[ALSA] ASoC TLV320AIC3X codec driver

This patch adds ALSA SoC support for TI TLV320AIC3X audio codecs.
The features that are supported:
     o Capture/Playback/Bypass.
     o 16/20/24/32 bit audio.
     o 8k - 96k sample rates.
     o codec master only mode
     o DAPM.
Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/soc/codecs/Kconfig

@@ -37,3 +37,6 @@ config SND_SOC_CS4270_VD33_ERRATA
 	bool
 	depends on SND_SOC_CS4270
 
+config SND_SOC_TLV320AIC3X
+	tristate
+	depends on SND_SOC && I2C

sound/soc/codecs/Makefile

@@ -4,6 +4,7 @@ snd-soc-wm8750-objs := wm8750.o
 snd-soc-wm8753-objs := wm8753.o
 snd-soc-wm9712-objs := wm9712.o
 snd-soc-cs4270-objs := cs4270.o
+snd-soc-tlv320aic3x-objs := tlv320aic3x.o
 
 obj-$(CONFIG_SND_SOC_AC97_CODEC)	+= snd-soc-ac97.o
 obj-$(CONFIG_SND_SOC_WM8731)	+= snd-soc-wm8731.o
@@ -11,3 +12,4 @@ obj-$(CONFIG_SND_SOC_WM8750)	+= snd-soc-wm8750.o
 obj-$(CONFIG_SND_SOC_WM8753)	+= snd-soc-wm8753.o
 obj-$(CONFIG_SND_SOC_WM9712)	+= snd-soc-wm9712.o
 obj-$(CONFIG_SND_SOC_CS4270)	+= snd-soc-cs4270.o
+obj-$(CONFIG_SND_SOC_TLV320AIC3X)	+= snd-soc-tlv320aic3x.o

sound/soc/codecs/tlv320aic3x.c

+/*
+ * ALSA SoC TLV320AIC3X codec driver
+ *
+ * Author:      Vladimir Barinov, <vbarinov@ru.mvista.com>
+ * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.com>
+ *
+ * Based on sound/soc/codecs/wm8753.c by Liam Girdwood
+ *
+ * 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.
+ *
+ * Notes:
+ *  The AIC3X is a driver for a low power stereo audio
+ *  codecs aic31, aic32, aic33.
+ *
+ *  It supports full aic33 codec functionality.
+ *  The compatibility with aic32, aic31 is as follows:
+ *        aic32        |        aic31
+ *  ---------------------------------------
+ *   MONO_LOUT -> N/A  |  MONO_LOUT -> N/A
+ *                     |  IN1L -> LINE1L
+ *                     |  IN1R -> LINE1R
+ *                     |  IN2L -> LINE2L
+ *                     |  IN2R -> LINE2R
+ *                     |  MIC3L/R -> N/A
+ *   truncated internal functionality in
+ *   accordance with documentation
+ *  ---------------------------------------
+ *
+ *  Hence the machine layer should disable unsupported inputs/outputs by
+ *  snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0), etc.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <sound/driver.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+
+#include "tlv320aic3x.h"
+
+#define AUDIO_NAME "aic3x"
+#define AIC3X_VERSION "0.1"
+
+/* codec private data */
+struct aic3x_priv {
+	unsigned int sysclk;
+	int master;
+};
+
+/*
+ * AIC3X register cache
+ * We can't read the AIC3X register space when we are
+ * using 2 wire for device control, so we cache them instead.
+ * There is no point in caching the reset register
+ */
+static const u8 aic3x_reg[AIC3X_CACHEREGNUM] = {
+	0x00, 0x00, 0x00, 0x10,	/* 0 */
+	0x04, 0x00, 0x00, 0x00,	/* 4 */
+	0x00, 0x00, 0x00, 0x01,	/* 8 */
+	0x00, 0x00, 0x00, 0x80,	/* 12 */
+	0x80, 0xff, 0xff, 0x78,	/* 16 */
+	0x78, 0x78, 0x78, 0x78,	/* 20 */
+	0x78, 0x00, 0x00, 0xfe,	/* 24 */
+	0x00, 0x00, 0xfe, 0x00,	/* 28 */
+	0x18, 0x18, 0x00, 0x00,	/* 32 */
+	0x00, 0x00, 0x00, 0x00,	/* 36 */
+	0x00, 0x00, 0x00, 0x80,	/* 40 */
+	0x80, 0x00, 0x00, 0x00,	/* 44 */
+	0x00, 0x00, 0x00, 0x04,	/* 48 */
+	0x00, 0x00, 0x00, 0x00,	/* 52 */
+	0x00, 0x00, 0x04, 0x00,	/* 56 */
+	0x00, 0x00, 0x00, 0x00,	/* 60 */
+	0x00, 0x04, 0x00, 0x00,	/* 64 */
+	0x00, 0x00, 0x00, 0x00,	/* 68 */
+	0x04, 0x00, 0x00, 0x00,	/* 72 */
+	0x00, 0x00, 0x00, 0x00,	/* 76 */
+	0x00, 0x00, 0x00, 0x00,	/* 80 */
+	0x00, 0x00, 0x00, 0x00,	/* 84 */
+	0x00, 0x00, 0x00, 0x00,	/* 88 */
+	0x00, 0x00, 0x00, 0x00,	/* 92 */
+	0x00, 0x00, 0x00, 0x00,	/* 96 */
+	0x00, 0x00, 0x02,	/* 100 */
+};
+
+/*
+ * read aic3x register cache
+ */
+static inline unsigned int aic3x_read_reg_cache(struct snd_soc_codec *codec,
+						unsigned int reg)
+{
+	u8 *cache = codec->reg_cache;
+	if (reg >= AIC3X_CACHEREGNUM)
+		return -1;
+	return cache[reg];
+}
+
+/*
+ * write aic3x register cache
+ */
+static inline void aic3x_write_reg_cache(struct snd_soc_codec *codec,
+					 u8 reg, u8 value)
+{
+	u8 *cache = codec->reg_cache;
+	if (reg >= AIC3X_CACHEREGNUM)
+		return;
+	cache[reg] = value;
+}
+
+/*
+ * write to the aic3x register space
+ */
+static int aic3x_write(struct snd_soc_codec *codec, unsigned int reg,
+		       unsigned int value)
+{
+	u8 data[2];
+
+	/* data is
+	 *   D15..D8 aic3x register offset
+	 *   D7...D0 register data
+	 */
+	data[0] = reg & 0xff;
+	data[1] = value & 0xff;
+
+	aic3x_write_reg_cache(codec, data[0], data[1]);
+	if (codec->hw_write(codec->control_data, data, 2) == 2)
+		return 0;
+	else
+		return -EIO;
+}
+
+#define SOC_DAPM_SINGLE_AIC3X(xname, reg, shift, mask, invert) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.info = snd_soc_info_volsw, \
