Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (32 commits)
Move N014, N051 and CR620 dmi information to load scm dmi table
drivers/platform/x86/eeepc-wmi.c: fix build warning
X86 platfrom wmi: Add debug facility to dump WMI data in a readable way
X86 platform wmi: Also log GUID string when an event happens and debug is set
X86 platform wmi: Introduce debug param to log all WMI events
Clean up all objects used by scm model when driver initial fail or exit
msi-laptop: fix up some coding style issues found by checkpatch
msi-laptop: Add i8042 filter to sync sw state with BIOS when function key pressed
msi-laptop: Set rfkill init state when msi-laptop intiial
msi-laptop: Add MSI CR620 notebook dmi information to scm models table
msi-laptop: Add N014 N051 dmi information to scm models table
drivers/platform/x86: Use kmemdup
drivers/platform/x86: Use kzalloc
drivers/platform/x86: Clarify the MRST IPC driver description slightly
eeepc-wmi: depends on BACKLIGHT_CLASS_DEVICE
IPC driver for Intel Mobile Internet Device (MID) platforms
classmate-laptop: Add RFKILL support.
thinkpad-acpi: document backlight level writeback at driver init
thinkpad-acpi: clean up ACPI handles handling
thinkpad-acpi: don't depend on led_path for led firmware type (v2)
...
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index 39c0a09..fc15538 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -292,13 +292,13 @@
Warning: when in NVRAM mode, the volume up/down/mute
keys are synthesized according to changes in the mixer,
- so you have to use volume up or volume down to unmute,
- as per the ThinkPad volume mixer user interface. When
- in ACPI event mode, volume up/down/mute are reported as
- separate events, but this behaviour may be corrected in
- future releases of this driver, in which case the
- ThinkPad volume mixer user interface semantics will be
- enforced.
+ which uses a single volume up or volume down hotkey
+ press to unmute, as per the ThinkPad volume mixer user
+ interface. When in ACPI event mode, volume up/down/mute
+ events are reported by the firmware and can behave
+ differently (and that behaviour changes with firmware
+ version -- not just with firmware models -- as well as
+ OSI(Linux) state).
hotkey_poll_freq:
frequency in Hz for hot key polling. It must be between
@@ -309,7 +309,7 @@
will cause hot key presses that require NVRAM polling
to never be reported.
- Setting hotkey_poll_freq too low will cause repeated
+ Setting hotkey_poll_freq too low may cause repeated
pressings of the same hot key to be misreported as a
single key press, or to not even be detected at all.
The recommended polling frequency is 10Hz.
@@ -397,6 +397,7 @@
event code Key Notes
0x1001 0x00 FN+F1 -
+
0x1002 0x01 FN+F2 IBM: battery (rare)
Lenovo: Screen lock
@@ -404,7 +405,8 @@
this hot key, even with hot keys
disabled or with Fn+F3 masked
off
- IBM: screen lock
+ IBM: screen lock, often turns
+ off the ThinkLight as side-effect
Lenovo: battery
0x1004 0x03 FN+F4 Sleep button (ACPI sleep button
@@ -433,7 +435,8 @@
Do you feel lucky today?
0x1008 0x07 FN+F8 IBM: toggle screen expand
- Lenovo: configure UltraNav
+ Lenovo: configure UltraNav,
+ or toggle screen expand
0x1009 0x08 FN+F9 -
.. .. ..
@@ -444,7 +447,7 @@
either through the ACPI event,
or through a hotkey event.
The firmware may refuse to
- generate further FN+F4 key
+ generate further FN+F12 key
press events until a S3 or S4
ACPI sleep cycle is performed,
or some time passes.
@@ -512,15 +515,19 @@
SW_RFKILL_ALL T60 and later hardware rfkill rocker switch
SW_TABLET_MODE Tablet ThinkPads HKEY events 0x5009 and 0x500A
-Non hot-key ACPI HKEY event map:
+Non hotkey ACPI HKEY event map:
+-------------------------------
+
+Events that are not propagated by the driver, except for legacy
+compatibility purposes when hotkey_report_mode is set to 1:
+
0x5001 Lid closed
0x5002 Lid opened
0x5009 Tablet swivel: switched to tablet mode
0x500A Tablet swivel: switched to normal mode
0x7000 Radio Switch may have changed state
-The above events are not propagated by the driver, except for legacy
-compatibility purposes when hotkey_report_mode is set to 1.
+Events that are never propagated by the driver:
0x2304 System is waking up from suspend to undock
0x2305 System is waking up from suspend to eject bay
@@ -528,14 +535,39 @@
0x2405 System is waking up from hibernation to eject bay
0x5010 Brightness level changed/control event
-The above events are never propagated by the driver.
+Events that are propagated by the driver to userspace:
+0x2313 ALARM: System is waking up from suspend because
+ the battery is nearly empty
+0x2413 ALARM: System is waking up from hibernation because
+ the battery is nearly empty
0x3003 Bay ejection (see 0x2x05) complete, can sleep again
+0x3006 Bay hotplug request (hint to power up SATA link when
+ the optical drive tray is ejected)
0x4003 Undocked (see 0x2x04), can sleep again
0x500B Tablet pen inserted into its storage bay
0x500C Tablet pen removed from its storage bay
+0x6011 ALARM: battery is too hot
+0x6012 ALARM: battery is extremely hot
+0x6021 ALARM: a sensor is too hot
+0x6022 ALARM: a sensor is extremely hot
+0x6030 System thermal table changed
-The above events are propagated by the driver.
+Battery nearly empty alarms are a last resort attempt to get the
+operating system to hibernate or shutdown cleanly (0x2313), or shutdown
+cleanly (0x2413) before power is lost. They must be acted upon, as the
+wake up caused by the firmware will have negated most safety nets...
+
+When any of the "too hot" alarms happen, according to Lenovo the user
+should suspend or hibernate the laptop (and in the case of battery
+alarms, unplug the AC adapter) to let it cool down. These alarms do
+signal that something is wrong, they should never happen on normal
+operating conditions.
+
+The "extremely hot" alarms are emergencies. According to Lenovo, the
+operating system is to force either an immediate suspend or hibernate
+cycle, or a system shutdown. Obviously, something is very wrong if this
+happens.
Compatibility notes:
diff --git a/arch/x86/include/asm/intel_scu_ipc.h b/arch/x86/include/asm/intel_scu_ipc.h
new file mode 100644
index 0000000..4470c9a
--- /dev/null
+++ b/arch/x86/include/asm/intel_scu_ipc.h
@@ -0,0 +1,55 @@
+#ifndef _ASM_X86_INTEL_SCU_IPC_H_
+#define _ASM_X86_INTEL_SCU_IPC_H_
+
+/* Read single register */
+int intel_scu_ipc_ioread8(u16 addr, u8 *data);
+
+/* Read two sequential registers */
+int intel_scu_ipc_ioread16(u16 addr, u16 *data);
+
+/* Read four sequential registers */
+int intel_scu_ipc_ioread32(u16 addr, u32 *data);
+
+/* Read a vector */
+int intel_scu_ipc_readv(u16 *addr, u8 *data, int len);
+
+/* Write single register */
+int intel_scu_ipc_iowrite8(u16 addr, u8 data);
+
+/* Write two sequential registers */
+int intel_scu_ipc_iowrite16(u16 addr, u16 data);
+
+/* Write four sequential registers */
+int intel_scu_ipc_iowrite32(u16 addr, u32 data);
+
+/* Write a vector */
+int intel_scu_ipc_writev(u16 *addr, u8 *data, int len);
+
+/* Update single register based on the mask */
+int intel_scu_ipc_update_register(u16 addr, u8 data, u8 mask);
+
+/*
+ * Indirect register read
+ * Can be used when SCCB(System Controller Configuration Block) register
+ * HRIM(Honor Restricted IPC Messages) is set (bit 23)
+ */
+int intel_scu_ipc_register_read(u32 addr, u32 *data);
+
+/*
+ * Indirect register write
+ * Can be used when SCCB(System Controller Configuration Block) register
+ * HRIM(Honor Restricted IPC Messages) is set (bit 23)
+ */
+int intel_scu_ipc_register_write(u32 addr, u32 data);
+
+/* Issue commands to the SCU with or without data */
+int intel_scu_ipc_simple_command(int cmd, int sub);
+int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
+ u32 *out, int outlen);
+/* I2C control api */
+int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data);
+
+/* Update FW version */
+int intel_scu_ipc_fw_update(u8 *buffer, u32 length);
+
+#endif
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 6c3320d..3e1b8a2 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -390,6 +390,7 @@
depends on ACPI_WMI
depends on INPUT
depends on EXPERIMENTAL
+ depends on BACKLIGHT_CLASS_DEVICE
select INPUT_SPARSEKMAP
---help---
Say Y here if you want to support WMI-based hotkeys on Eee PC laptops.
@@ -527,4 +528,13 @@
keys as input device, backlight device, tablet and accelerometer
devices.
+config INTEL_SCU_IPC
+ bool "Intel SCU IPC Support"
+ depends on X86_MRST
+ default y
+ ---help---
+ IPC is used to bridge the communications between kernel and SCU on
+ some embedded Intel x86 platforms. This is not needed for PC-type
+ machines.
+
endif # X86_PLATFORM_DEVICES
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index a906490..8770bfe 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -25,3 +25,4 @@
obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
obj-$(CONFIG_TOSHIBA_BT_RFKILL) += toshiba_bluetooth.o
+obj-$(CONFIG_INTEL_SCU_IPC) += intel_scu_ipc.o
diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
index 7f9e5dd..3bf399f 100644
--- a/drivers/platform/x86/classmate-laptop.c
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -24,6 +24,7 @@
#include <acpi/acpi_drivers.h>
#include <linux/backlight.h>
#include <linux/input.h>
+#include <linux/rfkill.h>
MODULE_LICENSE("GPL");
@@ -37,7 +38,7 @@
#define CMPC_ACCEL_HID "ACCE0000"
#define CMPC_TABLET_HID "TBLT0000"
-#define CMPC_BL_HID "IPML200"
+#define CMPC_IPML_HID "IPML200"
#define CMPC_KEYS_HID "FnBT0000"
/*
@@ -461,43 +462,168 @@
.update_status = cmpc_bl_update_status
};
-static int cmpc_bl_add(struct acpi_device *acpi)
+/*
+ * RFKILL code.
