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7154b3e802
linux/sound/soc/codecs/twl4030.c
Joonyoung Shim 7154b3e802 ASoC: TWL4030: Add support Voice DAI 
Add Voice DAI to support the PCM voice interface of the twl4030 codec.

The PCM voice interface can be used with 8-kHz(voice narrowband) or
16-kHz(voice wideband) sampling rates, and 16bits, and mono RX and mono
TX or stereo TX.

The PCM voice interface has two modes
 - PCM mode1 : This uses the normal FS polarity and the rising edge of
               the clock signal.
 - PCM mode2 : This uses the FS polarity inverted and the falling edge
               of the clock signal.

If the system master clock is not 26MHz or the twl4030 codec mode is not
option2, the voice PCM interface is not available.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-04-20 12:44:24 +01:00

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/*
* ALSA SoC TWL4030 codec driver
*
* Author: Steve Sakoman, <steve@sakoman.com>
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/i2c/twl4030.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "twl4030.h"
/*
* twl4030 register cache & default register settings
*/
static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = {
0x00, /* this register not used */
0x91, /* REG_CODEC_MODE (0x1) */
0xc3, /* REG_OPTION (0x2) */
0x00, /* REG_UNKNOWN (0x3) */
0x00, /* REG_MICBIAS_CTL (0x4) */
0x20, /* REG_ANAMICL (0x5) */
0x00, /* REG_ANAMICR (0x6) */
0x00, /* REG_AVADC_CTL (0x7) */
0x00, /* REG_ADCMICSEL (0x8) */
0x00, /* REG_DIGMIXING (0x9) */
0x0c, /* REG_ATXL1PGA (0xA) */
0x0c, /* REG_ATXR1PGA (0xB) */
0x00, /* REG_AVTXL2PGA (0xC) */
0x00, /* REG_AVTXR2PGA (0xD) */
0x01, /* REG_AUDIO_IF (0xE) */
0x00, /* REG_VOICE_IF (0xF) */
0x00, /* REG_ARXR1PGA (0x10) */
0x00, /* REG_ARXL1PGA (0x11) */
0x6c, /* REG_ARXR2PGA (0x12) */
0x6c, /* REG_ARXL2PGA (0x13) */
0x00, /* REG_VRXPGA (0x14) */
0x00, /* REG_VSTPGA (0x15) */
0x00, /* REG_VRX2ARXPGA (0x16) */
0x0c, /* REG_AVDAC_CTL (0x17) */
0x00, /* REG_ARX2VTXPGA (0x18) */
0x00, /* REG_ARXL1_APGA_CTL (0x19) */
0x00, /* REG_ARXR1_APGA_CTL (0x1A) */
0x4b, /* REG_ARXL2_APGA_CTL (0x1B) */
0x4b, /* REG_ARXR2_APGA_CTL (0x1C) */
0x00, /* REG_ATX2ARXPGA (0x1D) */
0x00, /* REG_BT_IF (0x1E) */
0x00, /* REG_BTPGA (0x1F) */
0x00, /* REG_BTSTPGA (0x20) */
0x00, /* REG_EAR_CTL (0x21) */
0x24, /* REG_HS_SEL (0x22) */
0x0a, /* REG_HS_GAIN_SET (0x23) */
0x00, /* REG_HS_POPN_SET (0x24) */
0x00, /* REG_PREDL_CTL (0x25) */
0x00, /* REG_PREDR_CTL (0x26) */
0x00, /* REG_PRECKL_CTL (0x27) */
0x00, /* REG_PRECKR_CTL (0x28) */
0x00, /* REG_HFL_CTL (0x29) */
0x00, /* REG_HFR_CTL (0x2A) */
0x00, /* REG_ALC_CTL (0x2B) */
0x00, /* REG_ALC_SET1 (0x2C) */
0x00, /* REG_ALC_SET2 (0x2D) */
0x00, /* REG_BOOST_CTL (0x2E) */
0x00, /* REG_SOFTVOL_CTL (0x2F) */
0x00, /* REG_DTMF_FREQSEL (0x30) */
0x00, /* REG_DTMF_TONEXT1H (0x31) */
0x00, /* REG_DTMF_TONEXT1L (0x32) */
0x00, /* REG_DTMF_TONEXT2H (0x33) */
0x00, /* REG_DTMF_TONEXT2L (0x34) */
0x00, /* REG_DTMF_TONOFF (0x35) */
0x00, /* REG_DTMF_WANONOFF (0x36) */
0x00, /* REG_I2S_RX_SCRAMBLE_H (0x37) */
0x00, /* REG_I2S_RX_SCRAMBLE_M (0x38) */
0x00, /* REG_I2S_RX_SCRAMBLE_L (0x39) */
0x16, /* REG_APLL_CTL (0x3A) */
0x00, /* REG_DTMF_CTL (0x3B) */
0x00, /* REG_DTMF_PGA_CTL2 (0x3C) */
0x00, /* REG_DTMF_PGA_CTL1 (0x3D) */
0x00, /* REG_MISC_SET_1 (0x3E) */
0x00, /* REG_PCMBTMUX (0x3F) */
0x00, /* not used (0x40) */
0x00, /* not used (0x41) */
0x00, /* not used (0x42) */
0x00, /* REG_RX_PATH_SEL (0x43) */
0x00, /* REG_VDL_APGA_CTL (0x44) */
0x00, /* REG_VIBRA_CTL (0x45) */
0x00, /* REG_VIBRA_SET (0x46) */
0x00, /* REG_VIBRA_PWM_SET (0x47) */
0x00, /* REG_ANAMIC_GAIN (0x48) */
0x00, /* REG_MISC_SET_2 (0x49) */
};
/* codec private data */
struct twl4030_priv {
unsigned int bypass_state;
unsigned int codec_powered;
unsigned int codec_muted;
struct snd_pcm_substream *master_substream;
struct snd_pcm_substream *slave_substream;
unsigned int configured;
unsigned int rate;
unsigned int sample_bits;
unsigned int channels;
};
/*
* read twl4030 register cache
*/
static inline unsigned int twl4030_read_reg_cache(struct snd_soc_codec *codec,
unsigned int reg)
{
u8 *cache = codec->reg_cache;
if (reg >= TWL4030_CACHEREGNUM)
return -EIO;
return cache[reg];
}
/*
* write twl4030 register cache
*/
static inline void twl4030_write_reg_cache(struct snd_soc_codec *codec,
u8 reg, u8 value)
{
u8 *cache = codec->reg_cache;
if (reg >= TWL4030_CACHEREGNUM)
return;
cache[reg] = value;
}
/*
* write to the twl4030 register space
*/
static int twl4030_write(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
twl4030_write_reg_cache(codec, reg, value);
return twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
}
static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable)
{
struct twl4030_priv *twl4030 = codec->private_data;
u8 mode;
if (enable == twl4030->codec_powered)
return;
mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE);
if (enable)
mode |= TWL4030_CODECPDZ;
else
mode &= ~TWL4030_CODECPDZ;
twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
twl4030->codec_powered = enable;
/* REVISIT: this delay is present in TI sample drivers */
/* but there seems to be no TRM requirement for it */
udelay(10);
}
static void twl4030_init_chip(struct snd_soc_codec *codec)
{
int i;
/* clear CODECPDZ prior to setting register defaults */
twl4030_codec_enable(codec, 0);
/* set all audio section registers to reasonable defaults */
for (i = TWL4030_REG_OPTION; i <= TWL4030_REG_MISC_SET_2; i++)
twl4030_write(codec, i, twl4030_reg[i]);
}
static void twl4030_codec_mute(struct snd_soc_codec *codec, int mute)
{
struct twl4030_priv *twl4030 = codec->private_data;
u8 reg_val;
if (mute == twl4030->codec_muted)
return;
if (mute) {
/* Bypass the reg_cache and mute the volumes
* Headset mute is done in it's own event handler
* Things to mute: Earpiece, PreDrivL/R, CarkitL/R
*/
reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_EAR_CTL);
twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
reg_val & (~TWL4030_EAR_GAIN),
TWL4030_REG_EAR_CTL);
reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PREDL_CTL);
twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
reg_val & (~TWL4030_PREDL_GAIN),
TWL4030_REG_PREDL_CTL);
reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PREDR_CTL);
twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
reg_val & (~TWL4030_PREDR_GAIN),
TWL4030_REG_PREDL_CTL);
reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PRECKL_CTL);
twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
reg_val & (~TWL4030_PRECKL_GAIN),
TWL4030_REG_PRECKL_CTL);
reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_PRECKR_CTL);
twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
reg_val & (~TWL4030_PRECKL_GAIN),
TWL4030_REG_PRECKR_CTL);
/* Disable PLL */
reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL);
reg_val &= ~TWL4030_APLL_EN;
twl4030_write(codec, TWL4030_REG_APLL_CTL, reg_val);
} else {
/* Restore the volumes
* Headset mute is done in it's own event handler
* Things to restore: Earpiece, PreDrivL/R, CarkitL/R
*/
twl4030_write(codec, TWL4030_REG_EAR_CTL,
twl4030_read_reg_cache(codec, TWL4030_REG_EAR_CTL));
twl4030_write(codec, TWL4030_REG_PREDL_CTL,
twl4030_read_reg_cache(codec, TWL4030_REG_PREDL_CTL));
twl4030_write(codec, TWL4030_REG_PREDR_CTL,
twl4030_read_reg_cache(codec, TWL4030_REG_PREDR_CTL));
twl4030_write(codec, TWL4030_REG_PRECKL_CTL,
twl4030_read_reg_cache(codec, TWL4030_REG_PRECKL_CTL));
twl4030_write(codec, TWL4030_REG_PRECKR_CTL,
twl4030_read_reg_cache(codec, TWL4030_REG_PRECKR_CTL));
/* Enable PLL */
reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL);
reg_val |= TWL4030_APLL_EN;
twl4030_write(codec, TWL4030_REG_APLL_CTL, reg_val);
}
twl4030->codec_muted = mute;
}
static void twl4030_power_up(struct snd_soc_codec *codec)
{
struct twl4030_priv *twl4030 = codec->private_data;
u8 anamicl, regmisc1, byte;
int i = 0;
if (twl4030->codec_powered)
return;
/* set CODECPDZ to turn on codec */
twl4030_codec_enable(codec, 1);
/* initiate offset cancellation */
anamicl = twl4030_read_reg_cache(codec, TWL4030_REG_ANAMICL);
twl4030_write(codec, TWL4030_REG_ANAMICL,
anamicl | TWL4030_CNCL_OFFSET_START);
/* wait for offset cancellation to complete */
do {
/* this takes a little while, so don't slam i2c */
udelay(2000);
twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
TWL4030_REG_ANAMICL);
} while ((i++ < 100) &&
((byte & TWL4030_CNCL_OFFSET_START) ==
TWL4030_CNCL_OFFSET_START));
/* Make sure that the reg_cache has the same value as the HW */
twl4030_write_reg_cache(codec, TWL4030_REG_ANAMICL, byte);
/* anti-pop when changing analog gain */
regmisc1 = twl4030_read_reg_cache(codec, TWL4030_REG_MISC_SET_1);
twl4030_write(codec, TWL4030_REG_MISC_SET_1,
regmisc1 | TWL4030_SMOOTH_ANAVOL_EN);
/* toggle CODECPDZ as per TRM */
twl4030_codec_enable(codec, 0);
twl4030_codec_enable(codec, 1);
}
/*
* Unconditional power down
*/
static void twl4030_power_down(struct snd_soc_codec *codec)
{
/* power down */
twl4030_codec_enable(codec, 0);
}
/* Earpiece */
static const char *twl4030_earpiece_texts[] =
{"Off", "DACL1", "DACL2", "DACR1"};
static const unsigned int twl4030_earpiece_values[] =
{0x0, 0x1, 0x2, 0x4};
static const struct soc_enum twl4030_earpiece_enum =
SOC_VALUE_ENUM_SINGLE(TWL4030_REG_EAR_CTL, 1, 0x7,
ARRAY_SIZE(twl4030_earpiece_texts),
twl4030_earpiece_texts,
twl4030_earpiece_values);
static const struct snd_kcontrol_new twl4030_dapm_earpiece_control =
SOC_DAPM_VALUE_ENUM("Route", twl4030_earpiece_enum);
/* PreDrive Left */
static const char *twl4030_predrivel_texts[] =
{"Off", "DACL1", "DACL2", "DACR2"};
static const unsigned int twl4030_predrivel_values[] =
{0x0, 0x1, 0x2, 0x4};
static const struct soc_enum twl4030_predrivel_enum =
SOC_VALUE_ENUM_SINGLE(TWL4030_REG_PREDL_CTL, 1, 0x7,
