// SPDX-License-Identifier: GPL-2.0-only /* * ALSA SoC TWL4030 codec driver * * Author : Steve Sakoman , < steve @ sakoman . com > #include <linux/delay.h>#include <linux/gpio/consumer.h>#include <linux/i2c.h>#include <linux/init.h>#include <linux/mfd/twl.h>#include <linux/mfd/twl4030-audio.h>#include <linux/module.h>#include <linux/moduleparam.h>#include <linux/of.h>#include <linux/pm.h>#include <linux/platform_device.h>#include <linux/slab.h>#include <sound/core.h>#include <sound/initval.h>#include <sound/pcm.h>#include <sound/pcm_params.h>#include <sound/soc.h>#include <sound/tlv.h>/* TWL4030 PMBR1 Register */ #define TWL4030_PMBR1_REG 0 x0D/* TWL4030 PMBR1 Register GPIO6 mux bits */ #define TWL4030_GPIO6_PWM0_MUTE(value) ((value & 0 x03) << 2 )#define TWL4030_CACHEREGNUM (TWL4030_REG_MISC_SET_2 + 1 )struct twl4030_board_params {unsigned int digimic_delay; /* in ms */ unsigned int ramp_delay_value;unsigned int offset_cncl_path;unsigned int hs_extmute:1 ;struct gpio_desc *hs_extmute_gpio;/* codec private data */ struct twl4030_priv {unsigned int codec_powered;/* reference counts of AIF/APLL users */ unsigned int apll_enabled;struct snd_pcm_substream *master_substream;struct snd_pcm_substream *slave_substream;unsigned int configured;unsigned int rate;unsigned int sample_bits;unsigned int channels;unsigned int sysclk;/* Output (with associated amp) states */ 1 ];struct twl4030_board_params *board_params;static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030)int i;for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) {static unsigned int twl4030_read(struct snd_soc_component *component, unsigned int reg)struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);0 ;if (reg >= TWL4030_CACHEREGNUM)return -EIO;switch (reg) {case TWL4030_REG_EAR_CTL:case TWL4030_REG_PREDL_CTL:case TWL4030_REG_PREDR_CTL:case TWL4030_REG_PRECKL_CTL:case TWL4030_REG_PRECKR_CTL:case TWL4030_REG_HS_GAIN_SET:break ;default :break ;return value;static bool twl4030_can_write_to_chip(struct twl4030_priv *twl4030,unsigned int reg)bool write_to_reg = false ;/* Decide if the given register can be written */ switch (reg) {case TWL4030_REG_EAR_CTL:if (twl4030->earpiece_enabled)true ;break ;case TWL4030_REG_PREDL_CTL:if (twl4030->predrivel_enabled)true ;break ;case TWL4030_REG_PREDR_CTL:if (twl4030->predriver_enabled)true ;break ;case TWL4030_REG_PRECKL_CTL:if (twl4030->carkitl_enabled)true ;break ;case TWL4030_REG_PRECKR_CTL:if (twl4030->carkitr_enabled)true ;break ;case TWL4030_REG_HS_GAIN_SET:if (twl4030->hsl_enabled || twl4030->hsr_enabled)true ;break ;default :/* All other register can be written */ true ;break ;return write_to_reg;static int twl4030_write(struct snd_soc_component *component, unsigned int reg,unsigned int value)struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);/* Update the ctl cache */ switch (reg) {case TWL4030_REG_EAR_CTL:case TWL4030_REG_PREDL_CTL:case TWL4030_REG_PREDR_CTL:case TWL4030_REG_PRECKL_CTL:case TWL4030_REG_PRECKR_CTL:case TWL4030_REG_HS_GAIN_SET:break ;default :break ;if (twl4030_can_write_to_chip(twl4030, reg))return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);return 0 ;static inline void twl4030_wait_ms(int time)if (time < 60 ) {1000 ;500 );else {static void twl4030_codec_enable(struct snd_soc_component *component, int enable)struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);int mode;if (enable == twl4030->codec_powered)return ;if (enable)else if (mode >= 0 )/* REVISIT: this delay is present in TI sample drivers */ /* but there seems to be no TRM requirement for it */ 10 );static void struct twl4030_board_params *board_params,struct device_node *node)int value;"ti,digimic_delay" , &board_params->digimic_delay);"ti,ramp_delay_value" , &board_params->ramp_delay_value);"ti,offset_cncl_path" , &board_params->offset_cncl_path);if (!of_property_read_u32(node, "ti,hs_extmute" , &value))if (of_property_present(node, "ti,hs_extmute_gpio" ))1 ;static struct twl4030_board_params*struct snd_soc_component *component)struct twl4030_board_params *board_params = NULL;struct device_node *twl4030_codec_node = NULL;"codec" );if (twl4030_codec_node) {sizeof (struct twl4030_board_params),if (!board_params) {return NULL;return board_params;static int twl4030_init_chip(struct snd_soc_component *component)struct twl4030_board_params *board_params;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);int i = 0 ;if (board_params && board_params->hs_extmute) {"ti,hs_extmute" ,if (IS_ERR(board_params->hs_extmute_gpio))return dev_err_probe(component->dev, PTR_ERR(board_params->hs_extmute_gpio),"Failed to get hs_extmute GPIO\n" );if (board_params->hs_extmute_gpio) {"hs_extmute" );else {"use TWL4030 GPIO6\n" );/* Set TWL4030 GPIO6 as EXTMUTE signal */ 0 x03);0 x02);/* Initialize the local ctl register cache */ /* anti-pop when changing analog gain */ /* REG_ARXR2_APGA_CTL reset according to the TRM: 0dB, DA_EN */ 0 x32);/* Machine dependent setup */ if (!board_params)return 0 ;2 );/* initiate offset cancellation */ 1 );/* * Wait for offset cancellation to complete . * Since this takes a while , do not slam the i2c . * Start polling the status after ~ 20 ms . 