+ */
+
+static acpi_status cmpc_get_rfkill_wlan(acpi_handle handle,
+ unsigned long long *value)
{
- struct backlight_properties props;
+ union acpi_object param;
+ struct acpi_object_list input;
+ unsigned long long output;
+ acpi_status status;
+
+ param.type = ACPI_TYPE_INTEGER;
+ param.integer.value = 0xC1;
+ input.count = 1;
+ input.pointer = ¶m;
+ status = acpi_evaluate_integer(handle, "GRDI", &input, &output);
+ if (ACPI_SUCCESS(status))
+ *value = output;
+ return status;
+}
+
+static acpi_status cmpc_set_rfkill_wlan(acpi_handle handle,
+ unsigned long long value)
+{
+ union acpi_object param[2];
+ struct acpi_object_list input;
+ acpi_status status;
+ unsigned long long output;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0xC1;
+ param[1].type = ACPI_TYPE_INTEGER;
+ param[1].integer.value = value;
+ input.count = 2;
+ input.pointer = param;
+ status = acpi_evaluate_integer(handle, "GWRI", &input, &output);
+ return status;
+}
+
+static void cmpc_rfkill_query(struct rfkill *rfkill, void *data)
+{
+ acpi_status status;
+ acpi_handle handle;
+ unsigned long long state;
+ bool blocked;
+
+ handle = data;
+ status = cmpc_get_rfkill_wlan(handle, &state);
+ if (ACPI_SUCCESS(status)) {
+ blocked = state & 1 ? false : true;
+ rfkill_set_sw_state(rfkill, blocked);
+ }
+}
+
+static int cmpc_rfkill_block(void *data, bool blocked)
+{
+ acpi_status status;
+ acpi_handle handle;
+ unsigned long long state;
+
+ handle = data;
+ status = cmpc_get_rfkill_wlan(handle, &state);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+ if (blocked)
+ state &= ~1;
+ else
+ state |= 1;
+ status = cmpc_set_rfkill_wlan(handle, state);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+ return 0;
+}
+
+static const struct rfkill_ops cmpc_rfkill_ops = {
+ .query = cmpc_rfkill_query,
+ .set_block = cmpc_rfkill_block,
+};
+
+/*
+ * Common backlight and rfkill code.
+ */
+
+struct ipml200_dev {
struct backlight_device *bd;
+ struct rfkill *rf;
+};
+
+static int cmpc_ipml_add(struct acpi_device *acpi)
+{
+ int retval;
+ struct ipml200_dev *ipml;
+ struct backlight_properties props;
+
+ ipml = kmalloc(sizeof(*ipml), GFP_KERNEL);
+ if (ipml == NULL)
+ return -ENOMEM;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 7;
- bd = backlight_device_register("cmpc_bl", &acpi->dev, acpi->handle,
- &cmpc_bl_ops, &props);
- if (IS_ERR(bd))
- return PTR_ERR(bd);
- dev_set_drvdata(&acpi->dev, bd);
+ ipml->bd = backlight_device_register("cmpc_bl", &acpi->dev,
+ acpi->handle, &cmpc_bl_ops,
+ &props);
+ if (IS_ERR(ipml->bd)) {
+ retval = PTR_ERR(ipml->bd);
+ goto out_bd;
+ }
+
+ ipml->rf = rfkill_alloc("cmpc_rfkill", &acpi->dev, RFKILL_TYPE_WLAN,
+ &cmpc_rfkill_ops, acpi->handle);
+ /* rfkill_alloc may fail if RFKILL is disabled. We should still work
+ * anyway. */
+ if (!IS_ERR(ipml->rf)) {
+ retval = rfkill_register(ipml->rf);
+ if (retval) {
+ rfkill_destroy(ipml->rf);
+ ipml->rf = NULL;
+ }
+ } else {
+ ipml->rf = NULL;
+ }
+
+ dev_set_drvdata(&acpi->dev, ipml);
return 0;
+
+out_bd:
+ kfree(ipml);
+ return retval;
}
-static int cmpc_bl_remove(struct acpi_device *acpi, int type)
+static int cmpc_ipml_remove(struct acpi_device *acpi, int type)
{
- struct backlight_device *bd;
+ struct ipml200_dev *ipml;
- bd = dev_get_drvdata(&acpi->dev);
- backlight_device_unregister(bd);
+ ipml = dev_get_drvdata(&acpi->dev);
+
+ backlight_device_unregister(ipml->bd);
+
+ if (ipml->rf) {
+ rfkill_unregister(ipml->rf);
+ rfkill_destroy(ipml->rf);
+ }
+
+ kfree(ipml);
+
return 0;
}
-static const struct acpi_device_id cmpc_bl_device_ids[] = {
- {CMPC_BL_HID, 0},
+static const struct acpi_device_id cmpc_ipml_device_ids[] = {
+ {CMPC_IPML_HID, 0},
{"", 0}
};
-static struct acpi_driver cmpc_bl_acpi_driver = {
+static struct acpi_driver cmpc_ipml_acpi_driver = {
.owner = THIS_MODULE,
.name = "cmpc",
.class = "cmpc",
- .ids = cmpc_bl_device_ids,
+ .ids = cmpc_ipml_device_ids,
.ops = {
- .add = cmpc_bl_add,
- .remove = cmpc_bl_remove
+ .add = cmpc_ipml_add,
+ .remove = cmpc_ipml_remove
}
};
@@ -580,7 +706,7 @@
if (r)
goto failed_keys;
- r = acpi_bus_register_driver(&cmpc_bl_acpi_driver);
+ r = acpi_bus_register_driver(&cmpc_ipml_acpi_driver);
if (r)
goto failed_bl;
@@ -598,7 +724,7 @@
acpi_bus_unregister_driver(&cmpc_tablet_acpi_driver);
failed_tablet:
- acpi_bus_unregister_driver(&cmpc_bl_acpi_driver);
+ acpi_bus_unregister_driver(&cmpc_ipml_acpi_driver);
failed_bl:
acpi_bus_unregister_driver(&cmpc_keys_acpi_driver);
@@ -611,7 +737,7 @@
{
acpi_bus_unregister_driver(&cmpc_accel_acpi_driver);
acpi_bus_unregister_driver(&cmpc_tablet_acpi_driver);
- acpi_bus_unregister_driver(&cmpc_bl_acpi_driver);
+ acpi_bus_unregister_driver(&cmpc_ipml_acpi_driver);
acpi_bus_unregister_driver(&cmpc_keys_acpi_driver);
}
@@ -621,7 +747,7 @@
static const struct acpi_device_id cmpc_device_ids[] = {
{CMPC_ACCEL_HID, 0},
{CMPC_TABLET_HID, 0},
- {CMPC_BL_HID, 0},
+ {CMPC_IPML_HID, 0},
{CMPC_KEYS_HID, 0},
{"", 0}
};
diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index b227eb4..9dc50fb 100644
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -206,7 +206,7 @@
{
struct backlight_device *bd = eeepc->backlight_device;
int old = bd->props.brightness;
- int new;
+ int new = old;
if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
new = code - NOTIFY_BRNUP_MIN + 1;
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 47b4fd7..e325aeb 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -1090,10 +1090,9 @@
if (acpi_disabled)
return -ENODEV;
- fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
+ fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
if (!fujitsu)
return -ENOMEM;
- memset(fujitsu, 0, sizeof(struct fujitsu_t));
fujitsu->keycode1 = KEY_PROG1;
fujitsu->keycode2 = KEY_PROG2;
fujitsu->keycode3 = KEY_PROG3;
@@ -1150,12 +1149,11 @@
/* Register hotkey driver */
- fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
+ fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
if (!fujitsu_hotkey) {
ret = -ENOMEM;
goto fail_hotkey;
}
- memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t));
result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
if (result < 0) {
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
new file mode 100644
index 0000000..576c3ed
--- /dev/null
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -0,0 +1,829 @@
+/*
+ * intel_scu_ipc.c: Driver for the Intel SCU IPC mechanism
+ *
+ * (C) Copyright 2008-2010 Intel Corporation
+ * Author: Sreedhara DS (sreedhara.ds@intel.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; version 2
+ * of the License.
+ *
+ * SCU runing in ARC processor communicates with other entity running in IA
+ * core through IPC mechanism which in turn messaging between IA core ad SCU.
+ * SCU has two IPC mechanism IPC-1 and IPC-2. IPC-1 is used between IA32 and
+ * SCU where IPC-2 is used between P-Unit and SCU. This driver delas with
+ * IPC-1 Driver provides an API for power control unit registers (e.g. MSIC)
+ * along with other APIs.
+ */
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/sysdev.h>
+#include <linux/pm.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <asm/setup.h>
+#include <asm/intel_scu_ipc.h>
+
+/* IPC defines the following message types */
+#define IPCMSG_WATCHDOG_TIMER 0xF8 /* Set Kernel Watchdog Threshold */
+#define IPCMSG_BATTERY 0xEF /* Coulomb Counter Accumulator */
+#define IPCMSG_FW_UPDATE 0xFE /* Firmware update */
+#define IPCMSG_PCNTRL 0xFF /* Power controller unit read/write */
+#define IPCMSG_FW_REVISION 0xF4 /* Get firmware revision */
+
+/* Command id associated with message IPCMSG_PCNTRL */
+#define IPC_CMD_PCNTRL_W 0 /* Register write */
+#define IPC_CMD_PCNTRL_R 1 /* Register read */
+#define IPC_CMD_PCNTRL_M 2 /* Register read-modify-write */
+
+/* Miscelaneous Command ids */
+#define IPC_CMD_INDIRECT_RD 2 /* 32bit indirect read */
+#define IPC_CMD_INDIRECT_WR 5 /* 32bit indirect write */
+
+/*
+ * IPC register summary
+ *
+ * IPC register blocks are memory mapped at fixed address of 0xFF11C000
+ * To read or write information to the SCU, driver writes to IPC-1 memory
+ * mapped registers (base address 0xFF11C000). The following is the IPC
+ * mechanism
+ *
+ * 1. IA core cDMI interface claims this transaction and converts it to a
+ * Transaction Layer Packet (TLP) message which is sent across the cDMI.
+ *
+ * 2. South Complex cDMI block receives this message and writes it to
+ * the IPC-1 register block, causing an interrupt to the SCU
+ *
+ * 3. SCU firmware decodes this interrupt and IPC message and the appropriate
+ * message handler is called within firmware.
