/* * tfa9879.c -- driver for NXP Semiconductors TFA9879 * * Copyright (C) 2014 Axentia Technologies AB * Author: Peter Rosin * * 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 "tfa9879.h" struct tfa9879_priv { struct regmap *regmap; int lsb_justified; }; static int tfa9879_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 tfa9879_priv *tfa9879 = snd_soc_codec_get_drvdata(codec); int fs; int i2s_set = 0; switch (params_rate(params)) { case 8000: fs = TFA9879_I2S_FS_8000; break; case 11025: fs = TFA9879_I2S_FS_11025; break; case 12000: fs = TFA9879_I2S_FS_12000; break; case 16000: fs = TFA9879_I2S_FS_16000; break; case 22050: fs = TFA9879_I2S_FS_22050; break; case 24000: fs = TFA9879_I2S_FS_24000; break; case 32000: fs = TFA9879_I2S_FS_32000; break; case 44100: fs = TFA9879_I2S_FS_44100; break; case 48000: fs = TFA9879_I2S_FS_48000; break; case 64000: fs = TFA9879_I2S_FS_64000; break; case 88200: fs = TFA9879_I2S_FS_88200; break; case 96000: fs = TFA9879_I2S_FS_96000; break; default: return -EINVAL; } switch (params_width(params)) { case 16: i2s_set = TFA9879_I2S_SET_LSB_J_16; break; case 24: i2s_set = TFA9879_I2S_SET_LSB_J_24; break; default: return -EINVAL; } if (tfa9879->lsb_justified) snd_soc_update_bits(codec, TFA9879_SERIAL_INTERFACE_1, TFA9879_I2S_SET_MASK, i2s_set << TFA9879_I2S_SET_SHIFT); snd_soc_update_bits(codec, TFA9879_SERIAL_INTERFACE_1, TFA9879_I2S_FS_MASK, fs << TFA9879_I2S_FS_SHIFT); return 0; } static int tfa9879_digital_mute(struct snd_soc_dai *dai, int mute) { struct snd_soc_codec *codec = dai->codec; snd_soc_update_bits(codec, TFA9879_MISC_CONTROL, TFA9879_S_MUTE_MASK, !!mute << TFA9879_S_MUTE_SHIFT); return 0; } static int tfa9879_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_codec *codec = dai->codec; struct tfa9879_priv *tfa9879 = snd_soc_codec_get_drvdata(codec); int i2s_set; int sck_pol; switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: break; default: return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: sck_pol = TFA9879_SCK_POL_NORMAL; break; case SND_SOC_DAIFMT_IB_NF: sck_pol = TFA9879_SCK_POL_INVERSE; break; default: return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: tfa9879->lsb_justified = 0; i2s_set = TFA9879_I2S_SET_I2S_24; break; case SND_SOC_DAIFMT_LEFT_J: tfa9879->lsb_justified = 0; i2s_set = TFA9879_I2S_SET_MSB_J_24; break; case SND_SOC_DAIFMT_RIGHT_J: tfa9879->lsb_justified = 1; i2s_set = TFA9879_I2S_SET_LSB_J_24; break; default: return -EINVAL; } snd_soc_update_bits(codec, TFA9879_SERIAL_INTERFACE_1, TFA9879_SCK_POL_MASK, sck_pol << TFA9879_SCK_POL_SHIFT); snd_soc_update_bits(codec, TFA9879_SERIAL_INTERFACE_1, TFA9879_I2S_SET_MASK, i2s_set << TFA9879_I2S_SET_SHIFT); return 0; } static const struct reg_default tfa9879_regs[] = { { TFA9879_DEVICE_CONTROL, 0x0000 }, /* 0x00 */ { TFA9879_SERIAL_INTERFACE_1, 0x0a18 }, /* 0x01 */ { TFA9879_PCM_IOM2_FORMAT_1, 0x0007 }, /* 0x02 */ { TFA9879_SERIAL_INTERFACE_2, 0x0a18 }, /* 0x03 */ { TFA9879_PCM_IOM2_FORMAT_2, 0x0007 }, /* 0x04 */ { TFA9879_EQUALIZER_A1, 0x59dd }, /* 0x05 */ { TFA9879_EQUALIZER_A2, 0xc63e }, /* 0x06 */ { TFA9879_EQUALIZER_B1, 0x651a }, /* 0x07 */ { TFA9879_EQUALIZER_B2, 0xe53e }, /* 0x08 */ { TFA9879_EQUALIZER_C1, 0x4616 }, /* 0x09 */ { TFA9879_EQUALIZER_C2, 0xd33e }, /* 0x0a */ { TFA9879_EQUALIZER_D1, 0x4df3 }, /* 0x0b */ { TFA9879_EQUALIZER_D2, 0xea3e }, /* 0x0c */ { TFA9879_EQUALIZER_E1, 0x5ee0 }, /* 0x0d */ { TFA9879_EQUALIZER_E2, 0xf93e }, /* 0x0e */ { TFA9879_BYPASS_CONTROL, 0x0093 }, /* 0x0f */ { TFA9879_DYNAMIC_RANGE_COMPR, 0x92ba }, /* 0x10 */ { TFA9879_BASS_TREBLE, 0x12a5 }, /* 0x11 */ { TFA9879_HIGH_PASS_FILTER, 0x0004 }, /* 0x12 */ { TFA9879_VOLUME_CONTROL, 0x10bd }, /* 0x13 */ { TFA9879_MISC_CONTROL, 0x0000 }, /* 0x14 */ }; static bool