Hello,
we're working with a special cameraboard (CCD + Analog Frontend IC).
Using the soc_camera stack on the i.MX35 (mx3_camera) the following
problem arises:
VIDIOC_STREAMON calls soc_camera_streamon which calls videobuf_streamon
- when iterating the buffers in the queue the function
mx3_videobuf_queue is called for every buffer. This sends the buffers to
the omage DMA (IDMAC) using the tx_submit method. The function
ipu_init_channel_buffer (DMA driver ipu_core) gets only one buffer from
the scatterlist, this leads to a single buffer capture.
In the code of mx3_videobuf_prepare there is a comment, that the first
buffer's scatterlist needs to contain two buffers but this is not
implemented.
I try to understand the interworking of the parts (soc_camera, videobuf,
ipu_core and mx3_camera) and would help to fix it.
Best regards,
Markus Niebel
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