static inline void gemtek_pci_unmute( struct gemtek_pci_card *card )
{
if ( card->mute ) {
gemtek_pci_setfrequency( card, card->current_frequency );
card->mute = false;
}
}
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;
if ( (f->frequency < GEMTEK_PCI_RANGE_LOW) ||
(f->frequency > GEMTEK_PCI_RANGE_HIGH) )
return -EINVAL;
gemtek_pci_setfrequency(card, f->frequency);
card->current_frequency = f->frequency;
card->mute = false;
return 0;
}
static int gemtek_pci_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *arg)
{
struct video_device *dev = video_devdata(file);
struct gemtek_pci_card *card = dev->priv;
switch ( cmd ) {
case VIDIOCGCAP:
{
struct video_capability *c = arg;
memset(c,0,sizeof(*c));
c->type = VID_TYPE_TUNER;
c->channels = 1;
c->audios = 1;
strcpy( c->name, "Gemtek PCI Radio" );
return 0;
}
case VIDIOCGTUNER:
{
struct video_tuner *t = arg;
if ( t->tuner )
return -EINVAL;
t->rangelow = GEMTEK_PCI_RANGE_LOW;
t->rangehigh = GEMTEK_PCI_RANGE_HIGH;
t->flags = VIDEO_TUNER_LOW;
t->mode = VIDEO_MODE_AUTO;
t->signal = 0xFFFF * gemtek_pci_getsignal( card );
strcpy( t->name, "FM" );
return 0;
}
case VIDIOCSTUNER:
{
struct video_tuner *t = arg;
if ( t->tuner )
return -EINVAL;
return 0;
}
case VIDIOCGFREQ:
{
unsigned long *freq = arg;
*freq = card->current_frequency;
return 0;
}
case VIDIOCSFREQ:
{
unsigned long *freq = arg;
if ( (*freq < GEMTEK_PCI_RANGE_LOW) ||
(*freq > GEMTEK_PCI_RANGE_HIGH) )
return -EINVAL;
gemtek_pci_setfrequency( card, *freq );
card->current_frequency = *freq;
card->mute = FALSE;
return 0;
}
case VIDIOCGAUDIO:
{
struct video_audio *a = arg;
memset( a, 0, sizeof( *a ) );
a->flags |= VIDEO_AUDIO_MUTABLE;
a->volume = 1;
a->step = 65535;
strcpy( a->name, "Radio" );
return 0;
}
case VIDIOCSAUDIO:
{
struct video_audio *a = arg;
if ( a->audio )
return -EINVAL;
if ( a->flags & VIDEO_AUDIO_MUTE )
gemtek_pci_mute( card );
else
gemtek_pci_unmute( card );
return 0;
}
default:
return -ENOIOCTLCMD;
}
}
static int gemtek_pci_ioctl( struct video_device *dev, unsigned int cmd, void *arg)
{
struct gemtek_pci_card *card = dev->priv;
switch ( cmd ) {
case VIDIOCGCAP:
{
struct video_capability c;
c.type = VID_TYPE_TUNER;
c.channels = 1;
c.audios = 1;
c.maxwidth = 0;
c.maxheight = 0;
c.minwidth = 0;
c.minheight = 0;
strcpy( c.name, "Gemtek PCI Radio" );
if ( copy_to_user( arg, &c, sizeof( c ) ) )
return -EFAULT;
return 0;
}
case VIDIOCGTUNER:
{
struct video_tuner t;
int signal;
if ( copy_from_user( &t, arg, sizeof( struct video_tuner ) ) )
return -EFAULT;
if ( t.tuner )
return -EINVAL;
signal = gemtek_pci_getsignal( card );
t.rangelow = GEMTEK_PCI_RANGE_LOW;
t.rangehigh = GEMTEK_PCI_RANGE_HIGH;
t.flags = VIDEO_TUNER_LOW | (7 << signal) ;
t.mode = VIDEO_MODE_AUTO;
t.signal = 0xFFFF * signal;
strcpy( t.name, "FM" );
if ( copy_to_user( arg, &t, sizeof( struct video_tuner ) ) )
return -EFAULT;
return 0;
}
case VIDIOCSTUNER:
{
struct video_tuner t;
if ( copy_from_user( &t, arg, sizeof( struct video_tuner ) ) )
return -EFAULT;
if ( t.tuner )
return -EINVAL;
return 0;
}
case VIDIOCGFREQ:
return put_user( card->current_frequency, (u32 *)arg );
case VIDIOCSFREQ:
{
u32 frequency;
if ( get_user( frequency, (u32 *)arg ) )
return -EFAULT;
if ( (frequency < GEMTEK_PCI_RANGE_LOW) || (frequency > GEMTEK_PCI_RANGE_HIGH) )
return -EINVAL;
gemtek_pci_setfrequency( card, frequency );
card->current_frequency = frequency;
card->mute = FALSE;
return 0;
}
case VIDIOCGAUDIO:
{
struct video_audio a;
memset( &a, 0, sizeof( a ) );
a.flags |= VIDEO_AUDIO_MUTABLE;
a.volume = 1;
a.step = 65535;
a.mode = (1 << gemtek_pci_getsignal( card ));
strcpy( a.name, "Radio" );
if ( copy_to_user( arg, &a, sizeof( struct video_audio ) ) )
return -EFAULT;
return 0;
}
case VIDIOCSAUDIO:
{
struct video_audio a;
if ( copy_from_user( &a, arg, sizeof( struct video_audio ) ) )
return -EFAULT;
if ( a.audio )
return -EINVAL;
if ( a.flags & VIDEO_AUDIO_MUTE )
gemtek_pci_mute( card );
else
gemtek_pci_unmute( card );
return 0;
}
default:
return -ENOIOCTLCMD;
}
}