// SPDX-License-Identifier: GPL-2.0-only
/*
* wm8904 . c - - WM8904 ALSA SoC Audio driver
*
* Copyright 2009 - 12 Wolfson Microelectronics plc
*
* Author : Mark Brown < broonie @ opensource . wolfsonmicro . com >
*/
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.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>
#include <sound/wm8904.h>
#include "wm8904.h"
enum wm8904_type {
WM8904,
WM8912,
};
#define WM8904_NUM_DCS_CHANNELS 4
#define WM8904_NUM_SUPPLIES 5
static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = {
"DCVDD" ,
"DBVDD" ,
"AVDD" ,
"CPVDD" ,
"MICVDD" ,
};
/* codec private data */
struct wm8904_priv {
struct regmap *regmap;
struct clk *mclk;
enum wm8904_type devtype;
struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES];
struct wm8904_pdata *pdata;
int deemph;
/* Platform provided DRC configuration */
const char **drc_texts;
int drc_cfg;
struct soc_enum drc_enum;
/* Platform provided ReTune mobile configuration */
int num_retune_mobile_texts;
const char **retune_mobile_texts;
int retune_mobile_cfg;
struct soc_enum retune_mobile_enum;
/* FLL setup */
int fll_src;
int fll_fref;
int fll_fout;
/* Clocking configuration */
unsigned int mclk_rate;
int sysclk_src;
unsigned int sysclk_rate;
int tdm_width;
int tdm_slots;
int bclk;
int fs;
/* DC servo configuration - cached offset values */
int dcs_state[WM8904_NUM_DCS_CHANNELS];
};
static const struct reg_default wm8904_reg_defaults[] = {
{ 4 , 0 x0018 }, /* R4 - Bias Control 0 */
{ 5 , 0 x0000 }, /* R5 - VMID Control 0 */
{ 6 , 0 x0000 }, /* R6 - Mic Bias Control 0 */
{ 7 , 0 x0000 }, /* R7 - Mic Bias Control 1 */
{ 8 , 0 x0001 }, /* R8 - Analogue DAC 0 */
{ 9 , 0 x9696 }, /* R9 - mic Filter Control */
{ 10 , 0 x0001 }, /* R10 - Analogue ADC 0 */
{ 12 , 0 x0000 }, /* R12 - Power Management 0 */
{ 14 , 0 x0000 }, /* R14 - Power Management 2 */
{ 15 , 0 x0000 }, /* R15 - Power Management 3 */
{ 18 , 0 x0000 }, /* R18 - Power Management 6 */
{ 20 , 0 x945E }, /* R20 - Clock Rates 0 */
{ 21 , 0 x0C05 }, /* R21 - Clock Rates 1 */
{ 22 , 0 x0006 }, /* R22 - Clock Rates 2 */
{ 24 , 0 x0050 }, /* R24 - Audio Interface 0 */
{ 25 , 0 x000A }, /* R25 - Audio Interface 1 */
{ 26 , 0 x00E4 }, /* R26 - Audio Interface 2 */
{ 27 , 0 x0040 }, /* R27 - Audio Interface 3 */
{ 30 , 0 x00C0 }, /* R30 - DAC Digital Volume Left */
{ 31 , 0 x00C0 }, /* R31 - DAC Digital Volume Right */
{ 32 , 0 x0000 }, /* R32 - DAC Digital 0 */
{ 33 , 0 x0008 }, /* R33 - DAC Digital 1 */
{ 36 , 0 x00C0 }, /* R36 - ADC Digital Volume Left */
{ 37 , 0 x00C0 }, /* R37 - ADC Digital Volume Right */
{ 38 , 0 x0010 }, /* R38 - ADC Digital 0 */
{ 39 , 0 x0000 }, /* R39 - Digital Microphone 0 */
{ 40 , 0 x01AF }, /* R40 - DRC 0 */
{ 41 , 0 x3248 }, /* R41 - DRC 1 */
{ 42 , 0 x0000 }, /* R42 - DRC 2 */
{ 43 , 0 x0000 }, /* R43 - DRC 3 */
{ 44 , 0 x0085 }, /* R44 - Analogue Left Input 0 */
{ 45 , 0 x0085 }, /* R45 - Analogue Right Input 0 */
{ 46 , 0 x0044 }, /* R46 - Analogue Left Input 1 */
{ 47 , 0 x0044 }, /* R47 - Analogue Right Input 1 */
{ 57 , 0 x002D }, /* R57 - Analogue OUT1 Left */
{ 58 , 0 x002D }, /* R58 - Analogue OUT1 Right */
{ 59 , 0 x0039 }, /* R59 - Analogue OUT2 Left */
{ 60 , 0 x0039 }, /* R60 - Analogue OUT2 Right */
{ 61 , 0 x0000 }, /* R61 - Analogue OUT12 ZC */
{ 67 , 0 x0000 }, /* R67 - DC Servo 0 */
{ 69 , 0 xAAAA }, /* R69 - DC Servo 2 */
{ 71 , 0 xAAAA }, /* R71 - DC Servo 4 */
{ 72 , 0 xAAAA }, /* R72 - DC Servo 5 */
{ 90 , 0 x0000 }, /* R90 - Analogue HP 0 */
{ 94 , 0 x0000 }, /* R94 - Analogue Lineout 0 */
{ 98 , 0 x0000 }, /* R98 - Charge Pump 0 */
{ 104 , 0 x0004 }, /* R104 - Class W 0 */
{ 108 , 0 x0000 }, /* R108 - Write Sequencer 0 */
{ 109 , 0 x0000 }, /* R109 - Write Sequencer 1 */
{ 110 , 0 x0000 }, /* R110 - Write Sequencer 2 */
{ 111 , 0 x0000 }, /* R111 - Write Sequencer 3 */
{ 112 , 0 x0000 }, /* R112 - Write Sequencer 4 */
{ 116 , 0 x0000 }, /* R116 - FLL Control 1 */
{ 117 , 0 x0007 }, /* R117 - FLL Control 2 */
{ 118 , 0 x0000 }, /* R118 - FLL Control 3 */
{ 119 , 0 x2EE0 }, /* R119 - FLL Control 4 */
{ 120 , 0 x0004 }, /* R120 - FLL Control 5 */
{ 121 , 0 x0014 }, /* R121 - GPIO Control 1 */
{ 122 , 0 x0010 }, /* R122 - GPIO Control 2 */
{ 123 , 0 x0010 }, /* R123 - GPIO Control 3 */
{ 124 , 0 x0000 }, /* R124 - GPIO Control 4 */
{ 126 , 0 x0000 }, /* R126 - Digital Pulls */
{ 128 , 0 xFFFF }, /* R128 - Interrupt Status Mask */
{ 129 , 0 x0000 }, /* R129 - Interrupt Polarity */
{ 130 , 0 x0000 }, /* R130 - Interrupt Debounce */
{ 134 , 0 x0000 }, /* R134 - EQ1 */
{ 135 , 0 x000C }, /* R135 - EQ2 */
{ 136 , 0 x000C }, /* R136 - EQ3 */
{ 137 , 0 x000C }, /* R137 - EQ4 */
{ 138 , 0 x000C }, /* R138 - EQ5 */
{ 139 , 0 x000C }, /* R139 - EQ6 */
{ 140 , 0 x0FCA }, /* R140 - EQ7 */
{ 141 , 0 x0400 }, /* R141 - EQ8 */
{ 142 , 0 x00D8 }, /* R142 - EQ9 */
{ 143 , 0 x1EB5 }, /* R143 - EQ10 */
{ 144 , 0 xF145 }, /* R144 - EQ11 */
{ 145 , 0 x0B75 }, /* R145 - EQ12 */
{ 146 , 0 x01C5 }, /* R146 - EQ13 */
{ 147 , 0 x1C58 }, /* R147 - EQ14 */
{ 148 , 0 xF373 }, /* R148 - EQ15 */
{ 149 , 0 x0A54 }, /* R149 - EQ16 */
{ 150 , 0 x0558 }, /* R150 - EQ17 */
{ 151 , 0 x168E }, /* R151 - EQ18 */
{ 152 , 0 xF829 }, /* R152 - EQ19 */
{ 153 , 0 x07AD }, /* R153 - EQ20 */
{ 154 , 0 x1103 }, /* R154 - EQ21 */
{ 155 , 0 x0564 }, /* R155 - EQ22 */
{ 156 , 0 x0559 }, /* R156 - EQ23 */
{ 157 , 0 x4000 }, /* R157 - EQ24 */
{ 161 , 0 x0000 }, /* R161 - Control Interface Test 1 */
{ 204 , 0 x0000 }, /* R204 - Analogue Output Bias 0 */
{ 247 , 0 x0000 }, /* R247 - FLL NCO Test 0 */
{ 248 , 0 x0019 }, /* R248 - FLL NCO Test 1 */
};
static bool wm8904_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8904_SW_RESET_AND_ID:
case WM8904_REVISION:
case WM8904_DC_SERVO_1:
case WM8904_DC_SERVO_6:
case WM8904_DC_SERVO_7:
case WM8904_DC_SERVO_8:
case WM8904_DC_SERVO_9:
case WM8904_DC_SERVO_READBACK_0:
case WM8904_INTERRUPT_STATUS:
return true ;
default :
return false ;
}
}
static bool wm8904_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8904_SW_RESET_AND_ID:
case WM8904_REVISION:
case WM8904_BIAS_CONTROL_0:
case WM8904_VMID_CONTROL_0:
case WM8904_MIC_BIAS_CONTROL_0:
case WM8904_MIC_BIAS_CONTROL_1:
case WM8904_ANALOGUE_DAC_0:
case WM8904_MIC_FILTER_CONTROL:
case WM8904_ANALOGUE_ADC_0:
case WM8904_POWER_MANAGEMENT_0:
case WM8904_POWER_MANAGEMENT_2:
case WM8904_POWER_MANAGEMENT_3:
case WM8904_POWER_MANAGEMENT_6:
case WM8904_CLOCK_RATES_0:
case WM8904_CLOCK_RATES_1:
case WM8904_CLOCK_RATES_2:
case WM8904_AUDIO_INTERFACE_0:
case WM8904_AUDIO_INTERFACE_1:
case WM8904_AUDIO_INTERFACE_2:
case WM8904_AUDIO_INTERFACE_3:
case WM8904_DAC_DIGITAL_VOLUME_LEFT:
case WM8904_DAC_DIGITAL_VOLUME_RIGHT:
case WM8904_DAC_DIGITAL_0:
case WM8904_DAC_DIGITAL_1:
case WM8904_ADC_DIGITAL_VOLUME_LEFT:
case WM8904_ADC_DIGITAL_VOLUME_RIGHT:
case WM8904_ADC_DIGITAL_0:
case WM8904_DIGITAL_MICROPHONE_0:
case WM8904_DRC_0:
case WM8904_DRC_1:
case WM8904_DRC_2:
case WM8904_DRC_3:
case WM8904_ANALOGUE_LEFT_INPUT_0:
case WM8904_ANALOGUE_RIGHT_INPUT_0:
case WM8904_ANALOGUE_LEFT_INPUT_1:
case WM8904_ANALOGUE_RIGHT_INPUT_1:
case WM8904_ANALOGUE_OUT1_LEFT:
case WM8904_ANALOGUE_OUT1_RIGHT:
case WM8904_ANALOGUE_OUT2_LEFT:
case WM8904_ANALOGUE_OUT2_RIGHT:
case WM8904_ANALOGUE_OUT12_ZC:
case WM8904_DC_SERVO_0:
case WM8904_DC_SERVO_1:
case WM8904_DC_SERVO_2:
case WM8904_DC_SERVO_4:
case WM8904_DC_SERVO_5:
case WM8904_DC_SERVO_6:
case WM8904_DC_SERVO_7:
case WM8904_DC_SERVO_8:
case WM8904_DC_SERVO_9:
case WM8904_DC_SERVO_READBACK_0:
case WM8904_ANALOGUE_HP_0:
case WM8904_ANALOGUE_LINEOUT_0:
case WM8904_CHARGE_PUMP_0:
case WM8904_CLASS_W_0:
case WM8904_WRITE_SEQUENCER_0:
case WM8904_WRITE_SEQUENCER_1:
case WM8904_WRITE_SEQUENCER_2:
case WM8904_WRITE_SEQUENCER_3:
case WM8904_WRITE_SEQUENCER_4:
case WM8904_FLL_CONTROL_1:
case WM8904_FLL_CONTROL_2:
case WM8904_FLL_CONTROL_3:
case WM8904_FLL_CONTROL_4:
case WM8904_FLL_CONTROL_5:
case WM8904_GPIO_CONTROL_1:
case WM8904_GPIO_CONTROL_2:
case WM8904_GPIO_CONTROL_3:
case WM8904_GPIO_CONTROL_4:
case WM8904_DIGITAL_PULLS:
case WM8904_INTERRUPT_STATUS:
case WM8904_INTERRUPT_STATUS_MASK:
case WM8904_INTERRUPT_POLARITY:
case WM8904_INTERRUPT_DEBOUNCE:
case WM8904_EQ1:
case WM8904_EQ2:
case WM8904_EQ3:
case WM8904_EQ4:
case WM8904_EQ5:
case WM8904_EQ6:
case WM8904_EQ7:
case WM8904_EQ8:
case WM8904_EQ9:
case WM8904_EQ10:
case WM8904_EQ11:
case WM8904_EQ12:
case WM8904_EQ13:
case WM8904_EQ14:
case WM8904_EQ15:
case WM8904_EQ16:
case WM8904_EQ17:
case WM8904_EQ18:
case WM8904_EQ19:
case WM8904_EQ20:
case WM8904_EQ21:
case WM8904_EQ22:
case WM8904_EQ23:
case WM8904_EQ24:
case WM8904_CONTROL_INTERFACE_TEST_1:
case WM8904_ADC_TEST_0:
case WM8904_ANALOGUE_OUTPUT_BIAS_0:
case WM8904_FLL_NCO_TEST_0:
case WM8904_FLL_NCO_TEST_1:
return true ;
default :
return false ;
}
}
static int wm8904_configure_clocking(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
unsigned int clock0, clock2, rate;
