1 // SPDX-License-Identifier: GPL-2.0-only 2 // Copyright(c) 2018-2020 Intel Corporation. 3 4 /* 5 * Intel SOF Machine Driver for Intel platforms with TI PCM512x codec, 6 * e.g. Up or Up2 with Hifiberry DAC+ HAT 7 */ 8 #include <linux/clk.h> 9 #include <linux/dmi.h> 10 #include <linux/i2c.h> 11 #include <linux/input.h> 12 #include <linux/module.h> 13 #include <linux/platform_device.h> 14 #include <linux/types.h> 15 #include <sound/core.h> 16 #include <sound/jack.h> 17 #include <sound/pcm.h> 18 #include <sound/pcm_params.h> 19 #include <sound/soc.h> 20 #include <sound/soc-acpi.h> 21 #include "../../codecs/pcm512x.h" 22 #include "../common/soc-intel-quirks.h" 23 #include "hda_dsp_common.h" 24 25 #define NAME_SIZE 32 26 27 #define SOF_PCM512X_SSP_CODEC(quirk) ((quirk) & GENMASK(3, 0)) 28 #define SOF_PCM512X_SSP_CODEC_MASK (GENMASK(3, 0)) 29 #define SOF_PCM512X_ENABLE_SSP_CAPTURE BIT(4) 30 #define SOF_PCM512X_ENABLE_DMIC BIT(5) 31 32 #define IDISP_CODEC_MASK 0x4 33 34 /* Default: SSP5 */ 35 static unsigned long sof_pcm512x_quirk = 36 SOF_PCM512X_SSP_CODEC(5) | 37 SOF_PCM512X_ENABLE_SSP_CAPTURE | 38 SOF_PCM512X_ENABLE_DMIC; 39 40 static bool is_legacy_cpu; 41 42 struct sof_hdmi_pcm { 43 struct list_head head; 44 struct snd_soc_dai *codec_dai; 45 int device; 46 }; 47 48 struct sof_card_private { 49 struct list_head hdmi_pcm_list; 50 bool idisp_codec; 51 }; 52 53 static int sof_pcm512x_quirk_cb(const struct dmi_system_id *id) 54 { 55 sof_pcm512x_quirk = (unsigned long)id->driver_data; 56 return 1; 57 } 58 59 static const struct dmi_system_id sof_pcm512x_quirk_table[] = { 60 { 61 .callback = sof_pcm512x_quirk_cb, 62 .matches = { 63 DMI_MATCH(DMI_SYS_VENDOR, "AAEON"), 64 DMI_MATCH(DMI_PRODUCT_NAME, "UP-CHT01"), 65 }, 66 .driver_data = (void *)(SOF_PCM512X_SSP_CODEC(2)), 67 }, 68 {} 69 }; 70 71 static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd) 72 { 73 struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); 74 struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0); 75 struct sof_hdmi_pcm *pcm; 76 77 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 78 if (!pcm) 79 return -ENOMEM; 80 81 /* dai_link id is 1:1 mapped to the PCM device */ 82 pcm->device = rtd->dai_link->id; 83 pcm->codec_dai = dai; 84 85 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 86 87 return 0; 88 } 89 90 static int sof_pcm512x_codec_init(struct snd_soc_pcm_runtime *rtd) 91 { 92 struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component; 93 94 snd_soc_component_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08); 95 snd_soc_component_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02); 96 snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1, 97 0x08, 0x08); 98 99 return 0; 100 } 101 102 static int aif1_startup(struct snd_pcm_substream *substream) 103 { 104 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 105 struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component; 106 107 snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1, 108 0x08, 0x08); 109 110 return 0; 111 } 112 113 static void aif1_shutdown(struct snd_pcm_substream *substream) 114 { 115 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 116 struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component; 117 118 snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1, 119 0x08, 0x00); 120 } 121 122 static const struct snd_soc_ops sof_pcm512x_ops = { 123 .startup = aif1_startup, 124 .shutdown = aif1_shutdown, 125 }; 126 127 static struct snd_soc_dai_link_component platform_component[] = { 128 { 129 /* name might be overridden during probe */ 130 .name = "0000:00:1f.3" 131 } 132 }; 133 134 static int sof_card_late_probe(struct snd_soc_card *card) 135 { 136 struct sof_card_private *ctx = snd_soc_card_get_drvdata(card); 137 struct sof_hdmi_pcm *pcm; 138 139 /* HDMI is not supported by SOF on Baytrail/CherryTrail */ 140 if (is_legacy_cpu) 141 return 0; 142 143 if (list_empty(&ctx->hdmi_pcm_list)) 144 return -EINVAL; 145 146 if (!ctx->idisp_codec) 147 return 0; 148 149 pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, head); 150 151 return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component); 152 } 153 154 static const struct snd_kcontrol_new sof_controls[] = { 155 SOC_DAPM_PIN_SWITCH("Ext Spk"), 