int
_oss_ioctl(int fd, unsigned long com, ...)
{
va_list ap;
void *argp;
va_start(ap, com);
argp = va_arg(ap, void *);
va_end(ap);
if (IOCGROUP(com) == 'P')
return audio_ioctl(fd, com, argp);
else if (IOCGROUP(com) == 'M')
return mixer_ioctl(fd, com, argp);
else
return ioctl(fd, com, argp);
}
static int
jornada56x_audio_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
{
long val = 0;
int ret = 0;
switch (cmd) {
case SNDCTL_DSP_STEREO:
ret = get_user(val, (int *) arg);
if (ret)
break;
/* the UDA1341 is stereo only */
ret = (val == 0) ? -EINVAL : 1;
ret = put_user(ret, (int *) arg);
break;
case SNDCTL_DSP_CHANNELS:
case SOUND_PCM_READ_CHANNELS:
/* the UDA1341 is stereo only */
ret = put_user(2, (long *) arg);
break;
case SNDCTL_DSP_SPEED:
ret = get_user(val, (long *) arg);
if (ret)
break;
jornada56x_set_audio_rate(val);
/* fall through */
case SOUND_PCM_READ_RATE:
ret = put_user(val, (long *) arg); /* we assume that jornada56x_set_audio_rate() is always OK */
break;
case SNDCTL_DSP_SETFMT:
case SNDCTL_DSP_GETFMTS:
/* we can do 16-bit only */
ret = put_user(AFMT_S16_LE, (long *) arg);
break;
default:
/* Maybe this is meant for the mixer (as per OSS Docs) */
ret = mixer_ioctl(inode, file, cmd, arg);
break;
}
return ret;
}
static int
davinci_aic33_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
{
long val;
int ret = 0;
DPRINTK(" 0x%08x\n", cmd);
/*
* These are platform dependent ioctls which are not handled by the
* generic davinci-audio module.
*/
switch (cmd) {
case SNDCTL_DSP_STEREO:
ret = get_user(val, (int *)arg);
if (ret)
return ret;
/* the Davinci supports AIC33 as stereo, mono on stereo jack */
ret = (val == 0) ? -EINVAL : 1;
return put_user(ret, (int *)arg);
case SNDCTL_DSP_CHANNELS:
ret = get_user(val, (long *)arg);
if (ret) {
DPRINTK("get_user failed\n");
break;
}
if (val == STEREO) {
DPRINTK("Driver support for AIC33 as stereo\n");
aic33_local.nochan = STEREO;
davinci_set_mono_stereo(aic33_local.nochan);
} else if (val == MONO) {
DPRINTK("Driver support for AIC33 as mono\n");
aic33_local.nochan = MONO;
davinci_set_mono_stereo(aic33_local.nochan);
} else {
DPRINTK
("Driver support for AIC33 as stereo/mono mode\n");
return -EPERM;
}
case SOUND_PCM_READ_CHANNELS:
/* the Davinci supports AIC33 as stereo, mono on stereo jack */
if (aic33_local.nochan == MONO)
return put_user(MONO, (long *)arg);
else
return put_user(STEREO, (long *)arg);
case SNDCTL_DSP_SPEED:
ret = get_user(val, (long *)arg);
if (ret) {
DPRINTK("get_user failed\n");
break;
}
ret = davinci_set_samplerate(val);
if (ret) {
DPRINTK("davinci_set_samplerate failed\n");
break;
}
/* fall through */
case SOUND_PCM_READ_RATE:
return put_user(audio_samplerate, (long *)arg);
case SNDCTL_DSP_SETFMT: /* set Format */
ret = get_user(val, (long *)arg);
if (ret) {
DPRINTK("get_user failed\n");
break;
}
if (val != AFMT_S16_LE) {
DPRINTK
("Driver supports only AFMT_S16_LE audio format\n");
return -EPERM;
}
case SOUND_PCM_READ_BITS:
case SNDCTL_DSP_GETFMTS:
/* we can do 16-bit only */
return put_user(AFMT_S16_LE, (long *)arg);
default:
/* Maybe this is meant for the mixer (As per OSS Docs) */
return mixer_ioctl(inode, file, cmd, arg);
}
return ret;
}
