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