linux-2.6.33/snd_pcm_update_hw_ptr_post()
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開始行:
*参照元 [#p7053384]
#backlinks
*説明 [#yd555cd2]
-パス: [[linux-2.6.33/sound/core/pcm_lib.c]]
-FIXME: これは何?
--説明
**引数 [#a324901d]
-struct snd_pcm_substream *substream
--
--[[linux-2.6.33/snd_pcm_substream]]
-struct snd_pcm_runtime *runtime
--
--[[linux-2.6.33/snd_pcm_runtime]]
**返り値 [#b1fea8ed]
-int
**参考 [#i04cd681]
*実装 [#v7a217c4]
static int snd_pcm_update_hw_ptr_post(struct snd_pcm_sub...
struct snd_pcm_runtime *runtime)
{
snd_pcm_uframes_t avail;
-
--[[linux-2.6.33/snd_pcm_uframes_t]]
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
avail = snd_pcm_playback_avail(runtime);
else
avail = snd_pcm_capture_avail(runtime);
-
--[[linux-2.6.33/snd_pcm_playback_avail()]]
-
--[[linux-2.6.33/snd_pcm_capture_avail()]]
if (avail > runtime->avail_max)
runtime->avail_max = avail;
if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
if (avail >= runtime->buffer_size) {
snd_pcm_drain_done(substream);
return -EPIPE;
}
-
--[[linux-2.6.33/snd_pcm_drain_done()]]
} else {
if (avail >= runtime->stop_threshold) {
xrun(substream);
return -EPIPE;
}
}
-
--[[linux-2.6.33/xrun()]]
if (avail >= runtime->control->avail_min)
wake_up(&runtime->sleep);
-
--[[linux-2.6.33/wake_up()]]
return 0;
}
*コメント [#q365e3c1]
終了行:
*参照元 [#p7053384]
#backlinks
*説明 [#yd555cd2]
-パス: [[linux-2.6.33/sound/core/pcm_lib.c]]
-FIXME: これは何?
--説明
**引数 [#a324901d]
-struct snd_pcm_substream *substream
--
--[[linux-2.6.33/snd_pcm_substream]]
-struct snd_pcm_runtime *runtime
--
--[[linux-2.6.33/snd_pcm_runtime]]
**返り値 [#b1fea8ed]
-int
**参考 [#i04cd681]
*実装 [#v7a217c4]
static int snd_pcm_update_hw_ptr_post(struct snd_pcm_sub...
struct snd_pcm_runtime *runtime)
{
snd_pcm_uframes_t avail;
-
--[[linux-2.6.33/snd_pcm_uframes_t]]
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
avail = snd_pcm_playback_avail(runtime);
else
avail = snd_pcm_capture_avail(runtime);
-
--[[linux-2.6.33/snd_pcm_playback_avail()]]
-
--[[linux-2.6.33/snd_pcm_capture_avail()]]
if (avail > runtime->avail_max)
runtime->avail_max = avail;
if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
if (avail >= runtime->buffer_size) {
snd_pcm_drain_done(substream);
return -EPIPE;
}
-
--[[linux-2.6.33/snd_pcm_drain_done()]]
} else {
if (avail >= runtime->stop_threshold) {
xrun(substream);
return -EPIPE;
}
}
-
--[[linux-2.6.33/xrun()]]
if (avail >= runtime->control->avail_min)
wake_up(&runtime->sleep);
-
--[[linux-2.6.33/wake_up()]]
return 0;
}
*コメント [#q365e3c1]
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