1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // Speyside audio support 4 // 5 // Copyright 2011 Wolfson Microelectronics 6 7 #include <sound/soc.h> 8 #include <sound/soc-dapm.h> 9 #include <sound/jack.h> 10 #include <linux/gpio.h> 11 #include <linux/module.h> 12 13 #include "../codecs/wm8996.h" 14 #include "../codecs/wm9081.h" 15 16 #define WM8996_HPSEL_GPIO 214 17 #define MCLK_AUDIO_RATE (512 * 48000) 18 19 static int speyside_set_bias_level(struct snd_soc_card *card, 20 struct snd_soc_dapm_context *dapm, 21 enum snd_soc_bias_level level) 22 { 23 struct snd_soc_pcm_runtime *rtd; 24 struct snd_soc_dai *codec_dai; 25 int ret; 26 27 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]); 28 codec_dai = asoc_rtd_to_codec(rtd, 0); 29 30 if (dapm->dev != codec_dai->dev) 31 return 0; 32 33 switch (level) { 34 case SND_SOC_BIAS_STANDBY: 35 ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2, 36 32768, SND_SOC_CLOCK_IN); 37 if (ret < 0) 38 return ret; 39 40 ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2, 41 0, 0, 0); 42 if (ret < 0) { 43 pr_err("Failed to stop FLL\n"); 44 return ret; 45 } 46 break; 47 48 default: 49 break; 50 } 51 52 return 0; 53 } 54 55 static int speyside_set_bias_level_post(struct snd_soc_card *card, 56 struct snd_soc_dapm_context *dapm, 57 enum snd_soc_bias_level level) 58 { 59 struct snd_soc_pcm_runtime *rtd; 60 struct snd_soc_dai *codec_dai; 61 int ret; 62 63 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]); 64 codec_dai = asoc_rtd_to_codec(rtd, 0); 65 66 if (dapm->dev != codec_dai->dev) 67 return 0; 68 69 switch (level) { 70 case SND_SOC_BIAS_PREPARE: 71 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) { 72 ret = snd_soc_dai_set_pll(codec_dai, 0, 73 WM8996_FLL_MCLK2, 74 32768, MCLK_AUDIO_RATE); 75 if (ret < 0) { 76 pr_err("Failed to start FLL\n"); 77 return ret; 78 } 79 80 ret = snd_soc_dai_set_sysclk(codec_dai, 81 WM8996_SYSCLK_FLL, 82 MCLK_AUDIO_RATE, 83 SND_SOC_CLOCK_IN); 84 if (ret < 0) 85 return ret; 86 } 87 break; 88 89 default: 90 break; 91 } 92 93 card->dapm.bias_level = level; 94 95 return 0; 96 } 97 98 static struct snd_soc_jack speyside_headset; 99 100 /* Headset jack detection DAPM pins */ 101 static struct snd_soc_jack_pin speyside_headset_pins[] = { 102 { 103 .pin = "Headset Mic", 104 .mask = SND_JACK_MICROPHONE, 105 }, 106 }; 107 108 /* Default the headphone selection to active high */ 109 static int speyside_jack_polarity; 110 111 static int speyside_get_micbias(struct snd_soc_dapm_widget *source, 112 struct snd_soc_dapm_widget *sink) 113 { 114 if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0)) 115 return 1; 116 if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0)) 117 return 1; 118 119 return 0; 120 } 121 122 static void speyside_set_polarity(struct snd_soc_component *component, 123 int polarity) 124 { 125 speyside_jack_polarity = !polarity; 126 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 127 128 /* Re-run DAPM to make sure we're using the correct mic bias */ 129 snd_soc_dapm_sync(snd_soc_component_get_dapm(component)); 130 } 131 132 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd) 133 { 134 struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0); 135 int ret; 136 137 ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0); 138 if (ret < 0) 139 return ret; 140 141 return 0; 142 } 143 144 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) 145 { 146 struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0); 147 struct snd_soc_component *component = dai->component; 148 int ret; 149 150 ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0); 151 if (ret < 0) 152 return ret; 153 154 ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL"); 