1 /* 2 * Copyright (c) 2012-2016 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/etherdevice.h> 19 #include <linux/if_arp.h> 20 21 #include "wil6210.h" 22 #include "txrx.h" 23 #include "wmi.h" 24 #include "trace.h" 25 26 static uint max_assoc_sta = WIL6210_MAX_CID; 27 module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR); 28 MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP"); 29 30 int agg_wsize; /* = 0; */ 31 module_param(agg_wsize, int, S_IRUGO | S_IWUSR); 32 MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;" 33 " 0 - use default; < 0 - don't auto-establish"); 34 35 u8 led_id = WIL_LED_INVALID_ID; 36 module_param(led_id, byte, S_IRUGO); 37 MODULE_PARM_DESC(led_id, 38 " 60G device led enablement. Set the led ID (0-2) to enable"); 39 40 /** 41 * WMI event receiving - theory of operations 42 * 43 * When firmware about to report WMI event, it fills memory area 44 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for 45 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler. 46 * 47 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the 48 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up 49 * and handles events within the @wmi_event_worker. Every event get detached 50 * from list, processed and deleted. 51 * 52 * Purpose for this mechanism is to release IRQ thread; otherwise, 53 * if WMI event handling involves another WMI command flow, this 2-nd flow 54 * won't be completed because of blocked IRQ thread. 55 */ 56 57 /** 58 * Addressing - theory of operations 59 * 60 * There are several buses present on the WIL6210 card. 61 * Same memory areas are visible at different address on 62 * the different busses. There are 3 main bus masters: 63 * - MAC CPU (ucode) 64 * - User CPU (firmware) 65 * - AHB (host) 66 * 67 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing 68 * AHB addresses starting from 0x880000 69 * 70 * Internally, firmware uses addresses that allows faster access but 71 * are invisible from the host. To read from these addresses, alternative 72 * AHB address must be used. 73 * 74 * Memory mapping 75 * Linker address PCI/Host address 76 * 0x880000 .. 0xa80000 2Mb BAR0 77 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM 78 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH 79 */ 80 81 /** 82 * @fw_mapping provides memory remapping table 83 * 84 * array size should be in sync with the declaration in the wil6210.h 85 */ 86 const struct fw_map fw_mapping[] = { 87 /* FW code RAM 256k */ 88 {0x000000, 0x040000, 0x8c0000, "fw_code", true}, 89 /* FW data RAM 32k */ 90 {0x800000, 0x808000, 0x900000, "fw_data", true}, 91 /* periph data 128k */ 92 {0x840000, 0x860000, 0x908000, "fw_peri", true}, 93 /* various RGF 40k */ 94 {0x880000, 0x88a000, 0x880000, "rgf", true}, 95 /* AGC table 4k */ 96 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl", true}, 97 /* Pcie_ext_rgf 4k */ 98 {0x88b000, 0x88c000, 0x88b000, "rgf_ext", true}, 99 /* mac_ext_rgf 512b */ 100 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext", true}, 101 /* upper area 548k */ 102 {0x8c0000, 0x949000, 0x8c0000, "upper", true}, 103 /* UCODE areas - accessible by debugfs blobs but not by 104 * wmi_addr_remap. UCODE areas MUST be added AFTER FW areas! 105 */ 106 /* ucode code RAM 128k */ 107 {0x000000, 0x020000, 0x920000, "uc_code", false}, 108 /* ucode data RAM 16k */ 109 {0x800000, 0x804000, 0x940000, "uc_data", false}, 110 }; 111 112 struct blink_on_off_time led_blink_time[] = { 113 {WIL_LED_BLINK_ON_SLOW_MS, WIL_LED_BLINK_OFF_SLOW_MS}, 114 {WIL_LED_BLINK_ON_MED_MS, WIL_LED_BLINK_OFF_MED_MS}, 115 {WIL_LED_BLINK_ON_FAST_MS, WIL_LED_BLINK_OFF_FAST_MS}, 116 }; 117 118 u8 led_polarity = LED_POLARITY_LOW_ACTIVE; 119 120 /** 121 * return AHB address for given firmware internal (linker) address 122 * @x - internal address 123 * If address have no valid AHB mapping, return 0 124 */ 125 static u32 wmi_addr_remap(u32 x) 126 { 127 uint i; 128 129 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 130 if (fw_mapping[i].fw && 131 ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))) 132 return x + fw_mapping[i].host - fw_mapping[i].from; 133 } 134 135 return 0; 136 } 137 138 /** 139 * Check address validity for WMI buffer; remap if needed 140 * @ptr - internal (linker) fw/ucode address 141 * 142 * Valid buffer should be DWORD aligned 143 * 144 * return address for accessing buffer from the host; 145 * if buffer is not valid, return NULL. 146 */ 147 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_) 148 { 149 u32 off; 150 u32 ptr = le32_to_cpu(ptr_); 151 152 if (ptr % 4) 153 return NULL; 154 155 ptr = wmi_addr_remap(ptr); 156 if (ptr < WIL6210_FW_HOST_OFF) 157 return NULL; 158 159 off = HOSTADDR(ptr); 160 if (off > WIL6210_MEM_SIZE - 4) 161 return NULL; 162 163 return wil->csr + off; 164 } 165 166 /** 167 * Check address validity 168 */ 169 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr) 170 { 171 u32 off; 172 173 if (ptr % 4) 174 return NULL; 175 176 if (ptr < WIL6210_FW_HOST_OFF) 177 return NULL; 178 179 off = HOSTADDR(ptr); 180 if (off > WIL6210_MEM_SIZE - 4) 181 return NULL; 182 183 return wil->csr + off; 184 } 185 186 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, 187 struct wil6210_mbox_hdr *hdr) 188 { 189 void __iomem *src = wmi_buffer(wil, ptr); 190 191 if (!src) 192 return -EINVAL; 193 194 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr)); 195 196 return 0; 197 } 198 199 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 200 { 201 struct { 202 struct wil6210_mbox_hdr hdr; 203 struct wmi_cmd_hdr wmi; 204 } __packed cmd = { 205 .hdr = { 206 .type = WIL_MBOX_HDR_TYPE_WMI, 207 .flags = 0, 208 .len = cpu_to_le16(sizeof(cmd.wmi) + len), 209 }, 210 .wmi = { 211 .mid = 0, 212 .command_id = cpu_to_le16(cmdid), 213 }, 214 }; 215 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx; 216 struct wil6210_mbox_ring_desc d_head; 217 u32 next_head; 218 void __iomem *dst; 219 void __iomem *head = wmi_addr(wil, r->head); 220 uint retry; 221 int rc = 0; 222 223 if (sizeof(cmd) + len > r->entry_size) { 224 wil_err(wil, "WMI size too large: %d bytes, max is %d\n", 225 (int)(sizeof(cmd) + len), r->entry_size); 226 return -ERANGE; 227 } 228 229 might_sleep(); 230 231 if (!test_bit(wil_status_fwready, wil->status)) { 232 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 233 return -EAGAIN; 234 } 235 236 if (!head) { 237 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head); 238 return -EINVAL; 239 } 240 241 wil_halp_vote(wil); 242 243 /* read Tx head till it is not busy */ 244 for (retry = 5; retry > 0; retry--) { 245 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head)); 246 if (d_head.sync == 0) 247 break; 248 msleep(20); 249 } 250 if (d_head.sync != 0) { 251 wil_err(wil, "WMI head busy\n"); 252 rc = -EBUSY; 253 goto out; 254 } 255 /* next head */ 256 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size); 257 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head); 258 /* wait till FW finish with previous command */ 259 for (retry = 5; retry > 0; retry--) { 260 if (!test_bit(wil_status_fwready, wil->status)) { 261 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 262 rc = -EAGAIN; 263 goto out; 264 } 265 r->tail = wil_r(wil, RGF_MBOX + 266 offsetof(struct wil6210_mbox_ctl, tx.tail)); 267 if (next_head != r->tail) 268 break; 269 msleep(20); 270 } 271 if (next_head == r->tail) { 272 wil_err(wil, "WMI ring full\n"); 273 rc = -EBUSY; 274 goto out; 275 } 276 dst = wmi_buffer(wil, d_head.addr); 277 if (!dst) { 278 wil_err(wil, "invalid WMI buffer: 0x%08x\n", 279 le32_to_cpu(d_head.addr)); 280 rc = -EAGAIN; 281 goto out; 282 } 283 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); 284 /* set command */ 285 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len); 286 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, 287 sizeof(cmd), true); 288 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, 289 len, true); 290 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); 291 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); 292 /* mark entry as full */ 293 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1); 294 /* advance next ptr */ 295 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head), 296 r->head = next_head); 297 298 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 299 300 /* interrupt to FW */ 301 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS), 302 SW_INT_MBOX); 303 304 out: 305 wil_halp_unvote(wil); 306 return rc; 307 } 308 309 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 310 { 311 int rc; 312 313 mutex_lock(&wil->wmi_mutex); 314 rc = __wmi_send(wil, cmdid, buf, len); 315 mutex_unlock(&wil->wmi_mutex); 316 317 return rc; 318 } 319 320 /*=== Event handlers ===*/ 321 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 322 { 323 struct wireless_dev *wdev = wil->wdev; 324 struct wmi_ready_event *evt = d; 325 326 wil->n_mids = evt->numof_additional_mids; 327 328 wil_info(wil, "FW ver. %s(SW %d); MAC %pM; %d MID's\n", 329 wil->fw_version, le32_to_cpu(evt->sw_version), 330 evt->mac, wil->n_mids); 331 /* ignore MAC address, we already have it from the boot loader */ 332 strlcpy(wdev->wiphy->fw_version, wil->fw_version, 333 sizeof(wdev->wiphy->fw_version)); 334 335 wil_set_recovery_state(wil, fw_recovery_idle); 336 set_bit(wil_status_fwready, wil->status); 337 /* let the reset sequence continue */ 338 complete(&wil->wmi_ready); 339 } 340 341 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 342 { 343 struct wmi_rx_mgmt_packet_event *data = d; 344 struct wiphy *wiphy = wil_to_wiphy(wil); 345 struct ieee80211_mgmt *rx_mgmt_frame = 346 (struct ieee80211_mgmt *)data->payload; 347 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload); 348 int ch_no; 349 u32 freq; 350 struct ieee80211_channel *channel; 351 s32 signal; 352 __le16 fc; 353 u32 d_len; 354 u16 d_status; 355 356 if (flen < 0) { 357 wil_err(wil, "MGMT Rx: short event, len %d\n", len); 358 return; 359 } 360 361 d_len = le32_to_cpu(data->info.len); 362 if (d_len != flen) { 363 wil_err(wil, 364 "MGMT Rx: length mismatch, d_len %d should be %d\n", 365 d_len, flen); 366 return; 367 } 368 369 ch_no = data->info.channel + 1; 370 freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ); 371 channel = ieee80211_get_channel(wiphy, freq); 372 signal = data->info.sqi; 373 d_status = le16_to_cpu(data->info.status); 374 fc = rx_mgmt_frame->frame_control; 375 376 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n", 377 data->info.channel, data->info.mcs, data->info.snr, 378 data->info.sqi); 379 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 380 le16_to_cpu(fc)); 381 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 382 data->info.qid, data->info.mid, data->info.cid); 383 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, 384 d_len, true); 385 386 if (!channel) { 387 wil_err(wil, "Frame on unsupported channel\n"); 388 return; 389 } 390 391 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 392 struct cfg80211_bss *bss; 393 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 394 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 395 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 396 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 397 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 398 u.beacon.variable); 399 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 400 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 401 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 402 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 403 ie_len, true); 404 405 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 406 407 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 408 d_len, signal, GFP_KERNEL); 409 if (bss) { 410 wil_dbg_wmi(wil, "Added BSS %pM\n", 411 rx_mgmt_frame->bssid); 412 cfg80211_put_bss(wiphy, bss); 413 } else { 414 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 415 } 416 } else { 417 mutex_lock(&wil->p2p_wdev_mutex); 418 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal, 419 (void *)rx_mgmt_frame, d_len, 0); 420 mutex_unlock(&wil->p2p_wdev_mutex); 421 } 422 } 423 424 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 425 { 426 struct wmi_tx_mgmt_packet_event *data = d; 427 struct ieee80211_mgmt *mgmt_frame = 428 (struct ieee80211_mgmt *)data->payload; 429 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload); 430 431 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame, 432 flen, true); 433 } 434 435 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 436 void *d, int len) 437 { 438 mutex_lock(&wil->p2p_wdev_mutex); 439 if (wil->scan_request) { 440 struct wmi_scan_complete_event *data = d; 441 int status = le32_to_cpu(data->status); 442 struct cfg80211_scan_info info = { 443 .aborted = ((status != WMI_SCAN_SUCCESS) && 444 (status != WMI_SCAN_ABORT_REJECTED)), 445 }; 446 447 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", status); 