forked from luck/tmp_suning_uos_patched
590 lines
14 KiB
C
590 lines
14 KiB
C
/*
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* DA7210 ALSA Soc codec driver
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*
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* Copyright (c) 2009 Dialog Semiconductor
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* Written by David Chen <Dajun.chen@diasemi.com>
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*
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* Copyright (C) 2009 Renesas Solutions Corp.
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* Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com>
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*
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* Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/i2c.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/tlv.h>
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#include <sound/initval.h>
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#include <asm/div64.h>
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#include "da7210.h"
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/* DA7210 register space */
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#define DA7210_STATUS 0x02
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#define DA7210_STARTUP1 0x03
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#define DA7210_MIC_L 0x07
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#define DA7210_MIC_R 0x08
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#define DA7210_INMIX_L 0x0D
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#define DA7210_INMIX_R 0x0E
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#define DA7210_ADC_HPF 0x0F
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#define DA7210_ADC 0x10
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#define DA7210_DAC_HPF 0x14
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#define DA7210_DAC_L 0x15
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#define DA7210_DAC_R 0x16
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#define DA7210_DAC_SEL 0x17
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#define DA7210_OUTMIX_L 0x1C
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#define DA7210_OUTMIX_R 0x1D
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#define DA7210_HP_L_VOL 0x21
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#define DA7210_HP_R_VOL 0x22
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#define DA7210_HP_CFG 0x23
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#define DA7210_DAI_SRC_SEL 0x25
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#define DA7210_DAI_CFG1 0x26
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#define DA7210_DAI_CFG3 0x28
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#define DA7210_PLL_DIV3 0x2B
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#define DA7210_PLL 0x2C
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/* STARTUP1 bit fields */
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#define DA7210_SC_MST_EN (1 << 0)
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/* MIC_L bit fields */
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#define DA7210_MICBIAS_EN (1 << 6)
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#define DA7210_MIC_L_EN (1 << 7)
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/* MIC_R bit fields */
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#define DA7210_MIC_R_EN (1 << 7)
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/* INMIX_L bit fields */
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#define DA7210_IN_L_EN (1 << 7)
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/* INMIX_R bit fields */
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#define DA7210_IN_R_EN (1 << 7)
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/* ADC_HPF bit fields */
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#define DA7210_ADC_VOICE_EN (1 << 7)
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/* ADC bit fields */
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#define DA7210_ADC_L_EN (1 << 3)
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#define DA7210_ADC_R_EN (1 << 7)
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/* DAC_HPF fields */
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#define DA7210_DAC_VOICE_EN (1 << 7)
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/* DAC_SEL bit fields */
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#define DA7210_DAC_L_SRC_DAI_L (4 << 0)
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#define DA7210_DAC_L_EN (1 << 3)
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#define DA7210_DAC_R_SRC_DAI_R (5 << 4)
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#define DA7210_DAC_R_EN (1 << 7)
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/* OUTMIX_L bit fields */
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#define DA7210_OUT_L_EN (1 << 7)
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/* OUTMIX_R bit fields */
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#define DA7210_OUT_R_EN (1 << 7)
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/* HP_CFG bit fields */
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#define DA7210_HP_2CAP_MODE (1 << 1)
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#define DA7210_HP_SENSE_EN (1 << 2)
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#define DA7210_HP_L_EN (1 << 3)
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#define DA7210_HP_MODE (1 << 6)
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#define DA7210_HP_R_EN (1 << 7)
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/* DAI_SRC_SEL bit fields */
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#define DA7210_DAI_OUT_L_SRC (6 << 0)
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#define DA7210_DAI_OUT_R_SRC (7 << 4)
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/* DAI_CFG1 bit fields */
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#define DA7210_DAI_WORD_S16_LE (0 << 0)
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#define DA7210_DAI_WORD_S24_LE (2 << 0)
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#define DA7210_DAI_FLEN_64BIT (1 << 2)
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#define DA7210_DAI_MODE_MASTER (1 << 7)
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/* DAI_CFG3 bit fields */
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#define DA7210_DAI_FORMAT_I2SMODE (0 << 0)
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#define DA7210_DAI_OE (1 << 3)
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#define DA7210_DAI_EN (1 << 7)
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/*PLL_DIV3 bit fields */
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#define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4)
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#define DA7210_PLL_BYP (1 << 6)
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/* PLL bit fields */
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#define DA7210_PLL_FS_48000 (11 << 0)
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#define DA7210_VERSION "0.0.1"
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/* Codec private data */
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struct da7210_priv {
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struct snd_soc_codec codec;
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};
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static struct snd_soc_codec *da7210_codec;
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/*
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* Register cache
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*/
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static const u8 da7210_reg[] = {
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0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */
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0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */
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0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */
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0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */
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0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */
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0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */
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0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */
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0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */
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0x00, /* R88 */
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};
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/*
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* Read da7210 register cache
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*/
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static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
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{
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u8 *cache = codec->reg_cache;
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BUG_ON(reg > ARRAY_SIZE(da7210_reg));
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return cache[reg];
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}
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/*
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* Write to the da7210 register space
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*/
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static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value)
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{
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u8 *cache = codec->reg_cache;
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u8 data[2];
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BUG_ON(codec->volatile_register);
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data[0] = reg & 0xff;
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data[1] = value & 0xff;
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if (reg >= codec->reg_cache_size)
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return -EIO;
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if (2 != codec->hw_write(codec->control_data, data, 2))
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return -EIO;
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cache[reg] = value;
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return 0;
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}
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/*
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* Read from the da7210 register space.
