1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2020, Linaro Limited 3 4 #include <dt-bindings/soc/qcom,gpr.h> 5 #include <linux/delay.h> 6 #include <linux/jiffies.h> 7 #include <linux/kernel.h> 8 #include <linux/module.h> 9 #include <linux/of.h> 10 #include <linux/of_platform.h> 11 #include <linux/sched.h> 12 #include <linux/slab.h> 13 #include <linux/soc/qcom/apr.h> 14 #include <linux/wait.h> 15 #include <sound/soc.h> 16 #include <sound/soc-dapm.h> 17 #include <sound/pcm.h> 18 #include "audioreach.h" 19 #include "q6apm.h" 20 21 /* Graph Management */ 22 struct apm_graph_mgmt_cmd { 23 struct apm_module_param_data param_data; 24 uint32_t num_sub_graphs; 25 uint32_t sub_graph_id_list[]; 26 } __packed; 27 28 #define APM_GRAPH_MGMT_PSIZE(p, n) ALIGN(struct_size(p, sub_graph_id_list, n), 8) 29 30 int q6apm_send_cmd_sync(struct q6apm *apm, struct gpr_pkt *pkt, uint32_t rsp_opcode) 31 { 32 gpr_device_t *gdev = apm->gdev; 33 34 return audioreach_send_cmd_sync(&gdev->dev, gdev, &apm->result, &apm->lock, 35 NULL, &apm->wait, pkt, rsp_opcode); 36 } 37 38 static struct audioreach_graph *q6apm_get_audioreach_graph(struct q6apm *apm, uint32_t graph_id) 39 { 40 struct audioreach_graph_info *info; 41 struct audioreach_graph *graph; 42 int id; 43 44 mutex_lock(&apm->lock); 45 graph = idr_find(&apm->graph_idr, graph_id); 46 mutex_unlock(&apm->lock); 47 48 if (graph) { 49 kref_get(&graph->refcount); 50 return graph; 51 } 52 53 info = idr_find(&apm->graph_info_idr, graph_id); 54 55 if (!info) 56 return ERR_PTR(-ENODEV); 57 58 graph = kzalloc(sizeof(*graph), GFP_KERNEL); 59 if (!graph) 60 return ERR_PTR(-ENOMEM); 61 62 graph->apm = apm; 63 graph->info = info; 64 graph->id = graph_id; 65 66 graph->graph = audioreach_alloc_graph_pkt(apm, info); 67 if (IS_ERR(graph->graph)) { 68 void *err = graph->graph; 69 70 kfree(graph); 71 return ERR_CAST(err); 72 } 73 74 mutex_lock(&apm->lock); 75 id = idr_alloc(&apm->graph_idr, graph, graph_id, graph_id + 1, GFP_KERNEL); 76 if (id < 0) { 77 dev_err(apm->dev, "Unable to allocate graph id (%d)\n", graph_id); 78 kfree(graph->graph); 79 kfree(graph); 80 mutex_unlock(&apm->lock); 81 return ERR_PTR(id); 82 } 83 mutex_unlock(&apm->lock); 84 85 kref_init(&graph->refcount); 86 87 q6apm_send_cmd_sync(apm, graph->graph, 0); 88 89 return graph; 90 } 91 92 static int audioreach_graph_mgmt_cmd(struct audioreach_graph *graph, uint32_t opcode) 93 { 94 struct audioreach_graph_info *info = graph->info; 95 int num_sub_graphs = info->num_sub_graphs; 96 struct apm_module_param_data *param_data; 97 struct apm_graph_mgmt_cmd *mgmt_cmd; 98 struct audioreach_sub_graph *sg; 99 struct q6apm *apm = graph->apm; 100 int i = 0, rc, payload_size; 101 struct gpr_pkt *pkt; 102 103 payload_size = APM_GRAPH_MGMT_PSIZE(mgmt_cmd, num_sub_graphs); 104 105 pkt = audioreach_alloc_apm_cmd_pkt(payload_size, opcode, 0); 106 if (IS_ERR(pkt)) 107 return PTR_ERR(pkt); 108 109 mgmt_cmd = (void *)pkt + GPR_HDR_SIZE + APM_CMD_HDR_SIZE; 110 111 mgmt_cmd->num_sub_graphs = num_sub_graphs; 112 113 param_data = &mgmt_cmd->param_data; 114 param_data->module_instance_id = APM_MODULE_INSTANCE_ID; 115 param_data->param_id = APM_PARAM_ID_SUB_GRAPH_LIST; 116 param_data->param_size = payload_size - APM_MODULE_PARAM_DATA_SIZE; 117 118 list_for_each_entry(sg, &info->sg_list, node) 119 mgmt_cmd->sub_graph_id_list[i++] = sg->sub_graph_id; 120 121 rc = q6apm_send_cmd_sync(apm, pkt, 0); 122 123 kfree(pkt); 124 125 return rc; 126 } 127 128 static void q6apm_put_audioreach_graph(struct kref *ref) 129 { 130 struct audioreach_graph *graph; 131 struct q6apm *apm; 132 133 graph = container_of(ref, struct audioreach_graph, refcount); 134 apm = graph->apm; 135 136 audioreach_graph_mgmt_cmd(graph, APM_CMD_GRAPH_CLOSE); 137 138 mutex_lock(&apm->lock); 139 graph = idr_remove(&apm->graph_idr, graph->id); 140 mutex_unlock(&apm->lock); 141 142 kfree(graph->graph); 143 kfree(graph); 144 } 145 146 static int q6apm_get_apm_state(struct q6apm *apm) 147 { 148 struct gpr_pkt *pkt; 149 150 pkt = audioreach_alloc_apm_cmd_pkt(0, APM_CMD_GET_SPF_STATE, 0); 151 if (IS_ERR(pkt)) 152 return PTR_ERR(pkt); 153 154 q6apm_send_cmd_sync(apm, pkt, APM_CMD_RSP_GET_SPF_STATE); 155 156 kfree(pkt); 157 158 return apm->state; 159 } 160 161 static struct audioreach_module *__q6apm_find_module_by_mid(struct q6apm *apm, 162 struct audioreach_graph_info *info, 163 uint32_t mid) 164 { 165 struct audioreach_container *container; 166 struct audioreach_sub_graph *sgs; 167 struct audioreach_module *module; 168 169 list_for_each_entry(sgs, &info->sg_list, node) { 170 list_for_each_entry(container, &sgs->container_list, node) { 171 list_for_each_entry(module, &container->modules_list, node) { 172 if (mid == module->module_id) 173 return module; 174 } 175 } 176 } 177 178 return NULL; 179 } 180 181 int q6apm_graph_media_format_shmem(struct q6apm_graph *graph, 182 struct audioreach_module_config *cfg) 183 { 184 struct audioreach_module *module; 185 186 if (cfg->direction == SNDRV_PCM_STREAM_CAPTURE) 187 module = q6apm_find_module_by_mid(graph, MODULE_ID_RD_SHARED_MEM_EP); 188 else 189 module = q6apm_find_module_by_mid(graph, MODULE_ID_WR_SHARED_MEM_EP); 190 191 if (!module) 192 return -ENODEV; 193 194 audioreach_set_media_format(graph, module, cfg); 195 196 return 0; 197 198 } 199 EXPORT_SYMBOL_GPL(q6apm_graph_media_format_shmem); 200 201 int q6apm_map_memory_regions(struct q6apm_graph *graph, unsigned int dir, phys_addr_t phys, 202 size_t period_sz, unsigned int periods) 203 { 204 struct audioreach_graph_data *data; 205 struct audio_buffer *buf; 206 int cnt; 207 int rc; 208 209 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 210 data = &graph->rx_data; 211 else 212 data = &graph->tx_data; 213 214 mutex_lock(&graph->lock); 215 216 if (data->buf) { 217 mutex_unlock(&graph->lock); 218 return 0; 219 } 220 