- 根目录:
- sound
- soc
- codecs
- adav80x.c
/*
* ADAV80X Audio Codec driver supporting ADAV801, ADAV803
*
* Copyright 2011 Analog Devices Inc.
* Author: Yi Li <yi.li@analog.com>
* Author: Lars-Peter Clausen <lars@metafoo.de>
*
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "adav80x.h"
#define ADAV80X_PLAYBACK_CTRL 0x04
#define ADAV80X_AUX_IN_CTRL 0x05
#define ADAV80X_REC_CTRL 0x06
#define ADAV80X_AUX_OUT_CTRL 0x07
#define ADAV80X_DPATH_CTRL1 0x62
#define ADAV80X_DPATH_CTRL2 0x63
#define ADAV80X_DAC_CTRL1 0x64
#define ADAV80X_DAC_CTRL2 0x65
#define ADAV80X_DAC_CTRL3 0x66
#define ADAV80X_DAC_L_VOL 0x68
#define ADAV80X_DAC_R_VOL 0x69
#define ADAV80X_PGA_L_VOL 0x6c
#define ADAV80X_PGA_R_VOL 0x6d
#define ADAV80X_ADC_CTRL1 0x6e
#define ADAV80X_ADC_CTRL2 0x6f
#define ADAV80X_ADC_L_VOL 0x70
#define ADAV80X_ADC_R_VOL 0x71
#define ADAV80X_PLL_CTRL1 0x74
#define ADAV80X_PLL_CTRL2 0x75
#define ADAV80X_ICLK_CTRL1 0x76
#define ADAV80X_ICLK_CTRL2 0x77
#define ADAV80X_PLL_CLK_SRC 0x78
#define ADAV80X_PLL_OUTE 0x7a
#define ADAV80X_PLL_CLK_SRC_PLL_XIN(pll) 0x00
#define ADAV80X_PLL_CLK_SRC_PLL_MCLKI(pll) (0x40 << (pll))
#define ADAV80X_PLL_CLK_SRC_PLL_MASK(pll) (0x40 << (pll))
#define ADAV80X_ICLK_CTRL1_DAC_SRC(src) ((src) << 5)
#define ADAV80X_ICLK_CTRL1_ADC_SRC(src) ((src) << 2)
#define ADAV80X_ICLK_CTRL1_ICLK2_SRC(src) (src)
#define ADAV80X_ICLK_CTRL2_ICLK1_SRC(src) ((src) << 3)
#define ADAV80X_PLL_CTRL1_PLLDIV 0x10
#define ADAV80X_PLL_CTRL1_PLLPD(pll) (0x04 << (pll))
#define ADAV80X_PLL_CTRL1_XTLPD 0x02
#define ADAV80X_PLL_CTRL2_FIELD(pll, x) ((x) << ((pll) * 4))
#define ADAV80X_PLL_CTRL2_FS_48(pll) ADAV80X_PLL_CTRL2_FIELD((pll), 0x00)
#define ADAV80X_PLL_CTRL2_FS_32(pll) ADAV80X_PLL_CTRL2_FIELD((pll), 0x08)
#define ADAV80X_PLL_CTRL2_FS_44(pll) ADAV80X_PLL_CTRL2_FIELD((pll), 0x0c)
#define ADAV80X_PLL_CTRL2_SEL(pll) ADAV80X_PLL_CTRL2_FIELD((pll), 0x02)
#define ADAV80X_PLL_CTRL2_DOUB(pll) ADAV80X_PLL_CTRL2_FIELD((pll), 0x01)
#define ADAV80X_PLL_CTRL2_PLL_MASK(pll) ADAV80X_PLL_CTRL2_FIELD((pll), 0x0f)
#define ADAV80X_ADC_CTRL1_MODULATOR_MASK 0x80
#define ADAV80X_ADC_CTRL1_MODULATOR_128FS 0x00
#define ADAV80X_ADC_CTRL1_MODULATOR_64FS 0x80
#define ADAV80X_DAC_CTRL1_PD 0x80
#define ADAV80X_DAC_CTRL2_DIV1 0x00
#define ADAV80X_DAC_CTRL2_DIV1_5 0x10
#define ADAV80X_DAC_CTRL2_DIV2 0x20
#define ADAV80X_DAC_CTRL2_DIV3 0x30
#define ADAV80X_DAC_CTRL2_DIV_MASK 0x30
#define ADAV80X_DAC_CTRL2_INTERPOL_256FS 0x00
#define ADAV80X_DAC_CTRL2_INTERPOL_128FS 0x40
#define ADAV80X_DAC_CTRL2_INTERPOL_64FS 0x80
#define ADAV80X_DAC_CTRL2_INTERPOL_MASK 0xc0
#define ADAV80X_DAC_CTRL2_DEEMPH_NONE 0x00
#define ADAV80X_DAC_CTRL2_DEEMPH_44 0x01
#define ADAV80X_DAC_CTRL2_DEEMPH_32 0x02
#define ADAV80X_DAC_CTRL2_DEEMPH_48 0x03
#define ADAV80X_DAC_CTRL2_DEEMPH_MASK 0x01
#define ADAV80X_CAPTURE_MODE_MASTER 0x20
#define ADAV80X_CAPTURE_WORD_LEN24 0x00
#define ADAV80X_CAPTURE_WORD_LEN20 0x04
#define ADAV80X_CAPTRUE_WORD_LEN18 0x08
#define ADAV80X_CAPTURE_WORD_LEN16 0x0c
#define ADAV80X_CAPTURE_WORD_LEN_MASK 0x0c
#define ADAV80X_CAPTURE_MODE_LEFT_J 0x00
