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[0].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[0].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 int speyside_hw_params(struct snd_pcm_substream *substream, 96 struct snd_pcm_hw_params *params) 97 { 98 struct snd_soc_pcm_runtime *rtd = substream->private_data; 99 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 100 struct snd_soc_dai *codec_dai = rtd->codec_dai; 101 int ret; 102 103 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S 104 | SND_SOC_DAIFMT_NB_NF 105 | SND_SOC_DAIFMT_CBM_CFM); 106 if (ret < 0) 107 return ret; 108 109 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S 110 | SND_SOC_DAIFMT_NB_NF 111 | SND_SOC_DAIFMT_CBM_CFM); 112 if (ret < 0) 113 return ret; 114 115 return 0; 116 } 117 118 static struct snd_soc_ops speyside_ops = { 119 .hw_params = speyside_hw_params, 120 }; 121 122 static struct snd_soc_jack speyside_headset; 123 124 /* Headset jack detection DAPM pins */ 125 static struct snd_soc_jack_pin speyside_headset_pins[] = { 126 { 127 .pin = "Headset Mic", 128 .mask = SND_JACK_MICROPHONE, 129 }, 130 }; 131 132 /* Default the headphone selection to active high */ 133 static int speyside_jack_polarity; 134 135 static int speyside_get_micbias(struct snd_soc_dapm_widget *source, 136 struct snd_soc_dapm_widget *sink) 137 { 138 if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0)) 139 return 1; 140 if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0)) 141 return 1; 142 143 return 0; 144 } 145 146 static void speyside_set_polarity(struct snd_soc_codec *codec, 147 int polarity) 148 { 149 speyside_jack_polarity = !polarity; 150 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 151 152 /* Re-run DAPM to make sure we're using the correct mic bias */ 153 snd_soc_dapm_sync(&codec->dapm); 154 } 155 156 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) 157 { 158 struct snd_soc_dai *dai = rtd->codec_dai; 159 struct snd_soc_codec *codec = rtd->codec; 160 int ret; 161 162 ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0); 163 if (ret < 0) 164 return ret; 165 166 ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL"); 167 if (ret != 0) 168 pr_err("Failed to request HP_SEL GPIO: %d\n", ret); 169 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 170 171 ret = snd_soc_jack_new(codec, "Headset", 172 SND_JACK_LINEOUT | SND_JACK_HEADSET | 173 SND_JACK_BTN_0, 174 &speyside_headset); 175 if (ret) 176 return ret; 177 178 ret = snd_soc_jack_add_pins(&speyside_headset, 179 ARRAY_SIZE(speyside_headset_pins), 180 speyside_headset_pins); 181 if (ret) 182 return ret; 183 184 wm8996_detect(codec, &speyside_headset, speyside_set_polarity); 185 186 return 0; 187 } 188 189 static int speyside_late_probe(struct snd_soc_card *card) 190 { 191 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 192 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); 193 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); 194 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); 195 snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker"); 196 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); 197 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); 198 199 return 0; 200 } 201 202 static struct snd_soc_dai_link speyside_dai[] = { 203 { 204 .name = "CPU", 205 .stream_name = "CPU", 206 .cpu_dai_name = "samsung-i2s.0", 207 .codec_dai_name = "wm8996-aif1", 208 .platform_name = "samsung-audio", 209 .codec_name = "wm8996.1-001a", 210 .init = speyside_wm8996_init, 211 .ops = &speyside_ops, 212 }, 213 { 214 .name = "Baseband", 215 .stream_name = "Baseband", 216 .cpu_dai_name = "wm8996-aif2", 217 .codec_dai_name = "wm1250-ev1", 218 .codec_name = "wm1250-ev1.1-0027", 219 .ops = &speyside_ops, 220 .ignore_suspend = 1, 221 }, 222 }; 223 224 static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm) 225 { 226 /* At any time the WM9081 is active it will have this clock */ 227 return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK, 0, 228 MCLK_AUDIO_RATE, 0); 229 } 230 231 static struct snd_soc_aux_dev speyside_aux_dev[] = { 232 { 233 .name = "wm9081", 234 .codec_name = "wm9081.1-006c", 235 .init = speyside_wm9081_init, 236 }, 237 }; 238 239 static struct snd_soc_codec_conf speyside_codec_conf[] = { 240 { 241 .dev_name = "wm9081.1-006c", 242 .name_prefix = "Sub", 243 }, 244 }; 245 246 static const struct snd_kcontrol_new controls[] = { 247 SOC_DAPM_PIN_SWITCH("Main Speaker"), 248 SOC_DAPM_PIN_SWITCH("Main DMIC"), 249 SOC_DAPM_PIN_SWITCH("Main AMIC"), 250 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 251 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 252 SOC_DAPM_PIN_SWITCH("Headphone"), 253 }; 254 255 static struct snd_soc_dapm_widget widgets[] = { 256 SND_SOC_DAPM_HP("Headphone", NULL), 257 SND_SOC_DAPM_MIC("Headset Mic", NULL), 258 259 SND_SOC_DAPM_SPK("Main Speaker", NULL), 260 261 SND_SOC_DAPM_MIC("Main AMIC", NULL), 262 SND_SOC_DAPM_MIC("Main DMIC", NULL), 263 }; 264 265 static struct snd_soc_dapm_route audio_paths[] = { 266 { "IN1RN", NULL, "MICB1" }, 267 { "IN1RP", NULL, "MICB1" }, 268 { "IN1RN", NULL, "MICB2" }, 269 { "IN1RP", NULL, "MICB2" }, 270 { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, 271 { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, 272 273 { "IN1LP", NULL, "MICB2" }, 274 { "IN1RN", NULL, "MICB1" }, 275 { "MICB2", NULL, "Main AMIC" }, 276 277 { "DMIC1DAT", NULL, "MICB1" }, 278 { "DMIC2DAT", NULL, "MICB1" }, 279 { "MICB1", NULL, "Main DMIC" }, 280 281 { "Headphone", NULL, "HPOUT1L" }, 282 { "Headphone", NULL, "HPOUT1R" }, 283 284 { "Sub IN1", NULL, "HPOUT2L" }, 285 { "Sub IN2", NULL, "HPOUT2R" }, 286 287 { "Main Speaker", NULL, "Sub SPKN" }, 288 { "Main Speaker", NULL, "Sub SPKP" }, 289 { "Main Speaker", NULL, "SPKDAT" }, 290 }; 291 292 static struct snd_soc_card speyside = { 293 .name = "Speyside", 294 .owner = THIS_MODULE, 295 .dai_link = speyside_dai, 296 .num_links = ARRAY_SIZE(speyside_dai), 297 .aux_dev = speyside_aux_dev, 298 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), 299 .codec_conf = speyside_codec_conf, 300 .num_configs = ARRAY_SIZE(speyside_codec_conf), 301 302 .set_bias_level = speyside_set_bias_level, 303 .set_bias_level_post = speyside_set_bias_level_post, 304 305 .controls = controls, 306 .num_controls = ARRAY_SIZE(controls), 307 .dapm_widgets = widgets, 308 .num_dapm_widgets = ARRAY_SIZE(widgets), 309 .dapm_routes = audio_paths, 310 .num_dapm_routes = ARRAY_SIZE(audio_paths), 311 .fully_routed = true, 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 module_platform_driver(speyside_driver); 353 354 MODULE_DESCRIPTION("Speyside audio support"); 355 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 356 MODULE_LICENSE("GPL"); 357 MODULE_ALIAS("platform:speyside"); 358