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#include "battery.h"
#include "common/io.h"
#include <machine/apmvar.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
const char* ffDetectBattery(FF_A_UNUSED FFBatteryOptions* options, FFlist* result) {
FF_AUTO_CLOSE_FD int devfd = open("/dev/apm", O_RDONLY | O_CLOEXEC);
if (devfd < 0) {
return "open(dev/apm, O_RDONLY | O_CLOEXEC) failed";
}
struct apm_power_info info = {};
if (ioctl(devfd, APM_IOC_GETPOWER, &info) < 0) {
return "ioctl(APM_IOC_GETPOWER) failed";
}
if (info.battery_state == APM_BATTERY_ABSENT) {
return NULL;
}
FFBatteryResult* battery = FF_LIST_ADD(FFBatteryResult, *result);
battery->temperature = FF_BATTERY_TEMP_UNSET;
battery->cycleCount = 0;
battery->timeRemaining = -1;
battery->capacity = info.battery_life;
ffStrbufInit(&battery->manufacturer);
ffStrbufInit(&battery->modelName);
ffStrbufInit(&battery->technology);
ffStrbufInit(&battery->serial);
ffStrbufInit(&battery->manufactureDate);
battery->status = FF_BATTERY_STATUS_NONE;
if (info.ac_state == APM_AC_ON || info.ac_state == APM_AC_BACKUP) {
battery->status |= FF_BATTERY_STATUS_AC_CONNECTED;
} else if (info.ac_state == APM_AC_OFF) {
battery->timeRemaining = (int) info.minutes_left * 60;
battery->status |= FF_BATTERY_STATUS_DISCHARGING;
}
if (info.battery_state == APM_BATT_CRITICAL || info.battery_state == APM_BATT_CHARGING || info.battery_state == APM_BATT_UNKNOWN) {
switch (info.battery_state) {
case APM_BATT_UNKNOWN:
battery->status |= FF_BATTERY_STATUS_UNKNOWN;
break;
case APM_BATT_CHARGING:
battery->status |= FF_BATTERY_STATUS_CHARGING;
break;
case APM_BATT_CRITICAL:
battery->status |= FF_BATTERY_STATUS_CRITICAL;
break;
}
}
return NULL;
}
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