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/machine.h> 11 #include <linux/gpio/consumer.h> 12 #include <linux/module.h> 13 14 #include "../codecs/wm8996.h" 15 #include "../codecs/wm9081.h" 16 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 = snd_soc_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 = snd_soc_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 return 0; 94 } 95 96 static struct snd_soc_jack speyside_headset; 97 98 /* Headset jack detection DAPM pins */ 99 static struct snd_soc_jack_pin speyside_headset_pins[] = { 100 { 101 .pin = "Headset Mic", 102 .mask = SND_JACK_MICROPHONE, 103 }, 104 }; 105 106 static struct gpio_desc *speyside_hpsel_gpio; 107 /* Default the headphone selection to active high */ 108 static int speyside_jack_polarity; 109 110 static int speyside_get_micbias(struct snd_soc_dapm_widget *source, 111 struct snd_soc_dapm_widget *sink) 112 { 113 if (speyside_jack_polarity && (snd_soc_dapm_widget_name_cmp(source, "MICB1") == 0)) 114 return 1; 115 if (!speyside_jack_polarity && (snd_soc_dapm_widget_name_cmp(source, "MICB2") == 0)) 116 return 1; 117 118 return 0; 119 } 120 121 static void speyside_set_polarity(struct snd_soc_component *component, 122 int polarity) 123 { 124 speyside_jack_polarity = !polarity; 125 gpiod_direction_output(speyside_hpsel_gpio, speyside_jack_polarity); 126 127 /* Re-run DAPM to make sure we're using the correct mic bias */ 128 snd_soc_dapm_sync(snd_soc_component_get_dapm(component)); 129 } 130 131 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd) 132 { 133 struct snd_soc_dai *dai = snd_soc_rtd_to_codec(rtd, 0); 134 int ret; 135 136 ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0); 137 if (ret < 0) 138 return ret; 139 140 return 0; 141 } 142 143 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) 144 { 145 struct snd_soc_dai *dai = snd_soc_rtd_to_codec(rtd, 0); 146 struct snd_soc_component *component = dai->component; 147 enum gpiod_flags flags; 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 if (speyside_jack_polarity) 155 flags = GPIOD_OUT_HIGH; 156 else 157 flags = GPIOD_OUT_LOW; 158 speyside_hpsel_gpio = devm_gpiod_get(rtd->card->dev, 159 "hp-sel", 160 flags); 161 if (IS_ERR(speyside_hpsel_gpio)) 162 return PTR_ERR(speyside_hpsel_gpio); 163 164 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset", 165 SND_JACK_LINEOUT | SND_JACK_HEADSET | 166 SND_JACK_BTN_0, 167 &speyside_headset, 168 speyside_headset_pins, 169 ARRAY_SIZE(speyside_headset_pins)); 170 if (ret) 171 return ret; 172 173 wm8996_detect(component, &speyside_headset, speyside_set_polarity); 174 175 return 0; 176 } 177 178 static int speyside_late_probe(struct snd_soc_card *card) 179 { 180 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 181 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); 182 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); 183 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); 184 snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker"); 185 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); 186 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); 187 188 return 0; 189 } 190 191 static const struct snd_soc_pcm_stream dsp_codec_params = { 192 .formats = SNDRV_PCM_FMTBIT_S32_LE, 193 .rate_min = 48000, 194 .rate_max = 48000, 195 .channels_min = 2, 196 .channels_max = 2, 197 }; 198 199 SND_SOC_DAILINK_DEFS(cpu_dsp, 200 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")), 201 DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")), 202 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0"))); 203 204 SND_SOC_DAILINK_DEFS(dsp_codec, 205 DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")), 206 DAILINK_COMP_ARRAY(COMP_CODEC("wm8996.1-001a", "wm8996-aif1"))); 207 208 SND_SOC_DAILINK_DEFS(baseband, 209 DAILINK_COMP_ARRAY(COMP_CPU("wm8996-aif2")), 210 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1"))); 211 212 static struct snd_soc_dai_link speyside_dai[] = { 213 { 214 .name = "CPU-DSP", 215 .stream_name = "CPU-DSP", 216 .init = speyside_wm0010_init, 217 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 218 | SND_SOC_DAIFMT_CBP_CFP, 219 SND_SOC_DAILINK_REG(cpu_dsp), 220 }, 221 { 222 .name = "DSP-CODEC", 223 .stream_name = "DSP-CODEC", 224 .init = speyside_wm8996_init, 225 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 226 | SND_SOC_DAIFMT_CBP_CFP, 227 .c2c_params = &dsp_codec_params, 228 .num_c2c_params = 1, 229 .ignore_suspend = 1, 230 SND_SOC_DAILINK_REG(dsp_codec), 