// SPDX-License-Identifier: GPL-2.0-only
/*
* ALSA SoC TWL6040 codec driver
*
* Author: Misael Lopez Cruz <x0052729@ti.com>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/mfd/twl6040.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 "twl6040.h"
enum twl6040_dai_id {
TWL6040_DAI_LEGACY = 0 ,
TWL6040_DAI_UL,
TWL6040_DAI_DL1,
TWL6040_DAI_DL2,
TWL6040_DAI_VIB,
};
#define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
#define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
#define TWL6040_OUTHS_0dB 0 x00
#define TWL6040_OUTHS_M30dB 0 x0F
#define TWL6040_OUTHF_0dB 0 x03
#define TWL6040_OUTHF_M52dB 0 x1D
#define TWL6040_CACHEREGNUM (TWL6040_REG_STATUS + 1 )
struct twl6040_jack_data {
struct snd_soc_jack *jack;
struct delayed_work work;
int report;
};
/* codec private data */
struct twl6040_data {
int plug_irq;
int codec_powered;
int pll;
int pll_power_mode;
int hs_power_mode;
int hs_power_mode_locked;
bool dl1_unmuted;
bool dl2_unmuted;
u8 dl12_cache[TWL6040_REG_HFRCTL - TWL6040_REG_HSLCTL + 1 ];
unsigned int clk_in;
unsigned int sysclk;
struct twl6040_jack_data hs_jack;
struct snd_soc_component *component;
struct mutex mutex;
};
/* set of rates for each pll: low-power and high-performance */
static const unsigned int lp_rates[] = {
8000 ,
11250 ,
16000 ,
22500 ,
32000 ,
44100 ,
48000 ,
88200 ,
96000 ,
};
static const unsigned int hp_rates[] = {
8000 ,
16000 ,
32000 ,
48000 ,
96000 ,
};
static const struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
{ .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
{ .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
};
#define to_twl6040(component) dev_get_drvdata((component)->dev->parent)
static unsigned int twl6040_read(struct snd_soc_component *component, unsigned int reg)
{
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
struct twl6040 *twl6040 = to_twl6040(component);
u8 value;
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
switch (reg) {
case TWL6040_REG_HSLCTL:
case TWL6040_REG_HSRCTL:
case TWL6040_REG_EARCTL:
case TWL6040_REG_HFLCTL:
case TWL6040_REG_HFRCTL:
value = priv->dl12_cache[reg - TWL6040_REG_HSLCTL];
break ;
default :
value = twl6040_reg_read(twl6040, reg);
break ;
}
return value;
}
static bool twl6040_can_write_to_chip(struct snd_soc_component *component,
unsigned int reg)
{
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
switch (reg) {
case TWL6040_REG_HSLCTL:
case TWL6040_REG_HSRCTL:
case TWL6040_REG_EARCTL:
/* DL1 path */
return priv->dl1_unmuted;
case TWL6040_REG_HFLCTL:
case TWL6040_REG_HFRCTL:
return priv->dl2_unmuted;
default :
return true ;
}
}
static inline void twl6040_update_dl12_cache(struct snd_soc_component *component,
u8 reg, u8 value)
{
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
switch (reg) {
case TWL6040_REG_HSLCTL:
case TWL6040_REG_HSRCTL:
case TWL6040_REG_EARCTL:
case TWL6040_REG_HFLCTL:
case TWL6040_REG_HFRCTL:
priv->dl12_cache[reg - TWL6040_REG_HSLCTL] = value;
break ;
default :
break ;
}
}
static int twl6040_write(struct snd_soc_component *component,
unsigned int reg, unsigned int value)
{
struct twl6040 *twl6040 = to_twl6040(component);
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
twl6040_update_dl12_cache(component, reg, value);
if (twl6040_can_write_to_chip(component, reg))
return twl6040_reg_write(twl6040, reg, value);
else
return 0 ;
}
static void twl6040_init_chip(struct snd_soc_component *component)
{
twl6040_read(component, TWL6040_REG_TRIM1);
twl6040_read(component, TWL6040_REG_TRIM2);
twl6040_read(component, TWL6040_REG_TRIM3);
twl6040_read(component, TWL6040_REG_HSOTRIM);
twl6040_read(component, TWL6040_REG_HFOTRIM);
/* Change chip defaults */
/* No imput selected for microphone amplifiers */
twl6040_write(component, TWL6040_REG_MICLCTL, 0 x18);
twl6040_write(component, TWL6040_REG_MICRCTL, 0 x18);
/*
* We need to lower the default gain values, so the ramp code
* can work correctly for the first playback.
* This reduces the pop noise heard at the first playback.
*/
twl6040_write(component, TWL6040_REG_HSGAIN, 0 xff);
twl6040_write(component, TWL6040_REG_EARCTL, 0 x1e);
twl6040_write(component, TWL6040_REG_HFLGAIN, 0 x1d);
twl6040_write(component, TWL6040_REG_HFRGAIN, 0 x1d);
twl6040_write(component, TWL6040_REG_LINEGAIN, 0 );
}
/* set headset dac and driver power mode */
static int headset_power_mode(struct snd_soc_component *component, int high_perf)
{
int hslctl, hsrctl;
int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
if (high_perf) {
hslctl &= ~mask;
hsrctl &= ~mask;
} else {
hslctl |= mask;
hsrctl |= mask;
}
twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
return 0 ;
}
static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
u8 hslctl, hsrctl;
/*
* Workaround for Headset DC offset caused pop noise:
* Both HS DAC need to be turned on (before the HS driver) and off at
* the same time.
*/
hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
if (SND_SOC_DAPM_EVENT_ON(event)) {
hslctl |= TWL6040_HSDACENA;
hsrctl |= TWL6040_HSDACENA;
} else {
hslctl &= ~TWL6040_HSDACENA;
hsrctl &= ~TWL6040_HSDACENA;
}
twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
msleep(1 );
return 0 ;
}
static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
int ret = 0 ;
if (SND_SOC_DAPM_EVENT_ON(event)) {
/* Earphone doesn't support low power mode */
priv->hs_power_mode_locked = 1 ;
ret = headset_power_mode(component, 1 );
} else {
priv->hs_power_mode_locked = 0 ;
ret = headset_power_mode(component, priv->hs_power_mode);
}
msleep(1 );
return ret;
}
static void twl6040_hs_jack_report(struct snd_soc_component *component,
struct snd_soc_jack *jack, int report)
{
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
int status;
mutex_lock(&priv->mutex);
/* Sync status */
status = twl6040_read(component, TWL6040_REG_STATUS);
if (status & TWL6040_PLUGCOMP)
snd_soc_jack_report(jack, report, report);
else
snd_soc_jack_report(jack, 0 , report);
mutex_unlock(&priv->mutex);
}
void twl6040_hs_jack_detect(struct snd_soc_component *component,
struct snd_soc_jack *jack, int report)
{
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
struct twl6040_jack_data *hs_jack = &priv->hs_jack;
hs_jack->jack = jack;
hs_jack->report = report;
twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
}
EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
static void twl6040_accessory_work(struct work_struct *work)
{
struct twl6040_data *priv = container_of(work,
struct twl6040_data, hs_jack.work.work);
struct snd_soc_component *component = priv->component;
struct twl6040_jack_data *hs_jack = &priv->hs_jack;
twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
}
/* audio interrupt handler */
static irqreturn_t twl6040_audio_handler(int irq, void *data)
{
struct snd_soc_component *component = data;
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
queue_delayed_work(system_power_efficient_wq,
&priv->hs_jack.work, msecs_to_jiffies(200 ));
return IRQ_HANDLED;
}
static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int val;
/* Do not allow changes while Input/FF efect is running */
val = twl6040_read(component, e->reg);
if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
return -EBUSY;
return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
}
/*
* MICATT volume control:
* from -6 to 0 dB in 6 dB steps
*/
static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600 , 600 , 0 );
/*
* MICGAIN volume control:
* from 6 to 30 dB in 6 dB steps
*/
static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600 , 600 , 0 );
/*
* AFMGAIN volume control:
* from -18 to 24 dB in 6 dB steps
*/
static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800 , 600 , 0 );
/*
* HSGAIN volume control:
* from -30 to 0 dB in 2 dB steps
*/
static DECLARE_TLV_DB_SCALE(hs_tlv, -3000 , 200 , 0 );
/*
* HFGAIN volume control:
* from -52 to 6 dB in 2 dB steps
*/
static DECLARE_TLV_DB_SCALE(hf_tlv, -5200 , 200 , 0 );
/*
* EPGAIN volume control:
* from -24 to 6 dB in 2 dB steps
*/
static DECLARE_TLV_DB_SCALE(ep_tlv, -2400 , 200 , 0 );
/* Left analog microphone selection */
static const char *twl6040_amicl_texts[] =
{"Headset Mic" , "Main Mic" , "Aux/FM Left" , "Off" };
/* Right analog microphone selection */
static const char *twl6040_amicr_texts[] =
{"Headset Mic" , "Sub Mic" , "Aux/FM Right" , "Off" };
static const struct soc_enum twl6040_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3 ,
ARRAY_SIZE(twl6040_amicl_texts), twl6040_amicl_texts),
SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3 ,
ARRAY_SIZE(twl6040_amicr_texts), twl6040_amicr_texts),
};
static const char *twl6040_hs_texts[] = {
"Off" , "HS DAC" , "Line-In amp"
};
static const struct soc_enum twl6040_hs_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5 , ARRAY_SIZE(twl6040_hs_texts),
twl6040_hs_texts),
SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5 , ARRAY_SIZE(twl6040_hs_texts),
twl6040_hs_texts),
};
static const char *twl6040_hf_texts[] = {
"Off" , "HF DAC" , "Line-In amp"
};
static const struct soc_enum twl6040_hf_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2 , ARRAY_SIZE(twl6040_hf_texts),
twl6040_hf_texts),
SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2 , ARRAY_SIZE(twl6040_hf_texts),
twl6040_hf_texts),
};
static const char *twl6040_vibrapath_texts[] = {
"Input FF" , "Audio PDM"
};
static const struct soc_enum twl6040_vibra_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1 ,
ARRAY_SIZE(twl6040_vibrapath_texts),
twl6040_vibrapath_texts),
SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1 ,
ARRAY_SIZE(twl6040_vibrapath_texts),
twl6040_vibrapath_texts),
};
static const struct snd_kcontrol_new amicl_control =
SOC_DAPM_ENUM("Route" , twl6040_enum[0 ]);
static const struct snd_kcontrol_new amicr_control =
SOC_DAPM_ENUM("Route" , twl6040_enum[1 ]);
/* Headset DAC playback switches */
static const struct snd_kcontrol_new hsl_mux_controls =
SOC_DAPM_ENUM("Route" , twl6040_hs_enum[0 ]);
static const struct snd_kcontrol_new hsr_mux_controls =
SOC_DAPM_ENUM("Route" , twl6040_hs_enum[1 ]);
/* Handsfree DAC playback switches */
static const struct snd_kcontrol_new hfl_mux_controls =
SOC_DAPM_ENUM("Route" , twl6040_hf_enum[0 ]);
static const struct snd_kcontrol_new hfr_mux_controls =
SOC_DAPM_ENUM("Route" , twl6040_hf_enum[1 ]);
static const struct snd_kcontrol_new ep_path_enable_control =
SOC_DAPM_SINGLE_VIRT("Switch" , 1 );
static const struct snd_kcontrol_new auxl_switch_control =
SOC_DAPM_SINGLE("Switch" , TWL6040_REG_HFLCTL, 6 , 1 , 0 );
static const struct snd_kcontrol_new auxr_switch_control =
SOC_DAPM_SINGLE("Switch" , TWL6040_REG_HFRCTL, 6 , 1 , 0 );
/* Vibra playback switches */
static const struct snd_kcontrol_new vibral_mux_controls =
SOC_DAPM_ENUM_EXT("Route" , twl6040_vibra_enum[0 ],
snd_soc_dapm_get_enum_double,
twl6040_soc_dapm_put_vibra_enum);
static const struct snd_kcontrol_new vibrar_mux_controls =
SOC_DAPM_ENUM_EXT("Route" , twl6040_vibra_enum[1 ],
snd_soc_dapm_get_enum_double,
twl6040_soc_dapm_put_vibra_enum);
/* Headset power mode */
static const char *twl6040_power_mode_texts[] = {
