL, 10), tmp;
+ u8 old_div = DIV_FROM_REG(data->fan_div[nr]);
+
+ if (new_div == old_div) /* No change */
+ return count;
+
+ down(&data->update_lock);
+ switch (new_div) {
+ case 1: data->fan_div[nr] = 0; break;
+ case 2: data->fan_div[nr] = 1; break;
+ case 4: data->fan_div[nr] = 2; break;
+ case 8: data->fan_div[nr] = 3; break;
+ default:
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ tmp = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV) & 0x0F;
+ tmp |= (data->fan_div[0] << 4) | (data->fan_div[1] << 6);
+ smsc47m1_write_value(client, SMSC47M1_REG_FANDIV, tmp);
+
+ /* Preserve fan min */
+ tmp = 192 - (old_div * (192 - data->fan_preload[nr])
+ + new_div / 2) / new_div;
+ data->fan_preload[nr] = SENSORS_LIMIT(tmp, 0, 191);
+ smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
+ data->fan_preload[nr]);
+ up(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t set_pwm(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct smsc47m1_data *data = i2c_get_clientdata(client);
+
+ long val = simple_strtol(buf, NULL, 10);
+
+ if (val < 0 || val > 255)
+ return -EINVAL;
+
+ down(&data->update_lock);
+ data->pwm[nr] &= 0x81; /* Preserve additional bits */
+ data->pwm[nr] |= PWM_TO_REG(val);
+ smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
+ data->pwm[nr]);
+ up(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t set_pwm_en(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct smsc47m1_data *data = i2c_get_clientdata(client);
+
+ long val = simple_strtol(buf, NULL, 10);
+
+ if (val != 0 && val != 1)
+ return -EINVAL;
+
+ down(&data->update_lock);
+ data->pwm[nr] &= 0xFE; /* preserve the other bits */
+ data->pwm[nr] |= !val;
+ smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
+ data->pwm[nr]);
+ up(&data->update_lock);
+
+ return count;
+}
+
+#define fan_present(offset) \
+static ssize_t get_fan##offset (struct device *dev, char *buf) \
+{ \
+ return get_fan(dev, buf, offset - 1); \
+} \
+static ssize_t get_fan##offset##_min (struct device *dev, char *buf) \
+{ \
+ return get_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t get_fan##offset##_div (struct device *dev, char *buf) \
+{ \
+ return get_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan##offset##_div (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, offset - 1); \
+} \
+static ssize_t get_pwm##offset (struct device *dev, char *buf) \
+{ \
+ return get_pwm(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm(dev, buf, count, offset - 1); \
+} \
+static ssize_t get_pwm##offset##_en (struct device *dev, char *buf) \
+{ \
+ return get_pwm_en(dev, buf, offset - 1); \
+} \
+static ssize_t set_pwm##offset##_en (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_pwm_en(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, get_fan##offset, \
+ NULL); \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ get_fan##offset##_min, set_fan##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ get_fan##offset##_div, set_fan##offset##_div); \
+static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
+ get_pwm##offset, set_pwm##offset); \
+static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
+ get_pwm##offset##_en, set_pwm##offset##_en);
+
+fan_present(1);
+fan_present(2);
+
+static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
+
+static int smsc47m1_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, smsc47m1_detect);
+}
+
+static int smsc47m1_find(int *address)
+{
+ u8 val;
+
+ superio_enter();
+ val = superio_inb(SUPERIO_REG_DEVID);
+
+ /*
+ * SMSC LPC47M10x/LPC47M13x (device id 0x59), LPC47M14x (device id
+ * 0x5F) and LPC47B27x (device id 0x51) have fan control.
+ * The LPC47M15x and LPC47M192 chips "with hardware monitoring block"
+ * can do much more besides (device id 0x60, unsupported).
+ */
+ if (val == 0x51)
+ printk(KERN_INFO "smsc47m1: Found SMSC47B27x\n");
+ else if (val == 0x59)
+ printk(KERN_INFO "smsc47m1: Found SMSC47M10x/SMSC47M13x\n");
+ else if (val == 0x5F)
+ printk(KERN_INFO "smsc47m1: Found SMSC47M14x\n");
+ else {
+ superio_exit();
+ return -ENODEV;
+ }
+
+ superio_select();
+ *address = (superio_inb(SUPERIO_REG_BASE) << 8)
+ | superio_inb(SUPERIO_REG_BASE + 1);
+ val = superio_inb(SUPERIO_REG_ACT);
+ if (*address == 0 || (val & 0x01) == 0) {
+ printk(KERN_INFO "smsc47m1: Device is disabled, will not use\n");
+ superio_exit();
+ return -ENODEV;
+ }
+
+ superio_exit();
+ return 0;
+}
+
+static int smsc47m1_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct smsc47m1_data *data;
+ int err = 0;
+ int fan1, fan2, pwm1, pwm2;
+
+ if (!i2c_is_isa_adapter(adapter)) {
+ return 0;
+ }
+
+ if (!request_region(address, SMSC_EXTENT, smsc47m1_driver.name)) {
+ dev_err(&adapter->dev, "Region 0x%x already in use!\n", address);
+ return -EBUSY;
+ }
+
+ if (!(data = kmalloc(sizeof(struct smsc47m1_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto error_release;
+ }
+ memset(data, 0x00, sizeof(struct smsc47m1_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ init_MUTEX(&data->lock);
+ new_client->adapter = adapter;
+ new_client->driver = &smsc47m1_driver;
+ new_client->flags = 0;
+
+ strlcpy(new_client->name, "smsc47m1", I2C_NAME_SIZE);
+ init_MUTEX(&data->update_lock);
+
+ /* If no function is properly configured, there's no point in
+ actually registering the chip. */
+ fan1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(0)) & 0x05)
+ == 0x05;
+ fan2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(1)) & 0x05)
+ == 0x05;
+ pwm1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(0)) & 0x05)
+ == 0x04;
+ pwm2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(1)) & 0x05)
+ == 0x04;
+ if (!(fan1 || fan2 || pwm1 || pwm2)) {
+ dev_warn(&new_client->dev, "Device is not configured, will not use\n");
+ err = -ENODEV;
+ goto error_free;
+ }
+
+ if ((err = i2c_attach_client(new_client)))
+ goto error_free;
+
+ /* Some values (fan min, clock dividers, pwm registers) may be
+ needed before any update is triggered, so we better read them
+ at least once here. We don't usually do it that way, but in
+ this particular case, manually reading 5 registers out of 8
+ doesn't make much sense and we're better using the existing
+ function. */
+ smsc47m1_update_device(&new_client->dev, 1);
+
+ if (fan1) {
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ } else
+ dev_dbg(&new_client->dev, "Fan 1 not enabled by hardware, "
+ "skipping\n");
+
+ if (fan2) {
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ } else
+ dev_dbg(&new_client->dev, "Fan 2 not enabled by hardware, "
+ "skipping\n");
+
+ if (pwm1) {
+ device_create_file(&new_client->dev, &dev_attr_pwm1);
+ device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+ } else
+ dev_dbg(&new_client->dev, "PWM 1 not enabled by hardware, "
+ "skipping\n");
+ if (pwm2) {
+ device_create_file(&new_client->dev, &dev_attr_pwm2);
+ device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
+ } else
+ dev_dbg(&new_client->dev, "PWM 2 not enabled by hardware, "
+ "skipping\n");
+
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+error_free:
+ kfree(new_client);
+error_release:
+ release_region(address, SMSC_EXTENT);
+ return err;
+}
+
+static int smsc47m1_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ release_region(client->addr, SMSC_EXTENT);
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+static int smsc47m1_read_value(struct i2c_client *client, u8 reg)
+{
+ int res;
+
+ down(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+ res = inb_p(client->addr + reg);
+ up(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+ return res;
+}
+
+static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ down(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+ outb_p(value, client->addr + reg);
+ up(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+}
+
+static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
+ int init)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct smsc47m1_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) {
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ data->fan[i] = smsc47m1_read_value(client,
+ SMSC47M1_REG_FAN(i));
+ data->fan_preload[i] = smsc47m1_read_value(client,
+ SMSC47M1_REG_FAN_PRELOAD(i));
+ data->pwm[i] = smsc47m1_read_value(client,
+ SMSC47M1_REG_PWM(i));
+ }
+
+ i = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV);
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = i >> 6;
+
+ data->alarms = smsc47m1_read_value(client,
+ SMSC47M1_REG_ALARM) >> 6;
+ /* Clear alarms if needed */
+ if (data->alarms)
+ smsc47m1_write_value(client, SMSC47M1_REG_ALARM, 0xC0);
+
+ data->last_updated = jiffies;
+ }
+
+ up(&data->update_lock);
+ return data;
+}
+
+static int __init sm_smsc47m1_init(void)
+{
+ if (smsc47m1_find(normal_isa)) {
+ return -ENODEV;
+ }
+
+ return i2c_add_driver(&smsc47m1_driver);
+}
+
+static void __exit sm_smsc47m1_exit(void)
+{
+ i2c_del_driver(&smsc47m1_driver);
+}
+
+MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("SMSC LPC47M1xx fan sensors driver");
+MODULE_LICENSE("GPL");
+
+module_init(sm_smsc47m1_init);
+module_exit(sm_smsc47m1_exit);
diff --git a/drivers/i2c/chips/via686a.c b/drivers/i2c/chips/via686a.c
new file mode 100644
index 0000000..9b948f4
--- /dev/null
+++ b/drivers/i2c/chips/via686a.c
@@ -0,0 +1,879 @@
+/*
+ via686a.c - Part of lm_sensors, Linux kernel modules
+ for hardware monitoring
+
+ Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>,
+ Kyösti Mälkki <kmalkki@cc.hut.fi>,
+ Mark Studebaker <mdsxyz123@yahoo.com>,
+ and Bob Dougherty <bobd@stanford.edu>
+ (Some conversion-factor data were contributed by Jonathan Teh Soon Yew
+ <j.teh@iname.com> and Alex van Kaam <darkside@chello.nl>.)
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ Supports the Via VT82C686A, VT82C686B south bridges.
+ Reports all as a 686A.
+ Warning - only supports a single device.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/init.h>
+#include <asm/io.h>
+
+
+/* If force_addr is set to anything different from 0, we forcibly enable
+ the device at the given address. */
+static unsigned short force_addr = 0;
+module_param(force_addr, ushort, 0);
+MODULE_PARM_DESC(force_addr,
+ "Initialize the base address of the sensors");
+
+/* Addresses to scan.
+ Note that we can't determine the ISA address until we have initialized
+ our module */
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+static unsigned int normal_isa[] = { 0x0000, I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(via686a);
+
+/*
+ The Via 686a southbridge has a LM78-like chip integrated on the same IC.
+ This driver is a customized copy of lm78.c
+*/
+
+/* Many VIA686A constants specified below */
+
+/* Length of ISA address segment */
+#define VIA686A_EXTENT 0x80
+#define VIA686A_BASE_REG 0x70
+#define VIA686A_ENABLE_REG 0x74
+
+/* The VIA686A registers */
+/* ins numbered 0-4 */
+#define VIA686A_REG_IN_MAX(nr) (0x2b + ((nr) * 2))
+#define VIA686A_REG_IN_MIN(nr) (0x2c + ((nr) * 2))
+#define VIA686A_REG_IN(nr) (0x22 + (nr))
+
+/* fans numbered 1-2 */
+#define VIA686A_REG_FAN_MIN(nr) (0x3a + (nr))
+#define VIA686A_REG_FAN(nr) (0x28 + (nr))
+
+/* the following values are as speced by VIA: */
+static const u8 regtemp[] = { 0x20, 0x21, 0x1f };
+static const u8 regover[] = { 0x39, 0x3d, 0x1d };
+static const u8 reghyst[] = { 0x3a, 0x3e, 0x1e };
+
+/* temps numbered 1-3 */
+#define VIA686A_REG_TEMP(nr) (regtemp[nr])
+#define VIA686A_REG_TEMP_OVER(nr) (regover[nr])
+#define VIA686A_REG_TEMP_HYST(nr) (reghyst[nr])
+#define VIA686A_REG_TEMP_LOW1 0x4b // bits 7-6
+#define VIA686A_REG_TEMP_LOW23 0x49 // 2 = bits 5-4, 3 = bits 7-6
+
+#define VIA686A_REG_ALARM1 0x41
+#define VIA686A_REG_ALARM2 0x42
+#define VIA686A_REG_FANDIV 0x47
+#define VIA686A_REG_CONFIG 0x40
+/* The following register sets temp interrupt mode (bits 1-0 for temp1,
+ 3-2 for temp2, 5-4 for temp3). Modes are:
+ 00 interrupt stays as long as value is out-of-range
+ 01 interrupt is cleared once register is read (default)
+ 10 comparator mode- like 00, but ignores hysteresis
+ 11 same as 00 */
+#define VIA686A_REG_TEMP_MODE 0x4b
+/* We'll just assume that you want to set all 3 simultaneously: */
+#define VIA686A_TEMP_MODE_MASK 0x3F
+#define VIA686A_TEMP_MODE_CONTINUOUS (0x00)
+
+/* Conversions. Limit checking is only done on the TO_REG
+ variants.
+
+********* VOLTAGE CONVERSIONS (Bob Dougherty) ********
+ From HWMon.cpp (Copyright 1998-2000 Jonathan Teh Soon Yew):
+ voltagefactor[0]=1.25/2628; (2628/1.25=2102.4) // Vccp
+ voltagefactor[1]=1.25/2628; (2628/1.25=2102.4) // +2.5V
+ voltagefactor[2]=1.67/2628; (2628/1.67=1573.7) // +3.3V
+ voltagefactor[3]=2.6/2628; (2628/2.60=1010.8) // +5V
+ voltagefactor[4]=6.3/2628; (2628/6.30=417.14) // +12V
+ in[i]=(data[i+2]*25.0+133)*voltagefactor[i];
+ That is:
+ volts = (25*regVal+133)*factor
+ regVal = (volts/factor-133)/25
+ (These conversions were contributed by Jonathan Teh Soon Yew
+ <j.teh@iname.com>) */
+static inline u8 IN_TO_REG(long val, int inNum)
+{
+ /* To avoid floating point, we multiply constants by 10 (100 for +12V).
+ Rounding is done (120500 is actually 133000 - 12500).
+ Remember that val is expressed in 0.001V/bit, which is why we divide
+ by an additional 10000 (100000 for +12V): 1000 for val and 10 (100)
+ for the constants. */
+ if (inNum <= 1)
+ return (u8)
+ SENSORS_LIMIT((val * 21024 - 1205000) / 250000, 0, 255);
+ else if (inNum == 2)
+ return (u8)
+ SENSORS_LIMIT((val * 15737 - 1205000) / 250000, 0, 255);
+ else if (inNum == 3)
+ return (u8)
+ SENSORS_LIMIT((val * 10108 - 1205000) / 250000, 0, 255);
+ else
+ return (u8)
+ SENSORS_LIMIT((val * 41714 - 12050000) / 2500000, 0, 255);
+}
+
+static inline long IN_FROM_REG(u8 val, int inNum)
+{
+ /* To avoid floating point, we multiply constants by 10 (100 for +12V).
+ We also multiply them by 1000 because we want 0.001V/bit for the
+ output value. Rounding is done. */
+ if (inNum <= 1)
+ return (long) ((250000 * val + 1330000 + 21024 / 2) / 21024);
+ else if (inNum == 2)
+ return (long) ((250000 * val + 1330000 + 15737 / 2) / 15737);
+ else if (inNum == 3)
+ return (long) ((250000 * val + 1330000 + 10108 / 2) / 10108);
+ else
+ return (long) ((2500000 * val + 13300000 + 41714 / 2) / 41714);
+}
+
+/********* FAN RPM CONVERSIONS ********/
+/* Higher register values = slower fans (the fan's strobe gates a counter).
+ But this chip saturates back at 0, not at 255 like all the other chips.
+ So, 0 means 0 RPM */
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+ if (rpm == 0)
+ return 0;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 255);
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?0:(val)==255?0:1350000/((val)*(div)))
+
+/******** TEMP CONVERSIONS (Bob Dougherty) *********/
+/* linear fits from HWMon.cpp (Copyright 1998-2000 Jonathan Teh Soon Yew)
+ if(temp<169)
+ return double(temp)*0.427-32.08;
+ else if(temp>=169 && temp<=202)
+ return double(temp)*0.582-58.16;
+ else
+ return double(temp)*0.924-127.33;
+
+ A fifth-order polynomial fits the unofficial data (provided by Alex van
+ Kaam <darkside@chello.nl>) a bit better. It also give more reasonable
+ numbers on my machine (ie. they agree with what my BIOS tells me).
+ Here's the fifth-order fit to the 8-bit data:
+ temp = 1.625093e-10*val^5 - 1.001632e-07*val^4 + 2.457653e-05*val^3 -
+ 2.967619e-03*val^2 + 2.175144e-01*val - 7.090067e+0.
+
+ (2000-10-25- RFD: thanks to Uwe Andersen <uandersen@mayah.com> for
+ finding my typos in this formula!)
+
+ Alas, none of the elegant function-fit solutions will work because we
+ aren't allowed to use floating point in the kernel and doing it with
+ integers doesn't rpovide enough precision. So we'll do boring old
+ look-up table stuff. The unofficial data (see below) have effectively
+ 7-bit resolution (they are rounded to the nearest degree). I'm assuming
+ that the transfer function of the device is monotonic and smooth, so a
+ smooth function fit to the data will allow us to get better precision.
