1 // SPDX-License-Identifier: GPL-2.0-only 2 // Copyright(c) 2024 Advanced Micro Devices, Inc. 3 4 /* 5 * acp-sdw-sof-mach - ASoC Machine driver for AMD SoundWire platforms 6 */ 7 8 #include <linux/bitmap.h> 9 #include <linux/device.h> 10 #include <linux/dmi.h> 11 #include <linux/module.h> 12 #include <linux/soundwire/sdw.h> 13 #include <linux/soundwire/sdw_type.h> 14 #include <sound/soc.h> 15 #include <sound/soc-acpi.h> 16 #include "soc_amd_sdw_common.h" 17 #include "../../codecs/rt711.h" 18 19 static unsigned long sof_sdw_quirk = RT711_JD1; 20 static int quirk_override = -1; 21 module_param_named(quirk, quirk_override, int, 0444); 22 MODULE_PARM_DESC(quirk, "Board-specific quirk override"); 23 24 static void log_quirks(struct device *dev) 25 { 26 if (SOC_JACK_JDSRC(sof_sdw_quirk)) 27 dev_dbg(dev, "quirk realtek,jack-detect-source %ld\n", 28 SOC_JACK_JDSRC(sof_sdw_quirk)); 29 if (sof_sdw_quirk & ASOC_SDW_ACP_DMIC) 30 dev_dbg(dev, "quirk SOC_SDW_ACP_DMIC enabled\n"); 31 } 32 33 static int sof_sdw_quirk_cb(const struct dmi_system_id *id) 34 { 35 sof_sdw_quirk = (unsigned long)id->driver_data; 36 return 1; 37 } 38 39 static const struct dmi_system_id sof_sdw_quirk_table[] = { 40 { 41 .callback = sof_sdw_quirk_cb, 42 .matches = { 43 DMI_MATCH(DMI_SYS_VENDOR, "AMD"), 44 DMI_MATCH(DMI_PRODUCT_NAME, "Birman-PHX"), 45 }, 46 .driver_data = (void *)RT711_JD2, 47 }, 48 {} 49 }; 50 51 static struct snd_soc_dai_link_component platform_component[] = { 52 { 53 /* name might be overridden during probe */ 54 .name = "0000:04:00.5", 55 } 56 }; 57 58 static const struct snd_soc_ops sdw_ops = { 59 .startup = asoc_sdw_startup, 60 .prepare = asoc_sdw_prepare, 61 .trigger = asoc_sdw_trigger, 62 .hw_params = asoc_sdw_hw_params, 63 .hw_free = asoc_sdw_hw_free, 64 .shutdown = asoc_sdw_shutdown, 65 }; 66 67 static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"}; 68 69 static int create_sdw_dailink(struct snd_soc_card *card, 70 struct asoc_sdw_dailink *sof_dai, 71 struct snd_soc_dai_link **dai_links, 72 int *be_id, struct snd_soc_codec_conf **codec_conf) 73 { 74 struct device *dev = card->dev; 75 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 76 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private; 77 struct asoc_sdw_endpoint *sof_end; 78 int cpu_pin_id; 79 int stream; 80 int ret; 81 82 list_for_each_entry(sof_end, &sof_dai->endpoints, list) { 83 if (sof_end->name_prefix) { 84 (*codec_conf)->dlc.name = sof_end->codec_name; 85 (*codec_conf)->name_prefix = sof_end->name_prefix; 86 (*codec_conf)++; 87 } 88 89 if (sof_end->include_sidecar) { 90 ret = sof_end->codec_info->add_sidecar(card, dai_links, codec_conf); 91 if (ret) 92 return ret; 93 } 94 } 95 96 for_each_pcm_streams(stream) { 97 static const char * const sdw_stream_name[] = { 98 "SDW%d-PIN%d-PLAYBACK", 99 "SDW%d-PIN%d-CAPTURE", 100 "SDW%d-PIN%d-PLAYBACK-%s", 101 "SDW%d-PIN%d-CAPTURE-%s", 102 }; 103 struct snd_soc_dai_link_ch_map *codec_maps; 104 struct snd_soc_dai_link_component *codecs; 105 struct snd_soc_dai_link_component *cpus; 106 int num_cpus = hweight32(sof_dai->link_mask[stream]); 107 int num_codecs = sof_dai->num_devs[stream]; 