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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * ad1980.c -- ALSA Soc AD1980 codec support4 *5 * Copyright: Analog Devices Inc.6 * Author: Roy Huang <roy.huang@analog.com>7 * Cliff Cai <cliff.cai@analog.com>8 */9 10/*11 * WARNING:12 *13 * Because Analog Devices Inc. discontinued the ad1980 sound chip since14 * Sep. 2009, this ad1980 driver is not maintained, tested and supported15 * by ADI now.16 */17 18#include <linux/init.h>19#include <linux/slab.h>20#include <linux/module.h>21#include <linux/kernel.h>22#include <linux/device.h>23#include <linux/regmap.h>24#include <sound/core.h>25#include <sound/pcm.h>26#include <sound/ac97_codec.h>27#include <sound/initval.h>28#include <sound/soc.h>29 30static const struct reg_default ad1980_reg_defaults[] = {31 { 0x02, 0x8000 },32 { 0x04, 0x8000 },33 { 0x06, 0x8000 },34 { 0x0c, 0x8008 },35 { 0x0e, 0x8008 },36 { 0x10, 0x8808 },37 { 0x12, 0x8808 },38 { 0x16, 0x8808 },39 { 0x18, 0x8808 },40 { 0x1a, 0x0000 },41 { 0x1c, 0x8000 },42 { 0x20, 0x0000 },43 { 0x28, 0x03c7 },44 { 0x2c, 0xbb80 },45 { 0x2e, 0xbb80 },46 { 0x30, 0xbb80 },47 { 0x32, 0xbb80 },48 { 0x36, 0x8080 },49 { 0x38, 0x8080 },50 { 0x3a, 0x2000 },51 { 0x60, 0x0000 },52 { 0x62, 0x0000 },53 { 0x72, 0x0000 },54 { 0x74, 0x1001 },55 { 0x76, 0x0000 },56};57 58static bool ad1980_readable_reg(struct device *dev, unsigned int reg)59{60 switch (reg) {61 case AC97_RESET ... AC97_MASTER_MONO:62 case AC97_PHONE ... AC97_CD:63 case AC97_AUX ... AC97_GENERAL_PURPOSE:64 case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE:65 case AC97_SPDIF:66 case AC97_CODEC_CLASS_REV:67 case AC97_PCI_SVID:68 case AC97_AD_CODEC_CFG:69 case AC97_AD_JACK_SPDIF:70 case AC97_AD_SERIAL_CFG:71 case AC97_VENDOR_ID1:72 case AC97_VENDOR_ID2:73 return true;74 default:75 return false;76 }77}78 79static bool ad1980_writeable_reg(struct device *dev, unsigned int reg)80{81 switch (reg) {82 case AC97_VENDOR_ID1:83 case AC97_VENDOR_ID2:84 return false;85 default:86 return ad1980_readable_reg(dev, reg);87 }88}89 90static const struct regmap_config ad1980_regmap_config = {91 .reg_bits = 16,92 .reg_stride = 2,93 .val_bits = 16,94 .max_register = 0x7e,95 .cache_type = REGCACHE_MAPLE,96 97 .volatile_reg = regmap_ac97_default_volatile,98 .readable_reg = ad1980_readable_reg,99 .writeable_reg = ad1980_writeable_reg,100 101 .reg_defaults = ad1980_reg_defaults,102 .num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults),103};104 105static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",106 "Stereo Mix", "Mono Mix", "Phone"};107 108static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src,109 AC97_REC_SEL, 8, 0, ad1980_rec_sel);110 111static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {112SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),113SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),114 115SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),116SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),117 118SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),119SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),120 121SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),122SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),123 124SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),125SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),126 127SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),128SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),129 130SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),131SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),132 133SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),134SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),135 136SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),137SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),138 139SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),140SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),141 142SOC_ENUM("Capture Source", ad1980_cap_src),143 144SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),145};146 147static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {148SND_SOC_DAPM_INPUT("MIC1"),149SND_SOC_DAPM_INPUT("MIC2"),150SND_SOC_DAPM_INPUT("CD_L"),151SND_SOC_DAPM_INPUT("CD_R"),152SND_SOC_DAPM_INPUT("AUX_L"),153SND_SOC_DAPM_INPUT("AUX_R"),154SND_SOC_DAPM_INPUT("LINE_IN_L"),155SND_SOC_DAPM_INPUT("LINE_IN_R"),156 157SND_SOC_DAPM_OUTPUT("LFE_OUT"),158SND_SOC_DAPM_OUTPUT("CENTER_OUT"),159SND_SOC_DAPM_OUTPUT("LINE_OUT_L"),160SND_SOC_DAPM_OUTPUT("LINE_OUT_R"),161SND_SOC_DAPM_OUTPUT("MONO_OUT"),162SND_SOC_DAPM_OUTPUT("HP_OUT_L"),163SND_SOC_DAPM_OUTPUT("HP_OUT_R"),164};165 