1 /* 2 * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/moduleparam.h> 18 #include <linux/if_arp.h> 19 #include <linux/etherdevice.h> 20 21 #include "wil6210.h" 22 #include "txrx.h" 23 #include "wmi.h" 24 #include "boot_loader.h" 25 26 #define WAIT_FOR_HALP_VOTE_MS 100 27 #define WAIT_FOR_SCAN_ABORT_MS 1000 28 29 bool debug_fw; /* = false; */ 30 module_param(debug_fw, bool, 0444); 31 MODULE_PARM_DESC(debug_fw, " do not perform card reset. For FW debug"); 32 33 static u8 oob_mode; 34 module_param(oob_mode, byte, 0444); 35 MODULE_PARM_DESC(oob_mode, 36 " enable out of the box (OOB) mode in FW, for diagnostics and certification"); 37 38 bool no_fw_recovery; 39 module_param(no_fw_recovery, bool, 0644); 40 MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery"); 41 42 /* if not set via modparam, will be set to default value of 1/8 of 43 * rx ring size during init flow 44 */ 45 unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT; 46 module_param(rx_ring_overflow_thrsh, ushort, 0444); 47 MODULE_PARM_DESC(rx_ring_overflow_thrsh, 48 " RX ring overflow threshold in descriptors."); 49 50 /* We allow allocation of more than 1 page buffers to support large packets. 51 * It is suboptimal behavior performance wise in case MTU above page size. 52 */ 53 unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - WIL_MAX_MPDU_OVERHEAD; 54 static int mtu_max_set(const char *val, const struct kernel_param *kp) 55 { 56 int ret; 57 58 /* sets mtu_max directly. no need to restore it in case of 59 * illegal value since we assume this will fail insmod 60 */ 61 ret = param_set_uint(val, kp); 62 if (ret) 63 return ret; 64 65 if (mtu_max < 68 || mtu_max > WIL_MAX_ETH_MTU) 66 ret = -EINVAL; 67 68 return ret; 69 } 70 71 static const struct kernel_param_ops mtu_max_ops = { 72 .set = mtu_max_set, 73 .get = param_get_uint, 74 }; 75 76 module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, 0444); 77 MODULE_PARM_DESC(mtu_max, " Max MTU value."); 78 79 static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT; 80 static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT; 81 static uint bcast_ring_order = WIL_BCAST_RING_SIZE_ORDER_DEFAULT; 82 83 static int ring_order_set(const char *val, const struct kernel_param *kp) 84 { 85 int ret; 86 uint x; 87 88 ret = kstrtouint(val, 0, &x); 89 if (ret) 90 return ret; 91 92 if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX)) 93 return -EINVAL; 94 95 *((uint *)kp->arg) = x; 96 97 return 0; 98 } 99 100 static const struct kernel_param_ops ring_order_ops = { 101 .set = ring_order_set, 102 .get = param_get_uint, 103 }; 104 105 module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, 0444); 106 MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order"); 107 module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, 0444); 108 MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order"); 109 module_param_cb(bcast_ring_order, &ring_order_ops, &bcast_ring_order, 0444); 110 MODULE_PARM_DESC(bcast_ring_order, " Bcast ring order; size = 1 << order"); 111 112 #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */ 113 #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ 114 115 /* 116 * Due to a hardware issue, 117 * one has to read/write to/from NIC in 32-bit chunks; 118 * regular memcpy_fromio and siblings will 119 * not work on 64-bit platform - it uses 64-bit transactions 120 * 121 * Force 32-bit transactions to enable NIC on 64-bit platforms 122 * 123 * To avoid byte swap on big endian host, __raw_{read|write}l 124 * should be used - {read|write}l would swap bytes to provide 125 * little endian on PCI value in host endianness. 126 */ 127 void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, 128 size_t count) 129 { 130 u32 *d = dst; 131 const volatile u32 __iomem *s = src; 132 133 for (; count >= 4; count -= 4) 134 *d++ = __raw_readl(s++); 135 136 if (unlikely(count)) { 137 /* count can be 1..3 */ 138 u32 tmp = __raw_readl(s); 139 140 memcpy(d, &tmp, count); 141 } 142 } 143 144 void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, 145 size_t count) 146 { 147 volatile u32 __iomem *d = dst; 148 const u32 *s = src; 149 150 for (; count >= 4; count -= 4) 151 __raw_writel(*s++, d++); 152 153 if (unlikely(count)) { 154 /* count can be 1..3 */ 155 u32 tmp = 0; 156 157 memcpy(&tmp, s, count); 158 __raw_writel(tmp, d); 159 } 160 } 161 162 static void wil_disconnect_cid(struct wil6210_priv *wil, int cid, 163 u16 reason_code, bool from_event) 164 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 165 { 166 uint i; 167 struct net_device *ndev = wil_to_ndev(wil); 168 struct wireless_dev *wdev = wil->wdev; 169 struct wil_sta_info *sta = &wil->sta[cid]; 170 171 might_sleep(); 172 wil_dbg_misc(wil, "disconnect_cid: CID %d, status %d\n", 173 cid, sta->status); 174 /* inform upper/lower layers */ 175 if (sta->status != wil_sta_unused) { 176 if (!from_event) { 177 bool del_sta = (wdev->iftype == NL80211_IFTYPE_AP) ? 