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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /tools/lib/thermal/sampling.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/lib/thermal/sampling.c')
-rw-r--r--tools/lib/thermal/sampling.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/tools/lib/thermal/sampling.c b/tools/lib/thermal/sampling.c
new file mode 100644
index 000000000..70577423a
--- /dev/null
+++ b/tools/lib/thermal/sampling.c
@@ -0,0 +1,75 @@
+// 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;
+
+ 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;
+}