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ubuntu-linux-kernel/sound/soc/codecs/wm8993.c

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2024-04-01 15:06:58 +00:00
/*
* wm8993.c -- WM8993 ALSA SoC audio driver
*
* Copyright 2009-12 Wolfson Microelectronics plc
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.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/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/spi/spi.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/wm8993.h>
#include "wm8993.h"
#include "wm_hubs.h"
#define WM8993_NUM_SUPPLIES 6
static const char *wm8993_supply_names[WM8993_NUM_SUPPLIES] = {
"DCVDD",
"DBVDD",
"AVDD1",
"AVDD2",
"CPVDD",
"SPKVDD",
};
static const struct reg_default wm8993_reg_defaults[] = {
{ 1, 0x0000 }, /* R1 - Power Management (1) */
{ 2, 0x6000 }, /* R2 - Power Management (2) */
{ 3, 0x0000 }, /* R3 - Power Management (3) */
{ 4, 0x4050 }, /* R4 - Audio Interface (1) */
{ 5, 0x4000 }, /* R5 - Audio Interface (2) */
{ 6, 0x01C8 }, /* R6 - Clocking 1 */
{ 7, 0x0000 }, /* R7 - Clocking 2 */
{ 8, 0x0000 }, /* R8 - Audio Interface (3) */
{ 9, 0x0040 }, /* R9 - Audio Interface (4) */
{ 10, 0x0004 }, /* R10 - DAC CTRL */
{ 11, 0x00C0 }, /* R11 - Left DAC Digital Volume */
{ 12, 0x00C0 }, /* R12 - Right DAC Digital Volume */
{ 13, 0x0000 }, /* R13 - Digital Side Tone */
{ 14, 0x0300 }, /* R14 - ADC CTRL */
{ 15, 0x00C0 }, /* R15 - Left ADC Digital Volume */
{ 16, 0x00C0 }, /* R16 - Right ADC Digital Volume */
{ 18, 0x0000 }, /* R18 - GPIO CTRL 1 */
{ 19, 0x0010 }, /* R19 - GPIO1 */
{ 20, 0x0000 }, /* R20 - IRQ_DEBOUNCE */
{ 21, 0x0000 }, /* R21 - Inputs Clamp */
{ 22, 0x8000 }, /* R22 - GPIOCTRL 2 */
{ 23, 0x0800 }, /* R23 - GPIO_POL */
{ 24, 0x008B }, /* R24 - Left Line Input 1&2 Volume */
{ 25, 0x008B }, /* R25 - Left Line Input 3&4 Volume */
{ 26, 0x008B }, /* R26 - Right Line Input 1&2 Volume */
{ 27, 0x008B }, /* R27 - Right Line Input 3&4 Volume */
{ 28, 0x006D }, /* R28 - Left Output Volume */
{ 29, 0x006D }, /* R29 - Right Output Volume */
{ 30, 0x0066 }, /* R30 - Line Outputs Volume */
{ 31, 0x0020 }, /* R31 - HPOUT2 Volume */
{ 32, 0x0079 }, /* R32 - Left OPGA Volume */
{ 33, 0x0079 }, /* R33 - Right OPGA Volume */
{ 34, 0x0003 }, /* R34 - SPKMIXL Attenuation */
{ 35, 0x0003 }, /* R35 - SPKMIXR Attenuation */
{ 36, 0x0011 }, /* R36 - SPKOUT Mixers */
{ 37, 0x0100 }, /* R37 - SPKOUT Boost */
{ 38, 0x0079 }, /* R38 - Speaker Volume Left */
{ 39, 0x0079 }, /* R39 - Speaker Volume Right */
{ 40, 0x0000 }, /* R40 - Input Mixer2 */
{ 41, 0x0000 }, /* R41 - Input Mixer3 */
{ 42, 0x0000 }, /* R42 - Input Mixer4 */
{ 43, 0x0000 }, /* R43 - Input Mixer5 */
{ 44, 0x0000 }, /* R44 - Input Mixer6 */
{ 45, 0x0000 }, /* R45 - Output Mixer1 */
{ 46, 0x0000 }, /* R46 - Output Mixer2 */
{ 47, 0x0000 }, /* R47 - Output Mixer3 */
{ 48, 0x0000 }, /* R48 - Output Mixer4 */
{ 49, 0x0000 }, /* R49 - Output Mixer5 */
{ 50, 0x0000 }, /* R50 - Output Mixer6 */
{ 51, 0x0000 }, /* R51 - HPOUT2 Mixer */
{ 52, 0x0000 }, /* R52 - Line Mixer1 */
{ 53, 0x0000 }, /* R53 - Line Mixer2 */
{ 54, 0x0000 }, /* R54 - Speaker Mixer */
{ 55, 0x0000 }, /* R55 - Additional Control */
{ 56, 0x0000 }, /* R56 - AntiPOP1 */
{ 57, 0x0000 }, /* R57 - AntiPOP2 */
{ 58, 0x0000 }, /* R58 - MICBIAS */
{ 60, 0x0000 }, /* R60 - FLL Control 1 */
{ 61, 0x0000 }, /* R61 - FLL Control 2 */
{ 62, 0x0000 }, /* R62 - FLL Control 3 */
{ 63, 0x2EE0 }, /* R63 - FLL Control 4 */
{ 64, 0x0002 }, /* R64 - FLL Control 5 */
{ 65, 0x2287 }, /* R65 - Clocking 3 */
{ 66, 0x025F }, /* R66 - Clocking 4 */
{ 67, 0x0000 }, /* R67 - MW Slave Control */
{ 69, 0x0002 }, /* R69 - Bus Control 1 */
{ 70, 0x0000 }, /* R70 - Write Sequencer 0 */
{ 71, 0x0000 }, /* R71 - Write Sequencer 1 */
{ 72, 0x0000 }, /* R72 - Write Sequencer 2 */
{ 73, 0x0000 }, /* R73 - Write Sequencer 3 */
{ 74, 0x0000 }, /* R74 - Write Sequencer 4 */
{ 75, 0x0000 }, /* R75 - Write Sequencer 5 */
{ 76, 0x1F25 }, /* R76 - Charge Pump 1 */
{ 81, 0x0000 }, /* R81 - Class W 0 */
{ 85, 0x054A }, /* R85 - DC Servo 1 */
{ 87, 0x0000 }, /* R87 - DC Servo 3 */
{ 96, 0x0100 }, /* R96 - Analogue HP 0 */
{ 98, 0x0000 }, /* R98 - EQ1 */
{ 99, 0x000C }, /* R99 - EQ2 */
{ 100, 0x000C }, /* R100 - EQ3 */
{ 101, 0x000C }, /* R101 - EQ4 */
{ 102, 0x000C }, /* R102 - EQ5 */
{ 103, 0x000C }, /* R103 - EQ6 */
{ 104, 0x0FCA }, /* R104 - EQ7 */
{ 105, 0x0400 }, /* R105 - EQ8 */
{ 106, 0x00D8 }, /* R106 - EQ9 */
{ 107, 0x1EB5 }, /* R107 - EQ10 */
{ 108, 0xF145 }, /* R108 - EQ11 */
{ 109, 0x0B75 }, /* R109 - EQ12 */
{ 110, 0x01C5 }, /* R110 - EQ13 */
{ 111, 0x1C58 }, /* R111 - EQ14 */
{ 112, 0xF373 }, /* R112 - EQ15 */
{ 113, 0x0A54 }, /* R113 - EQ16 */
{ 114, 0x0558 }, /* R114 - EQ17 */
{ 115, 0x168E }, /* R115 - EQ18 */
{ 116, 0xF829 }, /* R116 - EQ19 */
{ 117, 0x07AD }, /* R117 - EQ20 */
{ 118, 0x1103 }, /* R118 - EQ21 */
{ 119, 0x0564 }, /* R119 - EQ22 */
{ 120, 0x0559 }, /* R120 - EQ23 */
{ 121, 0x4000 }, /* R121 - EQ24 */
{ 122, 0x0000 }, /* R122 - Digital Pulls */
{ 123, 0x0F08 }, /* R123 - DRC Control 1 */
