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 struct q6apm *g_apm; 31 32 int q6apm_send_cmd_sync(struct q6apm *apm, struct gpr_pkt *pkt, uint32_t rsp_opcode) 33 { 34 gpr_device_t *gdev = apm->gdev; 35 36 return audioreach_send_cmd_sync(&gdev->dev, gdev, &apm->result, &apm->lock, 37 NULL, &apm->wait, pkt, rsp_opcode); 38 } 39 40 static struct audioreach_graph *q6apm_get_audioreach_graph(struct q6apm *apm, uint32_t graph_id) 41 { 42 struct audioreach_graph_info *info; 43 struct audioreach_graph *graph; 44 int id; 45 46 mutex_lock(&apm->lock); 47 graph = idr_find(&apm->graph_idr, graph_id); 48 mutex_unlock(&apm->lock); 49 50 if (graph) { 51 kref_get(&graph->refcount); 52 return graph; 53 } 54 55 info = idr_find(&apm->graph_info_idr, graph_id); 56 57 if (!info) 58 return ERR_PTR(-ENODEV); 59 60 graph = kzalloc(sizeof(*graph), GFP_KERNEL); 61 if (!graph) 62 return ERR_PTR(-ENOMEM); 63 64 graph->apm = apm; 65 graph->info = info; 66 graph->id = graph_id; 67 68 graph->graph = audioreach_alloc_graph_pkt(apm, info); 69 if (IS_ERR(graph->graph)) { 70 void *err = graph->graph; 71 72 kfree(graph); 73 return ERR_CAST(err); 74 } 75 76 mutex_lock(&apm->lock); 77 id = idr_alloc(&apm->graph_idr, graph, graph_id, graph_id + 1, GFP_KERNEL); 78 if (id < 0) { 79 dev_err(apm->dev, "Unable to allocate graph id (%d)\n", graph_id); 80 kfree(graph->graph); 81 kfree(graph); 82 mutex_unlock(&apm->lock); 83 return ERR_PTR(id); 84 } 85 mutex_unlock(&apm->lock); 86 87 kref_init(&graph->refcount); 88 89 q6apm_send_cmd_sync(apm, graph->graph, 0); 90 91 return graph; 92 } 93 94 static int audioreach_graph_mgmt_cmd(struct audioreach_graph *graph, uint32_t opcode) 95 { 96 struct audioreach_graph_info *info = graph->info; 97 int num_sub_graphs = info->num_sub_graphs; 98 struct apm_module_param_data *param_data; 99 struct apm_graph_mgmt_cmd *mgmt_cmd; 100 struct audioreach_sub_graph *sg; 101 struct q6apm *apm = graph->apm; 102 int i = 0, rc, payload_size; 103 struct gpr_pkt *pkt; 104 105 payload_size = APM_GRAPH_MGMT_PSIZE(mgmt_cmd, num_sub_graphs); 106 107 pkt = audioreach_alloc_apm_cmd_pkt(payload_size, opcode, 0); 108 if (IS_ERR(pkt)) 109 return PTR_ERR(pkt); 110 111 mgmt_cmd = (void *)pkt + GPR_HDR_SIZE + APM_CMD_HDR_SIZE; 112 113 mgmt_cmd->num_sub_graphs = num_sub_graphs; 114 115 param_data = &mgmt_cmd->param_data; 116 param_data->module_instance_id = APM_MODULE_INSTANCE_ID; 117 param_data->param_id = APM_PARAM_ID_SUB_GRAPH_LIST; 118 param_data->param_size = payload_size - APM_MODULE_PARAM_DATA_SIZE; 119 120 list_for_each_entry(sg, &info->sg_list, node) 121 mgmt_cmd->sub_graph_id_list[i++] = sg->sub_graph_id; 122 123 rc = q6apm_send_cmd_sync(apm, pkt, 0); 124 125 kfree(pkt); 126 127 return rc; 128 } 129 130 static void q6apm_put_audioreach_graph(struct kref *ref) 131 { 132 struct audioreach_graph *graph; 133 struct q6apm *apm; 134 135 graph = container_of(ref, struct audioreach_graph, refcount); 136 apm = graph->apm; 137 138 audioreach_graph_mgmt_cmd(graph, APM_CMD_GRAPH_CLOSE); 139 140 mutex_lock(&apm->lock); 141 graph = idr_remove(&apm->graph_idr, graph->id); 142 mutex_unlock(&apm->lock); 143 144 kfree(graph->graph); 145 kfree(graph); 146 } 147 148 149 static int q6apm_get_apm_state(struct q6apm *apm) 150 { 151 struct gpr_pkt *pkt; 152 153 pkt = audioreach_alloc_apm_cmd_pkt(0, APM_CMD_GET_SPF_STATE, 0); 154 if (IS_ERR(pkt)) 155 return PTR_ERR(pkt); 156 157 q6apm_send_cmd_sync(apm, pkt, APM_CMD_RSP_GET_SPF_STATE); 158 159 kfree(pkt); 160 161 return apm->state; 162 } 163 164 bool q6apm_is_adsp_ready(void) 165 { 166 if (g_apm) 167 return q6apm_get_apm_state(g_apm); 168 169 return false; 170 } 171 EXPORT_SYMBOL_GPL(q6apm_is_adsp_ready); 172 173 static struct audioreach_module *__q6apm_find_module_by_mid(struct q6apm *apm, 174 struct audioreach_graph_info *info, 175 uint32_t mid) 176 { 177 struct audioreach_container *container; 178 struct audioreach_sub_graph *sgs; 179 struct audioreach_module *module; 180 181 list_for_each_entry(sgs, &info->sg_list, node) { 182 list_for_each_entry(container, &sgs->container_list, node) { 183 list_for_each_entry(module, &container->modules_list, node) { 184 if (mid == module->module_id) 185 return module; 186 } 187 } 188 } 189 190 return NULL; 191 } 192 193 int q6apm_graph_media_format_shmem(struct q6apm_graph *graph, 194 struct audioreach_module_config *cfg) 195 { 196 struct audioreach_module *module; 197 198 if (cfg->direction == SNDRV_PCM_STREAM_CAPTURE) 199 module = q6apm_find_module_by_mid(graph, MODULE_ID_RD_SHARED_MEM_EP); 200 else 201 module = q6apm_find_module_by_mid(graph, MODULE_ID_WR_SHARED_MEM_EP); 202 203 if (!module) 204 return -ENODEV; 205 206 audioreach_set_media_format(graph, module, cfg); 207 208 return 0; 209 210 } 211 EXPORT_SYMBOL_GPL(q6apm_graph_media_format_shmem); 212 213 int q6apm_map_memory_regions(struct q6apm_graph *graph, unsigned int dir, phys_addr_t phys, 214 size_t period_sz, unsigned int periods) 215 { 216 struct audioreach_graph_data *data; 217 struct audio_buffer *buf; 218 int cnt; 219 int rc; 220 221 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 222 data = &graph->rx_data; 223 else 224 data = &graph->tx_data; 225 226 mutex_lock(&graph->lock); 227 228 if (data->buf) { 229 mutex_unlock(&graph->lock); 230 return 0; 231 } 232 233 buf = kzalloc(((sizeof(struct audio_buffer)) * periods), GFP_KERNEL); 234 if (!buf) { 235 mutex_unlock(&graph->lock); 236 return -ENOMEM; 237 } 238 239 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 240 data = &graph->rx_data; 241 else 242 data = &graph->tx_data; 243 244 data->buf = buf; 245 246 buf[0].phys = phys; 247 buf[0].size = period_sz; 248 249 for (cnt = 1; cnt < periods; cnt++) { 