[alsa-devel] [PATCH 6/7] ASoC: mediatek: add BT implementation
Garlic Tseng
garlic.tseng at mediatek.com
Fri Apr 29 06:00:47 PDT 2016
Add BT implementation for mt2701 platform driver.
Signed-off-by: Garlic Tseng <garlic.tseng at mediatek.com>
---
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 138 ++++++++++++++++++++++++++++-
1 file changed, 137 insertions(+), 1 deletion(-)
diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
index 6cdc25e..88a6c1b 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
@@ -387,6 +387,86 @@ static int mt2701_afe_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
return 0;
}
+static int mt2701_btmrg_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON4,
+ AUDIO_TOP_CON4_PDN_MRGIF, 0);
+
+ afe->mrg_enable[substream->stream] = 1;
+ return 0;
+}
+
+static int mt2701_btmrg_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+ int stream_fs;
+ u32 val, msk;
+
+ pr_debug("%s() cpu_dai id %d\n", __func__, dai->id);
+ stream_fs = params_rate(params);
+
+ if ((stream_fs != 8000) && (stream_fs != 16000)) {
+ pr_err("%s() btmgr not supprt this stream_fs %d\n",
+ __func__, stream_fs);
+ return -EINVAL;
+ }
+
+ regmap_update_bits(afe->regmap,
+ AFE_MRGIF_CON,
+ AFE_MRGIF_CON_I2S_MODE_MASK,
+ AFE_MRGIF_CON_I2S_MODE_32K);
+
+ val = AFE_DAIBT_CON0_BT_FUNC_EN | AFE_DAIBT_CON0_BT_FUNC_RDY
+ | AFE_DAIBT_CON0_MRG_USE;
+ msk = val;
+
+ if (stream_fs == 16000)
+ val |= AFE_DAIBT_CON0_BT_WIDE_MODE_EN;
+
+ msk |= AFE_DAIBT_CON0_BT_WIDE_MODE_EN;
+
+ regmap_update_bits(afe->regmap, AFE_DAIBT_CON0, msk, val);
+
+ regmap_write(afe->regmap, AFE_BT_SECURITY0, AFE_BT_SECURITY0_INIT_VAL);
+ regmap_write(afe->regmap, AFE_BT_SECURITY1, AFE_BT_SECURITY1_INIT_VAL);
+ regmap_update_bits(afe->regmap, AFE_DAIBT_CON0, AFE_DAIBT_CON0_DAIBT_EN,
+ AFE_DAIBT_CON0_DAIBT_EN);
+ regmap_update_bits(afe->regmap, AFE_MRGIF_CON, AFE_MRGIF_CON_MRG_I2S_EN,
+ AFE_MRGIF_CON_MRG_I2S_EN);
+ regmap_update_bits(afe->regmap, AFE_MRGIF_CON, AFE_MRGIF_CON_MRG_EN,
+ AFE_MRGIF_CON_MRG_EN);
+ return 0;
+}
+
+static void mt2701_btmrg_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct mt2701_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
+
+ pr_debug("%s() cpu_dai id %d\n", __func__, dai->id);
+ /* if the other direction stream is not occupied */
+ if (!afe->mrg_enable[!substream->stream]) {
+ regmap_update_bits(afe->regmap, AFE_DAIBT_CON0,
+ AFE_DAIBT_CON0_DAIBT_EN, 0);
+ regmap_update_bits(afe->regmap, AFE_MRGIF_CON,
+ AFE_MRGIF_CON_MRG_EN, 0);
+ regmap_update_bits(afe->regmap, AFE_MRGIF_CON,
+ AFE_MRGIF_CON_MRG_I2S_EN, 0);
+ regmap_update_bits(afe->regmap, AUDIO_TOP_CON4,
+ AUDIO_TOP_CON4_PDN_MRGIF,
+ AUDIO_TOP_CON4_PDN_MRGIF);
+ }
+ afe->mrg_enable[substream->stream] = 0;
+}
+
static int mt2701_playback_mem_avail(struct mt2701_afe *afe, int memif_num)
{
struct mt2701_afe_memif *memif_tmp;
@@ -554,8 +634,12 @@ static int mt2701_afe_dais_hw_params(struct snd_pcm_substream *substream,
/* set rate */
if (memif->data->fs_shift < 0)
return 0;
+ if (rtd->cpu_dai->id != MT2701_MEMIF_BT ||
+ stream_dir != SNDRV_PCM_STREAM_CAPTURE)
+ fs = mt2701_afe_i2s_fs(params_rate(params));
+ else
+ fs = (params_rate(params) == 16000) ? 1 : 0;
- fs = mt2701_afe_i2s_fs(params_rate(params));
if (fs < 0)
return -EINVAL;
@@ -746,6 +830,13 @@ static const struct snd_soc_dai_ops mt2701_afe_i2s_ops = {
.set_fmt = mt2701_afe_i2s_set_fmt,
};
+/* MRG BE DAIs*/
+static struct snd_soc_dai_ops mt2701_btmrg_ops = {
+ .startup = mt2701_btmrg_startup,
+ .shutdown = mt2701_btmrg_shutdown,
+ .hw_params = mt2701_btmrg_hw_params,
+};
+
static int mt2701_afe_runtime_suspend(struct device *dev);
static int mt2701_afe_runtime_resume(struct device *dev);
@@ -845,6 +936,29 @@ static struct snd_soc_dai_driver mt2701_afe_pcm_dais[] = {
},
.ops = &mt2701_afe_dai_ops,
},
+ {
+ .name = "PCM_BT",
+ .id = MT2701_MEMIF_BT,
+ .suspend = mt2701_afe_dai_suspend,
+ .resume = mt2701_afe_dai_resume,
+ .playback = {
+ .stream_name = "DLBT",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = (SNDRV_PCM_RATE_8000
+ | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "ULBT",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = (SNDRV_PCM_RATE_8000
+ | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &mt2701_afe_dai_ops,
+ },
/* BE DAIs */
{
.name = "I2S0",
@@ -944,6 +1058,28 @@ static struct snd_soc_dai_driver mt2701_afe_pcm_dais[] = {
.ops = &mt2701_afe_i2s_ops,
.symmetric_rates = 1,
},
+ {
+ .name = "MRG BT",
+ .id = MT2701_IO_MRG,
+ .playback = {
+ .stream_name = "BT Playback",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = (SNDRV_PCM_RATE_8000
+ | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "BT Capture",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = (SNDRV_PCM_RATE_8000
+ | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &mt2701_btmrg_ops,
+ .symmetric_rates = 1,
+ }
};
static const struct snd_kcontrol_new mt2701_afe_o00_mix[] = {
--
1.9.1
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