battery *battery_get() {
GError * error = NULL;
const gchar *entry;
GDir * dir = g_dir_open( ACPI_PATH_SYS_POWER_SUPPY, 0, &error );
battery *b = NULL;
if ( dir == NULL )
{
g_warning( "NO ACPI/sysfs support in kernel: %s", error->message );
return NULL;
}
while ( ( entry = g_dir_read_name (dir) ) != NULL )
{
b = battery_new();
b->path = g_strdup( entry );
battery_update ( b );
if ( b->type_battery == TRUE )
break;
/* ignore non-batteries */
else {
g_free(b);
b = NULL;
}
}
g_dir_close( dir );
return b;
}
/**
* Update with incoming data and emit events if necessary.
* @param new_state Updated core sensors state
* @param cliff_data Cliff sensors readings (we include them as an extra information on cliff events)
*/
void EventManager::update(const CoreSensors::Data &new_state, const std::vector<uint16_t> &cliff_data) {
if (last_state.buttons != new_state.buttons)
{
// ------------
// Button Event
// ------------
// Note that the touch pad means at most one button can be pressed
// at a time.
ButtonEvent event;
// Check changes in each button state's; even if this block of code
// supports it, two buttons cannot be pressed simultaneously
if ((new_state.buttons ^ last_state.buttons) & CoreSensors::Flags::Button0) {
event.button = ButtonEvent::Button0;
if (new_state.buttons & CoreSensors::Flags::Button0) {
event.state = ButtonEvent::Pressed;
} else {
event.state = ButtonEvent::Released;
}
sig_button_event.emit(event);
}
if ((new_state.buttons ^ last_state.buttons) & CoreSensors::Flags::Button1) {
event.button = ButtonEvent::Button1;
if (new_state.buttons & CoreSensors::Flags::Button1) {
event.state = ButtonEvent::Pressed;
} else {
event.state = ButtonEvent::Released;
}
sig_button_event.emit(event);
}
if ((new_state.buttons ^ last_state.buttons) & CoreSensors::Flags::Button2) {
event.button = ButtonEvent::Button2;
if (new_state.buttons & CoreSensors::Flags::Button2) {
event.state = ButtonEvent::Pressed;
} else {
event.state = ButtonEvent::Released;
}
sig_button_event.emit(event);
}
}
// ------------
// Bumper Event
// ------------
if (last_state.bumper != new_state.bumper)
{
BumperEvent event;
// Check changes in each bumper state's and raise an event if so
if ((new_state.bumper ^ last_state.bumper) & CoreSensors::Flags::LeftBumper) {
event.bumper = BumperEvent::Left;
if (new_state.bumper & CoreSensors::Flags::LeftBumper) {
event.state = BumperEvent::Pressed;
} else {
event.state = BumperEvent::Released;
}
sig_bumper_event.emit(event);
}
if ((new_state.bumper ^ last_state.bumper) & CoreSensors::Flags::CenterBumper) {
event.bumper = BumperEvent::Center;
if (new_state.bumper & CoreSensors::Flags::CenterBumper) {
event.state = BumperEvent::Pressed;
} else {
event.state = BumperEvent::Released;
}
sig_bumper_event.emit(event);
}
if ((new_state.bumper ^ last_state.bumper) & CoreSensors::Flags::RightBumper) {
event.bumper = BumperEvent::Right;
if (new_state.bumper & CoreSensors::Flags::RightBumper) {
event.state = BumperEvent::Pressed;
} else {
event.state = BumperEvent::Released;
}
sig_bumper_event.emit(event);
}
}
// ------------
// Cliff Event
// ------------
if (last_state.cliff != new_state.cliff)
{
CliffEvent event;
// Check changes in each cliff sensor state's and raise an event if so
if ((new_state.cliff ^ last_state.cliff) & CoreSensors::Flags::LeftCliff) {
event.sensor = CliffEvent::Left;
if (new_state.cliff & CoreSensors::Flags::LeftCliff) {
event.state = CliffEvent::Cliff;
} else {
event.state = CliffEvent::Floor;
}
event.bottom = cliff_data[event.sensor];
sig_cliff_event.emit(event);
}
if ((new_state.cliff ^ last_state.cliff) & CoreSensors::Flags::CenterCliff) {
event.sensor = CliffEvent::Center;
if (new_state.cliff & CoreSensors::Flags::CenterCliff) {
event.state = CliffEvent::Cliff;
} else {
event.state = CliffEvent::Floor;
