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편집 파일: hwmon.h

/* SPDX-License-Identifier: GPL-2.0-only */ /* hwmon.h - part of lm_sensors, Linux kernel modules for hardware monitoring This file declares helper functions for the sysfs class "hwmon", for use by sensors drivers. Copyright (C) 2005 Mark M. Hoffman <mhoffman@lightlink.com> */ #ifndef _HWMON_H_ #define _HWMON_H_ #include <linux/bitops.h> struct device; struct attribute_group; enum hwmon_sensor_types { hwmon_chip, hwmon_temp, hwmon_in, hwmon_curr, hwmon_power, hwmon_energy, hwmon_humidity, hwmon_fan, hwmon_pwm, hwmon_intrusion, hwmon_max, }; enum hwmon_chip_attributes { hwmon_chip_temp_reset_history, hwmon_chip_in_reset_history, hwmon_chip_curr_reset_history, hwmon_chip_power_reset_history, hwmon_chip_register_tz, hwmon_chip_update_interval, hwmon_chip_alarms, hwmon_chip_samples, hwmon_chip_curr_samples, hwmon_chip_in_samples, hwmon_chip_power_samples, hwmon_chip_temp_samples, }; #define HWMON_C_TEMP_RESET_HISTORY BIT(hwmon_chip_temp_reset_history) #define HWMON_C_IN_RESET_HISTORY BIT(hwmon_chip_in_reset_history) #define HWMON_C_CURR_RESET_HISTORY BIT(hwmon_chip_curr_reset_history) #define HWMON_C_POWER_RESET_HISTORY BIT(hwmon_chip_power_reset_history) #define HWMON_C_REGISTER_TZ BIT(hwmon_chip_register_tz) #define HWMON_C_UPDATE_INTERVAL BIT(hwmon_chip_update_interval) #define HWMON_C_ALARMS BIT(hwmon_chip_alarms) #define HWMON_C_SAMPLES BIT(hwmon_chip_samples) #define HWMON_C_CURR_SAMPLES BIT(hwmon_chip_curr_samples) #define HWMON_C_IN_SAMPLES BIT(hwmon_chip_in_samples) #define HWMON_C_POWER_SAMPLES BIT(hwmon_chip_power_samples) #define HWMON_C_TEMP_SAMPLES BIT(hwmon_chip_temp_samples) enum hwmon_temp_attributes { hwmon_temp_enable, hwmon_temp_input, hwmon_temp_type, hwmon_temp_lcrit, hwmon_temp_lcrit_hyst, hwmon_temp_min, hwmon_temp_min_hyst, hwmon_temp_max, hwmon_temp_max_hyst, hwmon_temp_crit, hwmon_temp_crit_hyst, hwmon_temp_emergency, hwmon_temp_emergency_hyst, hwmon_temp_alarm, hwmon_temp_lcrit_alarm, hwmon_temp_min_alarm, hwmon_temp_max_alarm, hwmon_temp_crit_alarm, hwmon_temp_emergency_alarm, hwmon_temp_fault, hwmon_temp_offset, hwmon_temp_label, hwmon_temp_lowest, hwmon_temp_highest, hwmon_temp_reset_history, hwmon_temp_rated_min, hwmon_temp_rated_max, }; #define HWMON_T_ENABLE BIT(hwmon_temp_enable) #define HWMON_T_INPUT BIT(hwmon_temp_input) #define HWMON_T_TYPE BIT(hwmon_temp_type) #define HWMON_T_LCRIT BIT(hwmon_temp_lcrit) #define HWMON_T_LCRIT_HYST BIT(hwmon_temp_lcrit_hyst) #define HWMON_T_MIN BIT(hwmon_temp_min) #define HWMON_T_MIN_HYST BIT(hwmon_temp_min_hyst) #define HWMON_T_MAX BIT(hwmon_temp_max) #define HWMON_T_MAX_HYST BIT(hwmon_temp_max_hyst) #define HWMON_T_CRIT BIT(hwmon_temp_crit) #define HWMON_T_CRIT_HYST BIT(hwmon_temp_crit_hyst) #define HWMON_T_EMERGENCY BIT(hwmon_temp_emergency) #define HWMON_T_EMERGENCY_HYST BIT(hwmon_temp_emergency_hyst) #define HWMON_T_ALARM BIT(hwmon_temp_alarm) #define HWMON_T_MIN_ALARM