| 1 | |
| 2 | |
| 3 | #include <errno.h>
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| 4 | #include <stdio.h>
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| 5 | #include <stdlib.h>
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| 6 | #include <unistd.h>
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| 7 |
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| 8 | #include <thermal.h>
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| 9 | #include "thermal_nl.h"
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| 10 |
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| 11 | static int handle_thermal_sample(struct nl_msg *n, void *arg)
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| 12 | {
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| 13 | struct nlmsghdr *nlh = nlmsg_hdr(n);
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| 14 | struct genlmsghdr *genlhdr = genlmsg_hdr(nlh);
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| 15 | struct nlattr *attrs[THERMAL_GENL_ATTR_MAX + 1];
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| 16 | struct thermal_handler_param *thp = arg;
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| 17 | struct thermal_handler *th = thp->th;
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| 18 |
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| 19 | arg = thp->arg;
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| 20 |
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| 21 | genlmsg_parse(nlh, 0, attrs, THERMAL_GENL_ATTR_MAX, NULL);
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| 22 |
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| 23 | switch (genlhdr->cmd) {
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| 24 |
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| 25 | case THERMAL_GENL_SAMPLING_TEMP:
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| 26 | return th->ops->sampling.tz_temp(
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| 27 | nla_get_u32(attrs[THERMAL_GENL_ATTR_TZ_ID]),
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| 28 | nla_get_u32(attrs[THERMAL_GENL_ATTR_TZ_TEMP]), arg);
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| 29 | default:
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| 30 | return THERMAL_ERROR;
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| 31 | }
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| 32 | }
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| 33 |
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| 34 | thermal_error_t thermal_sampling_handle(struct thermal_handler *th, void *arg)
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| 35 | {
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| 36 | struct thermal_handler_param thp = { .th = th, .arg = arg };
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| 37 |
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| 38 | if (!th)
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| 39 | return THERMAL_ERROR;
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| 40 |
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| 41 | if (nl_cb_set(th->cb_sampling, NL_CB_VALID, NL_CB_CUSTOM,
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| 42 | handle_thermal_sample, &thp))
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| 43 | return THERMAL_ERROR;
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| 44 |
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| 45 | return nl_recvmsgs(th->sk_sampling, th->cb_sampling);
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| 46 | }
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| 47 |
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| 48 | int thermal_sampling_fd(struct thermal_handler *th)
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| 49 | {
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| 50 | if (!th)
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| 51 | return -1;
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| 52 |
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| 53 | return nl_socket_get_fd(th->sk_sampling);
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| 54 | }
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| 55 |
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| 56 | thermal_error_t thermal_sampling_exit(struct thermal_handler *th)
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| 57 | {
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| 58 | if (nl_unsubscribe_thermal(th->sk_sampling, th->cb_sampling,
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| 59 | THERMAL_GENL_SAMPLING_GROUP_NAME))
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| 60 | return THERMAL_ERROR;
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| 61 |
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| 62 | nl_thermal_disconnect(th->sk_sampling, th->cb_sampling);
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| 63 |
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| 64 | return THERMAL_SUCCESS;
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| 65 | }
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| 66 |
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| 67 | thermal_error_t thermal_sampling_init(struct thermal_handler *th)
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| 68 | {
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| 69 | if (nl_thermal_connect(&th->sk_sampling, &th->cb_sampling))
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| 70 | return THERMAL_ERROR;
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| 71 |
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| 72 | if (nl_subscribe_thermal(th->sk_sampling, th->cb_sampling,
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| 73 | THERMAL_GENL_SAMPLING_GROUP_NAME))
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| 74 | return THERMAL_ERROR;
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| 75 |
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| 76 | return THERMAL_SUCCESS;
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| 77 | }
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