v4.19.13 snapshot.
diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
new file mode 100644
index 0000000..9493d4a
--- /dev/null
+++ b/include/linux/hwmon.h
@@ -0,0 +1,424 @@
+/*
+ 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>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+*/
+
+#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_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,
+};
+
+#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)
+
+enum hwmon_temp_attributes {
+ hwmon_temp_input = 0,
+ 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,
+};
+
+#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)
+
+enum hwmon_in_attributes {
+ 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,
+};
+
+#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)
+
+enum hwmon_curr_attributes {
+ 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,
+};
+
+#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)
+
+enum hwmon_power_attributes {
+ 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,
+};
+
+#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_max_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)
+
+enum hwmon_energy_attributes {
+ hwmon_energy_input,
+ hwmon_energy_label,
+};
+
+#define HWMON_E_INPUT BIT(hwmon_energy_input)
+#define HWMON_E_LABEL BIT(hwmon_energy_label)
+
+enum hwmon_humidity_attributes {
+ 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,
+};
+
+#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)
+
+enum hwmon_fan_attributes {
+ 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_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)
+
+/**
+ * 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;
+};
+
+/**
+ * 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 **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 *
+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);
+
+/**
+ * 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