ALSA: ASoC: Add TLV320AIC23 codec driver (c1f27190) · Commits · e / devices / android_kernel_oneplus_sm8150

sound/soc/codecs/Kconfig

+5 −0

Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@ config SND_SOC_ALL_CODECS
		select SND_SOC_AK4535
		select SND_SOC_CS4270
		select SND_SOC_SSM2602
		select SND_SOC_TLV320AIC23
		select SND_SOC_TLV320AIC26
		select SND_SOC_TLV320AIC3X
		select SND_SOC_UDA1380
		@@ -62,6 +63,10 @@ config SND_SOC_CS4270_VD33_ERRATA
		config SND_SOC_SSM2602
		tristate

		config SND_SOC_TLV320AIC23
		tristate
		depends on I2C

		config SND_SOC_TLV320AIC26
		tristate "TI TLV320AIC26 Codec support"
		depends on SND_SOC && SPI

sound/soc/codecs/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -4,6 +4,7 @@ snd-soc-ad73311-objs := ad73311.o
		snd-soc-ak4535-objs := ak4535.o
		snd-soc-cs4270-objs := cs4270.o
		snd-soc-ssm2602-objs := ssm2602.o
		snd-soc-tlv320aic23-objs := tlv320aic23.o
		snd-soc-tlv320aic26-objs := tlv320aic26.o
		snd-soc-tlv320aic3x-objs := tlv320aic3x.o
		snd-soc-uda1380-objs := uda1380.o
		@@ -25,6 +26,7 @@ obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o
		obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o
		obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
		obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o
		obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
		obj-$(CONFIG_SND_SOC_TLV320AIC26) += snd-soc-tlv320aic26.o
		obj-$(CONFIG_SND_SOC_TLV320AIC3X) += snd-soc-tlv320aic3x.o
		obj-$(CONFIG_SND_SOC_UDA1380) += snd-soc-uda1380.o

sound/soc/codecs/tlv320aic23.c

0 → 100644

+670 −0

Original line number	Diff line number	Diff line
		/*
		* ALSA SoC TLV320AIC23 codec driver
		*
		* Author: Arun KS, <arunks@mistralsolutions.com>
		* Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
		*
		* Based on sound/soc/codecs/wm8731.c by Richard Purdie
		*
		* 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 AIC23 is a driver for a low power stereo audio
		* codec tlv320aic23
		*
		* The machine layer should disable unsupported inputs/outputs by
		* snd_soc_dapm_disable_pin(codec, "LHPOUT"), 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/core.h>
		#include <sound/pcm.h>
		#include <sound/pcm_params.h>
		#include <sound/soc.h>
		#include <sound/soc-dapm.h>
		#include <sound/tlv.h>
		#include <sound/initval.h>

		#include "tlv320aic23.h"

		#define AUDIO_NAME "tlv320aic23"
		#define AIC23_VERSION "0.1"

		struct tlv320aic23_srate_reg_info {
		u32 sample_rate;
		u8 control; /* SR3, SR2, SR1, SR0 and BOSR */
		u8 divider; /* if 0 CLKIN = MCLK, if 1 CLKIN = MCLK/2 */
		};

		/*
		* AIC23 register cache
		*/
		static const u16 tlv320aic23_reg[] = {
		0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */
		0x001A, 0x0004, 0x0007, 0x0001, /* 4 */
		0x0020, 0x0000, 0x0000, 0x0000, /* 8 */
		0x0000, 0x0000, 0x0000, 0x0000, /* 12 */
		};

		/*
		* read tlv320aic23 register cache
		*/
		static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec
		*codec, unsigned int reg)
		{
		u16 *cache = codec->reg_cache;
		if (reg >= ARRAY_SIZE(tlv320aic23_reg))
		return -1;
		return cache[reg];
		}

		/*
		* write tlv320aic23 register cache
		*/
		static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec *codec,
		u8 reg, u16 value)
		{
		u16 *cache = codec->reg_cache;
		if (reg >= ARRAY_SIZE(tlv320aic23_reg))
		return;
		cache[reg] = value;
		}

		/*
		* write to the tlv320aic23 register space
		*/
		static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg,
		unsigned int value)
		{

		u8 data;

