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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * stac9766.c -- ALSA SoC STAC9766 codec support4 *5 * Copyright 2009 Jon Smirl, Digispeaker6 * Author: Jon Smirl <jonsmirl@gmail.com>7 *8 * Features:-9 *10 * o Support for AC97 Codec, S/PDIF11 */12 13#include <linux/init.h>14#include <linux/slab.h>15#include <linux/module.h>16#include <linux/device.h>17#include <linux/regmap.h>18#include <sound/core.h>19#include <sound/pcm.h>20#include <sound/ac97_codec.h>21#include <sound/initval.h>22#include <sound/pcm_params.h>23#include <sound/soc.h>24#include <sound/tlv.h>25 26#define STAC9766_VENDOR_ID 0x8384766627#define STAC9766_VENDOR_ID_MASK 0xffffffff28 29#define AC97_STAC_DA_CONTROL 0x6A30#define AC97_STAC_ANALOG_SPECIAL 0x6E31#define AC97_STAC_STEREO_MIC 0x7832 33static const struct reg_default stac9766_reg_defaults[] = {34 { 0x02, 0x8000 },35 { 0x04, 0x8000 },36 { 0x06, 0x8000 },37 { 0x0a, 0x0000 },38 { 0x0c, 0x8008 },39 { 0x0e, 0x8008 },40 { 0x10, 0x8808 },41 { 0x12, 0x8808 },42 { 0x14, 0x8808 },43 { 0x16, 0x8808 },44 { 0x18, 0x8808 },45 { 0x1a, 0x0000 },46 { 0x1c, 0x8000 },47 { 0x20, 0x0000 },48 { 0x22, 0x0000 },49 { 0x28, 0x0a05 },50 { 0x2c, 0xbb80 },51 { 0x32, 0xbb80 },52 { 0x3a, 0x2000 },53 { 0x3e, 0x0100 },54 { 0x4c, 0x0300 },55 { 0x4e, 0xffff },56 { 0x50, 0x0000 },57 { 0x52, 0x0000 },58 { 0x54, 0x0000 },59 { 0x6a, 0x0000 },60 { 0x6e, 0x1000 },61 { 0x72, 0x0000 },62 { 0x78, 0x0000 },63};64 65static const struct regmap_config stac9766_regmap_config = {66 .reg_bits = 16,67 .reg_stride = 2,68 .val_bits = 16,69 .max_register = 0x78,70 .cache_type = REGCACHE_MAPLE,71 72 .volatile_reg = regmap_ac97_default_volatile,73 74 .reg_defaults = stac9766_reg_defaults,75 .num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults),76};77 78static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",79 "Line", "Stereo Mix", "Mono Mix", "Phone"};80static const char *stac9766_mono_mux[] = {"Mix", "Mic"};81static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};82static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};83static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};84static const char *stac9766_record_all_mux[] = {"All analog",85 "Analog plus DAC"};86static const char *stac9766_boost1[] = {"0dB", "10dB"};87static const char *stac9766_boost2[] = {"0dB", "20dB"};88static const char *stac9766_stereo_mic[] = {"Off", "On"};89 90static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,91 AC97_REC_SEL, 8, 0, stac9766_record_mux);92static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,93 AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);94static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,95 AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);96static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,97 AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);98static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,99 AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);100static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,101 AC97_STAC_ANALOG_SPECIAL, 12,102 stac9766_record_all_mux);103static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,104 AC97_MIC, 6, stac9766_boost1); /* 0/10dB */105static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,106 AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */107static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,108 AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);109 110static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0);111static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0, 150, 0);112static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500, 300, 0);113static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450, 150, 0);114 115static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {116 SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),117 SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),118 SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,119 master_tlv),120 SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),121 SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,122 master_tlv),123 SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),124 125 SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),126 SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),127 128 129 SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),130 SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),131 SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),132 SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),133 SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),134 135 SOC_ENUM("Mic Boost1", stac9766_boost1_enum),136 SOC_ENUM("Mic Boost2", stac9766_boost2_enum),137 SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),138 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),139 SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),140 141 SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),142 SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),143 SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),144 SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),145 SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),146 SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),147 SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),148 SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),149 150 SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),151 SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),152 SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),153 SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),154 SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),155 156 SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),157 SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),158 SOC_ENUM("Record All Mux", stac9766_record_all_enum),159 SOC_ENUM("Record Mux", stac9766_record_enum),160 SOC_ENUM("Mono Mux", stac9766_mono_enum),161 SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),162};163 164static int ac97_analog_prepare(struct snd_pcm_substream *substream,165 struct snd_soc_dai *dai)166{167 struct snd_soc_component *component = dai->component;168 struct snd_pcm_runtime *runtime = substream->runtime;169 unsigned short reg;170 171 /* enable variable rate audio, disable SPDIF output */172 snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x1);173 174 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)175 reg = AC97_PCM_FRONT_DAC_RATE;176 else177 reg = AC97_PCM_LR_ADC_RATE;178 179 return snd_soc_component_write(component, reg, runtime->rate);180}181 182static int ac97_digital_prepare(struct snd_pcm_substream *substream,183 struct snd_soc_dai *dai)184{185 struct snd_soc_component *component = dai->component;186 struct snd_pcm_runtime *runtime = substream->runtime;187 unsigned short reg;188 189 snd_soc_component_write(component, AC97_SPDIF, 0x2002);190 191 /* Enable VRA and SPDIF out */192 snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x5);193 194 reg = AC97_PCM_FRONT_DAC_RATE;195 196 return snd_soc_component_write(component, reg, runtime->rate);197}198 199static int stac9766_set_bias_level(struct snd_soc_component *component,200 enum snd_soc_bias_level level)201{202 switch (level) {203 case SND_SOC_BIAS_ON: /* full On */204 case SND_SOC_BIAS_PREPARE: /* partial On */205 case SND_SOC_BIAS_STANDBY: /* Off, with power */206 snd_soc_component_write(component, AC97_POWERDOWN, 0x0000);207 break;208 case SND_SOC_BIAS_OFF: /* Off, without power */209 /* disable everything including AC link */210 snd_soc_component_write(component, AC97_POWERDOWN, 0xffff);211 break;212 }213 return 0;214}215 216static int stac9766_component_resume(struct snd_soc_component *component)217{218 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);219 220 return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,221 STAC9766_VENDOR_ID_MASK);222}223 224static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {225 .prepare = ac97_analog_prepare,226};227 228static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {229 .prepare = ac97_digital_prepare,230};231 232static struct snd_soc_dai_driver stac9766_dai[] = {233{234 .name = "stac9766-hifi-analog",235 236 /* stream cababilities */237 .playback = {238 .stream_name = "stac9766 analog",239 .channels_min = 1,240 .channels_max = 2,241 .rates = SNDRV_PCM_RATE_8000_48000,242 .formats = SND_SOC_STD_AC97_FMTS,243 },244 .capture = {245 .stream_name = "stac9766 analog",246 .channels_min = 1,247 .channels_max = 2,248 .rates = SNDRV_PCM_RATE_8000_48000,249 .formats = SND_SOC_STD_AC97_FMTS,250 },251 /* alsa ops */252 .ops = &stac9766_dai_ops_analog,253},254{255 .name = "stac9766-hifi-IEC958",256 257 /* stream cababilities */258 .playback = {259 .stream_name = "stac9766 IEC958",260 .channels_min = 1,261 .channels_max = 2,262 .rates = SNDRV_PCM_RATE_32000 | \263 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,264 .formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,265 },266 /* alsa ops */267 .ops = &stac9766_dai_ops_digital,268}269};270 271static int stac9766_component_probe(struct snd_soc_component *component)272{273 struct snd_ac97 *ac97;274 struct regmap *regmap;275 int ret;276 277 ac97 = snd_soc_new_ac97_component(component, STAC9766_VENDOR_ID,278 STAC9766_VENDOR_ID_MASK);279 if (IS_ERR(ac97))280 return PTR_ERR(ac97);281 282 regmap = regmap_init_ac97(ac97, &stac9766_regmap_config);283 if (IS_ERR(regmap)) {284 ret = PTR_ERR(regmap);285 goto err_free_ac97;286 }287 288 snd_soc_component_init_regmap(component, regmap);289 snd_soc_component_set_drvdata(component, ac97);290 291 return 0;292err_free_ac97:293 snd_soc_free_ac97_component(ac97);294 return ret;295}296 297static void stac9766_component_remove(struct snd_soc_component *component)298{299 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);300 301 snd_soc_component_exit_regmap(component);302 snd_soc_free_ac97_component(ac97);303}304 305static const struct snd_soc_component_driver soc_component_dev_stac9766 = {306 .controls = stac9766_snd_ac97_controls,307 .num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls),308 .set_bias_level = stac9766_set_bias_level,309 .probe = stac9766_component_probe,310 .remove = stac9766_component_remove,311 .resume = stac9766_component_resume,312 .suspend_bias_off = 1,313 .idle_bias_on = 1,314 .use_pmdown_time = 1,315 .endianness = 1,316};317 318static int stac9766_probe(struct platform_device *pdev)319{320 return devm_snd_soc_register_component(&pdev->dev,321 &soc_component_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));322}323 324static struct platform_driver stac9766_codec_driver = {325 .driver = {326 .name = "stac9766-codec",327 },328 329 .probe = stac9766_probe,330};331 332module_platform_driver(stac9766_codec_driver);333 334MODULE_DESCRIPTION("ASoC stac9766 driver");335MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");336MODULE_LICENSE("GPL");337