#define ADAV80X_CAPTURE_MODE_I2S 0x01
#define ADAV80X_CAPTURE_MODE_RIGHT_J 0x03
#define ADAV80X_CAPTURE_MODE_MASK 0x03
#define ADAV80X_PLAYBACK_MODE_MASTER 0x10
#define ADAV80X_PLAYBACK_MODE_LEFT_J 0x00
#define ADAV80X_PLAYBACK_MODE_I2S 0x01
#define ADAV80X_PLAYBACK_MODE_RIGHT_J_24 0x04
#define ADAV80X_PLAYBACK_MODE_RIGHT_J_20 0x05
#define ADAV80X_PLAYBACK_MODE_RIGHT_J_18 0x06
#define ADAV80X_PLAYBACK_MODE_RIGHT_J_16 0x07
#define ADAV80X_PLAYBACK_MODE_MASK 0x07
#define ADAV80X_PLL_OUTE_SYSCLKPD(x) BIT(2 - (x))
static struct reg_default adav80x_reg_defaults[] = {
{ ADAV80X_PLAYBACK_CTRL, 0x01 },
{ ADAV80X_AUX_IN_CTRL, 0x01 },
{ ADAV80X_REC_CTRL, 0x02 },
{ ADAV80X_AUX_OUT_CTRL, 0x01 },
{ ADAV80X_DPATH_CTRL1, 0xc0 },
{ ADAV80X_DPATH_CTRL2, 0x11 },
{ ADAV80X_DAC_CTRL1, 0x00 },
{ ADAV80X_DAC_CTRL2, 0x00 },
{ ADAV80X_DAC_CTRL3, 0x00 },
{ ADAV80X_DAC_L_VOL, 0xff },
{ ADAV80X_DAC_R_VOL, 0xff },
{ ADAV80X_PGA_L_VOL, 0x00 },
{ ADAV80X_PGA_R_VOL, 0x00 },
{ ADAV80X_ADC_CTRL1, 0x00 },
{ ADAV80X_ADC_CTRL2, 0x00 },
{ ADAV80X_ADC_L_VOL, 0xff },
{ ADAV80X_ADC_R_VOL, 0xff },
{ ADAV80X_PLL_CTRL1, 0x00 },
{ ADAV80X_PLL_CTRL2, 0x00 },
{ ADAV80X_ICLK_CTRL1, 0x00 },
{ ADAV80X_ICLK_CTRL2, 0x00 },
{ ADAV80X_PLL_CLK_SRC, 0x00 },
{ ADAV80X_PLL_OUTE, 0x00 },
};
struct adav80x {
struct regmap *regmap;
enum adav80x_clk_src clk_src;
unsigned int sysclk;
enum adav80x_pll_src pll_src;
unsigned int dai_fmt[2];
unsigned int rate;
bool deemph;
bool sysclk_pd[3];
};
static const char *adav80x_mux_text[] = {
"ADC",
"Playback",
"Aux Playback",
};
static const unsigned int adav80x_mux_values[] = {
0, 2, 3,
};
#define ADAV80X_MUX_ENUM_DECL(name, reg, shift) \
SOC_VALUE_ENUM_DOUBLE_DECL(name, reg, shift, 7, \
ARRAY_SIZE(adav80x_mux_text), adav80x_mux_text, \
adav80x_mux_values)
static ADAV80X_MUX_ENUM_DECL(adav80x_aux_capture_enum, ADAV80X_DPATH_CTRL1, 0);
static ADAV80X_MUX_ENUM_DECL(adav80x_capture_enum, ADAV80X_DPATH_CTRL1, 3);
static ADAV80X_MUX_ENUM_DECL(adav80x_dac_enum, ADAV80X_DPATH_CTRL2, 3);
static const struct snd_kcontrol_new adav80x_aux_capture_mux_ctrl =
SOC_DAPM_ENUM("Route", adav80x_aux_capture_enum);
static const struct snd_kcontrol_new adav80x_capture_mux_ctrl =
SOC_DAPM_ENUM("Route", adav80x_capture_enum);
static const struct snd_kcontrol_new adav80x_dac_mux_ctrl =
SOC_DAPM_ENUM("Route", adav80x_dac_enum);
#define ADAV80X_MUX(name, ctrl) \
SND_SOC_DAPM_MUX(name, SND_SOC_NOPM, 0, 0, ctrl)
static const struct snd_soc_dapm_widget adav80x_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC", NULL, ADAV80X_DAC_CTRL1, 7, 1),
SND_SOC_DAPM_ADC("ADC", NULL, ADAV80X_ADC_CTRL1, 5, 1),
SND_SOC_DAPM_PGA("Right PGA", ADAV80X_ADC_CTRL1, 0, 1, NULL, 0),
SND_SOC_DAPM_PGA("Left PGA", ADAV80X_ADC_CTRL1, 1, 1, NULL, 0),
SND_SOC_DAPM_AIF_OUT("AIFOUT", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("AIFIN", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("AIFAUXOUT", "Aux Capture", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("AIFAUXIN", "Aux Playback", 0, SND_SOC_NOPM, 0, 0),
ADAV80X_MUX("Aux Capture Select", &adav80x_aux_capture_mux_ctrl),
