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yaml
---
r: 154948
b: refs/heads/master
c: ed5f143
h: refs/heads/master
v: v3
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Mauro Carvalho Chehab committed Jul 5, 2009
1 parent 457db84 commit 583b40e
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Showing 2 changed files with 50 additions and 31 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f797608cc4f19b44b83ec39c87e14af6fa07826d
refs/heads/master: ed5f1431ebeeba8cc6739e9cd905a7895b66184c
79 changes: 49 additions & 30 deletions trunk/drivers/media/video/em28xx/em28xx-video.c
Original file line number Diff line number Diff line change
Expand Up @@ -746,32 +746,50 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
return 0;
}

static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc,
unsigned width, unsigned height)
{
struct em28xx_fmt *fmt;

/* FIXME: This is the only supported fmt */
if (dev->board.is_27xx) {
fourcc = V4L2_PIX_FMT_RGB565;
width = 640;
height = 480;
}

fmt = format_by_fourcc(fourcc);
if (!fmt)
return -EINVAL;

dev->format = fmt;
dev->width = width;
dev->height = height;

/* set new image size */
get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);

em28xx_set_alternate(dev);
em28xx_resolution_set(dev);

return 0;
}

static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
int rc;
struct em28xx_fmt *fmt;

rc = check_dev(dev);
if (rc < 0)
return rc;

mutex_lock(&dev->lock);

/* FIXME: This is the only supported fmt */
if (dev->board.is_27xx)
f->fmt.pix.pixelformat = V4L2_PIX_FMT_RGB565;

vidioc_try_fmt_vid_cap(file, priv, f);

fmt = format_by_fourcc(f->fmt.pix.pixelformat);
if (!fmt) {
rc = -EINVAL;
goto out;
}

if (videobuf_queue_is_busy(&fh->vb_vidq)) {
em28xx_errdev("%s queue busy\n", __func__);
rc = -EBUSY;
Expand All @@ -784,16 +802,8 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
goto out;
}

/* set new image size */
dev->width = f->fmt.pix.width;
dev->height = f->fmt.pix.height;
dev->format = fmt;
get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);

em28xx_set_alternate(dev);
em28xx_resolution_set(dev);

rc = 0;
rc = em28xx_set_video_format(dev, f->fmt.pix.pixelformat,
f->fmt.pix.width, f->fmt.pix.height);

out:
mutex_unlock(&dev->lock);
Expand Down Expand Up @@ -1377,9 +1387,24 @@ static int vidioc_querycap(struct file *file, void *priv,
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;

if (unlikely(f->index >= ARRAY_SIZE(format)))
return -EINVAL;

if (dev->board.is_27xx) {
struct em28xx_fmt *fmt;
if (f->index)
return -EINVAL;

f->pixelformat = V4L2_PIX_FMT_RGB565;
fmt = format_by_fourcc(f->pixelformat);
strlcpy(f->description, fmt->name, sizeof(f->description));

return 0;
}

strlcpy(f->description, format[f->index].name, sizeof(f->description));
f->pixelformat = format[f->index].fourcc;

Expand Down Expand Up @@ -1633,11 +1658,6 @@ static int em28xx_v4l2_open(struct file *filp)
filp->private_data = fh;

if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
dev->width = norm_maxw(dev);
dev->height = norm_maxh(dev);
dev->hscale = 0;
dev->vscale = 0;

em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
em28xx_set_alternate(dev);
em28xx_resolution_set(dev);
Expand Down Expand Up @@ -1979,15 +1999,14 @@ int em28xx_register_analog_devices(struct em28xx *dev)

/* set default norm */
dev->norm = em28xx_video_template.current_norm;
dev->width = norm_maxw(dev);
dev->height = norm_maxh(dev);
dev->interlaced = EM28XX_INTERLACED_DEFAULT;
dev->hscale = 0;
dev->vscale = 0;
dev->ctl_input = 0;

/* Analog specific initialization */
dev->format = &format[0];
em28xx_set_video_format(dev, format[0].fourcc,
norm_maxw(dev), norm_maxh(dev));

video_mux(dev, dev->ctl_input);

/* Audio defaults */
Expand Down

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