{ 124, 0x0000 }, /* R124 - DRC Control 2 */
{ 125, 0x0080 }, /* R125 - DRC Control 3 */
{ 126, 0x0000 }, /* R126 - DRC Control 4 */
};
static struct {
int ratio;
int clk_sys_rate;
} clk_sys_rates[] = {
{ 64, 0 },
{ 128, 1 },
{ 192, 2 },
{ 256, 3 },
{ 384, 4 },
{ 512, 5 },
{ 768, 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 },
{ 55, 5 },
{ 60, 6 },
{ 80, 7 },
{ 110, 8 },
{ 120, 9 },
{ 160, 10 },
{ 220, 11 },
{ 240, 12 },
{ 320, 13 },
{ 440, 14 },
{ 480, 15 },
};
struct wm8993_priv {
struct wm_hubs_data hubs_data;
struct device *dev;
struct regmap *regmap;
struct regulator_bulk_data supplies[WM8993_NUM_SUPPLIES];
struct wm8993_platform_data pdata;
struct completion fll_lock;
int master;
int sysclk_source;
int tdm_slots;
int tdm_width;
unsigned int mclk_rate;
unsigned int sysclk_rate;
unsigned int fs;
unsigned int bclk;
unsigned int fll_fref;
unsigned int fll_fout;
int fll_src;
};
static bool wm8993_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8993_SOFTWARE_RESET:
case WM8993_GPIO_CTRL_1:
case WM8993_DC_SERVO_0:
case WM8993_DC_SERVO_READBACK_0:
case WM8993_DC_SERVO_READBACK_1:
case WM8993_DC_SERVO_READBACK_2:
return true;
default:
return false;
}
}
static bool wm8993_readable(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8993_SOFTWARE_RESET:
case WM8993_POWER_MANAGEMENT_1:
case WM8993_POWER_MANAGEMENT_2:
case WM8993_POWER_MANAGEMENT_3:
case WM8993_AUDIO_INTERFACE_1:
case WM8993_AUDIO_INTERFACE_2:
case WM8993_CLOCKING_1:
case WM8993_CLOCKING_2:
case WM8993_AUDIO_INTERFACE_3:
case WM8993_AUDIO_INTERFACE_4:
case WM8993_DAC_CTRL:
case WM8993_LEFT_DAC_DIGITAL_VOLUME:
case WM8993_RIGHT_DAC_DIGITAL_VOLUME:
case WM8993_DIGITAL_SIDE_TONE:
case WM8993_ADC_CTRL:
case WM8993_LEFT_ADC_DIGITAL_VOLUME:
case WM8993_RIGHT_ADC_DIGITAL_VOLUME:
case WM8993_GPIO_CTRL_1:
case WM8993_GPIO1:
case WM8993_IRQ_DEBOUNCE:
case WM8993_GPIOCTRL_2:
case WM8993_GPIO_POL:
case WM8993_LEFT_LINE_INPUT_1_2_VOLUME:
case WM8993_LEFT_LINE_INPUT_3_4_VOLUME:
case WM8993_RIGHT_LINE_INPUT_1_2_VOLUME:
case WM8993_RIGHT_LINE_INPUT_3_4_VOLUME:
case WM8993_LEFT_OUTPUT_VOLUME:
case WM8993_RIGHT_OUTPUT_VOLUME:
case WM8993_LINE_OUTPUTS_VOLUME:
case WM8993_HPOUT2_VOLUME:
case WM8993_LEFT_OPGA_VOLUME:
case WM8993_RIGHT_OPGA_VOLUME:
case WM8993_SPKMIXL_ATTENUATION:
case WM8993_SPKMIXR_ATTENUATION:
case WM8993_SPKOUT_MIXERS:
case WM8993_SPKOUT_BOOST:
case WM8993_SPEAKER_VOLUME_LEFT:
case WM8993_SPEAKER_VOLUME_RIGHT:
case WM8993_INPUT_MIXER2:
case WM8993_INPUT_MIXER3:
case WM8993_INPUT_MIXER4:
case WM8993_INPUT_MIXER5:
case WM8993_INPUT_MIXER6:
case WM8993_OUTPUT_MIXER1:
case WM8993_OUTPUT_MIXER2:
case WM8993_OUTPUT_MIXER3:
case WM8993_OUTPUT_MIXER4:
case WM8993_OUTPUT_MIXER5:
case WM8993_OUTPUT_MIXER6:
case WM8993_HPOUT2_MIXER:
case WM8993_LINE_MIXER1:
case WM8993_LINE_MIXER2:
case WM8993_SPEAKER_MIXER:
case WM8993_ADDITIONAL_CONTROL:
case WM8993_ANTIPOP1:
case WM8993_ANTIPOP2:
case WM8993_MICBIAS:
case WM8993_FLL_CONTROL_1:
case WM8993_FLL_CONTROL_2:
case WM8993_FLL_CONTROL_3:
case WM8993_FLL_CONTROL_4:
case WM8993_FLL_CONTROL_5:
case WM8993_CLOCKING_3:
case WM8993_CLOCKING_4:
case WM8993_MW_SLAVE_CONTROL:
case WM8993_BUS_CONTROL_1:
case WM8993_WRITE_SEQUENCER_0:
case WM8993_WRITE_SEQUENCER_1:
case WM8993_WRITE_SEQUENCER_2:
case WM8993_WRITE_SEQUENCER_3:
case WM8993_WRITE_SEQUENCER_4:
case WM8993_WRITE_SEQUENCER_5:
case WM8993_CHARGE_PUMP_1:
case WM8993_CLASS_W_0:
case WM8993_DC_SERVO_0:
case WM8993_DC_SERVO_1:
case WM8993_DC_SERVO_3:
case WM8993_DC_SERVO_READBACK_0:
case WM8993_DC_SERVO_READBACK_1:
case WM8993_DC_SERVO_READBACK_2:
case WM8993_ANALOGUE_HP_0:
case WM8993_EQ1:
case WM8993_EQ2:
case WM8993_EQ3:
case WM8993_EQ4:
case WM8993_EQ5:
case WM8993_EQ6:
case WM8993_EQ7:
case WM8993_EQ8:
case WM8993_EQ9:
case WM8993_EQ10:
case WM8993_EQ11:
case WM8993_EQ12:
case WM8993_EQ13:
case WM8993_EQ14:
case WM8993_EQ15:
case WM8993_EQ16:
case WM8993_EQ17:
case WM8993_EQ18:
case WM8993_EQ19:
case WM8993_EQ20:
case WM8993_EQ21:
case WM8993_EQ22:
case WM8993_EQ23:
case WM8993_EQ24:
case WM8993_DIGITAL_PULLS:
case WM8993_DRC_CONTROL_1:
case WM8993_DRC_CONTROL_2:
case WM8993_DRC_CONTROL_3:
case WM8993_DRC_CONTROL_4:
return true;
default:
return false;
}
}
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 = 0;
target = Fout * 2;
while (target < 90000000) {
div++;
target *= 2;
if (div > 7) {
pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
Fout);
return -EINVAL;
}
}
fll_div->fll_outdiv = div;
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 & 0xFFFFFFFF;
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 _wm8993_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
unsigned int Fref, unsigned int Fout)
{
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
struct i2c_client *i2c = to_i2c_client(codec->dev);
u16 reg1, reg4, reg5;
struct _fll_div fll_div;
unsigned int timeout;
int ret;
/* Any change? */
if (Fref == wm8993->fll_fref && Fout == wm8993->fll_fout)
return 0;
/* Disable the FLL */
if (Fout == 0) {
dev_dbg(codec->dev, "FLL disabled\n");
wm8993->fll_fref = 0;
