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TLV320AIC3254:TLV320AIC3254 driver problem

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Part Number: TLV320AIC3254

This side of the main control is RK3288,I2C,I2S is connected, the sound card is also registered. Use EVM board and I2C to write configuration, there is sound out, unplug it. Prove that the hardware is connected, the main problem is driving here.

 

The following is the schematic and code, which of you have done this chip, please give some advice?

/*
 * linux/sound/soc/codecs/tlv320aic32x4.c
 *
 * Copyright 2011 Vista Silicon S.L.
 *
 * Author: Javier Martin <javier.martin@vista-silicon.com>
 *
 * Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/i2c.h>
#include <linux/cdev.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/regulator/consumer.h>

#include <sound/tlv320aic32x4.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 <sound/tlv.h>

#include "tlv320aic32x4.h"

struct aic32x4_rate_divs {
	u32 mclk;
	u32 rate;
	u8 p_val;
	u8 pll_j;
	u16 pll_d;
	u16 dosr;
	u8 ndac;
	u8 mdac;
	u8 aosr;
	u8 nadc;
	u8 madc;
	u8 blck_N;
};

struct aic32x4_priv {
	struct regmap *regmap;
	u32 sysclk;
	u32 power_cfg;
	u32 micpga_routing;
	bool swapdacs;
	int rstn_gpio;
	struct clk *mclk;

	struct regulator *supply_ldo;
	struct regulator *supply_iov;
	struct regulator *supply_dv;
	struct regulator *supply_av;
};

/* 0dB min, 0.5dB steps */
static DECLARE_TLV_DB_SCALE(tlv_step_0_5, 0, 50, 0);
/* -63.5dB min, 0.5dB steps */
static DECLARE_TLV_DB_SCALE(tlv_pcm, -6350, 50, 0);
/* -6dB min, 1dB steps */
static DECLARE_TLV_DB_SCALE(tlv_driver_gain, -600, 100, 0);
/* -12dB min, 0.5dB steps */
static DECLARE_TLV_DB_SCALE(tlv_adc_vol, -1200, 50, 0);

static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
	SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
			AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm),
	SOC_DOUBLE_R_S_TLV("HP Driver Gain Volume", AIC32X4_HPLGAIN,
			AIC32X4_HPRGAIN, 0, -0x6, 0x1d, 5, 0,
			tlv_driver_gain),
	SOC_DOUBLE_R_S_TLV("LO Driver Gain Volume", AIC32X4_LOLGAIN,
			AIC32X4_LORGAIN, 0, -0x6, 0x1d, 5, 0,
			tlv_driver_gain),
	SOC_DOUBLE_R("HP DAC Playback Switch", AIC32X4_HPLGAIN,
			AIC32X4_HPRGAIN, 6, 0x01, 1),
	SOC_DOUBLE_R("LO DAC Playback Switch", AIC32X4_LOLGAIN,
			AIC32X4_LORGAIN, 6, 0x01, 1),
	SOC_DOUBLE_R("Mic PGA Switch", AIC32X4_LMICPGAVOL,
			AIC32X4_RMICPGAVOL, 7, 0x01, 1),

	SOC_SINGLE("ADCFGA Left Mute Switch", AIC32X4_ADCFGA, 7, 1, 0),
	SOC_SINGLE("ADCFGA Right Mute Switch", AIC32X4_ADCFGA, 3, 1, 0),

	SOC_DOUBLE_R_S_TLV("ADC Level Volume", AIC32X4_LADCVOL,
			AIC32X4_RADCVOL, 0, -0x18, 0x28, 6, 0, tlv_adc_vol),
	SOC_DOUBLE_R_TLV("PGA Level Volume", AIC32X4_LMICPGAVOL,
			AIC32X4_RMICPGAVOL, 0, 0x5f, 0, tlv_step_0_5),

	SOC_SINGLE("Auto-mute Switch", AIC32X4_DACMUTE, 4, 7, 0),

	SOC_SINGLE("AGC Left Switch", AIC32X4_LAGC1, 7, 1, 0),
	SOC_SINGLE("AGC Right Switch", AIC32X4_RAGC1, 7, 1, 0),
	SOC_DOUBLE_R("AGC Target Level", AIC32X4_LAGC1, AIC32X4_RAGC1,
			4, 0x07, 0),
	SOC_DOUBLE_R("AGC Gain Hysteresis", AIC32X4_LAGC1, AIC32X4_RAGC1,
			0, 0x03, 0),
	SOC_DOUBLE_R("AGC Hysteresis", AIC32X4_LAGC2, AIC32X4_RAGC2,
			6, 0x03, 0),
	SOC_DOUBLE_R("AGC Noise Threshold", AIC32X4_LAGC2, AIC32X4_RAGC2,
			1, 0x1F, 0),
	SOC_DOUBLE_R("AGC Max PGA", AIC32X4_LAGC3, AIC32X4_RAGC3,
			0, 0x7F, 0),
	SOC_DOUBLE_R("AGC Attack Time", AIC32X4_LAGC4, AIC32X4_RAGC4,
			3, 0x1F, 0),
	SOC_DOUBLE_R("AGC Decay Time", AIC32X4_LAGC5, AIC32X4_RAGC5,
			3, 0x1F, 0),
	SOC_DOUBLE_R("AGC Noise Debounce", AIC32X4_LAGC6, AIC32X4_RAGC6,
			0, 0x1F, 0),
	SOC_DOUBLE_R("AGC Signal Debounce", AIC32X4_LAGC7, AIC32X4_RAGC7,
			0, 0x0F, 0),
};

static const struct aic32x4_rate_divs aic32x4_divs[] = {
	/*mclk;rate;p_val;pll_j;pll_d;dosr;ndac;mdac;aosr;nadc;madc;blck_N;*/
	/* 8k rate */
	{AIC32X4_FREQ_12000000, 8000, 1, 7, 6800, 768, 5, 3, 128, 5, 18, 24},
	{AIC32X4_FREQ_24000000, 8000, 2, 7, 6800, 768, 15, 1, 64, 45, 4, 24},
	{AIC32X4_FREQ_25000000, 8000, 2, 7, 3728, 768, 15, 1, 64, 45, 4, 24},
	{AIC32X4_FREQ_11289600, 8000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_12288000, 8000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},

