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ASoC: Add driver for cs42l51

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This patch is adding a ASoC driver for the cs42l51 from Cirrus Logic.
Master mode and spi mode are not supported.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.ul>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
apatard@mandriva.com 2010-05-27 14:57:41 +02:00 committed by Mark Brown
parent ea762b047e
commit 72ed5a8c9b
4 changed files with 932 additions and 0 deletions
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4
sound/soc/codecs/Kconfig
View file

@ -22,6 +22,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_AK4642 if I2C
select SND_SOC_AK4671 if I2C
select SND_SOC_CQ0093VC if MFD_DAVINCI_VOICECODEC
select SND_SOC_CS42L51 if I2C
select SND_SOC_CS4270 if I2C
select SND_SOC_MAX9877 if I2C
select SND_SOC_DA7210 if I2C
@ -120,6 +121,9 @@ config SND_SOC_AK4671
config SND_SOC_CQ0093VC
tristate
config SND_SOC_CS42L51
tristate
# Cirrus Logic CS4270 Codec
config SND_SOC_CS4270
tristate

2
sound/soc/codecs/Makefile
View file

@ -9,6 +9,7 @@ snd-soc-ak4535-objs := ak4535.o
snd-soc-ak4642-objs := ak4642.o
snd-soc-ak4671-objs := ak4671.o
snd-soc-cq93vc-objs := cq93vc.o
snd-soc-cs42l51-objs := cs42l51.o
snd-soc-cs4270-objs := cs4270.o
snd-soc-cx20442-objs := cx20442.o
snd-soc-da7210-objs := da7210.o
@ -74,6 +75,7 @@ obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o
obj-$(CONFIG_SND_SOC_AK4642) += snd-soc-ak4642.o
obj-$(CONFIG_SND_SOC_AK4671) += snd-soc-ak4671.o
obj-$(CONFIG_SND_SOC_CQ0093VC) += snd-soc-cq93vc.o
obj-$(CONFIG_SND_SOC_CS42L51) += snd-soc-cs42l51.o
obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
obj-$(CONFIG_SND_SOC_CX20442) += snd-soc-cx20442.o
obj-$(CONFIG_SND_SOC_DA7210) += snd-soc-da7210.o

763
sound/soc/codecs/cs42l51.c Normal file
View file

@ -0,0 +1,763 @@
/*
* cs42l51.c
*
* ASoC Driver for Cirrus Logic CS42L51 codecs
*
* Copyright (c) 2010 Arnaud Patard <apatard@mandriva.com>
*
* Based on cs4270.c - Copyright (c) Freescale Semiconductor
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* For now:
* - Only I2C is support. Not SPI
* - master mode *NOT* supported
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include <sound/initval.h>
#include <sound/pcm_params.h>
#include <sound/pcm.h>
#include <linux/i2c.h>
#include "cs42l51.h"
enum master_slave_mode {
MODE_SLAVE,
MODE_SLAVE_AUTO,
MODE_MASTER,
};
struct cs42l51_private {
unsigned int mclk;
unsigned int audio_mode; /* The mode (I2S or left-justified) */
enum master_slave_mode func;
struct snd_soc_codec codec;
u8 reg_cache[CS42L51_NUMREGS];
};
static struct snd_soc_codec *cs42l51_codec;
#define CS42L51_FORMATS ( \
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | \
SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE | \
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE)
static int cs42l51_fill_cache(struct snd_soc_codec *codec)
{
u8 *cache = codec->reg_cache + 1;
struct i2c_client *i2c_client = codec->control_data;
s32 length;
length = i2c_smbus_read_i2c_block_data(i2c_client,
CS42L51_FIRSTREG | 0x80, CS42L51_NUMREGS, cache);
if (length != CS42L51_NUMREGS) {
