/* Whilst this makes a lot of calls to iio_sw_ring functions - it is to device
* specific to be rolled into the core.
*/
static irqreturn_t adis16201_trigger_handler(int irq, void *p)
{
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->private_data;
struct adis16201_state *st = iio_priv(indio_dev);
struct iio_ring_buffer *ring = indio_dev->ring;
int i = 0;
s16 *data;
size_t datasize = ring->access->get_bytes_per_datum(ring);
data = kmalloc(datasize, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
}
if (ring->scan_count)
if (adis16201_read_ring_data(indio_dev, st->rx) >= 0)
for (; i < ring->scan_count; i++)
data[i] = be16_to_cpup(
(__be16 *)&(st->rx[i*2]));
/* Guaranteed to be aligned with 8 byte boundary */
if (ring->scan_timestamp)
*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
ring->access->store_to(ring, (u8 *)data, pf->timestamp);
iio_trigger_notify_done(indio_dev->trig);
kfree(data);
return IRQ_HANDLED;
}
static irqreturn_t adis16201_trigger_handler(int irq, void *p)
{
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct adis16201_state *st = iio_priv(indio_dev);
struct iio_buffer *ring = indio_dev->buffer;
int i = 0;
s16 *data;
size_t datasize = ring->access->get_bytes_per_datum(ring);
data = kmalloc(datasize, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
}
if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)
&& adis16201_read_ring_data(indio_dev, st->rx) >= 0)
for (; i < bitmap_weight(indio_dev->active_scan_mask,
indio_dev->masklength); i++)
data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2]));
if (ring->scan_timestamp)
*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
ring->access->store_to(ring, (u8 *)data, pf->timestamp);
iio_trigger_notify_done(indio_dev->trig);
kfree(data);
return IRQ_HANDLED;
}