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 if (test_bit(wil_status_resetting, wil->status) || 522 !test_bit(wil_status_fwready, wil->status)) { 523 wil_err(wil, "status_resetting, cancel connect event, CID %d\n", 524 evt->cid); 525 /* no need for cleanup, wil_reset will do that */ 526 return; 527 } 528 529 mutex_lock(&wil->mutex); 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 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); 569 wil_err(wil, "cfg80211_connect_result with failure\n"); 570 cfg80211_connect_result(ndev, evt->bssid, NULL, 0, 571 NULL, 0, 572 WLAN_STATUS_UNSPECIFIED_FAILURE, 573 GFP_KERNEL); 574 goto out; 575 } else { 576 struct wiphy *wiphy = wil_to_wiphy(wil); 577 578 cfg80211_ref_bss(wiphy, wil->bss); 579 cfg80211_connect_bss(ndev, evt->bssid, wil->bss, 580 assoc_req_ie, assoc_req_ielen, 581 assoc_resp_ie, assoc_resp_ielen, 582 WLAN_STATUS_SUCCESS, GFP_KERNEL, 583 NL80211_TIMEOUT_UNSPECIFIED); 584 } 585 wil->bss = NULL; 586 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 587 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 588 if (rc) { 589 if (disable_ap_sme) 590 /* notify new_sta has failed */ 591 cfg80211_del_sta(ndev, evt->bssid, GFP_KERNEL); 592 goto out; 593 } 594 595 memset(&sinfo, 0, sizeof(sinfo)); 596 597 sinfo.generation = wil->sinfo_gen++; 598 599 if (assoc_req_ie) { 600 sinfo.assoc_req_ies = assoc_req_ie; 601 sinfo.assoc_req_ies_len = assoc_req_ielen; 602 } 603 604 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 605 } else { 606 wil_err(wil, "unhandled iftype %d for CID %d\n", wdev->iftype, 607 evt->cid); 608 goto out; 609 } 610 611 wil->sta[evt->cid].status = wil_sta_connected; 612 wil->sta[evt->cid].aid = evt->aid; 613 set_bit(wil_status_fwconnected, wil->status); 614 wil_update_net_queues_bh(wil, NULL, false); 615 616 out: 617 if (rc) 618 wil->sta[evt->cid].status = wil_sta_unused; 619 clear_bit(wil_status_fwconnecting, wil->status); 620 mutex_unlock(&wil->mutex); 621 } 622 623 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 624 void *d, int len) 625 { 626 struct wmi_disconnect_event *evt = d; 627 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 628 629 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 630 evt->bssid, reason_code, evt->disconnect_reason); 631 632 wil->sinfo_gen++; 633 634 if (test_bit(wil_status_resetting, wil->status) || 635 !test_bit(wil_status_fwready, wil->status)) { 636 wil_err(wil, "status_resetting, cancel disconnect event\n"); 637 /* no need for cleanup, wil_reset will do that */ 638 return; 639 } 640 641 mutex_lock(&wil->mutex); 642 wil6210_disconnect(wil, evt->bssid, reason_code, true); 643 mutex_unlock(&wil->mutex); 644 } 645 646 /* 647 * Firmware reports EAPOL frame using WME event. 648 * Reconstruct Ethernet frame and deliver it via normal Rx 649 */ 650 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 651 void *d, int len) 652 { 653 struct net_device *ndev = wil_to_ndev(wil); 654 struct wmi_eapol_rx_event *evt = d; 655 u16 eapol_len = le16_to_cpu(evt->eapol_len); 656 int sz = eapol_len + ETH_HLEN; 657 struct sk_buff *skb; 658 struct ethhdr *eth; 659 int cid; 660 struct wil_net_stats *stats = NULL; 661 662 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 663 evt->src_mac); 664 665 cid = wil_find_cid(wil, evt->src_mac); 666 if (cid >= 0) 667 stats = &wil->sta[cid].stats; 668 669 if (eapol_len > 196) { /* TODO: revisit size limit */ 670 wil_err(wil, "EAPOL too large\n"); 671 return; 672 } 673 674 skb = alloc_skb(sz, GFP_KERNEL); 675 if (!skb) { 676 wil_err(wil, "Failed to allocate skb\n"); 677 return; 678 } 679 680 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 681 ether_addr_copy(eth->h_dest, ndev->dev_addr); 682 ether_addr_copy(eth->h_source, evt->src_mac); 683 eth->h_proto = cpu_to_be16(ETH_P_PAE); 684 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 685 skb->protocol = eth_type_trans(skb, ndev); 686 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 687 ndev->stats.rx_packets++; 688 ndev->stats.rx_bytes += sz; 689 if (stats) { 690 stats->rx_packets++; 691 stats->rx_bytes += sz; 692 } 693 } else { 694 ndev->stats.rx_dropped++; 695 if (stats) 696 stats->rx_dropped++; 697 } 698 } 699 700 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 701 { 702 struct wmi_vring_en_event *evt = d; 703 u8 vri = evt->vring_index; 704 struct wireless_dev *wdev = wil_to_wdev(wil); 705 706 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 707 708 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 709 wil_err(wil, "Enable for invalid vring %d\n", vri); 710 return; 711 } 712 713 if (wdev->iftype != NL80211_IFTYPE_AP || !disable_ap_sme) 714 /* in AP mode with disable_ap_sme, this is done by 715 * wil_cfg80211_change_station() 716 */ 717 wil->vring_tx_data[vri].dot1x_open = true; 718 if (vri == wil->bcast_vring) /* no BA for bcast */ 719 return; 720 if (agg_wsize >= 0) 721 wil_addba_tx_request(wil, vri, agg_wsize); 722 } 723 724 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 725 int len) 726 { 727 struct wmi_ba_status_event *evt = d; 728 struct vring_tx_data *txdata; 729 730 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 731 evt->ringid, 732 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 733 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 734 evt->amsdu ? "+" : "-"); 735 736 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 737 wil_err(wil, "invalid ring id %d\n", evt->ringid); 738 return; 739 } 740 741 if (evt->status != WMI_BA_AGREED) { 742 evt->ba_timeout = 0; 743 evt->agg_wsize = 0; 744 evt->amsdu = 0; 745 } 746 747 txdata = &wil->vring_tx_data[evt->ringid]; 748 749 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 750 txdata->agg_wsize = evt->agg_wsize; 751 txdata->agg_amsdu = evt->amsdu; 752 txdata->addba_in_progress = false; 753 } 754 755 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 756 int len) 757 { 758 struct wmi_rcp_addba_req_event *evt = d; 759 760 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 761 evt->ba_param_set, evt->ba_timeout, 762 evt->ba_seq_ctrl); 763 } 764 765 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 766 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 767 { 768 struct wmi_delba_event *evt = d; 769 u8 cid, tid; 770 u16 reason = __le16_to_cpu(evt->reason); 771 struct wil_sta_info *sta; 772 struct wil_tid_ampdu_rx *r; 773 774 might_sleep(); 775 parse_cidxtid(evt->cidxtid, &cid, &tid); 776 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 777 cid, tid, 778 evt->from_initiator ? "originator" : "recipient", 779 reason); 780 if (!evt->from_initiator) { 781 int i; 782 /* find Tx vring it belongs to */ 783 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 784 if ((wil->vring2cid_tid[i][0] == cid) && 785 (wil->vring2cid_tid[i][1] == tid)) { 786 struct vring_tx_data *txdata = 787 &wil->vring_tx_data[i]; 788 789 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 790 txdata->agg_timeout = 0; 791 txdata->agg_wsize = 0; 792 txdata->addba_in_progress = false; 793 794 break; /* max. 1 matching ring */ 795 } 796 } 797 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 798 wil_err(wil, "DELBA: unable to find Tx vring\n"); 799 return; 800 } 801 802 sta = &wil->sta[cid]; 803 804 spin_lock_bh(&sta->tid_rx_lock); 805 806 r = sta->tid_rx[tid]; 807 sta->tid_rx[tid] = NULL; 808 wil_tid_ampdu_rx_free(wil, r); 809 810 spin_unlock_bh(&sta->tid_rx_lock); 811 } 812 813 /** 814 * Some events are ignored for purpose; and need not be interpreted as 815 * "unhandled events" 816 */ 817 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 818 { 819 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 820 } 821 822 static const struct { 823 int eventid; 824 void (*handler)(struct wil6210_priv *wil, int eventid, 825 void *data, int data_len); 826 } wmi_evt_handlers[] = { 827 {WMI_READY_EVENTID, wmi_evt_ready}, 828 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 829 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 830 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 831 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 832 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 833 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 834 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 835 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 836 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 837 {WMI_DELBA_EVENTID, wmi_evt_delba}, 838 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 839 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 840 }; 841 842 /* 843 * Run in IRQ context 844 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 845 * that will be eventually handled by the @wmi_event_worker in the thread 846 * context of thread "wil6210_wmi" 847 */ 848 void wmi_recv_cmd(struct wil6210_priv *wil) 849 { 850 struct wil6210_mbox_ring_desc d_tail; 851 struct wil6210_mbox_hdr hdr; 852 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 853 struct pending_wmi_event *evt; 854 u8 *cmd; 855 void __iomem *src; 856 ulong flags; 857 unsigned n; 858 unsigned int num_immed_reply = 0; 859 860 if (!test_bit(wil_status_mbox_ready, wil->status)) { 861 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 862 return; 863 } 864 865 for (n = 0;; n++) { 866 u16 len; 867 bool q; 868 bool immed_reply = false; 869 870 r->head = wil_r(wil, RGF_MBOX + 871 offsetof(struct wil6210_mbox_ctl, rx.head)); 872 if (r->tail == r->head) 873 break; 874 875 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 876 r->head, r->tail); 877 /* read cmd descriptor from tail */ 878 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 879 sizeof(struct wil6210_mbox_ring_desc)); 880 if (d_tail.sync == 0) { 881 wil_err(wil, "Mbox evt not owned by FW?