/* * MAX98504 ALSA SoC Audio driver * * Copyright 2013 - 2014 Maxim Integrated Products * Copyright 2016 Samsung Electronics Co., Ltd. * * 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 #include #include #include #include #include #include #include "max98504.h" static const char * const max98504_supply_names[] = { "DVDD", "DIOVDD", "PVDD", }; #define MAX98504_NUM_SUPPLIES ARRAY_SIZE(max98504_supply_names) struct max98504_priv { struct regmap *regmap; struct regulator_bulk_data supplies[MAX98504_NUM_SUPPLIES]; unsigned int pcm_rx_channels; bool brownout_enable; unsigned int brownout_threshold; unsigned int brownout_attenuation; unsigned int brownout_attack_hold; unsigned int brownout_timed_hold; unsigned int brownout_release_rate; }; static struct reg_default max98504_reg_defaults[] = { { 0x01, 0}, { 0x02, 0}, { 0x03, 0}, { 0x04, 0}, { 0x10, 0}, { 0x11, 0}, { 0x12, 0}, { 0x13, 0}, { 0x14, 0}, { 0x15, 0}, { 0x16, 0}, { 0x17, 0}, { 0x18, 0}, { 0x19, 0}, { 0x1A, 0}, { 0x20, 0}, { 0x21, 0}, { 0x22, 0}, { 0x23, 0}, { 0x24, 0}, { 0x25, 0}, { 0x26, 0}, { 0x27, 0}, { 0x28, 0}, { 0x30, 0}, { 0x31, 0}, { 0x32, 0}, { 0x33, 0}, { 0x34, 0}, { 0x35, 0}, { 0x36, 0}, { 0x37, 0}, { 0x38, 0}, { 0x39, 0}, { 0x40, 0}, { 0x41, 0}, }; static bool max98504_volatile_register(struct device *dev, unsigned int reg) { switch (reg) { case MAX98504_INTERRUPT_STATUS: case MAX98504_INTERRUPT_FLAGS: case MAX98504_INTERRUPT_FLAG_CLEARS: case MAX98504_WATCHDOG_CLEAR: case MAX98504_GLOBAL_ENABLE: case MAX98504_SOFTWARE_RESET: return true; default: return false; } } static bool max98504_readable_register(struct device *dev, unsigned int reg) { switch (reg) { case MAX98504_SOFTWARE_RESET: case MAX98504_WATCHDOG_CLEAR: case MAX98504_INTERRUPT_FLAG_CLEARS: return false; default: return true; } } static int max98504_pcm_rx_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm); struct max98504_priv *max98504 = snd_soc_component_get_drvdata(c); switch (event) { case SND_SOC_DAPM_PRE_PMU: regmap_write(max98504->regmap, MAX98504_PCM_RX_ENABLE, max98504->pcm_rx_channels); break; case SND_SOC_DAPM_POST_PMD: regmap_write(max98504->regmap, MAX98504_PCM_RX_ENABLE, 0); break; } return 0; } static int max98504_component_probe(struct snd_soc_component *c) { struct max98504_priv *max98504 = snd_soc_component_get_drvdata(c); struct regmap *map = max98504->regmap; int ret; ret = regulator_bulk_enable(MAX98504_NUM_SUPPLIES, max98504->supplies); if (ret < 0) return ret; regmap_write(map, MAX98504_SOFTWARE_RESET, 0x1); msleep(20); if (!max98504->brownout_enable) return 0; regmap_write(map, MAX98504_PVDD_BROWNOUT_ENABLE, 0x1); regmap_write(map, MAX98504_PVDD_BROWNOUT_CONFIG_1, (max98504->brownout_threshold & 0x1f) << 3 | (max98504->brownout_attenuation & 0x3)); regmap_write(map, MAX98504_PVDD_BROWNOUT_CONFIG_2, max98504->brownout_attack_hold & 0xff); regmap_write(map, MAX98504_PVDD_BROWNOUT_CONFIG_3, max98504->brownout_timed_hold & 0xff); regmap_write(map, MAX98504_PVDD_BROWNOUT_CONFIG_4, max98504->brownout_release_rate & 0xff); return 0; } static void max98504_component_remove(struct snd_soc_component *c) { struct max98504_priv *max98504 = snd_soc_component_get_drvdata(c); regulator_bulk_disable(MAX98504_NUM_SUPPLIES, max98504->supplies); } static const char *spk_source_mux_text[] = { "PCM Monomix", "Analog In", "PDM Left", "PDM Right" }; static const struct soc_enum spk_source_mux_enum = SOC_ENUM_SINGLE(MAX98504_SPEAKER_SOURCE_SELECT, 0, ARRAY_SIZE(spk_source_mux_text), spk_source_mux_text); static const struct snd_kcontrol_new spk_source_mux = SOC_DAPM_ENUM("SPK Source", spk_source_mux_enum); static const struct snd_soc_dapm_route max98504_dapm_routes[] = { { "SPKOUT", NULL, "Global Enable" }, { "SPK Source", "PCM Monomix", "DAC