wm8993->fll_fout = 0;
reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
reg1 &= ~WM8993_FLL_ENA;
snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
return 0;
}
ret = fll_factors(&fll_div, Fref, Fout);
if (ret != 0)
return ret;
reg5 = snd_soc_read(codec, WM8993_FLL_CONTROL_5);
reg5 &= ~WM8993_FLL_CLK_SRC_MASK;
switch (fll_id) {
case WM8993_FLL_MCLK:
break;
case WM8993_FLL_LRCLK:
reg5 |= 1;
break;
case WM8993_FLL_BCLK:
reg5 |= 2;
break;
default:
dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id);
return -EINVAL;
}
/* Any FLL configuration change requires that the FLL be
* disabled first. */
reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
reg1 &= ~WM8993_FLL_ENA;
snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
/* Apply the configuration */
if (fll_div.k)
reg1 |= WM8993_FLL_FRAC_MASK;
else
reg1 &= ~WM8993_FLL_FRAC_MASK;
snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
snd_soc_write(codec, WM8993_FLL_CONTROL_2,
(fll_div.fll_outdiv << WM8993_FLL_OUTDIV_SHIFT) |
(fll_div.fll_fratio << WM8993_FLL_FRATIO_SHIFT));
snd_soc_write(codec, WM8993_FLL_CONTROL_3, fll_div.k);
reg4 = snd_soc_read(codec, WM8993_FLL_CONTROL_4);
reg4 &= ~WM8993_FLL_N_MASK;
reg4 |= fll_div.n << WM8993_FLL_N_SHIFT;
snd_soc_write(codec, WM8993_FLL_CONTROL_4, reg4);
reg5 &= ~WM8993_FLL_CLK_REF_DIV_MASK;
reg5 |= fll_div.fll_clk_ref_div << WM8993_FLL_CLK_REF_DIV_SHIFT;
snd_soc_write(codec, WM8993_FLL_CONTROL_5, reg5);
/* If we've got an interrupt wired up make sure we get it */
if (i2c->irq)
timeout = msecs_to_jiffies(20);
else if (Fref < 1000000)
timeout = msecs_to_jiffies(3);
else
timeout = msecs_to_jiffies(1);
try_wait_for_completion(&wm8993->fll_lock);
/* Enable the FLL */
snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1 | WM8993_FLL_ENA);
timeout = wait_for_completion_timeout(&wm8993->fll_lock, timeout);
if (i2c->irq && !timeout)
dev_warn(codec->dev, "Timed out waiting for FLL\n");
dev_dbg(codec->dev, "FLL enabled at %dHz->%dHz\n", Fref, Fout);
wm8993->fll_fref = Fref;
wm8993->fll_fout = Fout;
wm8993->fll_src = source;
return 0;
}
static int wm8993_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
unsigned int Fref, unsigned int Fout)
{
return _wm8993_set_fll(dai->codec, fll_id, source, Fref, Fout);
}
static int configure_clock(struct snd_soc_codec *codec)
{
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
unsigned int reg;
/* This should be done on init() for bypass paths */
switch (wm8993->sysclk_source) {
case WM8993_SYSCLK_MCLK:
dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8993->mclk_rate);
reg = snd_soc_read(codec, WM8993_CLOCKING_2);
reg &= ~(WM8993_MCLK_DIV | WM8993_SYSCLK_SRC);
if (wm8993->mclk_rate > 13500000) {
reg |= WM8993_MCLK_DIV;
wm8993->sysclk_rate = wm8993->mclk_rate / 2;
} else {
reg &= ~WM8993_MCLK_DIV;
wm8993->sysclk_rate = wm8993->mclk_rate;
}
snd_soc_write(codec, WM8993_CLOCKING_2, reg);
break;
case WM8993_SYSCLK_FLL:
dev_dbg(codec->dev, "Using %dHz FLL clock\n",
wm8993->fll_fout);
reg = snd_soc_read(codec, WM8993_CLOCKING_2);
reg |= WM8993_SYSCLK_SRC;
if (wm8993->fll_fout > 13500000) {
reg |= WM8993_MCLK_DIV;
wm8993->sysclk_rate = wm8993->fll_fout / 2;
} else {
reg &= ~WM8993_MCLK_DIV;
wm8993->sysclk_rate = wm8993->fll_fout;
}
snd_soc_write(codec, WM8993_CLOCKING_2, reg);
break;
default:
dev_err(codec->dev, "System clock not configured\n");
return -EINVAL;
}
dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8993->sysclk_rate);
return 0;
}
static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0);
static const DECLARE_TLV_DB_SCALE(drc_comp_threash, -4500, 75, 0);
static const DECLARE_TLV_DB_SCALE(drc_comp_amp, -2250, 75, 0);
static const DECLARE_TLV_DB_SCALE(drc_min_tlv, -1800, 600, 0);
static const DECLARE_TLV_DB_RANGE(drc_max_tlv,
0, 2, TLV_DB_SCALE_ITEM(1200, 600, 0),
3, 3, TLV_DB_SCALE_ITEM(3600, 0, 0)
);
static const DECLARE_TLV_DB_SCALE(drc_qr_tlv, 1200, 600, 0);
static const DECLARE_TLV_DB_SCALE(drc_startup_tlv, -1800, 300, 0);
static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
static const char *dac_deemph_text[] = {
"None",
"32kHz",
"44.1kHz",
"48kHz",
};
static SOC_ENUM_SINGLE_DECL(dac_deemph,
WM8993_DAC_CTRL, 4, dac_deemph_text);
static const char *adc_hpf_text[] = {
"Hi-Fi",
"Voice 1",
"Voice 2",
"Voice 3",
};
static SOC_ENUM_SINGLE_DECL(adc_hpf,
WM8993_ADC_CTRL, 5, adc_hpf_text);
static const char *drc_path_text[] = {
"ADC",
"DAC"
};
static SOC_ENUM_SINGLE_DECL(drc_path,
WM8993_DRC_CONTROL_1, 14, drc_path_text);
static const char *drc_r0_text[] = {
"1",
"1/2",
"1/4",
"1/8",
"1/16",
"0",
};
static SOC_ENUM_SINGLE_DECL(drc_r0,
WM8993_DRC_CONTROL_3, 8, drc_r0_text);
static const char *drc_r1_text[] = {
"1",
"1/2",
"1/4",
"1/8",
"0",
};
static SOC_ENUM_SINGLE_DECL(drc_r1,
WM8993_DRC_CONTROL_4, 13, drc_r1_text);
static const char *drc_attack_text[] = {
"Reserved",
"181us",
"363us",
"726us",
"1.45ms",
"2.9ms",
"5.8ms",
"11.6ms",
"23.2ms",
"46.4ms",
"92.8ms",
"185.6ms",
};
static SOC_ENUM_SINGLE_DECL(drc_attack,
WM8993_DRC_CONTROL_2, 12, drc_attack_text);
