[alsa-devel] [PATCH 5/8] ASoC: Add ADAU1381/ADAU1781 CODEC support

Lars-Peter Clausen lars at metafoo.de
Thu Jan 10 17:06:14 CET 2013


This patch adds support for the Analog Devices ADAU1381 and ADAU1781
audio CODECs.

Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
---
 include/linux/platform_data/adau17x1.h |  19 +
 sound/soc/codecs/Kconfig               |   5 +
 sound/soc/codecs/Makefile              |   2 +
 sound/soc/codecs/adau1781.c            | 673 +++++++++++++++++++++++++++++++++
 4 files changed, 699 insertions(+)
 create mode 100644 sound/soc/codecs/adau1781.c

diff --git a/include/linux/platform_data/adau17x1.h b/include/linux/platform_data/adau17x1.h
index 5f559db..b890507 100644
--- a/include/linux/platform_data/adau17x1.h
+++ b/include/linux/platform_data/adau17x1.h
@@ -87,4 +87,23 @@ struct adau1761_platform_data {
 	enum adau17x1_micbias_voltage micbias_voltage;
 };
 
+/**
+ * struct adau1781_platform_data - ADAU1781 Codec driver platform data
+ * @left_input_differential:	If true configure the left input as
+	differential input.
+ * @right_input_differential:	If true configure the right input as
+ *	differntial input.
+ * @use_dmic:			If true configure the MIC pins as digital
+ *	microphone pins instead of analog microphone pins.
+ * @micbias_voltage:		Microphone voltage bias
+ */
+struct adau1781_platform_data {
+	bool left_input_differential;
+	bool right_input_differential;
+
+	bool use_dmic;
+
+	enum adau17x1_micbias_voltage micbias_voltage;
+};
+
 #endif
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index dd11f00..0181e99 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -20,6 +20,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_AD73311
 	select SND_SOC_ADAU1373 if I2C
 	select SND_SOC_ADAU1761 if SND_SOC_I2C_AND_SPI
+	select SND_SOC_ADAU1781 if SND_SOC_I2C_AND_SPI
 	select SND_SOC_ADAV80X
 	select SND_SOC_ADS117X
 	select SND_SOC_AK4104 if SPI_MASTER
@@ -190,6 +191,10 @@ config SND_SOC_ADAU1761
 	select SND_SOC_ADAU17X1
 	tristate
 
+config SND_SOC_ADAU1781
+	select SND_SOC_ADAU17X1
+	tristate
+
 config SND_SOC_ADAV80X
 	tristate
 
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 60e30f8..b0a4c58 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -9,6 +9,7 @@ snd-soc-adau1701-objs := adau1701.o
 snd-soc-adau1373-objs := adau1373.o
 snd-soc-adau17x1-objs := adau17x1.o
 snd-soc-adau1761-objs := adau1761.o
+snd-soc-adau1781-objs := adau1781.o
 snd-soc-adav80x-objs := adav80x.o
 snd-soc-ads117x-objs := ads117x.o
 snd-soc-ak4104-objs := ak4104.o
@@ -133,6 +134,7 @@ obj-$(CONFIG_SND_SOC_ADAU1373)	+= snd-soc-adau1373.o
 obj-$(CONFIG_SND_SOC_ADAU1701)  += snd-soc-adau1701.o
 obj-$(CONFIG_SND_SOC_ADAU17X1)	+= snd-soc-adau17x1.o
 obj-$(CONFIG_SND_SOC_ADAU1761)	+= snd-soc-adau1761.o
+obj-$(CONFIG_SND_SOC_ADAU1781)	+= snd-soc-adau1781.o
 obj-$(CONFIG_SND_SOC_ADAV80X)  += snd-soc-adav80x.o
 obj-$(CONFIG_SND_SOC_ADS117X)	+= snd-soc-ads117x.o
 obj-$(CONFIG_SND_SOC_AK4104)	+= snd-soc-ak4104.o
diff --git a/sound/soc/codecs/adau1781.c b/sound/soc/codecs/adau1781.c
new file mode 100644
index 0000000..411e4e6
--- /dev/null
+++ b/sound/soc/codecs/adau1781.c
@@ -0,0 +1,673 @@
+/*
+ * Driver for ADAU1781/ADAU1781 codec
+ *
+ * Copyright 2011-2013 Analog Devices Inc.
