Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

[~andy/linux] / sound / core / pcm_native.c

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index cb769d415db7af60bca68cbccd583042f3d04c37..84da3ba17c86911b0d48799772bd0c0960c90693 100644 (file)
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -312,9 +312,18 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream,
 
        hw = &substream->runtime->hw;
        if (!params->info)
-               params->info = hw->info;
-       if (!params->fifo_size)
-               params->fifo_size = hw->fifo_size;
+               params->info = hw->info & ~SNDRV_PCM_INFO_FIFO_IN_FRAMES;
+       if (!params->fifo_size) {
+               if (snd_mask_min(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT]) ==
+                   snd_mask_max(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT]) &&
+                    snd_mask_min(&params->masks[SNDRV_PCM_HW_PARAM_CHANNELS]) ==
+                    snd_mask_max(&params->masks[SNDRV_PCM_HW_PARAM_CHANNELS])) {
+                       changed = substream->ops->ioctl(substream,
+                                       SNDRV_PCM_IOCTL1_FIFO_SIZE, params);
+                       if (params < 0)
+                               return changed;
+               }
+       }
        params->rmask = 0;
        return 0;
 }
@@ -849,6 +858,7 @@ static void snd_pcm_post_start(struct snd_pcm_substream *substream, int state)
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
        snd_pcm_trigger_tstamp(substream);
+       runtime->hw_ptr_jiffies = jiffies;
        runtime->status->state = state;
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
            runtime->silence_size > 0)
@@ -962,6 +972,11 @@ static int snd_pcm_do_pause(struct snd_pcm_substream *substream, int push)
 {
        if (substream->runtime->trigger_master != substream)
                return 0;
+       /* The jiffies check in snd_pcm_update_hw_ptr*() is done by
+        * a delta betwen the current jiffies, this gives a large enough
+        * delta, effectively to skip the check once.
+        */
+       substream->runtime->hw_ptr_jiffies = jiffies - HZ * 1000;
        return substream->ops->trigger(substream,
                                       push ? SNDRV_PCM_TRIGGER_PAUSE_PUSH :
                                              SNDRV_PCM_TRIGGER_PAUSE_RELEASE);