ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/platform/x86/compal-laptop.c b/marvell/linux/drivers/platform/x86/compal-laptop.c
new file mode 100644
index 0000000..ab61037
--- /dev/null
+++ b/marvell/linux/drivers/platform/x86/compal-laptop.c
@@ -0,0 +1,1120 @@
+// 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");