+ * Author: Lars-Peter Clausen <lars at metafoo.de>
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <linux/platform_data/adau17x1.h>
+
+#include "adau17x1.h"
+
+#define ADAU1781_DMIC_BEEP_CTRL		0x4008
+#define ADAU1781_LEFT_PGA		0x400e
+#define ADAU1781_RIGHT_PGA		0x400f
+#define ADAU1781_LEFT_PLAYBACK_MIXER	0x401c
+#define ADAU1781_RIGHT_PLAYBACK_MIXER	0x401e
+#define ADAU1781_MONO_PLAYBACK_MIXER	0x401f
+#define ADAU1781_LEFT_LINEOUT		0x4025
+#define ADAU1781_RIGHT_LINEOUT		0x4026
+#define ADAU1781_SPEAKER		0x4027
+#define ADAU1781_BEEP_ZC		0x4028
+#define ADAU1781_DEJITTER		0x4032
+#define ADAU1781_DIG_PWDN0		0x4080
+#define ADAU1781_DIG_PWDN1		0x4081
+
+#define ADAU1781_INPUT_DIFFERNTIAL BIT(3)
+
+#define ADAU1381_FIRMWARE "adau1381.bin"
+#define ADAU1781_FIRMWARE "adau1781.bin"
+
+static const struct reg_default adau1781_reg_defaults[] = {
+	{ ADAU1781_DMIC_BEEP_CTRL,		0x00 },
+	{ ADAU1781_LEFT_PGA,			0xc7 },
+	{ ADAU1781_RIGHT_PGA,			0xc7 },
+	{ ADAU1781_LEFT_PLAYBACK_MIXER,		0x00 },
+	{ ADAU1781_RIGHT_PLAYBACK_MIXER,	0x00 },
+	{ ADAU1781_MONO_PLAYBACK_MIXER,		0x00 },
+	{ ADAU1781_LEFT_LINEOUT,		0x00 },
+	{ ADAU1781_RIGHT_LINEOUT,		0x00 },
+	{ ADAU1781_SPEAKER,			0x00 },
+	{ ADAU1781_BEEP_ZC,			0x19 },
+	{ ADAU1781_DEJITTER,			0x60 },
+	{ ADAU1781_DIG_PWDN1,			0x0c },
+	{ ADAU1781_DIG_PWDN1,			0x00 },
+	{ ADAU17X1_CLOCK_CONTROL,		0x00 },
+	{ ADAU17X1_PLL_CONTROL,			0x00 },
+	{ ADAU17X1_REC_POWER_MGMT,		0x00 },
+	{ ADAU17X1_MICBIAS,			0x04 },
+	{ ADAU17X1_SERIAL_PORT0,		0x00 },
+	{ ADAU17X1_SERIAL_PORT1,		0x00 },
+	{ ADAU17X1_CONVERTER0,			0x00 },
+	{ ADAU17X1_CONVERTER1,			0x00 },
+	{ ADAU17X1_LEFT_INPUT_DIGITAL_VOL,	0x00 },
+	{ ADAU17X1_RIGHT_INPUT_DIGITAL_VOL,	0x00 },
+	{ ADAU17X1_ADC_CONTROL,			0x00 },
+	{ ADAU17X1_PLAY_POWER_MGMT,		0x00 },
+	{ ADAU17X1_DAC_CONTROL0,		0x00 },
+	{ ADAU17X1_DAC_CONTROL1,		0x00 },
+	{ ADAU17X1_DAC_CONTROL2,		0x00 },
+	{ ADAU17X1_SERIAL_PORT_PAD,		0x00 },
+	{ ADAU17X1_CONTROL_PORT_PAD0,		0x00 },
+	{ ADAU17X1_CONTROL_PORT_PAD1,		0x00 },
+	{ ADAU17X1_DSP_SAMPLING_RATE,		0x01 },
+	{ ADAU17X1_SERIAL_INPUT_ROUTE,		0x00 },
+	{ ADAU17X1_SERIAL_OUTPUT_ROUTE,		0x00 },
+	{ ADAU17X1_DSP_ENABLE,			0x00 },
+	{ ADAU17X1_DSP_RUN,			0x00 },
+	{ ADAU17X1_SERIAL_SAMPLING_RATE,	0x00 },
+};
+
+static const DECLARE_TLV_DB_SCALE(adau1781_speaker_tlv, 0, 200, 0);
+
+static const unsigned int adau1781_pga_tlv[] = {
+	TLV_DB_RANGE_HEAD(4),
+	0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
+	2, 3, TLV_DB_SCALE_ITEM(1000, 400, 0),
+	4, 4, TLV_DB_SCALE_ITEM(1700, 0, 0),
+	5, 7, TLV_DB_SCALE_ITEM(2000, 600, 0),
+};
+
+static const unsigned int adau1781_beep_tlv[] = {
+	TLV_DB_RANGE_HEAD(4),
+	0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
+	2, 3, TLV_DB_SCALE_ITEM(1000, 400, 0),
+	4, 4, TLV_DB_SCALE_ITEM(-2300, 0, 0),
+	5, 7, TLV_DB_SCALE_ITEM(2000, 600, 0),