+	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw_aic3x, \
+	.private_value =  SOC_SINGLE_VALUE(reg, shift, mask, invert) }
+
+/*
+ * All input lines are connected when !0xf and disconnected with 0xf bit field,
+ * so we have to use specific dapm_put call for input mixer
+ */
+static int snd_soc_dapm_put_volsw_aic3x(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0x0f;
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int invert = (kcontrol->private_value >> 24) & 0x01;
+	unsigned short val, val_mask;
+	int ret;
+	struct snd_soc_dapm_path *path;
+	int found = 0;
+
+	val = (ucontrol->value.integer.value[0] & mask);
+
+	mask = 0xf;
+	if (val)
+		val = mask;
+
+	if (invert)
+		val = mask - val;
+	val_mask = mask << shift;
+	val = val << shift;
+
+	mutex_lock(&widget->codec->mutex);
+
+	if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) {
+		/* find dapm widget path assoc with kcontrol */
+		list_for_each_entry(path, &widget->codec->dapm_paths, list) {
+			if (path->kcontrol != kcontrol)
+				continue;
+
+			/* found, now check type */
+			found = 1;
+			if (val)
+				/* new connection */
+				path->connect = invert ? 0 : 1;
+			else
+				/* old connection must be powered down */
+				path->connect = invert ? 1 : 0;
+			break;
+		}
+
+		if (found)
+			snd_soc_dapm_sync_endpoints(widget->codec);
+	}
+
+	ret = snd_soc_update_bits(widget->codec, reg, val_mask, val);
+
+	mutex_unlock(&widget->codec->mutex);
+	return ret;
+}
+
+static const char *aic3x_left_dac_mux[] = { "DAC_L1", "DAC_L3", "DAC_L2" };
+static const char *aic3x_right_dac_mux[] = { "DAC_R1", "DAC_R3", "DAC_R2" };
+static const char *aic3x_left_hpcom_mux[] =
+    { "differential of HPLOUT", "constant VCM", "single-ended" };
+static const char *aic3x_right_hpcom_mux[] =
+    { "differential of HPROUT", "constant VCM", "single-ended",
+      "differential of HPLCOM", "external feedback" };
+static const char *aic3x_linein_mode_mux[] = { "single-ended", "differential" };
+
+#define LDAC_ENUM	0
+#define RDAC_ENUM	1
+#define LHPCOM_ENUM	2
+#define RHPCOM_ENUM	3
+#define LINE1L_ENUM	4
+#define LINE1R_ENUM	5
+#define LINE2L_ENUM	6
+#define LINE2R_ENUM	7
+
+static const struct soc_enum aic3x_enum[] = {
+	SOC_ENUM_SINGLE(DAC_LINE_MUX, 6, 3, aic3x_left_dac_mux),
+	SOC_ENUM_SINGLE(DAC_LINE_MUX, 4, 3, aic3x_right_dac_mux),
+	SOC_ENUM_SINGLE(HPLCOM_CFG, 4, 3, aic3x_left_hpcom_mux),
+	SOC_ENUM_SINGLE(HPRCOM_CFG, 3, 5, aic3x_right_hpcom_mux),
+	SOC_ENUM_SINGLE(LINE1L_2_LADC_CTRL, 7, 2, aic3x_linein_mode_mux),
+	SOC_ENUM_SINGLE(LINE1R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux),
+	SOC_ENUM_SINGLE(LINE2L_2_LADC_CTRL, 7, 2, aic3x_linein_mode_mux),
+	SOC_ENUM_SINGLE(LINE2R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux),
+};
+
+static const struct snd_kcontrol_new aic3x_snd_controls[] = {
+	/* Output */
+	SOC_DOUBLE_R("PCM Playback Volume", LDAC_VOL, RDAC_VOL, 0, 0x7f, 1),
+
+	SOC_DOUBLE_R("Line DAC Playback Volume", DACL1_2_LLOPM_VOL,
+		     DACR1_2_RLOPM_VOL, 0, 0x7f, 1),
+	SOC_DOUBLE_R("Line DAC Playback Switch", LLOPM_CTRL, RLOPM_CTRL, 3,
+		     0x01, 0),
+	SOC_DOUBLE_R("Line PGA Bypass Playback Volume", PGAL_2_LLOPM_VOL,
+		     PGAR_2_RLOPM_VOL, 0, 0x7f, 1),
+	SOC_DOUBLE_R("Line Line2 Bypass Playback Volume", LINE2L_2_LLOPM_VOL,
+		     LINE2R_2_RLOPM_VOL, 0, 0x7f, 1),
+
+	SOC_DOUBLE_R("Mono DAC Playback Volume", DACL1_2_MONOLOPM_VOL,
+		     DACR1_2_MONOLOPM_VOL, 0, 0x7f, 1),
+	SOC_SINGLE("Mono DAC Playback Switch", MONOLOPM_CTRL, 3, 0x01, 0),
+	SOC_DOUBLE_R("Mono PGA Bypass Playback Volume", PGAL_2_MONOLOPM_VOL,
+		     PGAR_2_MONOLOPM_VOL, 0, 0x7f, 1),
+	SOC_DOUBLE_R("Mono Line2 Bypass Playback Volume", LINE2L_2_MONOLOPM_VOL,
+		     LINE2R_2_MONOLOPM_VOL, 0, 0x7f, 1),
+
+	SOC_DOUBLE_R("HP DAC Playback Volume", DACL1_2_HPLOUT_VOL,
+		     DACR1_2_HPROUT_VOL, 0, 0x7f, 1),
+	SOC_DOUBLE_R("HP DAC Playback Switch", HPLOUT_CTRL, HPROUT_CTRL, 3,
+		     0x01, 0),
+	SOC_DOUBLE_R("HP PGA Bypass Playback Volume", PGAL_2_HPLOUT_VOL,
+		     PGAR_2_HPROUT_VOL, 0, 0x7f, 1),
+	SOC_DOUBLE_R("HP Line2 Bypass Playback Volume", LINE2L_2_HPLOUT_VOL,
+		     LINE2R_2_HPROUT_VOL, 0, 0x7f, 1),
+
+	SOC_DOUBLE_R("HPCOM DAC Playback Volume", DACL1_2_HPLCOM_VOL,
+		     DACR1_2_HPRCOM_VOL, 0, 0x7f, 1),
+	SOC_DOUBLE_R("HPCOM DAC Playback Switch", HPLCOM_CTRL, HPRCOM_CTRL, 3,
+		     0x01, 0),
+	SOC_DOUBLE_R("HPCOM PGA Bypass Playback Volume", PGAL_2_HPLCOM_VOL,
+		     PGAR_2_HPRCOM_VOL, 0, 0x7f, 1),
+	SOC_DOUBLE_R("HPCOM Line2 Bypass Playback Volume", LINE2L_2_HPLCOM_VOL,
+		     LINE2R_2_HPRCOM_VOL, 0, 0x7f, 1),
+
+	/*
+	 * Note: enable Automatic input Gain Controller with care. It can
+	 * adjust PGA to max value when ADC is on and will never go back.
