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 #include <linux/module.h> 17 18 #include "../codecs/wm8996.h" 19 #include "../codecs/wm9081.h" 20 21 #define WM8996_HPSEL_GPIO 214 22 #define MCLK_AUDIO_RATE (512 * 48000) 23 24 static int speyside_set_bias_level(struct snd_soc_card *card, 25 struct snd_soc_dapm_context *dapm, 26 enum snd_soc_bias_level level) 27 { 28 struct snd_soc_dai *codec_dai = card->rtd[1].codec_dai; 29 int ret; 30 31 if (dapm->dev != codec_dai->dev) 32 return 0; 33 34 switch (level) { 35 case SND_SOC_BIAS_STANDBY: 36 ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2, 37 32768, SND_SOC_CLOCK_IN); 38 if (ret < 0) 39 return ret; 40 41 ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2, 42 0, 0, 0); 43 if (ret < 0) { 44 pr_err("Failed to stop FLL\n"); 45 return ret; 46 } 47 break; 48 49 default: 50 break; 51 } 52 53 return 0; 54 } 55 56 static int speyside_set_bias_level_post(struct snd_soc_card *card, 57 struct snd_soc_dapm_context *dapm, 58 enum snd_soc_bias_level level) 59 { 60 struct snd_soc_dai *codec_dai = card->rtd[1].codec_dai; 61 int ret; 62 63 if (dapm->dev != codec_dai->dev) 64 return 0; 65 66 switch (level) { 67 case SND_SOC_BIAS_PREPARE: 68 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) { 69 ret = snd_soc_dai_set_pll(codec_dai, 0, 70 WM8996_FLL_MCLK2, 71 32768, MCLK_AUDIO_RATE); 72 if (ret < 0) { 73 pr_err("Failed to start FLL\n"); 74 return ret; 75 } 76 77 ret = snd_soc_dai_set_sysclk(codec_dai, 78 WM8996_SYSCLK_FLL, 79 MCLK_AUDIO_RATE, 80 SND_SOC_CLOCK_IN); 81 if (ret < 0) 82 return ret; 83 } 84 break; 85 86 default: 87 break; 88 } 89 90 card->dapm.bias_level = level; 91 92 return 0; 93 } 94 95 static struct snd_soc_jack speyside_headset; 96 97 /* Headset jack detection DAPM pins */ 98 static struct snd_soc_jack_pin speyside_headset_pins[] = { 99 { 100 .pin = "Headset Mic", 101 .mask = SND_JACK_MICROPHONE, 102 }, 103 }; 104 105 /* Default the headphone selection to active high */ 106 static int speyside_jack_polarity; 107 108 static int speyside_get_micbias(struct snd_soc_dapm_widget *source, 109 struct snd_soc_dapm_widget *sink) 110 { 111 if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0)) 112 return 1; 113 if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0)) 114 return 1; 115 116 return 0; 117 } 118 119 static void speyside_set_polarity(struct snd_soc_codec *codec, 120 int polarity) 121 { 122 speyside_jack_polarity = !polarity; 123 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 124 125 /* Re-run DAPM to make sure we're using the correct mic bias */ 126 snd_soc_dapm_sync(&codec->dapm); 127 } 128 129 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd) 130 { 131 struct snd_soc_dai *dai = rtd->codec_dai; 132 int ret; 133 134 ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0); 135 if (ret < 0) 136 return ret; 137 138 return 0; 139 } 140 141 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) 142 { 143 struct snd_soc_dai *dai = rtd->codec_dai; 144 struct snd_soc_codec *codec = rtd->codec; 145 int ret; 146 147 ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0); 148 if (ret < 0) 149 return ret; 150 151 ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL"); 152 if (ret != 0) 153 pr_err("Failed to request HP_SEL GPIO: %d\n", ret); 154 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 155 156 ret = snd_soc_jack_new(codec, "Headset", 157 SND_JACK_LINEOUT | SND_JACK_HEADSET | 158 SND_JACK_BTN_0, 159 &speyside_headset); 160 if (ret) 161 return ret; 162 163 ret = snd_soc_jack_add_pins(&speyside_headset, 164 ARRAY_SIZE(speyside_headset_pins), 165 speyside_headset_pins); 166 if (ret) 167 return ret; 168 169 wm8996_detect(codec, &speyside_headset, speyside_set_polarity); 170 171 return 0; 172 } 173 174 static int speyside_late_probe(struct snd_soc_card *card) 175 { 176 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 177 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); 178 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); 179 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); 180 snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker"); 181 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); 182 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); 183 184 return 0; 185 } 186 187 static const struct snd_soc_pcm_stream dsp_codec_params = { 188 .formats = SNDRV_PCM_FMTBIT_S32_LE, 189 .rate_min = 48000, 190 .rate_max = 48000, 191 .channels_min = 2, 192 .channels_max = 2, 193 }; 194 195 static struct snd_soc_dai_link speyside_dai[] = { 196 { 197 .name = "CPU-DSP", 198 .stream_name = "CPU-DSP", 199 .cpu_dai_name = "samsung-i2s.0", 