snd_power_lock(card);
if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile)) >= 0)
- return snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0, 0);
+ res = snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0, 0);
snd_power_unlock(card);
return res;
}
return err;
}
+static int snd_pcm_sync_ptr(snd_pcm_substream_t *substream, struct sndrv_pcm_sync_ptr *_sync_ptr)
+{
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ struct sndrv_pcm_sync_ptr sync_ptr;
+ volatile struct sndrv_pcm_mmap_status *status;
+ volatile struct sndrv_pcm_mmap_control *control;
+ int err;
+
+ memset(&sync_ptr, 0, sizeof(sync_ptr));
+ if (get_user(sync_ptr.flags, (unsigned int *) &(_sync_ptr->flags)))
+ return -EFAULT;
+ if (copy_from_user(&sync_ptr.c.control, &(_sync_ptr->c.control), sizeof(struct sndrv_pcm_mmap_control)))
+ return -EFAULT;
+ status = runtime->status;
+ control = runtime->control;
+ if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
+ err = snd_pcm_hwsync(substream);
+ if (err < 0)
+ return err;
+ }
+ snd_pcm_stream_lock_irq(substream);
+ if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL))
+ control->appl_ptr = sync_ptr.c.control.appl_ptr;
+ else
+ sync_ptr.c.control.appl_ptr = control->appl_ptr;
+ if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
+ control->avail_min = sync_ptr.c.control.avail_min;
+ else
+ sync_ptr.c.control.avail_min = control->avail_min;
+ sync_ptr.s.status.state = status->state;
+ sync_ptr.s.status.hw_ptr = status->hw_ptr;
+ sync_ptr.s.status.tstamp = status->tstamp;
+ sync_ptr.s.status.suspended_state = status->suspended_state;
+ snd_pcm_stream_unlock_irq(substream);
+ if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr)))
+ return -EFAULT;
+ return 0;
+}
+
static int snd_pcm_playback_ioctl1(snd_pcm_substream_t *substream,
unsigned int cmd, void *arg);
static int snd_pcm_capture_ioctl1(snd_pcm_substream_t *substream,
return snd_pcm_hwsync(substream);
case SNDRV_PCM_IOCTL_DELAY:
return snd_pcm_delay(substream, (snd_pcm_sframes_t *) arg);
+ case SNDRV_PCM_IOCTL_SYNC_PTR:
+ return snd_pcm_sync_ptr(substream, (struct sndrv_pcm_sync_ptr *) arg);
case SNDRV_PCM_IOCTL_HW_REFINE_OLD:
return snd_pcm_hw_refine_old_user(substream, (struct sndrv_pcm_hw_params_old *) arg);
case SNDRV_PCM_IOCTL_HW_PARAMS_OLD: