[alsa-devel] [PATCH 04/19] ASoc: Intel: mfld-pcm: report pcm delay

Vinod Koul vinod.koul at intel.com
Fri Jun 13 14:33:53 CEST 2014


Now the DSP is capable of reporting the delay, report it to upper layers

Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
 sound/soc/intel/sst-mfld-platform-pcm.c |    1 +
 sound/soc/intel/sst-mfld-platform.h     |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/sound/soc/intel/sst-mfld-platform-pcm.c b/sound/soc/intel/sst-mfld-platform-pcm.c
index 4528946..80879e5 100644
--- a/sound/soc/intel/sst-mfld-platform-pcm.c
+++ b/sound/soc/intel/sst-mfld-platform-pcm.c
@@ -409,6 +409,7 @@ static snd_pcm_uframes_t sst_platform_pcm_pointer
 		pr_err("sst: error code = %d\n", ret_val);
 		return ret_val;
 	}
+	substream->runtime->delay = str_info->pcm_delay;
 	return str_info->buffer_ptr;
 }
 
diff --git a/sound/soc/intel/sst-mfld-platform.h b/sound/soc/intel/sst-mfld-platform.h
index 6d929c7..33a0a27 100644
--- a/sound/soc/intel/sst-mfld-platform.h
+++ b/sound/soc/intel/sst-mfld-platform.h
@@ -42,6 +42,7 @@ struct pcm_stream_info {
 	void *arg;
 	void (*period_elapsed) (void *arg);
 	unsigned long long buffer_ptr;
+	unsigned long long pcm_delay;
 	int sfreq;
 };
 
-- 
1.7.0.4



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