\n"); 882 break; 883 } 884 885 /* read cmd header from descriptor */ 886 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 887 wil_err(wil, "Mbox evt at 0x%08x?\n", 888 le32_to_cpu(d_tail.addr)); 889 break; 890 } 891 len = le16_to_cpu(hdr.len); 892 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 893 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 894 hdr.flags); 895 896 /* read cmd buffer from descriptor */ 897 src = wmi_buffer(wil, d_tail.addr) + 898 sizeof(struct wil6210_mbox_hdr); 899 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 900 event.wmi) + len, 4), 901 GFP_KERNEL); 902 if (!evt) 903 break; 904 905 evt->event.hdr = hdr; 906 cmd = (void *)&evt->event.wmi; 907 wil_memcpy_fromio_32(cmd, src, len); 908 /* mark entry as empty */ 909 wil_w(wil, r->tail + 910 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 911 /* indicate */ 912 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 913 (len >= sizeof(struct wmi_cmd_hdr))) { 914 struct wmi_cmd_hdr *wmi = &evt->event.wmi; 915 u16 id = le16_to_cpu(wmi->command_id); 916 u32 tstamp = le32_to_cpu(wmi->fw_timestamp); 917 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 918 if (wil->reply_id && wil->reply_id == id) { 919 if (wil->reply_buf) { 920 memcpy(wil->reply_buf, wmi, 921 min(len, wil->reply_size)); 922 immed_reply = true; 923 } 924 } 925 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 926 927 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 928 id, wmi->mid, tstamp); 929 trace_wil6210_wmi_event(wmi, &wmi[1], 930 len - sizeof(*wmi)); 931 } 932 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 933 &evt->event.hdr, sizeof(hdr) + len, true); 934 935 /* advance tail */ 936 r->tail = r->base + ((r->tail - r->base + 937 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 938 wil_w(wil, RGF_MBOX + 939 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 940 941 if (immed_reply) { 942 wil_dbg_wmi(wil, "recv_cmd: Complete WMI 0x%04x\n", 943 wil->reply_id); 944 kfree(evt); 945 num_immed_reply++; 946 complete(&wil->wmi_call); 947 } else { 948 /* add to the pending list */ 949 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 950 list_add_tail(&evt->list, &wil->pending_wmi_ev); 951 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 952 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 953 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 954 } 955 } 956 /* normally, 1 event per IRQ should be processed */ 957 wil_dbg_wmi(wil, "recv_cmd: -> %d events queued, %d completed\n", 958 n - num_immed_reply, num_immed_reply); 959 } 960 961 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 962 u16 reply_id, void *reply, u8 reply_size, int to_msec) 963 { 964 int rc; 965 unsigned long remain; 966 967 mutex_lock(&wil->wmi_mutex); 968 969 spin_lock(&wil->wmi_ev_lock); 970 wil->reply_id = reply_id; 971 wil->reply_buf = reply; 972 wil->reply_size = reply_size; 973 reinit_completion(&wil->wmi_call); 974 spin_unlock(&wil->wmi_ev_lock); 975 976 rc = __wmi_send(wil, cmdid, buf, len); 977 if (rc) 978 goto out; 979 980 remain = wait_for_completion_timeout(&wil->wmi_call, 981 msecs_to_jiffies(to_msec)); 982 if (0 == remain) { 983 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 984 cmdid, reply_id, to_msec); 985 rc = -ETIME; 986 } else { 987 wil_dbg_wmi(wil, 988 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 989 cmdid, reply_id, 990 to_msec - jiffies_to_msecs(remain)); 991 } 992 993 out: 994 spin_lock(&wil->wmi_ev_lock); 995 wil->reply_id = 0; 996 wil->reply_buf = NULL; 997 wil->reply_size = 0; 998 spin_unlock(&wil->wmi_ev_lock); 999 1000 mutex_unlock(&wil->wmi_mutex); 1001 1002 return rc; 1003 } 1004 1005 int wmi_echo(struct wil6210_priv *wil) 1006 { 1007 struct wmi_echo_cmd cmd = { 1008 .value = cpu_to_le32(0x12345678), 1009 }; 1010 1011 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 1012 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 1013 } 1014 1015 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 1016 { 1017 struct wmi_set_mac_address_cmd cmd; 1018 1019 ether_addr_copy(cmd.mac, addr); 1020 1021 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 1022 1023 