20 );do {1000 , 2000 );true );false );while ((i++ < 100 ) &&0 );return 0 ;static void twl4030_apll_enable(struct snd_soc_component *component, int enable)struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);if (enable) {if (twl4030->apll_enabled == 1 )else {if (!twl4030->apll_enabled)/* Earpiece */ static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {"Voice" , TWL4030_REG_EAR_CTL, 0 , 1 , 0 ),"AudioL1" , TWL4030_REG_EAR_CTL, 1 , 1 , 0 ),"AudioL2" , TWL4030_REG_EAR_CTL, 2 , 1 , 0 ),"AudioR1" , TWL4030_REG_EAR_CTL, 3 , 1 , 0 ),/* PreDrive Left */ static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {"Voice" , TWL4030_REG_PREDL_CTL, 0 , 1 , 0 ),"AudioL1" , TWL4030_REG_PREDL_CTL, 1 , 1 , 0 ),"AudioL2" , TWL4030_REG_PREDL_CTL, 2 , 1 , 0 ),"AudioR2" , TWL4030_REG_PREDL_CTL, 3 , 1 , 0 ),/* PreDrive Right */ static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {"Voice" , TWL4030_REG_PREDR_CTL, 0 , 1 , 0 ),"AudioR1" , TWL4030_REG_PREDR_CTL, 1 , 1 , 0 ),"AudioR2" , TWL4030_REG_PREDR_CTL, 2 , 1 , 0 ),"AudioL2" , TWL4030_REG_PREDR_CTL, 3 , 1 , 0 ),/* Headset Left */ static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {"Voice" , TWL4030_REG_HS_SEL, 0 , 1 , 0 ),"AudioL1" , TWL4030_REG_HS_SEL, 1 , 1 , 0 ),"AudioL2" , TWL4030_REG_HS_SEL, 2 , 1 , 0 ),/* Headset Right */ static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {"Voice" , TWL4030_REG_HS_SEL, 3 , 1 , 0 ),"AudioR1" , TWL4030_REG_HS_SEL, 4 , 1 , 0 ),"AudioR2" , TWL4030_REG_HS_SEL, 5 , 1 , 0 ),/* Carkit Left */ static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {"Voice" , TWL4030_REG_PRECKL_CTL, 0 , 1 , 0 ),"AudioL1" , TWL4030_REG_PRECKL_CTL, 1 , 1 , 0 ),"AudioL2" , TWL4030_REG_PRECKL_CTL, 2 , 1 , 0 ),/* Carkit Right */ static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {"Voice" , TWL4030_REG_PRECKR_CTL, 0 , 1 , 0 ),"AudioR1" , TWL4030_REG_PRECKR_CTL, 1 , 1 , 0 ),"AudioR2" , TWL4030_REG_PRECKR_CTL, 2 , 1 , 0 ),/* Handsfree Left */ static const char *twl4030_handsfreel_texts[] ="Voice" , "AudioL1" , "AudioL2" , "AudioR2" };static SOC_ENUM_SINGLE_DECL(twl4030_handsfreel_enum,0 ,static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control ="Route" , twl4030_handsfreel_enum);/* Handsfree Left virtual mute */ static const struct snd_kcontrol_new twl4030_dapm_handsfreelmute_control ="Switch" , 1 );/* Handsfree Right */ static const char *twl4030_handsfreer_texts[] ="Voice" , "AudioR1" , "AudioR2" , "AudioL2" };static SOC_ENUM_SINGLE_DECL(twl4030_handsfreer_enum,0 ,static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control ="Route" , twl4030_handsfreer_enum);/* Handsfree Right virtual mute */ static const struct snd_kcontrol_new twl4030_dapm_handsfreermute_control ="Switch" , 1 );/* Vibra */ /* Vibra audio path selection */ static const char *twl4030_vibra_texts[] ="AudioL1" , "AudioR1" , "AudioL2" , "AudioR2" };static SOC_ENUM_SINGLE_DECL(twl4030_vibra_enum,2 ,static const struct snd_kcontrol_new twl4030_dapm_vibra_control ="Route" , twl4030_vibra_enum);/* Vibra path selection: local vibrator (PWM) or audio driven */ static const char *twl4030_vibrapath_texts[] ="Local vibrator" , "Audio" };static SOC_ENUM_SINGLE_DECL(twl4030_vibrapath_enum,4 ,static const struct snd_kcontrol_new twl4030_dapm_vibrapath_control ="Route" , twl4030_vibrapath_enum);/* Left analog microphone selection */ static const struct snd_kcontrol_new twl4030_dapm_analoglmic_controls[] = {"Main Mic Capture Switch" ,0 , 1 , 0 ),"Headset Mic Capture Switch" ,1 , 1 , 0 ),"AUXL Capture Switch" ,2 , 1 , 0 ),"Carkit Mic Capture Switch" ,3 , 1 , 0 ),/* Right analog microphone selection */ static const struct snd_kcontrol_new twl4030_dapm_analogrmic_controls[] = {"Sub Mic Capture Switch" , TWL4030_REG_ANAMICR, 0 , 1 , 0 ),"AUXR Capture Switch" , TWL4030_REG_ANAMICR, 2 , 1 , 0 ),/* TX1 L/R Analog/Digital microphone selection */ static const char *twl4030_micpathtx1_texts[] ="Analog" , "Digimic0" };static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx1_enum,0 ,static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control ="Route" , twl4030_micpathtx1_enum);/* TX2 L/R Analog/Digital microphone selection */ static const char *twl4030_micpathtx2_texts[] ="Analog" , "Digimic1" };static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx2_enum,2 ,static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control ="Route" , twl4030_micpathtx2_enum);/* Analog bypass for AudioR1 */ static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control ="Switch" , TWL4030_REG_ARXR1_APGA_CTL, 2 , 1 , 0 );/* Analog bypass for AudioL1 */ static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control ="Switch" , TWL4030_REG_ARXL1_APGA_CTL, 2 , 1 , 0 );/* Analog bypass for AudioR2 */ static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control ="Switch" , TWL4030_REG_ARXR2_APGA_CTL, 2 , 1 , 0 );/* Analog bypass for AudioL2 */ static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control ="Switch" , TWL4030_REG_ARXL2_APGA_CTL, 2 , 1 , 0 );/* Analog bypass for Voice */ static const struct snd_kcontrol_new twl4030_dapm_abypassv_control ="Switch" , TWL4030_REG_VDL_APGA_CTL, 2 , 1 , 0 );/* Digital bypass gain, mute instead of -30dB */ static const DECLARE_TLV_DB_RANGE(twl4030_dapm_dbypass_tlv,0 , 1 , TLV_DB_SCALE_ITEM(-3000 , 600 , 1 ),2 , 3 , TLV_DB_SCALE_ITEM(-2400 , 0 , 0 ),4 , 7 , TLV_DB_SCALE_ITEM(-1800 , 600 , 0 )/* Digital bypass left (TX1L -> RX2L) */ static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control ="Volume" ,3 , 7 , 0 ,/* Digital bypass right (TX1R -> RX2R) */ static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control ="Volume" ,0 , 7 , 0 ,/* * Voice Sidetone GAIN volume control : * from - 51 to - 10 dB in 1 dB steps ( mute instead of - 51 dB ) static DECLARE_TLV_DB_SCALE(twl4030_dapm_dbypassv_tlv, -5100 , 100 , 1 );/* Digital bypass voice: sidetone (VUL -> VDL)*/ static const struct snd_kcontrol_new twl4030_dapm_dbypassv_control ="Volume" ,0 , 0 x29, 0 ,/* * Output PGA builder : * Handle the muting and unmuting of the given output ( turning off the * amplifier associated with the output pin ) * On mute bypass the reg_cache and write 0 to the register * On unmute : restore the register content from the reg_cache * Outputs handled in this way : Earpiece , PreDrivL / R , CarkitL / R #define TWL4030_OUTPUT_PGA(pin_name, reg) \static int pin_name## pga_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 twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component); \switch (event) { \case SND_SOC_DAPM_POST_PMU: \## _enabled = 1 ; \break ; \case SND_SOC_DAPM_POST_PMD: \## _enabled = 0 ; \0 , reg); \break ; \return 0 ; \static void handsfree_ramp(struct snd_soc_component *component, int reg, int ramp)unsigned char hs_ctl;if (ramp) {/* HF ramp-up */ 10 );40 );else {/* HF ramp-down */ 40 );static int handsfreelpga_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);switch (event) {case SND_SOC_DAPM_POST_PMU:1 );break ;case SND_SOC_DAPM_POST_PMD:0 );break ;return 0 ;static int handsfreerpga_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);switch (event) {case SND_SOC_DAPM_POST_PMU:1 );break ;case SND_SOC_DAPM_POST_PMD:0 );break ;return 0 ;static int vibramux_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);0 xff);return 0 ;static int apll_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);switch (event) {case SND_SOC_DAPM_PRE_PMU:1 );break ;case SND_SOC_DAPM_POST_PMD:0 );break ;return 0 ;static int aif_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);switch (event) {case SND_SOC_DAPM_PRE_PMU:/* Enable AIF */ /* enable the PLL before we use it to clock the DAI */ 1 );break ;case SND_SOC_DAPM_POST_PMD:/* disable the DAI before we stop it's source PLL */ 0 );break ;return 0 ;static void headset_ramp(struct snd_soc_component *component, int ramp)unsigned char hs_gain, hs_pop;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);struct twl4030_board_params *board_params = twl4030->board_params;/* Base values for ramp delay calculation: 2^19 - 2^26 */ static const unsigned int ramp_base[] = {524288 , 1048576 , 2097152 , 4194304 ,8388608 , 16777216 , 33554432 , 67108864 unsigned int delay;2 ] /1 ;/* Enable external mute control, this dramatically reduces if (board_params && board_params->hs_extmute) {if (board_params->hs_extmute_gpio) {1 );else {if (ramp) {/* Headset ramp-up according to the TRM */ /* Actually write to the register */ /* Wait ramp delay time + 1, so the VMID can settle */ else {/* Headset ramp-down _not_ according to /* Wait ramp delay time + 1, so the VMID can settle */ /* Bypass the reg_cache to mute the headset */ 0 x0f),/* Disable external mute */ if (board_params && board_params->hs_extmute) {if (board_params->hs_extmute_gpio) {0 );else {static int headsetlpga_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 twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);switch (event) {case SND_SOC_DAPM_POST_PMU:/* Do the ramp-up only once */ if (!twl4030->hsr_enabled)1 );1 ;break ;case SND_SOC_DAPM_POST_PMD:/* Do the ramp-down only if both headsetL/R is disabled */ if (!twl4030->hsr_enabled)0 );0 ;break ;return 0 ;static int headsetrpga_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 twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);switch (event) {case SND_SOC_DAPM_POST_PMU:/* Do the ramp-up only once */ if (!twl4030->hsl_enabled)1 );1 ;break ;case SND_SOC_DAPM_POST_PMD:/* Do the ramp-down only if both headsetL/R is disabled */ if (!twl4030->hsl_enabled)0 );0 ;break ;return 0 ;static int digimic_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 twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);struct twl4030_board_params *board_params = twl4030->board_params;if (board_params && board_params->digimic_delay)return 0 ;/* * Some of the gain controls in TWL ( mostly those which are associated with * the outputs ) are implemented in an interesting way : * 0 x0 : Power down ( mute ) * 0 x1 : 6 dB * 0 x2 : 0 dB * 0 x3 : - 6 dB * Inverting not going to help with these . * Custom volsw and volsw_2r get / put functions to handle these gain bits . static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,struct snd_ctl_elem_value *ucontrol)struct soc_mixer_control *mc =struct soc_mixer_control *)kcontrol->private_value;struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);unsigned int reg = mc->reg;unsigned int shift = mc->shift;unsigned int rshift = mc->rshift;int max = mc->max;int mask = (1 << fls(max)) - 1 ;0 ] =if (ucontrol->value.integer.value[0 ])0 ] =1 - ucontrol->value.integer.value[0 ];if (shift != rshift) {1 ] =if (ucontrol->value.integer.value[1 ])1 ] =1 - ucontrol->value.integer.value[1 ];return 0 ;static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,struct snd_ctl_elem_value *ucontrol)struct soc_mixer_control *mc =struct soc_mixer_control *)kcontrol->private_value;struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);unsigned