| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Adrien Charruel | 1900 | 100.00% | 1 | 100.00% |
| Total | 1900 | 1 |
// SPDX-License-Identifier: GPL-2.0 /* * ak4118.c -- Asahi Kasei ALSA Soc Audio driver * * Copyright 2018 DEVIALET */ #include <linux/i2c.h> #include <linux/module.h> #include <linux/of_device.h> #include <linux/of_gpio.h> #include <linux/regmap.h> #include <linux/slab.h> #include <sound/asoundef.h> #include <sound/core.h> #include <sound/initval.h> #include <sound/soc.h> #define AK4118_REG_CLK_PWR_CTL 0x00 #define AK4118_REG_FORMAT_CTL 0x01 #define AK4118_REG_IO_CTL0 0x02 #define AK4118_REG_IO_CTL1 0x03 #define AK4118_REG_INT0_MASK 0x04 #define AK4118_REG_INT1_MASK 0x05 #define AK4118_REG_RCV_STATUS0 0x06 #define AK4118_REG_RCV_STATUS1 0x07 #define AK4118_REG_RXCHAN_STATUS0 0x08 #define AK4118_REG_RXCHAN_STATUS1 0x09 #define AK4118_REG_RXCHAN_STATUS2 0x0a #define AK4118_REG_RXCHAN_STATUS3 0x0b #define AK4118_REG_RXCHAN_STATUS4 0x0c #define AK4118_REG_TXCHAN_STATUS0 0x0d #define AK4118_REG_TXCHAN_STATUS1 0x0e #define AK4118_REG_TXCHAN_STATUS2 0x0f #define AK4118_REG_TXCHAN_STATUS3 0x10 #define AK4118_REG_TXCHAN_STATUS4 0x11 #define AK4118_REG_BURST_PREAMB_PC0 0x12 #define AK4118_REG_BURST_PREAMB_PC1 0x13 #define AK4118_REG_BURST_PREAMB_PD0 0x14 #define AK4118_REG_BURST_PREAMB_PD1 0x15 #define AK4118_REG_QSUB_CTL 0x16 #define AK4118_REG_QSUB_TRACK 0x17 #define AK4118_REG_QSUB_INDEX 0x18 #define AK4118_REG_QSUB_MIN 0x19 #define AK4118_REG_QSUB_SEC 0x1a #define AK4118_REG_QSUB_FRAME 0x1b #define AK4118_REG_QSUB_ZERO 0x1c #define AK4118_REG_QSUB_ABS_MIN 0x1d #define AK4118_REG_QSUB_ABS_SEC 0x1e #define AK4118_REG_QSUB_ABS_FRAME 0x1f #define AK4118_REG_GPE 0x20 #define AK4118_REG_GPDR 0x21 #define AK4118_REG_GPSCR 0x22 #define AK4118_REG_GPLR 0x23 #define AK4118_REG_DAT_MASK_DTS 0x24 #define AK4118_REG_RX_DETECT 0x25 #define AK4118_REG_STC_DAT_DETECT 0x26 #define AK4118_REG_RXCHAN_STATUS5 0x27 #define AK4118_REG_TXCHAN_STATUS5 0x28 #define AK4118_REG_MAX 0x29 #define AK4118_REG_FORMAT_CTL_DIF0 (1 << 4) #define AK4118_REG_FORMAT_CTL_DIF1 (1 << 5) #define AK4118_REG_FORMAT_CTL_DIF2 (1 << 6) struct ak4118_priv { struct regmap *regmap; struct gpio_desc *reset; struct gpio_desc *irq; struct snd_soc_component *component; }; static const struct reg_default ak4118_reg_defaults[] = { {AK4118_REG_CLK_PWR_CTL, 0x43}, {AK4118_REG_FORMAT_CTL, 0x6a}, {AK4118_REG_IO_CTL0, 0x88}, {AK4118_REG_IO_CTL1, 0x48}, {AK4118_REG_INT0_MASK, 0xee}, {AK4118_REG_INT1_MASK, 0xb5}, {AK4118_REG_RCV_STATUS0, 0x00}, {AK4118_REG_RCV_STATUS1, 0x10}, {AK4118_REG_TXCHAN_STATUS0, 0x00}, {AK4118_REG_TXCHAN_STATUS1, 0x00}, {AK4118_REG_TXCHAN_STATUS2, 0x00}, {AK4118_REG_TXCHAN_STATUS3, 0x00}, {AK4118_REG_TXCHAN_STATUS4, 0x00}, {AK4118_REG_GPE, 0x77}, {AK4118_REG_GPDR, 