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#include <getopt.h>
#include "powerdebug.h"
int numregulators;
int init_regulator_ds(void)
{
DIR *regdir;
struct dirent *item;
regdir = opendir("/sys/class/regulator");
if (!regdir)
return(1);
while((item = readdir(regdir))) {
if (strncmp(item->d_name, "regulator", 9))
continue;
numregulators++;
}
closedir(regdir);
regulators_info = (struct regulator_info *)malloc(numregulators*
sizeof(struct regulator_info));
if (!regulators_info) {
fprintf(stderr, "init_regulator_ds: Not enough memory to read information for %d regulators!\n",
numregulators);
return(1);
}
return(0);
}
int read_and_print_sensor_info(int verbose)
{
DIR *dir, *subdir;
int len;
char filename[PATH_MAX], devpath[PATH_MAX];
char device[PATH_MAX];
struct dirent *item, *subitem;
/*
1. readdir /sys/class/hwmon
2. foreach subdir in above, do following
a) check if its virtual or physical (check for device)
b) for each *type* (in, temp, pwm, fan, curr, power, energy)
i> search for "_" (strrchr... check for last)
ii> check the *item* depending on type
i.e for "in" type items=min, max, input, label
for "fan" type items=min,max,input,div,target,label
for "pwm" type items=enable, mode, freq
for "temp" type items=type, max, min,input,crit,offset,label,lowest,highest,
for "curr" type items=max,min,input
for "power" type items=average,average_interval,average_min/max, average_highest/lowest, input, input_highest/lowest, accuracy,alarm, cap, cap_min/max
for "energy" type items=input
for "intrusion" type items=alarm,beep
*/
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;
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);
return 0;
}
int read_regulator_info(int verbose)
{
FILE *file = NULL;
DIR *regdir, *dir;
int len, count = 0, ret = 0;
char line[1024], filename[1024], *fptr;
struct dirent *item, *ritem;
regdir = opendir("/sys/class/regulator");
if (!regdir)
return(1);
while((item = readdir(regdir))) {
if (strlen(item->d_name) < 3)
continue;
if (strncmp(item->d_name, "regulator", 9))
continue;
len = sprintf(filename, "/sys/class/regulator/%s",item->d_name);
dir = opendir(filename);
if (!dir) {
ret = 1;
goto exit2;
}
count++;
if (count > numregulators) {
ret = 1;
goto exit1;
}
while((ritem = readdir(dir))) {
strcpy(regulators_info[count-1].name, item->d_name);
if (strlen(ritem->d_name) < 3)
continue;
sprintf(filename + len, "/%s", ritem->d_name);
// printf("Inside %s directory. Opening file %s!\n", item->d_name, ritem->d_name);
file = fopen(filename, "r");
if (!file)
continue;
memset(line, 0, 1024);
fptr = fgets(line, 1024, file);
fclose(file);
if (!fptr) {
ret = 1;
goto exit1;
}
// printf("Read file %s, data=%s, count = %d\n", filename, fptr, count);
if (!strcmp(ritem->d_name, "name"))
strcpy(regulators_info[count-1].name, fptr);
if (!strcmp(ritem->d_name, "state"))
strcpy(regulators_info[count-1].state, fptr);
if (!strcmp(ritem->d_name, "status"))
strcpy(regulators_info[count-1].status, fptr);
/* Read following _only_ if verbose option specified */
if(!verbose)
continue;
if (!strcmp(ritem->d_name, "type"))
strcpy(regulators_info[count-1].type, fptr);
if (!strcmp(ritem->d_name, "opmode"))
strcpy(regulators_info[count-1].opmode, fptr);
if (!strcmp(ritem->d_name, "microvolts"))
regulators_info[count-1].microvolts = atoi(fptr);
if (!strcmp(ritem->d_name, "microamps"))
regulators_info[count-1].microamps = atoi(fptr);
if (!strcmp(ritem->d_name, "num_users"))
regulators_info[count-1].num_users = atoi(fptr);
}
exit1:
closedir(dir);
if (ret)
break;
}
exit2:
closedir(regdir);
return ret;
}
int main(int argc, char **argv)
{
int c;
int regulators = 0, sensors = 0, verbose = 0;
/* Options:
* -r : regulator
* -s : sensors
* -v : verbose
* no option / default : all
*/
while ((c = getopt (argc, argv, "rsvh")) != -1)
switch (c)
{
case 'r':
regulators = 1;
break;
case 's':
sensors = 1;
break;
case 'v':
verbose = 1;
break;
case 'h':
usage (argv);
case '?':
fprintf (stderr, "Unknown option %c'.\n", optopt);
return 1;
default:
usage(argv);
}
/* By default print both regulator and sensor information */
if (!regulators && !sensors) {
/* What should be the default behavior ?
regulators = 1;
sensors = 1;
*/
usage(argv);
}
init_regulator_ds();
if (regulators) {
read_regulator_info(verbose);
print_regulator_info(verbose);
}
if (sensors) {
read_and_print_sensor_info(verbose);
}
return 0;
}
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