ARRAY_SIZE(twl4030_predrivel_texts),
twl4030_predrivel_texts,
twl4030_predrivel_values);
static const struct snd_kcontrol_new twl4030_dapm_predrivel_control =
SOC_DAPM_VALUE_ENUM("Route", twl4030_predrivel_enum);
/* PreDrive Right */
static const char *twl4030_predriver_texts[] =
{"Off", "DACR1", "DACR2", "DACL2"};
static const unsigned int twl4030_predriver_values[] =
{0x0, 0x1, 0x2, 0x4};
static const struct soc_enum twl4030_predriver_enum =
SOC_VALUE_ENUM_SINGLE(TWL4030_REG_PREDR_CTL, 1, 0x7,
ARRAY_SIZE(twl4030_predriver_texts),
twl4030_predriver_texts,
twl4030_predriver_values);
static const struct snd_kcontrol_new twl4030_dapm_predriver_control =
SOC_DAPM_VALUE_ENUM("Route", twl4030_predriver_enum);
/* Headset Left */
static const char *twl4030_hsol_texts[] =
{"Off", "DACL1", "DACL2"};
static const struct soc_enum twl4030_hsol_enum =
SOC_ENUM_SINGLE(TWL4030_REG_HS_SEL, 1,
ARRAY_SIZE(twl4030_hsol_texts),
twl4030_hsol_texts);
static const struct snd_kcontrol_new twl4030_dapm_hsol_control =
SOC_DAPM_ENUM("Route", twl4030_hsol_enum);
/* Headset Right */
static const char *twl4030_hsor_texts[] =
{"Off", "DACR1", "DACR2"};
static const struct soc_enum twl4030_hsor_enum =
SOC_ENUM_SINGLE(TWL4030_REG_HS_SEL, 4,
ARRAY_SIZE(twl4030_hsor_texts),
twl4030_hsor_texts);
static const struct snd_kcontrol_new twl4030_dapm_hsor_control =
SOC_DAPM_ENUM("Route", twl4030_hsor_enum);
/* Carkit Left */
static const char *twl4030_carkitl_texts[] =
{"Off", "DACL1", "DACL2"};
static const struct soc_enum twl4030_carkitl_enum =
SOC_ENUM_SINGLE(TWL4030_REG_PRECKL_CTL, 1,
ARRAY_SIZE(twl4030_carkitl_texts),
twl4030_carkitl_texts);
static const struct snd_kcontrol_new twl4030_dapm_carkitl_control =
SOC_DAPM_ENUM("Route", twl4030_carkitl_enum);
/* Carkit Right */
static const char *twl4030_carkitr_texts[] =
{"Off", "DACR1", "DACR2"};
static const struct soc_enum twl4030_carkitr_enum =
SOC_ENUM_SINGLE(TWL4030_REG_PRECKR_CTL, 1,
ARRAY_SIZE(twl4030_carkitr_texts),
twl4030_carkitr_texts);
static const struct snd_kcontrol_new twl4030_dapm_carkitr_control =
SOC_DAPM_ENUM("Route", twl4030_carkitr_enum);
/* Handsfree Left */
static const char *twl4030_handsfreel_texts[] =
{"Voice", "DACL1", "DACL2", "DACR2"};
static const struct soc_enum twl4030_handsfreel_enum =
SOC_ENUM_SINGLE(TWL4030_REG_HFL_CTL, 0,
ARRAY_SIZE(twl4030_handsfreel_texts),
twl4030_handsfreel_texts);
static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control =
SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
/* Handsfree Right */
static const char *twl4030_handsfreer_texts[] =
{"Voice", "DACR1", "DACR2", "DACL2"};
static const struct soc_enum twl4030_handsfreer_enum =
SOC_ENUM_SINGLE(TWL4030_REG_HFR_CTL, 0,
ARRAY_SIZE(twl4030_handsfreer_texts),
twl4030_handsfreer_texts);
static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control =
SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
/* Left analog microphone selection */
static const char *twl4030_analoglmic_texts[] =
{"Off", "Main mic", "Headset mic", "AUXL", "Carkit mic"};
static const unsigned int twl4030_analoglmic_values[] =
{0x0, 0x1, 0x2, 0x4, 0x8};
static const struct soc_enum twl4030_analoglmic_enum =
SOC_VALUE_ENUM_SINGLE(TWL4030_REG_ANAMICL, 0, 0xf,
ARRAY_SIZE(twl4030_analoglmic_texts),
twl4030_analoglmic_texts,
twl4030_analoglmic_values);
static const struct snd_kcontrol_new twl4030_dapm_analoglmic_control =
SOC_DAPM_VALUE_ENUM("Route", twl4030_analoglmic_enum);
/* Right analog microphone selection */
static const char *twl4030_analogrmic_texts[] =
{"Off", "Sub mic", "AUXR"};
static const unsigned int twl4030_analogrmic_values[] =
{0x0, 0x1, 0x4};
static const struct soc_enum twl4030_analogrmic_enum =
SOC_VALUE_ENUM_SINGLE(TWL4030_REG_ANAMICR, 0, 0x5,
ARRAY_SIZE(twl4030_analogrmic_texts),
twl4030_analogrmic_texts,
twl4030_analogrmic_values);
static const struct snd_kcontrol_new twl4030_dapm_analogrmic_control =
SOC_DAPM_VALUE_ENUM("Route", twl4030_analogrmic_enum);
/* TX1 L/R Analog/Digital microphone selection */
static const char *twl4030_micpathtx1_texts[] =
{"Analog", "Digimic0"};
static const struct soc_enum twl4030_micpathtx1_enum =
SOC_ENUM_SINGLE(TWL4030_REG_ADCMICSEL, 0,
ARRAY_SIZE(twl4030_micpathtx1_texts),
twl4030_micpathtx1_texts);
static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control =
SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum);
/* TX2 L/R Analog/Digital microphone selection */
static const char *twl4030_micpathtx2_texts[] =
{"Analog", "Digimic1"};
static const struct soc_enum twl4030_micpathtx2_enum =
SOC_ENUM_SINGLE(TWL4030_REG_ADCMICSEL, 2,
ARRAY_SIZE(twl4030_micpathtx2_texts),
twl4030_micpathtx2_texts);
static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control =
SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum);
/* Analog bypass for AudioR1 */
static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR1_APGA_CTL, 2, 1, 0);
