[PATCHv2 2/5] ASoC: core: soc level wrapper for pcm_pointer callback

Peter Ujfalusi
2010-03-03T13:08:06Z

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>
---
sound/soc/soc-core.c | 19 ++++++++++++++++++-
1 files changed, 18 insertions(+), 1 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 37c872e..de5223d 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -797,6 +797,23 @@ 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,
@@ -805,6 +822,7 @@ 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
@@ -1331,7 +1349,6 @@ 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;
--
1.7.0