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