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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __THERMAL_H
#define __THERMAL_H
// #include <linux/thermal.h>
#include <libnl3/netlink/genl/genl.h>
#include <libnl3/netlink/genl/mngt.h>
#include <libnl3/netlink/genl/ctrl.h>
#include <netlink/netlink.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/ctrl.h>
#define __maybe_unused __attribute__((__unused__))
#ifndef THERMAL_NAME_LENGTH
#define THERMAL_NAME_LENGTH 64
#endif
struct thermal_sampling_ops {
int (*tz_temp)(int tz_id, int temp, void *arg);
};
struct thermal_events_ops {
int (*tz_create)(const char *name, int tz_id, void *arg);
int (*tz_delete)(int tz_id, void *arg);
int (*tz_enable)(int tz_id, void *arg);
int (*tz_disable)(int tz_id, void *arg);
int (*trip_high)(int tz_id, int trip_id, int temp, void *arg);
int (*trip_low)(int tz_id, int trip_id, int temp, void *arg);
int (*trip_add)(int tz_id, int trip_id, int type, int temp, int hyst, void *arg);
int (*trip_change)(int tz_id, int trip_id, int type, int temp, int hyst, void *arg);
int (*trip_delete)(int tz_id, int trip_id, void *arg);
int (*cdev_add)(const char *name, int cdev_id, int max_state, void *arg);
int (*cdev_delete)(int cdev_id, void *arg);
int (*cdev_update)(int cdev_id, int cur_state, void *arg);
int (*gov_change)(int tz_id, const char *gov_name, void *arg);
};
struct thermal_ops {
struct thermal_sampling_ops sampling;
struct thermal_events_ops events;
};
struct thermal_trip {
int id;
int type;
int temp;
int hyst;
};
struct thermal_zone {
int id;
int temp;
char name[THERMAL_NAME_LENGTH];
char governor[THERMAL_NAME_LENGTH];
struct thermal_trip *trip;
};
struct thermal_cdev {
int id;
char name[THERMAL_NAME_LENGTH];
int max_state;
int min_state;
int cur_state;
};
struct thermal_handler {
int done;
int error;
struct thermal_ops *ops;
struct nl_msg *msg;
struct nl_sock *sk_event;
struct nl_sock *sk_sampling;
struct nl_sock *sk_cmd;
struct nl_cb *cb_cmd;
struct nl_cb *cb_event;
struct nl_cb *cb_sampling;
};
struct thermal_handler_param {
struct thermal_handler *th;
void *arg;
};
typedef int (*cb_tz_t)(struct thermal_zone *, void *);
typedef int (*cb_tt_t)(struct thermal_trip *, void *);
typedef int (*cb_tc_t)(struct thermal_cdev *, void *);
int for_each_thermal_zone(struct thermal_zone *tz, cb_tz_t cb, void *arg);
int for_each_thermal_trip(struct thermal_trip *tt, cb_tt_t cb, void *arg);
int for_each_thermal_cdev(struct thermal_cdev *cdev, cb_tc_t cb, void *arg);
struct thermal_zone *thermal_zone_discover(struct thermal_handler *th);
struct thermal_handler *thermal_init(struct thermal_ops *ops);
/*
* Netlink thermal events
*/
extern int thermal_events_init(struct thermal_handler *th);
extern int thermal_events_handle(struct thermal_handler *th, void *arg);
extern int thermal_events_fd(struct thermal_handler *th);
/*
* Netlink thermal commands
*/
extern int thermal_cmd_init(struct thermal_handler *th);
extern int thermal_cmd_get_tz(struct thermal_handler *th, struct thermal_zone **tz);
extern int thermal_cmd_get_cdev(struct thermal_handler *th, struct thermal_cdev **tc);
extern int thermal_cmd_get_trip(struct thermal_handler *th, struct thermal_zone *tz);
extern int thermal_cmd_get_governor(struct thermal_handler *th, struct thermal_zone *tz);
extern int thermal_cmd_get_temp(struct thermal_handler *th, struct thermal_zone *tz);
/*
* Netlink thermal samples
*/
extern int thermal_sampling_init(struct thermal_handler *th);
extern int thermal_sampling_handle(struct thermal_handler *th, void *arg);
extern int thermal_sampling_fd(struct thermal_handler *th);
/*
* Low level netlink
*/
extern int nl_subscribe_thermal(struct nl_sock *nl_sock, struct nl_cb *nl_cb,
const char *group);
extern int nl_thermal_connect(struct nl_sock **nl_sock, struct nl_cb **nl_cb);
extern void nl_thermal_disconnect(struct nl_sock *nl_sock, struct nl_cb *nl_cb);
extern int nl_send_msg(struct nl_sock *sock, struct nl_cb *nl_cb, struct nl_msg *msg,
int (*rx_handler)(struct nl_msg *, void *),
void *data);
#endif /* __THERMAL_H */
/*
* The netlink notification for thermal is new and the thermal uapi
* may be not installed yet. Provide the default values, so we can go
* forward until the linux-headers are available.
