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linux_dsm_epyc7002/sound/soc/codecs/ad193x.c
Colin Ian King 78b93b0477
ASoC: codecs: ad193x: make two arrays static const, makes object smaller 
Don't populate the arrays on the stack but instead make them
static const. Makes the object code smaller by 37 bytes.

Before:
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  16253	   7200	      0	  23453	   5b9d	sound/soc/codecs/ad193x.o

After:
   text	   data	    bss	    dec	    hex	filename
  16056	   7360	      0	  23416	   5b78	sound/soc/codecs/ad193x.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190906161404.1440-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-09 10:50:51 +01:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AD193X Audio Codec driver supporting AD1936/7/8/9
*
* Copyright 2010 Analog Devices Inc.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "ad193x.h"
/* codec private data */
struct ad193x_priv {
struct regmap *regmap;
enum ad193x_type type;
int sysclk;
};
/*
* AD193X volume/mute/de-emphasis etc. controls
*/
static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,
ad193x_deemp);
static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
static const unsigned int ad193x_sb[] = {32};
static struct snd_pcm_hw_constraint_list constr = {
.list = ad193x_sb,
.count = ARRAY_SIZE(ad193x_sb),
};
static const struct snd_kcontrol_new ad193x_snd_controls[] = {
/* DAC volume control */
SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),
/* DAC switch control */
SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
AD193X_DACR1_MUTE, 1, 1),
SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
AD193X_DACR2_MUTE, 1, 1),
SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
AD193X_DACR3_MUTE, 1, 1),
SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
AD193X_DACR4_MUTE, 1, 1),
/* DAC de-emphasis */
SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
};
static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = {
/* ADC switch control */
SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
AD193X_ADCR1_MUTE, 1, 1),
SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
AD193X_ADCR2_MUTE, 1, 1),
/* ADC high-pass filter */
SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
AD193X_ADC_HIGHPASS_FILTER, 1, 0),
};
static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),
SND_SOC_DAPM_VMID("VMID"),
SND_SOC_DAPM_OUTPUT("DAC1OUT"),
SND_SOC_DAPM_OUTPUT("DAC2OUT"),
SND_SOC_DAPM_OUTPUT("DAC3OUT"),
SND_SOC_DAPM_OUTPUT("DAC4OUT"),
};
static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = {
SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
SND_SOC_DAPM_INPUT("ADC1IN"),
SND_SOC_DAPM_INPUT("ADC2IN"),
};
static int ad193x_check_pll(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
return !!ad193x->sysclk;
}
static const struct snd_soc_dapm_route audio_paths[] = {
{ "DAC", NULL, "SYSCLK" },
{ "DAC Output", NULL, "DAC" },
{ "DAC Output", NULL, "VMID" },
{ "DAC1OUT", NULL, "DAC Output" },
{ "DAC2OUT", NULL, "DAC Output" },
{ "DAC3OUT", NULL, "DAC Output" },
{ "DAC4OUT", NULL, "DAC Output" },
{ "SYSCLK", NULL, "PLL_PWR", &ad193x_check_pll },
};
static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = {
{ "ADC", NULL, "SYSCLK" },
{ "ADC", NULL, "ADC_PWR" },
{ "ADC", NULL, "ADC1IN" },
{ "ADC", NULL, "ADC2IN" },
};
static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x)
{
switch (ad193x->type) {
case AD1933:
case AD1934:
return false;
default:
break;
}
return true;
}
/*
* DAI ops entries
*/
static int ad193x_mute(struct snd_soc_dai *dai, int mute)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
if (mute)
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
AD193X_DAC_MASTER_MUTE,
AD193X_DAC_MASTER_MUTE);
else
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
AD193X_DAC_MASTER_MUTE, 0);
return 0;
}
static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
unsigned int rx_mask, int slots, int width)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
unsigned int channels;
switch (slots) {
case 2:
channels = AD193X_2_CHANNELS;
break;
case 4:
channels = AD193X_4_CHANNELS;
break;
case 8:
channels = AD193X_8_CHANNELS;
