1 /* 2 * wm9705.c -- ALSA Soc WM9705 codec support 3 * 4 * Copyright 2008 Ian Molton <spyro@f2s.com> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; Version 2 of the License only. 9 * 10 */ 11 12 #include <linux/init.h> 13 #include <linux/slab.h> 14 #include <linux/module.h> 15 #include <linux/kernel.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/soc.h> 23 24 #define WM9705_VENDOR_ID 0x574d4c05 25 #define WM9705_VENDOR_ID_MASK 0xffffffff 26 27 static const struct reg_default wm9705_reg_defaults[] = { 28 { 0x02, 0x8000 }, 29 { 0x04, 0x8000 }, 30 { 0x06, 0x8000 }, 31 { 0x0a, 0x8000 }, 32 { 0x0c, 0x8008 }, 33 { 0x0e, 0x8008 }, 34 { 0x10, 0x8808 }, 35 { 0x12, 0x8808 }, 36 { 0x14, 0x8808 }, 37 { 0x16, 0x8808 }, 38 { 0x18, 0x8808 }, 39 { 0x1a, 0x0000 }, 40 { 0x1c, 0x8000 }, 41 { 0x20, 0x0000 }, 42 { 0x22, 0x0000 }, 43 { 0x26, 0x000f }, 44 { 0x28, 0x0605 }, 45 { 0x2a, 0x0000 }, 46 { 0x2c, 0xbb80 }, 47 { 0x32, 0xbb80 }, 48 { 0x34, 0x2000 }, 49 { 0x5a, 0x0000 }, 50 { 0x5c, 0x0000 }, 51 { 0x72, 0x0808 }, 52 { 0x74, 0x0000 }, 53 { 0x76, 0x0006 }, 54 { 0x78, 0x0000 }, 55 { 0x7a, 0x0000 }, 56 }; 57 58 static const struct regmap_config wm9705_regmap_config = { 59 .reg_bits = 16, 60 .reg_stride = 2, 61 .val_bits = 16, 62 .max_register = 0x7e, 63 .cache_type = REGCACHE_RBTREE, 64 65 .volatile_reg = regmap_ac97_default_volatile, 66 67 .reg_defaults = wm9705_reg_defaults, 68 .num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults), 69 }; 70 71 static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = { 72 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1), 73 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1), 74 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), 75 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), 76 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), 77 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), 78 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), 79 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), 80 SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1), 81 SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1), 82 SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1), 83 SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1), 84 SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1), 85 SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0), 86 SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0), 87 SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1), 88 }; 89 90 static const char *wm9705_mic[] = {"Mic 1", "Mic 2"}; 91 static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC", 92 "Line", "Stereo Mix", "Mono Mix", "Phone"}; 93 94 static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic, 95 AC97_GENERAL_PURPOSE, 8, wm9705_mic); 96 static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l, 97 AC97_REC_SEL, 8, wm9705_rec_sel); 98 static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r, 99 AC97_REC_SEL, 0, wm9705_rec_sel); 100 101 /* Headphone Mixer */ 102 static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = { 103 SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1), 104 SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1), 105 SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1), 106 SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1), 107 SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1), 108 }; 109 110 /* Mic source */ 111 static const struct snd_kcontrol_new wm9705_mic_src_controls = 112 SOC_DAPM_ENUM("Route", wm9705_enum_mic); 113 114 /* Capture source */ 115 static const struct snd_kcontrol_new wm9705_capture_selectl_controls = 116 SOC_DAPM_ENUM("Route", wm9705_enum_rec_l); 117 static const struct snd_kcontrol_new wm9705_capture_selectr_controls = 118 SOC_DAPM_ENUM("Route", wm9705_enum_rec_r); 119 120 /* DAPM widgets */ 121 static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = { 122 SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0, 123 &wm9705_mic_src_controls), 124 SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0, 125 &wm9705_capture_selectl_controls), 126 SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0, 127 &wm9705_capture_selectr_controls), 128 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", 129 SND_SOC_NOPM, 0, 0), 130 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", 131 SND_SOC_NOPM, 0, 0), 132 SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0, 133 &wm9705_hp_mixer_controls[0], 134 ARRAY_SIZE(wm9705_hp_mixer_controls)), 135 SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), 136 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0), 137 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0), 138 SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 139 SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 140 SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 141 SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 142 SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 143 SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 144 SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 145 SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 146 SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 147 SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0), 148 SND_SOC_DAPM_OUTPUT("HPOUTL"), 149 SND_SOC_DAPM_OUTPUT("HPOUTR"), 150 SND_SOC_DAPM_OUTPUT("LOUT"), 151 SND_SOC_DAPM_OUTPUT("ROUT"), 152 SND_SOC_DAPM_OUTPUT("MONOOUT"), 153 SND_SOC_DAPM_INPUT("PHONE"), 154 SND_SOC_DAPM_INPUT("LINEINL"), 155 SND_SOC_DAPM_INPUT("LINEINR"), 156 SND_SOC_DAPM_INPUT("CDINL"), 157 SND_SOC_DAPM_INPUT("CDINR"), 158 SND_SOC_DAPM_INPUT("PCBEEP"), 159 SND_SOC_DAPM_INPUT("MIC1"), 160 SND_SOC_DAPM_INPUT("MIC2"), 161 }; 162 163 /* Audio map 164 * WM9705 has no switches to disable the route from the inputs to the HP mixer 165 * so in order to prevent active inputs from forcing the audio outputs to be 166 * constantly enabled, we use the mutes on those inputs to simulate such 167 * controls. 168 */ 169 static const struct snd_soc_dapm_route wm9705_audio_map[] = { 170 /* HP mixer */ 171 {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"}, 172 {"HP Mixer", "CD Playback Switch", "CD PGA"}, 173 {"HP Mixer", "Mic Playback Switch", "Mic PGA"}, 174 {"HP Mixer", "Phone Playback Switch", "Phone PGA"}, 175 {"HP Mixer", "Line Playback Switch", "Line PGA"}, 176 {"HP Mixer", NULL, "Left DAC"}, 177 {"HP Mixer", NULL, "Right DAC"}, 178 179 /* mono mixer */ 180 {"Mono Mixer", NULL, "HP Mixer"}, 181 182 /* outputs */ 183 {"Headphone PGA", NULL, "HP Mixer"}, 184 {"HPOUTL", NULL, "Headphone PGA"}, 185 {"HPOUTR", NULL, "Headphone PGA"}, 186 {"Line out PGA", NULL, "HP Mixer"}, 187 {"LOUT", NULL, "Line out PGA"}, 188 {"ROUT", NULL, "Line out PGA"}, 189 {"Mono PGA", NULL, "Mono Mixer"}, 190 {"MONOOUT", NULL, "Mono PGA"}, 191 192 /* inputs */ 193 {"CD PGA", NULL, "CDINL"}, 194 {"CD PGA", NULL, "CDINR"}, 195 {"Line PGA", NULL, "LINEINL"}, 196 {"Line PGA", NULL, "LINEINR"}, 197 {"Phone PGA", NULL, "PHONE"}, 198 {"Mic Source", "Mic 1", "MIC1"}, 199 {"Mic Source", "Mic 2", "MIC2"}, 200 {"Mic PGA", NULL, "Mic Source"}, 201 {"PCBEEP PGA", NULL, "PCBEEP"}, 202 203 /* Left capture selector */ 204 {"Left Capture Source", "Mic", "Mic Source"}, 205 {"Left Capture Source", "CD", "CDINL"}, 206 {"Left Capture Source", "Line", "LINEINL"}, 207 {"Left Capture Source", "Stereo Mix", "HP Mixer"}, 208 {"Left Capture Source", "Mono Mix", "HP Mixer"}, 209 {"Left Capture Source", "Phone", "PHONE"}, 210 211 /* Right capture source */ 212 {"Right Capture Source", "Mic", "Mic Source"}, 213 {"Right Capture Source", "CD", "CDINR"}, 214 {"Right Capture Source", "Line", "LINEINR"}, 215 {"Right Capture Source", "Stereo Mix", "HP Mixer"}, 216 {"Right Capture Source", "Mono Mix", "HP Mixer"}, 217 {"Right Capture Source", "Phone", "PHONE"}, 218 219 {"ADC PGA", NULL, "Left Capture Source"}, 220 {"ADC PGA", NULL, "Right Capture Source"}, 221 222 /* ADC's */ 223 {"Left ADC", NULL, "ADC PGA"}, 224 {"Right ADC", NULL, "ADC PGA"}, 225 }; 226 227 static int ac97_prepare(struct snd_pcm_substream *substream, 228 struct snd_soc_dai *dai) 229 { 230 struct snd_soc_codec *codec = dai->codec; 231 int reg; 232 233 snd_soc_update_bits(codec, AC97_EXTENDED_STATUS, 