+};
+
+static const DECLARE_TLV_DB_SCALE(adau1781_sidetone_tlv, -1800, 300, 1);
+
+static const char * const adau1781_speaker_bias_select_text[] = {
+	"Normal operation", "Power saving", "Enhanced performance",
+};
+
+static const char * const adau1781_bias_select_text[] = {
+	"Normal operation", "Extreme power saving", "Power saving",
+	"Enhanced performance",
+};
+
+static const SOC_ENUM_SINGLE_DECL(adau1781_adc_bias_enum,
+		ADAU17X1_REC_POWER_MGMT, 3, adau1781_bias_select_text);
+static const SOC_ENUM_SINGLE_DECL(adau1781_speaker_bias_enum,
+		ADAU17X1_PLAY_POWER_MGMT, 6, adau1781_speaker_bias_select_text);
+static const SOC_ENUM_SINGLE_DECL(adau1781_dac_bias_enum,
+		ADAU17X1_PLAY_POWER_MGMT, 4, adau1781_bias_select_text);
+static const SOC_ENUM_SINGLE_DECL(adau1781_playback_bias_enum,
+		ADAU17X1_PLAY_POWER_MGMT, 2, adau1781_bias_select_text);
+static const SOC_ENUM_SINGLE_DECL(adau1781_capture_bias_enum,
+		ADAU17X1_REC_POWER_MGMT, 1, adau1781_bias_select_text);
+
+static const struct snd_kcontrol_new adau1781_controls[] = {
+	SOC_SINGLE_TLV("Beep Capture Volume", ADAU1781_DMIC_BEEP_CTRL, 0, 7, 0,
+		adau1781_beep_tlv),
+	SOC_DOUBLE_R_TLV("PGA Capture Volume", ADAU1781_LEFT_PGA,
+		ADAU1781_RIGHT_PGA, 5, 7, 0, adau1781_pga_tlv),
+	SOC_DOUBLE_R("PGA Capture Switch", ADAU1781_LEFT_PGA,
+		ADAU1781_RIGHT_PGA, 1, 1, 0),
+
+	SOC_DOUBLE_R("Lineout Playback Switch", ADAU1781_LEFT_LINEOUT,
+		ADAU1781_RIGHT_LINEOUT, 1, 1, 0),
+	SOC_SINGLE("Beep ZC Switch", ADAU1781_BEEP_ZC, 0, 1, 0),
+
+	SOC_SINGLE("Mono Playback Switch", ADAU1781_MONO_PLAYBACK_MIXER,
+		0, 1, 0),
+	SOC_SINGLE_TLV("Mono Playback Volume", ADAU1781_SPEAKER, 6, 3, 0,
+		adau1781_speaker_tlv),
+
+	SOC_ENUM("ADC Bias", adau1781_adc_bias_enum),
+	SOC_ENUM("DAC Bias", adau1781_dac_bias_enum),
+	SOC_ENUM("Capture Bias", adau1781_capture_bias_enum),
+	SOC_ENUM("Playback Bias", adau1781_playback_bias_enum),
+	SOC_ENUM("Speaker Bias", adau1781_speaker_bias_enum),
+};
+
+static const struct snd_kcontrol_new adau1781_beep_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Beep Capture Switch", ADAU1781_DMIC_BEEP_CTRL,
+		3, 1, 0),
+};
+
+static const struct snd_kcontrol_new adau1781_left_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Switch", ADAU1781_LEFT_PLAYBACK_MIXER, 5, 1, 0),
+	SOC_DAPM_SINGLE_TLV("Beep Playback Volume",
+		ADAU1781_LEFT_PLAYBACK_MIXER, 1, 8, 0, adau1781_sidetone_tlv),
+};
+
+static const struct snd_kcontrol_new adau1781_right_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Switch", ADAU1781_RIGHT_PLAYBACK_MIXER, 6, 1, 0),
+	SOC_DAPM_SINGLE_TLV("Beep Playback Volume",
+		ADAU1781_LEFT_PLAYBACK_MIXER, 1, 8, 0, adau1781_sidetone_tlv),
+};
+
+static const struct snd_kcontrol_new adau1781_mono_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Left Switch", ADAU1781_MONO_PLAYBACK_MIXER, 7, 1, 0),
