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OpenCloudOS-Kernel/sound/soc/codecs/mt6358.c

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// SPDX-License-Identifier: GPL-2.0
//
// mt6358.c -- mt6358 ALSA SoC audio codec driver
//
// Copyright (c) 2018 MediaTek Inc.
// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/sched.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/regulator/consumer.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "mt6358.h"
enum {
AUDIO_ANALOG_VOLUME_HSOUTL,
AUDIO_ANALOG_VOLUME_HSOUTR,
AUDIO_ANALOG_VOLUME_HPOUTL,
AUDIO_ANALOG_VOLUME_HPOUTR,
AUDIO_ANALOG_VOLUME_LINEOUTL,
AUDIO_ANALOG_VOLUME_LINEOUTR,
AUDIO_ANALOG_VOLUME_MICAMP1,
AUDIO_ANALOG_VOLUME_MICAMP2,
AUDIO_ANALOG_VOLUME_TYPE_MAX
};
enum {
MUX_ADC_L,
MUX_ADC_R,
MUX_PGA_L,
MUX_PGA_R,
MUX_MIC_TYPE,
MUX_HP_L,
MUX_HP_R,
MUX_NUM,
};
enum {
DEVICE_HP,
DEVICE_LO,
DEVICE_RCV,
DEVICE_MIC1,
DEVICE_MIC2,
DEVICE_NUM
};
/* Supply widget subseq */
enum {
/* common */
SUPPLY_SEQ_CLK_BUF,
SUPPLY_SEQ_AUD_GLB,
SUPPLY_SEQ_CLKSQ,
SUPPLY_SEQ_VOW_AUD_LPW,
SUPPLY_SEQ_AUD_VOW,
SUPPLY_SEQ_VOW_CLK,
SUPPLY_SEQ_VOW_LDO,
SUPPLY_SEQ_TOP_CK,
SUPPLY_SEQ_TOP_CK_LAST,
SUPPLY_SEQ_AUD_TOP,
SUPPLY_SEQ_AUD_TOP_LAST,
SUPPLY_SEQ_AFE,
/* capture */
SUPPLY_SEQ_ADC_SUPPLY,
};
enum {
CH_L = 0,
CH_R,
NUM_CH,
};
#define REG_STRIDE 2
struct mt6358_priv {
struct device *dev;
struct regmap *regmap;
unsigned int dl_rate;
unsigned int ul_rate;
int ana_gain[AUDIO_ANALOG_VOLUME_TYPE_MAX];
unsigned int mux_select[MUX_NUM];
int dev_counter[DEVICE_NUM];
int mtkaif_protocol;
struct regulator *avdd_reg;
};
int mt6358_set_mtkaif_protocol(struct snd_soc_component *cmpnt,
int mtkaif_protocol)
{
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
priv->mtkaif_protocol = mtkaif_protocol;
return 0;
}
static void playback_gpio_set(struct mt6358_priv *priv)
{
/* set gpio mosi mode */
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE2_CLR,
0x01f8, 0x01f8);
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE2_SET,
0xffff, 0x0249);
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE2,
0xffff, 0x0249);
}
static void playback_gpio_reset(struct mt6358_priv *priv)
{
/* set pad_aud_*_mosi to GPIO mode and dir input
* reason:
* pad_aud_dat_mosi*, because the pin is used as boot strap
* don't clean clk/sync, for mtkaif protocol 2
*/
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE2_CLR,
0x01f8, 0x01f8);
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE2,
0x01f8, 0x0000);
regmap_update_bits(priv->regmap, MT6358_GPIO_DIR0,
0xf << 8, 0x0);
}
static void capture_gpio_set(struct mt6358_priv *priv)
{
/* set gpio miso mode */
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE3_CLR,
0xffff, 0xffff);
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE3_SET,
0xffff, 0x0249);
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE3,
0xffff, 0x0249);
}
static void capture_gpio_reset(struct mt6358_priv *priv)
{
/* set pad_aud_*_miso to GPIO mode and dir input
* reason:
* pad_aud_clk_miso, because when playback only the miso_clk
* will also have 26m, so will have power leak
* pad_aud_dat_miso*, because the pin is used as boot strap
*/
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE3_CLR,
0xffff, 0xffff);
regmap_update_bits(priv->regmap, MT6358_GPIO_MODE3,
0xffff, 0x0000);
regmap_update_bits(priv->regmap, MT6358_GPIO_DIR0,
0xf << 12, 0x0);
}
/* use only when not govern by DAPM */
static int mt6358_set_dcxo(struct mt6358_priv *priv, bool enable)
{
regmap_update_bits(priv->regmap, MT6358_DCXO_CW14,
0x1 << RG_XO_AUDIO_EN_M_SFT,
(enable ? 1 : 0) << RG_XO_AUDIO_EN_M_SFT);
return 0;
}
/* use only when not govern by DAPM */
static int mt6358_set_clksq(struct mt6358_priv *priv, bool enable)
{
/* audio clk source from internal dcxo */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON6,
RG_CLKSQ_IN_SEL_TEST_MASK_SFT,
0x0);
/* Enable/disable CLKSQ 26MHz */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON6,
RG_CLKSQ_EN_MASK_SFT,
(enable ? 1 : 0) << RG_CLKSQ_EN_SFT);
return 0;
}
/* use only when not govern by DAPM */
static int mt6358_set_aud_global_bias(struct mt6358_priv *priv, bool enable)
{
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13,
RG_AUDGLB_PWRDN_VA28_MASK_SFT,
(enable ? 0 : 1) << RG_AUDGLB_PWRDN_VA28_SFT);
return 0;
}
/* use only when not govern by DAPM */
static int mt6358_set_topck(struct mt6358_priv *priv, bool enable)
{
regmap_update_bits(priv->regmap, MT6358_AUD_TOP_CKPDN_CON0,
0x0066, enable ? 0x0 : 0x66);
return 0;
}
static int mt6358_mtkaif_tx_enable(struct mt6358_priv *priv)
{
switch (priv->mtkaif_protocol) {
case MT6358_MTKAIF_PROTOCOL_2_CLK_P2:
/* MTKAIF TX format setting */
regmap_update_bits(priv->regmap,
MT6358_AFE_ADDA_MTKAIF_CFG0,
0xffff, 0x0010);
/* enable aud_pad TX fifos */
regmap_update_bits(priv->regmap,
MT6358_AFE_AUD_PAD_TOP,
0xff00, 0x3800);
regmap_update_bits(priv->regmap,
MT6358_AFE_AUD_PAD_TOP,
0xff00, 0x3900);
break;
case MT6358_MTKAIF_PROTOCOL_2:
/* MTKAIF TX format setting */
regmap_update_bits(priv->regmap,
MT6358_AFE_ADDA_MTKAIF_CFG0,
0xffff, 0x0010);
/* enable aud_pad TX fifos */
regmap_update_bits(priv->regmap,
MT6358_AFE_AUD_PAD_TOP,
0xff00, 0x3100);
break;
case MT6358_MTKAIF_PROTOCOL_1:
default:
/* MTKAIF TX format setting */
regmap_update_bits(priv->regmap,
MT6358_AFE_ADDA_MTKAIF_CFG0,
0xffff, 0x0000);
/* enable aud_pad TX fifos */
regmap_update_bits(priv->regmap,
MT6358_AFE_AUD_PAD_TOP,
0xff00, 0x3100);
break;
}
return 0;
}
static int mt6358_mtkaif_tx_disable(struct mt6358_priv *priv)
{
/* disable aud_pad TX fifos */
regmap_update_bits(priv->regmap, MT6358_AFE_AUD_PAD_TOP,
0xff00, 0x3000);
return 0;
}
int mt6358_mtkaif_calibration_enable(struct snd_soc_component *cmpnt)
{
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
playback_gpio_set(priv);
capture_gpio_set(priv);
mt6358_mtkaif_tx_enable(priv);
mt6358_set_dcxo(priv, true);
mt6358_set_aud_global_bias(priv, true);
mt6358_set_clksq(priv, true);
mt6358_set_topck(priv, true);
/* set dat_miso_loopback on */
regmap_update_bits(priv->regmap, MT6358_AUDIO_DIG_CFG,
RG_AUD_PAD_TOP_DAT_MISO2_LOOPBACK_MASK_SFT,
1 << RG_AUD_PAD_TOP_DAT_MISO2_LOOPBACK_SFT);
regmap_update_bits(priv->regmap, MT6358_AUDIO_DIG_CFG,
RG_AUD_PAD_TOP_DAT_MISO_LOOPBACK_MASK_SFT,
1 << RG_AUD_PAD_TOP_DAT_MISO_LOOPBACK_SFT);
return 0;
}
int mt6358_mtkaif_calibration_disable(struct snd_soc_component *cmpnt)
{
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
/* set dat_miso_loopback off */
regmap_update_bits(priv->regmap, MT6358_AUDIO_DIG_CFG,
RG_AUD_PAD_TOP_DAT_MISO2_LOOPBACK_MASK_SFT,
0 << RG_AUD_PAD_TOP_DAT_MISO2_LOOPBACK_SFT);
regmap_update_bits(priv->regmap, MT6358_AUDIO_DIG_CFG,
RG_AUD_PAD_TOP_DAT_MISO_LOOPBACK_MASK_SFT,
0 << RG_AUD_PAD_TOP_DAT_MISO_LOOPBACK_SFT);
mt6358_set_topck(priv, false);
mt6358_set_clksq(priv, false);
mt6358_set_aud_global_bias(priv, false);
mt6358_set_dcxo(priv, false);
mt6358_mtkaif_tx_disable(priv);
playback_gpio_reset(priv);
capture_gpio_reset(priv);
return 0;
}
int mt6358_set_mtkaif_calibration_phase(struct snd_soc_component *cmpnt,
int phase_1, int phase_2)
{
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
regmap_update_bits(priv->regmap, MT6358_AUDIO_DIG_CFG,
RG_AUD_PAD_TOP_PHASE_MODE_MASK_SFT,
phase_1 << RG_AUD_PAD_TOP_PHASE_MODE_SFT);
regmap_update_bits(priv->regmap, MT6358_AUDIO_DIG_CFG,
RG_AUD_PAD_TOP_PHASE_MODE2_MASK_SFT,
phase_2 << RG_AUD_PAD_TOP_PHASE_MODE2_SFT);
return 0;
}
/* dl pga gain */
enum {
DL_GAIN_8DB = 0,
DL_GAIN_0DB = 8,
DL_GAIN_N_1DB = 9,
DL_GAIN_N_10DB = 18,
DL_GAIN_N_40DB = 0x1f,
};
#define DL_GAIN_N_10DB_REG (DL_GAIN_N_10DB << 7 | DL_GAIN_N_10DB)
#define DL_GAIN_N_40DB_REG (DL_GAIN_N_40DB << 7 | DL_GAIN_N_40DB)
