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authorBarry Song <21cnbao@gmail.com>2009-09-12 01:16:29 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-09-13 12:37:53 +0100
commit472df3cbae8da6a949f1392a11958b8d21383735 (patch)
tree0e8c33fdf2de2cd970c29e7baf52a70fde005a59 /include/sound/soc-dai.h
parent2312fd8f6b252b7d3c1d74b20c75b7bff98bab65 (diff)
downloadop-kernel-dev-472df3cbae8da6a949f1392a11958b8d21383735.zip
op-kernel-dev-472df3cbae8da6a949f1392a11958b8d21383735.tar.gz
ASoC: Provide API for reordering channels
The patch adds an interface to set the relationship between audio channel number and slot number. The interface should be really useful because audio channel n doesn't always use slot n in all platforms. And for some devices, the relationship even can change with sound mode switch in 2.1,3.1,4.1,5.1,6.1,7.1 etc. Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound/soc-dai.h')
-rw-r--r--include/sound/soc-dai.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 16963d4..e0c7fa7 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -114,6 +114,10 @@ int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width);
+int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
+ unsigned int tx_num, unsigned int *tx_slot,
+ unsigned int rx_num, unsigned int *rx_slot);
+
int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
/* Digital Audio Interface mute */
@@ -148,6 +152,9 @@ struct snd_soc_dai_ops {
int (*set_tdm_slot)(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask,
int slots, int slot_width);
+ int (*set_channel_map)(struct snd_soc_dai *dai,
+ unsigned int tx_num, unsigned int *tx_slot,
+ unsigned int rx_num, unsigned int *rx_slot);
int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
/*
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