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/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, 0644); 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, 0644); 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, 0444); 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 aid %d\n", 499 evt->bssid, ch, evt->cid, evt->aid); 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, "AP: Invalid status %d for CID %d\n", 543 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, "config tx vring failed for CID %d, rc (%d)\n", 557 evt->cid, rc); 558 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr, 559 WLAN_REASON_UNSPECIFIED, false, false); 560 } else { 561 wil_info(wil, "successful connection to CID %d\n", evt->cid); 562 } 563 564 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 565 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 566 if (rc) { 567 netif_carrier_off(ndev); 568 wil_err(wil, "cfg80211_connect_result with failure\n"); 569 cfg80211_connect_result(ndev, evt->bssid, NULL, 0, 570 NULL, 0, 571 WLAN_STATUS_UNSPECIFIED_FAILURE, 572 GFP_KERNEL); 573 goto out; 574 } else { 575 cfg80211_connect_result(ndev, evt->bssid, 576 assoc_req_ie, assoc_req_ielen, 577 assoc_resp_ie, assoc_resp_ielen, 578 WLAN_STATUS_SUCCESS, 579 GFP_KERNEL); 580 } 581 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 582 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 583 if (rc) { 584 if (disable_ap_sme) 585 /* notify new_sta has failed */ 586 cfg80211_del_sta(ndev, evt->bssid, GFP_KERNEL); 587 goto out; 588 } 589 590 memset(&sinfo, 0, sizeof(sinfo)); 591 592 sinfo.generation = wil->sinfo_gen++; 593 594 if (assoc_req_ie) { 595 sinfo.assoc_req_ies = assoc_req_ie; 596 sinfo.assoc_req_ies_len = assoc_req_ielen; 597 } 598 599 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 600 } else { 601 wil_err(wil, "unhandled iftype %d for CID %d\n", wdev->iftype, 602 evt->cid); 603 goto out; 604 } 605 606 wil->sta[evt->cid].status = wil_sta_connected; 607 wil->sta[evt->cid].aid = evt->aid; 608 set_bit(wil_status_fwconnected, wil->status); 609 wil_update_net_queues_bh(wil, NULL, false); 610 611 out: 612 if (rc) 613 wil->sta[evt->cid].status = wil_sta_unused; 614 clear_bit(wil_status_fwconnecting, wil->status); 615 mutex_unlock(&wil->mutex); 616 } 617 618 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 619 void *d, int len) 620 { 621 struct wmi_disconnect_event *evt = d; 622 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 623 624 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 625 evt->bssid, reason_code, evt->disconnect_reason); 626 627 wil->sinfo_gen++; 628 629 mutex_lock(&wil->mutex); 630 wil6210_disconnect(wil, evt->bssid, reason_code, true); 631 mutex_unlock(&wil->mutex); 632 } 633 634 /* 635 * Firmware reports EAPOL frame using WME event. 636 * Reconstruct Ethernet frame and deliver it via normal Rx 637 */ 638 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 639 void *d, int len) 640 { 641 struct net_device *ndev = wil_to_ndev(wil); 642 struct wmi_eapol_rx_event *evt = d; 643 u16 eapol_len = le16_to_cpu(evt->eapol_len); 644 int sz = eapol_len + ETH_HLEN; 645 struct sk_buff *skb; 646 struct ethhdr *eth; 647 int cid; 648 struct wil_net_stats *stats = NULL; 649 650 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 651 evt->src_mac); 652 653 cid = wil_find_cid(wil, evt->src_mac); 654 if (cid >= 0) 655 stats = &wil->sta[cid].stats; 656 657 if (eapol_len > 196) { /* TODO: revisit size limit */ 658 wil_err(wil, "EAPOL too large\n"); 659 return; 660 } 661 662 skb = alloc_skb(sz, GFP_KERNEL); 663 if (!skb) { 664 wil_err(wil, "Failed to allocate skb\n"); 665 return; 666 } 667 668 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 669 ether_addr_copy(eth->h_dest, ndev->dev_addr); 670 ether_addr_copy(eth->h_source, evt->src_mac); 671 eth->h_proto = cpu_to_be16(ETH_P_PAE); 672 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 673 skb->protocol = eth_type_trans(skb, ndev); 674 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 675 ndev->stats.rx_packets++; 676 ndev->stats.rx_bytes += sz; 677 if (stats) { 678 stats->rx_packets++; 679 stats->rx_bytes += sz; 680 } 681 } else { 682 ndev->stats.rx_dropped++; 683 if (stats) 684 stats->rx_dropped++; 685 } 686 } 687 688 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 689 { 690 struct wmi_vring_en_event *evt = d; 691 u8 vri = evt->vring_index; 692 struct wireless_dev *wdev = wil_to_wdev(wil); 693 694 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 695 696 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 697 wil_err(wil, "Enable for