448 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 449 wil->scan_request, info.aborted); 450 del_timer_sync(&wil->scan_timer); 451 cfg80211_scan_done(wil->scan_request, &info); 452 wil->radio_wdev = wil->wdev; 453 wil->scan_request = NULL; 454 wake_up_interruptible(&wil->wq); 455 if (wil->p2p.pending_listen_wdev) { 456 wil_dbg_misc(wil, "Scheduling delayed listen\n"); 457 schedule_work(&wil->p2p.delayed_listen_work); 458 } 459 } else { 460 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 461 } 462 mutex_unlock(&wil->p2p_wdev_mutex); 463 } 464 465 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 466 { 467 struct net_device *ndev = wil_to_ndev(wil); 468 struct wireless_dev *wdev = wil->wdev; 469 struct wmi_connect_event *evt = d; 470 int ch; /* channel number */ 471 struct station_info sinfo; 472 u8 *assoc_req_ie, *assoc_resp_ie; 473 size_t assoc_req_ielen, assoc_resp_ielen; 474 /* capinfo(u16) + listen_interval(u16) + IEs */ 475 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 476 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 477 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 478 int rc; 479 480 if (len < sizeof(*evt)) { 481 wil_err(wil, "Connect event too short : %d bytes\n", len); 482 return; 483 } 484 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 485 evt->assoc_resp_len) { 486 wil_err(wil, 487 "Connect event corrupted : %d != %d + %d + %d + %d\n", 488 len, (int)sizeof(*evt), evt->beacon_ie_len, 489 evt->assoc_req_len, evt->assoc_resp_len); 490 return; 491 } 492 if (evt->cid >= WIL6210_MAX_CID) { 493 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 494 return; 495 } 496 497 ch = evt->channel + 1; 498 wil_info(wil, "Connect %pM channel [%d] cid %d\n", 499 evt->bssid, ch, evt->cid); 500 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 501 evt->assoc_info, len - sizeof(*evt), true); 502 503 /* figure out IE's */ 504 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 505 assoc_req_ie_offset]; 506 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 507 if (evt->assoc_req_len <= assoc_req_ie_offset) { 508 assoc_req_ie = NULL; 509 assoc_req_ielen = 0; 510 } 511 512 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 513 evt->assoc_req_len + 514 assoc_resp_ie_offset]; 515 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 516 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 517 assoc_resp_ie = NULL; 518 assoc_resp_ielen = 0; 519 } 520 521 mutex_lock(&wil->mutex); 522 if (test_bit(wil_status_resetting, wil->status) || 523 !test_bit(wil_status_fwready, wil->status)) { 524 wil_err(wil, "status_resetting, cancel connect event, CID %d\n", 525 evt->cid); 526 mutex_unlock(&wil->mutex); 527 /* no need for cleanup, wil_reset will do that */ 528 return; 529 } 530 531 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 532 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 533 if (!test_bit(wil_status_fwconnecting, wil->status)) { 534 wil_err(wil, "Not in connecting state\n"); 535 mutex_unlock(&wil->mutex); 536 return; 537 } 538 del_timer_sync(&wil->connect_timer); 539 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 540 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 541 if (wil->sta[evt->cid].status != wil_sta_unused) { 542 wil_err(wil, "%s: AP: Invalid status %d for CID %d\n", 543 __func__, wil->sta[evt->cid].status, evt->cid); 544 mutex_unlock(&wil->mutex); 545 return; 546 } 547 } 548 549 /* FIXME FW can transmit only ucast frames to peer */ 550 /* FIXME real ring_id instead of hard coded 0 */ 551 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 552 wil->sta[evt->cid].status = wil_sta_conn_pending; 553 554 rc = wil_tx_init(wil, evt->cid); 555 if (rc) { 556 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n", 557 __func__, evt->cid, rc); 558 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr, 559 WLAN_REASON_UNSPECIFIED, false); 560 } else { 561 wil_info(wil, "%s: successful connection to CID %d\n", 562 __func__, evt->cid); 563 } 564 565 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 566 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 567 if (rc) { 568 netif_carrier_off(ndev); 569 wil_err(wil, 570 "%s: cfg80211_connect_result with failure\n", 571 __func__); 572 cfg80211_connect_result(ndev, evt->bssid, NULL, 0, 573 NULL, 0, 574 WLAN_STATUS_UNSPECIFIED_FAILURE, 575 GFP_KERNEL); 576 goto out; 577 } else { 578 cfg80211_connect_result(ndev, evt->bssid, 579 assoc_req_ie, assoc_req_ielen, 580 assoc_resp_ie, assoc_resp_ielen, 581 WLAN_STATUS_SUCCESS, 582 GFP_KERNEL); 583 } 584 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 585 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 586 if (rc) 587 goto out; 588 589 memset(&sinfo, 0, sizeof(sinfo)); 590 591 sinfo.generation = wil->sinfo_gen++; 592 593 if (assoc_req_ie) { 594 sinfo.assoc_req_ies = assoc_req_ie; 595 sinfo.assoc_req_ies_len = assoc_req_ielen; 596 } 597 598 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 599 } else { 600 wil_err(wil, "%s: unhandled iftype %d for CID %d\n", 601 __func__, wdev->iftype, evt->cid); 602 goto out; 603 } 604 605 wil->sta[evt->cid].status = wil_sta_connected; 606 set_bit(wil_status_fwconnected, wil->status); 607 wil_update_net_queues_bh(wil, NULL, false); 608 609 out: 610 if (rc) 611 wil->sta[evt->cid].status = wil_sta_unused; 612 clear_bit(wil_status_fwconnecting, wil->status); 613 mutex_unlock(&wil->mutex); 614 } 615 616 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 617 void *d, int len) 618 { 619 struct wmi_disconnect_event *evt = d; 620 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 621 622 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 623 evt->bssid, reason_code, evt->disconnect_reason); 624 625 wil->sinfo_gen++; 626 627 mutex_lock(&wil->mutex); 628 wil6210_disconnect(wil, evt->bssid, reason_code, true); 629 mutex_unlock(&wil->mutex); 630 } 631 632 /* 633 * Firmware reports EAPOL frame using WME event. 