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path: root/drivers/media/video/saa7134/saa7134-video.c
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Diffstat (limited to 'drivers/media/video/saa7134/saa7134-video.c')
-rw-r--r--drivers/media/video/saa7134/saa7134-video.c70
1 files changed, 46 insertions, 24 deletions
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index e97426bc85df..57a11e71d996 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -460,17 +460,17 @@ static int res_get(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int
return 1;
/* is it free? */
- down(&dev->lock);
+ mutex_lock(&dev->lock);
if (dev->resources & bit) {
/* no, someone else uses it */
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
/* it's free, grab it */
fh->resources |= bit;
dev->resources |= bit;
dprintk("res: get %d\n",bit);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 1;
}
@@ -489,14 +489,13 @@ int res_locked(struct saa7134_dev *dev, unsigned int bit)
static
void res_free(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bits)
{
- if ((fh->resources & bits) != bits)
- BUG();
+ BUG_ON((fh->resources & bits) != bits);
- down(&dev->lock);
+ mutex_lock(&dev->lock);
fh->resources &= ~bits;
dev->resources &= ~bits;
dprintk("res: put %d\n",bits);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
}
/* ------------------------------------------------------------------ */
@@ -1340,21 +1339,21 @@ video_poll(struct file *file, struct poll_table_struct *wait)
if (!list_empty(&fh->cap.stream))
buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream);
} else {
- down(&fh->cap.lock);
+ mutex_lock(&fh->cap.lock);
if (UNSET == fh->cap.read_off) {
/* need to capture a new frame */
if (res_locked(fh->dev,RESOURCE_VIDEO)) {
- up(&fh->cap.lock);
+ mutex_unlock(&fh->cap.lock);
return POLLERR;
}
if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field)) {
- up(&fh->cap.lock);
+ mutex_unlock(&fh->cap.lock);
return POLLERR;
}
fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
fh->cap.read_off = 0;
}
- up(&fh->cap.lock);
+ mutex_unlock(&fh->cap.lock);
buf = fh->cap.read_buf;
}
@@ -1463,6 +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:
@@ -1527,6 +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;
@@ -1557,18 +1564,22 @@ 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;
- down(&dev->lock);
+ mutex_lock(&dev->lock);
fh->win = f->fmt.win;
fh->nclips = f->fmt.win.clipcount;
if (fh->nclips > 8)
fh->nclips = 8;
if (copy_from_user(fh->clips,f->fmt.win.clips,
sizeof(struct v4l2_clip)*fh->nclips)) {
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return -EFAULT;
}
@@ -1578,7 +1589,7 @@ static int saa7134_s_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
start_preview(dev,fh);
spin_unlock_irqrestore(&dev->slock,flags);
}
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
case V4L2_BUF_TYPE_VBI_CAPTURE:
saa7134_vbi_fmt(dev,f);
@@ -1612,9 +1623,9 @@ int saa7134_common_ioctl(struct saa7134_dev *dev,
return get_control(dev,arg);
case VIDIOC_S_CTRL:
{
- down(&dev->lock);
+ mutex_lock(&dev->lock);
err = set_control(dev,NULL,arg);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return err;
}
/* --- input switching --------------------------------------- */
@@ -1664,9 +1675,9 @@ int saa7134_common_ioctl(struct saa7134_dev *dev,
return -EINVAL;
if (NULL == card_in(dev,*i).name)
return -EINVAL;
- down(&dev->lock);
+ mutex_lock(&dev->lock);
video_mux(dev,*i);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
@@ -1716,11 +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;
@@ -1766,7 +1779,7 @@ static int video_do_ioctl(struct inode *inode, struct file *file,
if (i == TVNORMS)
return -EINVAL;
- down(&dev->lock);
+ mutex_lock(&dev->lock);
if (res_check(fh, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev,fh);
@@ -1776,7 +1789,7 @@ static int video_do_ioctl(struct inode *inode, struct file *file,
} else
set_tvnorm(dev,&tvnorms[i]);
saa7134_tvaudio_do_scan(dev);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
@@ -1909,13 +1922,13 @@ static int video_do_ioctl(struct inode *inode, struct file *file,
return -EINVAL;
if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
return -EINVAL;
- down(&dev->lock);
+ mutex_lock(&dev->lock);
dev->ctl_freq = f->frequency;
saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
saa7134_tvaudio_do_scan(dev);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
@@ -1971,6 +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 &&
@@ -2031,6 +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);
@@ -2282,7 +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,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 16:38:47 +0100