+ I used the 5th-order poly fit described above and solved for
+ VIA register values 0-255. I *10 before rounding, so we get tenth-degree
+ precision. (I could have done all 1024 values for our 10-bit readings,
+ but the function is very linear in the useful range (0-80 deg C), so
+ we'll just use linear interpolation for 10-bit readings.) So, tempLUT
+ is the temp at via register values 0-255: */
+static const long tempLUT[] =
+ { -709, -688, -667, -646, -627, -607, -589, -570, -553, -536, -519,
+ -503, -487, -471, -456, -442, -428, -414, -400, -387, -375,
+ -362, -350, -339, -327, -316, -305, -295, -285, -275, -265,
+ -255, -246, -237, -229, -220, -212, -204, -196, -188, -180,
+ -173, -166, -159, -152, -145, -139, -132, -126, -120, -114,
+ -108, -102, -96, -91, -85, -80, -74, -69, -64, -59, -54, -49,
+ -44, -39, -34, -29, -25, -20, -15, -11, -6, -2, 3, 7, 12, 16,
+ 20, 25, 29, 33, 37, 42, 46, 50, 54, 59, 63, 67, 71, 75, 79, 84,
+ 88, 92, 96, 100, 104, 109, 113, 117, 121, 125, 130, 134, 138,
+ 142, 146, 151, 155, 159, 163, 168, 172, 176, 181, 185, 189,
+ 193, 198, 202, 206, 211, 215, 219, 224, 228, 232, 237, 241,
+ 245, 250, 254, 259, 263, 267, 272, 276, 281, 285, 290, 294,
+ 299, 303, 307, 312, 316, 321, 325, 330, 334, 339, 344, 348,
+ 353, 357, 362, 366, 371, 376, 380, 385, 390, 395, 399, 404,
+ 409, 414, 419, 423, 428, 433, 438, 443, 449, 454, 459, 464,
+ 469, 475, 480, 486, 491, 497, 502, 508, 514, 520, 526, 532,
+ 538, 544, 551, 557, 564, 571, 578, 584, 592, 599, 606, 614,
+ 621, 629, 637, 645, 654, 662, 671, 680, 689, 698, 708, 718,
+ 728, 738, 749, 759, 770, 782, 793, 805, 818, 830, 843, 856,
+ 870, 883, 898, 912, 927, 943, 958, 975, 991, 1008, 1026, 1044,
+ 1062, 1081, 1101, 1121, 1141, 1162, 1184, 1206, 1229, 1252,
+ 1276, 1301, 1326, 1352, 1378, 1406, 1434, 1462
+};
+
+/* the original LUT values from Alex van Kaam <darkside@chello.nl>
+ (for via register values 12-240):
+{-50,-49,-47,-45,-43,-41,-39,-38,-37,-35,-34,-33,-32,-31,
+-30,-29,-28,-27,-26,-25,-24,-24,-23,-22,-21,-20,-20,-19,-18,-17,-17,-16,-15,
+-15,-14,-14,-13,-12,-12,-11,-11,-10,-9,-9,-8,-8,-7,-7,-6,-6,-5,-5,-4,-4,-3,
+-3,-2,-2,-1,-1,0,0,1,1,1,3,3,3,4,4,4,5,5,5,6,6,7,7,8,8,9,9,9,10,10,11,11,12,
+12,12,13,13,13,14,14,15,15,16,16,16,17,17,18,18,19,19,20,20,21,21,21,22,22,
+22,23,23,24,24,25,25,26,26,26,27,27,27,28,28,29,29,30,30,30,31,31,32,32,33,
+33,34,34,35,35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,43,43,44,44,45,
+45,46,46,47,48,48,49,49,50,51,51,52,52,53,53,54,55,55,56,57,57,58,59,59,60,
+61,62,62,63,64,65,66,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,83,84,
+85,86,88,89,91,92,94,96,97,99,101,103,105,107,109,110};
+
+
+ Here's the reverse LUT. I got it by doing a 6-th order poly fit (needed
+ an extra term for a good fit to these inverse data!) and then
+ solving for each temp value from -50 to 110 (the useable range for
+ this chip). Here's the fit:
+ viaRegVal = -1.160370e-10*val^6 +3.193693e-08*val^5 - 1.464447e-06*val^4
+ - 2.525453e-04*val^3 + 1.424593e-02*val^2 + 2.148941e+00*val +7.275808e+01)
+ Note that n=161: */
+static const u8 viaLUT[] =
+ { 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18, 19, 20, 20, 21, 22, 23,
+ 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 39, 40,
+ 41, 43, 45, 46, 48, 49, 51, 53, 55, 57, 59, 60, 62, 64, 66,
+ 69, 71, 73, 75, 77, 79, 82, 84, 86, 88, 91, 93, 95, 98, 100,
+ 103, 105, 107, 110, 112, 115, 117, 119, 122, 124, 126, 129,
+ 131, 134, 136, 138, 140, 143, 145, 147, 150, 152, 154, 156,
+ 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180,
+ 182, 183, 185, 187, 188, 190, 192, 193, 195, 196, 198, 199,
+ 200, 202, 203, 205, 206, 207, 208, 209, 210, 211, 212, 213,
+ 214, 215, 216, 217, 218, 219, 220, 221, 222, 222, 223, 224,
+ 225, 226, 226, 227, 228, 228, 229, 230, 230, 231, 232, 232,
+ 233, 233, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239,
+ 239, 240
+};
+
+/* Converting temps to (8-bit) hyst and over registers
+ No interpolation here.
+ The +50 is because the temps start at -50 */
+static inline u8 TEMP_TO_REG(long val)
+{
+ return viaLUT[val <= -50000 ? 0 : val >= 110000 ? 160 :
+ (val < 0 ? val - 500 : val + 500) / 1000 + 50];
+}
+
+/* for 8-bit temperature hyst and over registers */
+#define TEMP_FROM_REG(val) (tempLUT[(val)] * 100)
+
+/* for 10-bit temperature readings */
+static inline long TEMP_FROM_REG10(u16 val)
+{
+ u16 eightBits = val >> 2;
+ u16 twoBits = val & 3;
+
+ /* no interpolation for these */
+ if (twoBits == 0 || eightBits == 255)
+ return TEMP_FROM_REG(eightBits);
+
+ /* do some linear interpolation */
+ return (tempLUT[eightBits] * (4 - twoBits) +
+ tempLUT[eightBits + 1] * twoBits) * 25;
+}
+
+#define ALARMS_FROM_REG(val) (val)
+
+#define DIV_FROM_REG(val) (1 << (val))
+#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)
+
+/* For the VIA686A, we need to keep some data in memory.
+ The structure is dynamically allocated, at the same time when a new
+ via686a client is allocated. */
+struct via686a_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ u8 in[5]; /* Register value */
+ u8 in_max[5]; /* Register value */
+ u8 in_min[5]; /* Register value */
+ u8 fan[2]; /* Register value */
+ u8 fan_min[2]; /* Register value */
+ u16 temp[3]; /* Register value 10 bit */
+ u8 temp_over[3]; /* Register value */
+ u8 temp_hyst[3]; /* Register value */
+ u8 fan_div[2]; /* Register encoding, shifted right */
+ u16 alarms; /* Register encoding, combined */
+};
+
+static struct pci_dev *s_bridge; /* pointer to the (only) via686a */
+
+static int via686a_attach_adapter(struct i2c_adapter *adapter);
+static int via686a_detect(struct i2c_adapter *adapter, int address, int kind);
+static int via686a_detach_client(struct i2c_client *client);
+
+static inline int via686a_read_value(struct i2c_client *client, u8 reg)
+{
+ return (inb_p(client->addr + reg));
+}
+
+static inline void via686a_write_value(struct i2c_client *client, u8 reg,
+ u8 value)
+{
+ outb_p(value, client->addr + reg);
+}
+
+static struct via686a_data *via686a_update_device(struct device *dev);
+static void via686a_init_client(struct i2c_client *client);
+
+/* following are the sysfs callback functions */
+
+/* 7 voltage sensors */
+static ssize_t show_in(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf, "%ld\n", IN_FROM_REG(data->in[nr], nr));
+}
+
+static ssize_t show_in_min(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf, "%ld\n", IN_FROM_REG(data->in_min[nr], nr));
+}
+
+static ssize_t show_in_max(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf, "%ld\n", IN_FROM_REG(data->in_max[nr], nr));
+}
+
+static ssize_t set_in_min(struct device *dev, const char *buf,
+ size_t count, int nr) {
+ struct i2c_client *client = to_i2c_client(dev);
+ struct via686a_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_min[nr] = IN_TO_REG(val,nr);
+ via686a_write_value(client, VIA686A_REG_IN_MIN(nr),
+ data->in_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_in_max(struct device *dev, const char *buf,
+ size_t count, int nr) {
+ struct i2c_client *client = to_i2c_client(dev);
+ struct via686a_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->in_max[nr] = IN_TO_REG(val,nr);
+ via686a_write_value(client, VIA686A_REG_IN_MAX(nr),
+ data->in_max[nr]);
+ up(&data->update_lock);
+ return count;
+}
+#define show_in_offset(offset) \
+static ssize_t \
+ show_in##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static ssize_t \
+ show_in##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_in_min(dev, buf, offset); \
+} \
+static ssize_t \
+ show_in##offset##_max (struct device *dev, char *buf) \
+{ \
+ return show_in_max(dev, buf, offset); \
+} \
+static ssize_t set_in##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_min(dev, buf, count, offset); \
+} \
+static ssize_t set_in##offset##_max (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_in_max(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL);\
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+ show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+ show_in##offset##_max, set_in##offset##_max);
+
+show_in_offset(0);
+show_in_offset(1);
+show_in_offset(2);
+show_in_offset(3);
+show_in_offset(4);
+
+/* 3 temperatures */
+static ssize_t show_temp(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf, "%ld\n", TEMP_FROM_REG10(data->temp[nr]));
+}
+static ssize_t show_temp_over(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp_over[nr]));
+}
+static ssize_t show_temp_hyst(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp_hyst[nr]));
+}
+static ssize_t set_temp_over(struct device *dev, const char *buf,
+ size_t count, int nr) {
+ struct i2c_client *client = to_i2c_client(dev);
+ struct via686a_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_over[nr] = TEMP_TO_REG(val);
+ via686a_write_value(client, VIA686A_REG_TEMP_OVER(nr), data->temp_over[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_temp_hyst(struct device *dev, const char *buf,
+ size_t count, int nr) {
+ struct i2c_client *client = to_i2c_client(dev);
+ struct via686a_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->temp_hyst[nr] = TEMP_TO_REG(val);
+ via686a_write_value(client, VIA686A_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
+ up(&data->update_lock);
+ return count;
+}
+#define show_temp_offset(offset) \
+static ssize_t show_temp_##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, offset - 1); \
+} \
+static ssize_t \
+show_temp_##offset##_over (struct device *dev, char *buf) \
+{ \
+ return show_temp_over(dev, buf, offset - 1); \
+} \
+static ssize_t \
+show_temp_##offset##_hyst (struct device *dev, char *buf) \
+{ \
+ return show_temp_hyst(dev, buf, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_over (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_over(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_temp_##offset##_hyst (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_temp_hyst(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, NULL);\
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_over, set_temp_##offset##_over); \
+static DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \
+ show_temp_##offset##_hyst, set_temp_##offset##_hyst);
+
+show_temp_offset(1);
+show_temp_offset(2);
+show_temp_offset(3);
+
+/* 2 Fans */
+static ssize_t show_fan(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
+ DIV_FROM_REG(data->fan_div[nr])) );
+}
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf,"%d\n",
+ FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])) );
+}
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf,"%d\n", DIV_FROM_REG(data->fan_div[nr]) );
+}
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+ size_t count, int nr) {
+ struct i2c_client *client = to_i2c_client(dev);
+ struct via686a_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+ via686a_write_value(client, VIA686A_REG_FAN_MIN(nr+1), data->fan_min[nr]);
+ up(&data->update_lock);
+ return count;
+}
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+ size_t count, int nr) {
+ struct i2c_client *client = to_i2c_client(dev);
+ struct via686a_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+ int old;
+
+ down(&data->update_lock);
+ old = via686a_read_value(client, VIA686A_REG_FANDIV);
+ data->fan_div[nr] = DIV_TO_REG(val);
+ old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4);
+ via686a_write_value(client, VIA686A_REG_FANDIV, old);
+ up(&data->update_lock);
+ return count;
+}
+
+#define show_fan_offset(offset) \
+static ssize_t show_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset - 1); \
+} \
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
+{ \
+ return show_fan_div(dev, buf, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_min (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_min(dev, buf, count, offset - 1); \
+} \
+static ssize_t set_fan_##offset##_div (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_fan_div(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);\
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_min, set_fan_##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ show_fan_##offset##_div, set_fan_##offset##_div);
+
+show_fan_offset(1);
+show_fan_offset(2);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, char *buf) {
+ struct via686a_data *data = via686a_update_device(dev);
+ return sprintf(buf,"%d\n", ALARMS_FROM_REG(data->alarms));
+}
+static DEVICE_ATTR(alarms, S_IRUGO | S_IWUSR, show_alarms, NULL);
+
+/* The driver. I choose to use type i2c_driver, as at is identical to both
+ smbus_driver and isa_driver, and clients could be of either kind */
+static struct i2c_driver via686a_driver = {
+ .owner = THIS_MODULE,
+ .name = "via686a",
+ .id = I2C_DRIVERID_VIA686A,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = via686a_attach_adapter,
+ .detach_client = via686a_detach_client,
+};
+
+
+/* This is called when the module is loaded */
+static int via686a_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, via686a_detect);
+}
+
+static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct via686a_data *data;
+ int err = 0;
+ const char client_name[] = "via686a";
+ u16 val;
+
+ /* Make sure we are probing the ISA bus!! */
+ if (!i2c_is_isa_adapter(adapter)) {
+ dev_err(&adapter->dev,
+ "via686a_detect called for an I2C bus adapter?!?\n");
+ return 0;
+ }
+
+ /* 8231 requires multiple of 256, we enforce that on 686 as well */
+ if(force_addr)
+ address = force_addr & 0xFF00;
+
+ if(force_addr) {
+ dev_warn(&adapter->dev,"forcing ISA address 0x%04X\n", address);
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_write_config_word(s_bridge, VIA686A_BASE_REG, address))
+ return -ENODEV;
+ }
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_read_config_word(s_bridge, VIA686A_ENABLE_REG, &val))
+ return -ENODEV;
+ if (!(val & 0x0001)) {
+ dev_warn(&adapter->dev,"enabling sensors\n");
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_write_config_word(s_bridge, VIA686A_ENABLE_REG,
+ val | 0x0001))
+ return -ENODEV;
+ }
+
+ /* Reserve the ISA region */
+ if (!request_region(address, VIA686A_EXTENT, via686a_driver.name)) {
+ dev_err(&adapter->dev,"region 0x%x already in use!\n",
+ address);
+ return -ENODEV;
+ }
+
+ if (!(data = kmalloc(sizeof(struct via686a_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto ERROR0;
+ }
+ memset(data, 0, sizeof(struct via686a_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &via686a_driver;
+ new_client->flags = 0;
+ new_client->dev.parent = &adapter->dev;
+
+ /* Fill in the remaining client fields and put into the global list */
+ snprintf(new_client->name, I2C_NAME_SIZE, client_name);
+
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR3;
+
+ /* Initialize the VIA686A chip */
+ via686a_init_client(new_client);
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_in0_input);
+ device_create_file(&new_client->dev, &dev_attr_in1_input);
+ device_create_file(&new_client->dev, &dev_attr_in2_input);
+ device_create_file(&new_client->dev, &dev_attr_in3_input);
+ device_create_file(&new_client->dev, &dev_attr_in4_input);
+ device_create_file(&new_client->dev, &dev_attr_in0_min);
+ device_create_file(&new_client->dev, &dev_attr_in1_min);
+ device_create_file(&new_client->dev, &dev_attr_in2_min);
+ device_create_file(&new_client->dev, &dev_attr_in3_min);
+ device_create_file(&new_client->dev, &dev_attr_in4_min);
+ device_create_file(&new_client->dev, &dev_attr_in0_max);
+ device_create_file(&new_client->dev, &dev_attr_in1_max);
+ device_create_file(&new_client->dev, &dev_attr_in2_max);
+ device_create_file(&new_client->dev, &dev_attr_in3_max);
+ device_create_file(&new_client->dev, &dev_attr_in4_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp2_input);
+ device_create_file(&new_client->dev, &dev_attr_temp3_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp2_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_temp3_max_hyst);
+ device_create_file(&new_client->dev, &dev_attr_fan1_input);
+ device_create_file(&new_client->dev, &dev_attr_fan2_input);
+ device_create_file(&new_client->dev, &dev_attr_fan1_min);
+ device_create_file(&new_client->dev, &dev_attr_fan2_min);
+ device_create_file(&new_client->dev, &dev_attr_fan1_div);
+ device_create_file(&new_client->dev, &dev_attr_fan2_div);
+ device_create_file(&new_client->dev, &dev_attr_alarms);
+
+ return 0;
+
+ ERROR3:
+ kfree(data);
+ ERROR0:
+ release_region(address, VIA686A_EXTENT);
+ return err;
+}
+
+static int via686a_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ release_region(client->addr, VIA686A_EXTENT);
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+/* Called when we have found a new VIA686A. Set limits, etc. */
+static void via686a_init_client(struct i2c_client *client)
+{
+ u8 reg;
+
+ /* Start monitoring */
+ reg = via686a_read_value(client, VIA686A_REG_CONFIG);
+ via686a_write_value(client, VIA686A_REG_CONFIG, (reg|0x01)&0x7F);
+
+ /* Configure temp interrupt mode for continuous-interrupt operation */
+ via686a_write_value(client, VIA686A_REG_TEMP_MODE,
+ via686a_read_value(client, VIA686A_REG_TEMP_MODE) &
+ !(VIA686A_TEMP_MODE_MASK | VIA686A_TEMP_MODE_CONTINUOUS));
+}
+
+static struct via686a_data *via686a_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct via686a_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ for (i = 0; i <= 4; i++) {
+ data->in[i] =
+ via686a_read_value(client, VIA686A_REG_IN(i));
+ data->in_min[i] = via686a_read_value(client,
+ VIA686A_REG_IN_MIN
+ (i));
+ data->in_max[i] =
+ via686a_read_value(client, VIA686A_REG_IN_MAX(i));
+ }
+ for (i = 1; i <= 2; i++) {
+ data->fan[i - 1] =
+ via686a_read_value(client, VIA686A_REG_FAN(i));
+ data->fan_min[i - 1] = via686a_read_value(client,
+ VIA686A_REG_FAN_MIN(i));
+ }
+ for (i = 0; i <= 2; i++) {
+ data->temp[i] = via686a_read_value(client,
+ VIA686A_REG_TEMP(i)) << 2;
+ data->temp_over[i] =
+ via686a_read_value(client,
+ VIA686A_REG_TEMP_OVER(i));
+ data->temp_hyst[i] =
+ via686a_read_value(client,
+ VIA686A_REG_TEMP_HYST(i));
+ }
+ /* add in lower 2 bits
+ temp1 uses bits 7-6 of VIA686A_REG_TEMP_LOW1
+ temp2 uses bits 5-4 of VIA686A_REG_TEMP_LOW23
+ temp3 uses bits 7-6 of VIA686A_REG_TEMP_LOW23
+ */
+ data->temp[0] |= (via686a_read_value(client,
+ VIA686A_REG_TEMP_LOW1)
+ & 0xc0) >> 6;
+ data->temp[1] |=
+ (via686a_read_value(client, VIA686A_REG_TEMP_LOW23) &
+ 0x30) >> 4;
+ data->temp[2] |=
+ (via686a_read_value(client, VIA686A_REG_TEMP_LOW23) &
+ 0xc0) >> 6;
+
+ i = via686a_read_value(client, VIA686A_REG_FANDIV);
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = i >> 6;
+ data->alarms =
+ via686a_read_value(client,
+ VIA686A_REG_ALARM1) |
+ (via686a_read_value(client, VIA686A_REG_ALARM2) << 8);
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static struct pci_device_id via686a_pci_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, via686a_pci_ids);
+
+static int __devinit via686a_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ u16 val;
+ int addr = 0;
+
+ if (PCIBIOS_SUCCESSFUL !=
+ pci_read_config_word(dev, VIA686A_BASE_REG, &val))
+ return -ENODEV;
+
+ addr = val & ~(VIA686A_EXTENT - 1);
+ if (addr == 0 && force_addr == 0) {
+ dev_err(&dev->dev,"base address not set - upgrade BIOS or use force_addr=0xaddr\n");
+ return -ENODEV;
+ }
+ if (force_addr)
+ addr = force_addr; /* so detect will get called */
+
+ if (!addr) {
+ dev_err(&dev->dev,"No Via 686A sensors found.\n");
+ return -ENODEV;
+ }
+ normal_isa[0] = addr;
+
+ s_bridge = pci_dev_get(dev);
+ if (i2c_add_driver(&via686a_driver)) {
+ pci_dev_put(s_bridge);
+ s_bridge = NULL;
+ }
+
+ /* Always return failure here. This is to allow other drivers to bind
+ * to this pci device. We don't really want to have control over the
+ * pci device, we only wanted to read as few register values from it.