178 disable_ap_sme : false; 179 wmi_disconnect_sta(wil, sta->addr, reason_code, 180 true, del_sta); 181 } 182 183 switch (wdev->iftype) { 184 case NL80211_IFTYPE_AP: 185 case NL80211_IFTYPE_P2P_GO: 186 /* AP-like interface */ 187 cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL); 188 break; 189 default: 190 break; 191 } 192 sta->status = wil_sta_unused; 193 } 194 /* reorder buffers */ 195 for (i = 0; i < WIL_STA_TID_NUM; i++) { 196 struct wil_tid_ampdu_rx *r; 197 198 spin_lock_bh(&sta->tid_rx_lock); 199 200 r = sta->tid_rx[i]; 201 sta->tid_rx[i] = NULL; 202 wil_tid_ampdu_rx_free(wil, r); 203 204 spin_unlock_bh(&sta->tid_rx_lock); 205 } 206 /* crypto context */ 207 memset(sta->tid_crypto_rx, 0, sizeof(sta->tid_crypto_rx)); 208 memset(&sta->group_crypto_rx, 0, sizeof(sta->group_crypto_rx)); 209 /* release vrings */ 210 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 211 if (wil->vring2cid_tid[i][0] == cid) 212 wil_vring_fini_tx(wil, i); 213 } 214 /* statistics */ 215 memset(&sta->stats, 0, sizeof(sta->stats)); 216 } 217 218 static bool wil_is_connected(struct wil6210_priv *wil) 219 { 220 int i; 221 222 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 223 if (wil->sta[i].status == wil_sta_connected) 224 return true; 225 } 226 227 return false; 228 } 229 230 static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 231 u16 reason_code, bool from_event) 232 { 233 int cid = -ENOENT; 234 struct net_device *ndev = wil_to_ndev(wil); 235 struct wireless_dev *wdev = wil->wdev; 236 237 if (unlikely(!ndev)) 238 return; 239 240 might_sleep(); 241 wil_info(wil, "bssid=%pM, reason=%d, ev%s\n", bssid, 242 reason_code, from_event ? "+" : "-"); 243 244 /* Cases are: 245 * - disconnect single STA, still connected 246 * - disconnect single STA, already disconnected 247 * - disconnect all 248 * 249 * For "disconnect all", there are 3 options: 250 * - bssid == NULL 251 * - bssid is broadcast address (ff:ff:ff:ff:ff:ff) 252 * - bssid is our MAC address 253 */ 254 if (bssid && !is_broadcast_ether_addr(bssid) && 255 !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) { 256 cid = wil_find_cid(wil, bssid); 257 wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n", 258 bssid, cid, reason_code); 259 if (cid >= 0) /* disconnect 1 peer */ 260 wil_disconnect_cid(wil, cid, reason_code, from_event); 261 } else { /* all */ 262 wil_dbg_misc(wil, "Disconnect all\n"); 263 for (cid = 0; cid < WIL6210_MAX_CID; cid++) 264 wil_disconnect_cid(wil, cid, reason_code, from_event); 265 } 266 267 /* link state */ 268 switch (wdev->iftype) { 269 case NL80211_IFTYPE_STATION: 270 case NL80211_IFTYPE_P2P_CLIENT: 271 wil_bcast_fini(wil); 272 wil_update_net_queues_bh(wil, NULL, true); 273 netif_carrier_off(ndev); 274 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); 275 276 if (test_bit(wil_status_fwconnected, wil->status)) { 277 clear_bit(wil_status_fwconnected, wil->status); 278 cfg80211_disconnected(ndev, reason_code, 279 NULL, 0, 280 wil->locally_generated_disc, 281 GFP_KERNEL); 282 wil->locally_generated_disc = false; 283 } else if (test_bit(wil_status_fwconnecting, wil->status)) { 284 cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, 285 WLAN_STATUS_UNSPECIFIED_FAILURE, 286 GFP_KERNEL); 287 wil->bss = NULL; 288 } 289 clear_bit(wil_status_fwconnecting, wil->status); 290 break; 291 case NL80211_IFTYPE_AP: 292 case NL80211_IFTYPE_P2P_GO: 293 if (!wil_is_connected(wil)) { 294 wil_update_net_queues_bh(wil, NULL, true); 295 clear_bit(wil_status_fwconnected, wil->status); 296 } else { 297 wil_update_net_queues_bh(wil, NULL, false); 298 } 299 break; 300 default: 301 break; 302 } 303 } 304 305 static void wil_disconnect_worker(struct work_struct *work) 306 { 307 struct wil6210_priv *wil = container_of(work, 308 struct wil6210_priv, disconnect_worker); 309 struct net_device *ndev = wil_to_ndev(wil); 310 int rc; 311 struct { 312 struct wmi_cmd_hdr wmi; 313 struct wmi_disconnect_event evt; 314 } __packed reply; 315 316 if (test_bit(wil_status_fwconnected, wil->status)) 317 /* connect succeeded after all */ 318 return; 319 320 if (!test_bit(wil_status_fwconnecting, wil->status)) 321 /* already disconnected */ 322 return; 323 324 rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0, 325 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 326 WIL6210_DISCONNECT_TO_MS); 327 if (rc) { 328 wil_err(wil, "disconnect error %d\n", rc); 329 return; 330 } 331 332 wil_update_net_queues_bh(wil, NULL, true); 333 netif_carrier_off(ndev); 334 cfg80211_connect_result(ndev, NULL, NULL, 0, NULL, 0, 335 WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); 336 clear_bit(wil_status_fwconnecting, wil->status); 337 } 338 339 static void wil_connect_timer_fn(struct timer_list *t) 340 { 341 struct wil6210_priv *wil = from_timer(wil, t, connect_timer); 342 bool q; 343 344 wil_err(wil, "Connect timeout detected, disconnect station\n"); 345 346 /* reschedule to thread context - disconnect won't 347 * run from atomic context. 