/* * DA7210 ALSA Soc codec driver * * Copyright (c) 2009 Dialog Semiconductor * Written by David Chen * * Copyright (C) 2009 Renesas Solutions Corp. * Cleanups by Kuninori Morimoto * * Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S * * 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. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "da7210.h" /* DA7210 register space */ #define DA7210_STATUS 0x02 #define DA7210_STARTUP1 0x03 #define DA7210_MIC_L 0x07 #define DA7210_MIC_R 0x08 #define DA7210_INMIX_L 0x0D #define DA7210_INMIX_R 0x0E #define DA7210_ADC_HPF 0x0F #define DA7210_ADC 0x10 #define DA7210_DAC_HPF 0x14 #define DA7210_DAC_L 0x15 #define DA7210_DAC_R 0x16 #define DA7210_DAC_SEL 0x17 #define DA7210_OUTMIX_L 0x1C #define DA7210_OUTMIX_R 0x1D #define DA7210_HP_L_VOL 0x21 #define DA7210_HP_R_VOL 0x22 #define DA7210_HP_CFG 0x23 #define DA7210_DAI_SRC_SEL 0x25 #define DA7210_DAI_CFG1 0x26 #define DA7210_DAI_CFG3 0x28 #define DA7210_PLL_DIV3 0x2B #define DA7210_PLL 0x2C /* STARTUP1 bit fields */ #define DA7210_SC_MST_EN (1 << 0) /* MIC_L bit fields */ #define DA7210_MICBIAS_EN (1 << 6) #define DA7210_MIC_L_EN (1 << 7) /* MIC_R bit fields */ #define DA7210_MIC_R_EN (1 << 7) /* INMIX_L bit fields */ #define DA7210_IN_L_EN (1 << 7) /* INMIX_R bit fields */ #define DA7210_IN_R_EN (1 << 7) /* ADC_HPF bit fields */ #define DA7210_ADC_VOICE_EN (1 << 7) /* ADC bit fields */ #define DA7210_ADC_L_EN (1 << 3) #define DA7210_ADC_R_EN (1 << 7) /* DAC_HPF fields */ #define DA7210_DAC_VOICE_EN (1 << 7) /* DAC_SEL bit fields */ #define DA7210_DAC_L_SRC_DAI_L (4 << 0) #define DA7210_DAC_L_EN (1 << 3) #define DA7210_DAC_R_SRC_DAI_R (5 << 4) #define DA7210_DAC_R_EN (1 << 7) /* OUTMIX_L bit fields */ #define DA7210_OUT_L_EN (1 << 7) /* OUTMIX_R bit fields */ #define DA7210_OUT_R_EN (1 << 7) /* HP_CFG bit fields */ #define DA7210_HP_2CAP_MODE (1 << 1) #define DA7210_HP_SENSE_EN (1 << 2) #define DA7210_HP_L_EN (1 << 3) #define DA7210_HP_MODE (1 << 6) #define DA7210_HP_R_EN (1 << 7) /* DAI_SRC_SEL bit fields */ #define DA7210_DAI_OUT_L_SRC (6 << 0) #define DA7210_DAI_OUT_R_SRC (7 << 4) /* DAI_CFG1 bit fields */ #define DA7210_DAI_WORD_S16_LE (0 << 0) #define DA7210_DAI_WORD_S24_LE (2 << 0) #define DA7210_DAI_FLEN_64BIT (1 << 2) #define DA7210_DAI_MODE_MASTER (1 << 7) /* DAI_CFG3 bit fields */ #define DA7210_DAI_FORMAT_I2SMODE (0 << 0) #define DA7210_DAI_OE (1 << 3) #define DA7210_DAI_EN (1 << 7) /*PLL_DIV3 bit fields */ #define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4) #define DA7210_PLL_BYP (1 << 6) /* PLL bit fields */ #define DA7210_PLL_FS_48000 (11 << 0) #define DA7210_VERSION "0.0.1" /* Codec private data */ struct da7210_priv { struct snd_soc_codec codec; }; static struct snd_soc_codec *da7210_codec; /* * Register cache */ static const u8 da7210_reg[] = { 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */ 0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */ 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */ 0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */ 0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */ 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */ 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */ 0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */ 0x00, /* R88 */ }; /* * Read da7210 register cache */ static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg) { u8 *cache = codec->reg_cache; BUG_ON(reg > ARRAY_SIZE(da7210_reg)); return cache[reg]; } /* * Write to the da7210 register space */ static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value) { u8 *cache = codec->reg_cache; u8 data[2]; BUG_ON(codec->volatile_register); data[0] = reg & 0xff; data[1] = value & 0xff; if (reg >= codec->reg_cache_size) return -EIO; if (2 != codec->hw_write(codec->control_data, data, 2)) return -EIO; cache[reg] = value; return 0; } /* * Read from the da7210 register space. */ static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg) { if (DA7210_STATUS == reg) return i2c_smbus_read_byte_data(codec->control_data, reg); return da7210_read_reg_cache(codec, reg); } static int da7210_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; struct snd_soc_codec *codec = dai->codec; if (is_play) { /* PlayBack Volume 40 */ snd_soc_update_bits(codec, DA7210_HP_L_VOL, 0x3F, 40); snd_soc_update_bits(codec, DA7210_HP_R_VOL, 0x3F, 40); /* Enable Out */ snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10); snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10); } else { /* Volume 7 */ snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7); snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7); /* Enable Mic */ snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1); snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1); } return 0; } /* * Set PCM DAI word length. */ static int