+ */
+ return -ENODEV;
+}
+
+static struct pci_driver via686a_pci_driver = {
+ .name = "via686a",
+ .id_table = via686a_pci_ids,
+ .probe = via686a_pci_probe,
+};
+
+static int __init sm_via686a_init(void)
+{
+ return pci_register_driver(&via686a_pci_driver);
+}
+
+static void __exit sm_via686a_exit(void)
+{
+ pci_unregister_driver(&via686a_pci_driver);
+ if (s_bridge != NULL) {
+ i2c_del_driver(&via686a_driver);
+ pci_dev_put(s_bridge);
+ s_bridge = NULL;
+ }
+}
+
+MODULE_AUTHOR("Kyösti Mälkki <kmalkki@cc.hut.fi>, "
+ "Mark Studebaker <mdsxyz123@yahoo.com> "
+ "and Bob Dougherty <bobd@stanford.edu>");
+MODULE_DESCRIPTION("VIA 686A Sensor device");
+MODULE_LICENSE("GPL");
+
+module_init(sm_via686a_init);
+module_exit(sm_via686a_exit);
diff --git a/drivers/i2c/chips/w83627hf.c b/drivers/i2c/chips/w83627hf.c
new file mode 100644
index 0000000..b1da5ed
--- /dev/null
+++ b/drivers/i2c/chips/w83627hf.c
@@ -0,0 +1,1511 @@
+/*
+ w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
+ Philip Edelbrock <phil@netroedge.com>,
+ and Mark Studebaker <mdsxyz123@yahoo.com>
+ Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ Supports following chips:
+
+ Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ w83627hf 9 3 2 3 0x20 0x5ca3 no yes(LPC)
+ w83627thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
+ w83637hf 7 3 3 3 0x80 0x5ca3 no yes(LPC)
+ w83697hf 8 2 2 2 0x60 0x5ca3 no yes(LPC)
+
+ For other winbond chips, and for i2c support in the above chips,
+ use w83781d.c.
+
+ Note: automatic ("cruise") fan control for 697, 637 & 627thf not
+ supported yet.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+#include <asm/io.h>
+#include "lm75.h"
+
+static u16 force_addr;
+module_param(force_addr, ushort, 0);
+MODULE_PARM_DESC(force_addr,
+ "Initialize the base address of the sensors");
+static u8 force_i2c = 0x1f;
+module_param(force_i2c, byte, 0);
+MODULE_PARM_DESC(force_i2c,
+ "Initialize the i2c address of the sensors");
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+static unsigned int normal_isa[] = { 0, I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_4(w83627hf, w83627thf, w83697hf, w83637hf);
+
+static int init = 1;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
+
+/* modified from kernel/include/traps.c */
+static int REG; /* The register to read/write */
+#define DEV 0x07 /* Register: Logical device select */
+static int VAL; /* The value to read/write */
+
+/* logical device numbers for superio_select (below) */
+#define W83627HF_LD_FDC 0x00
+#define W83627HF_LD_PRT 0x01
+#define W83627HF_LD_UART1 0x02
+#define W83627HF_LD_UART2 0x03
+#define W83627HF_LD_KBC 0x05
+#define W83627HF_LD_CIR 0x06 /* w83627hf only */
+#define W83627HF_LD_GAME 0x07
+#define W83627HF_LD_MIDI 0x07
+#define W83627HF_LD_GPIO1 0x07
+#define W83627HF_LD_GPIO5 0x07 /* w83627thf only */
+#define W83627HF_LD_GPIO2 0x08
+#define W83627HF_LD_GPIO3 0x09
+#define W83627HF_LD_GPIO4 0x09 /* w83627thf only */
+#define W83627HF_LD_ACPI 0x0a
+#define W83627HF_LD_HWM 0x0b
+
+#define DEVID 0x20 /* Register: Device ID */
+
+#define W83627THF_GPIO5_EN 0x30 /* w83627thf only */
+#define W83627THF_GPIO5_IOSR 0xf3 /* w83627thf only */
+#define W83627THF_GPIO5_DR 0xf4 /* w83627thf only */
+
+static inline void
+superio_outb(int reg, int val)
+{
+ outb(reg, REG);
+ outb(val, VAL);
+}
+
+static inline int
+superio_inb(int reg)
+{
+ outb(reg, REG);
+ return inb(VAL);
+}
+
+static inline void
+superio_select(int ld)
+{
+ outb(DEV, REG);
+ outb(ld, VAL);
+}
+
+static inline void
+superio_enter(void)
+{
+ outb(0x87, REG);
+ outb(0x87, REG);
+}
+
+static inline void
+superio_exit(void)
+{
+ outb(0xAA, REG);
+}
+
+#define W627_DEVID 0x52
+#define W627THF_DEVID 0x82
+#define W697_DEVID 0x60
+#define W637_DEVID 0x70
+#define WINB_ACT_REG 0x30
+#define WINB_BASE_REG 0x60
+/* Constants specified below */
+
+/* Length of ISA address segment */
+#define WINB_EXTENT 8
+
+/* Where are the ISA address/data registers relative to the base address */
+#define W83781D_ADDR_REG_OFFSET 5
+#define W83781D_DATA_REG_OFFSET 6
+
+/* The W83781D registers */
+/* The W83782D registers for nr=7,8 are in bank 5 */
+#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
+ (0x554 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
+ (0x555 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
+ (0x550 + (nr) - 7))
+
+#define W83781D_REG_FAN_MIN(nr) (0x3a + (nr))
+#define W83781D_REG_FAN(nr) (0x27 + (nr))
+
+#define W83781D_REG_TEMP2_CONFIG 0x152
+#define W83781D_REG_TEMP3_CONFIG 0x252
+#define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \
+ ((nr == 2) ? (0x0150) : \
+ (0x27)))
+#define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \
+ ((nr == 2) ? (0x153) : \
+ (0x3A)))
+#define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \
+ ((nr == 2) ? (0x155) : \
+ (0x39)))
+
+#define W83781D_REG_BANK 0x4E
+
+#define W83781D_REG_CONFIG 0x40
+#define W83781D_REG_ALARM1 0x41
+#define W83781D_REG_ALARM2 0x42
+#define W83781D_REG_ALARM3 0x450
+
+#define W83781D_REG_IRQ 0x4C
+#define W83781D_REG_BEEP_CONFIG 0x4D
+#define W83781D_REG_BEEP_INTS1 0x56
+#define W83781D_REG_BEEP_INTS2 0x57
+#define W83781D_REG_BEEP_INTS3 0x453
+
+#define W83781D_REG_VID_FANDIV 0x47
+
+#define W83781D_REG_CHIPID 0x49
+#define W83781D_REG_WCHIPID 0x58
+#define W83781D_REG_CHIPMAN 0x4F
+#define W83781D_REG_PIN 0x4B
+
+#define W83781D_REG_VBAT 0x5D
+
+#define W83627HF_REG_PWM1 0x5A
+#define W83627HF_REG_PWM2 0x5B
+#define W83627HF_REG_PWMCLK12 0x5C
+
+#define W83627THF_REG_PWM1 0x01 /* 697HF and 637HF too */
+#define W83627THF_REG_PWM2 0x03 /* 697HF and 637HF too */
+#define W83627THF_REG_PWM3 0x11 /* 637HF too */
+
+#define W83627THF_REG_VRM_OVT_CFG 0x18 /* 637HF too */
+
+static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
+static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
+ W83627THF_REG_PWM3 };
+#define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
+ regpwm_627hf[(nr) - 1] : regpwm[(nr) - 1])
+
+#define W83781D_REG_I2C_ADDR 0x48
+#define W83781D_REG_I2C_SUBADDR 0x4A
+
+/* Sensor selection */
+#define W83781D_REG_SCFG1 0x5D
+static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
+#define W83781D_REG_SCFG2 0x59
+static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
+#define W83781D_DEFAULT_BETA 3435
+
+/* Conversions. Limit checking is only done on the TO_REG
+ variants. Note that you should be a bit careful with which arguments
+ these macros are called: arguments may be evaluated more than once.
+ Fixing this is just not worth it. */
+#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))
+#define IN_FROM_REG(val) ((val) * 16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+ if (rpm == 0)
+ return 255;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
+ 254);
+}
+
+#define TEMP_MIN (-128000)
+#define TEMP_MAX ( 127000)
+
+/* TEMP: 0.001C/bit (-128C to +127C)
+ REG: 1C/bit, two's complement */
+static u8 TEMP_TO_REG(int temp)
+{
+ int ntemp = SENSORS_LIMIT(temp, TEMP_MIN, TEMP_MAX);
+ ntemp += (ntemp<0 ? -500 : 500);
+ return (u8)(ntemp / 1000);
+}
+
+static int TEMP_FROM_REG(u8 reg)
+{
+ return (s8)reg * 1000;
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
+
+#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
+
+#define BEEP_MASK_FROM_REG(val) (val)
+#define BEEP_MASK_TO_REG(val) ((val) & 0xffffff)
+#define BEEP_ENABLE_TO_REG(val) ((val)?1:0)
+#define BEEP_ENABLE_FROM_REG(val) ((val)?1:0)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+static inline u8 DIV_TO_REG(long val)
+{
+ int i;
+ val = SENSORS_LIMIT(val, 1, 128) >> 1;
+ for (i = 0; i < 6; i++) {
+ if (val == 0)
+ break;
+ val >>= 1;
+ }
+ return ((u8) i);
+}
+
+/* For each registered chip, we need to keep some data in memory. That
+ data is pointed to by w83627hf_list[NR]->data. The structure itself is
+ dynamically allocated, at the same time when a new client is allocated. */
+struct w83627hf_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ enum chips type;
+
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ struct i2c_client *lm75; /* for secondary I2C addresses */
+ /* pointer to array of 2 subclients */
+
+ u8 in[9]; /* Register value */
+ u8 in_max[9]; /* Register value */
+ u8 in_min[9]; /* Register value */
+ u8 fan[3]; /* Register value */
+ u8 fan_min[3]; /* Register value */
+ u8 temp;
+ u8 temp_max; /* Register value */
+ u8 temp_max_hyst; /* Register value */
+ u16 temp_add[2]; /* Register value */
+ u16 temp_max_add[2]; /* Register value */
+ u16 temp_max_hyst_add[2]; /* Register value */
+ u8 fan_div[3]; /* Register encoding, shifted right */
+ u8 vid; /* Register encoding, combined */
+ u32 alarms; /* Register encoding, combined */
+ u32 beep_mask; /* Register encoding, combined */
+ u8 beep_enable; /* Boolean */
+ u8 pwm[3]; /* Register value */
+ u16 sens[3]; /* 782D/783S only.
+ 1 = pentium diode; 2 = 3904 diode;
+ 3000-5000 = thermistor beta.
+ Default = 3435.