	/* 11.025k rate */
	{AIC32X4_FREQ_12000000, 11025, 1, 7, 5264, 512, 8, 2, 128, 8, 8, 16},
	{AIC32X4_FREQ_24000000, 11025, 2, 7, 5264, 512, 16, 1, 64, 32, 4, 16},
	{AIC32X4_FREQ_11289600, 11025, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_12288000, 11025, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},

	/* 16k rate */
	{AIC32X4_FREQ_12000000, 16000, 1, 7, 6800, 384, 5, 3, 128, 5, 9, 12},
	{AIC32X4_FREQ_24000000, 16000, 2, 7, 6800, 384, 15, 1, 64, 18, 5, 12},
	{AIC32X4_FREQ_25000000, 16000, 2, 7, 3728, 384, 15, 1, 64, 18, 5, 12},
	{AIC32X4_FREQ_11289600, 16000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_12288000, 16000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},

	/* 22.05k rate */
	{AIC32X4_FREQ_12000000, 22050, 1, 7, 5264, 256, 4, 4, 128, 4, 8, 8},
	{AIC32X4_FREQ_24000000, 22050, 2, 7, 5264, 256, 16, 1, 64, 16, 4, 8},
	{AIC32X4_FREQ_25000000, 22050, 2, 7, 2253, 256, 16, 1, 64, 16, 4, 8},
	{AIC32X4_FREQ_11289600, 22000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_12288000, 22000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},

	/* 32k rate */
	{AIC32X4_FREQ_12000000, 32000, 1, 7, 1680, 192, 2, 7, 64, 2, 21, 6},
	{AIC32X4_FREQ_24000000, 32000, 2, 7, 1680, 192, 7, 2, 64, 7, 6, 6},
	{AIC32X4_FREQ_11289600, 32000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_12288000, 32000, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},

	/* 44.1k rate */
	{AIC32X4_FREQ_12000000, 44100, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_24000000, 44100, 2, 7, 5264, 128, 8, 2, 64, 8, 4, 4},
	{AIC32X4_FREQ_25000000, 44100, 2, 7, 2253, 128, 8, 2, 64, 8, 4, 4},
	{AIC32X4_FREQ_11289600, 44100, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_12288000, 44100, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},

	/* 48k rate */
	{AIC32X4_FREQ_12000000, 48000, 1, 8, 1920, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_24000000, 48000, 2, 8, 1920, 128, 8, 2, 64, 8, 4, 4},
	{AIC32X4_FREQ_25000000, 48000, 2, 7, 8643, 128, 8, 2, 64, 8, 4, 4},
	{AIC32X4_FREQ_11289600, 48000, 1, 8, 5264, 128, 2, 8, 128, 2, 8, 4},
	{AIC32X4_FREQ_12288000, 48000, 1, 8, 5264, 128, 2, 8, 128, 2, 8, 4},

};

static const struct snd_kcontrol_new hpl_output_mixer_controls[] = {
	SOC_DAPM_SINGLE("L_DAC Switch", AIC32X4_HPLROUTE, 3, 1, 0),
	SOC_DAPM_SINGLE("IN1_L Switch", AIC32X4_HPLROUTE, 2, 1, 0),
};

static const struct snd_kcontrol_new hpr_output_mixer_controls[] = {
	SOC_DAPM_SINGLE("R_DAC Switch", AIC32X4_HPRROUTE, 3, 1, 0),
	SOC_DAPM_SINGLE("IN1_R Switch", AIC32X4_HPRROUTE, 2, 1, 0),
};

static const struct snd_kcontrol_new lol_output_mixer_controls[] = {
	SOC_DAPM_SINGLE("L_DAC Switch", AIC32X4_LOLROUTE, 3, 1, 0),
};

static const struct snd_kcontrol_new lor_output_mixer_controls[] = {
	SOC_DAPM_SINGLE("R_DAC Switch", AIC32X4_LORROUTE, 3, 1, 0),
};

static const struct snd_kcontrol_new left_input_mixer_controls[] = {
	SOC_DAPM_SINGLE("IN1_L P Switch", AIC32X4_LMICPGAPIN, 6, 1, 0),
	SOC_DAPM_SINGLE("IN2_L P Switch", AIC32X4_LMICPGAPIN, 4, 1, 0),
	SOC_DAPM_SINGLE("IN3_L P Switch", AIC32X4_LMICPGAPIN, 2, 1, 0),
};

static const struct snd_kcontrol_new right_input_mixer_controls[] = {
	SOC_DAPM_SINGLE("IN1_R P Switch", AIC32X4_RMICPGAPIN, 6, 1, 0),
	SOC_DAPM_SINGLE("IN2_R P Switch", AIC32X4_RMICPGAPIN, 4, 1, 0),
	SOC_DAPM_SINGLE("IN3_R P Switch", AIC32X4_RMICPGAPIN, 2, 1, 0),
};

static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", AIC32X4_DACSETUP, 7, 0),
	SND_SOC_DAPM_MIXER("HPL Output Mixer", SND_SOC_NOPM, 0, 0,
			   &hpl_output_mixer_controls[0],
			   ARRAY_SIZE(hpl_output_mixer_controls)),
	SND_SOC_DAPM_PGA("HPL Power", AIC32X4_OUTPWRCTL, 5, 0, NULL, 0),

