// SPDX-License-Identifier: GPL-2.0-or-later /*-*-linux-c-*-*/ /* Copyright (C) 2007,2008 Jonathan Woithe <[email protected]> Copyright (C) 2008 Peter Gruber <[email protected]> Copyright (C) 2008 Tony Vroon <[email protected]> Based on earlier work: Copyright (C) 2003 Shane Spencer <[email protected]> Adrian Yee <[email protected]> Templated from msi-laptop.c and thinkpad_acpi.c which is copyright by its respective authors. */ /* * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional * features made available on a range of Fujitsu laptops including the * P2xxx/P5xxx/S6xxx/S7xxx series. * * This driver implements a vendor-specific backlight control interface for * Fujitsu laptops and provides support for hotkeys present on certain Fujitsu * laptops. * * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and * P8010. It should work on most P-series and S-series Lifebooks, but * YMMV. * * The module parameter use_alt_lcd_levels switches between different ACPI * brightness controls which are used by different Fujitsu laptops. In most * cases the correct method is automatically detected. "use_alt_lcd_levels=1" * is applicable for a Fujitsu Lifebook S6410 if autodetection fails. * */ #define pr_fmt(fmt) … #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/acpi.h> #include <linux/bitops.h> #include <linux/dmi.h> #include <linux/backlight.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> #include <linux/kfifo.h> #include <linux/leds.h> #include <linux/platform_device.h> #include <linux/power_supply.h> #include <acpi/battery.h> #include <acpi/video.h> #define FUJITSU_DRIVER_VERSION … #define FUJITSU_LCD_N_LEVELS … #define ACPI_FUJITSU_CLASS … #define ACPI_FUJITSU_BL_HID … #define ACPI_FUJITSU_BL_DRIVER_NAME … #define ACPI_FUJITSU_BL_DEVICE_NAME … #define ACPI_FUJITSU_LAPTOP_HID … #define ACPI_FUJITSU_LAPTOP_DRIVER_NAME … #define ACPI_FUJITSU_LAPTOP_DEVICE_NAME … #define ACPI_FUJITSU_NOTIFY_CODE … /* FUNC interface - command values */ #define FUNC_FLAGS … #define FUNC_LEDS … #define FUNC_BUTTONS … #define FUNC_BACKLIGHT … /* FUNC interface - responses */ #define UNSUPPORTED_CMD … /* FUNC interface - status flags */ #define FLAG_RFKILL … #define FLAG_LID … #define FLAG_DOCK … #define FLAG_TOUCHPAD_TOGGLE … #define FLAG_MICMUTE … #define FLAG_SOFTKEYS … /* FUNC interface - LED control */ #define FUNC_LED_OFF … #define FUNC_LED_ON … #define LOGOLAMP_POWERON … #define LOGOLAMP_ALWAYS … #define KEYBOARD_LAMPS … #define RADIO_LED_ON … #define ECO_LED … #define ECO_LED_ON … /* FUNC interface - backlight power control */ #define BACKLIGHT_PARAM_POWER … #define BACKLIGHT_OFF … #define BACKLIGHT_ON … /* FUNC interface - battery control interface */ #define FUNC_S006_METHOD … #define CHARGE_CONTROL_RW … /* Scancodes read from the GIRB register */ #define KEY1_CODE … #define KEY2_CODE … #define KEY3_CODE … #define KEY4_CODE … #define KEY5_CODE … /* Hotkey ringbuffer limits */ #define MAX_HOTKEY_RINGBUFFER_SIZE … #define RINGBUFFERSIZE … /* Module parameters */ static int use_alt_lcd_levels = …; static bool disable_brightness_adjust; /* Device controlling the backlight and associated keys */ struct fujitsu_bl { … }; static struct fujitsu_bl *fujitsu_bl; /* Device used to access hotkeys and other features on the laptop */ struct fujitsu_laptop { … }; static struct acpi_device *fext; /* Fujitsu ACPI interface function */ static int call_fext_func(struct acpi_device *device, int func, int op, int feature, int state) { … } /* Battery charge control code */ static ssize_t charge_control_end_threshold_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t charge_control_end_threshold_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RW(charge_control_end_threshold); /* ACPI battery hook */ static int fujitsu_battery_add_hook(struct power_supply *battery, struct acpi_battery_hook *hook) { … } static int fujitsu_battery_remove_hook(struct power_supply *battery, struct acpi_battery_hook *hook) { … } static