C++ (Cpp) hid_sensor_get_usage_index Examples

Example #1

File: hid-sensor-trigger.c Project: 168519/linux

static int _hid_sensor_power_state(struct hid_sensor_common *st, bool state)
{
	int state_val;
	int report_val;
	s32 poll_value = 0;

	if (state) {
		if (sensor_hub_device_open(st->hsdev))
			return -EIO;

		atomic_inc(&st->data_ready);

		state_val = hid_sensor_get_usage_index(st->hsdev,
			st->power_state.report_id,
			st->power_state.index,
			HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM);
		report_val = hid_sensor_get_usage_index(st->hsdev,
			st->report_state.report_id,
			st->report_state.index,
			HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM);

		poll_value = hid_sensor_read_poll_value(st);
	} else {
		if (!atomic_dec_and_test(&st->data_ready))
			return 0;
		sensor_hub_device_close(st->hsdev);
		state_val = hid_sensor_get_usage_index(st->hsdev,
			st->power_state.report_id,
			st->power_state.index,
			HID_USAGE_SENSOR_PROP_POWER_STATE_D4_POWER_OFF_ENUM);
		report_val = hid_sensor_get_usage_index(st->hsdev,
			st->report_state.report_id,
			st->report_state.index,
			HID_USAGE_SENSOR_PROP_REPORTING_STATE_NO_EVENTS_ENUM);
	}

	if (state_val >= 0) {
		state_val += st->power_state.logical_minimum;
		sensor_hub_set_feature(st->hsdev, st->power_state.report_id,
					st->power_state.index,
					(s32)state_val);
	}

	if (report_val >= 0) {
		report_val += st->report_state.logical_minimum;
		sensor_hub_set_feature(st->hsdev, st->report_state.report_id,
					st->report_state.index,
					(s32)report_val);
	}

	sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
					st->power_state.index,
					&state_val);
	if (state && poll_value)
		msleep_interruptible(poll_value * 2);

	return 0;
}

Example #2

File: hid-sensor-trigger.c Project: martinbrook/kernel_intel-uefi

static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
						bool state)
{
	struct hid_sensor_common *st = iio_trigger_get_drvdata(trig);
	s32 power_state_val;
	s32 report_state_val;

	st->data_ready = state;
	if (state) {
		power_state_val = hid_sensor_get_usage_index(st->hsdev,
			st->power_state.report_id,
			st->power_state.index,
			HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM);
		report_state_val = hid_sensor_get_usage_index(st->hsdev,
			st->report_state.report_id,
			st->report_state.index,
			HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM);
	} else {
		power_state_val = hid_sensor_get_usage_index(st->hsdev,
			st->power_state.report_id,
			st->power_state.index,
			HID_USAGE_SENSOR_PROP_POWER_STATE_D1_LOW_POWER_ENUM);
		report_state_val = hid_sensor_get_usage_index(st->hsdev,
			st->report_state.report_id,
			st->report_state.index,
			HID_USAGE_SENSOR_PROP_REPORTING_STATE_NO_EVENTS_ENUM);
	}
	power_state_val += st->power_state.logical_minimum;
	report_state_val += st->report_state.logical_minimum;
	if (power_state_val >= 0)
		sensor_hub_set_feature(st->hsdev, st->power_state.report_id,
						st->power_state.index,
						power_state_val);
	if (report_state_val >= 0)
		sensor_hub_set_feature(st->hsdev, st->report_state.report_id,
						st->report_state.index,
						report_state_val);

	/* Some hubs require this read as a 'sync' point. */
	sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
					st->power_state.index,
					&power_state_val);

	sensor_hub_set_feature(st->hsdev, st->conn_type.report_id,
					st->conn_type.index,
					hid_sensor_conn_type);

	return 0;
}