	SND_SOC_DAPM_MIXER("LOL Output Mixer", SND_SOC_NOPM, 0, 0,
			   &lol_output_mixer_controls[0],
			   ARRAY_SIZE(lol_output_mixer_controls)),
	SND_SOC_DAPM_PGA("LOL Power", AIC32X4_OUTPWRCTL, 3, 0, NULL, 0),

	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", AIC32X4_DACSETUP, 6, 0),
	SND_SOC_DAPM_MIXER("HPR Output Mixer", SND_SOC_NOPM, 0, 0,
			   &hpr_output_mixer_controls[0],
			   ARRAY_SIZE(hpr_output_mixer_controls)),
	SND_SOC_DAPM_PGA("HPR Power", AIC32X4_OUTPWRCTL, 4, 0, NULL, 0),
	SND_SOC_DAPM_MIXER("LOR Output Mixer", SND_SOC_NOPM, 0, 0,
			   &lor_output_mixer_controls[0],
			   ARRAY_SIZE(lor_output_mixer_controls)),
	SND_SOC_DAPM_PGA("LOR Power", AIC32X4_OUTPWRCTL, 2, 0, NULL, 0),
	SND_SOC_DAPM_MIXER("Left Input Mixer", SND_SOC_NOPM, 0, 0,
			   &left_input_mixer_controls[0],
			   ARRAY_SIZE(left_input_mixer_controls)),
	SND_SOC_DAPM_MIXER("Right Input Mixer", SND_SOC_NOPM, 0, 0,
			   &right_input_mixer_controls[0],
			   ARRAY_SIZE(right_input_mixer_controls)),
	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", AIC32X4_ADCSETUP, 7, 0),
	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", AIC32X4_ADCSETUP, 6, 0),
	SND_SOC_DAPM_MICBIAS("Mic Bias", AIC32X4_MICBIAS, 6, 0),

	SND_SOC_DAPM_OUTPUT("HPL"),
	SND_SOC_DAPM_OUTPUT("HPR"),
	SND_SOC_DAPM_OUTPUT("LOL"),
	SND_SOC_DAPM_OUTPUT("LOR"),
	SND_SOC_DAPM_INPUT("IN1_L"),
	SND_SOC_DAPM_INPUT("IN1_R"),
	SND_SOC_DAPM_INPUT("IN2_L"),
	SND_SOC_DAPM_INPUT("IN2_R"),
	SND_SOC_DAPM_INPUT("IN3_L"),
	SND_SOC_DAPM_INPUT("IN3_R"),
};

static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
	/* Left Output */
	{"HPL Output Mixer", "L_DAC Switch", "Left DAC"},
	{"HPL Output Mixer", "IN1_L Switch", "IN1_L"},

	{"HPL Power", NULL, "HPL Output Mixer"},
	{"HPL", NULL, "HPL Power"},

	{"LOL Output Mixer", "L_DAC Switch", "Left DAC"},

	{"LOL Power", NULL, "LOL Output Mixer"},
	{"LOL", NULL, "LOL Power"},

	/* Right Output */
	{"HPR Output Mixer", "R_DAC Switch", "Right DAC"},
	{"HPR Output Mixer", "IN1_R Switch", "IN1_R"},

	{"HPR Power", NULL, "HPR Output Mixer"},
	{"HPR", NULL, "HPR Power"},

	{"LOR Output Mixer", "R_DAC Switch", "Right DAC"},

	{"LOR Power", NULL, "LOR Output Mixer"},
	{"LOR", NULL, "LOR Power"},

	/* Left input */
	{"Left Input Mixer", "IN1_L P Switch", "IN1_L"},
	{"Left Input Mixer", "IN2_L P Switch", "IN2_L"},
	{"Left Input Mixer", "IN3_L P Switch", "IN3_L"},

	{"Left ADC", NULL, "Left Input Mixer"},

	/* Right Input */
	{"Right Input Mixer", "IN1_R P Switch", "IN1_R"},
	{"Right Input Mixer", "IN2_R P Switch", "IN2_R"},
	{"Right Input Mixer", "IN3_R P Switch", "IN3_R"},

	{"Right ADC", NULL, "Right Input Mixer"},
};

static const struct regmap_range_cfg aic32x4_regmap_pages[] = {
	{
		.selector_reg = 0,
		.selector_mask  = 0xff,
		.window_start = 0,
		.window_len = 128,
		.range_min = 0,
		.range_max = AIC32X4_RMICPGAVOL,
	},
};

static const struct regmap_config aic32x4_regmap = {
	.reg_bits = 8,
	.val_bits = 8,

	.max_register = AIC32X4_RMICPGAVOL,
	.ranges = aic32x4_regmap_pages,
	.num_ranges = ARRAY_SIZE(aic32x4_regmap_pages),
};

static inline int aic32x4_get_divs(int mclk, int rate)
{
	int i;
	
	printk(KERN_ERR "audio mclk is %d \n",mclk);
	printk(KERN_ERR "audio rate is %d \n",rate);

	for (i = 0; i < ARRAY_SIZE(aic32x4_divs); i++) {
		if ((aic32x4_divs[i].rate == rate)
		    && (aic32x4_divs[i].mclk == mclk)) {
			return i;
		}
	}
	printk(KERN_ERR "aic32x4: master clock and sample rate is not supported\n");
	return -EINVAL;
}

static int aic32x4_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;
	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);

	switch (freq) {
	case AIC32X4_FREQ_12000000:
	case AIC32X4_FREQ_24000000:
	case AIC32X4_FREQ_25000000:
	case AIC32X4_FREQ_11289600:
	case AIC32X4_FREQ_12288000:

		aic32x4->sysclk = freq;
		return 0;
	}
	printk(KERN_ERR "aic32x4: invalid frequency to set DAI system clock\n");
	printk(KERN_ERR "audio freq is %d \n",freq);//11289600
	return -EINVAL;
}

static int aic32x4_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u8 iface_reg_1;
	u8 iface_reg_2;
	u8 iface_reg_3;
	printk(KERN_ERR "aic32x4_set_dai_fmt\n");
	iface_reg_1 = snd_soc_read(codec, AIC32X4_IFACE1);
	iface_reg_1 = iface_reg_1 & ~(3 << 6 | 3 << 2);
	iface_reg_2 = snd_soc_read(codec, AIC32X4_IFACE2);
	iface_reg_2 = 0;
	iface_reg_3 = snd_soc_read(codec, AIC32X4_IFACE3);
	iface_reg_3 = iface_reg_3 & ~(1 << 3);