+ */
+
+#define IPC_BASE_ADDR 0xFF11C000 /* IPC1 base register address */
+#define IPC_MAX_ADDR 0x100 /* Maximum IPC regisers */
+#define IPC_WWBUF_SIZE 16 /* IPC Write buffer Size */
+#define IPC_RWBUF_SIZE 16 /* IPC Read buffer Size */
+#define IPC_I2C_BASE 0xFF12B000 /* I2C control register base address */
+#define IPC_I2C_MAX_ADDR 0x10 /* Maximum I2C regisers */
+
+static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id);
+static void ipc_remove(struct pci_dev *pdev);
+
+struct intel_scu_ipc_dev {
+ struct pci_dev *pdev;
+ void __iomem *ipc_base;
+ void __iomem *i2c_base;
+};
+
+static struct intel_scu_ipc_dev ipcdev; /* Only one for now */
+
+static int platform = 1;
+module_param(platform, int, 0);
+MODULE_PARM_DESC(platform, "1 for moorestown platform");
+
+
+
+
+/*
+ * IPC Read Buffer (Read Only):
+ * 16 byte buffer for receiving data from SCU, if IPC command
+ * processing results in response data
+ */
+#define IPC_READ_BUFFER 0x90
+
+#define IPC_I2C_CNTRL_ADDR 0
+#define I2C_DATA_ADDR 0x04
+
+static DEFINE_MUTEX(ipclock); /* lock used to prevent multiple call to SCU */
+
+/*
+ * Command Register (Write Only):
+ * A write to this register results in an interrupt to the SCU core processor
+ * Format:
+ * |rfu2(8) | size(8) | command id(4) | rfu1(3) | ioc(1) | command(8)|
+ */
+static inline void ipc_command(u32 cmd) /* Send ipc command */
+{
+ writel(cmd, ipcdev.ipc_base);
+}
+
+/*
+ * IPC Write Buffer (Write Only):
+ * 16-byte buffer for sending data associated with IPC command to
+ * SCU. Size of the data is specified in the IPC_COMMAND_REG register
+ */
+static inline void ipc_data_writel(u32 data, u32 offset) /* Write ipc data */
+{
+ writel(data, ipcdev.ipc_base + 0x80 + offset);
+}
+
+/*
+ * IPC destination Pointer (Write Only):
+ * Use content as pointer for destination write
+ */
+static inline void ipc_write_dptr(u32 data) /* Write dptr data */
+{
+ writel(data, ipcdev.ipc_base + 0x0C);
+}
+
+/*
+ * IPC Source Pointer (Write Only):
+ * Use content as pointer for read location
+*/
+static inline void ipc_write_sptr(u32 data) /* Write dptr data */
+{
+ writel(data, ipcdev.ipc_base + 0x08);
+}
+
+/*
+ * Status Register (Read Only):
+ * Driver will read this register to get the ready/busy status of the IPC
+ * block and error status of the IPC command that was just processed by SCU
+ * Format:
+ * |rfu3(8)|error code(8)|initiator id(8)|cmd id(4)|rfu1(2)|error(1)|busy(1)|
+ */
+
+static inline u8 ipc_read_status(void)
+{
+ return __raw_readl(ipcdev.ipc_base + 0x04);
+}
+
+static inline u8 ipc_data_readb(u32 offset) /* Read ipc byte data */
+{
+ return readb(ipcdev.ipc_base + IPC_READ_BUFFER + offset);
+}
+
+static inline u8 ipc_data_readl(u32 offset) /* Read ipc u32 data */
+{
+ return readl(ipcdev.ipc_base + IPC_READ_BUFFER + offset);
+}
+
+static inline int busy_loop(void) /* Wait till scu status is busy */
+{
+ u32 status = 0;
+ u32 loop_count = 0;
+
+ status = ipc_read_status();
+ while (status & 1) {
+ udelay(1); /* scu processing time is in few u secods */
+ status = ipc_read_status();
+ loop_count++;
+ /* break if scu doesn't reset busy bit after huge retry */
+ if (loop_count > 100000) {
+ dev_err(&ipcdev.pdev->dev, "IPC timed out");
+ return -ETIMEDOUT;
+ }
+ }
+ return (status >> 1) & 1;
+}
+
+/* Read/Write power control(PMIC in Langwell, MSIC in PenWell) registers */
+static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
+{
+ int nc;
+ u32 offset = 0;
+ u32 err = 0;
+ u8 cbuf[IPC_WWBUF_SIZE] = { '\0' };
+ u32 *wbuf = (u32 *)&cbuf;
+
+ mutex_lock(&ipclock);
+ if (ipcdev.pdev == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENODEV;
+ }
+
+ if (platform == 1) {
+ /* Entry is 4 bytes for read/write, 5 bytes for read modify */
+ for (nc = 0; nc < count; nc++) {
+ cbuf[offset] = addr[nc];
+ cbuf[offset + 1] = addr[nc] >> 8;
+ if (id != IPC_CMD_PCNTRL_R)
+ cbuf[offset + 2] = data[nc];
+ if (id == IPC_CMD_PCNTRL_M) {
+ cbuf[offset + 3] = data[nc + 1];
+ offset += 1;
+ }
+ offset += 3;
+ }
+ for (nc = 0, offset = 0; nc < count; nc++, offset += 4)
+ ipc_data_writel(wbuf[nc], offset); /* Write wbuff */
+
+ } else {
+ for (nc = 0, offset = 0; nc < count; nc++, offset += 2)
+ ipc_data_writel(addr[nc], offset); /* Write addresses */
+ if (id != IPC_CMD_PCNTRL_R) {
+ for (nc = 0; nc < count; nc++, offset++)
+ ipc_data_writel(data[nc], offset); /* Write data */
+ if (id == IPC_CMD_PCNTRL_M)
+ ipc_data_writel(data[nc + 1], offset); /* Mask value*/
+ }
+ }
+
+ if (id != IPC_CMD_PCNTRL_M)
+ ipc_command((count * 3) << 16 | id << 12 | 0 << 8 | op);
+ else
+ ipc_command((count * 4) << 16 | id << 12 | 0 << 8 | op);
+
+ err = busy_loop();
+
+ if (id == IPC_CMD_PCNTRL_R) { /* Read rbuf */
+ /* Workaround: values are read as 0 without memcpy_fromio */
+ memcpy_fromio(cbuf, ipcdev.ipc_base + IPC_READ_BUFFER, 16);
+ if (platform == 1) {
+ for (nc = 0, offset = 2; nc < count; nc++, offset += 3)
+ data[nc] = ipc_data_readb(offset);
+ } else {
+ for (nc = 0; nc < count; nc++)
+ data[nc] = ipc_data_readb(nc);
+ }
+ }
+ mutex_unlock(&ipclock);
+ return err;
+}
+
+/**
+ * intel_scu_ipc_ioread8 - read a word via the SCU
+ * @addr: register on SCU
+ * @data: return pointer for read byte
+ *
+ * Read a single register. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * This function may sleep.
+ */
+int intel_scu_ipc_ioread8(u16 addr, u8 *data)
+{
+ return pwr_reg_rdwr(&addr, data, 1, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_R);
+}
+EXPORT_SYMBOL(intel_scu_ipc_ioread8);
+
+/**
+ * intel_scu_ipc_ioread16 - read a word via the SCU
+ * @addr: register on SCU
+ * @data: return pointer for read word
+ *
+ * Read a register pair. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * This function may sleep.
+ */
+int intel_scu_ipc_ioread16(u16 addr, u16 *data)
+{
+ u16 x[2] = {addr, addr + 1 };
+ return pwr_reg_rdwr(x, (u8 *)data, 2, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_R);
+}
+EXPORT_SYMBOL(intel_scu_ipc_ioread16);
+
+/**
+ * intel_scu_ipc_ioread32 - read a dword via the SCU
+ * @addr: register on SCU
+ * @data: return pointer for read dword
+ *
+ * Read four registers. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * This function may sleep.
+ */
+int intel_scu_ipc_ioread32(u16 addr, u32 *data)
+{
+ u16 x[4] = {addr, addr + 1, addr + 2, addr + 3};
+ return pwr_reg_rdwr(x, (u8 *)data, 4, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_R);
+}
+EXPORT_SYMBOL(intel_scu_ipc_ioread32);
+
+/**
+ * intel_scu_ipc_iowrite8 - write a byte via the SCU
+ * @addr: register on SCU
+ * @data: byte to write
+ *
+ * Write a single register. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * This function may sleep.
+ */
+int intel_scu_ipc_iowrite8(u16 addr, u8 data)
+{
+ return pwr_reg_rdwr(&addr, &data, 1, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_W);
+}
+EXPORT_SYMBOL(intel_scu_ipc_iowrite8);
+
+/**
+ * intel_scu_ipc_iowrite16 - write a word via the SCU
+ * @addr: register on SCU
+ * @data: word to write
+ *
+ * Write two registers. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * This function may sleep.
+ */
+int intel_scu_ipc_iowrite16(u16 addr, u16 data)
+{
+ u16 x[2] = {addr, addr + 1 };
+ return pwr_reg_rdwr(x, (u8 *)&data, 2, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_W);
+}
+EXPORT_SYMBOL(intel_scu_ipc_iowrite16);
+
+/**
+ * intel_scu_ipc_iowrite32 - write a dword via the SCU
+ * @addr: register on SCU
+ * @data: dword to write
+ *
+ * Write four registers. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * This function may sleep.
+ */
+int intel_scu_ipc_iowrite32(u16 addr, u32 data)
+{
+ u16 x[4] = {addr, addr + 1, addr + 2, addr + 3};
+ return pwr_reg_rdwr(x, (u8 *)&data, 4, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_W);
+}
+EXPORT_SYMBOL(intel_scu_ipc_iowrite32);
+
+/**
+ * intel_scu_ipc_readvv - read a set of registers
+ * @addr: register list
+ * @data: bytes to return
+ * @len: length of array
+ *
+ * Read registers. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * The largest array length permitted by the hardware is 5 items.
+ *
+ * This function may sleep.
+ */
+int intel_scu_ipc_readv(u16 *addr, u8 *data, int len)
+{
+ return pwr_reg_rdwr(addr, data, len, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_R);
+}
+EXPORT_SYMBOL(intel_scu_ipc_readv);
+
+/**
+ * intel_scu_ipc_writev - write a set of registers
+ * @addr: register list
+ * @data: bytes to write
+ * @len: length of array
+ *
+ * Write registers. Returns 0 on success or an error code. All
+ * locking between SCU accesses is handled for the caller.
+ *
+ * The largest array length permitted by the hardware is 5 items.
+ *
+ * This function may sleep.
+ *
+ */
+int intel_scu_ipc_writev(u16 *addr, u8 *data, int len)
+{
+ return pwr_reg_rdwr(addr, data, len, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_W);
+}
+EXPORT_SYMBOL(intel_scu_ipc_writev);
+
+
+/**
+ * intel_scu_ipc_update_register - r/m/w a register
+ * @addr: register address
+ * @bits: bits to update
+ * @mask: mask of bits to update
+ *
+ * Read-modify-write power control unit register. The first data argument
+ * must be register value and second is mask value
+ * mask is a bitmap that indicates which bits to update.
+ * 0 = masked. Don't modify this bit, 1 = modify this bit.
+ * returns 0 on success or an error code.
+ *
+ * This function may sleep. Locking between SCU accesses is handled
+ * for the caller.
+ */
+int intel_scu_ipc_update_register(u16 addr, u8 bits, u8 mask)
+{
+ u8 data[2] = { bits, mask };
+ return pwr_reg_rdwr(&addr, data, 1, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_M);
+}
+EXPORT_SYMBOL(intel_scu_ipc_update_register);
+
+/**
+ * intel_scu_ipc_register_read - 32bit indirect read
+ * @addr: register address
+ * @value: 32bit value return
+ *
+ * Performs IA 32 bit indirect read, returns 0 on success, or an
+ * error code.
+ *
+ * Can be used when SCCB(System Controller Configuration Block) register
+ * HRIM(Honor Restricted IPC Messages) is set (bit 23)
+ *
+ * This function may sleep. Locking for SCU accesses is handled for
+ * the caller.