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 1024 } 1025 1026 int wmi_led_cfg(struct wil6210_priv *wil, bool enable) 1027 { 1028 int rc = 0; 1029 struct wmi_led_cfg_cmd cmd = { 1030 .led_mode = enable, 1031 .id = led_id, 1032 .slow_blink_cfg.blink_on = 1033 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms), 1034 .slow_blink_cfg.blink_off = 1035 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms), 1036 .medium_blink_cfg.blink_on = 1037 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms), 1038 .medium_blink_cfg.blink_off = 1039 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms), 1040 .fast_blink_cfg.blink_on = 1041 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms), 1042 .fast_blink_cfg.blink_off = 1043 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms), 1044 .led_polarity = led_polarity, 1045 }; 1046 struct { 1047 struct wmi_cmd_hdr wmi; 1048 struct wmi_led_cfg_done_event evt; 1049 } __packed reply; 1050 1051 if (led_id == WIL_LED_INVALID_ID) 1052 goto out; 1053 1054 if (led_id > WIL_LED_MAX_ID) { 1055 wil_err(wil, "Invalid led id %d\n", led_id); 1056 rc = -EINVAL; 1057 goto out; 1058 } 1059 1060 wil_dbg_wmi(wil, 1061 "%s led %d\n", 1062 enable ? "enabling" : "disabling", led_id); 1063 1064 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd), 1065 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply), 1066 100); 1067 if (rc) 1068 goto out; 1069 1070 if (reply.evt.status) { 1071 wil_err(wil, "led %d cfg failed with status %d\n", 1072 led_id, le32_to_cpu(reply.evt.status)); 1073 rc = -EINVAL; 1074 } 1075 1076 out: 1077 return rc; 1078 } 1079 1080 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 1081 u8 chan, u8 hidden_ssid, u8 is_go) 1082 { 1083 int rc; 1084 1085 struct wmi_pcp_start_cmd cmd = { 1086 .bcon_interval = cpu_to_le16(bi), 1087 .network_type = wmi_nettype, 1088 .disable_sec_offload = 1, 1089 .channel = chan - 1, 1090 .pcp_max_assoc_sta = max_assoc_sta, 1091 .hidden_ssid = hidden_ssid, 1092 .is_go = is_go, 1093 .disable_ap_sme = disable_ap_sme, 1094 .abft_len = wil->abft_len, 1095 }; 1096 struct { 1097 struct wmi_cmd_hdr wmi; 1098 struct wmi_pcp_started_event evt; 1099 } __packed reply; 1100 1101 if (!wil->privacy) 1102 cmd.disable_sec = 1; 1103 1104 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 1105 (cmd.pcp_max_assoc_sta <= 0)) { 1106 wil_info(wil, 1107 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 1108 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 1109 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 1110 } 1111 1112 if (disable_ap_sme && 1113 !test_bit(WMI_FW_CAPABILITY_DISABLE_AP_SME, 1114 wil->fw_capabilities)) { 1115 wil_err(wil, "disable_ap_sme not supported by FW\n"); 1116 return -EOPNOTSUPP; 1117 } 1118 1119 /* 1120 * Processing time may be huge, in case of secure AP it takes about 1121 * 3500ms for FW to start AP 1122 */ 1123 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 1124 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 1125 if (rc) 1126 return rc; 1127 1128 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 1129 rc = -EINVAL; 1130 1131 if (wmi_nettype != WMI_NETTYPE_P2P) 1132 /* Don't fail due to error in the led configuration */ 1133 wmi_led_cfg(wil, true); 1134 1135 return rc; 1136 } 1137 1138 int wmi_pcp_stop(struct wil6210_priv *wil) 1139 { 1140 int rc; 1141 1142 rc = wmi_led_cfg(wil, false); 1143 if (rc) 1144 return rc; 1145 1146 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 1147 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 1148 } 1149 1150 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 1151 { 1152 struct wmi_set_ssid_cmd cmd = { 1153 .ssid_len = cpu_to_le32(ssid_len), 1154 }; 1155 1156 if (ssid_len > sizeof(cmd.ssid)) 1157 return -EINVAL; 1158 1159 memcpy(cmd.ssid, ssid, ssid_len); 1160 1161 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 1162 } 1163 1164 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 1165 { 1166 int rc; 1167 struct { 1168 struct wmi_cmd_hdr wmi; 1169 struct wmi_set_ssid_cmd cmd; 1170 } __packed reply; 1171 int len; /* reply.cmd.ssid_len in CPU order */ 1172 1173 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 1174 &reply, sizeof(reply), 20); 1175 if (rc) 1176 return rc; 1177 1178 len = le32_to_cpu(reply.cmd.ssid_len); 1179 if (len > sizeof(reply.cmd.ssid)) 1180 return -EINVAL; 1181 1182 *ssid_len = len; 1183 memcpy(ssid, reply.cmd.ssid, len); 1184 1185 return 0; 1186 } 1187 1188 int wmi_set_channel(struct wil6210_priv *wil, int channel) 1189 { 1190 struct wmi_set_pcp_channel_cmd cmd = { 1191 .channel = channel - 1, 1192 }; 1193 1194 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 