/* Analog bypass for AudioL1 */
static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL1_APGA_CTL, 2, 1, 0);
/* Analog bypass for AudioR2 */
static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR2_APGA_CTL, 2, 1, 0);
/* Analog bypass for AudioL2 */
static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL2_APGA_CTL, 2, 1, 0);
/* Digital bypass gain, 0 mutes the bypass */
static const unsigned int twl4030_dapm_dbypass_tlv[] = {
TLV_DB_RANGE_HEAD(2),
0, 3, TLV_DB_SCALE_ITEM(-2400, 0, 1),
4, 7, TLV_DB_SCALE_ITEM(-1800, 600, 0),
};
/* Digital bypass left (TX1L -> RX2L) */
static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control =
SOC_DAPM_SINGLE_TLV("Volume",
TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
twl4030_dapm_dbypass_tlv);
/* Digital bypass right (TX1R -> RX2R) */
static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
SOC_DAPM_SINGLE_TLV("Volume",
TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
twl4030_dapm_dbypass_tlv);
static int micpath_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct soc_enum *e = (struct soc_enum *)w->kcontrols->private_value;
unsigned char adcmicsel, micbias_ctl;
adcmicsel = twl4030_read_reg_cache(w->codec, TWL4030_REG_ADCMICSEL);
micbias_ctl = twl4030_read_reg_cache(w->codec, TWL4030_REG_MICBIAS_CTL);
/* Prepare the bits for the given TX path:
* shift_l == 0: TX1 microphone path
* shift_l == 2: TX2 microphone path */
if (e->shift_l) {
/* TX2 microphone path */
if (adcmicsel & TWL4030_TX2IN_SEL)
micbias_ctl |= TWL4030_MICBIAS2_CTL; /* digimic */
else
micbias_ctl &= ~TWL4030_MICBIAS2_CTL;
} else {
/* TX1 microphone path */
if (adcmicsel & TWL4030_TX1IN_SEL)
micbias_ctl |= TWL4030_MICBIAS1_CTL; /* digimic */
else
micbias_ctl &= ~TWL4030_MICBIAS1_CTL;
}
twl4030_write(w->codec, TWL4030_REG_MICBIAS_CTL, micbias_ctl);
return 0;
}
static int handsfree_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct soc_enum *e = (struct soc_enum *)w->kcontrols->private_value;
unsigned char hs_ctl;
hs_ctl = twl4030_read_reg_cache(w->codec, e->reg);
if (hs_ctl & TWL4030_HF_CTL_REF_EN) {
hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
twl4030_write(w->codec, e->reg, hs_ctl);
hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
twl4030_write(w->codec, e->reg, hs_ctl);
hs_ctl |= TWL4030_HF_CTL_HB_EN;
twl4030_write(w->codec, e->reg, hs_ctl);
} else {
hs_ctl &= ~(TWL4030_HF_CTL_RAMP_EN | TWL4030_HF_CTL_LOOP_EN
| TWL4030_HF_CTL_HB_EN);
twl4030_write(w->codec, e->reg, hs_ctl);
}
return 0;
}
static int headsetl_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
unsigned char hs_gain, hs_pop;
/* Save the current volume */
hs_gain = twl4030_read_reg_cache(w->codec, TWL4030_REG_HS_GAIN_SET);
hs_pop = twl4030_read_reg_cache(w->codec, TWL4030_REG_HS_POPN_SET);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
/* Do the anti-pop/bias ramp enable according to the TRM */
hs_pop |= TWL4030_VMID_EN;
twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
/* Is this needed? Can we just use whatever gain here? */
twl4030_write(w->codec, TWL4030_REG_HS_GAIN_SET,
(hs_gain & (~0x0f)) | 0x0a);
hs_pop |= TWL4030_RAMP_EN;
twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
/* Restore the original volume */
twl4030_write(w->codec, TWL4030_REG_HS_GAIN_SET, hs_gain);
break;
case SND_SOC_DAPM_POST_PMD:
/* Do the anti-pop/bias ramp disable according to the TRM */
hs_pop &= ~TWL4030_RAMP_EN;
twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
/* Bypass the reg_cache to mute the headset */
twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
hs_gain & (~0x0f),
TWL4030_REG_HS_GAIN_SET);
hs_pop &= ~TWL4030_VMID_EN;
twl4030_write(w->codec, TWL4030_REG_HS_POPN_SET, hs_pop);
break;
}
return 0;
}
static int bypass_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct soc_mixer_control *m =
(struct soc_mixer_control *)w->kcontrols->private_value;
struct twl4030_priv *twl4030 = w->codec->private_data;
unsigned char reg;
reg = twl4030_read_reg_cache(w->codec, m->reg);
if (m->reg <= TWL4030_REG_ARXR2_APGA_CTL) {
/* Analog bypass */
if (reg & (1 << m->shift))
twl4030->bypass_state |=
(1 << (m->reg - TWL4030_REG_ARXL1_APGA_CTL));
else
twl4030->bypass_state &=
~(1 << (m->reg - TWL4030_REG_ARXL1_APGA_CTL));
} else {
/* Digital bypass */
if (reg & (0x7 << m->shift))
twl4030->bypass_state |= (1 << (m->shift ? 5 : 4));
else
twl4030->bypass_state &= ~(1 << (m->shift ? 5 : 4));
}
if (w->codec->bias_level == SND_SOC_BIAS_STANDBY) {
if (twl4030->bypass_state)
twl4030_codec_mute(w->codec, 0);
else
twl4030_codec_mute(w->codec, 1);
}
return 0;
}
/*
* Some of the gain controls in TWL (mostly those which are associated with
* the outputs) are implemented in an interesting way:
* 0x0 : Power down (mute)
* 0x1 : 6dB
* 0x2 : 0 dB
* 0x3 : -6 dB
* Inverting not going to help with these.
* Custom volsw and volsw_2r get/put functions to handle these gain bits.