/* Gate the clock while we're updating to avoid misclocking */
clock2 = snd_soc_component_read(component, WM8904_CLOCK_RATES_2);
snd_soc_component_update_bits(component, WM8904_CLOCK_RATES_2,
WM8904_SYSCLK_SRC, 0 );
/* This should be done on init() for bypass paths */
switch (wm8904->sysclk_src) {
case WM8904_CLK_MCLK:
dev_dbg(component->dev, "Using %dHz MCLK\n" , wm8904->mclk_rate);
clock2 &= ~WM8904_SYSCLK_SRC;
rate = wm8904->mclk_rate;
/* Ensure the FLL is stopped */
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0 );
break ;
case WM8904_CLK_FLL:
dev_dbg(component->dev, "Using %dHz FLL clock\n" ,
wm8904->fll_fout);
clock2 |= WM8904_SYSCLK_SRC;
rate = wm8904->fll_fout;
break ;
default :
dev_err(component->dev, "System clock not configured\n" );
return -EINVAL;
}
/* SYSCLK shouldn't be over 13.5MHz */
if (rate > 13500000 ) {
clock0 = WM8904_MCLK_DIV;
wm8904->sysclk_rate = rate / 2 ;
} else {
clock0 = 0 ;
wm8904->sysclk_rate = rate;
}
snd_soc_component_update_bits(component, WM8904_CLOCK_RATES_0, WM8904_MCLK_DIV,
clock0);
snd_soc_component_update_bits(component, WM8904_CLOCK_RATES_2,
WM8904_CLK_SYS_ENA | WM8904_SYSCLK_SRC, clock2);
dev_dbg(component->dev, "CLK_SYS is %dHz\n" , wm8904->sysclk_rate);
return 0 ;
}
static void wm8904_set_drc(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct wm8904_pdata *pdata = wm8904->pdata;
int save, i;
/* Save any enables; the configuration should clear them. */
save = snd_soc_component_read(component, WM8904_DRC_0);
for (i = 0 ; i < WM8904_DRC_REGS; i++)
snd_soc_component_update_bits(component, WM8904_DRC_0 + i, 0 xffff,
pdata->drc_cfgs[wm8904->drc_cfg].regs[i]);
/* Reenable the DRC */
snd_soc_component_update_bits(component, WM8904_DRC_0,
WM8904_DRC_ENA | WM8904_DRC_DAC_PATH, save);
}
static int wm8904_put_drc_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct wm8904_pdata *pdata = wm8904->pdata;
int value = ucontrol->value.enumerated.item[0 ];
if (value >= pdata->num_drc_cfgs)
return -EINVAL;
wm8904->drc_cfg = value;
wm8904_set_drc(component);
return 0 ;
}
static int wm8904_get_drc_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
ucontrol->value.enumerated.item[0 ] = wm8904->drc_cfg;
return 0 ;
}
static void wm8904_set_retune_mobile(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct wm8904_pdata *pdata = wm8904->pdata;
int best, best_val, save, i, cfg;
if (!pdata || !wm8904->num_retune_mobile_texts)
return ;
/* Find the version of the currently selected configuration
* with the nearest sample rate. */
cfg = wm8904->retune_mobile_cfg;
best = 0 ;
best_val = INT_MAX;
for (i = 0 ; i < pdata->num_retune_mobile_cfgs; i++) {
if (strcmp(pdata->retune_mobile_cfgs[i].name,
wm8904->retune_mobile_texts[cfg]) == 0 &&
abs(pdata->retune_mobile_cfgs[i].rate
- wm8904->fs) < best_val) {
best = i;
best_val = abs(pdata->retune_mobile_cfgs[i].rate
- wm8904->fs);
}
}
dev_dbg(component->dev, "ReTune Mobile %s/%dHz for %dHz sample rate\n" ,
pdata->retune_mobile_cfgs[best].name,
pdata->retune_mobile_cfgs[best].rate,
wm8904->fs);
/* The EQ will be disabled while reconfiguring it, remember the
* current configuration .
*/
save = snd_soc_component_read(component, WM8904_EQ1);
for (i = 0 ; i < WM8904_EQ_REGS; i++)
snd_soc_component_update_bits(component, WM8904_EQ1 + i, 0 xffff,
pdata->retune_mobile_cfgs[best].regs[i]);
snd_soc_component_update_bits(component, WM8904_EQ1, WM8904_EQ_ENA, save);
}
static int wm8904_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct wm8904_pdata *pdata = wm8904->pdata;
int value = ucontrol->value.enumerated.item[0 ];
if (value >= pdata->num_retune_mobile_cfgs)
return -EINVAL;
wm8904->retune_mobile_cfg = value;
wm8904_set_retune_mobile(component);
return 0 ;
}
static int wm8904_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
ucontrol->value.enumerated.item[0 ] = wm8904->retune_mobile_cfg;
return 0 ;
}
static int deemph_settings[] = { 0 , 32000 , 44100 , 48000 };
static int wm8904_set_deemph(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
int val, i, best;
/* If we're using deemphasis select the nearest available sample
* rate .
*/
if (wm8904->deemph) {
best = 1 ;
for (i = 2 ; i < ARRAY_SIZE(deemph_settings); i++) {
if (abs(deemph_settings[i] - wm8904->fs) <
abs(deemph_settings[best] - wm8904->fs))
best = i;
}
val = best << WM8904_DEEMPH_SHIFT;
} else {
val = 0 ;
}
dev_dbg(component->dev, "Set deemphasis %d\n" , val);
return snd_soc_component_update_bits(component, WM8904_DAC_DIGITAL_1,
WM8904_DEEMPH_MASK, val);
}
static int wm8904_get_deemph(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0 ] = wm8904->deemph;
return 0 ;
}
static int wm8904_put_deemph(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
unsigned int deemph = ucontrol->value.integer.value[0 ];
if (deemph > 1 )
return -EINVAL;
wm8904->deemph = deemph;
return wm8904_set_deemph(component);
}
static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0 , 600 , 0 );
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200 , 75 , 1 );
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700 , 100 , 0 );
static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600 , 300 , 0 );
static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200 , 100 , 0 );
static const char *hpf_mode_text[] = {
"Hi-fi" , "Voice 1" , "Voice 2" , "Voice 3"
};
static SOC_ENUM_SINGLE_DECL(hpf_mode, WM8904_ADC_DIGITAL_0, 5 ,
hpf_mode_text);
static int wm8904_adc_osr_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
unsigned int val;
int ret;
ret = snd_soc_put_volsw(kcontrol, ucontrol);
if (ret < 0 )
return ret;
if (ucontrol->value.integer.value[0 ])
val = 0 ;
else
val = WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5;
snd_soc_component_update_bits(component, WM8904_ADC_TEST_0,
WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5,
val);
return ret;
}
static const struct snd_kcontrol_new wm8904_adc_snd_controls[] = {
SOC_DOUBLE_R_TLV("Digital Capture Volume" , WM8904_ADC_DIGITAL_VOLUME_LEFT,
WM8904_ADC_DIGITAL_VOLUME_RIGHT, 1 , 119 , 0 , digital_tlv),
/* No TLV since it depends on mode */
SOC_DOUBLE_R("Capture Volume" , WM8904_ANALOGUE_LEFT_INPUT_0,
WM8904_ANALOGUE_RIGHT_INPUT_0, 0 , 31 , 0 ),
SOC_DOUBLE_R("Capture Switch" , WM8904_ANALOGUE_LEFT_INPUT_0,
WM8904_ANALOGUE_RIGHT_INPUT_0, 7 , 1 , 1 ),
SOC_SINGLE("High Pass Filter Switch" , WM8904_ADC_DIGITAL_0, 4 , 1 , 0 ),
SOC_ENUM("High Pass Filter Mode" , hpf_mode),
SOC_SINGLE_EXT("ADC 128x OSR Switch" , WM8904_ANALOGUE_ADC_0, 0 , 1 , 0 ,
snd_soc_get_volsw, wm8904_adc_osr_put),
};
static const char *drc_path_text[] = {
"ADC" , "DAC"
};
static SOC_ENUM_SINGLE_DECL(drc_path, WM8904_DRC_0, 14 , drc_path_text);
static const struct snd_kcontrol_new wm8904_dac_snd_controls[] = {
SOC_SINGLE_TLV("Digital Playback Boost Volume" ,
WM8904_AUDIO_INTERFACE_0, 9 , 3 , 0 , dac_boost_tlv),
SOC_DOUBLE_R_TLV("Digital Playback Volume" , WM8904_DAC_DIGITAL_VOLUME_LEFT,
WM8904_DAC_DIGITAL_VOLUME_RIGHT, 1 , 96 , 0 , digital_tlv),
SOC_DOUBLE_R_TLV("Headphone Volume" , WM8904_ANALOGUE_OUT1_LEFT,
WM8904_ANALOGUE_OUT1_RIGHT, 0 , 63 , 0 , out_tlv),
SOC_DOUBLE_R("Headphone Switch" , WM8904_ANALOGUE_OUT1_LEFT,
WM8904_ANALOGUE_OUT1_RIGHT, 8 , 1 , 1 ),
SOC_DOUBLE_R("Headphone ZC Switch" , WM8904_ANALOGUE_OUT1_LEFT,
WM8904_ANALOGUE_OUT1_RIGHT, 6 , 1 , 0 ),
SOC_DOUBLE_R_TLV("Line Output Volume" , WM8904_ANALOGUE_OUT2_LEFT,
WM8904_ANALOGUE_OUT2_RIGHT, 0 , 63 , 0 , out_tlv),
SOC_DOUBLE_R("Line Output Switch" , WM8904_ANALOGUE_OUT2_LEFT,
WM8904_ANALOGUE_OUT2_RIGHT, 8 , 1 , 1 ),
SOC_DOUBLE_R("Line Output ZC Switch" , WM8904_ANALOGUE_OUT2_LEFT,
WM8904_ANALOGUE_OUT2_RIGHT, 6 , 1 , 0 ),
SOC_SINGLE("EQ Switch" , WM8904_EQ1, 0 , 1 , 0 ),
SOC_SINGLE("DRC Switch" , WM8904_DRC_0, 15 , 1 , 0 ),
SOC_ENUM("DRC Path" , drc_path),
SOC_SINGLE("DAC OSRx2 Switch" , WM8904_DAC_DIGITAL_1, 6 , 1 , 0 ),
SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch" , 0 ,
wm8904_get_deemph, wm8904_put_deemph),
};
static const struct snd_kcontrol_new wm8904_snd_controls[] = {
SOC_DOUBLE_TLV("Digital Sidetone Volume" , WM8904_DAC_DIGITAL_0, 4 , 8 , 15 , 0 ,
sidetone_tlv),
};
static const struct snd_kcontrol_new wm8904_eq_controls[] = {
SOC_SINGLE_TLV("EQ1 Volume" , WM8904_EQ2, 0 , 24 , 0 , eq_tlv),
SOC_SINGLE_TLV("EQ2 Volume" , WM8904_EQ3, 0 , 24 , 0 , eq_tlv),
SOC_SINGLE_TLV("EQ3 Volume" , WM8904_EQ4, 0 , 24 , 0 , eq_tlv),
SOC_SINGLE_TLV("EQ4 Volume" , WM8904_EQ5, 0 , 24 , 0 , eq_tlv),
SOC_SINGLE_TLV("EQ5 Volume" , WM8904_EQ6, 0 , 24 , 0 , eq_tlv),
};
static int cp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
if (WARN_ON(event != SND_SOC_DAPM_POST_PMU))
return -EINVAL;
/* Maximum startup time */
udelay(500 );
return 0 ;
}
static int sysclk_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 wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* If we're using the FLL then we only start it when
* required ; we assume that the configuration has been
* done previously and all we need to do is kick it
* off .