+	SOC_DAPM_SINGLE("Right Switch", ADAU1781_MONO_PLAYBACK_MIXER, 6, 1, 0),
+	SOC_DAPM_SINGLE_TLV("Beep Playback Volume",
+		ADAU1781_MONO_PLAYBACK_MIXER, 2, 8, 0, adau1781_sidetone_tlv),
+};
+
+static int adau1781_dejitter_fixup(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_codec *codec = w->codec;
+	struct adau *adau = snd_soc_codec_get_drvdata(codec);
+
+	/* After any power changes have been made the dejitter circuit
+	 * has to be reinitialized. */
+	regmap_write(adau->regmap, ADAU1781_DEJITTER, 0);
+	if (!adau->master)
+		regmap_write(adau->regmap, ADAU1781_DEJITTER, 5);
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget adau1781_dapm_widgets[] = {
+	SND_SOC_DAPM_PGA("Left PGA", ADAU1781_LEFT_PGA, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Right PGA", ADAU1781_RIGHT_PGA, 0, 0, NULL, 0),
+
+	SND_SOC_DAPM_OUT_DRV("Speaker", ADAU1781_SPEAKER, 0, 0, NULL, 0),
+
+	SOC_MIXER_NAMED_CTL_ARRAY("Beep Mixer", ADAU17X1_MICBIAS, 4, 0,
+		adau1781_beep_mixer_controls),
+
+	SOC_MIXER_ARRAY("Left Lineout Mixer", SND_SOC_NOPM, 0, 0,
+		adau1781_left_mixer_controls),
+	SOC_MIXER_ARRAY("Right Lineout Mixer", SND_SOC_NOPM, 0, 0,
+		adau1781_right_mixer_controls),
+	SOC_MIXER_ARRAY("Mono Mixer", SND_SOC_NOPM, 0, 0,
+		adau1781_mono_mixer_controls),
+
+	SND_SOC_DAPM_SUPPLY("Serial Input Routing", ADAU1781_DIG_PWDN0,
+		2, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("Serial Output Routing", ADAU1781_DIG_PWDN0,
+		3, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("Clock Domain Transfer", ADAU1781_DIG_PWDN0,
+		5, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("Serial Ports", ADAU1781_DIG_PWDN0, 4, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("ADC Engine", ADAU1781_DIG_PWDN0, 7, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("DAC Engine", ADAU1781_DIG_PWDN1, 0, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("Digital Mic", ADAU1781_DIG_PWDN1, 1, 0, NULL, 0),
+
+	SND_SOC_DAPM_SUPPLY("Sound Engine", ADAU1781_DIG_PWDN0, 0, 0, NULL, 0),
+	SND_SOC_DAPM_SUPPLY_S("SYSCLK", 1, ADAU1781_DIG_PWDN0, 1, 0, NULL, 0),
+
+	SND_SOC_DAPM_SUPPLY("Zero Crossing Detector", ADAU1781_DIG_PWDN1, 2, 0,
+		NULL, 0),
+
+	SND_SOC_DAPM_POST("Dejitter fixup", adau1781_dejitter_fixup),
+
+	SND_SOC_DAPM_INPUT("BEEP"),
+
+	SND_SOC_DAPM_OUTPUT("AOUTL"),
+	SND_SOC_DAPM_OUTPUT("AOUTR"),
+	SND_SOC_DAPM_OUTPUT("SP"),
+	SND_SOC_DAPM_INPUT("LMIC"),
+	SND_SOC_DAPM_INPUT("RMIC"),
+};
+
+static const struct snd_soc_dapm_route adau1781_dapm_routes[] = {
+	{ "Left Lineout Mixer", NULL, "Left Playback Enable" },
+	{ "Right Lineout Mixer", NULL, "Right Playback Enable" },
+
+	{ "Left Lineout Mixer", "Beep Playback Volume", "Beep Mixer" },
+	{ "Left Lineout Mixer", "Switch", "Left DAC" },
+
+	{ "Right Lineout Mixer", "Beep Playback Volume", "Beep Mixer" },