static const char *drc_decay_text[] = {
"186ms",
"372ms",
"743ms",
"1.49s",
"2.97ms",
"5.94ms",
"11.89ms",
"23.78ms",
"47.56ms",
};
static SOC_ENUM_SINGLE_DECL(drc_decay,
WM8993_DRC_CONTROL_2, 8, drc_decay_text);
static const char *drc_ff_text[] = {
"5 samples",
"9 samples",
};
static SOC_ENUM_SINGLE_DECL(drc_ff,
WM8993_DRC_CONTROL_3, 7, drc_ff_text);
static const char *drc_qr_rate_text[] = {
"0.725ms",
"1.45ms",
"5.8ms",
};
static SOC_ENUM_SINGLE_DECL(drc_qr_rate,
WM8993_DRC_CONTROL_3, 0, drc_qr_rate_text);
static const char *drc_smooth_text[] = {
"Low",
"Medium",
"High",
};
static SOC_ENUM_SINGLE_DECL(drc_smooth,
WM8993_DRC_CONTROL_1, 4, drc_smooth_text);
static const struct snd_kcontrol_new wm8993_snd_controls[] = {
SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8993_DIGITAL_SIDE_TONE,
5, 9, 12, 0, sidetone_tlv),
SOC_SINGLE("DRC Switch", WM8993_DRC_CONTROL_1, 15, 1, 0),
SOC_ENUM("DRC Path", drc_path),
SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8993_DRC_CONTROL_2,
2, 60, 1, drc_comp_threash),
SOC_SINGLE_TLV("DRC Compressor Amplitude Volume", WM8993_DRC_CONTROL_3,
11, 30, 1, drc_comp_amp),
SOC_ENUM("DRC R0", drc_r0),
SOC_ENUM("DRC R1", drc_r1),
SOC_SINGLE_TLV("DRC Minimum Volume", WM8993_DRC_CONTROL_1, 2, 3, 1,
drc_min_tlv),
SOC_SINGLE_TLV("DRC Maximum Volume", WM8993_DRC_CONTROL_1, 0, 3, 0,
drc_max_tlv),
SOC_ENUM("DRC Attack Rate", drc_attack),
SOC_ENUM("DRC Decay Rate", drc_decay),
SOC_ENUM("DRC FF Delay", drc_ff),
SOC_SINGLE("DRC Anti-clip Switch", WM8993_DRC_CONTROL_1, 9, 1, 0),
SOC_SINGLE("DRC Quick Release Switch", WM8993_DRC_CONTROL_1, 10, 1, 0),
SOC_SINGLE_TLV("DRC Quick Release Volume", WM8993_DRC_CONTROL_3, 2, 3, 0,
drc_qr_tlv),
SOC_ENUM("DRC Quick Release Rate", drc_qr_rate),
SOC_SINGLE("DRC Smoothing Switch", WM8993_DRC_CONTROL_1, 11, 1, 0),
SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8993_DRC_CONTROL_1, 8, 1, 0),
SOC_ENUM("DRC Smoothing Hysteresis Threshold", drc_smooth),
SOC_SINGLE_TLV("DRC Startup Volume", WM8993_DRC_CONTROL_4, 8, 18, 0,
drc_startup_tlv),
SOC_SINGLE("EQ Switch", WM8993_EQ1, 0, 1, 0),
SOC_DOUBLE_R_TLV("Capture Volume", WM8993_LEFT_ADC_DIGITAL_VOLUME,
WM8993_RIGHT_ADC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
SOC_SINGLE("ADC High Pass Filter Switch", WM8993_ADC_CTRL, 8, 1, 0),
SOC_ENUM("ADC High Pass Filter Mode", adc_hpf),
SOC_DOUBLE_R_TLV("Playback Volume", WM8993_LEFT_DAC_DIGITAL_VOLUME,
WM8993_RIGHT_DAC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
SOC_SINGLE_TLV("Playback Boost Volume", WM8993_AUDIO_INTERFACE_2, 10, 3, 0,
dac_boost_tlv),
SOC_ENUM("DAC Deemphasis", dac_deemph),
SOC_SINGLE_TLV("SPKL DAC Volume", WM8993_SPKMIXL_ATTENUATION,
2, 1, 1, wm_hubs_spkmix_tlv),
SOC_SINGLE_TLV("SPKR DAC Volume", WM8993_SPKMIXR_ATTENUATION,
2, 1, 1, wm_hubs_spkmix_tlv),
};
static const struct snd_kcontrol_new wm8993_eq_controls[] = {
SOC_SINGLE_TLV("EQ1 Volume", WM8993_EQ2, 0, 24, 0, eq_tlv),
SOC_SINGLE_TLV("EQ2 Volume", WM8993_EQ3, 0, 24, 0, eq_tlv),
SOC_SINGLE_TLV("EQ3 Volume", WM8993_EQ4, 0, 24, 0, eq_tlv),
SOC_SINGLE_TLV("EQ4 Volume", WM8993_EQ5, 0, 24, 0, eq_tlv),
SOC_SINGLE_TLV("EQ5 Volume", WM8993_EQ6, 0, 24, 0, eq_tlv),
};
static int clk_sys_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
return configure_clock(codec);
case SND_SOC_DAPM_POST_PMD:
break;
}
return 0;
}
static const struct snd_kcontrol_new left_speaker_mixer[] = {
SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 7, 1, 0),
SOC_DAPM_SINGLE("IN1LP Switch", WM8993_SPEAKER_MIXER, 5, 1, 0),
SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 3, 1, 0),
SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
};
static const struct snd_kcontrol_new right_speaker_mixer[] = {
SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
SOC_DAPM_SINGLE("IN1RP Switch", WM8993_SPEAKER_MIXER, 4, 1, 0),
SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 2, 1, 0),
SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 0, 1, 0),
};
static const char *aif_text[] = {
"Left", "Right"
};
static SOC_ENUM_SINGLE_DECL(aifoutl_enum,
WM8993_AUDIO_INTERFACE_1, 15, aif_text);
static const struct snd_kcontrol_new aifoutl_mux =
SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum);
static SOC_ENUM_SINGLE_DECL(aifoutr_enum,
WM8993_AUDIO_INTERFACE_1, 14, aif_text);
static const struct snd_kcontrol_new aifoutr_mux =
SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum);
static SOC_ENUM_SINGLE_DECL(aifinl_enum,
WM8993_AUDIO_INTERFACE_2, 15, aif_text);
static const struct snd_kcontrol_new aifinl_mux =
SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum);
static SOC_ENUM_SINGLE_DECL(aifinr_enum,
WM8993_AUDIO_INTERFACE_2, 14, aif_text);
static const struct snd_kcontrol_new aifinr_mux =
SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum);
static const char *sidetone_text[] = {
"None", "Left", "Right"
};
static SOC_ENUM_SINGLE_DECL(sidetonel_enum,
WM8993_DIGITAL_SIDE_TONE, 2, sidetone_text);
static const struct snd_kcontrol_new sidetonel_mux =
SOC_DAPM_ENUM("Left Sidetone", sidetonel_enum);