231 }, 232 { 233 .name = "Baseband", 234 .stream_name = "Baseband", 235 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 236 | SND_SOC_DAIFMT_CBP_CFP, 237 .ignore_suspend = 1, 238 SND_SOC_DAILINK_REG(baseband), 239 }, 240 }; 241 242 static int speyside_wm9081_init(struct snd_soc_component *component) 243 { 244 /* At any time the WM9081 is active it will have this clock */ 245 return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0, 246 MCLK_AUDIO_RATE, 0); 247 } 248 249 static struct snd_soc_aux_dev speyside_aux_dev[] = { 250 { 251 .dlc = COMP_AUX("wm9081.1-006c"), 252 .init = speyside_wm9081_init, 253 }, 254 }; 255 256 static struct snd_soc_codec_conf speyside_codec_conf[] = { 257 { 258 .dlc = COMP_CODEC_CONF("wm9081.1-006c"), 259 .name_prefix = "Sub", 260 }, 261 }; 262 263 static const struct snd_kcontrol_new controls[] = { 264 SOC_DAPM_PIN_SWITCH("Main Speaker"), 265 SOC_DAPM_PIN_SWITCH("Main DMIC"), 266 SOC_DAPM_PIN_SWITCH("Main AMIC"), 267 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 268 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 269 SOC_DAPM_PIN_SWITCH("Headphone"), 270 }; 271 272 static const struct snd_soc_dapm_widget widgets[] = { 273 SND_SOC_DAPM_HP("Headphone", NULL), 274 SND_SOC_DAPM_MIC("Headset Mic", NULL), 275 276 SND_SOC_DAPM_SPK("Main Speaker", NULL), 277 278 SND_SOC_DAPM_MIC("Main AMIC", NULL), 279 SND_SOC_DAPM_MIC("Main DMIC", NULL), 280 }; 281 282 static const struct snd_soc_dapm_route audio_paths[] = { 283 { "IN1RN", NULL, "MICB1" }, 284 { "IN1RP", NULL, "MICB1" }, 285 { "IN1RN", NULL, "MICB2" }, 286 { "IN1RP", NULL, "MICB2" }, 287 { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, 288 { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, 289 290 { "IN1LP", NULL, "MICB2" }, 291 { "IN1RN", NULL, "MICB1" }, 292 { "MICB2", NULL, "Main AMIC" }, 293 294 { "DMIC1DAT", NULL, "MICB1" }, 295 { "DMIC2DAT", NULL, "MICB1" }, 296 { "MICB1", NULL, "Main DMIC" }, 297 298 { "Headphone", NULL, "HPOUT1L" }, 299 { "Headphone", NULL, "HPOUT1R" }, 300 301 { "Sub IN1", NULL, "HPOUT2L" }, 302 { "Sub IN2", NULL, "HPOUT2R" }, 303 304 { "Main Speaker", NULL, "Sub SPKN" }, 305 { "Main Speaker", NULL, "Sub SPKP" }, 306 { "Main Speaker", NULL, "SPKDAT" }, 307 }; 308 309 static struct snd_soc_card speyside = { 310 .name = "Speyside", 311 .owner = THIS_MODULE, 312 .dai_link = speyside_dai, 313 .num_links = ARRAY_SIZE(speyside_dai), 314 .aux_dev = speyside_aux_dev, 315 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), 316 .codec_conf = speyside_codec_conf, 317 .num_configs = ARRAY_SIZE(speyside_codec_conf), 318 319 .set_bias_level = speyside_set_bias_level, 320 .set_bias_level_post = speyside_set_bias_level_post, 321 322 .controls = controls, 323 .num_controls = ARRAY_SIZE(controls), 324 .dapm_widgets = widgets, 325 .num_dapm_widgets = ARRAY_SIZE(widgets), 326 .dapm_routes = audio_paths, 327 .num_dapm_routes = ARRAY_SIZE(audio_paths), 328 .fully_routed = true, 329 330 .late_probe = speyside_late_probe, 331 }; 332 333 static struct gpiod_lookup_table wm8996_gpiod_table = { 334 /* Hardcoded device name in board file mach-crag6410.c */ 335 .dev_id = "speyside", 336 .table = { 337 /* 338 * This line was hardcoded to 214 in the global GPIO 339 * number space, S3C GPIO macros seems top set the 340 * wm8996 codec GPIO start offset to 212, so this will 341 * be GPIO 214 - 212 = 2 on the wm8996. 342 */ 343 GPIO_LOOKUP("wm8996", 2, "hp-sel", GPIO_ACTIVE_HIGH), 344 { }, 345 }, 346 }; 347 348 static void speyside_gpiod_table_action(void *data) 349 { 350 gpiod_remove_lookup_table(&wm8996_gpiod_table); 351 } 352 353 static int speyside_probe(struct platform_device *pdev) 354 { 355 struct snd_soc_card *card = &speyside; 356 int ret; 357 358 card->dev = &pdev->dev; 359 360 gpiod_add_lookup_table(&wm8996_gpiod_table); 361 ret = devm_add_action_or_reset(&pdev->dev, speyside_gpiod_table_action, 362 NULL); 363 if (ret) 364 return ret; 365 366 ret = devm_snd_soc_register_card(&pdev->dev, card); 367 if (ret) 368 dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n"); 369 370 return ret; 371 } 372 373 static struct platform_driver speyside_driver = { 374 .driver = { 375 .name = "speyside", 376 .pm = &snd_soc_pm_ops, 377 }, 378 .probe = speyside_probe, 379 }; 380 381 module_platform_driver(speyside_driver); 382 383 MODULE_DESCRIPTION("Speyside audio support"); 384 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 385 MODULE_LICENSE("GPL"); 386 MODULE_ALIAS("platform:speyside"); 387