250 if (period_sz > 0) { 251 buf[cnt].phys = buf[0].phys + (cnt * period_sz); 252 buf[cnt].size = period_sz; 253 } 254 } 255 data->num_periods = periods; 256 257 mutex_unlock(&graph->lock); 258 259 rc = audioreach_map_memory_regions(graph, dir, period_sz, periods, 1); 260 if (rc < 0) { 261 dev_err(graph->dev, "Memory_map_regions failed\n"); 262 audioreach_graph_free_buf(graph); 263 } 264 265 return rc; 266 } 267 EXPORT_SYMBOL_GPL(q6apm_map_memory_regions); 268 269 int q6apm_unmap_memory_regions(struct q6apm_graph *graph, unsigned int dir) 270 { 271 struct apm_cmd_shared_mem_unmap_regions *cmd; 272 struct audioreach_graph_data *data; 273 struct gpr_pkt *pkt; 274 int rc; 275 276 if (dir == SNDRV_PCM_STREAM_PLAYBACK) 277 data = &graph->rx_data; 278 else 279 data = &graph->tx_data; 280 281 if (!data->mem_map_handle) 282 return 0; 283 284 pkt = audioreach_alloc_apm_pkt(sizeof(*cmd), APM_CMD_SHARED_MEM_UNMAP_REGIONS, dir, 285 graph->port->id); 286 if (IS_ERR(pkt)) 287 return PTR_ERR(pkt); 288 289 cmd = (void *)pkt + GPR_HDR_SIZE; 290 cmd->mem_map_handle = data->mem_map_handle; 291 292 rc = audioreach_graph_send_cmd_sync(graph, pkt, APM_CMD_SHARED_MEM_UNMAP_REGIONS); 293 kfree(pkt); 294 295 audioreach_graph_free_buf(graph); 296 297 return rc; 298 } 299 EXPORT_SYMBOL_GPL(q6apm_unmap_memory_regions); 300 301 int q6apm_graph_media_format_pcm(struct q6apm_graph *graph, struct audioreach_module_config *cfg) 302 { 303 struct audioreach_graph_info *info = graph->info; 304 struct audioreach_sub_graph *sgs; 305 struct audioreach_container *container; 306 struct audioreach_module *module; 307 308 list_for_each_entry(sgs, &info->sg_list, node) { 309 list_for_each_entry(container, &sgs->container_list, node) { 310 list_for_each_entry(module, &container->modules_list, node) { 311 if ((module->module_id == MODULE_ID_WR_SHARED_MEM_EP) || 312 (module->module_id == MODULE_ID_RD_SHARED_MEM_EP)) 313 continue; 314 315 audioreach_set_media_format(graph, module, cfg); 316 } 317 } 318 } 319 320 return 0; 321 322 } 323 EXPORT_SYMBOL_GPL(q6apm_graph_media_format_pcm); 324 325 static int q6apm_graph_get_tx_shmem_module_iid(struct q6apm_graph *graph) 326 { 327 struct audioreach_module *module; 328 329 module = q6apm_find_module_by_mid(graph, MODULE_ID_RD_SHARED_MEM_EP); 330 if (!module) 331 return -ENODEV; 332 333 return module->instance_id; 334 335 } 336 337 int q6apm_graph_get_rx_shmem_module_iid(struct q6apm_graph *graph) 338 { 339 struct audioreach_module *module; 340 341 module = q6apm_find_module_by_mid(graph, MODULE_ID_WR_SHARED_MEM_EP); 342 if (!module) 343 return -ENODEV; 344 345 return module->instance_id; 346 347 } 348 EXPORT_SYMBOL_GPL(q6apm_graph_get_rx_shmem_module_iid); 349 350 int q6apm_write_async(struct q6apm_graph *graph, uint32_t len, uint32_t msw_ts, 351 uint32_t lsw_ts, uint32_t wflags) 