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twl4030.c
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// SPDX-License-Identifier: GPL-2.0-only
/*
* ALSA SoC TWL4030 codec driver
*
* Author: Steve Sakoman, <[email protected]>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/mfd/twl.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>
/* Register descriptions are here */
#include <linux/mfd/twl4030-audio.h>
/* TWL4030 PMBR1 Register */
#define TWL4030_PMBR1_REG 0x0D
/* TWL4030 PMBR1 Register GPIO6 mux bits */
#define TWL4030_GPIO6_PWM0_MUTE(value) ((value & 0x03) << 2)
#define TWL4030_CACHEREGNUM (TWL4030_REG_MISC_SET_2 + 1)
/* 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 */
u8 hsl_enabled, hsr_enabled;
u8 earpiece_enabled;
u8 predrivel_enabled, predriver_enabled;
u8 carkitl_enabled, carkitr_enabled;
u8 ctl_cache[TWL4030_REG_PRECKR_CTL - TWL4030_REG_EAR_CTL + 1];
struct twl4030_codec_data *pdata;
};
static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030)
{
int i;
u8 byte;
for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) {
twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, i);
twl4030->ctl_cache[i - TWL4030_REG_EAR_CTL] = byte;
}
}
static unsigned int twl4030_read(struct snd_soc_component *component, unsigned int reg)
{
struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
u8 value = 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:
value = twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL];
break;
default:
twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
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)
write_to_reg = true;
break;
case TWL4030_REG_PREDL_CTL:
if (twl4030->predrivel_enabled)
write_to_reg = true;
break;
case TWL4030_REG_PREDR_CTL:
if (twl4030->predriver_enabled)
write_to_reg = true;
break;
case TWL4030_REG_PRECKL_CTL:
if (twl4030->carkitl_enabled)
write_to_reg = true;
break;
case TWL4030_REG_PRECKR_CTL:
if (twl4030->carkitr_enabled)
write_to_reg = true;
break;
case TWL4030_REG_HS_GAIN_SET:
if (twl4030->hsl_enabled || twl4030->hsr_enabled)
write_to_reg = true;
break;
default:
/* All other register can be written */
write_to_reg = 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:
twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL] = value;
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) {
time *= 1000;
usleep_range(time, time + 500);
} else {
msleep(time);
}
}
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)
mode = twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
else
mode = twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
if (mode >= 0)
twl4030->codec_powered = enable;
/* REVISIT: this delay is present in TI sample drivers */
/* but there seems to be no TRM requirement for it */
udelay(10);
}
static void twl4030_setup_pdata_of(struct twl4030_codec_data *pdata,
struct device_node *node)
{
int value;
of_property_read_u32(node, "ti,digimic_delay",
&pdata->digimic_delay);
of_property_read_u32(node, "ti,ramp_delay_value",
&pdata->ramp_delay_value);
of_property_read_u32(node, "ti,offset_cncl_path",
&pdata->offset_cncl_path);
if (!of_property_read_u32(node, "ti,hs_extmute", &value))
pdata->hs_extmute = value;
pdata->hs_extmute_gpio = of_get_named_gpio(node,
"ti,hs_extmute_gpio", 0);
if (gpio_is_valid(pdata->hs_extmute_gpio))
pdata->hs_extmute = 1;
}
static struct twl4030_codec_data *twl4030_get_pdata(struct snd_soc_component *component)
{
struct twl4030_codec_data *pdata = dev_get_platdata(component->dev);
struct device_node *twl4030_codec_node = NULL;
twl4030_codec_node = of_get_child_by_name(component->dev->parent->of_node,
"codec");
if (!pdata && twl4030_codec_node) {
pdata = devm_kzalloc(component->dev,
sizeof(struct twl4030_codec_data),
GFP_KERNEL);
if (!pdata) {
of_node_put(twl4030_codec_node);
return NULL;
}
twl4030_setup_pdata_of(pdata, twl4030_codec_node);
of_node_put(twl4030_codec_node);
}
return pdata;
}
static void twl4030_init_chip(struct snd_soc_component *component)
{
struct twl4030_codec_data *pdata;
struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
u8 reg, byte;
int i = 0;
pdata = twl4030_get_pdata(component);
if (pdata && pdata->hs_extmute) {
if (gpio_is_valid(pdata->hs_extmute_gpio)) {
int ret;
if (!pdata->hs_extmute_gpio)
dev_warn(component->dev,
"Extmute GPIO is 0 is this correct?\n");
ret = gpio_request_one(pdata->hs_extmute_gpio,
GPIOF_OUT_INIT_LOW,
"hs_extmute");
if (ret) {
dev_err(component->dev,
"Failed to get hs_extmute GPIO\n");
pdata->hs_extmute_gpio = -1;
}
} else {
u8 pin_mux;
/* Set TWL4030 GPIO6 as EXTMUTE signal */
twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
TWL4030_PMBR1_REG);
pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
TWL4030_PMBR1_REG);
}
}
/* Initialize the local ctl register cache */
tw4030_init_ctl_cache(twl4030);
/* anti-pop when changing analog gain */
reg = twl4030_read(component, TWL4030_REG_MISC_SET_1);
twl4030_write(component, TWL4030_REG_MISC_SET_1,
reg | TWL4030_SMOOTH_ANAVOL_EN);
twl4030_write(component, TWL4030_REG_OPTION,
TWL4030_ATXL1_EN | TWL4030_ATXR1_EN |
TWL4030_ARXL2_EN | TWL4030_ARXR2_EN);
/* REG_ARXR2_APGA_CTL reset according to the TRM: 0dB, DA_EN */
twl4030_write(component, TWL4030_REG_ARXR2_APGA_CTL, 0x32);
/* Machine dependent setup */
if (!pdata)
return;
twl4030->pdata = pdata;
reg = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
reg &= ~TWL4030_RAMP_DELAY;
reg |= (pdata->ramp_delay_value << 2);
twl4030_write(component, TWL4030_REG_HS_POPN_SET, reg);
/* initiate offset cancellation */
twl4030_codec_enable(component, 1);
reg = twl4030_read(component, TWL4030_REG_ANAMICL);
reg &= ~TWL4030_OFFSET_CNCL_SEL;
reg |= pdata->offset_cncl_path;
twl4030_write(component, TWL4030_REG_ANAMICL,
reg | TWL4030_CNCL_OFFSET_START);
/*
* Wait for offset cancellation to complete.
* Since this takes a while, do not slam the i2c.
* Start polling the status after ~20ms.
*/
msleep(20);
do {
usleep_range(1000, 2000);
twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, true);
twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
TWL4030_REG_ANAMICL);
twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, false);
} while ((i++ < 100) &&
((byte & TWL4030_CNCL_OFFSET_START) ==
TWL4030_CNCL_OFFSET_START));
twl4030_codec_enable(component, 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) {
twl4030->apll_enabled++;
if (twl4030->apll_enabled == 1)
twl4030_audio_enable_resource(
TWL4030_AUDIO_RES_APLL);
} else {
twl4030->apll_enabled--;
if (!twl4030->apll_enabled)
twl4030_audio_disable_resource(
TWL4030_AUDIO_RES_APLL);
}
}
/* Earpiece */
static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {
SOC_DAPM_SINGLE("Voice", TWL4030_REG_EAR_CTL, 0, 1, 0),
SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_EAR_CTL, 1, 1, 0),
SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_EAR_CTL, 2, 1, 0),
SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_EAR_CTL, 3, 1, 0),
};
/* PreDrive Left */
static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {
SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDL_CTL, 0, 1, 0),
SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PREDL_CTL, 1, 1, 0),
SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDL_CTL, 2, 1, 0),
SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDL_CTL, 3, 1, 0),
};
/* PreDrive Right */
static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {
SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDR_CTL, 0, 1, 0),
SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PREDR_CTL, 1, 1, 0),
SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDR_CTL, 2, 1, 0),
SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDR_CTL, 3, 1, 0),
};
/* Headset Left */
static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {
SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 0, 1, 0),
SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_HS_SEL, 1, 1, 0),
SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_HS_SEL, 2, 1, 0),
};
/* Headset Right */
static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {
SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 3, 1, 0),
SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_HS_SEL, 4, 1, 0),
SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_HS_SEL, 5, 1, 0),
};
/* Carkit Left */
static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {
SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKL_CTL, 0, 1, 0),
SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PRECKL_CTL, 1, 1, 0),
SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PRECKL_CTL, 2, 1, 0),
};
/* Carkit Right */
static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {
SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKR_CTL, 0, 1, 0),
SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PRECKR_CTL, 1, 1, 0),
SOC_DAPM_SINGLE("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,
TWL4030_REG_HFL_CTL, 0,
twl4030_handsfreel_texts);
static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control =
SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
/* Handsfree Left virtual mute */
static const struct snd_kcontrol_new twl4030_dapm_handsfreelmute_control =
SOC_DAPM_SINGLE_VIRT("Switch", 1);
/* Handsfree Right */
static const char *twl4030_handsfreer_texts[] =
{"Voice", "AudioR1", "AudioR2", "AudioL2"};
static SOC_ENUM_SINGLE_DECL(twl4030_handsfreer_enum,
TWL4030_REG_HFR_CTL, 0,
twl4030_handsfreer_texts);
static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control =
SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
/* Handsfree Right virtual mute */
static const struct snd_kcontrol_new twl4030_dapm_handsfreermute_control =
SOC_DAPM_SINGLE_VIRT("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,
TWL4030_REG_VIBRA_CTL, 2,
twl4030_vibra_texts);
static const struct snd_kcontrol_new twl4030_dapm_vibra_control =
SOC_DAPM_ENUM("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,
TWL4030_REG_VIBRA_CTL, 4,
twl4030_vibrapath_texts);
static const struct snd_kcontrol_new twl4030_dapm_vibrapath_control =
SOC_DAPM_ENUM("Route", twl4030_vibrapath_enum);
/* Left analog microphone selection */
static const struct snd_kcontrol_new twl4030_dapm_analoglmic_controls[] = {
SOC_DAPM_SINGLE("Main Mic Capture Switch",
TWL4030_REG_ANAMICL, 0, 1, 0),
SOC_DAPM_SINGLE("Headset Mic Capture Switch",
TWL4030_REG_ANAMICL, 1, 1, 0),
SOC_DAPM_SINGLE("AUXL Capture Switch",
TWL4030_REG_ANAMICL, 2, 1, 0),
SOC_DAPM_SINGLE("Carkit Mic Capture Switch",
TWL4030_REG_ANAMICL, 3, 1, 0),
};
/* Right analog microphone selection */
static const struct snd_kcontrol_new twl4030_dapm_analogrmic_controls[] = {
SOC_DAPM_SINGLE("Sub Mic Capture Switch", TWL4030_REG_ANAMICR, 0, 1, 0),
SOC_DAPM_SINGLE("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,
TWL4030_REG_ADCMICSEL, 0,
twl4030_micpathtx1_texts);
static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control =
SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum);
/* TX2 L/R Analog/Digital microphone selection */
static const char *twl4030_micpathtx2_texts[] =
{"Analog", "Digimic1"};
static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx2_enum,
TWL4030_REG_ADCMICSEL, 2,
twl4030_micpathtx2_texts);
static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control =
SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum);
/* Analog bypass for AudioR1 */
static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR1_APGA_CTL, 2, 1, 0);
/* Analog bypass for AudioL1 */
static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL1_APGA_CTL, 2, 1, 0);
/* Analog bypass for AudioR2 */
static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR2_APGA_CTL, 2, 1, 0);
/* Analog bypass for AudioL2 */
static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control =
SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL2_APGA_CTL, 2, 1, 0);
/* Analog bypass for Voice */
static const struct snd_kcontrol_new twl4030_dapm_abypassv_control =
SOC_DAPM_SINGLE("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 =
SOC_DAPM_SINGLE_TLV("Volume",
TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