PCM" }, { "SPK Source", "Analog In", "AIN" }, { "SPK Source", "PDM Left", "DAC PDM" }, { "SPK Source", "PDM Right", "DAC PDM" }, }; static const struct snd_soc_dapm_widget max98504_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("Global Enable", MAX98504_GLOBAL_ENABLE, 0, 0, NULL, 0), SND_SOC_DAPM_INPUT("AIN"), SND_SOC_DAPM_AIF_OUT("AIF2OUTL", "AIF2 Capture", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_OUT("AIF2OUTR", "AIF2 Capture", 1, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_DAC_E("DAC PCM", NULL, SND_SOC_NOPM, 0, 0, max98504_pcm_rx_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_DAC("DAC PDM", NULL, MAX98504_PDM_RX_ENABLE, 0, 0), SND_SOC_DAPM_MUX("SPK Source", SND_SOC_NOPM, 0, 0, &spk_source_mux), SND_SOC_DAPM_REG(snd_soc_dapm_spk, "SPKOUT", MAX98504_SPEAKER_ENABLE, 0, 1, 1, 0), }; static int max98504_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { struct max98504_priv *max98504 = snd_soc_dai_get_drvdata(dai); struct regmap *map = max98504->regmap; switch (dai->id) { case MAX98504_DAI_ID_PCM: regmap_write(map, MAX98504_PCM_TX_ENABLE, tx_mask); max98504->pcm_rx_channels = rx_mask; break; case MAX98504_DAI_ID_PDM: regmap_write(map, MAX98504_PDM_TX_ENABLE, tx_mask); break; default: WARN_ON(1); } return 0; } static int max98504_set_channel_map(struct snd_soc_dai *dai, unsigned int tx_num, unsigned int *tx_slot, unsigned int rx_num, unsigned int *rx_slot) { struct max98504_priv *max98504 = snd_soc_dai_get_drvdata(dai); struct regmap *map = max98504->regmap; unsigned int i, sources = 0; for (i = 0; i < tx_num; i++) if (tx_slot[i]) sources |= (1 << i); switch (dai->id) { case MAX98504_DAI_ID_PCM: regmap_write(map, MAX98504_PCM_TX_CHANNEL_SOURCES, sources); break; case MAX98504_DAI_ID_PDM: regmap_write(map, MAX98504_PDM_TX_CONTROL, sources); break; default: WARN_ON(1); } regmap_write(map, MAX98504_MEASUREMENT_ENABLE, sources ? 0x3 : 0x01); return 0; } static const struct snd_soc_dai_ops max98504_dai_ops = { .set_tdm_slot = max98504_set_tdm_slot, .set_channel_map = max98504_set_channel_map, }; #define MAX98504_FORMATS (SNDRV_PCM_FMTBIT_S8|SNDRV_PCM_FMTBIT_S16_LE|\ SNDRV_PCM_FMTBIT_S24_LE|SNDRV_PCM_FMTBIT_S32_LE) #define MAX98504_PDM_RATES (SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|\ SNDRV_PCM_RATE_32000|SNDRV_PCM_RATE_44100|\ SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_88200|\ SNDRV_PCM_RATE_96000) static struct snd_soc_dai_driver max98504_dai[] = { /* TODO: Add the PCM interface definitions */ { .name = "max98504-aif2", .id = MAX98504_DAI_ID_PDM, .playback = { .stream_name = "AIF2 Playback", .channels_min = 1, .channels_max = 2, .rates = MAX98504_PDM_RATES, .formats = MAX98504_FORMATS, }, .capture = { .stream_name = "AIF2 Capture", .channels_min = 1, .channels_max = 2, .rates = MAX98504_PDM_RATES, .formats = MAX98504_FORMATS, }, .ops = &max98504_dai_ops, }, }; static const struct snd_soc_component_driver max98504_component_driver = { .probe = max98504_component_probe, .remove = max98504_component_remove, .dapm_widgets = max98504_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(max98504_dapm_widgets), .dapm_routes = max98504_dapm_routes, .num_dapm_routes = ARRAY_SIZE(max98504_dapm_routes), }; static const struct regmap_config max98504_regmap = { .reg_bits = 16, .val_bits = 8, .max_register = MAX98504_MAX_REGISTER, .reg_defaults = max98504_reg_defaults, .num_reg_defaults = ARRAY_SIZE(max98504_reg_defaults), .volatile_reg = max98504_volatile_register, .readable_reg = max98504_readable_register, .cache_type = REGCACHE_RBTREE, }; static int max98504_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device_node *node = dev->of_node; struct max98504_priv *max98504; int i, ret; max98504 = devm_kzalloc(dev, sizeof(*max98504), GFP_KERNEL); if (!max98504) return -ENOMEM; if (node) { if (!of_property_read_u32(node, "maxim,brownout-threshold", &max98504->brownout_threshold)) max98504->brownout_enable = true; of_property_read_u32(node, "maxim,brownout-attenuation", &max98504->brownout_attenuation); of_property_read_u32(node, "maxim,brownout-attack-hold-ms", &max98504->brownout_attack_hold); of_property_read_u32(node, "maxim,brownout-timed-hold-ms", &max98504->brownout_timed_hold); of_property_read_u32(node, "maxim,brownout-release-rate-ms", &max98504->brownout_release_rate); } max98504->regmap = devm_regmap_init_i2c(client, &max98504_regmap); if (IS_ERR(max98504->regmap)) { ret = PTR_ERR(max98504->regmap); dev_err(&client->dev, "regmap initialization failed: %d\n", ret); return ret; } for (i = 0; i < MAX98504_NUM_SUPPLIES; i++) max98504->supplies[i].supply = max98504_supply_names[i]; ret = devm_regulator_bulk_get(dev, MAX98504_NUM_SUPPLIES, max98504->supplies); if (ret < 0) return ret; i2c_set_clientdata(client, max98504); return devm_snd_soc_register_component(dev, &max98504_component_driver, max98504_dai, ARRAY_SIZE(max98504_dai)); } #ifdef CONFIG_OF static const struct of_device_id max98504_of_match[] = { { .compatible = "maxim,max98504" }, { }, }; MODULE_DEVICE_TABLE(of, max98504_of_match); #endif static const struct i2c_device_id max98504_i2c_id[] = { { "max98504" }, { } }; MODULE_DEVICE_TABLE(i2c, max98504_i2c_id); static struct i2c_driver max98504_i2c_driver = { .driver = { .name = "max98504", .of_match_table = of_match_ptr(max98504_of_match), }, .probe = max98504_i2c_probe, .id_table = max98504_i2c_id, }; module_i2c_driver(max98504_i2c_driver); MODULE_DESCRIPTION("ASoC MAX98504 driver"); MODULE_LICENSE("GPL"); d-id.c19054logplain -rw-r--r--build-id.h1859logplain d---------c++184logplain -rw-r--r--cache.h733logplain -rw-r--r--call-path.c2893logplain -rw-r--r--call-path.h2203logplain -rw-r--r--callchain.c29332logplain -rw-r--r--callchain.h7881logplain -rw-r--r--cgroup.c3195logplain -rw-r--r--cgroup.h359logplain -rw-r--r--cloexec.c1950logplain -rw-r--r--cloexec.h251logplain -rw-r--r--color.c4787logplain -rw-r--r--color.h1647logplain -rw-r--r--comm.c2239logplain -rw-r--r--comm.h561logplain -rw-r--r--config.c16262logplain -rw-r--r--config.h2113logplain -rw-r--r--counts.c1026logplain -rw-r--r--counts.h790logplain -rw-r--r--cpumap.c12627logplain -rw-r--r--cpumap.h1954logplain -rw-r--r--cs-etm.h2061logplain -rw-r--r--ctype.c2018logplain -rw-r--r--data-convert-bt.c36671logplain -rw-r--r--data-convert-bt.h302logplain -rw-r--r--data-convert.h141logplain -rw-r--r--data.c3459logplain -rw-r--r--data.h1369logplain -rw-r--r--db-export.c11434logplain -rw-r--r--db-export.h3816logplain -rw-r--r--debug.c4417logplain -rw-r--r--debug.h2023logplain -rw-r--r--demangle-java.c4219logplain -rw-r--r--demangle-java.h249logplain -rw-r--r--demangle-rust.c6602logplain -rw-r--r--demangle-rust.h170logplain -rw-r--r--drv_configs.c1834logplain -rw-r--r--drv_configs.h844logplain -rw-r--r--dso.c31994logplain -rw-r--r--dso.h10399logplain -rw-r--r--dwarf-aux.c33828logplain -rw-r--r--dwarf-aux.h5101logplain -rw-r--r--dwarf-regs.c1816logplain -rw-r--r--env.c1884logplain -rw-r--r--env.h1268logplain -rw-r--r--event.c36670logplain -rw-r--r--event.h15997logplain -rw-r--r--evlist.c47104logplain -rw-r--r--evlist.h12584logplain -rw-r--r--evsel.c63917logplain -rw-r--r--evsel.h13041logplain -rw-r--r--evsel_fprintf.c5831logplain -rw-r--r--find-vdso-map.c581logplain -rw-r--r--genelf.c11653logplain -rw-r--r--genelf.h1814logplain -rw-r--r--genelf_debug.c14374logplain -rwxr-xr-xgenerate-cmdlist.sh1141logplain -rw-r--r--group.h122logplain -rw-r--r--header.c73410logplain -rw-r--r--header.h4365logplain -rw-r--r--help-unknown-cmd.c3221logplain