BIT(hwmon_temp_min_alarm) #define HWMON_T_MAX_ALARM BIT(hwmon_temp_max_alarm) #define HWMON_T_CRIT_ALARM BIT(hwmon_temp_crit_alarm) #define HWMON_T_LCRIT_ALARM BIT(hwmon_temp_lcrit_alarm) #define HWMON_T_EMERGENCY_ALARM BIT(hwmon_temp_emergency_alarm) #define HWMON_T_FAULT BIT(hwmon_temp_fault) #define HWMON_T_OFFSET BIT(hwmon_temp_offset) #define HWMON_T_LABEL BIT(hwmon_temp_label) #define HWMON_T_LOWEST BIT(hwmon_temp_lowest) #define HWMON_T_HIGHEST BIT(hwmon_temp_highest) #define HWMON_T_RESET_HISTORY BIT(hwmon_temp_reset_history) #define HWMON_T_RATED_MIN BIT(hwmon_temp_rated_min) #define HWMON_T_RATED_MAX BIT(hwmon_temp_rated_max) enum hwmon_in_attributes { hwmon_in_enable, hwmon_in_input, hwmon_in_min, hwmon_in_max, hwmon_in_lcrit, hwmon_in_crit, hwmon_in_average, hwmon_in_lowest, hwmon_in_highest, hwmon_in_reset_history, hwmon_in_label, hwmon_in_alarm, hwmon_in_min_alarm, hwmon_in_max_alarm, hwmon_in_lcrit_alarm, hwmon_in_crit_alarm, hwmon_in_rated_min, hwmon_in_rated_max, }; #define HWMON_I_ENABLE BIT(hwmon_in_enable) #define HWMON_I_INPUT BIT(hwmon_in_input) #define HWMON_I_MIN BIT(hwmon_in_min) #define HWMON_I_MAX BIT(hwmon_in_max) #define HWMON_I_LCRIT BIT(hwmon_in_lcrit) #define HWMON_I_CRIT BIT(hwmon_in_crit) #define HWMON_I_AVERAGE BIT(hwmon_in_average) #define HWMON_I_LOWEST BIT(hwmon_in_lowest) #define HWMON_I_HIGHEST BIT(hwmon_in_highest) #define HWMON_I_RESET_HISTORY BIT(hwmon_in_reset_history) #define HWMON_I_LABEL BIT(hwmon_in_label) #define HWMON_I_ALARM BIT(hwmon_in_alarm) #define HWMON_I_MIN_ALARM BIT(hwmon_in_min_alarm) #define HWMON_I_MAX_ALARM BIT(hwmon_in_max_alarm) #define HWMON_I_LCRIT_ALARM BIT(hwmon_in_lcrit_alarm) #define HWMON_I_CRIT_ALARM BIT(hwmon_in_crit_alarm) #define HWMON_I_RATED_MIN BIT(hwmon_in_rated_min) #define HWMON_I_RATED_MAX BIT(hwmon_in_rated_max) enum hwmon_curr_attributes { hwmon_curr_enable, hwmon_curr_input, hwmon_curr_min, hwmon_curr_max, hwmon_curr_lcrit, hwmon_curr_crit, hwmon_curr_average, hwmon_curr_lowest, hwmon_curr_highest, hwmon_curr_reset_history, hwmon_curr_label, hwmon_curr_alarm, hwmon_curr_min_alarm, hwmon_curr_max_alarm, hwmon_curr_lcrit_alarm, hwmon_curr_crit_alarm, hwmon_curr_rated_min, hwmon_curr_rated_max, }; #define HWMON_C_ENABLE BIT(hwmon_curr_enable) #define HWMON_C_INPUT BIT(hwmon_curr_input) #define HWMON_C_MIN BIT(hwmon_curr_min) #define HWMON_C_MAX BIT(hwmon_curr_max) #define HWMON_C_LCRIT BIT(hwmon_curr_lcrit) #define HWMON_C_CRIT BIT(hwmon_curr_crit) #define HWMON_C_AVERAGE BIT(hwmon_curr_average) #define HWMON_C_LOWEST BIT(hwmon_curr_lowest) #define HWMON_C_HIGHEST BIT(hwmon_curr_highest) #define HWMON_C_RESET_HISTORY BIT(hwmon_curr_reset_history) #define HWMON_C_LABEL BIT(hwmon_curr_label) #define HWMON_C_ALARM BIT(hwmon_curr_alarm) #define HWMON_C_MIN_ALARM BIT(hwmon_curr_min_alarm) #define HWMON_C_MAX_ALARM BIT(hwmon_curr_max_alarm) #define HWMON_C_LCRIT_ALARM BIT(hwmon_curr_lcrit_alarm) #define HWMON_C_CRIT_ALARM