twl4030_dapm_dbypass_tlv);
/* Digital bypass right (TX1R -> RX2R) */
static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
SOC_DAPM_SINGLE_TLV("Volume",
TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
twl4030_dapm_dbypass_tlv);
/*
* 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 =
SOC_DAPM_SINGLE_TLV("Volume",
TWL4030_REG_VSTPGA, 0, 0x29, 0,
twl4030_dapm_dbypassv_tlv);
/*
* 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, mask) \
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: \
twl4030->pin_name##_enabled = 1; \
twl4030_write(component, reg, twl4030_read(component, reg)); \
break; \
case SND_SOC_DAPM_POST_PMD: \
twl4030->pin_name##_enabled = 0; \
twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, 0, reg); \
break; \
} \
return 0; \
}
TWL4030_OUTPUT_PGA(earpiece, TWL4030_REG_EAR_CTL, TWL4030_EAR_GAIN);
TWL4030_OUTPUT_PGA(predrivel, TWL4030_REG_PREDL_CTL, TWL4030_PREDL_GAIN);
TWL4030_OUTPUT_PGA(predriver, TWL4030_REG_PREDR_CTL, TWL4030_PREDR_GAIN);
TWL4030_OUTPUT_PGA(carkitl, TWL4030_REG_PRECKL_CTL, TWL4030_PRECKL_GAIN);
TWL4030_OUTPUT_PGA(carkitr, TWL4030_REG_PRECKR_CTL, TWL4030_PRECKR_GAIN);
static void handsfree_ramp(struct snd_soc_component *component, int reg, int ramp)
{
unsigned char hs_ctl;
hs_ctl = twl4030_read(component, reg);
if (ramp) {
/* HF ramp-up */
hs_ctl |= TWL4030_HF_CTL_REF_EN;
twl4030_write(component, reg, hs_ctl);
udelay(10);
hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
twl4030_write(component, reg, hs_ctl);
udelay(40);
hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
hs_ctl |= TWL4030_HF_CTL_HB_EN;
twl4030_write(component, reg, hs_ctl);
} else {
/* HF ramp-down */
hs_ctl &= ~TWL4030_HF_CTL_LOOP_EN;
hs_ctl &= ~TWL4030_HF_CTL_HB_EN;
twl4030_write(component, reg, hs_ctl);
hs_ctl &= ~TWL4030_HF_CTL_RAMP_EN;
twl4030_write(component, reg, hs_ctl);
udelay(40);
hs_ctl &= ~TWL4030_HF_CTL_REF_EN;
twl4030_write(component, reg, hs_ctl);
}
}
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:
handsfree_ramp(component, TWL4030_REG_HFL_CTL, 1);
break;
case SND_SOC_DAPM_POST_PMD:
handsfree_ramp(component, TWL4030_REG_HFL_CTL, 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:
handsfree_ramp(component, TWL4030_REG_HFR_CTL, 1);
break;
case SND_SOC_DAPM_POST_PMD:
handsfree_ramp(component, TWL4030_REG_HFR_CTL, 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);
twl4030_write(component, TWL4030_REG_VIBRA_SET, 0xff);
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:
twl4030_apll_enable(component, 1);
break;
case SND_SOC_DAPM_POST_PMD:
twl4030_apll_enable(component, 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);
u8 audio_if;
audio_if = twl4030_read(component, TWL4030_REG_AUDIO_IF);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* Enable AIF */
/* enable the PLL before we use it to clock the DAI */
twl4030_apll_enable(component, 1);
twl4030_write(component, TWL4030_REG_AUDIO_IF,
audio_if | TWL4030_AIF_EN);
break;
case SND_SOC_DAPM_POST_PMD:
/* disable the DAI before we stop it's source PLL */
twl4030_write(component, TWL4030_REG_AUDIO_IF,
audio_if & ~TWL4030_AIF_EN);
twl4030_apll_enable(component, 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_codec_data *pdata = twl4030->pdata;
/* Base values for ramp delay calculation: 2^19 - 2^26 */
unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
8388608, 16777216, 33554432, 67108864};
unsigned int delay;
hs_gain = twl4030_read(component, TWL4030_REG_HS_GAIN_SET);
hs_pop = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
twl4030->sysclk) + 1;
/* Enable external mute control, this dramatically reduces
* the pop-noise */
if (pdata && pdata->hs_extmute) {
if (gpio_is_valid(pdata->hs_extmute_gpio)) {
gpio_set_value(pdata->hs_extmute_gpio, 1);
} else {
hs_pop |= TWL4030_EXTMUTE;
twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
}
}
if (ramp) {
/* Headset ramp-up according to the TRM */
hs_pop |= TWL4030_VMID_EN;
twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
/* Actually write to the register */
twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
TWL4030_REG_HS_GAIN_SET);
hs_pop |= TWL4030_RAMP_EN;
twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
/* Wait ramp delay time + 1, so the VMID can settle */
twl4030_wait_ms(delay);
} else {
/* Headset ramp-down _not_ according to
* the TRM, but in a way that it is working */
hs_pop &= ~TWL4030_RAMP_EN;
twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
/* Wait ramp delay time + 1, so the VMID can settle */
twl4030_wait_ms(delay);
/* Bypass the reg_cache to mute the headset */
twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
TWL4030_REG_HS_GAIN_SET);
hs_pop &= ~TWL4030_VMID_EN;
twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
}
/* Disable external mute */
if (pdata && pdata->hs_extmute) {
if (gpio_is_valid(pdata->hs_extmute_gpio)) {
gpio_set_value(pdata->hs_extmute_gpio, 0);
} else {
hs_pop &= ~TWL4030_EXTMUTE;
twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
}
}
}
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)
headset_ramp(component, 1);
twl4030->hsl_enabled = 1;
break;
case SND_SOC_DAPM_POST_PMD:
/* Do the ramp-down only if both headsetL/R is disabled */
if (!twl4030->hsr_enabled)
headset_ramp(component, 0);
twl4030->hsl_enabled = 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)
headset_ramp(component, 1);
twl4030->hsr_enabled = 1;
break;
case SND_SOC_DAPM_POST_PMD:
/* Do the ramp-down only if both headsetL/R is disabled */
if (!twl4030->hsl_enabled)
headset_ramp(component, 0);
twl4030->hsr_enabled = 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_codec_data *pdata = twl4030->pdata;
if (pdata && pdata->digimic_delay)
twl4030_wait_ms(pdata->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:
* 0x0 : Power down (mute)
* 0x1 : 6dB
* 0x2 : 0 dB
* 0x3 : -6 dB
* Inverting not going to help with these.
* Custom volsw and volsw_2r get/put functions to handle these gain bits.
*/
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;
ucontrol->value.integer.value[0] =
(twl4030_read(component, reg) >> shift) & mask;
if (ucontrol->value.integer.value[0])
ucontrol->value.integer.value[0] =
max + 1 - ucontrol->value.integer.value[0];
if (shift != rshift) {
ucontrol->value.integer.value[1] =
(twl4030_read(component, reg) >> rshift) & mask;
if (ucontrol->value.integer.value[1])
ucontrol->value.integer.value[1] =
max + 1 - ucontrol->value.integer.value[1];
}
return 0;
}
static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_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;
val = (ucontrol->value.integer.value[0] & mask);
val_mask = mask << shift;
if (val)
val = max + 1 - val;
val = val << shift;
if (shift != rshift) {
val2 = (ucontrol->value.integer.value[1] & mask);
val_mask |= mask << rshift;
if (val2)
val2 = max + 1 - val2;
val |= val2 << rshift;
}
return snd_soc_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;
ucontrol->value.integer.value[0] =
(twl4030_read(component, reg) >> shift) & mask;
ucontrol->value.integer.value[1] =
(twl4030_read(component, reg2) >> shift) & mask;
if (ucontrol->value.integer.value[0])
ucontrol->value.integer.value[0] =
max + 1 - ucontrol->value.integer.value[0];
if (ucontrol->value.integer.value[1])
ucontrol->value.integer.value[1] =
max + 1 - ucontrol->value.integer.value[1];
return 0;
}
static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_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;
val_mask = mask << shift;
val = (ucontrol->value.integer.value[0] & mask);
val2 = (ucontrol->value.integer.value[1] & mask);
if (val)
val = max + 1 - val;
if (val2)
val2 = max + 1 - val2;
val = val << shift;
val2 = val2 << shift;
err = snd_soc_component_update_bits(component, reg, val_mask, val);
if (err < 0)
return err;
err = snd_soc_component_update_bits(component, reg2, val_mask, val2);
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,
TWL4030_REG_CODEC_MODE, 0,
twl4030_op_modes_texts);
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) {
dev_err(component->dev,
"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);
/*