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704a84ccd [media] media: Support Intersil/Techwell TW686x-based video capture cards ... Browse Code ยป
This commit introduces the support for the Techwell TW686x video
capture IC. This hardware supports a few DMA modes, including
scatter-gather and frame (contiguous).This commit makes little use of the DMA engine and instead has
a memcpy based implementation. DMA frame and scatter-gather modes
support may be added in the future.Currently supported chips:
- TW6864 (4 video channels),
- TW6865 (4 video channels, not tested, second generation chip),
- TW6868 (8 video channels but only 4 first channels using
built-in video decoder are supported, not tested),
- TW6869 (8 video channels, second generation chip).[mchehab@osg.samsung.com: make checkpatch happy by using "unsigned int"
instead of just "unsigned"]
Cc: Krzysztof Halasa
Signed-off-by: Ezequiel Garcia
Signed-off-by: Hans Verkuil
Tested-by: Hans VerkuilSigned-off-by: Mauro Carvalho Chehab