0x00}, {AK4118_REG_GPSCR, 0x00}, {AK4118_REG_GPLR, 0x00}, {AK4118_REG_DAT_MASK_DTS, 0x3f}, {AK4118_REG_RX_DETECT, 0x00}, {AK4118_REG_STC_DAT_DETECT, 0x00}, {AK4118_REG_TXCHAN_STATUS5, 0x00}, }; static const char * const ak4118_input_select_txt[] = { "RX0", "RX1", "RX2", "RX3", "RX4", "RX5", "RX6", "RX7", }; static SOC_ENUM_SINGLE_DECL(ak4118_insel_enum, AK4118_REG_IO_CTL1, 0x0, ak4118_input_select_txt); static const struct snd_kcontrol_new ak4118_input_mux_controls = SOC_DAPM_ENUM("Input Select", ak4118_insel_enum); static const char * const ak4118_iec958_fs_txt[] = { "44100", "48000", "32000", "22050", "11025", "24000", "16000", "88200", "8000", "96000", "64000", "176400", "192000", }; static const int ak4118_iec958_fs_val[] = { 0x0, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xA, 0xB, 0xC, 0xE, }; static SOC_VALUE_ENUM_SINGLE_DECL(ak4118_iec958_fs_enum, AK4118_REG_RCV_STATUS1, 0x4, 0x4, ak4118_iec958_fs_txt, ak4118_iec958_fs_val); static struct snd_kcontrol_new ak4118_iec958_controls[] = { SOC_SINGLE("IEC958 Parity Errors", AK4118_REG_RCV_STATUS0, 0, 1, 0), SOC_SINGLE("IEC958 No Audio", AK4118_REG_RCV_STATUS0, 1, 1, 0), SOC_SINGLE("IEC958 PLL Lock", AK4118_REG_RCV_STATUS0, 4, 1, 1), SOC_SINGLE("IEC958 Non PCM", AK4118_REG_RCV_STATUS0, 6, 1, 0), SOC_ENUM("IEC958 Sampling Freq", ak4118_iec958_fs_enum), }; static const struct snd_soc_dapm_widget ak4118_dapm_widgets[] = { SND_SOC_DAPM_INPUT("INRX0"), SND_SOC_DAPM_INPUT("INRX1"), SND_SOC_DAPM_INPUT("INRX2"), SND_SOC_DAPM_INPUT("INRX3"), SND_SOC_DAPM_INPUT("INRX4"), SND_SOC_DAPM_INPUT("INRX5"), SND_SOC_DAPM_INPUT("INRX6"), SND_SOC_DAPM_INPUT("INRX7"), SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ak4118_input_mux_controls), }; static const struct snd_soc_dapm_route ak4118_dapm_routes[] = { {"Input Mux", "RX0", "INRX0"}, {"Input Mux", "RX1", "INRX1"}, {"Input Mux", "RX2", "INRX2"}, {"Input Mux", "RX3", "INRX3"}, {"Input Mux", "RX4", "INRX4"}, {"Input Mux", "RX5", "INRX5"}, {"Input Mux", "RX6", "INRX6"}, {"Input Mux", "RX7", "INRX7"}, }; static int ak4118_set_dai_fmt_master(struct ak4118_priv *ak4118, unsigned int format) { int dif; switch (format & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: dif = AK4118_REG_FORMAT_CTL_DIF0 | AK4118_REG_FORMAT_CTL_DIF2; break; case SND_SOC_DAIFMT_RIGHT_J: dif = AK4118_REG_FORMAT_CTL_DIF0 | AK4118_REG_FORMAT_CTL_DIF1; break; case SND_SOC_DAIFMT_LEFT_J: dif = AK4118_REG_FORMAT_CTL_DIF2; break; default: return -ENOTSUPP; } return dif; } static int ak4118_set_dai_fmt_slave(struct ak4118_priv *ak4118, unsigned int format) { int dif; switch (format & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: dif = AK4118_REG_FORMAT_CTL_DIF0 | AK4118_REG_FORMAT_CTL_DIF1 | AK4118_REG_FORMAT_CTL_DIF2; break; case SND_SOC_DAIFMT_LEFT_J: dif = AK4118_REG_FORMAT_CTL_DIF1 | AK4118_REG_FORMAT_CTL_DIF2; break; default: return -ENOTSUPP; } return dif; } static int ak4118_set_dai_fmt(struct snd_soc_dai *dai, unsigned int format) { struct snd_soc_component *component = dai->component; struct ak4118_priv *ak4118 = snd_soc_component_get_drvdata(component); int dif; int ret = 0; switch (format & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: /* component is master */ dif = ak4118_set_dai_fmt_master(ak4118, format); break; case SND_SOC_DAIFMT_CBS_CFS: /*component is slave */ dif = ak4118_set_dai_fmt_slave(ak4118, format); break; default: ret = -ENOTSUPP; goto exit; } /* format not supported */ if (dif < 0) { ret = dif; goto exit; } ret = regmap_update_bits(ak4118->regmap, AK4118_REG_FORMAT_CTL, AK4118_REG_FORMAT_CTL_DIF0 | AK4118_REG_FORMAT_CTL_DIF1 | AK4118_REG_FORMAT_CTL_DIF2, dif); if (ret < 0) goto exit; exit: return ret; } static int ak4118_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { return 0; } static const struct snd_soc_dai_ops ak4118_dai_ops = { .hw_params = ak4118_hw_params, .set_fmt = ak4118_set_dai_fmt, }; static struct snd_soc_dai_driver ak4118_dai = { .name = "ak4118-hifi", .capture = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE }, .ops = &ak4118_dai_ops, }; static irqreturn_t ak4118_irq_handler(int irq, void *data) { struct ak4118_priv *ak4118 = data; struct snd_soc_component *component = ak4118->component; struct snd_kcontrol_new *kctl_new; struct snd_kcontrol *kctl; struct snd_ctl_elem_id *id; unsigned int i; if (!component) return IRQ_NONE; for (i = 0; i < ARRAY_SIZE(ak4118_iec958_controls); i++) { kctl_new = &ak4118_iec958_controls[i]; kctl = snd_soc_card_get_kcontrol(component->card, kctl_new->name); if (!kctl) continue; id = &kctl->id; snd_ctl_notify(component->card->snd_card, SNDRV_CTL_EVENT_MASK_VALUE, id); } return IRQ_HANDLED; } static int ak4118_probe(struct snd_soc_component *component) { struct ak4118_priv *ak4118 = snd_soc_component_get_drvdata(component); int ret = 0; ak4118->component = component; /* release reset */ gpiod_set_value(ak4118->reset, 0); /* unmask all int1 sources */ ret = regmap_write(ak4118->regmap, AK4118_REG_INT1_MASK, 0x00); if (ret < 0) { dev_err(component->dev, "failed to write regmap 0x%x 0x%x: %d\n", AK4118_REG_INT1_MASK, 0x00, ret); return ret; } /* rx detect enable on all channels */ ret = regmap_write(ak4118->regmap, AK4118_REG_RX_DETECT, 0xff); if (ret < 0) { dev_err(component->dev, "failed to write regmap 0x%x 0x%x: %d\n", AK4118_REG_RX_DETECT, 0xff, ret); return ret; } ret = snd_soc_add_component_controls(component, ak4118_iec958_controls, ARRAY_SIZE(ak4118_iec958_controls)); if (ret) { dev_err(component->dev, "failed to add component kcontrols: %d\n", ret); return ret; } return 0; } static