| /* 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, |
| hwmon_chip_beep_enable, |
| }; |
| |
| #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) |
| #define HWMON_C_BEEP_ENABLE BIT(hwmon_chip_beep_enable) |
| |
| 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, |
| hwmon_temp_beep, |
| }; |
| |
| #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) |
| #define HWMON_T_BEEP BIT(hwmon_temp_beep) |
| |
| 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, |
| hwmon_in_beep, |
| }; |
| |
| #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) |
| #define HWMON_I_BEEP BIT(hwmon_in_beep) |
| |
| 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, |
| hwmon_curr_beep, |
| }; |
| |
| #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) |
| #define HWMON_C_BEEP BIT(hwmon_curr_beep) |
| |
| 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, |
| hwmon_fan_beep, |
| }; |
| |
| #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) |
| #define HWMON_F_BEEP BIT(hwmon_fan_beep) |
| |
| enum hwmon_pwm_attributes { |
| hwmon_pwm_input, |
| hwmon_pwm_enable, |
| hwmon_pwm_mode, |
| hwmon_pwm_freq, |
| hwmon_pwm_auto_channels_temp, |
| }; |
| |
| #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) |
| #define HWMON_PWM_AUTO_CHANNELS_TEMP BIT(hwmon_pwm_auto_channels_temp) |
| |
| 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); |
| }; |
| |
| /** |
| * struct hwmon_channel_info - 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 \ |
| } \ |
| }) |
| |
| /** |
| * struct hwmon_chip_info - 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); |
| |
| /* |
| * hwmon_device_register_with_groups() and |
| * devm_hwmon_device_register_with_groups() are deprecated. |
| */ |
| 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 |
