[alsa-devel] [PATCH 2/2] ASoC: zx_aud96p22: add ZTE ZX AUD96P22 codec driver
Shawn Guo
shawnguo at kernel.org
Sat Jun 17 16:09:34 CEST 2017
From: Baoyou Xie <baoyou.xie at linaro.org>
It adds ASoC driver for AUD96P22 stereo audio codec integrated on ZTE
ZX family SoCs. The driver includes the support for a number of volume
and mute controls, and power bits for various playback and recording
components.
Due to that the board for testing only supports playback, recording
support is untested.
Signed-off-by: Baoyou Xie <baoyou.xie at linaro.org>
Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
---
sound/soc/codecs/Kconfig | 5 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/zx_aud96p22.c | 425 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 432 insertions(+)
create mode 100644 sound/soc/codecs/zx_aud96p22.c
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 883ed4c8a551..3425bbcea2d1 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1114,6 +1114,11 @@ config SND_SOC_WM9713
tristate
select REGMAP_AC97
+config SND_SOC_ZX_AUD96P22
+ tristate "ZTE ZX AUD96P22 CODEC"
+ depends on I2C
+ select REGMAP_I2C
+
# Amp
config SND_SOC_LM4857
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 28a63fdaf982..d9858be7796a 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -224,6 +224,7 @@ snd-soc-wm9705-objs := wm9705.o
snd-soc-wm9712-objs := wm9712.o
snd-soc-wm9713-objs := wm9713.o
snd-soc-wm-hubs-objs := wm_hubs.o
+snd-soc-zx-aud96p22-objs := zx_aud96p22.o
# Amp
snd-soc-dio2125-objs := dio2125.o
snd-soc-max9877-objs := max9877.o
@@ -455,6 +456,7 @@ obj-$(CONFIG_SND_SOC_WM9712) += snd-soc-wm9712.o
obj-$(CONFIG_SND_SOC_WM9713) += snd-soc-wm9713.o
obj-$(CONFIG_SND_SOC_WM_ADSP) += snd-soc-wm-adsp.o
obj-$(CONFIG_SND_SOC_WM_HUBS) += snd-soc-wm-hubs.o
+obj-$(CONFIG_SND_SOC_ZX_AUD96P22) += snd-soc-zx-aud96p22.o
# Amp
obj-$(CONFIG_SND_SOC_DIO2125) += snd-soc-dio2125.o
diff --git a/sound/soc/codecs/zx_aud96p22.c b/sound/soc/codecs/zx_aud96p22.c
new file mode 100644
index 000000000000..9b407fcddc37
--- /dev/null
+++ b/sound/soc/codecs/zx_aud96p22.c
@@ -0,0 +1,425 @@
+/*
+ * Copyright (C) 2017 Sanechips Technology Co., Ltd.
+ * Copyright 2017 Linaro Ltd.
+ *
+ * Author: Baoyou Xie <baoyou.xie at linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/tlv.h>
+
+#define AUD96P22_RESET 0x00
+#define AUD96P22_I2S1_CONFIG_0 0x03
+#define I2S1_MS_MODE BIT(3)
+#define I2S1_MODE_MASK 0x7
+#define I2S1_MODE_RIGHT_J 0x0
+#define I2S1_MODE_I2S 0x1
+#define I2S1_MODE_LEFT_J 0x2
+#define AUD96P22_PD_0 0x15
+#define PD_0_PDZ BIT(0)
+#define AUD96P22_PD_1 0x16
+#define AUD96P22_PD_3 0x18
+#define AUD96P22_PD_4 0x19
+#define AUD96P22_MUTE_0 0x1d
+#define AUD96P22_MUTE_2 0x1f
+#define AUD96P22_MUTE_4 0x21
+#define AUD96P22_RECVOL_0 0x24
+#define AUD96P22_RECVOL_1 0x25