#define DL_GAIN_REG_MASK 0x0f9f
static void hp_zcd_disable(struct mt6358_priv *priv)
{
regmap_write(priv->regmap, MT6358_ZCD_CON0, 0x0000);
}
static void hp_main_output_ramp(struct mt6358_priv *priv, bool up)
{
int i = 0, stage = 0;
int target = 7;
/* Enable/Reduce HPL/R main output stage step by step */
for (i = 0; i <= target; i++) {
stage = up ? i : target - i;
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON1,
0x7 << 8, stage << 8);
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON1,
0x7 << 11, stage << 11);
usleep_range(100, 150);
}
}
static void hp_aux_feedback_loop_gain_ramp(struct mt6358_priv *priv, bool up)
{
int i = 0, stage = 0;
/* Reduce HP aux feedback loop gain step by step */
for (i = 0; i <= 0xf; i++) {
stage = up ? i : 0xf - i;
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON9,
0xf << 12, stage << 12);
usleep_range(100, 150);
}
}
static void hp_pull_down(struct mt6358_priv *priv, bool enable)
{
int i;
if (enable) {
for (i = 0x0; i <= 0x6; i++) {
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON4,
0x7, i);
usleep_range(600, 700);
}
} else {
for (i = 0x6; i >= 0x1; i--) {
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON4,
0x7, i);
usleep_range(600, 700);
}
}
}
static bool is_valid_hp_pga_idx(int reg_idx)
{
return (reg_idx >= DL_GAIN_8DB && reg_idx <= DL_GAIN_N_10DB) ||
reg_idx == DL_GAIN_N_40DB;
}
static void headset_volume_ramp(struct mt6358_priv *priv, int from, int to)
{
int offset = 0, count = 0, reg_idx;
if (!is_valid_hp_pga_idx(from) || !is_valid_hp_pga_idx(to))
dev_warn(priv->dev, "%s(), volume index is not valid, from %d, to %d\n",
__func__, from, to);
dev_info(priv->dev, "%s(), from %d, to %d\n",
__func__, from, to);
if (to > from)
offset = to - from;
else
offset = from - to;
while (offset >= 0) {
if (to > from)
reg_idx = from + count;
else
reg_idx = from - count;
if (is_valid_hp_pga_idx(reg_idx)) {
regmap_update_bits(priv->regmap,
MT6358_ZCD_CON2,
DL_GAIN_REG_MASK,
(reg_idx << 7) | reg_idx);
usleep_range(200, 300);
}
offset--;
count++;
}
}
static int mt6358_put_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_kcontrol_component(kcontrol);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg;
int ret;
ret = snd_soc_put_volsw(kcontrol, ucontrol);
if (ret < 0)
return ret;
switch (mc->reg) {
case MT6358_ZCD_CON2:
regmap_read(priv->regmap, MT6358_ZCD_CON2, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL] =
(reg >> RG_AUDHPLGAIN_SFT) & RG_AUDHPLGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTR] =
(reg >> RG_AUDHPRGAIN_SFT) & RG_AUDHPRGAIN_MASK;
break;
case MT6358_ZCD_CON1:
regmap_read(priv->regmap, MT6358_ZCD_CON1, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTL] =
(reg >> RG_AUDLOLGAIN_SFT) & RG_AUDLOLGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTR] =
(reg >> RG_AUDLORGAIN_SFT) & RG_AUDLORGAIN_MASK;
break;
case MT6358_ZCD_CON3:
regmap_read(priv->regmap, MT6358_ZCD_CON3, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_HSOUTL] =
(reg >> RG_AUDHSGAIN_SFT) & RG_AUDHSGAIN_MASK;
priv->ana_gain[AUDIO_ANALOG_VOLUME_HSOUTR] =
(reg >> RG_AUDHSGAIN_SFT) & RG_AUDHSGAIN_MASK;
break;
case MT6358_AUDENC_ANA_CON0:
case MT6358_AUDENC_ANA_CON1:
regmap_read(priv->regmap, MT6358_AUDENC_ANA_CON0, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_MICAMP1] =
(reg >> RG_AUDPREAMPLGAIN_SFT) & RG_AUDPREAMPLGAIN_MASK;
regmap_read(priv->regmap, MT6358_AUDENC_ANA_CON1, &reg);
priv->ana_gain[AUDIO_ANALOG_VOLUME_MICAMP2] =
(reg >> RG_AUDPREAMPRGAIN_SFT) & RG_AUDPREAMPRGAIN_MASK;
break;
}
return ret;
}
static const DECLARE_TLV_DB_SCALE(playback_tlv, -1000, 100, 0);
static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 600, 0);
static const struct snd_kcontrol_new mt6358_snd_controls[] = {
/* dl pga gain */
SOC_DOUBLE_EXT_TLV("Headphone Volume",
MT6358_ZCD_CON2, 0, 7, 0x12, 1,
snd_soc_get_volsw, mt6358_put_volsw, playback_tlv),
SOC_DOUBLE_EXT_TLV("Lineout Volume",
MT6358_ZCD_CON1, 0, 7, 0x12, 1,
snd_soc_get_volsw, mt6358_put_volsw, playback_tlv),
SOC_SINGLE_EXT_TLV("Handset Volume",
MT6358_ZCD_CON3, 0, 0x12, 1,
snd_soc_get_volsw, mt6358_put_volsw, playback_tlv),
/* ul pga gain */
SOC_DOUBLE_R_EXT_TLV("PGA Volume",
MT6358_AUDENC_ANA_CON0, MT6358_AUDENC_ANA_CON1,
8, 4, 0,
snd_soc_get_volsw, mt6358_put_volsw, pga_tlv),
};
/* MUX */
/* LOL MUX */
static const char * const lo_in_mux_map[] = {
"Open", "Mute", "Playback", "Test Mode"
};
static int lo_in_mux_map_value[] = {
0x0, 0x1, 0x2, 0x3,
};
static SOC_VALUE_ENUM_SINGLE_DECL(lo_in_mux_map_enum,
MT6358_AUDDEC_ANA_CON7,
RG_AUDLOLMUXINPUTSEL_VAUDP15_SFT,
RG_AUDLOLMUXINPUTSEL_VAUDP15_MASK,
lo_in_mux_map,
lo_in_mux_map_value);
static const struct snd_kcontrol_new lo_in_mux_control =
SOC_DAPM_ENUM("In Select", lo_in_mux_map_enum);
/*HP MUX */
enum {
HP_MUX_OPEN = 0,
HP_MUX_HPSPK,
HP_MUX_HP,
HP_MUX_TEST_MODE,
HP_MUX_HP_IMPEDANCE,
HP_MUX_MASK = 0x7,
};
static const char * const hp_in_mux_map[] = {
"Open",
"LoudSPK Playback",
"Audio Playback",
"Test Mode",
"HP Impedance",
"undefined1",
"undefined2",
"undefined3",
};
static int hp_in_mux_map_value[] = {
HP_MUX_OPEN,
HP_MUX_HPSPK,
HP_MUX_HP,
HP_MUX_TEST_MODE,
HP_MUX_HP_IMPEDANCE,
HP_MUX_OPEN,
HP_MUX_OPEN,
HP_MUX_OPEN,
};
static SOC_VALUE_ENUM_SINGLE_DECL(hpl_in_mux_map_enum,
SND_SOC_NOPM,
0,
HP_MUX_MASK,
hp_in_mux_map,
hp_in_mux_map_value);
static const struct snd_kcontrol_new hpl_in_mux_control =
SOC_DAPM_ENUM("HPL Select", hpl_in_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hpr_in_mux_map_enum,
SND_SOC_NOPM,
0,
HP_MUX_MASK,
hp_in_mux_map,
hp_in_mux_map_value);
static const struct snd_kcontrol_new hpr_in_mux_control =
SOC_DAPM_ENUM("HPR Select", hpr_in_mux_map_enum);
/* RCV MUX */
enum {
RCV_MUX_OPEN = 0,
RCV_MUX_MUTE,
RCV_MUX_VOICE_PLAYBACK,
RCV_MUX_TEST_MODE,
RCV_MUX_MASK = 0x3,
};
static const char * const rcv_in_mux_map[] = {
"Open", "Mute", "Voice Playback", "Test Mode"
};
static int rcv_in_mux_map_value[] = {
RCV_MUX_OPEN,
RCV_MUX_MUTE,
RCV_MUX_VOICE_PLAYBACK,
RCV_MUX_TEST_MODE,
};
static SOC_VALUE_ENUM_SINGLE_DECL(rcv_in_mux_map_enum,
SND_SOC_NOPM,
0,
RCV_MUX_MASK,
rcv_in_mux_map,
rcv_in_mux_map_value);
static const struct snd_kcontrol_new rcv_in_mux_control =
SOC_DAPM_ENUM("RCV Select", rcv_in_mux_map_enum);
/* DAC In MUX */
static const char * const dac_in_mux_map[] = {
"Normal Path", "Sgen"
};
static int dac_in_mux_map_value[] = {
0x0, 0x1,
};
static SOC_VALUE_ENUM_SINGLE_DECL(dac_in_mux_map_enum,
MT6358_AFE_TOP_CON0,
DL_SINE_ON_SFT,
DL_SINE_ON_MASK,
dac_in_mux_map,
dac_in_mux_map_value);
static const struct snd_kcontrol_new dac_in_mux_control =
SOC_DAPM_ENUM("DAC Select", dac_in_mux_map_enum);
/* AIF Out MUX */
static SOC_VALUE_ENUM_SINGLE_DECL(aif_out_mux_map_enum,
MT6358_AFE_TOP_CON0,
UL_SINE_ON_SFT,
UL_SINE_ON_MASK,
dac_in_mux_map,
dac_in_mux_map_value);
static const struct snd_kcontrol_new aif_out_mux_control =
SOC_DAPM_ENUM("AIF Out Select", aif_out_mux_map_enum);
/* Mic Type MUX */
enum {
MIC_TYPE_MUX_IDLE = 0,
MIC_TYPE_MUX_ACC,
MIC_TYPE_MUX_DMIC,
MIC_TYPE_MUX_DCC,
MIC_TYPE_MUX_DCC_ECM_DIFF,
MIC_TYPE_MUX_DCC_ECM_SINGLE,
MIC_TYPE_MUX_MASK = 0x7,
};
#define IS_DCC_BASE(type) ((type) == MIC_TYPE_MUX_DCC || \
(type) == MIC_TYPE_MUX_DCC_ECM_DIFF || \
(type) == MIC_TYPE_MUX_DCC_ECM_SINGLE)
static const char * const mic_type_mux_map[] = {
"Idle",
"ACC",
"DMIC",
"DCC",
"DCC_ECM_DIFF",
"DCC_ECM_SINGLE",
};
static int mic_type_mux_map_value[] = {
MIC_TYPE_MUX_IDLE,
MIC_TYPE_MUX_ACC,
MIC_TYPE_MUX_DMIC,
MIC_TYPE_MUX_DCC,
MIC_TYPE_MUX_DCC_ECM_DIFF,
MIC_TYPE_MUX_DCC_ECM_SINGLE,
};
static SOC_VALUE_ENUM_SINGLE_DECL(mic_type_mux_map_enum,
SND_SOC_NOPM,
0,
MIC_TYPE_MUX_MASK,
mic_type_mux_map,
mic_type_mux_map_value);