int reg = mc->reg;unsigned int shift = mc->shift;unsigned int rshift = mc->rshift;int max = mc->max;int mask = (1 << fls(max)) - 1 ;unsigned short val, val2, val_mask;0 ] & mask);if (val)1 - val;if (shift != rshift) {1 ] & mask);if (val2)1 - val2;return snd_soc_component_update_bits(component, reg, val_mask, val);static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,struct snd_ctl_elem_value *ucontrol)struct soc_mixer_control *mc =struct soc_mixer_control *)kcontrol->private_value;struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);unsigned int reg = mc->reg;unsigned int reg2 = mc->rreg;unsigned int shift = mc->shift;int max = mc->max;int mask = (1 <<fls(max))-1 ;0 ] =1 ] =if (ucontrol->value.integer.value[0 ])0 ] =1 - ucontrol->value.integer.value[0 ];if (ucontrol->value.integer.value[1 ])1 ] =1 - ucontrol->value.integer.value[1 ];return 0 ;static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,struct snd_ctl_elem_value *ucontrol)struct soc_mixer_control *mc =struct soc_mixer_control *)kcontrol->private_value;struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);unsigned int reg = mc->reg;unsigned int reg2 = mc->rreg;unsigned int shift = mc->shift;int max = mc->max;int mask = (1 << fls(max)) - 1 ;int err;unsigned short val, val2, val_mask;0 ] & mask);1 ] & mask);if (val)1 - val;if (val2)1 - val2;if (err < 0 )return err;return err;/* Codec operation modes */ static const char *twl4030_op_modes_texts[] = {"Option 2 (voice/audio)" , "Option 1 (audio)" static SOC_ENUM_SINGLE_DECL(twl4030_op_modes_enum,0 ,static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,struct snd_ctl_elem_value *ucontrol)struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);if (twl4030->configured) {"operation mode cannot be changed on-the-fly\n" );return -EBUSY;return snd_soc_put_enum_double(kcontrol, ucontrol);/* * FGAIN volume control : * from - 62 to 0 dB in 1 dB steps ( mute instead of - 63 dB ) static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300 , 100 , 1 );/* * CGAIN volume control : * 0 dB to 12 dB in 6 dB steps * value 2 and 3 means 12 dB static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0 , 600 , 0 );/* * Voice Downlink GAIN volume control : * from - 37 to 12 dB in 1 dB steps ( mute instead of - 37 dB ) static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700 , 100 , 1 );/* * Analog playback gain * - 24 dB to 12 dB in 2 dB steps static DECLARE_TLV_DB_SCALE(analog_tlv, -2400 , 200 , 0 );/* * Gain controls tied to outputs * - 6 dB to 6 dB in 6 dB steps ( mute instead of - 12 ) static DECLARE_TLV_DB_SCALE(output_tvl, -1200 , 600 , 1 );/* * Gain control for earpiece amplifier * 0 dB to 12 dB in 6 dB steps ( mute instead of - 6 ) static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600 , 600 , 1 );/* * Capture gain after the ADCs * from 0 dB to 31 dB in 1 dB steps static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0 , 100 , 0 );/* * Gain control for input amplifiers * 0 dB to 30 dB in 6 dB steps static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0 , 600 , 0 );/* AVADC clock priority */ static const char *twl4030_avadc_clk_priority_texts[] = {"Voice high priority" , "HiFi high priority" static SOC_ENUM_SINGLE_DECL(twl4030_avadc_clk_priority_enum,2 ,static const char *twl4030_rampdelay_texts[] = {"27/20/14 ms" , "55/40/27 ms" , "109/81/55 ms" , "218/161/109 ms" ,"437/323/218 ms" , "874/645/437 ms" , "1748/1291/874 ms" ,"3495/2581/1748 ms" static SOC_ENUM_SINGLE_DECL(twl4030_rampdelay_enum,2 ,/* Vibra H-bridge direction mode */ static const char *twl4030_vibradirmode_texts[] = {"Vibra H-bridge direction" , "Audio data MSB" ,static SOC_ENUM_SINGLE_DECL(twl4030_vibradirmode_enum,5 ,/* Vibra H-bridge direction */ static const char *twl4030_vibradir_texts[] = {"Positive polarity" , "Negative polarity" ,static SOC_ENUM_SINGLE_DECL(twl4030_vibradir_enum,1 ,/* Digimic Left and right swapping */ static const char *twl4030_digimicswap_texts[] = {"Not swapped" , "Swapped" ,static SOC_ENUM_SINGLE_DECL(twl4030_digimicswap_enum,0 ,static const struct snd_kcontrol_new twl4030_snd_controls[] = {/* Codec operation mode control */ "Codec Operation Mode" , twl4030_op_modes_enum,/* Common playback gain controls */ "DAC1 Digital Fine Playback Volume" ,0 , 0 x3f, 0 , digital_fine_tlv),"DAC2 Digital Fine Playback Volume" ,0 , 0 x3f, 0 , digital_fine_tlv),"DAC1 Digital Coarse Playback Volume" ,6 , 0 x2, 0 , digital_coarse_tlv),"DAC2 Digital Coarse Playback Volume" ,6 , 0 x2, 0 , digital_coarse_tlv),"DAC1 Analog Playback Volume" ,3 , 0 x12, 1 , analog_tlv),"DAC2 Analog Playback Volume" ,3 , 0 x12, 1 , analog_tlv),"DAC1 Analog Playback Switch" ,1 , 1 , 0 ),"DAC2 Analog Playback Switch" ,1 , 1 , 0 ),/* Common voice downlink gain controls */ "DAC Voice Digital Downlink Volume" ,0 , 0 x31, 0 , digital_voice_downlink_tlv),"DAC Voice Analog Downlink Volume" ,3 , 0 x12, 1 , analog_tlv),"DAC Voice Analog Downlink Switch" ,1 , 1 , 0 ),/* Separate output gain controls */ "PreDriv Playback Volume" ,4 , 3 , 0 , snd_soc_get_volsw_r2_twl4030,"Headset Playback Volume" ,0 , 2 , 3 , 0 , snd_soc_get_volsw_twl4030,"Carkit Playback Volume" ,4 , 3 , 0 , snd_soc_get_volsw_r2_twl4030,"Earpiece Playback Volume" ,4 , 3 , 0 , snd_soc_get_volsw_twl4030,/* Common capture gain controls */ "TX1 Digital Capture Volume" ,0 , 0 x1f, 0 , digital_capture_tlv),"TX2 Digital Capture Volume" ,0 , 0 x1f, 0 , digital_capture_tlv),"Analog Capture Volume" , TWL4030_REG_ANAMIC_GAIN,0 , 3 , 5 , 0 , input_gain_tlv),"AVADC Clock Priority" , twl4030_avadc_clk_priority_enum),"HS ramp delay" , twl4030_rampdelay_enum),"Vibra H-bridge mode" , twl4030_vibradirmode_enum),"Vibra H-bridge direction" , twl4030_vibradir_enum),"Digimic LR Swap" , twl4030_digimicswap_enum),static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {/* Left channel inputs */ "MAINMIC" ),"HSMIC" ),"AUXL" ),"CARKITMIC" ),/* Right channel inputs */ "SUBMIC" ),"AUXR" ),/* Digital microphones (Stereo) */ "DIGIMIC0" ),"DIGIMIC1" ),/* Outputs */ "EARPIECE" ),"PREDRIVEL" ),"PREDRIVER" ),"HSOL" ),"HSOR" ),"CARKITL" ),"CARKITR" ),"HFL" ),"HFR" ),"VIBRA" ),/* AIF and APLL clocks for running DAIs (including loopback) */ "Virtual HiFi OUT" ),"Virtual HiFi IN" ),"Virtual Voice OUT" ),/* DACs */ "DAC Right1" , NULL, SND_SOC_NOPM, 0 , 0 ),"DAC Left1" , NULL, SND_SOC_NOPM, 0 , 0 ),"DAC Right2" , NULL, SND_SOC_NOPM, 0 , 0 ),"DAC Left2" , NULL, SND_SOC_NOPM, 0 , 0 ),"DAC Voice" , NULL, SND_SOC_NOPM, 0 , 0 ),"VAIFIN" , "Voice Playback" , 0 ,6 , 0 ),/* Analog bypasses */ "Right1 Analog Loopback" , SND_SOC_NOPM, 0 , 0 ,"Left1 Analog Loopback" , SND_SOC_NOPM, 0 , 0 ,"Right2 Analog Loopback" , SND_SOC_NOPM, 0 , 0 ,"Left2 Analog Loopback" , SND_SOC_NOPM, 0 , 0 ,"Voice Analog Loopback" , SND_SOC_NOPM, 0 , 0 ,/* Master analog loopback switch */ "FM Loop Enable" , TWL4030_REG_MISC_SET_1, 5 , 0 ,0 ),/* Digital bypasses */ "Left Digital Loopback" , SND_SOC_NOPM, 0 , 0 ,"Right Digital Loopback" , SND_SOC_NOPM, 0 , 0 ,"Voice Digital Loopback" , SND_SOC_NOPM, 0 , 0 ,/* Digital mixers, power control for the physical DACs */ "Digital R1 Playback Mixer" ,0 , 0 , NULL, 0 ),"Digital L1 Playback Mixer" ,1 , 0 , NULL, 0 ),"Digital R2 Playback Mixer" ,2 , 0 , NULL, 0 ),"Digital L2 Playback Mixer" ,3 , 0 , NULL, 0 ),"Digital Voice Playback Mixer" ,4 , 0 , NULL, 0 ),/* Analog mixers, power control for the physical PGAs */ "Analog R1 Playback Mixer" ,0 , 0 , NULL, 0 ),"Analog L1 Playback Mixer" ,0 , 0 , NULL, 0 ),"Analog R2 Playback Mixer" ,0 , 0 , NULL, 0 ),"Analog L2 Playback Mixer" ,0 , 0 , NULL, 0 ),"Analog Voice Playback Mixer" ,0 , 0 , NULL, 0 ),"APLL Enable" , SND_SOC_NOPM, 0 , 0 , apll_event,"AIF Enable" , SND_SOC_NOPM, 0 , 0 , aif_event,/* Output MIXER controls */ /* Earpiece */ "Earpiece Mixer" , SND_SOC_NOPM, 0 , 0 ,0 ],"Earpiece PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , earpiecepga_event,/* PreDrivL/R */ "PredriveL Mixer" , SND_SOC_NOPM, 0 , 0 ,0 ],"PredriveL PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , predrivelpga_event,"PredriveR Mixer" , SND_SOC_NOPM, 0 , 0 ,0 ],"PredriveR PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , predriverpga_event,/* HeadsetL/R */ "HeadsetL Mixer" , SND_SOC_NOPM, 0 , 0 ,0 ],"HeadsetL PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , headsetlpga_event,"HeadsetR Mixer" , SND_SOC_NOPM, 0 , 0 ,0 ],"HeadsetR PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , headsetrpga_event,/* CarkitL/R */ "CarkitL Mixer" , SND_SOC_NOPM, 0 , 0 ,0 ],"CarkitL PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , carkitlpga_event,"CarkitR Mixer" , SND_SOC_NOPM, 0 , 0 ,0 ],"CarkitR PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , carkitrpga_event,/* Output MUX controls */ /* HandsfreeL/R */ "HandsfreeL Mux" , SND_SOC_NOPM, 0 , 0 ,"HandsfreeL" , SND_SOC_NOPM, 0 , 0 ,"HandsfreeL PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , handsfreelpga_event,"HandsfreeR Mux" , SND_SOC_NOPM, 5 , 0 ,"HandsfreeR" , SND_SOC_NOPM, 0 , 0 ,"HandsfreeR PGA" , SND_SOC_NOPM,0 , 0 , NULL, 0 , handsfreerpga_event,/* Vibra */ "Vibra Mux" , TWL4030_REG_VIBRA_CTL, 0 , 0 ,"Vibra Route" , SND_SOC_NOPM, 0 , 0 ,/* Introducing four virtual ADC, since TWL4030 have four channel for "ADC Virtual Left1" , NULL, SND_SOC_NOPM, 0 , 0 ),"ADC Virtual Right1" , NULL, SND_SOC_NOPM, 0 , 0 ),"ADC Virtual Left2" , NULL, SND_SOC_NOPM, 0 , 0 ),"ADC Virtual Right2" , NULL, SND_SOC_NOPM, 0 , 0 ),"VAIFOUT" , "Voice Capture" , 0 ,5 , 0 ),/* Analog/Digital mic path selection. TX1 Left / Right : either analog Left / Right or Digimic0 "TX1 Capture Route" , SND_SOC_NOPM, 0 , 0 ,"TX2 Capture Route" , SND_SOC_NOPM, 0 , 0 ,/* Analog input mixers for the capture amplifiers */ "Analog Left" ,4 , 0 ,0 ],"Analog Right" ,4 , 0 ,0 ],"ADC Physical Left" ,3 , 0 , NULL, 0 ),"ADC Physical Right" ,1 , 0 , NULL, 0 ),"Digimic0 Enable" ,1 , 0 , NULL, 0 ,"Digimic1 Enable" ,3 , 0 , NULL, 0 ,"micbias1 select" , TWL4030_REG_MICBIAS_CTL, 5 , 0 ,0 ),"micbias2 select" , TWL4030_REG_MICBIAS_CTL, 6 , 0 ,0 ),/* Microphone bias */ "Mic Bias 1" ,0 , 0 , NULL, 0 ),"Mic Bias 2" ,1 , 0 , NULL, 0 ),"Headset Mic Bias" ,2 , 0 , NULL, 0 ),"VIF Enable" , TWL4030_REG_VOICE_IF, 0 , 0 , NULL, 0 ),static const struct snd_soc_dapm_route intercon[] = {/* Stream -> DAC mapping */ "DAC Right1" , NULL, "HiFi Playback" },"DAC Left1" , NULL, "HiFi Playback" },"DAC Right2" , NULL, "HiFi Playback" },"DAC Left2" , NULL, "HiFi Playback" },"DAC Voice" , NULL, "VAIFIN" },/* ADC -> Stream mapping */ "HiFi Capture" , NULL, "ADC Virtual Left1" },"HiFi Capture" , NULL, "ADC Virtual Right1" },"HiFi Capture" , NULL, "ADC Virtual Left2" },"HiFi Capture" , NULL, "ADC Virtual Right2" },"VAIFOUT" , NULL, "ADC Virtual