1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* Copyright(c) 2019-2020 Realtek Corporation 3 */ 4 5 #include <linux/devcoredump.h> 6 7 #include "cam.h" 8 #include "chan.h" 9 #include "debug.h" 10 #include "fw.h" 11 #include "mac.h" 12 #include "ps.h" 13 #include "reg.h" 14 #include "ser.h" 15 #include "util.h" 16 17 #define SER_RECFG_TIMEOUT 1000 18 19 enum ser_evt { 20 SER_EV_NONE, 21 SER_EV_STATE_IN, 22 SER_EV_STATE_OUT, 23 SER_EV_L1_RESET, /* M1 */ 24 SER_EV_DO_RECOVERY, /* M3 */ 25 SER_EV_MAC_RESET_DONE, /* M5 */ 26 SER_EV_L2_RESET, 27 SER_EV_L2_RECFG_DONE, 28 SER_EV_L2_RECFG_TIMEOUT, 29 SER_EV_M3_TIMEOUT, 30 SER_EV_FW_M5_TIMEOUT, 31 SER_EV_L0_RESET, 32 SER_EV_MAXX 33 }; 34 35 enum ser_state { 36 SER_IDLE_ST, 37 SER_RESET_TRX_ST, 38 SER_DO_HCI_ST, 39 SER_L2_RESET_ST, 40 SER_ST_MAX_ST 41 }; 42 43 struct ser_msg { 44 struct list_head list; 45 u8 event; 46 }; 47 48 struct state_ent { 49 u8 state; 50 char *name; 51 void (*st_func)(struct rtw89_ser *ser, u8 event); 52 }; 53 54 struct event_ent { 55 u8 event; 56 char *name; 57 }; 58 59 static char *ser_ev_name(struct rtw89_ser *ser, u8 event) 60 { 61 if (event < SER_EV_MAXX) 62 return ser->ev_tbl[event].name; 63 64 return "err_ev_name"; 65 } 66 67 static char *ser_st_name(struct rtw89_ser *ser) 68 { 69 if (ser->state < SER_ST_MAX_ST) 70 return ser->st_tbl[ser->state].name; 71 72 return "err_st_name"; 73 } 74 75 #define RTW89_DEF_SER_CD_TYPE(_name, _type, _size) \ 76 struct ser_cd_ ## _name { \ 77 u32 type; \ 78 u32 type_size; \ 79 u64 padding; \ 80 u8 data[_size]; \ 81 } __packed; \ 82 static void ser_cd_ ## _name ## _init(struct ser_cd_ ## _name *p) \ 83 { \ 84 p->type = _type; \ 85 p->type_size = sizeof(p->data); \ 86 p->padding = 0x0123456789abcdef; \ 87 } 88 89 enum rtw89_ser_cd_type { 90 RTW89_SER_CD_FW_RSVD_PLE = 0, 91 RTW89_SER_CD_FW_BACKTRACE = 1, 92 }; 93 94 RTW89_DEF_SER_CD_TYPE(fw_rsvd_ple, 95 RTW89_SER_CD_FW_RSVD_PLE, 96 RTW89_FW_RSVD_PLE_SIZE); 97 98 RTW89_DEF_SER_CD_TYPE(fw_backtrace, 99 RTW89_SER_CD_FW_BACKTRACE, 100 RTW89_FW_BACKTRACE_MAX_SIZE); 101 102 struct rtw89_ser_cd_buffer { 103 struct ser_cd_fw_rsvd_ple fwple; 104 struct ser_cd_fw_backtrace fwbt; 105 } __packed; 106 107 static struct rtw89_ser_cd_buffer *rtw89_ser_cd_prep(struct rtw89_dev *rtwdev) 108 { 109 struct rtw89_ser_cd_buffer *buf; 110 111 buf = vzalloc(sizeof(*buf)); 112 if (!buf) 113 return NULL; 114 115 ser_cd_fw_rsvd_ple_init(&buf->fwple); 116 ser_cd_fw_backtrace_init(&buf->fwbt); 117 118 return buf; 119 } 120 121 static void rtw89_ser_cd_send(struct rtw89_dev *rtwdev, 122 struct rtw89_ser_cd_buffer *buf) 123 { 124 rtw89_debug(rtwdev, RTW89_DBG_SER, "SER sends core dump\n"); 125 126 /* After calling dev_coredump, buf's lifetime is supposed to be 127 * handled by the device coredump framework. Note