	/* set master/slave audio interface */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		iface_reg_1 |= AIC32X4_BCLKMASTER | AIC32X4_WCLKMASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
		break;
	default:
		printk(KERN_ERR "aic32x4: invalid DAI master/slave interface\n");
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		break;
	case SND_SOC_DAIFMT_DSP_A:
		iface_reg_1 |= (AIC32X4_DSP_MODE << AIC32X4_PLLJ_SHIFT);
		iface_reg_3 |= (1 << 3); /* invert bit clock */
		iface_reg_2 = 0x01; /* add offset 1 */
		break;
	case SND_SOC_DAIFMT_DSP_B:
		iface_reg_1 |= (AIC32X4_DSP_MODE << AIC32X4_PLLJ_SHIFT);
		iface_reg_3 |= (1 << 3); /* invert bit clock */
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		iface_reg_1 |=
			(AIC32X4_RIGHT_JUSTIFIED_MODE << AIC32X4_PLLJ_SHIFT);
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		iface_reg_1 |=
			(AIC32X4_LEFT_JUSTIFIED_MODE << AIC32X4_PLLJ_SHIFT);
		break;
	default:
		printk(KERN_ERR "aic32x4: invalid DAI interface format\n");
		return -EINVAL;
	}

	snd_soc_write(codec, AIC32X4_IFACE1, iface_reg_1);
	snd_soc_write(codec, AIC32X4_IFACE2, iface_reg_2);
	snd_soc_write(codec, AIC32X4_IFACE3, iface_reg_3);

	printk(KERN_ERR "aic32x4_set_dai_fmt\n");
	return 0;
}

static int aic32x4_hw_params(struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *params,
			     struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
	u8 data;
	int i;

	i = aic32x4_get_divs(aic32x4->sysclk, params_rate(params));
	if (i < 0) {
		printk(KERN_ERR "aic32x4: sampling rate not supported\n");
		return i;
	}

	/* Use PLL as CODEC_CLKIN and DAC_MOD_CLK as BDIV_CLKIN */
	snd_soc_write(codec, AIC32X4_CLKMUX, AIC32X4_PLLCLKIN);
	snd_soc_write(codec, AIC32X4_IFACE3, AIC32X4_DACMOD2BCLK);

	/* We will fix R value to 1 and will make P & J=K.D as varialble */
	data = snd_soc_read(codec, AIC32X4_PLLPR);
	data &= ~(7 << 4);
	snd_soc_write(codec, AIC32X4_PLLPR,
		      (data | (aic32x4_divs[i].p_val << 4) | 0x01));

	snd_soc_write(codec, AIC32X4_PLLJ, aic32x4_divs[i].pll_j);

	snd_soc_write(codec, AIC32X4_PLLDMSB, (aic32x4_divs[i].pll_d >> 8));
	snd_soc_write(codec, AIC32X4_PLLDLSB,
		      (aic32x4_divs[i].pll_d & 0xff));

	/* NDAC divider value */
	data = snd_soc_read(codec, AIC32X4_NDAC);
	data &= ~(0x7f);
	snd_soc_write(codec, AIC32X4_NDAC, data | aic32x4_divs[i].ndac);

	/* MDAC divider value */
	data = snd_soc_read(codec, AIC32X4_MDAC);
	data &= ~(0x7f);
	snd_soc_write(codec, AIC32X4_MDAC, data | aic32x4_divs[i].mdac);

	/* DOSR MSB & LSB values */
	snd_soc_write(codec, AIC32X4_DOSRMSB, aic32x4_divs[i].dosr >> 8);
	snd_soc_write(codec, AIC32X4_DOSRLSB,
		      (aic32x4_divs[i].dosr & 0xff));

	/* NADC divider value */
	data = snd_soc_read(codec, AIC32X4_NADC);
	data &= ~(0x7f);
	snd_soc_write(codec, AIC32X4_NADC, data | aic32x4_divs[i].nadc);

	/* MADC divider value */
	data = snd_soc_read(codec, AIC32X4_MADC);
	data &= ~(0x7f);
	snd_soc_write(codec, AIC32X4_MADC, data | aic32x4_divs[i].madc);

	/* AOSR value */
	snd_soc_write(codec, AIC32X4_AOSR, aic32x4_divs[i].aosr);

	/* BCLK N divider */
	data = snd_soc_read(codec, AIC32X4_BCLKN);
	data &= ~(0x7f);
	snd_soc_write(codec, AIC32X4_BCLKN, data | aic32x4_divs[i].blck_N);

	data = snd_soc_read(codec, AIC32X4_IFACE1);
	data = data & ~(3 << 4);
	switch (params_width(params)) {
	case 16:
		break;
	case 20:
		data |= (AIC32X4_WORD_LEN_20BITS << AIC32X4_DOSRMSB_SHIFT);
		break;
	case 24:
		data |= (AIC32X4_WORD_LEN_24BITS << AIC32X4_DOSRMSB_SHIFT);
		break;
	case 32:
		data |= (AIC32X4_WORD_LEN_32BITS << AIC32X4_DOSRMSB_SHIFT);
		break;
	}
	snd_soc_write(codec, AIC32X4_IFACE1, data);