+#define AUD96P22_PGA1VOL_0 0x26
+#define AUD96P22_PGA1VOL_1 0x27
+#define AUD96P22_LMVOL_0 0x34
+#define AUD96P22_LMVOL_1 0x35
+#define AUD96P22_HS1VOL_0 0x38
+#define AUD96P22_HS1VOL_1 0x39
+#define AUD96P22_PGA1SEL_0 0x47
+#define AUD96P22_PGA1SEL_1 0x48
+#define AUD96P22_LDR1SEL_0 0x59
+#define AUD96P22_LDR1SEL_1 0x60
+#define AUD96P22_LDR2SEL_0 0x5d
+#define AUD96P22_REG_MAX 0xfb
+
+struct aud96p22_priv {
+ struct regmap *regmap;
+ struct gpio_desc *pa_gpio;
+};
+
+static int lineout_driver_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+ struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ gpiod_set_value_cansleep(priv->pa_gpio, 1);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ gpiod_set_value_cansleep(priv->pa_gpio, 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const DECLARE_TLV_DB_SCALE(lm_tlv, -11550, 50, 0);
+static const DECLARE_TLV_DB_SCALE(hs_tlv, -3900, 300, 0);
+static const DECLARE_TLV_DB_SCALE(rec_tlv, -9550, 50, 0);
+static const DECLARE_TLV_DB_SCALE(pga_tlv, -1800, 100, 0);
+
+static const struct snd_kcontrol_new aud96p22_snd_controls[] = {
+ /* Volume control */
+ SOC_DOUBLE_R_TLV("Playback Master Volume", AUD96P22_LMVOL_0,
+ AUD96P22_LMVOL_1, 0, 0xff, 0, lm_tlv),
+ SOC_DOUBLE_R_TLV("Headset Volume", AUD96P22_HS1VOL_0,
+ AUD96P22_HS1VOL_1, 0, 0xf, 0, hs_tlv),
+ SOC_DOUBLE_R_TLV("Recording Master Volume", AUD96P22_RECVOL_0,
+ AUD96P22_RECVOL_1, 0, 0xff, 0, rec_tlv),
+ SOC_DOUBLE_R_TLV("Recording PGA Volume", AUD96P22_PGA1VOL_0,
+ AUD96P22_PGA1VOL_1, 0, 0x37, 0, pga_tlv),
+
+ /* Mute control */
+ SOC_DOUBLE("Playback Master Mute", AUD96P22_MUTE_2, 0, 1, 1, 0),
+ SOC_DOUBLE("Headset Mute", AUD96P22_MUTE_2, 4, 5, 1, 0),
+ SOC_DOUBLE("Lineout1 Mute", AUD96P22_MUTE_4, 0, 1, 1, 0),
+ SOC_DOUBLE("Lineout2 Mute", AUD96P22_MUTE_4, 2, 3, 1, 0),
+ SOC_DOUBLE("Recording Master Mute", AUD96P22_MUTE_0, 0, 1, 1, 0),
+ SOC_DOUBLE("Recording PGA Mute", AUD96P22_MUTE_0, 2, 3, 1, 0),
+};
+
+/* Input mux kcontrols */
+static const unsigned int ain_mux_values[] = {
+ 0, 1, 3, 4, 5,
+};
+
+static const char * const ainl_mux_texts[] = {
+ "AINL1 differential",
+ "AINL1 single-ended",
+ "AINL3 single-ended",
+ "AINL2 differential",
+ "AINL2 single-ended",
+};
+
+static const char * const ainr_mux_texts[] = {
+ "AINR1 differential",
+ "AINR1 single-ended",
+ "AINR3 single-ended",
+ "AINR2 differential",
+ "AINR2 single-ended",
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(ainl_mux_enum, AUD96P22_PGA1SEL_0,
+ 0, 0x7, ainl_mux_texts, ain_mux_values);
+static SOC_VALUE_ENUM_SINGLE_DECL(ainr_mux_enum, AUD96P22_PGA1SEL_1,
+ 0, 0x7, ainr_mux_texts, ain_mux_values);
+
+static const struct snd_kcontrol_new ainl_mux_kcontrol =
+ SOC_DAPM_ENUM("AIN Left Path", ainl_mux_enum);
