staging: iio: sca3000 convert byte order of ring buffer data
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -53,7 +53,8 @@ static int sca3000_rip_hw_rb(struct iio_ring_buffer *r,
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struct iio_dev *indio_dev = hw_ring->private;
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struct sca3000_state *st = indio_dev->dev_data;
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u8 *rx;
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int ret, num_available, num_read = 0;
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s16 *samples;
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int ret, i, num_available, num_read = 0;
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int bytes_per_sample = 1;
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if (st->bpse == 11)
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@ -87,6 +88,17 @@ static int sca3000_rip_hw_rb(struct iio_ring_buffer *r,
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ret = sca3000_read_data(st,
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SCA3000_REG_ADDR_RING_OUT,
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data, num_read);
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/* Convert byte order and shift to default resolution */
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if (st->bpse == 11) {
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samples = (s16*)(*data+1);
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for (i = 0; i < (num_read/2); i++) {
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samples[i] = be16_to_cpup(
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(__be16 *)&(samples[i]));
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samples[i] >>= 3;
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}
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}
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error_ret:
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mutex_unlock(&st->lock);
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