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1120 lines
29 KiB
1120 lines
29 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/*-*-linux-c-*-*/ |
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/* |
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Copyright (C) 2008 Cezary Jackiewicz <cezary.jackiewicz (at) gmail.com> |
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based on MSI driver |
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Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de> |
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*/ |
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/* |
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* compal-laptop.c - Compal laptop support. |
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* |
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* This driver exports a few files in /sys/devices/platform/compal-laptop/: |
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* wake_up_XXX Whether or not we listen to such wake up events (rw) |
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* |
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* In addition to these platform device attributes the driver |
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* registers itself in the Linux backlight control, power_supply, rfkill |
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* and hwmon subsystem and is available to userspace under: |
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* |
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* /sys/class/backlight/compal-laptop/ |
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* /sys/class/power_supply/compal-laptop/ |
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* /sys/class/rfkill/rfkillX/ |
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* /sys/class/hwmon/hwmonX/ |
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* |
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* Notes on the power_supply battery interface: |
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* - the "minimum" design voltage is *the* design voltage |
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* - the ambient temperature is the average battery temperature |
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* and the value is an educated guess (see commented code below) |
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* |
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* |
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* This driver might work on other laptops produced by Compal. If you |
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* want to try it you can pass force=1 as argument to the module which |
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* will force it to load even when the DMI data doesn't identify the |
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* laptop as compatible. |
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* |
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* Lots of data available at: |
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* http://service1.marasst.com/Compal/JHL90_91/Service%20Manual/ |
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* JHL90%20service%20manual-Final-0725.pdf |
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* |
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* |
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* |
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* Support for the Compal JHL90 added by Roald Frederickx |
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* ([email protected]): |
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* Driver got large revision. Added functionalities: backlight |
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* power, wake_on_XXX, a hwmon and power_supply interface. |
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* |
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* In case this gets merged into the kernel source: I want to dedicate this |
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* to Kasper Meerts, the awesome guy who showed me Linux and C! |
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*/ |
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/* NOTE: currently the wake_on_XXX, hwmon and power_supply interfaces are |
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* only enabled on a JHL90 board until it is verified that they work on the |
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* other boards too. See the extra_features variable. */ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/acpi.h> |
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#include <linux/dmi.h> |
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#include <linux/backlight.h> |
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#include <linux/platform_device.h> |
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#include <linux/rfkill.h> |
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#include <linux/hwmon.h> |
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#include <linux/hwmon-sysfs.h> |
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#include <linux/power_supply.h> |
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#include <linux/fb.h> |
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#include <acpi/video.h> |
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/* ======= */ |
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/* Defines */ |
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/* ======= */ |
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#define DRIVER_NAME "compal-laptop" |
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#define DRIVER_VERSION "0.2.7" |
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#define BACKLIGHT_LEVEL_ADDR 0xB9 |
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#define BACKLIGHT_LEVEL_MAX 7 |
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#define BACKLIGHT_STATE_ADDR 0x59 |
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#define BACKLIGHT_STATE_ON_DATA 0xE1 |
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#define BACKLIGHT_STATE_OFF_DATA 0xE2 |
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#define WAKE_UP_ADDR 0xA4 |
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#define WAKE_UP_PME (1 << 0) |
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#define WAKE_UP_MODEM (1 << 1) |
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#define WAKE_UP_LAN (1 << 2) |
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#define WAKE_UP_WLAN (1 << 4) |
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#define WAKE_UP_KEY (1 << 6) |
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#define WAKE_UP_MOUSE (1 << 7) |
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#define WIRELESS_ADDR 0xBB |
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#define WIRELESS_WLAN (1 << 0) |
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#define WIRELESS_BT (1 << 1) |
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#define WIRELESS_WLAN_EXISTS (1 << 2) |
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#define WIRELESS_BT_EXISTS (1 << 3) |
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#define WIRELESS_KILLSWITCH (1 << 4) |
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#define PWM_ADDRESS 0x46 |
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#define PWM_DISABLE_ADDR 0x59 |
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#define PWM_DISABLE_DATA 0xA5 |
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#define PWM_ENABLE_ADDR 0x59 |
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#define PWM_ENABLE_DATA 0xA8 |
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#define FAN_ADDRESS 0x46 |
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#define FAN_DATA 0x81 |
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#define FAN_FULL_ON_CMD 0x59 /* Doesn't seem to work. Just */ |
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#define FAN_FULL_ON_ENABLE 0x76 /* force the pwm signal to its */ |
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#define FAN_FULL_ON_DISABLE 0x77 /* maximum value instead */ |
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#define TEMP_CPU 0xB0 |
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#define TEMP_CPU_LOCAL 0xB1 |
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#define TEMP_CPU_DTS 0xB5 |
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#define TEMP_NORTHBRIDGE 0xB6 |
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#define TEMP_VGA 0xB4 |
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#define TEMP_SKIN 0xB2 |
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#define BAT_MANUFACTURER_NAME_ADDR 0x10 |
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#define BAT_MANUFACTURER_NAME_LEN 9 |
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#define BAT_MODEL_NAME_ADDR 0x19 |
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#define BAT_MODEL_NAME_LEN 6 |
