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