void ak4118_remove(struct snd_soc_component *component) { struct ak4118_priv *ak4118 = snd_soc_component_get_drvdata(component); /* hold reset */ gpiod_set_value(ak4118->reset, 1); } static const struct snd_soc_component_driver soc_component_drv_ak4118 = { .probe = ak4118_probe, .remove = ak4118_remove, .dapm_widgets = ak4118_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ak4118_dapm_widgets), .dapm_routes = ak4118_dapm_routes, .num_dapm_routes = ARRAY_SIZE(ak4118_dapm_routes), .idle_bias_on = 1, .use_pmdown_time = 1, .endianness = 1, .non_legacy_dai_naming = 1, }; static const struct regmap_config ak4118_regmap = { .reg_bits = 8, .val_bits = 8, .reg_defaults = ak4118_reg_defaults, .num_reg_defaults = ARRAY_SIZE(ak4118_reg_defaults), .cache_type = REGCACHE_NONE, .max_register = AK4118_REG_MAX - 1, }; static int ak4118_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct ak4118_priv *ak4118; int ret; ak4118 = devm_kzalloc(&i2c->dev, sizeof(struct ak4118_priv), GFP_KERNEL); if (ak4118 == NULL) return -ENOMEM; ak4118->regmap = devm_regmap_init_i2c(i2c, &ak4118_regmap); if (IS_ERR(ak4118->regmap)) return PTR_ERR(ak4118->regmap); i2c_set_clientdata(i2c, ak4118); ak4118->reset = devm_gpiod_get(&i2c->dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(ak4118->reset)) { ret = PTR_ERR(ak4118->reset); if (ret != -EPROBE_DEFER) dev_err(&i2c->dev, "Failed to get reset: %d\n", ret); return ret; } ak4118->irq = devm_gpiod_get(&i2c->dev, "irq", GPIOD_IN); if (IS_ERR(ak4118->irq)) { ret = PTR_ERR(ak4118->irq); if (ret != -EPROBE_DEFER) dev_err(&i2c->dev, "Failed to get IRQ: %d\n", ret); return ret; } ret = devm_request_threaded_irq(&i2c->dev, gpiod_to_irq(ak4118->irq), NULL, ak4118_irq_handler, IRQF_TRIGGER_RISING | IRQF_ONESHOT, "ak4118-irq", ak4118); if (ret < 0) { dev_err(&i2c->dev, "Fail to request_irq: %d\n", ret); return ret; } return snd_soc_register_component(&i2c->dev, &soc_component_drv_ak4118, &ak4118_dai, 1); } static int ak4118_i2c_remove(struct i2c_client *i2c) { snd_soc_unregister_component(&i2c->dev); return 0; } static const struct of_device_id ak4118_of_match[] = { { .compatible = "asahi-kasei,ak4118", }, {} }; MODULE_DEVICE_TABLE(of, ak4118_of_match); static const struct i2c_device_id ak4118_id_table[] = { { "ak4118", 0 }, {} }; MODULE_DEVICE_TABLE(i2c, ak4118_id_table); static struct i2c_driver ak4118_i2c_driver = { .driver = { .name = "ak4118", .of_match_table = of_match_ptr(ak4118_of_match), }, .id_table = ak4118_id_table, .probe = ak4118_i2c_probe, .remove = ak4118_i2c_remove, }; module_i2c_driver(ak4118_i2c_driver); MODULE_DESCRIPTION("Asahi Kasei AK4118 ALSA SoC driver"); MODULE_AUTHOR("Adrien Charruel <adrien.charruel@devialet.com>"); MODULE_LICENSE("GPL");
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