tfa9879_volatile_reg(struct device *dev, unsigned int reg) { return reg == TFA9879_MISC_STATUS; } static const DECLARE_TLV_DB_SCALE(volume_tlv, -7050, 50, 1); static const DECLARE_TLV_DB_SCALE(tb_gain_tlv, -1800, 200, 0); static const char * const tb_freq_text[] = { "Low", "Mid", "High" }; static const struct soc_enum treble_freq_enum = SOC_ENUM_SINGLE(TFA9879_BASS_TREBLE, TFA9879_F_TRBLE_SHIFT, ARRAY_SIZE(tb_freq_text), tb_freq_text); static const struct soc_enum bass_freq_enum = SOC_ENUM_SINGLE(TFA9879_BASS_TREBLE, TFA9879_F_BASS_SHIFT, ARRAY_SIZE(tb_freq_text), tb_freq_text); static const struct snd_kcontrol_new tfa9879_controls[] = { SOC_SINGLE_TLV("PCM Playback Volume", TFA9879_VOLUME_CONTROL, TFA9879_VOL_SHIFT, 0xbd, 1, volume_tlv), SOC_SINGLE_TLV("Treble Volume", TFA9879_BASS_TREBLE, TFA9879_G_TRBLE_SHIFT, 18, 0, tb_gain_tlv), SOC_SINGLE_TLV("Bass Volume", TFA9879_BASS_TREBLE, TFA9879_G_BASS_SHIFT, 18, 0, tb_gain_tlv), SOC_ENUM("Treble Corner Freq", treble_freq_enum), SOC_ENUM("Bass Corner Freq", bass_freq_enum), }; static const struct snd_soc_dapm_widget tfa9879_dapm_widgets[] = { SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_DAC("DAC", NULL, TFA9879_DEVICE_CONTROL, TFA9879_OPMODE_SHIFT, 0), SND_SOC_DAPM_OUTPUT("LINEOUT"), SND_SOC_DAPM_SUPPLY("POWER", TFA9879_DEVICE_CONTROL, TFA9879_POWERUP_SHIFT, 0, NULL, 0), }; static const struct snd_soc_dapm_route tfa9879_dapm_routes[] = { { "DAC", NULL, "AIFINL" }, { "DAC", NULL, "AIFINR" }, { "LINEOUT", NULL, "DAC" }, { "DAC", NULL, "POWER" }, }; static const struct snd_soc_codec_driver tfa9879_codec = { .component_driver = { .controls = tfa9879_controls, .num_controls = ARRAY_SIZE(tfa9879_controls), .dapm_widgets = tfa9879_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tfa9879_dapm_widgets), .dapm_routes = tfa9879_dapm_routes, .num_dapm_routes = ARRAY_SIZE(tfa9879_dapm_routes), }, }; static const struct regmap_config tfa9879_regmap = { .reg_bits = 8, .val_bits = 16, .volatile_reg = tfa9879_volatile_reg, .max_register = TFA9879_MISC_STATUS, .reg_defaults = tfa9879_regs, .num_reg_defaults = ARRAY_SIZE(tfa9879_regs), .cache_type = REGCACHE_RBTREE, }; static const struct snd_soc_dai_ops tfa9879_dai_ops = { .hw_params = tfa9879_hw_params, .digital_mute = tfa9879_digital_mute, .set_fmt = tfa9879_set_fmt, }; #define TFA9879_RATES SNDRV_PCM_RATE_8000_96000 #define TFA9879_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S24_LE) static struct snd_soc_dai_driver tfa9879_dai = { .name = "tfa9879-hifi", .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = TFA9879_RATES, .formats = TFA9879_FORMATS, }, .ops = &tfa9879_dai_ops, }; static int tfa9879_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct tfa9879_priv *tfa9879; int i; tfa9879 = devm_kzalloc(&i2c->dev, sizeof(*tfa9879), GFP_KERNEL); if (!tfa9879) return -ENOMEM; i2c_set_clientdata(i2c, tfa9879); tfa9879->regmap = devm_regmap_init_i2c(i2c, &tfa9879_regmap); if (IS_ERR(tfa9879->regmap)) return PTR_ERR(tfa9879->regmap); /* Ensure the device is in reset state */ for (i = 0; i < ARRAY_SIZE(tfa9879_regs); i++) regmap_write(tfa9879->regmap, tfa9879_regs[i].reg, tfa9879_regs[i].def); return snd_soc_register_codec(&i2c->dev, &tfa9879_codec, &tfa9879_dai, 1); } static int tfa9879_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); return 0; } static const struct i2c_device_id tfa9879_i2c_id[] = { { "tfa9879", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, tfa9879_i2c_id); static struct i2c_driver tfa9879_i2c_driver = { .driver = { .name = "tfa9879", }, .probe = tfa9879_i2c_probe, .remove = tfa9879_i2c_remove, .id_table = tfa9879_i2c_id, }; module_i2c_driver(tfa9879_i2c_driver); MODULE_DESCRIPTION("ASoC NXP Semiconductors TFA9879 driver"); MODULE_AUTHOR("Peter Rosin "); MODULE_LICENSE("GPL");