diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-subdev.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-subdev.c | 125 |
1 files changed, 79 insertions, 46 deletions
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index 058c1a6e8392..b4d235c13fbf 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -126,6 +126,57 @@ static int subdev_close(struct file *file) return 0; } +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) +static int check_format(struct v4l2_subdev *sd, + struct v4l2_subdev_format *format) +{ + if (format->which != V4L2_SUBDEV_FORMAT_TRY && + format->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + if (format->pad >= sd->entity.num_pads) + return -EINVAL; + + return 0; +} + +static int check_crop(struct v4l2_subdev *sd, struct v4l2_subdev_crop *crop) +{ + if (crop->which != V4L2_SUBDEV_FORMAT_TRY && + crop->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + if (crop->pad >= sd->entity.num_pads) + return -EINVAL; + + return 0; +} + +static int check_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_selection *sel) +{ + if (sel->which != V4L2_SUBDEV_FORMAT_TRY && + sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + if (sel->pad >= sd->entity.num_pads) + return -EINVAL; + + return 0; +} + +static int check_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid) +{ + if (edid->pad >= sd->entity.num_pads) + return -EINVAL; + + if (edid->blocks && edid->edid == NULL) + return -EINVAL; + + return 0; +} +#endif + static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct video_device *vdev = video_devdata(file); @@ -133,12 +184,16 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) struct v4l2_fh *vfh = file->private_data; #if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) struct v4l2_subdev_fh *subdev_fh = to_v4l2_subdev_fh(vfh); + int rval; #endif switch (cmd) { case VIDIOC_QUERYCTRL: return v4l2_queryctrl(vfh->ctrl_handler, arg); + case VIDIOC_QUERY_EXT_CTRL: + return v4l2_query_ext_ctrl(vfh->ctrl_handler, arg); + case VIDIOC_QUERYMENU: return v4l2_querymenu(vfh->ctrl_handler, arg); @@ -203,12 +258,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_SUBDEV_G_FMT: { struct v4l2_subdev_format *format = arg; - if (format->which != V4L2_SUBDEV_FORMAT_TRY && - format->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - - if (format->pad >= sd->entity.num_pads) - return -EINVAL; + rval = check_format(sd, format); + if (rval) + return rval; return v4l2_subdev_call(sd, pad, get_fmt, subdev_fh, format); } @@ -216,12 +268,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_SUBDEV_S_FMT: { struct v4l2_subdev_format *format = arg; - if (format->which != V4L2_SUBDEV_FORMAT_TRY && - format->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - - if (format->pad >= sd->entity.num_pads) - return -EINVAL; + rval = check_format(sd, format); + if (rval) + return rval; return v4l2_subdev_call(sd, pad, set_fmt, subdev_fh, format); } @@ -229,14 +278,10 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_SUBDEV_G_CROP: { struct v4l2_subdev_crop *crop = arg; struct v4l2_subdev_selection sel; - int rval; - - if (crop->which != V4L2_SUBDEV_FORMAT_TRY && - crop->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - if (crop->pad >= sd->entity.num_pads) - return -EINVAL; + rval = check_crop(sd, crop); + if (rval) + return rval; rval = v4l2_subdev_call(sd, pad, get_crop, subdev_fh, crop); if (rval != -ENOIOCTLCMD) @@ -258,14 +303,10 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_SUBDEV_S_CROP: { struct v4l2_subdev_crop *crop = arg; struct v4l2_subdev_selection sel; - int rval; - - if (crop->which != V4L2_SUBDEV_FORMAT_TRY && - crop->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - if (crop->pad >= sd->entity.num_pads) - return -EINVAL; + rval = check_crop(sd, crop); + if (rval) + return rval; rval = v4l2_subdev_call(sd, pad, set_crop, subdev_fh, crop); if (rval != -ENOIOCTLCMD) @@ -336,12 +377,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_SUBDEV_G_SELECTION: { struct v4l2_subdev_selection *sel = arg; - if (sel->which != V4L2_SUBDEV_FORMAT_TRY && - sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - - if (sel->pad >= sd->entity.num_pads) - return -EINVAL; + rval = check_selection(sd, sel); + if (rval) + return rval; return v4l2_subdev_call( sd, pad, get_selection, subdev_fh, sel); @@ -350,12 +388,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_SUBDEV_S_SELECTION: { struct v4l2_subdev_selection *sel = arg; - if (sel->which != V4L2_SUBDEV_FORMAT_TRY && - sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - - if (sel->pad >= sd->entity.num_pads) - return -EINVAL; + rval = check_selection(sd, sel); + if (rval) + return rval; return v4l2_subdev_call( sd, pad, set_selection, subdev_fh, sel); @@ -364,10 +399,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_G_EDID: { struct v4l2_subdev_edid *edid = arg; - if (edid->pad >= sd->entity.num_pads) - return -EINVAL; - if (edid->blocks && edid->edid == NULL) - return -EINVAL; + rval = check_edid(sd, edid); + if (rval) + return rval; return v4l2_subdev_call(sd, pad, get_edid, edid); } @@ -375,10 +409,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_S_EDID: { struct v4l2_subdev_edid *edid = arg; - if (edid->pad >= sd->entity.num_pads) - return -EINVAL; - if (edid->blocks && edid->edid == NULL) - return -EINVAL; + rval = check_edid(sd, edid); + if (rval) + return rval; return v4l2_subdev_call(sd, pad, set_edid, edid); } |