static const struct snd_kcontrol_new mic_type_mux_control =
SOC_DAPM_ENUM("Mic Type Select", mic_type_mux_map_enum);
/* ADC L MUX */
enum {
ADC_MUX_IDLE = 0,
ADC_MUX_AIN0,
ADC_MUX_PREAMPLIFIER,
ADC_MUX_IDLE1,
ADC_MUX_MASK = 0x3,
};
static const char * const adc_left_mux_map[] = {
"Idle", "AIN0", "Left Preamplifier", "Idle_1"
};
static int adc_mux_map_value[] = {
ADC_MUX_IDLE,
ADC_MUX_AIN0,
ADC_MUX_PREAMPLIFIER,
ADC_MUX_IDLE1,
};
static SOC_VALUE_ENUM_SINGLE_DECL(adc_left_mux_map_enum,
SND_SOC_NOPM,
0,
ADC_MUX_MASK,
adc_left_mux_map,
adc_mux_map_value);
static const struct snd_kcontrol_new adc_left_mux_control =
SOC_DAPM_ENUM("ADC L Select", adc_left_mux_map_enum);
/* ADC R MUX */
static const char * const adc_right_mux_map[] = {
"Idle", "AIN0", "Right Preamplifier", "Idle_1"
};
static SOC_VALUE_ENUM_SINGLE_DECL(adc_right_mux_map_enum,
SND_SOC_NOPM,
0,
ADC_MUX_MASK,
adc_right_mux_map,
adc_mux_map_value);
static const struct snd_kcontrol_new adc_right_mux_control =
SOC_DAPM_ENUM("ADC R Select", adc_right_mux_map_enum);
/* PGA L MUX */
enum {
PGA_MUX_NONE = 0,
PGA_MUX_AIN0,
PGA_MUX_AIN1,
PGA_MUX_AIN2,
PGA_MUX_MASK = 0x3,
};
static const char * const pga_mux_map[] = {
"None", "AIN0", "AIN1", "AIN2"
};
static int pga_mux_map_value[] = {
PGA_MUX_NONE,
PGA_MUX_AIN0,
PGA_MUX_AIN1,
PGA_MUX_AIN2,
};
static SOC_VALUE_ENUM_SINGLE_DECL(pga_left_mux_map_enum,
SND_SOC_NOPM,
0,
PGA_MUX_MASK,
pga_mux_map,
pga_mux_map_value);
static const struct snd_kcontrol_new pga_left_mux_control =
SOC_DAPM_ENUM("PGA L Select", pga_left_mux_map_enum);
/* PGA R MUX */
static SOC_VALUE_ENUM_SINGLE_DECL(pga_right_mux_map_enum,
SND_SOC_NOPM,
0,
PGA_MUX_MASK,
pga_mux_map,
pga_mux_map_value);
static const struct snd_kcontrol_new pga_right_mux_control =
SOC_DAPM_ENUM("PGA R Select", pga_right_mux_map_enum);
static int mt_clksq_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
dev_dbg(priv->dev, "%s(), event = 0x%x\n", __func__, event);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* audio clk source from internal dcxo */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON6,
RG_CLKSQ_IN_SEL_TEST_MASK_SFT,
0x0);
break;
default:
break;
}
return 0;
}
static int mt_sgen_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
dev_dbg(priv->dev, "%s(), event = 0x%x\n", __func__, event);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* sdm audio fifo clock power on */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x0006);
/* scrambler clock on enable */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON0, 0xCBA1);
/* sdm power on */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x0003);
/* sdm fifo enable */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x000B);
regmap_update_bits(priv->regmap, MT6358_AFE_SGEN_CFG0,
0xff3f,
0x0000);
regmap_update_bits(priv->regmap, MT6358_AFE_SGEN_CFG1,
0xffff,
0x0001);
break;
case SND_SOC_DAPM_POST_PMD:
/* DL scrambler disabling sequence */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x0000);
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON0, 0xcba0);
break;
default:
break;
}
return 0;
}
static int mt_aif_in_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
dev_info(priv->dev, "%s(), event 0x%x, rate %d\n",
__func__, event, priv->dl_rate);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
playback_gpio_set(priv);
/* sdm audio fifo clock power on */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x0006);
/* scrambler clock on enable */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON0, 0xCBA1);
/* sdm power on */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x0003);
/* sdm fifo enable */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x000B);
break;
case SND_SOC_DAPM_POST_PMD:
/* DL scrambler disabling sequence */
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON2, 0x0000);
regmap_write(priv->regmap, MT6358_AFUNC_AUD_CON0, 0xcba0);
playback_gpio_reset(priv);
break;
default:
break;
}
return 0;
}
static int mtk_hp_enable(struct mt6358_priv *priv)
{
/* Pull-down HPL/R to AVSS28_AUD */
hp_pull_down(priv, true);
/* release HP CMFB gate rstb */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON4,
0x1 << 6, 0x1 << 6);
/* Reduce ESD resistance of AU_REFN */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON2, 0x4000);
/* Set HPR/HPL gain as minimum (~ -40dB) */
regmap_write(priv->regmap, MT6358_ZCD_CON2, DL_GAIN_N_40DB_REG);
/* Turn on DA_600K_NCP_VA18 */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON1, 0x0001);
/* Set NCP clock as 604kHz // 26MHz/43 = 604KHz */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON2, 0x002c);
/* Toggle RG_DIVCKS_CHG */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON0, 0x0001);
/* Set NCP soft start mode as default mode: 100us */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON4, 0x0003);
/* Enable NCP */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON3, 0x0000);
usleep_range(250, 270);
/* Enable cap-less LDOs (1.5V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x1055, 0x1055);
/* Enable NV regulator (-1.2V) */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON15, 0x0001);
usleep_range(100, 120);
/* Disable AUD_ZCD */
hp_zcd_disable(priv);
/* Disable headphone short-circuit protection */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x3000);
/* Enable IBIST */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON12, 0x0055);
/* Set HP DR bias current optimization, 010: 6uA */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON11, 0x4900);
/* Set HP & ZCD bias current optimization */
/* 01: ZCD: 4uA, HP/HS/LO: 5uA */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON12, 0x0055);
/* Set HPP/N STB enhance circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON2, 0x4033);
/* Enable HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x000c);
/* Enable HP aux feedback loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x003c);
/* Enable HP aux CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0c00);
/* Enable HP driver bias circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x30c0);
/* Enable HP driver core circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x30f0);
/* Short HP main output to HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x00fc);
/* Enable HP main CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0e00);
/* Disable HP aux CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0200);
/* Select CMFB resistor bulk to AC mode */
/* Selec HS/LO cap size (6.5pF default) */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON10, 0x0000);
/* Enable HP main output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x00ff);
/* Enable HPR/L main output stage step by step */
hp_main_output_ramp(priv, true);
/* Reduce HP aux feedback loop gain */
hp_aux_feedback_loop_gain_ramp(priv, true);
/* Disable HP aux feedback loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fcf);
/* apply volume setting */
headset_volume_ramp(priv,
DL_GAIN_N_10DB,
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL]);
/* Disable HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fc3);
/* Unshort HP main output to HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3f03);
usleep_range(100, 120);
/* Enable AUD_CLK */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13, 0x1, 0x1);
/* Enable Audio DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x30ff);
/* Enable low-noise mode of DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0xf201);
usleep_range(100, 120);
/* Switch HPL MUX to audio DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x32ff);
/* Switch HPR MUX to audio DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x3aff);