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*/
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static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg)
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{
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if (DA7210_STATUS == reg)
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return i2c_smbus_read_byte_data(codec->control_data, reg);
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return da7210_read_reg_cache(codec, reg);
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}
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static int da7210_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
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struct snd_soc_codec *codec = dai->codec;
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if (is_play) {
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/* PlayBack Volume 40 */
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snd_soc_update_bits(codec, DA7210_HP_L_VOL, 0x3F, 40);
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snd_soc_update_bits(codec, DA7210_HP_R_VOL, 0x3F, 40);
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/* Enable Out */
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snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10);
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snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);
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} else {
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/* Volume 7 */
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snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
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snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);
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/* Enable Mic */
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snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
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snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
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}
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return 0;
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}
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/*
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* Set PCM DAI word length.
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*/
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static int da7210_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_device *socdev = rtd->socdev;
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struct snd_soc_codec *codec = socdev->card->codec;
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u32 dai_cfg1;
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u32 reg, mask;
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/* set DAI source to Left and Right ADC */
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da7210_write(codec, DA7210_DAI_SRC_SEL,
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DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);
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/* Enable DAI */
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da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);
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dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1);
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switch (params_format(params)) {
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case SNDRV_PCM_FORMAT_S16_LE:
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dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
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break;
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case SNDRV_PCM_FORMAT_S24_LE:
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dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
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break;
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default:
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return -EINVAL;
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}
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da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
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/* FIXME
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*
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* It support 48K only now
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*/
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switch (params_rate(params)) {
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case 48000:
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if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) {
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reg = DA7210_DAC_HPF;
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mask = DA7210_DAC_VOICE_EN;
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} else {
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reg = DA7210_ADC_HPF;
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mask = DA7210_ADC_VOICE_EN;
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}
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break;
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default:
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return -EINVAL;
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}
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snd_soc_update_bits(codec, reg, mask, 0);
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return 0;
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}
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/*
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* Set DAI mode and Format
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*/
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static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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u32 dai_cfg1;
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u32 dai_cfg3;
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dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1);
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dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3);
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
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case SND_SOC_DAIFMT_CBM_CFM:
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dai_cfg1 |= DA7210_DAI_MODE_MASTER;
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break;
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default:
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return -EINVAL;
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}
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/* FIXME
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*
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* It support I2S only now
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*/
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE;
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break;
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default:
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return -EINVAL;
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}
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/* FIXME
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*
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* It support 64bit data transmission only now
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*/
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dai_cfg1 |= DA7210_DAI_FLEN_64BIT;
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da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
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da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3);
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return 0;
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}
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#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
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/* DAI operations */
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static struct snd_soc_dai_ops da7210_dai_ops = {
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.startup = da7210_startup,
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.hw_params = da7210_hw_params,
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.set_fmt = da7210_set_dai_fmt,
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};
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struct snd_soc_dai da7210_dai = {
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.name = "DA7210 IIS",
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.id = 0,
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/* playback capabilities */
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 2,
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.rates = SNDRV_PCM_RATE_8000_96000,
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.formats = DA7210_FORMATS,
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},
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/* capture capabilities */
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 2,
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.rates = SNDRV_PCM_RATE_8000_96000,
