1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2019 Intel Corporation. All rights reserved. 7 // 8 // Author: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> 9 // 10 11 #include "sof-audio.h" 12 #include "ops.h" 13 14 /* 15 * helper to determine if there are only D0i3 compatible 16 * streams active 17 */ 18 bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev) 19 { 20 struct snd_pcm_substream *substream; 21 struct snd_sof_pcm *spcm; 22 bool d0i3_compatible_active = false; 23 int dir; 24 25 list_for_each_entry(spcm, &sdev->pcm_list, list) { 26 for_each_pcm_streams(dir) { 27 substream = spcm->stream[dir].substream; 28 if (!substream || !substream->runtime) 29 continue; 30 31 /* 32 * substream->runtime being not NULL indicates that 33 * that the stream is open. No need to check the 34 * stream state. 35 */ 36 if (!spcm->stream[dir].d0i3_compatible) 37 return false; 38 39 d0i3_compatible_active = true; 40 } 41 } 42 43 return d0i3_compatible_active; 44 } 45 EXPORT_SYMBOL(snd_sof_dsp_only_d0i3_compatible_stream_active); 46 47 bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev) 48 { 49 struct snd_sof_pcm *spcm; 50 51 list_for_each_entry(spcm, &sdev->pcm_list, list) { 52 if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].suspend_ignored || 53 spcm->stream[SNDRV_PCM_STREAM_CAPTURE].suspend_ignored) 54 return true; 55 } 56 57 return false; 58 } 59 60 int sof_set_hw_params_upon_resume(struct device *dev) 61 { 62 struct snd_sof_dev *sdev = dev_get_drvdata(dev); 63 struct snd_pcm_substream *substream; 64 struct snd_sof_pcm *spcm; 65 snd_pcm_state_t state; 66 int dir; 67 68 /* 69 * SOF requires hw_params to be set-up internally upon resume. 70 * So, set the flag to indicate this for those streams that 71 * have been suspended. 72 */ 73 list_for_each_entry(spcm, &sdev->pcm_list, list) { 74 for_each_pcm_streams(dir) { 75 /* 76 * do not reset hw_params upon resume for streams that 77 * were kept running during suspend 78 */ 79 if (spcm->stream[dir].suspend_ignored) 80 continue; 81 82 substream = spcm->stream[dir].substream; 83 if (!substream || !substream->runtime) 84 continue; 85 86 state = substream->runtime->status->state; 87 if (state == SNDRV_PCM_STATE_SUSPENDED) 88 spcm->prepared[dir] = false; 89 } 90 } 91 92 /* set internal flag for BE */ 93 return snd_sof_dsp_hw_params_upon_resume(sdev); 94 } 95 96 static int sof_restore_kcontrols(struct device *dev) 97 { 98 struct snd_sof_dev *sdev = dev_get_drvdata(dev); 99 struct snd_sof_control *scontrol; 100 int ipc_cmd, ctrl_type; 101 int ret = 0; 102 103 /* restore kcontrol values */ 104 list_for_each_entry(scontrol, &sdev->kcontrol_list, list) { 105 /* reset readback offset for scontrol after resuming */ 106 scontrol->readback_offset = 0; 107 108 /* notify DSP of kcontrol values */ 109 switch (scontrol->cmd) { 110 case SOF_CTRL_CMD_VOLUME: 111 case SOF_CTRL_CMD_ENUM: 112 case SOF_CTRL_CMD_SWITCH: 113 ipc_cmd = SOF_IPC_COMP_SET_VALUE; 114 ctrl_type = SOF_CTRL_TYPE_VALUE_CHAN_SET; 115 ret = snd_sof_ipc_set_get_comp_data(scontrol, 116 ipc_cmd, ctrl_type, 117 scontrol->cmd, 118 true); 119 break; 120 case SOF_CTRL_CMD_BINARY: 121 ipc_cmd = SOF_IPC_COMP_SET_DATA; 122 ctrl_type = SOF_CTRL_TYPE_DATA_SET; 123 ret = snd_sof_ipc_set_get_comp_data(scontrol, 124 ipc_cmd, ctrl_type, 125 scontrol->cmd, 126 true); 127 break; 128 129 default: 130 break; 131 } 132 133 if (ret < 0) { 134 dev_err(dev, 135 "error: failed kcontrol value set for widget: %d\n", 136 scontrol->comp_id); 137 138 return ret; 139 } 140 } 141 142 return 0; 143 } 144 145 int sof_restore_pipelines(struct device *dev) 146 { 147 struct snd_sof_dev *sdev = dev_get_drvdata(dev); 148 struct snd_sof_widget *swidget; 149 struct snd_sof_route *sroute; 150 struct sof_ipc_pipe_new *pipeline; 151 struct snd_sof_dai *dai; 152 struct sof_ipc_comp_dai *comp_dai; 153 struct sof_ipc_cmd_hdr *hdr; 154 int ret; 155 156 /* restore pipeline components */ 157 list_for_each_entry_reverse(swidget, &sdev->widget_list, list) { 158 struct sof_ipc_comp_reply r; 159 160 /* skip if there is no private data */ 161 if (!swidget->private) 162 continue; 163 164 switch (swidget->id) { 165 case snd_soc_dapm_dai_in: 166 