634 * Reconstruct Ethernet frame and deliver it via normal Rx 635 */ 636 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 637 void *d, int len) 638 { 639 struct net_device *ndev = wil_to_ndev(wil); 640 struct wmi_eapol_rx_event *evt = d; 641 u16 eapol_len = le16_to_cpu(evt->eapol_len); 642 int sz = eapol_len + ETH_HLEN; 643 struct sk_buff *skb; 644 struct ethhdr *eth; 645 int cid; 646 struct wil_net_stats *stats = NULL; 647 648 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 649 evt->src_mac); 650 651 cid = wil_find_cid(wil, evt->src_mac); 652 if (cid >= 0) 653 stats = &wil->sta[cid].stats; 654 655 if (eapol_len > 196) { /* TODO: revisit size limit */ 656 wil_err(wil, "EAPOL too large\n"); 657 return; 658 } 659 660 skb = alloc_skb(sz, GFP_KERNEL); 661 if (!skb) { 662 wil_err(wil, "Failed to allocate skb\n"); 663 return; 664 } 665 666 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 667 ether_addr_copy(eth->h_dest, ndev->dev_addr); 668 ether_addr_copy(eth->h_source, evt->src_mac); 669 eth->h_proto = cpu_to_be16(ETH_P_PAE); 670 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 671 skb->protocol = eth_type_trans(skb, ndev); 672 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 673 ndev->stats.rx_packets++; 674 ndev->stats.rx_bytes += sz; 675 if (stats) { 676 stats->rx_packets++; 677 stats->rx_bytes += sz; 678 } 679 } else { 680 ndev->stats.rx_dropped++; 681 if (stats) 682 stats->rx_dropped++; 683 } 684 } 685 686 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 687 { 688 struct wmi_vring_en_event *evt = d; 689 u8 vri = evt->vring_index; 690 691 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 692 693 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 694 wil_err(wil, "Enable for invalid vring %d\n", vri); 695 return; 696 } 697 wil->vring_tx_data[vri].dot1x_open = true; 698 if (vri == wil->bcast_vring) /* no BA for bcast */ 699 return; 700 if (agg_wsize >= 0) 701 wil_addba_tx_request(wil, vri, agg_wsize); 702 } 703 704 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 705 int len) 706 { 707 struct wmi_ba_status_event *evt = d; 708 struct vring_tx_data *txdata; 709 710 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 711 evt->ringid, 712 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 713 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 714 evt->amsdu ? "+" : "-"); 715 716 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 717 wil_err(wil, "invalid ring id %d\n", evt->ringid); 718 return; 719 } 720 721 if (evt->status != WMI_BA_AGREED) { 722 evt->ba_timeout = 0; 723 evt->agg_wsize = 0; 724 evt->amsdu = 0; 725 } 726 727 txdata = &wil->vring_tx_data[evt->ringid]; 728 729 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 730 txdata->agg_wsize = evt->agg_wsize; 731 txdata->agg_amsdu = evt->amsdu; 732 txdata->addba_in_progress = false; 733 } 734 735 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 736 int len) 737 { 738 struct wmi_rcp_addba_req_event *evt = d; 739 740 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 741 evt->ba_param_set, evt->ba_timeout, 742 evt->ba_seq_ctrl); 743 } 744 745 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 746 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 747 { 748 struct wmi_delba_event *evt = d; 749 u8 cid, tid; 750 u16 reason = __le16_to_cpu(evt->reason); 751 struct wil_sta_info *sta; 752 struct wil_tid_ampdu_rx *r; 753 754 might_sleep(); 755 parse_cidxtid(evt->cidxtid, &cid, &tid); 756 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 757 cid, tid, 758 evt->from_initiator ? "originator" : "recipient", 759 reason); 760 if (!evt->from_initiator) { 761 int i; 762 /* find Tx vring it belongs to */ 763 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 764 if ((wil->vring2cid_tid[i][0] == cid) && 765 (wil->vring2cid_tid[i][1] == tid)) { 766 struct vring_tx_data *txdata = 767 &wil->vring_tx_data[i]; 768 769 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 770 txdata->agg_timeout = 0; 771 txdata->agg_wsize = 0; 772 txdata->addba_in_progress = false; 773 774 break; /* max. 1 matching ring */ 775 } 776 } 777 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 778 wil_err(wil, "DELBA: unable to find Tx vring\n"); 779 return; 780 } 781 782 sta = &wil->sta[cid]; 783 784 spin_lock_bh(&sta->tid_rx_lock); 785 786 r = sta->tid_rx[tid]; 787 sta->tid_rx[tid] = NULL; 788 wil_tid_ampdu_rx_free(wil, r); 789 790 spin_unlock_bh(&sta->tid_rx_lock); 791 } 792 793 /** 794 * Some events are ignored for purpose; and need not be interpreted as 795 * "unhandled events" 796 */ 797 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 798 { 799 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 800 } 801 802 static const struct { 803 int eventid; 804 void (*handler)(struct wil6210_priv *wil, int eventid, 805 void *data, int data_len); 806 } wmi_evt_handlers[] = { 807 {WMI_READY_EVENTID, wmi_evt_ready}, 808 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 809 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 810 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 811 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 812 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 813 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 814 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 815 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 816 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 817 {WMI_DELBA_EVENTID, wmi_evt_delba}, 818 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 819 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 820 }; 821 822 /* 823 * Run in IRQ context 824 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 825 * that will be eventually handled by the @wmi_event_worker in the thread 826 * context of thread "wil6210_wmi" 827 */ 828 void wmi_recv_cmd(struct wil6210_priv *wil) 829 { 830 struct wil6210_mbox_ring_desc d_tail; 831 struct wil6210_mbox_hdr hdr; 832 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 833 struct pending_wmi_event *evt; 834 u8 *cmd; 835 void __iomem *src; 836 ulong flags; 837 unsigned n; 838 unsigned int num_immed_reply = 0; 839 840 if (!test_bit(wil_status_mbox_ready, wil->status)) { 841 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 842 return; 843 } 844 845 for (n = 0;; n++) { 846 u16 len; 847 bool q; 848 bool immed_reply = false; 849 850 r->head = wil_r(wil, RGF_MBOX + 851 offsetof(struct wil6210_mbox_ctl, rx.head)); 852 if (r->tail == r->head) 853 break; 854 855 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 856 r->head, r->tail); 857 /* read cmd descriptor from tail */ 858 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 859 sizeof(struct wil6210_mbox_ring_desc)); 860 if (d_tail.sync == 0) { 861 wil_err(wil, "Mbox evt not owned by FW?\n"); 862 break; 863 } 864 865 /* read cmd header from descriptor */ 866 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 867 wil_err(wil, "Mbox evt at 0x%08x?