| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Roald Frederickx | 3486 | 77.74% | 3 | 9.68% |
| Cezary Jackiewicz | 483 | 10.77% | 1 | 3.23% |
| Mario Limonciello | 179 | 3.99% | 2 | 6.45% |
| Guenter Roeck | 98 | 2.19% | 3 | 9.68% |
| Krzysztof Kozlowski | 68 | 1.52% | 4 | 12.90% |
| Joe Perches | 41 | 0.91% | 2 | 6.45% |
| Matthew Garrett | 32 | 0.71% | 2 | 6.45% |
| Victor van den Elzen | 31 | 0.69% | 1 | 3.23% |
| Albert Astals Cid | 31 | 0.69% | 1 | 3.23% |
| Dmitry Torokhov | 7 | 0.16% | 1 | 3.23% |
| Thomas Renninger | 6 | 0.13% | 1 | 3.23% |
| Hans de Goede | 6 | 0.13% | 1 | 3.23% |
| Axel Lin | 3 | 0.07% | 1 | 3.23% |
| Thomas Gleixner | 2 | 0.04% | 1 | 3.23% |
| Greg Kroah-Hartman | 2 | 0.04% | 1 | 3.23% |
| Jingoo Han | 2 | 0.04% | 1 | 3.23% |
| yzhai003 at ucr.edu | 2 | 0.04% | 1 | 3.23% |
| Christoph Hellwig | 2 | 0.04% | 1 | 3.23% |
| Rusty Russell | 1 | 0.02% | 1 | 3.23% |
| Arvind Yadav | 1 | 0.02% | 1 | 3.23% |
| Len Brown | 1 | 0.02% | 1 | 3.23% |
| Total | 4484 | 31 |
// SPDX-License-Identifier: GPL-2.0-or-later /*-*-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> */ /* * 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> #include <acpi/video.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_CHARGE_LIMIT 0x03 #define BAT_CHARGE_LIMIT_MAX 100 #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 = 0; 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 = power_supply_get_drvdata(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_CHARGE_CONTROL_LIMIT: val->intval = ec_read_u8(BAT_CHARGE_LIMIT); break; case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX: val->intval = BAT_CHARGE_LIMIT_MAX; 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; } static int bat_set_property(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { int level; switch (psp) { case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT: level = val->intval; if (level < 0 || level > BAT_CHARGE_LIMIT_MAX) return -EINVAL; if (ec_write(BAT_CHARGE_LIMIT, level) < 0) return -EIO; break; default: break; } return 0; } static int bat_writeable_property(struct power_supply *psy, enum power_supply_property psp) { switch (psp) { case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT: return 1; default: return 0; } } /* ============== */ /* Driver Globals */ /* ============== */ static DEVICE_ATTR_RW(wake_up_pme); static DEVICE_ATTR_RW(wake_up_modem); static DEVICE_ATTR_RW(wake_up_lan); static DEVICE_ATTR_RW(wake_up_wlan); static DEVICE_ATTR_RW(wake_up_key); static DEVICE_ATTR_RW(wake_up_mouse); 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 const 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_CHARGE_CONTROL_LIMIT, POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, 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 const struct dmi_system_id compal_dmi_table[] __initconst = { { .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 const struct power_supply_desc psy_bat_desc = { .name = DRIVER_NAME, .type = POWER_SUPPLY_TYPE_BATTERY, .properties = compal_bat_properties, .num_properties = ARRAY_SIZE(compal_bat_properties), .get_property = bat_get_property, .set_property = bat_set_property, .property_is_writeable = bat_writeable_property, }; static void initialize_power_supply_data(struct compal_data *data) { 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_get_backlight_type() == acpi_backlight_vendor) { 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; struct power_supply_config psy_cfg = {}; 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); psy_cfg.drv_data = data; data->psy = power_supply_register(&compal_device->dev, &psy_bat_desc, &psy_cfg); if (IS_ERR(data->psy)) { err = PTR_ERR(data->psy); 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");
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