+	*/
+	SOC_DOUBLE_R("AGC Switch", LAGC_CTRL_A, RAGC_CTRL_A, 7, 0x01, 0),
+
+	/* Input */
+	SOC_DOUBLE_R("PGA Capture Volume", LADC_VOL, RADC_VOL, 0, 0x7f, 0),
+	SOC_DOUBLE_R("PGA Capture Switch", LADC_VOL, RADC_VOL, 7, 0x01, 1),
+};
+
+/* add non dapm controls */
+static int aic3x_add_controls(struct snd_soc_codec *codec)
+{
+	int err, i;
+
+	for (i = 0; i < ARRAY_SIZE(aic3x_snd_controls); i++) {
+		err = snd_ctl_add(codec->card,
+				  snd_soc_cnew(&aic3x_snd_controls[i],
+					       codec, NULL));
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+/* Left DAC Mux */
+static const struct snd_kcontrol_new aic3x_left_dac_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[LDAC_ENUM]);
+
+/* Right DAC Mux */
+static const struct snd_kcontrol_new aic3x_right_dac_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[RDAC_ENUM]);
+
+/* Left HPCOM Mux */
+static const struct snd_kcontrol_new aic3x_left_hpcom_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[LHPCOM_ENUM]);
+
+/* Right HPCOM Mux */
+static const struct snd_kcontrol_new aic3x_right_hpcom_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[RHPCOM_ENUM]);
+
+/* Left DAC_L1 Mixer */
+static const struct snd_kcontrol_new aic3x_left_dac_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Line Switch", DACL1_2_LLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("Mono Switch", DACL1_2_MONOLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HP Switch", DACL1_2_HPLOUT_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HPCOM Switch", DACL1_2_HPLCOM_VOL, 7, 1, 0),
+};
+
+/* Right DAC_R1 Mixer */
+static const struct snd_kcontrol_new aic3x_right_dac_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Line Switch", DACR1_2_RLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("Mono Switch", DACR1_2_MONOLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HP Switch", DACR1_2_HPROUT_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HPCOM Switch", DACR1_2_HPRCOM_VOL, 7, 1, 0),
+};
+
+/* Left PGA Mixer */
+static const struct snd_kcontrol_new aic3x_left_pga_mixer_controls[] = {
+	SOC_DAPM_SINGLE_AIC3X("Line1L Switch", LINE1L_2_LADC_CTRL, 3, 1, 1),
+	SOC_DAPM_SINGLE_AIC3X("Line2L Switch", LINE2L_2_LADC_CTRL, 3, 1, 1),
+	SOC_DAPM_SINGLE_AIC3X("Mic3L Switch", MIC3LR_2_LADC_CTRL, 4, 1, 1),
+};
+
+/* Right PGA Mixer */
+static const struct snd_kcontrol_new aic3x_right_pga_mixer_controls[] = {
+	SOC_DAPM_SINGLE_AIC3X("Line1R Switch", LINE1R_2_RADC_CTRL, 3, 1, 1),
+	SOC_DAPM_SINGLE_AIC3X("Line2R Switch", LINE2R_2_RADC_CTRL, 3, 1, 1),
+	SOC_DAPM_SINGLE_AIC3X("Mic3R Switch", MIC3LR_2_RADC_CTRL, 0, 1, 1),
+};
+
+/* Left Line1 Mux */
+static const struct snd_kcontrol_new aic3x_left_line1_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[LINE1L_ENUM]);
+
+/* Right Line1 Mux */
+static const struct snd_kcontrol_new aic3x_right_line1_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[LINE1R_ENUM]);
+
+/* Left Line2 Mux */
+static const struct snd_kcontrol_new aic3x_left_line2_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[LINE2L_ENUM]);
+
+/* Right Line2 Mux */
+static const struct snd_kcontrol_new aic3x_right_line2_mux_controls =
+SOC_DAPM_ENUM("Route", aic3x_enum[LINE2R_ENUM]);
+
+/* Left PGA Bypass Mixer */
+static const struct snd_kcontrol_new aic3x_left_pga_bp_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Line Switch", PGAL_2_LLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("Mono Switch", PGAL_2_MONOLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HP Switch", PGAL_2_HPLOUT_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HPCOM Switch", PGAL_2_HPLCOM_VOL, 7, 1, 0),
+};
+
+/* Right PGA Bypass Mixer */
+static const struct snd_kcontrol_new aic3x_right_pga_bp_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Line Switch", PGAR_2_RLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("Mono Switch", PGAR_2_MONOLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HP Switch", PGAR_2_HPROUT_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HPCOM Switch", PGAR_2_HPRCOM_VOL, 7, 1, 0),
+};
+
+/* Left Line2 Bypass Mixer */
+static const struct snd_kcontrol_new aic3x_left_line2_bp_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Line Switch", LINE2L_2_LLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("Mono Switch", LINE2L_2_MONOLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HP Switch", LINE2L_2_HPLOUT_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HPCOM Switch", LINE2L_2_HPLCOM_VOL, 7, 1, 0),
+};
+
+/* Right Line2 Bypass Mixer */
+static const struct snd_kcontrol_new aic3x_right_line2_bp_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Line Switch", LINE2R_2_RLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("Mono Switch", LINE2R_2_MONOLOPM_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HP Switch", LINE2R_2_HPROUT_VOL, 7, 1, 0),
+	SOC_DAPM_SINGLE("HPCOM Switch", LINE2R_2_HPRCOM_VOL, 7, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
+	/* Left DAC to Left Outputs */
+	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", DAC_PWR, 7, 0),
+	SND_SOC_DAPM_MUX("Left DAC Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_left_dac_mux_controls),
+	SND_SOC_DAPM_MIXER("Left DAC_L1 Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_left_dac_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_left_dac_mixer_controls)),
+	SND_SOC_DAPM_MUX("Left HPCOM Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_left_hpcom_mux_controls),
+	SND_SOC_DAPM_PGA("Left Line Out", LLOPM_CTRL, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Left HP Out", HPLOUT_CTRL, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Left HP Com", HPLCOM_CTRL, 0, 0, NULL, 0),
+
+	/* Right DAC to Right Outputs */
+	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", DAC_PWR, 6, 0),
+	SND_SOC_DAPM_MUX("Right DAC Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_right_dac_mux_controls),
+	SND_SOC_DAPM_MIXER("Right DAC_R1 Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_right_dac_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_right_dac_mixer_controls)),
+	SND_SOC_DAPM_MUX("Right HPCOM Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_right_hpcom_mux_controls),
+	SND_SOC_DAPM_PGA("Right Line Out", RLOPM_CTRL, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Right HP Out", HPROUT_CTRL, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Right HP Com", HPRCOM_CTRL, 0, 0, NULL, 0),
+
+	/* Mono Output */
+	SND_SOC_DAPM_PGA("Mono Out", MONOLOPM_CTRL, 0, 0, NULL, 0),
+
+	/* Left Inputs to Left ADC */
+	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", LINE1L_2_LADC_CTRL, 2, 0),