\n", 868 le32_to_cpu(d_tail.addr)); 869 break; 870 } 871 len = le16_to_cpu(hdr.len); 872 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 873 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 874 hdr.flags); 875 876 /* read cmd buffer from descriptor */ 877 src = wmi_buffer(wil, d_tail.addr) + 878 sizeof(struct wil6210_mbox_hdr); 879 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 880 event.wmi) + len, 4), 881 GFP_KERNEL); 882 if (!evt) 883 break; 884 885 evt->event.hdr = hdr; 886 cmd = (void *)&evt->event.wmi; 887 wil_memcpy_fromio_32(cmd, src, len); 888 /* mark entry as empty */ 889 wil_w(wil, r->tail + 890 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 891 /* indicate */ 892 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 893 (len >= sizeof(struct wmi_cmd_hdr))) { 894 struct wmi_cmd_hdr *wmi = &evt->event.wmi; 895 u16 id = le16_to_cpu(wmi->command_id); 896 u32 tstamp = le32_to_cpu(wmi->fw_timestamp); 897 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 898 if (wil->reply_id && wil->reply_id == id) { 899 if (wil->reply_buf) { 900 memcpy(wil->reply_buf, wmi, 901 min(len, wil->reply_size)); 902 immed_reply = true; 903 } 904 } 905 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 906 907 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 908 id, wmi->mid, tstamp); 909 trace_wil6210_wmi_event(wmi, &wmi[1], 910 len - sizeof(*wmi)); 911 } 912 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 913 &evt->event.hdr, sizeof(hdr) + len, true); 914 915 /* advance tail */ 916 r->tail = r->base + ((r->tail - r->base + 917 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 918 wil_w(wil, RGF_MBOX + 919 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 920 921 if (immed_reply) { 922 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 923 __func__, wil->reply_id); 924 kfree(evt); 925 num_immed_reply++; 926 complete(&wil->wmi_call); 927 } else { 928 /* add to the pending list */ 929 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 930 list_add_tail(&evt->list, &wil->pending_wmi_ev); 931 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 932 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 933 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 934 } 935 } 936 /* normally, 1 event per IRQ should be processed */ 937 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__, 938 n - num_immed_reply, num_immed_reply); 939 } 940 941 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 942 u16 reply_id, void *reply, u8 reply_size, int to_msec) 943 { 944 int rc; 945 unsigned long remain; 946 947 mutex_lock(&wil->wmi_mutex); 948 949 spin_lock(&wil->wmi_ev_lock); 950 wil->reply_id = reply_id; 951 wil->reply_buf = reply; 952 wil->reply_size = reply_size; 953 spin_unlock(&wil->wmi_ev_lock); 954 955 rc = __wmi_send(wil, cmdid, buf, len); 956 if (rc) 957 goto out; 958 959 remain = wait_for_completion_timeout(&wil->wmi_call, 960 msecs_to_jiffies(to_msec)); 961 if (0 == remain) { 962 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 963 cmdid, reply_id, to_msec); 964 rc = -ETIME; 965 } else { 966 wil_dbg_wmi(wil, 967 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 968 cmdid, reply_id, 969 to_msec - jiffies_to_msecs(remain)); 970 } 971 972 out: 973 spin_lock(&wil->wmi_ev_lock); 974 wil->reply_id = 0; 975 wil->reply_buf = NULL; 976 wil->reply_size = 0; 977 spin_unlock(&wil->wmi_ev_lock); 978 979 mutex_unlock(&wil->wmi_mutex); 980 981 return rc; 982 } 983 984 int wmi_echo(struct wil6210_priv *wil) 985 { 986 struct wmi_echo_cmd cmd = { 987 .value = cpu_to_le32(0x12345678), 988 }; 989 990 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 991 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 992 } 993 994 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 995 { 996 struct wmi_set_mac_address_cmd cmd; 997 998 ether_addr_copy(cmd.mac, addr); 999 1000 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 1001 1002 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 1003 } 1004 1005 int wmi_led_cfg(struct wil6210_priv *wil, bool enable) 1006 { 1007 int rc = 0; 1008 struct wmi_led_cfg_cmd cmd = { 1009 .led_mode = enable, 1010 .id = led_id, 1011 .slow_blink_cfg.blink_on = 1012 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms), 1013 .slow_blink_cfg.blink_off = 1014 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms), 1015 .medium_blink_cfg.blink_on = 1016 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms), 1017 .medium_blink_cfg.blink_off = 1018 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms), 1019 .fast_blink_cfg.blink_on = 1020 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms), 1021 .fast_blink_cfg.blink_off = 1022 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms), 1023 .led_polarity = led_polarity, 1024 }; 1025 struct { 1026 struct wmi_cmd_hdr wmi; 1027 struct wmi_led_cfg_done_event evt; 1028 } __packed reply; 1029 1030 if (led_id == WIL_LED_INVALID_ID) 1031 goto out; 1032 1033 if (led_id > WIL_LED_MAX_ID) { 1034 wil_err(wil, "Invalid led id %d\n", led_id); 1035 rc = -EINVAL; 1036 goto out; 1037 } 1038 1039 wil_dbg_wmi(wil, 1040 "%s led %d\n", 1041 enable ? "enabling" : "disabling", led_id); 1042 1043 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd), 1044 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply), 1045 100); 1046 if (rc) 1047 goto out; 1048 1049 if (reply.evt.status) { 1050 wil_err(wil, "led %d cfg failed with status %d\n", 1051 led_id, le32_to_cpu(reply.evt.status)); 1052 rc = -EINVAL; 1053 } 1054 1055 out: 1056 return rc; 1057 } 1058 1059 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 1060 u8 chan, u8 hidden_ssid, u8 is_go) 1061 { 1062 int rc; 1063 1064 struct wmi_pcp_start_cmd cmd = { 1065 .bcon_interval = cpu_to_le16(bi), 1066 .network_type = wmi_nettype, 1067 .disable_sec_offload = 1, 1068 .channel = chan - 1, 1069 .pcp_max_assoc_sta = max_assoc_sta, 1070 .hidden_ssid = hidden_ssid, 1071 .is_go = is_go, 1072 }; 1073 struct { 1074 struct wmi_cmd_hdr wmi; 1075 struct wmi_pcp_started_event evt; 1076 } __packed reply; 1077 1078 if (!wil->privacy) 1079 cmd.disable_sec = 1; 1080 1081 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 1082 (cmd.pcp_max_assoc_sta <= 0)) { 1083 wil_info(wil, 1084 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 1085 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 1086 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 1087 } 1088 1089 /* 1090 * Processing time may be huge, in