1 files changed, 74 insertions, 0 deletions
diff --git a/src/osmo-bts-lc15/misc/lc15bts_temp.c b/src/osmo-bts-lc15/misc/lc15bts_temp.c
new file mode 100644
index 00000000..f69b9bb7
--- /dev/null
+++ b/src/osmo-bts-lc15/misc/lc15bts_temp.c
@@ -0,0 +1,74 @@
+/* Copyright (C) 2015 by Yves Godin <support@nuranwireless.com>
+ * 
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <stdint.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+
+#include <osmocom/core/utils.h>
+
+#include "lc15bts_temp.h"
+
+static const char *temp_devs[_NUM_TEMP_SENSORS] = {
+	[LC15BTS_TEMP_SUPPLY]	 	= "/var/lc15/temp/main-supply/temp",
+	[LC15BTS_TEMP_SOC]	 	= "/var/lc15/temp/cpu/temp",
+	[LC15BTS_TEMP_FPGA]	 	= "/var/lc15/temp/fpga/temp",
+	[LC15BTS_TEMP_RMSDET] 	= "/var/lc15/temp/rmsdet/temp",
+	[LC15BTS_TEMP_OCXO]		= "/var/lc15/temp/ocxo/temp",
+	[LC15BTS_TEMP_TX0]		= "/var/lc15/temp/tx0/temp",
+	[LC15BTS_TEMP_TX1]		= "/var/lc15/temp/tx1/temp",
+	[LC15BTS_TEMP_PA0]		= "/var/lc15/temp/pa0/temp",
+	[LC15BTS_TEMP_PA1]		= "/var/lc15/temp/pa1/temp",
+};
+
+int lc15bts_temp_get(enum lc15bts_temp_sensor sensor, int *temp)
+{
+	char buf[PATH_MAX];
+	char tempstr[8];
+	int fd, rc;
+
+	if (sensor < 0 || sensor >= _NUM_TEMP_SENSORS)
+		return -EINVAL;
+
+	snprintf(buf, sizeof(buf)-1, "%s", temp_devs[sensor]);
+	buf[sizeof(buf)-1] = '\0';
+
+	fd = open(buf, O_RDONLY);
+	if (fd < 0)
+		return fd;
+
+	rc = read(fd, tempstr, sizeof(tempstr));
+	tempstr[sizeof(tempstr)-1] = '\0';
+	if (rc < 0) {
+		close(fd);
+		return rc;
+	}
+	if (rc == 0) {
+		close(fd);
+		return -EIO;
+	}
+	close(fd);
+	*temp = atoi(tempstr);
+	return 0;
+}
+