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linux-stable/sound/soc/codecs/adav80x.c
Mark Brown da1c6ea6cf ASoC: Allow source specification for CODEC level sysclk 
Similarly to PLLs/FLLs some modern CODECs provide selectable system clock
sources. When the clock is the clock for a DAI we do not usually need to
identify which clock is being configured so can use clk_id for the source
clock but with CODEC wide system clocks we will need to specify both the
clock being configured and the source.

Add a source argument to the CODEC driver set_sysclk() operation to
reflect this. As this operation is not as widely used as the DAI
set_sysclk() operation the change is not very invasive. We probably
ought to go and make the same alternation for DAIs at some point.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-31 09:57:35 +01:00

952 lines
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/*
* 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/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/i2c.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 "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 u8 adav80x_default_regs[] = {
0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x01, 0x80, 0x26, 0x00, 0x00,
0x02, 0x40, 0x20, 0x00, 0x09, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd1, 0x92, 0xb1, 0x37,
0x48, 0xd2, 0xfb, 0xca, 0xd2, 0x15, 0xe8, 0x29, 0xb9, 0x6a, 0xda, 0x2b,
0xb7, 0xc0, 0x11, 0x65, 0x5c, 0xf6, 0xff, 0x8d, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa5, 0x00, 0x00,
0x00, 0xe8, 0x46, 0xe1, 0x5b, 0xd3, 0x43, 0x77, 0x93, 0xa7, 0x44, 0xee,
0x32, 0x12, 0xc0, 0x11, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x3f, 0x3f,
0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x1d, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x52, 0x00,
};
struct adav80x {
enum snd_soc_control_type control_type;
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_VALUE_ENUM("Route", adav80x_aux_capture_enum);
static const struct snd_kcontrol_new adav80x_capture_mux_ctrl =
SOC_DAPM_VALUE_ENUM("Route", adav80x_capture_enum);
static const struct snd_kcontrol_new adav80x_dac_mux_ctrl =
SOC_DAPM_VALUE_ENUM("Route", adav80x_dac_enum);
#define ADAV80X_MUX(name, ctrl) \
SND_SOC_DAPM_VALUE_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 = source->codec;
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 = source->codec;
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 snd_soc_update_bits(codec, 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_kcontrol_chip(kcontrol);
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
unsigned int deemph = ucontrol->value.enumerated.item[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_kcontrol_chip(kcontrol);
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
ucontrol->value.enumerated.item[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;
}
snd_soc_update_bits(codec, adav80x_port_ctrl_regs[dai->id][0],
ADAV80X_CAPTURE_MODE_MASK | ADAV80X_CAPTURE_MODE_MASTER,
capture);
snd_soc_write(codec, 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)
{
unsigned int val;
if (sample_rate <= 48000)
val = ADAV80X_ADC_CTRL1_MODULATOR_128FS;
else
val = ADAV80X_ADC_CTRL1_MODULATOR_64FS;
snd_soc_update_bits(codec, 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)
{
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;
snd_soc_update_bits(codec, 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, snd_pcm_format_t format)
{
unsigned int val;
switch (format) {
case SNDRV_PCM_FORMAT_S16_LE:
val = ADAV80X_CAPTURE_WORD_LEN16;
break;
case SNDRV_PCM_FORMAT_S18_3LE:
val = ADAV80X_CAPTRUE_WORD_LEN18;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
val = ADAV80X_CAPTURE_WORD_LEN20;
break;
case SNDRV_PCM_FORMAT_S24_LE:
val = ADAV80X_CAPTURE_WORD_LEN24;
break;
default:
return -EINVAL;
}
snd_soc_update_bits(codec, 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, snd_pcm_format_t format)
{
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 (format) {
case SNDRV_PCM_FORMAT_S16_LE:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_16;
break;
case SNDRV_PCM_FORMAT_S18_3LE:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_18;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_20;
break;
case SNDRV_PCM_FORMAT_S24_LE:
val = ADAV80X_PLAYBACK_MODE_RIGHT_J_24;
break;
default:
return -EINVAL;
}
snd_soc_update_bits(codec, 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_format(params));
adav80x_set_dac_clock(codec, rate);
} else {
adav80x_set_capture_pcm_format(codec, dai,
params_format(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);
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);
snd_soc_write(codec, ADAV80X_ICLK_CTRL1, iclk_ctrl1);
snd_soc_write(codec, ADAV80X_ICLK_CTRL2, iclk_ctrl2);
snd_soc_dapm_sync(&codec->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) {
snd_soc_update_bits(codec, ADAV80X_PLL_OUTE, mask, mask);