that a new dump 128 * will be discarded if a previous one hasn't been released by 129 * framework yet. 130 */ 131 dev_coredumpv(rtwdev->dev, buf, sizeof(*buf), GFP_KERNEL); 132 } 133 134 static void rtw89_ser_cd_free(struct rtw89_dev *rtwdev, 135 struct rtw89_ser_cd_buffer *buf, bool free_self) 136 { 137 if (!free_self) 138 return; 139 140 rtw89_debug(rtwdev, RTW89_DBG_SER, "SER frees core dump by self\n"); 141 142 /* When some problems happen during filling data of core dump, 143 * we won't send it to device coredump framework. Instead, we 144 * free buf by ourselves. 145 */ 146 vfree(buf); 147 } 148 149 static void ser_state_run(struct rtw89_ser *ser, u8 evt) 150 { 151 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 152 153 rtw89_debug(rtwdev, RTW89_DBG_SER, "ser: %s receive %s\n", 154 ser_st_name(ser), ser_ev_name(ser, evt)); 155 156 mutex_lock(&rtwdev->mutex); 157 rtw89_leave_lps(rtwdev); 158 mutex_unlock(&rtwdev->mutex); 159 160 ser->st_tbl[ser->state].st_func(ser, evt); 161 } 162 163 static void ser_state_goto(struct rtw89_ser *ser, u8 new_state) 164 { 165 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 166 167 if (ser->state == new_state || new_state >= SER_ST_MAX_ST) 168 return; 169 ser_state_run(ser, SER_EV_STATE_OUT); 170 171 rtw89_debug(rtwdev, RTW89_DBG_SER, "ser: %s goto -> %s\n", 172 ser_st_name(ser), ser->st_tbl[new_state].name); 173 174 ser->state = new_state; 175 ser_state_run(ser, SER_EV_STATE_IN); 176 } 177 178 static struct ser_msg *__rtw89_ser_dequeue_msg(struct rtw89_ser *ser) 179 { 180 struct ser_msg *msg; 181 182 spin_lock_irq(&ser->msg_q_lock); 183 msg = list_first_entry_or_null(&ser->msg_q, struct ser_msg, list); 184 if (msg) 185 list_del(&msg->list); 186 spin_unlock_irq(&ser->msg_q_lock); 187 188 return msg; 189 } 190 191 static void rtw89_ser_hdl_work(struct work_struct *work) 192 { 193 struct ser_msg *msg; 194 struct rtw89_ser *ser = container_of(work, struct rtw89_ser, 195 ser_hdl_work); 196 197 while ((msg = __rtw89_ser_dequeue_msg(ser))) { 198 ser_state_run(ser, msg->event); 199 kfree(msg); 200 } 201 } 202 203 static int ser_send_msg(struct rtw89_ser *ser, u8 event) 204 { 205 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 206 struct ser_msg *msg = NULL; 207 208 if (test_bit(RTW89_SER_DRV_STOP_RUN, ser->flags)) 209 return -EIO; 210 211 msg = kmalloc(sizeof(*msg), GFP_ATOMIC); 212 if (!msg) 213 return -ENOMEM; 214 215 msg->event = event; 216 217 spin_lock_irq(&ser->msg_q_lock); 218 list_add(&msg->list, &ser->msg_q); 219 spin_unlock_irq(&ser->msg_q_lock); 220 221 ieee80211_queue_work(rtwdev->hw, &ser->ser_hdl_work); 222 return 0; 223 } 224 225 static void rtw89_ser_alarm_work(struct work_struct *work) 226 { 227 struct rtw89_ser *ser = container_of(work, struct rtw89_ser, 228 