| /*-*-linux-c-*-*/ |
| |
| /* |
| Copyright (C) 2008 Cezary Jackiewicz <cezary.jackiewicz (at) gmail.com> |
| |
| based on MSI driver |
| |
| Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) 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., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301, USA. |
| */ |
| |
| /* |
| * compal-laptop.c - Compal laptop support. |
| * |
| * This driver exports a few files in /sys/devices/platform/compal-laptop/: |
| * wake_up_XXX Whether or not we listen to such wake up events (rw) |
| * |
| * In addition to these platform device attributes the driver |
| * registers itself in the Linux backlight control, power_supply, rfkill |
| * and hwmon subsystem and is available to userspace under: |
| * |
| * /sys/class/backlight/compal-laptop/ |
| * /sys/class/power_supply/compal-laptop/ |
| * /sys/class/rfkill/rfkillX/ |
| * /sys/class/hwmon/hwmonX/ |
| * |
| * Notes on the power_supply battery interface: |
| * - the "minimum" design voltage is *the* design voltage |
| * - the ambient temperature is the average battery temperature |
| * and the value is an educated guess (see commented code below) |
| * |
| * |
| * This driver might work on other laptops produced by Compal. If you |
| * want to try it you can pass force=1 as argument to the module which |
| * will force it to load even when the DMI data doesn't identify the |
| * laptop as compatible. |
| * |
| * Lots of data available at: |
| * http://service1.marasst.com/Compal/JHL90_91/Service%20Manual/ |
| * JHL90%20service%20manual-Final-0725.pdf |
| * |
| * |
| * |
| * Support for the Compal JHL90 added by Roald Frederickx |
| * (roald.frederickx@gmail.com): |
| * Driver got large revision. Added functionalities: backlight |
| * power, wake_on_XXX, a hwmon and power_supply interface. |
| * |
| * In case this gets merged into the kernel source: I want to dedicate this |
| * to Kasper Meerts, the awesome guy who showed me Linux and C! |
| */ |
| |
| /* NOTE: currently the wake_on_XXX, hwmon and power_supply interfaces are |
| * only enabled on a JHL90 board until it is verified that they work on the |
| * other boards too. See the extra_features variable. */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/acpi.h> |
| #include <linux/dmi.h> |
| #include <linux/backlight.h> |
| #include <linux/platform_device.h> |
| #include <linux/rfkill.h> |
| #include <linux/hwmon.h> |
| #include <linux/hwmon-sysfs.h> |
| #include <linux/power_supply.h> |
| #include <linux/fb.h> |
| |
| |
| /* ======= */ |
| /* Defines */ |
| /* ======= */ |
| #define DRIVER_NAME "compal-laptop" |
| #define DRIVER_VERSION "0.2.7" |
| |
| #define BACKLIGHT_LEVEL_ADDR 0xB9 |
| #define BACKLIGHT_LEVEL_MAX 7 |
| #define BACKLIGHT_STATE_ADDR 0x59 |
| #define BACKLIGHT_STATE_ON_DATA 0xE1 |
| #define BACKLIGHT_STATE_OFF_DATA 0xE2 |
| |
| #define WAKE_UP_ADDR 0xA4 |
| #define WAKE_UP_PME (1 << 0) |
| #define WAKE_UP_MODEM (1 << 1) |
| #define WAKE_UP_LAN (1 << 2) |
| #define WAKE_UP_WLAN (1 << 4) |
| #define WAKE_UP_KEY (1 << 6) |
| #define WAKE_UP_MOUSE (1 << 7) |
| |
| #define WIRELESS_ADDR 0xBB |
| #define WIRELESS_WLAN (1 << 0) |
| #define WIRELESS_BT (1 << 1) |
| #define WIRELESS_WLAN_EXISTS (1 << 2) |
| #define WIRELESS_BT_EXISTS (1 << 3) |
| #define WIRELESS_KILLSWITCH (1 << 4) |
| |
| #define PWM_ADDRESS 0x46 |
| #define PWM_DISABLE_ADDR 0x59 |
| #define PWM_DISABLE_DATA 0xA5 |
| #define PWM_ENABLE_ADDR 0x59 |
| #define PWM_ENABLE_DATA 0xA8 |
| |
| #define FAN_ADDRESS 0x46 |
| #define FAN_DATA 0x81 |
| #define FAN_FULL_ON_CMD 0x59 /* Doesn't seem to work. Just */ |
| #define FAN_FULL_ON_ENABLE 0x76 /* force the pwm signal to its */ |
| #define FAN_FULL_ON_DISABLE 0x77 /* maximum value instead */ |
| |
| #define TEMP_CPU 0xB0 |
| #define TEMP_CPU_LOCAL 0xB1 |
| #define TEMP_CPU_DTS 0xB5 |