dev_err(&i2c_client->dev,
"I2C read failure, addr=0x%x (ret=%d vs %d)\n",
i2c_client->addr, length, CS42L51_NUMREGS);
return -EIO;
}
return 0;
}
static int cs42l51_i2c_probe(struct i2c_client *i2c_client,
const struct i2c_device_id *id)
{
struct snd_soc_codec *codec;
struct cs42l51_private *cs42l51;
int ret = 0;
int reg;
if (cs42l51_codec)
return -EBUSY;
/* Verify that we have a CS42L51 */
ret = i2c_smbus_read_byte_data(i2c_client, CS42L51_CHIP_REV_ID);
if (ret < 0) {
dev_err(&i2c_client->dev, "failed to read I2C\n");
goto error;
}
if ((ret != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_A)) &&
(ret != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_B))) {
dev_err(&i2c_client->dev, "Invalid chip id\n");
ret = -ENODEV;
goto error;
}
dev_info(&i2c_client->dev, "found device cs42l51 rev %d\n",
ret & 7);
cs42l51 = kzalloc(sizeof(struct cs42l51_private), GFP_KERNEL);
if (!cs42l51) {
dev_err(&i2c_client->dev, "could not allocate codec\n");
return -ENOMEM;
}
codec = &cs42l51->codec;
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
codec->dev = &i2c_client->dev;
codec->name = "CS42L51";
codec->owner = THIS_MODULE;
codec->dai = &cs42l51_dai;
codec->num_dai = 1;
snd_soc_codec_set_drvdata(codec, cs42l51);
codec->control_data = i2c_client;
codec->reg_cache = cs42l51->reg_cache;
codec->reg_cache_size = CS42L51_NUMREGS;
i2c_set_clientdata(i2c_client, codec);
ret = cs42l51_fill_cache(codec);
if (ret < 0) {
dev_err(&i2c_client->dev, "failed to fill register cache\n");
goto error_alloc;
}
ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
if (ret < 0) {
dev_err(&i2c_client->dev, "Failed to set cache I/O: %d\n", ret);
goto error_alloc;
}
/*
* DAC configuration
* - Use signal processor
* - auto mute
* - vol changes immediate
* - no de-emphasize
*/
reg = CS42L51_DAC_CTL_DATA_SEL(1)
| CS42L51_DAC_CTL_AMUTE | CS42L51_DAC_CTL_DACSZ(0);
ret = snd_soc_write(codec, CS42L51_DAC_CTL, reg);
if (ret < 0)
goto error_alloc;
cs42l51_dai.dev = codec->dev;
cs42l51_codec = codec;
ret = snd_soc_register_codec(codec);
if (ret != 0) {
dev_err(codec->dev, "Failed to register codec: %d\n", ret);
goto error_alloc;
}
ret = snd_soc_register_dai(&cs42l51_dai);
if (ret < 0) {
dev_err(&i2c_client->dev, "failed to register DAIe\n");
goto error_reg;
}
return 0;
error_reg:
snd_soc_unregister_codec(codec);
error_alloc:
kfree(cs42l51);
error:
return ret;
}
static int cs42l51_i2c_remove(struct i2c_client *client)
{
struct cs42l51_private *cs42l51 = i2c_get_clientdata(client);
snd_soc_unregister_dai(&cs42l51_dai);
snd_soc_unregister_codec(cs42l51_codec);
cs42l51_codec = NULL;
kfree(cs42l51);
return 0;
}
static const struct i2c_device_id cs42l51_id[] = {
{"cs42l51", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, cs42l51_id);
static struct i2c_driver cs42l51_i2c_driver = {
.driver = {
.name = "CS42L51 I2C",
.owner = THIS_MODULE,
},
.id_table = cs42l51_id,
.probe = cs42l51_i2c_probe,
.remove = cs42l51_i2c_remove,
};
static int cs42l51_get_chan_mix(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned long value = snd_soc_read(codec, CS42L51_PCM_MIXER)&3;
switch (value) {
default:
case 0:
ucontrol->value.integer.value[0] = 0;
