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linux/sound/soc/codecs/cs42l52.c

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/*
* cs42l52.c -- CS42L52 ALSA SoC audio driver
*
* Copyright 2012 CirrusLogic, Inc.
*
* Author: Georgi Vlaev <joe@nucleusys.com>
* Author: Brian Austin <brian.austin@cirrus.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/of_gpio.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/platform_device.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 <sound/cs42l52.h>
#include "cs42l52.h"
struct sp_config {
u8 spc, format, spfs;
u32 srate;
};
struct cs42l52_private {
struct regmap *regmap;
struct snd_soc_codec *codec;
struct device *dev;
struct sp_config config;
struct cs42l52_platform_data pdata;
u32 sysclk;
u8 mclksel;
u32 mclk;
u8 flags;
struct input_dev *beep;
struct work_struct beep_work;
int beep_rate;
};
static const struct reg_default cs42l52_reg_defaults[] = {
{ CS42L52_PWRCTL1, 0x9F }, /* r02 PWRCTL 1 */
{ CS42L52_PWRCTL2, 0x07 }, /* r03 PWRCTL 2 */
{ CS42L52_PWRCTL3, 0xFF }, /* r04 PWRCTL 3 */
{ CS42L52_CLK_CTL, 0xA0 }, /* r05 Clocking Ctl */
{ CS42L52_IFACE_CTL1, 0x00 }, /* r06 Interface Ctl 1 */
{ CS42L52_ADC_PGA_A, 0x80 }, /* r08 Input A Select */
{ CS42L52_ADC_PGA_B, 0x80 }, /* r09 Input B Select */
{ CS42L52_ANALOG_HPF_CTL, 0xA5 }, /* r0A Analog HPF Ctl */
{ CS42L52_ADC_HPF_FREQ, 0x00 }, /* r0B ADC HPF Corner Freq */
{ CS42L52_ADC_MISC_CTL, 0x00 }, /* r0C Misc. ADC Ctl */
{ CS42L52_PB_CTL1, 0x60 }, /* r0D Playback Ctl 1 */
{ CS42L52_MISC_CTL, 0x02 }, /* r0E Misc. Ctl */
{ CS42L52_PB_CTL2, 0x00 }, /* r0F Playback Ctl 2 */
{ CS42L52_MICA_CTL, 0x00 }, /* r10 MICA Amp Ctl */
{ CS42L52_MICB_CTL, 0x00 }, /* r11 MICB Amp Ctl */
{ CS42L52_PGAA_CTL, 0x00 }, /* r12 PGAA Vol, Misc. */
{ CS42L52_PGAB_CTL, 0x00 }, /* r13 PGAB Vol, Misc. */
{ CS42L52_PASSTHRUA_VOL, 0x00 }, /* r14 Bypass A Vol */
{ CS42L52_PASSTHRUB_VOL, 0x00 }, /* r15 Bypass B Vol */
{ CS42L52_ADCA_VOL, 0x00 }, /* r16 ADCA Volume */
{ CS42L52_ADCB_VOL, 0x00 }, /* r17 ADCB Volume */
{ CS42L52_ADCA_MIXER_VOL, 0x80 }, /* r18 ADCA Mixer Volume */
{ CS42L52_ADCB_MIXER_VOL, 0x80 }, /* r19 ADCB Mixer Volume */
{ CS42L52_PCMA_MIXER_VOL, 0x00 }, /* r1A PCMA Mixer Volume */
{ CS42L52_PCMB_MIXER_VOL, 0x00 }, /* r1B PCMB Mixer Volume */
{ CS42L52_BEEP_FREQ, 0x00 }, /* r1C Beep Freq on Time */
{ CS42L52_BEEP_VOL, 0x00 }, /* r1D Beep Volume off Time */
{ CS42L52_BEEP_TONE_CTL, 0x00 }, /* r1E Beep Tone Cfg. */
{ CS42L52_TONE_CTL, 0x00 }, /* r1F Tone Ctl */
{ CS42L52_MASTERA_VOL, 0x00 }, /* r20 Master A Volume */
{ CS42L52_MASTERB_VOL, 0x00 }, /* r21 Master B Volume */
{ CS42L52_HPA_VOL, 0x00 }, /* r22 Headphone A Volume */
{ CS42L52_HPB_VOL, 0x00 }, /* r23 Headphone B Volume */
{ CS42L52_SPKA_VOL, 0x00 }, /* r24 Speaker A Volume */
{ CS42L52_SPKB_VOL, 0x00 }, /* r25 Speaker B Volume */
{ CS42L52_ADC_PCM_MIXER, 0x00 }, /* r26 Channel Mixer and Swap */
{ CS42L52_LIMITER_CTL1, 0x00 }, /* r27 Limit Ctl 1 Thresholds */
{ CS42L52_LIMITER_CTL2, 0x7F }, /* r28 Limit Ctl 2 Release Rate */
{ CS42L52_LIMITER_AT_RATE, 0xC0 }, /* r29 Limiter Attack Rate */
{ CS42L52_ALC_CTL, 0x00 }, /* r2A ALC Ctl 1 Attack Rate */
{ CS42L52_ALC_RATE, 0x3F }, /* r2B ALC Release Rate */
{ CS42L52_ALC_THRESHOLD, 0x3f }, /* r2C ALC Thresholds */
{ CS42L52_NOISE_GATE_CTL, 0x00 }, /* r2D Noise Gate Ctl */
{ CS42L52_CLK_STATUS, 0x00 }, /* r2E Overflow and Clock Status */
{ CS42L52_BATT_COMPEN, 0x00 }, /* r2F battery Compensation */
{ CS42L52_BATT_LEVEL, 0x00 }, /* r30 VP Battery Level */
{ CS42L52_SPK_STATUS, 0x00 }, /* r31 Speaker Status */
{ CS42L52_TEM_CTL, 0x3B }, /* r32 Temp Ctl */
{ CS42L52_THE_FOLDBACK, 0x00 }, /* r33 Foldback */
};
static bool cs42l52_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case CS42L52_CHIP ... CS42L52_CHARGE_PUMP:
return true;
default:
return false;
}
}
static bool cs42l52_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case CS42L52_IFACE_CTL2:
case CS42L52_CLK_STATUS:
case CS42L52_BATT_LEVEL:
case CS42L52_SPK_STATUS:
case CS42L52_CHARGE_PUMP:
return true;
default:
return false;
}
}
static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0);
static DECLARE_TLV_DB_SCALE(hpd_tlv, -9600, 50, 1);
static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0);
static DECLARE_TLV_DB_SCALE(mic_tlv, 1600, 100, 0);
