// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2007-2009 Luca Tettamanti <[email protected]> * * See COPYING in the top level directory of the kernel tree. */ #define pr_fmt(fmt) … #include <linux/debugfs.h> #include <linux/kernel.h> #include <linux/hwmon.h> #include <linux/list.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/dmi.h> #include <linux/jiffies.h> #include <linux/err.h> #include <linux/acpi.h> #define ATK_HID … static bool new_if; module_param(new_if, bool, 0); MODULE_PARM_DESC(…) …; static const struct dmi_system_id __initconst atk_force_new_if[] = …; /* * Minimum time between readings, enforced in order to avoid * hogging the CPU. */ #define CACHE_TIME … #define BOARD_ID … #define METHOD_ENUMERATE … #define METHOD_READ … #define METHOD_WRITE … #define METHOD_OLD_READ_TMP … #define METHOD_OLD_READ_VLT … #define METHOD_OLD_READ_FAN … #define METHOD_OLD_ENUM_TMP … #define METHOD_OLD_ENUM_VLT … #define METHOD_OLD_ENUM_FAN … #define ATK_MUX_HWMON … #define ATK_MUX_MGMT … #define ATK_CLASS_MASK … #define ATK_CLASS_FREQ_CTL … #define ATK_CLASS_FAN_CTL … #define ATK_CLASS_HWMON … #define ATK_CLASS_MGMT … #define ATK_TYPE_MASK … #define HWMON_TYPE_VOLT … #define HWMON_TYPE_TEMP … #define HWMON_TYPE_FAN … #define ATK_ELEMENT_ID_MASK … #define ATK_EC_ID … enum atk_pack_member { … }; /* New package format */ #define _HWMON_NEW_PACK_SIZE … #define _HWMON_NEW_PACK_FLAGS … #define _HWMON_NEW_PACK_NAME … #define _HWMON_NEW_PACK_UNK1 … #define _HWMON_NEW_PACK_UNK2 … #define _HWMON_NEW_PACK_LIMIT1 … #define _HWMON_NEW_PACK_LIMIT2 … #define _HWMON_NEW_PACK_ENABLE … /* Old package format */ #define _HWMON_OLD_PACK_SIZE … #define _HWMON_OLD_PACK_FLAGS … #define _HWMON_OLD_PACK_NAME … #define _HWMON_OLD_PACK_LIMIT1 … #define _HWMON_OLD_PACK_LIMIT2 … #define _HWMON_OLD_PACK_ENABLE … struct atk_data { … }; sysfs_show_func; static const struct acpi_device_id atk_ids[] = …; MODULE_DEVICE_TABLE(acpi, atk_ids); #define ATTR_NAME_SIZE … struct atk_sensor_data { … }; /* * Return buffer format: * [0-3] "value" is valid flag * [4-7] value * [8- ] unknown stuff on newer mobos */ struct atk_acpi_ret_buffer { … }; /* Input buffer used for GITM and SITM methods */ struct atk_acpi_input_buf { … }; static int atk_add(struct acpi_device *device); static void atk_remove(struct acpi_device *device); static void atk_print_sensor(struct atk_data *data, union acpi_object *obj); static int atk_read_value(struct atk_sensor_data *sensor, u64 *value); static struct acpi_driver atk_driver = …; #define input_to_atk_sensor(attr) … #define label_to_atk_sensor(attr) … #define limit1_to_atk_sensor(attr) … #define limit2_to_atk_sensor(attr) … static ssize_t atk_input_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t atk_label_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t atk_limit1_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t atk_limit2_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static void atk_init_attribute(struct device_attribute *attr, char *name, sysfs_show_func show) { … } static union acpi_object *atk_get_pack_member(struct atk_data *data, union acpi_object *pack, enum atk_pack_member m) { … } /* * New package format is: * - flag (int) * class - used for de-muxing the request to the correct GITn * type (volt, temp, fan) * sensor id | * sensor id - used for de-muxing the request _inside_ the GITn * - name (str) * - unknown (int) * - unknown (int) * - limit1 (int) * - limit2 (int) * - enable (int) * * The old package has the same format but it's missing the two unknown fields. */ static int validate_hwmon_pack(struct atk_data *data, union acpi_object *obj) { … } #ifdef DEBUG static char const *atk_sensor_type(union acpi_object *flags) { … } #endif static void atk_print_sensor(struct atk_data *data, union acpi_object *obj) { … } static int atk_read_value_old(struct atk_sensor_data *sensor, u64 *value) { … } static union acpi_object *atk_ggrp(struct atk_data *data, u16 mux) { … } static union acpi_object *atk_gitm(struct atk_data *data, u64 id) { … } static union acpi_object *atk_sitm(struct atk_data *data, struct atk_acpi_input_buf *buf) { … } static int atk_read_value_new(struct atk_sensor_data *sensor, u64 *value) { … } static int atk_read_value(struct atk_sensor_data *sensor, u64 *value) { … } #ifdef CONFIG_DEBUG_FS static int atk_debugfs_gitm_get(void *p, u64 *val) { … } DEFINE_DEBUGFS_ATTRIBUTE(…); static int atk_acpi_print(char *buf, size_t sz, union acpi_object *obj) { … } static void atk_pack_print(char *buf, size_t sz, union acpi_object *pack) { … } static int atk_debugfs_ggrp_open(struct inode *inode, struct file *file) { … } static ssize_t atk_debugfs_ggrp_read(struct file *file, char __user *buf, size_t count, loff_t *pos) { … } static int atk_debugfs_ggrp_release(struct inode *inode, struct file *file) { … } static const struct file_operations atk_debugfs_ggrp_fops = …; static void atk_debugfs_init(struct atk_data *data) { … } static void atk_debugfs_cleanup(struct atk_data *data) { … } #else /* CONFIG_DEBUG_FS */ static void atk_debugfs_init(struct atk_data *data) { } static void atk_debugfs_cleanup(struct atk_data *data) { } #endif static int atk_add_sensor(struct atk_data *data, union acpi_object *obj) { … } static int atk_enumerate_old_hwmon(struct atk_data *data) { … } static int atk_ec_present(struct atk_data *data) { … } static int atk_ec_enabled(struct atk_data *data) { … } static int atk_ec_ctl(struct atk_data *data, int enable) { … } static int atk_enumerate_new_hwmon(struct atk_data *data) { … } static int atk_init_attribute_groups(struct atk_data *data) { … } static int atk_register_hwmon(struct atk_data *data) { … } static int atk_probe_if(struct atk_data *data) { … } static int atk_add(struct acpi_device *device) { … } static void atk_remove(struct acpi_device *device) { … } static int __init atk0110_init(void) { … } static void __exit atk0110_exit(void) { … } module_init(…) …; module_exit(atk0110_exit); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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