348 * queue on wmi_wq to prevent race with connect event. 349 */ 350 q = queue_work(wil->wmi_wq, &wil->disconnect_worker); 351 wil_dbg_wmi(wil, "queue_work of disconnect_worker -> %d\n", q); 352 } 353 354 static void wil_scan_timer_fn(struct timer_list *t) 355 { 356 struct wil6210_priv *wil = from_timer(wil, t, scan_timer); 357 358 clear_bit(wil_status_fwready, wil->status); 359 wil_err(wil, "Scan timeout detected, start fw error recovery\n"); 360 wil_fw_error_recovery(wil); 361 } 362 363 static int wil_wait_for_recovery(struct wil6210_priv *wil) 364 { 365 if (wait_event_interruptible(wil->wq, wil->recovery_state != 366 fw_recovery_pending)) { 367 wil_err(wil, "Interrupt, canceling recovery\n"); 368 return -ERESTARTSYS; 369 } 370 if (wil->recovery_state != fw_recovery_running) { 371 wil_info(wil, "Recovery cancelled\n"); 372 return -EINTR; 373 } 374 wil_info(wil, "Proceed with recovery\n"); 375 return 0; 376 } 377 378 void wil_set_recovery_state(struct wil6210_priv *wil, int state) 379 { 380 wil_dbg_misc(wil, "set_recovery_state: %d -> %d\n", 381 wil->recovery_state, state); 382 383 wil->recovery_state = state; 384 wake_up_interruptible(&wil->wq); 385 } 386 387 bool wil_is_recovery_blocked(struct wil6210_priv *wil) 388 { 389 return no_fw_recovery && (wil->recovery_state == fw_recovery_pending); 390 } 391 392 static void wil_fw_error_worker(struct work_struct *work) 393 { 394 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 395 fw_error_worker); 396 struct wireless_dev *wdev = wil->wdev; 397 struct net_device *ndev = wil_to_ndev(wil); 398 399 wil_dbg_misc(wil, "fw error worker\n"); 400 401 if (!(ndev->flags & IFF_UP)) { 402 wil_info(wil, "No recovery - interface is down\n"); 403 return; 404 } 405 406 /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO 407 * passed since last recovery attempt 408 */ 409 if (time_is_after_jiffies(wil->last_fw_recovery + 410 WIL6210_FW_RECOVERY_TO)) 411 wil->recovery_count++; 412 else 413 wil->recovery_count = 1; /* fw was alive for a long time */ 414 415 if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) { 416 wil_err(wil, "too many recovery attempts (%d), giving up\n", 417 wil->recovery_count); 418 return; 419 } 420 421 wil->last_fw_recovery = jiffies; 422 423 wil_info(wil, "fw error recovery requested (try %d)...\n", 424 wil->recovery_count); 425 if (!no_fw_recovery) 426 wil->recovery_state = fw_recovery_running; 427 if (wil_wait_for_recovery(wil) != 0) 428 return; 429 430 mutex_lock(&wil->mutex); 431 switch (wdev->iftype) { 432 case NL80211_IFTYPE_STATION: 433 case NL80211_IFTYPE_P2P_CLIENT: 434 case NL80211_IFTYPE_MONITOR: 435 /* silent recovery, upper layers will see disconnect */ 436 __wil_down(wil); 437 __wil_up(wil); 438 break; 439 case NL80211_IFTYPE_AP: 440 case NL80211_IFTYPE_P2P_GO: 441 wil_info(wil, "No recovery for AP-like interface\n"); 442 /* recovery in these modes is done by upper layers */ 443 break; 444 default: 445 wil_err(wil, "No recovery - unknown interface type %d\n", 446 wdev->iftype); 447 break; 448 } 449 mutex_unlock(&wil->mutex); 450 } 451 452 static int wil_find_free_vring(struct wil6210_priv *wil) 453 { 454 int i; 455 456 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 457 if (!wil->vring_tx[i].va) 458 return i; 459 } 460 return -EINVAL; 461 } 462 463 int wil_tx_init(struct wil6210_priv *wil, int cid) 464 { 465 int rc = -EINVAL, ringid; 466 467 if (cid < 0) { 468 wil_err(wil, "No connection pending\n"); 469 goto out; 470 } 471 ringid = wil_find_free_vring(wil); 472 if (ringid < 0) { 473 wil_err(wil, "No free vring found\n"); 474 goto out; 475 } 476 477 wil_dbg_wmi(wil, "Configure for connection CID %d vring %d\n", 478 cid, ringid); 479 480 rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0); 481 if (rc) 482 wil_err(wil, "wil_vring_init_tx for CID %d vring %d failed\n", 483 cid, ringid); 484 485 out: 486 return rc; 487 } 488 489 int wil_bcast_init(struct wil6210_priv *wil) 490 { 491 int ri = wil->bcast_vring, rc; 492 493 if ((ri >= 0) && wil->vring_tx[ri].va) 494 return 0; 495 496 ri = wil_find_free_vring(wil); 497 if (ri < 0) 498 return ri; 499 500 