0x1, 0x1); 234 235 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 236 reg = AC97_PCM_FRONT_DAC_RATE; 237 else 238 reg = AC97_PCM_LR_ADC_RATE; 239 240 return snd_soc_write(codec, reg, substream->runtime->rate); 241 } 242 243 #define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \ 244 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ 245 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ 246 SNDRV_PCM_RATE_48000) 247 248 static const struct snd_soc_dai_ops wm9705_dai_ops = { 249 .prepare = ac97_prepare, 250 }; 251 252 static struct snd_soc_dai_driver wm9705_dai[] = { 253 { 254 .name = "wm9705-hifi", 255 .playback = { 256 .stream_name = "HiFi Playback", 257 .channels_min = 1, 258 .channels_max = 2, 259 .rates = WM9705_AC97_RATES, 260 .formats = SND_SOC_STD_AC97_FMTS, 261 }, 262 .capture = { 263 .stream_name = "HiFi Capture", 264 .channels_min = 1, 265 .channels_max = 2, 266 .rates = WM9705_AC97_RATES, 267 .formats = SND_SOC_STD_AC97_FMTS, 268 }, 269 .ops = &wm9705_dai_ops, 270 }, 271 { 272 .name = "wm9705-aux", 273 .playback = { 274 .stream_name = "Aux Playback", 275 .channels_min = 1, 276 .channels_max = 1, 277 .rates = WM9705_AC97_RATES, 278 .formats = SNDRV_PCM_FMTBIT_S16_LE, 279 }, 280 } 281 }; 282 283 #ifdef CONFIG_PM 284 static int wm9705_soc_suspend(struct snd_soc_codec *codec) 285 { 286 regcache_cache_bypass(codec->component.regmap, true); 287 snd_soc_write(codec, AC97_POWERDOWN, 0xffff); 288 regcache_cache_bypass(codec->component.regmap, false); 289 290 return 0; 291 } 292 293 static int wm9705_soc_resume(struct snd_soc_codec *codec) 294 { 295 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec); 296 int ret; 297 298 ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID, 299 WM9705_VENDOR_ID_MASK); 300 if (ret < 0) 301 return ret; 302 303 regcache_sync(codec->component.regmap); 304 305 return 0; 306 } 307 #else 308 #define wm9705_soc_suspend NULL 309 #define wm9705_soc_resume NULL 310 #endif 311 312 static int wm9705_soc_probe(struct snd_soc_codec *codec) 313 { 314 struct snd_ac97 *ac97; 315 struct regmap *regmap; 316 int ret; 317 318 ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID, 319 WM9705_VENDOR_ID_MASK); 320 if (IS_ERR(ac97)) { 321 dev_err(codec->dev, "Failed to register AC97 codec\n"); 322 return PTR_ERR(ac97); 323 } 324 325 regmap = regmap_init_ac97(ac97, &wm9705_regmap_config); 326 if (IS_ERR(regmap)) { 327 ret = PTR_ERR(regmap); 328 goto err_free_ac97_codec; 329 } 330 331 snd_soc_codec_set_drvdata(codec, ac97); 332 snd_soc_codec_init_regmap(codec, regmap); 333 334 return 0; 335 err_free_ac97_codec: 336 snd_soc_free_ac97_codec(ac97); 337 return ret; 338 } 339 340 static int wm9705_soc_remove(struct snd_soc_codec *codec) 341 { 342 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec); 343 344 snd_soc_codec_exit_regmap(codec); 345 snd_soc_free_ac97_codec(ac97); 346 return 0; 347 } 348 349 static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = { 350 .probe = wm9705_soc_probe, 351 .remove = wm9705_soc_remove, 352 .suspend = wm9705_soc_suspend, 353 .resume = wm9705_soc_resume, 354 355 .component_driver = { 356 .controls = wm9705_snd_ac97_controls, 357 .num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls), 358 .dapm_widgets = wm9705_dapm_widgets, 359 .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets), 360 .dapm_routes = wm9705_audio_map, 361 .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map), 362 }, 363 }; 364 365 static int wm9705_probe(struct platform_device *pdev) 366 { 367 return snd_soc_register_codec(&pdev->dev, 368 &soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai)); 369 } 370 371 static int wm9705_remove(struct platform_device *pdev) 372 { 373 snd_soc_unregister_codec(&pdev->dev); 374 return 0; 375 } 376 377 static struct platform_driver wm9705_codec_driver = { 378 .driver = { 379 .name = "wm9705-codec", 380 }, 381 382 .probe = wm9705_probe, 383 .remove = wm9705_remove, 384 }; 385 386 module_platform_driver(wm9705_codec_driver); 387 388 MODULE_DESCRIPTION("ASoC WM9705 driver"); 389 MODULE_AUTHOR("Ian Molton"); 390 MODULE_LICENSE("GPL v2"); 391