"Low-Power" , "High-Performance" ,
};
static SOC_ENUM_SINGLE_EXT_DECL(twl6040_power_mode_enum,
twl6040_power_mode_texts);
static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
ucontrol->value.enumerated.item[0 ] = priv->hs_power_mode;
return 0 ;
}
static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
int high_perf = ucontrol->value.enumerated.item[0 ];
int ret = 0 ;
if (!priv->hs_power_mode_locked)
ret = headset_power_mode(component, high_perf);
if (!ret)
priv->hs_power_mode = high_perf;
return ret;
}
static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
ucontrol->value.enumerated.item[0 ] = priv->pll_power_mode;
return 0 ;
}
static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
priv->pll_power_mode = ucontrol->value.enumerated.item[0 ];
return 0 ;
}
int twl6040_get_dl1_gain(struct snd_soc_component *component)
{
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
if (snd_soc_dapm_get_pin_status(dapm, "EP" ))
return -1 ; /* -1dB */
if (snd_soc_dapm_get_pin_status(dapm, "HSOR" ) ||
snd_soc_dapm_get_pin_status(dapm, "HSOL" )) {
u8 val = twl6040_read(component, TWL6040_REG_HSLCTL);
if (val & TWL6040_HSDACMODE)
/* HSDACL in LP mode */
return -8 ; /* -8dB */
else
/* HSDACL in HP mode */
return -1 ; /* -1dB */
}
return 0 ; /* 0dB */
}
EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
int twl6040_get_clk_id(struct snd_soc_component *component)
{
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
return priv->pll_power_mode;
}
EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
int twl6040_get_trim_value(struct snd_soc_component *component, enum twl6040_trim trim)
{
if (unlikely(trim >= TWL6040_TRIM_INVAL))
return -EINVAL;
return twl6040_read(component, TWL6040_REG_TRIM1 + trim);
}
EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
int twl6040_get_hs_step_size(struct snd_soc_component *component)
{
struct twl6040 *twl6040 = to_twl6040(component);
if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
/* For ES under ES_1.3 HS step is 2 mV */
return 2 ;
else
/* For ES_1.3 HS step is 1 mV */
return 1 ;
}
EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
static const struct snd_kcontrol_new twl6040_snd_controls[] = {
/* Capture gains */
SOC_DOUBLE_TLV("Capture Preamplifier Volume" ,
TWL6040_REG_MICGAIN, 6 , 7 , 1 , 1 , mic_preamp_tlv),
SOC_DOUBLE_TLV("Capture Volume" ,
TWL6040_REG_MICGAIN, 0 , 3 , 4 , 0 , mic_amp_tlv),
/* AFM gains */
SOC_DOUBLE_TLV("Aux FM Volume" ,
TWL6040_REG_LINEGAIN, 0 , 3 , 7 , 0 , afm_amp_tlv),
/* Playback gains */
SOC_DOUBLE_TLV("Headset Playback Volume" ,
TWL6040_REG_HSGAIN, 0 , 4 , 0 xF, 1 , hs_tlv),
SOC_DOUBLE_R_TLV("Handsfree Playback Volume" ,
TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0 , 0 x1D, 1 , hf_tlv),
SOC_SINGLE_TLV("Earphone Playback Volume" ,
TWL6040_REG_EARCTL, 1 , 0 xF, 1 , ep_tlv),
SOC_ENUM_EXT("Headset Power Mode" , twl6040_power_mode_enum,
twl6040_headset_power_get_enum,
twl6040_headset_power_put_enum),
/* Left HS PDM data routed to Right HSDAC */
SOC_SINGLE("Headset Mono to Stereo Playback Switch" ,
TWL6040_REG_HSRCTL, 7 , 1 , 0 ),
/* Left HF PDM data routed to Right HFDAC */
SOC_SINGLE("Handsfree Mono to Stereo Playback Switch" ,
TWL6040_REG_HFRCTL, 5 , 1 , 0 ),
SOC_ENUM_EXT("PLL Selection" , twl6040_power_mode_enum,
twl6040_pll_get_enum, twl6040_pll_put_enum),
};
static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
/* Inputs */
SND_SOC_DAPM_INPUT("MAINMIC" ),
SND_SOC_DAPM_INPUT("HSMIC" ),
SND_SOC_DAPM_INPUT("SUBMIC" ),
SND_SOC_DAPM_INPUT("AFML" ),
SND_SOC_DAPM_INPUT("AFMR" ),