BIT(hwmon_curr_crit_alarm) #define HWMON_C_RATED_MIN BIT(hwmon_curr_rated_min) #define HWMON_C_RATED_MAX BIT(hwmon_curr_rated_max) enum hwmon_power_attributes { hwmon_power_enable, hwmon_power_average, hwmon_power_average_interval, hwmon_power_average_interval_max, hwmon_power_average_interval_min, hwmon_power_average_highest, hwmon_power_average_lowest, hwmon_power_average_max, hwmon_power_average_min, hwmon_power_input, hwmon_power_input_highest, hwmon_power_input_lowest, hwmon_power_reset_history, hwmon_power_accuracy, hwmon_power_cap, hwmon_power_cap_hyst, hwmon_power_cap_max, hwmon_power_cap_min, hwmon_power_min, hwmon_power_max, hwmon_power_crit, hwmon_power_lcrit, hwmon_power_label, hwmon_power_alarm, hwmon_power_cap_alarm, hwmon_power_min_alarm, hwmon_power_max_alarm, hwmon_power_lcrit_alarm, hwmon_power_crit_alarm, hwmon_power_rated_min, hwmon_power_rated_max, }; #define HWMON_P_ENABLE BIT(hwmon_power_enable) #define HWMON_P_AVERAGE BIT(hwmon_power_average) #define HWMON_P_AVERAGE_INTERVAL BIT(hwmon_power_average_interval) #define HWMON_P_AVERAGE_INTERVAL_MAX BIT(hwmon_power_average_interval_max) #define HWMON_P_AVERAGE_INTERVAL_MIN BIT(hwmon_power_average_interval_min) #define HWMON_P_AVERAGE_HIGHEST BIT(hwmon_power_average_highest) #define HWMON_P_AVERAGE_LOWEST BIT(hwmon_power_average_lowest) #define HWMON_P_AVERAGE_MAX BIT(hwmon_power_average_max) #define HWMON_P_AVERAGE_MIN BIT(hwmon_power_average_min) #define HWMON_P_INPUT BIT(hwmon_power_input) #define HWMON_P_INPUT_HIGHEST BIT(hwmon_power_input_highest) #define HWMON_P_INPUT_LOWEST BIT(hwmon_power_input_lowest) #define HWMON_P_RESET_HISTORY BIT(hwmon_power_reset_history) #define HWMON_P_ACCURACY BIT(hwmon_power_accuracy) #define HWMON_P_CAP BIT(hwmon_power_cap) #define HWMON_P_CAP_HYST BIT(hwmon_power_cap_hyst) #define HWMON_P_CAP_MAX BIT(hwmon_power_cap_max) #define HWMON_P_CAP_MIN BIT(hwmon_power_cap_min) #define HWMON_P_MIN BIT(hwmon_power_min) #define HWMON_P_MAX BIT(hwmon_power_max) #define HWMON_P_LCRIT BIT(hwmon_power_lcrit) #define HWMON_P_CRIT BIT(hwmon_power_crit) #define HWMON_P_LABEL BIT(hwmon_power_label) #define HWMON_P_ALARM BIT(hwmon_power_alarm) #define HWMON_P_CAP_ALARM BIT(hwmon_power_cap_alarm) #define HWMON_P_MIN_ALARM BIT(hwmon_power_min_alarm) #define HWMON_P_MAX_ALARM BIT(hwmon_power_max_alarm) #define HWMON_P_LCRIT_ALARM BIT(hwmon_power_lcrit_alarm) #define HWMON_P_CRIT_ALARM BIT(hwmon_power_crit_alarm) #define HWMON_P_RATED_MIN BIT(hwmon_power_rated_min) #define HWMON_P_RATED_MAX BIT(hwmon_power_rated_max) enum hwmon_energy_attributes { hwmon_energy_enable, hwmon_energy_input, hwmon_energy_label, }; #define HWMON_E_ENABLE BIT(hwmon_energy_enable) #define HWMON_E_INPUT BIT(hwmon_energy_input) #define HWMON_E_LABEL BIT(hwmon_energy_label) enum hwmon_humidity_attributes { hwmon_humidity_enable, hwmon_humidity_input, hwmon_humidity_label, hwmon_humidity_min, hwmon_humidity_min_hyst, hwmon_humidity_max, hwmon_humidity_max_hyst, hwmon_humidity_alarm, hwmon_humidity_fault, hwmon_humidity_rated_min, hwmon_humidity_rated_max, }; #define