diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad7298_ring.c')
| -rw-r--r-- | drivers/staging/iio/adc/ad7298_ring.c | 50 |
1 files changed, 21 insertions, 29 deletions
diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c index a04c03352624..47630d506a63 100644 --- a/drivers/staging/iio/adc/ad7298_ring.c +++ b/drivers/staging/iio/adc/ad7298_ring.c @@ -7,27 +7,24 @@ */ #include <linux/interrupt.h> -#include <linux/device.h> #include <linux/kernel.h> #include <linux/slab.h> -#include <linux/sysfs.h> #include <linux/spi/spi.h> #include "../iio.h" -#include "../ring_generic.h" +#include "../buffer_generic.h" #include "../ring_sw.h" -#include "../trigger.h" -#include "../sysfs.h" +#include "../trigger_consumer.h" #include "ad7298.h" -int ad7298_scan_from_ring(struct iio_dev *dev_info, long ch) +int ad7298_scan_from_ring(struct iio_dev *indio_dev, long ch) { - struct iio_ring_buffer *ring = dev_info->ring; + struct iio_buffer *ring = indio_dev->buffer; int ret; u16 *ring_data; - if (!(ring->scan_mask & (1 << ch))) { + if (!(test_bit(ch, ring->scan_mask))) { ret = -EBUSY; goto error_ret; } @@ -60,7 +57,7 @@ error_ret: static int ad7298_ring_preenable(struct iio_dev *indio_dev) { struct ad7298_state *st = iio_priv(indio_dev); - struct iio_ring_buffer *ring = indio_dev->ring; + struct iio_buffer *ring = indio_dev->buffer; size_t d_size; int i, m; unsigned short command; @@ -82,7 +79,7 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev) command = AD7298_WRITE | st->ext_ref; for (i = 0, m = AD7298_CH(0); i < AD7298_MAX_CHAN; i++, m >>= 1) - if (ring->scan_mask & (1 << i)) + if (test_bit(i, ring->scan_mask)) command |= m; st->tx_buf[0] = cpu_to_be16(command); @@ -120,9 +117,9 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev) static irqreturn_t ad7298_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; - struct iio_dev *indio_dev = pf->private_data; + struct iio_dev *indio_dev = pf->indio_dev; struct ad7298_state *st = iio_priv(indio_dev); - struct iio_ring_buffer *ring = indio_dev->ring; + struct iio_buffer *ring = indio_dev->buffer; s64 time_ns; __u16 buf[16]; int b_sent, i; @@ -140,29 +137,29 @@ 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->buffer->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 = { +static const struct iio_buffer_setup_ops ad7298_ring_setup_ops = { .preenable = &ad7298_ring_preenable, - .postenable = &iio_triggered_ring_postenable, - .predisable = &iio_triggered_ring_predisable, + .postenable = &iio_triggered_buffer_postenable, + .predisable = &iio_triggered_buffer_predisable, }; int ad7298_register_ring_funcs_and_init(struct iio_dev *indio_dev) { int ret; - indio_dev->ring = iio_sw_rb_allocate(indio_dev); - if (!indio_dev->ring) { + indio_dev->buffer = iio_sw_rb_allocate(indio_dev); + if (!indio_dev->buffer) { ret = -ENOMEM; goto error_ret; } /* Effectively select the ring buffer implementation */ - indio_dev->ring->access = &ring_sw_access_funcs; + indio_dev->buffer->access = &ring_sw_access_funcs; indio_dev->pollfunc = iio_alloc_pollfunc(NULL, &ad7298_trigger_handler, @@ -177,26 +174,21 @@ int ad7298_register_ring_funcs_and_init(struct iio_dev *indio_dev) } /* Ring buffer functions - here trigger setup related */ - indio_dev->ring->setup_ops = &ad7298_ring_setup_ops; - indio_dev->ring->scan_timestamp = true; + indio_dev->buffer->setup_ops = &ad7298_ring_setup_ops; + indio_dev->buffer->scan_timestamp = true; /* Flag that polled ring buffering is possible */ - indio_dev->modes |= INDIO_RING_TRIGGERED; + indio_dev->modes |= INDIO_BUFFER_TRIGGERED; return 0; error_deallocate_sw_rb: - iio_sw_rb_free(indio_dev->ring); + iio_sw_rb_free(indio_dev->buffer); error_ret: return ret; } void ad7298_ring_cleanup(struct iio_dev *indio_dev) { - if (indio_dev->trig) { - iio_put_trigger(indio_dev->trig); - iio_trigger_dettach_poll_func(indio_dev->trig, - indio_dev->pollfunc); - } iio_dealloc_pollfunc(indio_dev->pollfunc); - iio_sw_rb_free(indio_dev->ring); + iio_sw_rb_free(indio_dev->buffer); } |