1195 } 1196 1197 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 1198 { 1199 int rc; 1200 struct { 1201 struct wmi_cmd_hdr wmi; 1202 struct wmi_set_pcp_channel_cmd cmd; 1203 } __packed reply; 1204 1205 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 1206 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 1207 if (rc) 1208 return rc; 1209 1210 if (reply.cmd.channel > 3) 1211 return -EINVAL; 1212 1213 *channel = reply.cmd.channel + 1; 1214 1215 return 0; 1216 } 1217 1218 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi) 1219 { 1220 int rc; 1221 struct wmi_p2p_cfg_cmd cmd = { 1222 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER, 1223 .bcon_interval = cpu_to_le16(bi), 1224 .channel = channel - 1, 1225 }; 1226 struct { 1227 struct wmi_cmd_hdr wmi; 1228 struct wmi_p2p_cfg_done_event evt; 1229 } __packed reply; 1230 1231 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n"); 1232 1233 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd), 1234 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300); 1235 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1236 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status); 1237 rc = -EINVAL; 1238 } 1239 1240 return rc; 1241 } 1242 1243 int wmi_start_listen(struct wil6210_priv *wil) 1244 { 1245 int rc; 1246 struct { 1247 struct wmi_cmd_hdr wmi; 1248 struct wmi_listen_started_event evt; 1249 } __packed reply; 1250 1251 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n"); 1252 1253 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1254 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300); 1255 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1256 wil_err(wil, "device failed to start listen. status %d\n", 1257 reply.evt.status); 1258 rc = -EINVAL; 1259 } 1260 1261 return rc; 1262 } 1263 1264 int wmi_start_search(struct wil6210_priv *wil) 1265 { 1266 int rc; 1267 struct { 1268 struct wmi_cmd_hdr wmi; 1269 struct wmi_search_started_event evt; 1270 } __packed reply; 1271 1272 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n"); 1273 1274 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0, 1275 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300); 1276 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1277 wil_err(wil, "device failed to start search. status %d\n", 1278 reply.evt.status); 1279 rc = -EINVAL; 1280 } 1281 1282 return rc; 1283 } 1284 1285 int wmi_stop_discovery(struct wil6210_priv *wil) 1286 { 1287 int rc; 1288 1289 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n"); 1290 1291 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1292 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100); 1293 1294 if (rc) 1295 wil_err(wil, "Failed to stop discovery\n"); 1296 1297 return rc; 1298 } 1299 1300 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 1301 const void *mac_addr, int key_usage) 1302 { 1303 struct wmi_delete_cipher_key_cmd cmd = { 1304 .key_index = key_index, 1305 }; 1306 1307 if (mac_addr) 1308 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1309 1310 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1311 } 1312 1313 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1314 const void *mac_addr, int key_len, const void *key, 1315 int key_usage) 1316 { 1317 struct wmi_add_cipher_key_cmd cmd = { 1318 .key_index = key_index, 1319 .key_usage = key_usage, 1320 .key_len = key_len, 1321 }; 1322 1323 if (!key || (key_len > sizeof(cmd.key))) 1324 return -EINVAL; 1325 1326 memcpy(cmd.key, key, key_len); 1327 if (mac_addr) 1328 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1329 1330 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1331 } 1332 1333 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1334 { 1335 static const char *const names[] = { 1336 [WMI_FRAME_BEACON] = "BEACON", 1337 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1338 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1339 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1340 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1341 }; 1342 int rc; 1343 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1344 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1345 1346 if (!cmd) { 1347 rc = -ENOMEM; 1348 goto out; 1349 } 1350 if (!ie) 1351 ie_len = 0; 1352 1353 cmd->mgmt_frm_type = type; 1354 /* BUG: FW API define ieLen as u8. Will fix FW */ 1355 cmd->ie_len = cpu_to_le16(ie_len); 1356 memcpy(cmd->ie_info, ie, ie_len); 1357 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1358 kfree(cmd); 1359 out: 1360 if (rc) { 1361 const char *name = type < ARRAY_SIZE(names) ? 