+	SND_SOC_DAPM_MIXER("Left PGA Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_left_pga_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_left_pga_mixer_controls)),
+	SND_SOC_DAPM_MUX("Left Line1L Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_left_line1_mux_controls),
+	SND_SOC_DAPM_MUX("Left Line2L Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_left_line2_mux_controls),
+
+	/* Right Inputs to Right ADC */
+	SND_SOC_DAPM_ADC("Right ADC", "Right Capture",
+			 LINE1R_2_RADC_CTRL, 2, 0),
+	SND_SOC_DAPM_MIXER("Right PGA Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_right_pga_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_right_pga_mixer_controls)),
+	SND_SOC_DAPM_MUX("Right Line1R Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_right_line1_mux_controls),
+	SND_SOC_DAPM_MUX("Right Line2R Mux", SND_SOC_NOPM, 0, 0,
+			 &aic3x_right_line2_mux_controls),
+
+	/* Mic Bias */
+	SND_SOC_DAPM_MICBIAS("Mic Bias 2V", MICBIAS_CTRL, 6, 0),
+	SND_SOC_DAPM_MICBIAS("Mic Bias 2.5V", MICBIAS_CTRL, 7, 0),
+	SND_SOC_DAPM_MICBIAS("Mic Bias AVDD", MICBIAS_CTRL, 6, 0),
+	SND_SOC_DAPM_MICBIAS("Mic Bias AVDD", MICBIAS_CTRL, 7, 0),
+
+	/* Left PGA to Left Output bypass */
+	SND_SOC_DAPM_MIXER("Left PGA Bypass Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_left_pga_bp_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_left_pga_bp_mixer_controls)),
+
+	/* Right PGA to Right Output bypass */
+	SND_SOC_DAPM_MIXER("Right PGA Bypass Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_right_pga_bp_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_right_pga_bp_mixer_controls)),
+
+	/* Left Line2 to Left Output bypass */
+	SND_SOC_DAPM_MIXER("Left Line2 Bypass Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_left_line2_bp_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_left_line2_bp_mixer_controls)),
+
+	/* Right Line2 to Right Output bypass */
+	SND_SOC_DAPM_MIXER("Right Line2 Bypass Mixer", SND_SOC_NOPM, 0, 0,
+			   &aic3x_right_line2_bp_mixer_controls[0],
+			   ARRAY_SIZE(aic3x_right_line2_bp_mixer_controls)),
+
+	SND_SOC_DAPM_OUTPUT("LLOUT"),
+	SND_SOC_DAPM_OUTPUT("RLOUT"),
+	SND_SOC_DAPM_OUTPUT("MONO_LOUT"),
+	SND_SOC_DAPM_OUTPUT("HPLOUT"),
+	SND_SOC_DAPM_OUTPUT("HPROUT"),
+	SND_SOC_DAPM_OUTPUT("HPLCOM"),
+	SND_SOC_DAPM_OUTPUT("HPRCOM"),
+
+	SND_SOC_DAPM_INPUT("MIC3L"),
+	SND_SOC_DAPM_INPUT("MIC3R"),
+	SND_SOC_DAPM_INPUT("LINE1L"),
+	SND_SOC_DAPM_INPUT("LINE1R"),
+	SND_SOC_DAPM_INPUT("LINE2L"),
+	SND_SOC_DAPM_INPUT("LINE2R"),
+};
+
+static const char *intercon[][3] = {
+	/* Left Output */
+	{"Left DAC Mux", "DAC_L1", "Left DAC"},
+	{"Left DAC Mux", "DAC_L2", "Left DAC"},
+	{"Left DAC Mux", "DAC_L3", "Left DAC"},
+
+	{"Left DAC_L1 Mixer", "Line Switch", "Left DAC Mux"},
+	{"Left DAC_L1 Mixer", "Mono Switch", "Left DAC Mux"},
+	{"Left DAC_L1 Mixer", "HP Switch", "Left DAC Mux"},
+	{"Left DAC_L1 Mixer", "HPCOM Switch", "Left DAC Mux"},
+	{"Left Line Out", NULL, "Left DAC Mux"},
+	{"Left HP Out", NULL, "Left DAC Mux"},
+
+	{"Left HPCOM Mux", "differential of HPLOUT", "Left DAC_L1 Mixer"},
+	{"Left HPCOM Mux", "constant VCM", "Left DAC_L1 Mixer"},
+	{"Left HPCOM Mux", "single-ended", "Left DAC_L1 Mixer"},
+
+	{"Left Line Out", NULL, "Left DAC_L1 Mixer"},
+	{"Mono Out", NULL, "Left DAC_L1 Mixer"},
+	{"Left HP Out", NULL, "Left DAC_L1 Mixer"},
+	{"Left HP Com", NULL, "Left HPCOM Mux"},
+
+	{"LLOUT", NULL, "Left Line Out"},
+	{"LLOUT", NULL, "Left Line Out"},
+	{"HPLOUT", NULL, "Left HP Out"},
+	{"HPLCOM", NULL, "Left HP Com"},
+
+	/* Right Output */
+	{"Right DAC Mux", "DAC_R1", "Right DAC"},
+	{"Right DAC Mux", "DAC_R2", "Right DAC"},
+	{"Right DAC Mux", "DAC_R3", "Right DAC"},
+
+	{"Right DAC_R1 Mixer", "Line Switch", "Right DAC Mux"},
+	{"Right DAC_R1 Mixer", "Mono Switch", "Right DAC Mux"},
+	{"Right DAC_R1 Mixer", "HP Switch", "Right DAC Mux"},
+	{"Right DAC_R1 Mixer", "HPCOM Switch", "Right DAC Mux"},
+	{"Right Line Out", NULL, "Right DAC Mux"},
+	{"Right HP Out", NULL, "Right DAC Mux"},
+
+	{"Right HPCOM Mux", "differential of HPROUT", "Right DAC_R1 Mixer"},
+	{"Right HPCOM Mux", "constant VCM", "Right DAC_R1 Mixer"},
+	{"Right HPCOM Mux", "single-ended", "Right DAC_R1 Mixer"},
+	{"Right HPCOM Mux", "differential of HPLCOM", "Right DAC_R1 Mixer"},
+	{"Right HPCOM Mux", "external feedback", "Right DAC_R1 Mixer"},
+
+	{"Right Line Out", NULL, "Right DAC_R1 Mixer"},
+	{"Mono Out", NULL, "Right DAC_R1 Mixer"},
+	{"Right HP Out", NULL, "Right DAC_R1 Mixer"},
+	{"Right HP Com", NULL, "Right HPCOM Mux"},
+
+	{"RLOUT", NULL, "Right Line Out"},
+	{"RLOUT", NULL, "Right Line Out"},
+	{"HPROUT", NULL, "Right HP Out"},
+	{"HPRCOM", NULL, "Right HP Com"},
+
+	/* Mono Output */
+	{"MONOLOUT", NULL, "Mono Out"},
+	{"MONOLOUT", NULL, "Mono Out"},
+
+	/* Left Input */
+	{"Left Line1L Mux", "single-ended", "LINE1L"},
+	{"Left Line1L Mux", "differential", "LINE1L"},
+
+	{"Left Line2L Mux", "single-ended", "LINE2L"},
+	{"Left Line2L Mux", "differential", "LINE2L"},
+
+	{"Left PGA Mixer", "Line1L Switch", "Left Line1L Mux"},
+	{"Left PGA Mixer", "Line2L Switch", "Left Line2L Mux"},
+	{"Left PGA Mixer", "Mic3L Switch", "MIC3L"},
+
+	{"Left ADC", NULL, "Left PGA Mixer"},
+
+	/* Right Input */
+	{"Right Line1R Mux", "single-ended", "LINE1R"},
+	{"Right Line1R Mux", "differential", "LINE1R"},
+
+	{"Right Line2R Mux", "single-ended", "LINE2R"},
+	{"Right Line2R Mux", "differential", "LINE2R"},
+
+	{"Right PGA Mixer", "Line1R Switch", "Right Line1R Mux"},
+	{"Right PGA Mixer", "Line2R Switch", "Right Line2R Mux"},
+	{"Right PGA Mixer", "Mic3R Switch", "MIC3R"},
+
+	{"Right ADC", NULL, "Right PGA Mixer"},
+
+	/* Left PGA Bypass */
+	{"Left PGA Bypass Mixer", "Line Switch", "Left PGA Mixer"},
+	{"Left PGA Bypass Mixer", "Mono Switch", "Left PGA Mixer"},
+	{"Left PGA Bypass Mixer", "HP Switch", "Left PGA Mixer"},
+	{"Left PGA Bypass Mixer", "HPCOM Switch", "Left PGA Mixer"},
+
+	{"Left HPCOM Mux", "differential of HPLOUT", "Left PGA Bypass Mixer"},
+	{"Left HPCOM Mux", "constant VCM", "Left PGA Bypass Mixer"},
+	{"Left HPCOM Mux", "single-ended", "Left PGA Bypass Mixer"},
+
+	{"Left Line Out", NULL, "Left PGA Bypass Mixer"},
+	{"Mono Out", NULL, "Left PGA Bypass Mixer"},
+	{"Left HP Out", NULL, "Left PGA Bypass Mixer"},
+
+	/* Right PGA Bypass */
+	{"Right PGA Bypass Mixer", "Line Switch", "Right PGA Mixer"},
+	{"Right PGA Bypass Mixer", "Mono Switch", "Right PGA Mixer"},
+	{"Right PGA Bypass Mixer", "HP Switch", "Right PGA Mixer"},
+	{"Right PGA Bypass Mixer", "HPCOM Switch", "Right PGA Mixer"},
+
+	{"Right HPCOM Mux", "differential of HPROUT", "Right PGA Bypass Mixer"},
+	{"Right HPCOM Mux", "constant VCM", "Right PGA Bypass Mixer"},