+ Other Betas unimplemented */
+ u8 vrm;
+ u8 vrm_ovt; /* Register value, 627thf & 637hf only */
+};
+
+
+static int w83627hf_attach_adapter(struct i2c_adapter *adapter);
+static int w83627hf_detect(struct i2c_adapter *adapter, int address,
+ int kind);
+static int w83627hf_detach_client(struct i2c_client *client);
+
+static int w83627hf_read_value(struct i2c_client *client, u16 register);
+static int w83627hf_write_value(struct i2c_client *client, u16 register,
+ u16 value);
+static struct w83627hf_data *w83627hf_update_device(struct device *dev);
+static void w83627hf_init_client(struct i2c_client *client);
+
+static struct i2c_driver w83627hf_driver = {
+ .owner = THIS_MODULE,
+ .name = "w83627hf",
+ .id = I2C_DRIVERID_W83627HF,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = w83627hf_attach_adapter,
+ .detach_client = w83627hf_detach_client,
+};
+
+/* following are the sysfs callback functions */
+#define show_in_reg(reg) \
+static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+{ \
+ struct w83627hf_data *data = w83627hf_update_device(dev); \
+ return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr])); \
+}
+show_in_reg(in)
+show_in_reg(in_min)
+show_in_reg(in_max)
+
+#define store_in_reg(REG, reg) \
+static ssize_t \
+store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct w83627hf_data *data = i2c_get_clientdata(client); \
+ u32 val; \
+ \
+ val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ data->in_##reg[nr] = IN_TO_REG(val); \
+ w83627hf_write_value(client, W83781D_REG_IN_##REG(nr), \
+ data->in_##reg[nr]); \
+ \
+ up(&data->update_lock); \
+ return count; \
+}
+store_in_reg(MIN, min)
+store_in_reg(MAX, max)
+
+#define sysfs_in_offset(offset) \
+static ssize_t \
+show_regs_in_##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL);
+
+#define sysfs_in_reg_offset(reg, offset) \
+static ssize_t show_regs_in_##reg##offset (struct device *dev, char *buf) \
+{ \
+ return show_in_##reg (dev, buf, offset); \
+} \
+static ssize_t \
+store_regs_in_##reg##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return store_in_##reg (dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, \
+ show_regs_in_##reg##offset, store_regs_in_##reg##offset);
+
+#define sysfs_in_offsets(offset) \
+sysfs_in_offset(offset) \
+sysfs_in_reg_offset(min, offset) \
+sysfs_in_reg_offset(max, offset)
+
+sysfs_in_offsets(1);
+sysfs_in_offsets(2);
+sysfs_in_offsets(3);
+sysfs_in_offsets(4);
+sysfs_in_offsets(5);
+sysfs_in_offsets(6);
+sysfs_in_offsets(7);
+sysfs_in_offsets(8);
+
+/* use a different set of functions for in0 */
+static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
+{
+ long in0;
+
+ if ((data->vrm_ovt & 0x01) &&
+ (w83627thf == data->type || w83637hf == data->type))
+
+ /* use VRM9 calculation */
+ in0 = (long)((reg * 488 + 70000 + 50) / 100);
+ else
+ /* use VRM8 (standard) calculation */
+ in0 = (long)IN_FROM_REG(reg);
+
+ return sprintf(buf,"%ld\n", in0);
+}
+
+static ssize_t show_regs_in_0(struct device *dev, char *buf)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return show_in_0(data, buf, data->in[0]);
+}
+
+static ssize_t show_regs_in_min0(struct device *dev, char *buf)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return show_in_0(data, buf, data->in_min[0]);
+}
+
+static ssize_t show_regs_in_max0(struct device *dev, char *buf)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return show_in_0(data, buf, data->in_max[0]);
+}
+
+static ssize_t store_regs_in_min0(struct device *dev,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ if ((data->vrm_ovt & 0x01) &&
+ (w83627thf == data->type || w83637hf == data->type))
+
+ /* use VRM9 calculation */
+ data->in_min[0] = (u8)(((val * 100) - 70000 + 244) / 488);
+ else
+ /* use VRM8 (standard) calculation */
+ data->in_min[0] = IN_TO_REG(val);
+
+ w83627hf_write_value(client, W83781D_REG_IN_MIN(0), data->in_min[0]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t store_regs_in_max0(struct device *dev,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ if ((data->vrm_ovt & 0x01) &&
+ (w83627thf == data->type || w83637hf == data->type))
+
+ /* use VRM9 calculation */
+ data->in_max[0] = (u8)(((val * 100) - 70000 + 244) / 488);
+ else
+ /* use VRM8 (standard) calculation */
+ data->in_max[0] = IN_TO_REG(val);
+
+ w83627hf_write_value(client, W83781D_REG_IN_MAX(0), data->in_max[0]);
+ up(&data->update_lock);
+ return count;
+}
+
+static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
+static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
+ show_regs_in_min0, store_regs_in_min0);
+static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
+ show_regs_in_max0, store_regs_in_max0);
+
+#define device_create_file_in(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_in##offset##_input); \
+device_create_file(&client->dev, &dev_attr_in##offset##_min); \
+device_create_file(&client->dev, &dev_attr_in##offset##_max); \
+} while (0)
+
+#define show_fan_reg(reg) \
+static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+{ \
+ struct w83627hf_data *data = w83627hf_update_device(dev); \
+ return sprintf(buf,"%ld\n", \
+ FAN_FROM_REG(data->reg[nr-1], \
+ (long)DIV_FROM_REG(data->fan_div[nr-1]))); \
+}
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t
+store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr - 1] =
+ FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
+ w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr),
+ data->fan_min[nr - 1]);
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_fan_offset(offset) \
+static ssize_t show_regs_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL);
+
+#define sysfs_fan_min_offset(offset) \
+static ssize_t show_regs_fan_min##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset); \
+} \
+static ssize_t \
+store_regs_fan_min##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_fan_min(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+ show_regs_fan_min##offset, store_regs_fan_min##offset);
+
+sysfs_fan_offset(1);
+sysfs_fan_min_offset(1);
+sysfs_fan_offset(2);
+sysfs_fan_min_offset(2);
+sysfs_fan_offset(3);
+sysfs_fan_min_offset(3);
+
+#define device_create_file_fan(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
+device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
+} while (0)
+
+#define show_temp_reg(reg) \
+static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+{ \
+ struct w83627hf_data *data = w83627hf_update_device(dev); \
+ if (nr >= 2) { /* TEMP2 and TEMP3 */ \
+ return sprintf(buf,"%ld\n", \
+ (long)LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
+ } else { /* TEMP1 */ \
+ return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
+ } \
+}
+show_temp_reg(temp);
+show_temp_reg(temp_max);
+show_temp_reg(temp_max_hyst);
+
+#define store_temp_reg(REG, reg) \
+static ssize_t \
+store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct w83627hf_data *data = i2c_get_clientdata(client); \
+ u32 val; \
+ \
+ val = simple_strtoul(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ \
+ if (nr >= 2) { /* TEMP2 and TEMP3 */ \
+ data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
+ w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
+ data->temp_##reg##_add[nr-2]); \
+ } else { /* TEMP1 */ \
+ data->temp_##reg = TEMP_TO_REG(val); \
+ w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
+ data->temp_##reg); \
+ } \
+ \
+ up(&data->update_lock); \
+ return count; \
+}
+store_temp_reg(OVER, max);
+store_temp_reg(HYST, max_hyst);
+
+#define sysfs_temp_offset(offset) \
+static ssize_t \
+show_regs_temp_##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, offset); \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL);
+
+#define sysfs_temp_reg_offset(reg, offset) \
+static ssize_t show_regs_temp_##reg##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp_##reg (dev, buf, offset); \
+} \
+static ssize_t \
+store_regs_temp_##reg##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return store_temp_##reg (dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, \
+ show_regs_temp_##reg##offset, store_regs_temp_##reg##offset);
+
+#define sysfs_temp_offsets(offset) \
+sysfs_temp_offset(offset) \
+sysfs_temp_reg_offset(max, offset) \
+sysfs_temp_reg_offset(max_hyst, offset)
+
+sysfs_temp_offsets(1);
+sysfs_temp_offsets(2);
+sysfs_temp_offsets(3);
+
+#define device_create_file_temp(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
+device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
+device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
+} while (0)
+
+static ssize_t
+show_vid_reg(struct device *dev, char *buf)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+#define device_create_file_vid(client) \
+device_create_file(&client->dev, &dev_attr_cpu0_vid)
+
+static ssize_t
+show_vrm_reg(struct device *dev, char *buf)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+static ssize_t
+store_vrm_reg(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+ data->vrm = val;
+
+ return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+#define device_create_file_vrm(client) \
+device_create_file(&client->dev, &dev_attr_vrm)
+
+static ssize_t
+show_alarms_reg(struct device *dev, char *buf)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+#define device_create_file_alarms(client) \
+device_create_file(&client->dev, &dev_attr_alarms)
+
+#define show_beep_reg(REG, reg) \
+static ssize_t show_beep_##reg (struct device *dev, char *buf) \
+{ \
+ struct w83627hf_data *data = w83627hf_update_device(dev); \
+ return sprintf(buf,"%ld\n", \
+ (long)BEEP_##REG##_FROM_REG(data->beep_##reg)); \
+}
+show_beep_reg(ENABLE, enable)
+show_beep_reg(MASK, mask)
+
+#define BEEP_ENABLE 0 /* Store beep_enable */
+#define BEEP_MASK 1 /* Store beep_mask */
+
+static ssize_t
+store_beep_reg(struct device *dev, const char *buf, size_t count,
+ int update_mask)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ u32 val, val2;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
+ data->beep_mask = BEEP_MASK_TO_REG(val);
+ w83627hf_write_value(client, W83781D_REG_BEEP_INTS1,
+ data->beep_mask & 0xff);
+ w83627hf_write_value(client, W83781D_REG_BEEP_INTS3,
+ ((data->beep_mask) >> 16) & 0xff);
+ val2 = (data->beep_mask >> 8) & 0x7f;
+ } else { /* We are storing beep_enable */
+ val2 =
+ w83627hf_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f;
+ data->beep_enable = BEEP_ENABLE_TO_REG(val);
+ }
+
+ w83627hf_write_value(client, W83781D_REG_BEEP_INTS2,
+ val2 | data->beep_enable << 7);
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_beep(REG, reg) \
+static ssize_t show_regs_beep_##reg (struct device *dev, char *buf) \
+{ \
+ return show_beep_##reg(dev, buf); \
+} \
+static ssize_t \
+store_regs_beep_##reg (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_beep_reg(dev, buf, count, BEEP_##REG); \
+} \
+static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, \
+ show_regs_beep_##reg, store_regs_beep_##reg);
+
+sysfs_beep(ENABLE, enable);
+sysfs_beep(MASK, mask);
+
+#define device_create_file_beep(client) \
+do { \
+device_create_file(&client->dev, &dev_attr_beep_enable); \
+device_create_file(&client->dev, &dev_attr_beep_mask); \
+} while (0)
+
+static ssize_t
+show_fan_div_reg(struct device *dev, char *buf, int nr)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return sprintf(buf, "%ld\n",
+ (long) DIV_FROM_REG(data->fan_div[nr - 1]));
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan divisor. This follows the principle of
+ least suprise; the user doesn't expect the fan minimum to change just
+ because the divisor changed. */
+static ssize_t
+store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ unsigned long min;
+ u8 reg;
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ /* Save fan_min */
+ min = FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+
+ data->fan_div[nr] = DIV_TO_REG(val);
+
+ reg = (w83627hf_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+ & (nr==0 ? 0xcf : 0x3f))
+ | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
+ w83627hf_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+
+ reg = (w83627hf_read_value(client, W83781D_REG_VBAT)
+ & ~(1 << (5 + nr)))
+ | ((data->fan_div[nr] & 0x04) << (3 + nr));
+ w83627hf_write_value(client, W83781D_REG_VBAT, reg);
+
+ /* Restore fan_min */
+ data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+ w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_fan_div(offset) \
+static ssize_t show_regs_fan_div_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan_div_reg(dev, buf, offset); \
+} \
+static ssize_t \
+store_regs_fan_div_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return store_fan_div_reg(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+ show_regs_fan_div_##offset, store_regs_fan_div_##offset);
+
+sysfs_fan_div(1);
+sysfs_fan_div(2);
+sysfs_fan_div(3);
+
+#define device_create_file_fan_div(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
+} while (0)
+
+static ssize_t
+show_pwm_reg(struct device *dev, char *buf, int nr)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->pwm[nr - 1]);
+}
+
+static ssize_t
+store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ if (data->type == w83627thf) {
+ /* bits 0-3 are reserved in 627THF */
+ data->pwm[nr - 1] = PWM_TO_REG(val) & 0xf0;
+ w83627hf_write_value(client,
+ W836X7HF_REG_PWM(data->type, nr),
+ data->pwm[nr - 1] |
+ (w83627hf_read_value(client,
+ W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
+ } else {
+ data->pwm[nr - 1] = PWM_TO_REG(val);
+ w83627hf_write_value(client,
+ W836X7HF_REG_PWM(data->type, nr),
+ data->pwm[nr - 1]);
+ }
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_pwm(offset) \
+static ssize_t show_regs_pwm_##offset (struct device *dev, char *buf) \
+{ \
+ return show_pwm_reg(dev, buf, offset); \
+} \
+static ssize_t \
+store_regs_pwm_##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_pwm_reg(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
+ show_regs_pwm_##offset, store_regs_pwm_##offset);
+
+sysfs_pwm(1);
+sysfs_pwm(2);
+sysfs_pwm(3);
+
+#define device_create_file_pwm(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_pwm##offset); \
+} while (0)
+
+static ssize_t
+show_sensor_reg(struct device *dev, char *buf, int nr)
+{
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]);
+}
+
+static ssize_t
+store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ u32 val, tmp;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ switch (val) {
+ case 1: /* PII/Celeron diode */
+ tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
+ w83627hf_write_value(client, W83781D_REG_SCFG1,
+ tmp | BIT_SCFG1[nr - 1]);
+ tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
+ w83627hf_write_value(client, W83781D_REG_SCFG2,
+ tmp | BIT_SCFG2[nr - 1]);
+ data->sens[nr - 1] = val;
+ break;
+ case 2: /* 3904 */
+ tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
+ w83627hf_write_value(client, W83781D_REG_SCFG1,
+ tmp | BIT_SCFG1[nr - 1]);
+ tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
+ w83627hf_write_value(client, W83781D_REG_SCFG2,
+ tmp & ~BIT_SCFG2[nr - 1]);
+ data->sens[nr - 1] = val;
+ break;
+ case W83781D_DEFAULT_BETA: /* thermistor */
+ tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
+ w83627hf_write_value(client, W83781D_REG_SCFG1,
+ tmp & ~BIT_SCFG1[nr - 1]);
+ data->sens[nr - 1] = val;
+ break;
+ default:
+ dev_err(&client->dev,
+ "Invalid sensor type %ld; must be 1, 2, or %d\n",
+ (long) val, W83781D_DEFAULT_BETA);
+ break;
+ }
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_sensor(offset) \
+static ssize_t show_regs_sensor_##offset (struct device *dev, char *buf) \
+{ \
+ return show_sensor_reg(dev, buf, offset); \
+} \
+static ssize_t \
+store_regs_sensor_##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_sensor_reg(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
+ show_regs_sensor_##offset, store_regs_sensor_##offset);
+
+sysfs_sensor(1);
+sysfs_sensor(2);
+sysfs_sensor(3);
+
+#define device_create_file_sensor(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
+} while (0)
+
+
+/* This function is called when:
+ * w83627hf_driver is inserted (when this module is loaded), for each
+ available adapter
+ * when a new adapter is inserted (and w83627hf_driver is still present) */
+static int w83627hf_attach_adapter(struct i2c_adapter *adapter)
+{
+ return i2c_detect(adapter, &addr_data, w83627hf_detect);
+}
+
+static int w83627hf_find(int sioaddr, int *address)
+{
+ u16 val;
+
+ REG = sioaddr;
+ VAL = sioaddr + 1;
+
+ superio_enter();
+ val= superio_inb(DEVID);
+ if(val != W627_DEVID &&
+ val != W627THF_DEVID &&
+ val != W697_DEVID &&
+ val != W637_DEVID) {
+ superio_exit();
+ return -ENODEV;
+ }
+
+ superio_select(W83627HF_LD_HWM);
+ val = (superio_inb(WINB_BASE_REG) << 8) |
+ superio_inb(WINB_BASE_REG + 1);
+ *address = val & ~(WINB_EXTENT - 1);
+ if (*address == 0 && force_addr == 0) {
+ superio_exit();
+ return -ENODEV;
+ }
+ if (force_addr)
+ *address = force_addr; /* so detect will get called */
+
+ superio_exit();
+ return 0;
+}
+
+int w83627hf_detect(struct i2c_adapter *adapter, int address,
+ int kind)
+{
+ int val;
+ struct i2c_client *new_client;
+ struct w83627hf_data *data;
+ int err = 0;
+ const char *client_name = "";
+
+ if (!i2c_is_isa_adapter(adapter)) {
+ err = -ENODEV;
+ goto ERROR0;
+ }
+
+ if(force_addr)
+ address = force_addr & ~(WINB_EXTENT - 1);
+
+ if (!request_region(address, WINB_EXTENT, w83627hf_driver.name)) {
+ err = -EBUSY;
+ goto ERROR0;
+ }
+
+ if(force_addr) {
+ printk("w83627hf.o: forcing ISA address 0x%04X\n", address);
+ superio_enter();
+ superio_select(W83627HF_LD_HWM);
+ superio_outb(WINB_BASE_REG, address >> 8);
+ superio_outb(WINB_BASE_REG+1, address & 0xff);
+ superio_exit();
+ }
+
+ superio_enter();
+ val= superio_inb(DEVID);
+ if(val == W627_DEVID)
+ kind = w83627hf;
+ else if(val == W697_DEVID)
+ kind = w83697hf;
+ else if(val == W627THF_DEVID)
+ kind = w83627thf;
+ else if(val == W637_DEVID)
+ kind = w83637hf;
+ else {
+ dev_info(&adapter->dev,
+ "Unsupported chip (dev_id=0x%02X).\n", val);
+ goto ERROR1;
+ }
+
+ superio_select(W83627HF_LD_HWM);
+ if((val = 0x01 & superio_inb(WINB_ACT_REG)) == 0)
+ superio_outb(WINB_ACT_REG, 1);
+ superio_exit();
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access w83627hf_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto ERROR1;
+ }
+ memset(data, 0, sizeof(struct w83627hf_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ init_MUTEX(&data->lock);
+ new_client->adapter = adapter;
+ new_client->driver = &w83627hf_driver;
+ new_client->flags = 0;
+
+
+ if (kind == w83627hf) {
+ client_name = "w83627hf";
+ } else if (kind == w83627thf) {
+ client_name = "w83627thf";
+ } else if (kind == w83697hf) {
+ client_name = "w83697hf";
+ } else if (kind == w83637hf) {
+ client_name = "w83637hf";
+ }
+
+ /* Fill in the remaining client fields and put into the global list */
+ strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
+ data->type = kind;
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR2;
+
+ data->lm75 = NULL;
+
+ /* Initialize the chip */
+ w83627hf_init_client(new_client);
+
+ /* A few vars need to be filled upon startup */
+ data->fan_min[0] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(1));
+ data->fan_min[1] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(2));
+ data->fan_min[2] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(3));
+
+ /* Register sysfs hooks */
+ device_create_file_in(new_client, 0);
+ if (kind != w83697hf)
+ device_create_file_in(new_client, 1);
+ device_create_file_in(new_client, 2);
+ device_create_file_in(new_client, 3);
+ device_create_file_in(new_client, 4);
+ if (kind != w83627thf && kind != w83637hf) {
+ device_create_file_in(new_client, 5);
+ device_create_file_in(new_client, 6);
+ }
+ device_create_file_in(new_client, 7);
+ device_create_file_in(new_client, 8);
+
+ device_create_file_fan(new_client, 1);
+ device_create_file_fan(new_client, 2);
+ if (kind != w83697hf)
+ device_create_file_fan(new_client, 3);
+
+ device_create_file_temp(new_client, 1);
+ device_create_file_temp(new_client, 2);
+ if (kind != w83697hf)
+ device_create_file_temp(new_client, 3);
+
+ if (kind != w83697hf)
+ device_create_file_vid(new_client);
+
+ if (kind != w83697hf)
+ device_create_file_vrm(new_client);
+
+ device_create_file_fan_div(new_client, 1);
+ device_create_file_fan_div(new_client, 2);
+ if (kind != w83697hf)
+ device_create_file_fan_div(new_client, 3);
+
+ device_create_file_alarms(new_client);
+
+ device_create_file_beep(new_client);
+
+ device_create_file_pwm(new_client, 1);
+ device_create_file_pwm(new_client, 2);
+ if (kind == w83627thf || kind == w83637hf)
+ device_create_file_pwm(new_client, 3);
+
+ device_create_file_sensor(new_client, 1);
+ device_create_file_sensor(new_client, 2);
+ if (kind != w83697hf)
+ device_create_file_sensor(new_client, 3);
+
+ return 0;
+
+ ERROR2:
+ kfree(data);
+ ERROR1:
+ release_region(address, WINB_EXTENT);
+ ERROR0:
+ return err;
+}
+
+static int w83627hf_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ release_region(client->addr, WINB_EXTENT);
+ kfree(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+
+/*
+ ISA access must always be locked explicitly!