wil->bcast_vring = ri; 501 rc = wil_vring_init_bcast(wil, ri, 1 << bcast_ring_order); 502 if (rc) 503 wil->bcast_vring = -1; 504 505 return rc; 506 } 507 508 void wil_bcast_fini(struct wil6210_priv *wil) 509 { 510 int ri = wil->bcast_vring; 511 512 if (ri < 0) 513 return; 514 515 wil->bcast_vring = -1; 516 wil_vring_fini_tx(wil, ri); 517 } 518 519 int wil_priv_init(struct wil6210_priv *wil) 520 { 521 uint i; 522 523 wil_dbg_misc(wil, "priv_init\n"); 524 525 memset(wil->sta, 0, sizeof(wil->sta)); 526 for (i = 0; i < WIL6210_MAX_CID; i++) 527 spin_lock_init(&wil->sta[i].tid_rx_lock); 528 529 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) 530 spin_lock_init(&wil->vring_tx_data[i].lock); 531 532 mutex_init(&wil->mutex); 533 mutex_init(&wil->wmi_mutex); 534 mutex_init(&wil->probe_client_mutex); 535 mutex_init(&wil->p2p_wdev_mutex); 536 mutex_init(&wil->halp.lock); 537 538 init_completion(&wil->wmi_ready); 539 init_completion(&wil->wmi_call); 540 init_completion(&wil->halp.comp); 541 542 wil->bcast_vring = -1; 543 timer_setup(&wil->connect_timer, wil_connect_timer_fn, 0); 544 timer_setup(&wil->scan_timer, wil_scan_timer_fn, 0); 545 timer_setup(&wil->p2p.discovery_timer, wil_p2p_discovery_timer_fn, 0); 546 547 INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker); 548 INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); 549 INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); 550 INIT_WORK(&wil->probe_client_worker, wil_probe_client_worker); 551 INIT_WORK(&wil->p2p.delayed_listen_work, wil_p2p_delayed_listen_work); 552 553 INIT_LIST_HEAD(&wil->pending_wmi_ev); 554 INIT_LIST_HEAD(&wil->probe_client_pending); 555 spin_lock_init(&wil->wmi_ev_lock); 556 spin_lock_init(&wil->net_queue_lock); 557 wil->net_queue_stopped = 1; 558 init_waitqueue_head(&wil->wq); 559 560 wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi"); 561 if (!wil->wmi_wq) 562 return -EAGAIN; 563 564 wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service"); 565 if (!wil->wq_service) 566 goto out_wmi_wq; 567 568 wil->last_fw_recovery = jiffies; 569 wil->tx_interframe_timeout = WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT; 570 wil->rx_interframe_timeout = WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT; 571 wil->tx_max_burst_duration = WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT; 572 wil->rx_max_burst_duration = WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT; 573 574 if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT) 575 rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT; 576 577 wil->ps_profile = WMI_PS_PROFILE_TYPE_DEFAULT; 578 579 wil->wakeup_trigger = WMI_WAKEUP_TRIGGER_UCAST | 580 WMI_WAKEUP_TRIGGER_BCAST; 581 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats)); 582 wil->vring_idle_trsh = 16; 583 584 return 0; 585 586 out_wmi_wq: 587 destroy_workqueue(wil->wmi_wq); 588 589 return -EAGAIN; 590 } 591 592 void wil6210_bus_request(struct wil6210_priv *wil, u32 kbps) 593 { 594 if (wil->platform_ops.bus_request) { 595 wil->bus_request_kbps = kbps; 596 wil->platform_ops.bus_request(wil->platform_handle, kbps); 597 } 598 } 599 600 /** 601 * wil6210_disconnect - disconnect one connection 602 * @wil: driver context 603 * @bssid: peer to disconnect, NULL to disconnect all 604 * @reason_code: Reason code for the Disassociation frame 605 * @from_event: whether is invoked from FW event handler 606 * 607 * Disconnect and release associated resources. If invoked not from the 608 * FW event handler, issue WMI command(s) to trigger MAC disconnect. 609 */ 610 void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 611 u16 reason_code, bool from_event) 612 { 613 wil_dbg_misc(wil, "disconnect\n"); 614 615 del_timer_sync(&wil->connect_timer); 616 _wil6210_disconnect(wil, bssid, reason_code, from_event); 617 } 618 619 void wil_priv_deinit(struct wil6210_priv *wil) 620 { 621 wil_dbg_misc(wil, "priv_deinit\n"); 622 623 wil_set_recovery_state(wil, fw_recovery_idle); 624 del_timer_sync(&wil->scan_timer); 625 del_timer_sync(&wil->p2p.discovery_timer); 626 cancel_work_sync(&wil->disconnect_worker); 627 cancel_work_sync(&wil->fw_error_worker); 628 cancel_work_sync(&wil->p2p.discovery_expired_work); 629 cancel_work_sync(&wil->p2p.delayed_listen_work); 630 mutex_lock(&wil->mutex); 631 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 632 mutex_unlock(&wil->mutex); 633 wmi_event_flush(wil); 634 wil_probe_client_flush(wil); 635 cancel_work_sync(&wil->probe_client_worker); 636 destroy_workqueue(wil->wq_service); 637 destroy_workqueue(wil->wmi_wq); 638 } 639 640 static inline void wil_halt_cpu(struct wil6210_priv *wil) 641 { 642 wil_w(wil, RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST); 