static int gemtek_ioctl(struct video_device *dev, unsigned int cmd, void *arg) { struct gemtek_device *rt=dev->priv; switch(cmd) { case VIDIOCGCAP: { struct video_capability v; v.type=VID_TYPE_TUNER; v.channels=1; v.audios=1; /* No we don't do pictures */ v.maxwidth=0; v.maxheight=0; v.minwidth=0; v.minheight=0; strcpy(v.name, "GemTek"); if(copy_to_user(arg,&v,sizeof(v))) return -EFAULT; return 0; } case VIDIOCGTUNER: { struct video_tuner v; if(copy_from_user(&v, arg,sizeof(v))!=0) return -EFAULT; if(v.tuner) /* Only 1 tuner */ return -EINVAL; v.rangelow=87*16000; v.rangehigh=108*16000; v.flags=VIDEO_TUNER_LOW; v.mode=VIDEO_MODE_AUTO; v.signal=0xFFFF*gemtek_getsigstr(rt); if(copy_to_user(arg,&v, sizeof(v))) return -EFAULT; return 0; } case VIDIOCSTUNER: { struct video_tuner v; if(copy_from_user(&v, arg, sizeof(v))) return -EFAULT; if(v.tuner!=0) return -EINVAL; /* Only 1 tuner so no setting needed ! */ return 0; } case VIDIOCGFREQ: if(copy_to_user(arg, &rt->curfreq, sizeof(rt->curfreq))) return -EFAULT; return 0; case VIDIOCSFREQ: if(copy_from_user(&rt->curfreq, arg,sizeof(rt->curfreq))) return -EFAULT; /* needs to be called twice in order for getsigstr to work */ gemtek_setfreq(rt, rt->curfreq); gemtek_setfreq(rt, rt->curfreq); return 0; case VIDIOCGAUDIO: { struct video_audio v; memset(&v,0, sizeof(v)); v.flags|=VIDEO_AUDIO_MUTABLE; v.volume=1; v.step=65535; strcpy(v.name, "Radio"); if(copy_to_user(arg,&v, sizeof(v))) return -EFAULT; return 0; } case VIDIOCSAUDIO: { struct video_audio v; if(copy_from_user(&v, arg, sizeof(v))) return -EFAULT; if(v.audio) return -EINVAL; if(v.flags&VIDEO_AUDIO_MUTE) gemtek_mute(rt); else gemtek_unmute(rt); return 0; } default: return -ENOIOCTLCMD; } }
static int gemtek_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg) { struct video_device *dev = video_devdata(file); struct gemtek_device *rt=dev->priv; switch(cmd) { case VIDIOCGCAP: { struct video_capability *v = arg; memset(v,0,sizeof(*v)); v->type=VID_TYPE_TUNER; v->channels=1; v->audios=1; strcpy(v->name, "GemTek"); return 0; } case VIDIOCGTUNER: { struct video_tuner *v = arg; if(v->tuner) /* Only 1 tuner */ return -EINVAL; v->rangelow=87*16000; v->rangehigh=108*16000; v->flags=VIDEO_TUNER_LOW; v->mode=VIDEO_MODE_AUTO; v->signal=0xFFFF*gemtek_getsigstr(rt); strcpy(v->name, "FM"); return 0; } case VIDIOCSTUNER: { struct video_tuner *v = arg; if(v->tuner!=0) return -EINVAL; /* Only 1 tuner so no setting needed ! */ return 0; } case VIDIOCGFREQ: { unsigned long *freq = arg; *freq = rt->curfreq; return 0; } case VIDIOCSFREQ: { unsigned long *freq = arg; rt->curfreq = *freq; /* needs to be called twice in order for getsigstr to work */ gemtek_setfreq(rt, rt->curfreq); gemtek_setfreq(rt, rt->curfreq); return 0; } case VIDIOCGAUDIO: { struct video_audio *v = 0; memset(v,0, sizeof(*v)); v->flags|=VIDEO_AUDIO_MUTABLE; v->volume=1; v->step=65535; strcpy(v->name, "Radio"); return 0; } case VIDIOCSAUDIO: { struct video_audio *v = arg; if(v->audio) return -EINVAL; if(v->flags&VIDEO_AUDIO_MUTE) gemtek_mute(rt); else gemtek_unmute(rt); return 0; } default: return -ENOIOCTLCMD; } }