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path: root/drivers/staging/iio/accel/lis3l02dq_ring.c
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Diffstat (limited to 'drivers/staging/iio/accel/lis3l02dq_ring.c')
-rw-r--r--drivers/staging/iio/accel/lis3l02dq_ring.c79
1 files changed, 46 insertions, 33 deletions
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index a960a8f..330d5d6 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -75,22 +75,30 @@ error_ret:
return ret;
}
-static IIO_SCAN_EL_C(accel_x, 0, IIO_SIGNED(16),
+static IIO_SCAN_EL_C(accel_x, 0,
LIS3L02DQ_REG_OUT_X_L_ADDR,
&lis3l02dq_scan_el_set_state);
-static IIO_SCAN_EL_C(accel_y, 1, IIO_SIGNED(16),
+static IIO_SCAN_EL_C(accel_y, 1,
LIS3L02DQ_REG_OUT_Y_L_ADDR,
&lis3l02dq_scan_el_set_state);
-static IIO_SCAN_EL_C(accel_z, 2, IIO_SIGNED(16),
+static IIO_SCAN_EL_C(accel_z, 2,
LIS3L02DQ_REG_OUT_Z_L_ADDR,
&lis3l02dq_scan_el_set_state);
+static IIO_CONST_ATTR_SCAN_EL_TYPE(accel, s, 12, 16);
static IIO_SCAN_EL_TIMESTAMP(3);
+static IIO_CONST_ATTR_SCAN_EL_TYPE(timestamp, s, 64, 64);
static struct attribute *lis3l02dq_scan_el_attrs[] = {
&iio_scan_el_accel_x.dev_attr.attr,
+ &iio_const_attr_accel_x_index.dev_attr.attr,
&iio_scan_el_accel_y.dev_attr.attr,
+ &iio_const_attr_accel_y_index.dev_attr.attr,
&iio_scan_el_accel_z.dev_attr.attr,
+ &iio_const_attr_accel_z_index.dev_attr.attr,
+ &iio_const_attr_accel_type.dev_attr.attr,
&iio_scan_el_timestamp.dev_attr.attr,
+ &iio_const_attr_timestamp_index.dev_attr.attr,
+ &iio_const_attr_timestamp_type.dev_attr.attr,
NULL,
};
@@ -150,38 +158,40 @@ ssize_t lis3l02dq_read_accel_from_ring(struct device *dev,
int ret, len = 0, i = 0;
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
struct iio_dev *dev_info = dev_get_drvdata(dev);
+ struct iio_ring_buffer *ring = dev_info->ring;
+ struct attribute_group *scan_el_attrs = ring->scan_el_attrs;
s16 *data;
- while (dev_info->scan_el_attrs->attrs[i]) {
+ while (scan_el_attrs->attrs[i]) {
el = to_iio_scan_el((struct device_attribute *)
- (dev_info->scan_el_attrs->attrs[i]));
+ (scan_el_attrs->attrs[i]));
/* label is in fact the address */
if (el->label == this_attr->address)
break;
i++;
}
- if (!dev_info->scan_el_attrs->attrs[i]) {
+ if (!scan_el_attrs->attrs[i]) {
ret = -EINVAL;
goto error_ret;
}
/* If this element is in the scan mask */
- ret = iio_scan_mask_query(dev_info, el->number);
+ ret = iio_scan_mask_query(ring, el->number);
if (ret < 0)
goto error_ret;
if (ret) {
- data = kmalloc(dev_info->ring->access.get_bpd(dev_info->ring),
+ data = kmalloc(ring->access.get_bytes_per_datum(ring),
GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
- ret = dev_info->ring->access.read_last(dev_info->ring,
- (u8 *)data);
+ ret = ring->access.read_last(ring,
+ (u8 *)data);
if (ret)
goto error_free_data;
} else {
ret = -EINVAL;
goto error_ret;
}
- len = iio_scan_mask_count_to_right(dev_info, el->number);
+ len = iio_scan_mask_count_to_right(ring, el->number);
if (len < 0) {
ret = len;
goto error_free_data;
@@ -211,11 +221,12 @@ static const u8 read_all_tx_array[] = {
**/
static int lis3l02dq_read_all(struct lis3l02dq_state *st, u8 *rx_array)
{
+ struct iio_ring_buffer *ring = st->help.indio_dev->ring;
struct spi_transfer *xfers;
struct spi_message msg;
int ret, i, j = 0;
- xfers = kzalloc((st->help.indio_dev->scan_count) * 2
+ xfers = kzalloc((ring->scan_count) * 2
