1 /* 2 * Speyside audio support 3 * 4 * Copyright 2011 Wolfson Microelectronics 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; either version 2 of the License, or (at your 9 * option) any later version. 10 */ 11 12 #include <sound/soc.h> 13 #include <sound/soc-dapm.h> 14 #include <sound/jack.h> 15 #include <linux/gpio.h> 16 17 #include "../codecs/wm8996.h" 18 #include "../codecs/wm9081.h" 19 20 #define WM8996_HPSEL_GPIO 214 21 22 static int speyside_set_bias_level(struct snd_soc_card *card, 23 struct snd_soc_dapm_context *dapm, 24 enum snd_soc_bias_level level) 25 { 26 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; 27 int ret; 28 29 if (dapm->dev != codec_dai->dev) 30 return 0; 31 32 switch (level) { 33 case SND_SOC_BIAS_STANDBY: 34 ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2, 35 32768, SND_SOC_CLOCK_IN); 36 if (ret < 0) 37 return ret; 38 39 ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2, 40 0, 0, 0); 41 if (ret < 0) { 42 pr_err("Failed to stop FLL\n"); 43 return ret; 44 } 45 break; 46 47 default: 48 break; 49 } 50 51 return 0; 52 } 53 54 static int speyside_set_bias_level_post(struct snd_soc_card *card, 55 struct snd_soc_dapm_context *dapm, 56 enum snd_soc_bias_level level) 57 { 58 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; 59 int ret; 60 61 if (dapm->dev != codec_dai->dev) 62 return 0; 63 64 switch (level) { 65 case SND_SOC_BIAS_PREPARE: 66 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) { 67 ret = snd_soc_dai_set_pll(codec_dai, 0, 68 WM8996_FLL_MCLK2, 69 32768, 48000 * 256); 70 if (ret < 0) { 71 pr_err("Failed to start FLL\n"); 72 return ret; 73 } 74 75 ret = snd_soc_dai_set_sysclk(codec_dai, 76 WM8996_SYSCLK_FLL, 77 48000 * 256, 78 SND_SOC_CLOCK_IN); 79 if (ret < 0) 80 return ret; 81 } 82 break; 83 84 default: 85 break; 86 } 87 88 card->dapm.bias_level = level; 89 90 return 0; 91 } 92 93 static int speyside_hw_params(struct snd_pcm_substream *substream, 94 struct snd_pcm_hw_params *params) 95 { 96 struct snd_soc_pcm_runtime *rtd = substream->private_data; 97 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 98 struct snd_soc_dai *codec_dai = rtd->codec_dai; 99 int ret; 100 101 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S 102 | SND_SOC_DAIFMT_NB_NF 103 | SND_SOC_DAIFMT_CBM_CFM); 104 if (ret < 0) 105 return ret; 106 107 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S 108 | SND_SOC_DAIFMT_NB_NF 109 | SND_SOC_DAIFMT_CBM_CFM); 110 if (ret < 0) 111 return ret; 112 113 return 0; 114 } 115 116 static struct snd_soc_ops speyside_ops = { 117 .hw_params = speyside_hw_params, 118 }; 119 120 static struct snd_soc_jack speyside_headset; 121 122 /* Headset jack detection DAPM pins */ 123 static struct snd_soc_jack_pin speyside_headset_pins[] = { 124 { 125 .pin = "Headset Mic", 126 .mask = SND_JACK_MICROPHONE, 127 }, 128 { 129 .pin = "Headphone", 130 .mask = SND_JACK_HEADPHONE, 131 }, 132 }; 133 134 /* Default the headphone selection to active high */ 135 static int speyside_jack_polarity; 136 137 static int speyside_get_micbias(struct snd_soc_dapm_widget *source, 138 struct snd_soc_dapm_widget *sink) 139 { 140 if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0)) 141 return 1; 142 if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0)) 143 return 1; 144 145 return 0; 146 } 147 148 static void speyside_set_polarity(struct snd_soc_codec *codec, 149 int polarity) 150 { 151 speyside_jack_polarity = !polarity; 152 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 153 154 /* Re-run DAPM to make sure we're using the correct mic bias */ 155 snd_soc_dapm_sync(&codec->dapm); 156 } 157 158 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) 159 { 160 struct snd_soc_dai *dai = rtd->codec_dai; 161 struct snd_soc_codec *codec = rtd->codec; 162 int ret; 163 164 ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0); 165 if (ret < 0) 166 return ret; 167 168 ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL"); 169 if (ret != 0) 170 pr_err("Failed to request HP_SEL GPIO: %d\n", ret); 171 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 172 173 ret = snd_soc_jack_new(codec, "Headset", 174 SND_JACK_HEADSET | SND_JACK_BTN_0, 175 &speyside_headset); 176 if (ret) 177 return ret; 178 179 ret = snd_soc_jack_add_pins(&speyside_headset, 180 ARRAY_SIZE(speyside_headset_pins), 181 speyside_headset_pins); 182 if (ret) 183 return ret; 184 185 wm8996_detect(codec, &speyside_headset, speyside_set_polarity); 186 187 return 0; 188 } 189 190 static int speyside_late_probe(struct snd_soc_card *card) 191 { 192 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 193 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); 194 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); 195 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); 