/* * stac9766.c -- ALSA SoC STAC9766 codec support * * Copyright 2009 Jon Smirl, Digispeaker * Author: Jon Smirl * * 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. * * Features:- * * o Support for AC97 Codec, S/PDIF */ #include #include #include #include #include #include #include #include #include #include #include #include #define STAC9766_VENDOR_ID 0x83847666 #define STAC9766_VENDOR_ID_MASK 0xffffffff #define AC97_STAC_DA_CONTROL 0x6A #define AC97_STAC_ANALOG_SPECIAL 0x6E #define AC97_STAC_STEREO_MIC 0x78 static const struct reg_default stac9766_reg_defaults[] = { { 0x02, 0x8000 }, { 0x04, 0x8000 }, { 0x06, 0x8000 }, { 0x0a, 0x0000 }, { 0x0c, 0x8008 }, { 0x0e, 0x8008 }, { 0x10, 0x8808 }, { 0x12, 0x8808 }, { 0x14, 0x8808 }, { 0x16, 0x8808 }, { 0x18, 0x8808 }, { 0x1a, 0x0000 }, { 0x1c, 0x8000 }, { 0x20, 0x0000 }, { 0x22, 0x0000 }, { 0x28, 0x0a05 }, { 0x2c, 0xbb80 }, { 0x32, 0xbb80 }, { 0x3a, 0x2000 }, { 0x3e, 0x0100 }, { 0x4c, 0x0300 }, { 0x4e, 0xffff }, { 0x50, 0x0000 }, { 0x52, 0x0000 }, { 0x54, 0x0000 }, { 0x6a, 0x0000 }, { 0x6e, 0x1000 }, { 0x72, 0x0000 }, { 0x78, 0x0000 }, }; static const struct regmap_config stac9766_regmap_config = { .reg_bits = 16, .reg_stride = 2, .val_bits = 16, .max_register = 0x78, .cache_type = REGCACHE_RBTREE, .volatile_reg = regmap_ac97_default_volatile, .reg_defaults = stac9766_reg_defaults, .num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults), }; static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX", "Line", "Stereo Mix", "Mono Mix", "Phone"}; static const char *stac9766_mono_mux[] = {"Mix", "Mic"}; static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"}; static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"}; static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"}; static const char *stac9766_record_all_mux[] = {"All analog", "Analog plus DAC"}; static const char *stac9766_boost1[] = {"0dB", "10dB"}; static const char *stac9766_boost2[] = {"0dB", "20dB"}; static const char *stac9766_stereo_mic[] = {"Off", "On"}; static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum, AC97_REC_SEL, 8, 0, stac9766_record_mux); static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum, AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux); static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum, AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux); static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum, AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux); static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum, AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux); static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum, AC97_STAC_ANALOG_SPECIAL, 12, stac9766_record_all_mux); static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum, AC97_MIC, 6, stac9766_boost1); /* 0/10dB */ static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum, AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */ static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum, AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic); static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0); static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0, 150, 0); static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500, 300, 0); static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450, 150, 0); static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = { SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv), SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1), SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1, master_tlv), SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1), SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1, master_tlv), SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1), SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv), SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1), SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv), SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1), SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1), SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv), SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1), SOC_ENUM("Mic Boost1", stac9766_boost1_enum), SOC_ENUM("Mic