static SOC_ENUM_SINGLE_DECL(sidetoner_enum,
WM8993_DIGITAL_SIDE_TONE, 0, sidetone_text);
static const struct snd_kcontrol_new sidetoner_mux =
SOC_DAPM_ENUM("Right Sidetone", sidetoner_enum);
static const struct snd_soc_dapm_widget wm8993_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8993_BUS_CONTROL_1, 1, 0, clk_sys_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("TOCLK", WM8993_CLOCKING_1, 14, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8993_CLOCKING_3, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VMID", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_ADC("ADCL", NULL, WM8993_POWER_MANAGEMENT_2, 1, 0),
SND_SOC_DAPM_ADC("ADCR", NULL, WM8993_POWER_MANAGEMENT_2, 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),
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_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &sidetonel_mux),
SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &sidetoner_mux),
SND_SOC_DAPM_DAC("DACL", NULL, WM8993_POWER_MANAGEMENT_3, 1, 0),
SND_SOC_DAPM_DAC("DACR", NULL, WM8993_POWER_MANAGEMENT_3, 0, 0),
SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &wm_hubs_hpl_mux),
SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &wm_hubs_hpr_mux),
SND_SOC_DAPM_MIXER("SPKL", WM8993_POWER_MANAGEMENT_3, 8, 0,
left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
SND_SOC_DAPM_MIXER("SPKR", WM8993_POWER_MANAGEMENT_3, 9, 0,
right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
SND_SOC_DAPM_PGA("Direct Voice", SND_SOC_NOPM, 0, 0, NULL, 0),
};
static const struct snd_soc_dapm_route routes[] = {
{ "MICBIAS1", NULL, "VMID" },
{ "MICBIAS2", NULL, "VMID" },
{ "ADCL", NULL, "CLK_SYS" },
{ "ADCL", NULL, "CLK_DSP" },
{ "ADCR", NULL, "CLK_SYS" },
{ "ADCR", NULL, "CLK_DSP" },
{ "AIFOUTL Mux", "Left", "ADCL" },
{ "AIFOUTL Mux", "Right", "ADCR" },
{ "AIFOUTR Mux", "Left", "ADCL" },
{ "AIFOUTR Mux", "Right", "ADCR" },
{ "AIFOUTL", NULL, "AIFOUTL Mux" },
{ "AIFOUTR", NULL, "AIFOUTR Mux" },
{ "DACL Mux", "Left", "AIFINL" },
{ "DACL Mux", "Right", "AIFINR" },
{ "DACR Mux", "Left", "AIFINL" },
{ "DACR Mux", "Right", "AIFINR" },
{ "DACL Sidetone", "Left", "ADCL" },
{ "DACL Sidetone", "Right", "ADCR" },
{ "DACR Sidetone", "Left", "ADCL" },
{ "DACR Sidetone", "Right", "ADCR" },
{ "DACL", NULL, "CLK_SYS" },
{ "DACL", NULL, "CLK_DSP" },
{ "DACL", NULL, "DACL Mux" },
{ "DACL", NULL, "DACL Sidetone" },
{ "DACR", NULL, "CLK_SYS" },
{ "DACR", NULL, "CLK_DSP" },
{ "DACR", NULL, "DACR Mux" },
{ "DACR", NULL, "DACR Sidetone" },
{ "Left Output Mixer", "DAC Switch", "DACL" },
{ "Right Output Mixer", "DAC Switch", "DACR" },
{ "Left Output PGA", NULL, "CLK_SYS" },
{ "Right Output PGA", NULL, "CLK_SYS" },
{ "SPKL", "DAC Switch", "DACL" },
{ "SPKL", NULL, "CLK_SYS" },
{ "SPKR", "DAC Switch", "DACR" },
{ "SPKR", NULL, "CLK_SYS" },
{ "Left Headphone Mux", "DAC", "DACL" },
{ "Right Headphone Mux", "DAC", "DACR" },
};
static int wm8993_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
int ret;
wm_hubs_set_bias_level(codec, level);
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
/* VMID=2*40k */
snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
WM8993_VMID_SEL_MASK, 0x2);
snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
WM8993_TSHUT_ENA, WM8993_TSHUT_ENA);
break;
case SND_SOC_BIAS_STANDBY:
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
wm8993->supplies);
if (ret != 0)
return ret;
regcache_cache_only(wm8993->regmap, false);
regcache_sync(wm8993->regmap);
wm_hubs_vmid_ena(codec);
/* Bring up VMID with fast soft start */
snd_soc_update_bits(codec, WM8993_ANTIPOP2,
WM8993_STARTUP_BIAS_ENA |
WM8993_VMID_BUF_ENA |
WM8993_VMID_RAMP_MASK |
WM8993_BIAS_SRC,
WM8993_STARTUP_BIAS_ENA |
WM8993_VMID_BUF_ENA |
WM8993_VMID_RAMP_MASK |
WM8993_BIAS_SRC);
/* If either line output is single ended we
* need the VMID buffer */
if (!wm8993->pdata.lineout1_diff ||
!wm8993->pdata.lineout2_diff)
snd_soc_update_bits(codec, WM8993_ANTIPOP1,
WM8993_LINEOUT_VMID_BUF_ENA,
WM8993_LINEOUT_VMID_BUF_ENA);
/* VMID=2*40k */
snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
WM8993_VMID_SEL_MASK |
WM8993_BIAS_ENA,
WM8993_BIAS_ENA | 0x2);
msleep(32);
/* Switch to normal bias */
snd_soc_update_bits(codec, WM8993_ANTIPOP2,
WM8993_BIAS_SRC |
WM8993_STARTUP_BIAS_ENA, 0);
}
/* VMID=2*240k */
snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
WM8993_VMID_SEL_MASK, 0x4);
snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
WM8993_TSHUT_ENA, 0);
break;
case SND_SOC_BIAS_OFF:
snd_soc_update_bits(codec, WM8993_ANTIPOP1,
WM8993_LINEOUT_VMID_BUF_ENA, 0);
snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
WM8993_VMID_SEL_MASK | WM8993_BIAS_ENA,
0);
snd_soc_update_bits(codec, WM8993_ANTIPOP2,
WM8993_STARTUP_BIAS_ENA |
WM8993_VMID_BUF_ENA |
WM8993_VMID_RAMP_MASK |
WM8993_BIAS_SRC, 0);
regcache_cache_only(wm8993->regmap, true);
regcache_mark_dirty(wm8993->regmap);
regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies),
wm8993->supplies);
break;
}
return 0;
}
static int wm8993_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 wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
