-/*
- * File: sound/soc/codecs/ad1836.c
- * Author: Barry Song <Barry.Song@analog.com>
- *
- * Created: Aug 04 2009
- * Description: Driver for AD1836 sound chip
+ /*
+ * Audio Codec driver supporting:
+ * AD1835A, AD1836, AD1837A, AD1838A, AD1839A
*
- * Modified:
- * Copyright 2009 Analog Devices Inc.
+ * Copyright 2009-2011 Analog Devices Inc.
*
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * Licensed under the GPL-2 or later.
*/
#include <linux/init.h>
#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;
};
/*
static const struct soc_enum ad1836_deemp_enum =
SOC_ENUM_SINGLE(AD1836_DAC_CTRL1, 8, 4, ad1836_deemp);
-static const struct snd_kcontrol_new ad1836_snd_controls[] = {
- /* DAC volume control */
- SOC_DOUBLE_R("DAC1 Volume", AD1836_DAC_L1_VOL,
- AD1836_DAC_R1_VOL, 0, 0x3FF, 0),
- SOC_DOUBLE_R("DAC2 Volume", AD1836_DAC_L2_VOL,
- AD1836_DAC_R2_VOL, 0, 0x3FF, 0),
- SOC_DOUBLE_R("DAC3 Volume", AD1836_DAC_L3_VOL,
- AD1836_DAC_R3_VOL, 0, 0x3FF, 0),
-
- /* ADC switch control */
- SOC_DOUBLE("ADC1 Switch", AD1836_ADC_CTRL2, AD1836_ADCL1_MUTE,
- AD1836_ADCR1_MUTE, 1, 1),
- SOC_DOUBLE("ADC2 Switch", AD1836_ADC_CTRL2, AD1836_ADCL2_MUTE,
- AD1836_ADCR2_MUTE, 1, 1),
-
- /* DAC switch control */
- SOC_DOUBLE("DAC1 Switch", AD1836_DAC_CTRL2, AD1836_DACL1_MUTE,
- AD1836_DACR1_MUTE, 1, 1),
- SOC_DOUBLE("DAC2 Switch", AD1836_DAC_CTRL2, AD1836_DACL2_MUTE,
- AD1836_DACR2_MUTE, 1, 1),
- SOC_DOUBLE("DAC3 Switch", AD1836_DAC_CTRL2, AD1836_DACL3_MUTE,
- AD1836_DACR3_MUTE, 1, 1),
+#define AD1836_DAC_VOLUME(x) \
+ SOC_DOUBLE_R("DAC" #x " Playback Volume", AD1836_DAC_L_VOL(x), \
+ AD1836_DAC_R_VOL(x), 0, 0x3FF, 0)
+
+#define AD1836_DAC_SWITCH(x) \
+ SOC_DOUBLE("DAC" #x " Playback Switch", AD1836_DAC_CTRL2, \
+ AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1)
+
+#define AD1836_ADC_SWITCH(x) \
+ 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 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" },
+};
+
+static const struct snd_kcontrol_new ad183x_adc_controls[] = {
+ AD1836_ADC_SWITCH(1),
+ AD1836_ADC_SWITCH(2),
+ AD1836_ADC_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),
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" },
+};
+
+static const DECLARE_TLV_DB_SCALE(ad1836_in_tlv, 0, 300, 0);
+
+static const struct snd_kcontrol_new ad1836_controls[] = {
+ SOC_DOUBLE_TLV("ADC2 Capture Volume", AD1836_ADC_CTRL1, 3, 0, 4, 0,
+ ad1836_in_tlv),
};
/*
/* bit size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
- word_len = 3;
+ word_len = AD1836_WORD_LEN_16;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
- word_len = 1;
+ word_len = AD1836_WORD_LEN_20;
break;
case SNDRV_PCM_FORMAT_S24_LE:
case SNDRV_PCM_FORMAT_S32_LE:
- word_len = 0;
+ word_len = AD1836_WORD_LEN_24;
break;
}
- snd_soc_update_bits(codec, AD1836_DAC_CTRL1,
- AD1836_DAC_WORD_LEN_MASK, word_len);