static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0);
static DECLARE_TLV_DB_SCALE(mix_tlv, -50, 50, 0);
static DECLARE_TLV_DB_SCALE(beep_tlv, -56, 200, 0);
static const DECLARE_TLV_DB_RANGE(limiter_tlv,
0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0),
3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0)
);
static const char * const cs42l52_adca_text[] = {
"Input1A", "Input2A", "Input3A", "Input4A", "PGA Input Left"};
static const char * const cs42l52_adcb_text[] = {
"Input1B", "Input2B", "Input3B", "Input4B", "PGA Input Right"};
static SOC_ENUM_SINGLE_DECL(adca_enum,
CS42L52_ADC_PGA_A, 5, cs42l52_adca_text);
static SOC_ENUM_SINGLE_DECL(adcb_enum,
CS42L52_ADC_PGA_B, 5, cs42l52_adcb_text);
static const struct snd_kcontrol_new adca_mux =
SOC_DAPM_ENUM("Left ADC Input Capture Mux", adca_enum);
static const struct snd_kcontrol_new adcb_mux =
SOC_DAPM_ENUM("Right ADC Input Capture Mux", adcb_enum);
static const char * const mic_bias_level_text[] = {
"0.5 +VA", "0.6 +VA", "0.7 +VA",
"0.8 +VA", "0.83 +VA", "0.91 +VA"
};
static SOC_ENUM_SINGLE_DECL(mic_bias_level_enum,
CS42L52_IFACE_CTL2, 0, mic_bias_level_text);
static const char * const cs42l52_mic_text[] = { "MIC1", "MIC2" };
static SOC_ENUM_SINGLE_DECL(mica_enum,
CS42L52_MICA_CTL, 5, cs42l52_mic_text);
static SOC_ENUM_SINGLE_DECL(micb_enum,
CS42L52_MICB_CTL, 5, cs42l52_mic_text);
static const char * const digital_output_mux_text[] = {"ADC", "DSP"};
static SOC_ENUM_SINGLE_DECL(digital_output_mux_enum,
CS42L52_ADC_MISC_CTL, 6,
digital_output_mux_text);
static const struct snd_kcontrol_new digital_output_mux =
SOC_DAPM_ENUM("Digital Output Mux", digital_output_mux_enum);
static const char * const hp_gain_num_text[] = {
"0.3959", "0.4571", "0.5111", "0.6047",
"0.7099", "0.8399", "1.000", "1.1430"
};
static SOC_ENUM_SINGLE_DECL(hp_gain_enum,
CS42L52_PB_CTL1, 5,
hp_gain_num_text);
static const char * const beep_pitch_text[] = {
"C4", "C5", "D5", "E5", "F5", "G5", "A5", "B5",
"C6", "D6", "E6", "F6", "G6", "A6", "B6", "C7"
};
static SOC_ENUM_SINGLE_DECL(beep_pitch_enum,
CS42L52_BEEP_FREQ, 4,
beep_pitch_text);
static const char * const beep_ontime_text[] = {
"86 ms", "430 ms", "780 ms", "1.20 s", "1.50 s",
"1.80 s", "2.20 s", "2.50 s", "2.80 s", "3.20 s",
"3.50 s", "3.80 s", "4.20 s", "4.50 s", "4.80 s", "5.20 s"
};
static SOC_ENUM_SINGLE_DECL(beep_ontime_enum,
CS42L52_BEEP_FREQ, 0,
beep_ontime_text);
static const char * const beep_offtime_text[] = {
"1.23 s", "2.58 s", "3.90 s", "5.20 s",
"6.60 s", "8.05 s", "9.35 s", "10.80 s"
};
static SOC_ENUM_SINGLE_DECL(beep_offtime_enum,
CS42L52_BEEP_VOL, 5,
beep_offtime_text);
static const char * const beep_config_text[] = {
"Off", "Single", "Multiple", "Continuous"
};
static SOC_ENUM_SINGLE_DECL(beep_config_enum,
CS42L52_BEEP_TONE_CTL, 6,
beep_config_text);
static const char * const beep_bass_text[] = {
"50 Hz", "100 Hz", "200 Hz", "250 Hz"
};
static SOC_ENUM_SINGLE_DECL(beep_bass_enum,
CS42L52_BEEP_TONE_CTL, 1,
beep_bass_text);
static const char * const beep_treble_text[] = {
"5 kHz", "7 kHz", "10 kHz", " 15 kHz"
};
static SOC_ENUM_SINGLE_DECL(beep_treble_enum,
CS42L52_BEEP_TONE_CTL, 3,
beep_treble_text);
static const char * const ng_threshold_text[] = {
"-34dB", "-37dB", "-40dB", "-43dB",
"-46dB", "-52dB", "-58dB", "-64dB"
};
static SOC_ENUM_SINGLE_DECL(ng_threshold_enum,
CS42L52_NOISE_GATE_CTL, 2,
ng_threshold_text);
static const char * const cs42l52_ng_delay_text[] = {
"50ms", "100ms", "150ms", "200ms"};
static SOC_ENUM_SINGLE_DECL(ng_delay_enum,
CS42L52_NOISE_GATE_CTL, 0,
cs42l52_ng_delay_text);
static const char * const cs42l52_ng_type_text[] = {
"Apply Specific", "Apply All"
};
static SOC_ENUM_SINGLE_DECL(ng_type_enum,
CS42L52_NOISE_GATE_CTL, 6,
cs42l52_ng_type_text);
static const char * const left_swap_text[] = {
"Left", "LR 2", "Right"};
static const char * const right_swap_text[] = {
"Right", "LR 2", "Left"};
static const unsigned int swap_values[] = { 0, 1, 3 };
static const struct soc_enum adca_swap_enum =
SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 2, 3,
ARRAY_SIZE(left_swap_text),
left_swap_text,
swap_values);
static const struct snd_kcontrol_new adca_mixer =
SOC_DAPM_ENUM("Route", adca_swap_enum);
static const struct soc_enum pcma_swap_enum =
SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 6, 3,
ARRAY_SIZE(left_swap_text),
left_swap_text,
swap_values);
static const struct snd_kcontrol_new pcma_mixer =
SOC_DAPM_ENUM("Route", pcma_swap_enum);
static const struct soc_enum adcb_swap_enum =
SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 0, 3,
ARRAY_SIZE(right_swap_text),
right_swap_text,
swap_values);
static const struct snd_kcontrol_new adcb_mixer =
SOC_DAPM_ENUM("Route", adcb_swap_enum);
static const struct soc_enum pcmb_swap_enum =
SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 4, 3,
ARRAY_SIZE(right_swap_text),
right_swap_text,
swap_values);
static const struct snd_kcontrol_new pcmb_mixer =
SOC_DAPM_ENUM("Route", pcmb_swap_enum);
static const struct snd_kcontrol_new passthrul_ctl =
SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 6, 1, 0);
static const struct snd_kcontrol_new passthrur_ctl =
SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 7, 1, 0);
static const struct snd_kcontrol_new spkl_ctl =
SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 0, 1, 1);
static const struct snd_kcontrol_new spkr_ctl =
SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 2, 1, 1);
static const struct snd_kcontrol_new hpl_ctl =
SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 4, 1, 1);
static const struct snd_kcontrol_new hpr_ctl =
SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 6, 1, 1);
static const struct snd_kcontrol_new cs42l52_snd_controls[] = {
SOC_DOUBLE_R_SX_TLV("Master Volume", CS42L52_MASTERA_VOL,
CS42L52_MASTERB_VOL, 0, 0x34, 0xE4, hl_tlv),
SOC_DOUBLE_R_SX_TLV("Headphone Volume", CS42L52_HPA_VOL,
CS42L52_HPB_VOL, 0, 0x34, 0xC0, hpd_tlv),
SOC_ENUM("Headphone Analog Gain", hp_gain_enum),
SOC_DOUBLE_R_SX_TLV("Speaker Volume", CS42L52_SPKA_VOL,
CS42L52_SPKB_VOL, 0, 0x40, 0xC0, hl_tlv),
SOC_DOUBLE_R_SX_TLV("Bypass Volume", CS42L52_PASSTHRUA_VOL,
CS42L52_PASSTHRUB_VOL, 0, 0x88, 0x90, pga_tlv),
SOC_DOUBLE("Bypass Mute", CS42L52_MISC_CTL, 4, 5, 1, 0),
SOC_DOUBLE_R_TLV("MIC Gain Volume", CS42L52_MICA_CTL,
CS42L52_MICB_CTL, 0, 0x10, 0, mic_tlv),
SOC_ENUM("MIC Bias Level", mic_bias_level_enum),
SOC_DOUBLE_R_SX_TLV("ADC Volume", CS42L52_ADCA_VOL,
CS42L52_ADCB_VOL, 0, 0xA0, 0x78, ipd_tlv),
SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume",
CS42L52_ADCA_MIXER_VOL, CS42L52_ADCB_MIXER_VOL,
0, 0x19, 0x7F, ipd_tlv),
SOC_DOUBLE("ADC Switch", CS42L52_ADC_MISC_CTL, 0, 1, 1, 0),
SOC_DOUBLE_R("ADC Mixer Switch", CS42L52_ADCA_MIXER_VOL,
CS42L52_ADCB_MIXER_VOL, 7, 1, 1),
SOC_DOUBLE_R_SX_TLV("PGA Volume", CS42L52_PGAA_CTL,
CS42L52_PGAB_CTL, 0, 0x28, 0x24, pga_tlv),
SOC_DOUBLE_R_SX_TLV("PCM Mixer Volume",
CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL,
0, 0x19, 0x7f, mix_tlv),
SOC_DOUBLE_R("PCM Mixer Switch",
CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 7, 1, 1),
SOC_ENUM("Beep Config", beep_config_enum),
SOC_ENUM("Beep Pitch", beep_pitch_enum),
SOC_ENUM("Beep on Time", beep_ontime_enum),
SOC_ENUM("Beep off Time", beep_offtime_enum),
SOC_SINGLE_SX_TLV("Beep Volume", CS42L52_BEEP_VOL,
0, 0x07, 0x1f, beep_tlv),
SOC_SINGLE("Beep Mixer Switch", CS42L52_BEEP_TONE_CTL, 5, 1, 1),
SOC_ENUM("Beep Treble Corner Freq", beep_treble_enum),
SOC_ENUM("Beep Bass Corner Freq", beep_bass_enum),
SOC_SINGLE("Tone Control Switch", CS42L52_BEEP_TONE_CTL, 0, 1, 1),
SOC_SINGLE_TLV("Treble Gain Volume",
CS42L52_TONE_CTL, 4, 15, 1, hl_tlv),
SOC_SINGLE_TLV("Bass Gain Volume",
CS42L52_TONE_CTL, 0, 15, 1, hl_tlv),
/* Limiter */
SOC_SINGLE_TLV("Limiter Max Threshold Volume",
CS42L52_LIMITER_CTL1, 5, 7, 0, limiter_tlv),
SOC_SINGLE_TLV("Limiter Cushion Threshold Volume",
CS42L52_LIMITER_CTL1, 2, 7, 0, limiter_tlv),
SOC_SINGLE_TLV("Limiter Release Rate Volume",
CS42L52_LIMITER_CTL2, 0, 63, 0, limiter_tlv),
SOC_SINGLE_TLV("Limiter Attack Rate Volume",
CS42L52_LIMITER_AT_RATE, 0, 63, 0, limiter_tlv),
SOC_SINGLE("Limiter SR Switch", CS42L52_LIMITER_CTL1, 1, 1, 0),
SOC_SINGLE("Limiter ZC Switch", CS42L52_LIMITER_CTL1, 0, 1, 0),
SOC_SINGLE("Limiter Switch", CS42L52_LIMITER_CTL2, 7, 1, 0),
/* ALC */
SOC_SINGLE_TLV("ALC Attack Rate Volume", CS42L52_ALC_CTL,
0, 63, 0, limiter_tlv),
SOC_SINGLE_TLV("ALC Release Rate Volume", CS42L52_ALC_RATE,
0, 63, 0, limiter_tlv),
SOC_SINGLE_TLV("ALC Max Threshold Volume", CS42L52_ALC_THRESHOLD,
5, 7, 0, limiter_tlv),