*/
switch (wm8904->sysclk_src) {
case WM8904_CLK_FLL:
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_OSC_ENA,
WM8904_FLL_OSC_ENA);
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_ENA,
WM8904_FLL_ENA);
break ;
default :
break ;
}
break ;
case SND_SOC_DAPM_POST_PMD:
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0 );
break ;
}
return 0 ;
}
static int out_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 wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
int reg, val;
int dcs_mask;
int dcs_l, dcs_r;
int dcs_l_reg, dcs_r_reg;
int an_out_reg;
int timeout;
int pwr_reg;
/* This code is shared between HP and LINEOUT; we do all our
* power management in stereo pairs to avoid latency issues so
* we reuse shift to identify which rather than strcmp ( ) the
* name. */
reg = w->shift;
switch (reg) {
case WM8904_ANALOGUE_HP_0:
pwr_reg = WM8904_POWER_MANAGEMENT_2;
dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1;
dcs_r_reg = WM8904_DC_SERVO_8;
dcs_l_reg = WM8904_DC_SERVO_9;
an_out_reg = WM8904_ANALOGUE_OUT1_LEFT;
dcs_l = 0 ;
dcs_r = 1 ;
break ;
case WM8904_ANALOGUE_LINEOUT_0:
pwr_reg = WM8904_POWER_MANAGEMENT_3;
dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3;
dcs_r_reg = WM8904_DC_SERVO_6;
dcs_l_reg = WM8904_DC_SERVO_7;
an_out_reg = WM8904_ANALOGUE_OUT2_LEFT;
dcs_l = 2 ;
dcs_r = 3 ;
break ;
default :
WARN(1 , "Invalid reg %d\n" , reg);
return -EINVAL;
}
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* Power on the PGAs */
snd_soc_component_update_bits(component, pwr_reg,
WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA);
/* Power on the amplifier */
snd_soc_component_update_bits(component, reg,
WM8904_HPL_ENA | WM8904_HPR_ENA,
WM8904_HPL_ENA | WM8904_HPR_ENA);
/* Enable the first stage */
snd_soc_component_update_bits(component, reg,
WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY,
WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY);
/* Power up the DC servo */
snd_soc_component_update_bits(component, WM8904_DC_SERVO_0,
dcs_mask, dcs_mask);
/* Either calibrate the DC servo or restore cached state
* if we have that .
*/
if (wm8904->dcs_state[dcs_l] || wm8904->dcs_state[dcs_r]) {
dev_dbg(component->dev, "Restoring DC servo state\n" );
snd_soc_component_write(component, dcs_l_reg,
wm8904->dcs_state[dcs_l]);
snd_soc_component_write(component, dcs_r_reg,
wm8904->dcs_state[dcs_r]);
snd_soc_component_write(component, WM8904_DC_SERVO_1, dcs_mask);
timeout = 20 ;
} else {
dev_dbg(component->dev, "Calibrating DC servo\n" );
snd_soc_component_write(component, WM8904_DC_SERVO_1,
dcs_mask << WM8904_DCS_TRIG_STARTUP_0_SHIFT);
timeout = 500 ;
}
/* Wait for DC servo to complete */
dcs_mask <<= WM8904_DCS_CAL_COMPLETE_SHIFT;
do {
val = snd_soc_component_read(component, WM8904_DC_SERVO_READBACK_0);
if ((val & dcs_mask) == dcs_mask)
break ;
msleep(1 );
} while (--timeout);
if ((val & dcs_mask) != dcs_mask)
dev_warn(component->dev, "DC servo timed out\n" );
else
dev_dbg(component->dev, "DC servo ready\n" );
/* Enable the output stage */
snd_soc_component_update_bits(component, reg,
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP);
/* Update volume, requires PGA to be powered */
val = snd_soc_component_read(component, an_out_reg);
snd_soc_component_write(component, an_out_reg, val);
break ;
case SND_SOC_DAPM_POST_PMU:
/* Unshort the output itself */
snd_soc_component_update_bits(component, reg,
WM8904_HPL_RMV_SHORT |
WM8904_HPR_RMV_SHORT,
WM8904_HPL_RMV_SHORT |
WM8904_HPR_RMV_SHORT);
break ;
case SND_SOC_DAPM_PRE_PMD:
/* Short the output */
snd_soc_component_update_bits(component, reg,
WM8904_HPL_RMV_SHORT |
WM8904_HPR_RMV_SHORT, 0 );
break ;
case SND_SOC_DAPM_POST_PMD:
/* Cache the DC servo configuration; this will be
* invalidated if we change the configuration. */
wm8904->dcs_state[dcs_l] = snd_soc_component_read(component, dcs_l_reg);
wm8904->dcs_state[dcs_r] = snd_soc_component_read(component, dcs_r_reg);
snd_soc_component_update_bits(component, WM8904_DC_SERVO_0,
dcs_mask, 0 );
/* Disable the amplifier input and output stages */
snd_soc_component_update_bits(component, reg,
WM8904_HPL_ENA | WM8904_HPR_ENA |
WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY |
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
0 );
/* PGAs too */
snd_soc_component_update_bits(component, pwr_reg,
WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
0 );
break ;
}
return 0 ;
}
static const char * const dmic_text[] = {
"DMIC1" , "DMIC2"
};
static SOC_ENUM_SINGLE_DECL(dmic_enum, WM8904_DIGITAL_MICROPHONE_0,
WM8904_DMIC_SRC_SHIFT, dmic_text);
static const struct snd_kcontrol_new dmic_mux =
SOC_DAPM_ENUM("DMIC Mux" , dmic_enum);
static const char * const cin_text[] = {
"ADC" , "DMIC"
};
static SOC_ENUM_SINGLE_DECL(cin_enum, WM8904_DIGITAL_MICROPHONE_0,
WM8904_DMIC_ENA_SHIFT, cin_text);
static const struct snd_kcontrol_new cin_mux =
SOC_DAPM_ENUM("Capture Input" , cin_enum);
static const char *input_mode_text[] = {
"Single-Ended" , "Differential Line" , "Differential Mic"
};
static const char *lin_text[] = {
"IN1L" , "IN2L" , "IN3L"
};
static SOC_ENUM_SINGLE_DECL(lin_enum, WM8904_ANALOGUE_LEFT_INPUT_1, 2 ,
lin_text);
static const struct snd_kcontrol_new lin_mux =
SOC_DAPM_ENUM("Left Capture Mux" , lin_enum);
static SOC_ENUM_SINGLE_DECL(lin_inv_enum, WM8904_ANALOGUE_LEFT_INPUT_1, 4 ,
lin_text);
static const struct snd_kcontrol_new lin_inv_mux =
SOC_DAPM_ENUM("Left Capture Inverting Mux" , lin_inv_enum);
static SOC_ENUM_SINGLE_DECL(lin_mode_enum,
WM8904_ANALOGUE_LEFT_INPUT_1, 0 ,
input_mode_text);
static const struct snd_kcontrol_new lin_mode =
SOC_DAPM_ENUM("Left Capture Mode" , lin_mode_enum);
static const char *rin_text[] = {
"IN1R" , "IN2R" , "IN3R"
};
static SOC_ENUM_SINGLE_DECL(rin_enum, WM8904_ANALOGUE_RIGHT_INPUT_1, 2 ,
rin_text);
static const struct snd_kcontrol_new rin_mux =
SOC_DAPM_ENUM("Right Capture Mux" , rin_enum);
static SOC_ENUM_SINGLE_DECL(rin_inv_enum, WM8904_ANALOGUE_RIGHT_INPUT_1, 4 ,
rin_text);
static const struct snd_kcontrol_new rin_inv_mux =
SOC_DAPM_ENUM("Right Capture Inverting Mux" , rin_inv_enum);
static SOC_ENUM_SINGLE_DECL(rin_mode_enum,
WM8904_ANALOGUE_RIGHT_INPUT_1, 0 ,
input_mode_text);
static const struct snd_kcontrol_new rin_mode =
SOC_DAPM_ENUM("Right Capture Mode" , rin_mode_enum);
static const char *aif_text[] = {
"Left" , "Right"
};
static SOC_ENUM_SINGLE_DECL(aifoutl_enum, WM8904_AUDIO_INTERFACE_0, 7 ,
aif_text);
static const struct snd_kcontrol_new aifoutl_mux =
SOC_DAPM_ENUM("AIFOUTL Mux" , aifoutl_enum);
static SOC_ENUM_SINGLE_DECL(aifoutr_enum, WM8904_AUDIO_INTERFACE_0, 6 ,
aif_text);
static const struct snd_kcontrol_new aifoutr_mux =
SOC_DAPM_ENUM("AIFOUTR Mux" , aifoutr_enum);
static SOC_ENUM_SINGLE_DECL(aifinl_enum, WM8904_AUDIO_INTERFACE_0, 5 ,
aif_text);
static const struct snd_kcontrol_new aifinl_mux =
SOC_DAPM_ENUM("AIFINL Mux" , aifinl_enum);
static SOC_ENUM_SINGLE_DECL(aifinr_enum, WM8904_AUDIO_INTERFACE_0, 4 ,
aif_text);
static const struct snd_kcontrol_new aifinr_mux =
SOC_DAPM_ENUM("AIFINR Mux" , aifinr_enum);
static const struct snd_soc_dapm_widget wm8904_core_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("SYSCLK" , WM8904_CLOCK_RATES_2, 2 , 0 , sysclk_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("CLK_DSP" , WM8904_CLOCK_RATES_2, 1 , 0 , NULL, 0 ),
SND_SOC_DAPM_SUPPLY("TOCLK" , WM8904_CLOCK_RATES_2, 0 , 0 , NULL, 0 ),
};
static const struct snd_soc_dapm_widget wm8904_adc_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("IN1L" ),
SND_SOC_DAPM_INPUT("IN1R" ),
SND_SOC_DAPM_INPUT("IN2L" ),
SND_SOC_DAPM_INPUT("IN2R" ),
SND_SOC_DAPM_INPUT("IN3L" ),
SND_SOC_DAPM_INPUT("IN3R" ),
SND_SOC_DAPM_SUPPLY("MICBIAS" , WM8904_MIC_BIAS_CONTROL_0, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_MUX("Left Capture Mux" , SND_SOC_NOPM, 0 , 0 , &lin_mux),
SND_SOC_DAPM_MUX("Left Capture Inverting Mux" , SND_SOC_NOPM, 0 , 0 ,
&lin_inv_mux),
SND_SOC_DAPM_MUX("Left Capture Mode" , SND_SOC_NOPM, 0 , 0 , &lin_mode),
SND_SOC_DAPM_MUX("Right Capture Mux" , SND_SOC_NOPM, 0 , 0 , &rin_mux),
SND_SOC_DAPM_MUX("Right Capture Inverting Mux" , SND_SOC_NOPM, 0 , 0 ,
&rin_inv_mux),
SND_SOC_DAPM_MUX("Right Capture Mode" , SND_SOC_NOPM, 0 , 0 , &rin_mode),
SND_SOC_DAPM_PGA("Left Capture PGA" , WM8904_POWER_MANAGEMENT_0, 1 , 0 ,
NULL, 0 ),
SND_SOC_DAPM_PGA("Right Capture PGA" , WM8904_POWER_MANAGEMENT_0, 0 , 0 ,
NULL, 0 ),
