ASoC: AD1836: Add AD1835/AD1837/AD1838/AD1839 support
[pandora-kernel.git] / sound / soc / codecs / ad1836.c
index a2de8a5..ad4c067 100644 (file)
 #include <linux/spi/spi.h>
 #include "ad1836.h"
 
+enum ad1836_type {
+       AD1835,
+       AD1836,
+       AD1838,
+};
+
 /* codec private data */
 struct ad1836_priv {
        enum snd_soc_control_type control_type;
        void *control_data;
+       enum ad1836_type type;
 };
 
 /*
@@ -56,21 +63,48 @@ static const struct soc_enum ad1836_deemp_enum =
        SOC_DOUBLE("ADC" #x " Capture Switch", AD1836_ADC_CTRL2, \
                AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1)
 
-static const struct snd_kcontrol_new ad1836_snd_controls[] = {
-       /* DAC volume control */
+static const struct snd_kcontrol_new ad183x_dac_controls[] = {
        AD1836_DAC_VOLUME(1),
+       AD1836_DAC_SWITCH(1),
        AD1836_DAC_VOLUME(2),
+       AD1836_DAC_SWITCH(2),
        AD1836_DAC_VOLUME(3),
+       AD1836_DAC_SWITCH(3),
+       AD1836_DAC_VOLUME(4),
+       AD1836_DAC_SWITCH(4),
+};
+
+static const struct snd_soc_dapm_widget ad183x_dac_dapm_widgets[] = {
+       SND_SOC_DAPM_OUTPUT("DAC1OUT"),
+       SND_SOC_DAPM_OUTPUT("DAC2OUT"),
+       SND_SOC_DAPM_OUTPUT("DAC3OUT"),
+       SND_SOC_DAPM_OUTPUT("DAC4OUT"),
+};
+
+static const struct snd_soc_dapm_route ad183x_dac_routes[] = {
+       { "DAC1OUT", NULL, "DAC" },
+       { "DAC2OUT", NULL, "DAC" },
+       { "DAC3OUT", NULL, "DAC" },
+       { "DAC4OUT", NULL, "DAC" },
+};
 
-       /* ADC switch control */
+static const struct snd_kcontrol_new ad183x_adc_controls[] = {
        AD1836_ADC_SWITCH(1),
        AD1836_ADC_SWITCH(2),
+       AD1836_ADC_SWITCH(3),
+};
 
-       /* DAC switch control */
-       AD1836_DAC_SWITCH(1),
-       AD1836_DAC_SWITCH(2),
-       AD1836_DAC_SWITCH(3),
+static const struct snd_soc_dapm_widget ad183x_adc_dapm_widgets[] = {
+       SND_SOC_DAPM_INPUT("ADC1IN"),
+       SND_SOC_DAPM_INPUT("ADC2IN"),
+};
+
+static const struct snd_soc_dapm_route ad183x_adc_routes[] = {
+       { "ADC", NULL, "ADC1IN" },
+       { "ADC", NULL, "ADC2IN" },
+};
 
+static const struct snd_kcontrol_new ad183x_controls[] = {
        /* ADC high-pass filter */
        SOC_SINGLE("ADC High Pass Filter Switch", AD1836_ADC_CTRL1,
                        AD1836_ADC_HIGHPASS_FILTER, 1, 0),
@@ -79,27 +113,17 @@ static const struct snd_kcontrol_new ad1836_snd_controls[] = {
        SOC_ENUM("Playback Deemphasis", ad1836_deemp_enum),
 };
 
-static const struct snd_soc_dapm_widget ad1836_dapm_widgets[] = {
+static const struct snd_soc_dapm_widget ad183x_dapm_widgets[] = {
        SND_SOC_DAPM_DAC("DAC", "Playback", AD1836_DAC_CTRL1,
                                AD1836_DAC_POWERDOWN, 1),
        SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_SUPPLY("ADC_PWR", AD1836_ADC_CTRL1,
                                AD1836_ADC_POWERDOWN, 1, NULL, 0),
-       SND_SOC_DAPM_OUTPUT("DAC1OUT"),
-       SND_SOC_DAPM_OUTPUT("DAC2OUT"),
-       SND_SOC_DAPM_OUTPUT("DAC3OUT"),
-       SND_SOC_DAPM_INPUT("ADC1IN"),
-       SND_SOC_DAPM_INPUT("ADC2IN"),
 };
 