da7210_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; struct snd_soc_codec *codec = socdev->card->codec; u32 dai_cfg1; u32 reg, mask; /* set DAI source to Left and Right ADC */ da7210_write(codec, DA7210_DAI_SRC_SEL, DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC); /* Enable DAI */ da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN); dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1); switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: dai_cfg1 |= DA7210_DAI_WORD_S16_LE; break; case SNDRV_PCM_FORMAT_S24_LE: dai_cfg1 |= DA7210_DAI_WORD_S24_LE; break; default: return -EINVAL; } da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1); /* FIXME * * It support 48K only now */ switch (params_rate(params)) { case 48000: if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { reg = DA7210_DAC_HPF; mask = DA7210_DAC_VOICE_EN; } else { reg = DA7210_ADC_HPF; mask = DA7210_ADC_VOICE_EN; } break; default: return -EINVAL; } snd_soc_update_bits(codec, reg, mask, 0); return 0; } /* * Set DAI mode and Format */ static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt) { struct snd_soc_codec *codec = codec_dai->codec; u32 dai_cfg1; u32 dai_cfg3; dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1); dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3); switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: dai_cfg1 |= DA7210_DAI_MODE_MASTER; break; default: return -EINVAL; } /* FIXME * * It support I2S only now */ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE; break; default: return -EINVAL; } /* FIXME * * It support 64bit data transmission only now */ dai_cfg1 |= DA7210_DAI_FLEN_64BIT; da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1); da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3); return 0; } #define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE) /* DAI operations */ static struct snd_soc_dai_ops da7210_dai_ops = { .startup = da7210_startup, .hw_params = da7210_hw_params, .set_fmt = da7210_set_dai_fmt, }; struct snd_soc_dai da7210_dai = { .name = "DA7210 IIS", .id = 0, /* playback capabilities */ .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_96000, .formats = DA7210_FORMATS, }, /* capture capabilities */ .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_96000, .formats = DA7210_FORMATS, }, .ops = &da7210_dai_ops, }; EXPORT_SYMBOL_GPL(da7210_dai); /* * Initialize the DA7210 driver * register the mixer and dsp interfaces with the kernel */ static int da7210_init(struct da7210_priv *da7210) { struct snd_soc_codec *codec = &da7210->codec; int ret = 0; if (da7210_codec) { dev_err(codec->dev, "Another da7210 is registered\n"); return -EINVAL; } mutex_init(&codec->mutex); INIT_LIST_HEAD(&codec->dapm_widgets); INIT_LIST_HEAD(&codec->dapm_paths); codec->private_data = da7210; codec->name = "DA7210"; codec->owner = THIS_MODULE; codec->read = da7210_read; codec->write = da7210_write; codec->dai = &da7210_dai; codec->num_dai = 1; codec->hw_write = (hw_write_t)i2c_master_send; codec->reg_cache_size = ARRAY_SIZE(da7210_reg); codec->reg_cache = kmemdup(da7210_reg, sizeof(da7210_reg), GFP_KERNEL); if (!codec->reg_cache) return -ENOMEM; da7210_dai.dev = codec->dev; da7210_codec = codec; ret = snd_soc_register_codec(codec); if (ret) { dev_err(codec->dev, "Failed to register CODEC: %d\n", ret); goto init_err; } ret = snd_soc_register_dai(&da7210_dai); if (ret) { dev_err(codec->dev, "Failed to register DAI: %d\n", ret); goto init_err; } /* FIXME * * This driver use fixed value here */ /* * ADC settings */ /* Enable Left & Right MIC PGA and Mic Bias */ da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN); da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN); /* Enable Left and Right input PGA */ da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN); da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN); /* Enable Left and Right ADC */ da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN); /* * DAC settings */ /* Enable Left and Right DAC */ da7210_write(codec, DA7210_DAC_SEL, DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN | DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN); /* Enable Left and Right out PGA */ da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN); da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN); /* Enable Left and Right HeadPhone PGA */ da7210_write(codec, DA7210_HP_CFG, DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN | DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN); /* Diable PLL and bypass it */ da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000); /* Bypass PLL and set MCLK freq rang to 10-20MHz */ da7210_write(codec, DA7210_PLL_DIV3, 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 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 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");