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path: root/drivers/media/video/videodev.c
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Diffstat (limited to 'drivers/media/video/videodev.c')
-rw-r--r--drivers/media/video/videodev.c50
1 files changed, 31 insertions, 19 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 5263b50463e..b876aca69c7 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -433,13 +433,43 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
int ret = -EINVAL;
if ( (vfd->debug & V4L2_DEBUG_IOCTL) &&
- !(vfd->debug | V4L2_DEBUG_IOCTL_ARG)) {
+ !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) {
v4l_print_ioctl(vfd->name, cmd);
}
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+ /***********************************************************
+ Handles calls to the obsoleted V4L1 API
+ Due to the nature of VIDIOCGMBUF, each driver that supports
+ V4L1 should implement its own handler for this ioctl.
+ ***********************************************************/
+
+ /* --- streaming capture ------------------------------------- */
+ if (cmd == VIDIOCGMBUF) {
+ struct video_mbuf *p=arg;
+
+ memset(p,0,sizeof(p));
+
+ if (!vfd->vidiocgmbuf)
+ return ret;
+ ret=vfd->vidiocgmbuf(file, fh, p);
+ if (!ret)
+ dbgarg (cmd, "size=%d, frames=%d, offsets=0x%08lx\n",
+ p->size, p->frames,
+ (unsigned long)p->offsets);
+ return ret;
+ }
+
+ /********************************************************
+ All other V4L1 calls are handled by v4l1_compat module.
+ Those calls will be translated into V4L2 calls, and
+ __video_do_ioctl will be called again, with one or more
+ V4L2 ioctls.
+ ********************************************************/
if (_IOC_TYPE(cmd)=='v')
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
__video_do_ioctl);
+#endif
switch(cmd) {
/* --- capabilities ------------------------------------------ */
@@ -791,24 +821,6 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
ret=vfd->vidioc_overlay(file, fh, *i);
break;
}
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
- /* --- streaming capture ------------------------------------- */
- case VIDIOCGMBUF:
- {
- struct video_mbuf *p=arg;
-
- memset(p,0,sizeof(p));
-
- if (!vfd->vidiocgmbuf)
- break;
- ret=vfd->vidiocgmbuf(file, fh, p);
- if (!ret)
- dbgarg (cmd, "size=%d, frames=%d, offsets=0x%08lx\n",
- p->size, p->frames,
- (unsigned long)p->offsets);
- break;
- }
-#endif
case VIDIOC_G_FBUF:
{
struct v4l2_framebuffer *p=arg;