diff options
Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-driver.c')
| -rw-r--r-- | drivers/media/pci/bt8xx/bttv-driver.c | 44 |
1 files changed, 25 insertions, 19 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index 0fdaef225c9e..b5100da854c0 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -2111,22 +2111,33 @@ limit_scaled_size_lock (struct bttv_fh * fh, may also adjust the current cropping parameters to get closer to the desired window size. */ static int -verify_window_lock (struct bttv_fh * fh, - struct v4l2_window * win, - int adjust_size, - int adjust_crop) +verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win, + int adjust_size, int adjust_crop) { enum v4l2_field field; unsigned int width_mask; int rc; - if (win->w.width < 48 || win->w.height < 32) - return -EINVAL; + if (win->w.width < 48) + win->w.width = 48; + if (win->w.height < 32) + win->w.height = 32; if (win->clipcount > 2048) - return -EINVAL; + win->clipcount = 2048; + win->chromakey = 0; + win->global_alpha = 0; field = win->field; + switch (field) { + case V4L2_FIELD_TOP: + case V4L2_FIELD_BOTTOM: + case V4L2_FIELD_INTERLACED: + break; + default: + field = V4L2_FIELD_ANY; + break; + } if (V4L2_FIELD_ANY == field) { __s32 height2; @@ -2135,18 +2146,11 @@ verify_window_lock (struct bttv_fh * fh, ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; } - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_INTERLACED: - break; - default: - return -EINVAL; - } + win->field = field; - /* 4-byte alignment. */ if (NULL == fh->ovfmt) return -EINVAL; + /* 4-byte alignment. */ width_mask = ~0; switch (fh->ovfmt->depth) { case 8: @@ -2171,8 +2175,6 @@ verify_window_lock (struct bttv_fh * fh, adjust_size, adjust_crop); if (0 != rc) return rc; - - win->field = field; return 0; } @@ -2407,9 +2409,10 @@ static int bttv_try_fmt_vid_overlay(struct file *file, void *priv, { struct bttv_fh *fh = priv; - return verify_window_lock(fh, &f->fmt.win, + verify_window_lock(fh, &f->fmt.win, /* adjust_size */ 1, /* adjust_crop */ 0); + return 0; } static int bttv_s_fmt_vid_cap(struct file *file, void *priv, @@ -4146,6 +4149,9 @@ static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); btv->init.width = 320; btv->init.height = 240; + btv->init.ov.w.width = 320; + btv->init.ov.w.height = 240; + btv->init.ov.field = V4L2_FIELD_INTERLACED; btv->input = 0; v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops, |