108 int playback, capture; 109 int j = 0; 110 char *name; 111 112 if (!sof_dai->num_devs[stream]) 113 continue; 114 115 sof_end = list_first_entry(&sof_dai->endpoints, 116 struct asoc_sdw_endpoint, list); 117 118 *be_id = sof_end->dai_info->dailink[stream]; 119 if (*be_id < 0) { 120 dev_err(dev, "Invalid dailink id %d\n", *be_id); 121 return -EINVAL; 122 } 123 124 switch (amd_ctx->acp_rev) { 125 case ACP63_PCI_REV: 126 ret = get_acp63_cpu_pin_id(ffs(sof_end->link_mask - 1), 127 *be_id, &cpu_pin_id, dev); 128 if (ret) 129 return ret; 130 break; 131 default: 132 return -EINVAL; 133 } 134 /* create stream name according to first link id */ 135 if (ctx->append_dai_type) { 136 name = devm_kasprintf(dev, GFP_KERNEL, 137 sdw_stream_name[stream + 2], 138 ffs(sof_end->link_mask) - 1, 139 cpu_pin_id, 140 type_strings[sof_end->dai_info->dai_type]); 141 } else { 142 name = devm_kasprintf(dev, GFP_KERNEL, 143 sdw_stream_name[stream], 144 ffs(sof_end->link_mask) - 1, 145 cpu_pin_id); 146 } 147 if (!name) 148 return -ENOMEM; 149 150 cpus = devm_kcalloc(dev, num_cpus, sizeof(*cpus), GFP_KERNEL); 151 if (!cpus) 152 return -ENOMEM; 153 154 codecs = devm_kcalloc(dev, num_codecs, sizeof(*codecs), GFP_KERNEL); 155 if (!codecs) 156 return -ENOMEM; 157 158 codec_maps = devm_kcalloc(dev, num_codecs, sizeof(*codec_maps), GFP_KERNEL); 159 if (!codec_maps) 160 return -ENOMEM; 161 162 list_for_each_entry(sof_end, &sof_dai->endpoints, list) { 163 if (!sof_end->dai_info->direction[stream]) 164 continue; 165 166 int link_num = ffs(sof_end->link_mask) - 1; 167 168 cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 169 "SDW%d Pin%d", 170 link_num, cpu_pin_id); 171 dev_dbg(dev, "cpu->dai_name:%s\n", cpus->dai_name); 172 if (!cpus->dai_name) 173 return -ENOMEM; 174 175 codec_maps[j].cpu = 0; 176 codec_maps[j].codec = j; 177 178 codecs[j].name = sof_end->codec_name; 179 codecs[j].dai_name = sof_end->dai_info->dai_name; 180 j++; 181 } 182 183 WARN_ON(j != num_codecs); 184 185 playback = (stream == SNDRV_PCM_STREAM_PLAYBACK); 186 capture = (stream == SNDRV_PCM_STREAM_CAPTURE); 187 188 asoc_sdw_init_dai_link(dev, *dai_links, be_id, name, playback, capture, 189 cpus, num_cpus, platform_component, 190 ARRAY_SIZE(platform_component), codecs, num_codecs, 191 1, asoc_sdw_rtd_init, &sdw_ops); 192 193 /* 194 * SoundWire DAILINKs use 'stream' functions and Bank Switch operations 195 * based on wait_for_completion(), tag them as 'nonatomic'. 196 */ 197 (*dai_links)->nonatomic = true; 198 (*dai_links)->ch_maps = codec_maps; 199 200 list_for_each_entry(sof_end, &sof_dai->endpoints, list) { 201 if (sof_end->dai_info->init) 202 sof_end->dai_info->init(card, *dai_links, 203 sof_end->codec_info, 204 playback); 205 } 206 207 (*dai_links)++; 208 } 209 210 return 0; 211 } 212 213 static int create_sdw_dailinks(struct snd_soc_card *card, 214 struct snd_soc_dai_link **dai_links, int *be_id, 215 struct asoc_sdw_dailink *sof_dais, 216 struct snd_soc_codec_conf **codec_conf) 217 { 218 int ret; 219 220 /* generate DAI links by each sdw link */ 221 while (sof_dais->initialised) { 222 int current_be_id; 223 224 ret = create_sdw_dailink(card, sof_dais, dai_links, 225 ¤t_be_id, codec_conf); 226 if (ret) 227 return ret; 228 229 /* Update the be_id to match the highest ID used for SDW link */ 230 if (*be_id < current_be_id) 231 *be_id = current_be_id; 232 233 sof_dais++; 234 } 235 236 return 0; 237 } 238 239 static int create_dmic_dailinks(struct snd_soc_card *card, 240 struct snd_soc_dai_link **dai_links, int *be_id, int no_pcm) 241 { 242 struct device *dev = card->dev; 243 int ret; 244 245 ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, "acp-dmic-codec", 246 0, 1, // DMIC only supports capture 247 "acp-sof-dmic", platform_component->name, 248 ARRAY_SIZE(platform_component), 249 "dmic-codec", "dmic-hifi", no_pcm, 250 asoc_sdw_dmic_init, NULL); 251 if (ret) 252 return ret; 253 254 (*dai_links)++; 255 256 return 0; 257 } 258 259 static int sof_card_dai_links_create(struct snd_soc_card *card) 260 { 261 struct device *dev = card->dev; 262 struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev); 263 int sdw_be_num = 0, dmic_num = 0; 264 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 265 struct snd_soc_acpi_mach_params *mach_params = &mach->mach_params; 266 struct asoc_sdw_endpoint *sof_ends __free(kfree) = NULL; 267 struct asoc_sdw_dailink *sof_dais __free(kfree) = NULL; 268 struct snd_soc_codec_conf *codec_conf; 269 struct snd_soc_dai_link *dai_links; 270 int num_devs = 0; 271 int num_ends = 0; 272 int num_links; 273 int be_id = 0; 274 int ret; 275 276 ret = asoc_sdw_count_sdw_endpoints(card, &num_devs, &num_ends); 277 if (ret < 0) { 278 dev_err(dev, "failed to count devices/endpoints: %d\n", ret); 279 return ret; 280 } 281 282 /* One per DAI link, worst case is a DAI link for every endpoint */ 283 sof_dais = kcalloc(num_ends, sizeof(*sof_dais), GFP_KERNEL); 284 if (!sof_dais) 285 return -ENOMEM; 286 287 /* One per endpoint, ie. each DAI on each codec/amp */ 288 sof_ends = kcalloc(num_ends, sizeof(*sof_ends), GFP_KERNEL); 289 if (!sof_ends) 290 return -ENOMEM; 291 292 ret = asoc_sdw_parse_sdw_endpoints(card, sof_dais, sof_ends, &num_devs); 293 if (ret < 0) 294 return ret; 295 296 sdw_be_num = ret; 297 298 /* enable dmic */ 299 if (sof_sdw_quirk & ASOC_SDW_ACP_DMIC || mach_params->dmic_num) 300 dmic_num = 1; 301 302 dev_dbg(dev, "sdw %d, dmic %d", sdw_be_num, dmic_num); 303 304 codec_conf = devm_kcalloc(dev, num_devs, sizeof(*codec_conf), GFP_KERNEL); 305 if (!codec_conf) 306 return -ENOMEM; 307 308 /* allocate BE dailinks */ 309 num_links = sdw_be_num + dmic_num; 310 dai_links = devm_kcalloc(dev, num_links, sizeof(*dai_links), GFP_KERNEL); 311 if (!dai_links) 312 return -ENOMEM; 313 314 card->codec_conf = codec_conf; 315 card->num_configs = num_devs; 316 card->dai_link = dai_links; 317 card->num_links = num_links; 318 319 /* SDW */ 320 if (sdw_be_num) { 321 ret = create_sdw_dailinks(card, &dai_links, &be_id, 322 sof_dais, &codec_conf); 323 if (ret) 324 return ret; 325 } 326 327 /* dmic */ 328 if (dmic_num > 0) { 329 if (ctx->ignore_internal_dmic) { 330 dev_warn(dev, "Ignoring ACP DMIC\n"); 331 } else { 332 ret = create_dmic_dailinks(card, &dai_links, &be_id, 1); 333 if (ret) 334 return ret; 