*/
#define SOC_DOUBLE_TLV_TWL4030(xname, xreg, shift_left, shift_right, xmax,\
xinvert, tlv_array) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
SNDRV_CTL_ELEM_ACCESS_READWRITE,\
.tlv.p = (tlv_array), \
.info = snd_soc_info_volsw, \
.get = snd_soc_get_volsw_twl4030, \
.put = snd_soc_put_volsw_twl4030, \
.private_value = (unsigned long)&(struct soc_mixer_control) \
{.reg = xreg, .shift = shift_left, .rshift = shift_right,\
.max = xmax, .invert = xinvert} }
#define SOC_DOUBLE_R_TLV_TWL4030(xname, reg_left, reg_right, xshift, xmax,\
xinvert, tlv_array) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
SNDRV_CTL_ELEM_ACCESS_READWRITE,\
.tlv.p = (tlv_array), \
.info = snd_soc_info_volsw_2r, \
.get = snd_soc_get_volsw_r2_twl4030,\
.put = snd_soc_put_volsw_r2_twl4030, \
.private_value = (unsigned long)&(struct soc_mixer_control) \
{.reg = reg_left, .rreg = reg_right, .shift = xshift, \
.rshift = xshift, .max = xmax, .invert = xinvert} }
#define SOC_SINGLE_TLV_TWL4030(xname, xreg, xshift, xmax, xinvert, tlv_array) \
SOC_DOUBLE_TLV_TWL4030(xname, xreg, xshift, xshift, xmax, \
xinvert, tlv_array)
static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned int reg = mc->reg;
unsigned int shift = mc->shift;
unsigned int rshift = mc->rshift;
int max = mc->max;
int mask = (1 << fls(max)) - 1;
ucontrol->value.integer.value[0] =
(snd_soc_read(codec, reg) >> shift) & mask;
if (ucontrol->value.integer.value[0])
ucontrol->value.integer.value[0] =
max + 1 - ucontrol->value.integer.value[0];
if (shift != rshift) {
ucontrol->value.integer.value[1] =
(snd_soc_read(codec, reg) >> rshift) & mask;
if (ucontrol->value.integer.value[1])
ucontrol->value.integer.value[1] =
max + 1 - ucontrol->value.integer.value[1];
}
return 0;
}
static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned int reg = mc->reg;
unsigned int shift = mc->shift;
unsigned int rshift = mc->rshift;
int max = mc->max;
int mask = (1 << fls(max)) - 1;
unsigned short val, val2, val_mask;
val = (ucontrol->value.integer.value[0] & mask);
val_mask = mask << shift;
if (val)
val = max + 1 - val;
val = val << shift;
if (shift != rshift) {
val2 = (ucontrol->value.integer.value[1] & mask);
val_mask |= mask << rshift;
if (val2)
val2 = max + 1 - val2;
val |= val2 << rshift;
}
return snd_soc_update_bits(codec, reg, val_mask, val);
}
static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned int reg = mc->reg;
unsigned int reg2 = mc->rreg;
unsigned int shift = mc->shift;
int max = mc->max;
int mask = (1<<fls(max))-1;
ucontrol->value.integer.value[0] =
(snd_soc_read(codec, reg) >> shift) & mask;
ucontrol->value.integer.value[1] =
(snd_soc_read(codec, reg2) >> shift) & mask;
if (ucontrol->value.integer.value[0])
ucontrol->value.integer.value[0] =
max + 1 - ucontrol->value.integer.value[0];
if (ucontrol->value.integer.value[1])
ucontrol->value.integer.value[1] =
max + 1 - ucontrol->value.integer.value[1];
return 0;
}
static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned int reg = mc->reg;
unsigned int reg2 = mc->rreg;
unsigned int shift = mc->shift;
int max = mc->max;
int mask = (1 << fls(max)) - 1;
int err;
unsigned short val, val2, val_mask;
val_mask = mask << shift;
val = (ucontrol->value.integer.value[0] & mask);
val2 = (ucontrol->value.integer.value[1] & mask);
if (val)
val = max + 1 - val;
if (val2)
val2 = max + 1 - val2;
val = val << shift;
val2 = val2 << shift;
err = snd_soc_update_bits(codec, reg, val_mask, val);
if (err < 0)
return err;
err = snd_soc_update_bits(codec, reg2, val_mask, val2);
return err;
}
/*
* FGAIN volume control:
* from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
*/
static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
/*
* CGAIN volume control:
* 0 dB to 12 dB in 6 dB steps
* value 2 and 3 means 12 dB
*/
static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
/*
* Analog playback gain
* -24 dB to 12 dB in 2 dB steps
*/
static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
/*
* Gain controls tied to outputs
* -6 dB to 6 dB in 6 dB steps (mute instead of -12)
*/
static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
/*
* Capture gain after the ADCs
* from 0 dB to 31 dB in 1 dB steps
*/
static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
/*
* Gain control for input amplifiers
* 0 dB to 30 dB in 6 dB steps
*/
static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
static const char *twl4030_rampdelay_texts[] = {
"27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
"437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
"3495/2581/1748 ms"
};
static const struct soc_enum twl4030_rampdelay_enum =
SOC_ENUM_SINGLE(TWL4030_REG_HS_POPN_SET, 2,
ARRAY_SIZE(twl4030_rampdelay_texts),
twl4030_rampdelay_texts);
static const struct snd_kcontrol_new twl4030_snd_controls[] = {
/* Common playback gain controls */
SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
0, 0x3f, 0, digital_fine_tlv),
SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
0, 0x3f, 0, digital_fine_tlv),
SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
6, 0x2, 0, digital_coarse_tlv),
SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
6, 0x2, 0, digital_coarse_tlv),
SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
3, 0x12, 1, analog_tlv),
SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
3, 0x12, 1, analog_tlv),
SOC_DOUBLE_R("DAC1 Analog Playback Switch",
TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1, 1, 0),
SOC_DOUBLE_R("DAC2 Analog Playback Switch",
TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1, 1, 0),
/* Separate output gain controls */
SOC_DOUBLE_R_TLV_TWL4030("PreDriv Playback Volume",
TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
4, 3, 0, output_tvl),
SOC_DOUBLE_TLV_TWL4030("Headset Playback Volume",
TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, output_tvl),
SOC_DOUBLE_R_TLV_TWL4030("Carkit Playback Volume",
TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
4, 3, 0, output_tvl),
SOC_SINGLE_TLV_TWL4030("Earpiece Playback Volume",
TWL4030_REG_EAR_CTL, 4, 3, 0, output_tvl),
/* Common capture gain controls */
SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
0, 0x1f, 0, digital_capture_tlv),
SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
0, 0x1f, 0, digital_capture_tlv),
SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
0, 3, 5, 0, input_gain_tlv),
SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
