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-rw-r--r--drivers/media/video/saa7134/saa7134-core.c13
-rw-r--r--drivers/media/video/saa7134/saa7134-video.c27
-rw-r--r--drivers/media/video/saa7134/saa7134.h1
3 files changed, 35 insertions, 6 deletions
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index be85e0b..58e568d 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -66,8 +66,8 @@ static unsigned int latency = UNSET;
module_param(latency, int, 0444);
MODULE_PARM_DESC(latency,"pci latency timer");
-static int no_overlay=-1;
-module_param(no_overlay, int, 0444);
+int saa7134_no_overlay=-1;
+module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
" [some VIA/SIS chipsets are known to have problem with overlay]");
@@ -843,11 +843,11 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
printk(KERN_INFO "%s: quirk: this driver and your "
"chipset may not work together"
" in overlay mode.\n",dev->name);
- if (!no_overlay) {
+ if (!saa7134_no_overlay) {
printk(KERN_INFO "%s: quirk: overlay "
"mode will be disabled.\n",
dev->name);
- no_overlay = 1;
+ saa7134_no_overlay = 1;
} else {
printk(KERN_INFO "%s: quirk: overlay "
"mode will be forced. Use this"
@@ -957,6 +957,11 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
v4l2_prio_init(&dev->prio);
/* register v4l devices */
+ if (saa7134_no_overlay <= 0) {
+ saa7134_video_template.type |= VID_TYPE_OVERLAY;
+ } else {
+ printk("bttv: Overlay support disabled.\n");
+ }
dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
video_nr[dev->nr]);
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index 600c3c7..57a11e7 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -1462,6 +1462,10 @@ static int saa7134_g_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
f->fmt.pix.height * f->fmt.pix.bytesperline;
return 0;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (saa7134_no_overlay > 0) {
+ printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
+ return -EINVAL;
+ }
f->fmt.win = fh->win;
return 0;
case V4L2_BUF_TYPE_VBI_CAPTURE:
@@ -1526,6 +1530,10 @@ static int saa7134_try_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
return 0;
}
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (saa7134_no_overlay > 0) {
+ printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
+ return -EINVAL;
+ }
err = verify_preview(dev,&f->fmt.win);
if (0 != err)
return err;
@@ -1556,6 +1564,10 @@ static int saa7134_s_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
fh->cap.field = f->fmt.pix.field;
return 0;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (saa7134_no_overlay > 0) {
+ printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
+ return -EINVAL;
+ }
err = verify_preview(dev,&f->fmt.win);
if (0 != err)
return err;
@@ -1715,11 +1727,13 @@ static int video_do_ioctl(struct inode *inode, struct file *file,
cap->version = SAA7134_VERSION_CODE;
cap->capabilities =
V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_VIDEO_OVERLAY |
V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING |
V4L2_CAP_TUNER;
+ if (saa7134_no_overlay <= 0) {
+ cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
+ }
if ((tuner_type == TUNER_ABSENT) || (tuner_type == UNSET))
cap->capabilities &= ~V4L2_CAP_TUNER;
@@ -1970,6 +1984,10 @@ static int video_do_ioctl(struct inode *inode, struct file *file,
switch (type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (saa7134_no_overlay > 0) {
+ printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
+ return -EINVAL;
+ }
if (index >= FORMATS)
return -EINVAL;
if (f->type == V4L2_BUF_TYPE_VIDEO_OVERLAY &&
@@ -2030,6 +2048,11 @@ static int video_do_ioctl(struct inode *inode, struct file *file,
int *on = arg;
if (*on) {
+ if (saa7134_no_overlay > 0) {
+ printk ("no_overlay\n");
+ return -EINVAL;
+ }
+
if (!res_get(dev,fh,RESOURCE_OVERLAY))
return -EBUSY;
spin_lock_irqsave(&dev->slock,flags);
@@ -2281,7 +2304,7 @@ static struct file_operations radio_fops =
struct video_device saa7134_video_template =
{
.name = "saa7134-video",
- .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_OVERLAY|
+ .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|
VID_TYPE_CLIPPING|VID_TYPE_SCALES,
.hardware = 0,
.fops = &video_fops,
diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h
index 683e785..17ba34f 100644
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -557,6 +557,7 @@ struct saa7134_dev {
/* saa7134-core.c */
extern struct list_head saa7134_devlist;
+extern int saa7134_no_overlay;
void saa7134_track_gpio(struct saa7134_dev *dev, char *msg);
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