*/
#ifndef THERMAL_GENL_VERSION
#warning "Thermal kernel/userspace API is not up-to-date, " \
"please update the linux-headers"
/* Adding event notification support elements */
#undef THERMAL_GENL_FAMILY_NAME
#undef THERMAL_GENL_VERSION
#define THERMAL_GENL_FAMILY_NAME "thermal"
#define THERMAL_GENL_VERSION 0x01
#define THERMAL_GENL_SAMPLING_GROUP_NAME "sampling"
#define THERMAL_GENL_EVENT_GROUP_NAME "event"
/* Attributes of thermal_genl_family */
enum thermal_genl_attr {
THERMAL_GENL_ATTR_UNSPEC,
THERMAL_GENL_ATTR_TZ,
THERMAL_GENL_ATTR_TZ_ID,
THERMAL_GENL_ATTR_TZ_TEMP,
THERMAL_GENL_ATTR_TZ_TRIP,
THERMAL_GENL_ATTR_TZ_TRIP_ID,
THERMAL_GENL_ATTR_TZ_TRIP_TYPE,
THERMAL_GENL_ATTR_TZ_TRIP_TEMP,
THERMAL_GENL_ATTR_TZ_TRIP_HYST,
THERMAL_GENL_ATTR_TZ_MODE,
THERMAL_GENL_ATTR_TZ_NAME,
THERMAL_GENL_ATTR_TZ_CDEV_WEIGHT,
THERMAL_GENL_ATTR_TZ_GOV,
THERMAL_GENL_ATTR_TZ_GOV_NAME,
THERMAL_GENL_ATTR_CDEV,
THERMAL_GENL_ATTR_CDEV_ID,
THERMAL_GENL_ATTR_CDEV_CUR_STATE,
THERMAL_GENL_ATTR_CDEV_MAX_STATE,
THERMAL_GENL_ATTR_CDEV_NAME,
THERMAL_GENL_ATTR_GOV_NAME,
__THERMAL_GENL_ATTR_MAX,
};
#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
enum thermal_genl_sampling {
THERMAL_GENL_SAMPLING_TEMP,
__THERMAL_GENL_SAMPLING_MAX,
};
#define THERMAL_GENL_SAMPLING_MAX (__THERMAL_GENL_SAMPLING_MAX - 1)
/* Events of thermal_genl_family */
enum thermal_genl_event {
THERMAL_GENL_EVENT_UNSPEC,
THERMAL_GENL_EVENT_TZ_CREATE,/* Thermal zone creation */
THERMAL_GENL_EVENT_TZ_DELETE,/* Thermal zone deletion */
THERMAL_GENL_EVENT_TZ_DISABLE,/* Thermal zone disabed */
THERMAL_GENL_EVENT_TZ_ENABLE,/* Thermal zone enabled */
THERMAL_GENL_EVENT_TZ_TRIP_HIGH,/* Trip point crossed the way up */
THERMAL_GENL_EVENT_TZ_TRIP_LOW,/* Trip point crossed the way down */
THERMAL_GENL_EVENT_TZ_TRIP_CHANGE,/* Trip point changed */
THERMAL_GENL_EVENT_TZ_TRIP_ADD,/* Trip point added */
THERMAL_GENL_EVENT_TZ_TRIP_DELETE,/* Trip point deleted */
THERMAL_GENL_EVENT_TZ_CDEV_ADD, /* Cdev bound to the thermal zone */
THERMAL_GENL_EVENT_TZ_CDEV_DELETE,/* Cdev unbound */
THERMAL_GENL_EVENT_TZ_CDEV_UPDATE,/* Cdev state updated */
THERMAL_GENL_EVENT_TZ_GOV_CHANGE,/* Governor policy changed */
__THERMAL_GENL_EVENT_MAX,
};
#define THERMAL_GENL_EVENT_MAX (__THERMAL_GENL_EVENT_MAX - 1)
/* Commands supported by the thermal_genl_family */
enum thermal_genl_cmd {
THERMAL_GENL_CMD_UNSPEC,
THERMAL_GENL_CMD_TZ_GET,/* List thermal zones id */
THERMAL_GENL_CMD_TZ_GET_TRIP,/* List of thermal trips */
THERMAL_GENL_CMD_TZ_GET_TEMP,/* Get the thermal zone temperature */
THERMAL_GENL_CMD_TZ_GET_GOV,/* Get the thermal zone governor */
THERMAL_GENL_CMD_TZ_GET_MODE,/* Get the thermal zone mode */
THERMAL_GENL_CMD_CDEV_GET,/* List of cdev id */
__THERMAL_GENL_CMD_MAX,
};
#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
#endif
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