+static const struct snd_kcontrol_new ainr_mux_kcontrol =
+ SOC_DAPM_ENUM("AIN Right Path", ainr_mux_enum);
+
+/* Output mixer kcontrols */
+static const struct snd_kcontrol_new ld1_left_kcontrols[] = {
+ SOC_DAPM_SINGLE("LD1L DACL Switch", AUD96P22_LDR1SEL_0, 0, 1, 0),
+ SOC_DAPM_SINGLE("LD1L AINL Switch", AUD96P22_LDR1SEL_0, 1, 1, 0),
+ SOC_DAPM_SINGLE("LD1L AINR Switch", AUD96P22_LDR1SEL_0, 2, 1, 0),
+};
+
+static const struct snd_kcontrol_new ld1_right_kcontrols[] = {
+ SOC_DAPM_SINGLE("LD1R DACR Switch", AUD96P22_LDR1SEL_1, 8, 1, 0),
+ SOC_DAPM_SINGLE("LD1R AINR Switch", AUD96P22_LDR1SEL_1, 9, 1, 0),
+ SOC_DAPM_SINGLE("LD1R AINL Switch", AUD96P22_LDR1SEL_1, 10, 1, 0),
+};
+
+static const struct snd_kcontrol_new ld2_kcontrols[] = {
+ SOC_DAPM_SINGLE("LD2 DACL Switch", AUD96P22_LDR2SEL_0, 0, 1, 0),
+ SOC_DAPM_SINGLE("LD2 AINL Switch", AUD96P22_LDR2SEL_0, 1, 1, 0),
+ SOC_DAPM_SINGLE("LD2 DACR Switch", AUD96P22_LDR2SEL_0, 2, 1, 0),
+};
+
+/* Headset power kcontrols */
+static const struct snd_kcontrol_new hs1l_kcontrol =
+ SOC_DAPM_SINGLE("HS1L Switch", AUD96P22_PD_3, 4, 1, 0);
+static const struct snd_kcontrol_new hs1r_kcontrol =
+ SOC_DAPM_SINGLE("HS1R Switch", AUD96P22_PD_3, 5, 1, 0);
+
+static const struct snd_soc_dapm_widget aud96p22_dapm_widgets[] = {
+ /* Input pins */
+ SND_SOC_DAPM_INPUT("AINL1P"),
+ SND_SOC_DAPM_INPUT("AINL2P"),
+ SND_SOC_DAPM_INPUT("AINL3"),
+ SND_SOC_DAPM_INPUT("AINL1N"),
+ SND_SOC_DAPM_INPUT("AINL2N"),
+ SND_SOC_DAPM_INPUT("AINR2N"),
+ SND_SOC_DAPM_INPUT("AINR1N"),
+ SND_SOC_DAPM_INPUT("AINR3"),
+ SND_SOC_DAPM_INPUT("AINR2P"),
+ SND_SOC_DAPM_INPUT("AINR1P"),
+
+ /* Input muxes */
+ SND_SOC_DAPM_MUX("AINLMUX", AUD96P22_PD_1, 2, 0, &ainl_mux_kcontrol),
+ SND_SOC_DAPM_MUX("AINRMUX", AUD96P22_PD_1, 3, 0, &ainr_mux_kcontrol),
+
+ /* ADCs */
+ SND_SOC_DAPM_ADC("ADCL", "Capture Left", AUD96P22_PD_1, 0, 0),
+ SND_SOC_DAPM_ADC("ADCR", "Capture Right", AUD96P22_PD_1, 1, 0),
+
+ /* DACs */
+ SND_SOC_DAPM_DAC("DACL", "Playback Left", AUD96P22_PD_3, 0, 0),
+ SND_SOC_DAPM_DAC("DACR", "Playback Right", AUD96P22_PD_3, 1, 0),
+
+ /* Output mixers */
+ SND_SOC_DAPM_MIXER("LD1L", AUD96P22_PD_3, 6, 0, ld1_left_kcontrols,
+ ARRAY_SIZE(ld1_left_kcontrols)),
+ SND_SOC_DAPM_MIXER("LD1R", AUD96P22_PD_3, 7, 0, ld1_right_kcontrols,
+ ARRAY_SIZE(ld1_right_kcontrols)),
+ SND_SOC_DAPM_MIXER("LD2", AUD96P22_PD_4, 2, 0, ld2_kcontrols,
+ ARRAY_SIZE(ld2_kcontrols)),
+
+ /* Headset power switch */
+ SND_SOC_DAPM_SWITCH("HS1L", AUD96P22_PD_3, 4, 0, &hs1l_kcontrol),
+ SND_SOC_DAPM_SWITCH("HS1R", AUD96P22_PD_3, 5, 0, &hs1r_kcontrol),
+
+ /* Output pins */
+ SND_SOC_DAPM_OUTPUT("HSOUTL"),
+ SND_SOC_DAPM_OUTPUT("LINEOUTL"),
+ SND_SOC_DAPM_OUTPUT("LINEOUTMP"),
+ SND_SOC_DAPM_OUTPUT("LINEOUTMN"),
+ SND_SOC_DAPM_OUTPUT("LINEOUTR"),
+ SND_SOC_DAPM_OUTPUT("HSOUTR"),
+