/* Disable Pull-down HPL/R to AVSS28_AUD */
hp_pull_down(priv, false);
return 0;
}
static int mtk_hp_disable(struct mt6358_priv *priv)
{
/* Pull-down HPL/R to AVSS28_AUD */
hp_pull_down(priv, true);
/* HPR/HPL mux to open */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x0f00, 0x0000);
/* Disable low-noise mode of DAC */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON9,
0x0001, 0x0000);
/* Disable Audio DAC */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x000f, 0x0000);
/* Disable AUD_CLK */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13, 0x1, 0x0);
/* Short HP main output to HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fc3);
/* Enable HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fcf);
/* decrease HPL/R gain to normal gain step by step */
headset_volume_ramp(priv,
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL],
DL_GAIN_N_40DB);
/* Enable HP aux feedback loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fff);
/* Reduce HP aux feedback loop gain */
hp_aux_feedback_loop_gain_ramp(priv, false);
/* decrease HPR/L main output stage step by step */
hp_main_output_ramp(priv, false);
/* Disable HP main output stage */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3, 0x0);
/* Enable HP aux CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0e00);
/* Disable HP main CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0c00);
/* Unshort HP main output to HP aux output stage */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON1,
0x3 << 6, 0x0);
/* Disable HP driver core circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x3 << 4, 0x0);
/* Disable HP driver bias circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x3 << 6, 0x0);
/* Disable HP aux CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0000);
/* Disable HP aux feedback loop */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON1,
0x3 << 4, 0x0);
/* Disable HP aux output stage */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON1,
0x3 << 2, 0x0);
/* Disable IBIST */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON12,
0x1 << 8, 0x1 << 8);
/* Disable NV regulator (-1.2V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON15, 0x1, 0x0);
/* Disable cap-less LDOs (1.5V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x1055, 0x0);
/* Disable NCP */
regmap_update_bits(priv->regmap, MT6358_AUDNCP_CLKDIV_CON3,
0x1, 0x1);
/* Increase ESD resistance of AU_REFN */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON2,
0x1 << 14, 0x0);
/* Set HP CMFB gate rstb */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON4,
0x1 << 6, 0x0);
/* disable Pull-down HPL/R to AVSS28_AUD */
hp_pull_down(priv, false);
return 0;
}
static int mtk_hp_spk_enable(struct mt6358_priv *priv)
{
/* Pull-down HPL/R to AVSS28_AUD */
hp_pull_down(priv, true);
/* release HP CMFB gate rstb */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON4,
0x1 << 6, 0x1 << 6);
/* Reduce ESD resistance of AU_REFN */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON2, 0x4000);
/* Set HPR/HPL gain to -10dB */
regmap_write(priv->regmap, MT6358_ZCD_CON2, DL_GAIN_N_10DB_REG);
/* Turn on DA_600K_NCP_VA18 */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON1, 0x0001);
/* Set NCP clock as 604kHz // 26MHz/43 = 604KHz */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON2, 0x002c);
/* Toggle RG_DIVCKS_CHG */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON0, 0x0001);
/* Set NCP soft start mode as default mode: 100us */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON4, 0x0003);
/* Enable NCP */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON3, 0x0000);
usleep_range(250, 270);
/* Enable cap-less LDOs (1.5V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x1055, 0x1055);
/* Enable NV regulator (-1.2V) */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON15, 0x0001);
usleep_range(100, 120);
/* Disable AUD_ZCD */
hp_zcd_disable(priv);
/* Disable headphone short-circuit protection */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x3000);
/* Enable IBIST */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON12, 0x0055);
/* Set HP DR bias current optimization, 010: 6uA */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON11, 0x4900);
/* Set HP & ZCD bias current optimization */
/* 01: ZCD: 4uA, HP/HS/LO: 5uA */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON12, 0x0055);
/* Set HPP/N STB enhance circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON2, 0x4033);
/* Disable Pull-down HPL/R to AVSS28_AUD */
hp_pull_down(priv, false);
/* Enable HP driver bias circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x30c0);
/* Enable HP driver core circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x30f0);
/* Enable HP main CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0200);
/* Select CMFB resistor bulk to AC mode */
/* Selec HS/LO cap size (6.5pF default) */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON10, 0x0000);
/* Enable HP main output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x0003);
/* Enable HPR/L main output stage step by step */
hp_main_output_ramp(priv, true);
/* Set LO gain as minimum (~ -40dB) */
regmap_write(priv->regmap, MT6358_ZCD_CON1, DL_GAIN_N_40DB_REG);
/* apply volume setting */
headset_volume_ramp(priv,
DL_GAIN_N_10DB,
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL]);
/* Set LO STB enhance circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON7, 0x0110);
/* Enable LO driver bias circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON7, 0x0112);
/* Enable LO driver core circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON7, 0x0113);
/* Set LOL gain to normal gain step by step */
regmap_update_bits(priv->regmap, MT6358_ZCD_CON1,
RG_AUDLOLGAIN_MASK_SFT,
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTL] <<
RG_AUDLOLGAIN_SFT);
regmap_update_bits(priv->regmap, MT6358_ZCD_CON1,
RG_AUDLORGAIN_MASK_SFT,
priv->ana_gain[AUDIO_ANALOG_VOLUME_LINEOUTR] <<
RG_AUDLORGAIN_SFT);
/* Enable AUD_CLK */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13, 0x1, 0x1);
/* Enable Audio DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x30f9);
/* Enable low-noise mode of DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0201);
/* Switch LOL MUX to audio DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON7, 0x011b);
/* Switch HPL/R MUX to Line-out */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x35f9);
return 0;
}
static int mtk_hp_spk_disable(struct mt6358_priv *priv)
{
/* HPR/HPL mux to open */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x0f00, 0x0000);
/* LOL mux to open */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON7,
0x3 << 2, 0x0000);
/* Disable Audio DAC */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x000f, 0x0000);
/* Disable AUD_CLK */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13, 0x1, 0x0);
/* decrease HPL/R gain to normal gain step by step */
headset_volume_ramp(priv,
priv->ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL],
DL_GAIN_N_40DB);
/* decrease LOL gain to minimum gain step by step */
regmap_update_bits(priv->regmap, MT6358_ZCD_CON1,
DL_GAIN_REG_MASK, DL_GAIN_N_40DB_REG);
/* decrease HPR/L main output stage step by step */
hp_main_output_ramp(priv, false);
/* Disable HP main output stage */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3, 0x0);
/* Short HP main output to HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fc3);
/* Enable HP aux output stage */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fcf);
/* Enable HP aux feedback loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON1, 0x3fff);
