diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad7476_ring.c')
-rw-r--r-- | drivers/staging/iio/adc/ad7476_ring.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/staging/iio/adc/ad7476_ring.c b/drivers/staging/iio/adc/ad7476_ring.c index ec1fa14..1d696ef 100644 --- a/drivers/staging/iio/adc/ad7476_ring.c +++ b/drivers/staging/iio/adc/ad7476_ring.c @@ -28,12 +28,13 @@ int ad7476_scan_from_ring(struct ad7476_state *st) int ret; u8 *ring_data; - ring_data = kmalloc(ring->access.get_bytes_per_datum(ring), GFP_KERNEL); + ring_data = kmalloc(ring->access->get_bytes_per_datum(ring), + GFP_KERNEL); if (ring_data == NULL) { ret = -ENOMEM; goto error_ret; } - ret = ring->access.read_last(ring, ring_data); + ret = ring->access->read_last(ring, ring_data); if (ret) goto error_free_ring_data; @@ -67,8 +68,8 @@ static int ad7476_ring_preenable(struct iio_dev *indio_dev) st->d_size += sizeof(s64) - (st->d_size % sizeof(s64)); } - if (indio_dev->ring->access.set_bytes_per_datum) - indio_dev->ring->access.set_bytes_per_datum(indio_dev->ring, + if (indio_dev->ring->access->set_bytes_per_datum) + indio_dev->ring->access->set_bytes_per_datum(indio_dev->ring, st->d_size); return 0; @@ -79,7 +80,6 @@ static irqreturn_t ad7476_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->private_data; struct ad7476_state *st = iio_dev_get_devdata(indio_dev); - struct iio_sw_ring_buffer *sw_ring = iio_to_sw_ring(indio_dev->ring); s64 time_ns; __u8 *rxbuf; int b_sent; @@ -99,7 +99,7 @@ static irqreturn_t ad7476_trigger_handler(int irq, void *p) memcpy(rxbuf + st->d_size - sizeof(s64), &time_ns, sizeof(time_ns)); - indio_dev->ring->access.store_to(&sw_ring->buf, rxbuf, time_ns); + indio_dev->ring->access->store_to(indio_dev->ring, rxbuf, time_ns); done: iio_trigger_notify_done(indio_dev->trig); kfree(rxbuf); @@ -107,6 +107,12 @@ done: return IRQ_HANDLED; } +static const struct iio_ring_setup_ops ad7476_ring_setup_ops = { + .preenable = &ad7476_ring_preenable, + .postenable = &iio_triggered_ring_postenable, + .predisable = &iio_triggered_ring_predisable, +}; + int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev) { struct ad7476_state *st = indio_dev->dev_data; @@ -118,7 +124,7 @@ int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev) goto error_ret; } /* Effectively select the ring buffer implementation */ - iio_ring_sw_register_funcs(&indio_dev->ring->access); + indio_dev->ring->access = &ring_sw_access_funcs; indio_dev->pollfunc = kzalloc(sizeof(indio_dev->pollfunc), GFP_KERNEL); if (indio_dev->pollfunc == NULL) { ret = -ENOMEM; @@ -137,10 +143,7 @@ int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev) } /* Ring buffer functions - here trigger setup related */ - - indio_dev->ring->preenable = &ad7476_ring_preenable; - indio_dev->ring->postenable = &iio_triggered_ring_postenable; - indio_dev->ring->predisable = &iio_triggered_ring_predisable; + indio_dev->ring->setup_ops = &ad7476_ring_setup_ops; indio_dev->ring->scan_timestamp = true; /* Flag that polled ring buffering is possible */ |