--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// uda1342.c -- UDA1342 ALSA SoC Codec driver
+// Based on the WM87xx drivers by Liam Girdwood and Richard Purdie
+//
+// Copyright 2007 Dension Audio Systems Ltd.
+// Copyright 2024 Loongson Technology Co.,Ltd.
+//
+// Modifications by Christian Pellegrin <chripell@evolware.org>
+// Further cleanup and restructuring by:
+// Binbin Zhou <zhoubinbin@loongson.cn>
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/pm_runtime.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "uda1342.h"
+
+#define UDA134X_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S20_3LE)
+
+struct uda1342_priv {
+ int sysclk;
+ int dai_fmt;
+
+ struct snd_pcm_substream *provider_substream;
+ struct snd_pcm_substream *consumer_substream;
+
+ struct regmap *regmap;
+ struct i2c_client *i2c;
+};
+
+static const struct reg_default uda1342_reg_defaults[] = {
+ { 0x00, 0x1042 },
+ { 0x01, 0x0000 },
+ { 0x10, 0x0088 },
+ { 0x11, 0x0000 },
+ { 0x12, 0x0000 },
+ { 0x20, 0x0080 },
+ { 0x21, 0x0080 },
+};
+
+static int uda1342_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+ struct snd_soc_component *component = dai->component;
+ struct uda1342_priv *uda1342 = snd_soc_component_get_drvdata(component);
+ unsigned int mask;
+ unsigned int val = 0;
+
+ /* Master mute */
+ mask = BIT(5);
+ if (mute)
+ val = mask;
+
+ return regmap_update_bits(uda1342->regmap, 0x10, mask, val);
+}
+
+static int uda1342_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct uda1342_priv *uda1342 = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *provider_runtime;
+
+ if (uda1342->provider_substream) {
+ provider_runtime = uda1342->provider_substream->runtime;
+
+ snd_pcm_hw_constraint_single(substream->runtime,
+ SNDRV_PCM_HW_PARAM_RATE, provider_runtime->rate);
+ snd_pcm_hw_constraint_single(substream->runtime,
+ SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+ provider_runtime->sample_bits);
+
+ uda1342->consumer_substream = substream;
+ } else {
+ uda1342->provider_substream = substream;
+ }
+
+ return 0;
+}
+
+static void uda1342_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct uda1342_priv *uda1342 = snd_soc_component_get_drvdata(component);
+
+ if (uda1342->provider_substream == substream)
+ uda1342->provider_substream = uda1342->consumer_substream;
+
+ uda1342->consumer_substream = NULL;
+}
+
+static int uda1342_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 uda1342_priv *uda1342 = snd_soc_component_get_drvdata(component);
+ struct device *dev = &uda1342->i2c->dev;
+ unsigned int hw_params = 0;
+
+ if (substream == uda1342->consumer_substream)
+ return 0;
+
+ /* set SYSCLK / fs ratio */
+ switch (uda1342->sysclk / params_rate(params)) {
+ case 512:
+ break;
+ case 384:
+ hw_params |= BIT(4);
+ break;
+ case 256:
+ hw_params |= BIT(5);
+ break;
+ default:
+ dev_err(dev, "unsupported frequency\n");
+ return -EINVAL;
+ }
+
+ /* set DAI format and word length */
+ switch (uda1342->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ switch (params_width(params)) {
+ case 16:
+ hw_params |= BIT(1);
+ break;
+ case 18:
+ hw_params |= BIT(2);
+ break;
+ case 20:
+ hw_params |= BIT(2) | BIT(1);
+ break;
+ default:
+ dev_err(dev, "unsupported format (right)\n");
+ return -EINVAL;
+ }
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ hw_params |= BIT(3);
+ break;
+ default:
+ dev_err(dev, "unsupported format\n");
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(uda1342->regmap, 0x0,
+ STATUS0_DAIFMT_MASK | STATUS0_SYSCLK_MASK, hw_params);
+}
+
+static int uda1342_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct uda1342_priv *uda1342 = snd_soc_component_get_drvdata(component);
+ struct device *dev = &uda1342->i2c->dev;
+
+ /*
+ * Anything between 256fs*8Khz and 512fs*48Khz should be acceptable
+ * because the codec is slave. Of course limitations of the clock
+ * master (the IIS controller) apply.
