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authorBradley Taunt <bt@btxx.org>2024-01-18 12:53:45 -0500
committerBradley Taunt <bt@btxx.org>2024-01-18 12:53:45 -0500
commitd1f0177d8d525eac0e0795d67467b09b57dbe7b0 (patch)
tree61f8253913c50d0fffc3f36d035f5b27781caeef /components/temperature.c
Initial commit on cgit platformHEADmaster
Diffstat (limited to 'components/temperature.c')
-rwxr-xr-xcomponents/temperature.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/components/temperature.c b/components/temperature.c
new file mode 100755
index 0000000..7cf1394
--- /dev/null
+++ b/components/temperature.c
@@ -0,0 +1,73 @@
+/* See LICENSE file for copyright and license details. */
+#include <stddef.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+
+#if defined(__linux__)
+ #include <stdint.h>
+
+ const char *
+ temp(const char *file)
+ {
+ uintmax_t temp;
+
+ if (pscanf(file, "%ju", &temp) != 1)
+ return NULL;
+
+ return bprintf("%ju", temp / 1000);
+ }
+#elif defined(__OpenBSD__)
+ #include <stdio.h>
+ #include <sys/time.h> /* before <sys/sensors.h> for struct timeval */
+ #include <sys/sensors.h>
+ #include <sys/sysctl.h>
+
+ const char *
+ temp(const char *unused)
+ {
+ int mib[5];
+ size_t size;
+ struct sensor temp;
+
+ mib[0] = CTL_HW;
+ mib[1] = HW_SENSORS;
+ mib[2] = 0; /* cpu0 */
+ mib[3] = SENSOR_TEMP;
+ mib[4] = 0; /* temp0 */
+
+ size = sizeof(temp);
+
+ if (sysctl(mib, 5, &temp, &size, NULL, 0) < 0) {
+ warn("sysctl 'SENSOR_TEMP':");
+ return NULL;
+ }
+
+ /* kelvin to celsius */
+ return bprintf("%d", (int)((float)(temp.value-273150000) / 1E6));
+ }
+#elif defined(__FreeBSD__)
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <sys/sysctl.h>
+
+ #define ACPI_TEMP "hw.acpi.thermal.%s.temperature"
+
+ const char *
+ temp(const char *zone)
+ {
+ char buf[256];
+ int temp;
+ size_t len;
+
+ len = sizeof(temp);
+ snprintf(buf, sizeof(buf), ACPI_TEMP, zone);
+ if (sysctlbyname(buf, &temp, &len, NULL, 0) < 0
+ || !len)
+ return NULL;
+
+ /* kelvin to decimal celcius */
+ return bprintf("%d.%d", (temp - 2731) / 10, abs((temp - 2731) % 10));
+ }
+#endif