352 { 353 struct apm_data_cmd_wr_sh_mem_ep_data_buffer_v2 *write_buffer; 354 struct audio_buffer *ab; 355 struct gpr_pkt *pkt; 356 int rc, iid; 357 358 iid = q6apm_graph_get_rx_shmem_module_iid(graph); 359 pkt = audioreach_alloc_pkt(sizeof(*write_buffer), DATA_CMD_WR_SH_MEM_EP_DATA_BUFFER_V2, 360 graph->rx_data.dsp_buf | (len << APM_WRITE_TOKEN_LEN_SHIFT), 361 graph->port->id, iid); 362 if (IS_ERR(pkt)) 363 return PTR_ERR(pkt); 364 365 write_buffer = (void *)pkt + GPR_HDR_SIZE; 366 367 mutex_lock(&graph->lock); 368 ab = &graph->rx_data.buf[graph->rx_data.dsp_buf]; 369 370 write_buffer->buf_addr_lsw = lower_32_bits(ab->phys); 371 write_buffer->buf_addr_msw = upper_32_bits(ab->phys); 372 write_buffer->buf_size = len; 373 write_buffer->timestamp_lsw = lsw_ts; 374 write_buffer->timestamp_msw = msw_ts; 375 write_buffer->mem_map_handle = graph->rx_data.mem_map_handle; 376 write_buffer->flags = wflags; 377 378 graph->rx_data.dsp_buf++; 379 380 if (graph->rx_data.dsp_buf >= graph->rx_data.num_periods) 381 graph->rx_data.dsp_buf = 0; 382 383 mutex_unlock(&graph->lock); 384 385 rc = gpr_send_port_pkt(graph->port, pkt); 386 387 kfree(pkt); 388 389 return rc; 390 } 391 EXPORT_SYMBOL_GPL(q6apm_write_async); 392 393 int q6apm_read(struct q6apm_graph *graph) 394 { 395 struct data_cmd_rd_sh_mem_ep_data_buffer_v2 *read_buffer; 396 struct audioreach_graph_data *port; 397 struct audio_buffer *ab; 398 struct gpr_pkt *pkt; 399 int rc, iid; 400 401 iid = q6apm_graph_get_tx_shmem_module_iid(graph); 402 pkt = audioreach_alloc_pkt(sizeof(*read_buffer), DATA_CMD_RD_SH_MEM_EP_DATA_BUFFER_V2, 403 graph->tx_data.dsp_buf, graph->port->id, iid); 404 if (IS_ERR(pkt)) 405 return PTR_ERR(pkt); 406 407 read_buffer = (void *)pkt + GPR_HDR_SIZE; 408 409 mutex_lock(&graph->lock); 410 port = &graph->tx_data; 411 ab = &port->buf[port->dsp_buf]; 412 413 read_buffer->buf_addr_lsw = lower_32_bits(ab->phys); 414 read_buffer->buf_addr_msw = upper_32_bits(ab->phys); 415 read_buffer->mem_map_handle = port->mem_map_handle; 416 read_buffer->buf_size = ab->size; 417 418 port->dsp_buf++; 419 420 if (port->dsp_buf >= port->num_periods) 421 port->dsp_buf = 0; 422 423 mutex_unlock(&graph->lock); 424 425 rc = gpr_send_port_pkt(graph->port, pkt); 426 kfree(pkt); 427 428 return rc; 429 } 430 EXPORT_SYMBOL_GPL(q6apm_read); 431 432 static int graph_callback(struct gpr_resp_pkt *data, void *priv, int op) 433 { 434 struct data_cmd_rsp_rd_sh_mem_ep_data_buffer_done_v2 *rd_done; 435 struct data_cmd_rsp_wr_sh_mem_ep_data_buffer_done_v2 *done; 436 struct apm_cmd_rsp_shared_mem_map_regions *rsp; 437 struct gpr_ibasic_rsp_result_t *result; 438 struct q6apm_graph *graph = priv; 439 struct gpr_hdr *hdr = &data->hdr; 440 struct device *dev = graph->dev; 441 uint32_t client_event; 442 phys_addr_t phys; 443 int token; 444 445 result = data->payload; 446 