break;
case 16:
channels = AD193X_16_CHANNELS;
break;
default:
return -EINVAL;
}
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
if (ad193x_has_adc(ad193x))
regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
AD193X_ADC_CHAN_MASK,
channels << AD193X_ADC_CHAN_SHFT);
return 0;
}
static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(codec_dai->component);
unsigned int adc_serfmt = 0;
unsigned int dac_serfmt = 0;
unsigned int adc_fmt = 0;
unsigned int dac_fmt = 0;
/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
* with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode
* (SND_SOC_DAIFMT_I2S)
*/
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
adc_serfmt |= AD193X_ADC_SERFMT_TDM;
dac_serfmt |= AD193X_DAC_SERFMT_STEREO;
break;
case SND_SOC_DAIFMT_DSP_A:
adc_serfmt |= AD193X_ADC_SERFMT_AUX;
dac_serfmt |= AD193X_DAC_SERFMT_TDM;
break;
default:
if (ad193x_has_adc(ad193x))
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
break;
case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
adc_fmt |= AD193X_ADC_LEFT_HIGH;
dac_fmt |= AD193X_DAC_LEFT_HIGH;
break;
case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
adc_fmt |= AD193X_ADC_BCLK_INV;
dac_fmt |= AD193X_DAC_BCLK_INV;
break;
case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
adc_fmt |= AD193X_ADC_LEFT_HIGH;
adc_fmt |= AD193X_ADC_BCLK_INV;
dac_fmt |= AD193X_DAC_LEFT_HIGH;
dac_fmt |= AD193X_DAC_BCLK_INV;
break;
default:
return -EINVAL;
}
/* For DSP_*, LRCLK's polarity must be inverted */
if (fmt & SND_SOC_DAIFMT_DSP_A)
dac_fmt ^= AD193X_DAC_LEFT_HIGH;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
adc_fmt |= AD193X_ADC_LCR_MASTER;
adc_fmt |= AD193X_ADC_BCLK_MASTER;
dac_fmt |= AD193X_DAC_LCR_MASTER;
dac_fmt |= AD193X_DAC_BCLK_MASTER;
break;
case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
adc_fmt |= AD193X_ADC_LCR_MASTER;
dac_fmt |= AD193X_DAC_LCR_MASTER;
break;
case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
adc_fmt |= AD193X_ADC_BCLK_MASTER;
dac_fmt |= AD193X_DAC_BCLK_MASTER;
break;
case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
break;
default:
return -EINVAL;
}
if (ad193x_has_adc(ad193x)) {
regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
AD193X_ADC_SERFMT_MASK, adc_serfmt);
regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
AD193X_ADC_FMT_MASK, adc_fmt);
}
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0,
AD193X_DAC_SERFMT_MASK, dac_serfmt);
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
AD193X_DAC_FMT_MASK, dac_fmt);
return 0;
}
static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_component *component = codec_dai->component;
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
if (clk_id == AD193X_SYSCLK_MCLK) {
/* MCLK must be 512 x fs */
if (dir == SND_SOC_CLOCK_OUT || freq != 24576000)
return -EINVAL;
regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL1,
AD193X_PLL_SRC_MASK,
AD193X_PLL_DAC_SRC_MCLK |
AD193X_PLL_CLK_SRC_MCLK);
snd_soc_dapm_sync(dapm);
return 0;
}
switch (freq) {
case 12288000:
case 18432000:
case 24576000:
case 36864000:
ad193x->sysclk = freq;
return 0;
}
return -EINVAL;
}
static int ad193x_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
int word_len = 0, master_rate = 0;
struct snd_soc_component *component = dai->component;
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
/* bit size */
switch (params_width(params)) {
case 16:
word_len = 3;
break;
case 20:
word_len = 1;
break;
case 24:
case 32:
word_len = 0;
break;
}
switch (ad193x->sysclk) {
case 12288000:
master_rate = AD193X_PLL_INPUT_256;
break;
case 18432000:
master_rate = AD193X_PLL_INPUT_384;
break;
case 24576000:
master_rate = AD193X_PLL_INPUT_512;
break;
case 36864000:
master_rate = AD193X_PLL_INPUT_768;
break;
}
regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
AD193X_PLL_INPUT_MASK, master_rate);
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
AD193X_DAC_WORD_LEN_MASK,
word_len << AD193X_DAC_WORD_LEN_SHFT);
if (ad193x_has_adc(ad193x))
regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
AD193X_ADC_WORD_LEN_MASK, word_len);
return 0;
}
static int ad193x_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
