From b6456c0cfe9d94e6d2bf684e6e6c031fc0b10031 Mon Sep 17 00:00:00 2001 From: Muralidharan Karicheri Date: Thu, 19 Nov 2009 12:00:31 -0300 Subject: V4L/DVB (13571): v4l: Adding Digital Video Timings APIs This adds the above APIs to the v4l2 core. This is based on version v1.2 of the RFC titled "V4L - Support for video timings at the input/output interface" Following new ioctls are added:- - VIDIOC_ENUM_DV_PRESETS - VIDIOC_S_DV_PRESET - VIDIOC_G_DV_PRESET - VIDIOC_QUERY_DV_PRESET - VIDIOC_S_DV_TIMINGS - VIDIOC_G_DV_TIMINGS Please refer to the RFC for the details. This code was tested using vpfe capture driver on TI's DM365. Following is the test configuration used :- Blu-Ray HD DVD source -> TVP7002 -> DM365 (VPFE) ->DDR A draft version of the TVP7002 driver (currently being reviewed in the mailing list) was used that supports V4L2_DV_1080I60 & V4L2_DV_720P60 presets. A loopback video capture application was used for testing these APIs. This calls following IOCTLS :- - verify the new v4l2_input capabilities flag added - Enumerate available presets using VIDIOC_ENUM_DV_PRESETS - Set one of the supported preset using VIDIOC_S_DV_PRESET - Get current preset using VIDIOC_G_DV_PRESET - Detect current preset using VIDIOC_QUERY_DV_PRESET - Using stub functions in tvp7002, verify VIDIOC_S_DV_TIMINGS and VIDIOC_G_DV_TIMINGS ioctls are received at the sub device. - Tested on 64bit platform by Hans Verkuil Signed-off-by: Muralidharan Karicheri Signed-off-by: Hans Verkuil Reviewed-by: Randy Dunlap Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-subdev.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include/media/v4l2-subdev.h') diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 00bf17608453..7a3408f9d0f2 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -217,6 +217,19 @@ struct v4l2_subdev_audio_ops { s_routing: see s_routing in audio_ops, except this version is for video devices. + + s_dv_preset: set dv (Digital Video) preset in the sub device. Similar to + s_std() + + query_dv_preset: query dv preset in the sub device. This is similar to + querystd() + + s_dv_timings(): Set custom dv timings in the sub device. This is used + when sub device is capable of setting detailed timing information + in the hardware to generate/detect the video signal. + + g_dv_timings(): Get custom dv timings in the sub device. + */ struct v4l2_subdev_video_ops { int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config); @@ -240,6 +253,14 @@ struct v4l2_subdev_video_ops { int (*s_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param); int (*enum_framesizes)(struct v4l2_subdev *sd, struct v4l2_frmsizeenum *fsize); int (*enum_frameintervals)(struct v4l2_subdev *sd, struct v4l2_frmivalenum *fival); + int (*s_dv_preset)(struct v4l2_subdev *sd, + struct v4l2_dv_preset *preset); + int (*query_dv_preset)(struct v4l2_subdev *sd, + struct v4l2_dv_preset *preset); + int (*s_dv_timings)(struct v4l2_subdev *sd, + struct v4l2_dv_timings *timings); + int (*g_dv_timings)(struct v4l2_subdev *sd, + struct v4l2_dv_timings *timings); }; /* -- cgit v1.2.3