diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-video.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-video.c | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 8fd31138f9a..9aafd584419 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) @@ -1796,18 +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) @@ -1840,7 +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); @@ -1857,6 +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) @@ -2397,6 +2424,7 @@ 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, |