invalid vring %d\n", vri); 698 return; 699 } 700 701 if (wdev->iftype != NL80211_IFTYPE_AP || !disable_ap_sme) 702 /* in AP mode with disable_ap_sme, this is done by 703 * wil_cfg80211_change_station() 704 */ 705 wil->vring_tx_data[vri].dot1x_open = true; 706 if (vri == wil->bcast_vring) /* no BA for bcast */ 707 return; 708 if (agg_wsize >= 0) 709 wil_addba_tx_request(wil, vri, agg_wsize); 710 } 711 712 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 713 int len) 714 { 715 struct wmi_ba_status_event *evt = d; 716 struct vring_tx_data *txdata; 717 718 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 719 evt->ringid, 720 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 721 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 722 evt->amsdu ? "+" : "-"); 723 724 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 725 wil_err(wil, "invalid ring id %d\n", evt->ringid); 726 return; 727 } 728 729 if (evt->status != WMI_BA_AGREED) { 730 evt->ba_timeout = 0; 731 evt->agg_wsize = 0; 732 evt->amsdu = 0; 733 } 734 735 txdata = &wil->vring_tx_data[evt->ringid]; 736 737 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 738 txdata->agg_wsize = evt->agg_wsize; 739 txdata->agg_amsdu = evt->amsdu; 740 txdata->addba_in_progress = false; 741 } 742 743 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 744 int len) 745 { 746 struct wmi_rcp_addba_req_event *evt = d; 747 748 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 749 evt->ba_param_set, evt->ba_timeout, 750 evt->ba_seq_ctrl); 751 } 752 753 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 754 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 755 { 756 struct wmi_delba_event *evt = d; 757 u8 cid, tid; 758 u16 reason = __le16_to_cpu(evt->reason); 759 struct wil_sta_info *sta; 760 struct wil_tid_ampdu_rx *r; 761 762 might_sleep(); 763 parse_cidxtid(evt->cidxtid, &cid, &tid); 764 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 765 cid, tid, 766 evt->from_initiator ? "originator" : "recipient", 767 reason); 768 if (!evt->from_initiator) { 769 int i; 770 /* find Tx vring it belongs to */ 771 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 772 if ((wil->vring2cid_tid[i][0] == cid) && 773 (wil->vring2cid_tid[i][1] == tid)) { 774 struct vring_tx_data *txdata = 775 &wil->vring_tx_data[i]; 776 777 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 778 txdata->agg_timeout = 0; 779 txdata->agg_wsize = 0; 780 txdata->addba_in_progress = false; 781 782 break; /* max. 1 matching ring */ 783 } 784 } 785 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 786 wil_err(wil, "DELBA: unable to find Tx vring\n"); 787 return; 788 } 789 790 sta = &wil->sta[cid]; 791 792 spin_lock_bh(&sta->tid_rx_lock); 793 794 r = sta->tid_rx[tid]; 795 sta->tid_rx[tid] = NULL; 796 wil_tid_ampdu_rx_free(wil, r); 797 798 spin_unlock_bh(&sta->tid_rx_lock); 799 } 800 801 /** 802 * Some events are ignored for purpose; and need not be interpreted as 803 * "unhandled events" 804 */ 805 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 806 { 807 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 808 } 809 810 static const struct { 811 int eventid; 812 void (*handler)(struct wil6210_priv *wil, int eventid, 813 void *data, int data_len); 814 } wmi_evt_handlers[] = { 815 {WMI_READY_EVENTID, wmi_evt_ready}, 816 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 817 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 818 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 819 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 820 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 821 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 822 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 823 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 824 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 825 {WMI_DELBA_EVENTID, wmi_evt_delba}, 826 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 827 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 828 }; 829 830 /* 831 * Run in IRQ context 832 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 833 * that will be eventually handled by the @wmi_event_worker in the thread 834 * context of thread "wil6210_wmi" 835 */ 836 void wmi_recv_cmd(struct wil6210_priv *wil) 837 { 838 struct wil6210_mbox_ring_desc d_tail; 839 struct wil6210_mbox_hdr hdr; 840 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 841 struct pending_wmi_event *evt; 842 u8 *cmd; 843 void __iomem *src; 844 ulong flags; 845 unsigned n; 846 unsigned int num_immed_reply = 0; 847 848 if (!test_bit(wil_status_mbox_ready, wil->status)) { 849 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 850 return; 851 } 852 853 for (n = 0;; n++) { 854 u16 len; 855 bool q; 856 bool immed_reply = false; 857 858 r->head = wil_r(wil, RGF_MBOX + 859 offsetof(struct wil6210_mbox_ctl, rx.head)); 860 if (r->tail == r->head) 861 break; 862 863 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 864 r->head, r->tail); 865 /* read cmd descriptor from tail */ 866 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 867 sizeof(struct wil6210_mbox_ring_desc)); 868 if (d_tail.sync == 0) { 869 wil_err(wil, "Mbox evt not owned by FW?