Boost2", stac9766_boost2_enum), SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv), SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1), SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum), SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv), SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1), SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv), SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1), SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv), SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1), SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv), SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1), SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv), SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1), SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0), SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1), SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0), SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum), SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum), SOC_ENUM("Record All Mux", stac9766_record_all_enum), SOC_ENUM("Record Mux", stac9766_record_enum), SOC_ENUM("Mono Mux", stac9766_mono_enum), SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum), }; static int ac97_analog_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct snd_pcm_runtime *runtime = substream->runtime; unsigned short reg; /* enable variable rate audio, disable SPDIF output */ snd_soc_update_bits(codec, AC97_EXTENDED_STATUS, 0x5, 0x1); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) reg = AC97_PCM_FRONT_DAC_RATE; else reg = AC97_PCM_LR_ADC_RATE; return snd_soc_write(codec, reg, runtime->rate); } static int ac97_digital_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct snd_pcm_runtime *runtime = substream->runtime; unsigned short reg; snd_soc_write(codec, AC97_SPDIF, 0x2002); /* Enable VRA and SPDIF out */ snd_soc_update_bits(codec, AC97_EXTENDED_STATUS, 0x5, 0x5); reg = AC97_PCM_FRONT_DAC_RATE; return snd_soc_write(codec, reg, runtime->rate); } static int stac9766_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { switch (level) { case SND_SOC_BIAS_ON: /* full On */ case SND_SOC_BIAS_PREPARE: /* partial On */ case SND_SOC_BIAS_STANDBY: /* Off, with power */ snd_soc_write(codec, AC97_POWERDOWN, 0x0000); break; case SND_SOC_BIAS_OFF: /* Off, without power */ /* disable everything including AC link */ snd_soc_write(codec, AC97_POWERDOWN, 0xffff); break; } return 0; } static int stac9766_codec_resume(struct snd_soc_codec *codec) { struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec); return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID, STAC9766_VENDOR_ID_MASK); } static const struct snd_soc_dai_ops stac9766_dai_ops_analog = { .prepare = ac97_analog_prepare, }; static const struct snd_soc_dai_ops stac9766_dai_ops_digital = { .prepare = ac97_digital_prepare, }; static struct snd_soc_dai_driver stac9766_dai[] = { { .name = "stac9766-hifi-analog", /* stream cababilities */ .playback = { .stream_name = "stac9766 analog", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_48000, .formats = SND_SOC_STD_AC97_FMTS, }, .capture = { .stream_name = "stac9766 analog", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_48000, .formats = SND_SOC_STD_AC97_FMTS, }, /* alsa ops */ .ops = &stac9766_dai_ops_analog, }, { .name = "stac9766-hifi-IEC958", /* stream cababilities */ .playback = { .stream_name = "stac9766 IEC958", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_32000 | \ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, }, /* alsa ops */ .ops = &stac9766_dai_ops_digital, } }; static int stac9766_codec_probe(struct snd_soc_codec *codec) { struct snd_ac97 *ac97; struct regmap *regmap; int ret; ac97 = snd_soc_new_ac97_codec(codec, STAC9766_VENDOR_ID, STAC9766_VENDOR_ID_MASK); if (IS_ERR(ac97)) return PTR_ERR(ac97); regmap = regmap_init_ac97(ac97, &stac9766_regmap_config); if (IS_ERR(regmap)) { ret = PTR_ERR(regmap); goto err_free_ac97; } snd_soc_codec_init_regmap(codec, regmap); snd_soc_codec_set_drvdata(codec, ac97); return 0; err_free_ac97: snd_soc_free_ac97_codec(ac97); return ret; } static int stac9766_codec_remove(struct snd_soc_codec *codec) { struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec); snd_soc_codec_exit_regmap(codec); snd_soc_free_ac97_codec(ac97); return 0; } static struct snd_soc_codec_driver soc_codec_dev_stac9766 = { .component_driver = { .controls = stac9766_snd_ac97_controls, .num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls), }, .set_bias_level = stac9766_set_bias_level, .suspend_bias_off = true, .probe = stac9766_codec_probe, .remove = stac9766_codec_remove, .resume = stac9766_codec_resume, }; static int stac9766_probe(struct platform_device *pdev) { return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai)); } static int stac9766_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } static struct platform_driver stac9766_codec_driver = { .driver = { .name = "stac9766-codec", }, .probe = stac9766_probe, .remove = stac9766_remove, }; module_platform_driver(stac9766_codec_driver); MODULE_DESCRIPTION("ASoC stac9766 driver"); MODULE_AUTHOR("Jon Smirl "); MODULE_LICENSE("GPL");