+	{"Right HPCOM Mux", "single-ended", "Right PGA Bypass Mixer"},
+	{"Right HPCOM Mux", "differential of HPLCOM", "Right PGA Bypass Mixer"},
+	{"Right HPCOM Mux", "external feedback", "Right PGA Bypass Mixer"},
+
+	{"Right Line Out", NULL, "Right PGA Bypass Mixer"},
+	{"Mono Out", NULL, "Right PGA Bypass Mixer"},
+	{"Right HP Out", NULL, "Right PGA Bypass Mixer"},
+
+	/* Left Line2 Bypass */
+	{"Left Line2 Bypass Mixer", "Line Switch", "Left Line2L Mux"},
+	{"Left Line2 Bypass Mixer", "Mono Switch", "Left Line2L Mux"},
+	{"Left Line2 Bypass Mixer", "HP Switch", "Left Line2L Mux"},
+	{"Left Line2 Bypass Mixer", "HPCOM Switch", "Left Line2L Mux"},
+
+	{"Left HPCOM Mux", "differential of HPLOUT", "Left Line2 Bypass Mixer"},
+	{"Left HPCOM Mux", "constant VCM", "Left Line2 Bypass Mixer"},
+	{"Left HPCOM Mux", "single-ended", "Left Line2 Bypass Mixer"},
+
+	{"Left Line Out", NULL, "Left Line2 Bypass Mixer"},
+	{"Mono Out", NULL, "Left Line2 Bypass Mixer"},
+	{"Left HP Out", NULL, "Left Line2 Bypass Mixer"},
+
+	/* Right Line2 Bypass */
+	{"Right Line2 Bypass Mixer", "Line Switch", "Right Line2R Mux"},
+	{"Right Line2 Bypass Mixer", "Mono Switch", "Right Line2R Mux"},
+	{"Right Line2 Bypass Mixer", "HP Switch", "Right Line2R Mux"},
+	{"Right Line2 Bypass Mixer", "HPCOM Switch", "Right Line2R Mux"},
+
+	{"Right HPCOM Mux", "differential of HPROUT", "Right Line2 Bypass Mixer"},
+	{"Right HPCOM Mux", "constant VCM", "Right Line2 Bypass Mixer"},
+	{"Right HPCOM Mux", "single-ended", "Right Line2 Bypass Mixer"},
+	{"Right HPCOM Mux", "differential of HPLCOM", "Right Line2 Bypass Mixer"},
+	{"Right HPCOM Mux", "external feedback", "Right Line2 Bypass Mixer"},
+
+	{"Right Line Out", NULL, "Right Line2 Bypass Mixer"},
+	{"Mono Out", NULL, "Right Line2 Bypass Mixer"},
+	{"Right HP Out", NULL, "Right Line2 Bypass Mixer"},
+
+	/* terminator */
+	{NULL, NULL, NULL},
+};
+
+static int aic3x_add_widgets(struct snd_soc_codec *codec)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(aic3x_dapm_widgets); i++)
+		snd_soc_dapm_new_control(codec, &aic3x_dapm_widgets[i]);
+
+	/* set up audio path interconnects */
+	for (i = 0; intercon[i][0] != NULL; i++)
+		snd_soc_dapm_connect_input(codec, intercon[i][0],
+					   intercon[i][1], intercon[i][2]);
+
+	snd_soc_dapm_new_widgets(codec);
+	return 0;
+}
+
+struct aic3x_rate_divs {
+	u32 mclk;
+	u32 rate;
+	u32 fsref_reg;
+	u8 sr_reg:4;
+	u8 pllj_reg;
+	u16 plld_reg;
+};
+
+/* AIC3X codec mclk clock divider coefficients */
+static const struct aic3x_rate_divs aic3x_divs[] = {
+	/* 8k */
+	{22579200, 8000, 48000, 0xa, 8, 7075},
+	{33868800, 8000, 48000, 0xa, 5, 8049},
+	/* 11.025k */
+	{22579200, 11025, 44100, 0x6, 8, 0},
+	{33868800, 11025, 44100, 0x6, 5, 3333},
+	/* 16k */
+	{22579200, 16000, 48000, 0x4, 8, 7075},
+	{33868800, 16000, 48000, 0x4, 5, 8049},
+	/* 22.05k */
+	{22579200, 22050, 44100, 0x2, 8, 0},
+	{33868800, 22050, 44100, 0x2, 5, 3333},
+	/* 32k */
+	{22579200, 32000, 48000, 0x1, 8, 7075},
+	{33868800, 32000, 48000, 0x1, 5, 8049},
+	/* 44.1k */
+	{22579200, 44100, 44100, 0x0, 8, 0},
+	{33868800, 44100, 44100, 0x0, 5, 3333},
+	/* 48k */
+	{22579200, 48000, 48000, 0x0, 8, 7075},
+	{33868800, 48000, 48000, 0x0, 5, 8049},
+	/* 64k */
+	{22579200, 96000, 96000, 0x1, 8, 7075},
+	{33868800, 96000, 96000, 0x1, 5, 8049},
+	/* 88.2k */
+	{22579200, 88200, 88200, 0x0, 8, 0},
+	{33868800, 88200, 88200, 0x0, 5, 3333},
+	/* 96k */
+	{22579200, 96000, 96000, 0x0, 8, 7075},
+	{33868800, 96000, 96000, 0x0, 5, 8049},
+};
+
+static inline int aic3x_get_divs(int mclk, int rate)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(aic3x_divs); i++) {
+		if (aic3x_divs[i].rate == rate && aic3x_divs[i].mclk == mclk)
+			return i;
+	}
+
+	return 0;
+}
+
+static int aic3x_hw_params(struct snd_pcm_substream *substream,
+			   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_device *socdev = rtd->socdev;
+	struct snd_soc_codec *codec = socdev->codec;
+	struct aic3x_priv *aic3x = codec->private_data;
+	int i;
+	u8 data, pll_p, pll_r, pll_j;
+	u16 pll_d;
+
+	i = aic3x_get_divs(aic3x->sysclk, params_rate(params));
+
+	/* Route Left DAC to left channel input and
+	 * right DAC to right channel input */
+	data = (LDAC2LCH | RDAC2RCH);
+	switch (aic3x_divs[i].fsref_reg) {
+	case 44100:
+		data |= FSREF_44100;
+		break;
+	case 48000:
+		data |= FSREF_48000;
+		break;
+	case 88200:
+		data |= FSREF_44100 | DUAL_RATE_MODE;
+		break;
+	case 96000:
+		data |= FSREF_48000 | DUAL_RATE_MODE;
+		break;
+	}
+	aic3x_write(codec, AIC3X_CODEC_DATAPATH_REG, data);
+
+	/* codec sample rate select */
+	data = aic3x_divs[i].sr_reg;
+	data |= (data << 4);
+	aic3x_write(codec, AIC3X_SAMPLE_RATE_SEL_REG, data);
+
+	/* Use PLL for generation Fsref by equation:
+	 * Fsref = (MCLK * K * R)/(2048 * P);
+	 * Fix P = 2 and R = 1 and calculate K, if
+	 * K = J.D, i.e. J - an interger portion of K and D is the fractional
+	 * one with 4 digits of precision;
+	 * Example:
+	 * For MCLK = 22.5792 MHz and Fsref = 48kHz:
+	 * Select P = 2, R= 1, K = 8.7074, which results in J = 8, D = 7074
+	 */
+	pll_p = 2;
+	pll_r = 1;
+	pll_j = aic3x_divs[i].pllj_reg;
+	pll_d = aic3x_divs[i].plld_reg;
+
+	data = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
+	aic3x_write(codec, AIC3X_PLL_PROGA_REG, data | (pll_p << PLLP_SHIFT));
+	aic3x_write(codec, AIC3X_OVRF_STATUS_AND_PLLR_REG, pll_r << PLLR_SHIFT);
+	aic3x_write(codec, AIC3X_PLL_PROGB_REG, pll_j << PLLJ_SHIFT);
+	aic3x_write(codec, AIC3X_PLL_PROGC_REG, (pll_d >> 6) << PLLD_MSB_SHIFT);
+	aic3x_write(codec, AIC3X_PLL_PROGD_REG,
+		    (pll_d & 0x3F) << PLLD_LSB_SHIFT);
+
+	/* select data word length */
+	data =
+	    aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLB) & (~(0x3 << 4));
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		data |= (0x01 << 4);
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		data |= (0x02 << 4);
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		data |= (0x03 << 4);
+		break;
+	}
+	aic3x_write(codec, AIC3X_ASD_INTF_CTRLB, data);
+
+	return 0;
+}
+
+static int aic3x_mute(struct snd_soc_codec_dai *dai, int mute)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	u8 ldac_reg = aic3x_read_reg_cache(codec, LDAC_VOL) & ~MUTE_ON;
+	u8 rdac_reg = aic3x_read_reg_cache(codec, RDAC_VOL) & ~MUTE_ON;
+
+	if (mute) {
+		aic3x_write(codec, LDAC_VOL, ldac_reg | MUTE_ON);
+		aic3x_write(codec, RDAC_VOL, rdac_reg | MUTE_ON);
+	} else {
+		aic3x_write(codec, LDAC_VOL, ldac_reg);
+		aic3x_write(codec, RDAC_VOL, rdac_reg);
+	}
+
+	return 0;
+}
+
+static int aic3x_set_dai_sysclk(struct snd_soc_codec_dai *codec_dai,