SND_SOC_DAPM_ADC("ADCL" , NULL, WM8904_POWER_MANAGEMENT_6, 1 , 0 ),
SND_SOC_DAPM_ADC("ADCR" , NULL, WM8904_POWER_MANAGEMENT_6, 0 , 0 ),
SND_SOC_DAPM_MUX("AIFOUTL Mux" , SND_SOC_NOPM, 0 , 0 , &aifoutl_mux),
SND_SOC_DAPM_MUX("AIFOUTR Mux" , SND_SOC_NOPM, 0 , 0 , &aifoutr_mux),
SND_SOC_DAPM_AIF_OUT("AIFOUTL" , "Capture" , 0 , SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_AIF_OUT("AIFOUTR" , "Capture" , 1 , SND_SOC_NOPM, 0 , 0 ),
};
static const struct snd_soc_dapm_widget wm8904_dmic_dapm_widgets[] = {
SND_SOC_DAPM_MUX("DMIC Mux" , SND_SOC_NOPM, 0 , 0 , &dmic_mux),
};
static const struct snd_soc_dapm_widget wm8904_cin_dapm_widgets[] = {
SND_SOC_DAPM_MUX("Left Capture Input" , SND_SOC_NOPM, 0 , 0 , &cin_mux),
SND_SOC_DAPM_MUX("Right Capture Input" , SND_SOC_NOPM, 0 , 0 , &cin_mux),
};
static const struct snd_soc_dapm_widget wm8904_dac_dapm_widgets[] = {
SND_SOC_DAPM_AIF_IN("AIFINL" , "Playback" , 0 , SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_AIF_IN("AIFINR" , "Playback" , 1 , SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_MUX("DACL Mux" , SND_SOC_NOPM, 0 , 0 , &aifinl_mux),
SND_SOC_DAPM_MUX("DACR Mux" , SND_SOC_NOPM, 0 , 0 , &aifinr_mux),
SND_SOC_DAPM_DAC("DACL" , NULL, WM8904_POWER_MANAGEMENT_6, 3 , 0 ),
SND_SOC_DAPM_DAC("DACR" , NULL, WM8904_POWER_MANAGEMENT_6, 2 , 0 ),
SND_SOC_DAPM_SUPPLY("Charge pump" , WM8904_CHARGE_PUMP_0, 0 , 0 , cp_event,
SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_PGA("HPL PGA" , SND_SOC_NOPM, 1 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA("HPR PGA" , SND_SOC_NOPM, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA("LINEL PGA" , SND_SOC_NOPM, 1 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA("LINER PGA" , SND_SOC_NOPM, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA_E("Headphone Output" , SND_SOC_NOPM, WM8904_ANALOGUE_HP_0,
0 , NULL, 0 , out_pga_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_PGA_E("Line Output" , SND_SOC_NOPM, WM8904_ANALOGUE_LINEOUT_0,
0 , NULL, 0 , out_pga_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_OUTPUT("HPOUTL" ),
SND_SOC_DAPM_OUTPUT("HPOUTR" ),
SND_SOC_DAPM_OUTPUT("LINEOUTL" ),
SND_SOC_DAPM_OUTPUT("LINEOUTR" ),
};
static const char *out_mux_text[] = {
"DAC" , "Bypass"
};
static SOC_ENUM_SINGLE_DECL(hpl_enum, WM8904_ANALOGUE_OUT12_ZC, 3 ,
out_mux_text);
static const struct snd_kcontrol_new hpl_mux =
SOC_DAPM_ENUM("HPL Mux" , hpl_enum);
static SOC_ENUM_SINGLE_DECL(hpr_enum, WM8904_ANALOGUE_OUT12_ZC, 2 ,
out_mux_text);
static const struct snd_kcontrol_new hpr_mux =
SOC_DAPM_ENUM("HPR Mux" , hpr_enum);
static SOC_ENUM_SINGLE_DECL(linel_enum, WM8904_ANALOGUE_OUT12_ZC, 1 ,
out_mux_text);
static const struct snd_kcontrol_new linel_mux =
SOC_DAPM_ENUM("LINEL Mux" , linel_enum);
static SOC_ENUM_SINGLE_DECL(liner_enum, WM8904_ANALOGUE_OUT12_ZC, 0 ,
out_mux_text);
static const struct snd_kcontrol_new liner_mux =
SOC_DAPM_ENUM("LINER Mux" , liner_enum);
static const char *sidetone_text[] = {
"None" , "Left" , "Right"
};
static SOC_ENUM_SINGLE_DECL(dacl_sidetone_enum, WM8904_DAC_DIGITAL_0, 2 ,
sidetone_text);
static const struct snd_kcontrol_new dacl_sidetone_mux =
SOC_DAPM_ENUM("Left Sidetone Mux" , dacl_sidetone_enum);
static SOC_ENUM_SINGLE_DECL(dacr_sidetone_enum, WM8904_DAC_DIGITAL_0, 0 ,
sidetone_text);
static const struct snd_kcontrol_new dacr_sidetone_mux =
SOC_DAPM_ENUM("Right Sidetone Mux" , dacr_sidetone_enum);
static const struct snd_soc_dapm_widget wm8904_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("Class G" , WM8904_CLASS_W_0, 0 , 1 , NULL, 0 ),
SND_SOC_DAPM_PGA("Left Bypass" , SND_SOC_NOPM, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_PGA("Right Bypass" , SND_SOC_NOPM, 0 , 0 , NULL, 0 ),
SND_SOC_DAPM_MUX("Left Sidetone" , SND_SOC_NOPM, 0 , 0 , &dacl_sidetone_mux),
SND_SOC_DAPM_MUX("Right Sidetone" , SND_SOC_NOPM, 0 , 0 , &dacr_sidetone_mux),
SND_SOC_DAPM_MUX("HPL Mux" , SND_SOC_NOPM, 0 , 0 , &hpl_mux),
SND_SOC_DAPM_MUX("HPR Mux" , SND_SOC_NOPM, 0 , 0 , &hpr_mux),
SND_SOC_DAPM_MUX("LINEL Mux" , SND_SOC_NOPM, 0 , 0 , &linel_mux),
SND_SOC_DAPM_MUX("LINER Mux" , SND_SOC_NOPM, 0 , 0 , &liner_mux),
};
static const struct snd_soc_dapm_route core_intercon[] = {
{ "CLK_DSP" , NULL, "SYSCLK" },
{ "TOCLK" , NULL, "SYSCLK" },
};
static const struct snd_soc_dapm_route adc_intercon[] = {
{ "Left Capture Mux" , "IN1L" , "IN1L" },
{ "Left Capture Mux" , "IN2L" , "IN2L" },
{ "Left Capture Mux" , "IN3L" , "IN3L" },
{ "Left Capture Inverting Mux" , "IN1L" , "IN1L" },
{ "Left Capture Inverting Mux" , "IN2L" , "IN2L" },
{ "Left Capture Inverting Mux" , "IN3L" , "IN3L" },
{ "Left Capture Mode" , "Single-Ended" , "Left Capture Inverting Mux" },
{ "Left Capture Mode" , "Differential Line" , "Left Capture Mux" },
{ "Left Capture Mode" , "Differential Line" , "Left Capture Inverting Mux" },
{ "Left Capture Mode" , "Differential Mic" , "Left Capture Mux" },
{ "Left Capture Mode" , "Differential Mic" , "Left Capture Inverting Mux" },
{ "Right Capture Mux" , "IN1R" , "IN1R" },
{ "Right Capture Mux" , "IN2R" , "IN2R" },
{ "Right Capture Mux" , "IN3R" , "IN3R" },
{ "Right Capture Inverting Mux" , "IN1R" , "IN1R" },
{ "Right Capture Inverting Mux" , "IN2R" , "IN2R" },
{ "Right Capture Inverting Mux" , "IN3R" , "IN3R" },
{ "Right Capture Mode" , "Single-Ended" , "Right Capture Inverting Mux" },
{ "Right Capture Mode" , "Differential Line" , "Right Capture Mux" },
{ "Right Capture Mode" , "Differential Line" , "Right Capture Inverting Mux" },
{ "Right Capture Mode" , "Differential Mic" , "Right Capture Mux" },
{ "Right Capture Mode" , "Differential Mic" , "Right Capture Inverting Mux" },
{ "Left Capture PGA" , NULL, "Left Capture Mode" },
{ "Right Capture PGA" , NULL, "Right Capture Mode" },
{ "AIFOUTL Mux" , "Left" , "ADCL" },
{ "AIFOUTL Mux" , "Right" , "ADCR" },
{ "AIFOUTR Mux" , "Left" , "ADCL" },
{ "AIFOUTR Mux" , "Right" , "ADCR" },
{ "AIFOUTL" , NULL, "AIFOUTL Mux" },
{ "AIFOUTR" , NULL, "AIFOUTR Mux" },
{ "ADCL" , NULL, "CLK_DSP" },
{ "ADCR" , NULL, "CLK_DSP" },
};
/* No DMICs, always connect PGAs */
static const struct snd_soc_dapm_route cin_nodmic_con[] = {
{ "ADCL" , NULL, "Left Capture PGA" },
{ "ADCR" , NULL, "Right Capture PGA" },
};
/* DMIC system in use: mux between ADC and DMICDAT1, 2 or both */
static const struct snd_soc_dapm_route cin_adc_dmic_con[] = {
{ "Left Capture Input" , "ADC" , "Left Capture PGA" },
{ "Right Capture Input" , "ADC" , "Right Capture PGA" },
{ "ADCL" , NULL, "Left Capture Input" },
{ "ADCR" , NULL, "Right Capture Input" },
};
/* IN1L as DMICDAT1 */
static const struct snd_soc_dapm_route cin_dmic1_con[] = {
{ "Left Capture Input" , "DMIC" , "IN1L" },
{ "Right Capture Input" , "DMIC" , "IN1L" },
};
/* IN1R as DMICDAT2 */
static const struct snd_soc_dapm_route cin_dmic2_con[] = {
{ "Left Capture Input" , "DMIC" , "IN1R" },
{ "Right Capture Input" , "DMIC" , "IN1R" },
};
/* DMICDAT1 and DMICDAT2: mux between them, ADC still used for IN2 and IN3 */
static const struct snd_soc_dapm_route cin_2dmics_con[] = {
{ "DMIC Mux" , "DMIC1" , "IN1L" },
{ "DMIC Mux" , "DMIC2" , "IN1R" },
{ "Left Capture Input" , "DMIC" , "DMIC Mux" },
{ "Right Capture Input" , "DMIC" , "DMIC Mux" },
};
static const struct snd_soc_dapm_route dac_intercon[] = {
{ "DACL Mux" , "Left" , "AIFINL" },
{ "DACL Mux" , "Right" , "AIFINR" },
{ "DACR Mux" , "Left" , "AIFINL" },
{ "DACR Mux" , "Right" , "AIFINR" },
{ "DACL" , NULL, "DACL Mux" },
{ "DACL" , NULL, "CLK_DSP" },
{ "DACR" , NULL, "DACR Mux" },
{ "DACR" , NULL, "CLK_DSP" },
{ "Charge pump" , NULL, "SYSCLK" },
{ "Headphone Output" , NULL, "HPL PGA" },
{ "Headphone Output" , NULL, "HPR PGA" },
{ "Headphone Output" , NULL, "Charge pump" },
{ "Headphone Output" , NULL, "TOCLK" },
{ "Line Output" , NULL, "LINEL PGA" },
{ "Line Output" , NULL, "LINER PGA" },
{ "Line Output" , NULL, "Charge pump" },
{ "Line Output" , NULL, "TOCLK" },
{ "HPOUTL" , NULL, "Headphone Output" },
{ "HPOUTR" , NULL, "Headphone Output" },
{ "LINEOUTL" , NULL, "Line Output" },
{ "LINEOUTR" , NULL, "Line Output" },
};
static const struct snd_soc_dapm_route wm8904_intercon[] = {
{ "Left Sidetone" , "Left" , "ADCL" },
{ "Left Sidetone" , "Right" , "ADCR" },
{ "DACL" , NULL, "Left Sidetone" },
{ "Right Sidetone" , "Left" , "ADCL" },
{ "Right Sidetone" , "Right" , "ADCR" },
{ "DACR" , NULL, "Right Sidetone" },
{ "Left Bypass" , NULL, "Class G" },
{ "Left Bypass" , NULL, "Left Capture PGA" },
{ "Right Bypass" , NULL, "Class G" },
