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_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT | 157 SND_JACK_HEADSET | SND_JACK_BTN_0, 158 &speyside_headset, speyside_headset_pins, 159 ARRAY_SIZE(speyside_headset_pins)); 160 if (ret) 161 return ret; 162 163 wm8996_detect(codec, &speyside_headset, speyside_set_polarity); 164 165 return 0; 166 } 167 168 static int speyside_late_probe(struct snd_soc_card *card) 169 { 170 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 171 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); 172 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); 173 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); 174 snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker"); 175 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); 176 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); 177 178 return 0; 179 } 180 181 static const struct snd_soc_pcm_stream dsp_codec_params = { 182 .formats = SNDRV_PCM_FMTBIT_S32_LE, 183 .rate_min = 48000, 184 .rate_max = 48000, 185 .channels_min = 2, 186 .channels_max = 2, 187 }; 188 189 static struct snd_soc_dai_link speyside_dai[] = { 190 { 191 .name = "CPU-DSP", 192 .stream_name = "CPU-DSP", 193 .cpu_dai_name = "samsung-i2s.0", 194 .codec_dai_name = "wm0010-sdi1", 195 .platform_name = "samsung-i2s.0", 196 .codec_name = "spi0.0", 197 .init = speyside_wm0010_init, 198 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 199 | SND_SOC_DAIFMT_CBM_CFM, 200 }, 201 { 202 .name = "DSP-CODEC", 203 .stream_name = "DSP-CODEC", 204 .cpu_dai_name = "wm0010-sdi2", 205 .codec_dai_name = "wm8996-aif1", 206 .codec_name = "wm8996.1-001a", 207 .init = speyside_wm8996_init, 208 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 209 | SND_SOC_DAIFMT_CBM_CFM, 210 .params = &dsp_codec_params, 211 .ignore_suspend = 1, 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 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 220 | SND_SOC_DAIFMT_CBM_CFM, 221 .ignore_suspend = 1, 222 }, 223 }; 224 225 static int speyside_wm9081_init(struct snd_soc_component *component) 226 { 227 struct snd_soc_codec *codec = snd_soc_component_to_codec(component); 228 229 /* At any time the WM9081 is active it will have this clock */ 230 return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0, 231 MCLK_AUDIO_RATE, 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 SOC_DAPM_PIN_SWITCH("Headphone"), 256 }; 257 258 static struct snd_soc_dapm_widget widgets[] = { 259 SND_SOC_DAPM_HP("Headphone", NULL), 260 SND_SOC_DAPM_MIC("Headset Mic", NULL), 261 262 SND_SOC_DAPM_SPK("Main Speaker", NULL), 263 264 SND_SOC_DAPM_MIC("Main AMIC", NULL), 265 SND_SOC_DAPM_MIC("Main DMIC", NULL), 266 }; 267 268 static struct snd_soc_dapm_route audio_paths[] = { 269 { "IN1RN", NULL, "MICB1" }, 270 { "IN1RP", NULL, "MICB1" }, 271 { "IN1RN", NULL, "MICB2" }, 272 { "IN1RP", NULL, "MICB2" }, 273 { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, 274 { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, 275 276 { "IN1LP", NULL, "MICB2" }, 277 { "IN1RN", NULL, "MICB1" }, 278 { "MICB2", NULL, "Main AMIC" }, 279 280 { "DMIC1DAT", NULL, "MICB1" }, 281 { "DMIC2DAT", NULL, "MICB1" }, 282 { "MICB1", NULL, "Main DMIC" }, 283 284 { "Headphone", NULL, "HPOUT1L" }, 285 { "Headphone", NULL, "HPOUT1R" }, 286 287 { "Sub IN1", NULL, "HPOUT2L" }, 288 { "Sub IN2", NULL, "HPOUT2R" }, 289 290 { "Main Speaker", NULL, "Sub SPKN" }, 291 { "Main Speaker", NULL, "Sub SPKP" }, 292 { "Main Speaker", NULL, "SPKDAT" }, 293 }; 294 295 static struct snd_soc_card speyside = { 296 .name = "Speyside", 297 .owner = THIS_MODULE, 298 .dai_link = speyside_dai, 299 .num_links = ARRAY_SIZE(speyside_dai), 300 .aux_dev = speyside_aux_dev, 301 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), 302 .codec_conf = speyside_codec_conf, 303 .num_configs = ARRAY_SIZE(speyside_codec_conf), 304 305 .set_bias_level = speyside_set_bias_level, 306 .set_bias_level_post = speyside_set_bias_level_post, 307 308 .controls = controls, 309 .num_controls = ARRAY_SIZE(controls), 310 .dapm_widgets = widgets, 311 .num_dapm_widgets = ARRAY_SIZE(widgets), 312 .dapm_routes = audio_paths, 313 .num_dapm_routes = ARRAY_SIZE(audio_paths), 314 .fully_routed = true, 315 316 .late_probe = speyside_late_probe, 317 }; 318 319 static int speyside_probe(struct platform_device *pdev) 320 { 321 struct snd_soc_card *card = &speyside; 322 int ret; 323 324 card->dev = &pdev->dev; 325 326 ret = devm_snd_soc_register_card(&pdev->dev, card); 327 if (ret) 328 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", 329 ret); 330 331 return ret; 332 } 333 334 static struct platform_driver speyside_driver = { 335 .driver = { 336 .name = "speyside", 337 .pm = &snd_soc_pm_ops, 338 }, 339 .probe = speyside_probe, 340 }; 341 342 module_platform_driver(speyside_driver); 343 344 MODULE_DESCRIPTION("Speyside audio support"); 345 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 346 MODULE_LICENSE("GPL"); 347 MODULE_ALIAS("platform:speyside"); 348