ADAV80X_MUX("Capture Select", &adav80x_capture_mux_ctrl),
ADAV80X_MUX("DAC Select", &adav80x_dac_mux_ctrl),
SND_SOC_DAPM_INPUT("VINR"),
SND_SOC_DAPM_INPUT("VINL"),
SND_SOC_DAPM_OUTPUT("VOUTR"),
SND_SOC_DAPM_OUTPUT("VOUTL"),
SND_SOC_DAPM_SUPPLY("SYSCLK", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL1", ADAV80X_PLL_CTRL1, 2, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL2", ADAV80X_PLL_CTRL1, 3, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("OSC", ADAV80X_PLL_CTRL1, 1, 1, NULL, 0),
};
static int adav80x_dapm_sysclk_check(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm);
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
const char *clk;
switch (adav80x->clk_src) {
case ADAV80X_CLK_PLL1:
clk = "PLL1";
break;
case ADAV80X_CLK_PLL2:
clk = "PLL2";
break;
case ADAV80X_CLK_XTAL:
clk = "OSC";
break;
default:
return 0;
}
return strcmp(source->name, clk) == 0;
}
static int adav80x_dapm_pll_check(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm);
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
return adav80x->pll_src == ADAV80X_PLL_SRC_XTAL;
}
static const struct snd_soc_dapm_route adav80x_dapm_routes[] = {
{ "DAC Select", "ADC", "ADC" },
{ "DAC Select", "Playback", "AIFIN" },
{ "DAC Select", "Aux Playback", "AIFAUXIN" },
{ "DAC", NULL, "DAC Select" },
{ "Capture Select", "ADC", "ADC" },
{ "Capture Select", "Playback", "AIFIN" },
{ "Capture Select", "Aux Playback", "AIFAUXIN" },
{ "AIFOUT", NULL, "Capture Select" },
{ "Aux Capture Select", "ADC", "ADC" },
{ "Aux Capture Select", "Playback", "AIFIN" },
{ "Aux Capture Select", "Aux Playback", "AIFAUXIN" },
{ "AIFAUXOUT", NULL, "Aux Capture Select" },
{ "VOUTR", NULL, "DAC" },
{ "VOUTL", NULL, "DAC" },
{ "Left PGA", NULL, "VINL" },
{ "Right PGA", NULL, "VINR" },
{ "ADC", NULL, "Left PGA" },
{ "ADC", NULL, "Right PGA" },
{ "SYSCLK", NULL, "PLL1", adav80x_dapm_sysclk_check },
{ "SYSCLK", NULL, "PLL2", adav80x_dapm_sysclk_check },
{ "SYSCLK", NULL, "OSC", adav80x_dapm_sysclk_check },
{ "PLL1", NULL, "OSC", adav80x_dapm_pll_check },
{ "PLL2", NULL, "OSC", adav80x_dapm_pll_check },
{ "ADC", NULL, "SYSCLK" },
{ "DAC", NULL, "SYSCLK" },
{ "AIFOUT", NULL, "SYSCLK" },
{ "AIFAUXOUT", NULL, "SYSCLK" },
{ "AIFIN", NULL, "SYSCLK" },
{ "AIFAUXIN", NULL, "SYSCLK" },
};
static int adav80x_set_deemph(struct snd_soc_codec *codec)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int val;
if (adav80x->deemph) {
switch (adav80x->rate) {
case 32000:
val = ADAV80X_DAC_CTRL2_DEEMPH_32;
break;
case 44100:
val = ADAV80X_DAC_CTRL2_DEEMPH_44;
break;
case 48000:
case 64000:
case 88200:
case 96000:
val = ADAV80X_DAC_CTRL2_DEEMPH_48;
break;
default:
val = ADAV80X_DAC_CTRL2_DEEMPH_NONE;
break;
}
} else {
val = ADAV80X_DAC_CTRL2_DEEMPH_NONE;
}
return regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL2,
ADAV80X_DAC_CTRL2_DEEMPH_MASK, val);
}
static int adav80x_put_deemph(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int deemph = ucontrol->value.integer.value[0];
if (deemph > 1)
return -EINVAL;
adav80x->deemph = deemph;
