// SPDX-License-Identifier: GPL-2.0+ /* * System76 ACPI Driver * * Copyright (C) 2023 System76 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/acpi.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/init.h> #include <linux/input.h> #include <linux/kernel.h> #include <linux/leds.h> #include <linux/module.h> #include <linux/pci_ids.h> #include <linux/power_supply.h> #include <linux/sysfs.h> #include <linux/types.h> #include <acpi/battery.h> enum kbled_type { … }; struct system76_data { … }; static const struct acpi_device_id device_ids[] = …; MODULE_DEVICE_TABLE(acpi, device_ids); // Array of keyboard LED brightness levels static const enum led_brightness kb_levels[] = …; // Array of keyboard LED colors in 24-bit RGB format static const int kb_colors[] = …; // Get a System76 ACPI device value by name static int system76_get(struct system76_data *data, char *method) { … } // Get a System76 ACPI device value by name with index static int system76_get_index(struct system76_data *data, char *method, int index) { … } // Get a System76 ACPI device object by name static int system76_get_object(struct system76_data *data, char *method, union acpi_object **obj) { … } // Get a name from a System76 ACPI device object static char *system76_name(union acpi_object *obj, int index) { … } // Set a System76 ACPI device value by name static int system76_set(struct system76_data *data, char *method, int value) { … } #define BATTERY_THRESHOLD_INVALID … enum { … }; static ssize_t battery_get_threshold(int which, char *buf) { … } static ssize_t battery_set_threshold(int which, const char *buf, size_t count) { … } static ssize_t charge_control_start_threshold_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t charge_control_start_threshold_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR_RW(charge_control_start_threshold); static ssize_t charge_control_end_threshold_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t charge_control_end_threshold_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR_RW(charge_control_end_threshold); static struct attribute *system76_battery_attrs[] = …; ATTRIBUTE_GROUPS(…); static int system76_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook) { … } static int system76_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook) { … } static struct acpi_battery_hook system76_battery_hook = …; static void system76_battery_init(void) { … } static void system76_battery_exit(void) { … } // Get the airplane mode LED brightness static enum led_brightness ap_led_get(struct led_classdev *led) { … } // Set the airplane mode LED brightness static int ap_led_set(struct led_classdev *led, enum led_brightness value) { … } // Get the last set keyboard LED brightness static enum led_brightness kb_led_get(struct led_classdev *led) { … } // Set the keyboard LED brightness static int kb_led_set(struct led_classdev *led, enum led_brightness value) { … } // Get the last set keyboard LED color static ssize_t kb_led_color_show( struct device *dev, struct device_attribute *dev_attr, char *buf) { … } // Set the keyboard LED color static ssize_t kb_led_color_store( struct device *dev, struct device_attribute *dev_attr, const char *buf, size_t size) { … } static struct device_attribute dev_attr_kb_led_color = …; static struct attribute *system76_kb_led_color_attrs[] = …; ATTRIBUTE_GROUPS(…); // Notify that the keyboard LED was changed by hardware static void kb_led_notify(struct system76_data *data) { … } // Read keyboard LED brightness as set by hardware static void kb_led_hotkey_hardware(struct system76_data *data) { … } // Toggle the keyboard LED static void kb_led_hotkey_toggle(struct system76_data *data) { … } // Decrease the keyboard LED brightness static void kb_led_hotkey_down(struct system76_data *data) { … } // Increase the keyboard LED brightness static void kb_led_hotkey_up(struct system76_data *data) { … } // Cycle the keyboard LED color static void kb_led_hotkey_color(struct system76_data *data) { … } static umode_t thermal_is_visible(const void *drvdata, enum hwmon_sensor_types type, u32 attr, int channel) { … } static int thermal_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { … } static int thermal_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, const char **str) { … } static const struct hwmon_ops thermal_ops = …; // Allocate up to 8 fans and temperatures static const struct hwmon_channel_info * const thermal_channel_info[] = …; static const struct hwmon_chip_info thermal_chip_info = …; static void input_key(struct system76_data *data, unsigned int code) { … } // Handle ACPI notification static void system76_notify(struct acpi_device *acpi_dev, u32 event) { … } // Add a System76 ACPI device static int system76_add(struct acpi_device *acpi_dev) { … } // Remove a System76 ACPI device static void system76_remove(struct acpi_device *acpi_dev) { … } static struct acpi_driver system76_driver = …; module_acpi_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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