/* Reduce HP aux feedback loop gain */
hp_aux_feedback_loop_gain_ramp(priv, false);
/* Disable HP driver core circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x3 << 4, 0x0);
/* Disable LO driver core circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON7,
0x1, 0x0);
/* Disable HP driver bias circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x3 << 6, 0x0);
/* Disable LO driver bias circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON7,
0x1 << 1, 0x0);
/* Disable HP aux CMFB loop */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON9,
0xff << 8, 0x0000);
/* Disable IBIST */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON12,
0x1 << 8, 0x1 << 8);
/* Disable NV regulator (-1.2V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON15, 0x1, 0x0);
/* Disable cap-less LDOs (1.5V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14, 0x1055, 0x0);
/* Disable NCP */
regmap_update_bits(priv->regmap, MT6358_AUDNCP_CLKDIV_CON3, 0x1, 0x1);
/* Set HP CMFB gate rstb */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON4,
0x1 << 6, 0x0);
/* disable Pull-down HPL/R to AVSS28_AUD */
hp_pull_down(priv, false);
return 0;
}
static int mt_hp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
unsigned int mux = dapm_kcontrol_get_value(w->kcontrols[0]);
int device = DEVICE_HP;
dev_info(priv->dev, "%s(), event 0x%x, dev_counter[DEV_HP] %d, mux %u\n",
__func__,
event,
priv->dev_counter[device],
mux);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
priv->dev_counter[device]++;
if (priv->dev_counter[device] > 1)
break; /* already enabled, do nothing */
else if (priv->dev_counter[device] <= 0)
dev_warn(priv->dev, "%s(), dev_counter[DEV_HP] %d <= 0\n",
__func__,
priv->dev_counter[device]);
priv->mux_select[MUX_HP_L] = mux;
if (mux == HP_MUX_HP)
mtk_hp_enable(priv);
else if (mux == HP_MUX_HPSPK)
mtk_hp_spk_enable(priv);
break;
case SND_SOC_DAPM_PRE_PMD:
priv->dev_counter[device]--;
if (priv->dev_counter[device] > 0) {
break; /* still being used, don't close */
} else if (priv->dev_counter[device] < 0) {
dev_warn(priv->dev, "%s(), dev_counter[DEV_HP] %d < 0\n",
__func__,
priv->dev_counter[device]);
priv->dev_counter[device] = 0;
break;
}
if (priv->mux_select[MUX_HP_L] == HP_MUX_HP)
mtk_hp_disable(priv);
else if (priv->mux_select[MUX_HP_L] == HP_MUX_HPSPK)
mtk_hp_spk_disable(priv);
priv->mux_select[MUX_HP_L] = mux;
break;
default:
break;
}
return 0;
}
static int mt_rcv_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
dev_info(priv->dev, "%s(), event 0x%x, mux %u\n",
__func__,
event,
dapm_kcontrol_get_value(w->kcontrols[0]));
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* Reduce ESD resistance of AU_REFN */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON2, 0x4000);
/* Turn on DA_600K_NCP_VA18 */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON1, 0x0001);
/* Set NCP clock as 604kHz // 26MHz/43 = 604KHz */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON2, 0x002c);
/* Toggle RG_DIVCKS_CHG */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON0, 0x0001);
/* Set NCP soft start mode as default mode: 100us */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON4, 0x0003);
/* Enable NCP */
regmap_write(priv->regmap, MT6358_AUDNCP_CLKDIV_CON3, 0x0000);
usleep_range(250, 270);
/* Enable cap-less LDOs (1.5V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x1055, 0x1055);
/* Enable NV regulator (-1.2V) */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON15, 0x0001);
usleep_range(100, 120);
/* Disable AUD_ZCD */
hp_zcd_disable(priv);
/* Disable handset short-circuit protection */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON6, 0x0010);
/* Enable IBIST */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON12, 0x0055);
/* Set HP DR bias current optimization, 010: 6uA */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON11, 0x4900);
/* Set HP & ZCD bias current optimization */
/* 01: ZCD: 4uA, HP/HS/LO: 5uA */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON12, 0x0055);
/* Set HS STB enhance circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON6, 0x0090);
/* Disable HP main CMFB loop */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0000);
/* Select CMFB resistor bulk to AC mode */
/* Selec HS/LO cap size (6.5pF default) */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON10, 0x0000);
/* Enable HS driver bias circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON6, 0x0092);
/* Enable HS driver core circuits */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON6, 0x0093);
/* Enable AUD_CLK */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13,
0x1, 0x1);
/* Enable Audio DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON0, 0x0009);
/* Enable low-noise mode of DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON9, 0x0001);
/* Switch HS MUX to audio DAC */
regmap_write(priv->regmap, MT6358_AUDDEC_ANA_CON6, 0x009b);
break;
case SND_SOC_DAPM_PRE_PMD:
/* HS mux to open */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON6,
RG_AUDHSMUXINPUTSEL_VAUDP15_MASK_SFT,
RCV_MUX_OPEN);
/* Disable Audio DAC */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
0x000f, 0x0000);
/* Disable AUD_CLK */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13,
0x1, 0x0);
/* decrease HS gain to minimum gain step by step */
regmap_write(priv->regmap, MT6358_ZCD_CON3, DL_GAIN_N_40DB);
/* Disable HS driver core circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON6,
0x1, 0x0);
/* Disable HS driver bias circuits */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON6,
0x1 << 1, 0x0000);
/* Disable HP aux CMFB loop */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON9,
0xff << 8, 0x0);
/* Enable HP main CMFB Switch */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON9,
0xff << 8, 0x2 << 8);
/* Disable IBIST */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON12,
0x1 << 8, 0x1 << 8);
/* Disable NV regulator (-1.2V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON15,
0x1, 0x0);
/* Disable cap-less LDOs (1.5V) */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x1055, 0x0);
/* Disable NCP */
regmap_update_bits(priv->regmap, MT6358_AUDNCP_CLKDIV_CON3,
0x1, 0x1);
break;
default:
break;
}
return 0;
}
static int mt_aif_out_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
dev_dbg(priv->dev, "%s(), event 0x%x, rate %d\n",
__func__, event, priv->ul_rate);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
capture_gpio_set(priv);
break;
case SND_SOC_DAPM_POST_PMD:
capture_gpio_reset(priv);
break;
default:
break;
}
return 0;
}
static int mt_adc_supply_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
dev_dbg(priv->dev, "%s(), event 0x%x\n",
__func__, event);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* Enable audio ADC CLKGEN */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13,
0x1 << 5, 0x1 << 5);
/* ADC CLK from CLKGEN (13MHz) */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON3,
0x0000);
/* Enable LCLDO_ENC 1P8V */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x2500, 0x0100);
/* LCLDO_ENC remote sense */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x2500, 0x2500);
break;
case SND_SOC_DAPM_POST_PMD:
/* LCLDO_ENC remote sense off */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x2500, 0x0100);
/* disable LCLDO_ENC 1P8V */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON14,
0x2500, 0x0000);
/* ADC CLK from CLKGEN (13MHz) */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON3, 0x0000);
/* disable audio ADC CLKGEN */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON13,
0x1 << 5, 0x0 << 5);
