// SPDX-License-Identifier: GPL-2.0 // // PCM3060 I2C driver // // Copyright (C) 2018 Kirill Marinushkin #include #include #include #include #include #include #include #define CONFIG_OF 1 #define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK 0xf000 #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f #define SND_SOC_DAIFMT_CBP_CFP (1 << 12) /* codec clk provider & frame provider */ #define SND_SOC_DAIFMT_CBC_CFP (2 << 12) /* codec clk consumer & frame provider */ #define SND_SOC_DAIFMT_CBP_CFC (3 << 12) /* codec clk provider & frame consumer */ #define SND_SOC_DAIFMT_CBC_CFC (4 << 12) /* codec clk consumer & frame follower */ /* * Local Define * */ #define PCM3060_DAI_ID_DAC 0 #define PCM3060_DAI_ID_ADC 1 #define PCM3060_DAI_IDS_NUM 2 /* ADC and DAC can be clocked from separate or same sources CLK1 and CLK2 */ #define PCM3060_CLK_DEF 0 /* default: CLK1->ADC, CLK2->DAC */ #define PCM3060_CLK1 1 #define PCM3060_CLK2 2 struct pcm3060_priv_dai { bool is_provider; unsigned int sclk_freq; }; struct pcm3060_priv { struct regmap *regmap; struct pcm3060_priv_dai dai[PCM3060_DAI_IDS_NUM]; u8 out_se: 1; }; /* registers */ #define PCM3060_REG64 0x40 #define PCM3060_REG_MRST 0x80 #define PCM3060_REG_SRST 0x40 #define PCM3060_REG_ADPSV 0x20 #define PCM3060_REG_SHIFT_ADPSV 0x05 #define PCM3060_REG_DAPSV 0x10 #define PCM3060_REG_SHIFT_DAPSV 0x04 #define PCM3060_REG_SE 0x01 #define PCM3060_REG65 0x41 #define PCM3060_REG66 0x42 #define PCM3060_REG_AT2_MIN 0x36 #define PCM3060_REG_AT2_MAX 0xFF #define PCM3060_REG67 0x43 #define PCM3060_REG72 0x48 #define PCM3060_REG_CSEL 0x80 #define PCM3060_REG_MASK_MS 0x70 #define PCM3060_REG_MS_S 0x00 #define PCM3060_REG_MS_M768 (0x01 << 4) #define PCM3060_REG_MS_M512 (0x02 << 4) #define PCM3060_REG_MS_M384 (0x03 << 4) #define PCM3060_REG_MS_M256 (0x04 << 4) #define PCM3060_REG_MS_M192 (0x05 << 4) #define PCM3060_REG_MS_M128 (0x06 << 4) #define PCM3060_REG_MASK_FMT 0x03 #define PCM3060_REG_FMT_I2S 0x00 #define PCM3060_REG_FMT_LJ 0x01 #define PCM3060_REG_FMT_RJ 0x02 #define PCM3060_REG68 0x44 #define PCM3060_REG_OVER 0x40 #define PCM3060_REG_DREV2 0x04 #define PCM3060_REG_SHIFT_MUT21 0x00 #define PCM3060_REG_SHIFT_MUT22 0x01 #define PCM3060_REG69 0x45 #define PCM3060_REG_FLT 0x80 #define PCM3060_REG_MASK_DMF 0x60 #define PCM3060_REG_DMC 0x10 #define PCM3060_REG_ZREV 0x02 #define PCM3060_REG_AZRO 0x01 #define PCM3060_REG70 0x46 #define PCM3060_REG71 0x47 #define PCM3060_REG_AT1_MIN 0x0E #define PCM3060_REG_AT1_MAX 0xFF #define PCM3060_REG73 0x49 #define PCM3060_REG_ZCDD 0x10 #define PCM3060_REG_BYP 0x08 #define PCM3060_REG_DREV1 0x04 #define PCM3060_REG_SHIFT_MUT11 0x00 #define PCM3060_REG_SHIFT_MUT12 0x01 /* * PCM3060 Codec driver * */ static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_component *comp = dai->component; struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp); unsigned int reg; unsigned int val; if (dir != SND_SOC_CLOCK_IN) { dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir); return -EINVAL; } switch (clk_id) { case PCM3060_CLK_DEF: val = 0; break; case PCM3060_CLK1: val = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG_CSEL : 0); break; case PCM3060_CLK2: val = (dai->id == PCM3060_DAI_ID_DAC ? 0 : PCM3060_REG_CSEL); break; default: dev_err(comp->dev, "unsupported sysclock id: %d\n", clk_id); return -EINVAL; } /*if (dai->id == PCM3060_DAI_ID_DAC) reg = PCM3060_REG67; else reg = PCM3060_REG72; regmap_update_bits(priv->regmap, reg, PCM3060_REG_CSEL, val);*/ regmap_update_bits(priv->regmap, PCM3060_REG67, PCM3060_REG_CSEL, 0); regmap_update_bits(priv->regmap, PCM3060_REG72, PCM3060_REG_CSEL, 0); priv->dai[dai->id].sclk_freq = freq; return 0; } static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_component *comp = dai->component; struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp); unsigned int reg; unsigned int val; if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) { dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt); return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { case SND_SOC_DAIFMT_CBP_CFP: priv->dai[dai->id].is_provider = true; break; case SND_SOC_DAIFMT_CBC_CFC: priv->dai[dai->id].is_provider = false; break; default: dev_err(comp->dev, "unsupported DAI mode: 0x%x\n", fmt); return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: val = PCM3060_REG_FMT_I2S; break; case SND_SOC_DAIFMT_RIGHT_J: val = PCM3060_REG_FMT_RJ; break; case SND_SOC_DAIFMT_LEFT_J: val = PCM3060_REG_FMT_LJ; break; default: dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt); return -EINVAL; } /*if (dai->id == PCM3060_DAI_ID_DAC) reg = PCM3060_REG67; else reg = PCM3060_REG72; regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val);*/ regmap_update_bits(priv->regmap, PCM3060_REG67, PCM3060_REG_MASK_FMT, val); regmap_update_bits(priv->regmap, PCM3060_REG72, PCM3060_REG_MASK_FMT, val); return 0; } static int pcm3060_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_component *comp = dai->component; struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp); unsigned int rate; unsigned int ratio; unsigned int reg; unsigned int val; if (!priv->dai[dai->id].is_provider) { val = PCM3060_REG_MS_S; goto val_ready; } rate = params_rate(params); if (!rate) { dev_err(comp->dev, "rate is not configured\n"); return -EINVAL; } ratio = priv->dai[dai->id].sclk_freq / rate; switch (ratio) { case 768: val = PCM3060_REG_MS_M768; break; case 512: val = PCM3060_REG_MS_M512; break; case 384: val = PCM3060_REG_MS_M384; break; case 256: val = PCM3060_REG_MS_M256; break; case 192: val = PCM3060_REG_MS_M192; break; case 128: val = PCM3060_REG_MS_M128; break; default: dev_err(comp->dev, "unsupported ratio: %d\n", ratio); return -EINVAL; } val_ready: /*if (dai->id == PCM3060_DAI_ID_DAC) reg = PCM3060_REG67; else reg = PCM3060_REG72; regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val);*/ regmap_update_bits(priv->regmap, PCM3060_REG67, PCM3060_REG_MASK_MS, val); regmap_update_bits(priv->regmap, PCM3060_REG72, PCM3060_REG_MASK_MS, val); return 0; } static const struct snd_soc_dai_ops pcm3060_dai_ops = { .set_sysclk = pcm3060_set_sysclk, .set_fmt = pcm3060_set_fmt, .hw_params = pcm3060_hw_params, }; #define PCM3060_DAI_RATES_ADC (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | \ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) #define PCM3060_DAI_RATES_DAC (PCM3060_DAI_RATES_ADC | \ SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000) /*static struct snd_soc_dai_driver pcm3060_dai[] = { { .name = "pcm3060-dac", .id = PCM3060_DAI_ID_DAC, .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = PCM3060_DAI_RATES_DAC, .formats = SNDRV_PCM_FMTBIT_S24_LE, }, .ops = &pcm3060_dai_ops, }, { .name = "pcm3060-adc", .id = PCM3060_DAI_ID_ADC, .capture = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, .rates = PCM3060_DAI_RATES_ADC, .formats = SNDRV_PCM_FMTBIT_S24_LE, }, .ops = &pcm3060_dai_ops, }, };*/ static struct snd_soc_dai_driver pcm3060_dai = { //{ .name = "pcm3060-hifi", //.id = PCM3060_DAI_ID_DAC, .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = PCM3060_DAI_RATES_DAC, .formats = SNDRV_PCM_FMTBIT_S24_LE, }, //.ops = &pcm3060_dai_ops, //}, //{ //.name = "pcm3060-adc", //.id = PCM3060_DAI_ID_ADC, .capture = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, .rates = PCM3060_DAI_RATES_ADC, .formats = SNDRV_PCM_FMTBIT_S24_LE, }, .ops = &pcm3060_dai_ops, //}, }; /* dapm */ static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1); static const struct snd_kcontrol_new pcm3060_dapm_controls[] = { SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume", PCM3060_REG65, PCM3060_REG66, 0, PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX, 0, pcm3060_dapm_tlv), SOC_DOUBLE("Master Playback Switch", PCM3060_REG68, PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1), SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume", PCM3060_REG70, PCM3060_REG71, 0, PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX, 0, pcm3060_dapm_tlv), SOC_DOUBLE("Master Capture Switch", PCM3060_REG73, PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1), }; static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = { SND_SOC_DAPM_DAC("DAC", "Playback", PCM3060_REG64, PCM3060_REG_SHIFT_DAPSV, 