case of secure AP it takes about 1091 * 3500ms for FW to start AP 1092 */ 1093 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 1094 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 1095 if (rc) 1096 return rc; 1097 1098 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 1099 rc = -EINVAL; 1100 1101 if (wmi_nettype != WMI_NETTYPE_P2P) 1102 /* Don't fail due to error in the led configuration */ 1103 wmi_led_cfg(wil, true); 1104 1105 return rc; 1106 } 1107 1108 int wmi_pcp_stop(struct wil6210_priv *wil) 1109 { 1110 int rc; 1111 1112 rc = wmi_led_cfg(wil, false); 1113 if (rc) 1114 return rc; 1115 1116 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 1117 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 1118 } 1119 1120 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 1121 { 1122 struct wmi_set_ssid_cmd cmd = { 1123 .ssid_len = cpu_to_le32(ssid_len), 1124 }; 1125 1126 if (ssid_len > sizeof(cmd.ssid)) 1127 return -EINVAL; 1128 1129 memcpy(cmd.ssid, ssid, ssid_len); 1130 1131 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 1132 } 1133 1134 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 1135 { 1136 int rc; 1137 struct { 1138 struct wmi_cmd_hdr wmi; 1139 struct wmi_set_ssid_cmd cmd; 1140 } __packed reply; 1141 int len; /* reply.cmd.ssid_len in CPU order */ 1142 1143 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 1144 &reply, sizeof(reply), 20); 1145 if (rc) 1146 return rc; 1147 1148 len = le32_to_cpu(reply.cmd.ssid_len); 1149 if (len > sizeof(reply.cmd.ssid)) 1150 return -EINVAL; 1151 1152 *ssid_len = len; 1153 memcpy(ssid, reply.cmd.ssid, len); 1154 1155 return 0; 1156 } 1157 1158 int wmi_set_channel(struct wil6210_priv *wil, int channel) 1159 { 1160 struct wmi_set_pcp_channel_cmd cmd = { 1161 .channel = channel - 1, 1162 }; 1163 1164 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 1165 } 1166 1167 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 1168 { 1169 int rc; 1170 struct { 1171 struct wmi_cmd_hdr wmi; 1172 struct wmi_set_pcp_channel_cmd cmd; 1173 } __packed reply; 1174 1175 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 1176 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 1177 if (rc) 1178 return rc; 1179 1180 if (reply.cmd.channel > 3) 1181 return -EINVAL; 1182 1183 *channel = reply.cmd.channel + 1; 1184 1185 return 0; 1186 } 1187 1188 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi) 1189 { 1190 int rc; 1191 struct wmi_p2p_cfg_cmd cmd = { 1192 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER, 1193 .bcon_interval = cpu_to_le16(bi), 1194 .channel = channel - 1, 1195 }; 1196 struct { 1197 struct wmi_cmd_hdr wmi; 1198 struct wmi_p2p_cfg_done_event evt; 1199 } __packed reply; 1200 1201 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n"); 1202 1203 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd), 1204 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300); 1205 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1206 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status); 1207 rc = -EINVAL; 1208 } 1209 1210 return rc; 1211 } 1212 1213 int wmi_start_listen(struct wil6210_priv *wil) 1214 { 1215 int rc; 1216 struct { 1217 struct wmi_cmd_hdr wmi; 1218 struct wmi_listen_started_event evt; 1219 } __packed reply; 1220 1221 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n"); 1222 1223 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1224 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300); 1225 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1226 wil_err(wil, "device failed to start listen. status %d\n", 1227 reply.evt.status); 1228 rc = -EINVAL; 1229 } 1230 1231 return rc; 1232 } 1233 1234 int wmi_start_search(struct wil6210_priv *wil) 1235 { 1236 int rc; 1237 struct { 1238 struct wmi_cmd_hdr wmi; 1239 struct wmi_search_started_event evt; 1240 } __packed reply; 1241 1242 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n"); 1243 1244 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0, 1245 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300); 1246 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1247 wil_err(wil, "device failed to start search. status %d\n", 1248 reply.evt.status); 1249 rc = -EINVAL; 1250 } 1251 1252 return rc; 1253 } 1254 1255 int wmi_stop_discovery(struct wil6210_priv *wil) 1256 { 1257 int rc; 1258 1259 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n"); 1260 1261 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1262 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100); 1263 1264 if (rc) 1265 wil_err(wil, "Failed to stop discovery\n"); 1266 1267 return rc; 1268 } 1269 1270 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 1271 const void *mac_addr, int key_usage) 1272 { 1273 struct wmi_delete_cipher_key_cmd cmd = { 1274 .key_index = key_index, 1275 }; 1276 1277 if (mac_addr) 1278 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1279 1280 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1281 } 1282 1283 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1284 const void *mac_addr, int key_len, const void *key, 1285 int key_usage) 1286 { 1287 struct wmi_add_cipher_key_cmd cmd = { 1288 .key_index = key_index, 1289 .key_usage = key_usage, 1290 .key_len = key_len, 1291 }; 1292 1293 if (!key || (key_len > sizeof(cmd.key))) 1294 return -EINVAL; 1295 1296 memcpy(cmd.key, key, key_len); 1297 if (mac_addr) 1298 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1299 1300 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1301 } 1302 1303 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1304 { 1305 static const char *const names[] = { 1306 [WMI_FRAME_BEACON] = "BEACON", 1307 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1308 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1309 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1310 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1311 }; 1312 int rc; 1313 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1314 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1315 1316 if (!cmd) { 1317 rc = -ENOMEM; 1318 goto out; 1319 } 1320 if (!ie) 1321 ie_len = 0; 1322 1323 cmd->mgmt_frm_type = type; 1324 /* BUG: FW API define ieLen as u8. Will fix FW */ 1325 cmd->ie_len = cpu_to_le16(ie_len); 1326 memcpy(cmd->ie_info, ie, ie_len); 1327 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1328 kfree(cmd); 1329 out: 1330 if (rc) { 1331 const char *name = type < ARRAY_SIZE(names) ? 