break;
default:
break;
}
return 0;
}
static int mt6358_amic_enable(struct mt6358_priv *priv)
{
unsigned int mic_type = priv->mux_select[MUX_MIC_TYPE];
unsigned int mux_pga_l = priv->mux_select[MUX_PGA_L];
unsigned int mux_pga_r = priv->mux_select[MUX_PGA_R];
dev_info(priv->dev, "%s(), mux, mic %u, pga l %u, pga r %u\n",
__func__, mic_type, mux_pga_l, mux_pga_r);
if (IS_DCC_BASE(mic_type)) {
/* DCC 50k CLK (from 26M) */
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2062);
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2062);
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2060);
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2061);
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG1, 0x0100);
}
/* mic bias 0 */
if (mux_pga_l == PGA_MUX_AIN0 || mux_pga_l == PGA_MUX_AIN2 ||
mux_pga_r == PGA_MUX_AIN0 || mux_pga_r == PGA_MUX_AIN2) {
switch (mic_type) {
case MIC_TYPE_MUX_DCC_ECM_DIFF:
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON9,
0xff00, 0x7700);
break;
case MIC_TYPE_MUX_DCC_ECM_SINGLE:
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON9,
0xff00, 0x1100);
break;
default:
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON9,
0xff00, 0x0000);
break;
}
/* Enable MICBIAS0, MISBIAS0 = 1P9V */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON9,
0xff, 0x21);
}
/* mic bias 1 */
if (mux_pga_l == PGA_MUX_AIN1 || mux_pga_r == PGA_MUX_AIN1) {
/* Enable MICBIAS1, MISBIAS1 = 2P6V */
if (mic_type == MIC_TYPE_MUX_DCC_ECM_SINGLE)
regmap_write(priv->regmap,
MT6358_AUDENC_ANA_CON10, 0x0161);
else
regmap_write(priv->regmap,
MT6358_AUDENC_ANA_CON10, 0x0061);
}
if (IS_DCC_BASE(mic_type)) {
/* Audio L/R preamplifier DCC precharge */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
0xf8ff, 0x0004);
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
0xf8ff, 0x0004);
} else {
/* reset reg */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
0xf8ff, 0x0000);
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
0xf8ff, 0x0000);
}
if (mux_pga_l != PGA_MUX_NONE) {
/* L preamplifier input sel */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
RG_AUDPREAMPLINPUTSEL_MASK_SFT,
mux_pga_l << RG_AUDPREAMPLINPUTSEL_SFT);
/* L preamplifier enable */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
RG_AUDPREAMPLON_MASK_SFT,
0x1 << RG_AUDPREAMPLON_SFT);
if (IS_DCC_BASE(mic_type)) {
/* L preamplifier DCCEN */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
RG_AUDPREAMPLDCCEN_MASK_SFT,
0x1 << RG_AUDPREAMPLDCCEN_SFT);
}
/* L ADC input sel : L PGA. Enable audio L ADC */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
RG_AUDADCLINPUTSEL_MASK_SFT,
ADC_MUX_PREAMPLIFIER <<
RG_AUDADCLINPUTSEL_SFT);
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
RG_AUDADCLPWRUP_MASK_SFT,
0x1 << RG_AUDADCLPWRUP_SFT);
}
if (mux_pga_r != PGA_MUX_NONE) {
/* R preamplifier input sel */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
RG_AUDPREAMPRINPUTSEL_MASK_SFT,
mux_pga_r << RG_AUDPREAMPRINPUTSEL_SFT);
/* R preamplifier enable */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
RG_AUDPREAMPRON_MASK_SFT,
0x1 << RG_AUDPREAMPRON_SFT);
if (IS_DCC_BASE(mic_type)) {
/* R preamplifier DCCEN */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
RG_AUDPREAMPRDCCEN_MASK_SFT,
0x1 << RG_AUDPREAMPRDCCEN_SFT);
}
/* R ADC input sel : R PGA. Enable audio R ADC */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
RG_AUDADCRINPUTSEL_MASK_SFT,
ADC_MUX_PREAMPLIFIER <<
RG_AUDADCRINPUTSEL_SFT);
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
RG_AUDADCRPWRUP_MASK_SFT,
0x1 << RG_AUDADCRPWRUP_SFT);
}
if (IS_DCC_BASE(mic_type)) {
usleep_range(100, 150);
/* Audio L preamplifier DCC precharge off */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
RG_AUDPREAMPLDCPRECHARGE_MASK_SFT, 0x0);
/* Audio R preamplifier DCC precharge off */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
RG_AUDPREAMPRDCPRECHARGE_MASK_SFT, 0x0);
/* Short body to ground in PGA */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON3,
0x1 << 12, 0x0);
}
/* here to set digital part */
mt6358_mtkaif_tx_enable(priv);
/* UL dmic setting off */
regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_H, 0x0000);
/* UL turn on */
regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_L, 0x0001);
return 0;
}
static void mt6358_amic_disable(struct mt6358_priv *priv)
{
unsigned int mic_type = priv->mux_select[MUX_MIC_TYPE];
unsigned int mux_pga_l = priv->mux_select[MUX_PGA_L];
unsigned int mux_pga_r = priv->mux_select[MUX_PGA_R];
dev_info(priv->dev, "%s(), mux, mic %u, pga l %u, pga r %u\n",
__func__, mic_type, mux_pga_l, mux_pga_r);
/* UL turn off */
regmap_update_bits(priv->regmap, MT6358_AFE_UL_SRC_CON0_L,
0x0001, 0x0000);
/* disable aud_pad TX fifos */
mt6358_mtkaif_tx_disable(priv);
/* L ADC input sel : off, disable L ADC */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
0xf000, 0x0000);
/* L preamplifier DCCEN */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
0x1 << 1, 0x0);
/* L preamplifier input sel : off, L PGA 0 dB gain */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
0xfffb, 0x0000);
/* disable L preamplifier DCC precharge */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
0x1 << 2, 0x0);
/* R ADC input sel : off, disable R ADC */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
0xf000, 0x0000);
/* R preamplifier DCCEN */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
0x1 << 1, 0x0);
/* R preamplifier input sel : off, R PGA 0 dB gain */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
0x0ffb, 0x0000);
/* disable R preamplifier DCC precharge */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
0x1 << 2, 0x0);
/* mic bias */
/* Disable MICBIAS0, MISBIAS0 = 1P7V */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON9, 0x0000);
/* Disable MICBIAS1 */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON10,
0x0001, 0x0000);
if (IS_DCC_BASE(mic_type)) {
/* dcclk_gen_on=1'b0 */
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2060);
/* dcclk_pdn=1'b1 */
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2062);
/* dcclk_ref_ck_sel=2'b00 */
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2062);
/* dcclk_div=11'b00100000011 */
regmap_write(priv->regmap, MT6358_AFE_DCCLK_CFG0, 0x2062);
}
}
static int mt6358_dmic_enable(struct mt6358_priv *priv)
{
dev_info(priv->dev, "%s()\n", __func__);
/* mic bias */
/* Enable MICBIAS0, MISBIAS0 = 1P9V */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON9, 0x0021);
/* RG_BANDGAPGEN=1'b0 */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON10,
0x1 << 12, 0x0);
/* DMIC enable */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON8, 0x0005);
/* here to set digital part */
mt6358_mtkaif_tx_enable(priv);
/* UL dmic setting */
regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_H, 0x0080);
/* UL turn on */
regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_L, 0x0003);
return 0;
}
static void mt6358_dmic_disable(struct mt6358_priv *priv)
{
dev_info(priv->dev, "%s()\n", __func__);
/* UL turn off */
regmap_update_bits(priv->regmap, MT6358_AFE_UL_SRC_CON0_L,
0x0003, 0x0000);
/* disable aud_pad TX fifos */
mt6358_mtkaif_tx_disable(priv);
/* DMIC disable */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON8, 0x0000);
/* mic bias */
/* MISBIAS0 = 1P7V */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON9, 0x0001);
/* RG_BANDGAPGEN=1'b0 */
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON10,
0x1 << 12, 0x0);
/* MICBIA0 disable */
regmap_write(priv->regmap, MT6358_AUDENC_ANA_CON9, 0x0000);
}
static void mt6358_restore_pga(struct mt6358_priv *priv)
{
unsigned int gain_l, gain_r;