+	{ "Right Lineout Mixer", "Switch", "Right DAC" },
+
+	{ "Mono Mixer", "Beep Playback Volume", "Beep Mixer" },
+	{ "Mono Mixer", "Right Switch", "Right DAC" },
+	{ "Mono Mixer", "Left Switch", "Left DAC" },
+	{ "Speaker", NULL, "Mono Mixer" },
+
+	{ "Mono Mixer", NULL, "SYSCLK" },
+	{ "Left Lineout Mixer", NULL, "SYSCLK" },
+	{ "Left Lineout Mixer", NULL, "SYSCLK" },
+
+	{ "Beep Mixer", "Beep Capture Switch", "BEEP" },
+	{ "Beep Mixer", NULL, "Zero Crossing Detector" },
+
+	{ "Left DAC", NULL, "DAC Engine" },
+	{ "Right DAC", NULL, "DAC Engine" },
+
+	{ "Sound Engine", NULL, "SYSCLK" },
+	{ "DSP", NULL, "Sound Engine" },
+
+	{ "AIFCLK", NULL, "SYSCLK" },
+
+	{ "AIFIN", NULL, "Serial Input Routing" },
+	{ "AIFIN", NULL, "Serial Ports" },
+	{ "AIFIN", NULL, "Clock Domain Transfer" },
+	{ "AIFOUT", NULL, "Serial Output Routing" },
+	{ "AIFOUT", NULL, "Serial Ports" },
+	{ "AIFOUT", NULL, "Clock Domain Transfer" },
+
+	{ "AOUTL", NULL, "Left Lineout Mixer" },
+	{ "AOUTR", NULL, "Right Lineout Mixer" },
+	{ "SP", NULL, "Speaker" },
+};
+
+
+DECLARE_ADAU17X1_AIFOUT_MUX(adc, "ADC");
+
+static const struct snd_soc_dapm_route adau1781_adc_dapm_routes[] = {
+	{ "Left PGA", NULL, "LMIC" },
+	{ "Right PGA", NULL, "RMIC" },
+	{ "Left ADC", NULL, "Left PGA" },
+	{ "Right ADC", NULL, "Right PGA" },
+
+	{ "Left ADC", NULL, "ADC Engine" },
+	{ "Right ADC", NULL, "ADC Engine" },
+
+	{ "AIFOUT Capture Mux", "ADC", "Left ADC" },
+	{ "AIFOUT Capture Mux", "ADC", "Right ADC" },
+
+	{ "DSP", NULL, "Left ADC" },
+	{ "DSP", NULL, "Right ADC" },
+};
+
+static const char * const adau1781_dmic_select_text[] = {
+	"DMIC1", "DMIC2",
+};
+
+static const SOC_ENUM_SINGLE_DECL(adau1781_dmic_select_enum, 0, 0,
+	adau1781_dmic_select_text);
+
+static const struct snd_kcontrol_new adau1781_dmic_mux =
+	SOC_DAPM_ENUM_VIRT("DMIC Select", adau1781_dmic_select_enum);
+
+static const char * const adau1781_dmic_aifout_mux_text[] = {
+	"DMIC",
+	"DSP",
+};
+
+static const SOC_ENUM_SINGLE_DECL(adau1781_dmic_aifout_mux_enum,
+	ADAU17X1_SERIAL_OUTPUT_ROUTE, 0, adau1781_dmic_aifout_mux_text);
+
+static const struct snd_kcontrol_new adau1781_dmic_aifout_mux =
+	ADAU17X1_DSP_MUX_ENUM("AIFOUT Capture Mux",
+		adau1781_dmic_aifout_mux_enum);
+
+static const struct snd_soc_dapm_widget adau1781_dmic_dapm_widgets[] = {
+	SND_SOC_DAPM_VIRT_MUX("DMIC Select", SND_SOC_NOPM, 0, 0,
+		&adau1781_dmic_mux),
+
+	SND_SOC_DAPM_VIRT_MUX("AIFOUT Capture Mux", SND_SOC_NOPM, 0, 0,
+		&adau1781_dmic_aifout_mux),
+
+	SND_SOC_DAPM_ADC("DMIC1", NULL, ADAU1781_DMIC_BEEP_CTRL, 4, 0),
+	SND_SOC_DAPM_ADC("DMIC2", NULL, ADAU1781_DMIC_BEEP_CTRL, 5, 0),
+};
+
+static const struct snd_soc_dapm_route adau1781_dmic_dapm_routes[] = {
+	{ "DMIC1", NULL, "LMIC" },
+	{ "DMIC2", NULL, "RMIC" },
+
+	{ "DMIC1", NULL, "Digital Mic" },
+	{ "DMIC2", NULL, "Digital Mic" },