break;
/* same value : (L+R)/2 and (R+L)/2 */
case 1:
case 2:
ucontrol->value.integer.value[0] = 1;
break;
case 3:
ucontrol->value.integer.value[0] = 2;
break;
}
return 0;
}
#define CHAN_MIX_NORMAL 0x00
#define CHAN_MIX_BOTH 0x55
#define CHAN_MIX_SWAP 0xFF
static int cs42l51_set_chan_mix(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned char val;
switch (ucontrol->value.integer.value[0]) {
default:
case 0:
val = CHAN_MIX_NORMAL;
break;
case 1:
val = CHAN_MIX_BOTH;
break;
case 2:
val = CHAN_MIX_SWAP;
break;
}
snd_soc_write(codec, CS42L51_PCM_MIXER, val);
return 1;
}
static const DECLARE_TLV_DB_SCALE(adc_pcm_tlv, -5150, 50, 0);
static const DECLARE_TLV_DB_SCALE(tone_tlv, -1050, 150, 0);
/* This is a lie. after -102 db, it stays at -102 */
/* maybe a range would be better */
static const DECLARE_TLV_DB_SCALE(aout_tlv, -11550, 50, 0);
static const DECLARE_TLV_DB_SCALE(boost_tlv, 1600, 1600, 0);
static const char *chan_mix[] = {
"L R",
"L+R",
"R L",
};
static const struct soc_enum cs42l51_chan_mix =
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(chan_mix), chan_mix);
static const struct snd_kcontrol_new cs42l51_snd_controls[] = {
SOC_DOUBLE_R_SX_TLV("PCM Playback Volume",
CS42L51_PCMA_VOL, CS42L51_PCMB_VOL,
7, 0xffffff99, 0x18, adc_pcm_tlv),
SOC_DOUBLE_R("PCM Playback Switch",
CS42L51_PCMA_VOL, CS42L51_PCMB_VOL, 7, 1, 1),
SOC_DOUBLE_R_SX_TLV("Analog Playback Volume",
CS42L51_AOUTA_VOL, CS42L51_AOUTB_VOL,
8, 0xffffff19, 0x18, aout_tlv),
SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume",
CS42L51_ADCA_VOL, CS42L51_ADCB_VOL,
7, 0xffffff99, 0x18, adc_pcm_tlv),
SOC_DOUBLE_R("ADC Mixer Switch",
CS42L51_ADCA_VOL, CS42L51_ADCB_VOL, 7, 1, 1),
SOC_SINGLE("Playback Deemphasis Switch", CS42L51_DAC_CTL, 3, 1, 0),
SOC_SINGLE("Auto-Mute Switch", CS42L51_DAC_CTL, 2, 1, 0),
SOC_SINGLE("Soft Ramp Switch", CS42L51_DAC_CTL, 1, 1, 0),
SOC_SINGLE("Zero Cross Switch", CS42L51_DAC_CTL, 0, 0, 0),
SOC_DOUBLE_TLV("Mic Boost Volume",
CS42L51_MIC_CTL, 0, 1, 1, 0, boost_tlv),
SOC_SINGLE_TLV("Bass Volume", CS42L51_TONE_CTL, 0, 0xf, 1, tone_tlv),
SOC_SINGLE_TLV("Treble Volume", CS42L51_TONE_CTL, 4, 0xf, 1, tone_tlv),
SOC_ENUM_EXT("PCM channel mixer",
cs42l51_chan_mix,
cs42l51_get_chan_mix, cs42l51_set_chan_mix),
};
/*
* to power down, one must:
* 1.) Enable the PDN bit
* 2.) enable power-down for the select channels
* 3.) disable the PDN bit.
*/
static int cs42l51_pdn_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
unsigned long value;
value = snd_soc_read(w->codec, CS42L51_POWER_CTL1);
value &= ~CS42L51_POWER_CTL1_PDN;
switch (event) {
case SND_SOC_DAPM_PRE_PMD:
value |= CS42L51_POWER_CTL1_PDN;
break;
default:
case SND_SOC_DAPM_POST_PMD:
break;
}
snd_soc_update_bits(w->codec, CS42L51_POWER_CTL1,
CS42L51_POWER_CTL1_PDN, value);
return 0;
}
static const char *cs42l51_dac_names[] = {"Direct PCM",
"DSP PCM", "ADC"};
static const struct soc_enum cs42l51_dac_mux_enum =
SOC_ENUM_SINGLE(CS42L51_DAC_CTL, 6, 3, cs42l51_dac_names);
static const struct snd_kcontrol_new cs42l51_dac_mux_controls =
SOC_DAPM_ENUM("Route", cs42l51_dac_mux_enum);
static const char *cs42l51_adcl_names[] = {"AIN1 Left", "AIN2 Left",