+				int clk_id, unsigned int freq, int dir)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct aic3x_priv *aic3x = codec->private_data;
+
+	switch (freq) {
+	case 22579200:
+	case 33868800:
+		aic3x->sysclk = freq;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int aic3x_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+			     unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct aic3x_priv *aic3x = codec->private_data;
+	u8 iface_areg = 0;
+	u8 iface_breg = 0;
+
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		aic3x->master = 1;
+		iface_areg |= BIT_CLK_MASTER | WORD_CLK_MASTER;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		aic3x->master = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		iface_breg |= (0x01 << 6);
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		iface_breg |= (0x02 << 6);
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		iface_breg |= (0x03 << 6);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* set iface */
+	aic3x_write(codec, AIC3X_ASD_INTF_CTRLA, iface_areg);
+	aic3x_write(codec, AIC3X_ASD_INTF_CTRLB, iface_breg);
+
+	return 0;
+}
+
+static int aic3x_dapm_event(struct snd_soc_codec *codec, int event)
+{
+	struct aic3x_priv *aic3x = codec->private_data;
+	u8 reg;
+
+	switch (event) {
+	case SNDRV_CTL_POWER_D0:
+		/* all power is driven by DAPM system */
+		if (aic3x->master) {
+			/* enable pll */
+			reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
+			aic3x_write(codec, AIC3X_PLL_PROGA_REG,
+				    reg | PLL_ENABLE);
+		}
+		break;
+	case SNDRV_CTL_POWER_D1:
+	case SNDRV_CTL_POWER_D2:
+		break;
+	case SNDRV_CTL_POWER_D3hot:
+		/*
+		 * all power is driven by DAPM system,
+		 * so output power is safe if bypass was set
+		 */
+		if (aic3x->master) {
+			/* disable pll */
+			reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
+			aic3x_write(codec, AIC3X_PLL_PROGA_REG,
+				    reg & ~PLL_ENABLE);
+		}
+		break;
+	case SNDRV_CTL_POWER_D3cold:
+		/* force all power off */
+		reg = aic3x_read_reg_cache(codec, LINE1L_2_LADC_CTRL);
+		aic3x_write(codec, LINE1L_2_LADC_CTRL, reg & ~LADC_PWR_ON);
+		reg = aic3x_read_reg_cache(codec, LINE1R_2_RADC_CTRL);
+		aic3x_write(codec, LINE1R_2_RADC_CTRL, reg & ~RADC_PWR_ON);
+
+		reg = aic3x_read_reg_cache(codec, DAC_PWR);
+		aic3x_write(codec, DAC_PWR, reg & ~(LDAC_PWR_ON | RDAC_PWR_ON));
+
+		reg = aic3x_read_reg_cache(codec, HPLOUT_CTRL);
+		aic3x_write(codec, HPLOUT_CTRL, reg & ~HPLOUT_PWR_ON);
+		reg = aic3x_read_reg_cache(codec, HPROUT_CTRL);
+		aic3x_write(codec, HPROUT_CTRL, reg & ~HPROUT_PWR_ON);
+
+		reg = aic3x_read_reg_cache(codec, HPLCOM_CTRL);
+		aic3x_write(codec, HPLCOM_CTRL, reg & ~HPLCOM_PWR_ON);
+		reg = aic3x_read_reg_cache(codec, HPRCOM_CTRL);
+		aic3x_write(codec, HPRCOM_CTRL, reg & ~HPRCOM_PWR_ON);
+
+		reg = aic3x_read_reg_cache(codec, MONOLOPM_CTRL);
+		aic3x_write(codec, MONOLOPM_CTRL, reg & ~MONOLOPM_PWR_ON);
+
+		reg = aic3x_read_reg_cache(codec, LLOPM_CTRL);
+		aic3x_write(codec, LLOPM_CTRL, reg & ~LLOPM_PWR_ON);
+		reg = aic3x_read_reg_cache(codec, RLOPM_CTRL);
+		aic3x_write(codec, RLOPM_CTRL, reg & ~RLOPM_PWR_ON);
+
+		if (aic3x->master) {
+			/* disable pll */
+			reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG);
+			aic3x_write(codec, AIC3X_PLL_PROGA_REG,
+				    reg & ~PLL_ENABLE);
+		}
+		break;
+	}
+	codec->dapm_state = event;
+
+	return 0;
+}
+
+#define AIC3X_RATES	SNDRV_PCM_RATE_8000_96000
+#define AIC3X_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+			 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+struct snd_soc_codec_dai aic3x_dai = {
+	.name = "aic3x",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = AIC3X_RATES,
+		.formats = AIC3X_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = AIC3X_RATES,
+		.formats = AIC3X_FORMATS,},
+	.ops = {
+		.hw_params = aic3x_hw_params,
+	},
+	.dai_ops = {
+		.digital_mute = aic3x_mute,
+		.set_sysclk = aic3x_set_dai_sysclk,
+		.set_fmt = aic3x_set_dai_fmt,
+	}
+};
+EXPORT_SYMBOL_GPL(aic3x_dai);
+
+static int aic3x_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->codec;
+
+	aic3x_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+
+	return 0;
+}
+
+static int aic3x_resume(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->codec;
+	int i;
+	u8 data[2];
+	u8 *cache = codec->reg_cache;
+
+	/* Sync reg_cache with the hardware */
+	for (i = 0; i < ARRAY_SIZE(aic3x_reg); i++) {
+		data[0] = i;
+		data[1] = cache[i];
+		codec->hw_write(codec->control_data, data, 2);
+	}
+
+	aic3x_dapm_event(codec, codec->suspend_dapm_state);
+
+	return 0;
+}
+
+/*
+ * initialise the AIC3X driver
+ * register the mixer and dsp interfaces with the kernel
+ */
+static int aic3x_init(struct snd_soc_device *socdev)
+{
+	struct snd_soc_codec *codec = socdev->codec;
+	int reg, ret = 0;
+
+	codec->name = "aic3x";
+	codec->owner = THIS_MODULE;
+	codec->read = aic3x_read_reg_cache;
+	codec->write = aic3x_write;
+	codec->dapm_event = aic3x_dapm_event;
+	codec->dai = &aic3x_dai;
+	codec->num_dai = 1;
+	codec->reg_cache_size = sizeof(aic3x_reg);
+	codec->reg_cache = kmemdup(aic3x_reg, sizeof(aic3x_reg), GFP_KERNEL);
+	if (codec->reg_cache == NULL)
+		return -ENOMEM;
+
+	aic3x_write(codec, AIC3X_PAGE_SELECT, PAGE0_SELECT);
+	aic3x_write(codec, AIC3X_RESET, SOFT_RESET);
+
+	/* register pcms */
+	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+	if (ret < 0) {
+		printk(KERN_ERR "aic3x: failed to create pcms\n");
+		goto pcm_err;
+	}
+
+	/* DAC default volume and mute */
+	aic3x_write(codec, LDAC_VOL, DEFAULT_VOL | MUTE_ON);
+	aic3x_write(codec, RDAC_VOL, DEFAULT_VOL | MUTE_ON);
+
+	/* DAC to HP default volume and route to Output mixer */
+	aic3x_write(codec, DACL1_2_HPLOUT_VOL, DEFAULT_VOL | ROUTE_ON);
+	aic3x_write(codec, DACR1_2_HPROUT_VOL, DEFAULT_VOL | ROUTE_ON);
+	aic3x_write(codec, DACL1_2_HPLCOM_VOL, DEFAULT_VOL | ROUTE_ON);
+	aic3x_write(codec, DACR1_2_HPRCOM_VOL, DEFAULT_VOL | ROUTE_ON);
+	/* DAC to Line Out default volume and route to Output mixer */
+	aic3x_write(codec, DACL1_2_LLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
+	aic3x_write(codec, DACR1_2_RLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
+	/* DAC to Mono Line Out default volume and route to Output mixer */
+	aic3x_write(codec, DACL1_2_MONOLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
+	aic3x_write(codec, DACR1_2_MONOLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
+
+	/* unmute all outputs */
+	reg = aic3x_read_reg_cache(codec, LLOPM_CTRL);
+	aic3x_write(codec, LLOPM_CTRL, reg | UNMUTE);
+	reg = aic3x_read_reg_cache(codec, RLOPM_CTRL);
+	aic3x_write(codec, RLOPM_CTRL, reg | UNMUTE);
+	reg = aic3x_read_reg_cache(codec, MONOLOPM_CTRL);