		/* TLV320AIC23 has 7 bit address and 9 bits of data
		* so we need to switch one data bit into reg and rest
		* of data into val
		*/

		if ((reg < 0 \|\| reg > 9) && (reg != 15)) {
		printk(KERN_WARNING "%s Invalid register R%d\n", __func__, reg);
		return -1;
		}

		data = (reg << 1) \| (value >> 8 & 0x01);

		tlv320aic23_write_reg_cache(codec, reg, value);

		if (codec->hw_write(codec->control_data, data,
		(value & 0xff)) == 0)
		return 0;

		printk(KERN_ERR "%s cannot write %03x to register R%d\n", __func__,
		value, reg);

		return -EIO;
		}

		static const char *rec_src_text[] = { "Line", "Mic" };
		static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
		static const char *sidetone_text[] = {"-6db", "-9db", "-12db", "-18db", "0db"};

		static const struct soc_enum rec_src_enum =
		SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);

		static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
		SOC_DAPM_ENUM("Input Select", rec_src_enum);

		static const struct soc_enum tlv320aic23_rec_src =
		SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
		static const struct soc_enum tlv320aic23_deemph =
		SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text);
		static const struct soc_enum tlv320aic23_sidetone =
		SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 6, 5, sidetone_text);

		static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
		static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);

		static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
		SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
		TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
		SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
		SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
		TLV320AIC23_RINVOL, 7, 1, 0),
		SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
		TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
		SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
		SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
		SOC_ENUM("Sidetone Gain", tlv320aic23_sidetone),
		SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
		};

		/* add non dapm controls */
		static int tlv320aic23_add_controls(struct snd_soc_codec *codec)
		{

		int err, i;

		for (i = 0; i < ARRAY_SIZE(tlv320aic23_snd_controls); i++) {
		err = snd_ctl_add(codec->card,
		snd_soc_cnew(&tlv320aic23_snd_controls[i],
		codec, NULL));
		if (err < 0)
		return err;
		}

		return 0;

		}

		/* PGA Mixer controls for Line and Mic switch */
		static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
		SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
		SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
		SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
		};

		static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
		SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
		SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
		SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
		&tlv320aic23_rec_src_mux_controls),
		SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
		&tlv320aic23_output_mixer_controls[0],
		ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
		SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
		SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),

		SND_SOC_DAPM_OUTPUT("LHPOUT"),
		SND_SOC_DAPM_OUTPUT("RHPOUT"),
		SND_SOC_DAPM_OUTPUT("LOUT"),
		SND_SOC_DAPM_OUTPUT("ROUT"),

		SND_SOC_DAPM_INPUT("LLINEIN"),
		SND_SOC_DAPM_INPUT("RLINEIN"),

		SND_SOC_DAPM_INPUT("MICIN"),
		};

		static const struct snd_soc_dapm_route intercon[] = {
		/* Output Mixer */
		{"Output Mixer", "Line Bypass Switch", "Line Input"},
		{"Output Mixer", "Playback Switch", "DAC"},
		{"Output Mixer", "Mic Sidetone Switch", "Mic Input"},

		/* Outputs */
		{"RHPOUT", NULL, "Output Mixer"},
		{"LHPOUT", NULL, "Output Mixer"},
		{"LOUT", NULL, "Output Mixer"},
		{"ROUT", NULL, "Output Mixer"},

		/* Inputs */
		{"Line Input", "NULL", "LLINEIN"},
		{"Line Input", "NULL", "RLINEIN"},

		{"Mic Input", "NULL", "MICIN"},

		/* input mux */
		{"Capture Source", "Line", "Line Input"},
		{"Capture Source", "Mic", "Mic Input"},
		{"ADC", NULL, "Capture Source"},

		};

		/* tlv320aic23 related */
		static const struct tlv320aic23_srate_reg_info srate_reg_info[] = {
		{4000, 0x06, 1}, /* 4000 */
		{8000, 0x06, 0}, /* 8000 */
		{16000, 0x0C, 1}, /* 16000 */
		{22050, 0x11, 1}, /* 22050 */
		{24000, 0x00, 1}, /* 24000 */
		{32000, 0x0C, 0}, /* 32000 */
		{44100, 0x11, 0}, /* 44100 */
		{48000, 0x00, 0}, /* 48000 */
		{88200, 0x1F, 0}, /* 88200 */
		{96000, 0x0E, 0}, /* 96000 */
		};

		static int tlv320aic23_add_widgets(struct snd_soc_codec *codec)
		{
		snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
		ARRAY_SIZE(tlv320aic23_dapm_widgets));