{ "Right Bypass" , NULL, "Right Capture PGA" },
{ "HPL Mux" , "DAC" , "DACL" },
{ "HPL Mux" , "Bypass" , "Left Bypass" },
{ "HPR Mux" , "DAC" , "DACR" },
{ "HPR Mux" , "Bypass" , "Right Bypass" },
{ "LINEL Mux" , "DAC" , "DACL" },
{ "LINEL Mux" , "Bypass" , "Left Bypass" },
{ "LINER Mux" , "DAC" , "DACR" },
{ "LINER Mux" , "Bypass" , "Right Bypass" },
{ "HPL PGA" , NULL, "HPL Mux" },
{ "HPR PGA" , NULL, "HPR Mux" },
{ "LINEL PGA" , NULL, "LINEL Mux" },
{ "LINER PGA" , NULL, "LINER Mux" },
};
static const struct snd_soc_dapm_route wm8912_intercon[] = {
{ "HPL PGA" , NULL, "DACL" },
{ "HPR PGA" , NULL, "DACR" },
{ "LINEL PGA" , NULL, "DACL" },
{ "LINER PGA" , NULL, "DACR" },
};
static int wm8904_add_widgets(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
snd_soc_dapm_new_controls(dapm, wm8904_core_dapm_widgets,
ARRAY_SIZE(wm8904_core_dapm_widgets));
snd_soc_dapm_add_routes(dapm, core_intercon,
ARRAY_SIZE(core_intercon));
switch (wm8904->devtype) {
case WM8904:
snd_soc_add_component_controls(component, wm8904_adc_snd_controls,
ARRAY_SIZE(wm8904_adc_snd_controls));
snd_soc_add_component_controls(component, wm8904_dac_snd_controls,
ARRAY_SIZE(wm8904_dac_snd_controls));
snd_soc_add_component_controls(component, wm8904_snd_controls,
ARRAY_SIZE(wm8904_snd_controls));
snd_soc_dapm_new_controls(dapm, wm8904_adc_dapm_widgets,
ARRAY_SIZE(wm8904_adc_dapm_widgets));
snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
ARRAY_SIZE(wm8904_dac_dapm_widgets));
snd_soc_dapm_new_controls(dapm, wm8904_dapm_widgets,
ARRAY_SIZE(wm8904_dapm_widgets));
snd_soc_dapm_add_routes(dapm, adc_intercon,
ARRAY_SIZE(adc_intercon));
snd_soc_dapm_add_routes(dapm, dac_intercon,
ARRAY_SIZE(dac_intercon));
snd_soc_dapm_add_routes(dapm, wm8904_intercon,
ARRAY_SIZE(wm8904_intercon));
break ;
case WM8912:
snd_soc_add_component_controls(component, wm8904_dac_snd_controls,
ARRAY_SIZE(wm8904_dac_snd_controls));
snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
ARRAY_SIZE(wm8904_dac_dapm_widgets));
snd_soc_dapm_add_routes(dapm, dac_intercon,
ARRAY_SIZE(dac_intercon));
snd_soc_dapm_add_routes(dapm, wm8912_intercon,
ARRAY_SIZE(wm8912_intercon));
break ;
}
return 0 ;
}
static struct {
int ratio;
unsigned int clk_sys_rate;
} clk_sys_rates[] = {
{ 64 , 0 },
{ 128 , 1 },
{ 192 , 2 },
{ 256 , 3 },
{ 384 , 4 },
{ 512 , 5 },
{ 786 , 6 },
{ 1024 , 7 },
{ 1408 , 8 },
{ 1536 , 9 },
};
static struct {
int rate;
int sample_rate;
} sample_rates[] = {
{ 8000 , 0 },
{ 11025 , 1 },
{ 12000 , 1 },
{ 16000 , 2 },
{ 22050 , 3 },
{ 24000 , 3 },
{ 32000 , 4 },
{ 44100 , 5 },
{ 48000 , 5 },
};
static struct {
int div; /* *10 due to .5s */
int bclk_div;
} bclk_divs[] = {
{ 10 , 0 },
{ 15 , 1 },
{ 20 , 2 },
{ 30 , 3 },
{ 40 , 4 },
{ 50 , 5 },
{ 55 , 6 },
{ 60 , 7 },
{ 80 , 8 },
{ 100 , 9 },
{ 110 , 10 },
{ 120 , 11 },
{ 160 , 12 },
{ 200 , 13 },
{ 220 , 14 },
{ 240 , 16 },
{ 200 , 17 },
{ 320 , 18 },
{ 440 , 19 },
{ 480 , 20 },
};
static int wm8904_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 wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
int ret, i, best, best_val, cur_val;
unsigned int aif1 = 0 ;
unsigned int aif2 = 0 ;
unsigned int aif3 = 0 ;
unsigned int clock1 = 0 ;
unsigned int dac_digital1 = 0 ;
/* What BCLK do we need? */
wm8904->fs = params_rate(params);
if (wm8904->tdm_slots) {
dev_dbg(component->dev, "Configuring for %d %d bit TDM slots\n" ,
wm8904->tdm_slots, wm8904->tdm_width);
wm8904->bclk = snd_soc_calc_bclk(wm8904->fs,
wm8904->tdm_width, 2 ,
wm8904->tdm_slots);
} else {
wm8904->bclk = snd_soc_params_to_bclk(params);
}
switch (params_width(params)) {
case 16 :
break ;
case 20 :
aif1 |= 0 x40;
break ;
case 24 :
aif1 |= 0 x80;
break ;
case 32 :
aif1 |= 0 xc0;
break ;
default :
return -EINVAL;
}
dev_dbg(component->dev, "Target BCLK is %dHz\n" , wm8904->bclk);
ret = wm8904_configure_clocking(component);
if (ret != 0 )
return ret;
/* Select nearest CLK_SYS_RATE */
best = 0 ;
best_val = abs((wm8904->sysclk_rate / clk_sys_rates[0 ].ratio)
- wm8904->fs);
for (i = 1 ; i < ARRAY_SIZE(clk_sys_rates); i++) {
cur_val = abs((wm8904->sysclk_rate /
clk_sys_rates[i].ratio) - wm8904->fs);
if (cur_val < best_val) {
best = i;
best_val = cur_val;
}
}
dev_dbg(component->dev, "Selected CLK_SYS_RATIO of %d\n" ,
clk_sys_rates[best].ratio);
clock1 |= (clk_sys_rates[best].clk_sys_rate
<< WM8904_CLK_SYS_RATE_SHIFT);
/* SAMPLE_RATE */
best = 0 ;
best_val = abs(wm8904->fs - sample_rates[0 ].rate);
for (i = 1 ; i < ARRAY_SIZE(sample_rates); i++) {
/* Closest match */
cur_val = abs(wm8904->fs - sample_rates[i].rate);
if (cur_val < best_val) {
best = i;
best_val = cur_val;
}
}
dev_dbg(component->dev, "Selected SAMPLE_RATE of %dHz\n" ,
sample_rates[best].rate);
clock1 |= (sample_rates[best].sample_rate
<< WM8904_SAMPLE_RATE_SHIFT);
/* Enable sloping stopband filter for low sample rates */
if (wm8904->fs <= 24000 )
dac_digital1 |= WM8904_DAC_SB_FILT;
/* BCLK_DIV */
best = 0 ;
best_val = INT_MAX;
for (i = 0 ; i < ARRAY_SIZE(bclk_divs); i++) {
cur_val = ((wm8904->sysclk_rate * 10 ) / bclk_divs[i].div)
- wm8904->bclk;
if (cur_val < 0 ) /* Table is sorted */
break ;
if (cur_val < best_val) {
best = i;
best_val = cur_val;
}
}
wm8904->bclk = (wm8904->sysclk_rate * 10 ) / bclk_divs[best].div;
dev_dbg(component->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n" ,
bclk_divs[best].div, wm8904->bclk);
aif2 |= bclk_divs[best].bclk_div;
/* LRCLK is a simple fraction of BCLK */
dev_dbg(component->dev, "LRCLK_RATE is %d\n" , wm8904->bclk / wm8904->fs);
aif3 |= wm8904->bclk / wm8904->fs;
/* Apply the settings */
snd_soc_component_update_bits(component, WM8904_DAC_DIGITAL_1,
WM8904_DAC_SB_FILT, dac_digital1);
snd_soc_component_update_bits(component, WM8904_AUDIO_INTERFACE_1,
WM8904_AIF_WL_MASK, aif1);
snd_soc_component_update_bits(component, WM8904_AUDIO_INTERFACE_2,
WM8904_BCLK_DIV_MASK, aif2);
snd_soc_component_update_bits(component, WM8904_AUDIO_INTERFACE_3,
WM8904_LRCLK_RATE_MASK, aif3);
snd_soc_component_update_bits(component, WM8904_CLOCK_RATES_1,
WM8904_SAMPLE_RATE_MASK |
WM8904_CLK_SYS_RATE_MASK, clock1);
/* Update filters for the new settings */
wm8904_set_retune_mobile(component);
wm8904_set_deemph(component);
return 0 ;
}
static int wm8904_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
unsigned int aif1 = 0 ;
unsigned int aif3 = 0 ;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBC_CFC:
break ;
case SND_SOC_DAIFMT_CBC_CFP:
aif3 |= WM8904_LRCLK_DIR;
break ;
case SND_SOC_DAIFMT_CBP_CFC:
aif1 |= WM8904_BCLK_DIR;
break ;
case SND_SOC_DAIFMT_CBP_CFP:
aif1 |= WM8904_BCLK_DIR;
aif3 |= WM8904_LRCLK_DIR;
break ;
default :
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_DSP_B:
aif1 |= 0 x3 | WM8904_AIF_LRCLK_INV;
fallthrough;
case SND_SOC_DAIFMT_DSP_A:
aif1 |= 0 x3;
break ;
case SND_SOC_DAIFMT_I2S:
aif1 |= 0 x2;
break ;
case SND_SOC_DAIFMT_RIGHT_J:
break ;
case SND_SOC_DAIFMT_LEFT_J:
aif1 |= 0 x1;
break ;
default :
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
/* frame inversion not valid for DSP modes */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break ;
case SND_SOC_DAIFMT_IB_NF:
aif1 |= WM8904_AIF_BCLK_INV;
break ;
default :
return -EINVAL;
}
break ;
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_RIGHT_J:
case SND_SOC_DAIFMT_LEFT_J:
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break ;
case SND_SOC_DAIFMT_IB_IF:
aif1 |= WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV;
break ;
case SND_SOC_DAIFMT_IB_NF:
aif1 |= WM8904_AIF_BCLK_INV;
break ;
case SND_SOC_DAIFMT_NB_IF:
aif1 |= WM8904_AIF_LRCLK_INV;
break ;
default :
return -EINVAL;
}
break ;
default :
return -EINVAL;
}
snd_soc_component_update_bits(component, WM8904_AUDIO_INTERFACE_1,
WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV |
WM8904_AIF_FMT_MASK | WM8904_BCLK_DIR, aif1);
snd_soc_component_update_bits(component, WM8904_AUDIO_INTERFACE_3,
WM8904_LRCLK_DIR, aif3);
return 0 ;
}
static int wm8904_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
unsigned int rx_mask, int slots, int slot_width)
{
struct snd_soc_component *component = dai->component;
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
int aif1 = 0 ;
/* Don't need to validate anything if we're turning off TDM */
if (slots == 0 )
goto out;
/* Note that we allow configurations we can't handle ourselves -
* for example , we can generate clocks for slots 2 and up even if
* we can ' t use those slots ourselves .
