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authorMuralidharan Karicheri <m-karicheri2@ti.com>2009-11-19 12:00:31 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-12-16 00:18:03 -0200
commitb6456c0cfe9d94e6d2bf684e6e6c031fc0b10031 (patch)
treee5742dc96ec8b2a74708787e6cb4ceefcc3e2bac /include/media
parent20d15a200d34cfb7141fb4558895d7d5233db84b (diff)
downloadop-kernel-dev-b6456c0cfe9d94e6d2bf684e6e6c031fc0b10031.zip
op-kernel-dev-b6456c0cfe9d94e6d2bf684e6e6c031fc0b10031.tar.gz
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 <m-karicheri2@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/v4l2-ioctl.h15
-rw-r--r--include/media/v4l2-subdev.h21
2 files changed, 36 insertions, 0 deletions
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 7a4529d..e8ba0f2 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -239,6 +239,21 @@ struct v4l2_ioctl_ops {
int (*vidioc_enum_frameintervals) (struct file *file, void *fh,
struct v4l2_frmivalenum *fival);
+ /* DV Timings IOCTLs */
+ int (*vidioc_enum_dv_presets) (struct file *file, void *fh,
+ struct v4l2_dv_enum_preset *preset);
+
+ int (*vidioc_s_dv_preset) (struct file *file, void *fh,
+ struct v4l2_dv_preset *preset);
+ int (*vidioc_g_dv_preset) (struct file *file, void *fh,
+ struct v4l2_dv_preset *preset);
+ int (*vidioc_query_dv_preset) (struct file *file, void *fh,
+ struct v4l2_dv_preset *qpreset);
+ int (*vidioc_s_dv_timings) (struct file *file, void *fh,
+ struct v4l2_dv_timings *timings);
+ int (*vidioc_g_dv_timings) (struct file *file, void *fh,
+ struct v4l2_dv_timings *timings);
+
/* For other private ioctls */
long (*vidioc_default) (struct file *file, void *fh,
int cmd, void *arg);
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 00bf176..7a3408f 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);
};
/*
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