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-rw-r--r--zephyr/program/skyrim/winterhold/src/thermal.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/zephyr/program/skyrim/winterhold/src/thermal.c b/zephyr/program/skyrim/winterhold/src/thermal.c
new file mode 100644
index 0000000000..2c9432be09
--- /dev/null
+++ b/zephyr/program/skyrim/winterhold/src/thermal.c
@@ -0,0 +1,32 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "hooks.h"
+#include "host_command.h"
+#include "temp_sensor/temp_sensor.h"
+
+#define CPRINTS(format, args...) cprints(CC_THERMAL, format, ##args)
+#define CPRINTF(format, args...) cprintf(CC_THERMAL, format, ##args)
+
+#define TEMP_AMB TEMP_SENSOR_ID(DT_NODELABEL(temp_sensor_amb))
+
+static int last_amb_temp = -1;
+
+/* Set SCI event to host for temperature change */
+static void detect_temp_change(void)
+{
+ int t, rv;
+
+ rv = temp_sensor_read(TEMP_AMB, &t);
+ if (rv == EC_SUCCESS) {
+ if (last_amb_temp != t) {
+ last_amb_temp = t;
+ host_set_single_event(EC_HOST_EVENT_THERMAL_THRESHOLD);
+ }
+ } else if (rv == EC_ERROR_INVAL) {
+ CPRINTS("Temp sensor: Invalid id");
+ }
+}
+DECLARE_HOOK(HOOK_SECOND, detect_temp_change, HOOK_PRIO_TEMP_SENSOR_DONE);