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 static 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_remove_initial_silence(struct device *dev, struct q6apm_graph *graph, uint32_t samples) 302 { 303 struct audioreach_module *module; 304 305 module = q6apm_find_module_by_mid(graph, MODULE_ID_PLACEHOLDER_DECODER); 306 if (!module) 307 return -ENODEV; 308 309 return audioreach_send_u32_param(graph, module, PARAM_ID_REMOVE_INITIAL_SILENCE, samples); 310 } 311 EXPORT_SYMBOL_GPL(q6apm_remove_initial_silence); 312 313 int q6apm_remove_trailing_silence(struct device *dev, struct q6apm_graph *graph, uint32_t samples) 314 { 315 struct audioreach_module *module; 316 317 module = q6apm_find_module_by_mid(graph, MODULE_ID_PLACEHOLDER_DECODER); 318 if (!module) 319 return -ENODEV; 320 321 return audioreach_send_u32_param(graph, module, PARAM_ID_REMOVE_TRAILING_SILENCE, samples); 322 } 323 EXPORT_SYMBOL_GPL(q6apm_remove_trailing_silence); 324 325 int q6apm_enable_compress_module(struct device *dev, struct q6apm_graph *graph, bool en) 326 { 327 struct audioreach_module *module; 328 329 module = q6apm_find_module_by_mid(graph, MODULE_ID_PLACEHOLDER_DECODER); 330 if (!module) 331 return -ENODEV; 332 333 return audioreach_send_u32_param(graph, module, PARAM_ID_MODULE_ENABLE, en); 334 } 335 EXPORT_SYMBOL_GPL(q6apm_enable_compress_module); 336 337 int q6apm_set_real_module_id(struct device *dev, struct q6apm_graph *graph, 338 uint32_t codec_id) 339 { 340 struct audioreach_module *module; 341 uint32_t module_id; 342 343 module = q6apm_find_module_by_mid(graph, MODULE_ID_PLACEHOLDER_DECODER); 344 if (!module) 345 return -ENODEV; 346 347 switch (codec_id) { 348 case SND_AUDIOCODEC_MP3: 349 module_id = MODULE_ID_MP3_DECODE; 350 break; 351 case SND_AUDIOCODEC_AAC: 352 module_id = MODULE_ID_AAC_DEC; 353 break; 354 case SND_AUDIOCODEC_FLAC: 355 module_id = MODULE_ID_FLAC_DEC; 356 break; 357 default: 358 return -EINVAL; 359 } 360 361 return audioreach_send_u32_param(graph, module, PARAM_ID_REAL_MODULE_ID, 362 module_id); 363 } 364 EXPORT_SYMBOL_GPL(q6apm_set_real_module_id); 365 366 int q6apm_graph_media_format_pcm(struct q6apm_graph *graph, struct audioreach_module_config *cfg) 367 { 368 struct audioreach_graph_info *info = graph->info; 369 struct audioreach_sub_graph *sgs; 370 struct audioreach_container *container; 371 struct audioreach_module *module; 372 373 list_for_each_entry(sgs, &info->sg_list, node) { 374 list_for_each_entry(container, &sgs->container_list, node) { 375 list_for_each_entry(module, &container->modules_list, node) { 376 if ((module->module_id == MODULE_ID_WR_SHARED_MEM_EP) || 377 (module->module_id == MODULE_ID_RD_SHARED_MEM_EP)) 378 continue; 379 380 audioreach_set_media_format(graph, module, cfg); 381 } 382 } 383 } 384 385 return 0; 386 387 } 388 EXPORT_SYMBOL_GPL(q6apm_graph_media_format_pcm); 389 390 static int q6apm_graph_get_tx_shmem_module_iid(struct q6apm_graph *graph) 391 { 392 struct audioreach_module *module; 393 394 module = q6apm_find_module_by_mid(graph, MODULE_ID_RD_SHARED_MEM_EP); 395 if (!module) 396 return -ENODEV; 397 398 return module->instance_id; 399 400 } 401 402 int q6apm_graph_get_rx_shmem_module_iid(struct q6apm_graph *graph) 403 { 404 struct audioreach_module *module; 405 406 module = q6apm_find_module_by_mid(graph, MODULE_ID_WR_SHARED_MEM_EP); 407 if (!module) 408 return -ENODEV; 409 410 return module->instance_id; 411 412 } 413 EXPORT_SYMBOL_GPL(q6apm_graph_get_rx_shmem_module_iid); 414 415 int q6apm_write_async(struct q6apm_graph *graph, uint32_t len, uint32_t msw_ts, 416 uint32_t lsw_ts, uint32_t wflags) 417 { 418 struct apm_data_cmd_wr_sh_mem_ep_data_buffer_v2 *write_buffer; 419 struct audio_buffer *ab; 420 struct gpr_pkt *pkt; 421 int rc, iid; 422 423 iid = q6apm_graph_get_rx_shmem_module_iid(graph); 424 pkt = audioreach_alloc_pkt(sizeof(*write_buffer), DATA_CMD_WR_SH_MEM_EP_DATA_BUFFER_V2, 425 graph->rx_data.dsp_buf | (len << APM_WRITE_TOKEN_LEN_SHIFT), 426 graph->port->id, iid); 427 if (IS_ERR(pkt)) 428 return PTR_ERR(pkt); 429 430 write_buffer = (void *)pkt + GPR_HDR_SIZE; 431 432 mutex_lock(&graph->lock); 433 ab = &graph->rx_data.buf[graph->rx_data.dsp_buf]; 434 435 write_buffer->buf_addr_lsw = lower_32_bits(ab->phys); 436 write_buffer->buf_addr_msw = upper_32_bits(ab->phys); 437 write_buffer->buf_size = len; 438 write_buffer->timestamp_lsw = lsw_ts; 439 write_buffer->timestamp_msw = msw_ts; 440 write_buffer->mem_map_handle = graph->rx_data.mem_map_handle; 441 write_buffer->flags = wflags; 442 443 graph->rx_data.dsp_buf++; 444 445 if (graph->rx_data.dsp_buf >= graph->rx_data.num_periods) 446 graph->rx_data.dsp_buf = 0; 447 448 mutex_unlock(&graph->lock); 449 450 rc = gpr_send_port_pkt(graph->port, pkt); 451 452 kfree(pkt); 453 454 return rc; 455 } 456 EXPORT_SYMBOL_GPL(q6apm_write_async); 457 458 int q6apm_read(struct q6apm_graph *graph) 459 { 460 struct data_cmd_rd_sh_mem_ep_data_buffer_v2 *read_buffer; 461 struct audioreach_graph_data *port; 462 struct audio_buffer *ab; 463 struct gpr_pkt *pkt; 464 int rc, iid; 465 466 iid = q6apm_graph_get_tx_shmem_module_iid(graph); 467 pkt = audioreach_alloc_pkt(sizeof(*read_buffer), DATA_CMD_RD_SH_MEM_EP_DATA_BUFFER_V2, 468 graph->tx_data.dsp_buf, graph->port->id, iid); 469 if (IS_ERR(pkt)) 470 return PTR_ERR(pkt); 471 472 read_buffer = (void *)pkt + GPR_HDR_SIZE; 473 474 mutex_lock(&graph->lock); 475 port = &graph->tx_data; 476 ab = &port->buf[port->dsp_buf]; 477 478 read_buffer->buf_addr_lsw = lower_32_bits(ab->phys); 479 read_buffer->buf_addr_msw = upper_32_bits(ab->phys); 480 read_buffer->mem_map_handle = port->mem_map_handle; 481 read_buffer->buf_size = ab->size; 482 483 port->dsp_buf++; 484 485 if (port->dsp_buf >= port->num_periods) 486 port->dsp_buf = 0; 487 488 mutex_unlock(&graph->lock); 489 490 rc = gpr_send_port_pkt(graph->port, pkt); 491 kfree(pkt); 492 493 return rc; 494 } 495 EXPORT_SYMBOL_GPL(q6apm_read); 496 497 static int graph_callback(struct gpr_resp_pkt *data, void *priv, int op) 498 { 499 struct data_cmd_rsp_rd_sh_mem_ep_data_buffer_done_v2 *rd_done; 500 struct data_cmd_rsp_wr_sh_mem_ep_data_buffer_done_v2 *done; 501 struct apm_cmd_rsp_shared_mem_map_regions *rsp; 502 struct gpr_ibasic_rsp_result_t *result; 503 struct q6apm_graph *graph = priv; 504 struct gpr_hdr *hdr = &data->hdr; 505 struct device *dev = graph->dev; 506 uint32_t client_event; 507 phys_addr_t phys; 508 int token; 509 510 result = data->payload; 511 512 switch (hdr->opcode) { 513 case DATA_CMD_RSP_WR_SH_MEM_EP_DATA_BUFFER_DONE_V2: 514 if (!graph->ar_graph) 515 break; 516 client_event = APM_CLIENT_EVENT_DATA_WRITE_DONE; 517 mutex_lock(&graph->lock); 518 token = hdr->token & APM_WRITE_TOKEN_MASK; 519 520 done = data->payload; 521 phys = graph->rx_data.buf[token].phys; 522 mutex_unlock(&graph->lock); 523 524 if (lower_32_bits(phys) == done->buf_addr_lsw && 525 upper_32_bits(phys) == done->buf_addr_msw) { 526 graph->result.opcode = hdr->opcode; 527 graph->result.status = done->status; 528 if (graph->cb) 529 graph->cb(client_event, hdr->token, data->payload, graph->priv); 530 } else { 531 dev_err(dev, "WR BUFF Unexpected addr %08x-%08x\n", done->buf_addr_lsw, 532 done->buf_addr_msw); 533 } 534 535 break; 536 case APM_CMD_RSP_SHARED_MEM_MAP_REGIONS: 537 graph->result.opcode = hdr->opcode; 538 graph->result.status = 0; 539 rsp = data->payload; 540 541 if (hdr->token == SNDRV_PCM_STREAM_PLAYBACK) 542 graph->rx_data.mem_map_handle = rsp->mem_map_handle; 543 else 544 graph->tx_data.mem_map_handle = rsp->mem_map_handle; 545 546 wake_up(&graph->cmd_wait); 547 break; 548 case DATA_CMD_RSP_RD_SH_MEM_EP_DATA_BUFFER_V2: 549 if (!graph->ar_graph) 550 break; 551 client_event = APM_CLIENT_EVENT_DATA_READ_DONE; 552 mutex_lock(&graph->lock); 553 rd_done = data->payload; 554 phys = graph->tx_data.buf[hdr->token].phys; 555 mutex_unlock(&graph->lock); 556 557 if (upper_32_bits(phys) == rd_done->buf_addr_msw && 558 lower_32_bits(phys) == rd_done->buf_addr_lsw) { 559 graph->result.opcode = hdr->opcode; 560 graph->result.status = rd_done->status; 561 if (graph->cb) 562 graph->cb(client_event, hdr->token, data->payload, graph->priv); 563 } else { 564 dev_err(dev, "RD BUFF Unexpected addr %08x-%08x\n", rd_done->buf_addr_lsw, 565 rd_done->buf_addr_msw); 566 } 567 break; 568 case DATA_CMD_WR_SH_MEM_EP_EOS_RENDERED: 569 client_event = APM_CLIENT_EVENT_CMD_EOS_DONE; 570 if (graph->cb) 571 graph->cb(client_event, hdr->token, data->payload, graph->priv); 572 break; 573 case GPR_BASIC_RSP_RESULT: 574 switch (result->opcode) { 575 case APM_CMD_SHARED_MEM_UNMAP_REGIONS: 576 graph->result.opcode = result->opcode; 577 graph->result.status = 0; 578 if (hdr->token == SNDRV_PCM_STREAM_PLAYBACK) 579 graph->rx_data.mem_map_handle = 0; 580 else 581 graph->tx_data.mem_map_handle = 0; 582 583 wake_up(&graph->cmd_wait); 584 break; 585 case APM_CMD_SHARED_MEM_MAP_REGIONS: 586 case DATA_CMD_WR_SH_MEM_EP_MEDIA_FORMAT: 587 case APM_CMD_SET_CFG: 588 graph->result.opcode = result->opcode; 589 graph->result.status = result->status; 590 if (result->status) 591 dev_err(dev, "Error (%d) Processing 0x%08x cmd\n", 592 result->status, result->opcode); 593 wake_up(&graph->cmd_wait); 594 break; 595 default: 596 break; 597 } 598 break; 599 default: 600 break; 601 } 602 return 0; 603 } 604 605 struct q6apm_graph *q6apm_graph_open(struct device *dev, q6apm_cb cb, 606 void *priv, int graph_id) 607 { 608 struct q6apm *apm = dev_get_drvdata(dev->parent); 609 struct audioreach_graph *ar_graph; 610 struct q6apm_graph *graph; 611 int ret; 612 613 ar_graph = q6apm_get_audioreach_graph(apm, graph_id); 614 if (IS_ERR(ar_graph)) { 615 dev_err(dev, "No graph found with id %d\n", graph_id); 616 return ERR_CAST(ar_graph); 617 } 618 619 graph = kzalloc(sizeof(*graph), GFP_KERNEL); 620 if (!graph) { 621 ret = -ENOMEM; 622 goto put_ar_graph; 623 } 624 625 graph->apm = apm; 626 graph->priv = priv; 627 graph->cb = cb; 628 graph->info = ar_graph->info; 629 graph->ar_graph = ar_graph; 630 graph->id = ar_graph->id; 631 graph->dev = dev; 632 633 mutex_init(&graph->lock); 634 init_waitqueue_head(&graph->cmd_wait); 635 636 graph->port = gpr_alloc_port(apm->gdev, dev, graph_callback, graph); 637 if (IS_ERR(graph->port)) { 638 ret = PTR_ERR(graph->port); 639 goto free_graph; 640 } 641 642 return graph; 643 644 free_graph: 645 kfree(graph); 646 put_ar_graph: 647 kref_put(&ar_graph->refcount, q6apm_put_audioreach_graph); 648 return ERR_PTR(ret); 649 } 650 EXPORT_SYMBOL_GPL(q6apm_graph_open); 651 652 int q6apm_graph_close(struct q6apm_graph *graph) 653 { 654 struct audioreach_graph *ar_graph = graph->ar_graph; 655 656 graph->ar_graph = NULL; 657 kref_put(&ar_graph->refcount, q6apm_put_audioreach_graph); 658 gpr_free_port(graph->port); 659 kfree(graph); 660 661 return 0; 662 } 663 EXPORT_SYMBOL_GPL(q6apm_graph_close); 664 665 int q6apm_graph_prepare(struct q6apm_graph *graph) 666 { 667 return audioreach_graph_mgmt_cmd(graph->ar_graph, APM_CMD_GRAPH_PREPARE); 668 } 669 EXPORT_SYMBOL_GPL(q6apm_graph_prepare); 670 671 int q6apm_graph_start(struct q6apm_graph *graph) 672 { 673 struct audioreach_graph *ar_graph = graph->ar_graph; 674 int ret = 0; 675 676 if (ar_graph->start_count == 0) 677 ret = audioreach_graph_mgmt_cmd(ar_graph, APM_CMD_GRAPH_START); 678 679 ar_graph->start_count++; 680 681 return ret; 682 } 683 EXPORT_SYMBOL_GPL(q6apm_graph_start); 684 685 int q6apm_graph_stop(struct q6apm_graph *graph) 686 { 687 struct audioreach_graph *ar_graph = graph->ar_graph; 688 689 if (--ar_graph->start_count > 0) 690 return 0; 691 692 return audioreach_graph_mgmt_cmd(ar_graph, APM_CMD_GRAPH_STOP); 693 } 694 EXPORT_SYMBOL_GPL(q6apm_graph_stop); 695 696 int q6apm_graph_flush(struct q6apm_graph *graph) 697 { 698 return audioreach_graph_mgmt_cmd(graph->ar_graph, APM_CMD_GRAPH_FLUSH); 699 } 700 EXPORT_SYMBOL_GPL(q6apm_graph_flush); 701 702 static int q6apm_audio_probe(struct snd_soc_component *component) 703 { 704 return audioreach_tplg_init(component); 705 } 706 707 static void q6apm_audio_remove(struct snd_soc_component *component) 708 { 709 /* remove topology */ 710 snd_soc_tplg_component_remove(component); 711 } 712 713 #define APM_AUDIO_DRV_NAME "q6apm-audio" 714 715 static const struct snd_soc_component_driver q6apm_audio_component = { 716 .name = APM_AUDIO_DRV_NAME, 717 .probe = q6apm_audio_probe, 718 .remove = q6apm_audio_remove, 719 }; 720 721 static int apm_probe(gpr_device_t *gdev) 722 { 723 struct device *dev = &gdev->dev; 724 struct q6apm *apm; 725 int ret; 726 727 apm = devm_kzalloc(dev, sizeof(*apm), GFP_KERNEL); 728 if (!apm) 729 return -ENOMEM; 730 731 dev_set_drvdata(dev, apm); 732 733 mutex_init(&apm->lock); 734 apm->dev = dev; 735 apm->gdev = gdev; 736 init_waitqueue_head(&apm->wait); 737 738 INIT_LIST_HEAD(&apm->widget_list); 739 idr_init(&apm->graph_idr); 740 idr_init(&apm->graph_info_idr); 741 idr_init(&apm->sub_graphs_idr); 742 idr_init(&apm->containers_idr); 743 744 idr_init(&apm->modules_idr); 745 746 g_apm = apm; 747 748 q6apm_get_apm_state(apm); 749 750 ret = devm_snd_soc_register_component(dev, &q6apm_audio_component, NULL, 0); 751 if (ret < 0) { 752 dev_err(dev, "failed to register q6apm: %d\n", ret); 753 return ret; 754 } 755 756 return of_platform_populate(dev->of_node, NULL, NULL, dev); 757 } 758 759 struct audioreach_module *q6apm_find_module_by_mid(struct q6apm_graph *graph, uint32_t mid) 760 { 761 struct audioreach_graph_info *info = graph->info; 762 struct q6apm *apm = graph->apm; 763 764 return __q6apm_find_module_by_mid(apm, info, mid); 765 766 } 767 768 static int apm_callback(struct gpr_resp_pkt *data, void *priv, int op) 769 { 770 gpr_device_t *gdev = priv; 771 struct q6apm *apm = dev_get_drvdata(&gdev->dev); 772 struct device *dev = &gdev->dev; 773 struct gpr_ibasic_rsp_result_t *result; 774 struct gpr_hdr *hdr = &data->hdr; 775 776 result = data->payload; 777 778 switch (hdr->opcode) { 779 case APM_CMD_RSP_GET_SPF_STATE: 780 apm->result.opcode = hdr->opcode; 781 apm->result.status = 0; 782 /* First word of result it state */ 783 apm->state = result->opcode; 784 wake_up(&apm->wait); 785 break; 786 case GPR_BASIC_RSP_RESULT: 787 switch (result->opcode) { 788 case APM_CMD_GRAPH_START: 789 case APM_CMD_GRAPH_OPEN: 790 case APM_CMD_GRAPH_PREPARE: 791 case APM_CMD_GRAPH_CLOSE: 792 case APM_CMD_GRAPH_FLUSH: 793 case APM_CMD_GRAPH_STOP: 794 case APM_CMD_SET_CFG: 795 apm->result.opcode = result->opcode; 796 apm->result.status = result->status; 797 if (result->status) 798 dev_err(dev, "Error (%d) Processing 0x%08x cmd\n", result->status, 799 result->opcode); 800 wake_up(&apm->wait); 801 break; 802 default: 803 break; 804 } 805 break; 806 default: 807 break; 808 } 809 810 return 0; 811 } 812 813 #ifdef CONFIG_OF 814 static const struct of_device_id apm_device_id[] = { 815 { .compatible = "qcom,q6apm" }, 816 {}, 817 }; 818 MODULE_DEVICE_TABLE(of, apm_device_id); 819 #endif 820 821 static gpr_driver_t apm_driver = { 822 .probe = apm_probe, 823 .gpr_callback = apm_callback, 824 .driver = { 825 .name = "qcom-apm", 826 .of_match_table = of_match_ptr(apm_device_id), 827 }, 828 }; 829 830 module_gpr_driver(apm_driver); 831 MODULE_DESCRIPTION("Audio Process Manager"); 832 MODULE_LICENSE("GPL"); 833