+ snd_soc_update_bits(codec, AD1836_DAC_CTRL1, AD1836_DAC_WORD_LEN_MASK,
+ word_len << AD1836_DAC_WORD_LEN_OFFSET);
- snd_soc_update_bits(codec, AD1836_ADC_CTRL2,
- AD1836_ADC_WORD_LEN_MASK, word_len);
+ snd_soc_update_bits(codec, AD1836_ADC_CTRL2, AD1836_ADC_WORD_LEN_MASK,
+ word_len << AD1836_ADC_WORD_OFFSET);
return 0;
}
pm_message_t state)
{
/* reset clock control mode */
- u16 adc_ctrl2 = snd_soc_read(codec, AD1836_ADC_CTRL2);
- adc_ctrl2 &= ~AD1836_ADC_SERFMT_MASK;
-
- return snd_soc_write(codec, AD1836_ADC_CTRL2, adc_ctrl2);
+ return snd_soc_update_bits(codec, AD1836_ADC_CTRL2,
+ AD1836_ADC_SERFMT_MASK, 0);
}
static int ad1836_soc_resume(struct snd_soc_codec *codec)
{
/* restore clock control mode */
- u16 adc_ctrl2 = snd_soc_read(codec, AD1836_ADC_CTRL2);
- adc_ctrl2 |= AD1836_ADC_AUX;
-
- return snd_soc_write(codec, AD1836_ADC_CTRL2, adc_ctrl2);
+ return snd_soc_update_bits(codec, AD1836_ADC_CTRL2,
+ AD1836_ADC_SERFMT_MASK, AD1836_ADC_AUX);
}
#else
#define ad1836_soc_suspend NULL
.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);
if (ret < 0) {
dev_err(codec->dev, "failed to set cache I/O: %d\n",
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_L1_VOL, 0x3FF);
- snd_soc_write(codec, AD1836_DAC_R1_VOL, 0x3FF);
- snd_soc_write(codec, AD1836_DAC_L2_VOL, 0x3FF);
- snd_soc_write(codec, AD1836_DAC_R2_VOL, 0x3FF);
- snd_soc_write(codec, AD1836_DAC_L3_VOL, 0x3FF);
- snd_soc_write(codec, AD1836_DAC_R3_VOL, 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);
+ ret = snd_soc_add_controls(codec, ad1836_controls,
+ ARRAY_SIZE(ad1836_controls));
+ if (ret)
+ return ret;
+ } 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;
}
static int ad1836_remove(struct snd_soc_codec *codec)
{
/* reset clock control mode */
- u16 adc_ctrl2 = snd_soc_read(codec, AD1836_ADC_CTRL2);
- adc_ctrl2 &= ~AD1836_ADC_SERFMT_MASK;
-
- return snd_soc_write(codec, AD1836_ADC_CTRL2, adc_ctrl2);
+ return snd_soc_update_bits(codec, AD1836_ADC_CTRL2,
+ AD1836_ADC_SERFMT_MASK, 0);
}
static struct snd_soc_codec_driver soc_codec_dev_ad1836 = {
- .probe = ad1836_probe,
- .remove = ad1836_remove,
+ .probe = ad1836_probe,
+ .remove = ad1836_remove,
.suspend = ad1836_soc_suspend,
.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)
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;
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 = {
- .name = "ad1836-codec",
+ .name = "ad1836",
.owner = THIS_MODULE,
},
.probe = ad1836_spi_probe,
.remove = __devexit_p(ad1836_spi_remove),
+ .id_table = ad1836_ids,
};
static int __init ad1836_init(void)
{
- int ret;
-
- ret = spi_register_driver(&ad1836_spi_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register ad1836 SPI driver: %d\n",
- ret);
- }
-
- return ret;
+ return spi_register_driver(&ad1836_spi_driver);
}
module_init(ad1836_init);
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