ser_alarm_work.work); 229 230 ser_send_msg(ser, ser->alarm_event); 231 ser->alarm_event = SER_EV_NONE; 232 } 233 234 static void ser_set_alarm(struct rtw89_ser *ser, u32 ms, u8 event) 235 { 236 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 237 238 if (test_bit(RTW89_SER_DRV_STOP_RUN, ser->flags)) 239 return; 240 241 ser->alarm_event = event; 242 ieee80211_queue_delayed_work(rtwdev->hw, &ser->ser_alarm_work, 243 msecs_to_jiffies(ms)); 244 } 245 246 static void ser_del_alarm(struct rtw89_ser *ser) 247 { 248 cancel_delayed_work(&ser->ser_alarm_work); 249 ser->alarm_event = SER_EV_NONE; 250 } 251 252 /* driver function */ 253 static void drv_stop_tx(struct rtw89_ser *ser) 254 { 255 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 256 257 ieee80211_stop_queues(rtwdev->hw); 258 set_bit(RTW89_SER_DRV_STOP_TX, ser->flags); 259 } 260 261 static void drv_stop_rx(struct rtw89_ser *ser) 262 { 263 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 264 265 clear_bit(RTW89_FLAG_RUNNING, rtwdev->flags); 266 set_bit(RTW89_SER_DRV_STOP_RX, ser->flags); 267 } 268 269 static void drv_trx_reset(struct rtw89_ser *ser) 270 { 271 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 272 273 rtw89_hci_reset(rtwdev); 274 } 275 276 static void drv_resume_tx(struct rtw89_ser *ser) 277 { 278 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 279 280 if (!test_bit(RTW89_SER_DRV_STOP_TX, ser->flags)) 281 return; 282 283 ieee80211_wake_queues(rtwdev->hw); 284 clear_bit(RTW89_SER_DRV_STOP_TX, ser->flags); 285 } 286 287 static void drv_resume_rx(struct rtw89_ser *ser) 288 { 289 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 290 291 if (!test_bit(RTW89_SER_DRV_STOP_RX, ser->flags)) 292 return; 293 294 set_bit(RTW89_FLAG_RUNNING, rtwdev->flags); 295 clear_bit(RTW89_SER_DRV_STOP_RX, ser->flags); 296 } 297 298 static void ser_reset_vif(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif) 299 { 300 rtw89_core_release_bit_map(rtwdev->hw_port, rtwvif->port); 301 rtwvif->net_type = RTW89_NET_TYPE_NO_LINK; 302 rtwvif->trigger = false; 303 } 304 305 static void ser_sta_deinit_cam_iter(void *data, struct ieee80211_sta *sta) 306 { 307 struct rtw89_vif *rtwvif = (struct rtw89_vif *)data; 308 struct rtw89_dev *rtwdev = rtwvif->rtwdev; 309 struct rtw89_sta *rtwsta = (struct rtw89_sta *)sta->drv_priv; 310 311 if (rtwvif->net_type == RTW89_NET_TYPE_AP_MODE || sta->tdls) 312 rtw89_cam_deinit_addr_cam(rtwdev, &rtwsta->addr_cam); 313 if (sta->tdls) 314 rtw89_cam_deinit_bssid_cam(rtwdev, &rtwsta->bssid_cam); 315 316 INIT_LIST_HEAD(&rtwsta->ba_cam_list); 317 } 318 319 static void ser_deinit_cam(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif) 320 { 321 ieee80211_iterate_stations_atomic(rtwdev->hw, 322 ser_sta_deinit_cam_iter, 323 rtwvif); 324 325 