diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-video.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 58 |
1 files changed, 38 insertions, 20 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 849b18c94037..ac2bd935927e 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -282,7 +282,7 @@ static void em28xx_copy_vbi(struct em28xx *dev, { void *startwrite, *startread; int offset; - int bytesperline = 720; + int bytesperline = dev->vbi_width; if (dev == NULL) { em28xx_isocdbg("dev is null\n"); @@ -323,8 +323,8 @@ static void em28xx_copy_vbi(struct em28xx *dev, /* Make sure the bottom field populates the second half of the frame */ if (buf->top_field == 0) { - startwrite += bytesperline * 0x0c; - offset += bytesperline * 0x0c; + startwrite += bytesperline * dev->vbi_height; + offset += bytesperline * dev->vbi_height; } memcpy(startwrite, startread, len); @@ -578,8 +578,7 @@ static inline int em28xx_isoc_copy_vbi(struct em28xx *dev, struct urb *urb) dev->cur_field = p[2]; } - /* FIXME: get rid of hard-coded value */ - vbi_size = 720 * 0x0c; + vbi_size = dev->vbi_width * dev->vbi_height; if (dev->capture_type == 0) { if (dev->vbi_read >= vbi_size) { @@ -1850,18 +1849,27 @@ static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv, static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *format) { - format->fmt.vbi.samples_per_line = 720; + struct em28xx_fh *fh = priv; + struct em28xx *dev = fh->dev; + + format->fmt.vbi.samples_per_line = dev->vbi_width; format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; format->fmt.vbi.offset = 0; format->fmt.vbi.flags = 0; + format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; + format->fmt.vbi.count[0] = dev->vbi_height; + format->fmt.vbi.count[1] = dev->vbi_height; /* Varies by video standard (NTSC, PAL, etc.) */ - /* FIXME: hard-coded for NTSC support */ - format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; /* FIXME: ??? */ - format->fmt.vbi.count[0] = 12; - format->fmt.vbi.count[1] = 12; - format->fmt.vbi.start[0] = 10; - format->fmt.vbi.start[1] = 273; + if (dev->norm & V4L2_STD_525_60) { + /* NTSC */ + format->fmt.vbi.start[0] = 10; + format->fmt.vbi.start[1] = 273; + } else if (dev->norm & V4L2_STD_625_50) { + /* PAL */ + format->fmt.vbi.start[0] = 6; + format->fmt.vbi.start[1] = 318; + } return 0; } @@ -1869,18 +1877,27 @@ static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *format) { - format->fmt.vbi.samples_per_line = 720; + struct em28xx_fh *fh = priv; + struct em28xx *dev = fh->dev; + + format->fmt.vbi.samples_per_line = dev->vbi_width; format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; format->fmt.vbi.offset = 0; format->fmt.vbi.flags = 0; + format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; + format->fmt.vbi.count[0] = dev->vbi_height; + format->fmt.vbi.count[1] = dev->vbi_height; /* Varies by video standard (NTSC, PAL, etc.) */ - /* FIXME: hard-coded for NTSC support */ - format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; /* FIXME: ??? */ - format->fmt.vbi.count[0] = 12; - format->fmt.vbi.count[1] = 12; - format->fmt.vbi.start[0] = 10; - format->fmt.vbi.start[1] = 273; + if (dev->norm & V4L2_STD_525_60) { + /* NTSC */ + format->fmt.vbi.start[0] = 10; + format->fmt.vbi.start[1] = 273; + } else if (dev->norm & V4L2_STD_625_50) { + /* PAL */ + format->fmt.vbi.start[0] = 6; + format->fmt.vbi.start[1] = 318; + } return 0; } @@ -1922,7 +1939,8 @@ static int vidioc_querybuf(struct file *file, void *priv, At a minimum, it causes a crash in zvbi since it does a memcpy based on the source buffer length */ int result = videobuf_querybuf(&fh->vb_vbiq, b); - b->length = 17280; + b->length = dev->vbi_width * dev->vbi_height * 2; + return result; } } |