1362 names[type] : "??"; 1363 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1364 } 1365 1366 return rc; 1367 } 1368 1369 /** 1370 * wmi_rxon - turn radio on/off 1371 * @on: turn on if true, off otherwise 1372 * 1373 * Only switch radio. Channel should be set separately. 1374 * No timeout for rxon - radio turned on forever unless some other call 1375 * turns it off 1376 */ 1377 int wmi_rxon(struct wil6210_priv *wil, bool on) 1378 { 1379 int rc; 1380 struct { 1381 struct wmi_cmd_hdr wmi; 1382 struct wmi_listen_started_event evt; 1383 } __packed reply; 1384 1385 wil_info(wil, "(%s)\n", on ? "on" : "off"); 1386 1387 if (on) { 1388 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1389 WMI_LISTEN_STARTED_EVENTID, 1390 &reply, sizeof(reply), 100); 1391 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1392 rc = -EINVAL; 1393 } else { 1394 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1395 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1396 } 1397 1398 return rc; 1399 } 1400 1401 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1402 { 1403 struct wireless_dev *wdev = wil->wdev; 1404 struct net_device *ndev = wil_to_ndev(wil); 1405 struct wmi_cfg_rx_chain_cmd cmd = { 1406 .action = WMI_RX_CHAIN_ADD, 1407 .rx_sw_ring = { 1408 .max_mpdu_size = cpu_to_le16( 1409 wil_mtu2macbuf(wil->rx_buf_len)), 1410 .ring_mem_base = cpu_to_le64(vring->pa), 1411 .ring_size = cpu_to_le16(vring->size), 1412 }, 1413 .mid = 0, /* TODO - what is it? */ 1414 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1415 .reorder_type = WMI_RX_SW_REORDER, 1416 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1417 }; 1418 struct { 1419 struct wmi_cmd_hdr wmi; 1420 struct wmi_cfg_rx_chain_done_event evt; 1421 } __packed evt; 1422 int rc; 1423 1424 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1425 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1426 1427 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1428 if (ch) 1429 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1430 cmd.sniffer_cfg.phy_info_mode = 1431 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1432 cmd.sniffer_cfg.phy_support = 1433 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1434 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1435 } else { 1436 /* Initialize offload (in non-sniffer mode). 1437 * Linux IP stack always calculates IP checksum 1438 * HW always calculate TCP/UDP checksum 1439 */ 1440 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1441 } 1442 1443 if (rx_align_2) 1444 cmd.l2_802_3_offload_ctrl |= 1445 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1446 1447 /* typical time for secure PCP is 840ms */ 1448 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1449 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1450 if (rc) 1451 return rc; 1452 1453 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1454 1455 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1456 le32_to_cpu(evt.evt.status), vring->hwtail); 1457 1458 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1459 rc = -EINVAL; 1460 1461 return rc; 1462 } 1463 1464 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1465 { 1466 int rc; 1467 struct wmi_temp_sense_cmd cmd = { 1468 .measure_baseband_en = cpu_to_le32(!!t_bb), 1469 .measure_rf_en = cpu_to_le32(!!t_rf), 1470 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1471 }; 1472 struct { 1473 struct wmi_cmd_hdr wmi; 1474 struct wmi_temp_sense_done_event evt; 1475 } __packed reply; 1476 1477 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1478 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1479 if (rc) 1480 return rc; 1481 1482 if (t_bb) 1483 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1484 if (t_rf) 1485 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1486 1487 return 0; 1488 } 1489 1490 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, 1491 u16 reason, bool full_disconnect, bool del_sta) 1492 { 1493 int rc; 1494 u16 reason_code; 1495 struct wmi_disconnect_sta_cmd disc_sta_cmd = { 1496 .disconnect_reason = cpu_to_le16(reason), 1497 }; 1498 struct wmi_del_sta_cmd del_sta_cmd = { 1499 .disconnect_reason = cpu_to_le16(reason), 1500 }; 1501 struct { 1502 struct wmi_cmd_hdr wmi; 1503 struct wmi_disconnect_event evt; 1504 } __packed reply; 1505 1506 wil_dbg_wmi(wil, "disconnect_sta: (%pM, reason %d)\n", mac, reason); 1507 1508 wil->locally_generated_disc = true; 1509 if (del_sta) { 1510 ether_addr_copy(del_sta_cmd.dst_mac, mac); 1511 rc = wmi_call(wil, WMI_DEL_STA_CMDID, &del_sta_cmd, 1512 sizeof(del_sta_cmd), WMI_DISCONNECT_EVENTID, 1513 &reply, sizeof(reply), 1000); 1514 } else { 1515 ether_addr_copy(disc_sta_cmd.dst_mac, mac); 