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#define BAT_SERIAL_NUMBER_ADDR 0xC4 |
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#define BAT_SERIAL_NUMBER_LEN 5 |
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#define BAT_CHARGE_NOW 0xC2 |
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#define BAT_CHARGE_DESIGN 0xCA |
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#define BAT_VOLTAGE_NOW 0xC6 |
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#define BAT_VOLTAGE_DESIGN 0xC8 |
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#define BAT_CURRENT_NOW 0xD0 |
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#define BAT_CURRENT_AVG 0xD2 |
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#define BAT_POWER 0xD4 |
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#define BAT_CAPACITY 0xCE |
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#define BAT_TEMP 0xD6 |
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#define BAT_TEMP_AVG 0xD7 |
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#define BAT_STATUS0 0xC1 |
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#define BAT_STATUS1 0xF0 |
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#define BAT_STATUS2 0xF1 |
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#define BAT_STOP_CHARGE1 0xF2 |
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#define BAT_STOP_CHARGE2 0xF3 |
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#define BAT_CHARGE_LIMIT 0x03 |
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#define BAT_CHARGE_LIMIT_MAX 100 |
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#define BAT_S0_DISCHARGE (1 << 0) |
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#define BAT_S0_DISCHRG_CRITICAL (1 << 2) |
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#define BAT_S0_LOW (1 << 3) |
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#define BAT_S0_CHARGING (1 << 1) |
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#define BAT_S0_AC (1 << 7) |
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#define BAT_S1_EXISTS (1 << 0) |
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#define BAT_S1_FULL (1 << 1) |
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#define BAT_S1_EMPTY (1 << 2) |
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#define BAT_S1_LiION_OR_NiMH (1 << 7) |
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#define BAT_S2_LOW_LOW (1 << 0) |
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#define BAT_STOP_CHRG1_BAD_CELL (1 << 1) |
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#define BAT_STOP_CHRG1_COMM_FAIL (1 << 2) |
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#define BAT_STOP_CHRG1_OVERVOLTAGE (1 << 6) |
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#define BAT_STOP_CHRG1_OVERTEMPERATURE (1 << 7) |
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/* ======= */ |
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/* Structs */ |
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/* ======= */ |
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struct compal_data{ |
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/* Fan control */ |
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int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by motherboard */ |
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unsigned char curr_pwm; |
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/* Power supply */ |
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struct power_supply *psy; |
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struct power_supply_info psy_info; |
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char bat_model_name[BAT_MODEL_NAME_LEN + 1]; |
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char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1]; |
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char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1]; |
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}; |
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/* =============== */ |
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/* General globals */ |
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/* =============== */ |
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static bool force; |
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module_param(force, bool, 0); |
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MODULE_PARM_DESC(force, "Force driver load, ignore DMI data"); |
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/* Support for the wake_on_XXX, hwmon and power_supply interface. Currently |
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* only gets enabled on a JHL90 board. Might work with the others too */ |
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static bool extra_features; |
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/* Nasty stuff. For some reason the fan control is very un-linear. I've |
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* come up with these values by looping through the possible inputs and |
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* watching the output of address 0x4F (do an ec_transaction writing 0x33 |
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* into 0x4F and read a few bytes from the output, like so: |
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* u8 writeData = 0x33; |
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* ec_transaction(0x4F, &writeData, 1, buffer, 32); |
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* That address is labeled "fan1 table information" in the service manual. |
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* It should be clear which value in 'buffer' changes). This seems to be |
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* related to fan speed. It isn't a proper 'realtime' fan speed value |
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* though, because physically stopping or speeding up the fan doesn't |
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* change it. It might be the average voltage or current of the pwm output. |
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* Nevertheless, it is more fine-grained than the actual RPM reading */ |
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static const unsigned char pwm_lookup_table[256] = { |
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0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, |
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7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95, |
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13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70, |
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75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94, |
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94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139, |
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139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76, |
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76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22, |
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22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219, |
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219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186, |
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186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33, |
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33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38, |
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206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46, |
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47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48, |
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48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44, |
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189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251, |
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191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187, |
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187, 187, 193, 50 |
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}; |
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/* ========================= */ |
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/* Hardware access functions */ |
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/* ========================= */ |
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/* General access */ |
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static u8 ec_read_u8(u8 addr) |
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{ |
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u8 value = 0; |
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ec_read(addr, &value); |
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return value; |
