// SPDX-License-Identifier: GPL-2.0-or-later /*-*-linux-c-*-*/ /* Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de> */ /* * msi-laptop.c - MSI S270 laptop support. This laptop is sold under * various brands, including "Cytron/TCM/Medion/Tchibo MD96100". * * Driver also supports S271, S420 models. * * This driver exports a few files in /sys/devices/platform/msi-laptop-pf/: * * lcd_level - Screen brightness: contains a single integer in the * range 0..8. (rw) * * auto_brightness - Enable automatic brightness control: contains * either 0 or 1. If set to 1 the hardware adjusts the screen * brightness automatically when the power cord is * plugged/unplugged. (rw) * * wlan - WLAN subsystem enabled: contains either 0 or 1. (ro) * * bluetooth - Bluetooth subsystem enabled: contains either 0 or 1 * Please note that this file is constantly 0 if no Bluetooth * hardware is available. (ro) * * In addition to these platform device attributes the driver * registers itself in the Linux backlight control subsystem and is * available to userspace under /sys/class/backlight/msi-laptop-bl/. * * This driver might work on other laptops produced by MSI. 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 MSI S270. YMMV. */ #define pr_fmt(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/i8042.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> #include <acpi/video.h> #define MSI_LCD_LEVEL_MAX … #define MSI_EC_COMMAND_WIRELESS … #define MSI_EC_COMMAND_LCD_LEVEL … #define MSI_STANDARD_EC_COMMAND_ADDRESS … #define MSI_STANDARD_EC_BLUETOOTH_MASK … #define MSI_STANDARD_EC_WEBCAM_MASK … #define MSI_STANDARD_EC_WLAN_MASK … #define MSI_STANDARD_EC_3G_MASK … /* For set SCM load flag to disable BIOS fn key */ #define MSI_STANDARD_EC_SCM_LOAD_ADDRESS … #define MSI_STANDARD_EC_SCM_LOAD_MASK … #define MSI_STANDARD_EC_FUNCTIONS_ADDRESS … /* Power LED is orange - Turbo mode */ #define MSI_STANDARD_EC_TURBO_MASK … /* Power LED is green - ECO mode */ #define MSI_STANDARD_EC_ECO_MASK … /* Touchpad is turned on */ #define MSI_STANDARD_EC_TOUCHPAD_MASK … /* If this bit != bit 1, turbo mode can't be toggled */ #define MSI_STANDARD_EC_TURBO_COOLDOWN_MASK … #define MSI_STANDARD_EC_FAN_ADDRESS … /* If zero, fan rotates at maximal speed */ #define MSI_STANDARD_EC_AUTOFAN_MASK … #ifdef CONFIG_PM_SLEEP static int msi_laptop_resume(struct device *device); #endif static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume); #define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS … static bool force; module_param(force, bool, 0); MODULE_PARM_DESC(…) …; static int auto_brightness; module_param(auto_brightness, int, 0); MODULE_PARM_DESC(…) …; static const struct key_entry msi_laptop_keymap[] = …; static struct input_dev *msi_laptop_input_dev; static int wlan_s, bluetooth_s, threeg_s; static int threeg_exists; static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg; /* MSI laptop quirks */ struct quirk_entry { … }; static struct quirk_entry *quirks; /* Hardware access */ static int set_lcd_level(int level) { … } static int get_lcd_level(void) { … } static int get_auto_brightness(void) { … } static int set_auto_brightness(int enable) { … } static ssize_t set_device_state(const char *buf, size_t count, u8 mask) { … } static int get_wireless_state(int *wlan, int *bluetooth) { … } static int get_wireless_state_ec_standard(void) { … } static int get_threeg_exists(void) { … } /* Backlight device stuff */ static int bl_get_brightness(struct backlight_device *b) { … } static int bl_update_status(struct backlight_device *b) { … } static const struct backlight_ops msibl_ops = …; static struct backlight_device *msibl_device; /* Platform device */ static ssize_t show_wlan(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_bluetooth(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_bluetooth(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_threeg(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_threeg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_lcd_level(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_lcd_level(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_auto_brightness(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_auto_brightness(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_touchpad(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_turbo(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_eco(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_turbo_cooldown(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_auto_fan(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t store_auto_fan(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level); static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness, store_auto_brightness); static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL); static DEVICE_ATTR(wlan, 0444, show_wlan, NULL); static DEVICE_ATTR(threeg, 0444, show_threeg, NULL); static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL); static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL); static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL); static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL); static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan); static struct attribute *msipf_attributes[] = …; static struct attribute *msipf_old_attributes[] = …; static const struct attribute_group msipf_attribute_group = …; static const struct attribute_group msipf_old_attribute_group = …; static struct platform_driver msipf_driver = …; static struct platform_device *msipf_device; /* Initialization */ static struct quirk_entry quirk_old_ec_model = …; static struct quirk_entry quirk_load_scm_model = …; static struct quirk_entry quirk_load_scm_ro_model = …; static int dmi_check_cb(const struct dmi_system_id *dmi) { … } static unsigned long msi_work_delay(int msecs) { … } static const struct dmi_system_id msi_dmi_table[] __initconst = …; MODULE_DEVICE_TABLE(dmi, msi_dmi_table); static int rfkill_bluetooth_set(void *data, bool blocked) { … } static int rfkill_wlan_set(void *data, bool blocked) { … } static int rfkill_threeg_set(void *data, bool blocked) { … } static const struct rfkill_ops rfkill_bluetooth_ops = …; static const struct rfkill_ops rfkill_wlan_ops = …; static const struct rfkill_ops rfkill_threeg_ops = …; static void rfkill_cleanup(void) { … } static bool msi_rfkill_set_state(struct rfkill *rfkill, bool blocked) { … } static void msi_update_rfkill(struct work_struct *ignored) { … } static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill); static void msi_send_touchpad_key(struct work_struct *ignored) { … } static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key); static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str, struct serio *port) { … } static void msi_init_rfkill(struct work_struct *ignored) { … } static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill); static int rfkill_init(struct platform_device *sdev) { … } static int msi_scm_disable_hw_fn_handling(void) { … } #ifdef CONFIG_PM_SLEEP static int msi_laptop_resume(struct device *device) { … } #endif static int __init msi_laptop_input_setup(void) { … } static int __init load_scm_model_init(struct platform_device *sdev) { … } static void msi_scm_model_exit(void) { … } static int __init msi_init(void) { … } static void __exit msi_cleanup(void) { … } module_init(…) …; module_exit(msi_cleanup); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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