struct acpi_battery_hook battery_hook = …; /* * These functions are intended to be called from acpi_fujitsu_laptop_add and * acpi_fujitsu_laptop_remove. */ static int fujitsu_battery_charge_control_add(struct acpi_device *device) { … } static void fujitsu_battery_charge_control_remove(struct acpi_device *device) { … } /* Hardware access for LCD brightness control */ static int set_lcd_level(struct acpi_device *device, int level) { … } static int get_lcd_level(struct acpi_device *device) { … } static int get_max_brightness(struct acpi_device *device) { … } /* 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 fujitsu_bl_ops = …; static ssize_t lid_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t dock_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t radios_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RO(lid); static DEVICE_ATTR_RO(dock); static DEVICE_ATTR_RO(radios); static struct attribute *fujitsu_pf_attributes[] = …; static const struct attribute_group fujitsu_pf_attribute_group = …; static struct platform_driver fujitsu_pf_driver = …; /* ACPI device for LCD brightness control */ static const struct key_entry keymap_backlight[] = …; static int acpi_fujitsu_bl_input_setup(struct acpi_device *device) { … } static int fujitsu_backlight_register(struct acpi_device *device) { … } static int acpi_fujitsu_bl_add(struct acpi_device *device) { … } /* Brightness notify */ static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event) { … } /* ACPI device for hotkey handling */ static const struct key_entry keymap_default[] = …; static const struct key_entry keymap_s64x0[] = …; static const struct key_entry keymap_p8010[] = …; static const struct key_entry *keymap = …; static int fujitsu_laptop_dmi_keymap_override(const struct dmi_system_id *id) { … } static const struct dmi_system_id fujitsu_laptop_dmi_table[] = …; static int acpi_fujitsu_laptop_input_setup(struct acpi_device *device) { … } static int fujitsu_laptop_platform_add(struct acpi_device *device) { … } static void fujitsu_laptop_platform_remove(struct acpi_device *device) { … } static int logolamp_set(struct led_classdev *cdev, enum led_brightness brightness) { … } static enum led_brightness logolamp_get(struct led_classdev *cdev) { … } static int kblamps_set(struct led_classdev *cdev, enum led_brightness brightness) { … } static enum led_brightness kblamps_get(struct led_classdev *cdev) { … } static int radio_led_set(struct led_classdev *cdev, enum led_brightness brightness) { … } static enum led_brightness radio_led_get(struct led_classdev *cdev) { … } static int eco_led_set(struct led_classdev *cdev, enum led_brightness brightness) { … } static enum led_brightness eco_led_get(struct led_classdev *cdev) { … } static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device) { … } static int acpi_fujitsu_laptop_add(struct acpi_device *device) { … } static void acpi_fujitsu_laptop_remove(struct acpi_device *device) { … } static void acpi_fujitsu_laptop_press(struct acpi_device *device, int scancode) { … } static void acpi_fujitsu_laptop_release(struct acpi_device *device) { … } static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event) { … } /* Initialization */ static const struct acpi_device_id fujitsu_bl_device_ids[] = …; static struct acpi_driver acpi_fujitsu_bl_driver = …; static const struct acpi_device_id fujitsu_laptop_device_ids[] = …; static struct acpi_driver acpi_fujitsu_laptop_driver = …; static const struct acpi_device_id fujitsu_ids[] __used = …; MODULE_DEVICE_TABLE(acpi, fujitsu_ids); static int __init fujitsu_init(void) { … } static void __exit fujitsu_cleanup(void) { … } module_init(…) …; module_exit(fujitsu_cleanup); module_param(use_alt_lcd_levels, int, 0644); MODULE_PARM_DESC(…) …; module_param(disable_brightness_adjust, bool, 0644); MODULE_PARM_DESC(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_VERSION(…); MODULE_LICENSE(…) …;
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