+	aic3x_write(codec, MONOLOPM_CTRL, reg | UNMUTE);
+	reg = aic3x_read_reg_cache(codec, HPLOUT_CTRL);
+	aic3x_write(codec, HPLOUT_CTRL, reg | UNMUTE);
+	reg = aic3x_read_reg_cache(codec, HPROUT_CTRL);
+	aic3x_write(codec, HPROUT_CTRL, reg | UNMUTE);
+	reg = aic3x_read_reg_cache(codec, HPLCOM_CTRL);
+	aic3x_write(codec, HPLCOM_CTRL, reg | UNMUTE);
+	reg = aic3x_read_reg_cache(codec, HPRCOM_CTRL);
+	aic3x_write(codec, HPRCOM_CTRL, reg | UNMUTE);
+
+	/* ADC default volume and unmute */
+	aic3x_write(codec, LADC_VOL, DEFAULT_GAIN);
+	aic3x_write(codec, RADC_VOL, DEFAULT_GAIN);
+	/* By default route Line1 to ADC PGA mixer */
+	aic3x_write(codec, LINE1L_2_LADC_CTRL, 0x0);
+	aic3x_write(codec, LINE1R_2_RADC_CTRL, 0x0);
+
+	/* PGA to HP Bypass default volume, disconnect from Output Mixer */
+	aic3x_write(codec, PGAL_2_HPLOUT_VOL, DEFAULT_VOL);
+	aic3x_write(codec, PGAR_2_HPROUT_VOL, DEFAULT_VOL);
+	aic3x_write(codec, PGAL_2_HPLCOM_VOL, DEFAULT_VOL);
+	aic3x_write(codec, PGAR_2_HPRCOM_VOL, DEFAULT_VOL);
+	/* PGA to Line Out default volume, disconnect from Output Mixer */
+	aic3x_write(codec, PGAL_2_LLOPM_VOL, DEFAULT_VOL);
+	aic3x_write(codec, PGAR_2_RLOPM_VOL, DEFAULT_VOL);
+	/* PGA to Mono Line Out default volume, disconnect from Output Mixer */
+	aic3x_write(codec, PGAL_2_MONOLOPM_VOL, DEFAULT_VOL);
+	aic3x_write(codec, PGAR_2_MONOLOPM_VOL, DEFAULT_VOL);
+
+	/* Line2 to HP Bypass default volume, disconnect from Output Mixer */
+	aic3x_write(codec, LINE2L_2_HPLOUT_VOL, DEFAULT_VOL);
+	aic3x_write(codec, LINE2R_2_HPROUT_VOL, DEFAULT_VOL);
+	aic3x_write(codec, LINE2L_2_HPLCOM_VOL, DEFAULT_VOL);
+	aic3x_write(codec, LINE2R_2_HPRCOM_VOL, DEFAULT_VOL);
+	/* Line2 Line Out default volume, disconnect from Output Mixer */
+	aic3x_write(codec, LINE2L_2_LLOPM_VOL, DEFAULT_VOL);
+	aic3x_write(codec, LINE2R_2_RLOPM_VOL, DEFAULT_VOL);
+	/* Line2 to Mono Out default volume, disconnect from Output Mixer */
+	aic3x_write(codec, LINE2L_2_MONOLOPM_VOL, DEFAULT_VOL);
+	aic3x_write(codec, LINE2R_2_MONOLOPM_VOL, DEFAULT_VOL);
+
+	/* off, with power on */
+	aic3x_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+
+	aic3x_add_controls(codec);
+	aic3x_add_widgets(codec);
+	ret = snd_soc_register_card(socdev);
+	if (ret < 0) {
+		printk(KERN_ERR "aic3x: failed to register card\n");
+		goto card_err;
+	}
+
+	return ret;
+
+card_err:
+	snd_soc_free_pcms(socdev);
+	snd_soc_dapm_free(socdev);
+pcm_err:
+	kfree(codec->reg_cache);
+	return ret;
+}
+
+static struct snd_soc_device *aic3x_socdev;
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+/*
+ * AIC3X 2 wire address can be up to 4 devices with device addresses
+ * 0x18, 0x19, 0x1A, 0x1B
+ */
+static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
+
+/* Magic definition of all other variables and things */
+I2C_CLIENT_INSMOD;
+
+static struct i2c_driver aic3x_i2c_driver;
+static struct i2c_client client_template;
+
+/*
+ * If the i2c layer weren't so broken, we could pass this kind of data
+ * around
+ */
+static int aic3x_codec_probe(struct i2c_adapter *adap, int addr, int kind)
+{
+	struct snd_soc_device *socdev = aic3x_socdev;
+	struct aic3x_setup_data *setup = socdev->codec_data;
+	struct snd_soc_codec *codec = socdev->codec;
+	struct i2c_client *i2c;
+	int ret;
+
+	if (addr != setup->i2c_address)
+		return -ENODEV;
+
+	client_template.adapter = adap;
+	client_template.addr = addr;
+
+	i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
+	if (i2c == NULL) {
+		kfree(codec);
+		return -ENOMEM;
+	}
+	i2c_set_clientdata(i2c, codec);
+	codec->control_data = i2c;
+
+	ret = i2c_attach_client(i2c);
+	if (ret < 0) {
+		printk(KERN_ERR "aic3x: failed to attach codec at addr %x\n",
+		       addr);
+		goto err;
+	}
+
+	ret = aic3x_init(socdev);
+	if (ret < 0) {
+		printk(KERN_ERR "aic3x: failed to initialise AIC3X\n");
+		goto err;
+	}
+	return ret;
+
+err:
+	kfree(codec);
+	kfree(i2c);
+	return ret;
+}
+
+static int aic3x_i2c_detach(struct i2c_client *client)
+{
+	struct snd_soc_codec *codec = i2c_get_clientdata(client);
+	i2c_detach_client(client);
+	kfree(codec->reg_cache);
+	kfree(client);
+	return 0;
+}
+
+static int aic3x_i2c_attach(struct i2c_adapter *adap)
+{
+	return i2c_probe(adap, &addr_data, aic3x_codec_probe);
+}
+
+/* machine i2c codec control layer */
+static struct i2c_driver aic3x_i2c_driver = {
+	.driver = {
+		.name = "aic3x I2C Codec",
+		.owner = THIS_MODULE,
+	},
+	.id = I2C_DRIVERID_I2CDEV,
+	.attach_adapter = aic3x_i2c_attach,
+	.detach_client = aic3x_i2c_detach,
+	.command = NULL,
+};
+
+static struct i2c_client client_template = {
+	.name = "AIC3X",
+	.driver = &aic3x_i2c_driver,
+};
+#endif
+
+static int aic3x_probe(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct aic3x_setup_data *setup;
+	struct snd_soc_codec *codec;
+	struct aic3x_priv *aic3x;
+	int ret = 0;
+
+	printk(KERN_INFO "AIC3X Audio Codec %s\n", AIC3X_VERSION);
+
+	setup = socdev->codec_data;
+	codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+	if (codec == NULL)
+		return -ENOMEM;
+
+	aic3x = kzalloc(sizeof(struct aic3x_priv), GFP_KERNEL);
+	if (aic3x == NULL) {
+		kfree(codec);
+		return -ENOMEM;
+	}
+
+	codec->private_data = aic3x;
+	socdev->codec = codec;
+	mutex_init(&codec->mutex);
+	INIT_LIST_HEAD(&codec->dapm_widgets);
+	INIT_LIST_HEAD(&codec->dapm_paths);
+
+	aic3x_socdev = socdev;
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	if (setup->i2c_address) {
+		normal_i2c[0] = setup->i2c_address;
+		codec->hw_write = (hw_write_t) i2c_master_send;
+		ret = i2c_add_driver(&aic3x_i2c_driver);
+		if (ret != 0)
+			printk(KERN_ERR "can't add i2c driver");
+	}
+#else
+	/* Add other interfaces here */
+#endif
+	return ret;
+}
+
+static int aic3x_remove(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->codec;
+
+	/* power down chip */
+	if (codec->control_data)
+		aic3x_dapm_event(codec, SNDRV_CTL_POWER_D3);
+
+	snd_soc_free_pcms(socdev);
+	snd_soc_dapm_free(socdev);
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	i2c_del_driver(&aic3x_i2c_driver);
+#endif
+	kfree(codec->private_data);
+	kfree(codec);
+
+	return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_aic3x = {
+	.probe = aic3x_probe,
+	.remove = aic3x_remove,
+	.suspend = aic3x_suspend,
+	.resume = aic3x_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_aic3x);
+
+MODULE_DESCRIPTION("ASoC TLV320AIC3X codec driver");
+MODULE_AUTHOR("Vladimir Barinov");
+MODULE_LICENSE("GPL");

sound/soc/codecs/tlv320aic3x.h

+/*
+ * ALSA SoC TLV320AIC3X codec driver
+ *
+ * Author:      Vladimir Barinov, <vbarinov@ru.mvista.com>
+ * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.com>
+ *
+ * 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.