Left2" },"VAIFOUT" , NULL, "ADC Virtual Right2" },"VAIFOUT" , NULL, "VIF Enable" },"Digital L1 Playback Mixer" , NULL, "DAC Left1" },"Digital R1 Playback Mixer" , NULL, "DAC Right1" },"Digital L2 Playback Mixer" , NULL, "DAC Left2" },"Digital R2 Playback Mixer" , NULL, "DAC Right2" },"Digital Voice Playback Mixer" , NULL, "DAC Voice" },/* Supply for the digital part (APLL) */ "Digital Voice Playback Mixer" , NULL, "APLL Enable" },"DAC Left1" , NULL, "AIF Enable" },"DAC Right1" , NULL, "AIF Enable" },"DAC Left2" , NULL, "AIF Enable" },"DAC Right1" , NULL, "AIF Enable" },"DAC Voice" , NULL, "VIF Enable" },"Digital R2 Playback Mixer" , NULL, "AIF Enable" },"Digital L2 Playback Mixer" , NULL, "AIF Enable" },"Analog L1 Playback Mixer" , NULL, "Digital L1 Playback Mixer" },"Analog R1 Playback Mixer" , NULL, "Digital R1 Playback Mixer" },"Analog L2 Playback Mixer" , NULL, "Digital L2 Playback Mixer" },"Analog R2 Playback Mixer" , NULL, "Digital R2 Playback Mixer" },"Analog Voice Playback Mixer" , NULL, "Digital Voice Playback Mixer" },/* Internal playback routings */ /* Earpiece */ "Earpiece Mixer" , "Voice" , "Analog Voice Playback Mixer" },"Earpiece Mixer" , "AudioL1" , "Analog L1 Playback Mixer" },"Earpiece Mixer" , "AudioL2" , "Analog L2 Playback Mixer" },"Earpiece Mixer" , "AudioR1" , "Analog R1 Playback Mixer" },"Earpiece PGA" , NULL, "Earpiece Mixer" },/* PreDrivL */ "PredriveL Mixer" , "Voice" , "Analog Voice Playback Mixer" },"PredriveL Mixer" , "AudioL1" , "Analog L1 Playback Mixer" },"PredriveL Mixer" , "AudioL2" , "Analog L2 Playback Mixer" },"PredriveL Mixer" , "AudioR2" , "Analog R2 Playback Mixer" },"PredriveL PGA" , NULL, "PredriveL Mixer" },/* PreDrivR */ "PredriveR Mixer" , "Voice" , "Analog Voice Playback Mixer" },"PredriveR Mixer" , "AudioR1" , "Analog R1 Playback Mixer" },"PredriveR Mixer" , "AudioR2" , "Analog R2 Playback Mixer" },"PredriveR Mixer" , "AudioL2" , "Analog L2 Playback Mixer" },"PredriveR PGA" , NULL, "PredriveR Mixer" },/* HeadsetL */ "HeadsetL Mixer" , "Voice" , "Analog Voice Playback Mixer" },"HeadsetL Mixer" , "AudioL1" , "Analog L1 Playback Mixer" },"HeadsetL Mixer" , "AudioL2" , "Analog L2 Playback Mixer" },"HeadsetL PGA" , NULL, "HeadsetL Mixer" },/* HeadsetR */ "HeadsetR Mixer" , "Voice" , "Analog Voice Playback Mixer" },"HeadsetR Mixer" , "AudioR1" , "Analog R1 Playback Mixer" },"HeadsetR Mixer" , "AudioR2" , "Analog R2 Playback Mixer" },"HeadsetR PGA" , NULL, "HeadsetR Mixer" },/* CarkitL */ "CarkitL Mixer" , "Voice" , "Analog Voice Playback Mixer" },"CarkitL Mixer" , "AudioL1" , "Analog L1 Playback Mixer" },"CarkitL Mixer" , "AudioL2" , "Analog L2 Playback Mixer" },"CarkitL PGA" , NULL, "CarkitL Mixer" },/* CarkitR */ "CarkitR Mixer" , "Voice" , "Analog Voice Playback Mixer" },"CarkitR Mixer" , "AudioR1" , "Analog R1 Playback Mixer" },"CarkitR Mixer" , "AudioR2" , "Analog R2 Playback Mixer" },"CarkitR PGA" , NULL, "CarkitR Mixer" },/* HandsfreeL */ "HandsfreeL Mux" , "Voice" , "Analog Voice Playback Mixer" },"HandsfreeL Mux" , "AudioL1" , "Analog L1 Playback Mixer" },"HandsfreeL Mux" , "AudioL2" , "Analog L2 Playback Mixer" },"HandsfreeL Mux" , "AudioR2" , "Analog R2 Playback Mixer" },"HandsfreeL" , "Switch" , "HandsfreeL Mux" },"HandsfreeL PGA" , NULL, "HandsfreeL" },/* HandsfreeR */ "HandsfreeR Mux" , "Voice" , "Analog Voice Playback Mixer" },"HandsfreeR Mux" , "AudioR1" , "Analog R1 Playback Mixer" },"HandsfreeR Mux" , "AudioR2" , "Analog R2 Playback Mixer" },"HandsfreeR Mux" , "AudioL2" , "Analog L2 Playback Mixer" },"HandsfreeR" , "Switch" , "HandsfreeR Mux" },"HandsfreeR PGA" , NULL, "HandsfreeR" },/* Vibra */ "Vibra Mux" , "AudioL1" , "DAC Left1" },"Vibra Mux" , "AudioR1" , "DAC Right1" },"Vibra Mux" , "AudioL2" , "DAC Left2" },"Vibra Mux" , "AudioR2" , "DAC Right2" },/* outputs */ /* Must be always connected (for AIF and APLL) */ "Virtual HiFi OUT" , NULL, "DAC Left1" },"Virtual HiFi OUT" , NULL, "DAC Right1" },"Virtual HiFi OUT" , NULL, "DAC Left2" },"Virtual HiFi OUT" , NULL, "DAC Right2" },/* Must be always connected (for APLL) */ "Virtual Voice OUT" , NULL, "Digital Voice Playback Mixer" },/* Physical outputs */ "EARPIECE" , NULL, "Earpiece PGA" },"PREDRIVEL" , NULL, "PredriveL PGA" },"PREDRIVER" , NULL, "PredriveR PGA" },"HSOL" , NULL, "HeadsetL PGA" },"HSOR" , NULL, "HeadsetR PGA" },"CARKITL" , NULL, "CarkitL PGA" },"CARKITR" , NULL, "CarkitR PGA" },"HFL" , NULL, "HandsfreeL PGA" },"HFR" , NULL, "HandsfreeR PGA" },"Vibra Route" , "Audio" , "Vibra Mux" },"VIBRA" , NULL, "Vibra Route" },/* Capture path */ /* Must be always connected (for AIF and APLL) */ "ADC Virtual Left1" , NULL, "Virtual HiFi IN" },"ADC Virtual Right1" , NULL, "Virtual HiFi IN" },"ADC Virtual Left2" , NULL, "Virtual HiFi IN" },"ADC Virtual Right2" , NULL, "Virtual HiFi IN" },/* Physical inputs */ "Analog Left" , "Main Mic Capture Switch" , "MAINMIC" },"Analog Left" , "Headset Mic Capture Switch" , "HSMIC" },"Analog Left" , "AUXL Capture Switch" , "AUXL" },"Analog Left" , "Carkit Mic Capture Switch" , "CARKITMIC" },"Analog Right" , "Sub Mic Capture Switch" , "SUBMIC" },"Analog Right" , "AUXR Capture Switch" , "AUXR" },"ADC Physical Left" , NULL, "Analog Left" },"ADC Physical Right" , NULL, "Analog Right" },"Digimic0 Enable" , NULL, "DIGIMIC0" },"Digimic1 Enable" , NULL, "DIGIMIC1" },"DIGIMIC0" , NULL, "micbias1 select" },"DIGIMIC1" , NULL, "micbias2 