447 switch (hdr->opcode) { 448 case DATA_CMD_RSP_WR_SH_MEM_EP_DATA_BUFFER_DONE_V2: 449 client_event = APM_CLIENT_EVENT_DATA_WRITE_DONE; 450 mutex_lock(&graph->lock); 451 token = hdr->token & APM_WRITE_TOKEN_MASK; 452 453 done = data->payload; 454 phys = graph->rx_data.buf[token].phys; 455 mutex_unlock(&graph->lock); 456 457 if (lower_32_bits(phys) == done->buf_addr_lsw && 458 upper_32_bits(phys) == done->buf_addr_msw) { 459 graph->result.opcode = hdr->opcode; 460 graph->result.status = done->status; 461 if (graph->cb) 462 graph->cb(client_event, hdr->token, data->payload, graph->priv); 463 } else { 464 dev_err(dev, "WR BUFF Unexpected addr %08x-%08x\n", done->buf_addr_lsw, 465 done->buf_addr_msw); 466 } 467 468 break; 469 case APM_CMD_RSP_SHARED_MEM_MAP_REGIONS: 470 graph->result.opcode = hdr->opcode; 471 graph->result.status = 0; 472 rsp = data->payload; 473 474 if (hdr->token == SNDRV_PCM_STREAM_PLAYBACK) 475 graph->rx_data.mem_map_handle = rsp->mem_map_handle; 476 else 477 graph->tx_data.mem_map_handle = rsp->mem_map_handle; 478 479 wake_up(&graph->cmd_wait); 480 break; 481 case DATA_CMD_RSP_RD_SH_MEM_EP_DATA_BUFFER_V2: 482 client_event = APM_CLIENT_EVENT_DATA_READ_DONE; 483 mutex_lock(&graph->lock); 484 rd_done = data->payload; 485 phys = graph->tx_data.buf[hdr->token].phys; 486 mutex_unlock(&graph->lock); 487 488 if (upper_32_bits(phys) == rd_done->buf_addr_msw && 489 lower_32_bits(phys) == rd_done->buf_addr_lsw) { 490 graph->result.opcode = hdr->opcode; 491 graph->result.status = rd_done->status; 492 if (graph->cb) 493 graph->cb(client_event, hdr->token, data->payload, graph->priv); 494 } else { 495 dev_err(dev, "RD BUFF Unexpected addr %08x-%08x\n", rd_done->buf_addr_lsw, 496 rd_done->buf_addr_msw); 497 } 498 break; 499 case DATA_CMD_WR_SH_MEM_EP_EOS_RENDERED: 500 break; 501 case GPR_BASIC_RSP_RESULT: 502 switch (result->opcode) { 503 case APM_CMD_SHARED_MEM_UNMAP_REGIONS: 504 graph->result.opcode = result->opcode; 505 graph->result.status = 0; 506 if (hdr->token == SNDRV_PCM_STREAM_PLAYBACK) 507 graph->rx_data.mem_map_handle = 0; 508 else 509 graph->tx_data.mem_map_handle = 0; 510 511 wake_up(&graph->cmd_wait); 512 break; 513 case APM_CMD_SHARED_MEM_MAP_REGIONS: 514 case DATA_CMD_WR_SH_MEM_EP_MEDIA_FORMAT: 515 case APM_CMD_SET_CFG: 516 graph->result.opcode = result->opcode; 517 graph->result.status = result->status; 518 if (result->status) 519 dev_err(dev, "Error (%d) Processing 0x%08x cmd\n", 520 result->status, result->opcode); 521 wake_up(&graph->cmd_wait); 522 break; 523 default: 524 break; 525 } 526 break; 527 default: 528 break; 529 } 530 return 0; 531 } 532 533 struct q6apm_graph *q6apm_graph_open(struct device *dev, q6apm_cb cb, 534 void *priv, int graph_id) 535 { 536 struct q6apm *apm = dev_get_drvdata(dev->parent); 537 struct audioreach_graph *ar_graph; 538 struct