adav80x->sysclk_pd[clk_id] = true;
} else {
snd_soc_update_bits(codec, ADAV80X_PLL_OUTE, mask, 0);
adav80x->sysclk_pd[clk_id] = false;
}
if (adav80x->sysclk_pd[0])
snd_soc_dapm_disable_pin(&codec->dapm, "PLL1");
else
snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL1");
if (adav80x->sysclk_pd[1] || adav80x->sysclk_pd[2])
snd_soc_dapm_disable_pin(&codec->dapm, "PLL2");
else
snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL2");
snd_soc_dapm_sync(&codec->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;
}
snd_soc_update_bits(codec, ADAV80X_PLL_CTRL1, ADAV80X_PLL_CTRL1_PLLDIV,
pll_ctrl1);
snd_soc_update_bits(codec, 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);
snd_soc_update_bits(codec, 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)
{
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:
snd_soc_update_bits(codec, ADAV80X_DAC_CTRL1, mask, 0x00);
break;
case SND_SOC_BIAS_OFF:
snd_soc_update_bits(codec, 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 (!codec->active || !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 (!codec->active)
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)
{
int ret;
struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
ret = snd_soc_codec_set_cache_io(codec, 7, 9, adav80x->control_type);
if (ret) {
dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
return ret;
}
/* 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 */
snd_soc_write(codec, ADAV80X_PLL_OUTE, 0x20);
/* Disable DAC zero flag */
snd_soc_write(codec, ADAV80X_DAC_CTRL3, 0x6);
return adav80x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
}
static int adav80x_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
return adav80x_set_bias_level(codec, SND_SOC_BIAS_OFF);
}
static int adav80x_resume(struct snd_soc_codec *codec)
{
adav80x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
codec->cache_sync = 1;
snd_soc_cache_sync(codec);
return 0;
}
static int adav80x_remove(struct snd_soc_codec *codec)
{
return adav80x_set_bias_level(codec, SND_SOC_BIAS_OFF);
}
static struct snd_soc_codec_driver adav80x_codec_driver = {
.probe = adav80x_probe,
.remove = adav80x_remove,
.suspend = adav80x_suspend,
.resume = adav80x_resume,
.set_bias_level = adav80x_set_bias_level,
.set_pll = adav80x_set_pll,
.set_sysclk = adav80x_set_sysclk,
.reg_word_size = sizeof(u8),
.reg_cache_size = ARRAY_SIZE(adav80x_default_regs),
.reg_cache_default = adav80x_default_regs,
.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),
};
static int __devinit adav80x_bus_probe(struct device *dev,
enum snd_soc_control_type control_type)
{
struct adav80x *adav80x;
int ret;
adav80x = kzalloc(sizeof(*adav80x), GFP_KERNEL);
if (!adav80x)
return -ENOMEM;
dev_set_drvdata(dev, adav80x);
adav80x->control_type = control_type;
ret = snd_soc_register_codec(dev, &adav80x_codec_driver,
adav80x_dais, ARRAY_SIZE(adav80x_dais));
if (ret)
kfree(adav80x);
return ret;
}
static int __devexit adav80x_bus_remove(struct device *dev)
{
snd_soc_unregister_codec(dev);
kfree(dev_get_drvdata(dev));
return 0;
}
#if defined(CONFIG_SPI_MASTER)
static int __devinit adav80x_spi_probe(struct spi_device *spi)
{
return adav80x_bus_probe(&spi->dev, SND_SOC_SPI);
}
static int __devexit adav80x_spi_remove(struct spi_device *spi)
{
return adav80x_bus_remove(&spi->dev);
}
static struct spi_driver adav80x_spi_driver = {
.driver = {
.name = "adav801",
.owner = THIS_MODULE,
},
.probe = adav80x_spi_probe,
.remove = __devexit_p(adav80x_spi_remove),
};
#endif
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static const struct i2c_device_id adav80x_id[] = {
{ "adav803", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adav80x_id);
static int __devinit adav80x_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
return adav80x_bus_probe(&client->dev, SND_SOC_I2C);
}
static int __devexit adav80x_i2c_remove(struct i2c_client *client)
{
return adav80x_bus_remove(&client->dev);
}
static struct i2c_driver adav80x_i2c_driver = {
.driver = {
.name = "adav803",
.owner = THIS_MODULE,
},
.probe = adav80x_i2c_probe,
.remove = __devexit_p(adav80x_i2c_remove),
.id_table = adav80x_id,
};
#endif
static int __init adav80x_init(void)
{
int ret = 0;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
ret = i2c_add_driver(&adav80x_i2c_driver);
if (ret)
return ret;
#endif
#if defined(CONFIG_SPI_MASTER)
ret = spi_register_driver(&adav80x_spi_driver);
#endif
return ret;
}
module_init(adav80x_init);
static void __exit adav80x_exit(void)
{
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_driver(&adav80x_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
spi_unregister_driver(&adav80x_spi_driver);
#endif
}
module_exit(adav80x_exit);
MODULE_DESCRIPTION("ASoC ADAV80x driver");
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_AUTHOR("Yi Li <yi.li@analog.com>>");
MODULE_LICENSE("GPL");
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