static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
					 struct snd_pcm_sync_ptr32 __user *src)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	volatile struct snd_pcm_mmap_status *status;
	volatile struct snd_pcm_mmap_control *control;
	u32 sflags;
	struct snd_pcm_mmap_control scontrol;
	struct snd_pcm_mmap_status sstatus;
	snd_pcm_uframes_t boundary;
	int err;

	if (snd_BUG_ON(!runtime))
		return -EINVAL;

	if (get_user(sflags, &src->flags) ||
	    get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
	    get_user(scontrol.avail_min, &src->c.control.avail_min))
		return -EFAULT;
	if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
		err = snd_pcm_hwsync(substream);
		if (err < 0)
			return err;
	}
	status = runtime->status;
	control = runtime->control;
	boundary = recalculate_boundary(runtime);
	if (! boundary)
		boundary = 0x7fffffff;
	snd_pcm_stream_lock_irq(substream);
	/* FIXME: we should consider the boundary for the sync from app */
	if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) {
		err = pcm_lib_apply_appl_ptr(substream,
				scontrol.appl_ptr);
		if (err < 0) {
			snd_pcm_stream_unlock_irq(substream);
			return err;
		}
	} else
		scontrol.appl_ptr = control->appl_ptr % boundary;
	if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
		control->avail_min = scontrol.avail_min;
	else
		scontrol.avail_min = control->avail_min;
	sstatus.state = status->state;
	sstatus.hw_ptr = status->hw_ptr % boundary;
	sstatus.tstamp = status->tstamp;
	sstatus.suspended_state = status->suspended_state;
	sstatus.audio_tstamp = status->audio_tstamp;
	snd_pcm_stream_unlock_irq(substream);
	if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
		snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE);
	if (put_user(sstatus.state, &src->s.status.state) ||
	    put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
	    put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) ||
	    put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) ||
	    put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
	    put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) ||
	    put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) ||
	    put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
	    put_user(scontrol.avail_min, &src->c.control.avail_min))
		return -EFAULT;

	return 0;
}
static int snd_pcm_ioctl_sync_ptr_compat(struct snd_pcm_substream *substream,
					 struct snd_pcm_sync_ptr32 __user *src)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	volatile struct snd_pcm_mmap_status *status;
	volatile struct snd_pcm_mmap_control *control;
	u32 sflags;
	struct snd_pcm_mmap_control scontrol;
	struct snd_pcm_mmap_status sstatus;
	snd_pcm_uframes_t boundary;
	int err;

	if (snd_BUG_ON(!runtime))
		return -EINVAL;

	if (get_user(sflags, &src->flags) ||
	    get_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
	    get_user(scontrol.avail_min, &src->c.control.avail_min))
		return -EFAULT;
	if (sflags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
		err = snd_pcm_hwsync(substream);
		if (err < 0)
			return err;
	}
	status = runtime->status;
	control = runtime->control;
	boundary = recalculate_boundary(runtime);
	if (! boundary)
		boundary = 0x7fffffff;
	snd_pcm_stream_lock_irq(substream);
	 
	if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) {
		err = pcm_lib_apply_appl_ptr(substream,
				scontrol.appl_ptr);
		if (err < 0) {
			snd_pcm_stream_unlock_irq(substream);
			return err;
		}
	} else
		scontrol.appl_ptr = control->appl_ptr % boundary;
	if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
		control->avail_min = scontrol.avail_min;
	else
		scontrol.avail_min = control->avail_min;
	sstatus.state = status->state;
	sstatus.hw_ptr = status->hw_ptr % boundary;
	sstatus.tstamp = status->tstamp;
	sstatus.suspended_state = status->suspended_state;
	sstatus.audio_tstamp = status->audio_tstamp;
	snd_pcm_stream_unlock_irq(substream);
	if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
		snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE);
	if (put_user(sstatus.state, &src->s.status.state) ||
	    put_user(sstatus.hw_ptr, &src->s.status.hw_ptr) ||
	    put_user(sstatus.tstamp.tv_sec, &src->s.status.tstamp_sec) ||
	    put_user(sstatus.tstamp.tv_nsec, &src->s.status.tstamp_nsec) ||
	    put_user(sstatus.suspended_state, &src->s.status.suspended_state) ||
	    put_user(sstatus.audio_tstamp.tv_sec, &src->s.status.audio_tstamp_sec) ||
	    put_user(sstatus.audio_tstamp.tv_nsec, &src->s.status.audio_tstamp_nsec) ||
	    put_user(scontrol.appl_ptr, &src->c.control.appl_ptr) ||
	    put_user(scontrol.avail_min, &src->c.control.avail_min))
		return -EFAULT;

	return 0;
}