1332 names[type] : "??"; 1333 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1334 } 1335 1336 return rc; 1337 } 1338 1339 /** 1340 * wmi_rxon - turn radio on/off 1341 * @on: turn on if true, off otherwise 1342 * 1343 * Only switch radio. Channel should be set separately. 1344 * No timeout for rxon - radio turned on forever unless some other call 1345 * turns it off 1346 */ 1347 int wmi_rxon(struct wil6210_priv *wil, bool on) 1348 { 1349 int rc; 1350 struct { 1351 struct wmi_cmd_hdr wmi; 1352 struct wmi_listen_started_event evt; 1353 } __packed reply; 1354 1355 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1356 1357 if (on) { 1358 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1359 WMI_LISTEN_STARTED_EVENTID, 1360 &reply, sizeof(reply), 100); 1361 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1362 rc = -EINVAL; 1363 } else { 1364 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1365 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1366 } 1367 1368 return rc; 1369 } 1370 1371 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1372 { 1373 struct wireless_dev *wdev = wil->wdev; 1374 struct net_device *ndev = wil_to_ndev(wil); 1375 struct wmi_cfg_rx_chain_cmd cmd = { 1376 .action = WMI_RX_CHAIN_ADD, 1377 .rx_sw_ring = { 1378 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1379 .ring_mem_base = cpu_to_le64(vring->pa), 1380 .ring_size = cpu_to_le16(vring->size), 1381 }, 1382 .mid = 0, /* TODO - what is it? */ 1383 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1384 .reorder_type = WMI_RX_SW_REORDER, 1385 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1386 }; 1387 struct { 1388 struct wmi_cmd_hdr wmi; 1389 struct wmi_cfg_rx_chain_done_event evt; 1390 } __packed evt; 1391 int rc; 1392 1393 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1394 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1395 1396 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1397 if (ch) 1398 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1399 cmd.sniffer_cfg.phy_info_mode = 1400 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1401 cmd.sniffer_cfg.phy_support = 1402 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1403 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1404 } else { 1405 /* Initialize offload (in non-sniffer mode). 1406 * Linux IP stack always calculates IP checksum 1407 * HW always calculate TCP/UDP checksum 1408 */ 1409 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1410 } 1411 1412 if (rx_align_2) 1413 cmd.l2_802_3_offload_ctrl |= 1414 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1415 1416 /* typical time for secure PCP is 840ms */ 1417 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1418 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1419 if (rc) 1420 return rc; 1421 1422 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1423 1424 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1425 le32_to_cpu(evt.evt.status), vring->hwtail); 1426 1427 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1428 rc = -EINVAL; 1429 1430 return rc; 1431 } 1432 1433 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1434 { 1435 int rc; 1436 struct wmi_temp_sense_cmd cmd = { 1437 .measure_baseband_en = cpu_to_le32(!!t_bb), 1438 .measure_rf_en = cpu_to_le32(!!t_rf), 1439 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1440 }; 1441 struct { 1442 struct wmi_cmd_hdr wmi; 1443 struct wmi_temp_sense_done_event evt; 1444 } __packed reply; 1445 1446 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1447 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1448 if (rc) 1449 return rc; 1450 1451 if (t_bb) 1452 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1453 if (t_rf) 1454 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1455 1456 return 0; 1457 } 1458 1459 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason, 1460 bool full_disconnect) 1461 { 1462 int rc; 1463 u16 reason_code; 1464 struct wmi_disconnect_sta_cmd cmd = { 1465 .disconnect_reason = cpu_to_le16(reason), 1466 }; 1467 struct { 1468 struct wmi_cmd_hdr wmi; 1469 struct wmi_disconnect_event evt; 1470 } __packed reply; 1471 1472 ether_addr_copy(cmd.dst_mac, mac); 1473 1474 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1475 1476 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), 1477 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); 1478 /* failure to disconnect in reasonable time treated as FW error */ 1479 if (rc) { 1480 wil_fw_error_recovery(wil); 1481 return rc; 1482 } 1483 1484 if (full_disconnect) { 1485 /* call event handler manually after processing wmi_call, 1486 * to avoid deadlock - disconnect event handler acquires 1487 * wil->mutex while it is already held here 1488 */ 1489 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1490 1491 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1492 reply.evt.bssid, reason_code, 1493 reply.evt.disconnect_reason); 1494 1495 wil->sinfo_gen++; 1496 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1497 } 1498 return 0; 1499 } 1500 1501 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1502 { 1503 struct wmi_vring_ba_en_cmd cmd = { 1504 .ringid = ringid, 1505 .agg_max_wsize = size, 1506 .ba_timeout = cpu_to_le16(timeout), 1507 .amsdu = 0, 1508 }; 1509 1510 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1511 ringid, size, timeout); 1512 1513 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1514 } 1515 1516 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1517 { 1518 struct wmi_vring_ba_dis_cmd cmd = { 1519 .ringid = ringid, 1520 .reason = cpu_to_le16(reason), 1521 }; 1522 1523 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1524 ringid, reason); 1525 1526 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1527 } 1528 1529 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1530 { 1531 struct wmi_rcp_delba_cmd cmd = { 1532 .cidxtid = cidxtid, 1533 .reason = cpu_to_le16(reason), 1534 }; 1535 1536 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1537 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1538 1539 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1540 } 1541 1542 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1543 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1544 { 1545 int rc; 1546 struct wmi_rcp_addba_resp_cmd cmd = { 1547 .cidxtid = mk_cidxtid(cid, tid), 1548 .dialog_token = token, 1549 .status_code = cpu_to_le16(status), 1550 /* bit 0: A-MSDU supported 