+ * We'll error out on set_hw_params if it's not OK
+ */
+ if ((freq >= (256 * 8000)) && (freq <= (512 * 48000))) {
+ uda1342->sysclk = freq;
+ return 0;
+ }
+
+ dev_err(dev, "unsupported sysclk\n");
+
+ return -EINVAL;
+}
+
+static int uda1342_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct uda1342_priv *uda1342 = snd_soc_component_get_drvdata(component);
+
+ /* codec supports only full consumer mode */
+ if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_BC_FC) {
+ dev_err(&uda1342->i2c->dev, "unsupported consumer mode.\n");
+ return -EINVAL;
+ }
+
+ /* We can't setup DAI format here as it depends on the word bit num */
+ /* so let's just store the value for later */
+ uda1342->dai_fmt = fmt;
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new uda1342_snd_controls[] = {
+ SOC_SINGLE("Master Playback Volume", 0x11, 0, 0x3F, 1),
+ SOC_SINGLE("Analog1 Volume", 0x12, 0, 0x1F, 1),
+};
+
+/* Common DAPM widgets */
+static const struct snd_soc_dapm_widget uda1342_dapm_widgets[] = {
+ SND_SOC_DAPM_INPUT("VINL1"),
+ SND_SOC_DAPM_INPUT("VINR1"),
+ SND_SOC_DAPM_INPUT("VINL2"),
+ SND_SOC_DAPM_INPUT("VINR2"),
+
+ SND_SOC_DAPM_DAC("DAC", "Playback", 0, 1, 0),
+ SND_SOC_DAPM_ADC("ADC", "Capture", 0, 9, 0),
+
+ SND_SOC_DAPM_OUTPUT("VOUTL"),
+ SND_SOC_DAPM_OUTPUT("VOUTR"),
+};
+
+static const struct snd_soc_dapm_route uda1342_dapm_routes[] = {
+ { "ADC", NULL, "VINL1" },
+ { "ADC", NULL, "VINR1" },
+ { "ADC", NULL, "VINL2" },
+ { "ADC", NULL, "VINR2" },
+ { "VOUTL", NULL, "DAC" },
+ { "VOUTR", NULL, "DAC" },
+};
+
+static const struct snd_soc_dai_ops uda1342_dai_ops = {
+ .startup = uda1342_startup,
+ .shutdown = uda1342_shutdown,
+ .hw_params = uda1342_hw_params,
+ .mute_stream = uda1342_mute,
+ .set_sysclk = uda1342_set_dai_sysclk,
+ .set_fmt = uda1342_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver uda1342_dai = {
+ .name = "uda1342-hifi",
+ /* playback capabilities */
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = UDA134X_FORMATS,
+ },
+ /* capture capabilities */
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = UDA134X_FORMATS,
+ },
+ /* pcm operations */
+ .ops = &uda1342_dai_ops,
+};
+
+static const struct snd_soc_component_driver soc_component_dev_uda1342 = {
+ .controls = uda1342_snd_controls,
+ .num_controls = ARRAY_SIZE(uda1342_snd_controls),
+ .dapm_widgets = uda1342_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(uda1342_dapm_widgets),
+ .dapm_routes = uda1342_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(uda1342_dapm_routes),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static const struct regmap_config uda1342_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+ .max_register = 0x21,
+ .reg_defaults = uda1342_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(uda1342_reg_defaults),
+ .cache_type = REGCACHE_MAPLE,
+};
+
+static int uda1342_i2c_probe(struct i2c_client *i2c)
+{
+ struct uda1342_priv *uda1342;
+
+ uda1342 = devm_kzalloc(&i2c->dev, sizeof(*uda1342), GFP_KERNEL);
+ if (!uda1342)
+ return -ENOMEM;
+
+ uda1342->regmap = devm_regmap_init_i2c(i2c, &uda1342_regmap);
+ if (IS_ERR(uda1342->regmap))
+ return PTR_ERR(uda1342->regmap);
+
+ i2c_set_clientdata(i2c, uda1342);
+ uda1342->i2c = i2c;
+
+ return devm_snd_soc_register_component(&i2c->dev,
+ &soc_component_dev_uda1342,
+ &uda1342_dai, 1);
+}
+
+static int uda1342_suspend(struct device *dev)
+{