};
static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
/* Left channel inputs */
SND_SOC_DAPM_INPUT("MAINMIC"),
SND_SOC_DAPM_INPUT("HSMIC"),
SND_SOC_DAPM_INPUT("AUXL"),
SND_SOC_DAPM_INPUT("CARKITMIC"),
/* Right channel inputs */
SND_SOC_DAPM_INPUT("SUBMIC"),
SND_SOC_DAPM_INPUT("AUXR"),
/* Digital microphones (Stereo) */
SND_SOC_DAPM_INPUT("DIGIMIC0"),
SND_SOC_DAPM_INPUT("DIGIMIC1"),
/* Outputs */
SND_SOC_DAPM_OUTPUT("OUTL"),
SND_SOC_DAPM_OUTPUT("OUTR"),
SND_SOC_DAPM_OUTPUT("EARPIECE"),
SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
SND_SOC_DAPM_OUTPUT("PREDRIVER"),
SND_SOC_DAPM_OUTPUT("HSOL"),
SND_SOC_DAPM_OUTPUT("HSOR"),
SND_SOC_DAPM_OUTPUT("CARKITL"),
SND_SOC_DAPM_OUTPUT("CARKITR"),
SND_SOC_DAPM_OUTPUT("HFL"),
SND_SOC_DAPM_OUTPUT("HFR"),
/* DACs */
SND_SOC_DAPM_DAC("DAC Right1", "Right Front Playback",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC Left1", "Left Front Playback",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC Right2", "Right Rear Playback",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC Left2", "Left Rear Playback",
SND_SOC_NOPM, 0, 0),
/* Analog PGAs */
SND_SOC_DAPM_PGA("ARXR1_APGA", TWL4030_REG_ARXR1_APGA_CTL,
0, 0, NULL, 0),
SND_SOC_DAPM_PGA("ARXL1_APGA", TWL4030_REG_ARXL1_APGA_CTL,
0, 0, NULL, 0),
SND_SOC_DAPM_PGA("ARXR2_APGA", TWL4030_REG_ARXR2_APGA_CTL,
0, 0, NULL, 0),
SND_SOC_DAPM_PGA("ARXL2_APGA", TWL4030_REG_ARXL2_APGA_CTL,
0, 0, NULL, 0),
/* Analog bypasses */
SND_SOC_DAPM_SWITCH_E("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_abypassr1_control, bypass_event,
SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_SWITCH_E("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_abypassl1_control,
bypass_event, SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_SWITCH_E("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_abypassr2_control,
bypass_event, SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_SWITCH_E("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_abypassl2_control,
bypass_event, SND_SOC_DAPM_POST_REG),
/* Digital bypasses */
SND_SOC_DAPM_SWITCH_E("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_dbypassl_control, bypass_event,
SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_SWITCH_E("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_dbypassr_control, bypass_event,
SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer", TWL4030_REG_AVDAC_CTL,
0, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer", TWL4030_REG_AVDAC_CTL,
1, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer", TWL4030_REG_AVDAC_CTL,
2, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer", TWL4030_REG_AVDAC_CTL,
3, 0, NULL, 0),
/* Output MUX controls */
/* Earpiece */
SND_SOC_DAPM_VALUE_MUX("Earpiece Mux", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_earpiece_control),
/* PreDrivL/R */
SND_SOC_DAPM_VALUE_MUX("PredriveL Mux", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_predrivel_control),
SND_SOC_DAPM_VALUE_MUX("PredriveR Mux", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_predriver_control),
/* HeadsetL/R */
SND_SOC_DAPM_MUX_E("HeadsetL Mux", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_hsol_control, headsetl_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_MUX("HeadsetR Mux", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_hsor_control),
/* CarkitL/R */
SND_SOC_DAPM_MUX("CarkitL Mux", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_carkitl_control),
SND_SOC_DAPM_MUX("CarkitR Mux", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_carkitr_control),
/* HandsfreeL/R */
SND_SOC_DAPM_MUX_E("HandsfreeL Mux", TWL4030_REG_HFL_CTL, 5, 0,
&twl4030_dapm_handsfreel_control, handsfree_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_MUX_E("HandsfreeR Mux", TWL4030_REG_HFR_CTL, 5, 0,
&twl4030_dapm_handsfreer_control, handsfree_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
/* Introducing four virtual ADC, since TWL4030 have four channel for
capture */
SND_SOC_DAPM_ADC("ADC Virtual Left1", "Left Front Capture",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("ADC Virtual Right1", "Right Front Capture",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("ADC Virtual Left2", "Left Rear Capture",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("ADC Virtual Right2", "Right Rear Capture",
SND_SOC_NOPM, 0, 0),
/* Analog/Digital mic path selection.
TX1 Left/Right: either analog Left/Right or Digimic0
TX2 Left/Right: either analog Left/Right or Digimic1 */
SND_SOC_DAPM_MUX_E("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_micpathtx1_control, micpath_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD|
SND_SOC_DAPM_POST_REG),
SND_SOC_DAPM_MUX_E("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_micpathtx2_control, micpath_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD|
SND_SOC_DAPM_POST_REG),
/* Analog input muxes with switch for the capture amplifiers */
SND_SOC_DAPM_VALUE_MUX("Analog Left Capture Route",
TWL4030_REG_ANAMICL, 4, 0, &twl4030_dapm_analoglmic_control),
SND_SOC_DAPM_VALUE_MUX("Analog Right Capture Route",
TWL4030_REG_ANAMICR, 4, 0, &twl4030_dapm_analogrmic_control),
SND_SOC_DAPM_PGA("ADC Physical Left",
TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
SND_SOC_DAPM_PGA("ADC Physical Right",
TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA("Digimic0 Enable",
TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA("Digimic1 Enable",
TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0),
SND_SOC_DAPM_MICBIAS("Mic Bias 1", TWL4030_REG_MICBIAS_CTL, 0, 0),
SND_SOC_DAPM_MICBIAS("Mic Bias 2", TWL4030_REG_MICBIAS_CTL, 1, 0),
SND_SOC_DAPM_MICBIAS("Headset Mic Bias", TWL4030_REG_MICBIAS_CTL, 2, 0),
};
static const struct snd_soc_dapm_route intercon[] = {
{"Analog L1 Playback Mixer", NULL, "DAC Left1"},
{"Analog R1 Playback Mixer", NULL, "DAC Right1"},
{"Analog L2 Playback Mixer", NULL, "DAC Left2"},
{"Analog R2 Playback Mixer", NULL, "DAC Right2"},
{"ARXL1_APGA", NULL, "Analog L1 Playback Mixer"},
{"ARXR1_APGA", NULL, "Analog R1 Playback Mixer"},
{"ARXL2_APGA", NULL, "Analog L2 Playback Mixer"},
{"ARXR2_APGA", NULL, "Analog R2 Playback Mixer"},
/* Internal playback routings */
/* Earpiece */
{"Earpiece Mux", "DACL1", "ARXL1_APGA"},
{"Earpiece Mux", "DACL2", "ARXL2_APGA"},
{"Earpiece Mux", "DACR1", "ARXR1_APGA"},
/* PreDrivL */
{"PredriveL Mux", "DACL1", "ARXL1_APGA"},
{"PredriveL Mux", "DACL2", "ARXL2_APGA"},