"MIC Left", "MIC+preamp Left"};
static const struct soc_enum cs42l51_adcl_mux_enum =
SOC_ENUM_SINGLE(CS42L51_ADC_INPUT, 4, 4, cs42l51_adcl_names);
static const struct snd_kcontrol_new cs42l51_adcl_mux_controls =
SOC_DAPM_ENUM("Route", cs42l51_adcl_mux_enum);
static const char *cs42l51_adcr_names[] = {"AIN1 Right", "AIN2 Right",
"MIC Right", "MIC+preamp Right"};
static const struct soc_enum cs42l51_adcr_mux_enum =
SOC_ENUM_SINGLE(CS42L51_ADC_INPUT, 6, 4, cs42l51_adcr_names);
static const struct snd_kcontrol_new cs42l51_adcr_mux_controls =
SOC_DAPM_ENUM("Route", cs42l51_adcr_mux_enum);
static const struct snd_soc_dapm_widget cs42l51_dapm_widgets[] = {
SND_SOC_DAPM_MICBIAS("Mic Bias", CS42L51_MIC_POWER_CTL, 1, 1),
SND_SOC_DAPM_PGA_E("Left PGA", CS42L51_POWER_CTL1, 3, 1, NULL, 0,
cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD),
SND_SOC_DAPM_PGA_E("Right PGA", CS42L51_POWER_CTL1, 4, 1, NULL, 0,
cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD),
SND_SOC_DAPM_ADC_E("Left ADC", "Left HiFi Capture",
CS42L51_POWER_CTL1, 1, 1,
cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD),
SND_SOC_DAPM_ADC_E("Right ADC", "Right HiFi Capture",
CS42L51_POWER_CTL1, 2, 1,
cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD),
SND_SOC_DAPM_DAC_E("Left DAC", "Left HiFi Playback",
CS42L51_POWER_CTL1, 5, 1,
cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD),
SND_SOC_DAPM_DAC_E("Right DAC", "Right HiFi Playback",
CS42L51_POWER_CTL1, 6, 1,
cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD),
/* analog/mic */
SND_SOC_DAPM_INPUT("AIN1L"),
SND_SOC_DAPM_INPUT("AIN1R"),
SND_SOC_DAPM_INPUT("AIN2L"),
SND_SOC_DAPM_INPUT("AIN2R"),
SND_SOC_DAPM_INPUT("MICL"),
SND_SOC_DAPM_INPUT("MICR"),
SND_SOC_DAPM_MIXER("Mic Preamp Left",
CS42L51_MIC_POWER_CTL, 2, 1, NULL, 0),
SND_SOC_DAPM_MIXER("Mic Preamp Right",
CS42L51_MIC_POWER_CTL, 3, 1, NULL, 0),
/* HP */
SND_SOC_DAPM_OUTPUT("HPL"),
SND_SOC_DAPM_OUTPUT("HPR"),
/* mux */
SND_SOC_DAPM_MUX("DAC Mux", SND_SOC_NOPM, 0, 0,
&cs42l51_dac_mux_controls),
SND_SOC_DAPM_MUX("PGA-ADC Mux Left", SND_SOC_NOPM, 0, 0,
&cs42l51_adcl_mux_controls),
SND_SOC_DAPM_MUX("PGA-ADC Mux Right", SND_SOC_NOPM, 0, 0,
&cs42l51_adcr_mux_controls),
};
static const struct snd_soc_dapm_route cs42l51_routes[] = {
{"HPL", NULL, "Left DAC"},
{"HPR", NULL, "Right DAC"},
{"Left ADC", NULL, "Left PGA"},
{"Right ADC", NULL, "Right PGA"},
{"Mic Preamp Left", NULL, "MICL"},
{"Mic Preamp Right", NULL, "MICR"},
{"PGA-ADC Mux Left", "AIN1 Left", "AIN1L" },
{"PGA-ADC Mux Left", "AIN2 Left", "AIN2L" },
{"PGA-ADC Mux Left", "MIC Left", "MICL" },
{"PGA-ADC Mux Left", "MIC+preamp Left", "Mic Preamp Left" },
{"PGA-ADC Mux Right", "AIN1 Right", "AIN1R" },
{"PGA-ADC Mux Right", "AIN2 Right", "AIN2R" },
{"PGA-ADC Mux Right", "MIC Right", "MICR" },
{"PGA-ADC Mux Right", "MIC+preamp Right", "Mic Preamp Right" },
{"Left PGA", NULL, "PGA-ADC Mux Left"},
{"Right PGA", NULL, "PGA-ADC Mux Right"},
};
static int cs42l51_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int format)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec);
int ret = 0;
switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_RIGHT_J:
