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/*
htop - openbsd/Battery.c
(C) 2015 Hisham H. Muhammad
(C) 2015 Michael McConville
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "BatteryMeter.h"
#include <sys/sysctl.h>
#include <sys/sensors.h>
#include <errno.h>
static bool findDevice(const char* name, int* mib, struct sensordev* snsrdev, size_t* sdlen) {
for (int devn = 0;; devn++) {
mib[2] = devn;
if (sysctl(mib, 3, snsrdev, sdlen, NULL, 0) == -1) {
if (errno == ENXIO)
continue;
if (errno == ENOENT)
return false;
}
if (strcmp(name, snsrdev->xname) == 0) {
return true;
}
}
}
void Battery_getData(double* level, ACPresence* isOnAC) {
static int mib[] = {CTL_HW, HW_SENSORS, 0, 0, 0};
struct sensor s;
size_t slen = sizeof(struct sensor);
struct sensordev snsrdev;
size_t sdlen = sizeof(struct sensordev);
bool found = findDevice("acpibat0", mib, &snsrdev, &sdlen);
*level = -1;
if (found) {
/* last full capacity */
mib[3] = 7;
mib[4] = 0;
double last_full_capacity = 0;
if (sysctl(mib, 5, &s, &slen, NULL, 0) != -1) {
last_full_capacity = s.value;
}
if (last_full_capacity > 0) {
/* remaining capacity */
mib[3] = 7;
mib[4] = 3;
if (sysctl(mib, 5, &s, &slen, NULL, 0) != -1) {
double charge = s.value;
*level = 100*(charge / last_full_capacity);
if (charge >= last_full_capacity) {
*level = 100;
}
}
}
}
found = findDevice("acpiac0", mib, &snsrdev, &sdlen);
*isOnAC = AC_ERROR;
if (found) {
mib[3] = 9;
mib[4] = 0;
if (sysctl(mib, 5, &s, &slen, NULL, 0) != -1) {
*isOnAC = s.value;
}
}
}
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