Camera fixups for 6.6 #5613
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Camera fixups for 6.6 #5613
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Fixes "8a090fc3e549 bcm2835-unicam: hacks to allow it to build"
The HBLANK control was read-only, and always configured such that the sensor HTS register was 3448. This limited the maximum exposure time that could be achieved to around 1.26 secs. Make HBLANK read/write so that the line time can be extended, and thereby allow longer exposures (and slower frame rates). Retain the overall HTS setting when changing modes rather than resetting it to a default. Signed-off-by: Dave Stevenson <[email protected]>
This commit updates the imx219 driver to adverise support for embedded data streams. This can then be used by the bcm2835-unicam driver, which has recently been updated to expose the embedded data stream to userland. The imx219 sensor subdevice overloads the media pad to differentiate between image stream (pad 0) and embedded data stream (pad 1) when performing the v4l2_subdev_pad_ops functions. Signed-off-by: Naushir Patuck <[email protected]> Signed-off-by: Dave Stevenson <[email protected]>
The 640x480 mode uses a special binning mode for high framerate operation where the pixel rate is effectively doubled. Account for this when setting up the pixel clock rate, and applying the vblank and exposure controls. Signed-off-by: Naushir Patuck <[email protected]>
At a high FPS with RAW10, there is frame corruption for 480p because the rate_factor of 2 is used with the normal 2x2 bining [1]. This commit ties the rate_factor to the selected binning mode. For the 480p mode, analog 2x2 binning mode with a rate_factor of 2 is always used. For the 1232p mode the normal 2x2 binning mode is used for RAW10 while analog 2x2 binning mode is used for RAW8. [1] raspberrypi#5493 Signed-off-by: Vinay Varma <[email protected]> Reworked due to upstream changes Signed-off-by: Dave Stevenson <[email protected]>
Signed-off-by: Dave Stevenson <[email protected]>
pelwell
reviewed
Sep 25, 2023
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Brings in the imx219 and video-mux patches that didn't rebase easily, and fixes up unicam patch.