221 buf = kzalloc(((sizeof(struct audio_buffer)) * periods), GFP_KERNEL); 222 if (!buf) { 223 mutex_unlock(&graph->lock); 224 return -ENOMEM; 225 } 226 227 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 228 data = &graph->rx_data; 229 else 230 data = &graph->tx_data; 231 232 data->buf = buf; 233 234 buf[0].phys = phys; 235 buf[0].size = period_sz; 236 237 for (cnt = 1; cnt < periods; cnt++) { 238 if (period_sz > 0) { 239 buf[cnt].phys = buf[0].phys + (cnt * period_sz); 240 buf[cnt].size = period_sz; 241 } 242 } 243 data->num_periods = periods; 244 245 mutex_unlock(&graph->lock); 246 247 rc = audioreach_map_memory_regions(graph, dir, period_sz, periods, 1); 248 if (rc < 0) { 249 dev_err(graph->dev, "Memory_map_regions failed\n"); 250 audioreach_graph_free_buf(graph); 251 } 252 253 return rc; 254 } 255 EXPORT_SYMBOL_GPL(q6apm_map_memory_regions); 256 257 int q6apm_unmap_memory_regions(struct q6apm_graph *graph, unsigned int dir) 258 { 259 struct apm_cmd_shared_mem_unmap_regions *cmd; 260 struct audioreach_graph_data *data; 261 struct gpr_pkt *pkt; 262 int rc; 263 264 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 265 data = &graph->rx_data; 266 else 267 data = &graph->tx_data; 268 269 if (!data->mem_map_handle) 270 return 0; 271 272 pkt = audioreach_alloc_apm_pkt(sizeof(*cmd), APM_CMD_SHARED_MEM_UNMAP_REGIONS, dir, 273 graph->port->id); 274 if (IS_ERR(pkt)) 275 return PTR_ERR(pkt); 276 277 cmd = (void *)pkt + GPR_HDR_SIZE; 278 cmd->mem_map_handle = data->mem_map_handle; 279 280 rc = audioreach_graph_send_cmd_sync(graph, pkt, APM_CMD_SHARED_MEM_UNMAP_REGIONS); 281 kfree(pkt); 282 283 audioreach_graph_free_buf(graph); 284 285 return rc; 286 } 287 EXPORT_SYMBOL_GPL(q6apm_unmap_memory_regions); 288 289 int q6apm_graph_media_format_pcm(struct q6apm_graph *graph, struct audioreach_module_config *cfg) 290 { 291 struct audioreach_graph_info *info = graph->info; 292 struct audioreach_sub_graph *sgs; 293 struct audioreach_container *container; 294 struct audioreach_module *module; 295 296 list_for_each_entry(sgs, &info->sg_list, node) { 297 list_for_each_entry(container, &sgs->container_list, node) { 298 list_for_each_entry(module, &container->modules_list, node) { 299 if ((module->module_id == MODULE_ID_WR_SHARED_MEM_EP) || 300 (module->module_id == MODULE_ID_RD_SHARED_MEM_EP)) 301 continue; 302 303 audioreach_set_media_format(graph, module, cfg); 304 } 305 } 306 } 307 308 return 0; 309 310 } 311 EXPORT_SYMBOL_GPL(q6apm_graph_media_format_pcm); 312 313 static int q6apm_graph_get_tx_shmem_module_iid(struct q6apm_graph *graph) 314 { 315 struct audioreach_module *module; 316 317 module = q6apm_find_module_by_mid(graph, MODULE_ID_RD_SHARED_MEM_EP); 318 if (!module) 319 return -ENODEV; 320 321 return module->instance_id; 322 323 } 324 325 int q6apm_graph_get_rx_shmem_module_iid(struct q6apm_graph *graph) 326 { 327 struct audioreach_module *module; 328 329 module = q6apm_find_module_by_mid(graph, MODULE_ID_WR_SHARED_MEM_EP); 330 if (!module) 331 return -ENODEV; 332 333 return module->instance_id; 334 335 } 336 EXPORT_SYMBOL_GPL(q6apm_graph_get_rx_shmem_module_iid); 337 338 int q6apm_write_async(struct q6apm_graph *graph, uint32_t len, uint32_t msw_ts, 339 uint32_t lsw_ts, uint32_t wflags) 340 { 341 struct apm_data_cmd_wr_sh_mem_ep_data_buffer_v2 *write_buffer; 342 struct audio_buffer *ab; 343 struct gpr_pkt *pkt; 344 int rc, iid; 345 346 iid = q6apm_graph_get_rx_shmem_module_iid(graph); 347 pkt = audioreach_alloc_pkt(sizeof(*write_buffer), DATA_CMD_WR_SH_MEM_EP_DATA_BUFFER_V2, 348 graph->rx_data.dsp_buf | (len << APM_WRITE_TOKEN_LEN_SHIFT), 349 graph->port->id, iid); 350 if (IS_ERR(pkt)) 351 return PTR_ERR(pkt); 352 353 write_buffer = (void *)pkt + GPR_HDR_SIZE; 354 355 mutex_lock(&graph->lock); 356 ab = &graph->rx_data.buf[graph->rx_data.dsp_buf]; 357 358 write_buffer->buf_addr_lsw = lower_32_bits(ab->phys); 359 write_buffer->buf_addr_msw = upper_32_bits(ab->phys); 360 write_buffer->buf_size = len; 361 write_buffer->timestamp_lsw = lsw_ts; 362 write_buffer->timestamp_msw = msw_ts; 363 write_buffer->mem_map_handle = graph->rx_data.mem_map_handle; 364 write_buffer->flags = wflags; 365 366 graph->rx_data.dsp_buf++; 367 368 if (graph->rx_data.dsp_buf >= graph->rx_data.num_periods) 369 graph->rx_data.dsp_buf = 0; 370 371 mutex_unlock(&graph->lock); 372 373 rc = gpr_send_port_pkt(graph->port, pkt); 374 375 kfree(pkt); 376 377 return rc; 378 } 379 EXPORT_SYMBOL_GPL(q6apm_write_async); 380 381 int q6apm_read(struct q6apm_graph *graph) 382 { 383 struct data_cmd_rd_sh_mem_ep_data_buffer_v2 *read_buffer; 384 struct audioreach_graph_data *port; 385 struct audio_buffer *ab; 386 struct gpr_pkt *pkt; 387 int rc, iid; 388 389 iid = q6apm_graph_get_tx_shmem_module_iid(graph); 390 pkt = audioreach_alloc_pkt(sizeof(*read_buffer), DATA_CMD_RD_SH_MEM_EP_DATA_BUFFER_V2, 391 graph->tx_data.dsp_buf, graph->port->id, iid); 392 if (IS_ERR(pkt)) 393 return PTR_ERR(pkt); 394 395 read_buffer = (void *)pkt + GPR_HDR_SIZE; 396 397 mutex_lock(&graph->lock); 398 port = &graph->tx_data; 399 ab = &port->buf[port->dsp_buf]; 400 401 read_buffer->buf_addr_lsw = lower_32_bits(ab->phys); 402 read_buffer->buf_addr_msw = upper_32_bits(ab->phys); 403 read_buffer->mem_map_handle = port->mem_map_handle; 404 read_buffer->buf_size = ab->size; 405 406 port->dsp_buf++; 407 408 if (port->dsp_buf >= port->num_periods) 409 port->dsp_buf = 0; 410 411 mutex_unlock(&graph->lock); 412 413 rc = gpr_send_port_pkt(graph->port, pkt); 414 kfree(pkt); 415 416 return rc; 417 } 418 EXPORT_SYMBOL_GPL(q6apm_read); 419 420 static int graph_callback(struct gpr_resp_pkt *data, void *priv, int op) 421 { 422 struct data_cmd_rsp_rd_sh_mem_ep_data_buffer_done_v2 *rd_done; 423 struct data_cmd_rsp_wr_sh_mem_ep_data_buffer_done_v2 *done; 424 struct apm_cmd_rsp_shared_mem_map_regions *rsp; 