[media] ivtv: add IVTV_IOC_PASSTHROUGH_MODE

With this private ioctl it is possible to use the ivtv decoder without
requiring the dvb/video.h and dvb/audio.h headers.

Eventually support for those DVB APIs will be dropped from ivtv.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
index cd8032693e6d..37ac32b53baf 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -1625,6 +1625,12 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
                 return ivtv_yuv_prep_frame(itv, args);
         }
 
+        case IVTV_IOC_PASSTHROUGH_MODE:
+                IVTV_DEBUG_IOCTL("IVTV_IOC_PASSTHROUGH_MODE\n");
+                if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
+                        return -EINVAL;
+                return ivtv_passthrough_mode(itv, *(int *)arg != 0);
+
         case VIDEO_GET_PTS: {
                 s64 *pts = arg;
                 s64 frame;
@@ -1786,6 +1792,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio,
 
         if (!valid_prio) {
                 switch (cmd) {
+                case IVTV_IOC_PASSTHROUGH_MODE:
                 case VIDEO_PLAY:
                 case VIDEO_STOP:
                 case VIDEO_FREEZE:
@@ -1811,6 +1818,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio,
         }
 
         case IVTV_IOC_DMA_FRAME:
+        case IVTV_IOC_PASSTHROUGH_MODE:
         case VIDEO_GET_PTS:
         case VIDEO_GET_FRAME_COUNT:
         case VIDEO_GET_EVENT: