1 // SPDX-License-Identifier: BSD-3-Clause-Clear 2 /* 3 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. 4 * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. 5 */ 6 7 #include <linux/export.h> 8 #include <linux/module.h> 9 #include <linux/slab.h> 10 #include <linux/remoteproc.h> 11 #include <linux/firmware.h> 12 #include <linux/of.h> 13 #include <linux/of_graph.h> 14 #include "ahb.h" 15 #include "core.h" 16 #include "dp_tx.h" 17 #include "dp_rx.h" 18 #include "debug.h" 19 #include "debugfs.h" 20 #include "fw.h" 21 #include "hif.h" 22 #include "pci.h" 23 #include "wow.h" 24 #include "dp_cmn.h" 25 #include "peer.h" 26 27 unsigned int ath12k_debug_mask; 28 module_param_named(debug_mask, ath12k_debug_mask, uint, 0644); 29 MODULE_PARM_DESC(debug_mask, "Debugging mask"); 30 EXPORT_SYMBOL(ath12k_debug_mask); 31 32 bool ath12k_ftm_mode; 33 module_param_named(ftm_mode, ath12k_ftm_mode, bool, 0444); 34 MODULE_PARM_DESC(ftm_mode, "Boots up in factory test mode"); 35 EXPORT_SYMBOL(ath12k_ftm_mode); 36 37 /* protected with ath12k_hw_group_mutex */ 38 static struct list_head ath12k_hw_group_list = LIST_HEAD_INIT(ath12k_hw_group_list); 39 40 static DEFINE_MUTEX(ath12k_hw_group_mutex); 41 42 static const struct 43 ath12k_mem_profile_based_param ath12k_mem_profile_based_param[] = { 44 [ATH12K_QMI_MEMORY_MODE_DEFAULT] = { 45 .num_vdevs = 17, 46 .max_client_single = 512, 47 .max_client_dbs = 128, 48 .max_client_dbs_sbs = 128, 49 .dp_params = { 50 .tx_comp_ring_size = 32768, 51 .rxdma_monitor_buf_ring_size = 4096, 52 .rxdma_monitor_dst_ring_size = 8092, 53 .num_pool_tx_desc = 32768, 54 .rx_desc_count = 12288, 55 }, 56 }, 57 [ATH12K_QMI_MEMORY_MODE_LOW_512_M] = { 58 .num_vdevs = 9, 59 .max_client_single = 128, 60 .max_client_dbs = 64, 61 .max_client_dbs_sbs = 64, 62 .dp_params = { 63 .tx_comp_ring_size = 16384, 64 .rxdma_monitor_buf_ring_size = 256, 65 .rxdma_monitor_dst_ring_size = 512, 66 .num_pool_tx_desc = 16384, 67 .rx_desc_count = 6144, 68 }, 69 }, 70 }; 71 72 static int ath12k_core_rfkill_config(struct ath12k_base *ab) 73 { 74 struct ath12k *ar; 75 int ret = 0, i; 76 77 if (!(ab->target_caps.sys_cap_info & WMI_SYS_CAP_INFO_RFKILL)) 78 return 0; 79 80 if (ath12k_acpi_get_disable_rfkill(ab)) 81 return 0; 82 83 for (i = 0; i < ab->num_radios; i++) { 84 ar = ab->pdevs[i].ar; 85 86 ret = ath12k_mac_rfkill_config(ar); 87 if (ret && ret != -EOPNOTSUPP) { 88 ath12k_warn(ab, "failed to configure rfkill: %d", ret); 89 return ret; 90 } 91 } 92 93 return ret; 94 } 95 96 /* Check if we need to continue with suspend/resume operation. 97 * Return: 98 * a negative value: error happens and don't continue. 99 * 0: no error but don't continue. 100 * positive value: no error and do continue. 101 */ 102 static int ath12k_core_continue_suspend_resume(struct ath12k_base *ab) 103 { 104 struct ath12k *ar; 105 106 if (!ab->hw_params->supports_suspend) 107 return -EOPNOTSUPP; 108 109 /* so far single_pdev_only chips have supports_suspend as true 110 * so pass 0 as a dummy pdev_id here. 111 */ 112 ar = ab->pdevs[0].ar; 113 if (!ar || !ar->ah || ar->ah->state != ATH12K_HW_STATE_OFF) 114 return 0; 115 116 return 1; 117 } 118 119 int ath12k_core_suspend(struct ath12k_base *ab) 120 { 121 struct ath12k *ar; 122 int ret, i; 123 124 ret = ath12k_core_continue_suspend_resume(ab); 125 if (ret <= 0) 126 return ret; 127 128 for (i = 0; i < ab->num_radios; i++) { 129 ar = ab->pdevs[i].ar; 130 if (!ar) 131 continue; 132 133 wiphy_lock(ath12k_ar_to_hw(ar)->wiphy); 134 135 ret = ath12k_mac_wait_tx_complete(ar); 136 if (ret) { 137 wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy); 138 ath12k_warn(ab, "failed to wait tx complete: %d\n", ret); 139 return ret; 140 } 141 142 wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy); 143 } 144 145 /* PM framework skips suspend_late/resume_early callbacks 146 * if other devices report errors in their suspend callbacks. 147 * However ath12k_core_resume() would still be called because 148 * here we return success thus kernel put us on dpm_suspended_list. 149 * Since we won't go through a power down/up cycle, there is 150 * no chance to call complete(&ab->restart_completed) in 151 * ath12k_core_restart(), making ath12k_core_resume() timeout. 152 * So call it here to avoid this issue. This also works in case 153 * no error happens thus suspend_late/resume_early get called, 154 * because it will be reinitialized in ath12k_core_resume_early(). 155 */ 156 complete(&ab->restart_completed); 157 158 return 0; 159 } 160 EXPORT_SYMBOL(ath12k_core_suspend); 161 162 int ath12k_core_suspend_late(struct ath12k_base *ab) 163 { 164 int ret; 165 166 ret = ath12k_core_continue_suspend_resume(ab); 167 if (ret <= 0) 168 return ret; 169 170 ath12k_acpi_stop(ab); 171 172 ath12k_hif_irq_disable(ab); 173 ath12k_hif_ce_irq_disable(ab); 174 175 ath12k_hif_power_down(ab, true); 176 177 return 0; 178 } 179 EXPORT_SYMBOL(ath12k_core_suspend_late); 180 181 int ath12k_core_resume_early(struct ath12k_base *ab) 182 { 183 int ret; 184 185 ret = ath12k_core_continue_suspend_resume(ab); 186 if (ret <= 0) 187 return ret; 188 189 reinit_completion(&ab->restart_completed); 190 ret = ath12k_hif_power_up(ab); 191 if (ret) 192 ath12k_warn(ab, "failed to power up hif during resume: %d\n", ret); 193 194 return ret; 195 } 196 EXPORT_SYMBOL(ath12k_core_resume_early); 197 198 int ath12k_core_resume(struct ath12k_base *ab) 199 { 200 long time_left; 201 int ret; 202 203 ret = ath12k_core_continue_suspend_resume(ab); 204 if (ret <= 0) 205 return ret; 206 207 time_left = wait_for_completion_timeout(&ab->restart_completed, 208 ATH12K_RESET_TIMEOUT_HZ); 209 if (time_left == 0) { 210 ath12k_warn(ab, "timeout while waiting for restart complete"); 211 return -ETIMEDOUT; 212 } 213 214 return 0; 215 } 216 EXPORT_SYMBOL(ath12k_core_resume); 217 218 static int __ath12k_core_create_board_name(struct ath12k_base *ab, char *name, 219 size_t name_len, bool with_variant, 220 bool bus_type_mode, bool with_default) 221 { 222 /* strlen(',variant=') + strlen(ab->qmi.target.bdf_ext) */ 223 char variant[9 + ATH12K_QMI_BDF_EXT_STR_LENGTH] = {}; 224 225 if (with_variant && ab->qmi.target.bdf_ext[0] != '\0') 226 scnprintf(variant, sizeof(variant), ",variant=%s", 227 ab->qmi.target.bdf_ext); 228 229 switch (ab->id.bdf_search) { 230 case ATH12K_BDF_SEARCH_BUS_AND_BOARD: 231 if (bus_type_mode) 232 scnprintf(name, name_len, 233 "bus=%s", 234 ath12k_bus_str(ab->hif.bus)); 235 else 236 scnprintf(name, name_len, 237 "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x,qmi-chip-id=%d,qmi-board-id=%d%s", 238 ath12k_bus_str(ab->hif.bus), 239 ab->id.vendor, ab->id.device, 240 ab->id.subsystem_vendor, 241 ab->id.subsystem_device, 242 ab->qmi.target.chip_id, 243 ab->qmi.target.board_id, 244 variant); 245 break; 246 default: 247 scnprintf(name, name_len, 248 "bus=%s,qmi-chip-id=%d,qmi-board-id=%d%s", 249 ath12k_bus_str(ab->hif.bus), 250 ab->qmi.target.chip_id, 251 with_default ? 252 ATH12K_BOARD_ID_DEFAULT : ab->qmi.target.board_id, 253 variant); 254 break; 255 } 256 257 ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot using board name '%s'\n", name); 258 259 return 0; 260 } 261 262 static int ath12k_core_create_board_name(struct ath12k_base *ab, char *name, 263 size_t name_len) 264 { 265 return __ath12k_core_create_board_name(ab, name, name_len, true, false, false); 266 } 267 268 static int ath12k_core_create_fallback_board_name(struct ath12k_base *ab, char *name, 269 size_t name_len) 270 { 271 return __ath12k_core_create_board_name(ab, name, name_len, false, false, true); 272 } 273 274 static int ath12k_core_create_bus_type_board_name(struct ath12k_base *ab, char *name, 275 size_t name_len) 276 { 277 return __ath12k_core_create_board_name(ab, name, name_len, false, true, true); 278 } 279 280 const struct firmware *ath12k_core_firmware_request(struct ath12k_base *ab, 281 const char *file) 282 { 283 const struct firmware *fw; 284 char path[100]; 285 int ret; 286 287 if (!file) 288 return ERR_PTR(-ENOENT); 289 290 ath12k_core_create_firmware_path(ab, file, path, sizeof(path)); 291 292 ret = firmware_request_nowarn(&fw, path, ab->dev); 293 if (ret) 294 return ERR_PTR(ret); 295 296 ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot firmware request %s size %zu\n", 297 path, fw->size); 298 299 return fw; 300 } 301 302 void ath12k_core_free_bdf(struct ath12k_base *ab, struct ath12k_board_data *bd) 303 { 304 if (!IS_ERR(bd->fw)) 305 release_firmware(bd->fw); 306 307 memset(bd, 0, sizeof(*bd)); 308 } 309 310 static int ath12k_core_parse_bd_ie_board(struct ath12k_base *ab, 311 struct ath12k_board_data *bd, 312 const void *buf, size_t buf_len, 313 const char *boardname, 314 int ie_id, 315 int name_id, 316 int data_id) 317 { 318 const struct ath12k_fw_ie *hdr; 319 bool name_match_found; 320 int ret, board_ie_id; 321 size_t board_ie_len; 322 const void *board_ie_data; 323 324 name_match_found = false; 325 326 /* go through ATH12K_BD_IE_BOARD_/ATH12K_BD_IE_REGDB_ elements */ 327 while (buf_len > sizeof(struct ath12k_fw_ie)) { 328 hdr = buf; 329 board_ie_id = le32_to_cpu(hdr->id); 330 board_ie_len = le32_to_cpu(hdr->len); 331 board_ie_data = hdr->data; 332 333 buf_len -= sizeof(*hdr); 334 buf += sizeof(*hdr); 335 336 if (buf_len < ALIGN(board_ie_len, 4)) { 337 ath12k_err(ab, "invalid %s length: %zu < %zu\n", 338 ath12k_bd_ie_type_str(ie_id), 339 buf_len, ALIGN(board_ie_len, 4)); 340 ret = -EINVAL; 341 goto out; 342 } 343 344 if (board_ie_id == name_id) { 345 ath12k_dbg_dump(ab, ATH12K_DBG_BOOT, "board name", "", 346 board_ie_data, board_ie_len); 347 348 if (board_ie_len != strlen(boardname)) 349 goto next; 350 351 ret = memcmp(board_ie_data, boardname, strlen(boardname)); 352 if (ret) 353 goto next; 354 355 name_match_found = true; 356 ath12k_dbg(ab, ATH12K_DBG_BOOT, 357 "boot found match %s for name '%s'", 358 ath12k_bd_ie_type_str(ie_id), 359 boardname); 360 } else if (board_ie_id == data_id) { 361 if (!name_match_found) 362 /* no match found */ 363 goto next; 364 365 ath12k_dbg(ab, ATH12K_DBG_BOOT, 366 "boot found %s for '%s'", 367 ath12k_bd_ie_type_str(ie_id), 368 boardname); 369 370 bd->data = board_ie_data; 371 bd->len = board_ie_len; 372 373 ret = 0; 374 goto out; 375 } else { 376 ath12k_warn(ab, "unknown %s id found: %d\n", 377 ath12k_bd_ie_type_str(ie_id), 378 board_ie_id); 379 } 380 next: 381 /* jump over the padding */ 382 board_ie_len = ALIGN(board_ie_len, 4); 383 384 buf_len -= board_ie_len; 385 buf += board_ie_len; 386 } 387 388 /* no match found */ 389 ret = -ENOENT; 390 391 out: 392 return ret; 393 } 394 395 static int ath12k_core_fetch_board_data_api_n(struct ath12k_base *ab, 396 struct ath12k_board_data *bd, 397 const char *boardname, 398 int ie_id_match, 399 int name_id, 400 int data_id) 401 { 402 size_t len, magic_len; 403 const u8 *data; 404 char *filename, filepath[100]; 405 size_t ie_len; 406 struct ath12k_fw_ie *hdr; 407 int ret, ie_id; 408 409 filename = ATH12K_BOARD_API2_FILE; 410 411 if (!bd->fw) 412 bd->fw = ath12k_core_firmware_request(ab, filename); 413 414 if (IS_ERR(bd->fw)) 415 return PTR_ERR(bd->fw); 416 417 data = bd->fw->data; 418 len = bd->fw->size; 419 420 ath12k_core_create_firmware_path(ab, filename, 421 filepath, sizeof(filepath)); 422 423 /* magic has extra null byte padded */ 424 magic_len = strlen(ATH12K_BOARD_MAGIC) + 1; 425 if (len < magic_len) { 426 ath12k_err(ab, "failed to find magic value in %s, file too short: %zu\n", 427 filepath, len); 428 ret = -EINVAL; 429 goto err; 430 } 431 432 if (memcmp(data, ATH12K_BOARD_MAGIC, magic_len)) { 433 ath12k_err(ab, "found invalid board magic\n"); 434 ret = -EINVAL; 435 goto err; 436 } 437 438 /* magic is padded to 4 bytes */ 439 magic_len = ALIGN(magic_len, 4); 440 if (len < magic_len) { 441 ath12k_err(ab, "failed: %s too small to contain board data, len: %zu\n", 442 filepath, len); 443 ret = -EINVAL; 444 goto err; 445 } 446 447 data += magic_len; 448 len -= magic_len; 449 450 while (len > sizeof(struct ath12k_fw_ie)) { 451 hdr = (struct ath12k_fw_ie *)data; 452 ie_id = le32_to_cpu(hdr->id); 453 ie_len = le32_to_cpu(hdr->len); 454 455 len -= sizeof(*hdr); 456 data = hdr->data; 457 458 if (len < ALIGN(ie_len, 4)) { 459 ath12k_err(ab, "invalid length for board ie_id %d ie_len %zu len %zu\n", 460 ie_id, ie_len, len); 461 ret = -EINVAL; 462 goto err; 463 } 464 465 if (ie_id == ie_id_match) { 466 ret = ath12k_core_parse_bd_ie_board(ab, bd, data, 467 ie_len, 468 boardname, 469 ie_id_match, 470 name_id, 471 data_id); 472 if (ret == -ENOENT) 473 /* no match found, continue */ 474 goto next; 475 else if (ret) 476 /* there was an error, bail out */ 477 goto err; 478 /* either found or error, so stop searching */ 479 goto out; 480 } 481 next: 482 /* jump over the padding */ 483 ie_len = ALIGN(ie_len, 4); 484 485 len -= ie_len; 486 data += ie_len; 487 } 488 489 out: 490 if (!bd->data || !bd->len) { 491 ath12k_dbg(ab, ATH12K_DBG_BOOT, 492 "failed to fetch %s for %s from %s\n", 493 ath12k_bd_ie_type_str(ie_id_match), 494 boardname, filepath); 495 ret = -ENODATA; 496 goto err; 497 } 498 499 return 0; 500 501 err: 502 ath12k_core_free_bdf(ab, bd); 503 return ret; 504 } 505 506 int ath12k_core_fetch_board_data_api_1(struct ath12k_base *ab, 507 struct ath12k_board_data *bd, 508 char *filename) 509 { 510 bd->fw = ath12k_core_firmware_request(ab, filename); 511 if (IS_ERR(bd->fw)) 512 return PTR_ERR(bd->fw); 513 514 bd->data = bd->fw->data; 515 bd->len = bd->fw->size; 516 517 return 0; 518 } 519 520 #define BOARD_NAME_SIZE 200 521 int ath12k_core_fetch_bdf(struct ath12k_base *ab, struct ath12k_board_data *bd) 522 { 523 char boardname[BOARD_NAME_SIZE], fallback_boardname[BOARD_NAME_SIZE]; 524 char *filename, filepath[100]; 525 int bd_api; 526 int ret; 527 528 filename = ATH12K_BOARD_API2_FILE; 529 530 ret = ath12k_core_create_board_name(ab, boardname, sizeof(boardname)); 531 if (ret) { 532 ath12k_err(ab, "failed to create board name: %d", ret); 533 return ret; 534 } 535 536 bd_api = 2; 537 ret = ath12k_core_fetch_board_data_api_n(ab, bd, boardname, 538 ATH12K_BD_IE_BOARD, 539 ATH12K_BD_IE_BOARD_NAME, 540 ATH12K_BD_IE_BOARD_DATA); 541 if (!ret) 542 goto success; 543 544 ret = ath12k_core_create_fallback_board_name(ab, fallback_boardname, 545 sizeof(fallback_boardname)); 546 if (ret) { 547 ath12k_err(ab, "failed to create fallback board name: %d", ret); 548 return ret; 549 } 550 551 ret = ath12k_core_fetch_board_data_api_n(ab, bd, fallback_boardname, 552 ATH12K_BD_IE_BOARD, 553 ATH12K_BD_IE_BOARD_NAME, 554 ATH12K_BD_IE_BOARD_DATA); 555 if (!ret) 556 goto success; 557 558 bd_api = 1; 559 ret = ath12k_core_fetch_board_data_api_1(ab, bd, ATH12K_DEFAULT_BOARD_FILE); 560 if (ret) { 561 ath12k_core_create_firmware_path(ab, filename, 562 filepath, sizeof(filepath)); 563 ath12k_err(ab, "failed to fetch board data for %s from %s\n", 564 boardname, filepath); 565 if (memcmp(boardname, fallback_boardname, strlen(boardname))) 566 ath12k_err(ab, "failed to fetch board data for %s from %s\n", 567 fallback_boardname, filepath); 568 569 ath12k_err(ab, "failed to fetch board.bin from %s\n", 570 ab->hw_params->fw.dir); 571 return ret; 572 } 573 574 success: 575 ath12k_dbg(ab, ATH12K_DBG_BOOT, "using board api %d\n", bd_api); 576 return 0; 577 } 578 579 int ath12k_core_fetch_regdb(struct ath12k_base *ab, struct ath12k_board_data *bd) 580 { 581 char boardname[BOARD_NAME_SIZE], default_boardname[BOARD_NAME_SIZE]; 582 int ret; 583 584 ret = ath12k_core_create_board_name(ab, boardname, BOARD_NAME_SIZE); 585 if (ret) { 586 ath12k_dbg(ab, ATH12K_DBG_BOOT, 587 "failed to create board name for regdb: %d", ret); 588 goto exit; 589 } 590 591 ret = ath12k_core_fetch_board_data_api_n(ab, bd, boardname, 592 ATH12K_BD_IE_REGDB, 593 ATH12K_BD_IE_REGDB_NAME, 594 ATH12K_BD_IE_REGDB_DATA); 595 if (!ret) 596 goto exit; 597 598 ret = ath12k_core_create_bus_type_board_name(ab, default_boardname, 599 BOARD_NAME_SIZE); 600 if (ret) { 601 ath12k_dbg(ab, ATH12K_DBG_BOOT, 602 "failed to create default board name for regdb: %d", ret); 603 goto exit; 604 } 605 606 ret = ath12k_core_fetch_board_data_api_n(ab, bd, default_boardname, 607 ATH12K_BD_IE_REGDB, 608 ATH12K_BD_IE_REGDB_NAME, 609 ATH12K_BD_IE_REGDB_DATA); 610 if (!ret) 611 goto exit; 612 613 ret = ath12k_core_fetch_board_data_api_1(ab, bd, ATH12K_REGDB_FILE_NAME); 614 if (ret) 615 ath12k_dbg(ab, ATH12K_DBG_BOOT, "failed to fetch %s from %s\n", 616 ATH12K_REGDB_FILE_NAME, ab->hw_params->fw.dir); 617 618 exit: 619 if (!ret) 620 ath12k_dbg(ab, ATH12K_DBG_BOOT, "fetched regdb\n"); 621 622 return ret; 623 } 624 625 u32 ath12k_core_get_max_station_per_radio(struct ath12k_base *ab) 626 { 627 if (ab->num_radios == 2) 628 return TARGET_NUM_STATIONS(ab, DBS); 629 if (ab->num_radios == 3) 630 return TARGET_NUM_STATIONS(ab, DBS_SBS); 631 return TARGET_NUM_STATIONS(ab, SINGLE); 632 } 633 634 u32 ath12k_core_get_max_peers_per_radio(struct ath12k_base *ab) 635 { 636 return ath12k_core_get_max_station_per_radio(ab) + TARGET_NUM_VDEVS(ab); 637 } 638 EXPORT_SYMBOL(ath12k_core_get_max_peers_per_radio); 639 640 struct reserved_mem *ath12k_core_get_reserved_mem(struct ath12k_base *ab, 641 int index) 642 { 643 struct device *dev = ab->dev; 644 struct reserved_mem *rmem; 645 struct device_node *node; 646 647 node = of_parse_phandle(dev->of_node, "memory-region", index); 648 if (!node) { 649 ath12k_dbg(ab, ATH12K_DBG_BOOT, 650 "failed to parse memory-region for index %d\n", index); 651 return NULL; 652 } 653 654 rmem = of_reserved_mem_lookup(node); 655 of_node_put(node); 656 if (!rmem) { 657 ath12k_dbg(ab, ATH12K_DBG_BOOT, 658 "unable to get memory-region for index %d\n", index); 659 return NULL; 660 } 661 662 return rmem; 663 } 664 665 static inline 666 void ath12k_core_to_group_ref_get(struct ath12k_base *ab) 667 { 668 struct ath12k_hw_group *ag = ab->ag; 669 670 lockdep_assert_held(&ag->mutex); 671 672 if (ab->hw_group_ref) { 673 ath12k_dbg(ab, ATH12K_DBG_BOOT, "core already attached to group %d\n", 674 ag->id); 675 return; 676 } 677 678 ab->hw_group_ref = true; 679 ag->num_started++; 680 681 ath12k_dbg(ab, ATH12K_DBG_BOOT, "core attached to group %d, num_started %d\n", 682 ag->id, ag->num_started); 683 } 684 685 static inline 686 void ath12k_core_to_group_ref_put(struct ath12k_base *ab) 687 { 688 struct ath12k_hw_group *ag = ab->ag; 689 690 lockdep_assert_held(&ag->mutex); 691 692 if (!ab->hw_group_ref) { 693 ath12k_dbg(ab, ATH12K_DBG_BOOT, "core already de-attached from group %d\n", 694 ag->id); 695 return; 696 } 697 698 ab->hw_group_ref = false; 699 ag->num_started--; 700 701 ath12k_dbg(ab, ATH12K_DBG_BOOT, "core de-attached from group %d, num_started %d\n", 702 ag->id, ag->num_started); 703 } 704 705 static void ath12k_core_stop(struct ath12k_base *ab) 706 { 707 ath12k_link_sta_rhash_tbl_destroy(ab); 708 709 ath12k_core_to_group_ref_put(ab); 710 711 if (!test_bit(ATH12K_FLAG_CRASH_FLUSH, &ab->dev_flags)) 712 ath12k_qmi_firmware_stop(ab); 713 714 ath12k_acpi_stop(ab); 715 716 ath12k_dp_rx_pdev_reo_cleanup(ab); 717 ath12k_hif_stop(ab); 718 ath12k_wmi_detach(ab); 719 ath12k_dp_cmn_device_deinit(ath12k_ab_to_dp(ab)); 720 721 /* De-Init of components as needed */ 722 } 723 724 static void ath12k_core_check_cc_code_bdfext(const struct dmi_header *hdr, void *data) 725 { 726 struct ath12k_base *ab = data; 727 const char *magic = ATH12K_SMBIOS_BDF_EXT_MAGIC; 728 struct ath12k_smbios_bdf *smbios = (struct ath12k_smbios_bdf *)hdr; 729 ssize_t copied; 730 size_t len; 731 int i; 732 733 if (ab->qmi.target.bdf_ext[0] != '\0') 734 return; 735 736 if (hdr->type != ATH12K_SMBIOS_BDF_EXT_TYPE) 737 return; 738 739 if (hdr->length != ATH12K_SMBIOS_BDF_EXT_LENGTH) { 740 ath12k_dbg(ab, ATH12K_DBG_BOOT, 741 "wrong smbios bdf ext type length (%d).\n", 742 hdr->length); 743 return; 744 } 745 746 spin_lock_bh(&ab->base_lock); 747 748 switch (smbios->country_code_flag) { 749 case ATH12K_SMBIOS_CC_ISO: 750 ab->new_alpha2[0] = u16_get_bits(smbios->cc_code >> 8, 0xff); 751 ab->new_alpha2[1] = u16_get_bits(smbios->cc_code, 0xff); 752 ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot smbios cc_code %c%c\n", 753 ab->new_alpha2[0], ab->new_alpha2[1]); 754 break; 755 case ATH12K_SMBIOS_CC_WW: 756 ab->new_alpha2[0] = '0'; 757 ab->new_alpha2[1] = '0'; 758 ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot smbios worldwide regdomain\n"); 759 break; 760 default: 761 ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot ignore smbios country code setting %d\n", 762 smbios->country_code_flag); 763 break; 764 } 765 766 spin_unlock_bh(&ab->base_lock); 767 768 if (!smbios->bdf_enabled) { 769 ath12k_dbg(ab, ATH12K_DBG_BOOT, "bdf variant name not found.\n"); 770 return; 771 } 772 773 /* Only one string exists (per spec) */ 774 if (memcmp(smbios->bdf_ext, magic, strlen(magic)) != 0) { 775 ath12k_dbg(ab, ATH12K_DBG_BOOT, 776 "bdf variant magic does not match.\n"); 777 return; 778 } 779 780 len = min_t(size_t, 781 strlen(smbios->bdf_ext), sizeof(ab->qmi.target.bdf_ext)); 782 for (i = 0; i < len; i++) { 783 if (!isascii(smbios->bdf_ext[i]) || !isprint(smbios->bdf_ext[i])) { 784 ath12k_dbg(ab, ATH12K_DBG_BOOT, 785 "bdf variant name contains non ascii chars.\n"); 786 return; 787 } 788 } 789 790 /* Copy extension name without magic prefix */ 791 copied = strscpy(ab->qmi.target.bdf_ext, smbios->bdf_ext + strlen(magic), 792 sizeof(ab->qmi.target.bdf_ext)); 793 if (copied < 0) { 794 ath12k_dbg(ab, ATH12K_DBG_BOOT, 795 "bdf variant string is longer than the buffer can accommodate\n"); 796 return; 797 } 798 799 ath12k_dbg(ab, ATH12K_DBG_BOOT, 800 "found and validated bdf variant smbios_type 0x%x bdf %s\n", 801 ATH12K_SMBIOS_BDF_EXT_TYPE, ab->qmi.target.bdf_ext); 802 } 803 804 int ath12k_core_check_smbios(struct ath12k_base *ab) 805 { 806 ab->qmi.target.bdf_ext[0] = '\0'; 807 dmi_walk(ath12k_core_check_cc_code_bdfext, ab); 808 809 if (ab->qmi.target.bdf_ext[0] == '\0') 810 return -ENODATA; 811 812 return 0; 813 } 814 815 static int ath12k_core_soc_create(struct ath12k_base *ab) 816 { 817 int ret; 818 819 if (ath12k_ftm_mode) { 820 ab->fw_mode = ATH12K_FIRMWARE_MODE_FTM; 821 ath12k_info(ab, "Booting in ftm mode\n"); 822 } 823 824 ret = ath12k_qmi_init_service(ab); 825 if (ret) { 826 ath12k_err(ab, "failed to initialize qmi :%d\n", ret); 827 return ret; 828 } 829 830 ath12k_debugfs_soc_create(ab); 831 832 ret = ath12k_hif_power_up(ab); 833 if (ret) { 834 ath12k_err(ab, "failed to power up :%d\n", ret); 835 goto err_qmi_deinit; 836 } 837 838 return 0; 839 840 err_qmi_deinit: 841 ath12k_debugfs_soc_destroy(ab); 842 ath12k_qmi_deinit_service(ab); 843 return ret; 844 } 845 846 static void ath12k_core_soc_destroy(struct ath12k_base *ab) 847 { 848 ath12k_hif_power_down(ab, false); 849 ath12k_reg_free(ab); 850 ath12k_debugfs_soc_destroy(ab); 851 ath12k_qmi_deinit_service(ab); 852 } 853 854 static int ath12k_core_pdev_create(struct ath12k_base *ab) 855 { 856 int ret; 857 858 ret = ath12k_dp_pdev_alloc(ab); 859 if (ret) { 860 ath12k_err(ab, "failed to attach DP pdev: %d\n", ret); 861 return ret; 862 } 863 864 ret = ath12k_thermal_register(ab); 865 if (ret) { 866 ath12k_err(ab, "could not register thermal device: %d\n", ret); 867 goto err_dp_pdev_free; 868 } 869 870 ath12k_debugfs_pdev_create(ab); 871 872 return 0; 873 874 err_dp_pdev_free: 875 ath12k_dp_pdev_free(ab); 876 return ret; 877 } 878 879 static void ath12k_core_pdev_destroy(struct ath12k_base *ab) 880 { 881 ath12k_thermal_unregister(ab); 882 ath12k_dp_pdev_free(ab); 883 } 884 885 static int ath12k_core_start(struct ath12k_base *ab) 886 { 887 int ret; 888 889 lockdep_assert_held(&ab->core_lock); 890 891 ret = ath12k_wmi_attach(ab); 892 if (ret) { 893 ath12k_err(ab, "failed to attach wmi: %d\n", ret); 894 return ret; 895 } 896 897 ret = ath12k_htc_init(ab); 898 if (ret) { 899 ath12k_err(ab, "failed to init htc: %d\n", ret); 900 goto err_wmi_detach; 901 } 902 903 ret = ath12k_hif_start(ab); 904 if (ret) { 905 ath12k_err(ab, "failed to start HIF: %d\n", ret); 906 goto err_wmi_detach; 907 } 908 909 ret = ath12k_htc_wait_target(&ab->htc); 910 if (ret) { 911 ath12k_err(ab, "failed to connect to HTC: %d\n", ret); 912 goto err_hif_stop; 913 } 914 915 ret = ath12k_dp_htt_connect(ath12k_ab_to_dp(ab)); 916 if (ret) { 917 ath12k_err(ab, "failed to connect to HTT: %d\n", ret); 918 goto err_hif_stop; 919 } 920 921 ret = ath12k_wmi_connect(ab); 922 if (ret) { 923 ath12k_err(ab, "failed to connect wmi: %d\n", ret); 924 goto err_hif_stop; 925 } 926 927 ret = ath12k_htc_start(&ab->htc); 928 if (ret) { 929 ath12k_err(ab, "failed to start HTC: %d\n", ret); 930 goto err_hif_stop; 931 } 932 933 ret = ath12k_wmi_wait_for_service_ready(ab); 934 if (ret) { 935 ath12k_err(ab, "failed to receive wmi service ready event: %d\n", 936 ret); 937 goto err_hif_stop; 938 } 939 940 ath12k_hal_cc_config(ab); 941 942 ret = ath12k_dp_rx_pdev_reo_setup(ab); 943 if (ret) { 944 ath12k_err(ab, "failed to initialize reo destination rings: %d\n", ret); 945 goto err_hif_stop; 946 } 947 948 ret = ath12k_wmi_cmd_init(ab); 949 if (ret) { 950 ath12k_err(ab, "failed to send wmi init cmd: %d\n", ret); 951 goto err_reo_cleanup; 952 } 953 954 ret = ath12k_wmi_wait_for_unified_ready(ab); 955 if (ret) { 956 ath12k_err(ab, "failed to receive wmi unified ready event: %d\n", 957 ret); 958 goto err_reo_cleanup; 959 } 960 961 /* put hardware to DBS mode */ 962 if (ab->hw_params->single_pdev_only) { 963 ret = ath12k_wmi_set_hw_mode(ab, WMI_HOST_HW_MODE_DBS); 964 if (ret) { 965 ath12k_err(ab, "failed to send dbs mode: %d\n", ret); 966 goto err_reo_cleanup; 967 } 968 } 969 970 ret = ath12k_dp_tx_htt_h2t_ver_req_msg(ab); 971 if (ret) { 972 ath12k_err(ab, "failed to send htt version request message: %d\n", 973 ret); 974 goto err_reo_cleanup; 975 } 976 977 ath12k_acpi_set_dsm_func(ab); 978 979 /* Indicate the core start in the appropriate group */ 980 ath12k_core_to_group_ref_get(ab); 981 982 ret = ath12k_link_sta_rhash_tbl_init(ab); 983 if (ret) { 984 ath12k_warn(ab, "failed to init peer addr rhash table %d\n", ret); 985 goto err_reo_cleanup; 986 } 987 988 return 0; 989 990 err_reo_cleanup: 991 ath12k_dp_rx_pdev_reo_cleanup(ab); 992 err_hif_stop: 993 ath12k_hif_stop(ab); 994 err_wmi_detach: 995 ath12k_wmi_detach(ab); 996 return ret; 997 } 998 999 static void ath12k_core_device_cleanup(struct ath12k_base *ab) 1000 { 1001 mutex_lock(&ab->core_lock); 1002 1003 ath12k_hif_irq_disable(ab); 1004 ath12k_core_pdev_destroy(ab); 1005 1006 mutex_unlock(&ab->core_lock); 1007 } 1008 1009 static int ath12k_core_device_setup(struct ath12k_base *ab) 1010 { 1011 int ret; 1012 1013 guard(mutex)(&ab->core_lock); 1014 1015 ret = ath12k_core_pdev_create(ab); 1016 if (ret) { 1017 ath12k_err(ab, "failed to create pdev core %d\n", ret); 1018 return ret; 1019 } 1020 1021 ath12k_hif_irq_enable(ab); 1022 1023 ret = ath12k_core_rfkill_config(ab); 1024 if (ret && ret != -EOPNOTSUPP) 1025 return ret; 1026 1027 return 0; 1028 } 1029 1030 static void ath12k_core_hw_group_stop(struct ath12k_hw_group *ag) 1031 { 1032 struct ath12k_base *ab; 1033 int i; 1034 1035 lockdep_assert_held(&ag->mutex); 1036 1037 clear_bit(ATH12K_GROUP_FLAG_REGISTERED, &ag->flags); 1038 1039 for (i = ag->num_devices - 1; i >= 0; i--) { 1040 ab = ag->ab[i]; 1041 if (!ab) 1042 continue; 1043 1044 clear_bit(ATH12K_FLAG_REGISTERED, &ab->dev_flags); 1045 1046 ath12k_core_device_cleanup(ab); 1047 } 1048 1049 /* Unregister MAC (drops wiphys) only after per-device cleanup */ 1050 ath12k_mac_unregister(ag); 1051 1052 /* Teardown MLO state after MAC unregister for symmetry */ 1053 ath12k_mac_mlo_teardown(ag); 1054 1055 ath12k_mac_destroy(ag); 1056 } 1057 1058 u8 ath12k_get_num_partner_link(struct ath12k *ar) 1059 { 1060 struct ath12k_base *partner_ab, *ab = ar->ab; 1061 struct ath12k_hw_group *ag = ab->ag; 1062 struct ath12k_pdev *pdev; 1063 u8 num_link = 0; 1064 int i, j; 1065 1066 lockdep_assert_held(&ag->mutex); 1067 1068 for (i = 0; i < ag->num_devices; i++) { 1069 partner_ab = ag->ab[i]; 1070 1071 for (j = 0; j < partner_ab->num_radios; j++) { 1072 pdev = &partner_ab->pdevs[j]; 1073 1074 /* Avoid the self link */ 1075 if (ar == pdev->ar) 1076 continue; 1077 1078 num_link++; 1079 } 1080 } 1081 1082 return num_link; 1083 } 1084 1085 static int __ath12k_mac_mlo_ready(struct ath12k *ar) 1086 { 1087 u8 num_link = ath12k_get_num_partner_link(ar); 1088 int ret; 1089 1090 if (num_link == 0) 1091 return 0; 1092 1093 ret = ath12k_wmi_mlo_ready(ar); 1094 if (ret) { 1095 ath12k_err(ar->ab, "MLO ready failed for pdev %d: %d\n", 1096 ar->pdev_idx, ret); 1097 return ret; 1098 } 1099 1100 ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "mlo ready done for pdev %d\n", 1101 ar->pdev_idx); 1102 1103 return 0; 1104 } 1105 1106 int ath12k_mac_mlo_ready(struct ath12k_hw_group *ag) 1107 { 1108 struct ath12k_hw *ah; 1109 struct ath12k *ar; 1110 int ret; 1111 int i, j; 1112 1113 for (i = 0; i < ag->num_hw; i++) { 1114 ah = ag->ah[i]; 1115 if (!ah) 1116 continue; 1117 1118 for_each_ar(ah, ar, j) { 1119 ar = &ah->radio[j]; 1120 ret = __ath12k_mac_mlo_ready(ar); 1121 if (ret) 1122 return ret; 1123 } 1124 } 1125 1126 return 0; 1127 } 1128 1129 static int ath12k_core_mlo_setup(struct ath12k_hw_group *ag) 1130 { 1131 int ret, i; 1132 1133 if (!ag->mlo_capable) 1134 return 0; 1135 1136 ret = ath12k_mac_mlo_setup(ag); 1137 if (ret) 1138 return ret; 1139 1140 for (i = 0; i < ag->num_devices; i++) 1141 ath12k_dp_partner_cc_init(ag->ab[i]); 1142 1143 ret = ath12k_mac_mlo_ready(ag); 1144 if (ret) 1145 goto err_mlo_teardown; 1146 1147 return 0; 1148 1149 err_mlo_teardown: 1150 ath12k_mac_mlo_teardown(ag); 1151 1152 return ret; 1153 } 1154 1155 static int ath12k_core_hw_group_start(struct ath12k_hw_group *ag) 1156 { 1157 struct ath12k_base *ab; 1158 int ret, i; 1159 1160 lockdep_assert_held(&ag->mutex); 1161 1162 if (test_bit(ATH12K_GROUP_FLAG_REGISTERED, &ag->flags)) { 1163 ret = ath12k_core_mlo_setup(ag); 1164 if (WARN_ON(ret)) { 1165 ath12k_mac_unregister(ag); 1166 goto err_mac_destroy; 1167 } 1168 goto core_pdev_create; 1169 } 1170 1171 ret = ath12k_mac_allocate(ag); 1172 if (WARN_ON(ret)) 1173 return ret; 1174 1175 ret = ath12k_core_mlo_setup(ag); 1176 if (WARN_ON(ret)) 1177 goto err_mac_destroy; 1178 1179 ret = ath12k_mac_register(ag); 1180 if (WARN_ON(ret)) 1181 goto err_mlo_teardown; 1182 1183 set_bit(ATH12K_GROUP_FLAG_REGISTERED, &ag->flags); 1184 1185 core_pdev_create: 1186 for (i = 0; i < ag->num_devices; i++) { 1187 ab = ag->ab[i]; 1188 if (!ab) 1189 continue; 1190 1191 set_bit(ATH12K_FLAG_REGISTERED, &ab->dev_flags); 1192 1193 ret = ath12k_core_device_setup(ab); 1194 if (ret) 1195 goto err; 1196 } 1197 1198 return 0; 1199 1200 err: 1201 ath12k_core_hw_group_stop(ag); 1202 return ret; 1203 1204 err_mlo_teardown: 1205 ath12k_mac_mlo_teardown(ag); 1206 1207 err_mac_destroy: 1208 ath12k_mac_destroy(ag); 1209 1210 return ret; 1211 } 1212 1213 static int ath12k_core_start_firmware(struct ath12k_base *ab, 1214 enum ath12k_firmware_mode mode) 1215 { 1216 int ret; 1217 1218 ath12k_ce_get_shadow_config(ab, &ab->qmi.ce_cfg.shadow_reg_v3, 1219 &ab->qmi.ce_cfg.shadow_reg_v3_len); 1220 1221 ret = ath12k_qmi_firmware_start(ab, mode); 1222 if (ret) { 1223 ath12k_err(ab, "failed to send firmware start: %d\n", ret); 1224 return ret; 1225 } 1226 1227 return ret; 1228 } 1229 1230 static inline 1231 bool ath12k_core_hw_group_start_ready(struct ath12k_hw_group *ag) 1232 { 1233 lockdep_assert_held(&ag->mutex); 1234 1235 return (ag->num_started == ag->num_devices); 1236 } 1237 1238 static void ath12k_fw_stats_pdevs_free(struct list_head *head) 1239 { 1240 struct ath12k_fw_stats_pdev *i, *tmp; 1241 1242 list_for_each_entry_safe(i, tmp, head, list) { 1243 list_del(&i->list); 1244 kfree(i); 1245 } 1246 } 1247 1248 void ath12k_fw_stats_bcn_free(struct list_head *head) 1249 { 1250 struct ath12k_fw_stats_bcn *i, *tmp; 1251 1252 list_for_each_entry_safe(i, tmp, head, list) { 1253 list_del(&i->list); 1254 kfree(i); 1255 } 1256 } 1257 1258 static void ath12k_fw_stats_vdevs_free(struct list_head *head) 1259 { 1260 struct ath12k_fw_stats_vdev *i, *tmp; 1261 1262 list_for_each_entry_safe(i, tmp, head, list) { 1263 list_del(&i->list); 1264 kfree(i); 1265 } 1266 } 1267 1268 void ath12k_fw_stats_init(struct ath12k *ar) 1269 { 1270 INIT_LIST_HEAD(&ar->fw_stats.vdevs); 1271 INIT_LIST_HEAD(&ar->fw_stats.pdevs); 1272 INIT_LIST_HEAD(&ar->fw_stats.bcn); 1273 init_completion(&ar->fw_stats_complete); 1274 init_completion(&ar->fw_stats_done); 1275 } 1276 1277 void ath12k_fw_stats_free(struct ath12k_fw_stats *stats) 1278 { 1279 ath12k_fw_stats_pdevs_free(&stats->pdevs); 1280 ath12k_fw_stats_vdevs_free(&stats->vdevs); 1281 ath12k_fw_stats_bcn_free(&stats->bcn); 1282 } 1283 1284 void ath12k_fw_stats_reset(struct ath12k *ar) 1285 { 1286 spin_lock_bh(&ar->data_lock); 1287 ath12k_fw_stats_free(&ar->fw_stats); 1288 ar->fw_stats.num_vdev_recvd = 0; 1289 spin_unlock_bh(&ar->data_lock); 1290 } 1291 1292 static void ath12k_core_trigger_partner(struct ath12k_base *ab) 1293 { 1294 struct ath12k_hw_group *ag = ab->ag; 1295 struct ath12k_base *partner_ab; 1296 bool found = false; 1297 int i; 1298 1299 for (i = 0; i < ag->num_devices; i++) { 1300 partner_ab = ag->ab[i]; 1301 if (!partner_ab) 1302 continue; 1303 1304 if (found) 1305 ath12k_qmi_trigger_host_cap(partner_ab); 1306 1307 found = (partner_ab == ab); 1308 } 1309 } 1310 1311 int ath12k_core_qmi_firmware_ready(struct ath12k_base *ab) 1312 { 1313 struct ath12k_hw_group *ag = ath12k_ab_to_ag(ab); 1314 int ret, i; 1315 1316 ret = ath12k_core_start_firmware(ab, ab->fw_mode); 1317 if (ret) { 1318 ath12k_err(ab, "failed to start firmware: %d\n", ret); 1319 return ret; 1320 } 1321 1322 ret = ath12k_ce_init_pipes(ab); 1323 if (ret) { 1324 ath12k_err(ab, "failed to initialize CE: %d\n", ret); 1325 goto err_firmware_stop; 1326 } 1327 1328 ret = ath12k_dp_cmn_device_init(ath12k_ab_to_dp(ab)); 1329 if (ret) { 1330 ath12k_err(ab, "failed to init DP: %d\n", ret); 1331 goto err_firmware_stop; 1332 } 1333 1334 mutex_lock(&ag->mutex); 1335 mutex_lock(&ab->core_lock); 1336 1337 ret = ath12k_core_start(ab); 1338 if (ret) { 1339 ath12k_err(ab, "failed to start core: %d\n", ret); 1340 goto err_deinit; 1341 } 1342 1343 mutex_unlock(&ab->core_lock); 1344 1345 if (ath12k_core_hw_group_start_ready(ag)) { 1346 ret = ath12k_core_hw_group_start(ag); 1347 if (ret) { 1348 ath12k_warn(ab, "unable to start hw group\n"); 1349 goto err_core_stop; 1350 } 1351 ath12k_dbg(ab, ATH12K_DBG_BOOT, "group %d started\n", ag->id); 1352 } else { 1353 ath12k_core_trigger_partner(ab); 1354 } 1355 1356 mutex_unlock(&ag->mutex); 1357 1358 return 0; 1359 1360 err_core_stop: 1361 for (i = ag->num_devices - 1; i >= 0; i--) { 1362 ab = ag->ab[i]; 1363 if (!ab) 1364 continue; 1365 1366 mutex_lock(&ab->core_lock); 1367 ath12k_core_stop(ab); 1368 mutex_unlock(&ab->core_lock); 1369 } 1370 mutex_unlock(&ag->mutex); 1371 goto exit; 1372 1373 err_deinit: 1374 ath12k_dp_cmn_device_deinit(ath12k_ab_to_dp(ab)); 1375 mutex_unlock(&ab->core_lock); 1376 mutex_unlock(&ag->mutex); 1377 1378 err_firmware_stop: 1379 ath12k_qmi_firmware_stop(ab); 1380 1381 exit: 1382 return ret; 1383 } 1384 1385 static int ath12k_core_reconfigure_on_crash(struct ath12k_base *ab) 1386 { 1387 int ret, total_vdev; 1388 1389 mutex_lock(&ab->core_lock); 1390 ath12k_link_sta_rhash_tbl_destroy(ab); 1391 ath12k_thermal_unregister(ab); 1392 ath12k_dp_pdev_free(ab); 1393 ath12k_ce_cleanup_pipes(ab); 1394 ath12k_wmi_detach(ab); 1395 ath12k_dp_rx_pdev_reo_cleanup(ab); 1396 mutex_unlock(&ab->core_lock); 1397 1398 ath12k_dp_cmn_device_deinit(ath12k_ab_to_dp(ab)); 1399 ath12k_hal_srng_deinit(ab); 1400 total_vdev = ab->num_radios * TARGET_NUM_VDEVS(ab); 1401 ab->free_vdev_map = (1LL << total_vdev) - 1; 1402 1403 ret = ath12k_hal_srng_init(ab); 1404 if (ret) 1405 return ret; 1406 1407 clear_bit(ATH12K_FLAG_CRASH_FLUSH, &ab->dev_flags); 1408 1409 ret = ath12k_core_qmi_firmware_ready(ab); 1410 if (ret) 1411 goto err_hal_srng_deinit; 1412 1413 clear_bit(ATH12K_FLAG_RECOVERY, &ab->dev_flags); 1414 1415 return 0; 1416 1417 err_hal_srng_deinit: 1418 ath12k_hal_srng_deinit(ab); 1419 return ret; 1420 } 1421 1422 static void ath12k_rfkill_work(struct work_struct *work) 1423 { 1424 struct ath12k_base *ab = container_of(work, struct ath12k_base, rfkill_work); 1425 struct ath12k_hw_group *ag = ab->ag; 1426 struct ath12k *ar; 1427 struct ath12k_hw *ah; 1428 struct ieee80211_hw *hw; 1429 bool rfkill_radio_on; 1430 int i, j; 1431 1432 spin_lock_bh(&ab->base_lock); 1433 rfkill_radio_on = ab->rfkill_radio_on; 1434 spin_unlock_bh(&ab->base_lock); 1435 1436 for (i = 0; i < ag->num_hw; i++) { 1437 ah = ath12k_ag_to_ah(ag, i); 1438 if (!ah) 1439 continue; 1440 1441 for (j = 0; j < ah->num_radio; j++) { 1442 ar = &ah->radio[j]; 1443 if (!ar) 1444 continue; 1445 1446 ath12k_mac_rfkill_enable_radio(ar, rfkill_radio_on); 1447 } 1448 1449 hw = ah->hw; 1450 wiphy_rfkill_set_hw_state(hw->wiphy, !rfkill_radio_on); 1451 } 1452 } 1453 1454 void ath12k_core_halt(struct ath12k *ar) 1455 { 1456 struct list_head *pos, *n; 1457 struct ath12k_base *ab = ar->ab; 1458 1459 lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy); 1460 1461 ar->num_created_vdevs = 0; 1462 ar->allocated_vdev_map = 0; 1463 1464 ath12k_mac_scan_finish(ar); 1465 ath12k_mac_peer_cleanup_all(ar); 1466 cancel_delayed_work_sync(&ar->scan.timeout); 1467 cancel_work_sync(&ar->regd_update_work); 1468 cancel_work_sync(&ar->regd_channel_update_work); 1469 cancel_work_sync(&ab->rfkill_work); 1470 cancel_work_sync(&ab->update_11d_work); 1471 1472 rcu_assign_pointer(ab->pdevs_active[ar->pdev_idx], NULL); 1473 synchronize_rcu(); 1474 1475 spin_lock_bh(&ar->data_lock); 1476 list_for_each_safe(pos, n, &ar->arvifs) 1477 list_del_init(pos); 1478 spin_unlock_bh(&ar->data_lock); 1479 1480 idr_init(&ar->txmgmt_idr); 1481 } 1482 1483 static void ath12k_core_pre_reconfigure_recovery(struct ath12k_base *ab) 1484 { 1485 struct ath12k_hw_group *ag = ab->ag; 1486 struct ath12k *ar; 1487 struct ath12k_hw *ah; 1488 int i, j; 1489 1490 spin_lock_bh(&ab->base_lock); 1491 ab->stats.fw_crash_counter++; 1492 spin_unlock_bh(&ab->base_lock); 1493 1494 if (ab->is_reset) 1495 set_bit(ATH12K_FLAG_CRASH_FLUSH, &ab->dev_flags); 1496 1497 for (i = 0; i < ag->num_hw; i++) { 1498 ah = ath12k_ag_to_ah(ag, i); 1499 if (!ah || ah->state == ATH12K_HW_STATE_OFF || 1500 ah->state == ATH12K_HW_STATE_TM) 1501 continue; 1502 1503 wiphy_lock(ah->hw->wiphy); 1504 1505 /* If queue 0 is stopped, it is safe to assume that all 1506 * other queues are stopped by driver via 1507 * ieee80211_stop_queues() below. This means, there is 1508 * no need to stop it again and hence continue 1509 */ 1510 if (ieee80211_queue_stopped(ah->hw, 0)) { 1511 wiphy_unlock(ah->hw->wiphy); 1512 continue; 1513 } 1514 1515 ieee80211_stop_queues(ah->hw); 1516 1517 for (j = 0; j < ah->num_radio; j++) { 1518 ar = &ah->radio[j]; 1519 1520 ath12k_mac_drain_tx(ar); 1521 ar->state_11d = ATH12K_11D_IDLE; 1522 complete(&ar->completed_11d_scan); 1523 complete(&ar->scan.started); 1524 complete_all(&ar->scan.completed); 1525 complete(&ar->scan.on_channel); 1526 complete(&ar->peer_assoc_done); 1527 complete(&ar->peer_delete_done); 1528 complete(&ar->install_key_done); 1529 complete(&ar->vdev_setup_done); 1530 complete(&ar->vdev_delete_done); 1531 complete(&ar->bss_survey_done); 1532 complete_all(&ar->regd_update_completed); 1533 complete_all(&ar->thermal.wmi_sync); 1534 1535 wake_up(&ar->dp.tx_empty_waitq); 1536 idr_for_each(&ar->txmgmt_idr, 1537 ath12k_mac_tx_mgmt_pending_free, ar); 1538 idr_destroy(&ar->txmgmt_idr); 1539 wake_up(&ar->txmgmt_empty_waitq); 1540 1541 ar->monitor_vdev_id = -1; 1542 ar->monitor_vdev_created = false; 1543 ar->monitor_started = false; 1544 } 1545 1546 wiphy_unlock(ah->hw->wiphy); 1547 } 1548 1549 wake_up(&ab->wmi_ab.tx_credits_wq); 1550 wake_up(&ab->peer_mapping_wq); 1551 } 1552 1553 static void ath12k_update_11d(struct work_struct *work) 1554 { 1555 struct ath12k_base *ab = container_of(work, struct ath12k_base, update_11d_work); 1556 struct ath12k *ar; 1557 struct ath12k_pdev *pdev; 1558 struct wmi_set_current_country_arg arg = {}; 1559 int ret, i; 1560 1561 spin_lock_bh(&ab->base_lock); 1562 memcpy(&arg.alpha2, &ab->new_alpha2, 2); 1563 spin_unlock_bh(&ab->base_lock); 1564 1565 ath12k_dbg(ab, ATH12K_DBG_WMI, "update 11d new cc %c%c\n", 1566 arg.alpha2[0], arg.alpha2[1]); 1567 1568 for (i = 0; i < ab->num_radios; i++) { 1569 pdev = &ab->pdevs[i]; 1570 ar = pdev->ar; 1571 1572 memcpy(&ar->alpha2, &arg.alpha2, 2); 1573 1574 reinit_completion(&ar->regd_update_completed); 1575 1576 ret = ath12k_wmi_send_set_current_country_cmd(ar, &arg); 1577 if (ret) 1578 ath12k_warn(ar->ab, 1579 "pdev id %d failed set current country code: %d\n", 1580 i, ret); 1581 } 1582 } 1583 1584 static void ath12k_core_post_reconfigure_recovery(struct ath12k_base *ab) 1585 { 1586 struct ath12k_hw_group *ag = ab->ag; 1587 struct ath12k_hw *ah; 1588 struct ath12k *ar; 1589 int i, j; 1590 1591 for (i = 0; i < ag->num_hw; i++) { 1592 ah = ath12k_ag_to_ah(ag, i); 1593 if (!ah || ah->state == ATH12K_HW_STATE_OFF) 1594 continue; 1595 1596 wiphy_lock(ah->hw->wiphy); 1597 mutex_lock(&ah->hw_mutex); 1598 1599 switch (ah->state) { 1600 case ATH12K_HW_STATE_ON: 1601 ah->state = ATH12K_HW_STATE_RESTARTING; 1602 1603 for (j = 0; j < ah->num_radio; j++) { 1604 ar = &ah->radio[j]; 1605 ath12k_core_halt(ar); 1606 } 1607 1608 ath12k_mac_dp_peer_cleanup(ah); 1609 break; 1610 case ATH12K_HW_STATE_OFF: 1611 ath12k_warn(ab, 1612 "cannot restart hw %d that hasn't been started\n", 1613 i); 1614 break; 1615 case ATH12K_HW_STATE_RESTARTING: 1616 break; 1617 case ATH12K_HW_STATE_RESTARTED: 1618 ah->state = ATH12K_HW_STATE_WEDGED; 1619 fallthrough; 1620 case ATH12K_HW_STATE_WEDGED: 1621 ath12k_warn(ab, 1622 "device is wedged, will not restart hw %d\n", i); 1623 break; 1624 case ATH12K_HW_STATE_TM: 1625 ath12k_warn(ab, "fw mode reset done radio %d\n", i); 1626 break; 1627 } 1628 1629 mutex_unlock(&ah->hw_mutex); 1630 wiphy_unlock(ah->hw->wiphy); 1631 } 1632 1633 complete(&ab->driver_recovery); 1634 } 1635 1636 static void ath12k_core_restart(struct work_struct *work) 1637 { 1638 struct ath12k_base *ab = container_of(work, struct ath12k_base, restart_work); 1639 struct ath12k_hw_group *ag = ab->ag; 1640 struct ath12k_hw *ah; 1641 int ret, i; 1642 1643 ret = ath12k_core_reconfigure_on_crash(ab); 1644 if (ret) { 1645 ath12k_err(ab, "failed to reconfigure driver on crash recovery\n"); 1646 return; 1647 } 1648 1649 if (ab->is_reset) { 1650 if (!test_bit(ATH12K_FLAG_REGISTERED, &ab->dev_flags)) { 1651 atomic_dec(&ab->reset_count); 1652 complete(&ab->reset_complete); 1653 ab->is_reset = false; 1654 atomic_set(&ab->fail_cont_count, 0); 1655 ath12k_dbg(ab, ATH12K_DBG_BOOT, "reset success\n"); 1656 } 1657 1658 mutex_lock(&ag->mutex); 1659 1660 if (!ath12k_core_hw_group_start_ready(ag)) { 1661 mutex_unlock(&ag->mutex); 1662 goto exit_restart; 1663 } 1664 1665 for (i = 0; i < ag->num_hw; i++) { 1666 ah = ath12k_ag_to_ah(ag, i); 1667 ieee80211_restart_hw(ah->hw); 1668 } 1669 1670 mutex_unlock(&ag->mutex); 1671 } 1672 1673 exit_restart: 1674 complete(&ab->restart_completed); 1675 } 1676 1677 static void ath12k_core_reset(struct work_struct *work) 1678 { 1679 struct ath12k_base *ab = container_of(work, struct ath12k_base, reset_work); 1680 struct ath12k_hw_group *ag = ab->ag; 1681 int reset_count, fail_cont_count, i; 1682 long time_left; 1683 1684 if (!(test_bit(ATH12K_FLAG_QMI_FW_READY_COMPLETE, &ab->dev_flags))) { 1685 ath12k_warn(ab, "ignore reset dev flags 0x%lx\n", ab->dev_flags); 1686 return; 1687 } 1688 1689 /* Sometimes the recovery will fail and then the next all recovery fail, 1690 * this is to avoid infinite recovery since it can not recovery success 1691 */ 1692 fail_cont_count = atomic_read(&ab->fail_cont_count); 1693 1694 if (fail_cont_count >= ATH12K_RESET_MAX_FAIL_COUNT_FINAL) 1695 return; 1696 1697 if (fail_cont_count >= ATH12K_RESET_MAX_FAIL_COUNT_FIRST && 1698 time_before(jiffies, ab->reset_fail_timeout)) 1699 return; 1700 1701 reset_count = atomic_inc_return(&ab->reset_count); 1702 1703 if (reset_count > 1) { 1704 /* Sometimes it happened another reset worker before the previous one 1705 * completed, then the second reset worker will destroy the previous one, 1706 * thus below is to avoid that. 1707 */ 1708 ath12k_warn(ab, "already resetting count %d\n", reset_count); 1709 1710 reinit_completion(&ab->reset_complete); 1711 time_left = wait_for_completion_timeout(&ab->reset_complete, 1712 ATH12K_RESET_TIMEOUT_HZ); 1713 if (time_left) { 1714 ath12k_dbg(ab, ATH12K_DBG_BOOT, "to skip reset\n"); 1715 atomic_dec(&ab->reset_count); 1716 return; 1717 } 1718 1719 ab->reset_fail_timeout = jiffies + ATH12K_RESET_FAIL_TIMEOUT_HZ; 1720 /* Record the continuous recovery fail count when recovery failed*/ 1721 fail_cont_count = atomic_inc_return(&ab->fail_cont_count); 1722 } 1723 1724 ath12k_dbg(ab, ATH12K_DBG_BOOT, "reset starting\n"); 1725 1726 ab->is_reset = true; 1727 atomic_set(&ab->recovery_count, 0); 1728 1729 ath12k_coredump_collect(ab); 1730 ath12k_core_pre_reconfigure_recovery(ab); 1731 1732 ath12k_core_post_reconfigure_recovery(ab); 1733 1734 ath12k_dbg(ab, ATH12K_DBG_BOOT, "waiting recovery start...