cs42l51->audio_mode = format & SND_SOC_DAIFMT_FORMAT_MASK;
break;
default:
dev_err(codec->dev, "invalid DAI format\n");
ret = -EINVAL;
}
switch (format & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
cs42l51->func = MODE_MASTER;
break;
case SND_SOC_DAIFMT_CBS_CFS:
cs42l51->func = MODE_SLAVE_AUTO;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
struct cs42l51_ratios {
unsigned int ratio;
unsigned char speed_mode;
unsigned char mclk;
};
static struct cs42l51_ratios slave_ratios[] = {
{ 512, CS42L51_QSM_MODE, 0 }, { 768, CS42L51_QSM_MODE, 0 },
{ 1024, CS42L51_QSM_MODE, 0 }, { 1536, CS42L51_QSM_MODE, 0 },
{ 2048, CS42L51_QSM_MODE, 0 }, { 3072, CS42L51_QSM_MODE, 0 },
{ 256, CS42L51_HSM_MODE, 0 }, { 384, CS42L51_HSM_MODE, 0 },
{ 512, CS42L51_HSM_MODE, 0 }, { 768, CS42L51_HSM_MODE, 0 },
{ 1024, CS42L51_HSM_MODE, 0 }, { 1536, CS42L51_HSM_MODE, 0 },
{ 128, CS42L51_SSM_MODE, 0 }, { 192, CS42L51_SSM_MODE, 0 },
{ 256, CS42L51_SSM_MODE, 0 }, { 384, CS42L51_SSM_MODE, 0 },
{ 512, CS42L51_SSM_MODE, 0 }, { 768, CS42L51_SSM_MODE, 0 },
{ 128, CS42L51_DSM_MODE, 0 }, { 192, CS42L51_DSM_MODE, 0 },
{ 256, CS42L51_DSM_MODE, 0 }, { 384, CS42L51_DSM_MODE, 0 },
};
static struct cs42l51_ratios slave_auto_ratios[] = {
{ 1024, CS42L51_QSM_MODE, 0 }, { 1536, CS42L51_QSM_MODE, 0 },
{ 2048, CS42L51_QSM_MODE, 1 }, { 3072, CS42L51_QSM_MODE, 1 },
{ 512, CS42L51_HSM_MODE, 0 }, { 768, CS42L51_HSM_MODE, 0 },
{ 1024, CS42L51_HSM_MODE, 1 }, { 1536, CS42L51_HSM_MODE, 1 },
{ 256, CS42L51_SSM_MODE, 0 }, { 384, CS42L51_SSM_MODE, 0 },
{ 512, CS42L51_SSM_MODE, 1 }, { 768, CS42L51_SSM_MODE, 1 },
{ 128, CS42L51_DSM_MODE, 0 }, { 192, CS42L51_DSM_MODE, 0 },
{ 256, CS42L51_DSM_MODE, 1 }, { 384, CS42L51_DSM_MODE, 1 },
};
static int cs42l51_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;
struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec);
struct cs42l51_ratios *ratios = NULL;
int nr_ratios = 0;
unsigned int rates = 0;
unsigned int rate_min = -1;
unsigned int rate_max = 0;
int i;
cs42l51->mclk = freq;
switch (cs42l51->func) {
case MODE_MASTER:
return -EINVAL;
case MODE_SLAVE:
ratios = slave_ratios;
nr_ratios = ARRAY_SIZE(slave_ratios);
break;
case MODE_SLAVE_AUTO:
ratios = slave_auto_ratios;
nr_ratios = ARRAY_SIZE(slave_auto_ratios);
break;
}
for (i = 0; i < nr_ratios; i++) {
unsigned int rate = freq / ratios[i].ratio;
rates |= snd_pcm_rate_to_rate_bit(rate);
if (rate < rate_min)
rate_min = rate;
if (rate > rate_max)
rate_max = rate;
}
rates &= ~SNDRV_PCM_RATE_KNOT;
if (!rates) {
dev_err(codec->dev, "could not find a valid sample rate\n");
return -EINVAL;
}
codec_dai->playback.rates = rates;
codec_dai->playback.rate_min = rate_min;
codec_dai->playback.rate_max = rate_max;
codec_dai->capture.rates = rates;
codec_dai->capture.rate_min = rate_min;
codec_dai->capture.rate_max = rate_max;
return 0;
}
static int cs42l51_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;
struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec);
int ret;
unsigned int i;
unsigned int rate;
unsigned int ratio;
struct cs42l51_ratios *ratios = NULL;
int nr_ratios = 0;
int intf_ctl, power_ctl, fmt;
switch (cs42l51->func) {
case MODE_MASTER:
return -EINVAL;