SOC_SINGLE_TLV("ALC Min Threshold Volume", CS42L52_ALC_THRESHOLD,
2, 7, 0, limiter_tlv),
SOC_DOUBLE_R("ALC SR Capture Switch", CS42L52_PGAA_CTL,
CS42L52_PGAB_CTL, 7, 1, 1),
SOC_DOUBLE_R("ALC ZC Capture Switch", CS42L52_PGAA_CTL,
CS42L52_PGAB_CTL, 6, 1, 1),
SOC_DOUBLE("ALC Capture Switch", CS42L52_ALC_CTL, 6, 7, 1, 0),
/* Noise gate */
SOC_ENUM("NG Type Switch", ng_type_enum),
SOC_SINGLE("NG Enable Switch", CS42L52_NOISE_GATE_CTL, 6, 1, 0),
SOC_SINGLE("NG Boost Switch", CS42L52_NOISE_GATE_CTL, 5, 1, 1),
SOC_ENUM("NG Threshold", ng_threshold_enum),
SOC_ENUM("NG Delay", ng_delay_enum),
SOC_DOUBLE("HPF Switch", CS42L52_ANALOG_HPF_CTL, 5, 7, 1, 0),
SOC_DOUBLE("Analog SR Switch", CS42L52_ANALOG_HPF_CTL, 1, 3, 1, 1),
SOC_DOUBLE("Analog ZC Switch", CS42L52_ANALOG_HPF_CTL, 0, 2, 1, 1),
SOC_SINGLE("Digital SR Switch", CS42L52_MISC_CTL, 1, 1, 0),
SOC_SINGLE("Digital ZC Switch", CS42L52_MISC_CTL, 0, 1, 0),
SOC_SINGLE("Deemphasis Switch", CS42L52_MISC_CTL, 2, 1, 0),
SOC_SINGLE("Batt Compensation Switch", CS42L52_BATT_COMPEN, 7, 1, 0),
SOC_SINGLE("Batt VP Monitor Switch", CS42L52_BATT_COMPEN, 6, 1, 0),
SOC_SINGLE("Batt VP ref", CS42L52_BATT_COMPEN, 0, 0x0f, 0),
SOC_SINGLE("PGA AIN1L Switch", CS42L52_ADC_PGA_A, 0, 1, 0),
SOC_SINGLE("PGA AIN1R Switch", CS42L52_ADC_PGA_B, 0, 1, 0),
SOC_SINGLE("PGA AIN2L Switch", CS42L52_ADC_PGA_A, 1, 1, 0),
SOC_SINGLE("PGA AIN2R Switch", CS42L52_ADC_PGA_B, 1, 1, 0),
SOC_SINGLE("PGA AIN3L Switch", CS42L52_ADC_PGA_A, 2, 1, 0),
SOC_SINGLE("PGA AIN3R Switch", CS42L52_ADC_PGA_B, 2, 1, 0),
SOC_SINGLE("PGA AIN4L Switch", CS42L52_ADC_PGA_A, 3, 1, 0),
SOC_SINGLE("PGA AIN4R Switch", CS42L52_ADC_PGA_B, 3, 1, 0),
SOC_SINGLE("PGA MICA Switch", CS42L52_ADC_PGA_A, 4, 1, 0),
SOC_SINGLE("PGA MICB Switch", CS42L52_ADC_PGA_B, 4, 1, 0),
};
static const struct snd_kcontrol_new cs42l52_mica_controls[] = {
SOC_ENUM("MICA Select", mica_enum),
};
static const struct snd_kcontrol_new cs42l52_micb_controls[] = {
SOC_ENUM("MICB Select", micb_enum),
};
static int cs42l52_add_mic_controls(struct snd_soc_codec *codec)
{
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
struct cs42l52_platform_data *pdata = &cs42l52->pdata;
if (!pdata->mica_diff_cfg)
snd_soc_add_codec_controls(codec, cs42l52_mica_controls,
ARRAY_SIZE(cs42l52_mica_controls));
if (!pdata->micb_diff_cfg)
snd_soc_add_codec_controls(codec, cs42l52_micb_controls,
ARRAY_SIZE(cs42l52_micb_controls));
return 0;
}
static const struct snd_soc_dapm_widget cs42l52_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("AIN1L"),
SND_SOC_DAPM_INPUT("AIN1R"),
SND_SOC_DAPM_INPUT("AIN2L"),
SND_SOC_DAPM_INPUT("AIN2R"),
SND_SOC_DAPM_INPUT("AIN3L"),
SND_SOC_DAPM_INPUT("AIN3R"),
SND_SOC_DAPM_INPUT("AIN4L"),
SND_SOC_DAPM_INPUT("AIN4R"),
SND_SOC_DAPM_INPUT("MICA"),
SND_SOC_DAPM_INPUT("MICB"),
SND_SOC_DAPM_SIGGEN("Beep"),
SND_SOC_DAPM_AIF_OUT("AIFOUTL", NULL, 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("AIFOUTR", NULL, 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L52_PWRCTL1, 1, 1),
SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L52_PWRCTL1, 2, 1),
SND_SOC_DAPM_PGA("PGA Left", CS42L52_PWRCTL1, 3, 1, NULL, 0),
SND_SOC_DAPM_PGA("PGA Right", CS42L52_PWRCTL1, 4, 1, NULL, 0),
SND_SOC_DAPM_MUX("ADC Left Mux", SND_SOC_NOPM, 0, 0, &adca_mux),
SND_SOC_DAPM_MUX("ADC Right Mux", SND_SOC_NOPM, 0, 0, &adcb_mux),
SND_SOC_DAPM_MUX("ADC Left Swap", SND_SOC_NOPM,
0, 0, &adca_mixer),
SND_SOC_DAPM_MUX("ADC Right Swap", SND_SOC_NOPM,
0, 0, &adcb_mixer),
SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM,
0, 0, &digital_output_mux),
SND_SOC_DAPM_PGA("PGA MICA", CS42L52_PWRCTL2, 1, 1, NULL, 0),
SND_SOC_DAPM_PGA("PGA MICB", CS42L52_PWRCTL2, 2, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L52_PWRCTL2, 0, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("Charge Pump", CS42L52_PWRCTL1, 7, 1, NULL, 0),
SND_SOC_DAPM_AIF_IN("AIFINL", NULL, 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("AIFINR", NULL, 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC Left", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC Right", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_SWITCH("Bypass Left", CS42L52_MISC_CTL,
6, 0, &passthrul_ctl),
SND_SOC_DAPM_SWITCH("Bypass Right", CS42L52_MISC_CTL,
7, 0, &passthrur_ctl),
SND_SOC_DAPM_MUX("PCM Left Swap", SND_SOC_NOPM,
