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