diff options
Diffstat (limited to 'drivers/media/video/bttv-driver.c')
| -rw-r--r-- | drivers/media/video/bttv-driver.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c index 51a0f6d..eee9322 100644 --- a/drivers/media/video/bttv-driver.c +++ b/drivers/media/video/bttv-driver.c @@ -1,5 +1,5 @@ /* - $Id: bttv-driver.c,v 1.42 2005/07/05 17:37:35 nsh Exp $ + $Id: bttv-driver.c,v 1.52 2005/08/04 00:55:16 mchehab Exp $ bttv - Bt848 frame grabber driver @@ -80,6 +80,7 @@ static unsigned int irq_iswitch = 0; static unsigned int uv_ratio = 50; static unsigned int full_luma_range = 0; static unsigned int coring = 0; +extern int no_overlay; /* API features (turn on/off stuff for testing) */ static unsigned int v4l2 = 1; @@ -2151,6 +2152,10 @@ static int bttv_s_fmt(struct bttv_fh *fh, struct bttv *btv, return 0; } case V4L2_BUF_TYPE_VIDEO_OVERLAY: + if (no_overlay > 0) { + printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); + return -EINVAL; + } return setup_window(fh, btv, &f->fmt.win, 1); case V4L2_BUF_TYPE_VBI_CAPTURE: retval = bttv_switch_type(fh,f->type); @@ -2224,9 +2229,11 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file, /* others */ cap->type = VID_TYPE_CAPTURE| VID_TYPE_TUNER| - VID_TYPE_OVERLAY| VID_TYPE_CLIPPING| VID_TYPE_SCALES; + if (no_overlay <= 0) + cap->type |= VID_TYPE_OVERLAY; + cap->maxwidth = bttv_tvnorms[btv->tvnorm].swidth; cap->maxheight = bttv_tvnorms[btv->tvnorm].sheight; cap->minwidth = 48; @@ -2302,6 +2309,11 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file, struct video_window *win = arg; struct v4l2_window w2; + if (no_overlay > 0) { + printk ("VIDIOCSWIN: no_overlay\n"); + return -EINVAL; + } + w2.field = V4L2_FIELD_ANY; w2.w.left = win->x; w2.w.top = win->y; @@ -2577,10 +2589,12 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file, cap->version = BTTV_VERSION_CODE; cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; + if (no_overlay <= 0) + cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY; + if (bttv_tvcards[btv->c.type].tuner != UNSET && bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT) cap->capabilities |= V4L2_CAP_TUNER; @@ -3076,7 +3090,7 @@ static struct file_operations bttv_fops = static struct video_device bttv_video_template = { .name = "UNSET", - .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_OVERLAY| + .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER| VID_TYPE_CLIPPING|VID_TYPE_SCALES, .hardware = VID_HARDWARE_BT848, .fops = &bttv_fops, @@ -3756,6 +3770,12 @@ static void bttv_unregister_video(struct bttv *btv) /* register video4linux devices */ static int __devinit bttv_register_video(struct bttv *btv) { + if (no_overlay <= 0) { + bttv_video_template.type |= VID_TYPE_OVERLAY; + } else { + printk("bttv: Overlay support disabled.\n"); + } + /* video */ btv->video_dev = vdev_init(btv, &bttv_video_template, "video"); if (NULL == btv->video_dev) @@ -3869,11 +3889,6 @@ static int __devinit bttv_probe(struct pci_dev *dev, pci_set_master(dev); pci_set_command(dev); pci_set_drvdata(dev,btv); - if (!pci_dma_supported(dev,0xffffffff)) { - printk("bttv%d: Oops: no 32bit PCI DMA ???\n", btv->c.nr); - result = -EIO; - goto fail1; - } pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision); pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); |