*/
aif1 |= WM8904_AIFADC_TDM | WM8904_AIFDAC_TDM;
switch (rx_mask) {
case 3 :
break ;
case 0 xc:
aif1 |= WM8904_AIFADC_TDM_CHAN;
break ;
default :
return -EINVAL;
}
switch (tx_mask) {
case 3 :
break ;
case 0 xc:
aif1 |= WM8904_AIFDAC_TDM_CHAN;
break ;
default :
return -EINVAL;
}
out:
wm8904->tdm_width = slot_width;
wm8904->tdm_slots = slots / 2 ;
snd_soc_component_update_bits(component, WM8904_AUDIO_INTERFACE_1,
WM8904_AIFADC_TDM | WM8904_AIFADC_TDM_CHAN |
WM8904_AIFDAC_TDM | WM8904_AIFDAC_TDM_CHAN, aif1);
return 0 ;
}
struct _fll_div {
u16 fll_fratio;
u16 fll_outdiv;
u16 fll_clk_ref_div;
u16 n;
u16 k;
};
/* The size in bits of the FLL divide multiplied by 10
* to allow rounding later */
#define FIXED_FLL_SIZE ((1 << 16 ) * 10 )
static struct {
unsigned int min;
unsigned int max;
u16 fll_fratio;
int ratio;
} fll_fratios[] = {
{ 0 , 64000 , 4 , 16 },
{ 64000 , 128000 , 3 , 8 },
{ 128000 , 256000 , 2 , 4 },
{ 256000 , 1000000 , 1 , 2 },
{ 1000000 , 13500000 , 0 , 1 },
};
static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
unsigned int Fout)
{
u64 Kpart;
unsigned int K, Ndiv, Nmod, target;
unsigned int div;
int i;
/* Fref must be <=13.5MHz */
div = 1 ;
fll_div->fll_clk_ref_div = 0 ;
while ((Fref / div) > 13500000 ) {
div *= 2 ;
fll_div->fll_clk_ref_div++;
if (div > 8 ) {
pr_err("Can't scale %dMHz input down to <=13.5MHz\n" ,
Fref);
return -EINVAL;
}
}
pr_debug("Fref=%u Fout=%u\n" , Fref, Fout);
/* Apply the division for our remaining calculations */
Fref /= div;
/* Fvco should be 90-100MHz; don't check the upper bound */
div = 4 ;
while (Fout * div < 90000000 ) {
div++;
if (div > 64 ) {
pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n" ,
Fout);
return -EINVAL;
}
}
target = Fout * div;
fll_div->fll_outdiv = div - 1 ;
pr_debug("Fvco=%dHz\n" , target);
/* Find an appropriate FLL_FRATIO and factor it out of the target */
for (i = 0 ; i < ARRAY_SIZE(fll_fratios); i++) {
if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
fll_div->fll_fratio = fll_fratios[i].fll_fratio;
target /= fll_fratios[i].ratio;
break ;
}
}
if (i == ARRAY_SIZE(fll_fratios)) {
pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n" , Fref);
return -EINVAL;
}
/* Now, calculate N.K */
Ndiv = target / Fref;
fll_div->n = Ndiv;
Nmod = target % Fref;
pr_debug("Nmod=%d\n" , Nmod);
/* Calculate fractional part - scale up so we can round. */
Kpart = FIXED_FLL_SIZE * (long long )Nmod;
do_div(Kpart, Fref);
K = Kpart & 0 xFFFFFFFF;
if ((K % 10 ) >= 5 )
K += 5 ;
/* Move down to proper range now rounding is done */
fll_div->k = K / 10 ;
pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n" ,
fll_div->n, fll_div->k,
fll_div->fll_fratio, fll_div->fll_outdiv,
fll_div->fll_clk_ref_div);
return 0 ;
}
static int wm8904_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
unsigned int Fref, unsigned int Fout)
{
struct snd_soc_component *component = dai->component;
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct _fll_div fll_div;
int ret, val;
int clock2, fll1;
/* Any change? */
if (source == wm8904->fll_src && Fref == wm8904->fll_fref &&
Fout == wm8904->fll_fout)
return 0 ;
clock2 = snd_soc_component_read(component, WM8904_CLOCK_RATES_2);
if (Fout == 0 ) {
dev_dbg(component->dev, "FLL disabled\n" );
wm8904->fll_fref = 0 ;
wm8904->fll_fout = 0 ;
/* Gate SYSCLK to avoid glitches */
snd_soc_component_update_bits(component, WM8904_CLOCK_RATES_2,
WM8904_CLK_SYS_ENA, 0 );
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0 );
goto out;
}
/* Validate the FLL ID */
switch (source) {
case WM8904_FLL_MCLK:
case WM8904_FLL_LRCLK:
case WM8904_FLL_BCLK:
ret = fll_factors(&fll_div, Fref, Fout);
if (ret != 0 )
return ret;
break ;
case WM8904_FLL_FREE_RUNNING:
dev_dbg(component->dev, "Using free running FLL\n" );
/* Force 12MHz and output/4 for now */
Fout = 12000000 ;
Fref = 12000000 ;
memset(&fll_div, 0 , sizeof (fll_div));
fll_div.fll_outdiv = 3 ;
break ;
default :
dev_err(component->dev, "Unknown FLL ID %d\n" , fll_id);
return -EINVAL;
}
/* Save current state then disable the FLL and SYSCLK to avoid
* misclocking */
fll1 = snd_soc_component_read(component, WM8904_FLL_CONTROL_1);
snd_soc_component_update_bits(component, WM8904_CLOCK_RATES_2,
WM8904_CLK_SYS_ENA, 0 );
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0 );
/* Unlock forced oscilator control to switch it on/off */
snd_soc_component_update_bits(component, WM8904_CONTROL_INTERFACE_TEST_1,
WM8904_USER_KEY, WM8904_USER_KEY);
if (fll_id == WM8904_FLL_FREE_RUNNING) {
val = WM8904_FLL_FRC_NCO;
} else {
val = 0 ;
}
snd_soc_component_update_bits(component, WM8904_FLL_NCO_TEST_1, WM8904_FLL_FRC_NCO,
val);
snd_soc_component_update_bits(component, WM8904_CONTROL_INTERFACE_TEST_1,
WM8904_USER_KEY, 0 );
switch (fll_id) {
case WM8904_FLL_MCLK:
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_5,
WM8904_FLL_CLK_REF_SRC_MASK, 0 );
break ;
case WM8904_FLL_LRCLK:
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_5,
WM8904_FLL_CLK_REF_SRC_MASK, 1 );
break ;
case WM8904_FLL_BCLK:
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_5,
WM8904_FLL_CLK_REF_SRC_MASK, 2 );
break ;
}
if (fll_div.k)
val = WM8904_FLL_FRACN_ENA;
else
val = 0 ;
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_FRACN_ENA, val);
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_2,
WM8904_FLL_OUTDIV_MASK | WM8904_FLL_FRATIO_MASK,
(fll_div.fll_outdiv << WM8904_FLL_OUTDIV_SHIFT) |
(fll_div.fll_fratio << WM8904_FLL_FRATIO_SHIFT));
snd_soc_component_write(component, WM8904_FLL_CONTROL_3, fll_div.k);
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_4, WM8904_FLL_N_MASK,
fll_div.n << WM8904_FLL_N_SHIFT);
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_5,
WM8904_FLL_CLK_REF_DIV_MASK,
fll_div.fll_clk_ref_div
<< WM8904_FLL_CLK_REF_DIV_SHIFT);
dev_dbg(component->dev, "FLL configured for %dHz->%dHz\n" , Fref, Fout);
wm8904->fll_fref = Fref;
wm8904->fll_fout = Fout;
wm8904->fll_src = source;
/* Enable the FLL if it was previously active */
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_OSC_ENA, fll1);
snd_soc_component_update_bits(component, WM8904_FLL_CONTROL_1,
WM8904_FLL_ENA, fll1);
out:
/* Reenable SYSCLK if it was previously active */
snd_soc_component_update_bits(component, WM8904_CLOCK_RATES_2,
WM8904_CLK_SYS_ENA, clock2);
return 0 ;
}
static int wm8904_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
struct snd_soc_component *component = dai->component;
struct wm8904_priv *priv = snd_soc_component_get_drvdata(component);
unsigned long mclk_freq;
int ret;
switch (clk_id) {
case WM8904_CLK_AUTO:
/* We don't have any rate constraints, so just ignore the
* request to disable constraining .