gain_l = priv->ana_gain[AUDIO_ANALOG_VOLUME_MICAMP1];
gain_r = priv->ana_gain[AUDIO_ANALOG_VOLUME_MICAMP2];
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON0,
RG_AUDPREAMPLGAIN_MASK_SFT,
gain_l << RG_AUDPREAMPLGAIN_SFT);
regmap_update_bits(priv->regmap, MT6358_AUDENC_ANA_CON1,
RG_AUDPREAMPRGAIN_MASK_SFT,
gain_r << RG_AUDPREAMPRGAIN_SFT);
}
static int mt_mic_type_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
unsigned int mux = dapm_kcontrol_get_value(w->kcontrols[0]);
dev_dbg(priv->dev, "%s(), event 0x%x, mux %u\n",
__func__, event, mux);
switch (event) {
case SND_SOC_DAPM_WILL_PMU:
priv->mux_select[MUX_MIC_TYPE] = mux;
break;
case SND_SOC_DAPM_PRE_PMU:
switch (mux) {
case MIC_TYPE_MUX_DMIC:
mt6358_dmic_enable(priv);
break;
default:
mt6358_amic_enable(priv);
break;
}
mt6358_restore_pga(priv);
break;
case SND_SOC_DAPM_POST_PMD:
switch (priv->mux_select[MUX_MIC_TYPE]) {
case MIC_TYPE_MUX_DMIC:
mt6358_dmic_disable(priv);
break;
default:
mt6358_amic_disable(priv);
break;
}
priv->mux_select[MUX_MIC_TYPE] = mux;
break;
default:
break;
}
return 0;
}
static int mt_adc_l_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
unsigned int mux = dapm_kcontrol_get_value(w->kcontrols[0]);
dev_dbg(priv->dev, "%s(), event = 0x%x, mux %u\n",
__func__, event, mux);
priv->mux_select[MUX_ADC_L] = mux;
return 0;
}
static int mt_adc_r_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
unsigned int mux = dapm_kcontrol_get_value(w->kcontrols[0]);
dev_dbg(priv->dev, "%s(), event = 0x%x, mux %u\n",
__func__, event, mux);
priv->mux_select[MUX_ADC_R] = mux;
return 0;
}
static int mt_pga_left_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
unsigned int mux = dapm_kcontrol_get_value(w->kcontrols[0]);
dev_dbg(priv->dev, "%s(), event = 0x%x, mux %u\n",
__func__, event, mux);
priv->mux_select[MUX_PGA_L] = mux;
return 0;
}
static int mt_pga_right_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
unsigned int mux = dapm_kcontrol_get_value(w->kcontrols[0]);
dev_dbg(priv->dev, "%s(), event = 0x%x, mux %u\n",
__func__, event, mux);
priv->mux_select[MUX_PGA_R] = mux;
return 0;
}
static int mt_delay_250_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
switch (event) {
case SND_SOC_DAPM_POST_PMU:
usleep_range(250, 270);
break;
case SND_SOC_DAPM_PRE_PMD:
usleep_range(250, 270);
break;
default:
break;
}
return 0;
}
/* DAPM Widgets */
static const struct snd_soc_dapm_widget mt6358_dapm_widgets[] = {
/* Global Supply*/
SND_SOC_DAPM_SUPPLY_S("CLK_BUF", SUPPLY_SEQ_CLK_BUF,
MT6358_DCXO_CW14,
RG_XO_AUDIO_EN_M_SFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AUDGLB", SUPPLY_SEQ_AUD_GLB,
MT6358_AUDDEC_ANA_CON13,
RG_AUDGLB_PWRDN_VA28_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("CLKSQ Audio", SUPPLY_SEQ_CLKSQ,
MT6358_AUDENC_ANA_CON6,
RG_CLKSQ_EN_SFT, 0,
mt_clksq_event,
SND_SOC_DAPM_PRE_PMU),
SND_SOC_DAPM_SUPPLY_S("AUDNCP_CK", SUPPLY_SEQ_TOP_CK,
MT6358_AUD_TOP_CKPDN_CON0,
RG_AUDNCP_CK_PDN_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("ZCD13M_CK", SUPPLY_SEQ_TOP_CK,
MT6358_AUD_TOP_CKPDN_CON0,
RG_ZCD13M_CK_PDN_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AUD_CK", SUPPLY_SEQ_TOP_CK_LAST,
MT6358_AUD_TOP_CKPDN_CON0,
RG_AUD_CK_PDN_SFT, 1,
mt_delay_250_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_SUPPLY_S("AUDIF_CK", SUPPLY_SEQ_TOP_CK,
MT6358_AUD_TOP_CKPDN_CON0,
RG_AUDIF_CK_PDN_SFT, 1, NULL, 0),
/* Digital Clock */
SND_SOC_DAPM_SUPPLY_S("AUDIO_TOP_AFE_CTL", SUPPLY_SEQ_AUD_TOP_LAST,
MT6358_AUDIO_TOP_CON0,
PDN_AFE_CTL_SFT, 1,
mt_delay_250_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_SUPPLY_S("AUDIO_TOP_DAC_CTL", SUPPLY_SEQ_AUD_TOP,
MT6358_AUDIO_TOP_CON0,
PDN_DAC_CTL_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AUDIO_TOP_ADC_CTL", SUPPLY_SEQ_AUD_TOP,
MT6358_AUDIO_TOP_CON0,
PDN_ADC_CTL_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AUDIO_TOP_I2S_DL", SUPPLY_SEQ_AUD_TOP,
MT6358_AUDIO_TOP_CON0,
PDN_I2S_DL_CTL_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AUDIO_TOP_PWR_CLK", SUPPLY_SEQ_AUD_TOP,
MT6358_AUDIO_TOP_CON0,
PWR_CLK_DIS_CTL_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AUDIO_TOP_PDN_AFE_TESTMODEL", SUPPLY_SEQ_AUD_TOP,
MT6358_AUDIO_TOP_CON0,
PDN_AFE_TESTMODEL_CTL_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AUDIO_TOP_PDN_RESERVED", SUPPLY_SEQ_AUD_TOP,
MT6358_AUDIO_TOP_CON0,
PDN_RESERVED_SFT, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("DL Digital Clock", SND_SOC_NOPM,
0, 0, NULL, 0),
/* AFE ON */
SND_SOC_DAPM_SUPPLY_S("AFE_ON", SUPPLY_SEQ_AFE,
MT6358_AFE_UL_DL_CON0, AFE_ON_SFT, 0,
NULL, 0),
/* AIF Rx*/
SND_SOC_DAPM_AIF_IN_E("AIF_RX", "AIF1 Playback", 0,
MT6358_AFE_DL_SRC2_CON0_L,
DL_2_SRC_ON_TMP_CTL_PRE_SFT, 0,
mt_aif_in_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
/* DL Supply */
SND_SOC_DAPM_SUPPLY("DL Power Supply", SND_SOC_NOPM,
0, 0, NULL, 0),
/* DAC */
SND_SOC_DAPM_MUX("DAC In Mux", SND_SOC_NOPM, 0, 0, &dac_in_mux_control),
SND_SOC_DAPM_DAC("DACL", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DACR", NULL, SND_SOC_NOPM, 0, 0),
/* LOL */
SND_SOC_DAPM_MUX("LOL Mux", SND_SOC_NOPM, 0, 0, &lo_in_mux_control),
SND_SOC_DAPM_SUPPLY("LO Stability Enh", MT6358_AUDDEC_ANA_CON7,
RG_LOOUTPUTSTBENH_VAUDP15_SFT, 0, NULL, 0),
SND_SOC_DAPM_OUT_DRV("LOL Buffer", MT6358_AUDDEC_ANA_CON7,
RG_AUDLOLPWRUP_VAUDP15_SFT, 0, NULL, 0),
/* Headphone */
SND_SOC_DAPM_MUX_E("HPL Mux", SND_SOC_NOPM, 0, 0,
&hpl_in_mux_control,
mt_hp_event,
SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_MUX_E("HPR Mux", SND_SOC_NOPM, 0, 0,
&hpr_in_mux_control,
mt_hp_event,
SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_PRE_PMD),
/* Receiver */
SND_SOC_DAPM_MUX_E("RCV Mux", SND_SOC_NOPM, 0, 0,
&rcv_in_mux_control,
mt_rcv_event,
SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_PRE_PMD),
/* Outputs */
SND_SOC_DAPM_OUTPUT("Receiver"),
SND_SOC_DAPM_OUTPUT("Headphone L"),
SND_SOC_DAPM_OUTPUT("Headphone R"),
SND_SOC_DAPM_OUTPUT("Headphone L Ext Spk Amp"),
SND_SOC_DAPM_OUTPUT("Headphone R Ext Spk Amp"),
SND_SOC_DAPM_OUTPUT("LINEOUT L"),
SND_SOC_DAPM_OUTPUT("LINEOUT L HSSPK"),
/* SGEN */
SND_SOC_DAPM_SUPPLY("SGEN DL Enable", MT6358_AFE_SGEN_CFG0,
SGEN_DAC_EN_CTL_SFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("SGEN MUTE", MT6358_AFE_SGEN_CFG0,
SGEN_MUTE_SW_CTL_SFT, 1,
mt_sgen_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("SGEN DL SRC", MT6358_AFE_DL_SRC2_CON0_L,
DL_2_SRC_ON_TMP_CTL_PRE_SFT, 0, NULL, 0),
SND_SOC_DAPM_INPUT("SGEN DL"),
/* Uplinks */
SND_SOC_DAPM_AIF_OUT_E("AIF1TX", "AIF1 Capture", 0,
SND_SOC_NOPM, 0, 0,
mt_aif_out_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY_S("ADC Supply", SUPPLY_SEQ_ADC_SUPPLY,
SND_SOC_NOPM, 0, 0,
mt_adc_supply_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
/* Uplinks MUX */
SND_SOC_DAPM_MUX("AIF Out Mux", SND_SOC_NOPM, 0, 0,
&aif_out_mux_control),
SND_SOC_DAPM_MUX_E("Mic Type Mux", SND_SOC_NOPM, 0, 0,
&mic_type_mux_control,
mt_mic_type_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD |
SND_SOC_DAPM_WILL_PMU),
SND_SOC_DAPM_MUX_E("ADC L Mux", SND_SOC_NOPM, 0, 0,
&adc_left_mux_control,
mt_adc_l_event,
SND_SOC_DAPM_WILL_PMU),
SND_SOC_DAPM_MUX_E("ADC R Mux", SND_SOC_NOPM, 0, 0,
&adc_right_mux_control,
mt_adc_r_event,
SND_SOC_DAPM_WILL_PMU),
SND_SOC_DAPM_ADC("ADC L", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("ADC R", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_MUX_E("PGA L Mux", SND_SOC_NOPM, 0, 0,
&pga_left_mux_control,
mt_pga_left_event,
SND_SOC_DAPM_WILL_PMU),
SND_SOC_DAPM_MUX_E("PGA R Mux", SND_SOC_NOPM, 0, 0,
&pga_right_mux_control,
mt_pga_right_event,
SND_SOC_DAPM_WILL_PMU),
SND_SOC_DAPM_PGA("PGA L", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("PGA R", SND_SOC_NOPM, 0, 0, NULL, 0),