+	{ "DMIC1", NULL, "ADC Engine" },
+	{ "DMIC2", NULL, "ADC Engine" },
+
+	{ "DMIC Select", "DMIC1", "DMIC1" },
+	{ "DMIC Select", "DMIC2", "DMIC2" },
+
+	{ "AIFOUT Capture Mux", "DMIC", "DMIC Select" },
+	{ "DSP", NULL, "DMIC Select" },
+};
+
+static int adau1781_set_bias_level(struct snd_soc_codec *codec,
+		enum snd_soc_bias_level level)
+{
+	struct adau *adau = snd_soc_codec_get_drvdata(codec);
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+	case SND_SOC_BIAS_PREPARE:
+		break;
+	case SND_SOC_BIAS_STANDBY:
+		regmap_update_bits(adau->regmap, ADAU17X1_CLOCK_CONTROL,
+			ADAU17X1_CLOCK_CONTROL_SYSCLK_EN,
+			ADAU17X1_CLOCK_CONTROL_SYSCLK_EN);
+
+		/* Precharge */
+		regmap_update_bits(adau->regmap, ADAU1781_DIG_PWDN1, 0x8, 0x8);
+		break;
+	case SND_SOC_BIAS_OFF:
+		regmap_update_bits(adau->regmap, ADAU1781_DIG_PWDN1, 0xc, 0x0);
+		regmap_update_bits(adau->regmap, ADAU17X1_CLOCK_CONTROL,
+			ADAU17X1_CLOCK_CONTROL_SYSCLK_EN, 0);
+		break;
+	}
+
+	codec->dapm.bias_level = level;
+	return 0;
+}
+
+static bool adau1781_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case ADAU1781_DMIC_BEEP_CTRL:
+	case ADAU1781_LEFT_PGA:
+	case ADAU1781_RIGHT_PGA:
+	case ADAU1781_LEFT_PLAYBACK_MIXER:
+	case ADAU1781_RIGHT_PLAYBACK_MIXER:
+	case ADAU1781_MONO_PLAYBACK_MIXER:
+	case ADAU1781_LEFT_LINEOUT:
+	case ADAU1781_RIGHT_LINEOUT:
+	case ADAU1781_SPEAKER:
+	case ADAU1781_BEEP_ZC:
+	case ADAU1781_DEJITTER:
+	case ADAU1781_DIG_PWDN0:
+	case ADAU1781_DIG_PWDN1:
+		return true;
+	default:
+		break;
+	}
+
+	return adau17x1_readable_register(dev, reg);
+}
+
+static int adau1781_set_input_mode(struct adau *adau, unsigned int reg,
+	bool differential)
+{
+	unsigned int val;
+
+	if (differential)
+		val = ADAU1781_INPUT_DIFFERNTIAL;
+	else
+		val = 0;
+	regmap_update_bits(adau->regmap, reg, ADAU1781_INPUT_DIFFERNTIAL, val);
+
+	return 0;
+}
+
+static int adau1781_probe(struct snd_soc_codec *codec)
+{
+	struct adau1781_platform_data *pdata = dev_get_platdata(codec->dev);
+	struct adau *adau = snd_soc_codec_get_drvdata(codec);
+	const char *firmware;
+	int ret;
+
+	ret = adau17x1_probe(codec);
+	if (ret)
+		return ret;
+
+	if (pdata) {
+		ret = adau1781_set_input_mode(adau, ADAU1781_LEFT_PGA,
+			pdata->left_input_differential);
+		if (ret)
+			return ret;
+		ret = adau1781_set_input_mode(adau, ADAU1781_RIGHT_PGA,
+			pdata->right_input_differential);
+		if (ret)
+			return ret;
+	}
+
+	if (pdata && pdata->use_dmic) {
+		ret = snd_soc_dapm_new_controls(&codec->dapm,
+			adau1781_dmic_dapm_widgets,
+			ARRAY_SIZE(adau1781_dmic_dapm_widgets));
+		if (ret)
+			return ret;
+		ret = snd_soc_dapm_add_routes(&codec->dapm,
+			adau1781_dmic_dapm_routes,
+			ARRAY_SIZE(adau1781_dmic_dapm_routes));
+		if (ret)
+			return ret;
+	} else {
+		ret = snd_soc_dapm_new_controls(&codec->dapm,