+ We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
+ would slow down the W83781D access and should not be necessary.
+ There are some ugly typecasts here, but the good news is - they should
+ nowhere else be necessary! */
+static int w83627hf_read_value(struct i2c_client *client, u16 reg)
+{
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ int res, word_sized;
+
+ down(&data->lock);
+ word_sized = (((reg & 0xff00) == 0x100)
+ || ((reg & 0xff00) == 0x200))
+ && (((reg & 0x00ff) == 0x50)
+ || ((reg & 0x00ff) == 0x53)
+ || ((reg & 0x00ff) == 0x55));
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(reg >> 8,
+ client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
+ res = inb_p(client->addr + W83781D_DATA_REG_OFFSET);
+ if (word_sized) {
+ outb_p((reg & 0xff) + 1,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ res =
+ (res << 8) + inb_p(client->addr +
+ W83781D_DATA_REG_OFFSET);
+ }
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ up(&data->lock);
+ return res;
+}
+
+static int w83627thf_read_gpio5(struct i2c_client *client)
+{
+ int res = 0xff, sel;
+
+ superio_enter();
+ superio_select(W83627HF_LD_GPIO5);
+
+ /* Make sure these GPIO pins are enabled */
+ if (!(superio_inb(W83627THF_GPIO5_EN) & (1<<3))) {
+ dev_dbg(&client->dev, "GPIO5 disabled, no VID function\n");
+ goto exit;
+ }
+
+ /* Make sure the pins are configured for input
+ There must be at least five (VRM 9), and possibly 6 (VRM 10) */
+ sel = superio_inb(W83627THF_GPIO5_IOSR);
+ if ((sel & 0x1f) != 0x1f) {
+ dev_dbg(&client->dev, "GPIO5 not configured for VID "
+ "function\n");
+ goto exit;
+ }
+
+ dev_info(&client->dev, "Reading VID from GPIO5\n");
+ res = superio_inb(W83627THF_GPIO5_DR) & sel;
+
+exit:
+ superio_exit();
+ return res;
+}
+
+static int w83627hf_write_value(struct i2c_client *client, u16 reg, u16 value)
+{
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ int word_sized;
+
+ down(&data->lock);
+ word_sized = (((reg & 0xff00) == 0x100)
+ || ((reg & 0xff00) == 0x200))
+ && (((reg & 0x00ff) == 0x53)
+ || ((reg & 0x00ff) == 0x55));
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(reg >> 8,
+ client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
+ if (word_sized) {
+ outb_p(value >> 8,
+ client->addr + W83781D_DATA_REG_OFFSET);
+ outb_p((reg & 0xff) + 1,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ }
+ outb_p(value & 0xff,
+ client->addr + W83781D_DATA_REG_OFFSET);
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ up(&data->lock);
+ return 0;
+}
+
+/* Called when we have found a new W83781D. It should set limits, etc. */
+static void w83627hf_init_client(struct i2c_client *client)
+{
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ int i;
+ int type = data->type;
+ u8 tmp;
+
+ if(init) {
+ /* save this register */
+ i = w83627hf_read_value(client, W83781D_REG_BEEP_CONFIG);
+ /* Reset all except Watchdog values and last conversion values
+ This sets fan-divs to 2, among others */
+ w83627hf_write_value(client, W83781D_REG_CONFIG, 0x80);
+ /* Restore the register and disable power-on abnormal beep.
+ This saves FAN 1/2/3 input/output values set by BIOS. */
+ w83627hf_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
+ /* Disable master beep-enable (reset turns it on).
+ Individual beeps should be reset to off but for some reason
+ disabling this bit helps some people not get beeped */
+ w83627hf_write_value(client, W83781D_REG_BEEP_INTS2, 0);
+ }
+
+ /* Minimize conflicts with other winbond i2c-only clients... */
+ /* disable i2c subclients... how to disable main i2c client?? */
+ /* force i2c address to relatively uncommon address */
+ w83627hf_write_value(client, W83781D_REG_I2C_SUBADDR, 0x89);
+ w83627hf_write_value(client, W83781D_REG_I2C_ADDR, force_i2c);
+
+ /* Read VID only once */
+ if (w83627hf == data->type || w83637hf == data->type) {
+ int lo = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
+ int hi = w83627hf_read_value(client, W83781D_REG_CHIPID);
+ data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
+ } else if (w83627thf == data->type) {
+ data->vid = w83627thf_read_gpio5(client) & 0x3f;
+ }
+
+ /* Read VRM & OVT Config only once */
+ if (w83627thf == data->type || w83637hf == data->type) {
+ data->vrm_ovt =
+ w83627hf_read_value(client, W83627THF_REG_VRM_OVT_CFG);
+ data->vrm = (data->vrm_ovt & 0x01) ? 90 : 82;
+ } else {
+ /* Convert VID to voltage based on default VRM */
+ data->vrm = i2c_which_vrm();
+ }
+
+ tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
+ for (i = 1; i <= 3; i++) {
+ if (!(tmp & BIT_SCFG1[i - 1])) {
+ data->sens[i - 1] = W83781D_DEFAULT_BETA;
+ } else {
+ if (w83627hf_read_value
+ (client,
+ W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
+ data->sens[i - 1] = 1;
+ else
+ data->sens[i - 1] = 2;
+ }
+ if ((type == w83697hf) && (i == 2))
+ break;
+ }
+
+ if(init) {
+ /* Enable temp2 */
+ tmp = w83627hf_read_value(client, W83781D_REG_TEMP2_CONFIG);
+ if (tmp & 0x01) {
+ dev_warn(&client->dev, "Enabling temp2, readings "
+ "might not make sense\n");
+ w83627hf_write_value(client, W83781D_REG_TEMP2_CONFIG,
+ tmp & 0xfe);
+ }
+
+ /* Enable temp3 */
+ if (type != w83697hf) {
+ tmp = w83627hf_read_value(client,
+ W83781D_REG_TEMP3_CONFIG);
+ if (tmp & 0x01) {
+ dev_warn(&client->dev, "Enabling temp3, "
+ "readings might not make sense\n");
+ w83627hf_write_value(client,
+ W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
+ }
+ }
+
+ if (type == w83627hf) {
+ /* enable PWM2 control (can't hurt since PWM reg
+ should have been reset to 0xff) */
+ w83627hf_write_value(client, W83627HF_REG_PWMCLK12,
+ 0x19);
+ }
+ /* enable comparator mode for temp2 and temp3 so
+ alarm indication will work correctly */
+ i = w83627hf_read_value(client, W83781D_REG_IRQ);
+ if (!(i & 0x40))
+ w83627hf_write_value(client, W83781D_REG_IRQ,
+ i | 0x40);
+ }
+
+ /* Start monitoring */
+ w83627hf_write_value(client, W83781D_REG_CONFIG,
+ (w83627hf_read_value(client,
+ W83781D_REG_CONFIG) & 0xf7)
+ | 0x01);
+}
+
+static struct w83627hf_data *w83627hf_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83627hf_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ for (i = 0; i <= 8; i++) {
+ /* skip missing sensors */
+ if (((data->type == w83697hf) && (i == 1)) ||
+ ((data->type == w83627thf || data->type == w83637hf)
+ && (i == 4 || i == 5)))
+ continue;
+ data->in[i] =
+ w83627hf_read_value(client, W83781D_REG_IN(i));
+ data->in_min[i] =
+ w83627hf_read_value(client,
+ W83781D_REG_IN_MIN(i));
+ data->in_max[i] =
+ w83627hf_read_value(client,
+ W83781D_REG_IN_MAX(i));
+ }
+ for (i = 1; i <= 3; i++) {
+ data->fan[i - 1] =
+ w83627hf_read_value(client, W83781D_REG_FAN(i));
+ data->fan_min[i - 1] =
+ w83627hf_read_value(client,
+ W83781D_REG_FAN_MIN(i));
+ }
+ for (i = 1; i <= 3; i++) {
+ u8 tmp = w83627hf_read_value(client,
+ W836X7HF_REG_PWM(data->type, i));
+ /* bits 0-3 are reserved in 627THF */
+ if (data->type == w83627thf)
+ tmp &= 0xf0;
+ data->pwm[i - 1] = tmp;
+ if(i == 2 &&
+ (data->type == w83627hf || data->type == w83697hf))
+ break;
+ }
+
+ data->temp = w83627hf_read_value(client, W83781D_REG_TEMP(1));
+ data->temp_max =
+ w83627hf_read_value(client, W83781D_REG_TEMP_OVER(1));
+ data->temp_max_hyst =
+ w83627hf_read_value(client, W83781D_REG_TEMP_HYST(1));
+ data->temp_add[0] =
+ w83627hf_read_value(client, W83781D_REG_TEMP(2));
+ data->temp_max_add[0] =
+ w83627hf_read_value(client, W83781D_REG_TEMP_OVER(2));
+ data->temp_max_hyst_add[0] =
+ w83627hf_read_value(client, W83781D_REG_TEMP_HYST(2));
+ if (data->type != w83697hf) {
+ data->temp_add[1] =
+ w83627hf_read_value(client, W83781D_REG_TEMP(3));
+ data->temp_max_add[1] =
+ w83627hf_read_value(client, W83781D_REG_TEMP_OVER(3));
+ data->temp_max_hyst_add[1] =
+ w83627hf_read_value(client, W83781D_REG_TEMP_HYST(3));
+ }
+
+ i = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = (i >> 6) & 0x03;
+ if (data->type != w83697hf) {
+ data->fan_div[2] = (w83627hf_read_value(client,
+ W83781D_REG_PIN) >> 6) & 0x03;
+ }
+ i = w83627hf_read_value(client, W83781D_REG_VBAT);
+ data->fan_div[0] |= (i >> 3) & 0x04;
+ data->fan_div[1] |= (i >> 4) & 0x04;
+ if (data->type != w83697hf)
+ data->fan_div[2] |= (i >> 5) & 0x04;
+ data->alarms =
+ w83627hf_read_value(client, W83781D_REG_ALARM1) |
+ (w83627hf_read_value(client, W83781D_REG_ALARM2) << 8) |
+ (w83627hf_read_value(client, W83781D_REG_ALARM3) << 16);
+ i = w83627hf_read_value(client, W83781D_REG_BEEP_INTS2);
+ data->beep_enable = i >> 7;
+ data->beep_mask = ((i & 0x7f) << 8) |
+ w83627hf_read_value(client, W83781D_REG_BEEP_INTS1) |
+ w83627hf_read_value(client, W83781D_REG_BEEP_INTS3) << 16;
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_w83627hf_init(void)
+{
+ int addr;
+
+ if (w83627hf_find(0x2e, &addr)
+ && w83627hf_find(0x4e, &addr)) {
+ return -ENODEV;
+ }
+ normal_isa[0] = addr;
+
+ return i2c_add_driver(&w83627hf_driver);
+}
+
+static void __exit sensors_w83627hf_exit(void)
+{
+ i2c_del_driver(&w83627hf_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+ "Philip Edelbrock <phil@netroedge.com>, "
+ "and Mark Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("W83627HF driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83627hf_init);
+module_exit(sensors_w83627hf_exit);
diff --git a/drivers/i2c/chips/w83781d.c b/drivers/i2c/chips/w83781d.c
new file mode 100644
index 0000000..4954e46
--- /dev/null
+++ b/drivers/i2c/chips/w83781d.c
@@ -0,0 +1,1664 @@
+/*
+ w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
+ Philip Edelbrock <phil@netroedge.com>,
+ and Mark Studebaker <mdsxyz123@yahoo.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ Supports following chips:
+
+ Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ as99127f 7 3 0 3 0x31 0x12c3 yes no
+ as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no
+ w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes
+ w83627hf 9 3 2 3 0x21 0x5ca3 yes yes(LPC)
+ w83627thf 9 3 2 3 0x90 0x5ca3 no yes(LPC)
+ w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes
+ w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no
+ w83697hf 8 2 2 2 0x60 0x5ca3 no yes(LPC)
+
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+#include <asm/io.h>
+#include "lm75.h"
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25,
+ 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
+ 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { 0x0290, I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_6(w83781d, w83782d, w83783s, w83627hf, as99127f, w83697hf);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+ "{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static int init = 1;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
+
+/* Constants specified below */
+
+/* Length of ISA address segment */
+#define W83781D_EXTENT 8
+
+/* Where are the ISA address/data registers relative to the base address */
+#define W83781D_ADDR_REG_OFFSET 5
+#define W83781D_DATA_REG_OFFSET 6
+
+/* The W83781D registers */
+/* The W83782D registers for nr=7,8 are in bank 5 */
+#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
+ (0x554 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
+ (0x555 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
+ (0x550 + (nr) - 7))
+
+#define W83781D_REG_FAN_MIN(nr) (0x3a + (nr))
+#define W83781D_REG_FAN(nr) (0x27 + (nr))
+
+#define W83781D_REG_BANK 0x4E
+#define W83781D_REG_TEMP2_CONFIG 0x152
+#define W83781D_REG_TEMP3_CONFIG 0x252
+#define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \
+ ((nr == 2) ? (0x0150) : \
+ (0x27)))
+#define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \
+ ((nr == 2) ? (0x153) : \
+ (0x3A)))
+#define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \
+ ((nr == 2) ? (0x155) : \
+ (0x39)))
+
+#define W83781D_REG_CONFIG 0x40
+#define W83781D_REG_ALARM1 0x41
+#define W83781D_REG_ALARM2 0x42
+#define W83781D_REG_ALARM3 0x450 /* not on W83781D */
+
+#define W83781D_REG_IRQ 0x4C
+#define W83781D_REG_BEEP_CONFIG 0x4D
+#define W83781D_REG_BEEP_INTS1 0x56
+#define W83781D_REG_BEEP_INTS2 0x57
+#define W83781D_REG_BEEP_INTS3 0x453 /* not on W83781D */
+
+#define W83781D_REG_VID_FANDIV 0x47
+
+#define W83781D_REG_CHIPID 0x49
+#define W83781D_REG_WCHIPID 0x58
+#define W83781D_REG_CHIPMAN 0x4F
+#define W83781D_REG_PIN 0x4B
+
+/* 782D/783S only */
+#define W83781D_REG_VBAT 0x5D
+
+/* PWM 782D (1-4) and 783S (1-2) only */
+#define W83781D_REG_PWM1 0x5B /* 782d and 783s/627hf datasheets disagree */
+ /* on which is which; */
+#define W83781D_REG_PWM2 0x5A /* We follow the 782d convention here, */
+ /* However 782d is probably wrong. */
+#define W83781D_REG_PWM3 0x5E
+#define W83781D_REG_PWM4 0x5F
+#define W83781D_REG_PWMCLK12 0x5C
+#define W83781D_REG_PWMCLK34 0x45C
+static const u8 regpwm[] = { W83781D_REG_PWM1, W83781D_REG_PWM2,
+ W83781D_REG_PWM3, W83781D_REG_PWM4
+};
+
+#define W83781D_REG_PWM(nr) (regpwm[(nr) - 1])
+
+#define W83781D_REG_I2C_ADDR 0x48
+#define W83781D_REG_I2C_SUBADDR 0x4A
+
+/* The following are undocumented in the data sheets however we
+ received the information in an email from Winbond tech support */
+/* Sensor selection - not on 781d */
+#define W83781D_REG_SCFG1 0x5D
+static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
+
+#define W83781D_REG_SCFG2 0x59
+static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
+
+#define W83781D_DEFAULT_BETA 3435
+
+/* RT Table registers */
+#define W83781D_REG_RT_IDX 0x50
+#define W83781D_REG_RT_VAL 0x51
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ variants. Note that you should be a bit careful with which arguments
+ these macros are called: arguments may be evaluated more than once.