156 }; 157 158 static const struct snd_soc_dapm_widget sof_widgets[] = { 159 SND_SOC_DAPM_SPK("Ext Spk", NULL), 160 }; 161 162 static const struct snd_soc_dapm_widget dmic_widgets[] = { 163 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 164 }; 165 166 static const struct snd_soc_dapm_route sof_map[] = { 167 /* Speaker */ 168 {"Ext Spk", NULL, "OUTR"}, 169 {"Ext Spk", NULL, "OUTL"}, 170 }; 171 172 static const struct snd_soc_dapm_route dmic_map[] = { 173 /* digital mics */ 174 {"DMic", NULL, "SoC DMIC"}, 175 }; 176 177 static int dmic_init(struct snd_soc_pcm_runtime *rtd) 178 { 179 struct snd_soc_card *card = rtd->card; 180 int ret; 181 182 ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets, 183 ARRAY_SIZE(dmic_widgets)); 184 if (ret) { 185 dev_err(card->dev, "DMic widget addition failed: %d\n", ret); 186 /* Don't need to add routes if widget addition failed */ 187 return ret; 188 } 189 190 ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map, 191 ARRAY_SIZE(dmic_map)); 192 193 if (ret) 194 dev_err(card->dev, "DMic map addition failed: %d\n", ret); 195 196 return ret; 197 } 198 199 /* sof audio machine driver for pcm512x codec */ 200 static struct snd_soc_card sof_audio_card_pcm512x = { 201 .name = "pcm512x", 202 .owner = THIS_MODULE, 203 .controls = sof_controls, 204 .num_controls = ARRAY_SIZE(sof_controls), 205 .dapm_widgets = sof_widgets, 206 .num_dapm_widgets = ARRAY_SIZE(sof_widgets), 207 .dapm_routes = sof_map, 208 .num_dapm_routes = ARRAY_SIZE(sof_map), 209 .fully_routed = true, 210 .late_probe = sof_card_late_probe, 211 }; 212 213 SND_SOC_DAILINK_DEF(pcm512x_component, 214 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-104C5122:00", "pcm512x-hifi"))); 215 SND_SOC_DAILINK_DEF(dmic_component, 216 DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi"))); 217 218 static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev, 219 int ssp_codec, 220 int dmic_be_num, 221 int hdmi_num, 222 bool idisp_codec) 223 { 224 struct snd_soc_dai_link_component *idisp_components; 225 struct snd_soc_dai_link_component *cpus; 226 struct snd_soc_dai_link *links; 227 int i, id = 0; 228 229 links = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links, 230 sizeof(struct snd_soc_dai_link), GFP_KERNEL); 231 cpus = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links, 232 sizeof(struct snd_soc_dai_link_component), GFP_KERNEL); 233 if (!links || !cpus) 234 goto devm_err; 235 236 /* codec SSP */ 237 links[id].name = devm_kasprintf(dev, GFP_KERNEL, 238 "SSP%d-Codec", ssp_codec); 239 if (!links[id].name) 240 goto devm_err; 241 242 links[id].id = id; 243 links[id].codecs = pcm512x_component; 244 links[id].num_codecs = ARRAY_SIZE(pcm512x_component); 245 links[id].platforms = platform_component; 246 links[id].num_platforms = ARRAY_SIZE(platform_component); 247 links[id].init = sof_pcm512x_codec_init; 248 links[id].ops = &sof_pcm512x_ops; 249 links[id].dpcm_playback = 1; 250 /* 251 * capture only supported with specific versions of the Hifiberry DAC+ 252 */ 253 if (sof_pcm512x_quirk & SOF_PCM512X_ENABLE_SSP_CAPTURE) 254 links[id].dpcm_capture = 1; 255 links[id].no_pcm = 1; 256 links[id].cpus = &cpus[id]; 257 links[id].num_cpus = 1; 258 if (is_legacy_cpu) { 259 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 260 "ssp%d-port", 261 ssp_codec); 262 if (!links[id].cpus->dai_name) 263 goto devm_err; 264 } else { 265 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 266 "SSP%d Pin", 267 ssp_codec); 268 if (!links[id].cpus->dai_name) 269 goto devm_err; 270 } 271 id++; 272 273 /* dmic */ 274 if (dmic_be_num > 0) { 275 /* at least we have dmic01 */ 276 links[id].name = "dmic01"; 277 links[id].cpus = &cpus[id]; 278 links[id].cpus->dai_name = "DMIC01 Pin"; 279 links[id].init = dmic_init; 280 if (dmic_be_num > 1) { 281 /* set up 2 BE links at most */ 282 links[id + 1].name = "dmic16k"; 283 links[id + 1].cpus = &cpus[id + 1]; 284 links[id + 1].cpus->dai_name = "DMIC16k Pin"; 285 dmic_be_num = 2; 286 } 287 } 288 289 for (i = 0; i < dmic_be_num; i++) { 290 links[id].id = id; 291 links[id].num_cpus = 1; 292 links[id].codecs = dmic_component; 293 links[id].num_codecs = ARRAY_SIZE(dmic_component); 294 links[id].platforms = platform_component; 295 links[id].num_platforms = ARRAY_SIZE(platform_component); 