+			adau17x1_adc_dsp_widgets,
+			ARRAY_SIZE(adau17x1_adc_dsp_widgets));
+		if (ret)
+			return ret;
+		ret = snd_soc_dapm_add_routes(&codec->dapm,
+			adau1781_adc_dapm_routes,
+			ARRAY_SIZE(adau1781_adc_dapm_routes));
+		if (ret)
+			return ret;
+	}
+
+	switch (adau->type) {
+	case ADAU1381:
+		firmware = ADAU1381_FIRMWARE;
+		break;
+	case ADAU1781:
+		firmware = ADAU1781_FIRMWARE;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = adau17x1_add_routes(codec);
+	if (ret < 0)
+		return ret;
+
+	ret = adau17x1_load_firmware(adau, codec->dev, firmware);
+	if (ret)
+		dev_warn(codec->dev, "Failed to load firmware\n");
+
+	return 0;
+}
+
+static struct snd_soc_codec_driver adau1781_codec_driver = {
+	.probe			= adau1781_probe,
+	.remove			= adau17x1_suspend,
+	.suspend		= adau17x1_suspend,
+	.resume			= adau17x1_resume,
+	.set_bias_level		= adau1781_set_bias_level,
+
+	.controls		= adau1781_controls,
+	.num_controls		= ARRAY_SIZE(adau1781_controls),
+	.dapm_widgets		= adau1781_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(adau1781_dapm_widgets),
+	.dapm_routes		= adau1781_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(adau1781_dapm_routes),
+};
+
+#define ADAU1781_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \
+	SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver adau1781_dai_driver = {
+	.name = "adau-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_8000_96000,
+		.formats = ADAU1781_FORMATS,
+	},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_8000_96000,
+		.formats = ADAU1781_FORMATS,
+	},
+	.ops = &adau17x1_dai_ops,
+};
+
+#if IS_ENABLED(CONFIG_SPI_MASTER)
+
+static const struct regmap_config adau1781_spi_regmap_config = {
+	.val_bits		= 8,
+	.reg_bits		= 24,
+	.read_flag_mask		= 0x01,
+	.max_register		= 0x40f8,
+	.reg_defaults		= adau1781_reg_defaults,
+	.num_reg_defaults	= ARRAY_SIZE(adau1781_reg_defaults),
+	.readable_reg		= adau1781_readable_register,
+	.volatile_reg		= adau17x1_volatile_register,
+	.cache_type		= REGCACHE_RBTREE,
+};
+
+static int adau1781_spi_probe(struct spi_device *spi)
+{
+	struct regmap *regmap;
+	enum adau17x1_type type = spi_get_device_id(spi)->driver_data;
+	int ret;
+
+	regmap = devm_regmap_init_spi(spi, &adau1781_spi_regmap_config);
+
+	ret = adau17x1_bus_probe(&spi->dev, regmap, type, SND_SOC_SPI);
+	if (ret)
+		return ret;
+
+	return snd_soc_register_codec(&spi->dev, &adau1781_codec_driver,
+		&adau1781_dai_driver, 1);
+}
+
+static int adau1781_spi_remove(struct spi_device *spi)
+{
+	snd_soc_unregister_codec(&spi->dev);
+	return 0;
+}
+
+static const struct spi_device_id adau1781_spi_id[] = {
+	{ "adau1381", ADAU1381 },
+	{ "adau1781", ADAU1781 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, adau1781_spi_id);
+
+static struct spi_driver adau1781_spi_driver = {
+	.driver = {