+ */
+int intel_scu_ipc_register_read(u32 addr, u32 *value)
+{
+ u32 err = 0;
+
+ mutex_lock(&ipclock);
+ if (ipcdev.pdev == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENODEV;
+ }
+ ipc_write_sptr(addr);
+ ipc_command(4 << 16 | IPC_CMD_INDIRECT_RD);
+ err = busy_loop();
+ *value = ipc_data_readl(0);
+ mutex_unlock(&ipclock);
+ return err;
+}
+EXPORT_SYMBOL(intel_scu_ipc_register_read);
+
+/**
+ * intel_scu_ipc_register_write - 32bit indirect write
+ * @addr: register address
+ * @value: 32bit value to write
+ *
+ * Performs IA 32 bit indirect write, returns 0 on success, or an
+ * error code.
+ *
+ * Can be used when SCCB(System Controller Configuration Block) register
+ * HRIM(Honor Restricted IPC Messages) is set (bit 23)
+ *
+ * This function may sleep. Locking for SCU accesses is handled for
+ * the caller.
+ */
+int intel_scu_ipc_register_write(u32 addr, u32 value)
+{
+ u32 err = 0;
+
+ mutex_lock(&ipclock);
+ if (ipcdev.pdev == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENODEV;
+ }
+ ipc_write_dptr(addr);
+ ipc_data_writel(value, 0);
+ ipc_command(4 << 16 | IPC_CMD_INDIRECT_WR);
+ err = busy_loop();
+ mutex_unlock(&ipclock);
+ return err;
+}
+EXPORT_SYMBOL(intel_scu_ipc_register_write);
+
+/**
+ * intel_scu_ipc_simple_command - send a simple command
+ * @cmd: command
+ * @sub: sub type
+ *
+ * Issue a simple command to the SCU. Do not use this interface if
+ * you must then access data as any data values may be overwritten
+ * by another SCU access by the time this function returns.
+ *
+ * This function may sleep. Locking for SCU accesses is handled for
+ * the caller.
+ */
+int intel_scu_ipc_simple_command(int cmd, int sub)
+{
+ u32 err = 0;
+
+ mutex_lock(&ipclock);
+ if (ipcdev.pdev == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENODEV;
+ }
+ ipc_command(cmd << 12 | sub);
+ err = busy_loop();
+ mutex_unlock(&ipclock);
+ return err;
+}
+EXPORT_SYMBOL(intel_scu_ipc_simple_command);
+
+/**
+ * intel_scu_ipc_command - command with data
+ * @cmd: command
+ * @sub: sub type
+ * @in: input data
+ * @inlen: input length
+ * @out: output data
+ * @outlein: output length
+ *
+ * Issue a command to the SCU which involves data transfers. Do the
+ * data copies under the lock but leave it for the caller to interpret
+ */
+
+int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
+ u32 *out, int outlen)
+{
+ u32 err = 0;
+ int i = 0;
+
+ mutex_lock(&ipclock);
+ if (ipcdev.pdev == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENODEV;
+ }
+
+ for (i = 0; i < inlen; i++)
+ ipc_data_writel(*in++, 4 * i);
+
+ ipc_command(cmd << 12 | sub);
+ err = busy_loop();
+
+ for (i = 0; i < outlen; i++)
+ *out++ = ipc_data_readl(4 * i);
+
+ mutex_unlock(&ipclock);
+ return err;
+}
+EXPORT_SYMBOL(intel_scu_ipc_command);
+
+/*I2C commands */
+#define IPC_I2C_WRITE 1 /* I2C Write command */
+#define IPC_I2C_READ 2 /* I2C Read command */
+
+/**
+ * intel_scu_ipc_i2c_cntrl - I2C read/write operations
+ * @addr: I2C address + command bits
+ * @data: data to read/write
+ *
+ * Perform an an I2C read/write operation via the SCU. All locking is
+ * handled for the caller. This function may sleep.
+ *
+ * Returns an error code or 0 on success.
+ *
+ * This has to be in the IPC driver for the locking.
+ */
+int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data)
+{
+ u32 cmd = 0;
+
+ mutex_lock(&ipclock);
+ cmd = (addr >> 24) & 0xFF;
+ if (cmd == IPC_I2C_READ) {
+ writel(addr, ipcdev.i2c_base + IPC_I2C_CNTRL_ADDR);
+ /* Write not getting updated without delay */
+ mdelay(1);
+ *data = readl(ipcdev.i2c_base + I2C_DATA_ADDR);
+ } else if (cmd == IPC_I2C_WRITE) {
+ writel(addr, ipcdev.i2c_base + I2C_DATA_ADDR);
+ mdelay(1);
+ writel(addr, ipcdev.i2c_base + IPC_I2C_CNTRL_ADDR);
+ } else {
+ dev_err(&ipcdev.pdev->dev,
+ "intel_scu_ipc: I2C INVALID_CMD = 0x%x\n", cmd);
+
+ mutex_unlock(&ipclock);
+ return -1;
+ }
+ mutex_unlock(&ipclock);
+ return 0;
+}
+EXPORT_SYMBOL(intel_scu_ipc_i2c_cntrl);
+
+#define IPC_FW_LOAD_ADDR 0xFFFC0000 /* Storage location for FW image */
+#define IPC_FW_UPDATE_MBOX_ADDR 0xFFFFDFF4 /* Mailbox between ipc and scu */
+#define IPC_MAX_FW_SIZE 262144 /* 256K storage size for loading the FW image */
+#define IPC_FW_MIP_HEADER_SIZE 2048 /* Firmware MIP header size */
+/* IPC inform SCU to get ready for update process */
+#define IPC_CMD_FW_UPDATE_READY 0x10FE
+/* IPC inform SCU to go for update process */
+#define IPC_CMD_FW_UPDATE_GO 0x20FE
+/* Status code for fw update */
+#define IPC_FW_UPDATE_SUCCESS 0x444f4e45 /* Status code 'DONE' */
+#define IPC_FW_UPDATE_BADN 0x4241444E /* Status code 'BADN' */
+#define IPC_FW_TXHIGH 0x54784849 /* Status code 'IPC_FW_TXHIGH' */
+#define IPC_FW_TXLOW 0x54784c4f /* Status code 'IPC_FW_TXLOW' */
+
+struct fw_update_mailbox {
+ u32 status;
+ u32 scu_flag;
+ u32 driver_flag;
+};
+
+
+/**
+ * intel_scu_ipc_fw_update - Firmware update utility
+ * @buffer: firmware buffer
+ * @length: size of firmware buffer
+ *
+ * This function provides an interface to load the firmware into
+ * the SCU. Returns 0 on success or -1 on failure
+ */
+int intel_scu_ipc_fw_update(u8 *buffer, u32 length)
+{
+ void __iomem *fw_update_base;
+ struct fw_update_mailbox __iomem *mailbox = NULL;
+ int retry_cnt = 0;
+ u32 status;
+
+ mutex_lock(&ipclock);
+ fw_update_base = ioremap_nocache(IPC_FW_LOAD_ADDR, (128*1024));
+ if (fw_update_base == NULL) {
+ mutex_unlock(&ipclock);
+ return -ENOMEM;
+ }
+ mailbox = ioremap_nocache(IPC_FW_UPDATE_MBOX_ADDR,
+ sizeof(struct fw_update_mailbox));
+ if (mailbox == NULL) {
+ iounmap(fw_update_base);
+ mutex_unlock(&ipclock);
+ return -ENOMEM;
+ }
+
+ ipc_command(IPC_CMD_FW_UPDATE_READY);
+
+ /* Intitialize mailbox */
+ writel(0, &mailbox->status);
+ writel(0, &mailbox->scu_flag);
+ writel(0, &mailbox->driver_flag);
+
+ /* Driver copies the 2KB MIP header to SRAM at 0xFFFC0000*/
+ memcpy_toio(fw_update_base, buffer, 0x800);
+
+ /* Driver sends "FW Update" IPC command (CMD_ID 0xFE; MSG_ID 0x02).
+ * Upon receiving this command, SCU will write the 2K MIP header
+ * from 0xFFFC0000 into NAND.
+ * SCU will write a status code into the Mailbox, and then set scu_flag.
+ */
+
+ ipc_command(IPC_CMD_FW_UPDATE_GO);
+
+ /*Driver stalls until scu_flag is set */
+ while (readl(&mailbox->scu_flag) != 1) {
+ rmb();
+ mdelay(1);
+ }
+
+ /* Driver checks Mailbox status.
+ * If the status is 'BADN', then abort (bad NAND).
+ * If the status is 'IPC_FW_TXLOW', then continue.
+ */
+ while (readl(&mailbox->status) != IPC_FW_TXLOW) {
+ rmb();
+ mdelay(10);
+ }
+ mdelay(10);
+
+update_retry:
+ if (retry_cnt > 5)
+ goto update_end;
+
+ if (readl(&mailbox->status) != IPC_FW_TXLOW)
+ goto update_end;
+ buffer = buffer + 0x800;
+ memcpy_toio(fw_update_base, buffer, 0x20000);
+ writel(1, &mailbox->driver_flag);
+ while (readl(&mailbox->scu_flag) == 1) {
+ rmb();
+ mdelay(1);
+ }
+
+ /* check for 'BADN' */
+ if (readl(&mailbox->status) == IPC_FW_UPDATE_BADN)
+ goto update_end;
+
+ while (readl(&mailbox->status) != IPC_FW_TXHIGH) {
+ rmb();
+ mdelay(10);
+ }
+ mdelay(10);
+
+ if (readl(&mailbox->status) != IPC_FW_TXHIGH)
+ goto update_end;
+
+ buffer = buffer + 0x20000;
+ memcpy_toio(fw_update_base, buffer, 0x20000);
+ writel(0, &mailbox->driver_flag);
+
+ while (mailbox->scu_flag == 0) {
+ rmb();
+ mdelay(1);
+ }
+
+ /* check for 'BADN' */
+ if (readl(&mailbox->status) == IPC_FW_UPDATE_BADN)
+ goto update_end;
+
+ if (readl(&mailbox->status) == IPC_FW_TXLOW) {
+ ++retry_cnt;
+ goto update_retry;
+ }
+
+update_end:
+ status = readl(&mailbox->status);
+
+ iounmap(fw_update_base);
+ iounmap(mailbox);
+ mutex_unlock(&ipclock);
+
+ if (status == IPC_FW_UPDATE_SUCCESS)
+ return 0;
+ return -1;
+}
+EXPORT_SYMBOL(intel_scu_ipc_fw_update);
+
+/*
+ * Interrupt handler gets called when ioc bit of IPC_COMMAND_REG set to 1
+ * When ioc bit is set to 1, caller api must wait for interrupt handler called
+ * which in turn unlocks the caller api. Currently this is not used
+ *
+ * This is edge triggered so we need take no action to clear anything
+ */
+static irqreturn_t ioc(int irq, void *dev_id)
+{
+ return IRQ_HANDLED;
+}
+
+/**
+ * ipc_probe - probe an Intel SCU IPC
+ * @dev: the PCI device matching
+ * @id: entry in the match table
+ *
+ * Enable and install an intel SCU IPC. This appears in the PCI space
+ * but uses some hard coded addresses as well.