| #define TEMP_NORTHBRIDGE 0xB6 |
| #define TEMP_VGA 0xB4 |
| #define TEMP_SKIN 0xB2 |
| |
| #define BAT_MANUFACTURER_NAME_ADDR 0x10 |
| #define BAT_MANUFACTURER_NAME_LEN 9 |
| #define BAT_MODEL_NAME_ADDR 0x19 |
| #define BAT_MODEL_NAME_LEN 6 |
| #define BAT_SERIAL_NUMBER_ADDR 0xC4 |
| #define BAT_SERIAL_NUMBER_LEN 5 |
| #define BAT_CHARGE_NOW 0xC2 |
| #define BAT_CHARGE_DESIGN 0xCA |
| #define BAT_VOLTAGE_NOW 0xC6 |
| #define BAT_VOLTAGE_DESIGN 0xC8 |
| #define BAT_CURRENT_NOW 0xD0 |
| #define BAT_CURRENT_AVG 0xD2 |
| #define BAT_POWER 0xD4 |
| #define BAT_CAPACITY 0xCE |
| #define BAT_TEMP 0xD6 |
| #define BAT_TEMP_AVG 0xD7 |
| #define BAT_STATUS0 0xC1 |
| #define BAT_STATUS1 0xF0 |
| #define BAT_STATUS2 0xF1 |
| #define BAT_STOP_CHARGE1 0xF2 |
| #define BAT_STOP_CHARGE2 0xF3 |
| |
| #define BAT_S0_DISCHARGE (1 << 0) |
| #define BAT_S0_DISCHRG_CRITICAL (1 << 2) |
| #define BAT_S0_LOW (1 << 3) |
| #define BAT_S0_CHARGING (1 << 1) |
| #define BAT_S0_AC (1 << 7) |
| #define BAT_S1_EXISTS (1 << 0) |
| #define BAT_S1_FULL (1 << 1) |
| #define BAT_S1_EMPTY (1 << 2) |
| #define BAT_S1_LiION_OR_NiMH (1 << 7) |
| #define BAT_S2_LOW_LOW (1 << 0) |
| #define BAT_STOP_CHRG1_BAD_CELL (1 << 1) |
| #define BAT_STOP_CHRG1_COMM_FAIL (1 << 2) |
| #define BAT_STOP_CHRG1_OVERVOLTAGE (1 << 6) |
| #define BAT_STOP_CHRG1_OVERTEMPERATURE (1 << 7) |
| |
| |
| /* ======= */ |
| /* Structs */ |
| /* ======= */ |
| struct compal_data{ |
| /* Fan control */ |
| int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by motherboard */ |
| unsigned char curr_pwm; |
| |
| /* Power supply */ |
| struct power_supply psy; |
| struct power_supply_info psy_info; |
| char bat_model_name[BAT_MODEL_NAME_LEN + 1]; |
| char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1]; |
| char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1]; |
| }; |
| |
| |
| /* =============== */ |
| /* General globals */ |
| /* =============== */ |
| static bool force; |
| module_param(force, bool, 0); |
| MODULE_PARM_DESC(force, "Force driver load, ignore DMI data"); |
| |
| /* Support for the wake_on_XXX, hwmon and power_supply interface. Currently |
| * only gets enabled on a JHL90 board. Might work with the others too */ |
| static bool extra_features; |
| |
| /* Nasty stuff. For some reason the fan control is very un-linear. I've |
| * come up with these values by looping through the possible inputs and |
| * watching the output of address 0x4F (do an ec_transaction writing 0x33 |
| * into 0x4F and read a few bytes from the output, like so: |
| * u8 writeData = 0x33; |
| * ec_transaction(0x4F, &writeData, 1, buffer, 32); |
| * That address is labeled "fan1 table information" in the service manual. |
| * It should be clear which value in 'buffer' changes). This seems to be |
| * related to fan speed. It isn't a proper 'realtime' fan speed value |
| * though, because physically stopping or speeding up the fan doesn't |
| * change it. It might be the average voltage or current of the pwm output. |
| * Nevertheless, it is more fine-grained than the actual RPM reading */ |
| static const unsigned char pwm_lookup_table[256] = { |
| 0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, |
| 7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95, |
| 13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70, |
| 75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94, |
| 94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139, |
| 139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76, |
| 76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22, |
| 22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219, |
| 219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186, |
| 186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33, |
| 33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38, |
