diff options
Diffstat (limited to 'drivers/media/radio/radio-gemtek-pci.c')
| -rw-r--r-- | drivers/media/radio/radio-gemtek-pci.c | 42 |
1 files changed, 24 insertions, 18 deletions
diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c index 5cd7f032298d..e15bee6d7cfc 100644 --- a/drivers/media/radio/radio-gemtek-pci.c +++ b/drivers/media/radio/radio-gemtek-pci.c @@ -100,9 +100,8 @@ struct gemtek_pci_card { u8 mute; }; -static const char rcsid[] = "$Id: radio-gemtek-pci.c,v 1.1 2001/07/23 08:08:16 ted Exp ted $"; - static int nr_radio = -1; +static unsigned long in_use; static inline u8 gemtek_pci_out( u16 value, u32 port ) { @@ -205,8 +204,7 @@ static int vidioc_querycap(struct file *file, void *priv, static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct video_device *dev = video_devdata(file); - struct gemtek_pci_card *card = dev->priv; + struct gemtek_pci_card *card = video_drvdata(file); if (v->index > 0) return -EINVAL; @@ -233,8 +231,7 @@ static int vidioc_s_tuner(struct file *file, void *priv, static int vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct video_device *dev = video_devdata(file); - struct gemtek_pci_card *card = dev->priv; + struct gemtek_pci_card *card = video_drvdata(file); if ( (f->frequency < GEMTEK_PCI_RANGE_LOW) || (f->frequency > GEMTEK_PCI_RANGE_HIGH) ) @@ -248,8 +245,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct video_device *dev = video_devdata(file); - struct gemtek_pci_card *card = dev->priv; + struct gemtek_pci_card *card = video_drvdata(file); f->type = V4L2_TUNER_RADIO; f->frequency = card->current_frequency; @@ -273,8 +269,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct video_device *dev = video_devdata(file); - struct gemtek_pci_card *card = dev->priv; + struct gemtek_pci_card *card = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -293,8 +288,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv, static int vidioc_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct video_device *dev = video_devdata(file); - struct gemtek_pci_card *card = dev->priv; + struct gemtek_pci_card *card = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -364,10 +358,21 @@ MODULE_DEVICE_TABLE( pci, gemtek_pci_id ); static int mx = 1; +static int gemtek_pci_exclusive_open(struct inode *inode, struct file *file) +{ + return test_and_set_bit(0, &in_use) ? -EBUSY : 0; +} + +static int gemtek_pci_exclusive_release(struct inode *inode, struct file *file) +{ + clear_bit(0, &in_use); + return 0; +} + static const struct file_operations gemtek_pci_fops = { .owner = THIS_MODULE, - .open = video_exclusive_open, - .release = video_exclusive_release, + .open = gemtek_pci_exclusive_open, + .release = gemtek_pci_exclusive_release, .ioctl = video_ioctl2, #ifdef CONFIG_COMPAT .compat_ioctl = v4l_compat_ioctl32, @@ -391,9 +396,10 @@ static const struct v4l2_ioctl_ops gemtek_pci_ioctl_ops = { }; static struct video_device vdev_template = { - .name = "Gemtek PCI Radio", - .fops = &gemtek_pci_fops, - .ioctl_ops = &gemtek_pci_ioctl_ops, + .name = "Gemtek PCI Radio", + .fops = &gemtek_pci_fops, + .ioctl_ops = &gemtek_pci_ioctl_ops, + .release = video_device_release_empty, }; static int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci_device_id *pci_id ) @@ -431,7 +437,7 @@ static int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci } card->videodev = devradio; - devradio->priv = card; + video_set_drvdata(devradio, card); gemtek_pci_mute( card ); printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n", |