diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/pci/cx25821/cx25821-video.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c index dca339183672..70e33b125969 100644 --- a/drivers/media/pci/cx25821/cx25821-video.c +++ b/drivers/media/pci/cx25821/cx25821-video.c @@ -851,6 +851,48 @@ static int cx25821_vidioc_s_output(struct file *file, void *priv, unsigned int o return o ? -EINVAL : 0; } +static int cx25821_vidioc_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct cx25821_channel *chan = video_drvdata(file); + struct cx25821_dev *dev = chan->dev; + const struct cx25821_fmt *fmt; + + fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat); + if (NULL == fmt) + return -EINVAL; + f->fmt.pix.width = 720; + f->fmt.pix.height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480; + f->fmt.pix.field = V4L2_FIELD_INTERLACED; + f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + f->fmt.pix.priv = 0; + return 0; +} + +static int vidioc_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct cx25821_channel *chan = video_drvdata(file); + int err; + + err = cx25821_vidioc_try_fmt_vid_out(file, priv, f); + + if (0 != err) + return err; + + chan->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat); + chan->vidq.field = f->fmt.pix.field; + chan->width = f->fmt.pix.width; + chan->height = f->fmt.pix.height; + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P) + chan->pixel_formats = PIXEL_FRMT_411; + else + chan->pixel_formats = PIXEL_FRMT_422; + return 0; +} + static const struct v4l2_ctrl_ops cx25821_ctrl_ops = { .s_ctrl = cx25821_s_ctrl, }; @@ -905,6 +947,10 @@ static const struct v4l2_file_operations video_out_fops = { static const struct v4l2_ioctl_ops video_out_ioctl_ops = { .vidioc_querycap = cx25821_vidioc_querycap, + .vidioc_enum_fmt_vid_out = cx25821_vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_out = cx25821_vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_out = cx25821_vidioc_try_fmt_vid_out, + .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, .vidioc_g_std = cx25821_vidioc_g_std, .vidioc_s_std = cx25821_vidioc_s_std, .vidioc_enum_output = cx25821_vidioc_enum_output, |