case MODE_SLAVE:
ratios = slave_ratios;
nr_ratios = ARRAY_SIZE(slave_ratios);
break;
case MODE_SLAVE_AUTO:
ratios = slave_auto_ratios;
nr_ratios = ARRAY_SIZE(slave_auto_ratios);
break;
}
/* Figure out which MCLK/LRCK ratio to use */
rate = params_rate(params); /* Sampling rate, in Hz */
ratio = cs42l51->mclk / rate; /* MCLK/LRCK ratio */
for (i = 0; i < nr_ratios; i++) {
if (ratios[i].ratio == ratio)
break;
}
if (i == nr_ratios) {
/* We did not find a matching ratio */
dev_err(codec->dev, "could not find matching ratio\n");
return -EINVAL;
}
intf_ctl = snd_soc_read(codec, CS42L51_INTF_CTL);
power_ctl = snd_soc_read(codec, CS42L51_MIC_POWER_CTL);
intf_ctl &= ~(CS42L51_INTF_CTL_MASTER | CS42L51_INTF_CTL_ADC_I2S
| CS42L51_INTF_CTL_DAC_FORMAT(7));
power_ctl &= ~(CS42L51_MIC_POWER_CTL_SPEED(3)
| CS42L51_MIC_POWER_CTL_MCLK_DIV2);
switch (cs42l51->func) {
case MODE_MASTER:
intf_ctl |= CS42L51_INTF_CTL_MASTER;
power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode);
break;
case MODE_SLAVE:
power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode);
break;
case MODE_SLAVE_AUTO:
power_ctl |= CS42L51_MIC_POWER_CTL_AUTO;
break;
}
switch (cs42l51->audio_mode) {
case SND_SOC_DAIFMT_I2S:
intf_ctl |= CS42L51_INTF_CTL_ADC_I2S;
intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(CS42L51_DAC_DIF_I2S);
break;
case SND_SOC_DAIFMT_LEFT_J:
intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(CS42L51_DAC_DIF_LJ24);
break;
case SND_SOC_DAIFMT_RIGHT_J:
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
case SNDRV_PCM_FORMAT_S16_BE:
fmt = CS42L51_DAC_DIF_RJ16;
break;
case SNDRV_PCM_FORMAT_S18_3LE:
case SNDRV_PCM_FORMAT_S18_3BE:
fmt = CS42L51_DAC_DIF_RJ18;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
case SNDRV_PCM_FORMAT_S20_3BE:
fmt = CS42L51_DAC_DIF_RJ20;
break;
case SNDRV_PCM_FORMAT_S24_LE:
case SNDRV_PCM_FORMAT_S24_BE:
fmt = CS42L51_DAC_DIF_RJ24;
break;
default:
dev_err(codec->dev, "unknown format\n");
return -EINVAL;
}
intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(fmt);
break;
default:
dev_err(codec->dev, "unknown format\n");
return -EINVAL;
}
if (ratios[i].mclk)
power_ctl |= CS42L51_MIC_POWER_CTL_MCLK_DIV2;
ret = snd_soc_write(codec, CS42L51_INTF_CTL, intf_ctl);
if (ret < 0)
return ret;
ret = snd_soc_write(codec, CS42L51_MIC_POWER_CTL, power_ctl);
if (ret < 0)
return ret;
return 0;
}
static int cs42l51_dai_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
int reg;
int mask = CS42L51_DAC_OUT_CTL_DACA_MUTE|CS42L51_DAC_OUT_CTL_DACB_MUTE;
reg = snd_soc_read(codec, CS42L51_DAC_OUT_CTL);
if (mute)
reg |= mask;
else
reg &= ~mask;
return snd_soc_write(codec, CS42L51_DAC_OUT_CTL, reg);
}
static struct snd_soc_dai_ops cs42l51_dai_ops = {
.hw_params = cs42l51_hw_params,
.set_sysclk = cs42l51_set_dai_sysclk,
.set_fmt = cs42l51_set_dai_fmt,
.digital_mute = cs42l51_dai_mute,
};
struct snd_soc_dai cs42l51_dai = {
.name = "CS42L51 HiFi",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = CS42L51_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = CS42L51_FORMATS,
},
.ops = &cs42l51_dai_ops,
};
EXPORT_SYMBOL_GPL(cs42l51_dai);
static int cs42l51_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec;
