aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/v4l2-core/v4l2-subdev.c (follow)
AgeCommit message (Collapse)AuthorFilesLines
2014-08-21[media] v4l: subdev: Extend default link validation to cover field orderLaurent Pinchart1-0/+9
The field order must match between the source and sink pads, or the sink pad field order must be NONE. This allows connecting an interlaced source to a bridge that has no hardware support for interlaced formats. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Enrico Butera <ebutera@users.sourceforge.net> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-22[media] v4l2-subdev: Fix compilation when !VIDEO_V4L2_SUBDEV_APIMauro Carvalho Chehab1-1/+3
As reported by Kbuildtest: drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_format': drivers/media/v4l2-core/v4l2-subdev.c:136:23: error: 'struct v4l2_subdev' has no member named 'entity' if (format->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_crop': drivers/media/v4l2-core/v4l2-subdev.c:148:21: error: 'struct v4l2_subdev' has no member named 'entity' if (crop->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_selection': drivers/media/v4l2-core/v4l2-subdev.c:161:20: error: 'struct v4l2_subdev' has no member named 'entity' if (sel->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_edid': drivers/media/v4l2-core/v4l2-subdev.c:169:21: error: 'struct v4l2_subdev' has no member named 'entity' if (edid->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'subdev_do_ioctl': >> drivers/media/v4l2-core/v4l2-subdev.c:186:6: warning: unused variable 'rval' [-Wunused-variable] int rval; ^ drivers/media/v4l2-core/v4l2-subdev.c: At top level: drivers/media/v4l2-core/v4l2-subdev.c:129:12: warning: 'check_format' defined but not used [-Wunused-function] static int check_format(struct v4l2_subdev *sd, ^ drivers/media/v4l2-core/v4l2-subdev.c:142:12: warning: 'check_crop' defined but not used [-Wunused-function] static int check_crop(struct v4l2_subdev *sd, struct v4l2_subdev_crop *crop) ^ drivers/media/v4l2-core/v4l2-subdev.c:154:12: warning: 'check_selection' defined but not used [-Wunused-function] static int check_selection(struct v4l2_subdev *sd, ^ drivers/media/v4l2-core/v4l2-subdev.c:167:12: warning: 'check_edid' defined but not used [-Wunused-function] static int check_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid) The above warnins happen because those functions are used only when the V4L2 subdev API is enabled. Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-22[media] v4l: subdev: Unify argument validation across IOCTLsSakari Ailus1-46/+74
Separate validation of different argument types. There's no reason to do this separately for every IOCTL. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-17[media] v4l2: integrate support for VIDIOC_QUERY_EXT_CTRLHans Verkuil1-0/+3
Add the v4l2 core plumbing for the new VIDIOC_QUERY_EXT_CTRL ioctl. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-05-25[media] v4l: Validate fields in the core code for subdev EDID ioctlsLaurent Pinchart1-4/+20
The subdev EDID ioctls receive a pad field that must reference an existing pad and an EDID field that must point to a buffer. Validate both fields in the core code instead of duplicating validation in all drivers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-05-25[media] v4l: Add support for DV timings ioctls on subdev nodesLaurent Pinchart1-0/+27
Validate the pad field in the core code whenever specified. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-05-13[media] v4l: Check pad arguments for [gs]_frame_intervalSakari Ailus1-2/+14
VIDIOC_SUBDEV_[GS]_FRAME_INTERVAL IOCTLs argument structs contain the pad field but the validity check was missing. There should be no implications security-wise from this since no driver currently uses the pad field in the struct. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-11[media] v4l2: add VIDIOC_G/S_EDID support to the v4l2 coreHans Verkuil1-2/+2
Support this ioctl as part of the v4l2 core. Use the new ioctl name and struct v4l2_edid type in the existing core code. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-24[media] v4l2-subdev: Allow 32-bit compat ioctlsHans Verkuil1-0/+14
Add support for 32-bit ioctls with v4l-subdev device nodes. Rather than keep adding new ioctls to the list in v4l2-compat-ioctl32.c, just check if the ioctl is a non-private V4L2 ioctl and if so, call the conversion code. We keep forgetting to add new ioctls, so this is a more robust solution. In addition extend the subdev API with support for a compat32 function to convert custom v4l-subdev ioctls. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2012-11-22[media] v4l: Don't warn during link validation when encountering a V4L2 devnodeLaurent Pinchart1-11/+11
v4l2_subdev_link_validate_get_format() retrieves the remote pad format depending on the entity type and prints a warning if the entity type is not supported. The type check doesn't take the subtype into account, and thus always prints a warning for device node types, even when supported. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-13[media] v4l2-subdev: add support for the new edid ioctlsHans Verkuil1-0/+6
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-13[media] v4l: move v4l2 core into a separate directoryMauro Carvalho Chehab1-0/+470
Currently, the v4l2 core is mixed together with other non-core drivers. Move them into a separate directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>