rtw89_cam_deinit(rtwdev, rtwvif); 326 327 bitmap_zero(rtwdev->cam_info.ba_cam_map, RTW89_MAX_BA_CAM_NUM); 328 } 329 330 static void ser_reset_mac_binding(struct rtw89_dev *rtwdev) 331 { 332 struct rtw89_vif *rtwvif; 333 334 rtw89_cam_reset_keys(rtwdev); 335 rtw89_for_each_rtwvif(rtwdev, rtwvif) 336 ser_deinit_cam(rtwdev, rtwvif); 337 338 rtw89_core_release_all_bits_map(rtwdev->mac_id_map, RTW89_MAX_MAC_ID_NUM); 339 rtw89_for_each_rtwvif(rtwdev, rtwvif) 340 ser_reset_vif(rtwdev, rtwvif); 341 } 342 343 /* hal function */ 344 static int hal_enable_dma(struct rtw89_ser *ser) 345 { 346 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 347 int ret; 348 349 if (!test_bit(RTW89_SER_HAL_STOP_DMA, ser->flags)) 350 return 0; 351 352 if (!rtwdev->hci.ops->mac_lv1_rcvy) 353 return -EIO; 354 355 ret = rtwdev->hci.ops->mac_lv1_rcvy(rtwdev, RTW89_LV1_RCVY_STEP_2); 356 if (!ret) 357 clear_bit(RTW89_SER_HAL_STOP_DMA, ser->flags); 358 359 return ret; 360 } 361 362 static int hal_stop_dma(struct rtw89_ser *ser) 363 { 364 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 365 int ret; 366 367 if (!rtwdev->hci.ops->mac_lv1_rcvy) 368 return -EIO; 369 370 ret = rtwdev->hci.ops->mac_lv1_rcvy(rtwdev, RTW89_LV1_RCVY_STEP_1); 371 if (!ret) 372 set_bit(RTW89_SER_HAL_STOP_DMA, ser->flags); 373 374 return ret; 375 } 376 377 static void hal_send_m2_event(struct rtw89_ser *ser) 378 { 379 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 380 381 rtw89_mac_set_err_status(rtwdev, MAC_AX_ERR_L1_DISABLE_EN); 382 } 383 384 static void hal_send_m4_event(struct rtw89_ser *ser) 385 { 386 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 387 388 rtw89_mac_set_err_status(rtwdev, MAC_AX_ERR_L1_RCVY_EN); 389 } 390 391 /* state handler */ 392 static void ser_idle_st_hdl(struct rtw89_ser *ser, u8 evt) 393 { 394 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 395 396 switch (evt) { 397 case SER_EV_STATE_IN: 398 rtw89_hci_recovery_complete(rtwdev); 399 break; 400 case SER_EV_L1_RESET: 401 ser_state_goto(ser, SER_RESET_TRX_ST); 402 break; 403 case SER_EV_L2_RESET: 404 ser_state_goto(ser, SER_L2_RESET_ST); 405 break; 406 case SER_EV_STATE_OUT: 407 rtw89_hci_recovery_start(rtwdev); 408 break; 409 default: 410 break; 411 } 412 } 413 414 static void ser_reset_trx_st_hdl(struct rtw89_ser *ser, u8 evt) 415 { 416 switch (evt) { 417 case SER_EV_STATE_IN: 418 drv_stop_tx(ser); 419 420 if (hal_stop_dma(ser)) { 421 ser_state_goto(ser, SER_L2_RESET_ST); 422 break; 423 } 424 425 drv_stop_rx(ser); 426 drv_trx_reset(ser); 427 428 /* wait m3 */ 429 hal_send_m2_event(ser); 430 431 /* set alarm to prevent FW response timeout */ 432 ser_set_alarm(ser, 1000, SER_EV_M3_TIMEOUT); 433 break; 434 435 case SER_EV_DO_RECOVERY: 436 ser_state_goto(ser, SER_DO_HCI_ST); 437 break; 438 439 case