143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/* Copyright (C) 2022, Linaro Ltd - Daniel Lezcano <daniel.lezcano@linaro.org> */
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#ifndef __LIBTHERMAL_H
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#define __LIBTHERMAL_H
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#include <linux/thermal.h>
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#ifndef LIBTHERMAL_API
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#define LIBTHERMAL_API __attribute__((visibility("default")))
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct thermal_sampling_ops {
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int (*tz_temp)(int tz_id, int temp, void *arg);
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};
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struct thermal_events_ops {
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int (*tz_create)(const char *name, int tz_id, void *arg);
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int (*tz_delete)(int tz_id, void *arg);
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int (*tz_enable)(int tz_id, void *arg);
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int (*tz_disable)(int tz_id, void *arg);
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int (*trip_high)(int tz_id, int trip_id, int temp, void *arg);
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int (*trip_low)(int tz_id, int trip_id, int temp, void *arg);
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int (*trip_add)(int tz_id, int trip_id, int type, int temp, int hyst, void *arg);
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int (*trip_change)(int tz_id, int trip_id, int type, int temp, int hyst, void *arg);
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int (*trip_delete)(int tz_id, int trip_id, void *arg);
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int (*cdev_add)(const char *name, int cdev_id, int max_state, void *arg);
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int (*cdev_delete)(int cdev_id, void *arg);
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int (*cdev_update)(int cdev_id, int cur_state, void *arg);
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int (*gov_change)(int tz_id, const char *gov_name, void *arg);
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};
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struct thermal_ops {
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struct thermal_sampling_ops sampling;
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struct thermal_events_ops events;
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};
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struct thermal_trip {
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int id;
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int type;
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int temp;
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int hyst;
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};
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struct thermal_zone {
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int id;
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int temp;
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char name[THERMAL_NAME_LENGTH];
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char governor[THERMAL_NAME_LENGTH];
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struct thermal_trip *trip;
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};
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struct thermal_cdev {
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int id;
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char name[THERMAL_NAME_LENGTH];
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int max_state;
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int min_state;
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int cur_state;
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};
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typedef enum {
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THERMAL_ERROR = -1,
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THERMAL_SUCCESS = 0,
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} thermal_error_t;
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struct thermal_handler;
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typedef int (*cb_tz_t)(struct thermal_zone *, void *);
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typedef int (*cb_tt_t)(struct thermal_trip *, void *);
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typedef int (*cb_tc_t)(struct thermal_cdev *, void *);
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LIBTHERMAL_API int for_each_thermal_zone(struct thermal_zone *tz, cb_tz_t cb, void *arg);
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LIBTHERMAL_API int for_each_thermal_trip(struct thermal_trip *tt, cb_tt_t cb, void *arg);
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LIBTHERMAL_API int for_each_thermal_cdev(struct thermal_cdev *cdev, cb_tc_t cb, void *arg);
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LIBTHERMAL_API struct thermal_zone *thermal_zone_find_by_name(struct thermal_zone *tz,
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const char *name);
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LIBTHERMAL_API struct thermal_zone *thermal_zone_find_by_id(struct thermal_zone *tz, int id);
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LIBTHERMAL_API struct thermal_zone *thermal_zone_discover(struct thermal_handler *th);
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LIBTHERMAL_API struct thermal_handler *thermal_init(struct thermal_ops *ops);
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LIBTHERMAL_API void thermal_exit(struct thermal_handler *th);
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/*
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* Netlink thermal events
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*/
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LIBTHERMAL_API thermal_error_t thermal_events_exit(struct thermal_handler *th);
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LIBTHERMAL_API thermal_error_t thermal_events_init(struct thermal_handler *th);
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LIBTHERMAL_API thermal_error_t thermal_events_handle(struct thermal_handler *th, void *arg);
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LIBTHERMAL_API int thermal_events_fd(struct thermal_handler *th);
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/*
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* Netlink thermal commands
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*/
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LIBTHERMAL_API thermal_error_t thermal_cmd_exit(struct thermal_handler *th);
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LIBTHERMAL_API thermal_error_t thermal_cmd_init(struct thermal_handler *th);
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LIBTHERMAL_API thermal_error_t thermal_cmd_get_tz(struct thermal_handler *th,
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struct thermal_zone **tz);
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LIBTHERMAL_API thermal_error_t thermal_cmd_get_cdev(struct thermal_handler *th,
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struct thermal_cdev **tc);
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LIBTHERMAL_API thermal_error_t thermal_cmd_get_trip(struct thermal_handler *th,
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struct thermal_zone *tz);
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LIBTHERMAL_API thermal_error_t thermal_cmd_get_governor(struct thermal_handler *th,
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struct thermal_zone *tz);
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LIBTHERMAL_API thermal_error_t thermal_cmd_get_temp(struct thermal_handler *th,
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struct thermal_zone *tz);
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/*
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* Netlink thermal samples
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*/
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LIBTHERMAL_API thermal_error_t thermal_sampling_exit(struct thermal_handler *th);
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LIBTHERMAL_API thermal_error_t thermal_sampling_init(struct thermal_handler *th);
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LIBTHERMAL_API thermal_error_t thermal_sampling_handle(struct thermal_handler *th, void *arg);
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LIBTHERMAL_API int thermal_sampling_fd(struct thermal_handler *th);
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#endif /* __LIBTHERMAL_H */
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#ifdef __cplusplus
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}
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#endif
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