123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509 |
- // SPDX-License-Identifier: GPL-2.0
- //
- // Audio driver for AK5558 ADC
- //
- // Copyright (C) 2015 Asahi Kasei Microdevices Corporation
- // Copyright 2018 NXP
- #include <linux/delay.h>
- #include <linux/gpio/consumer.h>
- #include <linux/i2c.h>
- #include <linux/module.h>
- #include <linux/of_device.h>
- #include <linux/pm_runtime.h>
- #include <linux/regmap.h>
- #include <linux/regulator/consumer.h>
- #include <linux/slab.h>
- #include <sound/initval.h>
- #include <sound/pcm.h>
- #include <sound/pcm_params.h>
- #include <sound/soc.h>
- #include <sound/soc-dapm.h>
- #include <sound/tlv.h>
- #include "ak5558.h"
- enum ak555x_type {
- AK5558,
- AK5552,
- };
- #define AK5558_NUM_SUPPLIES 2
- static const char *ak5558_supply_names[AK5558_NUM_SUPPLIES] = {
- "DVDD",
- "AVDD",
- };
- /* AK5558 Codec Private Data */
- struct ak5558_priv {
- struct regulator_bulk_data supplies[AK5558_NUM_SUPPLIES];
- struct snd_soc_component component;
- struct regmap *regmap;
- struct i2c_client *i2c;
- struct gpio_desc *reset_gpiod; /* Reset & Power down GPIO */
- int slots;
- int slot_width;
- };
- /* ak5558 register cache & default register settings */
- static const struct reg_default ak5558_reg[] = {
- { 0x0, 0xFF }, /* 0x00 AK5558_00_POWER_MANAGEMENT1 */
- { 0x1, 0x01 }, /* 0x01 AK5558_01_POWER_MANAGEMENT2 */
- { 0x2, 0x01 }, /* 0x02 AK5558_02_CONTROL1 */
- { 0x3, 0x00 }, /* 0x03 AK5558_03_CONTROL2 */
- { 0x4, 0x00 }, /* 0x04 AK5558_04_CONTROL3 */
- { 0x5, 0x00 } /* 0x05 AK5558_05_DSD */
- };
- static const char * const mono_texts[] = {
- "8 Slot", "2 Slot", "4 Slot", "1 Slot",
- };
- static const struct soc_enum ak5558_mono_enum[] = {
- SOC_ENUM_SINGLE(AK5558_01_POWER_MANAGEMENT2, 1,
- ARRAY_SIZE(mono_texts), mono_texts),
- };
- static const char * const mono_5552_texts[] = {
- "2 Slot", "1 Slot (Fixed)", "2 Slot", "1 Slot (Optimal)",
- };
- static const struct soc_enum ak5552_mono_enum[] = {
- SOC_ENUM_SINGLE(AK5558_01_POWER_MANAGEMENT2, 1,
- ARRAY_SIZE(mono_5552_texts), mono_5552_texts),
- };
- static const char * const digfil_texts[] = {
- "Sharp Roll-Off", "Slow Roll-Off",
- "Short Delay Sharp Roll-Off", "Short Delay Slow Roll-Off",
- };
- static const struct soc_enum ak5558_adcset_enum[] = {
- SOC_ENUM_SINGLE(AK5558_04_CONTROL3, 0,
- ARRAY_SIZE(digfil_texts), digfil_texts),
- };
- static const struct snd_kcontrol_new ak5558_snd_controls[] = {
- SOC_ENUM("Monaural Mode", ak5558_mono_enum[0]),
- SOC_ENUM("Digital Filter", ak5558_adcset_enum[0]),
- };
- static const struct snd_kcontrol_new ak5552_snd_controls[] = {
- SOC_ENUM("Monaural Mode", ak5552_mono_enum[0]),
- SOC_ENUM("Digital Filter", ak5558_adcset_enum[0]),
- };
- static const struct snd_soc_dapm_widget ak5558_dapm_widgets[] = {
- /* Analog Input */
- SND_SOC_DAPM_INPUT("AIN1"),
- SND_SOC_DAPM_INPUT("AIN2"),
- SND_SOC_DAPM_INPUT("AIN3"),
- SND_SOC_DAPM_INPUT("AIN4"),
- SND_SOC_DAPM_INPUT("AIN5"),
- SND_SOC_DAPM_INPUT("AIN6"),
- SND_SOC_DAPM_INPUT("AIN7"),
- SND_SOC_DAPM_INPUT("AIN8"),
- SND_SOC_DAPM_ADC("ADC Ch1", NULL, AK5558_00_POWER_MANAGEMENT1, 0, 0),
- SND_SOC_DAPM_ADC("ADC Ch2", NULL, AK5558_00_POWER_MANAGEMENT1, 1, 0),
- SND_SOC_DAPM_ADC("ADC Ch3", NULL, AK5558_00_POWER_MANAGEMENT1, 2, 0),
- SND_SOC_DAPM_ADC("ADC Ch4", NULL, AK5558_00_POWER_MANAGEMENT1, 3, 0),