+ */
+static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ int err;
+ resource_size_t pci_resource;
+
+ if (ipcdev.pdev) /* We support only one SCU */
+ return -EBUSY;
+
+ ipcdev.pdev = pci_dev_get(dev);
+
+ err = pci_enable_device(dev);
+ if (err)
+ return err;
+
+ err = pci_request_regions(dev, "intel_scu_ipc");
+ if (err)
+ return err;
+
+ pci_resource = pci_resource_start(dev, 0);
+ if (!pci_resource)
+ return -ENOMEM;
+
+ if (request_irq(dev->irq, ioc, 0, "intel_scu_ipc", &ipcdev))
+ return -EBUSY;
+
+ ipcdev.ipc_base = ioremap_nocache(IPC_BASE_ADDR, IPC_MAX_ADDR);
+ if (!ipcdev.ipc_base)
+ return -ENOMEM;
+
+ ipcdev.i2c_base = ioremap_nocache(IPC_I2C_BASE, IPC_I2C_MAX_ADDR);
+ if (!ipcdev.i2c_base) {
+ iounmap(ipcdev.ipc_base);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+/**
+ * ipc_remove - remove a bound IPC device
+ * @pdev: PCI device
+ *
+ * In practice the SCU is not removable but this function is also
+ * called for each device on a module unload or cleanup which is the
+ * path that will get used.
+ *
+ * Free up the mappings and release the PCI resources
+ */
+static void ipc_remove(struct pci_dev *pdev)
+{
+ free_irq(pdev->irq, &ipcdev);
+ pci_release_regions(pdev);
+ pci_dev_put(ipcdev.pdev);
+ iounmap(ipcdev.ipc_base);
+ iounmap(ipcdev.i2c_base);
+ ipcdev.pdev = NULL;
+}
+
+static const struct pci_device_id pci_ids[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080e)},
+ { 0,}
+};
+MODULE_DEVICE_TABLE(pci, pci_ids);
+
+static struct pci_driver ipc_driver = {
+ .name = "intel_scu_ipc",
+ .id_table = pci_ids,
+ .probe = ipc_probe,
+ .remove = ipc_remove,
+};
+
+
+static int __init intel_scu_ipc_init(void)
+{
+ return pci_register_driver(&ipc_driver);
+}
+
+static void __exit intel_scu_ipc_exit(void)
+{
+ pci_unregister_driver(&ipc_driver);
+}
+
+MODULE_AUTHOR("Sreedhara DS <sreedhara.ds@intel.com>");
+MODULE_DESCRIPTION("Intel SCU IPC driver");
+MODULE_LICENSE("GPL");
+
+module_init(intel_scu_ipc_init);
+module_exit(intel_scu_ipc_exit);
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 996223a..afd762b 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -59,6 +59,7 @@
#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/rfkill.h>
+#include <linux/i8042.h>
#define MSI_DRIVER_VERSION "0.5"
@@ -118,7 +119,8 @@
buf[0] = 0x80;
buf[1] = (u8) (level*31);
- return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf), NULL, 0, 1);
+ return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
+ NULL, 0, 1);
}
static int get_lcd_level(void)
@@ -126,7 +128,8 @@
u8 wdata = 0, rdata;
int result;
- result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1, 1);
+ result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
+ &rdata, 1, 1);
if (result < 0)
return result;
@@ -138,7 +141,8 @@
u8 wdata = 4, rdata;
int result;
- result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1, 1);
+ result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
+ &rdata, 1, 1);
if (result < 0)
return result;
@@ -152,14 +156,16 @@
wdata[0] = 4;
- result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1, &rdata, 1, 1);
+ result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
+ &rdata, 1, 1);
if (result < 0)
return result;
wdata[0] = 0x84;
wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
- return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2, NULL, 0, 1);
+ return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
+ NULL, 0, 1);
}
static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
@@ -254,7 +260,7 @@
return set_lcd_level(b->props.brightness);
}
-static struct backlight_ops msibl_ops = {
+static const struct backlight_ops msibl_ops = {
.get_brightness = bl_get_brightness,
.update_status = bl_update_status,
};
@@ -353,7 +359,8 @@
int level, ret;
- if (sscanf(buf, "%i", &level) != 1 || (level < 0 || level >= MSI_LCD_LEVEL_MAX))
+ if (sscanf(buf, "%i", &level) != 1 ||
+ (level < 0 || level >= MSI_LCD_LEVEL_MAX))
return -EINVAL;
ret = set_lcd_level(level);
@@ -393,7 +400,8 @@
}
static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
-static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness, store_auto_brightness);
+static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
+ store_auto_brightness);
static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
@@ -424,8 +432,9 @@
static int dmi_check_cb(const struct dmi_system_id *id)
{
- printk("msi-laptop: Identified laptop model '%s'.\n", id->ident);
- return 0;
+ printk(KERN_INFO "msi-laptop: Identified laptop model '%s'.\n",
+ id->ident);
+ return 0;
}
static struct dmi_system_id __initdata msi_dmi_table[] = {
@@ -435,7 +444,8 @@
DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
- DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT'L CO.,LTD")
+ DMI_MATCH(DMI_CHASSIS_VENDOR,
+ "MICRO-STAR INT'L CO.,LTD")
},
.callback = dmi_check_cb
},
@@ -465,7 +475,8 @@
DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
- DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT'L CO.,LTD")
+ DMI_MATCH(DMI_CHASSIS_VENDOR,
+ "MICRO-STAR INT'L CO.,LTD")
},
.callback = dmi_check_cb
},
@@ -484,6 +495,35 @@
},
.callback = dmi_check_cb
},
+ {
+ .ident = "MSI N051",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR,
+ "MICRO-STAR INTERNATIONAL CO., LTD"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
+ DMI_MATCH(DMI_CHASSIS_VENDOR,
+ "MICRO-STAR INTERNATIONAL CO., LTD")
+ },
+ .callback = dmi_check_cb
+ },
+ {
+ .ident = "MSI N014",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR,
+ "MICRO-STAR INTERNATIONAL CO., LTD"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
+ },
+ .callback = dmi_check_cb
+ },
+ {
+ .ident = "MSI CR620",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR,
+ "Micro-Star International"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
+ },
+ .callback = dmi_check_cb
+ },
{ }
};
@@ -552,11 +592,71 @@
}
}
+static void msi_update_rfkill(struct work_struct *ignored)
+{
+ get_wireless_state_ec_standard();
+
+ if (rfk_wlan)
+ rfkill_set_sw_state(rfk_wlan, !wlan_s);
+ if (rfk_bluetooth)
+ rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
+ if (rfk_threeg)
+ rfkill_set_sw_state(rfk_threeg, !threeg_s);
+}
+static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);
+
+static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
+ struct serio *port)
+{
+ static bool extended;
+
+ if (str & 0x20)
+ return false;
+
+ /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan*/
+ if (unlikely(data == 0xe0)) {
+ extended = true;
+ return false;
+ } else if (unlikely(extended)) {
+ switch (data) {
+ case 0x54:
+ case 0x62:
+ case 0x76:
+ schedule_delayed_work(&msi_rfkill_work,
+ round_jiffies_relative(0.5 * HZ));
+ break;
+ }
+ extended = false;
+ }
+
+ return false;
+}
+
+static void msi_init_rfkill(struct work_struct *ignored)
+{
+ if (rfk_wlan) {
+ rfkill_set_sw_state(rfk_wlan, !wlan_s);
+ rfkill_wlan_set(NULL, !wlan_s);
+ }
+ if (rfk_bluetooth) {
+ rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
+ rfkill_bluetooth_set(NULL, !bluetooth_s);
+ }
+ if (rfk_threeg) {
+ rfkill_set_sw_state(rfk_threeg, !threeg_s);
+ rfkill_threeg_set(NULL, !threeg_s);
+ }
+}
+static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
+
static int rfkill_init(struct platform_device *sdev)
{
/* add rfkill */
int retval;
+ /* keep the hardware wireless state */
+ get_wireless_state_ec_standard();
+
rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
RFKILL_TYPE_BLUETOOTH,
&rfkill_bluetooth_ops, NULL);
@@ -590,6 +690,10 @@
goto err_threeg;
}
+ /* schedule to run rfkill state initial */
+ schedule_delayed_work(&msi_rfkill_init,
+ round_jiffies_relative(1 * HZ));
+
return 0;
err_threeg:
@@ -653,9 +757,24 @@
/* initial rfkill */
result = rfkill_init(sdev);
if (result < 0)
- return result;
+ goto fail_rfkill;
+
+ result = i8042_install_filter(msi_laptop_i8042_filter);
+ if (result) {
+ printk(KERN_ERR
+ "msi-laptop: Unable to install key filter\n");
+ goto fail_filter;
+ }
return 0;
+
+fail_filter:
+ rfkill_cleanup();
+
+fail_rfkill:
+
+ return result;
+
}
static int __init msi_init(void)
@@ -714,7 +833,8 @@
goto fail_platform_device1;
}
- ret = sysfs_create_group(&msipf_device->dev.kobj, &msipf_attribute_group);
+ ret = sysfs_create_group(&msipf_device->dev.kobj,
+ &msipf_attribute_group);
if (ret)
goto fail_platform_device2;
@@ -739,6 +859,11 @@
fail_platform_device2:
+ if (load_scm_model) {
+ i8042_remove_filter(msi_laptop_i8042_filter);
+ cancel_delayed_work_sync(&msi_rfkill_work);
+ rfkill_cleanup();
+ }
platform_device_del(msipf_device);
fail_platform_device1:
@@ -758,6 +883,11 @@
static void __exit msi_cleanup(void)
{
+ if (load_scm_model) {
+ i8042_remove_filter(msi_laptop_i8042_filter);
+ cancel_delayed_work_sync(&msi_rfkill_work);
+ rfkill_cleanup();
+ }
sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
if (!old_ec_model && threeg_exists)
@@ -766,8 +896,6 @@
platform_driver_unregister(&msipf_driver);
backlight_device_unregister(msibl_device);
- rfkill_cleanup();
-
/* Enable automatic brightness control again */
if (auto_brightness != 2)
set_auto_brightness(1);
@@ -788,3 +916,6 @@
MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
+MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
+MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
+MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 63290b3..4bdb137 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -122,8 +122,14 @@
TP_NVRAM_POS_LEVEL_VOLUME = 0,
};
+/* Misc NVRAM-related */
+enum {
+ TP_NVRAM_LEVEL_VOLUME_MAX = 14,
+};
+
/* ACPI HIDs */
#define TPACPI_ACPI_HKEY_HID "IBM0068"
