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[media] v4l: VIDIOC_SUBDEV_S_SELECTION and VIDIOC_SUBDEV_G_SELECTION IOCTLs

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Add support for VIDIOC_SUBDEV_S_SELECTION and VIDIOC_SUBDEV_G_SELECTION
IOCTLs. They replace functionality provided by VIDIOC_SUBDEV_S_CROP and
VIDIOC_SUBDEV_G_CROP IOCTLs and also add new functionality (composing).

VIDIOC_SUBDEV_G_CROP and VIDIOC_SUBDEV_S_CROP continue to be supported.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sakari Ailus
2011-10-14 14:14:26 -03:00
committed by Mauro Carvalho Chehab
parent c520331a52
commit ae184cda8d
3 changed files with 90 additions and 14 deletions
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include/media/v4l2-subdev.h
+17 -4
View File
@@ -466,6 +466,10 @@ struct v4l2_subdev_pad_ops {
struct v4l2_subdev_crop *crop);
int (*get_crop)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_crop *crop);
int (*get_selection)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_selection *sel);
int (*set_selection)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_selection *sel);
};
struct v4l2_subdev_ops {
@@ -549,8 +553,11 @@ struct v4l2_subdev {
struct v4l2_subdev_fh {
struct v4l2_fh vfh;
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
struct v4l2_mbus_framefmt *try_fmt;
struct v4l2_rect *try_crop;
struct {
struct v4l2_mbus_framefmt try_fmt;
struct v4l2_rect try_crop;
struct v4l2_rect try_compose;
} *pad;
#endif
};
@@ -561,13 +568,19 @@ struct v4l2_subdev_fh {
static inline struct v4l2_mbus_framefmt *
v4l2_subdev_get_try_format(struct v4l2_subdev_fh *fh, unsigned int pad)
{
return &fh->try_fmt[pad];
return &fh->pad[pad].try_fmt;
}
static inline struct v4l2_rect *
v4l2_subdev_get_try_crop(struct v4l2_subdev_fh *fh, unsigned int pad)
{
return &fh->try_crop[pad];
return &fh->pad[pad].try_crop;
}
static inline struct v4l2_rect *
v4l2_subdev_get_try_compose(struct v4l2_subdev_fh *fh, unsigned int pad)
{
return &fh->pad[pad].try_compose;
}
#endif