提交 57cc2432 编写于 作者: M Mark Brown

Merge branch 'for-3.0' into for-3.1

...@@ -138,11 +138,20 @@ static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream) ...@@ -138,11 +138,20 @@ static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)
pr_debug("%s enter\n", __func__); pr_debug("%s enter\n", __func__);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
diff = sport_curr_offset_tx(sport); diff = sport_curr_offset_tx(sport);
frames = bytes_to_frames(substream->runtime, diff);
} else { } else {
diff = sport_curr_offset_rx(sport); diff = sport_curr_offset_rx(sport);
frames = bytes_to_frames(substream->runtime, diff);
} }
/*
* TX at least can report one frame beyond the end of the
* buffer if we hit the wraparound case - clamp to within the
* buffer as the ALSA APIs require.
*/
if (diff == snd_pcm_lib_buffer_bytes(substream))
diff = 0;
frames = bytes_to_frames(substream->runtime, diff);
return frames; return frames;
} }
......
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