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} |
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static s8 ec_read_s8(u8 addr) |
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{ |
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return (s8)ec_read_u8(addr); |
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} |
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static u16 ec_read_u16(u8 addr) |
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{ |
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int hi, lo; |
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lo = ec_read_u8(addr); |
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hi = ec_read_u8(addr + 1); |
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return (hi << 8) + lo; |
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} |
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static s16 ec_read_s16(u8 addr) |
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{ |
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return (s16) ec_read_u16(addr); |
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} |
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static void ec_read_sequence(u8 addr, u8 *buf, int len) |
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{ |
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int i; |
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for (i = 0; i < len; i++) |
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ec_read(addr + i, buf + i); |
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} |
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/* Backlight access */ |
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static int set_backlight_level(int level) |
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{ |
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if (level < 0 || level > BACKLIGHT_LEVEL_MAX) |
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return -EINVAL; |
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ec_write(BACKLIGHT_LEVEL_ADDR, level); |
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return 0; |
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} |
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static int get_backlight_level(void) |
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{ |
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return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR); |
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} |
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static void set_backlight_state(bool on) |
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{ |
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u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA; |
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ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0); |
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} |
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/* Fan control access */ |
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static void pwm_enable_control(void) |
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{ |
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unsigned char writeData = PWM_ENABLE_DATA; |
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ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0); |
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} |
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static void pwm_disable_control(void) |
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{ |
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unsigned char writeData = PWM_DISABLE_DATA; |
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ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0); |
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} |
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static void set_pwm(int pwm) |
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{ |
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ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0); |
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} |
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static int get_fan_rpm(void) |
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{ |
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u8 value, data = FAN_DATA; |
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ec_transaction(FAN_ADDRESS, &data, 1, &value, 1); |
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return 100 * (int)value; |
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} |
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/* =================== */ |
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/* Interface functions */ |
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/* =================== */ |
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/* Backlight interface */ |
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static int bl_get_brightness(struct backlight_device *b) |
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{ |
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return get_backlight_level(); |
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} |
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static int bl_update_status(struct backlight_device *b) |
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{ |
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int ret = set_backlight_level(b->props.brightness); |
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if (ret) |
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return ret; |
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set_backlight_state((b->props.power == FB_BLANK_UNBLANK) |
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&& !(b->props.state & BL_CORE_SUSPENDED) |
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&& !(b->props.state & BL_CORE_FBBLANK)); |
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return 0; |
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} |
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static const struct backlight_ops compalbl_ops = { |
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.get_brightness = bl_get_brightness, |
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.update_status = bl_update_status, |
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}; |
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/* Wireless interface */ |
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static int compal_rfkill_set(void *data, bool blocked) |
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{ |
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unsigned long radio = (unsigned long) data; |
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u8 result = ec_read_u8(WIRELESS_ADDR); |
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u8 value; |
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if (!blocked) |
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value = (u8) (result | radio); |
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else |
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value = (u8) (result & ~radio); |
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ec_write(WIRELESS_ADDR, value); |
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return 0; |
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} |
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static void compal_rfkill_poll(struct rfkill *rfkill, void *data) |
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{ |
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u8 result = ec_read_u8(WIRELESS_ADDR); |
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bool hw_blocked = !(result & WIRELESS_KILLSWITCH); |
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rfkill_set_hw_state(rfkill, hw_blocked); |
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} |
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static const struct rfkill_ops compal_rfkill_ops = { |
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.poll = compal_rfkill_poll, |
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.set_block = compal_rfkill_set, |
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}; |
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/* Wake_up interface */ |
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#define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \ |
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static ssize_t NAME##_show(struct device *dev, \ |
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struct device_attribute *attr, char *buf) \ |
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{ \ |
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return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \ |
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} \ |
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static ssize_t NAME##_store(struct device *dev, \ |