\n"); 1735 1736 ath12k_hif_irq_disable(ab); 1737 ath12k_hif_ce_irq_disable(ab); 1738 1739 ath12k_hif_power_down(ab, false); 1740 1741 /* prepare for power up */ 1742 ab->qmi.num_radios = U8_MAX; 1743 1744 mutex_lock(&ag->mutex); 1745 ath12k_core_to_group_ref_put(ab); 1746 1747 if (ag->num_started > 0) { 1748 ath12k_dbg(ab, ATH12K_DBG_BOOT, 1749 "waiting for %d partner device(s) to reset\n", 1750 ag->num_started); 1751 mutex_unlock(&ag->mutex); 1752 return; 1753 } 1754 1755 /* Prepare MLO global memory region for power up */ 1756 ath12k_qmi_reset_mlo_mem(ag); 1757 1758 for (i = 0; i < ag->num_devices; i++) { 1759 ab = ag->ab[i]; 1760 if (!ab) 1761 continue; 1762 1763 ath12k_hif_power_up(ab); 1764 ath12k_dbg(ab, ATH12K_DBG_BOOT, "reset started\n"); 1765 } 1766 1767 mutex_unlock(&ag->mutex); 1768 } 1769 1770 enum ath12k_qmi_mem_mode ath12k_core_get_memory_mode(struct ath12k_base *ab) 1771 { 1772 unsigned long total_ram; 1773 struct sysinfo si; 1774 1775 si_meminfo(&si); 1776 total_ram = si.totalram * si.mem_unit; 1777 1778 if (total_ram < SZ_512M) 1779 return ATH12K_QMI_MEMORY_MODE_LOW_512_M; 1780 1781 return ATH12K_QMI_MEMORY_MODE_DEFAULT; 1782 } 1783 EXPORT_SYMBOL(ath12k_core_get_memory_mode); 1784 1785 int ath12k_core_pre_init(struct ath12k_base *ab) 1786 { 1787 const struct ath12k_mem_profile_based_param *param; 1788 1789 param = &ath12k_mem_profile_based_param[ab->target_mem_mode]; 1790 ab->profile_param = param; 1791 ath12k_fw_map(ab); 1792 1793 return 0; 1794 } 1795 1796 static int ath12k_core_panic_handler(struct notifier_block *nb, 1797 unsigned long action, void *data) 1798 { 1799 struct ath12k_base *ab = container_of(nb, struct ath12k_base, 1800 panic_nb); 1801 1802 return ath12k_hif_panic_handler(ab); 1803 } 1804 1805 static int ath12k_core_panic_notifier_register(struct ath12k_base *ab) 1806 { 1807 ab->panic_nb.notifier_call = ath12k_core_panic_handler; 1808 1809 return atomic_notifier_chain_register(&panic_notifier_list, 1810 &ab->panic_nb); 1811 } 1812 1813 static void ath12k_core_panic_notifier_unregister(struct ath12k_base *ab) 1814 { 1815 atomic_notifier_chain_unregister(&panic_notifier_list, 1816 &ab->panic_nb); 1817 } 1818 1819 static inline 1820 bool ath12k_core_hw_group_create_ready(struct ath12k_hw_group *ag) 1821 { 1822 lockdep_assert_held(&ag->mutex); 1823 1824 return (ag->num_probed == ag->num_devices); 1825 } 1826 1827 static struct ath12k_hw_group *ath12k_core_hw_group_alloc(struct ath12k_base *ab) 1828 { 1829 struct ath12k_hw_group *ag; 1830 int count = 0; 1831 1832 lockdep_assert_held(&ath12k_hw_group_mutex); 1833 1834 list_for_each_entry(ag, &ath12k_hw_group_list, list) 1835 count++; 1836 1837 ag = kzalloc_obj(*ag); 1838 if (!ag) 1839 return NULL; 1840 1841 ag->id = count; 1842 list_add(&ag->list, &ath12k_hw_group_list); 1843 mutex_init(&ag->mutex); 1844 ag->mlo_capable = false; 1845 1846 return ag; 1847 } 1848 1849 static void ath12k_core_free_wsi_info(struct ath12k_hw_group *ag) 1850 { 1851 int i; 1852 1853 for (i = 0; i < ag->num_devices; i++) { 1854 of_node_put(ag->wsi_node[i]); 1855 ag->wsi_node[i] = NULL; 1856 } 1857 ag->num_devices = 0; 1858 } 1859 1860 static void ath12k_core_hw_group_free(struct ath12k_hw_group *ag) 1861 { 1862 mutex_lock(&ath12k_hw_group_mutex); 1863 1864 ath12k_core_free_wsi_info(ag); 1865 list_del(&ag->list); 1866 kfree(ag); 1867 1868 mutex_unlock(&ath12k_hw_group_mutex); 1869 } 1870 1871 static struct ath12k_hw_group *ath12k_core_hw_group_find_by_dt(struct ath12k_base *ab) 1872 { 1873 struct ath12k_hw_group *ag; 1874 int i; 1875 1876 if (!ab->dev->of_node) 1877 return NULL; 1878 1879 list_for_each_entry(ag, &ath12k_hw_group_list, list) 1880 for (i = 0; i < ag->num_devices; i++) 1881 if (ag->wsi_node[i] == ab->dev->of_node) 1882 return ag; 1883 1884 return NULL; 1885 } 1886 1887 static int ath12k_core_get_wsi_info(struct ath12k_hw_group *ag, 1888 struct ath12k_base *ab) 1889 { 1890 struct device_node *next_wsi_dev; 1891 int device_count = 0, ret = 0; 1892 struct device_node *wsi_dev; 1893 1894 wsi_dev = of_node_get(ab->dev->of_node); 1895 if (!wsi_dev) 1896 return -ENODEV; 1897 1898 do { 1899 if (device_count >= ATH12K_MAX_DEVICES) { 1900 ath12k_warn(ab, "device count in DT %d is more than limit %d\n", 1901 device_count, ATH12K_MAX_DEVICES); 1902 ret = -EINVAL; 1903 break; 1904 } 1905 1906 ag->wsi_node[device_count++] = of_node_get(wsi_dev); 1907 1908 struct device_node *tx_endpoint __free(device_node) = 1909 of_graph_get_endpoint_by_regs(wsi_dev, 0, -1); 1910 if (!tx_endpoint) { 1911 ret = -ENODEV; 1912 break; 1913 } 1914 1915 struct device_node *next_rx_endpoint __free(device_node) = 1916 of_graph_get_remote_endpoint(tx_endpoint); 1917 if (!next_rx_endpoint) { 1918 ret = -ENODEV; 1919 break; 1920 } 1921 1922 next_wsi_dev = of_graph_get_port_parent(next_rx_endpoint); 1923 if (!next_wsi_dev) { 1924 ret = -ENODEV; 1925 break; 1926 } 1927 1928 of_node_put(wsi_dev); 1929 wsi_dev = next_wsi_dev; 1930 } while (ab->dev->of_node != wsi_dev); 1931 1932 if (ret) { 1933 while (--device_count >= 0) { 1934 of_node_put(ag->wsi_node[device_count]); 1935 ag->wsi_node[device_count] = NULL; 1936 } 1937 1938 of_node_put(wsi_dev); 1939 return ret; 1940 } 1941 1942 of_node_put(wsi_dev); 1943 ag->num_devices = device_count; 1944 1945 return 0; 1946 } 1947 1948 static int ath12k_core_get_wsi_index(struct ath12k_hw_group *ag, 1949 struct ath12k_base *ab) 1950 { 1951 int i, wsi_controller_index = -1, node_index = -1; 1952 bool control; 1953 1954 for (i = 0; i < ag->num_devices; i++) { 1955 control = of_property_read_bool(ag->wsi_node[i], "qcom,wsi-controller"); 1956 if (control) 1957 wsi_controller_index = i; 1958 1959 if (ag->wsi_node[i] == ab->dev->of_node) 1960 node_index = i; 1961 } 1962 1963 if (wsi_controller_index == -1) { 1964 ath12k_dbg(ab, ATH12K_DBG_BOOT, "wsi controller is not defined in dt"); 1965 return -EINVAL; 1966 } 1967 1968 if (node_index == -1) { 1969 ath12k_dbg(ab, ATH12K_DBG_BOOT, "unable to get WSI node index"); 1970 return -EINVAL; 1971 } 1972 1973 ab->wsi_info.index = (ag->num_devices + node_index - wsi_controller_index) % 1974 ag->num_devices; 1975 1976 return 0; 1977 } 1978 1979 static struct ath12k_hw_group *ath12k_core_hw_group_assign(struct ath12k_base *ab) 1980 { 1981 struct ath12k_wsi_info *wsi = &ab->wsi_info; 1982 struct ath12k_hw_group *ag; 1983 1984 lockdep_assert_held(&ath12k_hw_group_mutex); 1985 1986 if (ath12k_ftm_mode) 1987 goto invalid_group; 1988 1989 /* The grouping of multiple devices will be done based on device tree file. 1990 * The platforms that do not have any valid group information would have 1991 * each device to be part of its own invalid group. 1992 * 1993 * We use group id ATH12K_INVALID_GROUP_ID for single device group 1994 * which didn't have dt entry or wrong dt entry, there could be many 1995 * groups with same group id, i.e ATH12K_INVALID_GROUP_ID. So 1996 * default group id of ATH12K_INVALID_GROUP_ID combined with 1997 * num devices in ath12k_hw_group determines if the group is 1998 * multi device or single device group 1999 */ 2000 2001 ag = ath12k_core_hw_group_find_by_dt(ab); 2002 if (!ag) { 2003 ag = ath12k_core_hw_group_alloc(ab); 2004 if (!ag) { 2005 ath12k_warn(ab, "unable to create new hw group\n"); 2006 return NULL; 2007 } 2008 2009 if (ath12k_core_get_wsi_info(ag, ab) || 2010 ath12k_core_get_wsi_index(ag, ab)) { 2011 ath12k_dbg(ab, ATH12K_DBG_BOOT, 2012 "unable to get wsi info from dt, grouping single device"); 2013 ath12k_core_free_wsi_info(ag); 2014 ag->id = ATH12K_INVALID_GROUP_ID; 2015 ag->num_devices = 1; 2016 wsi->index = 0; 2017 } 2018 2019 goto exit; 2020 } else if (test_bit(ATH12K_GROUP_FLAG_UNREGISTER, &ag->flags)) { 2021 ath12k_dbg(ab, ATH12K_DBG_BOOT, "group id %d in unregister state\n", 2022 ag->id); 2023 goto invalid_group; 2024 } else { 2025 if (ath12k_core_get_wsi_index(ag, ab)) 2026 goto invalid_group; 2027 goto exit; 2028 } 2029 2030 invalid_group: 2031 ag = ath12k_core_hw_group_alloc(ab); 2032 if (!ag) { 2033 ath12k_warn(ab, "unable to create new hw group\n"); 2034 return NULL; 2035 } 2036 2037 ag->id = ATH12K_INVALID_GROUP_ID; 2038 ag->num_devices = 1; 2039 wsi->index = 0; 2040 2041 ath12k_dbg(ab, ATH12K_DBG_BOOT, "single device added to hardware group\n"); 2042 2043 exit: 2044 if (ag->num_probed >= ag->num_devices) { 2045 ath12k_warn(ab, "unable to add new device to group, max limit reached\n"); 2046 goto invalid_group; 2047 } 2048 2049 ab->device_id = ag->num_probed++; 2050 ag->ab[ab->device_id] = ab; 2051 ab->ag = ag; 2052 2053 ath12k_dp_cmn_hw_group_assign(ath12k_ab_to_dp(ab), ag); 2054 2055 ath12k_dbg(ab, ATH12K_DBG_BOOT, "wsi group-id %d num-devices %d index %d", 2056 ag->id, ag->num_devices, wsi->index); 2057 2058 return ag; 2059 } 2060 2061 void ath12k_core_hw_group_unassign(struct ath12k_base *ab) 2062 { 2063 struct ath12k_hw_group *ag = ath12k_ab_to_ag(ab); 2064 u8 device_id = ab->device_id; 2065 int num_probed; 2066 2067 if (!ag) 2068 return; 2069 2070 mutex_lock(&ag->mutex); 2071 2072 if (WARN_ON(device_id >= ag->num_devices)) { 2073 mutex_unlock(&ag->mutex); 2074 return; 2075 } 2076 2077 if (WARN_ON(ag->ab[device_id] != ab)) { 2078 mutex_unlock(&ag->mutex); 2079 return; 2080 } 2081 2082 ath12k_dp_cmn_hw_group_unassign(ath12k_ab_to_dp(ab), ag); 2083 2084 ag->ab[device_id] = NULL; 2085 ab->ag = NULL; 2086 ab->device_id = ATH12K_INVALID_DEVICE_ID; 2087 2088 if (ag->num_probed) 2089 ag->num_probed--; 2090 2091 num_probed = ag->num_probed; 2092 2093 mutex_unlock(&ag->mutex); 2094 2095 if (!num_probed) 2096 ath12k_core_hw_group_free(ag); 2097 } 2098 2099 static void ath12k_core_hw_group_destroy(struct ath12k_hw_group *ag) 2100 { 2101 struct ath12k_base *ab; 2102 int i; 2103 2104 if (WARN_ON(!ag)) 2105 return; 2106 2107 for (i = 0; i < ag->num_devices; i++) { 2108 ab = ag->ab[i]; 2109 if (!ab) 2110 continue; 2111 2112 ath12k_core_soc_destroy(ab); 2113 } 2114 } 2115 2116 void ath12k_core_hw_group_cleanup(struct ath12k_hw_group *ag) 2117 { 2118 struct ath12k_base *ab; 2119 int i; 2120 2121 if (!ag) 2122 return; 2123 2124 mutex_lock(&ag->mutex); 2125 2126 if (test_bit(ATH12K_GROUP_FLAG_UNREGISTER, &ag->flags)) { 2127 mutex_unlock(&ag->mutex); 2128 return; 2129 } 2130 2131 set_bit(ATH12K_GROUP_FLAG_UNREGISTER, &ag->flags); 2132 2133 ath12k_core_hw_group_stop(ag); 2134 2135 for (i = 0; i < ag->num_devices; i++) { 2136 ab = ag->ab[i]; 2137 if (!ab) 2138 continue; 2139 2140 mutex_lock(&ab->core_lock); 2141 ath12k_core_stop(ab); 2142 mutex_unlock(&ab->core_lock); 2143 } 2144 2145 mutex_unlock(&ag->mutex); 2146 } 2147 2148 static int ath12k_core_hw_group_create(struct ath12k_hw_group *ag) 2149 { 2150 struct ath12k_base *ab; 2151 int i, ret; 2152 2153 lockdep_assert_held(&ag->mutex); 2154 2155 for (i = 0; i < ag->num_devices; i++) { 2156 ab = ag->ab[i]; 2157 if (!ab) 2158 continue; 2159 2160 mutex_lock(&ab->core_lock); 2161 2162 ret = ath12k_core_soc_create(ab); 2163 if (ret) { 2164 mutex_unlock(&ab->core_lock); 2165 ath12k_err(ab, "failed to create soc %d core: %d\n", i, ret); 2166 goto destroy; 2167 } 2168 2169 mutex_unlock(&ab->core_lock); 2170 } 2171 2172 return 0; 2173 2174 destroy: 2175 for (i--; i >= 0; i--) { 2176 ab = ag->ab[i]; 2177 if (!ab) 2178 continue; 2179 2180 mutex_lock(&ab->core_lock); 2181 ath12k_core_soc_destroy(ab); 2182 mutex_unlock(&ab->core_lock); 2183 } 2184 2185 return ret; 2186 } 2187 2188 void ath12k_core_hw_group_set_mlo_capable(struct ath12k_hw_group *ag) 2189 { 2190 struct ath12k_base *ab; 2191 int i; 2192 2193 if (ath12k_ftm_mode) 2194 return; 2195 2196 lockdep_assert_held(&ag->mutex); 2197 2198 if (ag->num_devices == 1) { 2199 ab = ag->ab[0]; 2200 /* QCN9274 firmware uses firmware IE for MLO advertisement */ 2201 if (ab->fw.fw_features_valid) { 2202 ag->mlo_capable = 2203 ath12k_fw_feature_supported(ab, ATH12K_FW_FEATURE_MLO); 2204 return; 2205 } 2206 2207 /* while WCN7850 firmware uses QMI single_chip_mlo_support bit */ 2208 ag->mlo_capable = ab->single_chip_mlo_support; 2209 return; 2210 } 2211 2212 ag->mlo_capable = true; 2213 2214 for (i = 0; i < ag->num_devices; i++) { 2215 ab = ag->ab[i]; 2216 if (!ab) 2217 continue; 2218 2219 /* even if 1 device's firmware feature indicates MLO 2220 * unsupported, make MLO unsupported for the whole group 2221 */ 2222 if (!ath12k_fw_feature_supported(ab, ATH12K_FW_FEATURE_MLO)) { 2223 ag->mlo_capable = false; 2224 return; 2225 } 2226 } 2227 } 2228 2229 int ath12k_core_init(struct ath12k_base *ab) 2230 { 2231 struct ath12k_hw_group *ag; 2232 int ret; 2233 2234 ret = ath12k_core_panic_notifier_register(ab); 2235 if (ret) 2236 ath12k_warn(ab, "failed to register panic handler: %d\n", ret); 2237 2238 mutex_lock(&ath12k_hw_group_mutex); 2239 2240 ag = ath12k_core_hw_group_assign(ab); 2241 if (!ag) { 2242 mutex_unlock(&ath12k_hw_group_mutex); 2243 ath12k_warn(ab, "unable to get hw group\n"); 2244 ret = -ENODEV; 2245 goto err_unregister_notifier; 2246 } 2247 2248 mutex_unlock(&ath12k_hw_group_mutex); 2249 2250 mutex_lock(&ag->mutex); 2251 2252 ath12k_dbg(ab, ATH12K_DBG_BOOT, "num devices %d num probed %d\n", 2253 ag->num_devices, ag->num_probed); 2254 2255 if (ath12k_core_hw_group_create_ready(ag)) { 2256 ret = ath12k_core_hw_group_create(ag); 2257 if (ret) { 2258 mutex_unlock(&ag->mutex); 2259 ath12k_warn(ab, "unable to create hw group\n"); 2260 goto err_unassign_hw_group; 2261 } 2262 } 2263 2264 mutex_unlock(&ag->mutex); 2265 2266 return 0; 2267 2268 err_unassign_hw_group: 2269 ath12k_core_hw_group_unassign(ab); 2270 err_unregister_notifier: 2271 ath12k_core_panic_notifier_unregister(ab); 2272 2273 return ret; 2274 } 2275 2276 void ath12k_core_deinit(struct ath12k_base *ab) 2277 { 2278 ath12k_core_hw_group_destroy(ab->ag); 2279 ath12k_core_hw_group_unassign(ab); 2280 ath12k_core_panic_notifier_unregister(ab); 2281 } 2282 2283 void ath12k_core_free(struct ath12k_base *ab) 2284 { 2285 timer_delete_sync(&ab->rx_replenish_retry); 2286 ath12k_wmi_free(); 2287 destroy_workqueue(ab->workqueue_aux); 2288 destroy_workqueue(ab->workqueue); 2289 kfree(ab); 2290 } 2291 2292 struct ath12k_base *ath12k_core_alloc(struct device *dev, size_t priv_size, 2293 enum ath12k_bus bus) 2294 { 2295 struct ath12k_base *ab; 2296 2297 ab = kzalloc(sizeof(*ab) + priv_size, GFP_KERNEL); 2298 if (!ab) 2299 return NULL; 2300 2301 init_completion(&ab->driver_recovery); 2302 2303 ab->workqueue = create_singlethread_workqueue("ath12k_wq"); 2304 if (!ab->workqueue) 2305 goto err_sc_free; 2306 2307 ab->workqueue_aux = create_singlethread_workqueue("ath12k_aux_wq"); 2308 if (!ab->workqueue_aux) 2309 goto err_free_wq; 2310 2311 if (ath12k_wmi_alloc() < 0) 2312 goto err_free_wq_aux; 2313 2314 mutex_init(&ab->core_lock); 2315 spin_lock_init(&ab->base_lock); 2316 init_completion(&ab->reset_complete); 2317 2318 init_waitqueue_head(&ab->peer_mapping_wq); 2319 init_waitqueue_head(&ab->wmi_ab.tx_credits_wq); 2320 INIT_WORK(&ab->restart_work, ath12k_core_restart); 2321 INIT_WORK(&ab->reset_work, ath12k_core_reset); 2322 INIT_WORK(&ab->rfkill_work, ath12k_rfkill_work); 2323 INIT_WORK(&ab->dump_work, ath12k_coredump_upload); 2324 INIT_WORK(&ab->update_11d_work, ath12k_update_11d); 2325 2326 timer_setup(&ab->rx_replenish_retry, ath12k_ce_rx_replenish_retry, 0); 2327 init_completion(&ab->htc_suspend); 2328 init_completion(&ab->restart_completed); 2329 init_completion(&ab->wow.wakeup_completed); 2330 2331 ab->dev = dev; 2332 ab->hif.bus = bus; 2333 ab->qmi.num_radios = U8_MAX; 2334 ab->single_chip_mlo_support = false; 2335 2336 /* Device index used to identify the devices in a group. 2337 * 2338 * In Intra-device MLO, only one device present in a group, 2339 * so it is always zero. 2340 * 2341 * In Inter-device MLO, Multiple device present in a group, 2342 * expect non-zero value. 2343 */ 2344 ab->device_id = 0; 2345 2346 return ab; 2347 2348 err_free_wq_aux: 2349 destroy_workqueue(ab->workqueue_aux); 2350 err_free_wq: 2351 destroy_workqueue(ab->workqueue); 2352 err_sc_free: 2353 kfree(ab); 2354 return NULL; 2355 } 2356 2357 MODULE_DESCRIPTION("Driver support for Qualcomm Technologies WLAN devices"); 2358 MODULE_LICENSE("Dual BSD/GPL"); 2359