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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.c63
1 files changed, 42 insertions, 21 deletions
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index 68c26898186..02bb6747a39 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -628,6 +628,9 @@ void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
if (card_in(dev, dev->ctl_input).tv)
saa7134_i2c_call_clients(dev, VIDIOC_S_STD, &dev->tvnorm->id);
+ /* Set the correct norm for the saa6752hs. This function
+ does nothing if there is no saa6752hs. */
+ saa7134_i2c_call_saa6752(dev, VIDIOC_S_STD, &dev->tvnorm->id);
}
static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
@@ -1330,6 +1333,8 @@ static int video_open(struct inode *inode, struct file *file)
struct saa7134_fh *fh;
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
int radio = 0;
+
+ lock_kernel();
list_for_each_entry(dev, &saa7134_devlist, devlist) {
if (dev->video_dev && (dev->video_dev->minor == minor))
goto found;
@@ -1342,6 +1347,7 @@ static int video_open(struct inode *inode, struct file *file)
goto found;
}
}
+ unlock_kernel();
return -ENODEV;
found:
@@ -1350,8 +1356,10 @@ static int video_open(struct inode *inode, struct file *file)
/* allocate + initialize per filehandle data */
fh = kzalloc(sizeof(*fh),GFP_KERNEL);
- if (NULL == fh)
+ if (NULL == fh) {
+ unlock_kernel();
return -ENOMEM;
+ }
file->private_data = fh;
fh->dev = dev;
fh->radio = radio;
@@ -1384,6 +1392,7 @@ static int video_open(struct inode *inode, struct file *file)
/* switch to video/vbi mode */
video_mux(dev,dev->ctl_input);
}
+ unlock_kernel();
return 0;
}
@@ -1790,18 +1799,25 @@ static int saa7134_querycap(struct file *file, void *priv,
return 0;
}
-static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id)
+int saa7134_s_std_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, v4l2_std_id *id)
{
- struct saa7134_fh *fh = priv;
- struct saa7134_dev *dev = fh->dev;
unsigned long flags;
unsigned int i;
v4l2_std_id fixup;
int err;
- err = v4l2_prio_check(&dev->prio, &fh->prio);
- if (0 != err)
- return err;
+ /* When called from the empress code fh == NULL.
+ That needs to be fixed somehow, but for now this is
+ good enough. */
+ if (fh) {
+ err = v4l2_prio_check(&dev->prio, &fh->prio);
+ if (0 != err)
+ return err;
+ } else if (res_locked(dev, RESOURCE_OVERLAY)) {
+ /* Don't change the std from the mpeg device
+ if overlay is active. */
+ return -EBUSY;
+ }
for (i = 0; i < TVNORMS; i++)
if (*id == tvnorms[i].id)
@@ -1834,7 +1850,7 @@ static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id)
*id = tvnorms[i].id;
mutex_lock(&dev->lock);
- if (res_check(fh, RESOURCE_OVERLAY)) {
+ if (fh && res_check(fh, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev, fh);
spin_unlock_irqrestore(&dev->slock, flags);
@@ -1851,6 +1867,23 @@ static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id)
mutex_unlock(&dev->lock);
return 0;
}
+EXPORT_SYMBOL_GPL(saa7134_s_std_internal);
+
+static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id)
+{
+ struct saa7134_fh *fh = priv;
+
+ return saa7134_s_std_internal(fh->dev, fh, id);
+}
+
+static int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
+{
+ struct saa7134_fh *fh = priv;
+ struct saa7134_dev *dev = fh->dev;
+
+ *id = dev->tvnorm->id;
+ return 0;
+}
static int saa7134_cropcap(struct file *file, void *priv,
struct v4l2_cropcap *cap)
@@ -2077,18 +2110,6 @@ static int saa7134_enum_fmt_vid_overlay(struct file *file, void *priv,
return 0;
}
-static int saa7134_enum_fmt_vbi_cap(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
-{
- if (0 != f->index)
- return -EINVAL;
-
- f->pixelformat = V4L2_PIX_FMT_GREY;
- strcpy(f->description, "vbi data");
-
- return 0;
-}
-
static int saa7134_g_fbuf(struct file *file, void *f,
struct v4l2_framebuffer *fb)
{
@@ -2379,7 +2400,6 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_g_fmt_vid_overlay = saa7134_g_fmt_vid_overlay,
.vidioc_try_fmt_vid_overlay = saa7134_try_fmt_vid_overlay,
.vidioc_s_fmt_vid_overlay = saa7134_s_fmt_vid_overlay,
- .vidioc_enum_fmt_vbi_cap = saa7134_enum_fmt_vbi_cap,
.vidioc_g_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
.vidioc_try_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
.vidioc_s_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
@@ -2391,6 +2411,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_qbuf = saa7134_qbuf,
.vidioc_dqbuf = saa7134_dqbuf,
.vidioc_s_std = saa7134_s_std,
+ .vidioc_g_std = saa7134_g_std,
.vidioc_enum_input = saa7134_enum_input,
.vidioc_g_input = saa7134_g_input,
.vidioc_s_input = saa7134_s_input,