select" },/* TX1 Left capture path */ "TX1 Capture Route" , "Analog" , "ADC Physical Left" },"TX1 Capture Route" , "Digimic0" , "Digimic0 Enable" },/* TX1 Right capture path */ "TX1 Capture Route" , "Analog" , "ADC Physical Right" },"TX1 Capture Route" , "Digimic0" , "Digimic0 Enable" },/* TX2 Left capture path */ "TX2 Capture Route" , "Analog" , "ADC Physical Left" },"TX2 Capture Route" , "Digimic1" , "Digimic1 Enable" },/* TX2 Right capture path */ "TX2 Capture Route" , "Analog" , "ADC Physical Right" },"TX2 Capture Route" , "Digimic1" , "Digimic1 Enable" },"ADC Virtual Left1" , NULL, "TX1 Capture Route" },"ADC Virtual Right1" , NULL, "TX1 Capture Route" },"ADC Virtual Left2" , NULL, "TX2 Capture Route" },"ADC Virtual Right2" , NULL, "TX2 Capture Route" },"ADC Virtual Left1" , NULL, "AIF Enable" },"ADC Virtual Right1" , NULL, "AIF Enable" },"ADC Virtual Left2" , NULL, "AIF Enable" },"ADC Virtual Right2" , NULL, "AIF Enable" },/* Analog bypass routes */ "Right1 Analog Loopback" , "Switch" , "Analog Right" },"Left1 Analog Loopback" , "Switch" , "Analog Left" },"Right2 Analog Loopback" , "Switch" , "Analog Right" },"Left2 Analog Loopback" , "Switch" , "Analog Left" },"Voice Analog Loopback" , "Switch" , "Analog Left" },/* Supply for the Analog loopbacks */ "Right1 Analog Loopback" , NULL, "FM Loop Enable" },"Left1 Analog Loopback" , NULL, "FM Loop Enable" },"Right2 Analog Loopback" , NULL, "FM Loop Enable" },"Left2 Analog Loopback" , NULL, "FM Loop Enable" },"Voice Analog Loopback" , NULL, "FM Loop Enable" },"Analog R1 Playback Mixer" , NULL, "Right1 Analog Loopback" },"Analog L1 Playback Mixer" , NULL, "Left1 Analog Loopback" },"Analog R2 Playback Mixer" , NULL, "Right2 Analog Loopback" },"Analog L2 Playback Mixer" , NULL, "Left2 Analog Loopback" },"Analog Voice Playback Mixer" , NULL, "Voice Analog Loopback" },/* Digital bypass routes */ "Right Digital Loopback" , "Volume" , "TX1 Capture Route" },"Left Digital Loopback" , "Volume" , "TX1 Capture Route" },"Voice Digital Loopback" , "Volume" , "TX2 Capture Route" },"Digital R2 Playback Mixer" , NULL, "Right Digital Loopback" },"Digital L2 Playback Mixer" , NULL, "Left Digital Loopback" },"Digital Voice Playback Mixer" , NULL, "Voice Digital Loopback" },static int twl4030_set_bias_level(struct snd_soc_component *component,enum snd_soc_bias_level level)switch (level) {case SND_SOC_BIAS_ON:break ;case SND_SOC_BIAS_PREPARE:break ;case SND_SOC_BIAS_STANDBY:if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)1 );break ;case SND_SOC_BIAS_OFF:0 );break ;return 0 ;static void twl4030_constraints(struct twl4030_priv *twl4030,struct snd_pcm_substream *mst_substream)struct snd_pcm_substream *slv_substream;/* Pick the stream, which need to be constrained */ if (mst_substream == twl4030->master_substream)else if (mst_substream == twl4030->slave_substream)else /* This should not happen.. */ return ;/* Set the constraints according to the already configured stream */ /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for static void twl4030_tdm_enable(struct snd_soc_component *component, int direction,int enable)if (direction == SNDRV_PCM_STREAM_PLAYBACK)else if (enable)else static int twl4030_startup(struct snd_pcm_substream *substream,struct snd_soc_dai *dai)struct snd_soc_component *component = dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);if (twl4030->master_substream) {/* The DAI has one configuration for playback and capture, so * if the DAI has been already configured then constrain this if (twl4030->configured)else {if (!(twl4030_read(component, TWL4030_REG_CODEC_MODE) &/* In option2 4 channel is not supported, set the * constraint for the first stream for channels , the 2 );return 0 ;static void twl4030_shutdown(struct snd_pcm_substream *substream,struct snd_soc_dai *dai)struct snd_soc_component *component = dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);if (twl4030->master_substream == substream)/* If all streams are closed, or the remaining stream has not yet if (!twl4030->master_substream)0 ;else if (!twl4030->master_substream->runtime->channels)0 ;/* If the closing substream had 4 channel, do the necessary cleanup */ if (substream->runtime->channels == 4 )0 );static int twl4030_hw_params(struct snd_pcm_substream *substream,struct snd_pcm_hw_params *params,struct snd_soc_dai *dai)struct snd_soc_component *component = dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);/* If the substream has 4 channel, do the necessary setup */ if (params_channels(params) == 4 ) {/* Safety check: are we in the correct operating mode and if ((mode & TWL4030_OPTION_1) &&1 );else return -EINVAL;if (twl4030->configured)/* Ignoring hw_params for already configured DAI */ return 0 ;/* bit rate */ switch (params_rate(params)) {case 8000 :break ;case 11025 :break ;case 12000 :break ;case 16000 :break ;case 22050 :break ;case 24000 :break ;case 32000 :break ;case 44100 :break ;case 48000 :break ;case 96000 :break ;default :"%s: unknown rate %d\n" , __func__,return -EINVAL;/* sample size */ switch (params_width(params)) {case 16 :break ;case 32 :break ;default :"%s: unsupported bits/sample %d\n" ,return -EINVAL;if (format != old_format || mode != old_mode) {if (twl4030->codec_powered) {/* * If the codec is powered , than we need to toggle the * codec power . 