0, 0, &pcma_mixer),
SND_SOC_DAPM_MUX("PCM Right Swap", SND_SOC_NOPM,
0, 0, &pcmb_mixer),
SND_SOC_DAPM_SWITCH("HP Left Amp", SND_SOC_NOPM, 0, 0, &hpl_ctl),
SND_SOC_DAPM_SWITCH("HP Right Amp", SND_SOC_NOPM, 0, 0, &hpr_ctl),
SND_SOC_DAPM_SWITCH("SPK Left Amp", SND_SOC_NOPM, 0, 0, &spkl_ctl),
SND_SOC_DAPM_SWITCH("SPK Right Amp", SND_SOC_NOPM, 0, 0, &spkr_ctl),
SND_SOC_DAPM_OUTPUT("HPOUTA"),
SND_SOC_DAPM_OUTPUT("HPOUTB"),
SND_SOC_DAPM_OUTPUT("SPKOUTA"),
SND_SOC_DAPM_OUTPUT("SPKOUTB"),
};
static const struct snd_soc_dapm_route cs42l52_audio_map[] = {
{"Capture", NULL, "AIFOUTL"},
{"Capture", NULL, "AIFOUTL"},
{"AIFOUTL", NULL, "Output Mux"},
{"AIFOUTR", NULL, "Output Mux"},
{"Output Mux", "ADC", "ADC Left"},
{"Output Mux", "ADC", "ADC Right"},
{"ADC Left", NULL, "Charge Pump"},
{"ADC Right", NULL, "Charge Pump"},
{"Charge Pump", NULL, "ADC Left Mux"},
{"Charge Pump", NULL, "ADC Right Mux"},
{"ADC Left Mux", "Input1A", "AIN1L"},
{"ADC Right Mux", "Input1B", "AIN1R"},
{"ADC Left Mux", "Input2A", "AIN2L"},
{"ADC Right Mux", "Input2B", "AIN2R"},
{"ADC Left Mux", "Input3A", "AIN3L"},
{"ADC Right Mux", "Input3B", "AIN3R"},
{"ADC Left Mux", "Input4A", "AIN4L"},
{"ADC Right Mux", "Input4B", "AIN4R"},
{"ADC Left Mux", "PGA Input Left", "PGA Left"},
{"ADC Right Mux", "PGA Input Right" , "PGA Right"},
{"PGA Left", "Switch", "AIN1L"},
{"PGA Right", "Switch", "AIN1R"},
{"PGA Left", "Switch", "AIN2L"},
{"PGA Right", "Switch", "AIN2R"},
{"PGA Left", "Switch", "AIN3L"},
{"PGA Right", "Switch", "AIN3R"},
{"PGA Left", "Switch", "AIN4L"},
{"PGA Right", "Switch", "AIN4R"},
{"PGA Left", "Switch", "PGA MICA"},
{"PGA MICA", NULL, "MICA"},
{"PGA Right", "Switch", "PGA MICB"},
{"PGA MICB", NULL, "MICB"},
{"HPOUTA", NULL, "HP Left Amp"},
{"HPOUTB", NULL, "HP Right Amp"},
{"HP Left Amp", NULL, "Bypass Left"},
{"HP Right Amp", NULL, "Bypass Right"},
{"Bypass Left", "Switch", "PGA Left"},
{"Bypass Right", "Switch", "PGA Right"},
{"HP Left Amp", "Switch", "DAC Left"},
{"HP Right Amp", "Switch", "DAC Right"},
{"SPKOUTA", NULL, "SPK Left Amp"},
{"SPKOUTB", NULL, "SPK Right Amp"},
{"SPK Left Amp", NULL, "Beep"},
{"SPK Right Amp", NULL, "Beep"},
{"SPK Left Amp", "Switch", "Playback"},
{"SPK Right Amp", "Switch", "Playback"},
{"DAC Left", NULL, "Beep"},
{"DAC Right", NULL, "Beep"},
{"DAC Left", NULL, "Playback"},
{"DAC Right", NULL, "Playback"},
{"Output Mux", "DSP", "Playback"},
{"Output Mux", "DSP", "Playback"},
{"AIFINL", NULL, "Playback"},
{"AIFINR", NULL, "Playback"},
};
struct cs42l52_clk_para {
u32 mclk;
u32 rate;
u8 speed;
u8 group;
u8 videoclk;
u8 ratio;
u8 mclkdiv2;
};
static const struct cs42l52_clk_para clk_map_table[] = {
/*8k*/
{12288000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
{18432000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
{12000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0},
{24000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1},
{27000000, 8000, CLK_QS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0},
/*11.025k*/
{11289600, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{16934400, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
/*16k*/
{12288000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
{18432000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
{12000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0},
{24000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1},
{27000000, 16000, CLK_HS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 1},
/*22.05k*/
{11289600, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{16934400, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
/* 32k */
{12288000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
{18432000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
{12000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0},
{24000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1},
{27000000, 32000, CLK_SS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0},
/* 44.1k */
{11289600, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{16934400, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
/* 48k */
{12288000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{18432000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{12000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0},