*/
if (!freq)
return 0 ;
mclk_freq = clk_get_rate(priv->mclk);
/* enable FLL if a different sysclk is desired */
if (mclk_freq != freq) {
priv->sysclk_src = WM8904_CLK_FLL;
ret = wm8904_set_fll(dai, WM8904_FLL_MCLK,
WM8904_FLL_MCLK,
mclk_freq, freq);
if (ret)
return ret;
break ;
}
clk_id = WM8904_CLK_MCLK;
fallthrough;
case WM8904_CLK_MCLK:
priv->sysclk_src = clk_id;
priv->mclk_rate = freq;
break ;
case WM8904_CLK_FLL:
priv->sysclk_src = clk_id;
break ;
default :
return -EINVAL;
}
dev_dbg(dai->dev, "Clock source is %d at %uHz\n" , clk_id, freq);
wm8904_configure_clocking(component);
return 0 ;
}
static int wm8904_mute(struct snd_soc_dai *codec_dai, int mute, int direction)
{
struct snd_soc_component *component = codec_dai->component;
int val;
if (mute)
val = WM8904_DAC_MUTE;
else
val = 0 ;
snd_soc_component_update_bits(component, WM8904_DAC_DIGITAL_1, WM8904_DAC_MUTE, val);
return 0 ;
}
static int wm8904_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
break ;
case SND_SOC_BIAS_PREPARE:
/* VMID resistance 2*50k */
snd_soc_component_update_bits(component, WM8904_VMID_CONTROL_0,
WM8904_VMID_RES_MASK,
0 x1 << WM8904_VMID_RES_SHIFT);
/* Normal bias current */
snd_soc_component_update_bits(component, WM8904_BIAS_CONTROL_0,
WM8904_ISEL_MASK, 2 << WM8904_ISEL_SHIFT);
break ;
case SND_SOC_BIAS_STANDBY:
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
wm8904->supplies);
if (ret != 0 ) {
dev_err(component->dev,
"Failed to enable supplies: %d\n" ,
ret);
return ret;
}
ret = clk_prepare_enable(wm8904->mclk);
if (ret) {
dev_err(component->dev,
"Failed to enable MCLK: %d\n" , ret);
regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies),
wm8904->supplies);
return ret;
}
regcache_cache_only(wm8904->regmap, false );
regcache_sync(wm8904->regmap);
/* Enable bias */
snd_soc_component_update_bits(component, WM8904_BIAS_CONTROL_0,
WM8904_BIAS_ENA, WM8904_BIAS_ENA);
/* Enable VMID, VMID buffering, 2*5k resistance */
snd_soc_component_update_bits(component, WM8904_VMID_CONTROL_0,
WM8904_VMID_ENA |
WM8904_VMID_RES_MASK,
WM8904_VMID_ENA |
0 x3 << WM8904_VMID_RES_SHIFT);
/* Let VMID ramp */
msleep(1 );
}
/* Maintain VMID with 2*250k */
snd_soc_component_update_bits(component, WM8904_VMID_CONTROL_0,
WM8904_VMID_RES_MASK,
0 x2 << WM8904_VMID_RES_SHIFT);
/* Bias current *0.5 */
snd_soc_component_update_bits(component, WM8904_BIAS_CONTROL_0,
WM8904_ISEL_MASK, 0 );
break ;
case SND_SOC_BIAS_OFF:
/* Turn off VMID */
snd_soc_component_update_bits(component, WM8904_VMID_CONTROL_0,
WM8904_VMID_RES_MASK | WM8904_VMID_ENA, 0 );
/* Stop bias generation */
snd_soc_component_update_bits(component, WM8904_BIAS_CONTROL_0,
WM8904_BIAS_ENA, 0 );
snd_soc_component_write(component, WM8904_SW_RESET_AND_ID, 0 );
regcache_cache_only(wm8904->regmap, true );
regcache_mark_dirty(wm8904->regmap);
regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies),
wm8904->supplies);
clk_disable_unprepare(wm8904->mclk);
break ;
}
return 0 ;
}
#define WM8904_RATES SNDRV_PCM_RATE_8000_96000
#define WM8904_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
static const struct snd_soc_dai_ops wm8904_dai_ops = {
.set_sysclk = wm8904_set_sysclk,
.set_fmt = wm8904_set_fmt,
.set_tdm_slot = wm8904_set_tdm_slot,
.set_pll = wm8904_set_fll,
.hw_params = wm8904_hw_params,
.mute_stream = wm8904_mute,
.no_capture_mute = 1 ,
};
static struct snd_soc_dai_driver wm8904_dai = {
.name = "wm8904-hifi" ,
.playback = {
.stream_name = "Playback" ,
.channels_min = 2 ,
.channels_max = 2 ,
.rates = WM8904_RATES,
.formats = WM8904_FORMATS,
},
.capture = {
.stream_name = "Capture" ,
.channels_min = 2 ,
.channels_max = 2 ,
.rates = WM8904_RATES,
.formats = WM8904_FORMATS,
},
.ops = &wm8904_dai_ops,
.symmetric_rate = 1 ,
};
static void wm8904_handle_retune_mobile_pdata(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct wm8904_pdata *pdata = wm8904->pdata;
struct snd_kcontrol_new control =
SOC_ENUM_EXT("EQ Mode" ,
wm8904->retune_mobile_enum,
wm8904_get_retune_mobile_enum,
wm8904_put_retune_mobile_enum);
int ret, i, j;
const char **t;
/* We need an array of texts for the enum API but the number
* of texts is likely to be less than the number of
* configurations due to the sample rate dependency of the
* configurations. */
wm8904->num_retune_mobile_texts = 0 ;
wm8904->retune_mobile_texts = NULL;
for (i = 0 ; i < pdata->num_retune_mobile_cfgs; i++) {
for (j = 0 ; j < wm8904->num_retune_mobile_texts; j++) {
if (strcmp(pdata->retune_mobile_cfgs[i].name,
wm8904->retune_mobile_texts[j]) == 0 )
break ;
}
if (j != wm8904->num_retune_mobile_texts)
continue ;
/* Expand the array... */
t = krealloc(wm8904->retune_mobile_texts,
sizeof (char *) *
(wm8904->num_retune_mobile_texts + 1 ),
GFP_KERNEL);
if (t == NULL)
continue ;
/* ...store the new entry... */
t[wm8904->num_retune_mobile_texts] =
pdata->retune_mobile_cfgs[i].name;
/* ...and remember the new version. */
wm8904->num_retune_mobile_texts++;
wm8904->retune_mobile_texts = t;
}
dev_dbg(component->dev, "Allocated %d unique ReTune Mobile names\n" ,
wm8904->num_retune_mobile_texts);
wm8904->retune_mobile_enum.items = wm8904->num_retune_mobile_texts;
wm8904->retune_mobile_enum.texts = wm8904->retune_mobile_texts;
ret = snd_soc_add_component_controls(component, &control, 1 );
if (ret != 0 )
dev_err(component->dev,
"Failed to add ReTune Mobile control: %d\n" , ret);
}
static void wm8904_handle_dmic_pdata(struct snd_soc_component *component)
{
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct wm8904_pdata *pdata = wm8904->pdata;
unsigned int dmic_src;
if (!pdata->in1l_as_dmicdat1 && !pdata->in1r_as_dmicdat2) {
snd_soc_dapm_add_routes(dapm, cin_nodmic_con,
ARRAY_SIZE(cin_nodmic_con));
snd_soc_component_update_bits(component, WM8904_DIGITAL_MICROPHONE_0,
WM8904_DMIC_ENA_MASK, 0 );
return ;
}
/* Need a control and routing to switch between DMIC and ADC */
snd_soc_dapm_new_controls(dapm, wm8904_cin_dapm_widgets,
ARRAY_SIZE(wm8904_cin_dapm_widgets));
snd_soc_dapm_add_routes(dapm, cin_adc_dmic_con,
ARRAY_SIZE(cin_adc_dmic_con));
if (pdata->in1l_as_dmicdat1 && pdata->in1r_as_dmicdat2) {
/* Need a control and routing to mux between DMICDAT1 and 2 */
dev_dbg(component->dev, "DMICDAT1 and DMICDAT2 in use\n" );
snd_soc_dapm_new_controls(dapm, wm8904_dmic_dapm_widgets,
ARRAY_SIZE(wm8904_dmic_dapm_widgets));
snd_soc_dapm_add_routes(dapm, cin_2dmics_con,
ARRAY_SIZE(cin_2dmics_con));
return ;
}
/* Either DMICDAT1 or DMICDAT2 is in use, not both */
if (pdata->in1l_as_dmicdat1) {
dmic_src = 0 ;
snd_soc_dapm_add_routes(dapm, cin_dmic1_con,
ARRAY_SIZE(cin_dmic1_con));
} else {
dmic_src = 1 ;
snd_soc_dapm_add_routes(dapm, cin_dmic2_con,
ARRAY_SIZE(cin_dmic2_con));
}
dev_dbg(component->dev, "DMIC_SRC (0 or 1): %d\n" , dmic_src);
snd_soc_component_update_bits(component, WM8904_DIGITAL_MICROPHONE_0,
WM8904_DMIC_SRC_MASK,
dmic_src << WM8904_DMIC_SRC_SHIFT);
}
static void wm8904_handle_pdata(struct snd_soc_component *component)
{
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
struct wm8904_pdata *pdata = wm8904->pdata;
int ret, i;
if (!pdata) {
snd_soc_dapm_add_routes(dapm, cin_nodmic_con,
ARRAY_SIZE(cin_nodmic_con));
snd_soc_add_component_controls(component, wm8904_eq_controls,
ARRAY_SIZE(wm8904_eq_controls));
return ;
}
wm8904_handle_dmic_pdata(component);
dev_dbg(component->dev, "%d DRC configurations\n" , pdata->num_drc_cfgs);
if (pdata->num_drc_cfgs) {
struct snd_kcontrol_new control =
SOC_ENUM_EXT("DRC Mode" , wm8904->drc_enum,
wm8904_get_drc_enum, wm8904_put_drc_enum);
/* We need an array of texts for the enum API */
wm8904->drc_texts = kmalloc_array(pdata->num_drc_cfgs,
sizeof (char *),
GFP_KERNEL);
if (!wm8904->drc_texts)
return ;
for (i = 0 ; i < pdata->num_drc_cfgs; i++)
wm8904->drc_texts[i] = pdata->drc_cfgs[i].name;
wm8904->drc_enum.items = pdata->num_drc_cfgs;
wm8904->drc_enum.texts = wm8904->drc_texts;
ret = snd_soc_add_component_controls(component, &control, 1 );
if (ret != 0 )
dev_err(component->dev,
"Failed to add DRC mode control: %d\n" , ret);
wm8904_set_drc(component);
}
dev_dbg(component->dev, "%d ReTune Mobile configurations\n" ,
pdata->num_retune_mobile_cfgs);
if (pdata->num_retune_mobile_cfgs)
wm8904_handle_retune_mobile_pdata(component);
else
snd_soc_add_component_controls(component, wm8904_eq_controls,
ARRAY_SIZE(wm8904_eq_controls));
}
static int wm8904_probe(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
switch (wm8904->devtype) {
case WM8904:
break ;
case WM8912:
memset(&wm8904_dai.capture, 0 , sizeof (wm8904_dai.capture));
break ;
default :
dev_err(component->dev, "Unknown device type %d\n" ,
wm8904->devtype);
return -EINVAL;
}
wm8904_add_widgets(component);
/* This can add dependent widgets, so it is done after add_widgets */
wm8904_handle_pdata(component);
return 0 ;
}
static void wm8904_remove(struct snd_soc_component *component)
{
struct wm8904_priv *wm8904 = snd_soc_component_get_drvdata(component);
kfree(wm8904->retune_mobile_texts);
kfree(wm8904->drc_texts);
}
static const struct snd_soc_component_driver soc_component_dev_wm8904 = {
.probe = wm8904_probe,
.remove = wm8904_remove,
.set_bias_level = wm8904_set_bias_level,
.use_pmdown_time = 1 ,
.endianness = 1 ,
};
static const struct regmap_config wm8904_regmap = {
.reg_bits = 8 ,
.val_bits = 16 ,
.max_register = WM8904_MAX_REGISTER,
.volatile_reg = wm8904_volatile_register,
.readable_reg = wm8904_readable_register,
.cache_type = REGCACHE_MAPLE,
.reg_defaults = wm8904_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm8904_reg_defaults),
};
#ifdef CONFIG_OF
static const struct of_device_id wm8904_of_match[] = {