switch (clk_id) {
case WM8993_SYSCLK_MCLK:
wm8993->mclk_rate = freq;
/* fall through */
case WM8993_SYSCLK_FLL:
wm8993->sysclk_source = clk_id;
break;
default:
return -EINVAL;
}
return 0;
}
static int wm8993_set_dai_fmt(struct snd_soc_dai *dai,
unsigned int fmt)
{
struct snd_soc_codec *codec = dai->codec;
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
unsigned int aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
unsigned int aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
aif1 &= ~(WM8993_BCLK_DIR | WM8993_AIF_BCLK_INV |
WM8993_AIF_LRCLK_INV | WM8993_AIF_FMT_MASK);
aif4 &= ~WM8993_LRCLK_DIR;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
wm8993->master = 0;
break;
case SND_SOC_DAIFMT_CBS_CFM:
aif4 |= WM8993_LRCLK_DIR;
wm8993->master = 1;
break;
case SND_SOC_DAIFMT_CBM_CFS:
aif1 |= WM8993_BCLK_DIR;
wm8993->master = 1;
break;
case SND_SOC_DAIFMT_CBM_CFM:
aif1 |= WM8993_BCLK_DIR;
aif4 |= WM8993_LRCLK_DIR;
wm8993->master = 1;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_DSP_B:
aif1 |= WM8993_AIF_LRCLK_INV;
/* fall through */
case SND_SOC_DAIFMT_DSP_A:
aif1 |= 0x18;
break;
case SND_SOC_DAIFMT_I2S:
aif1 |= 0x10;
break;
case SND_SOC_DAIFMT_RIGHT_J:
break;
case SND_SOC_DAIFMT_LEFT_J:
aif1 |= 0x8;
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 |= WM8993_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 |= WM8993_AIF_BCLK_INV | WM8993_AIF_LRCLK_INV;
break;
case SND_SOC_DAIFMT_IB_NF:
aif1 |= WM8993_AIF_BCLK_INV;
break;
case SND_SOC_DAIFMT_NB_IF:
aif1 |= WM8993_AIF_LRCLK_INV;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
return 0;
}
static int wm8993_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 wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
int ret, i, best, best_val, cur_val;
unsigned int clocking1, clocking3, aif1, aif4;
clocking1 = snd_soc_read(codec, WM8993_CLOCKING_1);
clocking1 &= ~WM8993_BCLK_DIV_MASK;
clocking3 = snd_soc_read(codec, WM8993_CLOCKING_3);
clocking3 &= ~(WM8993_CLK_SYS_RATE_MASK | WM8993_SAMPLE_RATE_MASK);
aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
aif1 &= ~WM8993_AIF_WL_MASK;
aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
aif4 &= ~WM8993_LRCLK_RATE_MASK;
/* What BCLK do we need? */
wm8993->fs = params_rate(params);
wm8993->bclk = 2 * wm8993->fs;
if (wm8993->tdm_slots) {
dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n",
wm8993->tdm_slots, wm8993->tdm_width);
wm8993->bclk *= wm8993->tdm_width * wm8993->tdm_slots;
} else {
switch (params_width(params)) {
case 16:
wm8993->bclk *= 16;
break;
case 20:
wm8993->bclk *= 20;
aif1 |= 0x8;
break;
case 24:
wm8993->bclk *= 24;
aif1 |= 0x10;
break;
case 32:
wm8993->bclk *= 32;
aif1 |= 0x18;
break;
default:
return -EINVAL;
}
}
dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8993->bclk);
ret = configure_clock(codec);
if (ret != 0)
return ret;
/* Select nearest CLK_SYS_RATE */
best = 0;
best_val = abs((wm8993->sysclk_rate / clk_sys_rates[0].ratio)
- wm8993->fs);
for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) {
cur_val = abs((wm8993->sysclk_rate /
clk_sys_rates[i].ratio) - wm8993->fs);
if (cur_val < best_val) {
best = i;
best_val = cur_val;
}
}
dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n",
clk_sys_rates[best].ratio);
clocking3 |= (clk_sys_rates[best].clk_sys_rate
<< WM8993_CLK_SYS_RATE_SHIFT);
/* SAMPLE_RATE */
best = 0;
best_val = abs(wm8993->fs - sample_rates[0].rate);
for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
/* Closest match */
cur_val = abs(wm8993->fs - sample_rates[i].rate);
if (cur_val < best_val) {
best = i;
best_val = cur_val;
}
}
dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n",
sample_rates[best].rate);
clocking3 |= (sample_rates[best].sample_rate
<< WM8993_SAMPLE_RATE_SHIFT);
/* BCLK_DIV */
best = 0;
best_val = INT_MAX;
for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
cur_val = ((wm8993->sysclk_rate * 10) / bclk_divs[i].div)
- wm8993->bclk;
if (cur_val < 0) /* Table is sorted */
break;
if (cur_val < best_val) {
best = i;
best_val = cur_val;
}
}
wm8993->bclk = (wm8993->sysclk_rate * 10) / bclk_divs[best].div;
dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n",
bclk_divs[best].div, wm8993->bclk);
clocking1 |= bclk_divs[best].bclk_div << WM8993_BCLK_DIV_SHIFT;
/* LRCLK is a simple fraction of BCLK */
dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8993->bclk / wm8993->fs);
aif4 |= wm8993->bclk / wm8993->fs;
snd_soc_write(codec, WM8993_CLOCKING_1, clocking1);
snd_soc_write(codec, WM8993_CLOCKING_3, clocking3);
snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
/* ReTune Mobile? */
if (wm8993->pdata.num_retune_configs) {
u16 eq1 = snd_soc_read(codec, WM8993_EQ1);
struct wm8993_retune_mobile_setting *s;
best = 0;
best_val = abs(wm8993->pdata.retune_configs[0].rate
- wm8993->fs);
for (i = 0; i < wm8993->pdata.num_retune_configs; i++) {
cur_val = abs(wm8993->pdata.retune_configs[i].rate
- wm8993->fs);
if (cur_val < best_val) {
best_val = cur_val;
best = i;
}
}