+ Fixing this is just not worth it. */
+#define IN_TO_REG(val) (SENSORS_LIMIT((((val) * 10 + 8)/16),0,255))
+#define IN_FROM_REG(val) (((val) * 16) / 10)
+
+static inline u8
+FAN_TO_REG(long rpm, int div)
+{
+ if (rpm == 0)
+ return 255;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+#define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
+ ((val) == 255 ? 0 : \
+ 1350000 / ((val) * (div))))
+
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
+ : (val)) / 1000, 0, 0xff))
+#define TEMP_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
+
+#define ALARMS_FROM_REG(val) (val)
+#define PWM_FROM_REG(val) (val)
+#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
+#define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \
+ (val) ^ 0x7fff : (val))
+#define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \
+ (~(val)) & 0x7fff : (val) & 0xffffff)
+
+#define BEEP_ENABLE_TO_REG(val) ((val) ? 1 : 0)
+#define BEEP_ENABLE_FROM_REG(val) ((val) ? 1 : 0)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+static inline u8
+DIV_TO_REG(long val, enum chips type)
+{
+ int i;
+ val = SENSORS_LIMIT(val, 1,
+ ((type == w83781d
+ || type == as99127f) ? 8 : 128)) >> 1;
+ for (i = 0; i < 6; i++) {
+ if (val == 0)
+ break;
+ val >>= 1;
+ }
+ return ((u8) i);
+}
+
+/* There are some complications in a module like this. First off, W83781D chips
+ may be both present on the SMBus and the ISA bus, and we have to handle
+ those cases separately at some places. Second, there might be several
+ W83781D chips available (well, actually, that is probably never done; but
+ it is a clean illustration of how to handle a case like that). Finally,
+ a specific chip may be attached to *both* ISA and SMBus, and we would
+ not like to detect it double. Fortunately, in the case of the W83781D at
+ least, a register tells us what SMBus address we are on, so that helps
+ a bit - except if there could be more than one SMBus. Groan. No solution
+ for this yet. */
+
+/* This module may seem overly long and complicated. In fact, it is not so
+ bad. Quite a lot of bookkeeping is done. A real driver can often cut
+ some corners. */
+
+/* For each registered W83781D, we need to keep some data in memory. That
+ data is pointed to by w83781d_list[NR]->data. The structure itself is
+ dynamically allocated, at the same time when a new w83781d client is
+ allocated. */
+struct w83781d_data {
+ struct i2c_client client;
+ struct semaphore lock;
+ enum chips type;
+
+ struct semaphore update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ struct i2c_client *lm75[2]; /* for secondary I2C addresses */
+ /* array of 2 pointers to subclients */
+
+ u8 in[9]; /* Register value - 8 & 9 for 782D only */
+ u8 in_max[9]; /* Register value - 8 & 9 for 782D only */
+ u8 in_min[9]; /* Register value - 8 & 9 for 782D only */
+ u8 fan[3]; /* Register value */
+ u8 fan_min[3]; /* Register value */
+ u8 temp;
+ u8 temp_max; /* Register value */
+ u8 temp_max_hyst; /* Register value */
+ u16 temp_add[2]; /* Register value */
+ u16 temp_max_add[2]; /* Register value */
+ u16 temp_max_hyst_add[2]; /* Register value */
+ u8 fan_div[3]; /* Register encoding, shifted right */
+ u8 vid; /* Register encoding, combined */
+ u32 alarms; /* Register encoding, combined */
+ u32 beep_mask; /* Register encoding, combined */
+ u8 beep_enable; /* Boolean */
+ u8 pwm[4]; /* Register value */
+ u8 pwmenable[4]; /* Boolean */
+ u16 sens[3]; /* 782D/783S only.
+ 1 = pentium diode; 2 = 3904 diode;
+ 3000-5000 = thermistor beta.
+ Default = 3435.
+ Other Betas unimplemented */
+ u8 vrm;
+};
+
+static int w83781d_attach_adapter(struct i2c_adapter *adapter);
+static int w83781d_detect(struct i2c_adapter *adapter, int address, int kind);
+static int w83781d_detach_client(struct i2c_client *client);
+
+static int w83781d_read_value(struct i2c_client *client, u16 register);
+static int w83781d_write_value(struct i2c_client *client, u16 register,
+ u16 value);
+static struct w83781d_data *w83781d_update_device(struct device *dev);
+static void w83781d_init_client(struct i2c_client *client);
+
+static struct i2c_driver w83781d_driver = {
+ .owner = THIS_MODULE,
+ .name = "w83781d",
+ .id = I2C_DRIVERID_W83781D,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = w83781d_attach_adapter,
+ .detach_client = w83781d_detach_client,
+};
+
+/* following are the sysfs callback functions */
+#define show_in_reg(reg) \
+static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+{ \
+ struct w83781d_data *data = w83781d_update_device(dev); \
+ return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr] * 10)); \
+}
+show_in_reg(in);
+show_in_reg(in_min);
+show_in_reg(in_max);
+
+#define store_in_reg(REG, reg) \
+static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct w83781d_data *data = i2c_get_clientdata(client); \
+ u32 val; \
+ \
+ val = simple_strtoul(buf, NULL, 10) / 10; \
+ \
+ down(&data->update_lock); \
+ data->in_##reg[nr] = IN_TO_REG(val); \
+ w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
+ \
+ up(&data->update_lock); \
+ return count; \
+}
+store_in_reg(MIN, min);
+store_in_reg(MAX, max);
+
+#define sysfs_in_offset(offset) \
+static ssize_t \
+show_regs_in_##offset (struct device *dev, char *buf) \
+{ \
+ return show_in(dev, buf, offset); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL);
+
+#define sysfs_in_reg_offset(reg, offset) \
+static ssize_t show_regs_in_##reg##offset (struct device *dev, char *buf) \
+{ \
+ return show_in_##reg (dev, buf, offset); \
+} \
+static ssize_t store_regs_in_##reg##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_in_##reg (dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_in_##reg##offset, store_regs_in_##reg##offset);
+
+#define sysfs_in_offsets(offset) \
+sysfs_in_offset(offset); \
+sysfs_in_reg_offset(min, offset); \
+sysfs_in_reg_offset(max, offset);
+
+sysfs_in_offsets(0);
+sysfs_in_offsets(1);
+sysfs_in_offsets(2);
+sysfs_in_offsets(3);
+sysfs_in_offsets(4);
+sysfs_in_offsets(5);
+sysfs_in_offsets(6);
+sysfs_in_offsets(7);
+sysfs_in_offsets(8);
+
+#define device_create_file_in(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_in##offset##_input); \
+device_create_file(&client->dev, &dev_attr_in##offset##_min); \
+device_create_file(&client->dev, &dev_attr_in##offset##_max); \
+} while (0)
+
+#define show_fan_reg(reg) \
+static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+{ \
+ struct w83781d_data *data = w83781d_update_device(dev); \
+ return sprintf(buf,"%ld\n", \
+ FAN_FROM_REG(data->reg[nr-1], (long)DIV_FROM_REG(data->fan_div[nr-1]))); \
+}
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t
+store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->fan_min[nr - 1] =
+ FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
+ w83781d_write_value(client, W83781D_REG_FAN_MIN(nr),
+ data->fan_min[nr - 1]);
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_fan_offset(offset) \
+static ssize_t show_regs_fan_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan(dev, buf, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL);
+
+#define sysfs_fan_min_offset(offset) \
+static ssize_t show_regs_fan_min##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan_min(dev, buf, offset); \
+} \
+static ssize_t store_regs_fan_min##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_fan_min(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, show_regs_fan_min##offset, store_regs_fan_min##offset);
+
+sysfs_fan_offset(1);
+sysfs_fan_min_offset(1);
+sysfs_fan_offset(2);
+sysfs_fan_min_offset(2);
+sysfs_fan_offset(3);
+sysfs_fan_min_offset(3);
+
+#define device_create_file_fan(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
+device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
+} while (0)
+
+#define show_temp_reg(reg) \
+static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+{ \
+ struct w83781d_data *data = w83781d_update_device(dev); \
+ if (nr >= 2) { /* TEMP2 and TEMP3 */ \
+ return sprintf(buf,"%d\n", \
+ LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
+ } else { /* TEMP1 */ \
+ return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
+ } \
+}
+show_temp_reg(temp);
+show_temp_reg(temp_max);
+show_temp_reg(temp_max_hyst);
+
+#define store_temp_reg(REG, reg) \
+static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
+{ \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct w83781d_data *data = i2c_get_clientdata(client); \
+ s32 val; \
+ \
+ val = simple_strtol(buf, NULL, 10); \
+ \
+ down(&data->update_lock); \
+ \
+ if (nr >= 2) { /* TEMP2 and TEMP3 */ \
+ data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
+ w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \
+ data->temp_##reg##_add[nr-2]); \
+ } else { /* TEMP1 */ \
+ data->temp_##reg = TEMP_TO_REG(val); \
+ w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \
+ data->temp_##reg); \
+ } \
+ \
+ up(&data->update_lock); \
+ return count; \
+}
+store_temp_reg(OVER, max);
+store_temp_reg(HYST, max_hyst);
+
+#define sysfs_temp_offset(offset) \
+static ssize_t \
+show_regs_temp_##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp(dev, buf, offset); \
+} \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL);
+
+#define sysfs_temp_reg_offset(reg, offset) \
+static ssize_t show_regs_temp_##reg##offset (struct device *dev, char *buf) \
+{ \
+ return show_temp_##reg (dev, buf, offset); \
+} \
+static ssize_t store_regs_temp_##reg##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_temp_##reg (dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_temp_##reg##offset, store_regs_temp_##reg##offset);
+
+#define sysfs_temp_offsets(offset) \
+sysfs_temp_offset(offset); \
+sysfs_temp_reg_offset(max, offset); \
+sysfs_temp_reg_offset(max_hyst, offset);
+
+sysfs_temp_offsets(1);
+sysfs_temp_offsets(2);
+sysfs_temp_offsets(3);
+
+#define device_create_file_temp(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
+device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
+device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
+} while (0)
+
+static ssize_t
+show_vid_reg(struct device *dev, char *buf)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+
+static
+DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+#define device_create_file_vid(client) \
+device_create_file(&client->dev, &dev_attr_cpu0_vid);
+static ssize_t
+show_vrm_reg(struct device *dev, char *buf)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+
+static ssize_t
+store_vrm_reg(struct device *dev, const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+ data->vrm = val;
+
+ return count;
+}
+
+static
+DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+#define device_create_file_vrm(client) \
+device_create_file(&client->dev, &dev_attr_vrm);
+static ssize_t
+show_alarms_reg(struct device *dev, char *buf)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) ALARMS_FROM_REG(data->alarms));
+}
+
+static
+DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+#define device_create_file_alarms(client) \
+device_create_file(&client->dev, &dev_attr_alarms);
+static ssize_t show_beep_mask (struct device *dev, char *buf)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n",
+ (long)BEEP_MASK_FROM_REG(data->beep_mask, data->type));
+}
+static ssize_t show_beep_enable (struct device *dev, char *buf)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n",
+ (long)BEEP_ENABLE_FROM_REG(data->beep_enable));
+}
+
+#define BEEP_ENABLE 0 /* Store beep_enable */
+#define BEEP_MASK 1 /* Store beep_mask */
+
+static ssize_t
+store_beep_reg(struct device *dev, const char *buf, size_t count,
+ int update_mask)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ u32 val, val2;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
+ data->beep_mask = BEEP_MASK_TO_REG(val, data->type);
+ w83781d_write_value(client, W83781D_REG_BEEP_INTS1,
+ data->beep_mask & 0xff);
+
+ if ((data->type != w83781d) && (data->type != as99127f)) {
+ w83781d_write_value(client, W83781D_REG_BEEP_INTS3,
+ ((data->beep_mask) >> 16) & 0xff);
+ }
+
+ val2 = (data->beep_mask >> 8) & 0x7f;
+ } else { /* We are storing beep_enable */
+ val2 = w83781d_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f;
+ data->beep_enable = BEEP_ENABLE_TO_REG(val);
+ }
+
+ w83781d_write_value(client, W83781D_REG_BEEP_INTS2,
+ val2 | data->beep_enable << 7);
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_beep(REG, reg) \
+static ssize_t show_regs_beep_##reg (struct device *dev, char *buf) \
+{ \
+ return show_beep_##reg(dev, buf); \
+} \
+static ssize_t store_regs_beep_##reg (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_beep_reg(dev, buf, count, BEEP_##REG); \
+} \
+static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, show_regs_beep_##reg, store_regs_beep_##reg);
+
+sysfs_beep(ENABLE, enable);
+sysfs_beep(MASK, mask);
+
+#define device_create_file_beep(client) \
+do { \
+device_create_file(&client->dev, &dev_attr_beep_enable); \
+device_create_file(&client->dev, &dev_attr_beep_mask); \
+} while (0)
+
+static ssize_t
+show_fan_div_reg(struct device *dev, char *buf, int nr)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n",
+ (long) DIV_FROM_REG(data->fan_div[nr - 1]));
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+ determined in part by the fan divisor. This follows the principle of
+ least suprise; the user doesn't expect the fan minimum to change just
+ because the divisor changed. */
+static ssize_t
+store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ unsigned long min;
+ u8 reg;
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ /* Save fan_min */
+ min = FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+
+ data->fan_div[nr] = DIV_TO_REG(val, data->type);
+
+ reg = (w83781d_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+ & (nr==0 ? 0xcf : 0x3f))
+ | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
+ w83781d_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+
+ /* w83781d and as99127f don't have extended divisor bits */
+ if (data->type != w83781d && data->type != as99127f) {
+ reg = (w83781d_read_value(client, W83781D_REG_VBAT)
+ & ~(1 << (5 + nr)))
+ | ((data->fan_div[nr] & 0x04) << (3 + nr));
+ w83781d_write_value(client, W83781D_REG_VBAT, reg);
+ }
+
+ /* Restore fan_min */
+ data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+ w83781d_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_fan_div(offset) \
+static ssize_t show_regs_fan_div_##offset (struct device *dev, char *buf) \
+{ \
+ return show_fan_div_reg(dev, buf, offset); \
+} \
+static ssize_t store_regs_fan_div_##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_fan_div_reg(dev, buf, count, offset - 1); \
+} \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, show_regs_fan_div_##offset, store_regs_fan_div_##offset);
+
+sysfs_fan_div(1);
+sysfs_fan_div(2);
+sysfs_fan_div(3);
+
+#define device_create_file_fan_div(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
+} while (0)
+
+static ssize_t
+show_pwm_reg(struct device *dev, char *buf, int nr)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr - 1]));
+}
+
+static ssize_t
+show_pwmenable_reg(struct device *dev, char *buf, int nr)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->pwmenable[nr - 1]);
+}
+
+static ssize_t
+store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ u32 val;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+ data->pwm[nr - 1] = PWM_TO_REG(val);
+ w83781d_write_value(client, W83781D_REG_PWM(nr), data->pwm[nr - 1]);
+ up(&data->update_lock);
+ return count;
+}
+
+static ssize_t
+store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ u32 val, reg;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ switch (val) {
+ case 0:
+ case 1:
+ reg = w83781d_read_value(client, W83781D_REG_PWMCLK12);
+ w83781d_write_value(client, W83781D_REG_PWMCLK12,
+ (reg & 0xf7) | (val << 3));
+
+ reg = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
+ w83781d_write_value(client, W83781D_REG_BEEP_CONFIG,
+ (reg & 0xef) | (!val << 4));
+
+ data->pwmenable[nr - 1] = val;
+ break;
+
+ default:
+ up(&data->update_lock);
+ return -EINVAL;
+ }
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_pwm(offset) \
+static ssize_t show_regs_pwm_##offset (struct device *dev, char *buf) \
+{ \
+ return show_pwm_reg(dev, buf, offset); \
+} \
+static ssize_t store_regs_pwm_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return store_pwm_reg(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
+ show_regs_pwm_##offset, store_regs_pwm_##offset);
+
+#define sysfs_pwmenable(offset) \
+static ssize_t show_regs_pwmenable_##offset (struct device *dev, char *buf) \
+{ \
+ return show_pwmenable_reg(dev, buf, offset); \
+} \
+static ssize_t store_regs_pwmenable_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return store_pwmenable_reg(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
+ show_regs_pwmenable_##offset, store_regs_pwmenable_##offset);
+
+sysfs_pwm(1);
+sysfs_pwm(2);
+sysfs_pwmenable(2); /* only PWM2 can be enabled/disabled */
+sysfs_pwm(3);
+sysfs_pwm(4);
+
+#define device_create_file_pwm(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_pwm##offset); \
+} while (0)
+
+#define device_create_file_pwmenable(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_pwm##offset##_enable); \
+} while (0)
+
+static ssize_t
+show_sensor_reg(struct device *dev, char *buf, int nr)
+{
+ struct w83781d_data *data = w83781d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]);
+}
+
+static ssize_t
+store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ u32 val, tmp;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ down(&data->update_lock);
+
+ switch (val) {
+ case 1: /* PII/Celeron diode */
+ tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
+ w83781d_write_value(client, W83781D_REG_SCFG1,
+ tmp | BIT_SCFG1[nr - 1]);
+ tmp = w83781d_read_value(client, W83781D_REG_SCFG2);
+ w83781d_write_value(client, W83781D_REG_SCFG2,
+ tmp | BIT_SCFG2[nr - 1]);
+ data->sens[nr - 1] = val;
+ break;
+ case 2: /* 3904 */
+ tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
+ w83781d_write_value(client, W83781D_REG_SCFG1,
+ tmp | BIT_SCFG1[nr - 1]);
+ tmp = w83781d_read_value(client, W83781D_REG_SCFG2);
+ w83781d_write_value(client, W83781D_REG_SCFG2,
+ tmp & ~BIT_SCFG2[nr - 1]);
+ data->sens[nr - 1] = val;
+ break;
+ case W83781D_DEFAULT_BETA: /* thermistor */
+ tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
+ w83781d_write_value(client, W83781D_REG_SCFG1,
+ tmp & ~BIT_SCFG1[nr - 1]);
+ data->sens[nr - 1] = val;
+ break;
+ default:
+ dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or %d\n",
+ (long) val, W83781D_DEFAULT_BETA);
+ break;
+ }
+
+ up(&data->update_lock);
+ return count;
+}
+
+#define sysfs_sensor(offset) \
+static ssize_t show_regs_sensor_##offset (struct device *dev, char *buf) \
+{ \
+ return show_sensor_reg(dev, buf, offset); \
+} \
+static ssize_t store_regs_sensor_##offset (struct device *dev, const char *buf, size_t count) \
+{ \
+ return store_sensor_reg(dev, buf, count, offset); \
+} \
+static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, show_regs_sensor_##offset, store_regs_sensor_##offset);
+
+sysfs_sensor(1);
+sysfs_sensor(2);
+sysfs_sensor(3);
+
+#define device_create_file_sensor(client, offset) \
+do { \
+device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
+} while (0)
+
+/* This function is called when:
+ * w83781d_driver is inserted (when this module is loaded), for each
+ available adapter
+ * when a new adapter is inserted (and w83781d_driver is still present) */
+static int
+w83781d_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, w83781d_detect);
+}
+
+/* Assumes that adapter is of I2C, not ISA variety.
