Commit 8a546445 authored by Tomi Valkeinen's avatar Tomi Valkeinen Committed by Mauro Carvalho Chehab
Browse files

media: subdev: Require code change to enable [GS]_ROUTING 



The Streams API is an experimental feature. To use the Streams API, the
user needs to change a variable in v4l2-subdev.c and recompile the kernel.

This commit should be reverted when the Streams API is deemed ready for
production use.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent a418bb3f

drivers/media/v4l2-core/v4l2-subdev.c

+15 −0
Original line number Diff line number Diff line
@@ -23,6 +23,15 @@ 
#include <media/v4l2-fh.h>

#include <media/v4l2-ioctl.h>



#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)

/*

 * The Streams API is an experimental feature. To use the Streams API, set

 * 'v4l2_subdev_enable_streams_api' to 1 below.

 */



static bool v4l2_subdev_enable_streams_api;

#endif



/*

 * Maximum stream ID is 63 for now, as we use u64 bitmask to represent a set

 * of streams.
@@ -766,6 +775,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg, 
		struct v4l2_subdev_routing *routing = arg;

		struct v4l2_subdev_krouting *krouting;



		if (!v4l2_subdev_enable_streams_api)

			return -ENOIOCTLCMD;



		if (!(sd->flags & V4L2_SUBDEV_FL_STREAMS))

			return -ENOIOCTLCMD;
@@ -793,6 +805,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg, 
		struct v4l2_subdev_krouting krouting = {};

		unsigned int i;



		if (!v4l2_subdev_enable_streams_api)

			return -ENOIOCTLCMD;



		if (!(sd->flags & V4L2_SUBDEV_FL_STREAMS))

			return -ENOIOCTLCMD;