int ret = 0;
if (!cs42l51_codec) {
dev_err(&pdev->dev, "CS42L51 codec not yet registered\n");
return -EINVAL;
}
socdev->card->codec = cs42l51_codec;
codec = socdev->card->codec;
/* Register PCMs */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to create PCMs\n");
return ret;
}
snd_soc_add_controls(codec, cs42l51_snd_controls,
ARRAY_SIZE(cs42l51_snd_controls));
snd_soc_dapm_new_controls(codec, cs42l51_dapm_widgets,
ARRAY_SIZE(cs42l51_dapm_widgets));
snd_soc_dapm_add_routes(codec, cs42l51_routes,
ARRAY_SIZE(cs42l51_routes));
return 0;
}
static int cs42l51_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
return 0;
}
struct snd_soc_codec_device soc_codec_device_cs42l51 = {
.probe = cs42l51_probe,
.remove = cs42l51_remove
};
EXPORT_SYMBOL_GPL(soc_codec_device_cs42l51);
static int __init cs42l51_init(void)
{
int ret;
ret = i2c_add_driver(&cs42l51_i2c_driver);
if (ret != 0) {
printk(KERN_ERR "%s: can't add i2c driver\n", __func__);
return ret;
}
return 0;
}
module_init(cs42l51_init);
static void __exit cs42l51_exit(void)
{
i2c_del_driver(&cs42l51_i2c_driver);
}
module_exit(cs42l51_exit);
MODULE_AUTHOR("Arnaud Patard <apatard@mandriva.com>");
MODULE_DESCRIPTION("Cirrus Logic CS42L51 ALSA SoC Codec Driver");
MODULE_LICENSE("GPL");

163
sound/soc/codecs/cs42l51.h Normal file
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@ -0,0 +1,163 @@
/*
* cs42l51.h
*
* ASoC Driver for Cirrus Logic CS42L51 codecs
*
* Copyright (c) 2010 Arnaud Patard <apatard@mandriva.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _CS42L51_H
#define _CS42L51_H
#define CS42L51_CHIP_ID 0x1B
#define CS42L51_CHIP_REV_A 0x00
#define CS42L51_CHIP_REV_B 0x01
#define CS42L51_CHIP_REV_ID 0x01
#define CS42L51_MK_CHIP_REV(a, b) ((a)<<3|(b))
#define CS42L51_POWER_CTL1 0x02
#define CS42L51_POWER_CTL1_PDN_DACB (1<<6)
#define CS42L51_POWER_CTL1_PDN_DACA (1<<5)
#define CS42L51_POWER_CTL1_PDN_PGAB (1<<4)
#define CS42L51_POWER_CTL1_PDN_PGAA (1<<3)
#define CS42L51_POWER_CTL1_PDN_ADCB (1<<2)
#define CS42L51_POWER_CTL1_PDN_ADCA (1<<1)
#define CS42L51_POWER_CTL1_PDN (1<<0)
#define CS42L51_MIC_POWER_CTL 0x03
#define CS42L51_MIC_POWER_CTL_AUTO (1<<7)
#define CS42L51_MIC_POWER_CTL_SPEED(x) (((x)&3)<<5)
#define CS42L51_QSM_MODE 3
#define CS42L51_HSM_MODE 2
#define CS42L51_SSM_MODE 1
#define CS42L51_DSM_MODE 0
#define CS42L51_MIC_POWER_CTL_3ST_SP (1<<4)
#define CS42L51_MIC_POWER_CTL_PDN_MICB (1<<3)
#define CS42L51_MIC_POWER_CTL_PDN_MICA (1<<2)
#define CS42L51_MIC_POWER_CTL_PDN_BIAS (1<<1)
#define CS42L51_MIC_POWER_CTL_MCLK_DIV2 (1<<0)
#define CS42L51_INTF_CTL 0x04
#define CS42L51_INTF_CTL_LOOPBACK (1<<7)
#define CS42L51_INTF_CTL_MASTER (1<<6)
#define CS42L51_INTF_CTL_DAC_FORMAT(x) (((x)&7)<<3)
#define CS42L51_DAC_DIF_LJ24 0x00
#define CS42L51_DAC_DIF_I2S 0x01
#define CS42L51_DAC_DIF_RJ24 0x02
#define CS42L51_DAC_DIF_RJ20 0x03
#define CS42L51_DAC_DIF_RJ18 0x04
#define CS42L51_DAC_DIF_RJ16 0x05
#define CS42L51_INTF_CTL_ADC_I2S (1<<2)
#define CS42L51_INTF_CTL_DIGMIX (1<<1)
#define CS42L51_INTF_CTL_MICMIX (1<<0)
#define CS42L51_MIC_CTL 0x05
#define CS42L51_MIC_CTL_ADC_SNGVOL (1<<7)
#define CS42L51_MIC_CTL_ADCD_DBOOST (1<<6)