- SND_SOC_DAPM_ADC("ADC Ch5", NULL, AK5558_00_POWER_MANAGEMENT1, 4, 0),
- SND_SOC_DAPM_ADC("ADC Ch6", NULL, AK5558_00_POWER_MANAGEMENT1, 5, 0),
- SND_SOC_DAPM_ADC("ADC Ch7", NULL, AK5558_00_POWER_MANAGEMENT1, 6, 0),
- SND_SOC_DAPM_ADC("ADC Ch8", NULL, AK5558_00_POWER_MANAGEMENT1, 7, 0),
- SND_SOC_DAPM_AIF_OUT("SDTO", "Capture", 0, SND_SOC_NOPM, 0, 0),
- };
- static const struct snd_soc_dapm_widget ak5552_dapm_widgets[] = {
- /* Analog Input */
- SND_SOC_DAPM_INPUT("AIN1"),
- SND_SOC_DAPM_INPUT("AIN2"),
- SND_SOC_DAPM_ADC("ADC Ch1", NULL, AK5558_00_POWER_MANAGEMENT1, 0, 0),
- SND_SOC_DAPM_ADC("ADC Ch2", NULL, AK5558_00_POWER_MANAGEMENT1, 1, 0),
- SND_SOC_DAPM_AIF_OUT("SDTO", "Capture", 0, SND_SOC_NOPM, 0, 0),
- };
- static const struct snd_soc_dapm_route ak5558_intercon[] = {
- {"ADC Ch1", NULL, "AIN1"},
- {"SDTO", NULL, "ADC Ch1"},
- {"ADC Ch2", NULL, "AIN2"},
- {"SDTO", NULL, "ADC Ch2"},
- {"ADC Ch3", NULL, "AIN3"},
- {"SDTO", NULL, "ADC Ch3"},
- {"ADC Ch4", NULL, "AIN4"},
- {"SDTO", NULL, "ADC Ch4"},
- {"ADC Ch5", NULL, "AIN5"},
- {"SDTO", NULL, "ADC Ch5"},
- {"ADC Ch6", NULL, "AIN6"},
- {"SDTO", NULL, "ADC Ch6"},
- {"ADC Ch7", NULL, "AIN7"},
- {"SDTO", NULL, "ADC Ch7"},
- {"ADC Ch8", NULL, "AIN8"},
- {"SDTO", NULL, "ADC Ch8"},
- };
- static const struct snd_soc_dapm_route ak5552_intercon[] = {
- {"ADC Ch1", NULL, "AIN1"},
- {"SDTO", NULL, "ADC Ch1"},
- {"ADC Ch2", NULL, "AIN2"},
- {"SDTO", NULL, "ADC Ch2"},
- };
- static int ak5558_set_mcki(struct snd_soc_component *component)
- {
- return snd_soc_component_update_bits(component, AK5558_02_CONTROL1, AK5558_CKS,
- AK5558_CKS_AUTO);
- }
- static int ak5558_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
- {
- struct snd_soc_component *component = dai->component;
- struct ak5558_priv *ak5558 = snd_soc_component_get_drvdata(component);
- u8 bits;
- int pcm_width = max(params_physical_width(params), ak5558->slot_width);
- switch (pcm_width) {
- case 16:
- bits = AK5558_DIF_24BIT_MODE;
- break;
- case 32:
- bits = AK5558_DIF_32BIT_MODE;
- break;
- default:
- return -EINVAL;
- }
- snd_soc_component_update_bits(component, AK5558_02_CONTROL1, AK5558_BITS, bits);
- return 0;
- }
- static int ak5558_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
- {
- struct snd_soc_component *component = dai->component;
- u8 format;
- switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
- case SND_SOC_DAIFMT_CBC_CFC:
- break;
- case SND_SOC_DAIFMT_CBP_CFP:
- break;
- case SND_SOC_DAIFMT_CBC_CFP:
- case SND_SOC_DAIFMT_CBP_CFC:
- default:
- dev_err(dai->dev, "Clock mode unsupported");
- return -EINVAL;
- }
- /* set master/slave audio interface */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_I2S:
- format = AK5558_DIF_I2S_MODE;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- format = AK5558_DIF_MSB_MODE;
- break;
- case SND_SOC_DAIFMT_DSP_B:
- format = AK5558_DIF_MSB_MODE;
- break;
- default:
- return -EINVAL;
- }
- snd_soc_component_update_bits(component, AK5558_02_CONTROL1, AK5558_DIF, format);
- return 0;
- }
- static int ak5558_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
- unsigned int rx_mask, int slots,
- int slot_width)
- {
- struct snd_soc_component *component = dai->component;
- struct ak5558_priv *ak5558 = snd_soc_component_get_drvdata(component);
- int tdm_mode;
- ak5558->slots = slots;
- ak5558->slot_width = slot_width;
