diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 79 |
1 files changed, 49 insertions, 30 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index b96a138d9d0..702fe8d6742 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -746,13 +746,41 @@ 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) @@ -760,18 +788,8 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 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; @@ -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); @@ -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; @@ -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); @@ -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 */ |