1 files changed, 168 insertions, 5 deletions

diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index a1b76d7fd130..cc2968cf6409 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -1484,6 +1484,144 @@ static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai,
         return 0;
 }
 
+static int twl4030_voice_startup(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;
+        u8 infreq;
+        u8 mode;
+
+        /* If the system master clock is not 26MHz, the voice PCM interface is
+         * not avilable.
+         */
+        infreq = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL)
+                & TWL4030_APLL_INFREQ;
+
+        if (infreq != TWL4030_APLL_INFREQ_26000KHZ) {
+                printk(KERN_ERR "TWL4030 voice startup: "
+                        "MCLK is not 26MHz, call set_sysclk() on init\n");
+                return -EINVAL;
+        }
+
+        /* If the codec mode is not option2, the voice PCM interface is not
+         * avilable.
+         */
+        mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
+                & TWL4030_OPT_MODE;
+
+        if (mode != TWL4030_OPTION_2) {
+                printk(KERN_ERR "TWL4030 voice startup: "
+                        "the codec mode is not option2\n");
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static int twl4030_voice_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 snd_soc_device *socdev = rtd->socdev;
+        struct snd_soc_codec *codec = socdev->card->codec;
+        u8 old_mode, mode;
+
+        /* bit rate */
+        old_mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
+                & ~(TWL4030_CODECPDZ);
+        mode = old_mode;
+
+        switch (params_rate(params)) {
+        case 8000:
+                mode &= ~(TWL4030_SEL_16K);
+                break;
+        case 16000:
+                mode |= TWL4030_SEL_16K;
+                break;
+        default:
+                printk(KERN_ERR "TWL4030 voice hw params: unknown rate %d\n",
+                        params_rate(params));
+                return -EINVAL;
+        }
+
+        if (mode != old_mode) {
+                /* change rate and set CODECPDZ */
+                twl4030_codec_enable(codec, 0);
+                twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
+                twl4030_codec_enable(codec, 1);
+        }
+
+        return 0;
+}
+
+static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+                int clk_id, unsigned int freq, int dir)
+{
+        struct snd_soc_codec *codec = codec_dai->codec;
+        u8 infreq;
+
+        switch (freq) {
+        case 26000000:
+                infreq = TWL4030_APLL_INFREQ_26000KHZ;
+                break;
+        default:
+                printk(KERN_ERR "TWL4030 voice set sysclk: unknown rate %d\n",
+                        freq);
+                return -EINVAL;
+        }
+
+        infreq |= TWL4030_APLL_EN;
+        twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq);
+
+        return 0;
+}
+
+static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
+                unsigned int fmt)
+{
+        struct snd_soc_codec *codec = codec_dai->codec;
+        u8 old_format, format;
+
+        /* get format */
+        old_format = twl4030_read_reg_cache(codec, TWL4030_REG_VOICE_IF);
+        format = old_format;
+
+        /* set master/slave audio interface */
+        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+        case SND_SOC_DAIFMT_CBS_CFM:
+                format &= ~(TWL4030_VIF_SLAVE_EN);
+                break;
+        case SND_SOC_DAIFMT_CBS_CFS:
+                format |= TWL4030_VIF_SLAVE_EN;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        /* clock inversion */
+        switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+        case SND_SOC_DAIFMT_IB_NF:
+                format &= ~(TWL4030_VIF_FORMAT);
+                break;
+        case SND_SOC_DAIFMT_NB_IF:
+                format |= TWL4030_VIF_FORMAT;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        if (format != old_format) {
+                /* change format and set CODECPDZ */
+                twl4030_codec_enable(codec, 0);
+                twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
+                twl4030_codec_enable(codec, 1);
+        }
+
+        return 0;
+}
+
 #define TWL4030_RATES    (SNDRV_PCM_RATE_8000_48000)
 #define TWL4030_FORMATS  (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE)
 
@@ -1495,7 +1633,15 @@ static struct snd_soc_dai_ops twl4030_dai_ops = {
         .set_fmt        = twl4030_set_dai_fmt,
 };
 
-struct snd_soc_dai twl4030_dai = {
+static struct snd_soc_dai_ops twl4030_dai_voice_ops = {
+        .startup        = twl4030_voice_startup,
+        .hw_params      = twl4030_voice_hw_params,
+        .set_sysclk     = twl4030_voice_set_dai_sysclk,
+        .set_fmt        = twl4030_voice_set_dai_fmt,
+};
+
+struct snd_soc_dai twl4030_dai[] = {
+{
         .name = "twl4030",
         .playback = {
                 .stream_name = "Playback",
@@ -1510,6 +1656,23 @@ struct snd_soc_dai twl4030_dai = {
                 .rates = TWL4030_RATES,
                 .formats = TWL4030_FORMATS,},
         .ops = &twl4030_dai_ops,
+},
+{
+        .name = "twl4030 Voice",
+        .playback = {
+                .stream_name = "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 = "Capture",
+                .channels_min = 1,
+                .channels_max = 2,
+                .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
+                .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+        .ops = &twl4030_dai_voice_ops,
+},
 };
 EXPORT_SYMBOL_GPL(twl4030_dai);
 
@@ -1550,8 +1713,8 @@ static int twl4030_init(struct snd_soc_device *socdev)
         codec->read = twl4030_read_reg_cache;
         codec->write = twl4030_write;
         codec->set_bias_level = twl4030_set_bias_level;
-        codec->dai = &twl4030_dai;
-        codec->num_dai = 1;
+        codec->dai = twl4030_dai;
+        codec->num_dai = ARRAY_SIZE(twl4030_dai),
         codec->reg_cache_size = sizeof(twl4030_reg);
         codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg),
                                         GFP_KERNEL);
@@ -1645,13 +1808,13 @@ EXPORT_SYMBOL_GPL(soc_codec_dev_twl4030);
 
 static int __init twl4030_modinit(void)
 {
-        return snd_soc_register_dai(&twl4030_dai);
+        return snd_soc_register_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
 }
 module_init(twl4030_modinit);
 
 static void __exit twl4030_exit(void)
 {
-        snd_soc_unregister_dai(&twl4030_dai);
+        snd_soc_unregister_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
 }
 module_exit(twl4030_exit);