+ /* Lineout driver */
+ SND_SOC_DAPM_OUT_DRV_E("LINEOUTDRV", SND_SOC_NOPM, 0, 0, NULL, 0,
+ lineout_driver_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+};
+
+static const struct snd_soc_dapm_route aud96p22_dapm_routes[] = {
+ { "AINLMUX", "AINL1 differential", "AINL1N" },
+ { "AINLMUX", "AINL1 single-ended", "AINL1P" },
+ { "AINLMUX", "AINL3 single-ended", "AINL3" },
+ { "AINLMUX", "AINL2 differential", "AINL2N" },
+ { "AINLMUX", "AINL2 single-ended", "AINL2P" },
+
+ { "AINRMUX", "AINR1 differential", "AINR1N" },
+ { "AINRMUX", "AINR1 single-ended", "AINR1P" },
+ { "AINRMUX", "AINR3 single-ended", "AINR3" },
+ { "AINRMUX", "AINR2 differential", "AINR2N" },
+ { "AINRMUX", "AINR2 single-ended", "AINR2P" },
+
+ { "ADCL", NULL, "AINLMUX" },
+ { "ADCR", NULL, "AINRMUX" },
+
+ { "LD1L", "LD1L DACL Switch", "DACL" },
+ { "LD1L", "LD1L AINL Switch", "AINLMUX" },
+ { "LD1L", "LD1L AINR Switch", "AINRMUX" },
+
+ { "LD1R", "LD1R DACR Switch", "DACR" },
+ { "LD1R", "LD1R AINR Switch", "AINRMUX" },
+ { "LD1R", "LD1R AINL Switch", "AINLMUX" },
+
+ { "LD2", "LD2 DACL Switch", "DACL" },
+ { "LD2", "LD2 AINL Switch", "AINLMUX" },
+ { "LD2", "LD2 DACR Switch", "DACR" },
+
+ { "HS1L", NULL, "LD1L" },
+ { "HS1R", NULL, "LD1R" },
+ { "HSOUTL", NULL, "HS1L" },
+ { "HSOUTR", NULL, "HS1R" },
+
+ { "LINEOUTL", NULL, "LD1L" },
+ { "LINEOUTR", NULL, "LD1R" },
+ { "LINEOUTDRV", NULL, "LINEOUTL" },
+ { "LINEOUTDRV", NULL, "LINEOUTR" },
+
+ { "LINEOUTMP", NULL, "LD2" },
+ { "LINEOUTMN", NULL, "LD2" },
+};
+
+static struct snd_soc_codec_driver aud96p22_driver = {
+ .component_driver = {
+ .controls = aud96p22_snd_controls,
+ .num_controls = ARRAY_SIZE(aud96p22_snd_controls),
+ .dapm_widgets = aud96p22_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(aud96p22_dapm_widgets),
+ .dapm_routes = aud96p22_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(aud96p22_dapm_routes),
+ },
+};
+
+static int aud96p22_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(dai->codec);
+ struct regmap *regmap = priv->regmap;
+ unsigned int val;
+
+ /* Master/slave mode */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ val = 0;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ val = I2S1_MS_MODE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MS_MODE, val);
+
+ /* Audio format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_RIGHT_J:
+ val = I2S1_MODE_RIGHT_J;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ val = I2S1_MODE_I2S;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ val = I2S1_MODE_LEFT_J;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MODE_MASK, val);
+
+ return 0;
+}
+
+static int aud96p22_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(dai->codec);
+ struct regmap *regmap = priv->regmap;
+
+ /* Overall power-up */
