aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/iio/adc/ad7298_ring.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/iio/adc/ad7298_ring.c')
-rw-r--r--drivers/staging/iio/adc/ad7298_ring.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c
index d3251f7..09b1477 100644
--- a/drivers/staging/iio/adc/ad7298_ring.c
+++ b/drivers/staging/iio/adc/ad7298_ring.c
@@ -32,13 +32,13 @@ int ad7298_scan_from_ring(struct ad7298_state *st, long ch)
goto error_ret;
}
- ring_data = kmalloc(ring->access.get_bytes_per_datum(ring),
+ 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, (u8 *) ring_data);
+ ret = ring->access->read_last(ring, (u8 *) ring_data);
if (ret)
goto error_free_ring_data;
@@ -74,8 +74,8 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev)
d_size += sizeof(s64) - (d_size % sizeof(s64));
}
- if (ring->access.set_bytes_per_datum)
- ring->access.set_bytes_per_datum(ring, d_size);
+ if (ring->access->set_bytes_per_datum)
+ ring->access->set_bytes_per_datum(ring, d_size);
st->d_size = d_size;
@@ -140,12 +140,18 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p)
for (i = 0; i < ring->scan_count; i++)
buf[i] = be16_to_cpu(st->rx_buf[i]);
- indio_dev->ring->access.store_to(ring, (u8 *)buf, time_ns);
+ indio_dev->ring->access->store_to(ring, (u8 *)buf, time_ns);
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
}
+static const struct iio_ring_setup_ops ad7298_ring_setup_ops = {
+ .preenable = &ad7298_ring_preenable,
+ .postenable = &iio_triggered_ring_postenable,
+ .predisable = &iio_triggered_ring_predisable,
+};
+
int ad7298_register_ring_funcs_and_init(struct iio_dev *indio_dev)
{
int ret;
@@ -156,7 +162,7 @@ int ad7298_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) {
@@ -173,10 +179,7 @@ int ad7298_register_ring_funcs_and_init(struct iio_dev *indio_dev)
goto error_free_poll_func;
}
/* Ring buffer functions - here trigger setup related */
- indio_dev->ring->preenable = &ad7298_ring_preenable;
- indio_dev->ring->postenable = &iio_triggered_ring_postenable;
- indio_dev->ring->predisable = &iio_triggered_ring_predisable;
-
+ indio_dev->ring->setup_ops = &ad7298_ring_setup_ops;
indio_dev->ring->scan_timestamp = true;
/* Flag that polled ring buffering is possible */