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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * wm9705.c -- ALSA Soc WM9705 codec support4 *5 * Copyright 2008 Ian Molton <spyro@f2s.com>6 */7 8#include <linux/init.h>9#include <linux/slab.h>10#include <linux/mfd/wm97xx.h>11#include <linux/module.h>12#include <linux/kernel.h>13#include <linux/device.h>14#include <linux/regmap.h>15#include <sound/core.h>16#include <sound/pcm.h>17#include <sound/ac97_codec.h>18#include <sound/ac97/codec.h>19#include <sound/ac97/compat.h>20#include <sound/initval.h>21#include <sound/soc.h>22 23#define WM9705_VENDOR_ID 0x574d4c0524#define WM9705_VENDOR_ID_MASK 0xffffffff25 26struct wm9705_priv {27 struct snd_ac97 *ac97;28 struct wm97xx_platform_data *mfd_pdata;29};30 31static const struct reg_default wm9705_reg_defaults[] = {32 { 0x02, 0x8000 },33 { 0x04, 0x8000 },34 { 0x06, 0x8000 },35 { 0x0a, 0x8000 },36 { 0x0c, 0x8008 },37 { 0x0e, 0x8008 },38 { 0x10, 0x8808 },39 { 0x12, 0x8808 },40 { 0x14, 0x8808 },41 { 0x16, 0x8808 },42 { 0x18, 0x8808 },43 { 0x1a, 0x0000 },44 { 0x1c, 0x8000 },45 { 0x20, 0x0000 },46 { 0x22, 0x0000 },47 { 0x26, 0x000f },48 { 0x28, 0x0605 },49 { 0x2a, 0x0000 },50 { 0x2c, 0xbb80 },51 { 0x32, 0xbb80 },52 { 0x34, 0x2000 },53 { 0x5a, 0x0000 },54 { 0x5c, 0x0000 },55 { 0x72, 0x0808 },56 { 0x74, 0x0000 },57 { 0x76, 0x0006 },58 { 0x78, 0x0000 },59 { 0x7a, 0x0000 },60};61 62static const struct regmap_config wm9705_regmap_config = {63 .reg_bits = 16,64 .reg_stride = 2,65 .val_bits = 16,66 .max_register = 0x7e,67 .cache_type = REGCACHE_MAPLE,68 69 .volatile_reg = regmap_ac97_default_volatile,70 71 .reg_defaults = wm9705_reg_defaults,72 .num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults),73};74 75static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = {76 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),77 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),78 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),79 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),80 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),81 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),82 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),83 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),84 SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),85 SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),86 SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),87 SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),88 SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),89 SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),90 SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),91 SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),92};93 94static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};95static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",96 "Line", "Stereo Mix", "Mono Mix", "Phone"};97 98static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic,99 AC97_GENERAL_PURPOSE, 8, wm9705_mic);100static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l,101 AC97_REC_SEL, 8, wm9705_rec_sel);102static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r,103 AC97_REC_SEL, 0, wm9705_rec_sel);104 105/* Headphone Mixer */106static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {107 SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),108 SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),109 SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),110 SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),111 SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),112};113 114/* Mic source */115static const struct snd_kcontrol_new wm9705_mic_src_controls =116 SOC_DAPM_ENUM("Route", wm9705_enum_mic);117 118/* Capture source */119static const struct snd_kcontrol_new wm9705_capture_selectl_controls =120 SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);121static const struct snd_kcontrol_new wm9705_capture_selectr_controls =122 SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);123 124/* DAPM widgets */125static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {126 SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,127 &wm9705_mic_src_controls),128 SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,129 &wm9705_capture_selectl_controls),130 SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,131 &wm9705_capture_selectr_controls),132 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",133 SND_SOC_NOPM, 0, 0),134 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",135 SND_SOC_NOPM, 0, 0),136 SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,137 &wm9705_hp_mixer_controls[0],138 ARRAY_SIZE(wm9705_hp_mixer_controls)),139 SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),140 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),141 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),142 SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),143 SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),144 SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),145 SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),146 SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),147 SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),148 SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),149 SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),150 SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),151 SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),152 SND_SOC_DAPM_OUTPUT("HPOUTL"),153 SND_SOC_DAPM_OUTPUT("HPOUTR"),154 SND_SOC_DAPM_OUTPUT("LOUT"),155 SND_SOC_DAPM_OUTPUT("ROUT"),156 SND_SOC_DAPM_OUTPUT("MONOOUT"),157 SND_SOC_DAPM_INPUT("PHONE"),158 SND_SOC_DAPM_INPUT("LINEINL"),159 SND_SOC_DAPM_INPUT("LINEINR"),160 SND_SOC_DAPM_INPUT("CDINL"),161 SND_SOC_DAPM_INPUT("CDINR"),162 SND_SOC_DAPM_INPUT("PCBEEP"),163 SND_SOC_DAPM_INPUT("MIC1"),164 SND_SOC_DAPM_INPUT("MIC2"),165};166 167/* Audio map168 * WM9705 has no switches to disable the route from the inputs to the HP mixer169 * so in order to prevent active inputs from forcing the audio outputs to be170 * constantly enabled, we use the mutes on those inputs to simulate such171 * controls.172 */173static const struct snd_soc_dapm_route wm9705_audio_map[] = {174 /* HP mixer */175 {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},176 {"HP Mixer", "CD Playback Switch", "CD PGA"},177 {"HP Mixer", "Mic Playback Switch", "Mic PGA"},178 {"HP Mixer", "Phone Playback Switch", "Phone PGA"},179 {"HP Mixer", "Line Playback Switch", "Line PGA"},180 {"HP Mixer", NULL, "Left DAC"},181 {"HP Mixer", NULL, "Right DAC"},182 183 /* mono mixer */184 {"Mono Mixer", NULL, "HP Mixer"},185 186 /* outputs */187 {"Headphone PGA", NULL, "HP Mixer"},188 {"HPOUTL", NULL, "Headphone PGA"},189 {"HPOUTR", NULL, "Headphone PGA"},190 {"Line out PGA", NULL, "HP Mixer"},191 {"LOUT", NULL, "Line out PGA"},192 {"ROUT", NULL, "Line out PGA"},193 {"Mono PGA", NULL, "Mono Mixer"},194 {"MONOOUT", NULL, "Mono PGA"},195 196 /* inputs */197 {"CD PGA", NULL, "CDINL"},198 {"CD PGA", NULL, "CDINR"},199 {"Line PGA", NULL, "LINEINL"},200 {"Line PGA", NULL, "LINEINR"},201 {"Phone PGA", NULL, "PHONE"},202 {"Mic Source", "Mic 1", "MIC1"},203 {"Mic Source", "Mic 2", "MIC2"},204 {"Mic PGA", NULL, "Mic Source"},205 {"PCBEEP PGA", NULL, "PCBEEP"},206 207 /* Left capture selector */208 {"Left Capture Source", "Mic", "Mic Source"},209 {"Left Capture Source", "CD", "CDINL"},210 {"Left Capture Source", "Line", "LINEINL"},211 {"Left Capture Source", "Stereo Mix", "HP Mixer"},212 {"Left Capture Source", "Mono Mix", "HP Mixer"},213 {"Left Capture Source", "Phone", "PHONE"},214 215 /* Right capture source */216 {"Right Capture Source", "Mic", "Mic Source"},217 {"Right Capture Source", "CD", "CDINR"},218 {"Right Capture Source", "Line", "LINEINR"},219 {"Right Capture Source", "Stereo Mix", "HP Mixer"},220 {"Right Capture Source", "Mono Mix", "HP Mixer"},221 {"Right Capture Source", "Phone", "PHONE"},222 223 {"ADC PGA", NULL, "Left Capture Source"},224 {"ADC PGA", NULL, "Right Capture Source"},225 226 /* ADC's */227 {"Left ADC", NULL, "ADC PGA"},228 {"Right ADC", NULL, "ADC PGA"},229};230 231static int ac97_prepare(struct snd_pcm_substream *substream,232 struct snd_soc_dai *dai)233{234 struct snd_soc_component *component = dai->component;235 int reg;236 237 snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x1, 0x1);238 239 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)240 reg = AC97_PCM_FRONT_DAC_RATE;241 else242 reg = AC97_PCM_LR_ADC_RATE;243 244 return snd_soc_component_write(component, reg, substream->runtime->rate);245}246 247#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \248 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \249 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \250 SNDRV_PCM_RATE_48000)251 252static const struct snd_soc_dai_ops wm9705_dai_ops = {253 .prepare = ac97_prepare,254};255 256static struct snd_soc_dai_driver wm9705_dai[] = {257 {258 .name = "wm9705-hifi",259 .playback = {260 .stream_name = "HiFi Playback",261 .channels_min = 1,262 .channels_max = 2,263 .rates = WM9705_AC97_RATES,264 .formats = SND_SOC_STD_AC97_FMTS,265 },266 .capture = {267 .stream_name = "HiFi Capture",268 .channels_min = 1,269 .channels_max = 2,270 .rates = WM9705_AC97_RATES,271 .formats = SND_SOC_STD_AC97_FMTS,272 },273 .ops = &wm9705_dai_ops,274 },275 {276 .name = "wm9705-aux",277 .playback = {278 .stream_name = "Aux Playback",279 .channels_min = 1,280 .channels_max = 1,281 .rates = WM9705_AC97_RATES,282 .formats = SNDRV_PCM_FMTBIT_S16_LE,283 },284 }285};286 287#ifdef CONFIG_PM288static int wm9705_soc_suspend(struct snd_soc_component *component)289{290 regcache_cache_bypass(component->regmap, true);291 snd_soc_component_write(component, AC97_POWERDOWN, 0xffff);292 regcache_cache_bypass(component->regmap, false);293 294 return 0;295}296 297static int wm9705_soc_resume(struct snd_soc_component *component)298{299 struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component);300 int ret;301 302 ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID,303 WM9705_VENDOR_ID_MASK);304 if (ret < 0)305 return ret;306 307 snd_soc_component_cache_sync(component);308 309 return 0;310}311#else312#define wm9705_soc_suspend NULL313#define wm9705_soc_resume NULL314#endif315 316static int wm9705_soc_probe(struct snd_soc_component *component)317{318 struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component);319 struct regmap *regmap;320 321 if (wm9705->mfd_pdata) {322 wm9705->ac97 = wm9705->mfd_pdata->ac97;323 regmap = wm9705->mfd_pdata->regmap;324 } else if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS)) {325 wm9705->ac97 = snd_soc_new_ac97_component(component, WM9705_VENDOR_ID,326 WM9705_VENDOR_ID_MASK);327 if (IS_ERR(wm9705->ac97)) {328 dev_err(component->dev, "Failed to register AC97 codec\n");329 return PTR_ERR(wm9705->ac97);330 }331 332 regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);333 if (IS_ERR(regmap)) {334 snd_soc_free_ac97_component(wm9705->ac97);335 return PTR_ERR(regmap);336 }337 } else {338 return -ENXIO;339 }340 341 snd_soc_component_set_drvdata(component, wm9705->ac97);342 snd_soc_component_init_regmap(component, regmap);343 344 return 0;345}346 347static void wm9705_soc_remove(struct snd_soc_component *component)348{349 struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component);350 351 if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS) && !wm9705->mfd_pdata) {352 snd_soc_component_exit_regmap(component);353 snd_soc_free_ac97_component(wm9705->ac97);354 }355}356 357static const struct snd_soc_component_driver soc_component_dev_wm9705 = {358 .probe = wm9705_soc_probe,359 .remove = wm9705_soc_remove,360 .suspend = wm9705_soc_suspend,361 .resume = wm9705_soc_resume,362 .controls = wm9705_snd_ac97_controls,363 .num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls),364 .dapm_widgets = wm9705_dapm_widgets,365 .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets),366 .dapm_routes = wm9705_audio_map,367 .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map),368 .idle_bias_on = 1,369 .use_pmdown_time = 1,370 .endianness = 1,371};372 373static int wm9705_probe(struct platform_device *pdev)374{375 struct wm9705_priv *wm9705;376 377 wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);378 if (wm9705 == NULL)379 return -ENOMEM;380 381 wm9705->mfd_pdata = dev_get_platdata(&pdev->dev);382 platform_set_drvdata(pdev, wm9705);383 384 return devm_snd_soc_register_component(&pdev->dev,385 &soc_component_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));386}387 388static struct platform_driver wm9705_codec_driver = {389 .driver = {390 .name = "wm9705-codec",391 },392 393 .probe = wm9705_probe,394};395 396module_platform_driver(wm9705_codec_driver);397 398MODULE_DESCRIPTION("ASoC WM9705 driver");399MODULE_AUTHOR("Ian Molton");400MODULE_LICENSE("GPL v2");401