114 lines
2.2 KiB
C
114 lines
2.2 KiB
C
/* Misc HW routines for Sysmocom BTS */
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/* (C) 2012 by Harald Welte <laforge@gnumonks.org>
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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 <limits.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <osmocom/core/utils.h>
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#include "hw_misc.h"
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static const struct value_string sysmobts_led_names[] = {
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{ LED_RF_ACTIVE, "activity_led" },
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{ LED_ONLINE, "online_led" },
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{ 0, NULL }
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};
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int sysmobts_led_set(enum sysmobts_led nr, int on)
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{
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char tmp[PATH_MAX+1];
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const char *filename;
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int fd;
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uint8_t byte;
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if (on)
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byte = '1';
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else
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byte = '0';
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filename = get_value_string(sysmobts_led_names, nr);
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if (!filename)
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return -EINVAL;
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snprintf(tmp, sizeof(tmp)-1, "/sys/class/leds/%s/brightness", filename);
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tmp[sizeof(tmp)-1] = '\0';
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fd = open(tmp, O_WRONLY);
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if (fd < 0)
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return -ENODEV;
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write(fd, &byte, 1);
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close(fd);
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return 0;
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}
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#if 0
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#define HWMON_PREFIX "/sys/class/hwmon/hwmon0/device"
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static FILE *temperature_f[NUM_TEMP];
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int sysmobts_temp_init()
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{
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char tmp[PATH_MAX+1];
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FILE *in;
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int rc = 0;
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for (i = 0; i < NUM_TEMP; i++) {
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snprintf(tmp, sizeof(tmp)-1, HWMON_PREFIX "/temp%u_input", i+1),
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tmp[sizeof(tmp)-1] = '\0';
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temperature_f[i] = fopen(tmp, "r");
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if (!temperature_f[i])
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rc = -ENODEV;
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}
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return 0;
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}
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int sysmobts_temp_get(uint8_t num)
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{
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if (num >= NUM_TEMP)
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return -EINVAL;
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if (!temperature_f[num])
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return -ENODEV;
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in = fopen(tmp, "r");
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if (!in)
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return -ENODEV;
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fclose(tmp);
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return 0;
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}
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#endif
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