// SPDX-License-Identifier: LGPL-2.1+// Copyright (C) 2022, Linaro Ltd - Daniel Lezcano <daniel.lezcano@linaro.org>#include <errno.h>#include <stdio.h>#include <stdlib.h>#include <unistd.h> #include <thermal.h>#include "thermal_nl.h" static int handle_thermal_sample(struct nl_msg *n, void *arg){	struct nlmsghdr *nlh = nlmsg_hdr(n);	struct genlmsghdr *genlhdr = genlmsg_hdr(nlh);	struct nlattr *attrs[THERMAL_GENL_ATTR_MAX + 1];	struct thermal_handler_param *thp = arg;	struct thermal_handler *th = thp->th; 	arg = thp->arg; 	genlmsg_parse(nlh, 0, attrs, THERMAL_GENL_ATTR_MAX, NULL); 	switch (genlhdr->cmd) { 	case THERMAL_GENL_SAMPLING_TEMP:		return th->ops->sampling.tz_temp(			nla_get_u32(attrs[THERMAL_GENL_ATTR_TZ_ID]),			nla_get_u32(attrs[THERMAL_GENL_ATTR_TZ_TEMP]), arg);	default:		return THERMAL_ERROR;	}} thermal_error_t thermal_sampling_handle(struct thermal_handler *th, void *arg){	struct thermal_handler_param thp = { .th = th, .arg = arg }; 	if (!th)		return THERMAL_ERROR; 	if (nl_cb_set(th->cb_sampling, NL_CB_VALID, NL_CB_CUSTOM,		      handle_thermal_sample, &thp))		return THERMAL_ERROR; 	return nl_recvmsgs(th->sk_sampling, th->cb_sampling);} int thermal_sampling_fd(struct thermal_handler *th){	if (!th)		return -1; 	return nl_socket_get_fd(th->sk_sampling);} thermal_error_t thermal_sampling_exit(struct thermal_handler *th){	if (nl_unsubscribe_thermal(th->sk_sampling, th->cb_sampling,				   THERMAL_GENL_SAMPLING_GROUP_NAME))		return THERMAL_ERROR; 	nl_thermal_disconnect(th->sk_sampling, th->cb_sampling); 	return THERMAL_SUCCESS;} thermal_error_t thermal_sampling_init(struct thermal_handler *th){	if (nl_thermal_connect(&th->sk_sampling, &th->cb_sampling))		return THERMAL_ERROR; 	if (nl_subscribe_thermal(th->sk_sampling, th->cb_sampling,				 THERMAL_GENL_SAMPLING_GROUP_NAME))		return THERMAL_ERROR; 	return THERMAL_SUCCESS;}