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/*******************************************************************************
* Copyright (C) 2010, Linaro Limited.
*
* This file is part of PowerDebug.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Amit Arora <amit.arora@linaro.org> (IBM Corporation)
* - initial API and implementation
*******************************************************************************/
#include "powerdebug.h"
#include "sensor.h"
char *get_num(char *fname, char *sensor)
{
char tmpstr[NAME_MAX];
char *str;
strcpy(tmpstr, (fname+strlen(sensor)));
str = strrchr(tmpstr, '_');
str[0] = '\0';
str = strdup(tmpstr);
return str;
}
void get_sensor_info(char *path, char *fname, char *sensor, int verbose)
{
FILE *filep;
char filename[PATH_MAX];
char **items = NULL, **suffix = NULL;
char *item, result[NAME_MAX], *num;
int ret, count = 0;
(void)verbose; // get rid of warning
sprintf(filename, "%s/%s", path, fname);
if (!strcmp(sensor, "in")) {
items = (char **)items_in;
suffix = (char **)suffix_in;
}
if (!strcmp(sensor, "temp")) {
items = (char **)items_temp;
suffix = (char **)suffix_temp;
}
if (!strcmp(sensor, "fan")) {
items = (char **)items_fan;
suffix = (char **)suffix_fan;
}
if (!strcmp(sensor, "pwm")) {
items = (char **)items_pwm;
suffix = (char **)suffix_pwm;
}
if (!items || !suffix)
return;
item = strrchr(fname, '_');
if (!item)
return;
if (item)
item++;
if (item > (fname + strlen(fname)))
return;
num = get_num(fname, sensor);
filep = fopen(filename, "r");
if (!filep)
goto exit;
ret = fscanf(filep, "%s", result);
fclose(filep);
if (ret != 1)
goto exit;
while (strcmp(items[count], "")) {
if (!strcmp(items[count], item))
printf("\'temp\' %s sensor %s\t\t%d%s\n",
num, items[count], atoi(result)/1000,
suffix[count]);
count++;
}
exit:
free(num);
return;
}
int read_and_print_sensor_info(int verbose)
{
DIR *dir, *subdir;
int len, found = 0;
char filename[PATH_MAX], devpath[PATH_MAX];
char device[PATH_MAX];
struct dirent *item, *subitem;
printf("\nSensor Information:\n");
printf("******************\n");
sprintf(filename, "%s", "/sys/class/hwmon");
dir = opendir(filename);
if (!dir)
return errno;
while ((item = readdir(dir))) {
if (item->d_name[0] == '.') /* skip the hidden files */
continue;
found = 1;
sprintf(filename, "/sys/class/hwmon/%s", item->d_name);
sprintf(devpath, "%s/device", filename);
len = readlink(devpath, device, PATH_MAX - 1);
if (len < 0)
strcpy(devpath, filename);
else
device[len] = '\0';
subdir = opendir(devpath);
printf("\nSensor Information for %s :\n", item->d_name);
fflush(stdin);
while ((subitem = readdir(subdir))) {
if (subitem->d_name[0] == '.') /* skip hidden files */
continue;
if (!strncmp(subitem->d_name, "in", 2))
get_sensor_info(devpath, subitem->d_name, "in",
verbose);
else if (!strncmp(subitem->d_name, "temp", 4))
get_sensor_info(devpath, subitem->d_name,
"temp", verbose);
else if (!strncmp(subitem->d_name, "fan", 4))
get_sensor_info(devpath, subitem->d_name,
"fan", verbose);
else if (!strncmp(subitem->d_name, "pwm", 4))
get_sensor_info(devpath, subitem->d_name,
"pwm", verbose);
}
closedir(subdir);
}
closedir(dir);
if (!found && verbose) {
printf("Could not find sensor information!");
printf(" Looks like /sys/class/hwmon is empty.\n");
}
printf("\n");
return 0;
}
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