-static const struct snd_soc_dapm_route audio_paths[] = {
+static const struct snd_soc_dapm_route ad183x_dapm_routes[] = {
        { "DAC", NULL, "ADC_PWR" },
        { "ADC", NULL, "ADC_PWR" },
-       { "DAC1OUT", "DAC1 Switch", "DAC" },
-       { "DAC2OUT", "DAC2 Switch", "DAC" },
-       { "DAC3OUT", "DAC3 Switch", "DAC" },
-       { "ADC", "ADC1 Switch", "ADC1IN" },
-       { "ADC", "ADC2 Switch", "ADC2IN" },
 };
 
 /*
@@ -194,33 +218,44 @@ static struct snd_soc_dai_ops ad1836_dai_ops = {
        .set_fmt = ad1836_set_dai_fmt,
 };
 
-/* codec DAI instance */
-static struct snd_soc_dai_driver ad1836_dai = {
-       .name = "ad1836-hifi",
-       .playback = {
-               .stream_name = "Playback",
-               .channels_min = 2,
-               .channels_max = 6,
-               .rates = SNDRV_PCM_RATE_48000,
-               .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
-                       SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
-       },
-       .capture = {
-               .stream_name = "Capture",
-               .channels_min = 2,
-               .channels_max = 4,
-               .rates = SNDRV_PCM_RATE_48000,
-               .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
-                       SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
-       },
-       .ops = &ad1836_dai_ops,
+#define AD183X_DAI(_name, num_dacs, num_adcs) \
+{ \
+       .name = _name "-hifi", \
+       .playback = { \
+               .stream_name = "Playback", \
+               .channels_min = 2, \
+               .channels_max = (num_dacs) * 2, \
+               .rates = SNDRV_PCM_RATE_48000,  \
+               .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \
+                       SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \
+       }, \
+       .capture = { \
+               .stream_name = "Capture", \
+               .channels_min = 2, \
+               .channels_max = (num_adcs) * 2, \
+               .rates = SNDRV_PCM_RATE_48000, \
+               .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \
+                       SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \
+       }, \
+       .ops = &ad1836_dai_ops, \
+}
+
+static struct snd_soc_dai_driver ad183x_dais[] = {
+       [AD1835] = AD183X_DAI("ad1835", 4, 1),
+       [AD1836] = AD183X_DAI("ad1836", 3, 2),
+       [AD1838] = AD183X_DAI("ad1838", 3, 1),
 };
 
 static int ad1836_probe(struct snd_soc_codec *codec)
 {
        struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec);
        struct snd_soc_dapm_context *dapm = &codec->dapm;
+       int num_dacs, num_adcs;
        int ret = 0;
+       int i;
+
+       num_dacs = ad183x_dais[ad1836->type].playback.channels_max / 2;
+       num_adcs = ad183x_dais[ad1836->type].capture.channels_max / 2;
 
