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-rw-r--r--sound/soc/codecs/jz4740.c356
1 files changed, 356 insertions, 0 deletions
diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c
new file mode 100644
index 0000000000..d1cea93bdb
--- /dev/null
+++ b/sound/soc/codecs/jz4740.c
@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// JZ4740 CODEC driver
+//
+// Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/regmap.h>
+
+#include <linux/delay.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#define JZ4740_REG_CODEC_1 0x0
+#define JZ4740_REG_CODEC_2 0x4
+
+#define JZ4740_CODEC_1_LINE_ENABLE BIT(29)
+#define JZ4740_CODEC_1_MIC_ENABLE BIT(28)
+#define JZ4740_CODEC_1_SW1_ENABLE BIT(27)
+#define JZ4740_CODEC_1_ADC_ENABLE BIT(26)
+#define JZ4740_CODEC_1_SW2_ENABLE BIT(25)
+#define JZ4740_CODEC_1_DAC_ENABLE BIT(24)
+#define JZ4740_CODEC_1_VREF_DISABLE BIT(20)
+#define JZ4740_CODEC_1_VREF_AMP_DISABLE BIT(19)
+#define JZ4740_CODEC_1_VREF_PULLDOWN BIT(18)
+#define JZ4740_CODEC_1_VREF_LOW_CURRENT BIT(17)
+#define JZ4740_CODEC_1_VREF_HIGH_CURRENT BIT(16)
+#define JZ4740_CODEC_1_HEADPHONE_DISABLE BIT(14)
+#define JZ4740_CODEC_1_HEADPHONE_AMP_CHANGE_ANY BIT(13)
+#define JZ4740_CODEC_1_HEADPHONE_CHARGE BIT(12)
+#define JZ4740_CODEC_1_HEADPHONE_PULLDOWN (BIT(11) | BIT(10))
+#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M BIT(9)
+#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN BIT(8)
+#define JZ4740_CODEC_1_SUSPEND BIT(1)
+#define JZ4740_CODEC_1_RESET BIT(0)
+
+#define JZ4740_CODEC_1_LINE_ENABLE_OFFSET 29
+#define JZ4740_CODEC_1_MIC_ENABLE_OFFSET 28
+#define JZ4740_CODEC_1_SW1_ENABLE_OFFSET 27
+#define JZ4740_CODEC_1_ADC_ENABLE_OFFSET 26
+#define JZ4740_CODEC_1_SW2_ENABLE_OFFSET 25
+#define JZ4740_CODEC_1_DAC_ENABLE_OFFSET 24
+#define JZ4740_CODEC_1_HEADPHONE_DISABLE_OFFSET 14
+#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN_OFFSET 8
+
+#define JZ4740_CODEC_2_INPUT_VOLUME_MASK 0x1f0000
+#define JZ4740_CODEC_2_SAMPLE_RATE_MASK 0x000f00
+#define JZ4740_CODEC_2_MIC_BOOST_GAIN_MASK 0x000030
+#define JZ4740_CODEC_2_HEADPHONE_VOLUME_MASK 0x000003
+
+#define JZ4740_CODEC_2_INPUT_VOLUME_OFFSET 16
+#define JZ4740_CODEC_2_SAMPLE_RATE_OFFSET 8
+#define JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET 4
+#define JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET 0
+
+static const struct reg_default jz4740_codec_reg_defaults[] = {
+ { JZ4740_REG_CODEC_1, 0x021b2302 },
+ { JZ4740_REG_CODEC_2, 0x00170803 },
+};
+
+struct jz4740_codec {
+ struct regmap *regmap;
+};
+
+static const DECLARE_TLV_DB_RANGE(jz4740_mic_tlv,
+ 0, 2, TLV_DB_SCALE_ITEM(0, 600, 0),
+ 3, 3, TLV_DB_SCALE_ITEM(2000, 0, 0)
+);
+
+static const DECLARE_TLV_DB_SCALE(jz4740_out_tlv, 0, 200, 0);
+static const DECLARE_TLV_DB_SCALE(jz4740_in_tlv, -3450, 150, 0);
+
+static const struct snd_kcontrol_new jz4740_codec_controls[] = {
+ SOC_SINGLE_TLV("Master Playback Volume", JZ4740_REG_CODEC_2,
+ JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0,
+ jz4740_out_tlv),
+ SOC_SINGLE_TLV("Master Capture Volume", JZ4740_REG_CODEC_2,
+ JZ4740_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0,
+ jz4740_in_tlv),
+ SOC_SINGLE("Master Playback Switch", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_HEADPHONE_DISABLE_OFFSET, 1, 1),
+ SOC_SINGLE_TLV("Mic Capture Volume", JZ4740_REG_CODEC_2,
+ JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0,