200 .codec_dai_name = "wm0010-sdi1", 201 .platform_name = "samsung-i2s.0", 202 .codec_name = "spi0.0", 203 .init = speyside_wm0010_init, 204 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 205 | SND_SOC_DAIFMT_CBM_CFM, 206 }, 207 { 208 .name = "DSP-CODEC", 209 .stream_name = "DSP-CODEC", 210 .cpu_dai_name = "wm0010-sdi2", 211 .codec_dai_name = "wm8996-aif1", 212 .codec_name = "wm8996.1-001a", 213 .init = speyside_wm8996_init, 214 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 215 | SND_SOC_DAIFMT_CBM_CFM, 216 .params = &dsp_codec_params, 217 .ignore_suspend = 1, 218 }, 219 { 220 .name = "Baseband", 221 .stream_name = "Baseband", 222 .cpu_dai_name = "wm8996-aif2", 223 .codec_dai_name = "wm1250-ev1", 224 .codec_name = "wm1250-ev1.1-0027", 225 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 226 | SND_SOC_DAIFMT_CBM_CFM, 227 .ignore_suspend = 1, 228 }, 229 }; 230 231 static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm) 232 { 233 /* At any time the WM9081 is active it will have this clock */ 234 return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK, 0, 235 MCLK_AUDIO_RATE, 0); 236 } 237 238 static struct snd_soc_aux_dev speyside_aux_dev[] = { 239 { 240 .name = "wm9081", 241 .codec_name = "wm9081.1-006c", 242 .init = speyside_wm9081_init, 243 }, 244 }; 245 246 static struct snd_soc_codec_conf speyside_codec_conf[] = { 247 { 248 .dev_name = "wm9081.1-006c", 249 .name_prefix = "Sub", 250 }, 251 }; 252 253 static const struct snd_kcontrol_new controls[] = { 254 SOC_DAPM_PIN_SWITCH("Main Speaker"), 255 SOC_DAPM_PIN_SWITCH("Main DMIC"), 256 SOC_DAPM_PIN_SWITCH("Main AMIC"), 257 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 258 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 259 SOC_DAPM_PIN_SWITCH("Headphone"), 260 }; 261 262 static struct snd_soc_dapm_widget widgets[] = { 263 SND_SOC_DAPM_HP("Headphone", NULL), 264 SND_SOC_DAPM_MIC("Headset Mic", NULL), 265 266 SND_SOC_DAPM_SPK("Main Speaker", NULL), 267 268 SND_SOC_DAPM_MIC("Main AMIC", NULL), 269 SND_SOC_DAPM_MIC("Main DMIC", NULL), 270 }; 271 272 static struct snd_soc_dapm_route audio_paths[] = { 273 { "IN1RN", NULL, "MICB1" }, 274 { "IN1RP", NULL, "MICB1" }, 275 { "IN1RN", NULL, "MICB2" }, 276 { "IN1RP", NULL, "MICB2" }, 277 { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, 278 { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, 279 280 { "IN1LP", NULL, "MICB2" }, 281 { "IN1RN", NULL, "MICB1" }, 282 { "MICB2", NULL, "Main AMIC" }, 283 284 { "DMIC1DAT", NULL, "MICB1" }, 285 { "DMIC2DAT", NULL, "MICB1" }, 286 { "MICB1", NULL, "Main DMIC" }, 287 288 { "Headphone", NULL, "HPOUT1L" }, 289 { "Headphone", NULL, "HPOUT1R" }, 290 291 { "Sub IN1", NULL, "HPOUT2L" }, 292 { "Sub IN2", NULL, "HPOUT2R" }, 293 294 { "Main Speaker", NULL, "Sub SPKN" }, 295 { "Main Speaker", NULL, "Sub SPKP" }, 296 { "Main Speaker", NULL, "SPKDAT" }, 297 }; 298 299 static struct snd_soc_card speyside = { 300 .name = "Speyside", 301 .owner = THIS_MODULE, 302 .dai_link = speyside_dai, 303 .num_links = ARRAY_SIZE(speyside_dai), 304 .aux_dev = speyside_aux_dev, 305 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), 306 .codec_conf = speyside_codec_conf, 307 .num_configs = ARRAY_SIZE(speyside_codec_conf), 308 309 .set_bias_level = speyside_set_bias_level, 310 .set_bias_level_post = speyside_set_bias_level_post, 311 312 .controls = controls, 313 .num_controls = ARRAY_SIZE(controls), 314 .dapm_widgets = widgets, 315 .num_dapm_widgets = ARRAY_SIZE(widgets), 316 .dapm_routes = audio_paths, 317 .num_dapm_routes = ARRAY_SIZE(audio_paths), 318 .fully_routed = true, 319 320 .late_probe = speyside_late_probe, 321 }; 322 323 static int speyside_probe(struct platform_device *pdev) 324 { 325 struct snd_soc_card *card = &speyside; 326 int ret; 327 328 card->dev = &pdev->dev; 329 330 ret = snd_soc_register_card(card); 331 if (ret) { 332 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", 333 ret); 334 return ret; 335 } 336 337 return 0; 338 } 339 340 static int speyside_remove(struct platform_device *pdev) 341 { 342 struct snd_soc_card *card = platform_get_drvdata(pdev); 343 344 snd_soc_unregister_card(card); 345 346 return 0; 347 } 348 349 static struct platform_driver speyside_driver = { 350 .driver = { 351 .name = "speyside", 352 .owner = THIS_MODULE, 353 .pm = &snd_soc_pm_ops, 354 }, 355 .probe = speyside_probe, 356 .remove = speyside_remove, 357 }; 358 359 module_platform_driver(speyside_driver); 360 361 MODULE_DESCRIPTION("Speyside audio support"); 362 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 363 MODULE_LICENSE("GPL"); 364 MODULE_ALIAS("platform:speyside"); 365