/* UL input */
SND_SOC_DAPM_INPUT("AIN0"),
SND_SOC_DAPM_INPUT("AIN1"),
SND_SOC_DAPM_INPUT("AIN2"),
};
static const struct snd_soc_dapm_route mt6358_dapm_routes[] = {
/* Capture */
{"AIF1TX", NULL, "AIF Out Mux"},
{"AIF1TX", NULL, "CLK_BUF"},
{"AIF1TX", NULL, "AUDGLB"},
{"AIF1TX", NULL, "CLKSQ Audio"},
{"AIF1TX", NULL, "AUD_CK"},
{"AIF1TX", NULL, "AUDIF_CK"},
{"AIF1TX", NULL, "AUDIO_TOP_AFE_CTL"},
{"AIF1TX", NULL, "AUDIO_TOP_ADC_CTL"},
{"AIF1TX", NULL, "AUDIO_TOP_PWR_CLK"},
{"AIF1TX", NULL, "AUDIO_TOP_PDN_RESERVED"},
{"AIF1TX", NULL, "AUDIO_TOP_I2S_DL"},
{"AIF1TX", NULL, "AFE_ON"},
{"AIF Out Mux", NULL, "Mic Type Mux"},
{"Mic Type Mux", "ACC", "ADC L"},
{"Mic Type Mux", "ACC", "ADC R"},
{"Mic Type Mux", "DCC", "ADC L"},
{"Mic Type Mux", "DCC", "ADC R"},
{"Mic Type Mux", "DCC_ECM_DIFF", "ADC L"},
{"Mic Type Mux", "DCC_ECM_DIFF", "ADC R"},
{"Mic Type Mux", "DCC_ECM_SINGLE", "ADC L"},
{"Mic Type Mux", "DCC_ECM_SINGLE", "ADC R"},
{"Mic Type Mux", "DMIC", "AIN0"},
{"Mic Type Mux", "DMIC", "AIN2"},
{"ADC L", NULL, "ADC L Mux"},
{"ADC L", NULL, "ADC Supply"},
{"ADC R", NULL, "ADC R Mux"},
{"ADC R", NULL, "ADC Supply"},
{"ADC L Mux", "Left Preamplifier", "PGA L"},
{"ADC R Mux", "Right Preamplifier", "PGA R"},
{"PGA L", NULL, "PGA L Mux"},
{"PGA R", NULL, "PGA R Mux"},
{"PGA L Mux", "AIN0", "AIN0"},
{"PGA L Mux", "AIN1", "AIN1"},
{"PGA L Mux", "AIN2", "AIN2"},
{"PGA R Mux", "AIN0", "AIN0"},
{"PGA R Mux", "AIN1", "AIN1"},
{"PGA R Mux", "AIN2", "AIN2"},
/* DL Supply */
{"DL Power Supply", NULL, "CLK_BUF"},
{"DL Power Supply", NULL, "AUDGLB"},
{"DL Power Supply", NULL, "CLKSQ Audio"},
{"DL Power Supply", NULL, "AUDNCP_CK"},
{"DL Power Supply", NULL, "ZCD13M_CK"},
{"DL Power Supply", NULL, "AUD_CK"},
{"DL Power Supply", NULL, "AUDIF_CK"},
/* DL Digital Supply */
{"DL Digital Clock", NULL, "AUDIO_TOP_AFE_CTL"},
{"DL Digital Clock", NULL, "AUDIO_TOP_DAC_CTL"},
{"DL Digital Clock", NULL, "AUDIO_TOP_PWR_CLK"},
{"DL Digital Clock", NULL, "AFE_ON"},
{"AIF_RX", NULL, "DL Digital Clock"},
/* DL Path */
{"DAC In Mux", "Normal Path", "AIF_RX"},
{"DAC In Mux", "Sgen", "SGEN DL"},
{"SGEN DL", NULL, "SGEN DL SRC"},
{"SGEN DL", NULL, "SGEN MUTE"},
{"SGEN DL", NULL, "SGEN DL Enable"},
{"SGEN DL", NULL, "DL Digital Clock"},
{"SGEN DL", NULL, "AUDIO_TOP_PDN_AFE_TESTMODEL"},
{"DACL", NULL, "DAC In Mux"},
{"DACL", NULL, "DL Power Supply"},
{"DACR", NULL, "DAC In Mux"},
{"DACR", NULL, "DL Power Supply"},
/* Lineout Path */
{"LOL Mux", "Playback", "DACL"},
{"LOL Buffer", NULL, "LOL Mux"},
{"LOL Buffer", NULL, "LO Stability Enh"},
{"LINEOUT L", NULL, "LOL Buffer"},
/* Headphone Path */
{"HPL Mux", "Audio Playback", "DACL"},
{"HPR Mux", "Audio Playback", "DACR"},
{"HPL Mux", "HP Impedance", "DACL"},
{"HPR Mux", "HP Impedance", "DACR"},
{"HPL Mux", "LoudSPK Playback", "DACL"},
{"HPR Mux", "LoudSPK Playback", "DACR"},
{"Headphone L", NULL, "HPL Mux"},
{"Headphone R", NULL, "HPR Mux"},
{"Headphone L Ext Spk Amp", NULL, "HPL Mux"},
{"Headphone R Ext Spk Amp", NULL, "HPR Mux"},
{"LINEOUT L HSSPK", NULL, "HPL Mux"},
/* Receiver Path */
{"RCV Mux", "Voice Playback", "DACL"},
{"Receiver", NULL, "RCV Mux"},
};
static int mt6358_codec_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *cmpnt = dai->component;
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
unsigned int rate = params_rate(params);
dev_info(priv->dev, "%s(), substream->stream %d, rate %d, number %d\n",
__func__,
substream->stream,
rate,
substream->number);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
priv->dl_rate = rate;
else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
priv->ul_rate = rate;
return 0;
}
static const struct snd_soc_dai_ops mt6358_codec_dai_ops = {
.hw_params = mt6358_codec_dai_hw_params,
};
#define MT6358_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\
SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE |\
SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE |\
SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |\
SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE)
static struct snd_soc_dai_driver mt6358_dai_driver[] = {
{
.name = "mt6358-snd-codec-aif1",
.playback = {
.stream_name = "AIF1 Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000 |
SNDRV_PCM_RATE_96000 |
SNDRV_PCM_RATE_192000,
.formats = MT6358_FORMATS,
},
.capture = {
.stream_name = "AIF1 Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000 |
SNDRV_PCM_RATE_16000 |
SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_48000,
.formats = MT6358_FORMATS,
},
.ops = &mt6358_codec_dai_ops,
},
};
static void mt6358_codec_init_reg(struct mt6358_priv *priv)
{
/* Disable HeadphoneL/HeadphoneR short circuit protection */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
RG_AUDHPLSCDISABLE_VAUDP15_MASK_SFT,
0x1 << RG_AUDHPLSCDISABLE_VAUDP15_SFT);
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON0,
RG_AUDHPRSCDISABLE_VAUDP15_MASK_SFT,
0x1 << RG_AUDHPRSCDISABLE_VAUDP15_SFT);
/* Disable voice short circuit protection */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON6,
RG_AUDHSSCDISABLE_VAUDP15_MASK_SFT,
0x1 << RG_AUDHSSCDISABLE_VAUDP15_SFT);
/* disable LO buffer left short circuit protection */
regmap_update_bits(priv->regmap, MT6358_AUDDEC_ANA_CON7,
RG_AUDLOLSCDISABLE_VAUDP15_MASK_SFT,
0x1 << RG_AUDLOLSCDISABLE_VAUDP15_SFT);
/* accdet s/w enable */
regmap_update_bits(priv->regmap, MT6358_ACCDET_CON13,
0xFFFF, 0x700E);
/* gpio miso driving set to 4mA */
regmap_write(priv->regmap, MT6358_DRV_CON3, 0x8888);
/* set gpio */
playback_gpio_reset(priv);
capture_gpio_reset(priv);
}
static int mt6358_codec_probe(struct snd_soc_component *cmpnt)
{
struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt);
int ret;
snd_soc_component_init_regmap(cmpnt, priv->regmap);
mt6358_codec_init_reg(priv);
priv->avdd_reg = devm_regulator_get(priv->dev, "Avdd");
if (IS_ERR(priv->avdd_reg)) {
dev_err(priv->dev, "%s() have no Avdd supply", __func__);
return PTR_ERR(priv->avdd_reg);
}
ret = regulator_enable(priv->avdd_reg);
if (ret)
return ret;
return 0;
}
static const struct snd_soc_component_driver mt6358_soc_component_driver = {
.probe = mt6358_codec_probe,
.controls = mt6358_snd_controls,
.num_controls = ARRAY_SIZE(mt6358_snd_controls),
.dapm_widgets = mt6358_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(mt6358_dapm_widgets),
.dapm_routes = mt6358_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(mt6358_dapm_routes),
};
static int mt6358_platform_driver_probe(struct platform_device *pdev)
{
struct mt6358_priv *priv;
struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
priv = devm_kzalloc(&pdev->dev,
sizeof(struct mt6358_priv),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
dev_set_drvdata(&pdev->dev, priv);
priv->dev = &pdev->dev;
priv->regmap = mt6397->regmap;
if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);
dev_info(priv->dev, "%s(), dev name %s\n",
__func__, dev_name(&pdev->dev));
return devm_snd_soc_register_component(&pdev->dev,
&mt6358_soc_component_driver,
mt6358_dai_driver,
ARRAY_SIZE(mt6358_dai_driver));
}
static const struct of_device_id mt6358_of_match[] = {
{.compatible = "mediatek,mt6358-sound",},
{}
};
MODULE_DEVICE_TABLE(of, mt6358_of_match);
static struct platform_driver mt6358_platform_driver = {
.driver = {
.name = "mt6358-sound",
.of_match_table = mt6358_of_match,
},
.probe = mt6358_platform_driver_probe,
};
module_platform_driver(mt6358_platform_driver)
/* Module information */
MODULE_DESCRIPTION("MT6358 ALSA SoC codec driver");
MODULE_AUTHOR("KaiChieh Chuang <kaichieh.chuang@mediatek.com>");
MODULE_LICENSE("GPL v2");
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