--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PCM3060 codec driver
+ *
+ * Copyright (C) 2018 Kirill Marinushkin <kmarinushkin@birdec.tech>
+ */
+
+#include <linux/module.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "pcm3060.h"
+
+/* dai */
+
+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);
+
+ if (dir != SND_SOC_CLOCK_IN) {
+ dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir);
+ return -EINVAL;
+ }
+
+ 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_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ priv->dai[dai->id].is_master = true;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ priv->dai[dai->id].is_master = false;
+ break;
+ default:
+ dev_err(comp->dev, "unsupported DAI master 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;
+ }
+
+ reg = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG67 : PCM3060_REG72);
+
+ regmap_update_bits(priv->regmap, reg, 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_master) {
+ 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:
+ reg = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG67 : PCM3060_REG72);
+
+ regmap_update_bits(priv->regmap, reg, 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,
+ },
+};
+
+/* 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_OUTPUT("OUTL+"),
+ SND_SOC_DAPM_OUTPUT("OUTR+"),
+ SND_SOC_DAPM_OUTPUT("OUTL-"),
+ SND_SOC_DAPM_OUTPUT("OUTR-"),
+
+ SND_SOC_DAPM_INPUT("INL"),
+ SND_SOC_DAPM_INPUT("INR"),
+};
+
+static const struct snd_soc_dapm_route pcm3060_dapm_map[] = {
+ { "OUTL+", NULL, "Playback" },
+ { "OUTR+", NULL, "Playback" },
+ { "OUTL-", NULL, "Playback" },
+ { "OUTR-", NULL, "Playback" },
+
+ { "Capture", NULL, "INL" },
+ { "Capture", 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),
+};
+
+/* 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 */
+
+int pcm3060_probe(struct device *dev)
+{
+ int rc;
+
+ rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,
+ pcm3060_dai,
+ ARRAY_SIZE(pcm3060_dai));
+ if (rc) {
+ dev_err(dev, "failed to register component, rc=%d\n", rc);
+ return rc;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(pcm3060_probe);
+
+MODULE_DESCRIPTION("PCM3060 codec driver");
+MODULE_AUTHOR("Kirill Marinushkin <kmarinushkin@birdec.tech>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * PCM3060 codec driver
+ *
+ * Copyright (C) 2018 Kirill Marinushkin <kmarinushkin@birdec.tech>
+ */
+
+#ifndef _SND_SOC_PCM3060_H
+#define _SND_SOC_PCM3060_H
+
+#include <linux/device.h>
+#include <linux/regmap.h>
+
+extern const struct regmap_config pcm3060_regmap;
+
+#define PCM3060_DAI_ID_DAC 0
+#define PCM3060_DAI_ID_ADC 1
+#define PCM3060_DAI_IDS_NUM 2
+
+struct pcm3060_priv_dai {
+ bool is_master;
+ unsigned int sclk_freq;
+};
+
+struct pcm3060_priv {
+ struct regmap *regmap;
+ struct pcm3060_priv_dai dai[PCM3060_DAI_IDS_NUM];
+};
+
+int pcm3060_probe(struct device *dev);
+int pcm3060_remove(struct device *dev);
+
+/* registers */
+
+#define PCM3060_REG64 0x40
+#define PCM3060_REG_MRST 0x80
+#define PCM3060_REG_SRST 0x40
+#define PCM3060_REG_ADPSV 0x20
+#define PCM3060_REG_DAPSV 0x10
+#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
+
+#endif /* _SND_SOC_PCM3060_H */
projects / platform / kernel / linux-rpi.git / commitdiff