+ * OTHERWISE DON'T CALL THIS
+ */
+static int
+w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
+ struct i2c_client *new_client)
+{
+ int i, val1 = 0, id;
+ int err;
+ const char *client_name = "";
+ struct w83781d_data *data = i2c_get_clientdata(new_client);
+
+ data->lm75[0] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (!(data->lm75[0])) {
+ err = -ENOMEM;
+ goto ERROR_SC_0;
+ }
+ memset(data->lm75[0], 0x00, sizeof (struct i2c_client));
+
+ id = i2c_adapter_id(adapter);
+
+ if (force_subclients[0] == id && force_subclients[1] == address) {
+ for (i = 2; i <= 3; i++) {
+ if (force_subclients[i] < 0x48 ||
+ force_subclients[i] > 0x4f) {
+ dev_err(&new_client->dev, "Invalid subclient "
+ "address %d; must be 0x48-0x4f\n",
+ force_subclients[i]);
+ err = -EINVAL;
+ goto ERROR_SC_1;
+ }
+ }
+ w83781d_write_value(new_client, W83781D_REG_I2C_SUBADDR,
+ (force_subclients[2] & 0x07) |
+ ((force_subclients[3] & 0x07) << 4));
+ data->lm75[0]->addr = force_subclients[2];
+ } else {
+ val1 = w83781d_read_value(new_client, W83781D_REG_I2C_SUBADDR);
+ data->lm75[0]->addr = 0x48 + (val1 & 0x07);
+ }
+
+ if (kind != w83783s) {
+
+ data->lm75[1] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (!(data->lm75[1])) {
+ err = -ENOMEM;
+ goto ERROR_SC_1;
+ }
+ memset(data->lm75[1], 0x0, sizeof(struct i2c_client));
+
+ if (force_subclients[0] == id &&
+ force_subclients[1] == address) {
+ data->lm75[1]->addr = force_subclients[3];
+ } else {
+ data->lm75[1]->addr = 0x48 + ((val1 >> 4) & 0x07);
+ }
+ if (data->lm75[0]->addr == data->lm75[1]->addr) {
+ dev_err(&new_client->dev,
+ "Duplicate addresses 0x%x for subclients.\n",
+ data->lm75[0]->addr);
+ err = -EBUSY;
+ goto ERROR_SC_2;
+ }
+ }
+
+ if (kind == w83781d)
+ client_name = "w83781d subclient";
+ else if (kind == w83782d)
+ client_name = "w83782d subclient";
+ else if (kind == w83783s)
+ client_name = "w83783s subclient";
+ else if (kind == w83627hf)
+ client_name = "w83627hf subclient";
+ else if (kind == as99127f)
+ client_name = "as99127f subclient";
+
+ for (i = 0; i <= 1; i++) {
+ /* store all data in w83781d */
+ i2c_set_clientdata(data->lm75[i], NULL);
+ data->lm75[i]->adapter = adapter;
+ data->lm75[i]->driver = &w83781d_driver;
+ data->lm75[i]->flags = 0;
+ strlcpy(data->lm75[i]->name, client_name,
+ I2C_NAME_SIZE);
+ if ((err = i2c_attach_client(data->lm75[i]))) {
+ dev_err(&new_client->dev, "Subclient %d "
+ "registration at address 0x%x "
+ "failed.\n", i, data->lm75[i]->addr);
+ if (i == 1)
+ goto ERROR_SC_3;
+ goto ERROR_SC_2;
+ }
+ if (kind == w83783s)
+ break;
+ }
+
+ return 0;
+
+/* Undo inits in case of errors */
+ERROR_SC_3:
+ i2c_detach_client(data->lm75[0]);
+ERROR_SC_2:
+ if (NULL != data->lm75[1])
+ kfree(data->lm75[1]);
+ERROR_SC_1:
+ if (NULL != data->lm75[0])
+ kfree(data->lm75[0]);
+ERROR_SC_0:
+ return err;
+}
+
+static int
+w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ int i = 0, val1 = 0, val2;
+ struct i2c_client *new_client;
+ struct w83781d_data *data;
+ int err;
+ const char *client_name = "";
+ int is_isa = i2c_is_isa_adapter(adapter);
+ enum vendor { winbond, asus } vendid;
+
+ if (!is_isa
+ && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+ err = -EINVAL;
+ goto ERROR0;
+ }
+
+ /* Prevent users from forcing a kind for a bus it isn't supposed
+ to possibly be on */
+ if (is_isa && (kind == as99127f || kind == w83783s)) {
+ dev_err(&adapter->dev,
+ "Cannot force I2C-only chip for ISA address 0x%02x.\n",
+ address);
+ err = -EINVAL;
+ goto ERROR0;
+ }
+ if (!is_isa && kind == w83697hf) {
+ dev_err(&adapter->dev,
+ "Cannot force ISA-only chip for I2C address 0x%02x.\n",
+ address);
+ err = -EINVAL;
+ goto ERROR0;
+ }
+
+ if (is_isa)
+ if (!request_region(address, W83781D_EXTENT,
+ w83781d_driver.name)) {
+ dev_dbg(&adapter->dev, "Request of region "
+ "0x%x-0x%x for w83781d failed\n", address,
+ address + W83781D_EXTENT - 1);
+ err = -EBUSY;
+ goto ERROR0;
+ }
+
+ /* Probe whether there is anything available on this address. Already
+ done for SMBus clients */
+ if (kind < 0) {
+ if (is_isa) {
+
+#define REALLY_SLOW_IO
+ /* We need the timeouts for at least some LM78-like
+ chips. But only if we read 'undefined' registers. */
+ i = inb_p(address + 1);
+ if (inb_p(address + 2) != i
+ || inb_p(address + 3) != i
+ || inb_p(address + 7) != i) {
+ dev_dbg(&adapter->dev, "Detection of w83781d "
+ "chip failed at step 1\n");
+ err = -ENODEV;
+ goto ERROR1;
+ }
+#undef REALLY_SLOW_IO
+
+ /* Let's just hope nothing breaks here */
+ i = inb_p(address + 5) & 0x7f;
+ outb_p(~i & 0x7f, address + 5);
+ val2 = inb_p(address + 5) & 0x7f;
+ if (val2 != (~i & 0x7f)) {
+ outb_p(i, address + 5);
+ dev_dbg(&adapter->dev, "Detection of w83781d "
+ "chip failed at step 2 (0x%x != "
+ "0x%x at 0x%x)\n", val2, ~i & 0x7f,
+ address + 5);
+ err = -ENODEV;
+ goto ERROR1;
+ }
+ }
+ }
+
+ /* OK. For now, we presume we have a valid client. We now create the
+ client structure, even though we cannot fill it completely yet.
+ But it allows us to access w83781d_{read,write}_value. */
+
+ if (!(data = kmalloc(sizeof(struct w83781d_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto ERROR1;
+ }
+ memset(data, 0, sizeof(struct w83781d_data));
+
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ init_MUTEX(&data->lock);
+ new_client->adapter = adapter;
+ new_client->driver = &w83781d_driver;
+ new_client->flags = 0;
+
+ /* Now, we do the remaining detection. */
+
+ /* The w8378?d may be stuck in some other bank than bank 0. This may
+ make reading other information impossible. Specify a force=... or
+ force_*=... parameter, and the Winbond will be reset to the right
+ bank. */
+ if (kind < 0) {
+ if (w83781d_read_value(new_client, W83781D_REG_CONFIG) & 0x80) {
+ dev_dbg(&new_client->dev, "Detection failed at step "
+ "3\n");
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ val1 = w83781d_read_value(new_client, W83781D_REG_BANK);
+ val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
+ /* Check for Winbond or Asus ID if in bank 0 */
+ if ((!(val1 & 0x07)) &&
+ (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3))
+ || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) {
+ dev_dbg(&new_client->dev, "Detection failed at step "
+ "4\n");
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ /* If Winbond SMBus, check address at 0x48.
+ Asus doesn't support, except for as99127f rev.2 */
+ if ((!is_isa) && (((!(val1 & 0x80)) && (val2 == 0xa3)) ||
+ ((val1 & 0x80) && (val2 == 0x5c)))) {
+ if (w83781d_read_value
+ (new_client, W83781D_REG_I2C_ADDR) != address) {
+ dev_dbg(&new_client->dev, "Detection failed "
+ "at step 5\n");
+ err = -ENODEV;
+ goto ERROR2;
+ }
+ }
+ }
+
+ /* We have either had a force parameter, or we have already detected the
+ Winbond. Put it now into bank 0 and Vendor ID High Byte */
+ w83781d_write_value(new_client, W83781D_REG_BANK,
+ (w83781d_read_value(new_client,
+ W83781D_REG_BANK) & 0x78) |
+ 0x80);
+
+ /* Determine the chip type. */
+ if (kind <= 0) {
+ /* get vendor ID */
+ val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
+ if (val2 == 0x5c)
+ vendid = winbond;
+ else if (val2 == 0x12)
+ vendid = asus;
+ else {
+ dev_dbg(&new_client->dev, "Chip was made by neither "
+ "Winbond nor Asus?\n");
+ err = -ENODEV;
+ goto ERROR2;
+ }
+
+ val1 = w83781d_read_value(new_client, W83781D_REG_WCHIPID);
+ if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond)
+ kind = w83781d;
+ else if (val1 == 0x30 && vendid == winbond)
+ kind = w83782d;
+ else if (val1 == 0x40 && vendid == winbond && !is_isa
+ && address == 0x2d)
+ kind = w83783s;
+ else if ((val1 == 0x21 || val1 == 0x90) && vendid == winbond)
+ kind = w83627hf;
+ else if (val1 == 0x31 && !is_isa && address >= 0x28)
+ kind = as99127f;
+ else if (val1 == 0x60 && vendid == winbond && is_isa)
+ kind = w83697hf;
+ else {
+ if (kind == 0)
+ dev_warn(&new_client->dev, "Ignoring 'force' "
+ "parameter for unknown chip at "
+ "adapter %d, address 0x%02x\n",
+ i2c_adapter_id(adapter), address);
+ err = -EINVAL;
+ goto ERROR2;
+ }
+ }
+
+ if (kind == w83781d) {
+ client_name = "w83781d";
+ } else if (kind == w83782d) {
+ client_name = "w83782d";
+ } else if (kind == w83783s) {
+ client_name = "w83783s";
+ } else if (kind == w83627hf) {
+ if (val1 == 0x90)
+ client_name = "w83627thf";
+ else
+ client_name = "w83627hf";
+ } else if (kind == as99127f) {
+ client_name = "as99127f";
+ } else if (kind == w83697hf) {
+ client_name = "w83697hf";
+ }
+
+ /* Fill in the remaining client fields and put into the global list */
+ strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
+ data->type = kind;
+
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(new_client)))
+ goto ERROR2;
+
+ /* attach secondary i2c lm75-like clients */
+ if (!is_isa) {
+ if ((err = w83781d_detect_subclients(adapter, address,
+ kind, new_client)))
+ goto ERROR3;
+ } else {
+ data->lm75[0] = NULL;
+ data->lm75[1] = NULL;
+ }
+
+ /* Initialize the chip */
+ w83781d_init_client(new_client);
+
+ /* A few vars need to be filled upon startup */
+ for (i = 1; i <= 3; i++) {
+ data->fan_min[i - 1] = w83781d_read_value(new_client,
+ W83781D_REG_FAN_MIN(i));
+ }
+ if (kind != w83781d && kind != as99127f)
+ for (i = 0; i < 4; i++)
+ data->pwmenable[i] = 1;
+
+ /* Register sysfs hooks */
+ device_create_file_in(new_client, 0);
+ if (kind != w83783s && kind != w83697hf)
+ device_create_file_in(new_client, 1);
+ device_create_file_in(new_client, 2);
+ device_create_file_in(new_client, 3);
+ device_create_file_in(new_client, 4);
+ device_create_file_in(new_client, 5);
+ device_create_file_in(new_client, 6);
+ if (kind != as99127f && kind != w83781d && kind != w83783s) {
+ device_create_file_in(new_client, 7);
+ device_create_file_in(new_client, 8);
+ }
+
+ device_create_file_fan(new_client, 1);
+ device_create_file_fan(new_client, 2);
+ if (kind != w83697hf)
+ device_create_file_fan(new_client, 3);
+
+ device_create_file_temp(new_client, 1);
+ device_create_file_temp(new_client, 2);
+ if (kind != w83783s && kind != w83697hf)
+ device_create_file_temp(new_client, 3);
+
+ if (kind != w83697hf)
+ device_create_file_vid(new_client);
+
+ if (kind != w83697hf)
+ device_create_file_vrm(new_client);
+
+ device_create_file_fan_div(new_client, 1);
+ device_create_file_fan_div(new_client, 2);
+ if (kind != w83697hf)
+ device_create_file_fan_div(new_client, 3);
+
+ device_create_file_alarms(new_client);
+
+ device_create_file_beep(new_client);
+
+ if (kind != w83781d && kind != as99127f) {
+ device_create_file_pwm(new_client, 1);
+ device_create_file_pwm(new_client, 2);
+ device_create_file_pwmenable(new_client, 2);
+ }
+ if (kind == w83782d && !is_isa) {
+ device_create_file_pwm(new_client, 3);
+ device_create_file_pwm(new_client, 4);
+ }
+
+ if (kind != as99127f && kind != w83781d) {
+ device_create_file_sensor(new_client, 1);
+ device_create_file_sensor(new_client, 2);
+ if (kind != w83783s && kind != w83697hf)
+ device_create_file_sensor(new_client, 3);
+ }
+
+ return 0;
+
+ERROR3:
+ i2c_detach_client(new_client);
+ERROR2:
+ kfree(data);
+ERROR1:
+ if (is_isa)
+ release_region(address, W83781D_EXTENT);
+ERROR0:
+ return err;
+}
+
+static int
+w83781d_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if (i2c_is_isa_client(client))
+ release_region(client->addr, W83781D_EXTENT);
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev,
+ "Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
+ if (i2c_get_clientdata(client)==NULL) {
+ /* subclients */
+ kfree(client);
+ } else {
+ /* main client */
+ kfree(i2c_get_clientdata(client));
+ }
+
+ return 0;
+}
+
+/* The SMBus locks itself, usually, but nothing may access the Winbond between
+ bank switches. ISA access must always be locked explicitly!
+ We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
+ would slow down the W83781D access and should not be necessary.
+ There are some ugly typecasts here, but the good news is - they should
+ nowhere else be necessary! */
+static int
+w83781d_read_value(struct i2c_client *client, u16 reg)
+{
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ int res, word_sized, bank;
+ struct i2c_client *cl;
+
+ down(&data->lock);
+ if (i2c_is_isa_client(client)) {
+ word_sized = (((reg & 0xff00) == 0x100)
+ || ((reg & 0xff00) == 0x200))
+ && (((reg & 0x00ff) == 0x50)
+ || ((reg & 0x00ff) == 0x53)
+ || ((reg & 0x00ff) == 0x55));
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(reg >> 8,
+ client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
+ res = inb_p(client->addr + W83781D_DATA_REG_OFFSET);
+ if (word_sized) {
+ outb_p((reg & 0xff) + 1,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ res =
+ (res << 8) + inb_p(client->addr +
+ W83781D_DATA_REG_OFFSET);
+ }
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ } else {
+ bank = (reg >> 8) & 0x0f;
+ if (bank > 2)
+ /* switch banks */
+ i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+ bank);
+ if (bank == 0 || bank > 2) {
+ res = i2c_smbus_read_byte_data(client, reg & 0xff);
+ } else {
+ /* switch to subclient */
+ cl = data->lm75[bank - 1];
+ /* convert from ISA to LM75 I2C addresses */
+ switch (reg & 0xff) {
+ case 0x50: /* TEMP */
+ res = swab16(i2c_smbus_read_word_data(cl, 0));
+ break;
+ case 0x52: /* CONFIG */
+ res = i2c_smbus_read_byte_data(cl, 1);
+ break;
+ case 0x53: /* HYST */
+ res = swab16(i2c_smbus_read_word_data(cl, 2));
+ break;
+ case 0x55: /* OVER */
+ default:
+ res = swab16(i2c_smbus_read_word_data(cl, 3));
+ break;
+ }
+ }
+ if (bank > 2)
+ i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0);
+ }
+ up(&data->lock);
+ return res;
+}
+
+static int
+w83781d_write_value(struct i2c_client *client, u16 reg, u16 value)
+{
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ int word_sized, bank;
+ struct i2c_client *cl;
+
+ down(&data->lock);
+ if (i2c_is_isa_client(client)) {
+ word_sized = (((reg & 0xff00) == 0x100)
+ || ((reg & 0xff00) == 0x200))
+ && (((reg & 0x00ff) == 0x53)
+ || ((reg & 0x00ff) == 0x55));
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(reg >> 8,
+ client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
+ if (word_sized) {
+ outb_p(value >> 8,
+ client->addr + W83781D_DATA_REG_OFFSET);
+ outb_p((reg & 0xff) + 1,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ }
+ outb_p(value & 0xff, client->addr + W83781D_DATA_REG_OFFSET);
+ if (reg & 0xff00) {
+ outb_p(W83781D_REG_BANK,
+ client->addr + W83781D_ADDR_REG_OFFSET);
+ outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
+ }
+ } else {
+ bank = (reg >> 8) & 0x0f;
+ if (bank > 2)
+ /* switch banks */
+ i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+ bank);
+ if (bank == 0 || bank > 2) {
+ i2c_smbus_write_byte_data(client, reg & 0xff,
+ value & 0xff);
+ } else {
+ /* switch to subclient */
+ cl = data->lm75[bank - 1];
+ /* convert from ISA to LM75 I2C addresses */
+ switch (reg & 0xff) {
+ case 0x52: /* CONFIG */
+ i2c_smbus_write_byte_data(cl, 1, value & 0xff);
+ break;
+ case 0x53: /* HYST */
+ i2c_smbus_write_word_data(cl, 2, swab16(value));
+ break;
+ case 0x55: /* OVER */
+ i2c_smbus_write_word_data(cl, 3, swab16(value));
+ break;
+ }
+ }
+ if (bank > 2)
+ i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0);
+ }
+ up(&data->lock);
+ return 0;
+}
+
+/* Called when we have found a new W83781D. It should set limits, etc. */
+static void
+w83781d_init_client(struct i2c_client *client)
+{
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ int i, p;
+ int type = data->type;
+ u8 tmp;
+
+ if (init && type != as99127f) { /* this resets registers we don't have
+ documentation for on the as99127f */
+ /* save these registers */
+ i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
+ p = w83781d_read_value(client, W83781D_REG_PWMCLK12);
+ /* Reset all except Watchdog values and last conversion values
+ This sets fan-divs to 2, among others */
+ w83781d_write_value(client, W83781D_REG_CONFIG, 0x80);
+ /* Restore the registers and disable power-on abnormal beep.