q6apm_graph *graph; 539 int ret; 540 541 ar_graph = q6apm_get_audioreach_graph(apm, graph_id); 542 if (IS_ERR(ar_graph)) { 543 dev_err(dev, "No graph found with id %d\n", graph_id); 544 return ERR_CAST(ar_graph); 545 } 546 547 graph = kzalloc(sizeof(*graph), GFP_KERNEL); 548 if (!graph) { 549 ret = -ENOMEM; 550 goto put_ar_graph; 551 } 552 553 graph->apm = apm; 554 graph->priv = priv; 555 graph->cb = cb; 556 graph->info = ar_graph->info; 557 graph->ar_graph = ar_graph; 558 graph->id = ar_graph->id; 559 graph->dev = dev; 560 561 mutex_init(&graph->lock); 562 init_waitqueue_head(&graph->cmd_wait); 563 564 graph->port = gpr_alloc_port(apm->gdev, dev, graph_callback, graph); 565 if (IS_ERR(graph->port)) { 566 ret = PTR_ERR(graph->port); 567 goto free_graph; 568 } 569 570 return graph; 571 572 free_graph: 573 kfree(graph); 574 put_ar_graph: 575 kref_put(&ar_graph->refcount, q6apm_put_audioreach_graph); 576 return ERR_PTR(ret); 577 } 578 EXPORT_SYMBOL_GPL(q6apm_graph_open); 579 580 int q6apm_graph_close(struct q6apm_graph *graph) 581 { 582 struct audioreach_graph *ar_graph = graph->ar_graph; 583 584 gpr_free_port(graph->port); 585 kref_put(&ar_graph->refcount, q6apm_put_audioreach_graph); 586 kfree(graph); 587 588 return 0; 589 } 590 EXPORT_SYMBOL_GPL(q6apm_graph_close); 591 592 int q6apm_graph_prepare(struct q6apm_graph *graph) 593 { 594 return audioreach_graph_mgmt_cmd(graph->ar_graph, APM_CMD_GRAPH_PREPARE); 595 } 596 EXPORT_SYMBOL_GPL(q6apm_graph_prepare); 597 598 int q6apm_graph_start(struct q6apm_graph *graph) 599 { 600 struct audioreach_graph *ar_graph = graph->ar_graph; 601 int ret = 0; 602 603 if (ar_graph->start_count == 0) 604 ret = audioreach_graph_mgmt_cmd(ar_graph, APM_CMD_GRAPH_START); 605 606 ar_graph->start_count++; 607 608 return ret; 609 } 610 EXPORT_SYMBOL_GPL(q6apm_graph_start); 611 612 int q6apm_graph_stop(struct q6apm_graph *graph) 613 { 614 struct audioreach_graph *ar_graph = graph->ar_graph; 615 616 if (--ar_graph->start_count > 0) 617 return 0; 618 619 return audioreach_graph_mgmt_cmd(ar_graph, APM_CMD_GRAPH_STOP); 620 } 621 EXPORT_SYMBOL_GPL(q6apm_graph_stop); 622 623 int q6apm_graph_flush(struct q6apm_graph *graph) 624 { 625 return audioreach_graph_mgmt_cmd(graph->ar_graph, APM_CMD_GRAPH_FLUSH); 626 } 627 EXPORT_SYMBOL_GPL(q6apm_graph_flush); 628 629 static int q6apm_audio_probe(struct snd_soc_component *component) 630 { 631 return audioreach_tplg_init(component); 632 } 633 634 static void q6apm_audio_remove(struct snd_soc_component *component) 635 { 636 /* remove topology */ 637 snd_soc_tplg_component_remove(component); 638 } 639 640 #define APM_AUDIO_DRV_NAME "q6apm-audio" 641 642 static const struct snd_soc_component_driver q6apm_audio_component = { 643 .name = APM_AUDIO_DRV_NAME, 644 .probe = q6apm_audio_probe, 645 .remove = q6apm_audio_remove, 646 }; 647 