private static function sys_battery_power()
{
// Returns power consumption rate in mW
$rate = -1;
if (phodevi::is_linux()) {
$power_now = phodevi_linux_parser::read_sysfs_node('/sys/class/power_supply/*/power_now', 'POSITIVE_NUMERIC', array('status' => 'Discharging'));
if ($power_now != -1) {
// sysfs power_now seems to be displayed in microWatts
$rate = pts_math::set_precision($power_now / 1000, 2);
}
if ($rate == -1) {
$battery = array('/battery/BAT0/state', '/battery/BAT1/state');
$state = phodevi_linux_parser::read_acpi($battery, 'charging state');
$power = phodevi_linux_parser::read_acpi($battery, 'present rate');
$voltage = phodevi_linux_parser::read_acpi($battery, 'present voltage');
if ($state == 'discharging') {
$power_unit = substr($power, strrpos($power, ' ') + 1);
$power = substr($power, 0, strpos($power, ' '));
if ($power_unit == 'mA') {
$voltage_unit = substr($voltage, strrpos($voltage, ' ') + 1);
$voltage = substr($voltage, 0, strpos($voltage, ' '));
if ($voltage_unit == 'mV') {
$rate = round($power * $voltage / 1000);
}
} else {
if ($power_unit == 'mW') {
$rate = $power;
}
}
}
}
if ($rate == -1 && is_file('/sys/class/power_supply/BAT0/voltage_now') && is_file('/sys/class/power_supply/BAT0/current_now')) {
$voltage_now = pts_file_io::file_get_contents('/sys/class/power_supply/BAT0/voltage_now') / 1000;
$current_now = pts_file_io::file_get_contents('/sys/class/power_supply/BAT0/current_now') / 1000;
$power_now = $voltage_now * $current_now / 1000;
if ($power_now > 1) {
$rate = $power_now;
}
}
if ($rate == -1 && is_file('/sys/class/power_supply/BAT1/voltage_now') && is_file('/sys/class/power_supply/BAT1/current_now')) {
$voltage_now = pts_file_io::file_get_contents('/sys/class/power_supply/BAT1/voltage_now') / 1000;
$current_now = pts_file_io::file_get_contents('/sys/class/power_supply/BAT1/current_now') / 1000;
$power_now = $voltage_now * $current_now / 1000;
if ($power_now > 1) {
$rate = $power_now;
}
}
} else {
if (phodevi::is_macosx()) {
$amperage = abs(phodevi_osx_parser::read_osx_system_profiler('SPPowerDataType', 'Amperage'));
// in mA
$voltage = phodevi_osx_parser::read_osx_system_profiler('SPPowerDataType', 'Voltage');
// in mV
if ($amperage > 0 && $voltage > 0) {
$rate = round($amperage * $voltage / 1000);
} else {
if (pts_client::executable_in_path('ioreg')) {
$ioreg = trim(shell_exec("ioreg -l | grep LegacyBatteryInfo | cut -d '{' -f 2 | tr -d \\} | tr ',' '=' | awk -F'=' '{print (\$2*\$10/10^22)}' 2>&1"));
if (is_numeric($ioreg) && $ioreg > 0) {
$rate = $ioreg;
}
}
}
} else {
if (phodevi::is_solaris()) {
$battery = phodevi_solaris_parser::read_hal_property('/org/freedesktop/Hal/devices/pseudo/acpi_drv_0_battery0_0', 'battery.reporting.rate');
if (is_numeric($battery)) {
$rate = $battery;
}
} else {
if (phodevi::is_bsd()) {
$battery = phodevi_bsd_parser::read_acpiconf('Present rate');
if ($battery && substr($battery, -2) == 'mW') {
$rate = substr($battery, 0, strpos($battery, ' '));
}
}
}
}
}
return $rate;
}
