| /* |
| * stac9766.c -- ALSA SoC STAC9766 codec support |
| * |
| * Copyright 2009 Jon Smirl, Digispeaker |
| * Author: Jon Smirl <jonsmirl@gmail.com> |
| * |
| * 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 <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <linux/device.h> |
| #include <linux/regmap.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/ac97_codec.h> |
| #include <sound/initval.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/tlv.h> |
| |
| #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 const 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 <jonsmirl@gmail.com>"); |
| MODULE_LICENSE("GPL"); |