return adav80x_set_deemph(codec);
}
static int adav80x_get_deemph(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
ucontrol->value.integer.value[0] = adav80x->deemph;
return 0;
};
static const DECLARE_TLV_DB_SCALE(adav80x_inpga_tlv, 0, 50, 0);
static const DECLARE_TLV_DB_MINMAX(adav80x_digital_tlv, -9563, 0);
static const struct snd_kcontrol_new adav80x_controls[] = {
SOC_DOUBLE_R_TLV("Master Playback Volume", ADAV80X_DAC_L_VOL,
ADAV80X_DAC_R_VOL, 0, 0xff, 0, adav80x_digital_tlv),
SOC_DOUBLE_R_TLV("Master Capture Volume", ADAV80X_ADC_L_VOL,
ADAV80X_ADC_R_VOL, 0, 0xff, 0, adav80x_digital_tlv),
SOC_DOUBLE_R_TLV("PGA Capture Volume", ADAV80X_PGA_L_VOL,
ADAV80X_PGA_R_VOL, 0, 0x30, 0, adav80x_inpga_tlv),
SOC_DOUBLE("Master Playback Switch", ADAV80X_DAC_CTRL1, 0, 1, 1, 0),
SOC_DOUBLE("Master Capture Switch", ADAV80X_ADC_CTRL1, 2, 3, 1, 1),
SOC_SINGLE("ADC High Pass Filter Switch", ADAV80X_ADC_CTRL1, 6, 1, 0),
SOC_SINGLE_BOOL_EXT("Playback De-emphasis Switch", 0,
adav80x_get_deemph, adav80x_put_deemph),
};
static unsigned int adav80x_port_ctrl_regs[2][2] = {
{ ADAV80X_REC_CTRL, ADAV80X_PLAYBACK_CTRL, },
{ ADAV80X_AUX_OUT_CTRL, ADAV80X_AUX_IN_CTRL },
};
static int adav80x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_codec *codec = dai->codec;
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int capture = 0x00;
unsigned int playback = 0x00;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
capture |= ADAV80X_CAPTURE_MODE_MASTER;
playback |= ADAV80X_PLAYBACK_MODE_MASTER;
case SND_SOC_DAIFMT_CBS_CFS:
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
capture |= ADAV80X_CAPTURE_MODE_I2S;
playback |= ADAV80X_PLAYBACK_MODE_I2S;
break;
case SND_SOC_DAIFMT_LEFT_J:
capture |= ADAV80X_CAPTURE_MODE_LEFT_J;
playback |= ADAV80X_PLAYBACK_MODE_LEFT_J;
break;
case SND_SOC_DAIFMT_RIGHT_J:
capture |= ADAV80X_CAPTURE_MODE_RIGHT_J;
playback |= ADAV80X_PLAYBACK_MODE_RIGHT_J_24;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
default:
return -EINVAL;
}
regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][0],
ADAV80X_CAPTURE_MODE_MASK | ADAV80X_CAPTURE_MODE_MASTER,
capture);
regmap_write(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][1],
playback);
adav80x->dai_fmt[dai->id] = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
return 0;
}
static int adav80x_set_adc_clock(struct snd_soc_codec *codec,
unsigned int sample_rate)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int val;
if (sample_rate <= 48000)
val = ADAV80X_ADC_CTRL1_MODULATOR_128FS;
else
val = ADAV80X_ADC_CTRL1_MODULATOR_64FS;
regmap_update_bits(adav80x->regmap, ADAV80X_ADC_CTRL1,
ADAV80X_ADC_CTRL1_MODULATOR_MASK, val);
return 0;
}
static int adav80x_set_dac_clock(struct snd_soc_codec *codec,
unsigned int sample_rate)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int val;
if (sample_rate <= 48000)
val = ADAV80X_DAC_CTRL2_DIV1 | ADAV80X_DAC_CTRL2_INTERPOL_256FS;
else
val = ADAV80X_DAC_CTRL2_DIV2 | ADAV80X_DAC_CTRL2_INTERPOL_128FS;
regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL2,
ADAV80X_DAC_CTRL2_DIV_MASK | ADAV80X_DAC_CTRL2_INTERPOL_MASK,