1), SND_SOC_DAPM_OUTPUT("OUTL"), SND_SOC_DAPM_OUTPUT("OUTR"), SND_SOC_DAPM_INPUT("INL"), SND_SOC_DAPM_INPUT("INR"), SND_SOC_DAPM_ADC("ADC", "Capture", PCM3060_REG64, PCM3060_REG_SHIFT_ADPSV, 1), }; static const struct snd_soc_dapm_route pcm3060_dapm_map[] = { { "OUTL", NULL, "DAC" }, { "OUTR", NULL, "DAC" }, { "ADC", NULL, "INL" }, { "ADC", NULL, "INR" }, }; /* soc component */ static const struct snd_soc_component_driver pcm3060_soc_comp_driver = { .controls = pcm3060_dapm_controls, .num_controls = ARRAY_SIZE(pcm3060_dapm_controls), .dapm_widgets = pcm3060_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets), .dapm_routes = pcm3060_dapm_map, .num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map), //.endianness = 1, }; /* regmap */ static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg) { return (reg >= PCM3060_REG64); } static bool pcm3060_reg_readable(struct device *dev, unsigned int reg) { return (reg >= PCM3060_REG64); } static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg) { /* PCM3060_REG64 is volatile */ return (reg == PCM3060_REG64); } static const struct reg_default pcm3060_reg_defaults[] = { { PCM3060_REG64, 0xF0 }, { PCM3060_REG65, 0xFF }, { PCM3060_REG66, 0xFF }, { PCM3060_REG67, 0x00 }, { PCM3060_REG68, 0x00 }, { PCM3060_REG69, 0x00 }, { PCM3060_REG70, 0xD7 }, { PCM3060_REG71, 0xD7 }, { PCM3060_REG72, 0x00 }, { PCM3060_REG73, 0x00 }, }; const struct regmap_config pcm3060_regmap = { .reg_bits = 8, .val_bits = 8, .writeable_reg = pcm3060_reg_writeable, .readable_reg = pcm3060_reg_readable, .volatile_reg = pcm3060_reg_volatile, .max_register = PCM3060_REG73, .reg_defaults = pcm3060_reg_defaults, .num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults), .cache_type = REGCACHE_RBTREE, }; EXPORT_SYMBOL(pcm3060_regmap); /* device */ static void pcm3060_parse_dt(const struct device_node *np, struct pcm3060_priv *priv) { priv->out_se = of_property_read_bool(np, "ti,out-single-ended"); } int pcm3060_probe(struct device *dev) { #define regmap_update_bits(map, reg, mask, val) \ regmap_update_bits_base(map, reg, mask, val, NULL, false, false) int rc; struct pcm3060_priv *priv = dev_get_drvdata(dev); /* soft reset */ rc = regmap_update_bits(priv->regmap, PCM3060_REG64, PCM3060_REG_MRST, 0); if (rc) { dev_err(dev, "Failed to reset component, rc=%d\n", rc); //return rc; } if (dev->of_node) pcm3060_parse_dt(dev->of_node, priv); else printk("pcm3060: dev->of_node = NULL!"); if (priv->out_se) regmap_update_bits(priv->regmap, PCM3060_REG64, PCM3060_REG_SE, PCM3060_REG_SE); else printk("pcm3060: priv->out_se = 0!"); /*rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver, pcm3060_dai, ARRAY_SIZE(pcm3060_dai));*/ rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,&pcm3060_dai,1); if (rc) { dev_err(dev, "failed to register component, rc=%d\n", rc); return rc; } return 0; } EXPORT_SYMBOL(pcm3060_probe); /* * PCM3060 i2c driver * */ static int pcm3060_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct pcm3060_priv *priv; printk("pcm3060: i2c_client->name = %s", i2c->name); printk("pcm3060: i2c_client->addr = 0x%x", i2c->addr); priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; i2c_set_clientdata(i2c, priv); priv->regmap = devm_regmap_init_i2c(i2c, &pcm3060_regmap); if (IS_ERR(priv->regmap)) return PTR_ERR(priv->regmap); return pcm3060_probe(&i2c->dev); } static const struct i2c_device_id pcm3060_i2c_id[] = { { .name = "pcm3060" }, { }, }; MODULE_DEVICE_TABLE(i2c, pcm3060_i2c_id); #ifdef CONFIG_OF static const struct of_device_id pcm3060_of_match[] = { { .compatible = "ti,pcm3060" }, { }, }; MODULE_DEVICE_TABLE(of, pcm3060_of_match); #endif /* CONFIG_OF */ static struct i2c_driver pcm3060_i2c_driver = { .driver = { .name = "pcm3060", #ifdef CONFIG_OF .of_match_table = pcm3060_of_match, #endif /* CONFIG_OF */ }, .id_table = pcm3060_i2c_id, .probe = pcm3060_i2c_probe, }; module_i2c_driver(pcm3060_i2c_driver); MODULE_DESCRIPTION("PCM3060 I2C driver"); MODULE_AUTHOR("Kirill Marinushkin "); MODULE_LICENSE("GPL v2");