SER_EV_M3_TIMEOUT: 440 ser_state_goto(ser, SER_L2_RESET_ST); 441 break; 442 443 case SER_EV_STATE_OUT: 444 ser_del_alarm(ser); 445 hal_enable_dma(ser); 446 drv_resume_rx(ser); 447 drv_resume_tx(ser); 448 break; 449 450 default: 451 break; 452 } 453 } 454 455 static void ser_do_hci_st_hdl(struct rtw89_ser *ser, u8 evt) 456 { 457 switch (evt) { 458 case SER_EV_STATE_IN: 459 /* wait m5 */ 460 hal_send_m4_event(ser); 461 462 /* prevent FW response timeout */ 463 ser_set_alarm(ser, 1000, SER_EV_FW_M5_TIMEOUT); 464 break; 465 466 case SER_EV_FW_M5_TIMEOUT: 467 ser_state_goto(ser, SER_L2_RESET_ST); 468 break; 469 470 case SER_EV_MAC_RESET_DONE: 471 ser_state_goto(ser, SER_IDLE_ST); 472 break; 473 474 case SER_EV_STATE_OUT: 475 ser_del_alarm(ser); 476 break; 477 478 default: 479 break; 480 } 481 } 482 483 static void ser_mac_mem_dump(struct rtw89_dev *rtwdev, u8 *buf, 484 u8 sel, u32 start_addr, u32 len) 485 { 486 u32 *ptr = (u32 *)buf; 487 u32 base_addr, start_page, residue; 488 u32 cnt = 0; 489 u32 i; 490 491 start_page = start_addr / MAC_MEM_DUMP_PAGE_SIZE; 492 residue = start_addr % MAC_MEM_DUMP_PAGE_SIZE; 493 base_addr = rtw89_mac_mem_base_addrs[sel]; 494 base_addr += start_page * MAC_MEM_DUMP_PAGE_SIZE; 495 496 while (cnt < len) { 497 rtw89_write32(rtwdev, R_AX_FILTER_MODEL_ADDR, base_addr); 498 499 for (i = R_AX_INDIR_ACCESS_ENTRY + residue; 500 i < R_AX_INDIR_ACCESS_ENTRY + MAC_MEM_DUMP_PAGE_SIZE; 501 i += 4, ptr++) { 502 *ptr = rtw89_read32(rtwdev, i); 503 cnt += 4; 504 if (cnt >= len) 505 break; 506 } 507 508 residue = 0; 509 base_addr += MAC_MEM_DUMP_PAGE_SIZE; 510 } 511 } 512 513 static void rtw89_ser_fw_rsvd_ple_dump(struct rtw89_dev *rtwdev, u8 *buf) 514 { 515 u32 start_addr = rtwdev->chip->rsvd_ple_ofst; 516 517 rtw89_debug(rtwdev, RTW89_DBG_SER, 518 "dump mem for fw rsvd payload engine (start addr: 0x%x)\n", 519 start_addr); 520 ser_mac_mem_dump(rtwdev, buf, RTW89_MAC_MEM_SHARED_BUF, start_addr, 521 RTW89_FW_RSVD_PLE_SIZE); 522 } 523 524 struct __fw_backtrace_entry { 525 u32 wcpu_addr; 526 u32 size; 527 u32 key; 528 } __packed; 529 530 struct __fw_backtrace_info { 531 u32 ra; 532 u32 sp; 533 } __packed; 534 535 #if defined(__linux__) 536 static_assert(RTW89_FW_BACKTRACE_INFO_SIZE == 537 #elif defined(__FreeBSD__) 538 rtw89_static_assert(RTW89_FW_BACKTRACE_INFO_SIZE == 539 #endif 540 sizeof(struct __fw_backtrace_info)); 541 542 static int rtw89_ser_fw_backtrace_dump(struct rtw89_dev *rtwdev, u8 *buf, 543 const struct __fw_backtrace_entry *ent) 544 { 545 struct __fw_backtrace_info *ptr = (struct __fw_backtrace_info *)buf; 546 u32 fwbt_addr = ent->wcpu_addr - RTW89_WCPU_BASE_ADDR; 547 u32 fwbt_size = ent->size; 548 u32 fwbt_key = ent->key; 549 u32 i; 550 551 if (fwbt_addr == 0) { 552 rtw89_warn(rtwdev, "FW backtrace invalid address: 