{24000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1},
{27000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_27M_MCLK, CLK_R_125, 1},
/* 88.2k */
{11289600, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{16934400, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
/* 96k */
{12288000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{18432000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
{12000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0},
{24000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1},
};
static int cs42l52_get_clk(int mclk, int rate)
{
int i, ret = -EINVAL;
u_int mclk1, mclk2 = 0;
for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) {
if (clk_map_table[i].rate == rate) {
mclk1 = clk_map_table[i].mclk;
if (abs(mclk - mclk1) < abs(mclk - mclk2)) {
mclk2 = mclk1;
ret = i;
}
}
}
return ret;
}
static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) {
cs42l52->sysclk = freq;
} else {
dev_err(codec->dev, "Invalid freq parameter\n");
return -EINVAL;
}
return 0;
}
static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
u8 iface = 0;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
iface = CS42L52_IFACE_CTL1_MASTER;
break;
case SND_SOC_DAIFMT_CBS_CFS:
iface = CS42L52_IFACE_CTL1_SLAVE;
break;
default:
return -EINVAL;
}
/* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
iface |= CS42L52_IFACE_CTL1_ADC_FMT_I2S |
CS42L52_IFACE_CTL1_DAC_FMT_I2S;
break;
case SND_SOC_DAIFMT_RIGHT_J:
iface |= CS42L52_IFACE_CTL1_DAC_FMT_RIGHT_J;
break;
case SND_SOC_DAIFMT_LEFT_J:
iface |= CS42L52_IFACE_CTL1_ADC_FMT_LEFT_J |
CS42L52_IFACE_CTL1_DAC_FMT_LEFT_J;
break;
case SND_SOC_DAIFMT_DSP_A:
iface |= CS42L52_IFACE_CTL1_DSP_MODE_EN;
break;
case SND_SOC_DAIFMT_DSP_B:
break;
default:
return -EINVAL;
}
/* clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_IF:
iface |= CS42L52_IFACE_CTL1_INV_SCLK;
break;
case SND_SOC_DAIFMT_IB_NF:
iface |= CS42L52_IFACE_CTL1_INV_SCLK;
break;
case SND_SOC_DAIFMT_NB_IF:
break;
default:
return -EINVAL;
}
cs42l52->config.format = iface;
snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format);
return 0;
}
static int cs42l52_digital_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
if (mute)
snd_soc_update_bits(codec, CS42L52_PB_CTL1,
CS42L52_PB_CTL1_MUTE_MASK,
CS42L52_PB_CTL1_MUTE);
else
snd_soc_update_bits(codec, CS42L52_PB_CTL1,
CS42L52_PB_CTL1_MUTE_MASK,
CS42L52_PB_CTL1_UNMUTE);
return 0;
}
static int cs42l52_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
u32 clk = 0;
int index;
index = cs42l52_get_clk(cs42l52->sysclk, params_rate(params));
if (index >= 0) {
cs42l52->sysclk = clk_map_table[index].mclk;
clk |= (clk_map_table[index].speed << CLK_SPEED_SHIFT) |
(clk_map_table[index].group << CLK_32K_SR_SHIFT) |
(clk_map_table[index].videoclk << CLK_27M_MCLK_SHIFT) |
(clk_map_table[index].ratio << CLK_RATIO_SHIFT) |
clk_map_table[index].mclkdiv2;
snd_soc_write(codec, CS42L52_CLK_CTL, clk);
} else {
dev_err(codec->dev, "can't get correct mclk\n");
return -EINVAL;
}
return 0;
}
static int cs42l52_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
snd_soc_update_bits(codec, CS42L52_PWRCTL1,
CS42L52_PWRCTL1_PDN_CODEC, 0);
break;
case SND_SOC_BIAS_STANDBY:
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
regcache_cache_only(cs42l52->regmap, false);
regcache_sync(cs42l52->regmap);
}
snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL);
break;
case SND_SOC_BIAS_OFF:
snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL);
regcache_cache_only(cs42l52->regmap, true);
break;
}
return 0;
}
#define CS42L52_RATES (SNDRV_PCM_RATE_8000_96000)
#define CS42L52_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \
SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_U18_3LE | \
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE)
static const struct snd_soc_dai_ops cs42l52_ops = {
.hw_params = cs42l52_pcm_hw_params,
.digital_mute = cs42l52_digital_mute,
.set_fmt = cs42l52_set_fmt,
.set_sysclk = cs42l52_set_sysclk,
};
static struct snd_soc_dai_driver cs42l52_dai = {
.name = "cs42l52",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = CS42L52_RATES,
.formats = CS42L52_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = CS42L52_RATES,
.formats = CS42L52_FORMATS,
},
.ops = &cs42l52_ops,
};
static int beep_rates[] = {