+ jz4740_mic_tlv),
+};
+
+static const struct snd_kcontrol_new jz4740_codec_output_controls[] = {
+ SOC_DAPM_SINGLE("Bypass Switch", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_SW1_ENABLE_OFFSET, 1, 0),
+ SOC_DAPM_SINGLE("DAC Switch", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_SW2_ENABLE_OFFSET, 1, 0),
+};
+
+static const struct snd_kcontrol_new jz4740_codec_input_controls[] = {
+ SOC_DAPM_SINGLE("Line Capture Switch", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_LINE_ENABLE_OFFSET, 1, 0),
+ SOC_DAPM_SINGLE("Mic Capture Switch", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_MIC_ENABLE_OFFSET, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget jz4740_codec_dapm_widgets[] = {
+ SND_SOC_DAPM_ADC("ADC", "Capture", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_ADC_ENABLE_OFFSET, 0),
+ SND_SOC_DAPM_DAC("DAC", "Playback", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_DAC_ENABLE_OFFSET, 0),
+
+ SND_SOC_DAPM_MIXER("Output Mixer", JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_HEADPHONE_POWERDOWN_OFFSET, 1,
+ jz4740_codec_output_controls,
+ ARRAY_SIZE(jz4740_codec_output_controls)),
+
+ SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
+ jz4740_codec_input_controls,
+ ARRAY_SIZE(jz4740_codec_input_controls)),
+ SND_SOC_DAPM_MIXER("Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_OUTPUT("LOUT"),
+ SND_SOC_DAPM_OUTPUT("ROUT"),
+
+ SND_SOC_DAPM_INPUT("MIC"),
+ SND_SOC_DAPM_INPUT("LIN"),
+ SND_SOC_DAPM_INPUT("RIN"),
+};
+
+static const struct snd_soc_dapm_route jz4740_codec_dapm_routes[] = {
+ {"Line Input", NULL, "LIN"},
+ {"Line Input", NULL, "RIN"},
+
+ {"Input Mixer", "Line Capture Switch", "Line Input"},
+ {"Input Mixer", "Mic Capture Switch", "MIC"},
+
+ {"ADC", NULL, "Input Mixer"},
+
+ {"Output Mixer", "Bypass Switch", "Input Mixer"},
+ {"Output Mixer", "DAC Switch", "DAC"},
+
+ {"LOUT", NULL, "Output Mixer"},
+ {"ROUT", NULL, "Output Mixer"},
+};
+
+static int jz4740_codec_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ struct jz4740_codec *jz4740_codec = snd_soc_component_get_drvdata(dai->component);
+ uint32_t val;
+
+ switch (params_rate(params)) {
+ case 8000:
+ val = 0;
+ break;
+ case 11025:
+ val = 1;
+ break;
+ case 12000:
+ val = 2;
+ break;
+ case 16000:
+ val = 3;
+ break;
+ case 22050:
+ val = 4;
+ break;
+ case 24000:
+ val = 5;
+ break;
+ case 32000:
+ val = 6;
+ break;
+ case 44100:
+ val = 7;
+ break;
+ case 48000:
+ val = 8;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ val <<= JZ4740_CODEC_2_SAMPLE_RATE_OFFSET;
+
+ regmap_update_bits(jz4740_codec->regmap, JZ4740_REG_CODEC_2,
+ JZ4740_CODEC_2_SAMPLE_RATE_MASK, val);
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops jz4740_codec_dai_ops = {
+ .hw_params = jz4740_codec_hw_params,
+};
+
+static struct snd_soc_dai_driver jz4740_codec_dai = {
+ .name = "jz4740-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
+ },
+ .ops = &jz4740_codec_dai_ops,
+ .symmetric_rate = 1,
+};
+
+static void jz4740_codec_wakeup(struct regmap *regmap)
+{
+ regmap_set_bits(regmap, JZ4740_REG_CODEC_1, JZ4740_CODEC_1_RESET);
+ udelay(2);
+
+ regmap_clear_bits(regmap, JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_SUSPEND | JZ4740_CODEC_1_RESET);
+
+ regcache_sync(regmap);
+}
+