0x%x\n", 553 fwbt_addr); 554 return -EINVAL; 555 } 556 557 if (fwbt_key != RTW89_FW_BACKTRACE_KEY) { 558 rtw89_warn(rtwdev, "FW backtrace invalid key: 0x%x\n", 559 fwbt_key); 560 return -EINVAL; 561 } 562 563 if (fwbt_size == 0 || !RTW89_VALID_FW_BACKTRACE_SIZE(fwbt_size) || 564 fwbt_size > RTW89_FW_BACKTRACE_MAX_SIZE) { 565 rtw89_warn(rtwdev, "FW backtrace invalid size: 0x%x\n", 566 fwbt_size); 567 return -EINVAL; 568 } 569 570 rtw89_debug(rtwdev, RTW89_DBG_SER, "dump fw backtrace start\n"); 571 rtw89_write32(rtwdev, R_AX_FILTER_MODEL_ADDR, fwbt_addr); 572 573 for (i = R_AX_INDIR_ACCESS_ENTRY; 574 i < R_AX_INDIR_ACCESS_ENTRY + fwbt_size; 575 i += RTW89_FW_BACKTRACE_INFO_SIZE, ptr++) { 576 *ptr = (struct __fw_backtrace_info){ 577 .ra = rtw89_read32(rtwdev, i), 578 .sp = rtw89_read32(rtwdev, i + 4), 579 }; 580 rtw89_debug(rtwdev, RTW89_DBG_SER, 581 "next sp: 0x%x, next ra: 0x%x\n", 582 ptr->sp, ptr->ra); 583 } 584 585 rtw89_debug(rtwdev, RTW89_DBG_SER, "dump fw backtrace end\n"); 586 return 0; 587 } 588 589 static void ser_l2_reset_st_pre_hdl(struct rtw89_ser *ser) 590 { 591 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 592 struct rtw89_ser_cd_buffer *buf; 593 struct __fw_backtrace_entry fwbt_ent; 594 int ret = 0; 595 596 buf = rtw89_ser_cd_prep(rtwdev); 597 if (!buf) { 598 ret = -ENOMEM; 599 goto bottom; 600 } 601 602 rtw89_ser_fw_rsvd_ple_dump(rtwdev, buf->fwple.data); 603 604 fwbt_ent = *(struct __fw_backtrace_entry *)buf->fwple.data; 605 ret = rtw89_ser_fw_backtrace_dump(rtwdev, buf->fwbt.data, &fwbt_ent); 606 if (ret) 607 goto bottom; 608 609 rtw89_ser_cd_send(rtwdev, buf); 610 611 bottom: 612 rtw89_ser_cd_free(rtwdev, buf, !!ret); 613 614 ser_reset_mac_binding(rtwdev); 615 rtw89_core_stop(rtwdev); 616 rtw89_entity_init(rtwdev); 617 INIT_LIST_HEAD(&rtwdev->rtwvifs_list); 618 } 619 620 static void ser_l2_reset_st_hdl(struct rtw89_ser *ser, u8 evt) 621 { 622 struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); 623 624 switch (evt) { 625 case SER_EV_STATE_IN: 626 mutex_lock(&rtwdev->mutex); 627 ser_l2_reset_st_pre_hdl(ser); 628 mutex_unlock(&rtwdev->mutex); 629 630 ieee80211_restart_hw(rtwdev->hw); 631 ser_set_alarm(ser, SER_RECFG_TIMEOUT, SER_EV_L2_RECFG_TIMEOUT); 632 break; 633 634 case SER_EV_L2_RECFG_TIMEOUT: 635 rtw89_info(rtwdev, "Err: ser L2 re-config timeout\n"); 636 fallthrough; 637 case SER_EV_L2_RECFG_DONE: 638 ser_state_goto(ser, SER_IDLE_ST); 639 clear_bit(RTW89_FLAG_RESTART_TRIGGER, rtwdev->flags); 640 break; 641 642 case SER_EV_STATE_OUT: 643 ser_del_alarm(ser); 644 break; 645 646 default: 647 break; 648 } 649 } 650 651 static const struct event_ent ser_ev_tbl[] = { 652 {SER_EV_NONE, "SER_EV_NONE"}, 653 {SER_EV_STATE_IN, "SER_EV_STATE_IN"}, 654 {SER_EV_STATE_OUT, "SER_EV_STATE_OUT"}, 655 {SER_EV_L1_RESET, "SER_EV_L1_RESET"}, 656 {SER_EV_DO_RECOVERY, "SER_EV_DO_RECOVERY m3"}, 657 {SER_EV_MAC_RESET_DONE, "SER_EV_MAC_RESET_DONE m5"}, 658 {SER_EV_L2_RESET, "SER_EV_L2_RESET"}, 659 {SER_EV_L2_RECFG_DONE, "SER_EV_L2_RECFG_DONE"}, 660 {SER_EV_L2_RECFG_TIMEOUT, "SER_EV_L2_RECFG_TIMEOUT"}, 661 {SER_EV_M3_TIMEOUT, "SER_EV_M3_TIMEOUT"}, 662 {SER_EV_FW_M5_TIMEOUT, "SER_EV_FW_M5_TIMEOUT"}, 663 {SER_EV_L0_RESET, "SER_EV_L0_RESET"}, 664 {SER_EV_MAXX, "SER_EV_MAX"} 665 }; 666 667 static const struct state_ent ser_st_tbl[] = { 668 {SER_IDLE_ST, "SER_IDLE_ST", ser_idle_st_hdl}, 669 {SER_RESET_TRX_ST, "SER_RESET_TRX_ST", ser_reset_trx_st_hdl}, 670 {SER_DO_HCI_ST, "SER_DO_HCI_ST", ser_do_hci_st_hdl}, 671 {SER_L2_RESET_ST, "SER_L2_RESET_ST", ser_l2_reset_st_hdl} 672 }; 673 674 int rtw89_ser_init(struct rtw89_dev *rtwdev) 675 { 676 struct rtw89_ser *ser = &rtwdev->ser; 677 678 memset(ser, 0, sizeof(*ser)); 679 INIT_LIST_HEAD(&ser->msg_q); 680 ser->state = SER_IDLE_ST; 681 ser->st_tbl = ser_st_tbl; 682 ser->ev_tbl = ser_ev_tbl; 683 684 bitmap_zero(ser->flags, RTW89_NUM_OF_SER_FLAGS); 685 spin_lock_init(&ser->msg_q_lock); 686 INIT_WORK(&ser->ser_hdl_work, rtw89_ser_hdl_work); 687 INIT_DELAYED_WORK(&ser->ser_alarm_work, rtw89_ser_alarm_work); 688 return 0; 689 } 690 691 int rtw89_ser_deinit(struct rtw89_dev *rtwdev) 692 { 693 struct rtw89_ser *ser = (struct rtw89_ser *)&rtwdev->ser; 694 695 set_bit(RTW89_SER_DRV_STOP_RUN, ser->flags); 696 cancel_delayed_work_sync(&ser->ser_alarm_work); 697 cancel_work_sync(&ser->ser_hdl_work); 698 clear_bit(RTW89_SER_DRV_STOP_RUN, ser->flags); 699 return 0; 700 } 701 702 void rtw89_ser_recfg_done(struct rtw89_dev *rtwdev) 703 { 704 ser_send_msg(&rtwdev->ser, SER_EV_L2_RECFG_DONE); 705 } 706 707 int rtw89_ser_notify(struct rtw89_dev *rtwdev, u32 err) 708 { 709 u8 event = SER_EV_NONE; 710 711 rtw89_info(rtwdev, "SER catches error: 0x%x\n", err); 712 713 switch (err) { 714 case MAC_AX_ERR_L1_ERR_DMAC: 715 case MAC_AX_ERR_L0_PROMOTE_TO_L1: 716 event = SER_EV_L1_RESET; /* M1 */ 717 break; 718 case MAC_AX_ERR_L1_RESET_DISABLE_DMAC_DONE: 719 event = SER_EV_DO_RECOVERY; /* M3 */ 720 break; 721 case MAC_AX_ERR_L1_RESET_RECOVERY_DONE: 722 event = SER_EV_MAC_RESET_DONE; /* M5 */ 723 break; 724 case MAC_AX_ERR_L0_ERR_CMAC0: 725 case MAC_AX_ERR_L0_ERR_CMAC1: 726 case MAC_AX_ERR_L0_RESET_DONE: 727 event = SER_EV_L0_RESET; 728 break; 729 default: 730 if (err == MAC_AX_ERR_L1_PROMOTE_TO_L2 || 731 (err >= MAC_AX_ERR_L2_ERR_AH_DMA && 732 err <= MAC_AX_GET_ERR_MAX)) 733 event = SER_EV_L2_RESET; 734 break; 735 } 736 737 if (event == SER_EV_NONE) { 738 rtw89_warn(rtwdev, "SER cannot recognize error: 0x%x\n", err); 739 return -EINVAL; 740 } 741 742 ser_send_msg(&rtwdev->ser, event); 743 return 0; 744 } 745 EXPORT_SYMBOL(rtw89_ser_notify); 746