val);
return 0;
}
static int adav80x_set_capture_pcm_format(struct snd_soc_codec *codec,
struct snd_soc_dai *dai, struct snd_pcm_hw_params *params)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int val;
switch (params_width(params)) {
case 16:
val = ADAV80X_CAPTURE_WORD_LEN16;
break;
case 18:
val = ADAV80X_CAPTRUE_WORD_LEN18;
break;
case 20:
val = ADAV80X_CAPTURE_WORD_LEN20;
break;
case 24:
val = ADAV80X_CAPTURE_WORD_LEN24;
break;
default:
return -EINVAL;
}
regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][0],
ADAV80X_CAPTURE_WORD_LEN_MASK, val);
return 0;
}
static int adav80x_set_playback_pcm_format(struct snd_soc_codec *codec,
struct snd_soc_dai *dai, struct snd_pcm_hw_params *params)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int val;
if (adav80x->dai_fmt[dai->id] != SND_SOC_DAIFMT_RIGHT_J)
return 0;
switch (params_width(params)) {
case 16:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_16;
break;
case 18:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_18;
break;
case 20:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_20;
break;
case 24:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_24;
break;
default:
return -EINVAL;
}
regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][1],
ADAV80X_PLAYBACK_MODE_MASK, val);
return 0;
}
static int adav80x_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 adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int rate = params_rate(params);
if (rate * 256 != adav80x->sysclk)
return -EINVAL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
adav80x_set_playback_pcm_format(codec, dai, params);
adav80x_set_dac_clock(codec, rate);
} else {
adav80x_set_capture_pcm_format(codec, dai, params);
adav80x_set_adc_clock(codec, rate);
}
adav80x->rate = rate;
adav80x_set_deemph(codec);
return 0;
}
static int adav80x_set_sysclk(struct snd_soc_codec *codec,
int clk_id, int source,
unsigned int freq, int dir)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
struct snd_soc_dapm_context *dapm = &codec->dapm;
if (dir == SND_SOC_CLOCK_IN) {
switch (clk_id) {
case ADAV80X_CLK_XIN:
case ADAV80X_CLK_XTAL:
case ADAV80X_CLK_MCLKI:
case ADAV80X_CLK_PLL1:
case ADAV80X_CLK_PLL2:
break;
default:
return -EINVAL;
}
adav80x->sysclk = freq;
if (adav80x->clk_src != clk_id) {
unsigned int iclk_ctrl1, iclk_ctrl2;
adav80x->clk_src = clk_id;
if (clk_id == ADAV80X_CLK_XTAL)
clk_id = ADAV80X_CLK_XIN;
iclk_ctrl1 = ADAV80X_ICLK_CTRL1_DAC_SRC(clk_id) |
ADAV80X_ICLK_CTRL1_ADC_SRC(clk_id) |
ADAV80X_ICLK_CTRL1_ICLK2_SRC(clk_id);
iclk_ctrl2 = ADAV80X_ICLK_CTRL2_ICLK1_SRC(clk_id);
regmap_write(adav80x->regmap, ADAV80X_ICLK_CTRL1,
iclk_ctrl1);
regmap_write(adav80x->regmap, ADAV80X_ICLK_CTRL2,
iclk_ctrl2);
snd_soc_dapm_sync(dapm);
}
} else {
unsigned int mask;
switch (clk_id) {
case ADAV80X_CLK_SYSCLK1:
case ADAV80X_CLK_SYSCLK2:
case ADAV80X_CLK_SYSCLK3:
break;
default:
return -EINVAL;
}
clk_id -= ADAV80X_CLK_SYSCLK1;
mask = ADAV80X_PLL_OUTE_SYSCLKPD(clk_id);
if (freq == 0) {
regmap_update_bits(adav80x->regmap, ADAV80X_PLL_OUTE,
mask, mask);
