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YUV sensors don't provide the necessary information to fill
CameraSensorInfo, as they include an ISP and provide a higher-level API
that doesn't always expose low-level information. The CameraSensor class
makes low-level V4L2 controls mandatory for all sensors, which prevents
usage of YUV sensors with the simple pipeline handler.
Make CameraSensor::sensorInfo() available for raw sensors only. This
won't introduce any regression in pipeline handlers that currently use
the sensorInfo() function as they all operate with raw sensors, and
won't be a limitation for the simple pipeline handler as well as it
doesn't use sensor info. If part of the sensor info (such as the active
pixel array size for instance) becomes useful to expose for YUV sensors
in the future, the sensorInfo() function can be extended to report that
information only and skip data that is only available for raw sensors.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Add the V4L2_CID_VBLANK control to the list of mandatory controls
the sensor driver has to report and document the new requirement.
The vertical blanking control is used to calculate the frame duration.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add the V4L2_CID_EXPOSURE control to the list of mandatory controls the
sensor driver has to report and document this new requirement.
While at it, re-sort the mandatory V4L2 controls in alphabetical
order in the CameraSensor class and remove the above comment as
the usage of the controls is better reported in the documentation.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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The description of the V4L2_CID_CAMERA_SENSOR_ROTATION control
usage wrongly mentioned the camera "orientation" while it actually
reports the camera rotation.
Fix it by using the right term.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reported-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Reorder the introductory section of the sensor driver requirements
document to match the expected English language syntax.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Suggested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Document the feature an image sensor driver has to provide to be
fully libcamera-compliant.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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