+#define TPACPI_ACPI_EC_HID "PNP0C09"
/* Input IDs */
#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
@@ -299,8 +305,8 @@
u32 hotkey_tablet:1;
u32 light:1;
u32 light_status:1;
- u32 bright_16levels:1;
u32 bright_acpimode:1;
+ u32 bright_unkfw:1;
u32 wan:1;
u32 uwb:1;
u32 fan_ctrl_status_undef:1;
@@ -363,6 +369,9 @@
unsigned int led;
};
+/* brightness level capabilities */
+static unsigned int bright_maxlvl; /* 0 = unknown */
+
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
static int dbg_wlswemul;
static int tpacpi_wlsw_emulstate;
@@ -480,6 +489,15 @@
return 0;
}
+static inline bool __pure __init tpacpi_is_lenovo(void)
+{
+ return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO;
+}
+
+static inline bool __pure __init tpacpi_is_ibm(void)
+{
+ return thinkpad_id.vendor == PCI_VENDOR_ID_IBM;
+}
/****************************************************************************
****************************************************************************
@@ -494,21 +512,13 @@
*/
static acpi_handle root_handle;
+static acpi_handle ec_handle;
#define TPACPI_HANDLE(object, parent, paths...) \
static acpi_handle object##_handle; \
- static acpi_handle *object##_parent = &parent##_handle; \
- static char *object##_path; \
- static char *object##_paths[] = { paths }
-
-TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
- "\\_SB.PCI.ISA.EC", /* 570 */
- "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */
- "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */
- "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */
- "\\_SB.PCI0.ICH3.EC0", /* R31 */
- "\\_SB.PCI0.LPC.EC", /* all others */
- );
+ static const acpi_handle *object##_parent __initdata = \
+ &parent##_handle; \
+ static char *object##_paths[] __initdata = { paths }
TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */
TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */
@@ -528,6 +538,7 @@
"\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
"\\_SB.PCI0.VID0", /* 770e */
"\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
+ "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */
"\\_SB.PCI0.AGP.VID", /* all others */
); /* R30, R31 */
@@ -594,9 +605,10 @@
switch (res_type) {
case 'd': /* int */
- if (res)
+ success = (status == AE_OK &&
+ out_obj.type == ACPI_TYPE_INTEGER);
+ if (success && res)
*(int *)res = out_obj.integer.value;
- success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER;
break;
case 'v': /* void */
success = status == AE_OK;
@@ -609,8 +621,8 @@
}
if (!success && !quiet)
- printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n",
- method, fmt0, status);
+ printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %s\n",
+ method, fmt0, acpi_format_exception(status));
return success;
}
@@ -661,11 +673,11 @@
#define TPACPI_ACPIHANDLE_INIT(object) \
drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
- object##_paths, ARRAY_SIZE(object##_paths), &object##_path)
+ object##_paths, ARRAY_SIZE(object##_paths))
-static void drv_acpi_handle_init(char *name,
- acpi_handle *handle, acpi_handle parent,
- char **paths, int num_paths, char **path)
+static void __init drv_acpi_handle_init(const char *name,
+ acpi_handle *handle, const acpi_handle parent,
+ char **paths, const int num_paths)
{
int i;
acpi_status status;
@@ -676,10 +688,9 @@
for (i = 0; i < num_paths; i++) {
status = acpi_get_handle(parent, paths[i], handle);
if (ACPI_SUCCESS(status)) {
- *path = paths[i];
dbg_printk(TPACPI_DBG_INIT,
"Found ACPI handle %s for %s\n",
- *path, name);
+ paths[i], name);
return;
}
}
@@ -689,6 +700,43 @@
*handle = NULL;
}
+static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle,
+ u32 level, void *context, void **return_value)
+{
+ *(acpi_handle *)return_value = handle;
+
+ return AE_CTRL_TERMINATE;
+}
+
+static void __init tpacpi_acpi_handle_locate(const char *name,
+ const char *hid,
+ acpi_handle *handle)
+{
+ acpi_status status;
+ acpi_handle device_found;
+
+ BUG_ON(!name || !hid || !handle);
+ vdbg_printk(TPACPI_DBG_INIT,
+ "trying to locate ACPI handle for %s, using HID %s\n",
+ name, hid);
+
+ memset(&device_found, 0, sizeof(device_found));
+ status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback,
+ (void *)name, &device_found);
+
+ *handle = NULL;
+
+ if (ACPI_SUCCESS(status)) {
+ *handle = device_found;
+ dbg_printk(TPACPI_DBG_INIT,
+ "Found ACPI handle for %s\n", name);
+ } else {
+ vdbg_printk(TPACPI_DBG_INIT,
+ "Could not locate an ACPI handle for %s: %s\n",
+ name, acpi_format_exception(status));
+ }
+}
+
static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
{
struct ibm_struct *ibm = data;
@@ -736,8 +784,8 @@
"handling %s events\n", ibm->name);
} else {
printk(TPACPI_ERR
- "acpi_install_notify_handler(%s) failed: %d\n",
- ibm->name, status);
+ "acpi_install_notify_handler(%s) failed: %s\n",
+ ibm->name, acpi_format_exception(status));
}
return -ENODEV;
}
@@ -1035,80 +1083,6 @@
"ACPI backlight control delay disabled\n");
}
-static int __init tpacpi_query_bcl_levels(acpi_handle handle)
-{
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- int rc;
-
- if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
- obj = (union acpi_object *)buffer.pointer;
- if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
- printk(TPACPI_ERR "Unknown _BCL data, "
- "please report this to %s\n", TPACPI_MAIL);
- rc = 0;
- } else {
- rc = obj->package.count;
- }
- } else {
- return 0;
- }
-
- kfree(buffer.pointer);
- return rc;
-}
-
-static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle,
- u32 lvl, void *context, void **rv)
-{
- char name[ACPI_PATH_SEGMENT_LENGTH];
- struct acpi_buffer buffer = { sizeof(name), &name };
-
- if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
- !strncmp("_BCL", name, sizeof(name) - 1)) {
- BUG_ON(!rv || !*rv);
- **(int **)rv = tpacpi_query_bcl_levels(handle);
- return AE_CTRL_TERMINATE;
- } else {
- return AE_OK;
- }
-}
-
-/*
- * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map
- */
-static int __init tpacpi_check_std_acpi_brightness_support(void)
-{
- int status;
- int bcl_levels = 0;
- void *bcl_ptr = &bcl_levels;
-
- if (!vid_handle) {
- TPACPI_ACPIHANDLE_INIT(vid);
- }
- if (!vid_handle)
- return 0;
-
- /*
- * Search for a _BCL method, and execute it. This is safe on all
- * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista
- * BIOS in ACPI backlight control mode. We do NOT have to care
- * about calling the _BCL method in an enabled video device, any
- * will do for our purposes.
- */
-
- status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
- tpacpi_acpi_walk_find_bcl, NULL, NULL,
- &bcl_ptr);
-
- if (ACPI_SUCCESS(status) && bcl_levels > 2) {
- tp_features.bright_acpimode = 1;
- return (bcl_levels - 2);
- }
-
- return 0;
-}
-
static void printk_deprecated_attribute(const char * const what,
const char * const details)
{
@@ -1872,34 +1846,9 @@
****************************************************************************/
/*************************************************************************
- * thinkpad-acpi init subdriver
+ * thinkpad-acpi metadata subdriver
*/
-static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm)
-{
- printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
- printk(TPACPI_INFO "%s\n", TPACPI_URL);
-
- printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n",
- (thinkpad_id.bios_version_str) ?
- thinkpad_id.bios_version_str : "unknown",
- (thinkpad_id.ec_version_str) ?
- thinkpad_id.ec_version_str : "unknown");
-
- if (thinkpad_id.vendor && thinkpad_id.model_str)
- printk(TPACPI_INFO "%s %s, model %s\n",
- (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
- "IBM" : ((thinkpad_id.vendor ==
- PCI_VENDOR_ID_LENOVO) ?
- "Lenovo" : "Unknown vendor"),
- thinkpad_id.model_str,
- (thinkpad_id.nummodel_str) ?
- thinkpad_id.nummodel_str : "unknown");
-
- tpacpi_check_outdated_fw();
- return 0;
-}
-
static int thinkpad_acpi_driver_read(struct seq_file *m)
{
seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC);
@@ -2405,6 +2354,36 @@
tpacpi_hotkey_send_key(__scancode); \
} while (0)
+ void issue_volchange(const unsigned int oldvol,
+ const unsigned int newvol)
+ {
+ unsigned int i = oldvol;
+
+ while (i > newvol) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
+ i--;
+ }
+ while (i < newvol) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
+ i++;
+ }
+ }
+
+ void issue_brightnesschange(const unsigned int oldbrt,
+ const unsigned int newbrt)
+ {
+ unsigned int i = oldbrt;
+
+ while (i > newbrt) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
+ i--;
+ }
+ while (i < newbrt) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
+ i++;
+ }
+ }
+
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
@@ -2414,41 +2393,61 @@
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle);
- /* handle volume */
- if (oldn->volume_toggle != newn->volume_toggle) {
- if (oldn->mute != newn->mute) {
+ /*
+ * Handle volume
+ *
+ * This code is supposed to duplicate the IBM firmware behaviour:
+ * - Pressing MUTE issues mute hotkey message, even when already mute
+ * - Pressing Volume up/down issues volume up/down hotkey messages,
+ * even when already at maximum or minumum volume
+ * - The act of unmuting issues volume up/down notification,
+ * depending which key was used to unmute
+ *
+ * We are constrained to what the NVRAM can tell us, which is not much
+ * and certainly not enough if more than one volume hotkey was pressed
+ * since the last poll cycle.
+ *
+ * Just to make our life interesting, some newer Lenovo ThinkPads have
+ * bugs in the BIOS and may fail to update volume_toggle properly.
