[media] V4L: Add s_rx_buffer subdev video operation
The s_rx_buffer callback allows the host to set buffer for a data being received by the subdev, e.g. non-image frame (meta) data. This callback can be implemented by subdevice like a MIPI CSI2 receiver, allowing the host driver to gather additional data into frame buffer passed to user space. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -274,6 +274,10 @@ struct v4l2_subdev_audio_ops {
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s_mbus_config: set a certain mediabus configuration. This operation is added
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s_mbus_config: set a certain mediabus configuration. This operation is added
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for compatibility with soc-camera drivers and should not be used by new
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for compatibility with soc-camera drivers and should not be used by new
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software.
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software.
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s_rx_buffer: set a host allocated memory buffer for the subdev. The subdev
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can adjust @size to a lower value and must not write more data to the
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buffer starting at @data than the original value of @size.
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*/
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*/
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struct v4l2_subdev_video_ops {
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struct v4l2_subdev_video_ops {
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int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config);
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int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config);
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@ -327,6 +331,8 @@ struct v4l2_subdev_video_ops {
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struct v4l2_mbus_config *cfg);
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struct v4l2_mbus_config *cfg);
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int (*s_mbus_config)(struct v4l2_subdev *sd,
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int (*s_mbus_config)(struct v4l2_subdev *sd,
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const struct v4l2_mbus_config *cfg);
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const struct v4l2_mbus_config *cfg);
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int (*s_rx_buffer)(struct v4l2_subdev *sd, void *buf,
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unsigned int *size);
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};
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};
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/*
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/*
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