+ This saves FAN 1/2/3 input/output values set by BIOS. */
+ w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
+ w83781d_write_value(client, W83781D_REG_PWMCLK12, p);
+ /* Disable master beep-enable (reset turns it on).
+ Individual beep_mask should be reset to off but for some reason
+ disabling this bit helps some people not get beeped */
+ w83781d_write_value(client, W83781D_REG_BEEP_INTS2, 0);
+ }
+
+ data->vrm = i2c_which_vrm();
+
+ if ((type != w83781d) && (type != as99127f)) {
+ tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
+ for (i = 1; i <= 3; i++) {
+ if (!(tmp & BIT_SCFG1[i - 1])) {
+ data->sens[i - 1] = W83781D_DEFAULT_BETA;
+ } else {
+ if (w83781d_read_value
+ (client,
+ W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
+ data->sens[i - 1] = 1;
+ else
+ data->sens[i - 1] = 2;
+ }
+ if ((type == w83783s || type == w83697hf) && (i == 2))
+ break;
+ }
+ }
+
+ if (init && type != as99127f) {
+ /* Enable temp2 */
+ tmp = w83781d_read_value(client, W83781D_REG_TEMP2_CONFIG);
+ if (tmp & 0x01) {
+ dev_warn(&client->dev, "Enabling temp2, readings "
+ "might not make sense\n");
+ w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG,
+ tmp & 0xfe);
+ }
+
+ /* Enable temp3 */
+ if (type != w83783s && type != w83697hf) {
+ tmp = w83781d_read_value(client,
+ W83781D_REG_TEMP3_CONFIG);
+ if (tmp & 0x01) {
+ dev_warn(&client->dev, "Enabling temp3, "
+ "readings might not make sense\n");
+ w83781d_write_value(client,
+ W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
+ }
+ }
+
+ if (type != w83781d) {
+ /* enable comparator mode for temp2 and temp3 so
+ alarm indication will work correctly */
+ i = w83781d_read_value(client, W83781D_REG_IRQ);
+ if (!(i & 0x40))
+ w83781d_write_value(client, W83781D_REG_IRQ,
+ i | 0x40);
+ }
+ }
+
+ /* Start monitoring */
+ w83781d_write_value(client, W83781D_REG_CONFIG,
+ (w83781d_read_value(client,
+ W83781D_REG_CONFIG) & 0xf7)
+ | 0x01);
+}
+
+static struct w83781d_data *w83781d_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83781d_data *data = i2c_get_clientdata(client);
+ int i;
+
+ down(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ dev_dbg(dev, "Starting device update\n");
+
+ for (i = 0; i <= 8; i++) {
+ if ((data->type == w83783s || data->type == w83697hf)
+ && (i == 1))
+ continue; /* 783S has no in1 */
+ data->in[i] =
+ w83781d_read_value(client, W83781D_REG_IN(i));
+ data->in_min[i] =
+ w83781d_read_value(client, W83781D_REG_IN_MIN(i));
+ data->in_max[i] =
+ w83781d_read_value(client, W83781D_REG_IN_MAX(i));
+ if ((data->type != w83782d) && (data->type != w83697hf)
+ && (data->type != w83627hf) && (i == 6))
+ break;
+ }
+ for (i = 1; i <= 3; i++) {
+ data->fan[i - 1] =
+ w83781d_read_value(client, W83781D_REG_FAN(i));
+ data->fan_min[i - 1] =
+ w83781d_read_value(client, W83781D_REG_FAN_MIN(i));
+ }
+ if (data->type != w83781d && data->type != as99127f) {
+ for (i = 1; i <= 4; i++) {
+ data->pwm[i - 1] =
+ w83781d_read_value(client,
+ W83781D_REG_PWM(i));
+ if ((data->type != w83782d
+ || i2c_is_isa_client(client))
+ && i == 2)
+ break;
+ }
+ /* Only PWM2 can be disabled */
+ data->pwmenable[1] = (w83781d_read_value(client,
+ W83781D_REG_PWMCLK12) & 0x08) >> 3;
+ }
+
+ data->temp = w83781d_read_value(client, W83781D_REG_TEMP(1));
+ data->temp_max =
+ w83781d_read_value(client, W83781D_REG_TEMP_OVER(1));
+ data->temp_max_hyst =
+ w83781d_read_value(client, W83781D_REG_TEMP_HYST(1));
+ data->temp_add[0] =
+ w83781d_read_value(client, W83781D_REG_TEMP(2));
+ data->temp_max_add[0] =
+ w83781d_read_value(client, W83781D_REG_TEMP_OVER(2));
+ data->temp_max_hyst_add[0] =
+ w83781d_read_value(client, W83781D_REG_TEMP_HYST(2));
+ if (data->type != w83783s && data->type != w83697hf) {
+ data->temp_add[1] =
+ w83781d_read_value(client, W83781D_REG_TEMP(3));
+ data->temp_max_add[1] =
+ w83781d_read_value(client,
+ W83781D_REG_TEMP_OVER(3));
+ data->temp_max_hyst_add[1] =
+ w83781d_read_value(client,
+ W83781D_REG_TEMP_HYST(3));
+ }
+ i = w83781d_read_value(client, W83781D_REG_VID_FANDIV);
+ if (data->type != w83697hf) {
+ data->vid = i & 0x0f;
+ data->vid |=
+ (w83781d_read_value(client, W83781D_REG_CHIPID) &
+ 0x01)
+ << 4;
+ }
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = (i >> 6) & 0x03;
+ if (data->type != w83697hf) {
+ data->fan_div[2] = (w83781d_read_value(client,
+ W83781D_REG_PIN)
+ >> 6) & 0x03;
+ }
+ if ((data->type != w83781d) && (data->type != as99127f)) {
+ i = w83781d_read_value(client, W83781D_REG_VBAT);
+ data->fan_div[0] |= (i >> 3) & 0x04;
+ data->fan_div[1] |= (i >> 4) & 0x04;
+ if (data->type != w83697hf)
+ data->fan_div[2] |= (i >> 5) & 0x04;
+ }
+ data->alarms =
+ w83781d_read_value(client,
+ W83781D_REG_ALARM1) +
+ (w83781d_read_value(client, W83781D_REG_ALARM2) << 8);
+ if ((data->type == w83782d) || (data->type == w83627hf)) {
+ data->alarms |=
+ w83781d_read_value(client,
+ W83781D_REG_ALARM3) << 16;
+ }
+ i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2);
+ data->beep_enable = i >> 7;
+ data->beep_mask = ((i & 0x7f) << 8) +
+ w83781d_read_value(client, W83781D_REG_BEEP_INTS1);
+ if ((data->type != w83781d) && (data->type != as99127f)) {
+ data->beep_mask |=
+ w83781d_read_value(client,
+ W83781D_REG_BEEP_INTS3) << 16;
+ }
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init
+sensors_w83781d_init(void)
+{
+ return i2c_add_driver(&w83781d_driver);
+}
+
+static void __exit
+sensors_w83781d_exit(void)
+{
+ i2c_del_driver(&w83781d_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+ "Philip Edelbrock <phil@netroedge.com>, "
+ "and Mark Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("W83781D driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83781d_init);
+module_exit(sensors_w83781d_exit);
diff --git a/drivers/i2c/chips/w83l785ts.c b/drivers/i2c/chips/w83l785ts.c
new file mode 100644
index 0000000..59bbc58
--- /dev/null
+++ b/drivers/i2c/chips/w83l785ts.c
@@ -0,0 +1,329 @@
+/*
+ * w83l785ts.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
+ *
+ * Inspired from the lm83 driver. The W83L785TS-S is a sensor chip made
+ * by Winbond. It reports a single external temperature with a 1 deg
+ * resolution and a 3 deg accuracy. Datasheet can be obtained from
+ * Winbond's website at:
+ * http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L785TS-S.pdf
+ *
+ * Ported to Linux 2.6 by Wolfgang Ziegler <nuppla@gmx.at> and Jean Delvare
+ * <khali@linux-fr.org>.
+ *
+ * Thanks to James Bolt <james@evilpenguin.com> for benchmarking the read
+ * error handling mechanism.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+
+/* How many retries on register read error */
+#define MAX_RETRIES 5
+
+/*
+ * Address to scan
+ * Address is fully defined internally and cannot be changed.
+ */
+
+static unsigned short normal_i2c[] = { 0x2e, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/*
+ * Insmod parameters
+ */
+
+SENSORS_INSMOD_1(w83l785ts);
+
+/*
+ * The W83L785TS-S registers
+ * Manufacturer ID is 0x5CA3 for Winbond.
+ */
+
+#define W83L785TS_REG_MAN_ID1 0x4D
+#define W83L785TS_REG_MAN_ID2 0x4C
+#define W83L785TS_REG_CHIP_ID 0x4E
+#define W83L785TS_REG_CONFIG 0x40
+#define W83L785TS_REG_TYPE 0x52
+#define W83L785TS_REG_TEMP 0x27
+#define W83L785TS_REG_TEMP_OVER 0x53 /* not sure about this one */
+
+/*
+ * Conversions
+ * The W83L785TS-S uses signed 8-bit values.
+ */
+
+#define TEMP_FROM_REG(val) ((val & 0x80 ? val-0x100 : val) * 1000)
+
+/*
+ * Functions declaration
+ */
+
+static int w83l785ts_attach_adapter(struct i2c_adapter *adapter);
+static int w83l785ts_detect(struct i2c_adapter *adapter, int address,
+ int kind);
+static int w83l785ts_detach_client(struct i2c_client *client);
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval);
+static struct w83l785ts_data *w83l785ts_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static struct i2c_driver w83l785ts_driver = {
+ .owner = THIS_MODULE,
+ .name = "w83l785ts",
+ .id = I2C_DRIVERID_W83L785TS,
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = w83l785ts_attach_adapter,
+ .detach_client = w83l785ts_detach_client,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct w83l785ts_data {
+ struct i2c_client client;
+ struct semaphore update_lock;
+ char valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* registers values */
+ u8 temp, temp_over;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_temp(struct device *dev, char *buf)
+{
+ struct w83l785ts_data *data = w83l785ts_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));
+}
+
+static ssize_t show_temp_over(struct device *dev, char *buf)
+{
+ struct w83l785ts_data *data = w83l785ts_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_over, NULL);
+
+/*
+ * Real code
+ */
+
+static int w83l785ts_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_detect(adapter, &addr_data, w83l785ts_detect);
+}
+
+/*
+ * The following function does more than just detection. If detection
+ * succeeds, it also registers the new chip.
+ */
+static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *new_client;
+ struct w83l785ts_data *data;
+ int err = 0;
+
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ goto exit;
+
+ if (!(data = kmalloc(sizeof(struct w83l785ts_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ memset(data, 0, sizeof(struct w83l785ts_data));
+
+
+ /* The common I2C client data is placed right before the
+ * W83L785TS-specific data. */
+ new_client = &data->client;
+ i2c_set_clientdata(new_client, data);
+ new_client->addr = address;
+ new_client->adapter = adapter;
+ new_client->driver = &w83l785ts_driver;
+ new_client->flags = 0;
+
+ /*
+ * Now we do the remaining detection. A negative kind means that
+ * the driver was loaded with no force parameter (default), so we
+ * must both detect and identify the chip (actually there is only
+ * one possible kind of chip for now, W83L785TS-S). A zero kind means
+ * that the driver was loaded with the force parameter, the detection
+ * step shall be skipped. A positive kind means that the driver
+ * was loaded with the force parameter and a given kind of chip is
+ * requested, so both the detection and the identification steps
+ * are skipped.
+ */
+ if (kind < 0) { /* detection */
+ if (((w83l785ts_read_value(new_client,
+ W83L785TS_REG_CONFIG, 0) & 0x80) != 0x00)
+ || ((w83l785ts_read_value(new_client,
+ W83L785TS_REG_TYPE, 0) & 0xFC) != 0x00)) {
+ dev_dbg(&adapter->dev,
+ "W83L785TS-S detection failed at 0x%02x.\n",
+ address);
+ goto exit_free;
+ }
+ }
+
+ if (kind <= 0) { /* identification */
+ u16 man_id;
+ u8 chip_id;
+
+ man_id = (w83l785ts_read_value(new_client,
+ W83L785TS_REG_MAN_ID1, 0) << 8) +
+ w83l785ts_read_value(new_client,
+ W83L785TS_REG_MAN_ID2, 0);
+ chip_id = w83l785ts_read_value(new_client,
+ W83L785TS_REG_CHIP_ID, 0);
+
+ if (man_id == 0x5CA3) { /* Winbond */
+ if (chip_id == 0x70) { /* W83L785TS-S */
+ kind = w83l785ts;
+ }
+ }
+
+ if (kind <= 0) { /* identification failed */
+ dev_info(&adapter->dev,
+ "Unsupported chip (man_id=0x%04X, "
+ "chip_id=0x%02X).\n", man_id, chip_id);
+ goto exit_free;
+ }
+ }
+
+ /* We can fill in the remaining client fields. */
+ strlcpy(new_client->name, "w83l785ts", I2C_NAME_SIZE);
+ data->valid = 0;
+ init_MUTEX(&data->update_lock);
+
+ /* Default values in case the first read fails (unlikely). */
+ data->temp_over = data->temp = 0;
+
+ /* Tell the I2C layer a new client has arrived. */
+ if ((err = i2c_attach_client(new_client)))
+ goto exit_free;
+
+ /*
+ * Initialize the W83L785TS chip
+ * Nothing yet, assume it is already started.
+ */
+
+ /* Register sysfs hooks */
+ device_create_file(&new_client->dev, &dev_attr_temp1_input);
+ device_create_file(&new_client->dev, &dev_attr_temp1_max);
+
+ return 0;
+
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int w83l785ts_detach_client(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ dev_err(&client->dev, "Client deregistration failed, "
+ "client not detached.\n");
+ return err;
+ }
+
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
+{
+ int value, i;
+
+ /* Frequent read errors have been reported on Asus boards, so we
+ * retry on read errors. If it still fails (unlikely), return the
+ * default value requested by the caller. */
+ for (i = 1; i <= MAX_RETRIES; i++) {
+ value = i2c_smbus_read_byte_data(client, reg);
+ if (value >= 0) {
+ dev_dbg(&client->dev, "Read 0x%02x from register "
+ "0x%02x.\n", value, reg);
+ return value;
+ }
+ dev_dbg(&client->dev, "Read failed, will retry in %d.\n", i);
+ msleep(i);
+ }
+
+ dev_err(&client->dev, "Couldn't read value from register 0x%02x. "
+ "Please report.\n", reg);
+ return defval;
+}
+
+static struct w83l785ts_data *w83l785ts_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83l785ts_data *data = i2c_get_clientdata(client);
+
+ down(&data->update_lock);
+
+ if (!data->valid || time_after(jiffies, data->last_updated + HZ * 2)) {
+ dev_dbg(&client->dev, "Updating w83l785ts data.\n");
+ data->temp = w83l785ts_read_value(client,
+ W83L785TS_REG_TEMP, data->temp);
+ data->temp_over = w83l785ts_read_value(client,
+ W83L785TS_REG_TEMP_OVER, data->temp_over);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ up(&data->update_lock);
+
+ return data;
+}
+
+static int __init sensors_w83l785ts_init(void)
+{
+ return i2c_add_driver(&w83l785ts_driver);
+}
+
+static void __exit sensors_w83l785ts_exit(void)
+{
+ i2c_del_driver(&w83l785ts_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("W83L785TS-S driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83l785ts_init);
+module_exit(sensors_w83l785ts_exit);