HWMON_H_ENABLE BIT(hwmon_humidity_enable) #define HWMON_H_INPUT BIT(hwmon_humidity_input) #define HWMON_H_LABEL BIT(hwmon_humidity_label) #define HWMON_H_MIN BIT(hwmon_humidity_min) #define HWMON_H_MIN_HYST BIT(hwmon_humidity_min_hyst) #define HWMON_H_MAX BIT(hwmon_humidity_max) #define HWMON_H_MAX_HYST BIT(hwmon_humidity_max_hyst) #define HWMON_H_ALARM BIT(hwmon_humidity_alarm) #define HWMON_H_FAULT BIT(hwmon_humidity_fault) #define HWMON_H_RATED_MIN BIT(hwmon_humidity_rated_min) #define HWMON_H_RATED_MAX BIT(hwmon_humidity_rated_max) enum hwmon_fan_attributes { hwmon_fan_enable, hwmon_fan_input, hwmon_fan_label, hwmon_fan_min, hwmon_fan_max, hwmon_fan_div, hwmon_fan_pulses, hwmon_fan_target, hwmon_fan_alarm, hwmon_fan_min_alarm, hwmon_fan_max_alarm, hwmon_fan_fault, }; #define HWMON_F_ENABLE BIT(hwmon_fan_enable) #define HWMON_F_INPUT BIT(hwmon_fan_input) #define HWMON_F_LABEL BIT(hwmon_fan_label) #define HWMON_F_MIN BIT(hwmon_fan_min) #define HWMON_F_MAX BIT(hwmon_fan_max) #define HWMON_F_DIV BIT(hwmon_fan_div) #define HWMON_F_PULSES BIT(hwmon_fan_pulses) #define HWMON_F_TARGET BIT(hwmon_fan_target) #define HWMON_F_ALARM BIT(hwmon_fan_alarm) #define HWMON_F_MIN_ALARM BIT(hwmon_fan_min_alarm) #define HWMON_F_MAX_ALARM BIT(hwmon_fan_max_alarm) #define HWMON_F_FAULT BIT(hwmon_fan_fault) enum hwmon_pwm_attributes { hwmon_pwm_input, hwmon_pwm_enable, hwmon_pwm_mode, hwmon_pwm_freq, }; #define HWMON_PWM_INPUT BIT(hwmon_pwm_input) #define HWMON_PWM_ENABLE BIT(hwmon_pwm_enable) #define HWMON_PWM_MODE BIT(hwmon_pwm_mode) #define HWMON_PWM_FREQ BIT(hwmon_pwm_freq) enum hwmon_intrusion_attributes { hwmon_intrusion_alarm, hwmon_intrusion_beep, }; #define HWMON_INTRUSION_ALARM BIT(hwmon_intrusion_alarm) #define HWMON_INTRUSION_BEEP BIT(hwmon_intrusion_beep) /** * struct hwmon_ops - hwmon device operations * @is_visible: Callback to return attribute visibility. Mandatory. * Parameters are: * @const void *drvdata: * Pointer to driver-private data structure passed * as argument to hwmon_device_register_with_info(). * @type: Sensor type * @attr: Sensor attribute * @channel: * Channel number * The function returns the file permissions. * If the return value is 0, no attribute will be created. * @read: Read callback for data attributes. Mandatory if readable * data attributes are present. * Parameters are: * @dev: Pointer to hardware monitoring device * @type: Sensor type * @attr: Sensor attribute * @channel: * Channel number * @val: Pointer to returned value * The function returns 0 on success or a negative error number. * @read_string: * Read callback for string attributes. Mandatory if string * attributes are present. * Parameters are: * @dev: Pointer to hardware monitoring device * @type: Sensor type * @attr: Sensor attribute * @channel: * Channel number * @str: Pointer to returned string * The function returns 0 on success or a negative error number. * @write: Write callback for data attributes. Mandatory if writeable * data attributes are present. * Parameters are: * @dev: Pointer to hardware monitoring device * @type: Sensor type * @attr: Sensor attribute * @channel: * Channel number * @val: Value to write * The function returns 0 on success or a negative error number. */ struct hwmon_ops { umode_t (*is_visible)(const void *drvdata, enum hwmon_sensor_types type, u32 attr, int channel); int (*read)(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val); int (*read_string)(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, const char **str); int (*write)(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long val); }; /** * Channel information * @type: Channel type. * @config: Pointer to NULL-terminated list of channel parameters. * Use for per-channel attributes. */ struct hwmon_channel_info { enum hwmon_sensor_types type; const u32 *config; }; #define HWMON_CHANNEL_INFO(stype, ...) \ (&(struct hwmon_channel_info) { \ .type = hwmon_##stype, \ .config = (u32 []) { \ __VA_ARGS__, 0 \ } \ }) /** * Chip configuration * @ops: Pointer to hwmon operations. * @info: Null-terminated list of channel information. */ struct hwmon_chip_info { const struct hwmon_ops *ops; const struct hwmon_channel_info * const *info; }; /* hwmon_device_register() is deprecated */ struct device *hwmon_device_register(struct device *dev); struct device * hwmon_device_register_with_groups(struct device *dev, const char *name, void *drvdata, const struct attribute_group **groups); struct device * devm_hwmon_device_register_with_groups(struct device *dev, const char *name, void *drvdata, const struct attribute_group **groups); struct device * hwmon_device_register_with_info(struct device *dev, const char *name, void *drvdata, const struct hwmon_chip_info *info, const struct attribute_group **extra_groups); struct device * hwmon_device_register_for_thermal(struct device *dev, const char *name, void *drvdata); struct device * devm_hwmon_device_register_with_info(struct device *dev, const char *name, void *drvdata, const struct hwmon_chip_info *info, const struct attribute_group **extra_groups); void hwmon_device_unregister(struct device *dev); void devm_hwmon_device_unregister(struct device *dev); int hwmon_notify_event(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel); char *hwmon_sanitize_name(const char *name); char *devm_hwmon_sanitize_name(struct device *dev, const char *name); /** * hwmon_is_bad_char - Is the char invalid in a hwmon name * @ch: the char to be considered * * hwmon_is_bad_char() can be used to determine if the given character * may not be used in a hwmon name. * * Returns true if the char is invalid, false otherwise. */ static inline bool hwmon_is_bad_char(const char ch) { switch (ch) { case '-': case '*': case ' ': case '\t': case '\n': return true; default: return false; } } #endif