| 206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46, |
| 47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48, |
| 48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44, |
| 189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251, |
| 191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187, |
| 187, 187, 193, 50 |
| }; |
| |
| |
| |
| |
| /* ========================= */ |
| /* Hardware access functions */ |
| /* ========================= */ |
| /* General access */ |
| static u8 ec_read_u8(u8 addr) |
| { |
| u8 value; |
| ec_read(addr, &value); |
| return value; |
| } |
| |
| static s8 ec_read_s8(u8 addr) |
| { |
| return (s8)ec_read_u8(addr); |
| } |
| |
| static u16 ec_read_u16(u8 addr) |
| { |
| int hi, lo; |
| lo = ec_read_u8(addr); |
| hi = ec_read_u8(addr + 1); |
| return (hi << 8) + lo; |
| } |
| |
| static s16 ec_read_s16(u8 addr) |
| { |
| return (s16) ec_read_u16(addr); |
| } |
| |
| static void ec_read_sequence(u8 addr, u8 *buf, int len) |
| { |
| int i; |
| for (i = 0; i < len; i++) |
| ec_read(addr + i, buf + i); |
| } |
| |
| |
| /* Backlight access */ |
| static int set_backlight_level(int level) |
| { |
| if (level < 0 || level > BACKLIGHT_LEVEL_MAX) |
| return -EINVAL; |
| |
| ec_write(BACKLIGHT_LEVEL_ADDR, level); |
| |
| return 0; |
| } |
| |
| static int get_backlight_level(void) |
| { |
| return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR); |
| } |
| |
| static void set_backlight_state(bool on) |
| { |
| u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA; |
| ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0); |
| } |
| |
| |
| /* Fan control access */ |
| static void pwm_enable_control(void) |
| { |
| unsigned char writeData = PWM_ENABLE_DATA; |
| ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0); |
| } |
| |
| static void pwm_disable_control(void) |
| { |
| unsigned char writeData = PWM_DISABLE_DATA; |
| ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0); |
| } |
| |
| static void set_pwm(int pwm) |
| { |
| ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0); |
| } |
| |
| static int get_fan_rpm(void) |
| { |
| u8 value, data = FAN_DATA; |
| ec_transaction(FAN_ADDRESS, &data, 1, &value, 1); |
| return 100 * (int)value; |
| } |
| |
| |
| |
| |
| /* =================== */ |
| /* Interface functions */ |
| /* =================== */ |
| |
| /* Backlight interface */ |
| static int bl_get_brightness(struct backlight_device *b) |
| { |
| return get_backlight_level(); |
| } |
| |
| static int bl_update_status(struct backlight_device *b) |
| { |
| int ret = set_backlight_level(b->props.brightness); |
| if (ret) |
| return ret; |
| |
| set_backlight_state((b->props.power == FB_BLANK_UNBLANK) |
| && !(b->props.state & BL_CORE_SUSPENDED) |
| && !(b->props.state & BL_CORE_FBBLANK)); |
| return 0; |
| } |
| |
| static const struct backlight_ops compalbl_ops = { |
| .get_brightness = bl_get_brightness, |
| .update_status = bl_update_status, |
| }; |
| |
| |
| /* Wireless interface */ |
| static int compal_rfkill_set(void *data, bool blocked) |
| { |
| unsigned long radio = (unsigned long) data; |
| u8 result = ec_read_u8(WIRELESS_ADDR); |
| u8 value; |
| |
| if (!blocked) |
| value = (u8) (result | radio); |
| else |
| value = (u8) (result & ~radio); |
| ec_write(WIRELESS_ADDR, value); |
| |
| return 0; |
| } |
| |
| static void compal_rfkill_poll(struct rfkill *rfkill, void *data) |
| { |
| u8 result = ec_read_u8(WIRELESS_ADDR); |
| bool hw_blocked = !(result & WIRELESS_KILLSWITCH); |
| rfkill_set_hw_state(rfkill, hw_blocked); |
| } |
| |
| static const struct rfkill_ops compal_rfkill_ops = { |
| .poll = compal_rfkill_poll, |
| .set_block = compal_rfkill_set, |
| }; |
| |
| |
| /* Wake_up interface */ |
| #define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \ |
| static ssize_t NAME##_show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \ |
| } \ |
| static ssize_t NAME##_store(struct device *dev, \ |
| struct device_attribute *attr, const char *buf, size_t count) \ |
| { \ |
| int state; \ |
| u8 old_val = ec_read_u8(ADDR); \ |
| if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \ |
| return -EINVAL; \ |
| ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \ |
| return count; \ |
| } |
| |
| SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME) |
| SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM) |
| SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN) |
| SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN) |
| SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY) |
| SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE) |
| |
| /* Fan control interface */ |
| static ssize_t pwm_enable_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct compal_data *data = dev_get_drvdata(dev); |
| return sprintf(buf, "%d\n", data->pwm_enable); |
| } |
| |
| static ssize_t pwm_enable_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct compal_data *data = dev_get_drvdata(dev); |
| long val; |
| int err; |
| |
| err = kstrtol(buf, 10, &val); |
| if (err) |
| return err; |
| if (val < 0) |
| return -EINVAL; |
| |
| data->pwm_enable = val; |
| |
| switch (val) { |
| case 0: /* Full speed */ |
| pwm_enable_control(); |
| set_pwm(255); |
| break; |
| case 1: /* As set by pwm1 */ |
| pwm_enable_control(); |
| set_pwm(data->curr_pwm); |
| break; |
| default: /* Control by motherboard */ |
| pwm_disable_control(); |
| break; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct compal_data *data = dev_get_drvdata(dev); |
| return sprintf(buf, "%hhu\n", data->curr_pwm); |
| } |
| |
| static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct compal_data *data = dev_get_drvdata(dev); |
| long val; |
| int err; |
| |
| err = kstrtol(buf, 10, &val); |
| if (err) |
| return err; |
| if (val < 0 || val > 255) |
| return -EINVAL; |
| |
| data->curr_pwm = val; |
| |
| if (data->pwm_enable != 1) |
| return count; |
| set_pwm(val); |
| |
| return count; |
| } |
| |
| static ssize_t fan_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| return sprintf(buf, "%d\n", get_fan_rpm()); |
| } |
| |
| |
| /* Temperature interface */ |
| #define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \ |
| static ssize_t temp_##POSTFIX(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \ |
| } \ |
| static ssize_t label_##POSTFIX(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| return sprintf(buf, "%s\n", LABEL); \ |
| } |
| |
| /* Labels as in service guide */ |
| TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP"); |
| TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL"); |
| TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS"); |
| TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge"); |
| TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP"); |
| TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90"); |
| |
| |
| /* Power supply interface */ |
| static int bat_status(void) |
| { |
| u8 status0 = ec_read_u8(BAT_STATUS0); |
| u8 status1 = ec_read_u8(BAT_STATUS1); |
| |
| if (status0 & BAT_S0_CHARGING) |
| return POWER_SUPPLY_STATUS_CHARGING; |
| if (status0 & BAT_S0_DISCHARGE) |
| return POWER_SUPPLY_STATUS_DISCHARGING; |
| if (status1 & BAT_S1_FULL) |
| return POWER_SUPPLY_STATUS_FULL; |
| return POWER_SUPPLY_STATUS_NOT_CHARGING; |
| } |
| |
| static int bat_health(void) |
| { |
| u8 status = ec_read_u8(BAT_STOP_CHARGE1); |
| |
| if (status & BAT_STOP_CHRG1_OVERTEMPERATURE) |
| return POWER_SUPPLY_HEALTH_OVERHEAT; |
| if (status & BAT_STOP_CHRG1_OVERVOLTAGE) |
| return POWER_SUPPLY_HEALTH_OVERVOLTAGE; |
| if (status & BAT_STOP_CHRG1_BAD_CELL) |