		/* set up audio path interconnects */
		snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));

		snd_soc_dapm_new_widgets(codec);
		return 0;
		}

		static int tlv320aic23_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;
		u16 iface_reg, data;
		u8 count = 0;

		iface_reg =
		tlv320aic23_read_reg_cache(codec,
		TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);

		/* Search for the right sample rate */
		/* Verify what happens if the rate is not supported
		* now it goes to 96Khz */
		while ((srate_reg_info[count].sample_rate != params_rate(params)) &&
		(count < ARRAY_SIZE(srate_reg_info))) {
		count++;
		}

		data = (srate_reg_info[count].divider << TLV320AIC23_CLKIN_SHIFT) \|
		(srate_reg_info[count]. control << TLV320AIC23_BOSR_SHIFT) \|
		TLV320AIC23_USB_CLK_ON;

		tlv320aic23_write(codec, TLV320AIC23_SRATE, data);

		switch (params_format(params)) {
		case SNDRV_PCM_FORMAT_S16_LE:
		break;
		case SNDRV_PCM_FORMAT_S20_3LE:
		iface_reg \|= (0x01 << 2);
		break;
		case SNDRV_PCM_FORMAT_S24_LE:
		iface_reg \|= (0x02 << 2);
		break;
		case SNDRV_PCM_FORMAT_S32_LE:
		iface_reg \|= (0x03 << 2);
		break;
		}
		tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);

		return 0;
		}

		static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream)
		{
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_device *socdev = rtd->socdev;
		struct snd_soc_codec *codec = socdev->codec;

		/* set active */
		tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001);

		return 0;
		}

		static void tlv320aic23_shutdown(struct snd_pcm_substream *substream)
		{
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_device *socdev = rtd->socdev;
		struct snd_soc_codec *codec = socdev->codec;

		/* deactivate */
		if (!codec->active) {
		udelay(50);
		tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
		}
		}

		static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
		{
		struct snd_soc_codec *codec = dai->codec;
		u16 reg;

		reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT);
		if (mute)
		reg \|= TLV320AIC23_DACM_MUTE;

		else
		reg &= ~TLV320AIC23_DACM_MUTE;

		tlv320aic23_write(codec, TLV320AIC23_DIGT, reg);

		return 0;
		}

		static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
		{
		struct snd_soc_codec *codec = codec_dai->codec;
		u16 iface_reg;

		iface_reg =
		tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03);

		/* set master/slave audio interface */
		switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
		case SND_SOC_DAIFMT_CBM_CFM:
		iface_reg \|= TLV320AIC23_MS_MASTER;
		break;
		case SND_SOC_DAIFMT_CBS_CFS:
		break;
		default:
		return -EINVAL;

		}

		/* interface format */
		switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
		case SND_SOC_DAIFMT_I2S:
		iface_reg \|= TLV320AIC23_FOR_I2S;
		break;
		case SND_SOC_DAIFMT_DSP_A:
		iface_reg \|= TLV320AIC23_FOR_DSP;
		break;
		case SND_SOC_DAIFMT_RIGHT_J:
		break;
		case SND_SOC_DAIFMT_LEFT_J:
		iface_reg \|= TLV320AIC23_FOR_LJUST;
		break;
		default:
		return -EINVAL;

		}

		tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);

		return 0;
		}

		static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
		int clk_id, unsigned int freq, int dir)
		{
		struct snd_soc_codec *codec = codec_dai->codec;

		switch (freq) {
		case 12000000:
		return 0;
		}
		return -EINVAL;
		}

		static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
		enum snd_soc_bias_level level)
		{
		u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f;

		switch (level) {
		case SND_SOC_BIAS_ON:
		/* vref/mid, osc on, dac unmute */
		tlv320aic23_write(codec, TLV320AIC23_PWR, reg);
		break;
		case SND_SOC_BIAS_PREPARE:
		break;
		case SND_SOC_BIAS_STANDBY:
		/* everything off except vref/vmid, */
		tlv320aic23_write(codec, TLV320AIC23_PWR, reg \| 0x0040);
		break;
		case SND_SOC_BIAS_OFF:
		/* everything off, dac mute, inactive */
		tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
		tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff);
		break;
		}
		codec->bias_level = level;
		return 0;
		}

