573 lines
16 KiB
C
573 lines
16 KiB
C
/*
|
|
* 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/slab.h>
|
|
#include <sound/core.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/tlv.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/pcm.h>
|
|
#include <linux/regmap.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;
|
|
};
|
|
|
|
#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_get_chan_mix(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(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_soc_kcontrol_codec(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);
|
|
|
|
static const DECLARE_TLV_DB_SCALE(aout_tlv, -10200, 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 SOC_ENUM_SINGLE_EXT_DECL(cs42l51_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,
|
|
0, 0x19, 0x7F, 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,
|
|
0, 0x34, 0xE4, aout_tlv),
|
|
SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume",
|
|
CS42L51_ADCA_VOL, CS42L51_ADCB_VOL,
|
|
0, 0x19, 0x7F, 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)
|
|
{
|
|
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
|
|
|
|
switch (event) {
|
|
case SND_SOC_DAPM_PRE_PMD:
|
|
snd_soc_update_bits(codec, CS42L51_POWER_CTL1,
|
|
CS42L51_POWER_CTL1_PDN,
|
|
CS42L51_POWER_CTL1_PDN);
|
|
break;
|
|
default:
|
|
case SND_SOC_DAPM_POST_PMD:
|
|
snd_soc_update_bits(codec, CS42L51_POWER_CTL1,
|
|
CS42L51_POWER_CTL1_PDN, 0);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *cs42l51_dac_names[] = {"Direct PCM",
|
|
"DSP PCM", "ADC"};
|
|
static SOC_ENUM_SINGLE_DECL(cs42l51_dac_mux_enum,
|
|
CS42L51_DAC_CTL, 6, 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 SOC_ENUM_SINGLE_DECL(cs42l51_adcl_mux_enum,
|
|
CS42L51_ADC_INPUT, 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 SOC_ENUM_SINGLE_DECL(cs42l51_adcr_mux_enum,
|
|
CS42L51_ADC_INPUT, 6, 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);
|
|
|
|
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");
|
|
return -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:
|
|
dev_err(codec->dev, "Unknown master/slave configuration\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
|
|
cs42l51->mclk = freq;
|
|
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_codec *codec = dai->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_width(params)) {
|
|
case 16:
|
|
fmt = CS42L51_DAC_DIF_RJ16;
|
|
break;
|
|
case 18:
|
|
fmt = CS42L51_DAC_DIF_RJ18;
|
|
break;
|
|
case 20:
|
|
fmt = CS42L51_DAC_DIF_RJ20;
|
|
break;
|
|
case 24:
|
|
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 const 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,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver 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,
|
|
};
|
|
|
|
static int cs42l51_codec_probe(struct snd_soc_codec *codec)
|
|
{
|
|
int ret, reg;
|
|
|
|
/*
|
|
* 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)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_codec_driver soc_codec_device_cs42l51 = {
|
|
.probe = cs42l51_codec_probe,
|
|
|
|
.controls = cs42l51_snd_controls,
|
|
.num_controls = ARRAY_SIZE(cs42l51_snd_controls),
|
|
.dapm_widgets = cs42l51_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(cs42l51_dapm_widgets),
|
|
.dapm_routes = cs42l51_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(cs42l51_routes),
|
|
};
|
|
|
|
const struct regmap_config cs42l51_regmap = {
|
|
.max_register = CS42L51_CHARGE_FREQ,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
EXPORT_SYMBOL_GPL(cs42l51_regmap);
|
|
|
|
int cs42l51_probe(struct device *dev, struct regmap *regmap)
|
|
{
|
|
struct cs42l51_private *cs42l51;
|
|
unsigned int val;
|
|
int ret;
|
|
|
|
if (IS_ERR(regmap))
|
|
return PTR_ERR(regmap);
|
|
|
|
cs42l51 = devm_kzalloc(dev, sizeof(struct cs42l51_private),
|
|
GFP_KERNEL);
|
|
if (!cs42l51)
|
|
return -ENOMEM;
|
|
|
|
dev_set_drvdata(dev, cs42l51);
|
|
|
|
/* Verify that we have a CS42L51 */
|
|
ret = regmap_read(regmap, CS42L51_CHIP_REV_ID, &val);
|
|
if (ret < 0) {
|
|
dev_err(dev, "failed to read I2C\n");
|
|
goto error;
|
|
}
|
|
|
|
if ((val != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_A)) &&
|
|
(val != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_B))) {
|
|
dev_err(dev, "Invalid chip id: %x\n", val);
|
|
ret = -ENODEV;
|
|
goto error;
|
|
}
|
|
dev_info(dev, "Cirrus Logic CS42L51, Revision: %02X\n",
|
|
val & CS42L51_CHIP_REV_MASK);
|
|
|
|
ret = snd_soc_register_codec(dev,
|
|
&soc_codec_device_cs42l51, &cs42l51_dai, 1);
|
|
error:
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cs42l51_probe);
|
|
|
|
const struct of_device_id cs42l51_of_match[] = {
|
|
{ .compatible = "cirrus,cs42l51", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, cs42l51_of_match);
|
|
EXPORT_SYMBOL_GPL(cs42l51_of_match);
|
|
|
|
MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
|
|
MODULE_DESCRIPTION("Cirrus Logic CS42L51 ALSA SoC Codec Driver");
|
|
MODULE_LICENSE("GPL");
|