ASoC: core: soc level wrapper for pcm_pointer callback

Create a soc level wrapper for pcm_pointer callback.
This will facilitate the soc level handling of different
HW buffers in the audio path.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 18 insertions, 1 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 7b4179eca893..feb572c616cd 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -800,6 +800,23 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
         return 0;
 }
 
+/*
+ * soc level wrapper for pointer callback
+ */
+static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_device *socdev = rtd->socdev;
+        struct snd_soc_card *card = socdev->card;
+        struct snd_soc_platform *platform = card->platform;
+        snd_pcm_uframes_t offset = 0;
+
+        if (platform->pcm_ops->pointer)
+                offset = platform->pcm_ops->pointer(substream);
+
+        return offset;
+}
+
 /* ASoC PCM operations */
 static struct snd_pcm_ops soc_pcm_ops = {
         .open           = soc_pcm_open,
@@ -808,6 +825,7 @@ static struct snd_pcm_ops soc_pcm_ops = {
         .hw_free        = soc_pcm_hw_free,
         .prepare        = soc_pcm_prepare,
         .trigger        = soc_pcm_trigger,
+        .pointer        = soc_pcm_pointer,
 };
 
 #ifdef CONFIG_PM
@@ -1328,7 +1346,6 @@ static int soc_new_pcm(struct snd_soc_device *socdev,
         dai_link->pcm = pcm;
         pcm->private_data = rtd;
         soc_pcm_ops.mmap = platform->pcm_ops->mmap;
-        soc_pcm_ops.pointer = platform->pcm_ops->pointer;
         soc_pcm_ops.ioctl = platform->pcm_ops->ioctl;
         soc_pcm_ops.copy = platform->pcm_ops->copy;
         soc_pcm_ops.silence = platform->pcm_ops->silence;