]> err.no Git - linux-2.6/blobdiff - sound/core/pcm_lib.c
[ALSA] Use posix clock monotonic for PCM and timer timestamps
[linux-2.6] / sound / core / pcm_lib.c
index 9fefcaa2c324e5a4c740a9653945185a212e5374..db3d7e934ec3bf1655b0c4ed0a1d1e64e72f0a6d 100644 (file)
@@ -1,6 +1,6 @@
 /*
  *  Digital Audio (PCM) abstract layer
- *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  *                   Abramo Bagnara <abramo@alsa-project.org>
  *
  *
@@ -148,8 +148,6 @@ static inline snd_pcm_uframes_t snd_pcm_update_hw_ptr_pos(struct snd_pcm_substre
        pos = substream->ops->pointer(substream);
        if (pos == SNDRV_PCM_POS_XRUN)
                return pos; /* XRUN */
-       if (runtime->tstamp_mode & SNDRV_PCM_TSTAMP_MMAP)
-               getnstimeofday((struct timespec *)&runtime->status->tstamp);
 #ifdef CONFIG_SND_DEBUG
        if (pos >= runtime->buffer_size) {
                snd_printk(KERN_ERR  "BUG: stream = %i, pos = 0x%lx, buffer size = 0x%lx, period size = 0x%lx\n", substream->stream, pos, runtime->buffer_size, runtime->period_size);
@@ -189,6 +187,8 @@ static inline int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *subs
        snd_pcm_uframes_t new_hw_ptr, hw_ptr_interrupt;
        snd_pcm_sframes_t delta;
 
+       if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_MMAP)
+               snd_pcm_gettime(runtime, (struct timespec *)&runtime->status->tstamp);
        pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
        if (pos == SNDRV_PCM_POS_XRUN) {
                xrun(substream);