diff options
Diffstat (limited to 'drivers/staging/iio/adc/max1363_ring.c')
| -rw-r--r-- | drivers/staging/iio/adc/max1363_ring.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c index 786b17a..5532f3e 100644 --- a/drivers/staging/iio/adc/max1363_ring.c +++ b/drivers/staging/iio/adc/max1363_ring.c @@ -30,22 +30,20 @@ /* Todo: test this */ int max1363_single_channel_from_ring(long mask, struct max1363_state *st) { - unsigned long numvals; + struct iio_ring_buffer *ring = st->indio_dev->ring; int count = 0, ret; u8 *ring_data; if (!(st->current_mode->modemask & mask)) { ret = -EBUSY; goto error_ret; } - numvals = hweight_long(st->current_mode->modemask); - ring_data = kmalloc(numvals*2, GFP_KERNEL); + ring_data = kmalloc(ring->access.get_bytes_per_datum(ring), GFP_KERNEL); if (ring_data == NULL) { ret = -ENOMEM; goto error_ret; } - ret = st->indio_dev->ring->access.read_last(st->indio_dev->ring, - ring_data); + ret = ring->access.read_last(ring, ring_data); if (ret) goto error_free_ring_data; /* Need a count of channels prior to this one */ @@ -77,6 +75,7 @@ error_ret: static int max1363_ring_preenable(struct iio_dev *indio_dev) { struct max1363_state *st = indio_dev->dev_data; + struct iio_ring_buffer *ring = indio_dev->ring; size_t d_size; unsigned long numvals; @@ -84,7 +83,7 @@ static int max1363_ring_preenable(struct iio_dev *indio_dev) * Need to figure out the current mode based upon the requested * scan mask in iio_dev */ - st->current_mode = max1363_match_mode(st->indio_dev->scan_mask, + st->current_mode = max1363_match_mode(ring->scan_mask, st->chip_info); if (!st->current_mode) return -EINVAL; @@ -92,14 +91,14 @@ static int max1363_ring_preenable(struct iio_dev *indio_dev) max1363_set_scan_mode(st); numvals = hweight_long(st->current_mode->modemask); - if (indio_dev->ring->access.set_bpd) { + if (ring->access.set_bytes_per_datum) { if (st->chip_info->bits != 8) d_size = numvals*2 + sizeof(s64); else d_size = numvals + sizeof(s64); if (d_size % 8) d_size += 8 - (d_size % 8); - indio_dev->ring->access.set_bpd(indio_dev->ring, d_size); + ring->access.set_bytes_per_datum(ring, d_size); } return 0; @@ -135,7 +134,7 @@ static void max1363_poll_bh_to_ring(struct work_struct *work_s) struct max1363_state *st = container_of(work_s, struct max1363_state, poll_work); struct iio_dev *indio_dev = st->indio_dev; - struct iio_sw_ring_buffer *ring = iio_to_sw_ring(indio_dev->ring); + struct iio_sw_ring_buffer *sw_ring = iio_to_sw_ring(indio_dev->ring); s64 time_ns; __u8 *rxbuf; int b_sent; @@ -175,7 +174,7 @@ static void max1363_poll_bh_to_ring(struct work_struct *work_s) memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns)); - indio_dev->ring->access.store_to(&ring->buf, rxbuf, time_ns); + indio_dev->ring->access.store_to(&sw_ring->buf, rxbuf, time_ns); done: kfree(rxbuf); atomic_dec(&st->protect_ring); @@ -193,12 +192,13 @@ int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev) goto error_ret; } /* Effectively select the ring buffer implementation */ - iio_ring_sw_register_funcs(&st->indio_dev->ring->access); + iio_ring_sw_register_funcs(&indio_dev->ring->access); ret = iio_alloc_pollfunc(indio_dev, NULL, &max1363_poll_func_th); if (ret) goto error_deallocate_sw_rb; /* Ring buffer functions - here trigger setup related */ + indio_dev->ring->scan_el_attrs = st->chip_info->scan_attrs; indio_dev->ring->postenable = &iio_triggered_ring_postenable; indio_dev->ring->preenable = &max1363_ring_preenable; indio_dev->ring->predisable = &iio_triggered_ring_predisable; |