	if (params_channels(params) == 1) {
		data = AIC32X4_RDAC2LCHN | AIC32X4_LDAC2LCHN;
	} else {
		if (aic32x4->swapdacs)
			data = AIC32X4_RDAC2LCHN | AIC32X4_LDAC2RCHN;
		else
			data = AIC32X4_LDAC2LCHN | AIC32X4_RDAC2RCHN;
	}
	snd_soc_update_bits(codec, AIC32X4_DACSETUP, AIC32X4_DAC_CHAN_MASK,
			data);
	printk(KERN_ERR "data1 is %x \n",data);
	// snd_soc_write(codec, AIC32X4_DACSETUP, 0xD6);
	//printk(KERN_ERR "data2 is %d \n",data);

	printk(KERN_ERR "aic32x4_hw_params\n");
	return 0;
}

static int aic32x4_mute(struct snd_soc_dai *dai, int mute)
{
	struct snd_soc_codec *codec = dai->codec;
	u8 dac_reg;
	printk(KERN_ERR "aic32x4_mute, %d\n", mute);
	dac_reg = snd_soc_read(codec, AIC32X4_DACMUTE) & ~AIC32X4_MUTEON;
	if (mute)
		snd_soc_write(codec, AIC32X4_DACMUTE, dac_reg | AIC32X4_MUTEON);
	else
		snd_soc_write(codec, AIC32X4_DACMUTE, dac_reg);

	return 0;
}

static int aic32x4_set_bias_level(struct snd_soc_codec *codec,
				  enum snd_soc_bias_level level)
{
	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
	int ret;

	switch (level) {
	case SND_SOC_BIAS_ON:
		/* Switch on master clock */
		ret = clk_prepare_enable(aic32x4->mclk);
		if (ret) {
			dev_err(codec->dev, "Failed to enable master clock\n");
			return ret;
		}

		/* Switch on PLL */
		snd_soc_update_bits(codec, AIC32X4_PLLPR,
				    AIC32X4_PLLEN, AIC32X4_PLLEN);

		/* Switch on NDAC Divider */
		snd_soc_update_bits(codec, AIC32X4_NDAC,
				    AIC32X4_NDACEN, AIC32X4_NDACEN);

		/* Switch on MDAC Divider */
		snd_soc_update_bits(codec, AIC32X4_MDAC,
				    AIC32X4_MDACEN, AIC32X4_MDACEN);

		/* Switch on NADC Divider */
		snd_soc_update_bits(codec, AIC32X4_NADC,
				    AIC32X4_NADCEN, AIC32X4_NADCEN);

		/* Switch on MADC Divider */
		snd_soc_update_bits(codec, AIC32X4_MADC,
				    AIC32X4_MADCEN, AIC32X4_MADCEN);

		/* Switch on BCLK_N Divider */
		snd_soc_update_bits(codec, AIC32X4_BCLKN,
				    AIC32X4_BCLKEN, AIC32X4_BCLKEN);
		break;
	case SND_SOC_BIAS_PREPARE:
		break;
	case SND_SOC_BIAS_STANDBY:
		/* Switch off BCLK_N Divider */
		snd_soc_update_bits(codec, AIC32X4_BCLKN,
				    AIC32X4_BCLKEN, 0);

		/* Switch off MADC Divider */
		snd_soc_update_bits(codec, AIC32X4_MADC,
				    AIC32X4_MADCEN, 0);

		/* Switch off NADC Divider */
		snd_soc_update_bits(codec, AIC32X4_NADC,
				    AIC32X4_NADCEN, 0);

		/* Switch off MDAC Divider */
		snd_soc_update_bits(codec, AIC32X4_MDAC,
				    AIC32X4_MDACEN, 0);

		/* Switch off NDAC Divider */
		snd_soc_update_bits(codec, AIC32X4_NDAC,
				    AIC32X4_NDACEN, 0);

		/* Switch off PLL */
		snd_soc_update_bits(codec, AIC32X4_PLLPR,
				    AIC32X4_PLLEN, 0);

		/* Switch off master clock */
		clk_disable_unprepare(aic32x4->mclk);
		break;
	case SND_SOC_BIAS_OFF:
		break;
	}


	printk(KERN_ERR "aic32x4_set_bias_level\n");
	return 0;
}

#define AIC32X4_RATES	SNDRV_PCM_RATE_8000_48000
#define AIC32X4_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \
			 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)

static const struct snd_soc_dai_ops aic32x4_ops = {
	.hw_params = aic32x4_hw_params,
	.digital_mute = aic32x4_mute,
	.set_fmt = aic32x4_set_dai_fmt,
	.set_sysclk = aic32x4_set_dai_sysclk,
};

static struct snd_soc_dai_driver aic32x4_dai = {
	.name = "tlv320aic32x4-hifi",
	.playback = {
		     .stream_name = "Playback",
		     .channels_min = 1,
		     .channels_max = 2,
		     .rates = AIC32X4_RATES,
		     .formats = AIC32X4_FORMATS,},
	.capture = {
		    .stream_name = "Capture",
		    .channels_min = 1,
		    .channels_max = 2,
		    .rates = AIC32X4_RATES,
		    .formats = AIC32X4_FORMATS,},
	.ops = &aic32x4_ops,
	.symmetric_rates = 1,
};

static int aic32x4_probe(struct snd_soc_codec *codec)
{
	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
	u32 tmp_reg;

	if (gpio_is_valid(aic32x4->rstn_gpio)) {
		ndelay(10);
		gpio_set_value(aic32x4->rstn_gpio, 1);
	}

	snd_soc_write(codec, AIC32X4_RESET, 0x01);

	/* Power platform configuration */
	if (aic32x4->power_cfg & AIC32X4_PWR_MICBIAS_2075_LDOIN) {
		snd_soc_write(codec, AIC32X4_MICBIAS, AIC32X4_MICBIAS_LDOIN |
						      AIC32X4_MICBIAS_2075V);
	}
	if (aic32x4->power_cfg & AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE)
		snd_soc_write(codec, AIC32X4_PWRCFG, AIC32X4_AVDDWEAKDISABLE);

	tmp_reg = (aic32x4->power_cfg & AIC32X4_PWR_AIC32X4_LDO_ENABLE) ?
			AIC32X4_LDOCTLEN : 0;
	snd_soc_write(codec, AIC32X4_LDOCTL, tmp_reg);

	tmp_reg = snd_soc_read(codec, AIC32X4_CMMODE);
	if (aic32x4->power_cfg & AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36)
		tmp_reg |= AIC32X4_LDOIN_18_36;
	if (aic32x4->power_cfg & AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED)
		tmp_reg |= AIC32X4_LDOIN2HP;
	snd_soc_write(codec, AIC32X4_CMMODE, tmp_reg);

	/* Mic PGA routing */
	if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K)
		snd_soc_write(codec, AIC32X4_LMICPGANIN,
				AIC32X4_LMICPGANIN_IN2R_10K);
	else
		snd_soc_write(codec, AIC32X4_LMICPGANIN,
				AIC32X4_LMICPGANIN_CM1L_10K);
	if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K)
		snd_soc_write(codec, AIC32X4_RMICPGANIN,
				AIC32X4_RMICPGANIN_IN1L_10K);
	else
		snd_soc_write(codec, AIC32X4_RMICPGANIN,
				AIC32X4_RMICPGANIN_CM1R_10K);

	/*
	 * Workaround: for an unknown reason, the ADC needs to be powered up
	 * and down for the first capture to work properly. It seems related to
	 * a HW BUG or some kind of behavior not documented in the datasheet.
	 */
	tmp_reg = snd_soc_read(codec, AIC32X4_ADCSETUP);
	snd_soc_write(codec, AIC32X4_ADCSETUP, tmp_reg |
				AIC32X4_LADC_EN | AIC32X4_RADC_EN);
	snd_soc_write(codec, AIC32X4_ADCSETUP, tmp_reg);


	/* beep*/
	snd_soc_write(codec, 0x49, 0xff);
	snd_soc_write(codec, 0x4a, 0xff);
	snd_soc_write(codec, 0x47, 0x80);

		/*from EVM code */
	snd_soc_write(codec, 0x00, 0x00);
	snd_soc_write(codec, 0x01, 0x01);
	snd_soc_write(codec, 0x00, 0x00);
	snd_soc_write(codec, 0x0b, 0x81);
	snd_soc_write(codec, 0x0c, 0x82);
	snd_soc_write(codec, 0x00, 0x00);
	snd_soc_write(codec, 0x3c, 0x08);
	snd_soc_write(codec, 0x00, 0x01);
	snd_soc_write(codec, 0x01, 0x08);
	snd_soc_write(codec, 0x02, 0x00);
	snd_soc_write(codec, 0x47, 0x32);
	snd_soc_write(codec, 0x7b, 0x01);
	snd_soc_write(codec, 0x00, 0x01);
	snd_soc_write(codec, 0x14, 0x25);
	snd_soc_write(codec, 0x0c, 0x08);
	snd_soc_write(codec, 0x0d, 0x08);
	snd_soc_write(codec, 0x0e, 0x08);
	snd_soc_write(codec, 0x0f, 0x08);
	snd_soc_write(codec, 0x09, 0x3c);
	snd_soc_write(codec, 0x10, 0x00);
	snd_soc_write(codec, 0x11, 0x00);
	snd_soc_write(codec, 0x12, 0x00);
	snd_soc_write(codec, 0x13, 0x00);
	snd_soc_write(codec, 0x00, 0x00);
	snd_soc_write(codec, 0x41, 0x00);
	snd_soc_write(codec, 0x42, 0x00);
	snd_soc_write(codec, 0x3f, 0xd6);
	snd_soc_write(codec, 0x40, 0x00);

	printk(KERN_ERR "aic32x4_probe\n");
	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_aic32x4 = {
	.probe = aic32x4_probe,
	.set_bias_level = aic32x4_set_bias_level,
	.suspend_bias_off = true,

	.controls = aic32x4_snd_controls,
	.num_controls = ARRAY_SIZE(aic32x4_snd_controls),
	.dapm_widgets = aic32x4_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
	.dapm_routes = aic32x4_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
};

static int aic32x4_parse_dt(struct aic32x4_priv *aic32x4,
		struct device_node *np)
{
	aic32x4->swapdacs = false;
	aic32x4->micpga_routing = 0;
	aic32x4->rstn_gpio = of_get_named_gpio(np, "reset-gpios", 0);

	return 0;
}

static void aic32x4_disable_regulators(struct aic32x4_priv *aic32x4)
{
	regulator_disable(aic32x4->supply_iov);

	if (!IS_ERR(aic32x4->supply_ldo))
		regulator_disable(aic32x4->supply_ldo);

	if (!IS_ERR(aic32x4->supply_dv))
		regulator_disable(aic32x4->supply_dv);

	if (!IS_ERR(aic32x4->supply_av))
		regulator_disable(aic32x4->supply_av);
}

static int aic32x4_setup_regulators(struct device *dev,
		struct aic32x4_priv *aic32x4)
{
	int ret = 0;

	aic32x4->supply_ldo = devm_regulator_get_optional(dev, "ldoin");
	aic32x4->supply_iov = devm_regulator_get(dev, "iov");
	aic32x4->supply_dv = devm_regulator_get_optional(dev, "dv");
	aic32x4->supply_av = devm_regulator_get_optional(dev, "av");

