From: Hans Verkuil <hans.verk...@cisco.com>
- map overlay format values to the supported ranges
- set colorspace
- zero priv field
- fix cliplist handling
- fix field handling
- initialize ovbuf values
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/media/pci/saa7134/saa7134-video.c | 74 ++++++++++++++++++++---------
1 file changed, 52 insertions(+), 22 deletions(-)
diff --git a/drivers/media/pci/saa7134/saa7134-video.c
b/drivers/media/pci/saa7134/saa7134-video.c
index 9465a1d..555e62c 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -825,20 +825,22 @@ static int setup_clipping(struct saa7134_dev *dev, struct
v4l2_clip *clips,
return 0;
}
-static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win)
+static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win,
bool try)
{
enum v4l2_field field;
int maxw, maxh;
- if (NULL == dev->ovbuf.base)
+ if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
return -EINVAL;
- if (NULL == dev->ovfmt)
- return -EINVAL;
- if (win->w.width < 48 || win->w.height < 32)
- return -EINVAL;
- if (win->clipcount > 2048)
- return -EINVAL;
-
+ if (win->w.width < 48)
+ win->w.width = 48;
+ if (win->w.height < 32)
+ win->w.height = 32;
+ if (win->clipcount > 8)
+ win->clipcount = 8;
+
+ win->chromakey = 0;
+ win->global_alpha = 0;
field = win->field;
maxw = dev->crop_current.width;
maxh = dev->crop_current.height;
@@ -853,10 +855,9 @@ static int verify_preview(struct saa7134_dev *dev, struct
v4l2_window *win)
case V4L2_FIELD_BOTTOM:
maxh = maxh / 2;
break;
- case V4L2_FIELD_INTERLACED:
- break;
default:
- return -EINVAL;
+ field = V4L2_FIELD_INTERLACED;
+ break;
}
win->field = field;
@@ -872,7 +873,7 @@ static int start_preview(struct saa7134_dev *dev, struct
saa7134_fh *fh)
unsigned long base,control,bpl;
int err;
- err = verify_preview(dev, &dev->win);
+ err = verify_preview(dev, &dev->win, false);
if (0 != err)
return err;
@@ -1546,6 +1547,8 @@ static int saa7134_g_fmt_vid_cap(struct file *file, void
*priv,
(f->fmt.pix.width * dev->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;
}
@@ -1554,14 +1557,32 @@ static int saa7134_g_fmt_vid_overlay(struct file *file,
void *priv,
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
+ struct v4l2_clip *clips = f->fmt.win.clips;
+ u32 clipcount = f->fmt.win.clipcount;
+ int err = 0;
+ int i;
if (saa7134_no_overlay > 0) {
printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
+ mutex_lock(&dev->lock);
f->fmt.win = dev->win;
+ f->fmt.win.clips = clips;
+ if (clips == NULL)
+ clipcount = 0;
+ if (dev->nclips < clipcount)
+ clipcount = dev->nclips;
+ f->fmt.win.clipcount = clipcount;
+
+ for (i = 0; !err && i < clipcount; i++) {
+ if (copy_to_user(&f->fmt.win.clips[i].c, &dev->clips[i].c,
+ sizeof(struct v4l2_rect)))
+ err = -EFAULT;
+ }
+ mutex_unlock(&dev->lock);
- return 0;
+ return err;
}
static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
@@ -1591,10 +1612,9 @@ static int saa7134_try_fmt_vid_cap(struct file *file,
void *priv,
case V4L2_FIELD_BOTTOM:
maxh = maxh / 2;
break;
- case V4L2_FIELD_INTERLACED:
- break;
default:
- return -EINVAL;
+ field = V4L2_FIELD_INTERLACED;
+ break;
}
f->fmt.pix.field = field;
@@ -1611,6 +1631,8 @@ static int saa7134_try_fmt_vid_cap(struct file *file,
void *priv,
(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;
}
@@ -1626,7 +1648,9 @@ static int saa7134_try_fmt_vid_overlay(struct file *file,
void *priv,
return -EINVAL;
}
- return verify_preview(dev, &f->fmt.win);
+ if (f->fmt.win.clips == NULL)
+ f->fmt.win.clipcount = 0;
+ return verify_preview(dev, &f->fmt.win, true);
}
static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
@@ -1659,7 +1683,9 @@ static int saa7134_s_fmt_vid_overlay(struct file *file,
void *priv,
printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
return -EINVAL;
}
- err = verify_preview(dev, &f->fmt.win);
+ if (f->fmt.win.clips == NULL)
+ f->fmt.win.clipcount = 0;
+ err = verify_preview(dev, &f->fmt.win, true);
if (0 != err)
return err;
@@ -1668,9 +1694,6 @@ static int saa7134_s_fmt_vid_overlay(struct file *file,
void *priv,
dev->win = f->fmt.win;
dev->nclips = f->fmt.win.clipcount;
- if (dev->nclips > 8)
- dev->nclips = 8;
-
if (copy_from_user(dev->clips, f->fmt.win.clips,
sizeof(struct v4l2_clip) * dev->nclips)) {
mutex_unlock(&dev->lock);
@@ -2441,6 +2464,13 @@ int saa7134_video_init1(struct saa7134_dev *dev)
dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
dev->width = 720;
dev->height = 576;
+ dev->win.w.width = dev->width;
+ dev->win.w.height = dev->height;
+ dev->win.field = V4L2_FIELD_INTERLACED;
+ dev->ovbuf.fmt.width = dev->width;
+ dev->ovbuf.fmt.height = dev->height;
+ dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
+ dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
if (saa7134_boards[dev->board].video_out)
saa7134_videoport_init(dev);
--
1.7.10.4
--
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