{"PredriveL Mux", "DACR2", "ARXR2_APGA"},
/* PreDrivR */
{"PredriveR Mux", "DACR1", "ARXR1_APGA"},
{"PredriveR Mux", "DACR2", "ARXR2_APGA"},
{"PredriveR Mux", "DACL2", "ARXL2_APGA"},
/* HeadsetL */
{"HeadsetL Mux", "DACL1", "ARXL1_APGA"},
{"HeadsetL Mux", "DACL2", "ARXL2_APGA"},
/* HeadsetR */
{"HeadsetR Mux", "DACR1", "ARXR1_APGA"},
{"HeadsetR Mux", "DACR2", "ARXR2_APGA"},
/* CarkitL */
{"CarkitL Mux", "DACL1", "ARXL1_APGA"},
{"CarkitL Mux", "DACL2", "ARXL2_APGA"},
/* CarkitR */
{"CarkitR Mux", "DACR1", "ARXR1_APGA"},
{"CarkitR Mux", "DACR2", "ARXR2_APGA"},
/* HandsfreeL */
{"HandsfreeL Mux", "DACL1", "ARXL1_APGA"},
{"HandsfreeL Mux", "DACL2", "ARXL2_APGA"},
{"HandsfreeL Mux", "DACR2", "ARXR2_APGA"},
/* HandsfreeR */
{"HandsfreeR Mux", "DACR1", "ARXR1_APGA"},
{"HandsfreeR Mux", "DACR2", "ARXR2_APGA"},
{"HandsfreeR Mux", "DACL2", "ARXL2_APGA"},
/* outputs */
{"OUTL", NULL, "ARXL2_APGA"},
{"OUTR", NULL, "ARXR2_APGA"},
{"EARPIECE", NULL, "Earpiece Mux"},
{"PREDRIVEL", NULL, "PredriveL Mux"},
{"PREDRIVER", NULL, "PredriveR Mux"},
{"HSOL", NULL, "HeadsetL Mux"},
{"HSOR", NULL, "HeadsetR Mux"},
{"CARKITL", NULL, "CarkitL Mux"},
{"CARKITR", NULL, "CarkitR Mux"},
{"HFL", NULL, "HandsfreeL Mux"},
{"HFR", NULL, "HandsfreeR Mux"},
/* Capture path */
{"Analog Left Capture Route", "Main mic", "MAINMIC"},
{"Analog Left Capture Route", "Headset mic", "HSMIC"},
{"Analog Left Capture Route", "AUXL", "AUXL"},
{"Analog Left Capture Route", "Carkit mic", "CARKITMIC"},
{"Analog Right Capture Route", "Sub mic", "SUBMIC"},
{"Analog Right Capture Route", "AUXR", "AUXR"},
{"ADC Physical Left", NULL, "Analog Left Capture Route"},
{"ADC Physical Right", NULL, "Analog Right Capture Route"},
{"Digimic0 Enable", NULL, "DIGIMIC0"},
{"Digimic1 Enable", NULL, "DIGIMIC1"},
/* TX1 Left capture path */
{"TX1 Capture Route", "Analog", "ADC Physical Left"},
{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
/* TX1 Right capture path */
{"TX1 Capture Route", "Analog", "ADC Physical Right"},
{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
/* TX2 Left capture path */
{"TX2 Capture Route", "Analog", "ADC Physical Left"},
{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
/* TX2 Right capture path */
{"TX2 Capture Route", "Analog", "ADC Physical Right"},
{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
{"ADC Virtual Left1", NULL, "TX1 Capture Route"},
{"ADC Virtual Right1", NULL, "TX1 Capture Route"},
{"ADC Virtual Left2", NULL, "TX2 Capture Route"},
{"ADC Virtual Right2", NULL, "TX2 Capture Route"},
/* Analog bypass routes */
{"Right1 Analog Loopback", "Switch", "Analog Right Capture Route"},
{"Left1 Analog Loopback", "Switch", "Analog Left Capture Route"},
{"Right2 Analog Loopback", "Switch", "Analog Right Capture Route"},
{"Left2 Analog Loopback", "Switch", "Analog Left Capture Route"},
{"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
{"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
{"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
{"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
/* Digital bypass routes */
{"Right Digital Loopback", "Volume", "TX1 Capture Route"},
{"Left Digital Loopback", "Volume", "TX1 Capture Route"},
{"Analog R2 Playback Mixer", NULL, "Right Digital Loopback"},
{"Analog L2 Playback Mixer", NULL, "Left Digital Loopback"},
};
static int twl4030_add_widgets(struct snd_soc_codec *codec)
{
snd_soc_dapm_new_controls(codec, twl4030_dapm_widgets,
ARRAY_SIZE(twl4030_dapm_widgets));
snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
snd_soc_dapm_new_widgets(codec);
return 0;
}
static int twl4030_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct twl4030_priv *twl4030 = codec->private_data;
switch (level) {
case SND_SOC_BIAS_ON:
twl4030_codec_mute(codec, 0);
break;
case SND_SOC_BIAS_PREPARE:
twl4030_power_up(codec);
if (twl4030->bypass_state)
twl4030_codec_mute(codec, 0);
else
twl4030_codec_mute(codec, 1);
break;
case SND_SOC_BIAS_STANDBY:
twl4030_power_up(codec);
if (twl4030->bypass_state)
twl4030_codec_mute(codec, 0);
else
twl4030_codec_mute(codec, 1);
break;
case SND_SOC_BIAS_OFF:
twl4030_power_down(codec);
break;
}
codec->bias_level = level;
return 0;
}
static void twl4030_constraints(struct twl4030_priv *twl4030,
struct snd_pcm_substream *mst_substream)
{
struct snd_pcm_substream *slv_substream;
/* Pick the stream, which need to be constrained */
if (mst_substream == twl4030->master_substream)
slv_substream = twl4030->slave_substream;
else if (mst_substream == twl4030->slave_substream)
slv_substream = twl4030->master_substream;
else /* This should not happen.. */
return;
/* Set the constraints according to the already configured stream */
snd_pcm_hw_constraint_minmax(slv_substream->runtime,
SNDRV_PCM_HW_PARAM_RATE,
twl4030->rate,
twl4030->rate);
snd_pcm_hw_constraint_minmax(slv_substream->runtime,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
twl4030->sample_bits,
twl4030->sample_bits);
snd_pcm_hw_constraint_minmax(slv_substream->runtime,
SNDRV_PCM_HW_PARAM_CHANNELS,
twl4030->channels,
twl4030->channels);
}
static int twl4030_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;
struct twl4030_priv *twl4030 = codec->private_data;
if (twl4030->master_substream) {
twl4030->slave_substream = substream;
/* The DAI has one configuration for playback and capture, so
* if the DAI has been already configured then constrain this
* substream to match it. */
if (twl4030->configured)
twl4030_constraints(twl4030, twl4030->master_substream);
} else {
twl4030->master_substream = substream;
}
return 0;
}
static void twl4030_shutdown(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;
struct twl4030_priv *twl4030 = codec->private_data;
if (twl4030->master_substream == substream)
twl4030->master_substream = twl4030->slave_substream;
twl4030->slave_substream = NULL;
/* If all streams are closed, or the remaining stream has not yet
* been configured than set the DAI as not configured. */
if (!twl4030->master_substream)
twl4030->configured = 0;
else if (!twl4030->master_substream->runtime->channels)
twl4030->configured = 0;
}
static int twl4030_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 twl4030_priv *twl4030 = codec->private_data;
u8 mode, old_mode, format, old_format;
if (twl4030->configured)
/* Ignoring hw_params for already configured DAI */
return 0;
/* bit rate */
old_mode = twl4030_read_reg_cache(codec,
TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
mode = old_mode & ~TWL4030_APLL_RATE;
switch (params_rate(params)) {
case 8000:
mode |= TWL4030_APLL_RATE_8000;
break;
case 11025:
mode |= TWL4030_APLL_RATE_11025;
break;
case 12000:
mode |= TWL4030_APLL_RATE_12000;
break;
case 16000:
mode |= TWL4030_APLL_RATE_16000;
break;
case 22050:
mode |= TWL4030_APLL_RATE_22050;
break;
case 24000:
mode |= TWL4030_APLL_RATE_24000;
break;
case 32000:
mode |= TWL4030_APLL_RATE_32000;
break;
case 44100:
mode |= TWL4030_APLL_RATE_44100;
break;
case 48000:
mode |= TWL4030_APLL_RATE_48000;
break;
case 96000:
mode |= TWL4030_APLL_RATE_96000;
break;
default:
printk(KERN_ERR "TWL4030 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);
}
/* sample size */
old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF);
format = old_format;
format &= ~TWL4030_DATA_WIDTH;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
format |= TWL4030_DATA_WIDTH_16S_16W;
break;
case SNDRV_PCM_FORMAT_S24_LE:
format |= TWL4030_DATA_WIDTH_32S_24W;
break;
default:
printk(KERN_ERR "TWL4030 hw params: unknown format %d\n",
params_format(params));
return -EINVAL;
}
if (format != old_format) {
/* clear CODECPDZ before changing format (codec requirement) */
twl4030_codec_enable(codec, 0);
/* change format */
twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
/* set CODECPDZ afterwards */
twl4030_codec_enable(codec, 1);
}
/* Store the important parameters for the DAI configuration and set
* the DAI as configured */
twl4030->configured = 1;
twl4030->rate = params_rate(params);
twl4030->sample_bits = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
twl4030->channels = params_channels(params);
/* If both playback and capture streams are open, and one of them
* is setting the hw parameters right now (since we are here), set
* constraints to the other stream to match the current one. */
if (twl4030->slave_substream)
twl4030_constraints(twl4030, substream);
return 0;
}
static int twl4030_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 19200000:
infreq = TWL4030_APLL_INFREQ_19200KHZ;
break;
case 26000000:
infreq = TWL4030_APLL_INFREQ_26000KHZ;
break;
case 38400000:
infreq = TWL4030_APLL_INFREQ_38400KHZ;
break;
default:
printk(KERN_ERR "TWL4030 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_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_AUDIO_IF);
format = old_format;
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
format &= ~(TWL4030_AIF_SLAVE_EN);
format &= ~(TWL4030_CLK256FS_EN);
break;
case SND_SOC_DAIFMT_CBS_CFS:
format |= TWL4030_AIF_SLAVE_EN;
format |= TWL4030_CLK256FS_EN;
break;
default:
return -EINVAL;
}
/* interface format */
format &= ~TWL4030_AIF_FORMAT;
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
format |= TWL4030_AIF_FORMAT_CODEC;
break;
default:
return -EINVAL;
}
if (format != old_format) {
/* clear CODECPDZ before changing format (codec requirement) */
twl4030_codec_enable(codec, 0);
/* change format */
twl4030_write(codec, TWL4030_REG_AUDIO_IF, format);
/* set CODECPDZ afterwards */
twl4030_codec_enable(codec, 1);
}
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)
static struct snd_soc_dai_ops twl4030_dai_ops = {
.startup = twl4030_startup,
.shutdown = twl4030_shutdown,
.hw_params = twl4030_hw_params,
.set_sysclk = twl4030_set_dai_sysclk,
.set_fmt = twl4030_set_dai_fmt,
};
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",
.channels_min = 2,
.channels_max = 2,
.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
.formats = TWL4030_FORMATS,},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.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);
static int twl4030_suspend(struct platform_device *pdev, pm_message_t state)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static int twl4030_resume(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
twl4030_set_bias_level(codec, codec->suspend_bias_level);
return 0;
}
/*
* initialize the driver
* register the mixer and dsp interfaces with the kernel
*/
static int twl4030_init(struct snd_soc_device *socdev)
{
struct snd_soc_codec *codec = socdev->card->codec;
int ret = 0;
printk(KERN_INFO "TWL4030 Audio Codec init \n");
codec->name = "twl4030";
codec->owner = THIS_MODULE;
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 = ARRAY_SIZE(twl4030_dai),
codec->reg_cache_size = sizeof(twl4030_reg);
codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg),
GFP_KERNEL);
if (codec->reg_cache == NULL)
return -ENOMEM;
/* register pcms */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
printk(KERN_ERR "twl4030: failed to create pcms\n");
goto pcm_err;
}
twl4030_init_chip(codec);
/* power on device */
twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
snd_soc_add_controls(codec, twl4030_snd_controls,
ARRAY_SIZE(twl4030_snd_controls));
twl4030_add_widgets(codec);
ret = snd_soc_init_card(socdev);
if (ret < 0) {
printk(KERN_ERR "twl4030: failed to register card\n");
goto card_err;
}
return ret;
card_err:
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
pcm_err:
kfree(codec->reg_cache);
return ret;
}
static struct snd_soc_device *twl4030_socdev;
static int twl4030_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec;
struct twl4030_priv *twl4030;
codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
if (codec == NULL)
return -ENOMEM;
twl4030 = kzalloc(sizeof(struct twl4030_priv), GFP_KERNEL);
if (twl4030 == NULL) {
kfree(codec);
return -ENOMEM;
}
codec->private_data = twl4030;
socdev->card->codec = codec;
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
twl4030_socdev = socdev;
twl4030_init(socdev);
return 0;
}
static int twl4030_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
printk(KERN_INFO "TWL4030 Audio Codec remove\n");
twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
kfree(codec->private_data);
kfree(codec);
return 0;
}
struct snd_soc_codec_device soc_codec_dev_twl4030 = {
.probe = twl4030_probe,
.remove = twl4030_remove,
.suspend = twl4030_suspend,
.resume = twl4030_resume,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_twl4030);
static int __init twl4030_modinit(void)
{
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_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
}
module_exit(twl4030_exit);
MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
MODULE_AUTHOR("Steve Sakoman");
MODULE_LICENSE("GPL");
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