261, 522, 585, 667, 706, 774, 889, 1000,
1043, 1200, 1333, 1412, 1600, 1714, 2000, 2182
};
static void cs42l52_beep_work(struct work_struct *work)
{
struct cs42l52_private *cs42l52 =
container_of(work, struct cs42l52_private, beep_work);
struct snd_soc_codec *codec = cs42l52->codec;
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
int i;
int val = 0;
int best = 0;
if (cs42l52->beep_rate) {
for (i = 0; i < ARRAY_SIZE(beep_rates); i++) {
if (abs(cs42l52->beep_rate - beep_rates[i]) <
abs(cs42l52->beep_rate - beep_rates[best]))
best = i;
}
dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n",
beep_rates[best], cs42l52->beep_rate);
val = (best << CS42L52_BEEP_RATE_SHIFT);
snd_soc_dapm_enable_pin(dapm, "Beep");
} else {
dev_dbg(codec->dev, "Disabling beep\n");
snd_soc_dapm_disable_pin(dapm, "Beep");
}
snd_soc_update_bits(codec, CS42L52_BEEP_FREQ,
CS42L52_BEEP_RATE_MASK, val);
snd_soc_dapm_sync(dapm);
}
/* For usability define a way of injecting beep events for the device -
* many systems will not have a keyboard.
*/
static int cs42l52_beep_event(struct input_dev *dev, unsigned int type,
unsigned int code, int hz)
{
struct snd_soc_codec *codec = input_get_drvdata(dev);
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
dev_dbg(codec->dev, "Beep event %x %x\n", code, hz);
switch (code) {
case SND_BELL:
if (hz)
hz = 261;
case SND_TONE:
break;
default:
return -1;
}
/* Kick the beep from a workqueue */
cs42l52->beep_rate = hz;
schedule_work(&cs42l52->beep_work);
return 0;
}
static ssize_t cs42l52_beep_set(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct cs42l52_private *cs42l52 = dev_get_drvdata(dev);
long int time;
int ret;
ret = kstrtol(buf, 10, &time);
if (ret != 0)
return ret;
input_event(cs42l52->beep, EV_SND, SND_TONE, time);
return count;
}
static DEVICE_ATTR(beep, 0200, NULL, cs42l52_beep_set);
static void cs42l52_init_beep(struct snd_soc_codec *codec)
{
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
int ret;
cs42l52->beep = devm_input_allocate_device(codec->dev);
if (!cs42l52->beep) {
dev_err(codec->dev, "Failed to allocate beep device\n");
return;
}
INIT_WORK(&cs42l52->beep_work, cs42l52_beep_work);
cs42l52->beep_rate = 0;
cs42l52->beep->name = "CS42L52 Beep Generator";
cs42l52->beep->phys = dev_name(codec->dev);
cs42l52->beep->id.bustype = BUS_I2C;
cs42l52->beep->evbit[0] = BIT_MASK(EV_SND);
cs42l52->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
cs42l52->beep->event = cs42l52_beep_event;
cs42l52->beep->dev.parent = codec->dev;
input_set_drvdata(cs42l52->beep, codec);
ret = input_register_device(cs42l52->beep);
if (ret != 0) {
cs42l52->beep = NULL;
dev_err(codec->dev, "Failed to register beep device\n");
}
ret = device_create_file(codec->dev, &dev_attr_beep);
if (ret != 0) {
dev_err(codec->dev, "Failed to create keyclick file: %d\n",
ret);
}
}
static void cs42l52_free_beep(struct snd_soc_codec *codec)
{
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
device_remove_file(codec->dev, &dev_attr_beep);
cancel_work_sync(&cs42l52->beep_work);
cs42l52->beep = NULL;
snd_soc_update_bits(codec, CS42L52_BEEP_TONE_CTL,
CS42L52_BEEP_EN_MASK, 0);
}
static int cs42l52_probe(struct snd_soc_codec *codec)
{
struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
regcache_cache_only(cs42l52->regmap, true);
cs42l52_add_mic_controls(codec);
cs42l52_init_beep(codec);
cs42l52->sysclk = CS42L52_DEFAULT_CLK;
cs42l52->config.format = CS42L52_DEFAULT_FORMAT;
return 0;
}
static int cs42l52_remove(struct snd_soc_codec *codec)
{
cs42l52_free_beep(codec);
return 0;
}
static const struct snd_soc_codec_driver soc_codec_dev_cs42l52 = {
.probe = cs42l52_probe,
.remove = cs42l52_remove,
.set_bias_level = cs42l52_set_bias_level,
.suspend_bias_off = true,
.dapm_widgets = cs42l52_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(cs42l52_dapm_widgets),
.dapm_routes = cs42l52_audio_map,
.num_dapm_routes = ARRAY_SIZE(cs42l52_audio_map),
.controls = cs42l52_snd_controls,
.num_controls = ARRAY_SIZE(cs42l52_snd_controls),
};
/* Current and threshold powerup sequence Pg37 */
static const struct reg_sequence cs42l52_threshold_patch[] = {
{ 0x00, 0x99 },
{ 0x3E, 0xBA },
{ 0x47, 0x80 },
{ 0x32, 0xBB },
{ 0x32, 0x3B },
{ 0x00, 0x00 },
};
static const struct regmap_config cs42l52_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = CS42L52_MAX_REGISTER,