| return POWER_SUPPLY_HEALTH_DEAD; |
| if (status & BAT_STOP_CHRG1_COMM_FAIL) |
| return POWER_SUPPLY_HEALTH_UNKNOWN; |
| return POWER_SUPPLY_HEALTH_GOOD; |
| } |
| |
| static int bat_is_present(void) |
| { |
| u8 status = ec_read_u8(BAT_STATUS2); |
| return ((status & BAT_S1_EXISTS) != 0); |
| } |
| |
| static int bat_technology(void) |
| { |
| u8 status = ec_read_u8(BAT_STATUS1); |
| |
| if (status & BAT_S1_LiION_OR_NiMH) |
| return POWER_SUPPLY_TECHNOLOGY_LION; |
| return POWER_SUPPLY_TECHNOLOGY_NiMH; |
| } |
| |
| static int bat_capacity_level(void) |
| { |
| u8 status0 = ec_read_u8(BAT_STATUS0); |
| u8 status1 = ec_read_u8(BAT_STATUS1); |
| u8 status2 = ec_read_u8(BAT_STATUS2); |
| |
| if (status0 & BAT_S0_DISCHRG_CRITICAL |
| || status1 & BAT_S1_EMPTY |
| || status2 & BAT_S2_LOW_LOW) |
| return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; |
| if (status0 & BAT_S0_LOW) |
| return POWER_SUPPLY_CAPACITY_LEVEL_LOW; |
| if (status1 & BAT_S1_FULL) |
| return POWER_SUPPLY_CAPACITY_LEVEL_FULL; |
| return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; |
| } |
| |
| static int bat_get_property(struct power_supply *psy, |
| enum power_supply_property psp, |
| union power_supply_propval *val) |
| { |
| struct compal_data *data; |
| data = container_of(psy, struct compal_data, psy); |
| |
| switch (psp) { |
| case POWER_SUPPLY_PROP_STATUS: |
| val->intval = bat_status(); |
| break; |
| case POWER_SUPPLY_PROP_HEALTH: |
| val->intval = bat_health(); |
| break; |
| case POWER_SUPPLY_PROP_PRESENT: |
| val->intval = bat_is_present(); |
| break; |
| case POWER_SUPPLY_PROP_TECHNOLOGY: |
| val->intval = bat_technology(); |
| break; |
| case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */ |
| val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000; |
| break; |
| case POWER_SUPPLY_PROP_VOLTAGE_NOW: |
| val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000; |
| break; |
| case POWER_SUPPLY_PROP_CURRENT_NOW: |
| val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000; |
| break; |
| case POWER_SUPPLY_PROP_CURRENT_AVG: |
| val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000; |
| break; |
| case POWER_SUPPLY_PROP_POWER_NOW: |
| val->intval = ec_read_u8(BAT_POWER) * 1000000; |
| break; |
| case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: |
| val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000; |
| break; |
| case POWER_SUPPLY_PROP_CHARGE_NOW: |
| val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000; |
| break; |
| case POWER_SUPPLY_PROP_CAPACITY: |
| val->intval = ec_read_u8(BAT_CAPACITY); |
| break; |
| case POWER_SUPPLY_PROP_CAPACITY_LEVEL: |
| val->intval = bat_capacity_level(); |
| break; |
| /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing |
| * the number of degrees, whereas BAT_TEMP is somewhat more |
| * complicated. It looks like this is a negative nember with a |
| * 100/256 divider and an offset of 222. Both were determined |
| * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */ |
| case POWER_SUPPLY_PROP_TEMP: |
| val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8; |
| break; |
| case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */ |
| val->intval = ec_read_s8(BAT_TEMP_AVG) * 10; |
| break; |
| /* Neither the model name nor manufacturer name work for me. */ |
| case POWER_SUPPLY_PROP_MODEL_NAME: |
| val->strval = data->bat_model_name; |
| break; |
| case POWER_SUPPLY_PROP_MANUFACTURER: |
| val->strval = data->bat_manufacturer_name; |
| break; |
| case POWER_SUPPLY_PROP_SERIAL_NUMBER: |
| val->strval = data->bat_serial_number; |
| break; |
| default: |
| break; |
| } |
| return 0; |
| } |
| |
| |
| |
| |
| |
| /* ============== */ |
| /* Driver Globals */ |
| /* ============== */ |
| static DEVICE_ATTR(wake_up_pme, |
| 0644, wake_up_pme_show, wake_up_pme_store); |