643 wil_w(wil, RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST); 644 } 645 646 static inline void wil_release_cpu(struct wil6210_priv *wil) 647 { 648 /* Start CPU */ 649 wil_w(wil, RGF_USER_USER_CPU_0, 1); 650 } 651 652 static void wil_set_oob_mode(struct wil6210_priv *wil, u8 mode) 653 { 654 wil_info(wil, "oob_mode to %d\n", mode); 655 switch (mode) { 656 case 0: 657 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE | 658 BIT_USER_OOB_R2_MODE); 659 break; 660 case 1: 661 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE); 662 wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE); 663 break; 664 case 2: 665 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE); 666 wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE); 667 break; 668 default: 669 wil_err(wil, "invalid oob_mode: %d\n", mode); 670 } 671 } 672 673 static int wil_target_reset(struct wil6210_priv *wil) 674 { 675 int delay = 0; 676 u32 x, x1 = 0; 677 678 wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name); 679 680 /* Clear MAC link up */ 681 wil_s(wil, RGF_HP_CTRL, BIT(15)); 682 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD); 683 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); 684 685 wil_halt_cpu(wil); 686 687 /* clear all boot loader "ready" bits */ 688 wil_w(wil, RGF_USER_BL + 689 offsetof(struct bl_dedicated_registers_v0, boot_loader_ready), 0); 690 /* Clear Fw Download notification */ 691 wil_c(wil, RGF_USER_USAGE_6, BIT(0)); 692 693 wil_s(wil, RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); 694 /* XTAL stabilization should take about 3ms */ 695 usleep_range(5000, 7000); 696 x = wil_r(wil, RGF_CAF_PLL_LOCK_STATUS); 697 if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { 698 wil_err(wil, "Xtal stabilization timeout\n" 699 "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); 700 return -ETIME; 701 } 702 /* switch 10k to XTAL*/ 703 wil_c(wil, RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); 704 /* 40 MHz */ 705 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); 706 707 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); 708 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); 709 710 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000); 711 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F); 712 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x000000f0); 713 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00); 714 715 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0); 716 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0); 717 718 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); 719 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); 720 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); 721 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 722 723 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003); 724 /* reset A2 PCIE AHB */ 725 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 726 727 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 728 729 /* wait until device ready. typical time is 20..80 msec */ 730 do { 731 msleep(RST_DELAY); 732 x = wil_r(wil, RGF_USER_BL + 733 offsetof(struct bl_dedicated_registers_v0, 734 boot_loader_ready)); 735 if (x1 != x) { 736 wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", x1, x); 737 x1 = x; 738 } 739 if (delay++ > RST_COUNT) { 740 wil_err(wil, "Reset not completed, bl.ready 0x%08x\n", 741 x); 742 return -ETIME; 743 } 744 } while (x != BL_READY); 745 746 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); 747 748 /* enable fix for HW bug related to the SA/DA swap in AP Rx */ 749 wil_s(wil, RGF_DMA_OFUL_NID_0, BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN | 750 BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC); 751 752 wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY); 753 return 0; 754 } 755 756 static void wil_collect_fw_info(struct wil6210_priv *wil) 757 { 758 struct wiphy *wiphy = wil_to_wiphy(wil); 759 u8 retry_short; 760 int rc; 761 762 wil_refresh_fw_capabilities(wil); 763 764 rc = wmi_get_mgmt_retry(wil, &retry_short); 765 if (!rc) { 766 wiphy->retry_short = retry_short; 767 wil_dbg_misc(wil, "FW retry_short: %d\n", retry_short); 768 } 769 } 770 771 void wil_refresh_fw_capabilities(struct wil6210_priv *wil) 772 { 773 struct wiphy *wiphy = wil_to_wiphy(wil); 774 775 wil->keep_radio_on_during_sleep = 776 wil->platform_ops.keep_radio_on_during_sleep && 777 wil->platform_ops.keep_radio_on_during_sleep( 778 wil->platform_handle) && 779 test_bit(WMI_FW_CAPABILITY_D3_SUSPEND, wil->fw_capabilities); 780 781 wil_info(wil, "keep_radio_on_during_sleep (%d)\n", 782 wil->keep_radio_on_during_sleep); 