\n"); 870 break; 871 } 872 873 /* read cmd header from descriptor */ 874 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 875 wil_err(wil, "Mbox evt at 0x%08x?\n", 876 le32_to_cpu(d_tail.addr)); 877 break; 878 } 879 len = le16_to_cpu(hdr.len); 880 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 881 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 882 hdr.flags); 883 884 /* read cmd buffer from descriptor */ 885 src = wmi_buffer(wil, d_tail.addr) + 886 sizeof(struct wil6210_mbox_hdr); 887 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 888 event.wmi) + len, 4), 889 GFP_KERNEL); 890 if (!evt) 891 break; 892 893 evt->event.hdr = hdr; 894 cmd = (void *)&evt->event.wmi; 895 wil_memcpy_fromio_32(cmd, src, len); 896 /* mark entry as empty */ 897 wil_w(wil, r->tail + 898 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 899 /* indicate */ 900 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 901 (len >= sizeof(struct wmi_cmd_hdr))) { 902 struct wmi_cmd_hdr *wmi = &evt->event.wmi; 903 u16 id = le16_to_cpu(wmi->command_id); 904 u32 tstamp = le32_to_cpu(wmi->fw_timestamp); 905 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 906 if (wil->reply_id && wil->reply_id == id) { 907 if (wil->reply_buf) { 908 memcpy(wil->reply_buf, wmi, 909 min(len, wil->reply_size)); 910 immed_reply = true; 911 } 912 } 913 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 914 915 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 916 id, wmi->mid, tstamp); 917 trace_wil6210_wmi_event(wmi, &wmi[1], 918 len - sizeof(*wmi)); 919 } 920 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 921 &evt->event.hdr, sizeof(hdr) + len, true); 922 923 /* advance tail */ 924 r->tail = r->base + ((r->tail - r->base + 925 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 926 wil_w(wil, RGF_MBOX + 927 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 928 929 if (immed_reply) { 930 wil_dbg_wmi(wil, "recv_cmd: Complete WMI 0x%04x\n", 931 wil->reply_id); 932 kfree(evt); 933 num_immed_reply++; 934 complete(&wil->wmi_call); 935 } else { 936 /* add to the pending list */ 937 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 938 list_add_tail(&evt->list, &wil->pending_wmi_ev); 939 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 940 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 941 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 942 } 943 } 944 /* normally, 1 event per IRQ should be processed */ 945 wil_dbg_wmi(wil, "recv_cmd: -> %d events queued, %d completed\n", 946 n - num_immed_reply, num_immed_reply); 947 } 948 949 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 950 u16 reply_id, void *reply, u8 reply_size, int to_msec) 951 { 952 int rc; 953 unsigned long remain; 954 955 mutex_lock(&wil->wmi_mutex); 956 957 spin_lock(&wil->wmi_ev_lock); 958 wil->reply_id = reply_id; 959 wil->reply_buf = reply; 960 wil->reply_size = reply_size; 961 reinit_completion(&wil->wmi_call); 962 spin_unlock(&wil->wmi_ev_lock); 963 964 rc = __wmi_send(wil, cmdid, buf, len); 965 if (rc) 966 goto out; 967 968 remain = wait_for_completion_timeout(&wil->wmi_call, 969 msecs_to_jiffies(to_msec)); 970 if (0 == remain) { 971 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 972 cmdid, reply_id, to_msec); 973 rc = -ETIME; 974 } else { 975 wil_dbg_wmi(wil, 976 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 977 cmdid, reply_id, 978 to_msec - jiffies_to_msecs(remain)); 979 } 980 981 out: 982 spin_lock(&wil->wmi_ev_lock); 983 wil->reply_id = 0; 984 wil->reply_buf = NULL; 985 wil->reply_size = 0; 986 spin_unlock(&wil->wmi_ev_lock); 987 988 mutex_unlock(&wil->wmi_mutex); 989 990 return rc; 991 } 992 993 int wmi_echo(struct wil6210_priv *wil) 994 { 995 struct wmi_echo_cmd cmd = { 996 .value = cpu_to_le32(0x12345678), 997 }; 998 999 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 1000 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 1001 } 1002 1003 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 1004 { 1005 struct wmi_set_mac_address_cmd cmd; 1006 1007 