&constr);
}
static const struct snd_soc_dai_ops ad193x_dai_ops = {
.startup = ad193x_startup,
.hw_params = ad193x_hw_params,
.digital_mute = ad193x_mute,
.set_tdm_slot = ad193x_set_tdm_slot,
.set_sysclk = ad193x_set_dai_sysclk,
.set_fmt = ad193x_set_dai_fmt,
};
/* codec DAI instance */
static struct snd_soc_dai_driver ad193x_dai = {
.name = "ad193x-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 8,
.rates = SNDRV_PCM_RATE_48000,
.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 4,
.rates = SNDRV_PCM_RATE_48000,
.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
},
.ops = &ad193x_dai_ops,
};
/* codec DAI instance for DAC only */
static struct snd_soc_dai_driver ad193x_no_adc_dai = {
.name = "ad193x-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 8,
.rates = SNDRV_PCM_RATE_48000,
.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
},
.ops = &ad193x_dai_ops,
};
/* codec register values to set after reset */
static void ad193x_reg_default_init(struct ad193x_priv *ad193x)
{
static const struct reg_sequence reg_init[] = {
{ 0, 0x99 }, /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */
{ 1, 0x04 }, /* PLL_CLK_CTRL1: no on-chip Vref */
{ 2, 0x40 }, /* DAC_CTRL0: TDM mode */
{ 3, 0x00 }, /* DAC_CTRL1: reset */
{ 4, 0x1A }, /* DAC_CTRL2: 48kHz de-emphasis, unmute dac */
{ 5, 0x00 }, /* DAC_CHNL_MUTE: unmute DAC channels */
{ 6, 0x00 }, /* DAC_L1_VOL: no attenuation */
{ 7, 0x00 }, /* DAC_R1_VOL: no attenuation */
{ 8, 0x00 }, /* DAC_L2_VOL: no attenuation */
{ 9, 0x00 }, /* DAC_R2_VOL: no attenuation */
{ 10, 0x00 }, /* DAC_L3_VOL: no attenuation */
{ 11, 0x00 }, /* DAC_R3_VOL: no attenuation */
{ 12, 0x00 }, /* DAC_L4_VOL: no attenuation */
{ 13, 0x00 }, /* DAC_R4_VOL: no attenuation */
};
static const struct reg_sequence reg_adc_init[] = {
{ 14, 0x03 }, /* ADC_CTRL0: high-pass filter enable */
{ 15, 0x43 }, /* ADC_CTRL1: sata delay=1, adc aux mode */
{ 16, 0x00 }, /* ADC_CTRL2: reset */
};
regmap_multi_reg_write(ad193x->regmap, reg_init, ARRAY_SIZE(reg_init));
if (ad193x_has_adc(ad193x)) {
regmap_multi_reg_write(ad193x->regmap, reg_adc_init,
ARRAY_SIZE(reg_adc_init));
}
}
static int ad193x_component_probe(struct snd_soc_component *component)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
int num, ret;
/* default setting for ad193x */
ad193x_reg_default_init(ad193x);
/* adc only */
if (ad193x_has_adc(ad193x)) {
/* add adc controls */
num = ARRAY_SIZE(ad193x_adc_snd_controls);
ret = snd_soc_add_component_controls(component,
ad193x_adc_snd_controls,
num);
if (ret)
return ret;
/* add adc widgets */
num = ARRAY_SIZE(ad193x_adc_widgets);
ret = snd_soc_dapm_new_controls(dapm,
ad193x_adc_widgets,
num);
if (ret)
return ret;
/* add adc routes */
num = ARRAY_SIZE(ad193x_adc_audio_paths);
ret = snd_soc_dapm_add_routes(dapm,
ad193x_adc_audio_paths,
num);
if (ret)
return ret;
}
return 0;
}
static const struct snd_soc_component_driver soc_component_dev_ad193x = {
.probe = ad193x_component_probe,
.controls = ad193x_snd_controls,
.num_controls = ARRAY_SIZE(ad193x_snd_controls),
.dapm_widgets = ad193x_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),
.dapm_routes = audio_paths,
.num_dapm_routes = ARRAY_SIZE(audio_paths),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
.non_legacy_dai_naming = 1,
};
const struct regmap_config ad193x_regmap_config = {
.max_register = AD193X_NUM_REGS - 1,
};
EXPORT_SYMBOL_GPL(ad193x_regmap_config);
int ad193x_probe(struct device *dev, struct regmap *regmap,
enum ad193x_type type)
{
struct ad193x_priv *ad193x;
if (IS_ERR(regmap))
return PTR_ERR(regmap);
ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL);
if (ad193x == NULL)
return -ENOMEM;
ad193x->regmap = regmap;
ad193x->type = type;
dev_set_drvdata(dev, ad193x);
if (ad193x_has_adc(ad193x))
return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
&ad193x_dai, 1);
return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
&ad193x_no_adc_dai, 1);
}
EXPORT_SYMBOL_GPL(ad193x_probe);
MODULE_DESCRIPTION("ASoC ad193x driver");
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_LICENSE("GPL");
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