+ regmap_update_bits(regmap, AUD96P22_PD_0, PD_0_PDZ, PD_0_PDZ);
+
+ /* Reset ADC and DAC path */
+ regmap_write(regmap, AUD96P22_RESET, 0x0);
+ regmap_write(regmap, AUD96P22_RESET, 0x3);
+
+ return 0;
+}
+
+static void aud96p22_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(dai->codec);
+ struct regmap *regmap = priv->regmap;
+
+ /* Overall power-down */
+ regmap_update_bits(regmap, AUD96P22_PD_0, PD_0_PDZ, 0);
+}
+
+static struct snd_soc_dai_ops aud96p22_dai_ops = {
+ .set_fmt = aud96p22_set_fmt,
+ .startup = aud96p22_startup,
+ .shutdown = aud96p22_shutdown,
+};
+
+#define AUD96P22_RATES SNDRV_PCM_RATE_8000_192000
+#define AUD96P22_FORMATS (\
+ SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \
+ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE)
+
+static struct snd_soc_dai_driver aud96p22_dai = {
+ .name = "aud96p22-dai",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = AUD96P22_RATES,
+ .formats = AUD96P22_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = AUD96P22_RATES,
+ .formats = AUD96P22_FORMATS,
+ },
+ .ops = &aud96p22_dai_ops,
+};
+
+static const struct regmap_config aud96p22_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = AUD96P22_REG_MAX,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int aud96p22_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &i2c->dev;
+ struct aud96p22_priv *priv;
+ int ret;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (priv == NULL)
+ return -ENOMEM;
+
+ priv->regmap = devm_regmap_init_i2c(i2c, &aud96p22_regmap);
+ if (IS_ERR(priv->regmap)) {
+ ret = PTR_ERR(priv->regmap);
+ dev_err(dev, "failed to init i2c regmap: %d\n", ret);
+ return ret;
+ }
+
+ priv->pa_gpio = devm_gpiod_get_optional(dev, "zte,pa", GPIOD_OUT_LOW);
+ if (IS_ERR(priv->pa_gpio)) {
+ ret = PTR_ERR(priv->pa_gpio);
+ dev_err(dev, "failed to get pa gpio: %d\n", ret);
+ return ret;
+ }
+
+ i2c_set_clientdata(i2c, priv);
+
+ ret = snd_soc_register_codec(dev, &aud96p22_driver, &aud96p22_dai, 1);
+ if (ret) {
+ dev_err(dev, "failed to register codec: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int aud96p22_i2c_remove(struct i2c_client *i2c)
+{
+ snd_soc_unregister_codec(&i2c->dev);
+ return 0;
+}
+
+const struct of_device_id aud96p22_dt_ids[] = {
+ { .compatible = "zte,zx-aud96p22", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, aud96p22_dt_ids);
+
+static struct i2c_driver aud96p22_i2c_driver = {
+ .driver = {
+ .name = "zx_aud96p22",
+ .of_match_table = aud96p22_dt_ids,
+ },
+ .probe = aud96p22_i2c_probe,
+ .remove = aud96p22_i2c_remove,
+};
+module_i2c_driver(aud96p22_i2c_driver);
+
+MODULE_DESCRIPTION("ZTE ASoC AUD96P22 CODEC driver");
+MODULE_AUTHOR("Baoyou Xie <baoyou.xie at linaro.org>");
+MODULE_LICENSE("GPL v2");
--
1.9.1
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