	/* Check if the regulator requirements are fulfilled */

	if (IS_ERR(aic32x4->supply_iov)) {
		dev_err(dev, "Missing supply 'iov'\n");
		return PTR_ERR(aic32x4->supply_iov);
	}

	if (IS_ERR(aic32x4->supply_ldo)) {
		if (PTR_ERR(aic32x4->supply_ldo) == -EPROBE_DEFER)
			return -EPROBE_DEFER;

		if (IS_ERR(aic32x4->supply_dv)) {
			dev_err(dev, "Missing supply 'dv' or 'ldoin'\n");
			return PTR_ERR(aic32x4->supply_dv);
		}
		if (IS_ERR(aic32x4->supply_av)) {
			dev_err(dev, "Missing supply 'av' or 'ldoin'\n");
			return PTR_ERR(aic32x4->supply_av);
		}
	} else {
		if (IS_ERR(aic32x4->supply_dv) &&
				PTR_ERR(aic32x4->supply_dv) == -EPROBE_DEFER)
			return -EPROBE_DEFER;
		if (IS_ERR(aic32x4->supply_av) &&
				PTR_ERR(aic32x4->supply_av) == -EPROBE_DEFER)
			return -EPROBE_DEFER;
	}

	ret = regulator_enable(aic32x4->supply_iov);
	if (ret) {
		dev_err(dev, "Failed to enable regulator iov\n");
		return ret;
	}

	if (!IS_ERR(aic32x4->supply_ldo)) {
		ret = regulator_enable(aic32x4->supply_ldo);
		if (ret) {
			dev_err(dev, "Failed to enable regulator ldo\n");
			goto error_ldo;
		}
	}

	if (!IS_ERR(aic32x4->supply_dv)) {
		ret = regulator_enable(aic32x4->supply_dv);
		if (ret) {
			dev_err(dev, "Failed to enable regulator dv\n");
			goto error_dv;
		}
	}

	if (!IS_ERR(aic32x4->supply_av)) {
		ret = regulator_enable(aic32x4->supply_av);
		if (ret) {
			dev_err(dev, "Failed to enable regulator av\n");
			goto error_av;
		}
	}

	if (!IS_ERR(aic32x4->supply_ldo) && IS_ERR(aic32x4->supply_av))
		aic32x4->power_cfg |= AIC32X4_PWR_AIC32X4_LDO_ENABLE;

	return 0;

error_av:
	if (!IS_ERR(aic32x4->supply_dv))
		regulator_disable(aic32x4->supply_dv);

error_dv:
	if (!IS_ERR(aic32x4->supply_ldo))
		regulator_disable(aic32x4->supply_ldo);

error_ldo:
	regulator_disable(aic32x4->supply_iov);
	return ret;
}

static int aic32x4_i2c_probe(struct i2c_client *i2c,
			     const struct i2c_device_id *id)
{
	struct aic32x4_pdata *pdata = i2c->dev.platform_data;
	struct aic32x4_priv *aic32x4;
	struct device_node *np = i2c->dev.of_node;
	int ret;

	aic32x4 = devm_kzalloc(&i2c->dev, sizeof(struct aic32x4_priv),
			       GFP_KERNEL);
	if (aic32x4 == NULL)
		return -ENOMEM;

	aic32x4->regmap = devm_regmap_init_i2c(i2c, &aic32x4_regmap);
	if (IS_ERR(aic32x4->regmap))
		return PTR_ERR(aic32x4->regmap);

	i2c_set_clientdata(i2c, aic32x4);

	if (pdata) {
		aic32x4->power_cfg = pdata->power_cfg;
		aic32x4->swapdacs = pdata->swapdacs;
		aic32x4->micpga_routing = pdata->micpga_routing;
		aic32x4->rstn_gpio = pdata->rstn_gpio;
	} else if (np) {
		ret = aic32x4_parse_dt(aic32x4, np);
		if (ret) {
			dev_err(&i2c->dev, "Failed to parse DT node\n");
			return ret;
		}
	} else {
		aic32x4->power_cfg = 0;
		aic32x4->swapdacs = false;
		aic32x4->micpga_routing = 0;
		aic32x4->rstn_gpio = -1;
	}

	aic32x4->mclk = devm_clk_get(&i2c->dev, "mclk");
	if (IS_ERR(aic32x4->mclk)) {
		dev_err(&i2c->dev, "Failed getting the mclk. The current implementation does not support the usage of this codec without mclk\n");
		return PTR_ERR(aic32x4->mclk);
	}

	if (gpio_is_valid(aic32x4->rstn_gpio)) {
		ret = devm_gpio_request_one(&i2c->dev, aic32x4->rstn_gpio,
				GPIOF_OUT_INIT_LOW, "tlv320aic32x4 rstn");
		if (ret != 0)
			return ret;
	}

	ret = aic32x4_setup_regulators(&i2c->dev, aic32x4);
	if (ret) {
		dev_err(&i2c->dev, "Failed to setup regulators\n");
		return ret;
	}

	ret = snd_soc_register_codec(&i2c->dev,
			&soc_codec_dev_aic32x4, &aic32x4_dai, 1);
	if (ret) {
		dev_err(&i2c->dev, "Failed to register codec\n");
		aic32x4_disable_regulators(aic32x4);
		return ret;
	}

	i2c_set_clientdata(i2c, aic32x4);
	return 0;
}

static int aic32x4_i2c_remove(struct i2c_client *client)
{
	struct aic32x4_priv *aic32x4 = i2c_get_clientdata(client);

	aic32x4_disable_regulators(aic32x4);

	snd_soc_unregister_codec(&client->dev);
	return 0;
}

static const struct i2c_device_id aic32x4_i2c_id[] = {
	{ "tlv320aic32x4", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);

static const struct of_device_id aic32x4_of_id[] = {
	{ .compatible = "ti,tlv320aic32x4", },
	{ /* senitel */ }
};
MODULE_DEVICE_TABLE(of, aic32x4_of_id);

static struct i2c_driver aic32x4_i2c_driver = {
	.driver = {
		.name = "tlv320aic32x4",
		.of_match_table = aic32x4_of_id,
	},
	.probe =    aic32x4_i2c_probe,
	.remove =   aic32x4_i2c_remove,
	.id_table = aic32x4_i2c_id,
};

module_i2c_driver(aic32x4_i2c_driver);

