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staging:iio: Add support for multiple buffers

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Route all buffer writes through the demux.
Addition or removal of a buffer results in tear down and
setup of all the buffers for a given device.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Tested-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
This commit is contained in:
Jonathan Cameron
2012-06-30 20:06:00 +01:00
parent 4eb3ccf157
commit 84b36ce5f7
30 changed files with 313 additions and 210 deletions
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3
drivers/iio/light/adjd_s311.c
View File

@@ -164,7 +164,6 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct adjd_s311_data *data = iio_priv(indio_dev);
struct iio_buffer *buffer = indio_dev->buffer;
s64 time_ns = iio_get_time_ns();
int len = 0;
int i, j = 0;
@@ -187,7 +186,7 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
if (indio_dev->scan_timestamp)
*(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64)))
= time_ns;
iio_push_to_buffer(buffer, (u8 *)data->buffer);
iio_push_to_buffers(indio_dev, (u8 *)data->buffer);
done:
iio_trigger_notify_done(indio_dev->trig);

15
drivers/iio/light/hid-sensor-als.c
View File

@@ -176,21 +176,8 @@ static const struct iio_info als_info = {
/* Function to push data to buffer */
static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
{
struct iio_buffer *buffer = indio_dev->buffer;
int datum_sz;
dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
if (!buffer) {
dev_err(&indio_dev->dev, "Buffer == NULL\n");
return;
}
datum_sz = buffer->access->get_bytes_per_datum(buffer);
if (len > datum_sz) {
dev_err(&indio_dev->dev, "Datum size mismatch %d:%d\n", len,
datum_sz);
return;
}
iio_push_to_buffer(buffer, (u8 *)data);
iio_push_to_buffers(indio_dev, (u8 *)data);
}
/* Callback handler to send event after all samples are received and captured */