335 } 336 } 337 338 WARN_ON(codec_conf != card->codec_conf + card->num_configs); 339 WARN_ON(dai_links != card->dai_link + card->num_links); 340 341 return ret; 342 } 343 344 static int mc_probe(struct platform_device *pdev) 345 { 346 struct snd_soc_acpi_mach *mach = dev_get_platdata(&pdev->dev); 347 struct snd_soc_card *card; 348 struct amd_mc_ctx *amd_ctx; 349 struct asoc_sdw_mc_private *ctx; 350 int amp_num = 0, i; 351 int ret; 352 353 amd_ctx = devm_kzalloc(&pdev->dev, sizeof(*amd_ctx), GFP_KERNEL); 354 if (!amd_ctx) 355 return -ENOMEM; 356 357 amd_ctx->acp_rev = mach->mach_params.subsystem_rev; 358 amd_ctx->max_sdw_links = ACP63_SDW_MAX_LINKS; 359 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 360 if (!ctx) 361 return -ENOMEM; 362 ctx->codec_info_list_count = asoc_sdw_get_codec_info_list_count(); 363 ctx->private = amd_ctx; 364 card = &ctx->card; 365 card->dev = &pdev->dev; 366 card->name = "amd-soundwire"; 367 card->owner = THIS_MODULE; 368 card->late_probe = asoc_sdw_card_late_probe; 369 370 snd_soc_card_set_drvdata(card, ctx); 371 372 dmi_check_system(sof_sdw_quirk_table); 373 374 if (quirk_override != -1) { 375 dev_info(card->dev, "Overriding quirk 0x%lx => 0x%x\n", 376 sof_sdw_quirk, quirk_override); 377 sof_sdw_quirk = quirk_override; 378 } 379 380 log_quirks(card->dev); 381 382 ctx->mc_quirk = sof_sdw_quirk; 383 /* reset amp_num to ensure amp_num++ starts from 0 in each probe */ 384 for (i = 0; i < ctx->codec_info_list_count; i++) 385 codec_info_list[i].amp_num = 0; 386 387 ret = sof_card_dai_links_create(card); 388 if (ret < 0) 389 return ret; 390 391 /* 392 * the default amp_num is zero for each codec and 393 * amp_num will only be increased for active amp 394 * codecs on used platform 395 */ 396 for (i = 0; i < ctx->codec_info_list_count; i++) 397 amp_num += codec_info_list[i].amp_num; 398 399 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 400 " cfg-amp:%d", amp_num); 401 if (!card->components) 402 return -ENOMEM; 403 404 /* Register the card */ 405 ret = devm_snd_soc_register_card(card->dev, card); 406 if (ret) { 407 dev_err_probe(card->dev, ret, "snd_soc_register_card failed %d\n", ret); 408 asoc_sdw_mc_dailink_exit_loop(card); 409 return ret; 410 } 411 412 platform_set_drvdata(pdev, card); 413 414 return ret; 415 } 416 417 static void mc_remove(struct platform_device *pdev) 418 { 419 struct snd_soc_card *card = platform_get_drvdata(pdev); 420 421 asoc_sdw_mc_dailink_exit_loop(card); 422 } 423 424 static const struct platform_device_id mc_id_table[] = { 425 { "amd_sof_sdw", }, 426 {} 427 }; 428 MODULE_DEVICE_TABLE(platform, mc_id_table); 429 430 static struct platform_driver sof_sdw_driver = { 431 .driver = { 432 .name = "amd_sof_sdw", 433 .pm = &snd_soc_pm_ops, 434 }, 435 .probe = mc_probe, 436 .remove = mc_remove, 437 .id_table = mc_id_table, 438 }; 439 440 module_platform_driver(sof_sdw_driver); 441 442 MODULE_DESCRIPTION("ASoC AMD SoundWire Generic Machine driver"); 443 MODULE_AUTHOR("Vijendar Mukunda <Vijendar.Mukunda@amd.com"); 444 MODULE_LICENSE("GPL"); 445 MODULE_IMPORT_NS(SND_SOC_SDW_UTILS); 446 MODULE_IMPORT_NS(SND_SOC_AMD_SDW_MACH); 447