196 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); 197 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); 198 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); 199 200 return 0; 201 } 202 203 static struct snd_soc_dai_link speyside_dai[] = { 204 { 205 .name = "CPU", 206 .stream_name = "CPU", 207 .cpu_dai_name = "samsung-i2s.0", 208 .codec_dai_name = "wm8996-aif1", 209 .platform_name = "samsung-audio", 210 .codec_name = "wm8996.1-001a", 211 .init = speyside_wm8996_init, 212 .ops = &speyside_ops, 213 }, 214 { 215 .name = "Baseband", 216 .stream_name = "Baseband", 217 .cpu_dai_name = "wm8996-aif2", 218 .codec_dai_name = "wm1250-ev1", 219 .codec_name = "wm1250-ev1.1-0027", 220 .ops = &speyside_ops, 221 .ignore_suspend = 1, 222 }, 223 }; 224 225 static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm) 226 { 227 snd_soc_dapm_nc_pin(dapm, "LINEOUT"); 228 229 /* At any time the WM9081 is active it will have this clock */ 230 return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK, 231 48000 * 256, 0); 232 } 233 234 static struct snd_soc_aux_dev speyside_aux_dev[] = { 235 { 236 .name = "wm9081", 237 .codec_name = "wm9081.1-006c", 238 .init = speyside_wm9081_init, 239 }, 240 }; 241 242 static struct snd_soc_codec_conf speyside_codec_conf[] = { 243 { 244 .dev_name = "wm9081.1-006c", 245 .name_prefix = "Sub", 246 }, 247 }; 248 249 static const struct snd_kcontrol_new controls[] = { 250 SOC_DAPM_PIN_SWITCH("Main Speaker"), 251 SOC_DAPM_PIN_SWITCH("Main DMIC"), 252 SOC_DAPM_PIN_SWITCH("Main AMIC"), 253 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 254 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 255 }; 256 257 static struct snd_soc_dapm_widget widgets[] = { 258 SND_SOC_DAPM_HP("Headphone", NULL), 259 SND_SOC_DAPM_MIC("Headset Mic", NULL), 260 261 SND_SOC_DAPM_SPK("Main Speaker", NULL), 262 263 SND_SOC_DAPM_MIC("Main AMIC", NULL), 264 SND_SOC_DAPM_MIC("Main DMIC", NULL), 265 }; 266 267 static struct snd_soc_dapm_route audio_paths[] = { 268 { "IN1RN", NULL, "MICB1" }, 269 { "IN1RP", NULL, "MICB1" }, 270 { "IN1RN", NULL, "MICB2" }, 271 { "IN1RP", NULL, "MICB2" }, 272 { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, 273 { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, 274 275 { "IN1LP", NULL, "MICB2" }, 276 { "IN1RN", NULL, "MICB1" }, 277 { "MICB2", NULL, "Main AMIC" }, 278 279 { "DMIC1DAT", NULL, "MICB1" }, 280 { "DMIC2DAT", NULL, "MICB1" }, 281 { "MICB1", NULL, "Main DMIC" }, 282 283 { "Headphone", NULL, "HPOUT1L" }, 284 { "Headphone", NULL, "HPOUT1R" }, 285 286 { "Sub IN1", NULL, "HPOUT2L" }, 287 { "Sub IN2", NULL, "HPOUT2R" }, 288 289 { "Main Speaker", NULL, "Sub SPKN" }, 290 { "Main Speaker", NULL, "Sub SPKP" }, 291 { "Main Speaker", NULL, "SPKDAT" }, 292 }; 293 294 static struct snd_soc_card speyside = { 295 .name = "Speyside", 296 .dai_link = speyside_dai, 297 .num_links = ARRAY_SIZE(speyside_dai), 298 .aux_dev = speyside_aux_dev, 299 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), 300 .codec_conf = speyside_codec_conf, 301 .num_configs = ARRAY_SIZE(speyside_codec_conf), 302 303 .set_bias_level = speyside_set_bias_level, 304 .set_bias_level_post = speyside_set_bias_level_post, 305 306 .controls = controls, 307 .num_controls = ARRAY_SIZE(controls), 308 .dapm_widgets = widgets, 309 .num_dapm_widgets = ARRAY_SIZE(widgets), 310 .dapm_routes = audio_paths, 311 .num_dapm_routes = ARRAY_SIZE(audio_paths), 312 313 .late_probe = speyside_late_probe, 314 }; 315 316 static __devinit int speyside_probe(struct platform_device *pdev) 317 { 318 struct snd_soc_card *card = &speyside; 319 int ret; 320 321 card->dev = &pdev->dev; 322 323 ret = snd_soc_register_card(card); 324 if (ret) { 325 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", 326 ret); 327 return ret; 328 } 329 330 return 0; 331 } 332 333 static int __devexit speyside_remove(struct platform_device *pdev) 334 { 335 struct snd_soc_card *card = platform_get_drvdata(pdev); 336 337 snd_soc_unregister_card(card); 338 339 return 0; 340 } 341 342 static struct platform_driver speyside_driver = { 343 .driver = { 344 .name = "speyside", 345 .owner = THIS_MODULE, 346 .pm = &snd_soc_pm_ops, 347 }, 348 .probe = speyside_probe, 349 .remove = __devexit_p(speyside_remove), 350 }; 351 352 static int __init speyside_audio_init(void) 353 { 354 return platform_driver_register(&speyside_driver); 355 } 356 module_init(speyside_audio_init); 357 358 static void __exit speyside_audio_exit(void) 359 { 360 platform_driver_unregister(&speyside_driver); 361 } 362 module_exit(speyside_audio_exit); 363 364 MODULE_DESCRIPTION("Speyside audio support"); 365 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 366 MODULE_LICENSE("GPL"); 367 MODULE_ALIAS("platform:speyside"); 368