+		.name	= "adau1781",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= adau1781_spi_probe,
+	.remove		= adau1781_spi_remove,
+	.id_table	= adau1781_spi_id,
+};
+
+static int __init adau1781_spi_register_driver(void)
+{
+	return spi_register_driver(&adau1781_spi_driver);
+}
+
+static void adau1781_spi_unregister_driver(void)
+{
+	spi_unregister_driver(&adau1781_spi_driver);
+}
+
+#else
+static int adau1781_spi_register_driver(void) { return 0; }
+static void adau1781_spi_unregister_driver(void) {}
+#endif
+
+#if IS_ENABLED(CONFIG_I2C)
+
+static const struct regmap_config adau1781_i2c_regmap_config = {
+	.val_bits		= 8,
+	.reg_bits		= 16,
+	.max_register		= 0x40f8,
+	.reg_defaults		= adau1781_reg_defaults,
+	.num_reg_defaults	= ARRAY_SIZE(adau1781_reg_defaults),
+	.readable_reg		= adau1781_readable_register,
+	.volatile_reg		= adau17x1_volatile_register,
+	.cache_type		= REGCACHE_RBTREE,
+};
+
+static int adau1781_i2c_probe(struct i2c_client *client,
+	const struct i2c_device_id *id)
+{
+	struct regmap *regmap;
+	enum adau17x1_type type = id->driver_data;
+	int ret;
+
+	regmap = devm_regmap_init_i2c(client, &adau1781_i2c_regmap_config);
+
+	ret = adau17x1_bus_probe(&client->dev, regmap, type, SND_SOC_I2C);
+	if (ret)
+		return ret;
+
+	return snd_soc_register_codec(&client->dev, &adau1781_codec_driver,
+		&adau1781_dai_driver, 1);
+}
+
+static int adau1781_i2c_remove(struct i2c_client *client)
+{
+	snd_soc_unregister_codec(&client->dev);
+	return 0;
+}
+
+static const struct i2c_device_id adau1781_i2c_id[] = {
+	{ "adau1381", ADAU1381 },
+	{ "adau1781", ADAU1781 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adau1781_i2c_id);
+
+static struct i2c_driver adau1781_i2c_driver = {
+	.driver = {
+		.name = "adau1781",
+		.owner = THIS_MODULE,
+	},
+	.probe = adau1781_i2c_probe,
+	.remove = adau1781_i2c_remove,
+	.id_table = adau1781_i2c_id,
+};
+
+static int __init adau1781_i2c_register_driver(void)
+{
+	return i2c_add_driver(&adau1781_i2c_driver);
+}
+
+static void __exit adau1781_i2c_unregister_driver(void)
+{
+	i2c_del_driver(&adau1781_i2c_driver);
+}
+
+#else
+static int adau1781_i2c_register_driver(void) { return 0; }
+static void adau1781_i2c_unregister_driver(void) {}
+#endif
+
+static int __init adau1781_init(void)
+{
+	int ret = 0;
+
+	ret = adau1781_spi_register_driver();
+	if (ret)
+		return ret;
+
+	ret = adau1781_i2c_register_driver();
+	if (ret)
+		adau1781_spi_unregister_driver();
+
+	return ret;
+}
+module_init(adau1781_init);
+
+static void __exit adau1781_exit(void)
+{
+	adau1781_i2c_unregister_driver();
+	adau1781_spi_unregister_driver();
+}
+module_exit(adau1781_exit);
+
+MODULE_DESCRIPTION("ASoC ADAU1381/ADAU1781 driver");
+MODULE_AUTHOR("Lars-Peter Clausen <lars at metafoo.de>");
+MODULE_LICENSE("GPL");
-- 
1.8.0



More information about the Alsa-devel mailing list