* sizeof(*xfers), GFP_KERNEL);
if (!xfers)
return -ENOMEM;
@@ -223,7 +234,7 @@ static int lis3l02dq_read_all(struct lis3l02dq_state *st, u8 *rx_array)
mutex_lock(&st->buf_lock);
for (i = 0; i < ARRAY_SIZE(read_all_tx_array)/4; i++) {
- if (st->help.indio_dev->scan_mask & (1 << i)) {
+ if (ring->scan_mask & (1 << i)) {
/* lower byte */
xfers[j].tx_buf = st->tx + 2*j;
st->tx[2*j] = read_all_tx_array[i*4];
@@ -251,7 +262,7 @@ static int lis3l02dq_read_all(struct lis3l02dq_state *st, u8 *rx_array)
* values in alternate bytes
*/
spi_message_init(&msg);
- for (j = 0; j < st->help.indio_dev->scan_count * 2; j++)
+ for (j = 0; j < ring->scan_count * 2; j++)
spi_message_add_tail(&xfers[j], &msg);
ret = spi_sync(st->us, &msg);
@@ -279,13 +290,13 @@ static int lis3l02dq_get_ring_element(struct iio_sw_ring_helper_state *h,
u8 *rx_array ;
s16 *data = (s16 *)buf;
- rx_array = kzalloc(4 * (h->indio_dev->scan_count), GFP_KERNEL);
+ rx_array = kzalloc(4 * (h->indio_dev->ring->scan_count), GFP_KERNEL);
if (rx_array == NULL)
return -ENOMEM;
ret = lis3l02dq_read_all(lis3l02dq_h_to_s(h), rx_array);
if (ret < 0)
return ret;
- for (i = 0; i < h->indio_dev->scan_count; i++)
+ for (i = 0; i < h->indio_dev->ring->scan_count; i++)
data[i] = combine_8_to_16(rx_array[i*4+1],
rx_array[i*4+3]);
kfree(rx_array);
@@ -379,7 +390,8 @@ static int lis3l02dq_data_rdy_trigger_set_state(struct iio_trigger *trig,
&t);
return ret;
}
-static DEVICE_ATTR(name, S_IRUGO, iio_trigger_read_name, NULL);
+
+static IIO_TRIGGER_NAME_ATTR;
static struct attribute *lis3l02dq_trigger_attrs[] = {
&dev_attr_name.attr,
@@ -479,28 +491,29 @@ int lis3l02dq_configure_ring(struct iio_dev *indio_dev)
{
int ret;
struct iio_sw_ring_helper_state *h = iio_dev_get_devdata(indio_dev);
-
+ struct iio_ring_buffer *ring;
INIT_WORK(&h->work_trigger_to_ring, lis3l02dq_trigger_bh_to_ring);
- /* Set default scan mode */
h->get_ring_element = &lis3l02dq_get_ring_element;
- iio_scan_mask_set(indio_dev, iio_scan_el_accel_x.number);
- iio_scan_mask_set(indio_dev, iio_scan_el_accel_y.number);
- iio_scan_mask_set(indio_dev, iio_scan_el_accel_z.number);
- indio_dev->scan_timestamp = true;
- indio_dev->scan_el_attrs = &lis3l02dq_scan_el_group;
-
- indio_dev->ring = iio_sw_rb_allocate(indio_dev);
- if (!indio_dev->ring)
+ ring = iio_sw_rb_allocate(indio_dev);
+ if (!ring)
return -ENOMEM;
+ indio_dev->ring = ring;
/* Effectively select the ring buffer implementation */
- iio_ring_sw_register_funcs(&indio_dev->ring->access);
- indio_dev->ring->bpe = 2;
- indio_dev->ring->preenable = &iio_sw_ring_preenable;
- indio_dev->ring->postenable = &iio_triggered_ring_postenable;
- indio_dev->ring->predisable = &iio_triggered_ring_predisable;
- indio_dev->ring->owner = THIS_MODULE;
+ iio_ring_sw_register_funcs(&ring->access);
+ ring->bpe = 2;
+ ring->scan_el_attrs = &lis3l02dq_scan_el_group;
+ ring->scan_timestamp = true;
+ ring->preenable = &iio_sw_ring_preenable;
+ ring->postenable = &iio_triggered_ring_postenable;
+ ring->predisable = &iio_triggered_ring_predisable;
+ ring->owner = THIS_MODULE;
+
+ /* Set default scan mode */
+ iio_scan_mask_set(ring, iio_scan_el_accel_x.number);
+ iio_scan_mask_set(ring, iio_scan_el_accel_y.number);
+ iio_scan_mask_set(ring, iio_scan_el_accel_z.number);
ret = iio_alloc_pollfunc(indio_dev, NULL, &lis3l02dq_poll_func_th);
if (ret)
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