diff options
Diffstat (limited to 'drivers/staging/media/omap4iss/iss_video.c')
| -rw-r--r-- | drivers/staging/media/omap4iss/iss_video.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c index 90b7ff56722d..c16927ac8eb0 100644 --- a/drivers/staging/media/omap4iss/iss_video.c +++ b/drivers/staging/media/omap4iss/iss_video.c @@ -646,6 +646,103 @@ iss_video_try_format(struct file *file, void *fh, struct v4l2_format *format) } static int +iss_video_get_selection(struct file *file, void *fh, struct v4l2_selection *sel) +{ + struct iss_video *video = video_drvdata(file); + struct v4l2_subdev_format format; + struct v4l2_subdev *subdev; + struct v4l2_subdev_selection sdsel = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .target = sel->target, + }; + u32 pad; + int ret; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP: + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + if (video->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + break; + case V4L2_SEL_TGT_COMPOSE: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + break; + default: + return -EINVAL; + } + subdev = iss_video_remote_subdev(video, &pad); + if (subdev == NULL) + return -EINVAL; + + /* Try the get selection operation first and fallback to get format if not + * implemented. + */ + sdsel.pad = pad; + ret = v4l2_subdev_call(subdev, pad, get_selection, NULL, &sdsel); + if (!ret) + sel->r = sdsel.r; + if (ret != -ENOIOCTLCMD) + return ret; + + format.pad = pad; + format.which = V4L2_SUBDEV_FORMAT_ACTIVE; + ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &format); + if (ret < 0) + return ret == -ENOIOCTLCMD ? -ENOTTY : ret; + + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = format.format.width; + sel->r.height = format.format.height; + + return 0; +} + +static int +iss_video_set_selection(struct file *file, void *fh, struct v4l2_selection *sel) +{ + struct iss_video *video = video_drvdata(file); + struct v4l2_subdev *subdev; + struct v4l2_subdev_selection sdsel = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .target = sel->target, + .flags = sel->flags, + .r = sel->r, + }; + u32 pad; + int ret; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP: + if (video->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + break; + case V4L2_SEL_TGT_COMPOSE: + if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + break; + default: + return -EINVAL; + } + subdev = iss_video_remote_subdev(video, &pad); + if (subdev == NULL) + return -EINVAL; + + sdsel.pad = pad; + mutex_lock(&video->mutex); + ret = v4l2_subdev_call(subdev, pad, set_selection, NULL, &sdsel); + mutex_unlock(&video->mutex); + if (!ret) + sel->r = sdsel.r; + + return ret == -ENOIOCTLCMD ? -ENOTTY : ret; +} + +static int iss_video_get_param(struct file *file, void *fh, struct v4l2_streamparm *a) { struct iss_video_fh *vfh = to_iss_video_fh(fh); @@ -971,6 +1068,8 @@ static const struct v4l2_ioctl_ops iss_video_ioctl_ops = { .vidioc_g_fmt_vid_out = iss_video_get_format, .vidioc_s_fmt_vid_out = iss_video_set_format, .vidioc_try_fmt_vid_out = iss_video_try_format, + .vidioc_g_selection = iss_video_get_selection, + .vidioc_s_selection = iss_video_set_selection, .vidioc_g_parm = iss_video_get_param, .vidioc_s_parm = iss_video_set_param, .vidioc_reqbufs = iss_video_reqbufs, |