/* Outputs */
SND_SOC_DAPM_OUTPUT("HSOL" ),
SND_SOC_DAPM_OUTPUT("HSOR" ),
SND_SOC_DAPM_OUTPUT("HFL" ),
SND_SOC_DAPM_OUTPUT("HFR" ),
SND_SOC_DAPM_OUTPUT("EP" ),
SND_SOC_DAPM_OUTPUT("AUXL" ),
SND_SOC_DAPM_OUTPUT("AUXR" ),
SND_SOC_DAPM_OUTPUT("VIBRAL" ),
SND_SOC_DAPM_OUTPUT("VIBRAR" ),
/* Analog input muxes for the capture amplifiers */
SND_SOC_DAPM_MUX("Analog Left Capture Route" ,
SND_SOC_NOPM, 0 , 0 , &amicl_control),
SND_SOC_DAPM_MUX("Analog Right Capture Route" ,
SND_SOC_NOPM, 0 , 0 , &amicr_control),
/* Analog capture PGAs */
SND_SOC_DAPM_PGA("MicAmpL" ,
TWL6040_REG_MICLCTL, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA("MicAmpR" ,
TWL6040_REG_MICRCTL, 0 , 0 , NULL, 0 ),
/* Auxiliary FM PGAs */
SND_SOC_DAPM_PGA("AFMAmpL" ,
TWL6040_REG_MICLCTL, 1 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA("AFMAmpR" ,
TWL6040_REG_MICRCTL, 1 , 0 , NULL, 0 ),
/* ADCs */
SND_SOC_DAPM_ADC("ADC Left" , NULL, TWL6040_REG_MICLCTL, 2 , 0 ),
SND_SOC_DAPM_ADC("ADC Right" , NULL, TWL6040_REG_MICRCTL, 2 , 0 ),
/* Microphone bias */
SND_SOC_DAPM_SUPPLY("Headset Mic Bias" ,
TWL6040_REG_AMICBCTL, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_SUPPLY("Main Mic Bias" ,
TWL6040_REG_AMICBCTL, 4 , 0 , NULL, 0 ),
SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias" ,
TWL6040_REG_DMICBCTL, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias" ,
TWL6040_REG_DMICBCTL, 4 , 0 , NULL, 0 ),
/* DACs */
SND_SOC_DAPM_DAC("HSDAC Left" , NULL, SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_DAC("HSDAC Right" , NULL, SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_DAC("HFDAC Left" , NULL, TWL6040_REG_HFLCTL, 0 , 0 ),
SND_SOC_DAPM_DAC("HFDAC Right" , NULL, TWL6040_REG_HFRCTL, 0 , 0 ),
/* Virtual DAC for vibra path (DL4 channel) */
SND_SOC_DAPM_DAC("VIBRA DAC" , NULL, SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_MUX("Handsfree Left Playback" ,
SND_SOC_NOPM, 0 , 0 , &hfl_mux_controls),
SND_SOC_DAPM_MUX("Handsfree Right Playback" ,
SND_SOC_NOPM, 0 , 0 , &hfr_mux_controls),
/* Analog playback Muxes */
SND_SOC_DAPM_MUX("Headset Left Playback" ,
SND_SOC_NOPM, 0 , 0 , &hsl_mux_controls),
SND_SOC_DAPM_MUX("Headset Right Playback" ,
SND_SOC_NOPM, 0 , 0 , &hsr_mux_controls),
SND_SOC_DAPM_MUX("Vibra Left Playback" , SND_SOC_NOPM, 0 , 0 ,
&vibral_mux_controls),
SND_SOC_DAPM_MUX("Vibra Right Playback" , SND_SOC_NOPM, 0 , 0 ,
&vibrar_mux_controls),
SND_SOC_DAPM_SWITCH("Earphone Playback" , SND_SOC_NOPM, 0 , 0 ,
&ep_path_enable_control),
SND_SOC_DAPM_SWITCH("AUXL Playback" , SND_SOC_NOPM, 0 , 0 ,
&auxl_switch_control),
SND_SOC_DAPM_SWITCH("AUXR Playback" , SND_SOC_NOPM, 0 , 0 ,
&auxr_switch_control),
/* Analog playback drivers */
SND_SOC_DAPM_OUT_DRV("HF Left Driver" ,
TWL6040_REG_HFLCTL, 4 , 0 , NULL, 0 ),
SND_SOC_DAPM_OUT_DRV("HF Right Driver" ,
TWL6040_REG_HFRCTL, 4 , 0 , NULL, 0 ),
SND_SOC_DAPM_OUT_DRV("HS Left Driver" ,
TWL6040_REG_HSLCTL, 2 , 0 , NULL, 0 ),
SND_SOC_DAPM_OUT_DRV("HS Right Driver" ,
TWL6040_REG_HSRCTL, 2 , 0 , NULL, 0 ),
SND_SOC_DAPM_OUT_DRV_E("Earphone Driver" ,
TWL6040_REG_EARCTL, 0 , 0 , NULL, 0 ,
twl6040_ep_drv_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_OUT_DRV("Vibra Left Driver" ,
TWL6040_REG_VIBCTLL, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_OUT_DRV("Vibra Right Driver" ,
TWL6040_REG_VIBCTLR, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_SUPPLY("Vibra Left Control" , TWL6040_REG_VIBCTLL, 2 , 0 ,
NULL, 0 ),
SND_SOC_DAPM_SUPPLY("Vibra Right Control" , TWL6040_REG_VIBCTLR, 2 , 0 ,
NULL, 0 ),
SND_SOC_DAPM_SUPPLY_S("HSDAC Power" , 1 , SND_SOC_NOPM, 0 , 0 ,