| static DEVICE_ATTR(wake_up_modem, |
| 0644, wake_up_modem_show, wake_up_modem_store); |
| static DEVICE_ATTR(wake_up_lan, |
| 0644, wake_up_lan_show, wake_up_lan_store); |
| static DEVICE_ATTR(wake_up_wlan, |
| 0644, wake_up_wlan_show, wake_up_wlan_store); |
| static DEVICE_ATTR(wake_up_key, |
| 0644, wake_up_key_show, wake_up_key_store); |
| static DEVICE_ATTR(wake_up_mouse, |
| 0644, wake_up_mouse_show, wake_up_mouse_store); |
| |
| static DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL); |
| static DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL); |
| static DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL); |
| static DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL); |
| static DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL); |
| static DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL); |
| static DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL); |
| static DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL); |
| static DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL); |
| static DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL); |
| static DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL); |
| static DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL); |
| static DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL); |
| static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store); |
| static DEVICE_ATTR(pwm1_enable, |
| S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store); |
| |
| static struct attribute *compal_platform_attrs[] = { |
| &dev_attr_wake_up_pme.attr, |
| &dev_attr_wake_up_modem.attr, |
| &dev_attr_wake_up_lan.attr, |
| &dev_attr_wake_up_wlan.attr, |
| &dev_attr_wake_up_key.attr, |
| &dev_attr_wake_up_mouse.attr, |
| NULL |
| }; |
| static struct attribute_group compal_platform_attr_group = { |
| .attrs = compal_platform_attrs |
| }; |
| |
| static struct attribute *compal_hwmon_attrs[] = { |
| &dev_attr_pwm1_enable.attr, |
| &dev_attr_pwm1.attr, |
| &dev_attr_fan1_input.attr, |
| &dev_attr_temp1_input.attr, |
| &dev_attr_temp2_input.attr, |
| &dev_attr_temp3_input.attr, |
| &dev_attr_temp4_input.attr, |
| &dev_attr_temp5_input.attr, |
| &dev_attr_temp6_input.attr, |
| &dev_attr_temp1_label.attr, |
| &dev_attr_temp2_label.attr, |
| &dev_attr_temp3_label.attr, |
| &dev_attr_temp4_label.attr, |
| &dev_attr_temp5_label.attr, |
| &dev_attr_temp6_label.attr, |
| NULL |
| }; |
| ATTRIBUTE_GROUPS(compal_hwmon); |
| |
| static int compal_probe(struct platform_device *); |
| static int compal_remove(struct platform_device *); |
| static struct platform_driver compal_driver = { |
| .driver = { |
| .name = DRIVER_NAME, |
| }, |
| .probe = compal_probe, |
| .remove = compal_remove, |
| }; |
| |
| static enum power_supply_property compal_bat_properties[] = { |
| POWER_SUPPLY_PROP_STATUS, |
| POWER_SUPPLY_PROP_HEALTH, |
| POWER_SUPPLY_PROP_PRESENT, |
| POWER_SUPPLY_PROP_TECHNOLOGY, |
| POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, |
| POWER_SUPPLY_PROP_VOLTAGE_NOW, |
| POWER_SUPPLY_PROP_CURRENT_NOW, |
| POWER_SUPPLY_PROP_CURRENT_AVG, |
| POWER_SUPPLY_PROP_POWER_NOW, |
| POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, |
| POWER_SUPPLY_PROP_CHARGE_NOW, |
| POWER_SUPPLY_PROP_CAPACITY, |
| POWER_SUPPLY_PROP_CAPACITY_LEVEL, |
| POWER_SUPPLY_PROP_TEMP, |
| POWER_SUPPLY_PROP_TEMP_AMBIENT, |
| POWER_SUPPLY_PROP_MODEL_NAME, |
| POWER_SUPPLY_PROP_MANUFACTURER, |
| POWER_SUPPLY_PROP_SERIAL_NUMBER, |
| }; |
| |
| static struct backlight_device *compalbl_device; |
| |
| static struct platform_device *compal_device; |
| |
| static struct rfkill *wifi_rfkill; |
| static struct rfkill *bt_rfkill; |
| |
| |
| |
| |
| |
| /* =================================== */ |
| /* Initialization & clean-up functions */ |