s = &wm8993->pdata.retune_configs[best];
dev_dbg(codec->dev, "ReTune Mobile %s tuned for %dHz\n",
s->name, s->rate);
/* Disable EQ while we reconfigure */
snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, 0);
for (i = 1; i < ARRAY_SIZE(s->config); i++)
snd_soc_write(codec, WM8993_EQ1 + i, s->config[i]);
snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, eq1);
}
return 0;
}
static int wm8993_digital_mute(struct snd_soc_dai *codec_dai, int mute)
{
struct snd_soc_codec *codec = codec_dai->codec;
unsigned int reg;
reg = snd_soc_read(codec, WM8993_DAC_CTRL);
if (mute)
reg |= WM8993_DAC_MUTE;
else
reg &= ~WM8993_DAC_MUTE;
snd_soc_write(codec, WM8993_DAC_CTRL, reg);
return 0;
}
static int wm8993_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
unsigned int rx_mask, int slots, int slot_width)
{
struct snd_soc_codec *codec = dai->codec;
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
int aif1 = 0;
int aif2 = 0;
/* Don't need to validate anything if we're turning off TDM */
if (slots == 0) {
wm8993->tdm_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 |= WM8993_AIFADC_TDM;
aif2 |= WM8993_AIFDAC_TDM;
switch (rx_mask) {
case 3:
break;
case 0xc:
aif1 |= WM8993_AIFADC_TDM_CHAN;
break;
default:
return -EINVAL;
}
switch (tx_mask) {
case 3:
break;
case 0xc:
aif2 |= WM8993_AIFDAC_TDM_CHAN;
break;
default:
return -EINVAL;
}
out:
wm8993->tdm_width = slot_width;
wm8993->tdm_slots = slots / 2;
snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_1,
WM8993_AIFADC_TDM | WM8993_AIFADC_TDM_CHAN, aif1);
snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_2,
WM8993_AIFDAC_TDM | WM8993_AIFDAC_TDM_CHAN, aif2);
return 0;
}
static irqreturn_t wm8993_irq(int irq, void *data)
{
struct wm8993_priv *wm8993 = data;
int mask, val, ret;
ret = regmap_read(wm8993->regmap, WM8993_GPIO_CTRL_1, &val);
if (ret != 0) {
dev_err(wm8993->dev, "Failed to read interrupt status: %d\n",
ret);
return IRQ_NONE;
}
ret = regmap_read(wm8993->regmap, WM8993_GPIOCTRL_2, &mask);
if (ret != 0) {
dev_err(wm8993->dev, "Failed to read interrupt mask: %d\n",
ret);
return IRQ_NONE;
}
/* The IRQ pin status is visible in the register too */
val &= ~(mask | WM8993_IRQ);
if (!val)
return IRQ_NONE;
if (val & WM8993_TEMPOK_EINT)
dev_crit(wm8993->dev, "Thermal warning\n");
if (val & WM8993_FLL_LOCK_EINT) {
dev_dbg(wm8993->dev, "FLL locked\n");
complete(&wm8993->fll_lock);
}
ret = regmap_write(wm8993->regmap, WM8993_GPIO_CTRL_1, val);
if (ret != 0)
dev_err(wm8993->dev, "Failed to ack interrupt: %d\n", ret);
return IRQ_HANDLED;
}
static const struct snd_soc_dai_ops wm8993_ops = {
.set_sysclk = wm8993_set_sysclk,
.set_fmt = wm8993_set_dai_fmt,
.hw_params = wm8993_hw_params,
.digital_mute = wm8993_digital_mute,
.set_pll = wm8993_set_fll,
.set_tdm_slot = wm8993_set_tdm_slot,
};
#define WM8993_RATES SNDRV_PCM_RATE_8000_48000
#define WM8993_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE |\
SNDRV_PCM_FMTBIT_S32_LE)
static struct snd_soc_dai_driver wm8993_dai = {
.name = "wm8993-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = WM8993_RATES,
.formats = WM8993_FORMATS,
.sig_bits = 24,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = WM8993_RATES,
.formats = WM8993_FORMATS,
.sig_bits = 24,
},
.ops = &wm8993_ops,
.symmetric_rates = 1,
};
static int wm8993_probe(struct snd_soc_codec *codec)
{
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
wm8993->hubs_data.hp_startup_mode = 1;
wm8993->hubs_data.dcs_codes_l = -2;
wm8993->hubs_data.dcs_codes_r = -2;
wm8993->hubs_data.series_startup = 1;
/* Latch volume update bits and default ZC on */
snd_soc_update_bits(codec, WM8993_RIGHT_DAC_DIGITAL_VOLUME,
WM8993_DAC_VU, WM8993_DAC_VU);
snd_soc_update_bits(codec, WM8993_RIGHT_ADC_DIGITAL_VOLUME,
WM8993_ADC_VU, WM8993_ADC_VU);
/* Manualy manage the HPOUT sequencing for independent stereo
* control. */
snd_soc_update_bits(codec, WM8993_ANALOGUE_HP_0,
WM8993_HPOUT1_AUTO_PU, 0);
/* Use automatic clock configuration */
snd_soc_update_bits(codec, WM8993_CLOCKING_4, WM8993_SR_MODE, 0);
wm_hubs_handle_analogue_pdata(codec, wm8993->pdata.lineout1_diff,
wm8993->pdata.lineout2_diff,
wm8993->pdata.lineout1fb,
wm8993->pdata.lineout2fb,
wm8993->pdata.jd_scthr,
wm8993->pdata.jd_thr,
wm8993->pdata.micbias1_delay,
wm8993->pdata.micbias2_delay,
wm8993->pdata.micbias1_lvl,
wm8993->pdata.micbias2_lvl);
snd_soc_add_codec_controls(codec, wm8993_snd_controls,
ARRAY_SIZE(wm8993_snd_controls));
if (wm8993->pdata.num_retune_configs != 0) {
dev_dbg(codec->dev, "Using ReTune Mobile\n");
} else {
dev_dbg(codec->dev, "No ReTune Mobile, using normal EQ\n");
snd_soc_add_codec_controls(codec, wm8993_eq_controls,
ARRAY_SIZE(wm8993_eq_controls));
}
snd_soc_dapm_new_controls(dapm, wm8993_dapm_widgets,
ARRAY_SIZE(wm8993_dapm_widgets));
wm_hubs_add_analogue_controls(codec);
snd_soc_dapm_add_routes(dapm, routes, ARRAY_SIZE(routes));
wm_hubs_add_analogue_routes(codec, wm8993->pdata.lineout1_diff,
wm8993->pdata.lineout2_diff);
/* If the line outputs are differential then we aren't presenting
* VMID as an output and can disable it.
