diff options
Diffstat (limited to 'sound/soc/codecs/twl4030.c')
| -rw-r--r-- | sound/soc/codecs/twl4030.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index eaf91ab..e4d683d 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -1629,6 +1629,28 @@ static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, return 0; } +/* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R + * (VTXL, VTXR) for uplink has to be enabled/disabled. */ +static void twl4030_voice_enable(struct snd_soc_codec *codec, int direction, + int enable) +{ + u8 reg, mask; + + reg = twl4030_read_reg_cache(codec, TWL4030_REG_OPTION); + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) + mask = TWL4030_ARXL1_VRX_EN; + else + mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN; + + if (enable) + reg |= mask; + else + reg &= ~mask; + + twl4030_write(codec, TWL4030_REG_OPTION, reg); +} + static int twl4030_voice_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -1665,6 +1687,17 @@ static int twl4030_voice_startup(struct snd_pcm_substream *substream, return 0; } +static void twl4030_voice_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_codec *codec = socdev->card->codec; + + /* Enable voice digital filters */ + twl4030_voice_enable(codec, substream->stream, 0); +} + static int twl4030_voice_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { @@ -1673,6 +1706,9 @@ static int twl4030_voice_hw_params(struct snd_pcm_substream *substream, struct snd_soc_codec *codec = socdev->card->codec; u8 old_mode, mode; + /* Enable voice digital filters */ + twl4030_voice_enable(codec, substream->stream, 1); + /* bit rate */ old_mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) & ~(TWL4030_CODECPDZ); @@ -1780,6 +1816,7 @@ static struct snd_soc_dai_ops twl4030_dai_ops = { static struct snd_soc_dai_ops twl4030_dai_voice_ops = { .startup = twl4030_voice_startup, + .shutdown = twl4030_voice_shutdown, .hw_params = twl4030_voice_hw_params, .set_sysclk = twl4030_voice_set_dai_sysclk, .set_fmt = twl4030_voice_set_dai_fmt, |