case snd_soc_dapm_dai_out: 167 dai = swidget->private; 168 comp_dai = &dai->comp_dai; 169 ret = sof_ipc_tx_message(sdev->ipc, 170 comp_dai->comp.hdr.cmd, 171 comp_dai, sizeof(*comp_dai), 172 &r, sizeof(r)); 173 break; 174 case snd_soc_dapm_scheduler: 175 176 /* 177 * During suspend, all DSP cores are powered off. 178 * Therefore upon resume, create the pipeline comp 179 * and power up the core that the pipeline is 180 * scheduled on. 181 */ 182 pipeline = swidget->private; 183 ret = sof_load_pipeline_ipc(dev, pipeline, &r); 184 break; 185 default: 186 hdr = swidget->private; 187 ret = sof_ipc_tx_message(sdev->ipc, hdr->cmd, 188 swidget->private, hdr->size, 189 &r, sizeof(r)); 190 break; 191 } 192 if (ret < 0) { 193 dev_err(dev, 194 "error: failed to load widget type %d with ID: %d\n", 195 swidget->widget->id, swidget->comp_id); 196 197 return ret; 198 } 199 } 200 201 /* restore pipeline connections */ 202 list_for_each_entry_reverse(sroute, &sdev->route_list, list) { 203 struct sof_ipc_pipe_comp_connect *connect; 204 struct sof_ipc_reply reply; 205 206 /* skip if there's no private data */ 207 if (!sroute->private) 208 continue; 209 210 connect = sroute->private; 211 212 /* send ipc */ 213 ret = sof_ipc_tx_message(sdev->ipc, 214 connect->hdr.cmd, 215 connect, sizeof(*connect), 216 &reply, sizeof(reply)); 217 if (ret < 0) { 218 dev_err(dev, 219 "error: failed to load route sink %s control %s source %s\n", 220 sroute->route->sink, 221 sroute->route->control ? sroute->route->control 222 : "none", 223 sroute->route->source); 224 225 return ret; 226 } 227 } 228 229 /* restore dai links */ 230 list_for_each_entry_reverse(dai, &sdev->dai_list, list) { 231 struct sof_ipc_reply reply; 232 struct sof_ipc_dai_config *config = dai->dai_config; 233 234 if (!config) { 235 dev_err(dev, "error: no config for DAI %s\n", 236 dai->name); 237 continue; 238 } 239 240 /* 241 * The link DMA channel would be invalidated for running 242 * streams but not for streams that were in the PAUSED 243 * state during suspend. So invalidate it here before setting 244 * the dai config in the DSP. 245 */ 246 if (config->type == SOF_DAI_INTEL_HDA) 247 config->hda.link_dma_ch = DMA_CHAN_INVALID; 248 249 ret = sof_ipc_tx_message(sdev->ipc, 250 config->hdr.cmd, config, 251 config->hdr.size, 252 &reply, sizeof(reply)); 253 254 if (ret < 0) { 255 dev_err(dev, 256 "error: failed to set dai config for %s\n", 257 dai->name); 258 259 return ret; 260 } 261 } 262 263 /* complete pipeline */ 264 list_for_each_entry(swidget, &sdev->widget_list, list) { 265 switch (swidget->id) { 266 case snd_soc_dapm_scheduler: 267 swidget->complete = 268 snd_sof_complete_pipeline(dev, swidget); 269 break; 270 default: 271 break; 272 } 273 } 274 275 /* restore pipeline kcontrols */ 276 ret = sof_restore_kcontrols(dev); 277 if (ret < 0) 278 dev_err(dev, 279 "error: restoring kcontrols after resume\n"); 280 281 return ret; 282 } 283 284 /* 285 * Generic object lookup APIs. 286 */ 287 288 struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_soc_component *scomp, 289 const char *name) 290 { 291 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); 292 struct snd_sof_pcm *spcm; 293 294 list_for_each_entry(spcm, &sdev->pcm_list, list) { 295 /* match with PCM dai name */ 296 if (strcmp(spcm->pcm.dai_name, name) == 0) 297 return spcm; 298 299 /* match with playback caps name if set */ 300 if (*spcm->pcm.caps[0].name && 301 !strcmp(spcm->pcm.caps[0].name, name)) 302 return spcm; 303 304 /* match with capture caps name if set */ 305 if (*spcm->pcm.caps[1].name && 306 !strcmp(spcm->pcm.caps[1].name, name)) 307 return spcm; 308 } 309 310 return NULL; 311 } 312 313 struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_soc_component *scomp, 314 unsigned int comp_id, 315 int *direction) 316 { 317 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); 318 struct snd_sof_pcm *spcm; 319 int dir; 320 321 list_for_each_entry(spcm, &sdev->pcm_list, list) { 322 for_each_pcm_streams(dir) { 323 if (spcm->stream[dir].comp_id == comp_id) { 324 *direction = dir; 325 return spcm; 326 } 327 } 328 } 329 330 return NULL; 331 } 332 333 struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_soc_component *scomp, 334 unsigned int pcm_id) 335 { 336 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); 337 struct snd_sof_pcm *spcm; 338 339 list_for_each_entry(spcm, &sdev->pcm_list, list) { 340 if (le32_to_cpu(spcm->pcm.pcm_id) == pcm_id) 341 return spcm; 342 } 343 344 return NULL; 345 } 346 347 struct snd_sof_widget *snd_sof_find_swidget(struct snd_soc_component *scomp, 348 const char *name) 349 { 350 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); 351 struct snd_sof_widget *swidget; 352 353 list_for_each_entry(swidget, &sdev->widget_list, list) { 354 if (strcmp(name, swidget->widget->name) == 0) 355 return swidget; 356 } 357 358 return NULL; 359 } 360 361 /* find widget by stream name and direction */ 362 struct snd_sof_widget * 363 snd_sof_find_swidget_sname(struct snd_soc_component *scomp, 364 const char *pcm_name, int dir) 365 { 366 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); 367 struct snd_sof_widget *swidget; 368 enum snd_soc_dapm_type type; 369 370 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 371 type = snd_soc_dapm_aif_in; 372 else 373 type = snd_soc_dapm_aif_out; 374 375 list_for_each_entry(swidget, &sdev->widget_list, list) { 376 if (!strcmp(pcm_name, swidget->widget->sname) && 377 swidget->id == type) 378 return swidget; 379 } 380 381 return NULL; 382 } 383 384 struct snd_sof_dai *snd_sof_find_dai(struct snd_soc_component *scomp, 385 const char *name) 386 { 387 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); 388 struct snd_sof_dai *dai; 389 390 list_for_each_entry(dai, &sdev->dai_list, list) { 391 if (dai->name && (strcmp(name, dai->name) == 0)) 392 return dai; 393 } 394 395 return NULL; 396 } 397 398 /* 399 * SOF Driver enumeration. 400 */ 401 int sof_machine_check(struct snd_sof_dev *sdev) 402 { 403 struct snd_sof_pdata *sof_pdata = sdev->pdata; 404 const struct sof_dev_desc *desc = sof_pdata->desc; 405 struct snd_soc_acpi_mach *mach; 406 int ret; 407 408 /* force nocodec mode */ 409 #if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE) 410 dev_warn(sdev->dev, "Force to use nocodec mode\n"); 411 goto nocodec; 412 #endif 413 414 /* find machine */ 415 snd_sof_machine_select(sdev); 416 if (sof_pdata->machine) { 417 snd_sof_set_mach_params(sof_pdata->machine, sdev->dev); 418 return 0; 419 } 420 421 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC) 422 dev_err(sdev->dev, "error: no matching ASoC machine driver found - aborting probe\n"); 423 return -ENODEV; 424 #endif 425 #if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE) 426 nocodec: 427 #endif 428 /* select nocodec mode */ 429 dev_warn(sdev->dev, "Using nocodec machine driver\n"); 430 mach = devm_kzalloc(sdev->dev, sizeof(*mach), GFP_KERNEL); 431 if (!mach) 432 return -ENOMEM; 433 434 mach->drv_name = "sof-nocodec"; 435 sof_pdata->tplg_filename = desc->nocodec_tplg_filename; 436 437 ret = sof_nocodec_setup(sdev->dev, desc->ops); 438 if (ret < 0) 439 return ret; 440 441 sof_pdata->machine = mach; 442 snd_sof_set_mach_params(sof_pdata->machine, sdev->dev); 443 444 return 0; 445 } 446 EXPORT_SYMBOL(sof_machine_check); 447 448 int sof_machine_register(struct snd_sof_dev *sdev, void *pdata) 449 { 450 struct snd_sof_pdata *plat_data = (struct snd_sof_pdata *)pdata; 451 const char *drv_name; 452 const void *mach; 453 int size; 454 455 drv_name = plat_data->machine->drv_name; 456 mach = (const void *)plat_data->machine; 457 size = sizeof(*plat_data->machine); 458 459 /* register machine driver, pass machine info as pdata */ 460 plat_data->pdev_mach = 461 platform_device_register_data(sdev->dev, drv_name, 462 PLATFORM_DEVID_NONE, mach, size); 463 if (IS_ERR(plat_data->pdev_mach)) 464 return PTR_ERR(plat_data->pdev_mach); 465 466 dev_dbg(sdev->dev, "created machine %s\n", 467 dev_name(&plat_data->pdev_mach->dev)); 468 469 return 0; 470 } 471 EXPORT_SYMBOL(sof_machine_register); 472 473 void sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata) 474 { 475 struct snd_sof_pdata *plat_data = (struct snd_sof_pdata *)pdata; 476 477 if (!IS_ERR_OR_NULL(plat_data->pdev_mach)) 478 platform_device_unregister(plat_data->pdev_mach); 479 } 480 EXPORT_SYMBOL(sof_machine_unregister); 481