155 if (ret != 0) 156 pr_err("Failed to request HP_SEL GPIO: %d\n", ret); 157 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 158 159 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset", 160 SND_JACK_LINEOUT | SND_JACK_HEADSET | 161 SND_JACK_BTN_0, 162 &speyside_headset, 163 speyside_headset_pins, 164 ARRAY_SIZE(speyside_headset_pins)); 165 if (ret) 166 return ret; 167 168 wm8996_detect(component, &speyside_headset, speyside_set_polarity); 169 170 return 0; 171 } 172 173 static int speyside_late_probe(struct snd_soc_card *card) 174 { 175 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 176 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); 177 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); 178 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); 179 snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker"); 180 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); 181 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); 182 183 return 0; 184 } 185 186 static const struct snd_soc_pcm_stream dsp_codec_params = { 187 .formats = SNDRV_PCM_FMTBIT_S32_LE, 188 .rate_min = 48000, 189 .rate_max = 48000, 190 .channels_min = 2, 191 .channels_max = 2, 192 }; 193 194 SND_SOC_DAILINK_DEFS(cpu_dsp, 195 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")), 196 DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")), 197 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0"))); 198 199 SND_SOC_DAILINK_DEFS(dsp_codec, 200 DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")), 201 DAILINK_COMP_ARRAY(COMP_CODEC("wm8996.1-001a", "wm8996-aif1"))); 202 203 SND_SOC_DAILINK_DEFS(baseband, 204 DAILINK_COMP_ARRAY(COMP_CPU("wm8996-aif2")), 205 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1"))); 206 207 static struct snd_soc_dai_link speyside_dai[] = { 208 { 209 .name = "CPU-DSP", 210 .stream_name = "CPU-DSP", 211 .init = speyside_wm0010_init, 212 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 213 | SND_SOC_DAIFMT_CBM_CFM, 214 SND_SOC_DAILINK_REG(cpu_dsp), 215 }, 216 { 217 .name = "DSP-CODEC", 218 .stream_name = "DSP-CODEC", 219 .init = speyside_wm8996_init, 220 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 221 | SND_SOC_DAIFMT_CBM_CFM, 222 .params = &dsp_codec_params, 223 .ignore_suspend = 1, 224 SND_SOC_DAILINK_REG(dsp_codec), 225 }, 226 { 227 .name = "Baseband", 228 .stream_name = "Baseband", 229 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 230 | SND_SOC_DAIFMT_CBM_CFM, 231 .ignore_suspend = 1, 232 SND_SOC_DAILINK_REG(baseband), 233 }, 234 }; 235 236 static int speyside_wm9081_init(struct snd_soc_component *component) 237 { 238 /* At any time the WM9081 is active it will have this clock */ 239 return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0, 240 MCLK_AUDIO_RATE, 0); 241 } 242 243 static struct snd_soc_aux_dev speyside_aux_dev[] = { 244 { 245 .dlc = COMP_AUX("wm9081.1-006c"), 246 .init = speyside_wm9081_init, 247 }, 248 }; 249 250 static struct snd_soc_codec_conf speyside_codec_conf[] = { 251 { 252 .dlc = COMP_CODEC_CONF("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 const 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 const 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_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n"); 337 338 return ret; 339 } 340 341 static struct platform_driver speyside_driver = { 342 .driver = { 343 .name = "speyside", 344 .pm = &snd_soc_pm_ops, 345 }, 346 .probe = speyside_probe, 347 }; 348 349 module_platform_driver(speyside_driver); 350 351 MODULE_DESCRIPTION("Speyside audio support"); 352 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 353 MODULE_LICENSE("GPL"); 354 MODULE_ALIAS("platform:speyside"); 355