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path: root/drivers/media/radio/radio-gemtek-pci.c
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Diffstat (limited to 'drivers/media/radio/radio-gemtek-pci.c')
-rw-r--r--drivers/media/radio/radio-gemtek-pci.c42
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 5cd7f032298..e15bee6d7cf 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",