C++ (Cpp) ad7606_scan_direct Examples

Example #1

File: ad7606_core.c Project: AnadoluPanteri/kernel-plus-harmattan

static int ad7606_read_raw(struct iio_dev *indio_dev,
			   struct iio_chan_spec const *chan,
			   int *val,
			   int *val2,
			   long m)
{
	int ret;
	struct ad7606_state *st = iio_priv(indio_dev);

	switch (m) {
	case IIO_CHAN_INFO_RAW:
		mutex_lock(&indio_dev->mlock);
		if (iio_buffer_enabled(indio_dev))
			ret = -EBUSY;
		else
			ret = ad7606_scan_direct(indio_dev, chan->address);
		mutex_unlock(&indio_dev->mlock);

		if (ret < 0)
			return ret;
		*val = (short) ret;
		return IIO_VAL_INT;
	case IIO_CHAN_INFO_SCALE:
		*val = st->range * 2;
		*val2 = st->chip_info->channels[0].scan_type.realbits;
		return IIO_VAL_FRACTIONAL_LOG2;
	}
	return -EINVAL;
}

Example #2

File: ad7606_core.c Project: DirtyDroidX/android_kernel_htc_m8ul

static int ad7606_read_raw(struct iio_dev *indio_dev,
			   struct iio_chan_spec const *chan,
			   int *val,
			   int *val2,
			   long m)
{
	int ret;
	struct ad7606_state *st = iio_priv(indio_dev);
	unsigned int scale_uv;

	switch (m) {
	case 0:
		mutex_lock(&indio_dev->mlock);
		if (iio_buffer_enabled(indio_dev))
			ret = -EBUSY;
		else
			ret = ad7606_scan_direct(indio_dev, chan->address);
		mutex_unlock(&indio_dev->mlock);

		if (ret < 0)
			return ret;
		*val = (short) ret;
		return IIO_VAL_INT;
	case IIO_CHAN_INFO_SCALE:
		scale_uv = (st->range * 1000 * 2)
			>> st->chip_info->channels[0].scan_type.realbits;
		*val =  scale_uv / 1000;
		*val2 = (scale_uv % 1000) * 1000;
		return IIO_VAL_INT_PLUS_MICRO;
	}
	return -EINVAL;
}

Example #3

File: ad7606_core.c Project: 513855417/linux

static int ad7606_read_raw(struct iio_dev *indio_dev,
			   struct iio_chan_spec const *chan,
			   int *val,
			   int *val2,
			   long m)
{
	int ret;
	struct ad7606_state *st = iio_priv(indio_dev);

	switch (m) {
	case IIO_CHAN_INFO_RAW:
		ret = iio_device_claim_direct_mode(indio_dev);
		if (ret)
			return ret;

		ret = ad7606_scan_direct(indio_dev, chan->address);
		iio_device_release_direct_mode(indio_dev);

		if (ret < 0)
			return ret;
		*val = (short)ret;
		return IIO_VAL_INT;
	case IIO_CHAN_INFO_SCALE:
		*val = st->range * 2;
		*val2 = st->chip_info->channels[0].scan_type.realbits;
		return IIO_VAL_FRACTIONAL_LOG2;
	}
	return -EINVAL;
}

Example #4

File: ad7606_core.c Project: ARMP/android_kernel_lge_x3

static ssize_t ad7606_scan(struct device *dev,
			    struct device_attribute *attr,
			    char *buf)
{
	struct iio_dev *dev_info = dev_get_drvdata(dev);
	struct ad7606_state *st = dev_info->dev_data;
	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
	int ret;

	mutex_lock(&dev_info->mlock);
	if (iio_ring_enabled(dev_info))
		ret = ad7606_scan_from_ring(st, this_attr->address);
	else
		ret = ad7606_scan_direct(st, this_attr->address);
	mutex_unlock(&dev_info->mlock);

	if (ret < 0)
		return ret;

	return sprintf(buf, "%d\n", (short) ret);
}