783 784 if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities)) 785 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 786 else 787 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 788 } 789 790 void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) 791 { 792 le32_to_cpus(&r->base); 793 le16_to_cpus(&r->entry_size); 794 le16_to_cpus(&r->size); 795 le32_to_cpus(&r->tail); 796 le32_to_cpus(&r->head); 797 } 798 799 static int wil_get_bl_info(struct wil6210_priv *wil) 800 { 801 struct net_device *ndev = wil_to_ndev(wil); 802 struct wiphy *wiphy = wil_to_wiphy(wil); 803 union { 804 struct bl_dedicated_registers_v0 bl0; 805 struct bl_dedicated_registers_v1 bl1; 806 } bl; 807 u32 bl_ver; 808 u8 *mac; 809 u16 rf_status; 810 811 wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL), 812 sizeof(bl)); 813 bl_ver = le32_to_cpu(bl.bl0.boot_loader_struct_version); 814 mac = bl.bl0.mac_address; 815 816 if (bl_ver == 0) { 817 le32_to_cpus(&bl.bl0.rf_type); 818 le32_to_cpus(&bl.bl0.baseband_type); 819 rf_status = 0; /* actually, unknown */ 820 wil_info(wil, 821 "Boot Loader struct v%d: MAC = %pM RF = 0x%08x bband = 0x%08x\n", 822 bl_ver, mac, 823 bl.bl0.rf_type, bl.bl0.baseband_type); 824 wil_info(wil, "Boot Loader build unknown for struct v0\n"); 825 } else { 826 le16_to_cpus(&bl.bl1.rf_type); 827 rf_status = le16_to_cpu(bl.bl1.rf_status); 828 le32_to_cpus(&bl.bl1.baseband_type); 829 le16_to_cpus(&bl.bl1.bl_version_subminor); 830 le16_to_cpus(&bl.bl1.bl_version_build); 831 wil_info(wil, 832 "Boot Loader struct v%d: MAC = %pM RF = 0x%04x (status 0x%04x) bband = 0x%08x\n", 833 bl_ver, mac, 834 bl.bl1.rf_type, rf_status, 835 bl.bl1.baseband_type); 836 wil_info(wil, "Boot Loader build %d.%d.%d.%d\n", 837 bl.bl1.bl_version_major, bl.bl1.bl_version_minor, 838 bl.bl1.bl_version_subminor, bl.bl1.bl_version_build); 839 } 840 841 if (!is_valid_ether_addr(mac)) { 842 wil_err(wil, "BL: Invalid MAC %pM\n", mac); 843 return -EINVAL; 844 } 845 846 ether_addr_copy(ndev->perm_addr, mac); 847 ether_addr_copy(wiphy->perm_addr, mac); 848 if (!is_valid_ether_addr(ndev->dev_addr)) 849 ether_addr_copy(ndev->dev_addr, mac); 850 851 if (rf_status) {/* bad RF cable? */ 852 wil_err(wil, "RF communication error 0x%04x", 853 rf_status); 854 return -EAGAIN; 855 } 856 857 return 0; 858 } 859 860 static void wil_bl_crash_info(struct wil6210_priv *wil, bool is_err) 861 { 862 u32 bl_assert_code, bl_assert_blink, bl_magic_number; 863 u32 bl_ver = wil_r(wil, RGF_USER_BL + 864 offsetof(struct bl_dedicated_registers_v0, 865 boot_loader_struct_version)); 866 867 if (bl_ver < 2) 868 return; 869 870 bl_assert_code = wil_r(wil, RGF_USER_BL + 871 offsetof(struct bl_dedicated_registers_v1, 872 bl_assert_code)); 873 bl_assert_blink = wil_r(wil, RGF_USER_BL + 874 offsetof(struct bl_dedicated_registers_v1, 875 bl_assert_blink)); 876 bl_magic_number = wil_r(wil, RGF_USER_BL + 877 offsetof(struct bl_dedicated_registers_v1, 878 bl_magic_number)); 879 880 if (is_err) { 881 wil_err(wil, 882 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n", 883 bl_assert_code, bl_assert_blink, bl_magic_number); 884 } else { 885 wil_dbg_misc(wil, 886 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n", 887 bl_assert_code, bl_assert_blink, bl_magic_number); 888 } 889 } 890 891 static int wil_wait_for_fw_ready(struct wil6210_priv *wil) 892 { 893 ulong to = msecs_to_jiffies(1000); 894 ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); 895 896 if (0 == left) { 897 wil_err(wil, "Firmware not ready\n"); 898 return -ETIME; 899 } else { 900 wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n", 901 jiffies_to_msecs(to-left), wil->hw_version); 902 } 903 return 0; 904 } 905 906 void wil_abort_scan(struct wil6210_priv *wil, bool sync) 907 { 908 int rc; 909 struct cfg80211_scan_info info = { 910 .aborted = true, 911 }; 912 913 lockdep_assert_held(&wil->p2p_wdev_mutex); 914 915 if (!wil->scan_request) 916 return; 917 918 wil_dbg_misc(wil, "Abort scan_request 0x%p\n", wil->scan_request); 919 del_timer_sync(&wil->scan_timer); 920 mutex_unlock(&wil->p2p_wdev_mutex); 921 rc = wmi_abort_scan(wil); 922 if (!rc && sync) 923 wait_event_interruptible_timeout(wil->wq, !wil->scan_request, 924 msecs_to_jiffies( 925 WAIT_FOR_SCAN_ABORT_MS)); 926 927 mutex_lock(&wil->p2p_wdev_mutex); 928 if (wil->scan_request) { 929 cfg80211_scan_done(wil->scan_request, &info); 930 wil->scan_request = NULL; 931 } 932 } 933 934 int wil_ps_update(struct wil6210_priv *wil, enum wmi_ps_profile_type ps_profile) 935 { 936 int rc; 937 938 if (!test_bit(WMI_FW_CAPABILITY_PS_CONFIG, wil->fw_capabilities)) { 939 wil_err(wil, "set_power_mgmt not supported\n"); 940 return -EOPNOTSUPP; 941 } 942 943 rc = wmi_ps_dev_profile_cfg(wil, ps_profile); 944 if (rc) 945 wil_err(wil, "wmi_ps_dev_profile_cfg failed (%d)\n", rc); 946 else 947 wil->ps_profile = ps_profile; 948 949 return rc; 950 } 951 952 static void wil_pre_fw_config(struct wil6210_priv *wil) 953 { 954 /* Mark FW as loaded from host */ 955 wil_s(wil, RGF_USER_USAGE_6, 1); 956 957 /* clear any interrupts which on-card-firmware 958 * may have set 959 */ 960 wil6210_clear_irq(wil); 961 /* CAF_ICR - clear and mask */ 962 /* it is W1C, clear by writing back same value */ 963 wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0); 964 wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0); 965 /* clear PAL_UNIT_ICR (potential D0->D3 leftover) */ 966 wil_s(wil, RGF_PAL_UNIT_ICR + offsetof(struct RGF_ICR, ICR), 0); 967 968 if (wil->fw_calib_result > 0) { 969 __le32 val = cpu_to_le32(wil->fw_calib_result | 970 (CALIB_RESULT_SIGNATURE << 8)); 971 wil_w(wil, RGF_USER_FW_CALIB_RESULT, (u32 __force)val); 972 } 973 } 974 975 /* 976 * We reset all the structures, and we reset the UMAC. 977 * After calling this routine, you're expected to reload 978 * the firmware. 979 */ 980 int wil_reset(struct wil6210_priv *wil, bool load_fw) 981 { 982 int rc; 983 984 wil_dbg_misc(wil, "reset\n"); 985 986 WARN_ON(!mutex_is_locked(&wil->mutex)); 987 WARN_ON(test_bit(wil_status_napi_en, wil->status)); 988 989 if (debug_fw) { 990 static const u8 mac[ETH_ALEN] = { 991 0x00, 0xde, 0xad, 0x12, 0x34, 0x56, 992 }; 993 struct net_device *ndev = wil_to_ndev(wil); 994 995 ether_addr_copy(ndev->perm_addr, mac); 996 ether_addr_copy(ndev->dev_addr, ndev->perm_addr); 997 return 0; 998 } 999 1000 if (wil->hw_version == HW_VER_UNKNOWN) 1001 return -ENODEV; 1002 1003 if (wil->platform_ops.notify) { 1004 rc = wil->platform_ops.notify(wil->platform_handle, 1005 WIL_PLATFORM_EVT_PRE_RESET); 1006 if (rc) 1007 wil_err(wil, "PRE_RESET platform notify failed, rc %d\n", 1008 rc); 1009 } 1010 1011 set_bit(wil_status_resetting, wil->status); 1012 1013 cancel_work_sync(&wil->disconnect_worker); 1014 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 1015 wil_bcast_fini(wil); 1016 1017 /* Disable device led before reset*/ 1018 wmi_led_cfg(wil, false); 1019 1020 mutex_lock(&wil->p2p_wdev_mutex); 1021 wil_abort_scan(wil, false); 1022 mutex_unlock(&wil->p2p_wdev_mutex); 1023 1024 /* prevent NAPI from being scheduled and prevent wmi commands */ 1025 mutex_lock(&wil->wmi_mutex); 1026 bitmap_zero(wil->status, wil_status_last); 1027 mutex_unlock(&wil->wmi_mutex); 1028 1029 wil_mask_irq(wil); 1030 1031 wmi_event_flush(wil); 1032 1033 flush_workqueue(wil->wq_service); 1034 flush_workqueue(wil->wmi_wq); 1035 1036 wil_bl_crash_info(wil, false); 1037 wil_disable_irq(wil); 1038 rc = wil_target_reset(wil); 1039 wil6210_clear_irq(wil); 1040 wil_enable_irq(wil); 1041 wil_rx_fini(wil); 1042 if (rc) { 1043 wil_bl_crash_info(wil, true); 1044 return rc; 1045 } 1046 1047 rc = wil_get_bl_info(wil); 1048 if (rc == -EAGAIN && !load_fw) /* ignore RF error if not going up */ 1049 rc = 0; 1050 if (rc) 1051 return rc; 1052 1053 wil_set_oob_mode(wil, oob_mode); 1054 if (load_fw) { 1055 wil_info(wil, "Use firmware <%s> + board <%s>\n", 1056 wil->wil_fw_name, WIL_BOARD_FILE_NAME); 1057 1058 wil_halt_cpu(wil); 1059 memset(wil->fw_version, 0, sizeof(wil->fw_version)); 1060 /* Loading f/w from the file */ 1061 rc = wil_request_firmware(wil, wil->wil_fw_name, true); 1062 if (rc) 1063 return rc; 1064 rc = wil_request_firmware(wil, WIL_BOARD_FILE_NAME, true); 1065 if (rc) 1066 return rc; 1067 1068 wil_pre_fw_config(wil); 1069 wil_release_cpu(wil); 1070 } 1071 1072 /* init after reset */ 1073 wil->ap_isolate = 0; 1074 reinit_completion(&wil->wmi_ready); 1075 reinit_completion(&wil->wmi_call); 1076 reinit_completion(&wil->halp.comp); 1077 1078 if (load_fw) { 1079 wil_configure_interrupt_moderation(wil); 1080 wil_unmask_irq(wil); 1081 1082 /* we just started MAC, wait for FW ready */ 1083 rc = wil_wait_for_fw_ready(wil); 1084 if (rc) 1085 return rc; 1086 1087 /* check FW is responsive */ 1088 rc = wmi_echo(wil); 1089 if (rc) { 1090 wil_err(wil, "wmi_echo failed, rc %d\n", rc); 1091 return rc; 1092 } 1093 1094 wil_collect_fw_info(wil); 1095 1096 if (wil->ps_profile != WMI_PS_PROFILE_TYPE_DEFAULT) 1097 wil_ps_update(wil, wil->ps_profile); 1098 1099 if (wil->platform_ops.notify) { 1100 rc = wil->platform_ops.notify(wil->platform_handle, 1101 WIL_PLATFORM_EVT_FW_RDY); 1102 if (rc) { 1103 wil_err(wil, "FW_RDY notify failed, rc %d\n", 1104 rc); 1105 rc = 0; 1106 } 1107 } 1108 } 1109 1110 return rc; 1111 } 1112 1113 void wil_fw_error_recovery(struct wil6210_priv *wil) 1114 { 1115 wil_dbg_misc(wil, "starting