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/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
#ifndef __HWMON_PMU_H
#define __HWMON_PMU_H
#include "pmu.h"
#include <stdbool.h>
struct list_head;
struct perf_thread_map;
/**
* enum hwmon_type:
*
* As described in Documentation/hwmon/sysfs-interface.rst hwmon events are
* defined over multiple files of the form <type><num>_<item>. This enum
* captures potential <type> values.
*
* This enum is exposed for testing.
*/
enum hwmon_type {
HWMON_TYPE_NONE,
HWMON_TYPE_CPU,
HWMON_TYPE_CURR,
HWMON_TYPE_ENERGY,
HWMON_TYPE_FAN,
HWMON_TYPE_HUMIDITY,
HWMON_TYPE_IN,
HWMON_TYPE_INTRUSION,
HWMON_TYPE_POWER,
HWMON_TYPE_PWM,
HWMON_TYPE_TEMP,
HWMON_TYPE_MAX
};
/**
* enum hwmon_item:
*
* Similar to enum hwmon_type but describes the item part of a a sysfs filename.
*
* This enum is exposed for testing.
*/
enum hwmon_item {
HWMON_ITEM_NONE,
HWMON_ITEM_ACCURACY,
HWMON_ITEM_ALARM,
HWMON_ITEM_AUTO_CHANNELS_TEMP,
HWMON_ITEM_AVERAGE,
HWMON_ITEM_AVERAGE_HIGHEST,
HWMON_ITEM_AVERAGE_INTERVAL,
HWMON_ITEM_AVERAGE_INTERVAL_MAX,
HWMON_ITEM_AVERAGE_INTERVAL_MIN,
HWMON_ITEM_AVERAGE_LOWEST,
HWMON_ITEM_AVERAGE_MAX,
HWMON_ITEM_AVERAGE_MIN,
HWMON_ITEM_BEEP,
HWMON_ITEM_CAP,
HWMON_ITEM_CAP_HYST,
HWMON_ITEM_CAP_MAX,
HWMON_ITEM_CAP_MIN,
HWMON_ITEM_CRIT,
HWMON_ITEM_CRIT_HYST,
HWMON_ITEM_DIV,
HWMON_ITEM_EMERGENCY,
HWMON_ITEM_EMERGENCY_HIST,
HWMON_ITEM_ENABLE,
HWMON_ITEM_FAULT,
HWMON_ITEM_FREQ,
HWMON_ITEM_HIGHEST,
HWMON_ITEM_INPUT,
HWMON_ITEM_LABEL,
HWMON_ITEM_LCRIT,
HWMON_ITEM_LCRIT_HYST,
HWMON_ITEM_LOWEST,
HWMON_ITEM_MAX,
HWMON_ITEM_MAX_HYST,
HWMON_ITEM_MIN,
HWMON_ITEM_MIN_HYST,
HWMON_ITEM_MOD,
HWMON_ITEM_OFFSET,
HWMON_ITEM_PULSES,
HWMON_ITEM_RATED_MAX,
HWMON_ITEM_RATED_MIN,
HWMON_ITEM_RESET_HISTORY,
HWMON_ITEM_TARGET,
HWMON_ITEM_TYPE,
HWMON_ITEM_VID,
HWMON_ITEM__MAX,
};
bool perf_pmu__is_hwmon(const struct perf_pmu *pmu);
bool evsel__is_hwmon(const struct evsel *evsel);
/**
* parse_hwmon_filename() - Parse filename into constituent parts.
*
* @filename: To be parsed, of the form <type><number>_<item>.
* @type: The type defined from the parsed file name.
* @number: The number of the type, for example there may be more than 1 fan.
* @item: A hwmon <type><number> may have multiple associated items.
* @alarm: Is the filename for an alarm value?
*
* An example of a hwmon filename is "temp1_input". The type is temp for a
* temperature value. The number is 1. The item within the file is an input
* value - the temperature itself. This file doesn't contain an alarm value.
*
* Exposed for testing.
*/
bool parse_hwmon_filename(const char *filename,
enum hwmon_type *type,
int *number,
enum hwmon_item *item,
bool *alarm);
/**
* hwmon_pmu__new() - Allocate and construct a hwmon PMU.
*
* @pmus: The list of PMUs to be added to.
* @hwmon_dir: An O_DIRECTORY file descriptor for a hwmon directory.
* @sysfs_name: Name of the hwmon sysfs directory like hwmon0.
* @name: The contents of the "name" file in the hwmon directory.
*
* Exposed for testing. Regular construction should happen via
* perf_pmus__read_hwmon_pmus.
*/
struct perf_pmu *hwmon_pmu__new(struct list_head *pmus, int hwmon_dir,
const char *sysfs_name, const char *name);
void hwmon_pmu__exit(struct perf_pmu *pmu);
int hwmon_pmu__for_each_event(struct perf_pmu *pmu, void *state, pmu_event_callback cb);
size_t hwmon_pmu__num_events(struct perf_pmu *pmu);
bool hwmon_pmu__have_event(struct perf_pmu *pmu, const char *name);
int hwmon_pmu__config_terms(const struct perf_pmu *pmu,
struct perf_event_attr *attr,
struct parse_events_terms *terms,
struct parse_events_error *err);
int hwmon_pmu__check_alias(struct parse_events_terms *terms, struct perf_pmu_info *info,
struct parse_events_error *err);
int perf_pmus__read_hwmon_pmus(struct list_head *pmus);
int evsel__hwmon_pmu_open(struct evsel *evsel,
struct perf_thread_map *threads,
int start_cpu_map_idx, int end_cpu_map_idx);
int evsel__hwmon_pmu_read(struct evsel *evsel, int cpu_map_idx, int thread);
#endif /* __HWMON_PMU_H */
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