+ */
+
+#ifndef _AIC3X_H
+#define _AIC3X_H
+
+/* AIC3X register space */
+#define AIC3X_CACHEREGNUM		103
+
+/* Page select register */
+#define AIC3X_PAGE_SELECT		0
+/* Software reset register */
+#define AIC3X_RESET			1
+/* Codec Sample rate select register */
+#define AIC3X_SAMPLE_RATE_SEL_REG	2
+/* PLL progrramming register A */
+#define AIC3X_PLL_PROGA_REG		3
+/* PLL progrramming register B */
+#define AIC3X_PLL_PROGB_REG		4
+/* PLL progrramming register C */
+#define AIC3X_PLL_PROGC_REG		5
+/* PLL progrramming register D */
+#define AIC3X_PLL_PROGD_REG		6
+/* Codec datapath setup register */
+#define AIC3X_CODEC_DATAPATH_REG	7
+/* Audio serial data interface control register A */
+#define AIC3X_ASD_INTF_CTRLA		8
+/* Audio serial data interface control register B */
+#define AIC3X_ASD_INTF_CTRLB		9
+/* Audio overflow status and PLL R value programming register */
+#define AIC3X_OVRF_STATUS_AND_PLLR_REG	11
+
+/* ADC PGA Gain control registers */
+#define LADC_VOL			15
+#define RADC_VOL			16
+/* MIC3 control registers */
+#define MIC3LR_2_LADC_CTRL		17
+#define MIC3LR_2_RADC_CTRL		18
+/* Line1 Input control registers */
+#define LINE1L_2_LADC_CTRL		19
+#define LINE1R_2_RADC_CTRL		22
+/* Line2 Input control registers */
+#define LINE2L_2_LADC_CTRL		20
+#define LINE2R_2_RADC_CTRL		23
+/* MICBIAS Control Register */
+#define MICBIAS_CTRL			25
+
+/* AGC Control Registers A, B, C */
+#define LAGC_CTRL_A			26
+#define LAGC_CTRL_B			27
+#define LAGC_CTRL_C			28
+#define RAGC_CTRL_A			29
+#define RAGC_CTRL_B			30
+#define RAGC_CTRL_C			31
+
+/* DAC Power and Left High Power Output control registers */
+#define DAC_PWR				37
+#define HPLCOM_CFG			37
+/* Right High Power Output control registers */
+#define HPRCOM_CFG			38
+/* DAC Output Switching control registers */
+#define DAC_LINE_MUX			41
+/* High Power Output Driver Pop Reduction registers */
+#define HPOUT_POP_REDUCTION		42
+/* DAC Digital control registers */
+#define LDAC_VOL			43
+#define RDAC_VOL			44
+/* High Power Output control registers */
+#define LINE2L_2_HPLOUT_VOL		45
+#define LINE2R_2_HPROUT_VOL		62
+#define PGAL_2_HPLOUT_VOL		46
+#define PGAR_2_HPROUT_VOL		63
+#define DACL1_2_HPLOUT_VOL		47
+#define DACR1_2_HPROUT_VOL		64
+#define HPLOUT_CTRL			51
+#define HPROUT_CTRL			65
+/* High Power COM control registers */
+#define LINE2L_2_HPLCOM_VOL		52
+#define LINE2R_2_HPRCOM_VOL		69
+#define PGAL_2_HPLCOM_VOL		53
+#define PGAR_2_HPRCOM_VOL		70
+#define DACL1_2_HPLCOM_VOL		54
+#define DACR1_2_HPRCOM_VOL		71
+#define HPLCOM_CTRL			58
+#define HPRCOM_CTRL			72
+/* Mono Line Output Plus/Minus control registers */
+#define LINE2L_2_MONOLOPM_VOL		73
+#define LINE2R_2_MONOLOPM_VOL		76
+#define PGAL_2_MONOLOPM_VOL		74
+#define PGAR_2_MONOLOPM_VOL		77
+#define DACL1_2_MONOLOPM_VOL		75
+#define DACR1_2_MONOLOPM_VOL		78
+#define MONOLOPM_CTRL			79
+/* Line Output Plus/Minus control registers */
+#define LINE2L_2_LLOPM_VOL		80
+#define LINE2R_2_RLOPM_VOL		90
+#define PGAL_2_LLOPM_VOL		81
+#define PGAR_2_RLOPM_VOL		91
+#define DACL1_2_LLOPM_VOL		82
+#define DACR1_2_RLOPM_VOL		92
+#define LLOPM_CTRL			86
+#define RLOPM_CTRL			93
+/* Clock generation control register */
+#define AIC3X_CLKGEN_CTRL_REG		102
+
+/* Page select register bits */
+#define PAGE0_SELECT		0
+#define PAGE1_SELECT		1
+
+/* Audio serial data interface control register A bits */
+#define BIT_CLK_MASTER          0x80
+#define WORD_CLK_MASTER         0x40
+
+/* Codec Datapath setup register 7 */
+#define FSREF_44100		(1 << 7)
+#define FSREF_48000		(0 << 7)
+#define DUAL_RATE_MODE		((1 << 5) | (1 << 6))
+#define LDAC2LCH		(0x1 << 3)
+#define RDAC2RCH		(0x1 << 1)
+
+/* PLL registers bitfields */
+#define PLLP_SHIFT		0
+#define PLLR_SHIFT		0
+#define PLLJ_SHIFT		2
+#define PLLD_MSB_SHIFT		0
+#define PLLD_LSB_SHIFT		2
+
+/* Clock generation register bits */
+#define PLL_CLKIN_SHIFT		4
+#define MCLK_SOURCE		0x0
+#define PLL_CLKDIV_SHIFT	0
+
+/* Software reset register bits */
+#define SOFT_RESET		0x80
+
+/* PLL progrramming register A bits */
+#define PLL_ENABLE		0x80
+
+/* Route bits */
+#define ROUTE_ON		0x80
+
+/* Mute bits */
+#define UNMUTE			0x08
+#define MUTE_ON			0x80
+
+/* Power bits */
+#define LADC_PWR_ON		0x04
+#define RADC_PWR_ON		0x04
+#define LDAC_PWR_ON		0x80
+#define RDAC_PWR_ON		0x40
+#define HPLOUT_PWR_ON		0x01
+#define HPROUT_PWR_ON		0x01
+#define HPLCOM_PWR_ON		0x01
+#define HPRCOM_PWR_ON		0x01
+#define MONOLOPM_PWR_ON		0x01
+#define LLOPM_PWR_ON		0x01
+#define RLOPM_PWR_ON	0x01
+
+#define INVERT_VOL(val)   (0x7f - val)
+
+/* Default output volume (inverted) */
+#define DEFAULT_VOL     INVERT_VOL(0x50)
+/* Default input volume */
+#define DEFAULT_GAIN    0x20
+
+struct aic3x_setup_data {
+	unsigned short i2c_address;
+};
+
+extern struct snd_soc_codec_dai aic3x_dai;
+extern struct snd_soc_codec_device soc_codec_dev_aic3x;
+
+#endif /* _AIC3X_H */