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path: root/drivers/staging/iio/adc/ad7192.c
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Diffstat (limited to 'drivers/staging/iio/adc/ad7192.c')
-rw-r--r--drivers/staging/iio/adc/ad7192.c80
1 files changed, 34 insertions, 46 deletions
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 797e65cd03e..45f4504ed92 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -19,7 +19,7 @@
#include "../iio.h"
#include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
#include "../ring_sw.h"
#include "../trigger.h"
#include "../trigger_consumer.h"
@@ -453,25 +453,6 @@ out:
return ret;
}
-static int ad7192_scan_from_ring(struct ad7192_state *st, unsigned ch, int *val)
-{
- struct iio_buffer *ring = iio_priv_to_dev(st)->buffer;
- int ret;
- s64 dat64[2];
- u32 *dat32 = (u32 *)dat64;
-
- if (!(test_bit(ch, ring->scan_mask)))
- return -EBUSY;
-
- ret = ring->access->read_last(ring, (u8 *) &dat64);
- if (ret)
- return ret;
-
- *val = *dat32;
-
- return 0;
-}
-
static int ad7192_ring_preenable(struct iio_dev *indio_dev)
{
struct ad7192_state *st = iio_priv(indio_dev);
@@ -479,12 +460,14 @@ static int ad7192_ring_preenable(struct iio_dev *indio_dev)
size_t d_size;
unsigned channel;
- if (!ring->scan_count)
+ if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
return -EINVAL;
- channel = find_first_bit(ring->scan_mask, indio_dev->masklength);
+ channel = find_first_bit(indio_dev->active_scan_mask,
+ indio_dev->masklength);
- d_size = ring->scan_count *
+ d_size = bitmap_weight(indio_dev->active_scan_mask,
+ indio_dev->masklength) *
indio_dev->channels[0].scan_type.storagebits / 8;
if (ring->scan_timestamp) {
@@ -544,7 +527,7 @@ static irqreturn_t ad7192_trigger_handler(int irq, void *p)
s64 dat64[2];
s32 *dat32 = (s32 *)dat64;
- if (ring->scan_count)
+ if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
__ad7192_read_reg(st, 1, 1, AD7192_REG_DATA,
dat32,
indio_dev->channels[0].scan_type.realbits/8);
@@ -592,7 +575,7 @@ static int ad7192_register_ring_funcs_and_init(struct iio_dev *indio_dev)
}
/* Ring buffer functions - here trigger setup related */
- indio_dev->buffer->setup_ops = &ad7192_ring_setup_ops;
+ indio_dev->setup_ops = &ad7192_ring_setup_ops;
/* Flag that polled ring buffering is possible */
indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
@@ -626,6 +609,10 @@ static irqreturn_t ad7192_data_rdy_trig_poll(int irq, void *private)
return IRQ_HANDLED;
}
+static struct iio_trigger_ops ad7192_trigger_ops = {
+ .owner = THIS_MODULE,
+};
+
static int ad7192_probe_trigger(struct iio_dev *indio_dev)
{
struct ad7192_state *st = iio_priv(indio_dev);
@@ -638,7 +625,7 @@ static int ad7192_probe_trigger(struct iio_dev *indio_dev)
ret = -ENOMEM;
goto error_ret;
}
-
+ st->trig->ops = &ad7192_trigger_ops;
ret = request_irq(st->spi->irq,
ad7192_data_rdy_trig_poll,
IRQF_TRIGGER_LOW,
@@ -650,7 +637,6 @@ static int ad7192_probe_trigger(struct iio_dev *indio_dev)
disable_irq_nosync(st->spi->irq);
st->irq_dis = true;
st->trig->dev.parent = &st->spi->dev;
- st->trig->owner = THIS_MODULE;
st->trig->private_data = indio_dev;
ret = iio_trigger_register(st->trig);
@@ -795,7 +781,7 @@ static ssize_t ad7192_set(struct device *dev,
return -EBUSY;
}
- switch (this_attr->address) {
+ switch ((u32) this_attr->address) {
case AD7192_REG_GPOCON:
if (val)
st->gpocon |= AD7192_GPOCON_BPDSW;
@@ -873,8 +859,7 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
case 0:
mutex_lock(&indio_dev->mlock);
if (iio_buffer_enabled(indio_dev))
- ret = ad7192_scan_from_ring(st,
- chan->scan_index, &smpl);
+ ret = -EBUSY;
else
ret = ad7192_read(st, chan->address,
chan->scan_type.realbits / 8, &smpl);
@@ -901,18 +886,20 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
}
return IIO_VAL_INT;
- case (1 << IIO_CHAN_INFO_SCALE_SHARED):
- mutex_lock(&indio_dev->mlock);
- *val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
- *val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
- mutex_unlock(&indio_dev->mlock);
-
- return IIO_VAL_INT_PLUS_NANO;
-
- case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
- *val = 1000;
-
- return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ switch (chan->type) {
+ case IIO_VOLTAGE:
+ mutex_lock(&indio_dev->mlock);
+ *val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
+ *val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
+ mutex_unlock(&indio_dev->mlock);
+ return IIO_VAL_INT_PLUS_NANO;
+ case IIO_TEMP:
+ *val = 1000;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
}
return -EINVAL;
@@ -935,7 +922,7 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
}
switch (mask) {
- case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+ case IIO_CHAN_INFO_SCALE:
ret = -EINVAL;
for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
if (val2 == st->scale_avail[i][1]) {
@@ -992,7 +979,7 @@ static const struct iio_info ad7192_info = {
.extend_name = _name, \
.channel = _chan, \
.channel2 = _chan2, \
- .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED), \
+ .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT, \
.address = _address, \
.scan_index = _si, \
.scan_type = IIO_ST('s', 24, 32, 0)}
@@ -1001,7 +988,7 @@ static const struct iio_info ad7192_info = {
{ .type = IIO_VOLTAGE, \
.indexed = 1, \
.channel = _chan, \
- .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED), \
+ .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT, \
.address = _address, \
.scan_index = _si, \
.scan_type = IIO_ST('s', 24, 32, 0)}
@@ -1010,7 +997,7 @@ static const struct iio_info ad7192_info = {
{ .type = IIO_TEMP, \
.indexed = 1, \
.channel = _chan, \
- .info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE), \
+ .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \
.address = _address, \
.scan_index = _si, \
.scan_type = IIO_ST('s', 24, 32, 0)}
@@ -1151,6 +1138,7 @@ static const struct spi_device_id ad7192_id[] = {
{"ad7195", ID_AD7195},
{}
};
+MODULE_DEVICE_TABLE(spi, ad7192_id);
static struct spi_driver ad7192_driver = {
.driver = {
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-04 11:02:42 +0000