.reg_defaults = cs42l52_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(cs42l52_reg_defaults),
.readable_reg = cs42l52_readable_register,
.volatile_reg = cs42l52_volatile_register,
.cache_type = REGCACHE_RBTREE,
};
static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
const struct i2c_device_id *id)
{
struct cs42l52_private *cs42l52;
struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev);
int ret;
unsigned int devid = 0;
unsigned int reg;
u32 val32;
cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private),
GFP_KERNEL);
if (cs42l52 == NULL)
return -ENOMEM;
cs42l52->dev = &i2c_client->dev;
cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap);
if (IS_ERR(cs42l52->regmap)) {
ret = PTR_ERR(cs42l52->regmap);
dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
return ret;
}
if (pdata) {
cs42l52->pdata = *pdata;
} else {
pdata = devm_kzalloc(&i2c_client->dev,
sizeof(struct cs42l52_platform_data),
GFP_KERNEL);
if (!pdata) {
dev_err(&i2c_client->dev, "could not allocate pdata\n");
return -ENOMEM;
}
if (i2c_client->dev.of_node) {
if (of_property_read_bool(i2c_client->dev.of_node,
"cirrus,mica-differential-cfg"))
pdata->mica_diff_cfg = true;
if (of_property_read_bool(i2c_client->dev.of_node,
"cirrus,micb-differential-cfg"))
pdata->micb_diff_cfg = true;
if (of_property_read_u32(i2c_client->dev.of_node,
"cirrus,micbias-lvl", &val32) >= 0)
pdata->micbias_lvl = val32;
if (of_property_read_u32(i2c_client->dev.of_node,
"cirrus,chgfreq-divisor", &val32) >= 0)
pdata->chgfreq = val32;
pdata->reset_gpio =
of_get_named_gpio(i2c_client->dev.of_node,
"cirrus,reset-gpio", 0);
}
cs42l52->pdata = *pdata;
}
if (cs42l52->pdata.reset_gpio) {
ret = devm_gpio_request_one(&i2c_client->dev,
cs42l52->pdata.reset_gpio,
GPIOF_OUT_INIT_HIGH,
"CS42L52 /RST");
if (ret < 0) {
dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n",
cs42l52->pdata.reset_gpio, ret);
return ret;
}
gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0);
gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1);
}
i2c_set_clientdata(i2c_client, cs42l52);
ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch,
ARRAY_SIZE(cs42l52_threshold_patch));
if (ret != 0)
dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n",
ret);
ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, &reg);
devid = reg & CS42L52_CHIP_ID_MASK;
if (devid != CS42L52_CHIP_ID) {
ret = -ENODEV;
dev_err(&i2c_client->dev,
"CS42L52 Device ID (%X). Expected %X\n",
devid, CS42L52_CHIP_ID);
return ret;
}
dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n",
reg & CS42L52_CHIP_REV_MASK);
/* Set Platform Data */
if (cs42l52->pdata.mica_diff_cfg)
regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL,
CS42L52_MIC_CTL_TYPE_MASK,
cs42l52->pdata.mica_diff_cfg <<
CS42L52_MIC_CTL_TYPE_SHIFT);
if (cs42l52->pdata.micb_diff_cfg)
regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL,
CS42L52_MIC_CTL_TYPE_MASK,
cs42l52->pdata.micb_diff_cfg <<
CS42L52_MIC_CTL_TYPE_SHIFT);
if (cs42l52->pdata.chgfreq)
regmap_update_bits(cs42l52->regmap, CS42L52_CHARGE_PUMP,
CS42L52_CHARGE_PUMP_MASK,
cs42l52->pdata.chgfreq <<
CS42L52_CHARGE_PUMP_SHIFT);
if (cs42l52->pdata.micbias_lvl)
regmap_update_bits(cs42l52->regmap, CS42L52_IFACE_CTL2,
CS42L52_IFACE_CTL2_BIAS_LVL,
cs42l52->pdata.micbias_lvl);
ret = snd_soc_register_codec(&i2c_client->dev,
&soc_codec_dev_cs42l52, &cs42l52_dai, 1);
if (ret < 0)
return ret;
return 0;
}
static int cs42l52_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
return 0;
}
static const struct of_device_id cs42l52_of_match[] = {
{ .compatible = "cirrus,cs42l52", },
{},
};
MODULE_DEVICE_TABLE(of, cs42l52_of_match);
static const struct i2c_device_id cs42l52_id[] = {
{ "cs42l52", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, cs42l52_id);
static struct i2c_driver cs42l52_i2c_driver = {
.driver = {
.name = "cs42l52",
.of_match_table = cs42l52_of_match,
},
.id_table = cs42l52_id,
.probe = cs42l52_i2c_probe,
.remove = cs42l52_i2c_remove,
};
module_i2c_driver(cs42l52_i2c_driver);
MODULE_DESCRIPTION("ASoC CS42L52 driver");
MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>");
MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
MODULE_LICENSE("GPL");
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