+ */
+ if (newn->mute) {
+ /* muted */
+ if (!oldn->mute ||
+ oldn->volume_toggle != newn->volume_toggle ||
+ oldn->volume_level != newn->volume_level) {
+ /* recently muted, or repeated mute keypress, or
+ * multiple presses ending in mute */
+ issue_volchange(oldn->volume_level, newn->volume_level);
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
}
- if (oldn->volume_level > newn->volume_level) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
- } else if (oldn->volume_level < newn->volume_level) {
+ } else {
+ /* unmute */
+ if (oldn->mute) {
+ /* recently unmuted, issue 'unmute' keypress */
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
- } else if (oldn->mute == newn->mute) {
- /* repeated key presses that didn't change state */
- if (newn->mute) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
- } else if (newn->volume_level != 0) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
- } else {
+ }
+ if (oldn->volume_level != newn->volume_level) {
+ issue_volchange(oldn->volume_level, newn->volume_level);
+ } else if (oldn->volume_toggle != newn->volume_toggle) {
+ /* repeated vol up/down keypress at end of scale ? */
+ if (newn->volume_level == 0)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
- }
+ else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX)
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
}
}
/* handle brightness */
- if (oldn->brightness_toggle != newn->brightness_toggle) {
- if (oldn->brightness_level < newn->brightness_level) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
- } else if (oldn->brightness_level > newn->brightness_level) {
+ if (oldn->brightness_level != newn->brightness_level) {
+ issue_brightnesschange(oldn->brightness_level,
+ newn->brightness_level);
+ } else if (oldn->brightness_toggle != newn->brightness_toggle) {
+ /* repeated key presses that didn't change state */
+ if (newn->brightness_level == 0)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
- } else {
- /* repeated key presses that didn't change state */
- if (newn->brightness_level != 0) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
- } else {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
- }
- }
+ else if (newn->brightness_level >= bright_maxlvl
+ && !tp_features.bright_unkfw)
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
}
#undef TPACPI_COMPARE_KEY
@@ -3353,7 +3352,7 @@
goto err_exit;
}
- if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
+ if (tpacpi_is_lenovo()) {
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"using Lenovo default hot key map\n");
memcpy(hotkey_keycode_map, &lenovo_keycode_map,
@@ -3391,11 +3390,8 @@
}
/* Do not issue duplicate brightness change events to
- * userspace */
- if (!tp_features.bright_acpimode)
- /* update bright_acpimode... */
- tpacpi_check_std_acpi_brightness_support();
-
+ * userspace. tpacpi_detect_brightness_capabilities() must have
+ * been called before this point */
if (tp_features.bright_acpimode && acpi_video_backlight_support()) {
printk(TPACPI_INFO
"This ThinkPad has standard ACPI backlight "
@@ -4422,7 +4418,8 @@
vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n");
TPACPI_ACPIHANDLE_INIT(vid);
- TPACPI_ACPIHANDLE_INIT(vid2);
+ if (tpacpi_is_ibm())
+ TPACPI_ACPIHANDLE_INIT(vid2);
if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga)
/* G41, assume IVGA doesn't change */
@@ -4431,10 +4428,12 @@
if (!vid_handle)
/* video switching not supported on R30, R31 */
video_supported = TPACPI_VIDEO_NONE;
- else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
+ else if (tpacpi_is_ibm() &&
+ acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
/* 570 */
video_supported = TPACPI_VIDEO_570;
- else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
+ else if (tpacpi_is_ibm() &&
+ acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
/* 600e/x, 770e, 770x */
video_supported = TPACPI_VIDEO_770;
else
@@ -4811,8 +4810,10 @@
vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n");
- TPACPI_ACPIHANDLE_INIT(ledb);
- TPACPI_ACPIHANDLE_INIT(lght);
+ if (tpacpi_is_ibm()) {
+ TPACPI_ACPIHANDLE_INIT(ledb);
+ TPACPI_ACPIHANDLE_INIT(lght);
+ }
TPACPI_ACPIHANDLE_INIT(cmos);
INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker);
@@ -5007,11 +5008,7 @@
static enum led_access_mode led_supported;
-TPACPI_HANDLE(led, ec, "SLED", /* 570 */
- "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */
- /* T20-22, X20-21 */
- "LED", /* all others */
- ); /* R30, R31 */
+static acpi_handle led_handle;
#define TPACPI_LED_NUMLEDS 16
static struct tpacpi_led_classdev *tpacpi_leds;
@@ -5271,6 +5268,32 @@
#undef TPACPI_LEDQ_IBM
#undef TPACPI_LEDQ_LNV
+static enum led_access_mode __init led_init_detect_mode(void)
+{
+ acpi_status status;
+
+ if (tpacpi_is_ibm()) {
+ /* 570 */
+ status = acpi_get_handle(ec_handle, "SLED", &led_handle);
+ if (ACPI_SUCCESS(status))
+ return TPACPI_LED_570;
+
+ /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
+ status = acpi_get_handle(ec_handle, "SYSL", &led_handle);
+ if (ACPI_SUCCESS(status))
+ return TPACPI_LED_OLD;
+ }
+
+ /* most others */
+ status = acpi_get_handle(ec_handle, "LED", &led_handle);
+ if (ACPI_SUCCESS(status))
+ return TPACPI_LED_NEW;
+
+ /* R30, R31, and unknown firmwares */
+ led_handle = NULL;
+ return TPACPI_LED_NONE;
+}
+
static int __init led_init(struct ibm_init_struct *iibm)
{
unsigned int i;
@@ -5279,20 +5302,7 @@
vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
- TPACPI_ACPIHANDLE_INIT(led);
-
- if (!led_handle)
- /* led not supported on R30, R31 */
- led_supported = TPACPI_LED_NONE;
- else if (strlencmp(led_path, "SLED") == 0)
- /* 570 */
- led_supported = TPACPI_LED_570;
- else if (strlencmp(led_path, "SYSL") == 0)
- /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
- led_supported = TPACPI_LED_OLD;
- else
- /* all others */
- led_supported = TPACPI_LED_NEW;
+ led_supported = led_init_detect_mode();
vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
str_supported(led_supported), led_supported);
@@ -5741,11 +5751,12 @@
TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8;
}
} else if (acpi_tmp7) {
- if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
+ if (tpacpi_is_ibm() &&
+ acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
/* 600e/x, 770e, 770x */
thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT;
} else {
- /* Standard ACPI TMPx access, max 8 sensors */
+ /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */
thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
}
} else {
@@ -5954,7 +5965,7 @@
lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
& TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
- lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07;
+ lnvram &= bright_maxlvl;
return lnvram;
}
@@ -6063,8 +6074,7 @@
{
int res;
- if (value > ((tp_features.bright_16levels)? 15 : 7) ||
- value < 0)
+ if (value > bright_maxlvl || value < 0)
return -EINVAL;
vdbg_printk(TPACPI_DBG_BRGHT,
@@ -6139,6 +6149,80 @@
/* --------------------------------------------------------------------- */
+static int __init tpacpi_query_bcl_levels(acpi_handle handle)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ int rc;
+
+ if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
+ obj = (union acpi_object *)buffer.pointer;
+ if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
+ printk(TPACPI_ERR "Unknown _BCL data, "
+ "please report this to %s\n", TPACPI_MAIL);
+ rc = 0;
+ } else {
+ rc = obj->package.count;
+ }
+ } else {
+ return 0;
+ }
+
+ kfree(buffer.pointer);
+ return rc;
+}
+
+static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle,
+ u32 lvl, void *context, void **rv)
+{
+ char name[ACPI_PATH_SEGMENT_LENGTH];
+ struct acpi_buffer buffer = { sizeof(name), &name };
+
+ if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
+ !strncmp("_BCL", name, sizeof(name) - 1)) {
+ BUG_ON(!rv || !*rv);
+ **(int **)rv = tpacpi_query_bcl_levels(handle);
+ return AE_CTRL_TERMINATE;
+ } else {
+ return AE_OK;
+ }
+}
+
+/*
+ * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map
+ */
+static unsigned int __init tpacpi_check_std_acpi_brightness_support(void)
+{
+ int status;
+ int bcl_levels = 0;
+ void *bcl_ptr = &bcl_levels;
+
+ if (!vid_handle)
+ TPACPI_ACPIHANDLE_INIT(vid);
+
+ if (!vid_handle)
+ return 0;
+
+ /*
+ * Search for a _BCL method, and execute it. This is safe on all
+ * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista
+ * BIOS in ACPI backlight control mode. We do NOT have to care
+ * about calling the _BCL method in an enabled video device, any
+ * will do for our purposes.
+ */
+
+ status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
+ tpacpi_acpi_walk_find_bcl, NULL, NULL,
+ &bcl_ptr);
+
+ if (ACPI_SUCCESS(status) && bcl_levels > 2) {
+ tp_features.bright_acpimode = 1;
+ return bcl_levels - 2;
+ }
+
+ return 0;
+}
+
/*
* These are only useful for models that have only one possibility
* of GPU. If the BIOS model handles both ATI and Intel, don't use
@@ -6169,6 +6253,47 @@
TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */
};
+/*
+ * Returns < 0 for error, otherwise sets tp_features.bright_*
+ * and bright_maxlvl.
+ */
+static void __init tpacpi_detect_brightness_capabilities(void)
+{
+ unsigned int b;
+
+ vdbg_printk(TPACPI_DBG_INIT,
+ "detecting firmware brightness interface capabilities\n");
+
+ /* we could run a quirks check here (same table used by
+ * brightness_init) if needed */
+
+ /*
+ * We always attempt to detect acpi support, so as to switch
+ * Lenovo Vista BIOS to ACPI brightness mode even if we are not
+ * going to publish a backlight interface
+ */
+ b = tpacpi_check_std_acpi_brightness_support();
+ switch (b) {
+ case 16:
+ bright_maxlvl = 15;
+ printk(TPACPI_INFO
+ "detected a 16-level brightness capable ThinkPad\n");
+ break;
+ case 8:
+ case 0:
+ bright_maxlvl = 7;
+ printk(TPACPI_INFO
+ "detected a 8-level brightness capable ThinkPad\n");
+ break;
+ default:
+ printk(TPACPI_ERR
+ "Unsupported brightness interface, "
+ "please contact %s\n", TPACPI_MAIL);
+ tp_features.bright_unkfw = 1;
+ bright_maxlvl = b - 1;
+ }
+}
+
static int __init brightness_init(struct ibm_init_struct *iibm)
{
struct backlight_properties props;
@@ -6182,14 +6307,13 @@
quirks = tpacpi_check_quirks(brightness_quirk_table,
ARRAY_SIZE(brightness_quirk_table));
- /*
- * We always attempt to detect acpi support, so as to switch
- * Lenovo Vista BIOS to ACPI brightness mode even if we are not
- * going to publish a backlight interface
- */
- b = tpacpi_check_std_acpi_brightness_support();
- if (b > 0) {
+ /* tpacpi_detect_brightness_capabilities() must have run already */
+ /* if it is unknown, we don't handle it: it wouldn't be safe */
+ if (tp_features.bright_unkfw)
+ return 1;
+
+ if (tp_features.bright_acpimode) {
if (acpi_video_backlight_support()) {
if (brightness_enable > 1) {
printk(TPACPI_NOTICE
@@ -6218,15 +6342,6 @@
return 1;
}
- if (b > 16) {
- printk(TPACPI_ERR
- "Unsupported brightness interface, "
- "please contact %s\n", TPACPI_MAIL);
- return 1;
- }
- if (b == 16)
- tp_features.bright_16levels = 1;
-
/*
* Check for module parameter bogosity, note that we
* init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
@@ -6249,7 +6364,7 @@
}
/* Safety */
- if (thinkpad_id.vendor != PCI_VENDOR_ID_IBM &&
+ if (!tpacpi_is_ibm() &&
(brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM ||
brightness_mode == TPACPI_BRGHT_MODE_EC))
return -EINVAL;
@@ -6257,12 +6372,9 @@
if (tpacpi_brightness_get_raw(&b) < 0)
return 1;
- if (tp_features.bright_16levels)
- printk(TPACPI_INFO
- "detected a 16-level brightness capable ThinkPad\n");
-
memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = (tp_features.bright_16levels) ? 15 : 7;
+ props.max_brightness = bright_maxlvl;
+ props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,
NULL, NULL,
&ibm_backlight_data,
@@ -6285,7 +6397,10 @@
"or not on your ThinkPad\n", TPACPI_MAIL);
}
- ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
+ /* Added by mistake in early 2007. Probably useless, but it could
+ * be working around some unknown firmware problem where the value
+ * read at startup doesn't match the real hardware state... so leave
+ * it in place just in case */
backlight_update_status(ibm_backlight_device);
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
@@ -6328,9 +6443,8 @@
} else {
seq_printf(m, "level:\t\t%d\n", level);
seq_printf(m, "commands:\tup, down\n");
- seq_printf(m, "commands:\tlevel <level>"
- " (<level> is 0-%d)\n",
- (tp_features.bright_16levels) ? 15 : 7);
+ seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n",
+ bright_maxlvl);
}
return 0;
@@ -6341,7 +6455,6 @@
int level;
int rc;
char *cmd;
- int max_level = (tp_features.bright_16levels) ? 15 : 7;
level = brightness_get(NULL);
if (level < 0)
@@ -6349,13 +6462,13 @@
while ((cmd = next_cmd(&buf))) {
if (strlencmp(cmd, "up") == 0) {
- if (level < max_level)
+ if (level < bright_maxlvl)
level++;
} else if (strlencmp(cmd, "down") == 0) {
if (level > 0)
level--;
} else if (sscanf(cmd, "level %d", &level) == 1 &&
- level >= 0 && level <= max_level) {
+ level >= 0 && level <= bright_maxlvl) {
/* new level set */
} else
return -EINVAL;
@@ -6669,6 +6782,8 @@
static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ tpacpi_disclose_usertask("ALSA", "set volume to %ld\n",
+ ucontrol->value.integer.value[0]);
return volume_alsa_set_volume(ucontrol->value.integer.value[0]);
}
@@ -6692,6 +6807,9 @@
static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ tpacpi_disclose_usertask("ALSA", "%smute\n",
+ ucontrol->value.integer.value[0] ?