ether_addr_copy(cmd.mac, addr); 1008 1009 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 1010 1011 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 1012 } 1013 1014 int wmi_led_cfg(struct wil6210_priv *wil, bool enable) 1015 { 1016 int rc = 0; 1017 struct wmi_led_cfg_cmd cmd = { 1018 .led_mode = enable, 1019 .id = led_id, 1020 .slow_blink_cfg.blink_on = 1021 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms), 1022 .slow_blink_cfg.blink_off = 1023 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms), 1024 .medium_blink_cfg.blink_on = 1025 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms), 1026 .medium_blink_cfg.blink_off = 1027 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms), 1028 .fast_blink_cfg.blink_on = 1029 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms), 1030 .fast_blink_cfg.blink_off = 1031 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms), 1032 .led_polarity = led_polarity, 1033 }; 1034 struct { 1035 struct wmi_cmd_hdr wmi; 1036 struct wmi_led_cfg_done_event evt; 1037 } __packed reply; 1038 1039 if (led_id == WIL_LED_INVALID_ID) 1040 goto out; 1041 1042 if (led_id > WIL_LED_MAX_ID) { 1043 wil_err(wil, "Invalid led id %d\n", led_id); 1044 rc = -EINVAL; 1045 goto out; 1046 } 1047 1048 wil_dbg_wmi(wil, 1049 "%s led %d\n", 1050 enable ? "enabling" : "disabling", led_id); 1051 1052 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd), 1053 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply), 1054 100); 1055 if (rc) 1056 goto out; 1057 1058 if (reply.evt.status) { 1059 wil_err(wil, "led %d cfg failed with status %d\n", 1060 led_id, le32_to_cpu(reply.evt.status)); 1061 rc = -EINVAL; 1062 } 1063 1064 out: 1065 return rc; 1066 } 1067 1068 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 1069 u8 chan, u8 hidden_ssid, u8 is_go) 1070 { 1071 int rc; 1072 1073 struct wmi_pcp_start_cmd cmd = { 1074 .bcon_interval = cpu_to_le16(bi), 1075 .network_type = wmi_nettype, 1076 .disable_sec_offload = 1, 1077 .channel = chan - 1, 1078 .pcp_max_assoc_sta = max_assoc_sta, 1079 .hidden_ssid = hidden_ssid, 1080 .is_go = is_go, 1081 .disable_ap_sme = disable_ap_sme, 1082 .abft_len = wil->abft_len, 1083 }; 1084 struct { 1085 struct wmi_cmd_hdr wmi; 1086 struct wmi_pcp_started_event evt; 1087 } __packed reply; 1088 1089 if (!wil->privacy) 1090 cmd.disable_sec = 1; 1091 1092 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 1093 (cmd.pcp_max_assoc_sta <= 0)) { 1094 wil_info(wil, 1095 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 1096 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 1097 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 1098 } 1099 1100 if (disable_ap_sme && 1101 !test_bit(WMI_FW_CAPABILITY_DISABLE_AP_SME, 1102 wil->fw_capabilities)) { 1103 wil_err(wil, "disable_ap_sme not supported by FW\n"); 1104 return -EOPNOTSUPP; 1105 } 1106 1107 /* 1108 * Processing time may be huge, in case of secure AP it takes about 1109 * 3500ms for FW to start AP 1110 */ 1111 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 1112 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 1113 if (rc) 1114 return rc; 1115 1116 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 1117 rc = -EINVAL; 1118 1119 if (wmi_nettype != WMI_NETTYPE_P2P) 1120 /* Don't fail due to error in the led configuration */ 1121 wmi_led_cfg(wil, true); 1122 1123 return rc; 1124 } 1125 1126 int wmi_pcp_stop(struct wil6210_priv *wil) 1127 { 1128 int rc; 1129 1130 rc = wmi_led_cfg(wil, false); 1131 if (rc) 1132 return rc; 1133 1134 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 1135 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 1136 } 1137 1138 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 1139 { 1140 struct wmi_set_ssid_cmd cmd = { 1141 .ssid_len = cpu_to_le32(ssid_len), 1142 }; 1143 1144 if (ssid_len > sizeof(cmd.ssid)) 1145 return -EINVAL; 1146 1147 memcpy(cmd.ssid, ssid, ssid_len); 1148 1149 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 1150 } 1151 1152 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 1153 { 1154 int rc; 1155 struct { 1156 struct wmi_cmd_hdr wmi; 1157 struct wmi_set_ssid_cmd cmd; 1158 } __packed reply; 1159 int len; /* reply.cmd.ssid_len in CPU order */ 1160 1161 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 1162 &reply, sizeof(reply), 20); 1163 if (rc) 1164 return rc; 1165 1166 len = le32_to_cpu(reply.cmd.ssid_len); 1167 if (len > sizeof(reply.cmd.ssid)) 1168 return -EINVAL; 1169 1170 *ssid_len = len; 1171 memcpy(ssid, reply.cmd.ssid, len); 1172 1173 return 0; 1174 } 1175 1176 int wmi_set_channel(struct wil6210_priv *wil, int channel) 1177 { 1178 struct wmi_set_pcp_channel_cmd cmd = { 1179 .channel = channel - 1, 1180 }; 1181 1182 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 1183 } 1184 1185 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 1186 { 1187 int rc; 1188 struct { 1189 struct wmi_cmd_hdr wmi; 1190 struct wmi_set_pcp_channel_cmd cmd; 1191 } __packed reply; 1192 1193 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 1194 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 1195 if (rc) 1196 return rc; 1197 1198 if (reply.cmd.channel > 3) 1199 return -EINVAL; 1200 1201 *channel = reply.cmd.channel + 1; 1202 1203 return 0; 1204 } 1205 1206 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi) 1207 { 1208 int rc; 1209 struct wmi_p2p_cfg_cmd cmd = { 1210 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER, 1211 .bcon_interval = cpu_to_le16(bi), 1212 .channel = channel - 1, 1213 }; 1214 struct { 1215 struct wmi_cmd_hdr wmi; 1216 struct wmi_p2p_cfg_done_event evt; 1217 } __packed reply; 1218 1219 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n"); 1220 1221 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd), 1222 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300); 1223 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1224 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status); 1225 rc = -EINVAL; 1226 } 1227 1228 return rc; 1229 } 1230 1231 int wmi_start_listen(struct wil6210_priv *wil) 1232 { 1233 int rc; 1234 struct { 1235 struct wmi_cmd_hdr wmi; 1236 struct wmi_listen_started_event evt; 1237 } __packed reply; 1238 1239 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n"); 1240 1241 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1242 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300); 1243 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1244 wil_err(wil, "device failed to start listen. status %d\n", 1245 reply.evt.status); 1246 rc = -EINVAL; 1247 } 1248 1249 return rc; 1250 } 1251 1252 int wmi_start_search(struct wil6210_priv *wil) 1253 { 1254 int rc; 1255 struct { 1256 struct wmi_cmd_hdr wmi; 1257 struct wmi_search_started_event evt; 1258 } __packed reply; 1259 1260 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n"); 1261 1262 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0, 1263 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300); 1264 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1265 wil_err(wil, "device failed to start search. status %d\n", 1266 reply.evt.status); 1267 rc = -EINVAL; 1268 } 1269 1270 return rc; 1271 } 1272 1273 int wmi_stop_discovery(struct wil6210_priv *wil) 1274 { 1275 int rc; 1276 1277 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n"); 1278 1279 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1280 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100); 1281 1282 if (rc) 1283 wil_err(wil, "Failed to stop discovery\n"); 1284 1285 return rc; 1286 } 1287 1288 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 1289 const void *mac_addr, int key_usage) 1290 { 1291 struct wmi_delete_cipher_key_cmd cmd = { 1292 .key_index = key_index, 1293 }; 1294 1295 if (mac_addr) 1296 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1297 1298 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1299 } 1300 1301 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1302 const void *mac_addr, int key_len, const void *key, 1303 int key_usage) 1304 { 1305 struct wmi_add_cipher_key_cmd cmd = { 1306 .key_index = key_index, 1307 .key_usage = key_usage, 1308 .key_len = key_len, 1309 }; 1310 1311 if (!key || (key_len > sizeof(cmd.key))) 1312 return -EINVAL; 1313 1314 memcpy(cmd.key, key, key_len); 1315 if (mac_addr) 1316 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1317 1318 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1319 } 1320 1321 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1322 { 1323 static const char *const names[] = { 1324 [WMI_FRAME_BEACON] = "BEACON", 1325 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1326 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1327 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1328 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1329 }; 1330 int rc; 1331 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1332 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1333 1334 if (!cmd) { 1335 rc = -ENOMEM; 1336 goto out; 1337 } 1338 if (!ie) 1339 ie_len = 0; 1340 1341 cmd->mgmt_frm_type = type; 1342 /* BUG: FW API define ieLen as u8. Will fix FW */ 1343 cmd->ie_len = cpu_to_le16(ie_len); 1344 memcpy(cmd->ie_info, ie, ie_len); 1345 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1346 kfree(cmd); 1347 out: 1348 if (rc) { 1349 const char *name = type < ARRAY_SIZE(names) ? 