| /* =================================== */ |
| |
| static int dmi_check_cb(const struct dmi_system_id *id) |
| { |
| pr_info("Identified laptop model '%s'\n", id->ident); |
| extra_features = false; |
| return 1; |
| } |
| |
| static int dmi_check_cb_extra(const struct dmi_system_id *id) |
| { |
| pr_info("Identified laptop model '%s', enabling extra features\n", |
| id->ident); |
| extra_features = true; |
| return 1; |
| } |
| |
| static struct dmi_system_id __initdata compal_dmi_table[] = { |
| { |
| .ident = "FL90/IFL90", |
| .matches = { |
| DMI_MATCH(DMI_BOARD_NAME, "IFL90"), |
| DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "FL90/IFL90", |
| .matches = { |
| DMI_MATCH(DMI_BOARD_NAME, "IFL90"), |
| DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "FL91/IFL91", |
| .matches = { |
| DMI_MATCH(DMI_BOARD_NAME, "IFL91"), |
| DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "FL92/JFL92", |
| .matches = { |
| DMI_MATCH(DMI_BOARD_NAME, "JFL92"), |
| DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "FT00/IFT00", |
| .matches = { |
| DMI_MATCH(DMI_BOARD_NAME, "IFT00"), |
| DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "Dell Mini 9", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "Dell Mini 10", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "Dell Mini 10v", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "Dell Mini 1012", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "Dell Inspiron 11z", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "Dell Mini 12", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"), |
| }, |
| .callback = dmi_check_cb |
| }, |
| { |
| .ident = "JHL90", |
| .matches = { |
| DMI_MATCH(DMI_BOARD_NAME, "JHL90"), |
| DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"), |
| }, |
| .callback = dmi_check_cb_extra |
| }, |
| { |
| .ident = "KHLB2", |
| .matches = { |
| DMI_MATCH(DMI_BOARD_NAME, "KHLB2"), |
| DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"), |
| }, |
| .callback = dmi_check_cb_extra |
| }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(dmi, compal_dmi_table); |
| |
| static void initialize_power_supply_data(struct compal_data *data) |
| { |
| data->psy.name = DRIVER_NAME; |
| data->psy.type = POWER_SUPPLY_TYPE_BATTERY; |
| data->psy.properties = compal_bat_properties; |
| data->psy.num_properties = ARRAY_SIZE(compal_bat_properties); |
| data->psy.get_property = bat_get_property; |
| |
| ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR, |
| data->bat_manufacturer_name, |
| BAT_MANUFACTURER_NAME_LEN); |
| data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0; |
| |
| ec_read_sequence(BAT_MODEL_NAME_ADDR, |
| data->bat_model_name, |
| BAT_MODEL_NAME_LEN); |
| data->bat_model_name[BAT_MODEL_NAME_LEN] = 0; |
| |
| scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d", |
| ec_read_u16(BAT_SERIAL_NUMBER_ADDR)); |
| } |
| |
| static void initialize_fan_control_data(struct compal_data *data) |
| { |
| data->pwm_enable = 2; /* Keep motherboard in control for now */ |
| data->curr_pwm = 255; /* Try not to cause a CPU_on_fire exception |
| if we take over... */ |
| } |
| |
| static int setup_rfkill(void) |
| { |
| int ret; |
| |
| wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev, |
| RFKILL_TYPE_WLAN, &compal_rfkill_ops, |
| (void *) WIRELESS_WLAN); |
| if (!wifi_rfkill) |
| return -ENOMEM; |
| |
| ret = rfkill_register(wifi_rfkill); |
| if (ret) |
| goto err_wifi; |
| |
| bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev, |
| RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops, |
| (void *) WIRELESS_BT); |
| if (!bt_rfkill) { |
| ret = -ENOMEM; |
| goto err_allocate_bt; |
| } |
| ret = rfkill_register(bt_rfkill); |
| if (ret) |
| goto err_register_bt; |
| |
| return 0; |
| |
| err_register_bt: |
| rfkill_destroy(bt_rfkill); |