+ "un" : "");
return volume_alsa_set_mute(!ucontrol->value.integer.value[0]);
}
@@ -7968,9 +8086,11 @@
tp_features.second_fan = 0;
fan_control_desired_level = 7;
- TPACPI_ACPIHANDLE_INIT(fans);
- TPACPI_ACPIHANDLE_INIT(gfan);
- TPACPI_ACPIHANDLE_INIT(sfan);
+ if (tpacpi_is_ibm()) {
+ TPACPI_ACPIHANDLE_INIT(fans);
+ TPACPI_ACPIHANDLE_INIT(gfan);
+ TPACPI_ACPIHANDLE_INIT(sfan);
+ }
quirks = tpacpi_check_quirks(fan_quirk_table,
ARRAY_SIZE(fan_quirk_table));
@@ -8662,6 +8782,10 @@
if (acpi_disabled)
return -ENODEV;
+ /* It would be dangerous to run the driver in this case */
+ if (!tpacpi_is_ibm() && !tpacpi_is_lenovo())
+ return -ENODEV;
+
/*
* Non-ancient models have better DMI tagging, but very old models
* don't. tpacpi_is_fw_known() is a cheat to help in that case.
@@ -8670,8 +8794,8 @@
(thinkpad_id.ec_model != 0) ||
tpacpi_is_fw_known();
- /* ec is required because many other handles are relative to it */
- TPACPI_ACPIHANDLE_INIT(ec);
+ /* The EC handler is required */
+ tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle);
if (!ec_handle) {
if (is_thinkpad)
printk(TPACPI_ERR
@@ -8685,12 +8809,34 @@
return 0;
}
+static void __init thinkpad_acpi_init_banner(void)
+{
+ printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
+ printk(TPACPI_INFO "%s\n", TPACPI_URL);
+
+ printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n",
+ (thinkpad_id.bios_version_str) ?
+ thinkpad_id.bios_version_str : "unknown",
+ (thinkpad_id.ec_version_str) ?
+ thinkpad_id.ec_version_str : "unknown");
+
+ BUG_ON(!thinkpad_id.vendor);
+
+ if (thinkpad_id.model_str)
+ printk(TPACPI_INFO "%s %s, model %s\n",
+ (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
+ "IBM" : ((thinkpad_id.vendor ==
+ PCI_VENDOR_ID_LENOVO) ?
+ "Lenovo" : "Unknown vendor"),
+ thinkpad_id.model_str,
+ (thinkpad_id.nummodel_str) ?
+ thinkpad_id.nummodel_str : "unknown");
+}
/* Module init, exit, parameters */
static struct ibm_init_struct ibms_init[] __initdata = {
{
- .init = thinkpad_acpi_driver_init,
.data = &thinkpad_acpi_driver_data,
},
{
@@ -8960,6 +9106,9 @@
/* Driver initialization */
+ thinkpad_acpi_init_banner();
+ tpacpi_check_outdated_fw();
+
TPACPI_ACPIHANDLE_INIT(ecrd);
TPACPI_ACPIHANDLE_INIT(ecwr);
@@ -9059,13 +9208,16 @@
tpacpi_inputdev->name = "ThinkPad Extra Buttons";
tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0";
tpacpi_inputdev->id.bustype = BUS_HOST;
- tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ?
- thinkpad_id.vendor :
- PCI_VENDOR_ID_IBM;
+ tpacpi_inputdev->id.vendor = thinkpad_id.vendor;
tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev;
}
+
+ /* Init subdriver dependencies */
+ tpacpi_detect_brightness_capabilities();
+
+ /* Init subdrivers */
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
ret = ibm_init(&ibms_init[i]);
if (ret >= 0 && *ibms_init[i].param)
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 39ec5b6..e4eaa14 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -81,6 +81,16 @@
#define ACPI_WMI_STRING 0x4 /* GUID takes & returns a string */
#define ACPI_WMI_EVENT 0x8 /* GUID is an event */
+static int debug_event;
+module_param(debug_event, bool, 0444);
+MODULE_PARM_DESC(debug_event,
+ "Log WMI Events [0/1]");
+
+static int debug_dump_wdg;
+module_param(debug_dump_wdg, bool, 0444);
+MODULE_PARM_DESC(debug_dump_wdg,
+ "Dump available WMI interfaces [0/1]");
+
static int acpi_wmi_remove(struct acpi_device *device, int type);
static int acpi_wmi_add(struct acpi_device *device);
static void acpi_wmi_notify(struct acpi_device *device, u32 event);
@@ -477,6 +487,64 @@
}
EXPORT_SYMBOL_GPL(wmi_set_block);
+static void wmi_dump_wdg(struct guid_block *g)
+{
+ char guid_string[37];
+
+ wmi_gtoa(g->guid, guid_string);
+ printk(KERN_INFO PREFIX "%s:\n", guid_string);
+ printk(KERN_INFO PREFIX "\tobject_id: %c%c\n",
+ g->object_id[0], g->object_id[1]);
+ printk(KERN_INFO PREFIX "\tnotify_id: %02X\n", g->notify_id);
+ printk(KERN_INFO PREFIX "\treserved: %02X\n", g->reserved);
+ printk(KERN_INFO PREFIX "\tinstance_count: %d\n", g->instance_count);
+ printk(KERN_INFO PREFIX "\tflags: %#x", g->flags);
+ if (g->flags) {
+ printk(" ");
+ if (g->flags & ACPI_WMI_EXPENSIVE)
+ printk("ACPI_WMI_EXPENSIVE ");
+ if (g->flags & ACPI_WMI_METHOD)
+ printk("ACPI_WMI_METHOD ");
+ if (g->flags & ACPI_WMI_STRING)
+ printk("ACPI_WMI_STRING ");
+ if (g->flags & ACPI_WMI_EVENT)
+ printk("ACPI_WMI_EVENT ");
+ }
+ printk("\n");
+
+}
+
+static void wmi_notify_debug(u32 value, void *context)
+{
+ struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+
+ wmi_get_event_data(value, &response);
+
+ obj = (union acpi_object *)response.pointer;
+
+ if (!obj)
+ return;
+
+ printk(KERN_INFO PREFIX "DEBUG Event ");
+ switch(obj->type) {
+ case ACPI_TYPE_BUFFER:
+ printk("BUFFER_TYPE - length %d\n", obj->buffer.length);
+ break;
+ case ACPI_TYPE_STRING:
+ printk("STRING_TYPE - %s\n", obj->string.pointer);
+ break;
+ case ACPI_TYPE_INTEGER:
+ printk("INTEGER_TYPE - %llu\n", obj->integer.value);
+ break;
+ case ACPI_TYPE_PACKAGE:
+ printk("PACKAGE_TYPE - %d elements\n", obj->package.count);
+ break;
+ default:
+ printk("object type 0x%X\n", obj->type);
+ }
+}
+
/**
* wmi_install_notify_handler - Register handler for WMI events
* @handler: Function to handle notifications
@@ -496,7 +564,7 @@
if (!find_guid(guid, &block))
return AE_NOT_EXIST;
- if (block->handler)
+ if (block->handler && block->handler != wmi_notify_debug)
return AE_ALREADY_ACQUIRED;
block->handler = handler;
@@ -516,7 +584,7 @@
acpi_status wmi_remove_notify_handler(const char *guid)
{
struct wmi_block *block;
- acpi_status status;
+ acpi_status status = AE_OK;
if (!guid)
return AE_BAD_PARAMETER;
@@ -524,14 +592,16 @@
if (!find_guid(guid, &block))
return AE_NOT_EXIST;
- if (!block->handler)
+ if (!block->handler || block->handler == wmi_notify_debug)
return AE_NULL_ENTRY;
- status = wmi_method_enable(block, 0);
-
- block->handler = NULL;
- block->handler_data = NULL;
-
+ if (debug_event) {
+ block->handler = wmi_notify_debug;
+ } else {
+ status = wmi_method_enable(block, 0);
+ block->handler = NULL;
+ block->handler_data = NULL;
+ }
return status;
}
EXPORT_SYMBOL_GPL(wmi_remove_notify_handler);
@@ -756,12 +826,10 @@
total = obj->buffer.length / sizeof(struct guid_block);
- gblock = kzalloc(obj->buffer.length, GFP_KERNEL);
+ gblock = kmemdup(obj->buffer.pointer, obj->buffer.length, GFP_KERNEL);
if (!gblock)
return AE_NO_MEMORY;
- memcpy(gblock, obj->buffer.pointer, obj->buffer.length);
-
for (i = 0; i < total; i++) {
/*
Some WMI devices, like those for nVidia hooks, have a
@@ -776,12 +844,19 @@
guid_string);
continue;
}
+ if (debug_dump_wdg)
+ wmi_dump_wdg(&gblock[i]);
+
wblock = kzalloc(sizeof(struct wmi_block), GFP_KERNEL);
if (!wblock)
return AE_NO_MEMORY;
wblock->gblock = gblock[i];
wblock->handle = handle;
+ if (debug_event) {
+ wblock->handler = wmi_notify_debug;
+ status = wmi_method_enable(wblock, 1);
+ }
list_add_tail(&wblock->list, &wmi_blocks.list);
}
@@ -840,6 +915,7 @@
struct guid_block *block;
struct wmi_block *wblock;
struct list_head *p;
+ char guid_string[37];
list_for_each(p, &wmi_blocks.list) {
wblock = list_entry(p, struct wmi_block, list);
@@ -849,6 +925,11 @@
(block->notify_id == event)) {
if (wblock->handler)
wblock->handler(event, wblock->handler_data);
+ if (debug_event) {
+ wmi_gtoa(wblock->gblock.guid, guid_string);
+ printk(KERN_INFO PREFIX "DEBUG Event GUID:"
+ " %s\n", guid_string);
+ }
acpi_bus_generate_netlink_event(
device->pnp.device_class, dev_name(&device->dev),