296 links[id].ignore_suspend = 1; 297 links[id].dpcm_capture = 1; 298 links[id].no_pcm = 1; 299 id++; 300 } 301 302 /* HDMI */ 303 if (hdmi_num > 0) { 304 idisp_components = devm_kcalloc(dev, hdmi_num, 305 sizeof(struct snd_soc_dai_link_component), 306 GFP_KERNEL); 307 if (!idisp_components) 308 goto devm_err; 309 } 310 for (i = 1; i <= hdmi_num; i++) { 311 links[id].name = devm_kasprintf(dev, GFP_KERNEL, 312 "iDisp%d", i); 313 if (!links[id].name) 314 goto devm_err; 315 316 links[id].id = id; 317 links[id].cpus = &cpus[id]; 318 links[id].num_cpus = 1; 319 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 320 "iDisp%d Pin", i); 321 if (!links[id].cpus->dai_name) 322 goto devm_err; 323 324 /* 325 * topology cannot be loaded if codec is missing, so 326 * use the dummy codec if needed 327 */ 328 if (idisp_codec) { 329 idisp_components[i - 1].name = "ehdaudio0D2"; 330 idisp_components[i - 1].dai_name = 331 devm_kasprintf(dev, GFP_KERNEL, 332 "intel-hdmi-hifi%d", i); 333 } else { 334 idisp_components[i - 1].name = "snd-soc-dummy"; 335 idisp_components[i - 1].dai_name = "snd-soc-dummy-dai"; 336 } 337 if (!idisp_components[i - 1].dai_name) 338 goto devm_err; 339 340 links[id].codecs = &idisp_components[i - 1]; 341 links[id].num_codecs = 1; 342 links[id].platforms = platform_component; 343 links[id].num_platforms = ARRAY_SIZE(platform_component); 344 links[id].init = sof_hdmi_init; 345 links[id].dpcm_playback = 1; 346 links[id].no_pcm = 1; 347 id++; 348 } 349 350 return links; 351 devm_err: 352 return NULL; 353 } 354 355 static int sof_audio_probe(struct platform_device *pdev) 356 { 357 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data; 358 struct snd_soc_dai_link *dai_links; 359 struct sof_card_private *ctx; 360 int dmic_be_num, hdmi_num; 361 int ret, ssp_codec; 362 363 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 364 if (!ctx) 365 return -ENOMEM; 366 367 hdmi_num = 0; 368 if (soc_intel_is_byt() || soc_intel_is_cht()) { 369 is_legacy_cpu = true; 370 dmic_be_num = 0; 371 /* default quirk for legacy cpu */ 372 sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(2); 373 } else { 374 dmic_be_num = 2; 375 if (mach->mach_params.common_hdmi_codec_drv && 376 (mach->mach_params.codec_mask & IDISP_CODEC_MASK)) 377 ctx->idisp_codec = true; 378 379 /* links are always present in topology */ 380 hdmi_num = 3; 381 } 382 383 dmi_check_system(sof_pcm512x_quirk_table); 384 385 dev_dbg(&pdev->dev, "sof_pcm512x_quirk = %lx\n", sof_pcm512x_quirk); 386 387 ssp_codec = sof_pcm512x_quirk & SOF_PCM512X_SSP_CODEC_MASK; 388 389 if (!(sof_pcm512x_quirk & SOF_PCM512X_ENABLE_DMIC)) 390 dmic_be_num = 0; 391 392 /* compute number of dai links */ 393 sof_audio_card_pcm512x.num_links = 1 + dmic_be_num + hdmi_num; 394 395 dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, 396 dmic_be_num, hdmi_num, 397 ctx->idisp_codec); 398 if (!dai_links) 399 return -ENOMEM; 400 401 sof_audio_card_pcm512x.dai_link = dai_links; 402 403 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 404 405 sof_audio_card_pcm512x.dev = &pdev->dev; 406 407 /* set platform name for each dailink */ 408 ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_pcm512x, 409 mach->mach_params.platform); 410 if (ret) 411 return ret; 412 413 snd_soc_card_set_drvdata(&sof_audio_card_pcm512x, ctx); 414 415 return devm_snd_soc_register_card(&pdev->dev, 416 &sof_audio_card_pcm512x); 417 } 418 419 static void sof_pcm512x_remove(struct platform_device *pdev) 420 { 421 struct snd_soc_card *card = platform_get_drvdata(pdev); 422 struct snd_soc_component *component; 423 424 for_each_card_components(card, component) { 425 if (!strcmp(component->name, pcm512x_component[0].name)) { 426 snd_soc_component_set_jack(component, NULL, NULL); 427 break; 428 } 429 } 430 } 431 432 static struct platform_driver sof_audio = { 433 .probe = sof_audio_probe, 434 .remove_new = sof_pcm512x_remove, 435 .driver = { 436 .name = "sof_pcm512x", 437 .pm = &snd_soc_pm_ops, 438 }, 439 }; 440 module_platform_driver(sof_audio) 441 442 MODULE_DESCRIPTION("ASoC Intel(R) SOF + PCM512x Machine driver"); 443 MODULE_AUTHOR("Pierre-Louis Bossart"); 444 MODULE_LICENSE("GPL v2"); 445 MODULE_ALIAS("platform:sof_pcm512x"); 446 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON); 447