{
.compatible = "wlf,wm8904" ,
.data = (void *)WM8904,
}, {
.compatible = "wlf,wm8912" ,
.data = (void *)WM8912,
}, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(of, wm8904_of_match);
#endif
/**
* wm8904_read_cfg_reg_arr ( ) - Reads a subarray from a DT u16 array
*
* @ np : pointer to the device_node struct
* @ regs_property : DT property of interest
* @ size : size of subarrays within the array
* @ idx : index of the subarray of interest
* @ out : output
*
* Helper to read a subarray from a DT uint16 - array ,
* divided into equally sized arrays of size ` size `
*
* Subset starts at ` idx * size ` and is of size ` size `
*
* Return : 0 on success , negative error code otherwise
*/
static int wm8904_read_cfg_reg_arr(const struct device_node *np,
const char * const regs_property,
int size, int idx,
u16 * const out)
{
int i, offset, ret;
offset = idx * size;
for (i = 0 ; i < size; i++) {
ret = of_property_read_u16_index(np, regs_property, i + offset, &out[i]);
if (ret)
return ret;
}
return 0 ;
}
static int wm8904_parse_retune_cfg_regs(const struct device_node *np,
struct wm8904_pdata *pdata, int cfg_idx)
{
return wm8904_read_cfg_reg_arr(np, "wlf,retune-mobile-cfg-regs" ,
WM8904_EQ_REGS, cfg_idx,
&pdata->retune_mobile_cfgs[cfg_idx].regs[0 ]);
}
static int wm8904_parse_drc_cfg_regs(const struct device_node *np,
struct wm8904_pdata *pdata, int cfg_idx)
{
return wm8904_read_cfg_reg_arr(np, "wlf,drc-cfg-regs" ,
WM8904_DRC_REGS, cfg_idx,
&pdata->drc_cfgs[cfg_idx].regs[0 ]);
}
static int wm8904_parse_drc_cfg_from_of(struct i2c_client *i2c,
struct wm8904_pdata *pdata)
{
const struct device_node *np = i2c->dev.of_node;
int i, n_cfgs;
n_cfgs = of_property_count_strings(np, "wlf,drc-cfg-names" );
if (n_cfgs == -EINVAL)
return 0 ;
if (n_cfgs <= 0 ) {
dev_err(&i2c->dev, "Could not get wlf,drc-cfg-names length: %d" ,
n_cfgs);
return n_cfgs;
}
pdata->drc_cfgs = devm_kzalloc(&i2c->dev,
n_cfgs * sizeof (struct wm8904_drc_cfg),
GFP_KERNEL);
if (!pdata->drc_cfgs)
return -ENOMEM;
for (i = 0 ; i < n_cfgs; i++) {
if (wm8904_parse_drc_cfg_regs(np, pdata, i)) {
dev_err(&i2c->dev,
"Invalid 'wlf,drc-cfg-regs[%i,:]'\n" , i);
return -EINVAL;
}
if (of_property_read_string_index(np, "wlf,drc-cfg-names" , i,
&pdata->drc_cfgs[i].name)) {
dev_err(&i2c->dev,
"Invalid 'wlf,drc-cfg-names[%i]'\n" , i);
return -EINVAL;
}
}
pdata->num_drc_cfgs = n_cfgs;
return 0 ;
}
static int wm8904_parse_retune_cfg_from_of(struct i2c_client *i2c,
struct wm8904_pdata *pdata)
{
const struct device_node *np = i2c->dev.of_node;
int i, n_cfgs;
n_cfgs = of_property_count_strings(np, "wlf,retune-mobile-cfg-names" );
if (n_cfgs == -EINVAL)
return 0 ;
if (n_cfgs <= 0 ) {
dev_err(&i2c->dev,
"Could not get wlf,retune-mobile-cfg-names length: %d" ,
n_cfgs);
return n_cfgs;
}
pdata->retune_mobile_cfgs = devm_kzalloc(&i2c->dev,
n_cfgs * sizeof (struct wm8904_retune_mobile_cfg),
GFP_KERNEL);
if (!pdata->retune_mobile_cfgs)
return -ENOMEM;
for (i = 0 ; i < n_cfgs; i++) {
if (wm8904_parse_retune_cfg_regs(np, pdata, i)) {
dev_err(&i2c->dev,
"Invalid 'wlf,retune-mobile-cfg-regs[%i,:]'\n" , i);
return -EINVAL;
}
if (of_property_read_u32_index(np, "wlf,retune-mobile-cfg-hz" , i,
&pdata->retune_mobile_cfgs[i].rate)) {
dev_err(&i2c->dev,
"Invalid 'wlf,retune-mobile-cfg-hz[%i]'\n" , i);
return -EINVAL;
}
if (of_property_read_string_index(np, "wlf,retune-mobile-cfg-names" , i,
&pdata->retune_mobile_cfgs[i].name)) {
dev_err(&i2c->dev,
"Invalid 'wlf,retune-mobile-cfg-names[%i]'\n" , i);
return -EINVAL;
}
}
pdata->num_retune_mobile_cfgs = n_cfgs;
return 0 ;
}
static int wm8904_set_pdata_from_of(struct i2c_client *i2c,
struct wm8904_priv *wm8904)
{
const struct device_node *np = i2c->dev.of_node;
struct wm8904_pdata *pdata;
int ret, i;
pdata = devm_kzalloc(&i2c->dev, sizeof (*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->in1l_as_dmicdat1 =
of_property_read_bool(np, "wlf,in1l-as-dmicdat1" );
pdata->in1r_as_dmicdat2 =
of_property_read_bool(np, "wlf,in1r-as-dmicdat2" );
/* If absent, default to 0xFFFF for GPIO config (i.e.: don't set) */
for (i = 0 ; i < WM8904_GPIO_REGS; i++)
pdata->gpio_cfg[i] = 0 xFFFF;
of_property_read_u32_array(np, "wlf,gpio-cfg" , pdata->gpio_cfg,
ARRAY_SIZE(pdata->gpio_cfg));
of_property_read_u32_array(np, "wlf,micbias-cfg" , pdata->mic_cfg,
ARRAY_SIZE(pdata->mic_cfg));
ret = wm8904_parse_drc_cfg_from_of(i2c, pdata);
if (ret)
return ret;
ret = wm8904_parse_retune_cfg_from_of(i2c, pdata);
if (ret)
return ret;
wm8904->pdata = pdata;
return 0 ;
}
static const struct i2c_device_id wm8904_i2c_id[];
static int wm8904_i2c_probe(struct i2c_client *i2c)
{
struct wm8904_priv *wm8904;
unsigned int val;
int ret, i;
wm8904 = devm_kzalloc(&i2c->dev, sizeof (struct wm8904_priv),
GFP_KERNEL);
if (wm8904 == NULL)
return -ENOMEM;
wm8904->mclk = devm_clk_get(&i2c->dev, "mclk" );
if (IS_ERR(wm8904->mclk)) {
ret = PTR_ERR(wm8904->mclk);
dev_err(&i2c->dev, "Failed to get MCLK\n" );
return ret;
}
wm8904->regmap = devm_regmap_init_i2c(i2c, &wm8904_regmap);
if (IS_ERR(wm8904->regmap)) {
ret = PTR_ERR(wm8904->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n" ,
ret);
return ret;
}
wm8904->devtype = (uintptr_t)i2c_get_match_data(i2c);
i2c_set_clientdata(i2c, wm8904);
if (i2c->dev.of_node) {
ret = wm8904_set_pdata_from_of(i2c, wm8904);
if (ret) {
dev_err(&i2c->dev, "Failed to set platform data from of: %d\n" , ret);
return ret;
}
} else {
wm8904->pdata = i2c->dev.platform_data;
}
for (i = 0 ; i < ARRAY_SIZE(wm8904->supplies); i++)
wm8904->supplies[i].supply = wm8904_supply_names[i];
ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8904->supplies),
wm8904->supplies);
if (ret != 0 ) {
dev_err(&i2c->dev, "Failed to request supplies: %d\n" , ret);
return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
wm8904->supplies);
if (ret != 0 ) {
dev_err(&i2c->dev, "Failed to enable supplies: %d\n" , ret);
return ret;
}
ret = regmap_read(wm8904->regmap, WM8904_SW_RESET_AND_ID, &val);
if (ret < 0 ) {
dev_err(&i2c->dev, "Failed to read ID register: %d\n" , ret);
goto err_enable;
}
if (val != 0 x8904) {
dev_err(&i2c->dev, "Device is not a WM8904, ID is %x\n" , val);
ret = -EINVAL;
goto err_enable;
}
ret = regmap_read(wm8904->regmap, WM8904_REVISION, &val);
if (ret < 0 ) {
dev_err(&i2c->dev, "Failed to read device revision: %d\n" ,
ret);
goto err_enable;
}
dev_info(&i2c->dev, "revision %c\n" , val + 'A' );
ret = regmap_write(wm8904->regmap, WM8904_SW_RESET_AND_ID, 0 );
if (ret < 0 ) {
dev_err(&i2c->dev, "Failed to issue reset: %d\n" , ret);
goto err_enable;
}
/* Change some default settings - latch VU and enable ZC */
regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_LEFT,
WM8904_ADC_VU, WM8904_ADC_VU);
regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_RIGHT,
WM8904_ADC_VU, WM8904_ADC_VU);
regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_LEFT,
WM8904_DAC_VU, WM8904_DAC_VU);
regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_RIGHT,
WM8904_DAC_VU, WM8904_DAC_VU);
regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_LEFT,
WM8904_HPOUT_VU | WM8904_HPOUTLZC,
WM8904_HPOUT_VU | WM8904_HPOUTLZC);
regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_RIGHT,
WM8904_HPOUT_VU | WM8904_HPOUTRZC,
WM8904_HPOUT_VU | WM8904_HPOUTRZC);
regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_LEFT,
WM8904_LINEOUT_VU | WM8904_LINEOUTLZC,
WM8904_LINEOUT_VU | WM8904_LINEOUTLZC);
regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_RIGHT,
WM8904_LINEOUT_VU | WM8904_LINEOUTRZC,
WM8904_LINEOUT_VU | WM8904_LINEOUTRZC);
regmap_update_bits(wm8904->regmap, WM8904_CLOCK_RATES_0,
WM8904_SR_MODE, 0 );
/* Apply configuration from the platform data. */
if (wm8904->pdata) {
for (i = 0 ; i < WM8904_GPIO_REGS; i++) {
/* 0xFFFF in this config means "don't touch" */
if (wm8904->pdata->gpio_cfg[i] == 0 xffff)
continue ;
regmap_update_bits(wm8904->regmap,
WM8904_GPIO_CONTROL_1 + i,
0 xffff,
wm8904->pdata->gpio_cfg[i]);
}
/* Zero is the default value for these anyway */
for (i = 0 ; i < WM8904_MIC_REGS; i++)
regmap_update_bits(wm8904->regmap,
WM8904_MIC_BIAS_CONTROL_0 + i,
0 xffff,
wm8904->pdata->mic_cfg[i]);
}
/* Set Class W by default - this will be managed by the Class
* G widget at runtime where bypass paths are available .
*/
regmap_update_bits(wm8904->regmap, WM8904_CLASS_W_0,
WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR);
/* Use normal bias source */
regmap_update_bits(wm8904->regmap, WM8904_BIAS_CONTROL_0,
WM8904_POBCTRL, 0 );
/* Fill the cache for the ADC test register */
regmap_read(wm8904->regmap, WM8904_ADC_TEST_0, &val);
/* Can leave the device powered off until we need it */
regcache_cache_only(wm8904->regmap, true );
regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
ret = devm_snd_soc_register_component(&i2c->dev,
&soc_component_dev_wm8904, &wm8904_dai, 1 );
if (ret != 0 )
return ret;
return 0 ;
err_enable:
regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
return ret;
}
static const struct i2c_device_id wm8904_i2c_id[] = {
{ "wm8904" , WM8904 },
{ "wm8912" , WM8912 },
{ "wm8918" , WM8904 }, /* Actually a subset, updates to follow */
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id);
static struct i2c_driver wm8904_i2c_driver = {
.driver = {
.name = "wm8904" ,
.of_match_table = of_match_ptr(wm8904_of_match),
},
.probe = wm8904_i2c_probe,
.id_table = wm8904_i2c_id,
};
module_i2c_driver(wm8904_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8904 driver" );
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>" );
MODULE_LICENSE("GPL" );
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