V4L/DVB (4223): Add V4L2_CID_MPEG_STREAM_VBI_FMT control

V4L2_CID_MPEG_STREAM_VBI_FMT controls if and how VBI data is embedded in
an MPEG stream. Currently only one format is supported: the format designed
for the ivtv driver. This should be extended with new standard formats
(such as defined for DVB) in the future.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c
index 554813e6f65d..01b22eab5725 100644
--- a/drivers/media/video/cx2341x.c
+++ b/drivers/media/video/cx2341x.c
@@ -43,6 +43,7 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
 const u32 cx2341x_mpeg_ctrls[] = {
         V4L2_CID_MPEG_CLASS,
         V4L2_CID_MPEG_STREAM_TYPE,
+        V4L2_CID_MPEG_STREAM_VBI_FMT,
         V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
         V4L2_CID_MPEG_AUDIO_ENCODING,
         V4L2_CID_MPEG_AUDIO_L2_BITRATE,
@@ -135,6 +136,9 @@ static int cx2341x_get_ctrl(struct cx2341x_mpeg_params *params,
         case V4L2_CID_MPEG_STREAM_TYPE:
                 ctrl->value = params->stream_type;
                 break;
+        case V4L2_CID_MPEG_STREAM_VBI_FMT:
+                ctrl->value = params->stream_vbi_fmt;
+                break;
         case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
                 ctrl->value = params->video_spatial_filter_mode;
                 break;
@@ -257,6 +261,9 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params,
                         params->video_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR;
                 }
                 break;
+        case V4L2_CID_MPEG_STREAM_VBI_FMT:
+                params->stream_vbi_fmt = ctrl->value;
+                break;
         case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
                 params->video_spatial_filter_mode = ctrl->value;
                 break;
@@ -418,6 +425,14 @@ int cx2341x_ctrl_query(struct cx2341x_mpeg_params *params, struct v4l2_queryctrl
                         qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
                 return err;
 
+        case V4L2_CID_MPEG_STREAM_VBI_FMT:
+                if (params->capabilities & CX2341X_CAP_HAS_SLICED_VBI)
+                        return v4l2_ctrl_query_fill_std(qctrl);
+                return cx2341x_ctrl_query_fill(qctrl,
+                                V4L2_MPEG_STREAM_VBI_FMT_NONE,
+                                V4L2_MPEG_STREAM_VBI_FMT_NONE, 1,
+                                V4L2_MPEG_STREAM_VBI_FMT_NONE);
+
         /* CX23415/6 specific */
         case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
                 return cx2341x_ctrl_query_fill(qctrl,
@@ -639,6 +654,7 @@ void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p)
 {
         static struct cx2341x_mpeg_params default_params = {
         /* misc */
+        .capabilities = 0,
         .port = CX2341X_PORT_MEMORY,
         .width = 720,
         .height = 480,
@@ -646,6 +662,7 @@ void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p)
 
         /* stream */
         .stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
+        .stream_vbi_fmt = V4L2_MPEG_STREAM_VBI_FMT_NONE,
 
         /* audio */
         .audio_sampling_freq = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000,