+ struct uda1342_priv *uda1342 = dev_get_drvdata(dev);
+
+ regcache_cache_only(uda1342->regmap, true);
+
+ return 0;
+}
+
+static int uda1342_resume(struct device *dev)
+{
+ struct uda1342_priv *uda1342 = dev_get_drvdata(dev);
+
+ regcache_mark_dirty(uda1342->regmap);
+ regcache_sync(uda1342->regmap);
+
+ return 0;
+}
+
+static DEFINE_RUNTIME_DEV_PM_OPS(uda1342_pm_ops,
+ uda1342_suspend, uda1342_resume, NULL);
+
+static const struct i2c_device_id uda1342_i2c_id[] = {
+ { "uda1342", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, uda1342_i2c_id);
+
+static const struct of_device_id uda1342_of_match[] = {
+ { .compatible = "nxp,uda1342" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, uda1342_of_match);
+
+static struct i2c_driver uda1342_i2c_driver = {
+ .driver = {
+ .name = "uda1342",
+ .of_match_table = uda1342_of_match,
+ .pm = pm_sleep_ptr(&uda1342_pm_ops),
+ },
+ .probe = uda1342_i2c_probe,
+ .id_table = uda1342_i2c_id,
+};
+module_i2c_driver(uda1342_i2c_driver);
+
+MODULE_DESCRIPTION("UDA1342 ALSA soc codec driver");
+MODULE_AUTHOR("Zoltan Devai, Christian Pellegrin <chripell@evolware.org>");
+MODULE_AUTHOR("Binbin Zhou <zhoubinbin@loongson.cn>");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Audio support for NXP UDA1342
+ *
+ * Copyright (c) 2005 Giorgio Padrin <giorgio@mandarinlogiq.org>
+ * Copyright (c) 2024 Binbin Zhou <zhoubinbin@loongson.cn>
+ */
+
+#ifndef _UDA1342_H
+#define _UDA1342_H
+
+#define UDA1342_CLK 0x00
+#define UDA1342_IFACE 0x01
+#define UDA1342_PM 0x02
+#define UDA1342_AMIX 0x03
+#define UDA1342_HP 0x04
+#define UDA1342_MVOL 0x11
+#define UDA1342_MIXVOL 0x12
+#define UDA1342_MODE 0x12
+#define UDA1342_DEEMP 0x13
+#define UDA1342_MIXER 0x14
+#define UDA1342_INTSTAT 0x18
+#define UDA1342_DEC 0x20
+#define UDA1342_PGA 0x21
+#define UDA1342_ADC 0x22
+#define UDA1342_AGC 0x23
+#define UDA1342_DECSTAT 0x28
+#define UDA1342_RESET 0x7f
+
+/* Register flags */
+#define R00_EN_ADC 0x0800
+#define R00_EN_DEC 0x0400
+#define R00_EN_DAC 0x0200
+#define R00_EN_INT 0x0100
+#define R00_DAC_CLK 0x0010
+#define R01_SFORI_I2S 0x0000
+#define R01_SFORI_LSB16 0x0100
+#define R01_SFORI_LSB18 0x0200
+#define R01_SFORI_LSB20 0x0300
+#define R01_SFORI_MSB 0x0500
+#define R01_SFORI_MASK 0x0700
+#define R01_SFORO_I2S 0x0000
+#define R01_SFORO_LSB16 0x0001
+#define R01_SFORO_LSB18 0x0002
+#define R01_SFORO_LSB20 0x0003
+#define R01_SFORO_LSB24 0x0004
+#define R01_SFORO_MSB 0x0005
+#define R01_SFORO_MASK 0x0007
+#define R01_SEL_SOURCE 0x0040
+#define R01_SIM 0x0010
+#define R02_PON_PLL 0x8000
+#define R02_PON_HP 0x2000
+#define R02_PON_DAC 0x0400
+#define R02_PON_BIAS 0x0100
+#define R02_EN_AVC 0x0080
+#define R02_PON_AVC 0x0040
+#define R02_PON_LNA 0x0010
+#define R02_PON_PGAL 0x0008
+#define R02_PON_ADCL 0x0004
+#define R02_PON_PGAR 0x0002
+#define R02_PON_ADCR 0x0001
+#define R13_MTM 0x4000
+#define R14_SILENCE 0x0080
+#define R14_SDET_ON 0x0040
+#define R21_MT_ADC 0x8000
+#define R22_SEL_LNA 0x0008
+#define R22_SEL_MIC 0x0004
+#define R22_SKIP_DCFIL 0x0002
+#define R23_AGC_EN 0x0001
+
+#define UDA1342_DAI_DUPLEX 0 /* playback and capture on single DAI */
+#define UDA1342_DAI_PLAYBACK 1 /* playback DAI */
+#define UDA1342_DAI_CAPTURE 2 /* capture DAI */
+
+#define STATUS0_DAIFMT_MASK (~(7 << 1))
+#define STATUS0_SYSCLK_MASK (~(3 << 4))
+
+#endif /* _UDA1342_H */
projects / users / dwmw2 / linux.git / commitdiff