- switch (slots * slot_width) {
- case 128:
- tdm_mode = AK5558_MODE_TDM128;
- break;
- case 256:
- tdm_mode = AK5558_MODE_TDM256;
- break;
- case 512:
- tdm_mode = AK5558_MODE_TDM512;
- break;
- default:
- tdm_mode = AK5558_MODE_NORMAL;
- break;
- }
- snd_soc_component_update_bits(component, AK5558_03_CONTROL2, AK5558_MODE_BITS,
- tdm_mode);
- return 0;
- }
- #define AK5558_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
- SNDRV_PCM_FMTBIT_S24_LE |\
- SNDRV_PCM_FMTBIT_S32_LE)
- static const unsigned int ak5558_rates[] = {
- 8000, 11025, 16000, 22050,
- 32000, 44100, 48000, 88200,
- 96000, 176400, 192000, 352800,
- 384000, 705600, 768000, 1411200,
- 2822400,
- };
- static const struct snd_pcm_hw_constraint_list ak5558_rate_constraints = {
- .count = ARRAY_SIZE(ak5558_rates),
- .list = ak5558_rates,
- };
- static int ak5558_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
- {
- return snd_pcm_hw_constraint_list(substream->runtime, 0,
- SNDRV_PCM_HW_PARAM_RATE,
- &ak5558_rate_constraints);
- }
- static const struct snd_soc_dai_ops ak5558_dai_ops = {
- .startup = ak5558_startup,
- .hw_params = ak5558_hw_params,
- .set_fmt = ak5558_set_dai_fmt,
- .set_tdm_slot = ak5558_set_tdm_slot,
- };
- static struct snd_soc_dai_driver ak5558_dai = {
- .name = "ak5558-aif",
- .capture = {
- .stream_name = "Capture",
- .channels_min = 1,
- .channels_max = 8,
- .rates = SNDRV_PCM_RATE_KNOT,
- .formats = AK5558_FORMATS,
- },
- .ops = &ak5558_dai_ops,
- };
- static struct snd_soc_dai_driver ak5552_dai = {
- .name = "ak5552-aif",
- .capture = {
- .stream_name = "Capture",
- .channels_min = 1,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_KNOT,
- .formats = AK5558_FORMATS,
- },
- .ops = &ak5558_dai_ops,
- };
- static void ak5558_reset(struct ak5558_priv *ak5558, bool active)
- {
- if (!ak5558->reset_gpiod)
- return;
- gpiod_set_value_cansleep(ak5558->reset_gpiod, active);
- usleep_range(1000, 2000);
- }
- static int ak5558_probe(struct snd_soc_component *component)
- {
- struct ak5558_priv *ak5558 = snd_soc_component_get_drvdata(component);
- ak5558_reset(ak5558, false);
- return ak5558_set_mcki(component);
- }
- static void ak5558_remove(struct snd_soc_component *component)
- {
- struct ak5558_priv *ak5558 = snd_soc_component_get_drvdata(component);
- ak5558_reset(ak5558, true);
- }
- static int __maybe_unused ak5558_runtime_suspend(struct device *dev)
- {
- struct ak5558_priv *ak5558 = dev_get_drvdata(dev);
- regcache_cache_only(ak5558->regmap, true);
- ak5558_reset(ak5558, true);
- regulator_bulk_disable(ARRAY_SIZE(ak5558->supplies),
- ak5558->supplies);
- return 0;
- }
- static int __maybe_unused ak5558_runtime_resume(struct device *dev)
- {
- struct ak5558_priv *ak5558 = dev_get_drvdata(dev);
- int ret;
- ret = regulator_bulk_enable(ARRAY_SIZE(ak5558->supplies),
- ak5558->supplies);
- if (ret != 0) {
- dev_err(dev, "Failed to enable supplies: %d\n", ret);
- return ret;
- }
- ak5558_reset(ak5558, true);
- ak5558_reset(ak5558, false);
- regcache_cache_only(ak5558->regmap, false);
- regcache_mark_dirty(ak5558->regmap);
- return regcache_sync(ak5558->regmap);
- }
- static const struct dev_pm_ops ak5558_pm = {
- SET_RUNTIME_PM_OPS(ak5558_runtime_suspend, ak5558_runtime_resume, NULL)
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
- };
- static const struct snd_soc_component_driver soc_codec_dev_ak5558 = {