#define CS42L51_MIC_CTL_ADCA_DBOOST (1<<5)
#define CS42L51_MIC_CTL_MICBIAS_SEL (1<<4)
#define CS42L51_MIC_CTL_MICBIAS_LVL(x) (((x)&3)<<2)
#define CS42L51_MIC_CTL_MICB_BOOST (1<<1)
#define CS42L51_MIC_CTL_MICA_BOOST (1<<0)
#define CS42L51_ADC_CTL 0x06
#define CS42L51_ADC_CTL_ADCB_HPFEN (1<<7)
#define CS42L51_ADC_CTL_ADCB_HPFRZ (1<<6)
#define CS42L51_ADC_CTL_ADCA_HPFEN (1<<5)
#define CS42L51_ADC_CTL_ADCA_HPFRZ (1<<4)
#define CS42L51_ADC_CTL_SOFTB (1<<3)
#define CS42L51_ADC_CTL_ZCROSSB (1<<2)
#define CS42L51_ADC_CTL_SOFTA (1<<1)
#define CS42L51_ADC_CTL_ZCROSSA (1<<0)
#define CS42L51_ADC_INPUT 0x07
#define CS42L51_ADC_INPUT_AINB_MUX(x) (((x)&3)<<6)
#define CS42L51_ADC_INPUT_AINA_MUX(x) (((x)&3)<<4)
#define CS42L51_ADC_INPUT_INV_ADCB (1<<3)
#define CS42L51_ADC_INPUT_INV_ADCA (1<<2)
#define CS42L51_ADC_INPUT_ADCB_MUTE (1<<1)
#define CS42L51_ADC_INPUT_ADCA_MUTE (1<<0)
#define CS42L51_DAC_OUT_CTL 0x08
#define CS42L51_DAC_OUT_CTL_HP_GAIN(x) (((x)&7)<<5)
#define CS42L51_DAC_OUT_CTL_DAC_SNGVOL (1<<4)
#define CS42L51_DAC_OUT_CTL_INV_PCMB (1<<3)
#define CS42L51_DAC_OUT_CTL_INV_PCMA (1<<2)
#define CS42L51_DAC_OUT_CTL_DACB_MUTE (1<<1)
#define CS42L51_DAC_OUT_CTL_DACA_MUTE (1<<0)
#define CS42L51_DAC_CTL 0x09
#define CS42L51_DAC_CTL_DATA_SEL(x) (((x)&3)<<6)
#define CS42L51_DAC_CTL_FREEZE (1<<5)
#define CS42L51_DAC_CTL_DEEMPH (1<<3)
#define CS42L51_DAC_CTL_AMUTE (1<<2)
#define CS42L51_DAC_CTL_DACSZ(x) (((x)&3)<<0)
#define CS42L51_ALC_PGA_CTL 0x0A
#define CS42L51_ALC_PGB_CTL 0x0B
#define CS42L51_ALC_PGX_ALCX_SRDIS (1<<7)
#define CS42L51_ALC_PGX_ALCX_ZCDIS (1<<6)
#define CS42L51_ALC_PGX_PGX_VOL(x) (((x)&0x1f)<<0)
#define CS42L51_ADCA_ATT 0x0C
#define CS42L51_ADCB_ATT 0x0D
#define CS42L51_ADCA_VOL 0x0E
#define CS42L51_ADCB_VOL 0x0F
#define CS42L51_PCMA_VOL 0x10
#define CS42L51_PCMB_VOL 0x11
#define CS42L51_MIX_MUTE_ADCMIX (1<<7)
#define CS42L51_MIX_VOLUME(x) (((x)&0x7f)<<0)
#define CS42L51_BEEP_FREQ 0x12
#define CS42L51_BEEP_VOL 0x13
#define CS42L51_BEEP_CONF 0x14
#define CS42L51_TONE_CTL 0x15
#define CS42L51_TONE_CTL_TREB(x) (((x)&0xf)<<4)
#define CS42L51_TONE_CTL_BASS(x) (((x)&0xf)<<0)
#define CS42L51_AOUTA_VOL 0x16
#define CS42L51_AOUTB_VOL 0x17
#define CS42L51_PCM_MIXER 0x18
#define CS42L51_LIMIT_THRES_DIS 0x19
#define CS42L51_LIMIT_REL 0x1A
#define CS42L51_LIMIT_ATT 0x1B
#define CS42L51_ALC_EN 0x1C
#define CS42L51_ALC_REL 0x1D
#define CS42L51_ALC_THRES 0x1E
#define CS42L51_NOISE_CONF 0x1F
#define CS42L51_STATUS 0x20
#define CS42L51_STATUS_SP_CLKERR (1<<6)
#define CS42L51_STATUS_SPEA_OVFL (1<<5)
#define CS42L51_STATUS_SPEB_OVFL (1<<4)
#define CS42L51_STATUS_PCMA_OVFL (1<<3)
#define CS42L51_STATUS_PCMB_OVFL (1<<2)
#define CS42L51_STATUS_ADCA_OVFL (1<<1)
#define CS42L51_STATUS_ADCB_OVFL (1<<0)
#define CS42L51_CHARGE_FREQ 0x21
#define CS42L51_FIRSTREG 0x01
/*
* Hack: with register 0x21, it makes 33 registers. Looks like someone in the
* i2c layer doesn't like i2c smbus block read of 33 regs. Workaround by using
* 32 regs
*/
#define CS42L51_LASTREG 0x20
#define CS42L51_NUMREGS (CS42L51_LASTREG - CS42L51_FIRSTREG + 1)
extern struct snd_soc_dai cs42l51_dai;
extern struct snd_soc_codec_device soc_codec_device_cs42l51;
#endif