		#define AIC23_RATES SNDRV_PCM_RATE_8000_96000
		#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S20_3LE \| \
		SNDRV_PCM_FMTBIT_S24_3LE \| SNDRV_PCM_FMTBIT_S32_LE)

		struct snd_soc_dai tlv320aic23_dai = {
		.name = "tlv320aic23",
		.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = AIC23_RATES,
		.formats = AIC23_FORMATS,},
		.capture = {
		.stream_name = "Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = AIC23_RATES,
		.formats = AIC23_FORMATS,},
		.ops = {
		.prepare = tlv320aic23_pcm_prepare,
		.hw_params = tlv320aic23_hw_params,
		.shutdown = tlv320aic23_shutdown,
		},
		.dai_ops = {
		.digital_mute = tlv320aic23_mute,
		.set_fmt = tlv320aic23_set_dai_fmt,
		.set_sysclk = tlv320aic23_set_dai_sysclk,
		}
		};
		EXPORT_SYMBOL_GPL(tlv320aic23_dai);

		static int tlv320aic23_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;

		tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
		tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);

		return 0;
		}

		static int tlv320aic23_resume(struct platform_device *pdev)
		{
		struct snd_soc_device *socdev = platform_get_drvdata(pdev);
		struct snd_soc_codec *codec = socdev->codec;
		int i;
		u16 reg;

		/* Sync reg_cache with the hardware */
		for (reg = 0; reg < ARRAY_SIZE(tlv320aic23_reg); i++) {
		u16 val = tlv320aic23_read_reg_cache(codec, reg);
		tlv320aic23_write(codec, reg, val);
		}

		tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
		tlv320aic23_set_bias_level(codec, codec->suspend_bias_level);

		return 0;
		}

		/*
		* initialise the AIC23 driver
		* register the mixer and dsp interfaces with the kernel
		*/
		static int tlv320aic23_init(struct snd_soc_device *socdev)
		{
		struct snd_soc_codec *codec = socdev->codec;
		int ret = 0;
		u16 reg;

		codec->name = "tlv320aic23";
		codec->owner = THIS_MODULE;
		codec->read = tlv320aic23_read_reg_cache;
		codec->write = tlv320aic23_write;
		codec->set_bias_level = tlv320aic23_set_bias_level;
		codec->dai = &tlv320aic23_dai;
		codec->num_dai = 1;
		codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg);
		codec->reg_cache =
		kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL);
		if (codec->reg_cache == NULL)
		return -ENOMEM;

		/* Reset codec */
		tlv320aic23_write(codec, TLV320AIC23_RESET, 0);

		/* register pcms */
		ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
		if (ret < 0) {
		printk(KERN_ERR "tlv320aic23: failed to create pcms\n");
		goto pcm_err;
		}

		/* power on device */
		tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

		tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);

		/* Unmute input */
		reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL);
		tlv320aic23_write(codec, TLV320AIC23_LINVOL,
		(reg & (~TLV320AIC23_LIM_MUTED)) \|
		(TLV320AIC23_LRS_ENABLED));

		reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL);
		tlv320aic23_write(codec, TLV320AIC23_RINVOL,
		(reg & (~TLV320AIC23_LIM_MUTED)) \|
		TLV320AIC23_LRS_ENABLED);

		reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG);
		tlv320aic23_write(codec, TLV320AIC23_ANLG,
		(reg) & (~TLV320AIC23_BYPASS_ON) &
		(~TLV320AIC23_MICM_MUTED));

		/* Default output volume */
		tlv320aic23_write(codec, TLV320AIC23_LCHNVOL,
		TLV320AIC23_DEFAULT_OUT_VOL &
		TLV320AIC23_OUT_VOL_MASK);
		tlv320aic23_write(codec, TLV320AIC23_RCHNVOL,
		TLV320AIC23_DEFAULT_OUT_VOL &
		TLV320AIC23_OUT_VOL_MASK);

		tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1);

		tlv320aic23_add_controls(codec);
		tlv320aic23_add_widgets(codec);
		ret = snd_soc_register_card(socdev);
		if (ret < 0) {
		printk(KERN_ERR "tlv320aic23: 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 *tlv320aic23_socdev;

		#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
		/*
		* If the i2c layer weren't so broken, we could pass this kind of data
		* around
		*/
		static int tlv320aic23_codec_probe(struct i2c_client *i2c,
		const struct i2c_device_id *i2c_id)
		{
		struct snd_soc_device *socdev = tlv320aic23_socdev;
		struct snd_soc_codec *codec = socdev->codec;
		int ret;

		if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return -EINVAL;

		i2c_set_clientdata(i2c, codec);
		codec->control_data = i2c;

		ret = tlv320aic23_init(socdev);
		if (ret < 0) {
		printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n");
		goto err;
		}
		return ret;

		err:
		kfree(codec);
		kfree(i2c);
		return ret;
		}
		static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
		{
		put_device(&i2c->dev);
		return 0;
		}

		static const struct i2c_device_id tlv320aic23_id[] = {
		{"tlv320aic23", 0},
		{}
		};

		MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);

		static struct i2c_driver tlv320aic23_i2c_driver = {
		.driver = {
		.name = "tlv320aic23",
		},
		.probe = tlv320aic23_codec_probe,
		.remove = __exit_p(tlv320aic23_i2c_remove),
		.id_table = tlv320aic23_id,
		};

		#endif

		static int tlv320aic23_probe(struct platform_device *pdev)
		{
		struct snd_soc_device *socdev = platform_get_drvdata(pdev);
		struct snd_soc_codec *codec;
		int ret = 0;

		printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION);

		codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
		if (codec == NULL)
		return -ENOMEM;

		socdev->codec = codec;
		mutex_init(&codec->mutex);
		INIT_LIST_HEAD(&codec->dapm_widgets);
		INIT_LIST_HEAD(&codec->dapm_paths);

		tlv320aic23_socdev = socdev;
		#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
		codec->hw_write = (hw_write_t) i2c_smbus_write_byte_data;
		codec->hw_read = NULL;
		ret = i2c_add_driver(&tlv320aic23_i2c_driver);
		if (ret != 0)
		printk(KERN_ERR "can't add i2c driver");
		#endif
		return ret;
		}

		static int tlv320aic23_remove(struct platform_device *pdev)
		{
		struct snd_soc_device *socdev = platform_get_drvdata(pdev);
		struct snd_soc_codec *codec = socdev->codec;

		if (codec->control_data)
		tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);

		snd_soc_free_pcms(socdev);
		snd_soc_dapm_free(socdev);
		#if defined(CONFIG_I2C) \|\| defined(CONFIG_I2C_MODULE)
		i2c_del_driver(&tlv320aic23_i2c_driver);
		#endif
		kfree(codec->reg_cache);
		kfree(codec);

		return 0;
		}
		struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = {
		.probe = tlv320aic23_probe,
		.remove = tlv320aic23_remove,
		.suspend = tlv320aic23_suspend,
		.resume = tlv320aic23_resume,
		};
		EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23);

		MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
		MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
		MODULE_LICENSE("GPL");

sound/soc/codecs/tlv320aic23.h

0 → 100644

+122 −0

Original line number	Diff line number	Diff line
		/*
		* ALSA SoC TLV320AIC23 codec driver
		*
		* Author: Arun KS, <arunks@mistralsolutions.com>
		* Copyright: (C) 2008 Mistral Solutions Pvt Ltd
		*
		* 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 _TLV320AIC23_H
		#define _TLV320AIC23_H

		/* Codec TLV320AIC23 */
		#define TLV320AIC23_LINVOL 0x00
		#define TLV320AIC23_RINVOL 0x01
		#define TLV320AIC23_LCHNVOL 0x02
		#define TLV320AIC23_RCHNVOL 0x03
		#define TLV320AIC23_ANLG 0x04
		#define TLV320AIC23_DIGT 0x05
		#define TLV320AIC23_PWR 0x06
		#define TLV320AIC23_DIGT_FMT 0x07
		#define TLV320AIC23_SRATE 0x08
		#define TLV320AIC23_ACTIVE 0x09
		#define TLV320AIC23_RESET 0x0F

		/* Left (right) line input volume control register */
		#define TLV320AIC23_LRS_ENABLED 0x0100
		#define TLV320AIC23_LIM_MUTED 0x0080
		#define TLV320AIC23_LIV_DEFAULT 0x0017
		#define TLV320AIC23_LIV_MAX 0x001f
		#define TLV320AIC23_LIV_MIN 0x0000

		/* Left (right) channel headphone volume control register */
		#define TLV320AIC23_LZC_ON 0x0080
		#define TLV320AIC23_LHV_DEFAULT 0x0079
		#define TLV320AIC23_LHV_MAX 0x007f
		#define TLV320AIC23_LHV_MIN 0x0000