*/
if (wm8993->pdata.lineout1_diff && wm8993->pdata.lineout2_diff)
dapm->idle_bias_off = 1;
return 0;
}
#ifdef CONFIG_PM
static int wm8993_suspend(struct snd_soc_codec *codec)
{
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
int fll_fout = wm8993->fll_fout;
int fll_fref = wm8993->fll_fref;
int ret;
/* Stop the FLL in an orderly fashion */
ret = _wm8993_set_fll(codec, 0, 0, 0, 0);
if (ret != 0) {
dev_err(codec->dev, "Failed to stop FLL\n");
return ret;
}
wm8993->fll_fout = fll_fout;
wm8993->fll_fref = fll_fref;
snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static int wm8993_resume(struct snd_soc_codec *codec)
{
struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
int ret;
snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Restart the FLL? */
if (wm8993->fll_fout) {
int fll_fout = wm8993->fll_fout;
int fll_fref = wm8993->fll_fref;
wm8993->fll_fref = 0;
wm8993->fll_fout = 0;
ret = _wm8993_set_fll(codec, 0, wm8993->fll_src,
fll_fref, fll_fout);
if (ret != 0)
dev_err(codec->dev, "Failed to restart FLL\n");
}
return 0;
}
#else
#define wm8993_suspend NULL
#define wm8993_resume NULL
#endif
/* Tune DC servo configuration */
static const struct reg_sequence wm8993_regmap_patch[] = {
{ 0x44, 3 },
{ 0x56, 3 },
{ 0x44, 0 },
};
static const struct regmap_config wm8993_regmap = {
.reg_bits = 8,
.val_bits = 16,
.max_register = WM8993_MAX_REGISTER,
.volatile_reg = wm8993_volatile,
.readable_reg = wm8993_readable,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = wm8993_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm8993_reg_defaults),
};
static const struct snd_soc_codec_driver soc_codec_dev_wm8993 = {
.probe = wm8993_probe,
.suspend = wm8993_suspend,
.resume = wm8993_resume,
.set_bias_level = wm8993_set_bias_level,
};
static int wm8993_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct wm8993_priv *wm8993;
unsigned int reg;
int ret, i;
wm8993 = devm_kzalloc(&i2c->dev, sizeof(struct wm8993_priv),
GFP_KERNEL);
if (wm8993 == NULL)
return -ENOMEM;
wm8993->dev = &i2c->dev;
init_completion(&wm8993->fll_lock);
wm8993->regmap = devm_regmap_init_i2c(i2c, &wm8993_regmap);
if (IS_ERR(wm8993->regmap)) {
ret = PTR_ERR(wm8993->regmap);
dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
return ret;
}
i2c_set_clientdata(i2c, wm8993);
for (i = 0; i < ARRAY_SIZE(wm8993->supplies); i++)
wm8993->supplies[i].supply = wm8993_supply_names[i];
ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8993->supplies),
wm8993->supplies);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
wm8993->supplies);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
return ret;
}
ret = regmap_read(wm8993->regmap, WM8993_SOFTWARE_RESET, &reg);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
goto err_enable;
}
if (reg != 0x8993) {
dev_err(&i2c->dev, "Invalid ID register value %x\n", reg);
ret = -EINVAL;
goto err_enable;
}
ret = regmap_write(wm8993->regmap, WM8993_SOFTWARE_RESET, 0xffff);
if (ret != 0)
goto err_enable;
ret = regmap_register_patch(wm8993->regmap, wm8993_regmap_patch,
ARRAY_SIZE(wm8993_regmap_patch));
if (ret != 0)
dev_warn(wm8993->dev, "Failed to apply regmap patch: %d\n",
ret);
if (i2c->irq) {
/* Put GPIO1 into interrupt mode (only GPIO1 can output IRQ) */
ret = regmap_update_bits(wm8993->regmap, WM8993_GPIO1,
WM8993_GPIO1_PD |
WM8993_GPIO1_SEL_MASK, 7);
if (ret != 0)
goto err_enable;
ret = request_threaded_irq(i2c->irq, NULL, wm8993_irq,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"wm8993", wm8993);
if (ret != 0)
goto err_enable;
}
regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
regcache_cache_only(wm8993->regmap, true);
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8993, &wm8993_dai, 1);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
goto err_irq;
}
return 0;
err_irq:
if (i2c->irq)
free_irq(i2c->irq, wm8993);
err_enable:
regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
return ret;
}
static int wm8993_i2c_remove(struct i2c_client *i2c)
{
struct wm8993_priv *wm8993 = i2c_get_clientdata(i2c);
snd_soc_unregister_codec(&i2c->dev);
if (i2c->irq)
free_irq(i2c->irq, wm8993);
regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
return 0;
}
static const struct i2c_device_id wm8993_i2c_id[] = {
{ "wm8993", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8993_i2c_id);
static struct i2c_driver wm8993_i2c_driver = {
.driver = {
.name = "wm8993",
},
.probe = wm8993_i2c_probe,
.remove = wm8993_i2c_remove,
.id_table = wm8993_i2c_id,
};
module_i2c_driver(wm8993_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8993 driver");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");