166static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {167 { "Capture", NULL, "MIC1" },168 { "Capture", NULL, "MIC2" },169 { "Capture", NULL, "CD_L" },170 { "Capture", NULL, "CD_R" },171 { "Capture", NULL, "AUX_L" },172 { "Capture", NULL, "AUX_R" },173 { "Capture", NULL, "LINE_IN_L" },174 { "Capture", NULL, "LINE_IN_R" },175 176 { "LFE_OUT", NULL, "Playback" },177 { "CENTER_OUT", NULL, "Playback" },178 { "LINE_OUT_L", NULL, "Playback" },179 { "LINE_OUT_R", NULL, "Playback" },180 { "MONO_OUT", NULL, "Playback" },181 { "HP_OUT_L", NULL, "Playback" },182 { "HP_OUT_R", NULL, "Playback" },183};184 185static struct snd_soc_dai_driver ad1980_dai = {186 .name = "ad1980-hifi",187 .playback = {188 .stream_name = "Playback",189 .channels_min = 2,190 .channels_max = 6,191 .rates = SNDRV_PCM_RATE_48000,192 .formats = SND_SOC_STD_AC97_FMTS, },193 .capture = {194 .stream_name = "Capture",195 .channels_min = 2,196 .channels_max = 2,197 .rates = SNDRV_PCM_RATE_48000,198 .formats = SND_SOC_STD_AC97_FMTS, },199};200 201#define AD1980_VENDOR_ID 0x41445300202#define AD1980_VENDOR_MASK 0xffffff00203 204static int ad1980_reset(struct snd_soc_component *component, int try_warm)205{206 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);207 unsigned int retry_cnt = 0;208 int ret;209 210 do {211 ret = snd_ac97_reset(ac97, true, AD1980_VENDOR_ID,212 AD1980_VENDOR_MASK);213 if (ret >= 0)214 return 0;215 216 /*217 * Set bit 16slot in register 74h, then every slot will has only218 * 16 bits. This command is sent out in 20bit mode, in which219 * case the first nibble of data is eaten by the addr. (Tag is220 * always 16 bit)221 */222 snd_soc_component_write(component, AC97_AD_SERIAL_CFG, 0x9900);223 224 } while (retry_cnt++ < 10);225 226 dev_err(component->dev, "Failed to reset: AC97 link error\n");227 228 return -EIO;229}230 231static int ad1980_soc_probe(struct snd_soc_component *component)232{233 struct snd_ac97 *ac97;234 struct regmap *regmap;235 int ret;236 u16 vendor_id2;237 u16 ext_status;238 239 ac97 = snd_soc_new_ac97_component(component, 0, 0);240 if (IS_ERR(ac97)) {241 ret = PTR_ERR(ac97);242 dev_err(component->dev, "Failed to register AC97 component: %d\n", ret);243 return ret;244 }245 246 regmap = regmap_init_ac97(ac97, &ad1980_regmap_config);247 if (IS_ERR(regmap)) {248 ret = PTR_ERR(regmap);249 goto err_free_ac97;250 }251 252 snd_soc_component_init_regmap(component, regmap);253 snd_soc_component_set_drvdata(component, ac97);254 255 ret = ad1980_reset(component, 0);256 if (ret < 0)257 goto reset_err;258 259 vendor_id2 = snd_soc_component_read(component, AC97_VENDOR_ID2);260 if (vendor_id2 == 0x5374) {261 dev_warn(component->dev,262 "Found AD1981 - only 2/2 IN/OUT Channels supported\n");263 }264 265 /* unmute captures and playbacks volume */266 snd_soc_component_write(component, AC97_MASTER, 0x0000);267 snd_soc_component_write(component, AC97_PCM, 0x0000);268 snd_soc_component_write(component, AC97_REC_GAIN, 0x0000);269 snd_soc_component_write(component, AC97_CENTER_LFE_MASTER, 0x0000);270 snd_soc_component_write(component, AC97_SURROUND_MASTER, 0x0000);271 272 /*power on LFE/CENTER/Surround DACs*/273 ext_status = snd_soc_component_read(component, AC97_EXTENDED_STATUS);274 snd_soc_component_write(component, AC97_EXTENDED_STATUS, ext_status&~0x3800);275 276 return 0;277 278reset_err:279 snd_soc_component_exit_regmap(component);280err_free_ac97:281 snd_soc_free_ac97_component(ac97);282 return ret;283}284 285static void ad1980_soc_remove(struct snd_soc_component *component)286{287 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);288 289 snd_soc_component_exit_regmap(component);290 snd_soc_free_ac97_component(ac97);291}292 293static const struct snd_soc_component_driver soc_component_dev_ad1980 = {294 .probe = ad1980_soc_probe,295 .remove = ad1980_soc_remove,296 .controls = ad1980_snd_ac97_controls,297 .num_controls = ARRAY_SIZE(ad1980_snd_ac97_controls),298 .dapm_widgets = ad1980_dapm_widgets,299 .num_dapm_widgets = ARRAY_SIZE(ad1980_dapm_widgets),300 .dapm_routes = ad1980_dapm_routes,301 .num_dapm_routes = ARRAY_SIZE(ad1980_dapm_routes),302 .idle_bias_on = 1,303 .use_pmdown_time = 1,304 .endianness = 1,305};306 307static int ad1980_probe(struct platform_device *pdev)308{309 return devm_snd_soc_register_component(&pdev->dev,310 &soc_component_dev_ad1980, &ad1980_dai, 1);311}312 313static struct platform_driver ad1980_codec_driver = {314 .driver = {315 .name = "ad1980",316 },317 318 .probe = ad1980_probe,319};320 321module_platform_driver(ad1980_codec_driver);322 323MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");324MODULE_AUTHOR("Roy Huang, Cliff Cai");325MODULE_LICENSE("GPL");326