cregit-Linux how code gets into the kernel

Release 4.7 drivers/platform/x86/compal-laptop.c

/*-*-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>
#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; ec_read(addr, &value); return value; }

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static s8 ec_read_s8(u8 addr) { return (s8)ec_read_u8(addr); }

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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; }

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static s16 ec_read_s16(u8 addr) { return (s16) ec_read_u16(addr); }

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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); }

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/* 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; }

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static int get_backlight_level(void) { return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR); }

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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); }

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/* Fan control access */
static void pwm_enable_control(void) { unsigned char writeData = PWM_ENABLE_DATA; ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0); }

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static void pwm_disable_control(void) { unsigned char writeData = PWM_DISABLE_DATA; ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0); }

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static void set_pwm(int pwm) { ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0); }

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static int get_fan_rpm(void) { u8 value, data = FAN_DATA; ec_transaction(FAN_ADDRESS, &data, 1, &value, 1); return 100 * (int)value; }

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/* =================== */ /* Interface functions */ /* =================== */ /* Backlight interface */
static int bl_get_brightness(struct backlight_device *b) { return get_backlight_level(); }

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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; }

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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; }

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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); }

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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); }

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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; }

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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); }

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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; }

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static ssize_t fan_show(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%d\n", get_fan_rpm()); }

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/* 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; }

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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; }

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static int bat_is_present(void) { u8 status = ec_read_u8(BAT_STATUS2); return ((status & BAT_S1_EXISTS) != 0); }

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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; }

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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; }

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roald frederickxroald frederickx70100.00%1100.00%
Total70100.00%1100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx29994.03%250.00%
cezary jackiewiczcezary jackiewicz165.03%125.00%
krzysztof kozlowskikrzysztof kozlowski30.94%125.00%
Total318100.00%4100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx74100.00%1100.00%
Total74100.00%1100.00%


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; } }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx31100.00%1100.00%
Total31100.00%1100.00%

/* ============== */ /* 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_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; }

Contributors

PersonTokensPropCommitsCommitProp
cezary jackiewiczcezary jackiewicz1346.43%125.00%
roald frederickxroald frederickx828.57%125.00%
joe perchesjoe perches621.43%125.00%
axel linaxel lin13.57%125.00%
Total28100.00%4100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx1553.57%125.00%
cezary jackiewiczcezary jackiewicz621.43%125.00%
joe perchesjoe perches621.43%125.00%
axel linaxel lin13.57%125.00%
Total28100.00%4100.00%

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 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)); }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx5985.51%150.00%
krzysztof kozlowskikrzysztof kozlowski1014.49%150.00%
Total69100.00%2100.00%


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... */ }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx2496.00%150.00%
mario limonciellomario limonciello14.00%150.00%
Total25100.00%2100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx13095.59%133.33%
mario limonciellomario limonciello53.68%133.33%
cezary jackiewiczcezary jackiewicz10.74%133.33%
Total136100.00%3100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
cezary jackiewiczcezary jackiewicz15367.40%112.50%
matthew garrettmatthew garrett3214.10%225.00%
roald frederickxroald frederickx219.25%112.50%
joe perchesjoe perches104.41%112.50%
thomas renningerthomas renninger62.64%112.50%
hans de goedehans de goede31.32%112.50%
mario limonciellomario limonciello20.88%112.50%
Total227100.00%8100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx12760.77%225.00%
krzysztof kozlowskikrzysztof kozlowski4421.05%450.00%
guenter roeckguenter roeck3818.18%225.00%
Total209100.00%8100.00%


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"); }

Contributors

PersonTokensPropCommitsCommitProp
cezary jackiewiczcezary jackiewicz2550.00%125.00%
mario limonciellomario limonciello1632.00%125.00%
roald frederickxroald frederickx612.00%125.00%
joe perchesjoe perches36.00%125.00%
Total50100.00%4100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx5588.71%125.00%
cezary jackiewiczcezary jackiewicz34.84%125.00%
joe perchesjoe perches34.84%125.00%
guenter roeckguenter roeck11.61%125.00%
Total62100.00%4100.00%

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");

Overall Contributors

PersonTokensPropCommitsCommitProp
roald frederickxroald frederickx355678.76%311.54%
cezary jackiewiczcezary jackiewicz46710.34%13.85%
mario limonciellomario limonciello1693.74%27.69%
guenter roeckguenter roeck982.17%311.54%
krzysztof kozlowskikrzysztof kozlowski681.51%415.38%
joe perchesjoe perches350.78%13.85%
matthew garrettmatthew garrett320.71%27.69%
victor van den elzenvictor van den elzen310.69%13.85%
albert astals cidalbert astals cid310.69%13.85%
dmitry torokhovdmitry torokhov70.16%13.85%
hans de goedehans de goede60.13%13.85%
thomas renningerthomas renninger60.13%13.85%
axel linaxel lin30.07%13.85%
greg kroah-hartmangreg kroah-hartman20.04%13.85%
jingoo hanjingoo han20.04%13.85%
rusty russellrusty russell10.02%13.85%
len brownlen brown10.02%13.85%
Total4515100.00%26100.00%
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