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