twl6040_hs_dac_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
/* Analog playback PGAs */
SND_SOC_DAPM_PGA("HF Left PGA" ,
TWL6040_REG_HFLCTL, 1 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA("HF Right PGA" ,
TWL6040_REG_HFRCTL, 1 , 0 , NULL, 0 ),
};
static const struct snd_soc_dapm_route intercon[] = {
/* Stream -> DAC mapping */
{"HSDAC Left" , NULL, "Legacy Playback" },
{"HSDAC Left" , NULL, "Headset Playback" },
{"HSDAC Right" , NULL, "Legacy Playback" },
{"HSDAC Right" , NULL, "Headset Playback" },
{"HFDAC Left" , NULL, "Legacy Playback" },
{"HFDAC Left" , NULL, "Handsfree Playback" },
{"HFDAC Right" , NULL, "Legacy Playback" },
{"HFDAC Right" , NULL, "Handsfree Playback" },
{"VIBRA DAC" , NULL, "Legacy Playback" },
{"VIBRA DAC" , NULL, "Vibra Playback" },
/* ADC -> Stream mapping */
{"Legacy Capture" , NULL, "ADC Left" },
{"Capture" , NULL, "ADC Left" },
{"Legacy Capture" , NULL, "ADC Right" },
{"Capture" , NULL, "ADC Right" },
/* Capture path */
{"Analog Left Capture Route" , "Headset Mic" , "HSMIC" },
{"Analog Left Capture Route" , "Main Mic" , "MAINMIC" },
{"Analog Left Capture Route" , "Aux/FM Left" , "AFML" },
{"Analog Right Capture Route" , "Headset Mic" , "HSMIC" },
{"Analog Right Capture Route" , "Sub Mic" , "SUBMIC" },
{"Analog Right Capture Route" , "Aux/FM Right" , "AFMR" },
{"MicAmpL" , NULL, "Analog Left Capture Route" },
{"MicAmpR" , NULL, "Analog Right Capture Route" },
{"ADC Left" , NULL, "MicAmpL" },
{"ADC Right" , NULL, "MicAmpR" },
/* AFM path */
{"AFMAmpL" , NULL, "AFML" },
{"AFMAmpR" , NULL, "AFMR" },
{"HSDAC Left" , NULL, "HSDAC Power" },
{"HSDAC Right" , NULL, "HSDAC Power" },
{"Headset Left Playback" , "HS DAC" , "HSDAC Left" },
{"Headset Left Playback" , "Line-In amp" , "AFMAmpL" },
{"Headset Right Playback" , "HS DAC" , "HSDAC Right" },
{"Headset Right Playback" , "Line-In amp" , "AFMAmpR" },
{"HS Left Driver" , NULL, "Headset Left Playback" },
{"HS Right Driver" , NULL, "Headset Right Playback" },
{"HSOL" , NULL, "HS Left Driver" },
{"HSOR" , NULL, "HS Right Driver" },
/* Earphone playback path */
{"Earphone Playback" , "Switch" , "HSDAC Left" },
{"Earphone Driver" , NULL, "Earphone Playback" },
{"EP" , NULL, "Earphone Driver" },
{"Handsfree Left Playback" , "HF DAC" , "HFDAC Left" },
{"Handsfree Left Playback" , "Line-In amp" , "AFMAmpL" },
{"Handsfree Right Playback" , "HF DAC" , "HFDAC Right" },
{"Handsfree Right Playback" , "Line-In amp" , "AFMAmpR" },
{"HF Left PGA" , NULL, "Handsfree Left Playback" },
{"HF Right PGA" , NULL, "Handsfree Right Playback" },
{"HF Left Driver" , NULL, "HF Left PGA" },
{"HF Right Driver" , NULL, "HF Right PGA" },
{"HFL" , NULL, "HF Left Driver" },
{"HFR" , NULL, "HF Right Driver" },
{"AUXL Playback" , "Switch" , "HF Left PGA" },
{"AUXR Playback" , "Switch" , "HF Right PGA" },
{"AUXL" , NULL, "AUXL Playback" },
{"AUXR" , NULL, "AUXR Playback" },
/* Vibrator paths */
{"Vibra Left Playback" , "Audio PDM" , "VIBRA DAC" },
{"Vibra Right Playback" , "Audio PDM" , "VIBRA DAC" },
{"Vibra Left Driver" , NULL, "Vibra Left Playback" },
{"Vibra Right Driver" , NULL, "Vibra Right Playback" },
{"Vibra Left Driver" , NULL, "Vibra Left Control" },
{"Vibra Right Driver" , NULL, "Vibra Right Control" },
{"VIBRAL" , NULL, "Vibra Left Driver" },
{"VIBRAR" , NULL, "Vibra Right Driver" },
};
static int twl6040_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
struct twl6040 *twl6040 = to_twl6040(component);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
int ret = 0 ;
switch (level) {
