static int pcm20_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg) { struct video_device *dev = video_devdata(file); struct pcm20_device *pcm20 = dev->priv; int i; switch(cmd) { case VIDIOCGCAP: { struct video_capability *v = arg; memset(v,0,sizeof(*v)); v->type=VID_TYPE_TUNER; strcpy(v->name, "Miro PCM20"); v->channels=1; v->audios=1; 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; pcm20_getflags(pcm20, &v->flags, &v->signal); v->flags|=VIDEO_TUNER_LOW; v->mode=VIDEO_MODE_AUTO; 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 = pcm20->freq; return 0; } case VIDIOCSFREQ: { unsigned long *freq = arg; pcm20->freq = *freq; i=pcm20_setfreq(pcm20, pcm20->freq); pr_debug("First view (setfreq): 0x%x\n", i); return i; } case VIDIOCGAUDIO: { struct video_audio *v = arg; memset(v,0, sizeof(*v)); v->flags=VIDEO_AUDIO_MUTABLE; if (pcm20->muted) v->flags|=VIDEO_AUDIO_MUTE; v->mode=VIDEO_SOUND_STEREO; if (pcm20->stereo) v->mode|=VIDEO_SOUND_MONO; /* v->step=2048; */ strcpy(v->name, "Radio"); return 0; } case VIDIOCSAUDIO: { struct video_audio *v = arg; if(v->audio) return -EINVAL; pcm20_mute(pcm20, !!(v->flags&VIDEO_AUDIO_MUTE)); if(v->flags&VIDEO_SOUND_MONO) pcm20_stereo(pcm20, 0); if(v->flags&VIDEO_SOUND_STEREO) pcm20_stereo(pcm20, 1); return 0; } default: return -ENOIOCTLCMD; } }
static int pcm20_ioctl(struct video_device *dev, unsigned int cmd, void *arg) { struct pcm20_device *pcm20=dev->priv; switch(cmd) { case VIDIOCGCAP: { struct video_capability v; v.type=VID_TYPE_TUNER; strcpy(v.name, "Miro PCM20"); v.channels=1; v.audios=1; /* No we don't do pictures */ v.maxwidth=0; v.maxheight=0; v.minwidth=0; v.minheight=0; 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=(int)(87.5*16); v.rangehigh=(int)(108.0*16); v.flags=0; v.mode=VIDEO_MODE_AUTO; v.signal=0xFFFF*pcm20_getsigstr(pcm20); strcpy(v.name, "FM"); 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, &pcm20->curfreq, sizeof(pcm20->curfreq))) return -EFAULT; return 0; case VIDIOCSFREQ: if(copy_from_user(&pcm20->curfreq, arg,sizeof(pcm20->curfreq))) return -EFAULT; pcm20_setfreq(pcm20, pcm20->curfreq); return 0; case VIDIOCGAUDIO: { struct video_audio v; memset(&v,0, sizeof(v)); v.flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME; v.volume=pcm20->curvol * 2048; 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) pcm20_mute(pcm20); else pcm20_setvol(pcm20,v.volume/2048); return 0; } default: return -ENOIOCTLCMD; } }