fw error recovery\n"); 1116 1117 if (test_bit(wil_status_resetting, wil->status)) { 1118 wil_info(wil, "Reset already in progress\n"); 1119 return; 1120 } 1121 1122 wil->recovery_state = fw_recovery_pending; 1123 schedule_work(&wil->fw_error_worker); 1124 } 1125 1126 int __wil_up(struct wil6210_priv *wil) 1127 { 1128 struct net_device *ndev = wil_to_ndev(wil); 1129 struct wireless_dev *wdev = wil->wdev; 1130 int rc; 1131 1132 WARN_ON(!mutex_is_locked(&wil->mutex)); 1133 1134 rc = wil_reset(wil, true); 1135 if (rc) 1136 return rc; 1137 1138 /* Rx VRING. After MAC and beacon */ 1139 rc = wil_rx_init(wil, 1 << rx_ring_order); 1140 if (rc) 1141 return rc; 1142 1143 switch (wdev->iftype) { 1144 case NL80211_IFTYPE_STATION: 1145 wil_dbg_misc(wil, "type: STATION\n"); 1146 ndev->type = ARPHRD_ETHER; 1147 break; 1148 case NL80211_IFTYPE_AP: 1149 wil_dbg_misc(wil, "type: AP\n"); 1150 ndev->type = ARPHRD_ETHER; 1151 break; 1152 case NL80211_IFTYPE_P2P_CLIENT: 1153 wil_dbg_misc(wil, "type: P2P_CLIENT\n"); 1154 ndev->type = ARPHRD_ETHER; 1155 break; 1156 case NL80211_IFTYPE_P2P_GO: 1157 wil_dbg_misc(wil, "type: P2P_GO\n"); 1158 ndev->type = ARPHRD_ETHER; 1159 break; 1160 case NL80211_IFTYPE_MONITOR: 1161 wil_dbg_misc(wil, "type: Monitor\n"); 1162 ndev->type = ARPHRD_IEEE80211_RADIOTAP; 1163 /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ 1164 break; 1165 default: 1166 return -EOPNOTSUPP; 1167 } 1168 1169 /* MAC address - pre-requisite for other commands */ 1170 wmi_set_mac_address(wil, ndev->dev_addr); 1171 1172 wil_dbg_misc(wil, "NAPI enable\n"); 1173 napi_enable(&wil->napi_rx); 1174 napi_enable(&wil->napi_tx); 1175 set_bit(wil_status_napi_en, wil->status); 1176 1177 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); 1178 1179 return 0; 1180 } 1181 1182 int wil_up(struct wil6210_priv *wil) 1183 { 1184 int rc; 1185 1186 wil_dbg_misc(wil, "up\n"); 1187 1188 mutex_lock(&wil->mutex); 1189 rc = __wil_up(wil); 1190 mutex_unlock(&wil->mutex); 1191 1192 return rc; 1193 } 1194 1195 int __wil_down(struct wil6210_priv *wil) 1196 { 1197 WARN_ON(!mutex_is_locked(&wil->mutex)); 1198 1199 set_bit(wil_status_resetting, wil->status); 1200 1201 wil6210_bus_request(wil, 0); 1202 1203 wil_disable_irq(wil); 1204 if (test_and_clear_bit(wil_status_napi_en, wil->status)) { 1205 napi_disable(&wil->napi_rx); 1206 napi_disable(&wil->napi_tx); 1207 wil_dbg_misc(wil, "NAPI disable\n"); 1208 } 1209 wil_enable_irq(wil); 1210 1211 mutex_lock(&wil->p2p_wdev_mutex); 1212 wil_p2p_stop_radio_operations(wil); 1213 wil_abort_scan(wil, false); 1214 mutex_unlock(&wil->p2p_wdev_mutex); 1215 1216 wil_reset(wil, false); 1217 1218 return 0; 1219 } 1220 1221 int wil_down(struct wil6210_priv *wil) 1222 { 1223 int rc; 1224 1225 wil_dbg_misc(wil, "down\n"); 1226 1227 wil_set_recovery_state(wil, fw_recovery_idle); 1228 mutex_lock(&wil->mutex); 1229 rc = __wil_down(wil); 1230 mutex_unlock(&wil->mutex); 1231 1232 return rc; 1233 } 1234 1235 int wil_find_cid(struct wil6210_priv *wil, const u8 *mac) 1236 { 1237 int i; 1238 int rc = -ENOENT; 1239 1240 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1241 if ((wil->sta[i].status != wil_sta_unused) && 1242 ether_addr_equal(wil->sta[i].addr, mac)) { 1243 rc = i; 1244 break; 1245 } 1246 } 1247 1248 return rc; 1249 } 1250 1251 void wil_halp_vote(struct wil6210_priv *wil) 1252 { 1253 unsigned long rc; 1254 unsigned long to_jiffies = msecs_to_jiffies(WAIT_FOR_HALP_VOTE_MS); 1255 1256 mutex_lock(&wil->halp.lock); 1257 1258 wil_dbg_irq(wil, "halp_vote: start, HALP ref_cnt (%d)\n", 1259 wil->halp.ref_cnt); 1260 1261 if (++wil->halp.ref_cnt == 1) { 1262 reinit_completion(&wil->halp.comp); 1263 wil6210_set_halp(wil); 1264 rc = wait_for_completion_timeout(&wil->halp.comp, to_jiffies); 1265 if (!rc) { 1266 wil_err(wil, "HALP vote timed out\n"); 1267 /* Mask HALP as done in case the interrupt is raised */ 1268 wil6210_mask_halp(wil); 1269 } else { 1270 wil_dbg_irq(wil, 1271 "halp_vote: HALP vote completed after %d ms\n", 1272 jiffies_to_msecs(to_jiffies - rc)); 1273 } 1274 } 1275 1276 wil_dbg_irq(wil, "halp_vote: end, HALP ref_cnt (%d)\n", 1277 wil->halp.ref_cnt); 1278 1279 mutex_unlock(&wil->halp.lock); 1280 } 1281 1282 void wil_halp_unvote(struct wil6210_priv *wil) 1283 { 1284 WARN_ON(wil->halp.ref_cnt == 0); 1285 1286 mutex_lock(&wil->halp.lock); 1287 1288 wil_dbg_irq(wil, "halp_unvote: start, HALP ref_cnt (%d)\n", 1289 wil->halp.ref_cnt); 1290 1291 if (--wil->halp.ref_cnt == 0) { 1292 wil6210_clear_halp(wil); 1293 wil_dbg_irq(wil, "HALP unvote\n"); 1294 } 1295 1296 wil_dbg_irq(wil, "halp_unvote:end, HALP ref_cnt (%d)\n", 1297 wil->halp.ref_cnt); 1298 1299 mutex_unlock(&wil->halp.lock); 1300 } 1301