case SND_SOC_BIAS_ON:
break ;
case SND_SOC_BIAS_PREPARE:
break ;
case SND_SOC_BIAS_STANDBY:
if (priv->codec_powered) {
/* Select low power PLL in standby */
ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
32768 , 19200000 );
break ;
}
ret = twl6040_power(twl6040, 1 );
if (ret)
break ;
priv->codec_powered = 1 ;
/* Set external boost GPO */
twl6040_write(component, TWL6040_REG_GPOCTL, 0 x02);
break ;
case SND_SOC_BIAS_OFF:
if (!priv->codec_powered)
break ;
twl6040_power(twl6040, 0 );
priv->codec_powered = 0 ;
break ;
}
return ret;
}
static int twl6040_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
snd_pcm_hw_constraint_list(substream->runtime, 0 ,
SNDRV_PCM_HW_PARAM_RATE,
&sysclk_constraints[priv->pll_power_mode]);
return 0 ;
}
static int twl6040_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
int rate;
rate = params_rate(params);
switch (rate) {
case 11250 :
case 22500 :
case 44100 :
case 88200 :
/* These rates are not supported when HPPLL is in use */
if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
dev_err(component->dev, "HPPLL does not support rate %d\n" ,
rate);
return -EINVAL;
}
priv->sysclk = 17640000 ;
break ;
case 8000 :
case 16000 :
case 32000 :
case 48000 :
case 96000 :
priv->sysclk = 19200000 ;
break ;
default :
dev_err(component->dev, "unsupported rate %d\n" , rate);
return -EINVAL;
}
return 0 ;
}
static int twl6040_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct twl6040 *twl6040 = to_twl6040(component);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
int ret;
if (!priv->sysclk) {
dev_err(component->dev,
"no mclk configured, call set_sysclk() on init\n" );
return -EINVAL;
}
ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
if (ret) {
dev_err(component->dev, "Can not set PLL (%d)\n" , ret);
return -EPERM;
}
return 0 ;
}
static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_component *component = codec_dai->component;
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
switch (clk_id) {
case TWL6040_SYSCLK_SEL_LPPLL:
case TWL6040_SYSCLK_SEL_HPPLL:
priv->pll = clk_id;
priv->clk_in = freq;
break ;
default :
dev_err(component->dev, "unknown clk_id %d\n" , clk_id);
return -EINVAL;
}
return 0 ;
}
static void twl6040_mute_path(struct snd_soc_component *component, enum twl6040_dai_id id,
int mute)
{
struct twl6040 *twl6040 = to_twl6040(component);
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
int hslctl, hsrctl, earctl;
int hflctl, hfrctl;
switch (id) {
case TWL6040_DAI_DL1:
hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
earctl = twl6040_read(component, TWL6040_REG_EARCTL);
if (mute) {
/* Power down drivers and DACs */
earctl &= ~0 x01;
hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
}
twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
priv->dl1_unmuted = !mute;
break ;
case TWL6040_DAI_DL2:
hflctl = twl6040_read(component, TWL6040_REG_HFLCTL);
hfrctl = twl6040_read(component, TWL6040_REG_HFRCTL);
if (mute) {
/* Power down drivers and DACs */
hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
TWL6040_HFDRVENA | TWL6040_HFSWENA);
hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
TWL6040_HFDRVENA | TWL6040_HFSWENA);
}
twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
priv->dl2_unmuted = !mute;
break ;
default :
break ;
}
}
static int twl6040_mute_stream(struct snd_soc_dai *dai, int mute, int direction)
{
switch (dai->id) {
case TWL6040_DAI_LEGACY:
twl6040_mute_path(dai->component, TWL6040_DAI_DL1, mute);
twl6040_mute_path(dai->component, TWL6040_DAI_DL2, mute);
break ;
case TWL6040_DAI_DL1:
case TWL6040_DAI_DL2:
twl6040_mute_path(dai->component, dai->id, mute);
break ;
default :
break ;
}
return 0 ;
}
static const struct snd_soc_dai_ops twl6040_dai_ops = {
.startup = twl6040_startup,
.hw_params = twl6040_hw_params,
.prepare = twl6040_prepare,
.set_sysclk = twl6040_set_dai_sysclk,
.mute_stream = twl6040_mute_stream,
.no_capture_mute = 1 ,
};
static struct snd_soc_dai_driver twl6040_dai[] = {
{
.name = "twl6040-legacy" ,
.id = TWL6040_DAI_LEGACY,
.playback = {
.stream_name = "Legacy Playback" ,
.channels_min = 1 ,
.channels_max = 5 ,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.capture = {
.stream_name = "Legacy Capture" ,
.channels_min = 1 ,
.channels_max = 2 ,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-ul" ,
.id = TWL6040_DAI_UL,
.capture = {
.stream_name = "Capture" ,
.channels_min = 1 ,
.channels_max = 2 ,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-dl1" ,
.id = TWL6040_DAI_DL1,
.playback = {
.stream_name = "Headset Playback" ,
.channels_min = 1 ,
.channels_max = 2 ,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-dl2" ,
.id = TWL6040_DAI_DL2,
.playback = {
.stream_name = "Handsfree Playback" ,
.channels_min = 1 ,
.channels_max = 2 ,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-vib" ,
.id = TWL6040_DAI_VIB,
.playback = {
.stream_name = "Vibra Playback" ,
.channels_min = 1 ,
.channels_max = 1 ,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
};
static int twl6040_probe(struct snd_soc_component *component)
{
struct twl6040_data *priv;
struct platform_device *pdev = to_platform_device(component->dev);
int ret = 0 ;
priv = devm_kzalloc(component->dev, sizeof (*priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
snd_soc_component_set_drvdata(component, priv);
priv->component = component;
priv->plug_irq = platform_get_irq(pdev, 0 );
if (priv->plug_irq < 0 )
return priv->plug_irq;
INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
mutex_init(&priv->mutex);
ret = request_threaded_irq(priv->plug_irq, NULL,
twl6040_audio_handler,
IRQF_NO_SUSPEND | IRQF_ONESHOT,
"twl6040_irq_plug" , component);
if (ret) {
dev_err(component->dev, "PLUG IRQ request failed: %d\n" , ret);
return ret;
}
snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
twl6040_init_chip(component);
return 0 ;
}
static void twl6040_remove(struct snd_soc_component *component)
{
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
free_irq(priv->plug_irq, component);
}
static const struct snd_soc_component_driver soc_component_dev_twl6040 = {
.probe = twl6040_probe,
.remove = twl6040_remove,
.read = twl6040_read,
.write = twl6040_write,
.set_bias_level = twl6040_set_bias_level,
.controls = twl6040_snd_controls,
.num_controls = ARRAY_SIZE(twl6040_snd_controls),
.dapm_widgets = twl6040_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
.dapm_routes = intercon,
.num_dapm_routes = ARRAY_SIZE(intercon),
.suspend_bias_off = 1 ,
.idle_bias_on = 1 ,
.endianness = 1 ,
};
static int twl6040_codec_probe(struct platform_device *pdev)
{
return devm_snd_soc_register_component(&pdev->dev,
&soc_component_dev_twl6040,
twl6040_dai, ARRAY_SIZE(twl6040_dai));
}
static struct platform_driver twl6040_codec_driver = {
.driver = {
.name = "twl6040-codec" ,
},
.probe = twl6040_codec_probe,
};
module_platform_driver(twl6040_codec_driver);
MODULE_DESCRIPTION("ASoC TWL6040 codec driver" );
MODULE_AUTHOR("Misael Lopez Cruz" );
MODULE_LICENSE("GPL" );
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(vorverarbeitet am 2026-06-07)
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