MODULE_DESCRIPTION("ASoC tlv320aic32x4 codec driver");
MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
MODULE_LICENSE("GPL");

 

  • User, 

    Please provide just the register configuration.  

    best regards,

    -Steve Wilson

  • In reply to Steve-Wilson:

    OK,Register configuration comes from the EVM board,As follows: 

     

    ###############################################
    # High Performance Stereo Playback
    # ---------------------------------------------
    # PowerTune mode PTM_P3 is used for high
    # performance 16-bit audio. For PTM_P4,
    # an external audio interface that provides
    # 20-bit audio is required.
    #
    # For normal USB Audio, no hardware change
    # is required.
    #
    # If using an external interface, SW2.4 and
    # SW2.5 of the USB-ModEVM must be set to
    # HI and clocks can be connected to J14 of
    # the USB-ModEVM.
    #
    # Audio is routed to both headphone and
    # line outputs.
    ###############################################

    ###############################################
    # Software Reset
    ###############################################
    #
    # Select Page 0
    w 30 00 00
    #
    # Initialize the device through software reset
    w 30 01 01
    #
    ###############################################

    ###############################################
    # Clock Settings
    # ---------------------------------------------
    # The codec receives: MCLK = 11.2896 MHz,
    # BLCK = 2.8224 MHz, WCLK = 44.1 kHz
    ###############################################
    #
    # Select Page 0
    w 30 00 00
    #
    # NDAC = 1, MDAC = 2
    w 30 0b 81 82
    #
    ###############################################

    ###############################################
    # Signal Processing Settings
    ###############################################
    #
    # Select Page 0
    w 30 00 00
    #
    # Set the DAC Mode to PRB_P8
    w 30 3c 08
    #
    ###############################################

    ###############################################
    # Initialize Codec
    ###############################################
    #
    # Select Page 1
    w 30 00 01
    #
    # Disable weak AVDD in presence of external
    # AVDD supply
    w 30 01 08
    #
    # Enable Master Analog Power Control
    w 30 02 00
    #
    # Set the input powerup time to 3.1ms (for ADC)
    # w 30 47 32
    #
    # Set the REF charging time to 40ms
    w 30 7b 01
    #
    ###############################################

    ###############################################
    # Playback Setup
    ###############################################
    #
    # Select Page 1
    w 30 00 01
    #
    # De-pop
    w 30 14 25
    #
    # Route LDAC/RDAC to HPL/HPR
    w 30 0c 08 08
    #
    # Route LDAC/RDAC to LOL/LOR
    w 30 0e 08 08
    #
    # Power up HPL/HPR and LOL/LOR drivers
    w 30 09 3C
    #
    # Unmute HPL/HPR driver, 0dB Gain
    w 30 10 00 00
    #
    # Unmute LOL/LOR driver, 0dB Gain
    w 30 12 00 00
    #
    # Select Page 0
    w 30 00 00
    #
    # DAC => 0dB
    w 30 41 00 00
    #
    # Power up LDAC/RDAC
    w 30 3f d6
    #
    # Unmute LDAC/RDAC
    w 30 40 00
    #
    ###############################################

     

     

  • In reply to user6074031:

  • In reply to Steve-Wilson:

    What do you think? Now is connected to the EVM board is sound output, no EVM board no sound output. When playing, the print information is as follows:

    [root@rk3288:/]# aplay green.wav
    Playing WAVE 'green.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
    [64929.563011] audio mclk is 11289600
    [64929.566683] audio rate is 44100
    [64929.597239] data1 is 14
    [64929.599836] aic32x4_hw_params
    [64929.603588] aic32x4_set_bias_level
    [64929.622082] aic32x4_set_bias_level
    [64929.625791] aic32x4_mute, 0
    [65199.282777] aic32x4_mute, 1
    [root@rk3288:/]# [65204.295898] aic32x4_set_bias_level
    [65204.314540] aic32x4_set_bias_level
    ^C
    [root@rk3288:/]#
    [root@rk3288:/]# ^C
    [root@rk3288:/]#

  • In reply to user6074031:

    User, 

    I'm sorry you are having some difficulties with getting linux to mount the TLV320AIC3254. 

    We do not review device tree settings due to the large variety of systems developed by third parties and the different Linux versions available. We do provide examples based on TI boards that show the three main components that must be configured and linked:

    • Codec driver - This is provided by TI for select codec like TLV320AIC310x
    • Platform driver - This is provided by the Linux system
    • Machine driver - This connects pins, power, and other board level components together

    This Sitara Linux Audio Driver Overview wiki page provides an overview on how to configure the three components.

    This ALSA User Space wiki page shows some of the command line utilities available.

    This Linux Core Audio User's Guide wiki page shows examples of using audio codecs on different TI Linux EVMs.

    These wiki pages should provide a good starting point for development. For further support, contact the third party and appropriate Linux support forums for your system and Linux version.

    best regards,

    -Steve Wilson

  • In reply to Steve-Wilson:

    Dear steve:

     

    1. Now there is no problem on this side of the device tree. Sound cards have been registered and uploaded.
    2. These WIKI websites you provide do not feel helpful to my development of AIC3254.
    3. Can you provide your mailbox? I want to contact you directly.

     

    best regards!

  • In reply to user6074031:

    User, 

    As I mentioned before we do not support Drivers or linux (including the device tree).  Feel free to send me a private message here on E2E if you need to contact us out of the public eye.

    best regards,

    -Steve Wilson