		/* Analog audio path control register */
		#define TLV320AIC23_STA_REG(x) ((x)<<6)
		#define TLV320AIC23_STE_ENABLED 0x0020
		#define TLV320AIC23_DAC_SELECTED 0x0010
		#define TLV320AIC23_BYPASS_ON 0x0008
		#define TLV320AIC23_INSEL_MIC 0x0004
		#define TLV320AIC23_MICM_MUTED 0x0002
		#define TLV320AIC23_MICB_20DB 0x0001

		/* Digital audio path control register */
		#define TLV320AIC23_DACM_MUTE 0x0008
		#define TLV320AIC23_DEEMP_32K 0x0002
		#define TLV320AIC23_DEEMP_44K 0x0004
		#define TLV320AIC23_DEEMP_48K 0x0006
		#define TLV320AIC23_ADCHP_ON 0x0001

		/* Power control down register */
		#define TLV320AIC23_DEVICE_PWR_OFF 0x0080
		#define TLV320AIC23_CLK_OFF 0x0040
		#define TLV320AIC23_OSC_OFF 0x0020
		#define TLV320AIC23_OUT_OFF 0x0010
		#define TLV320AIC23_DAC_OFF 0x0008
		#define TLV320AIC23_ADC_OFF 0x0004
		#define TLV320AIC23_MIC_OFF 0x0002
		#define TLV320AIC23_LINE_OFF 0x0001

		/* Digital audio interface register */
		#define TLV320AIC23_MS_MASTER 0x0040
		#define TLV320AIC23_LRSWAP_ON 0x0020
		#define TLV320AIC23_LRP_ON 0x0010
		#define TLV320AIC23_IWL_16 0x0000
		#define TLV320AIC23_IWL_20 0x0004
		#define TLV320AIC23_IWL_24 0x0008
		#define TLV320AIC23_IWL_32 0x000C
		#define TLV320AIC23_FOR_I2S 0x0002
		#define TLV320AIC23_FOR_DSP 0x0003
		#define TLV320AIC23_FOR_LJUST 0x0001

		/* Sample rate control register */
		#define TLV320AIC23_CLKOUT_HALF 0x0080
		#define TLV320AIC23_CLKIN_HALF 0x0040
		#define TLV320AIC23_BOSR_384fs 0x0002 /* BOSR_272fs in USB mode */
		#define TLV320AIC23_USB_CLK_ON 0x0001
		#define TLV320AIC23_SR_MASK 0xf
		#define TLV320AIC23_CLKOUT_SHIFT 7
		#define TLV320AIC23_CLKIN_SHIFT 6
		#define TLV320AIC23_SR_SHIFT 2
		#define TLV320AIC23_BOSR_SHIFT 1

		/* Digital interface register */
		#define TLV320AIC23_ACT_ON 0x0001

		/*
		* AUDIO related MACROS
		*/

		#define TLV320AIC23_DEFAULT_OUT_VOL 0x70
		#define TLV320AIC23_DEFAULT_IN_VOLUME 0x10

		#define TLV320AIC23_OUT_VOL_MIN TLV320AIC23_LHV_MIN
		#define TLV320AIC23_OUT_VOL_MAX TLV320AIC23_LHV_MAX
		#define TLV320AIC23_OUT_VO_RANGE (TLV320AIC23_OUT_VOL_MAX - \
		TLV320AIC23_OUT_VOL_MIN)
		#define TLV320AIC23_OUT_VOL_MASK TLV320AIC23_OUT_VOL_MAX

		#define TLV320AIC23_IN_VOL_MIN TLV320AIC23_LIV_MIN
		#define TLV320AIC23_IN_VOL_MAX TLV320AIC23_LIV_MAX
		#define TLV320AIC23_IN_VOL_RANGE (TLV320AIC23_IN_VOL_MAX - \
		TLV320AIC23_IN_VOL_MIN)
		#define TLV320AIC23_IN_VOL_MASK TLV320AIC23_IN_VOL_MAX

		#define TLV320AIC23_SIDETONE_MASK 0x1c0
		#define TLV320AIC23_SIDETONE_0 0x100
		#define TLV320AIC23_SIDETONE_6 0x000
		#define TLV320AIC23_SIDETONE_9 0x040
		#define TLV320AIC23_SIDETONE_12 0x080
		#define TLV320AIC23_SIDETONE_18 0x0c0

		extern struct snd_soc_dai tlv320aic23_dai;
		extern struct snd_soc_codec_device soc_codec_dev_tlv320aic23;

		#endif /* _TLV320AIC23_H */