C++ (Cpp) st_magn_allocate_ring示例

示例#1

文件： st_magn_core.c 项目： BORETS24/common.git-android-4.4

int st_magn_common_probe(struct iio_dev *indio_dev)
{
	struct st_sensor_data *mdata = iio_priv(indio_dev);
	int irq = mdata->get_irq_data_ready(indio_dev);
	int err;

	indio_dev->modes = INDIO_DIRECT_MODE;
	indio_dev->info = &magn_info;
	mutex_init(&mdata->tb.buf_lock);

	st_sensors_power_enable(indio_dev);

	err = st_sensors_check_device_support(indio_dev,
					ARRAY_SIZE(st_magn_sensors_settings),
					st_magn_sensors_settings);
	if (err < 0)
		return err;

	mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS;
	mdata->multiread_bit = mdata->sensor_settings->multi_read_bit;
	indio_dev->channels = mdata->sensor_settings->ch;
	indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;

	mdata->current_fullscale = (struct st_sensor_fullscale_avl *)
					&mdata->sensor_settings->fs.fs_avl[0];
	mdata->odr = mdata->sensor_settings->odr.odr_avl[0].hz;

	err = st_sensors_init_sensor(indio_dev, NULL);
	if (err < 0)
		return err;

	err = st_magn_allocate_ring(indio_dev);
	if (err < 0)
		return err;

	if (irq > 0) {
		err = st_sensors_allocate_trigger(indio_dev,
						ST_MAGN_TRIGGER_OPS);
		if (err < 0)
			goto st_magn_probe_trigger_error;
	}

	err = iio_device_register(indio_dev);
	if (err)
		goto st_magn_device_register_error;

	dev_info(&indio_dev->dev, "registered magnetometer %s\n",
		 indio_dev->name);

	return 0;

st_magn_device_register_error:
	if (irq > 0)
		st_sensors_deallocate_trigger(indio_dev);
st_magn_probe_trigger_error:
	st_magn_deallocate_ring(indio_dev);

	return err;
}

示例#2

文件： st_magn_core.c 项目： SynerconTechnologies/FLA-Kernel

int st_magn_common_probe(struct iio_dev *indio_dev)
{
	int err;
	struct st_sensor_data *mdata = iio_priv(indio_dev);

	indio_dev->modes = INDIO_DIRECT_MODE;
	indio_dev->info = &magn_info;

	err = st_sensors_check_device_support(indio_dev,
				ARRAY_SIZE(st_magn_sensors), st_magn_sensors);
	if (err < 0)
		goto st_magn_common_probe_error;

	mdata->multiread_bit = mdata->sensor->multi_read_bit;
	indio_dev->channels = mdata->sensor->ch;
	indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;

	mdata->current_fullscale = (struct st_sensor_fullscale_avl *)
						&mdata->sensor->fs.fs_avl[0];
	mdata->odr = mdata->sensor->odr.odr_avl[0].hz;

	err = st_sensors_init_sensor(indio_dev);
	if (err < 0)
		goto st_magn_common_probe_error;

	if (mdata->get_irq_data_ready(indio_dev) > 0) {
		err = st_magn_allocate_ring(indio_dev);
		if (err < 0)
			goto st_magn_common_probe_error;
		err = st_sensors_allocate_trigger(indio_dev, NULL);
		if (err < 0)
			goto st_magn_probe_trigger_error;
	}

	err = iio_device_register(indio_dev);
	if (err)
		goto st_magn_device_register_error;

	return err;

st_magn_device_register_error:
	if (mdata->get_irq_data_ready(indio_dev) > 0)
		st_sensors_deallocate_trigger(indio_dev);
st_magn_probe_trigger_error:
	if (mdata->get_irq_data_ready(indio_dev) > 0)
		st_magn_deallocate_ring(indio_dev);
st_magn_common_probe_error:
	return err;
}