adav80x->sysclk_pd[clk_id] = true;
} else {
regmap_update_bits(adav80x->regmap, ADAV80X_PLL_OUTE,
mask, 0);
adav80x->sysclk_pd[clk_id] = false;
}
snd_soc_dapm_mutex_lock(dapm);
if (adav80x->sysclk_pd[0])
snd_soc_dapm_disable_pin_unlocked(dapm, "PLL1");
else
snd_soc_dapm_force_enable_pin_unlocked(dapm, "PLL1");
if (adav80x->sysclk_pd[1] || adav80x->sysclk_pd[2])
snd_soc_dapm_disable_pin_unlocked(dapm, "PLL2");
else
snd_soc_dapm_force_enable_pin_unlocked(dapm, "PLL2");
snd_soc_dapm_sync_unlocked(dapm);
snd_soc_dapm_mutex_unlock(dapm);
}
return 0;
}
static int adav80x_set_pll(struct snd_soc_codec *codec, int pll_id,
int source, unsigned int freq_in, unsigned int freq_out)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int pll_ctrl1 = 0;
unsigned int pll_ctrl2 = 0;
unsigned int pll_src;
switch (source) {
case ADAV80X_PLL_SRC_XTAL:
case ADAV80X_PLL_SRC_XIN:
case ADAV80X_PLL_SRC_MCLKI:
break;
default:
return -EINVAL;
}
if (!freq_out)
return 0;
switch (freq_in) {
case 27000000:
break;
case 54000000:
if (source == ADAV80X_PLL_SRC_XIN) {
pll_ctrl1 |= ADAV80X_PLL_CTRL1_PLLDIV;
break;
}
default:
return -EINVAL;
}
if (freq_out > 12288000) {
pll_ctrl2 |= ADAV80X_PLL_CTRL2_DOUB(pll_id);
freq_out /= 2;
}
/* freq_out = sample_rate * 256 */
switch (freq_out) {
case 8192000:
pll_ctrl2 |= ADAV80X_PLL_CTRL2_FS_32(pll_id);
break;
case 11289600:
pll_ctrl2 |= ADAV80X_PLL_CTRL2_FS_44(pll_id);
break;
case 12288000:
pll_ctrl2 |= ADAV80X_PLL_CTRL2_FS_48(pll_id);
break;
default:
return -EINVAL;
}
regmap_update_bits(adav80x->regmap, ADAV80X_PLL_CTRL1,
ADAV80X_PLL_CTRL1_PLLDIV, pll_ctrl1);
regmap_update_bits(adav80x->regmap, ADAV80X_PLL_CTRL2,
ADAV80X_PLL_CTRL2_PLL_MASK(pll_id), pll_ctrl2);
if (source != adav80x->pll_src) {
if (source == ADAV80X_PLL_SRC_MCLKI)
pll_src = ADAV80X_PLL_CLK_SRC_PLL_MCLKI(pll_id);
else
pll_src = ADAV80X_PLL_CLK_SRC_PLL_XIN(pll_id);
regmap_update_bits(adav80x->regmap, ADAV80X_PLL_CLK_SRC,
ADAV80X_PLL_CLK_SRC_PLL_MASK(pll_id), pll_src);
adav80x->pll_src = source;
snd_soc_dapm_sync(&codec->dapm);
}
return 0;
}
static int adav80x_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int mask = ADAV80X_DAC_CTRL1_PD;
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL1, mask,
0x00);
break;
case SND_SOC_BIAS_OFF:
regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL1, mask,
mask);
break;
}
codec->dapm.bias_level = level;
return 0;
}
/* Enforce the same sample rate on all audio interfaces */
static int adav80x_dai_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
if (!snd_soc_codec_is_active(codec) || !adav80x->rate)
return 0;
return snd_pcm_hw_constraint_minmax(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE, adav80x->rate, adav80x->rate);
}
static void adav80x_dai_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
if (!snd_soc_codec_is_active(codec))
adav80x->rate = 0;
}
static const struct snd_soc_dai_ops adav80x_dai_ops = {
.set_fmt = adav80x_set_dai_fmt,
.hw_params = adav80x_hw_params,
.startup = adav80x_dai_startup,
.shutdown = adav80x_dai_shutdown,
};