1350 names[type] : "??"; 1351 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1352 } 1353 1354 return rc; 1355 } 1356 1357 /** 1358 * wmi_rxon - turn radio on/off 1359 * @on: turn on if true, off otherwise 1360 * 1361 * Only switch radio. Channel should be set separately. 1362 * No timeout for rxon - radio turned on forever unless some other call 1363 * turns it off 1364 */ 1365 int wmi_rxon(struct wil6210_priv *wil, bool on) 1366 { 1367 int rc; 1368 struct { 1369 struct wmi_cmd_hdr wmi; 1370 struct wmi_listen_started_event evt; 1371 } __packed reply; 1372 1373 wil_info(wil, "(%s)\n", on ? "on" : "off"); 1374 1375 if (on) { 1376 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1377 WMI_LISTEN_STARTED_EVENTID, 1378 &reply, sizeof(reply), 100); 1379 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1380 rc = -EINVAL; 1381 } else { 1382 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1383 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1384 } 1385 1386 return rc; 1387 } 1388 1389 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1390 { 1391 struct wireless_dev *wdev = wil->wdev; 1392 struct net_device *ndev = wil_to_ndev(wil); 1393 struct wmi_cfg_rx_chain_cmd cmd = { 1394 .action = WMI_RX_CHAIN_ADD, 1395 .rx_sw_ring = { 1396 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1397 .ring_mem_base = cpu_to_le64(vring->pa), 1398 .ring_size = cpu_to_le16(vring->size), 1399 }, 1400 .mid = 0, /* TODO - what is it? */ 1401 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1402 .reorder_type = WMI_RX_SW_REORDER, 1403 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1404 }; 1405 struct { 1406 struct wmi_cmd_hdr wmi; 1407 struct wmi_cfg_rx_chain_done_event evt; 1408 } __packed evt; 1409 int rc; 1410 1411 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1412 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1413 1414 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1415 if (ch) 1416 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1417 cmd.sniffer_cfg.phy_info_mode = 1418 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1419 cmd.sniffer_cfg.phy_support = 1420 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1421 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1422 } else { 1423 /* Initialize offload (in non-sniffer mode). 1424 * Linux IP stack always calculates IP checksum 1425 * HW always calculate TCP/UDP checksum 1426 */ 1427 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1428 } 1429 1430 if (rx_align_2) 1431 cmd.l2_802_3_offload_ctrl |= 1432 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1433 1434 /* typical time for secure PCP is 840ms */ 1435 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1436 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1437 if (rc) 1438 return rc; 1439 1440 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1441 1442 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1443 le32_to_cpu(evt.evt.status), vring->hwtail); 1444 1445 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1446 rc = -EINVAL; 1447 1448 return rc; 1449 } 1450 1451 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1452 { 1453 int rc; 1454 struct wmi_temp_sense_cmd cmd = { 1455 .measure_baseband_en = cpu_to_le32(!!t_bb), 1456 .measure_rf_en = cpu_to_le32(!!t_rf), 1457 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1458 }; 1459 struct { 1460 struct wmi_cmd_hdr wmi; 1461 struct wmi_temp_sense_done_event evt; 1462 } __packed reply; 1463 1464 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1465 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1466 if (rc) 1467 return rc; 1468 1469 if (t_bb) 1470 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1471 if (t_rf) 1472 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1473 1474 return 0; 1475 } 1476 1477 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, 1478 u16 reason, bool full_disconnect, bool del_sta) 1479 { 1480 int rc; 1481 u16 reason_code; 1482 struct wmi_disconnect_sta_cmd disc_sta_cmd = { 1483 .disconnect_reason = cpu_to_le16(reason), 1484 }; 1485 struct wmi_del_sta_cmd del_sta_cmd = { 1486 .disconnect_reason = cpu_to_le16(reason), 1487 }; 1488 struct { 1489 struct wmi_cmd_hdr wmi; 1490 struct wmi_disconnect_event evt; 1491 } __packed reply; 1492 1493 wil_dbg_wmi(wil, "disconnect_sta: (%pM, reason %d)\n", mac, reason); 1494 1495 if (del_sta) { 1496 ether_addr_copy(del_sta_cmd.dst_mac, mac); 1497 rc = wmi_call(wil, WMI_DEL_STA_CMDID, &del_sta_cmd, 1498 