| |
| err_allocate_bt: |
| rfkill_unregister(wifi_rfkill); |
| |
| err_wifi: |
| rfkill_destroy(wifi_rfkill); |
| |
| return ret; |
| } |
| |
| static int __init compal_init(void) |
| { |
| int ret; |
| |
| if (acpi_disabled) { |
| pr_err("ACPI needs to be enabled for this driver to work!\n"); |
| return -ENODEV; |
| } |
| |
| if (!force && !dmi_check_system(compal_dmi_table)) { |
| pr_err("Motherboard not recognized (You could try the module's force-parameter)\n"); |
| return -ENODEV; |
| } |
| |
| if (!acpi_video_backlight_support()) { |
| struct backlight_properties props; |
| memset(&props, 0, sizeof(struct backlight_properties)); |
| props.type = BACKLIGHT_PLATFORM; |
| props.max_brightness = BACKLIGHT_LEVEL_MAX; |
| compalbl_device = backlight_device_register(DRIVER_NAME, |
| NULL, NULL, |
| &compalbl_ops, |
| &props); |
| if (IS_ERR(compalbl_device)) |
| return PTR_ERR(compalbl_device); |
| } |
| |
| ret = platform_driver_register(&compal_driver); |
| if (ret) |
| goto err_backlight; |
| |
| compal_device = platform_device_alloc(DRIVER_NAME, -1); |
| if (!compal_device) { |
| ret = -ENOMEM; |
| goto err_platform_driver; |
| } |
| |
| ret = platform_device_add(compal_device); /* This calls compal_probe */ |
| if (ret) |
| goto err_platform_device; |
| |
| ret = setup_rfkill(); |
| if (ret) |
| goto err_rfkill; |
| |
| pr_info("Driver " DRIVER_VERSION " successfully loaded\n"); |
| return 0; |
| |
| err_rfkill: |
| platform_device_del(compal_device); |
| |
| err_platform_device: |
| platform_device_put(compal_device); |
| |
| err_platform_driver: |
| platform_driver_unregister(&compal_driver); |
| |
| err_backlight: |
| backlight_device_unregister(compalbl_device); |
| |
| return ret; |
| } |
| |
| static int compal_probe(struct platform_device *pdev) |
| { |
| int err; |
| struct compal_data *data; |
| struct device *hwmon_dev; |
| |
| if (!extra_features) |
| return 0; |
| |
| /* Fan control */ |
| data = devm_kzalloc(&pdev->dev, sizeof(struct compal_data), GFP_KERNEL); |
| if (!data) |
| return -ENOMEM; |
| |
| initialize_fan_control_data(data); |
| |
| err = sysfs_create_group(&pdev->dev.kobj, &compal_platform_attr_group); |
| if (err) |
| return err; |
| |
| hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, |
| "compal", data, |
| compal_hwmon_groups); |
| if (IS_ERR(hwmon_dev)) { |
| err = PTR_ERR(hwmon_dev); |
| goto remove; |
| } |
| |
| /* Power supply */ |
| initialize_power_supply_data(data); |
| err = power_supply_register(&compal_device->dev, &data->psy, NULL); |
| if (err < 0) |
| goto remove; |
| |
| platform_set_drvdata(pdev, data); |
| |
| return 0; |
| |
| remove: |
| sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group); |
| return err; |
| } |
| |
| static void __exit compal_cleanup(void) |
| { |
| platform_device_unregister(compal_device); |
| platform_driver_unregister(&compal_driver); |
| backlight_device_unregister(compalbl_device); |
| rfkill_unregister(wifi_rfkill); |
| rfkill_unregister(bt_rfkill); |
| rfkill_destroy(wifi_rfkill); |
| rfkill_destroy(bt_rfkill); |
| |
| pr_info("Driver unloaded\n"); |
| } |
| |
| static int compal_remove(struct platform_device *pdev) |
| { |
| struct compal_data *data; |
| |
| if (!extra_features) |
| return 0; |
| |
| pr_info("Unloading: resetting fan control to motherboard\n"); |
| pwm_disable_control(); |
| |
| data = platform_get_drvdata(pdev); |
| power_supply_unregister(&data->psy); |
| |
| sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group); |
| |
| return 0; |
| } |
| |
| |
| module_init(compal_init); |
| module_exit(compal_cleanup); |
| |
| MODULE_AUTHOR("Cezary Jackiewicz"); |
| MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)"); |
| MODULE_DESCRIPTION("Compal Laptop Support"); |
| MODULE_VERSION(DRIVER_VERSION); |
| MODULE_LICENSE("GPL"); |