[media] v4l: add g_std_output callback to V4L2 subdev
Callback is used to acquire current analog TV standard from a subdev. It is used to avoid keeping current standard in top-level driver. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -229,6 +229,9 @@ struct v4l2_subdev_audio_ops {
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s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by
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video input devices.
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g_std_output: get current standard for video OUTPUT devices. This is ignored
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by video input devices.
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g_tvnorms_output: get v4l2_std_id with all standards supported by video
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OUTPUT device. This is ignored by video input devices.
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@ -269,6 +272,7 @@ 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_crystal_freq)(struct v4l2_subdev *sd, u32 freq, u32 flags);
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int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std);
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int (*g_std_output)(struct v4l2_subdev *sd, v4l2_std_id *std);
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int (*querystd)(struct v4l2_subdev *sd, v4l2_std_id *std);
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int (*g_tvnorms_output)(struct v4l2_subdev *sd, v4l2_std_id *std);
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int (*g_input_status)(struct v4l2_subdev *sd, u32 *status);
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