- .probe = ak5558_probe,
- .remove = ak5558_remove,
- .controls = ak5558_snd_controls,
- .num_controls = ARRAY_SIZE(ak5558_snd_controls),
- .dapm_widgets = ak5558_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(ak5558_dapm_widgets),
- .dapm_routes = ak5558_intercon,
- .num_dapm_routes = ARRAY_SIZE(ak5558_intercon),
- .idle_bias_on = 1,
- .use_pmdown_time = 1,
- .endianness = 1,
- };
- static const struct snd_soc_component_driver soc_codec_dev_ak5552 = {
- .probe = ak5558_probe,
- .remove = ak5558_remove,
- .controls = ak5552_snd_controls,
- .num_controls = ARRAY_SIZE(ak5552_snd_controls),
- .dapm_widgets = ak5552_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(ak5552_dapm_widgets),
- .dapm_routes = ak5552_intercon,
- .num_dapm_routes = ARRAY_SIZE(ak5552_intercon),
- .idle_bias_on = 1,
- .use_pmdown_time = 1,
- .endianness = 1,
- };
- static const struct regmap_config ak5558_regmap = {
- .reg_bits = 8,
- .val_bits = 8,
- .max_register = AK5558_05_DSD,
- .reg_defaults = ak5558_reg,
- .num_reg_defaults = ARRAY_SIZE(ak5558_reg),
- .cache_type = REGCACHE_RBTREE,
- };
- static int ak5558_i2c_probe(struct i2c_client *i2c)
- {
- struct ak5558_priv *ak5558;
- int ret = 0;
- int dev_id;
- int i;
- ak5558 = devm_kzalloc(&i2c->dev, sizeof(*ak5558), GFP_KERNEL);
- if (!ak5558)
- return -ENOMEM;
- ak5558->regmap = devm_regmap_init_i2c(i2c, &ak5558_regmap);
- if (IS_ERR(ak5558->regmap))
- return PTR_ERR(ak5558->regmap);
- i2c_set_clientdata(i2c, ak5558);
- ak5558->i2c = i2c;
- ak5558->reset_gpiod = devm_gpiod_get_optional(&i2c->dev, "reset",
- GPIOD_OUT_LOW);
- if (IS_ERR(ak5558->reset_gpiod))
- return PTR_ERR(ak5558->reset_gpiod);
- for (i = 0; i < ARRAY_SIZE(ak5558->supplies); i++)
- ak5558->supplies[i].supply = ak5558_supply_names[i];
- ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(ak5558->supplies),
- ak5558->supplies);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
- return ret;
- }
- dev_id = (uintptr_t)of_device_get_match_data(&i2c->dev);
- switch (dev_id) {
- case AK5552:
- ret = devm_snd_soc_register_component(&i2c->dev,
- &soc_codec_dev_ak5552,
- &ak5552_dai, 1);
- break;
- case AK5558:
- ret = devm_snd_soc_register_component(&i2c->dev,
- &soc_codec_dev_ak5558,
- &ak5558_dai, 1);
- break;
- default:
- dev_err(&i2c->dev, "unexpected device type\n");
- return -EINVAL;
- }
- if (ret < 0) {
- dev_err(&i2c->dev, "failed to register component: %d\n", ret);
- return ret;
- }
- pm_runtime_enable(&i2c->dev);
- regcache_cache_only(ak5558->regmap, true);
- return 0;
- }
- static void ak5558_i2c_remove(struct i2c_client *i2c)
- {
- pm_runtime_disable(&i2c->dev);
- }
- static const struct of_device_id ak5558_i2c_dt_ids[] __maybe_unused = {
- { .compatible = "asahi-kasei,ak5558", .data = (void *) AK5558 },
- { .compatible = "asahi-kasei,ak5552", .data = (void *) AK5552 },
- { }
- };
- MODULE_DEVICE_TABLE(of, ak5558_i2c_dt_ids);
- static struct i2c_driver ak5558_i2c_driver = {
- .driver = {
- .name = "ak5558",
- .of_match_table = of_match_ptr(ak5558_i2c_dt_ids),
- .pm = &ak5558_pm,
- },
- .probe_new = ak5558_i2c_probe,
- .remove = ak5558_i2c_remove,
- };
- module_i2c_driver(ak5558_i2c_driver);
- MODULE_AUTHOR("Junichi Wakasugi <[email protected]>");
- MODULE_AUTHOR("Mihai Serban <[email protected]>");
- MODULE_DESCRIPTION("ASoC AK5558 ADC driver");
- MODULE_LICENSE("GPL v2");
|