0 );1 );else {/* Store the important parameters for the DAI configuration and set 1 ;/* If both playback and capture streams are open, and one of them * is setting the hw parameters right now ( since we are here ) , set if (twl4030->slave_substream)return 0 ;static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,unsigned int freq, int dir)struct snd_soc_component *component = codec_dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);switch (freq) {case 19200000 :case 26000000 :case 38400000 :break ;default :"Unsupported HFCLKIN: %u\n" , freq);return -EINVAL;if ((freq / 1000 ) != twl4030->sysclk) {"Mismatch in HFCLKIN: %u (configured: %u)\n" ,1000 );return -EINVAL;return 0 ;static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)struct snd_soc_component *component = codec_dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);/* get format */ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {case SND_SOC_DAIFMT_CBP_CFP:break ;case SND_SOC_DAIFMT_CBC_CFC:break ;default :return -EINVAL;/* interface format */ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {case SND_SOC_DAIFMT_I2S:break ;case SND_SOC_DAIFMT_DSP_A:break ;default :return -EINVAL;if (format != old_format) {if (twl4030->codec_powered) {/* * If the codec is powered , than we need to toggle the * codec power . 0 );1 );else {return 0 ;static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate)struct snd_soc_component *component = dai->component;if (tristate)else return twl4030_write(component, TWL4030_REG_AUDIO_IF, reg);/* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R static void twl4030_voice_enable(struct snd_soc_component *component, int direction,int enable)if (direction == SNDRV_PCM_STREAM_PLAYBACK)else if (enable)else static int twl4030_voice_startup(struct snd_pcm_substream *substream,struct snd_soc_dai *dai)struct snd_soc_component *component = dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);/* If the system master clock is not 26MHz, the voice PCM interface is * not available . if (twl4030->sysclk != 26000 ) {"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n" ,return -EINVAL;/* If the codec mode is not option2, the voice PCM interface is not * available . if (mode != TWL4030_OPTION_2) {"%s: the codec mode is not option2\n" ,return -EINVAL;return 0 ;static void twl4030_voice_shutdown(struct snd_pcm_substream *substream,struct snd_soc_dai *dai)struct snd_soc_component *component = dai->component;/* Enable voice digital filters */ 0 );static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,struct snd_pcm_hw_params *params,struct snd_soc_dai *dai)struct snd_soc_component *component = dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);/* Enable voice digital filters */ 1 );/* bit rate */ switch (params_rate(params)) {case 8000 :break ;case 16000 :break ;default :"%s: unknown rate %d\n" , __func__,return -EINVAL;if (mode != old_mode) {if (twl4030->codec_powered) {/* * If the codec is powered , than we need to toggle the * codec power . 0 );1 );else {return 0 ;static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,int clk_id, unsigned int freq, int dir)struct snd_soc_component *component = codec_dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);if (freq != 26000000 ) {"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n" ,1000 );return -EINVAL;if ((freq / 1000 ) != twl4030->sysclk) {"Mismatch in HFCLKIN: %u (configured: %u)\n" ,1000 );return -EINVAL;return 0 ;static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,unsigned int fmt)struct snd_soc_component *component = codec_dai->component;struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);/* get format */ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {case SND_SOC_DAIFMT_CBP_CFP:break ;case SND_SOC_DAIFMT_CBC_CFC:break ;default :return -EINVAL;/* clock inversion */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {case SND_SOC_DAIFMT_IB_NF:break ;case SND_SOC_DAIFMT_NB_IF:break ;default :return -EINVAL;if (format != old_format) {if (twl4030->codec_powered) {/* * If the codec is powered , than we need to toggle the * codec power . 0 );1 );else {return 0 ;static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)struct snd_soc_component *component = dai->component;if (tristate)else return twl4030_write(component, TWL4030_REG_VOICE_IF, reg);#define TWL4030_RATES (SNDRV_PCM_RATE_8000_48000)#define TWL4030_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)static const struct snd_soc_dai_ops twl4030_dai_hifi_ops = {static const struct snd_soc_dai_ops twl4030_dai_voice_ops = {static struct snd_soc_dai_driver twl4030_dai[] = {"twl4030-hifi" ,"HiFi Playback" ,2 ,4 ,24 ,},"HiFi Capture" ,2 ,4 ,24 ,},"twl4030-voice" ,"Voice Playback" ,1 ,1 ,"Voice Capture" ,1 ,2 ,static int twl4030_soc_probe(struct snd_soc_component *component)struct twl4030_priv *twl4030;sizeof (struct twl4030_priv),if (!twl4030)return -ENOMEM;/* Set the defaults, and power up the codec */ 1000 ;return twl4030_init_chip(component);static const struct snd_soc_component_driver soc_component_dev_twl4030 = {1 ,1 ,static int twl4030_codec_probe(struct platform_device *pdev)return devm_snd_soc_register_component(&pdev->dev,"platform:twl4030-codec" );static struct platform_driver twl4030_codec_driver = {"twl4030-codec" ,"ASoC TWL4030 codec driver" );"Steve Sakoman" );"GPL" );
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