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struct device_attribute *attr, const char *buf, size_t count) \ |
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{ \ |
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int state; \ |
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u8 old_val = ec_read_u8(ADDR); \ |
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if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \ |
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return -EINVAL; \ |
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ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \ |
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return count; \ |
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} |
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SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME) |
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SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM) |
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SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN) |
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SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN) |
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SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY) |
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SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE) |
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/* Fan control interface */ |
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static ssize_t pwm_enable_show(struct device *dev, |
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struct device_attribute *attr, char *buf) |
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{ |
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struct compal_data *data = dev_get_drvdata(dev); |
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return sprintf(buf, "%d\n", data->pwm_enable); |
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} |
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static ssize_t pwm_enable_store(struct device *dev, |
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struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct compal_data *data = dev_get_drvdata(dev); |
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long val; |
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int err; |
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err = kstrtol(buf, 10, &val); |
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if (err) |
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return err; |
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if (val < 0) |
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return -EINVAL; |
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data->pwm_enable = val; |
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switch (val) { |
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case 0: /* Full speed */ |
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pwm_enable_control(); |
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set_pwm(255); |
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break; |
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case 1: /* As set by pwm1 */ |
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pwm_enable_control(); |
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set_pwm(data->curr_pwm); |
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break; |
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default: /* Control by motherboard */ |
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pwm_disable_control(); |
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break; |
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} |
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return count; |
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} |
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static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct compal_data *data = dev_get_drvdata(dev); |
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return sprintf(buf, "%hhu\n", data->curr_pwm); |
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} |
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static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct compal_data *data = dev_get_drvdata(dev); |
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long val; |
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int err; |
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err = kstrtol(buf, 10, &val); |
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if (err) |
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return err; |
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if (val < 0 || val > 255) |
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return -EINVAL; |
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data->curr_pwm = val; |
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if (data->pwm_enable != 1) |
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return count; |
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set_pwm(val); |
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return count; |
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} |
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static ssize_t fan_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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return sprintf(buf, "%d\n", get_fan_rpm()); |
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} |
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/* Temperature interface */ |
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#define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \ |
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static ssize_t temp_##POSTFIX(struct device *dev, \ |
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struct device_attribute *attr, char *buf) \ |
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{ \ |
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return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \ |
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} \ |
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static ssize_t label_##POSTFIX(struct device *dev, \ |
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struct device_attribute *attr, char *buf) \ |
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{ \ |
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return sprintf(buf, "%s\n", LABEL); \ |
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} |
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|
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/* Labels as in service guide */ |
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TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP"); |
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TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL"); |
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TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS"); |
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TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge"); |
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TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP"); |
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TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90"); |
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/* Power supply interface */ |
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static int bat_status(void) |
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{ |
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u8 status0 = ec_read_u8(BAT_STATUS0); |
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u8 status1 = ec_read_u8(BAT_STATUS1); |
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if (status0 & BAT_S0_CHARGING) |
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return POWER_SUPPLY_STATUS_CHARGING; |
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if (status0 & BAT_S0_DISCHARGE) |
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return POWER_SUPPLY_STATUS_DISCHARGING; |
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if (status1 & BAT_S1_FULL) |
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return POWER_SUPPLY_STATUS_FULL; |
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return POWER_SUPPLY_STATUS_NOT_CHARGING; |
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} |
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static int bat_health(void) |
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{ |
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u8 status = ec_read_u8(BAT_STOP_CHARGE1); |
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if (status & BAT_STOP_CHRG1_OVERTEMPERATURE) |
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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 ([email protected])"); |
|
MODULE_DESCRIPTION("Compal Laptop Support"); |
|
MODULE_VERSION(DRIVER_VERSION); |
|
MODULE_LICENSE("GPL");
|
|
|