sizeof(del_sta_cmd), WMI_DISCONNECT_EVENTID, 1499 &reply, sizeof(reply), 1000); 1500 } else { 1501 ether_addr_copy(disc_sta_cmd.dst_mac, mac); 1502 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &disc_sta_cmd, 1503 sizeof(disc_sta_cmd), WMI_DISCONNECT_EVENTID, 1504 &reply, sizeof(reply), 1000); 1505 } 1506 /* failure to disconnect in reasonable time treated as FW error */ 1507 if (rc) { 1508 wil_fw_error_recovery(wil); 1509 return rc; 1510 } 1511 1512 if (full_disconnect) { 1513 /* call event handler manually after processing wmi_call, 1514 * to avoid deadlock - disconnect event handler acquires 1515 * wil->mutex while it is already held here 1516 */ 1517 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1518 1519 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1520 reply.evt.bssid, reason_code, 1521 reply.evt.disconnect_reason); 1522 1523 wil->sinfo_gen++; 1524 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1525 } 1526 return 0; 1527 } 1528 1529 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1530 { 1531 struct wmi_vring_ba_en_cmd cmd = { 1532 .ringid = ringid, 1533 .agg_max_wsize = size, 1534 .ba_timeout = cpu_to_le16(timeout), 1535 .amsdu = 0, 1536 }; 1537 1538 wil_dbg_wmi(wil, "addba: (ring %d size %d timeout %d)\n", ringid, size, 1539 timeout); 1540 1541 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1542 } 1543 1544 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1545 { 1546 struct wmi_vring_ba_dis_cmd cmd = { 1547 .ringid = ringid, 1548 .reason = cpu_to_le16(reason), 1549 }; 1550 1551 wil_dbg_wmi(wil, "delba_tx: (ring %d reason %d)\n", ringid, reason); 1552 1553 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1554 } 1555 1556 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1557 { 1558 struct wmi_rcp_delba_cmd cmd = { 1559 .cidxtid = cidxtid, 1560 .reason = cpu_to_le16(reason), 1561 }; 1562 1563 wil_dbg_wmi(wil, "delba_rx: (CID %d TID %d reason %d)\n", cidxtid & 0xf, 1564 (cidxtid >> 4) & 0xf, reason); 1565 1566 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1567 } 1568 1569 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1570 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1571 { 1572 int rc; 1573 struct wmi_rcp_addba_resp_cmd cmd = { 1574 .cidxtid = mk_cidxtid(cid, tid), 1575 .dialog_token = token, 1576 .status_code = cpu_to_le16(status), 1577 /* bit 0: A-MSDU supported 1578 * bit 1: policy (should be 0 for us) 1579 * bits 2..5: TID 1580 * bits 6..15: buffer size 1581 */ 1582 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1583 (agg_wsize << 6)), 1584 .ba_timeout = cpu_to_le16(timeout), 1585 }; 1586 struct { 1587 struct wmi_cmd_hdr wmi; 1588 struct wmi_rcp_addba_resp_sent_event evt; 1589 } __packed reply; 1590 1591 wil_dbg_wmi(wil, 1592 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1593 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1594 1595 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1596 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1597 100); 1598 if (rc) 1599 return rc; 1600 1601 if (reply.evt.status) { 1602 wil_err(wil, "ADDBA response failed with status %d\n", 1603 le16_to_cpu(reply.evt.status)); 1604 rc = -EINVAL; 1605 } 1606 1607 return rc; 1608 } 1609 1610 int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil, 1611 enum wmi_ps_profile_type ps_profile) 1612 { 1613 int rc; 1614 struct wmi_ps_dev_profile_cfg_cmd cmd = { 1615 .ps_profile = ps_profile, 1616 }; 1617 struct { 1618 struct wmi_cmd_hdr wmi; 1619 struct wmi_ps_dev_profile_cfg_event evt; 1620 } __packed reply; 1621 u32 status; 1622 1623 wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile); 1624 1625 reply.evt.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR); 1626 1627 rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, &cmd, sizeof(cmd), 1628 WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply), 1629 100); 1630 if (rc) 1631 return rc; 1632 1633 status = le32_to_cpu(reply.evt.status); 1634 1635 if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) { 1636 wil_err(wil, "ps dev profile cfg failed with status %d\n", 1637 status); 1638 rc = -EINVAL; 1639 } 1640 1641 return rc; 1642 } 1643 1644 int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short) 1645 { 1646 int rc; 1647 struct wmi_set_mgmt_retry_limit_cmd cmd = { 1648 .mgmt_retry_limit = retry_short, 1649 }; 1650 struct { 1651 struct wmi_cmd_hdr wmi; 1652 struct wmi_set_mgmt_retry_limit_event evt; 1653 } __packed reply; 1654 1655 wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short); 1656 1657 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1658 return -ENOTSUPP; 1659 1660 reply.evt.status = WMI_FW_STATUS_FAILURE; 1661 1662 rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, &cmd, sizeof(cmd), 1663 WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1664 100); 1665 if (rc) 1666 return rc; 1667 1668 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1669 wil_err(wil, "set mgmt retry limit failed with status %d\n", 1670 reply.evt.status); 1671 rc = -EINVAL; 1672 } 1673 1674 return rc; 1675 } 1676 1677 int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short) 1678 { 1679 int rc; 1680 struct { 1681 struct wmi_cmd_hdr wmi; 1682 struct wmi_get_mgmt_retry_limit_event evt; 1683 } __packed reply; 1684 1685 wil_dbg_wmi(wil, "getting mgmt retry short\n"); 1686 1687 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1688 return -ENOTSUPP; 1689 1690 reply.evt.mgmt_retry_limit = 0; 1691 rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, NULL, 0, 1692 WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1693 100); 1694 if (rc) 1695 return rc; 1696 1697 if (retry_short) 1698 *retry_short = reply.evt.mgmt_retry_limit; 1699 1700 return 0; 1701 } 1702 1703 int wmi_abort_scan(struct wil6210_priv *wil) 1704 { 1705 int rc; 1706 1707 wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n"); 1708 1709 rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, NULL, 0); 1710 if (rc) 1711 wil_err(wil, "Failed to abort scan (%d)\n", rc); 1712 1713 return rc; 1714 } 1715 1716 int wmi_new_sta(struct wil6210_priv *wil, const u8 *mac, u8 aid) 1717 { 1718 int rc; 1719 struct wmi_new_sta_cmd cmd = { 1720 .aid = aid, 1721 }; 1722 1723 wil_dbg_wmi(wil, "new sta %pM, aid %d\n", mac, aid); 1724 1725 ether_addr_copy(cmd.dst_mac, mac); 1726 1727 rc = wmi_send(wil, WMI_NEW_STA_CMDID, &cmd, sizeof(cmd)); 1728 if (rc) 1729 wil_err(wil, "Failed to send new sta (%d)\n", rc); 1730 1731 return rc; 1732 } 1733 1734 void wmi_event_flush(struct wil6210_priv *wil) 1735 { 1736 struct pending_wmi_event *evt, *t; 1737 1738 wil_dbg_wmi(wil, "event_flush\n"); 1739 1740 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1741 list_del(&evt->list); 1742 kfree(evt); 1743 } 1744 } 1745 1746 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1747 void *d, int len) 1748 { 1749 uint i; 1750 1751 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1752 if (wmi_evt_handlers[i].eventid == id) { 1753 wmi_evt_handlers[i].handler(wil, id, d, len); 1754 return true; 1755 } 1756 } 1757 1758 return false; 1759 } 1760 1761 static void wmi_event_handle(struct wil6210_priv *wil, 1762 struct wil6210_mbox_hdr *hdr) 1763 { 1764 u16 len = le16_to_cpu(hdr->len); 1765 1766 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1767 (len >= sizeof(struct wmi_cmd_hdr))) { 1768 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]); 1769 void *evt_data = (void *)(&wmi[1]); 1770 u16 id = le16_to_cpu(wmi->command_id); 1771 1772 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1773 id, wil->reply_id); 1774 /* check if someone waits for this event */ 1775 if (wil->reply_id && wil->reply_id == id) { 1776 WARN_ON(wil->reply_buf); 1777 wmi_evt_call_handler(wil, id, evt_data, 1778 len - sizeof(*wmi)); 1779 wil_dbg_wmi(wil, "event_handle: Complete WMI 0x%04x\n", 1780 id); 1781 complete(&wil->wmi_call); 1782 return; 1783 } 1784 /* unsolicited event */ 1785 /* search for handler */ 1786 if (!wmi_evt_call_handler(wil, id, evt_data, 1787 len - sizeof(*wmi))) { 1788 wil_info(wil, "Unhandled event 0x%04x\n", id); 1789 } 1790 } else { 1791 wil_err(wil, "Unknown event type\n"); 1792 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1793 hdr, sizeof(*hdr) + len, true); 1794 } 1795 } 1796 1797 /* 1798 * Retrieve next WMI event from the pending list 1799 */ 1800 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1801 { 1802 ulong flags; 1803 struct list_head *ret = NULL; 1804 1805 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1806 1807 if (!list_empty(&wil->pending_wmi_ev)) { 1808 ret = wil->pending_wmi_ev.next; 1809 list_del(ret); 1810 } 1811 1812 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1813 1814 return ret; 1815 } 1816 1817 /* 1818 * Handler for the WMI events 1819 */ 1820 void wmi_event_worker(struct work_struct *work) 1821 { 1822 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1823 wmi_event_worker); 1824 struct pending_wmi_event *evt; 1825 struct list_head *lh; 1826 1827 wil_dbg_wmi(wil, "event_worker: Start\n"); 1828 while ((lh = next_wmi_ev(wil)) != NULL) { 1829 evt = list_entry(lh, struct pending_wmi_event, list); 1830 wmi_event_handle(wil, &evt->event.hdr); 1831 kfree(evt); 1832 } 1833 wil_dbg_wmi(wil, "event_worker: Finished\n"); 1834 } 1835