+static int jz4740_codec_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ struct jz4740_codec *jz4740_codec = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = jz4740_codec->regmap;
+ unsigned int mask;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ mask = JZ4740_CODEC_1_VREF_DISABLE |
+ JZ4740_CODEC_1_VREF_AMP_DISABLE |
+ JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
+
+ regmap_clear_bits(regmap, JZ4740_REG_CODEC_1, mask);
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ /* The only way to clear the suspend flag is to reset the codec */
+ if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
+ jz4740_codec_wakeup(regmap);
+
+ mask = JZ4740_CODEC_1_VREF_DISABLE |
+ JZ4740_CODEC_1_VREF_AMP_DISABLE |
+ JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
+
+ regmap_set_bits(regmap, JZ4740_REG_CODEC_1, mask);
+ break;
+ case SND_SOC_BIAS_OFF:
+ mask = JZ4740_CODEC_1_SUSPEND;
+ regmap_set_bits(regmap, JZ4740_REG_CODEC_1, mask);
+ regcache_mark_dirty(regmap);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int jz4740_codec_dev_probe(struct snd_soc_component *component)
+{
+ struct jz4740_codec *jz4740_codec = snd_soc_component_get_drvdata(component);
+
+ regmap_update_bits(jz4740_codec->regmap, JZ4740_REG_CODEC_1,
+ JZ4740_CODEC_1_SW2_ENABLE, JZ4740_CODEC_1_SW2_ENABLE);
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver soc_codec_dev_jz4740_codec = {
+ .probe = jz4740_codec_dev_probe,
+ .set_bias_level = jz4740_codec_set_bias_level,
+ .controls = jz4740_codec_controls,
+ .num_controls = ARRAY_SIZE(jz4740_codec_controls),
+ .dapm_widgets = jz4740_codec_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(jz4740_codec_dapm_widgets),
+ .dapm_routes = jz4740_codec_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(jz4740_codec_dapm_routes),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static const struct regmap_config jz4740_codec_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = JZ4740_REG_CODEC_2,
+
+ .reg_defaults = jz4740_codec_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(jz4740_codec_reg_defaults),
+ .cache_type = REGCACHE_MAPLE,
+};
+
+static int jz4740_codec_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct jz4740_codec *jz4740_codec;
+ void __iomem *base;
+
+ jz4740_codec = devm_kzalloc(&pdev->dev, sizeof(*jz4740_codec),
+ GFP_KERNEL);
+ if (!jz4740_codec)
+ return -ENOMEM;
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ jz4740_codec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
+ &jz4740_codec_regmap_config);
+ if (IS_ERR(jz4740_codec->regmap))
+ return PTR_ERR(jz4740_codec->regmap);
+
+ platform_set_drvdata(pdev, jz4740_codec);
+
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &soc_codec_dev_jz4740_codec, &jz4740_codec_dai, 1);
+ if (ret)
+ dev_err(&pdev->dev, "Failed to register codec\n");
+
+ return ret;
+}
+
+static const struct of_device_id jz4740_codec_of_matches[] = {
+ { .compatible = "ingenic,jz4740-codec", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, jz4740_codec_of_matches);
+
+static struct platform_driver jz4740_codec_driver = {
+ .probe = jz4740_codec_probe,
+ .driver = {
+ .name = "jz4740-codec",
+ .of_match_table = jz4740_codec_of_matches,
+ },
+};
+
+module_platform_driver(jz4740_codec_driver);
+
+MODULE_DESCRIPTION("JZ4740 SoC internal codec driver");
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:jz4740-codec");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 11:41:12 +0000