648 static int apm_probe(gpr_device_t *gdev) 649 { 650 struct device *dev = &gdev->dev; 651 struct q6apm *apm; 652 int ret; 653 654 apm = devm_kzalloc(dev, sizeof(*apm), GFP_KERNEL); 655 if (!apm) 656 return -ENOMEM; 657 658 dev_set_drvdata(dev, apm); 659 660 mutex_init(&apm->lock); 661 apm->dev = dev; 662 apm->gdev = gdev; 663 init_waitqueue_head(&apm->wait); 664 665 INIT_LIST_HEAD(&apm->widget_list); 666 idr_init(&apm->graph_idr); 667 idr_init(&apm->graph_info_idr); 668 idr_init(&apm->sub_graphs_idr); 669 idr_init(&apm->containers_idr); 670 671 idr_init(&apm->modules_idr); 672 673 g_apm = apm; 674 675 q6apm_get_apm_state(apm); 676 677 ret = devm_snd_soc_register_component(dev, &q6apm_audio_component, NULL, 0); 678 if (ret < 0) { 679 dev_err(dev, "failed to get register q6apm: %d\n", ret); 680 return ret; 681 } 682 683 return of_platform_populate(dev->of_node, NULL, NULL, dev); 684 } 685 686 struct audioreach_module *q6apm_find_module_by_mid(struct q6apm_graph *graph, uint32_t mid) 687 { 688 struct audioreach_graph_info *info = graph->info; 689 struct q6apm *apm = graph->apm; 690 691 return __q6apm_find_module_by_mid(apm, info, mid); 692 693 } 694 695 static int apm_callback(struct gpr_resp_pkt *data, void *priv, int op) 696 { 697 gpr_device_t *gdev = priv; 698 struct q6apm *apm = dev_get_drvdata(&gdev->dev); 699 struct device *dev = &gdev->dev; 700 struct gpr_ibasic_rsp_result_t *result; 701 struct gpr_hdr *hdr = &data->hdr; 702 703 result = data->payload; 704 705 switch (hdr->opcode) { 706 case APM_CMD_RSP_GET_SPF_STATE: 707 apm->result.opcode = hdr->opcode; 708 apm->result.status = 0; 709 /* First word of result it state */ 710 apm->state = result->opcode; 711 wake_up(&apm->wait); 712 break; 713 case GPR_BASIC_RSP_RESULT: 714 switch (result->opcode) { 715 case APM_CMD_GRAPH_START: 716 case APM_CMD_GRAPH_OPEN: 717 case APM_CMD_GRAPH_PREPARE: 718 case APM_CMD_GRAPH_CLOSE: 719 case APM_CMD_GRAPH_FLUSH: 720 case APM_CMD_GRAPH_STOP: 721 case APM_CMD_SET_CFG: 722 apm->result.opcode = result->opcode; 723 apm->result.status = result->status; 724 if (result->status) 725 dev_err(dev, "Error (%d) Processing 0x%08x cmd\n", result->status, 726 result->opcode); 727 wake_up(&apm->wait); 728 break; 729 default: 730 break; 731 } 732 break; 733 default: 734 break; 735 } 736 737 return 0; 738 } 739 740 #ifdef CONFIG_OF 741 static const struct of_device_id apm_device_id[] = { 742 { .compatible = "qcom,q6apm" }, 743 {}, 744 }; 745 MODULE_DEVICE_TABLE(of, apm_device_id); 746 #endif 747 748 static gpr_driver_t apm_driver = { 749 .probe = apm_probe, 750 .gpr_callback = apm_callback, 751 .driver = { 752 .name = "qcom-apm", 753 .of_match_table = of_match_ptr(apm_device_id), 754 }, 755 }; 756 757 module_gpr_driver(apm_driver); 758 MODULE_DESCRIPTION("Audio Process Manager"); 759 MODULE_LICENSE("GPL"); 760