#define ADAV80X_PLAYBACK_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | \
SNDRV_PCM_RATE_96000)
#define ADAV80X_CAPTURE_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000)
#define ADAV80X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE)
static struct snd_soc_dai_driver adav80x_dais[] = {
{
.name = "adav80x-hifi",
.id = 0,
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 2,
.channels_max = 2,
.rates = ADAV80X_PLAYBACK_RATES,
.formats = ADAV80X_FORMATS,
},
.capture = {
.stream_name = "HiFi Capture",
.channels_min = 2,
.channels_max = 2,
.rates = ADAV80X_CAPTURE_RATES,
.formats = ADAV80X_FORMATS,
},
.ops = &adav80x_dai_ops,
},
{
.name = "adav80x-aux",
.id = 1,
.playback = {
.stream_name = "Aux Playback",
.channels_min = 2,
.channels_max = 2,
.rates = ADAV80X_PLAYBACK_RATES,
.formats = ADAV80X_FORMATS,
},
.capture = {
.stream_name = "Aux Capture",
.channels_min = 2,
.channels_max = 2,
.rates = ADAV80X_CAPTURE_RATES,
.formats = ADAV80X_FORMATS,
},
.ops = &adav80x_dai_ops,
},
};
static int adav80x_probe(struct snd_soc_codec *codec)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
/* Force PLLs on for SYSCLK output */
snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL1");
snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL2");
/* Power down S/PDIF receiver, since it is currently not supported */
regmap_write(adav80x->regmap, ADAV80X_PLL_OUTE, 0x20);
/* Disable DAC zero flag */
regmap_write(adav80x->regmap, ADAV80X_DAC_CTRL3, 0x6);
return 0;
}
static int adav80x_resume(struct snd_soc_codec *codec)
{
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
regcache_sync(adav80x->regmap);
return 0;
}
static struct snd_soc_codec_driver adav80x_codec_driver = {
.probe = adav80x_probe,
.resume = adav80x_resume,
.set_bias_level = adav80x_set_bias_level,
.suspend_bias_off = true,
.set_pll = adav80x_set_pll,
.set_sysclk = adav80x_set_sysclk,
.controls = adav80x_controls,
.num_controls = ARRAY_SIZE(adav80x_controls),
.dapm_widgets = adav80x_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(adav80x_dapm_widgets),
.dapm_routes = adav80x_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(adav80x_dapm_routes),
};
int adav80x_bus_probe(struct device *dev, struct regmap *regmap)
{
struct adav80x *adav80x;
if (IS_ERR(regmap))
return PTR_ERR(regmap);
adav80x = devm_kzalloc(dev, sizeof(*adav80x), GFP_KERNEL);
if (!adav80x)
return -ENOMEM;
dev_set_drvdata(dev, adav80x);
adav80x->regmap = regmap;
return snd_soc_register_codec(dev, &adav80x_codec_driver,
adav80x_dais, ARRAY_SIZE(adav80x_dais));
}
EXPORT_SYMBOL_GPL(adav80x_bus_probe);
const struct regmap_config adav80x_regmap_config = {
.val_bits = 8,
.pad_bits = 1,
.reg_bits = 7,
.read_flag_mask = 0x01,
.max_register = ADAV80X_PLL_OUTE,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = adav80x_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(adav80x_reg_defaults),
};
EXPORT_SYMBOL_GPL(adav80x_regmap_config);
MODULE_DESCRIPTION("ASoC ADAV80x driver");
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_AUTHOR("Yi Li <yi.li@analog.com>>");
MODULE_LICENSE("GPL");