        codec->control_data = ad1836->control_data;
        ret = snd_soc_codec_set_cache_io(codec, 4, 12, SND_SOC_SPI);
@@ -239,21 +274,42 @@ static int ad1836_probe(struct snd_soc_codec *codec)
        snd_soc_write(codec, AD1836_ADC_CTRL1, 0x100);
        /* unmute adc channles, adc aux mode */
        snd_soc_write(codec, AD1836_ADC_CTRL2, 0x180);
-       /* left/right diff:PGA/MUX */
-       snd_soc_write(codec, AD1836_ADC_CTRL3, 0x3A);
        /* volume */
-       snd_soc_write(codec, AD1836_DAC_L_VOL(1), 0x3FF);
-       snd_soc_write(codec, AD1836_DAC_R_VOL(1), 0x3FF);
-       snd_soc_write(codec, AD1836_DAC_L_VOL(2), 0x3FF);
-       snd_soc_write(codec, AD1836_DAC_R_VOL(2), 0x3FF);
-       snd_soc_write(codec, AD1836_DAC_L_VOL(3), 0x3FF);
-       snd_soc_write(codec, AD1836_DAC_R_VOL(3), 0x3FF);
-
-       snd_soc_add_controls(codec, ad1836_snd_controls,
-                            ARRAY_SIZE(ad1836_snd_controls));
-       snd_soc_dapm_new_controls(dapm, ad1836_dapm_widgets,
-                                 ARRAY_SIZE(ad1836_dapm_widgets));
-       snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
+       for (i = 1; i <= num_dacs; ++i) {
+               snd_soc_write(codec, AD1836_DAC_L_VOL(i), 0x3FF);
+               snd_soc_write(codec, AD1836_DAC_R_VOL(i), 0x3FF);
+       }
+
+       if (ad1836->type == AD1836) {
+               /* left/right diff:PGA/MUX */
+               snd_soc_write(codec, AD1836_ADC_CTRL3, 0x3A);
+       } else {
+               snd_soc_write(codec, AD1836_ADC_CTRL3, 0x00);
+       }
+
+       ret = snd_soc_add_controls(codec, ad183x_dac_controls, num_dacs * 2);
+       if (ret)
+               return ret;
+
+       ret = snd_soc_add_controls(codec, ad183x_adc_controls, num_adcs);
+       if (ret)
+               return ret;
+
+       ret = snd_soc_dapm_new_controls(dapm, ad183x_dac_dapm_widgets, num_dacs);
+       if (ret)
+               return ret;
+
+       ret = snd_soc_dapm_new_controls(dapm, ad183x_adc_dapm_widgets, num_adcs);
+       if (ret)
+               return ret;
+
+       ret = snd_soc_dapm_add_routes(dapm, ad183x_dac_routes, num_dacs);
+       if (ret)
+               return ret;
+
+       ret = snd_soc_dapm_add_routes(dapm, ad183x_adc_routes, num_adcs);
+       if (ret)
+               return ret;
 
        return ret;
 }
@@ -273,6 +329,13 @@ static struct snd_soc_codec_driver soc_codec_dev_ad1836 = {
        .resume =       ad1836_soc_resume,
        .reg_cache_size = AD1836_NUM_REGS,
        .reg_word_size = sizeof(u16),
+
+       .controls = ad183x_controls,
+       .num_controls = ARRAY_SIZE(ad183x_controls),
+       .dapm_widgets = ad183x_dapm_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(ad183x_dapm_widgets),
+       .dapm_routes = ad183x_dapm_routes,
+       .num_dapm_routes = ARRAY_SIZE(ad183x_dapm_routes),
 };
 
 static int __devinit ad1836_spi_probe(struct spi_device *spi)
@@ -284,12 +347,14 @@ static int __devinit ad1836_spi_probe(struct spi_device *spi)
        if (ad1836 == NULL)
                return -ENOMEM;
 
+       ad1836->type = spi_get_device_id(spi)->driver_data;
+
        spi_set_drvdata(spi, ad1836);
        ad1836->control_data = spi;
        ad1836->control_type = SND_SOC_SPI;
 
        ret = snd_soc_register_codec(&spi->dev,
-                       &soc_codec_dev_ad1836, &ad1836_dai, 1);
+                       &soc_codec_dev_ad1836, &ad183x_dais[ad1836->type], 1);
        if (ret < 0)
                kfree(ad1836);
        return ret;
@@ -301,6 +366,15 @@ static int __devexit ad1836_spi_remove(struct spi_device *spi)
        kfree(spi_get_drvdata(spi));
        return 0;
 }
+static const struct spi_device_id ad1836_ids[] = {
+       { "ad1835", AD1835 },
+       { "ad1836", AD1836 },
+       { "ad1837", AD1835 },
+       { "ad1838", AD1838 },
+       { "ad1839", AD1838 },
+       { },
+};
+MODULE_DEVICE_TABLE(spi, ad1836_ids);
 
 static struct spi_driver ad1836_spi_driver = {
        .driver = {
@@ -309,6 +383,7 @@ static struct spi_driver ad1836_spi_driver = {
        },
        .probe          = ad1836_spi_probe,
        .remove         = __devexit_p(ad1836_spi_remove),
+       .id_table       = ad1836_ids,
 };
 
 static int __init ad1836_init(void)