1551 * bit 1: policy (should be 0 for us) 1552 * bits 2..5: TID 1553 * bits 6..15: buffer size 1554 */ 1555 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1556 (agg_wsize << 6)), 1557 .ba_timeout = cpu_to_le16(timeout), 1558 }; 1559 struct { 1560 struct wmi_cmd_hdr wmi; 1561 struct wmi_rcp_addba_resp_sent_event evt; 1562 } __packed reply; 1563 1564 wil_dbg_wmi(wil, 1565 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1566 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1567 1568 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1569 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1570 100); 1571 if (rc) 1572 return rc; 1573 1574 if (reply.evt.status) { 1575 wil_err(wil, "ADDBA response failed with status %d\n", 1576 le16_to_cpu(reply.evt.status)); 1577 rc = -EINVAL; 1578 } 1579 1580 return rc; 1581 } 1582 1583 int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil, 1584 enum wmi_ps_profile_type ps_profile) 1585 { 1586 int rc; 1587 struct wmi_ps_dev_profile_cfg_cmd cmd = { 1588 .ps_profile = ps_profile, 1589 }; 1590 struct { 1591 struct wmi_cmd_hdr wmi; 1592 struct wmi_ps_dev_profile_cfg_event evt; 1593 } __packed reply; 1594 u32 status; 1595 1596 wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile); 1597 1598 reply.evt.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR); 1599 1600 rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, &cmd, sizeof(cmd), 1601 WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply), 1602 100); 1603 if (rc) 1604 return rc; 1605 1606 status = le32_to_cpu(reply.evt.status); 1607 1608 if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) { 1609 wil_err(wil, "ps dev profile cfg failed with status %d\n", 1610 status); 1611 rc = -EINVAL; 1612 } 1613 1614 return rc; 1615 } 1616 1617 int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short) 1618 { 1619 int rc; 1620 struct wmi_set_mgmt_retry_limit_cmd cmd = { 1621 .mgmt_retry_limit = retry_short, 1622 }; 1623 struct { 1624 struct wmi_cmd_hdr wmi; 1625 struct wmi_set_mgmt_retry_limit_event evt; 1626 } __packed reply; 1627 1628 wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short); 1629 1630 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1631 return -ENOTSUPP; 1632 1633 reply.evt.status = WMI_FW_STATUS_FAILURE; 1634 1635 rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, &cmd, sizeof(cmd), 1636 WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1637 100); 1638 if (rc) 1639 return rc; 1640 1641 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1642 wil_err(wil, "set mgmt retry limit failed with status %d\n", 1643 reply.evt.status); 1644 rc = -EINVAL; 1645 } 1646 1647 return rc; 1648 } 1649 1650 int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short) 1651 { 1652 int rc; 1653 struct { 1654 struct wmi_cmd_hdr wmi; 1655 struct wmi_get_mgmt_retry_limit_event evt; 1656 } __packed reply; 1657 1658 wil_dbg_wmi(wil, "getting mgmt retry short\n"); 1659 1660 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1661 return -ENOTSUPP; 1662 1663 reply.evt.mgmt_retry_limit = 0; 1664 rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, NULL, 0, 1665 WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1666 100); 1667 if (rc) 1668 return rc; 1669 1670 if (retry_short) 1671 *retry_short = reply.evt.mgmt_retry_limit; 1672 1673 return 0; 1674 } 1675 1676 int wmi_abort_scan(struct wil6210_priv *wil) 1677 { 1678 int rc; 1679 1680 wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n"); 1681 1682 rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, NULL, 0); 1683 if (rc) 1684 wil_err(wil, "Failed to abort scan (%d)\n", rc); 1685 1686 return rc; 1687 } 1688 1689 void wmi_event_flush(struct wil6210_priv *wil) 1690 { 1691 struct pending_wmi_event *evt, *t; 1692 1693 wil_dbg_wmi(wil, "%s()\n", __func__); 1694 1695 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1696 list_del(&evt->list); 1697 kfree(evt); 1698 } 1699 } 1700 1701 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1702 void *d, int len) 1703 { 1704 uint i; 1705 1706 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1707 if (wmi_evt_handlers[i].eventid == id) { 1708 wmi_evt_handlers[i].handler(wil, id, d, len); 1709 return true; 1710 } 1711 } 1712 1713 return false; 1714 } 1715 1716 static void wmi_event_handle(struct wil6210_priv *wil, 1717 struct wil6210_mbox_hdr *hdr) 1718 { 1719 u16 len = le16_to_cpu(hdr->len); 1720 1721 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1722 (len >= sizeof(struct wmi_cmd_hdr))) { 1723 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]); 1724 void *evt_data = (void *)(&wmi[1]); 1725 u16 id = le16_to_cpu(wmi->command_id); 1726 1727 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1728 id, wil->reply_id); 1729 /* check if someone waits for this event */ 1730 if (wil->reply_id && wil->reply_id == id) { 1731 WARN_ON(wil->reply_buf); 1732 wmi_evt_call_handler(wil, id, evt_data, 1733 len - sizeof(*wmi)); 1734 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 1735 __func__, id); 1736 complete(&wil->wmi_call); 1737 return; 1738 } 1739 /* unsolicited event */ 1740 /* search for handler */ 1741 if (!wmi_evt_call_handler(wil, id, evt_data, 1742 len - sizeof(*wmi))) { 1743 wil_info(wil, "Unhandled event 0x%04x\n", id); 1744 } 1745 } else { 1746 wil_err(wil, "Unknown event type\n"); 1747 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1748 hdr, sizeof(*hdr) + len, true); 1749 } 1750 } 1751 1752 /* 1753 * Retrieve next WMI event from the pending list 1754 */ 1755 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1756 { 1757 ulong flags; 1758 struct list_head *ret = NULL; 1759 1760 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1761 1762 if (!list_empty(&wil->pending_wmi_ev)) { 1763 ret = wil->pending_wmi_ev.next; 1764 list_del(ret); 1765 } 1766 1767 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1768 1769 return ret; 1770 } 1771 1772 /* 1773 * Handler for the WMI events 1774 */ 1775 void wmi_event_worker(struct work_struct *work) 1776 { 1777 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1778 wmi_event_worker); 1779 struct pending_wmi_event *evt; 1780 struct list_head *lh; 1781 1782 wil_dbg_wmi(wil, "Start %s\n", __func__); 1783 while ((lh = next_wmi_ev(wil)) != NULL) { 1784 evt = list_entry(lh, struct pending_wmi_event, list); 1785 wmi_event_handle(wil, &evt->event.hdr); 1786 kfree(evt); 1787 } 1788 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1789 } 1790