}
event.bottom = cliff_data[event.sensor];
sig_cliff_event.emit(event);
}
if ((new_state.cliff ^ last_state.cliff) & CoreSensors::Flags::RightCliff) {
event.sensor = CliffEvent::Right;
if (new_state.cliff & CoreSensors::Flags::RightCliff) {
event.state = CliffEvent::Cliff;
} else {
event.state = CliffEvent::Floor;
}
event.bottom = cliff_data[event.sensor];
sig_cliff_event.emit(event);
}
}
// ------------
// Wheel Drop Event
// ------------
if (last_state.wheel_drop != new_state.wheel_drop)
{
WheelEvent event;
// Check changes in each wheel_drop sensor state's and raise an event if so
if ((new_state.wheel_drop ^ last_state.wheel_drop) & CoreSensors::Flags::LeftWheel) {
event.wheel = WheelEvent::Left;
if (new_state.wheel_drop & CoreSensors::Flags::LeftWheel) {
event.state = WheelEvent::Dropped;
} else {
event.state = WheelEvent::Raised;
}
sig_wheel_event.emit(event);
}
if ((new_state.wheel_drop ^ last_state.wheel_drop) & CoreSensors::Flags::RightWheel) {
event.wheel = WheelEvent::Right;
if (new_state.wheel_drop & CoreSensors::Flags::RightWheel) {
event.state = WheelEvent::Dropped;
} else {
event.state = WheelEvent::Raised;
}
sig_wheel_event.emit(event);
}
}
// ------------
// Power System Event
// ------------
if (last_state.charger != new_state.charger)
{
Battery battery_new(new_state.battery, new_state.charger);
Battery battery_last(last_state.battery, last_state.charger);
if (battery_last.charging_state != battery_new.charging_state)
{
PowerEvent event;
switch (battery_new.charging_state)
{
case Battery::Discharging:
event.event = PowerEvent::Unplugged;
break;
case Battery::Charged:
event.event = PowerEvent::ChargeCompleted;
break;
case Battery::Charging:
if (battery_new.charging_source == Battery::Adapter)
event.event = PowerEvent::PluggedToAdapter;
else
event.event = PowerEvent::PluggedToDockbase;
break;
}
sig_power_event.emit(event);
}
}
if (last_state.battery > new_state.battery)
{
Battery battery_new(new_state.battery, new_state.charger);
Battery battery_last(last_state.battery, last_state.charger);
if (battery_last.level() != battery_new.level())
{
PowerEvent event;
switch (battery_new.level())
{
case Battery::Low:
event.event = PowerEvent::BatteryLow;
break;
case Battery::Dangerous:
event.event = PowerEvent::BatteryCritical;
break;
default:
break;
}
sig_power_event.emit(event);
}
}
last_state = new_state;
}
battery *battery_get(int battery_number) {
GError * error = NULL;
const gchar *entry;
gchar *batt_name = NULL;
gchar *batt_path = NULL;
GDir * dir;
battery *b = NULL;
/* Try the expected path in sysfs first */
batt_name = g_strdup_printf(ACPI_BATTERY_DEVICE_NAME "%d", battery_number);
batt_path = g_strdup_printf(ACPI_PATH_SYS_POWER_SUPPLY "/%s", batt_name);
if (g_file_test(batt_path, G_FILE_TEST_IS_DIR) == TRUE) {
b = battery_new();
b->path = g_strdup( batt_name);
battery_update ( b );
if (!b->type_battery) {
g_warning( "Not a battery: %s", batt_path );
battery_free(b);
b = NULL;
}
}
g_free(batt_name);
g_free(batt_path);
if (b != NULL)
return b;
/*
* We didn't find the expected path in sysfs.
* Walk the dir and return any battery.
*/
dir = g_dir_open( ACPI_PATH_SYS_POWER_SUPPLY, 0, &error );
if ( dir == NULL )
{
g_warning( "NO ACPI/sysfs support in kernel: %s", error->message );
g_error_free(error);
return NULL;
}
while ( ( entry = g_dir_read_name (dir) ) != NULL )
{
b = battery_new();
b->path = g_strdup( entry );
battery_update ( b );
/* We're looking for a battery with the selected ID */
if (b->type_battery == TRUE) {
break;
}
battery_free(b);
b = NULL;
}
if (b != NULL)
g_warning( "Battery entry " ACPI_BATTERY_DEVICE_NAME "%d not found, using %s",
battery_number, b->path);
// FIXME: update config?
else
g_warning( "Battery %d not found", battery_number );
g_dir_close( dir );
return b;
}