Reviewed-by: Hans Verkuil <hverk...@xs4all.nl>

On Monday 22 February 2010 16:51:34 Sakari Ailus wrote:
> This patch adds a set of new ioctls to the V4L2 API. The ioctls conform to
> V4L2 Events RFC version 2.3:
> 
> <URL:http://www.spinics.net/lists/linux-media/msg12033.html>
> 
> Signed-off-by: Sakari Ailus <sakari.ai...@maxwell.research.nokia.com>
> ---
>  drivers/media/video/v4l2-compat-ioctl32.c |    3 +++
>  drivers/media/video/v4l2-ioctl.c          |    3 +++
>  include/linux/videodev2.h                 |   26 ++++++++++++++++++++++++++
>  3 files changed, 32 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/media/video/v4l2-compat-ioctl32.c 
> b/drivers/media/video/v4l2-compat-ioctl32.c
> index f77f84b..9004a5f 100644
> --- a/drivers/media/video/v4l2-compat-ioctl32.c
> +++ b/drivers/media/video/v4l2-compat-ioctl32.c
> @@ -1086,6 +1086,9 @@ long v4l2_compat_ioctl32(struct file *file, unsigned 
> int cmd, unsigned long arg)
>       case VIDIOC_QUERY_DV_PRESET:
>       case VIDIOC_S_DV_TIMINGS:
>       case VIDIOC_G_DV_TIMINGS:
> +     case VIDIOC_DQEVENT:
> +     case VIDIOC_SUBSCRIBE_EVENT:
> +     case VIDIOC_UNSUBSCRIBE_EVENT:
>               ret = do_video_ioctl(file, cmd, arg);
>               break;
>  
> diff --git a/drivers/media/video/v4l2-ioctl.c 
> b/drivers/media/video/v4l2-ioctl.c
> index 4b11257..34c7d6e 100644
> --- a/drivers/media/video/v4l2-ioctl.c
> +++ b/drivers/media/video/v4l2-ioctl.c
> @@ -290,6 +290,9 @@ static const char *v4l2_ioctls[] = {
>       [_IOC_NR(VIDIOC_QUERY_DV_PRESET)]  = "VIDIOC_QUERY_DV_PRESET",
>       [_IOC_NR(VIDIOC_S_DV_TIMINGS)]     = "VIDIOC_S_DV_TIMINGS",
>       [_IOC_NR(VIDIOC_G_DV_TIMINGS)]     = "VIDIOC_G_DV_TIMINGS",
> +     [_IOC_NR(VIDIOC_DQEVENT)]          = "VIDIOC_DQEVENT",
> +     [_IOC_NR(VIDIOC_SUBSCRIBE_EVENT)]  = "VIDIOC_SUBSCRIBE_EVENT",
> +     [_IOC_NR(VIDIOC_UNSUBSCRIBE_EVENT)] = "VIDIOC_UNSUBSCRIBE_EVENT",
>  };
>  #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
>  
> diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
> index 3c26560..f7237fc 100644
> --- a/include/linux/videodev2.h
> +++ b/include/linux/videodev2.h
> @@ -1622,6 +1622,29 @@ struct v4l2_streamparm {
>  };
>  
>  /*
> + *   E V E N T S
> + */
> +
> +struct v4l2_event {
> +     __u32                           type;
> +     union {
> +             __u8                    data[64];
> +     } u;
> +     __u32                           pending;
> +     __u32                           sequence;
> +     struct timespec                 timestamp;
> +     __u32                           reserved[9];
> +};
> +
> +struct v4l2_event_subscription {
> +     __u32                           type;
> +     __u32                           reserved[7];
> +};
> +
> +#define V4L2_EVENT_ALL                               0
> +#define V4L2_EVENT_PRIVATE_START             0x08000000
> +
> +/*
>   *   A D V A N C E D   D E B U G G I N G
>   *
>   *   NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
> @@ -1743,6 +1766,9 @@ struct v4l2_dbg_chip_ident {
>  #define      VIDIOC_QUERY_DV_PRESET  _IOR('V',  86, struct v4l2_dv_preset)
>  #define      VIDIOC_S_DV_TIMINGS     _IOWR('V', 87, struct v4l2_dv_timings)
>  #define      VIDIOC_G_DV_TIMINGS     _IOWR('V', 88, struct v4l2_dv_timings)
> +#define      VIDIOC_DQEVENT           _IOR('V', 83, struct v4l2_event)
> +#define      VIDIOC_SUBSCRIBE_EVENT   _IOW('V', 84, struct 
> v4l2_event_subscription)
> +#define      VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 85, struct 
> v4l2_event_subscription)
>  
>  /* Reminder: when adding new ioctls please add support for them to
>     drivers/media/video/v4l2-compat-ioctl32.c as well! */
> 

-- 
Hans Verkuil - video4linux developer - sponsored by TANDBERG
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