425 struct gpr_ibasic_rsp_result_t *result; 426 struct q6apm_graph *graph = priv; 427 struct gpr_hdr *hdr = &data->hdr; 428 struct device *dev = graph->dev; 429 uint32_t client_event; 430 phys_addr_t phys; 431 int token; 432 433 result = data->payload; 434 435 switch (hdr->opcode) { 436 case DATA_CMD_RSP_WR_SH_MEM_EP_DATA_BUFFER_DONE_V2: 437 client_event = APM_CLIENT_EVENT_DATA_WRITE_DONE; 438 mutex_lock(&graph->lock); 439 token = hdr->token & APM_WRITE_TOKEN_MASK; 440 441 done = data->payload; 442 phys = graph->rx_data.buf[token].phys; 443 mutex_unlock(&graph->lock); 444 445 if (lower_32_bits(phys) == done->buf_addr_lsw && 446 upper_32_bits(phys) == done->buf_addr_msw) { 447 graph->result.opcode = hdr->opcode; 448 graph->result.status = done->status; 449 if (graph->cb) 450 graph->cb(client_event, hdr->token, data->payload, graph->priv); 451 } else { 452 dev_err(dev, "WR BUFF Unexpected addr %08x-%08x\n", done->buf_addr_lsw, 453 done->buf_addr_msw); 454 } 455 456 break; 457 case APM_CMD_RSP_SHARED_MEM_MAP_REGIONS: 458 graph->result.opcode = hdr->opcode; 459 graph->result.status = 0; 460 rsp = data->payload; 461 462 if (hdr->token == SNDRV_PCM_STREAM_PLAYBACK) 463 graph->rx_data.mem_map_handle = rsp->mem_map_handle; 464 else 465 graph->tx_data.mem_map_handle = rsp->mem_map_handle; 466 467 wake_up(&graph->cmd_wait); 468 break; 469 case DATA_CMD_RSP_RD_SH_MEM_EP_DATA_BUFFER_V2: 470 client_event = APM_CLIENT_EVENT_DATA_READ_DONE; 471 mutex_lock(&graph->lock); 472 rd_done = data->payload; 473 phys = graph->tx_data.buf[hdr->token].phys; 474 mutex_unlock(&graph->lock); 475 476 if (upper_32_bits(phys) == rd_done->buf_addr_msw && 477 lower_32_bits(phys) == rd_done->buf_addr_lsw) { 478 graph->result.opcode = hdr->opcode; 479 graph->result.status = rd_done->status; 480 if (graph->cb) 481 graph->cb(client_event, hdr->token, data->payload, graph->priv); 482 } else { 483 dev_err(dev, "RD BUFF Unexpected addr %08x-%08x\n", rd_done->buf_addr_lsw, 484 rd_done->buf_addr_msw); 485 } 486 break; 487 case DATA_CMD_WR_SH_MEM_EP_EOS_RENDERED: 488 break; 489 case GPR_BASIC_RSP_RESULT: 490 switch (result->opcode) { 491 case APM_CMD_SHARED_MEM_UNMAP_REGIONS: 492 graph->result.opcode = result->opcode; 493 graph->result.status = 0; 494 if (hdr->token == SNDRV_PCM_STREAM_PLAYBACK) 495 graph->rx_data.mem_map_handle = 0; 496 else 497 graph->tx_data.mem_map_handle = 0; 498 499 wake_up(&graph->cmd_wait); 500 break; 501 case APM_CMD_SHARED_MEM_MAP_REGIONS: 502 case DATA_CMD_WR_SH_MEM_EP_MEDIA_FORMAT: 503 case APM_CMD_SET_CFG: 504 graph->result.opcode = result->opcode; 505 graph->result.status = result->status; 506 if (result->status) 507 dev_err(dev, "Error (%d) Processing 0x%08x cmd\n", 508 result->status, result->opcode); 509 wake_up(&graph->cmd_wait); 510 break; 511 default: 512 break; 513 } 514 break; 515 default: 516 break; 517 } 518 return 0; 519 } 520 521 struct q6apm_graph *q6apm_graph_open(struct device *dev, q6apm_cb cb, 522 void *priv, int graph_id) 523 { 524 struct q6apm *apm = dev_get_drvdata(dev->parent); 525 struct audioreach_graph *ar_graph; 526 struct q6apm_graph *graph; 527 int ret; 528 529 ar_graph = q6apm_get_audioreach_graph(apm, graph_id); 530 if (IS_ERR(ar_graph)) { 531 dev_err(dev, "No graph found with id %d\n", graph_id); 532 return ERR_CAST(ar_graph); 533 } 534 535 graph = kzalloc(sizeof(*graph), GFP_KERNEL); 536 if (!graph) { 537 ret = -ENOMEM; 538 goto put_ar_graph; 539 } 540 541 graph->apm = apm; 542 graph->priv = priv; 543 graph->cb = cb; 544 graph->info = ar_graph->info; 545 graph->ar_graph = ar_graph; 546 graph->id = ar_graph->id; 547 graph->dev = dev; 548 549 mutex_init(&graph->lock); 550 init_waitqueue_head(&graph->cmd_wait); 551 552 graph->port = gpr_alloc_port(apm->gdev, dev, graph_callback, graph); 553 if (IS_ERR(graph->port)) { 554 ret = PTR_ERR(graph->port); 555 goto free_graph; 556 } 557 558 return graph; 559 560 free_graph: 561 kfree(graph); 562 put_ar_graph: 563 kref_put(&ar_graph->refcount, q6apm_put_audioreach_graph); 564 return ERR_PTR(ret); 565 } 566 EXPORT_SYMBOL_GPL(q6apm_graph_open); 567 568 int q6apm_graph_close(struct q6apm_graph *graph) 569 { 570 struct audioreach_graph *ar_graph = graph->ar_graph; 571 572 gpr_free_port(graph->port); 573 kref_put(&ar_graph->refcount, q6apm_put_audioreach_graph); 574 kfree(graph); 575 576 return 0; 577 } 578 EXPORT_SYMBOL_GPL(q6apm_graph_close); 579 580 int q6apm_graph_prepare(struct q6apm_graph *graph) 581 { 582 return audioreach_graph_mgmt_cmd(graph->ar_graph, APM_CMD_GRAPH_PREPARE); 583 } 584 EXPORT_SYMBOL_GPL(q6apm_graph_prepare); 585 586 int q6apm_graph_start(struct q6apm_graph *graph) 587 { 588 struct audioreach_graph *ar_graph = graph->ar_graph; 589 int ret = 0; 590 591 if (ar_graph->start_count == 0) 592 ret = audioreach_graph_mgmt_cmd(ar_graph, APM_CMD_GRAPH_START); 593 594 ar_graph->start_count++; 595 596 return ret; 597 } 598 EXPORT_SYMBOL_GPL(q6apm_graph_start); 599 600 int q6apm_graph_stop(struct q6apm_graph *graph) 601 { 602 struct audioreach_graph *ar_graph = graph->ar_graph; 603 604 if (--ar_graph->start_count > 0) 605 return 0; 606 607 return audioreach_graph_mgmt_cmd(ar_graph, APM_CMD_GRAPH_STOP); 608 } 609 EXPORT_SYMBOL_GPL(q6apm_graph_stop); 610 611 int q6apm_graph_flush(struct q6apm_graph *graph) 612 { 613 return audioreach_graph_mgmt_cmd(graph->ar_graph, APM_CMD_GRAPH_FLUSH); 614 } 615 EXPORT_SYMBOL_GPL(q6apm_graph_flush); 616 617 static int q6apm_audio_probe(struct snd_soc_component *component) 618 { 619 return audioreach_tplg_init(component); 620 } 621 622 static void q6apm_audio_remove(struct snd_soc_component *component) 623 { 624 /* remove topology */ 625 snd_soc_tplg_component_remove(component); 626 } 627 628 #define APM_AUDIO_DRV_NAME "q6apm-audio" 629 630 static const struct snd_soc_component_driver q6apm_audio_component = { 631 .name = APM_AUDIO_DRV_NAME, 632 .probe = q6apm_audio_probe, 633 .remove = q6apm_audio_remove, 634 }; 635 636 static int apm_probe(gpr_device_t *gdev) 637 { 638 struct device *dev = &gdev->dev; 639 struct q6apm *apm; 640 int ret; 641 642 apm = devm_kzalloc(dev, sizeof(*apm), GFP_KERNEL); 643 if (!apm) 644 return -ENOMEM; 645 646 dev_set_drvdata(dev, apm); 647 648 mutex_init(&apm->lock); 649 apm->dev = dev; 650 apm->gdev = gdev; 651 init_waitqueue_head(&apm->wait); 652 653 INIT_LIST_HEAD(&apm->widget_list); 654 idr_init(&apm->graph_idr); 655 idr_init(&apm->graph_info_idr); 656 idr_init(&apm->sub_graphs_idr); 657 idr_init(&apm->containers_idr); 658 659 idr_init(&apm->modules_idr); 660 661 q6apm_get_apm_state(apm); 662 663 ret = devm_snd_soc_register_component(dev, &q6apm_audio_component, NULL, 0); 664 if (ret < 0) { 665 dev_err(dev, "failed to get register q6apm: %d\n", ret); 666 return ret; 667 } 668 669 return of_platform_populate(dev->of_node, NULL, NULL, dev); 670 } 671 672 struct audioreach_module *q6apm_find_module_by_mid(struct q6apm_graph *graph, uint32_t mid) 673 { 674 struct audioreach_graph_info *info = graph->info; 675 struct q6apm *apm = graph->apm; 676 677 return __q6apm_find_module_by_mid(apm, info, mid); 678 679 } 680 681 static int apm_callback(struct gpr_resp_pkt *data, void *priv, int op) 682 { 683 gpr_device_t *gdev = priv; 684 struct q6apm *apm = dev_get_drvdata(&gdev->dev); 685 struct device *dev = &gdev->dev; 686 struct gpr_ibasic_rsp_result_t *result; 687 struct gpr_hdr *hdr = &data->hdr; 688 689 result = data->payload; 690 691 switch (hdr->opcode) { 692 case APM_CMD_RSP_GET_SPF_STATE: 693 apm->result.opcode = hdr->opcode; 694 apm->result.status = 0; 695 /* First word of result it state */ 696 apm->state = result->opcode; 697 wake_up(&apm->wait); 698 break; 699 case GPR_BASIC_RSP_RESULT: 700 switch (result->opcode) { 701 case APM_CMD_GRAPH_START: 702 case APM_CMD_GRAPH_OPEN: 703 case APM_CMD_GRAPH_PREPARE: 704 case APM_CMD_GRAPH_CLOSE: 705 case APM_CMD_GRAPH_FLUSH: 706 case APM_CMD_GRAPH_STOP: 707 case APM_CMD_SET_CFG: 708 apm->result.opcode = result->opcode; 709 apm->result.status = result->status; 710 if (result->status) 711 dev_err(dev, "Error (%d) Processing 0x%08x cmd\n", result->status, 712 result->opcode); 713 wake_up(&apm->wait); 714 break; 715 default: 716 break; 717 } 718 break; 719 default: 720 break; 721 } 722 723 return 0; 724 } 725 726 #ifdef CONFIG_OF 727 static const struct of_device_id apm_device_id[] = { 728 { .compatible = "qcom,q6apm" }, 729 {}, 730 }; 731 MODULE_DEVICE_TABLE(of, apm_device_id); 732 #endif 733 734 static gpr_driver_t apm_driver = { 735 .probe = apm_probe, 736 .gpr_callback = apm_callback, 737 .driver = { 738 .name = "qcom-apm", 739 .of_match_table = of_match_ptr(apm_device_id), 740 }, 741 }; 742 743 module_gpr_driver(apm_driver); 744 MODULE_DESCRIPTION("Audio Process Manager"); 745 MODULE_LICENSE("GPL"); 746