1516 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &disc_sta_cmd, 1517 sizeof(disc_sta_cmd), WMI_DISCONNECT_EVENTID, 1518 &reply, sizeof(reply), 1000); 1519 } 1520 /* failure to disconnect in reasonable time treated as FW error */ 1521 if (rc) { 1522 wil_fw_error_recovery(wil); 1523 return rc; 1524 } 1525 1526 if (full_disconnect) { 1527 /* call event handler manually after processing wmi_call, 1528 * to avoid deadlock - disconnect event handler acquires 1529 * wil->mutex while it is already held here 1530 */ 1531 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1532 1533 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1534 reply.evt.bssid, reason_code, 1535 reply.evt.disconnect_reason); 1536 1537 wil->sinfo_gen++; 1538 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1539 } 1540 return 0; 1541 } 1542 1543 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1544 { 1545 struct wmi_vring_ba_en_cmd cmd = { 1546 .ringid = ringid, 1547 .agg_max_wsize = size, 1548 .ba_timeout = cpu_to_le16(timeout), 1549 .amsdu = 0, 1550 }; 1551 1552 wil_dbg_wmi(wil, "addba: (ring %d size %d timeout %d)\n", ringid, size, 1553 timeout); 1554 1555 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1556 } 1557 1558 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1559 { 1560 struct wmi_vring_ba_dis_cmd cmd = { 1561 .ringid = ringid, 1562 .reason = cpu_to_le16(reason), 1563 }; 1564 1565 wil_dbg_wmi(wil, "delba_tx: (ring %d reason %d)\n", ringid, reason); 1566 1567 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1568 } 1569 1570 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1571 { 1572 struct wmi_rcp_delba_cmd cmd = { 1573 .cidxtid = cidxtid, 1574 .reason = cpu_to_le16(reason), 1575 }; 1576 1577 wil_dbg_wmi(wil, "delba_rx: (CID %d TID %d reason %d)\n", cidxtid & 0xf, 1578 (cidxtid >> 4) & 0xf, reason); 1579 1580 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1581 } 1582 1583 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1584 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1585 { 1586 int rc; 1587 struct wmi_rcp_addba_resp_cmd cmd = { 1588 .cidxtid = mk_cidxtid(cid, tid), 1589 .dialog_token = token, 1590 .status_code = cpu_to_le16(status), 1591 /* bit 0: A-MSDU supported 1592 * bit 1: policy (should be 0 for us) 1593 * bits 2..5: TID 1594 * bits 6..15: buffer size 1595 */ 1596 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1597 (agg_wsize << 6)), 1598 .ba_timeout = cpu_to_le16(timeout), 1599 }; 1600 struct { 1601 struct wmi_cmd_hdr wmi; 1602 struct wmi_rcp_addba_resp_sent_event evt; 1603 } __packed reply; 1604 1605 wil_dbg_wmi(wil, 1606 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1607 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1608 1609 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1610 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1611 100); 1612 if (rc) 1613 return rc; 1614 1615 if (reply.evt.status) { 1616 wil_err(wil, "ADDBA response failed with status %d\n", 1617 le16_to_cpu(reply.evt.status)); 1618 rc = -EINVAL; 1619 } 1620 1621 return rc; 1622 } 1623 1624 int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil, 1625 enum wmi_ps_profile_type ps_profile) 1626 { 1627 int rc; 1628 struct wmi_ps_dev_profile_cfg_cmd cmd = { 1629 .ps_profile = ps_profile, 1630 }; 1631 struct { 1632 struct wmi_cmd_hdr wmi; 1633 struct wmi_ps_dev_profile_cfg_event evt; 1634 } __packed reply; 1635 u32 status; 1636 1637 wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile); 1638 1639 reply.evt.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR); 1640 1641 rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, &cmd, sizeof(cmd), 1642 WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply), 1643 100); 1644 if (rc) 1645 return rc; 1646 1647 status = le32_to_cpu(reply.evt.status); 1648 1649 if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) { 1650 wil_err(wil, "ps dev profile cfg failed with status %d\n", 1651 status); 1652 rc = -EINVAL; 1653 } 1654 1655 return rc; 1656 } 1657 1658 int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short) 1659 { 1660 int rc; 1661 struct wmi_set_mgmt_retry_limit_cmd cmd = { 1662 .mgmt_retry_limit = retry_short, 1663 }; 1664 struct { 1665 struct wmi_cmd_hdr wmi; 1666 struct wmi_set_mgmt_retry_limit_event evt; 1667 } __packed reply; 1668 1669 wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short); 1670 1671 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1672 return -ENOTSUPP; 1673 1674 reply.evt.status = WMI_FW_STATUS_FAILURE; 1675 1676 rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, &cmd, sizeof(cmd), 1677 WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1678 100); 1679 if (rc) 1680 return rc; 1681 1682 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1683 wil_err(wil, "set mgmt retry limit failed with status %d\n", 1684 reply.evt.status); 1685 rc = -EINVAL; 1686 } 1687 1688 return rc; 1689 } 1690 1691 int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short) 1692 { 1693 int rc; 1694 struct { 1695 struct wmi_cmd_hdr wmi; 1696 struct wmi_get_mgmt_retry_limit_event evt; 1697 } __packed reply; 1698 1699 wil_dbg_wmi(wil, "getting mgmt retry short\n"); 1700 1701 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1702 return -ENOTSUPP; 1703 1704 reply.evt.mgmt_retry_limit = 0; 1705 rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, NULL, 0, 1706 WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1707 100); 1708 if (rc) 1709 return rc; 1710 1711 if (retry_short) 1712 *retry_short = reply.evt.mgmt_retry_limit; 1713 1714 return 0; 1715 } 1716 1717 int wmi_abort_scan(struct wil6210_priv *wil) 1718 { 1719 int rc; 1720 1721 wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n"); 1722 1723 rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, NULL, 0); 1724 if (rc) 1725 wil_err(wil, "Failed to abort scan (%d)\n", rc); 1726 1727 return rc; 1728 } 1729 1730 int wmi_new_sta(struct wil6210_priv *wil, const u8 *mac, u8 aid) 1731 { 1732 int rc; 1733 struct wmi_new_sta_cmd cmd = { 1734 .aid = aid, 1735 }; 1736 1737 wil_dbg_wmi(wil, "new sta %pM, aid %d\n", mac, aid); 1738 1739 ether_addr_copy(cmd.dst_mac, mac); 1740 1741 rc = wmi_send(wil, WMI_NEW_STA_CMDID, &cmd, sizeof(cmd)); 1742 if (rc) 1743 wil_err(wil, "Failed to send new sta (%d)\n", rc); 1744 1745 return rc; 1746 } 1747 1748 void wmi_event_flush(struct wil6210_priv *wil) 1749 { 1750 ulong flags; 1751 struct pending_wmi_event *evt, *t; 1752 1753 wil_dbg_wmi(wil, "event_flush\n"); 1754 1755 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1756 1757 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1758 list_del(&evt->list); 1759 kfree(evt); 1760 } 1761 1762 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1763 } 1764 1765 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1766 void *d, int len) 1767 { 1768 uint i; 1769 1770 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1771 if (wmi_evt_handlers[i].eventid == id) { 1772 wmi_evt_handlers[i].handler(wil, id, d, len); 1773 return true; 1774 } 1775 } 1776 1777 return false; 1778 } 1779 1780 static void wmi_event_handle(struct wil6210_priv *wil, 1781 struct wil6210_mbox_hdr *hdr) 1782 { 1783 u16 len = le16_to_cpu(hdr->len); 1784 1785 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1786 (len >= sizeof(struct wmi_cmd_hdr))) { 1787 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]); 1788 void *evt_data = (void *)(&wmi[1]); 1789 u16 id = le16_to_cpu(wmi->command_id); 1790 1791 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1792 id, wil->reply_id); 1793 /* check if someone waits for this event */ 1794 if (wil->reply_id && wil->reply_id == id) { 1795 WARN_ON(wil->reply_buf); 1796 wmi_evt_call_handler(wil, id, evt_data, 1797 len - sizeof(*wmi)); 1798 wil_dbg_wmi(wil, "event_handle: Complete WMI 0x%04x\n", 1799 id); 1800 complete(&wil->wmi_call); 1801 return; 1802 } 1803 /* unsolicited event */ 1804 /* search for handler */ 1805 if (!wmi_evt_call_handler(wil, id, evt_data, 1806 len - sizeof(*wmi))) { 1807 wil_info(wil, "Unhandled event 0x%04x\n", id); 1808 } 1809 } else { 1810 wil_err(wil, "Unknown event type\n"); 1811 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1812 hdr, sizeof(*hdr) + len, true); 1813 } 1814 } 1815 1816 /* 1817 * Retrieve next WMI event from the pending list 1818 */ 1819 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1820 { 1821 ulong flags; 1822 struct list_head *ret = NULL; 1823 1824 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1825 1826 if (!list_empty(&wil->pending_wmi_ev)) { 1827 ret = wil->pending_wmi_ev.next; 1828 list_del(ret); 1829 } 1830 1831 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1832 1833 return ret; 1834 } 1835 1836 /* 1837 * Handler for the WMI events 1838 */ 1839 void wmi_event_worker(struct work_struct *work) 1840 { 1841 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1842 wmi_event_worker); 1843 struct pending_wmi_event *evt; 1844 struct list_head *lh; 1845 1846 wil_dbg_wmi(wil, "event_worker: Start\n"); 1847 while ((lh = next_wmi_ev(wil)) != NULL) { 1848 evt = list_entry(lh, struct pending_wmi_event, list); 1849 wmi_event_handle(wil, &evt->event.hdr); 1850 kfree(evt); 1851 } 1852 wil_dbg_wmi(wil, "event_worker: Finished\n"); 1853 } 1854