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.formats = DA7210_FORMATS,
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},
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.ops = &da7210_dai_ops,
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};
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EXPORT_SYMBOL_GPL(da7210_dai);
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/*
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* Initialize the DA7210 driver
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* register the mixer and dsp interfaces with the kernel
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*/
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static int da7210_init(struct da7210_priv *da7210)
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{
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struct snd_soc_codec *codec = &da7210->codec;
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int ret = 0;
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if (da7210_codec) {
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dev_err(codec->dev, "Another da7210 is registered\n");
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return -EINVAL;
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}
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mutex_init(&codec->mutex);
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INIT_LIST_HEAD(&codec->dapm_widgets);
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INIT_LIST_HEAD(&codec->dapm_paths);
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codec->private_data = da7210;
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codec->name = "DA7210";
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codec->owner = THIS_MODULE;
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codec->read = da7210_read;
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codec->write = da7210_write;
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codec->dai = &da7210_dai;
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codec->num_dai = 1;
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codec->hw_write = (hw_write_t)i2c_master_send;
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codec->reg_cache_size = ARRAY_SIZE(da7210_reg);
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codec->reg_cache = kmemdup(da7210_reg,
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sizeof(da7210_reg), GFP_KERNEL);
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if (!codec->reg_cache)
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return -ENOMEM;
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da7210_dai.dev = codec->dev;
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da7210_codec = codec;
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ret = snd_soc_register_codec(codec);
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if (ret) {
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dev_err(codec->dev, "Failed to register CODEC: %d\n", ret);
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goto init_err;
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}
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ret = snd_soc_register_dai(&da7210_dai);
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if (ret) {
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dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
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goto init_err;
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}
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/* FIXME
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*
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* This driver use fixed value here
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*/
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/*
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* ADC settings
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*/
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/* Enable Left & Right MIC PGA and Mic Bias */
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da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
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da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
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/* Enable Left and Right input PGA */
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da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
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da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
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/* Enable Left and Right ADC */
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da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);
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/*
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* DAC settings
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*/
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/* Enable Left and Right DAC */
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da7210_write(codec, DA7210_DAC_SEL,
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DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
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DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);
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/* Enable Left and Right out PGA */
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da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
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da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
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/* Enable Left and Right HeadPhone PGA */
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da7210_write(codec, DA7210_HP_CFG,
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DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
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DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);
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/* Diable PLL and bypass it */
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da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
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/* Bypass PLL and set MCLK freq rang to 10-20MHz */
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da7210_write(codec, DA7210_PLL_DIV3,
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|
DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
|
|
|
|
/* Activate all enabled subsystem */
|
|
da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
|
|
|
|
return ret;
|
|
|
|
init_err:
|
|
kfree(codec->reg_cache);
|
|
codec->reg_cache = NULL;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct da7210_priv *da7210;
|
|
struct snd_soc_codec *codec;
|
|
int ret;
|
|
|
|
da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL);
|
|
if (!da7210)
|
|
return -ENOMEM;
|
|
|
|
codec = &da7210->codec;
|
|
codec->dev = &i2c->dev;
|
|
|
|
i2c_set_clientdata(i2c, da7210);
|
|
codec->control_data = i2c;
|
|
|
|
ret = da7210_init(da7210);
|
|
if (ret < 0)
|
|
pr_err("Failed to initialise da7210 audio codec\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __devexit da7210_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct da7210_priv *da7210 = i2c_get_clientdata(client);
|
|
|
|
snd_soc_unregister_dai(&da7210_dai);
|
|
kfree(da7210->codec.reg_cache);
|
|
kfree(da7210);
|
|
da7210_codec = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id da7210_i2c_id[] = {
|
|
{ "da7210", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
|
|
|
|
/* I2C codec control layer */
|
|
static struct i2c_driver da7210_i2c_driver = {
|
|
.driver = {
|
|
.name = "DA7210 I2C Codec",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = da7210_i2c_probe,
|
|
.remove = __devexit_p(da7210_i2c_remove),
|
|
.id_table = da7210_i2c_id,
|
|
};
|
|
#endif
|
|
|
|
static int da7210_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
struct snd_soc_codec *codec;
|
|
int ret;
|
|
|
|
if (!da7210_codec) {
|
|
dev_err(&pdev->dev, "Codec device not registered\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
socdev->card->codec = da7210_codec;
|
|
codec = da7210_codec;
|
|
|
|
/* Register pcms */
|
|
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
|
|
if (ret < 0)
|
|
goto pcm_err;
|
|
|
|
dev_info(&pdev->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
|
|
|
|
pcm_err:
|
|
return ret;
|
|
}
|
|
|
|
static int da7210_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
|
|
snd_soc_free_pcms(socdev);
|
|
snd_soc_dapm_free(socdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct snd_soc_codec_device soc_codec_dev_da7210 = {
|
|
.probe = da7210_probe,
|
|
.remove = da7210_remove,
|
|
};
|
|
EXPORT_SYMBOL_GPL(soc_codec_dev_da7210);
|
|
|
|
static int __init da7210_modinit(void)
|
|
{
|
|
int ret = 0;
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
ret = i2c_add_driver(&da7210_i2c_driver);
|
|
#endif
|
|
return ret;
|
|
}
|
|
module_init(da7210_modinit);
|
|
|
|
static void __exit da7210_exit(void)
|
|
{
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
i2c_del_driver(&da7210_i2c_driver);
|
|
#endif
|
|
}
|
|
module_exit(da7210_exit);
|
|
|
|
MODULE_DESCRIPTION("ASoC DA7210 driver");
|
|
MODULE_AUTHOR("David Chen, Kuninori Morimoto");
|
|
MODULE_LICENSE("GPL");
|