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 #define WIL_WAIT_FOR_SUSPEND_RESUME_COMP 200 41 42 /** 43 * WMI event receiving - theory of operations 44 * 45 * When firmware about to report WMI event, it fills memory area 46 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for 47 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler. 48 * 49 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the 50 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up 51 * and handles events within the @wmi_event_worker. Every event get detached 52 * from list, processed and deleted. 53 * 54 * Purpose for this mechanism is to release IRQ thread; otherwise, 55 * if WMI event handling involves another WMI command flow, this 2-nd flow 56 * won't be completed because of blocked IRQ thread. 57 */ 58 59 /** 60 * Addressing - theory of operations 61 * 62 * There are several buses present on the WIL6210 card. 63 * Same memory areas are visible at different address on 64 * the different busses. There are 3 main bus masters: 65 * - MAC CPU (ucode) 66 * - User CPU (firmware) 67 * - AHB (host) 68 * 69 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing 70 * AHB addresses starting from 0x880000 71 * 72 * Internally, firmware uses addresses that allows faster access but 73 * are invisible from the host. To read from these addresses, alternative 74 * AHB address must be used. 75 * 76 * Memory mapping 77 * Linker address PCI/Host address 78 * 0x880000 .. 0xa80000 2Mb BAR0 79 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM 80 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH 81 */ 82 83 /** 84 * @fw_mapping provides memory remapping table 85 * 86 * array size should be in sync with the declaration in the wil6210.h 87 */ 88 const struct fw_map fw_mapping[] = { 89 /* FW code RAM 256k */ 90 {0x000000, 0x040000, 0x8c0000, "fw_code", true}, 91 /* FW data RAM 32k */ 92 {0x800000, 0x808000, 0x900000, "fw_data", true}, 93 /* periph data 128k */ 94 {0x840000, 0x860000, 0x908000, "fw_peri", true}, 95 /* various RGF 40k */ 96 {0x880000, 0x88a000, 0x880000, "rgf", true}, 97 /* AGC table 4k */ 98 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl", true}, 99 /* Pcie_ext_rgf 4k */ 100 {0x88b000, 0x88c000, 0x88b000, "rgf_ext", true}, 101 /* mac_ext_rgf 512b */ 102 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext", true}, 103 /* upper area 548k */ 104 {0x8c0000, 0x949000, 0x8c0000, "upper", true}, 105 /* UCODE areas - accessible by debugfs blobs but not by 106 * wmi_addr_remap. UCODE areas MUST be added AFTER FW areas! 107 */ 108 /* ucode code RAM 128k */ 109 {0x000000, 0x020000, 0x920000, "uc_code", false}, 110 /* ucode data RAM 16k */ 111 {0x800000, 0x804000, 0x940000, "uc_data", false}, 112 }; 113 114 struct blink_on_off_time led_blink_time[] = { 115 {WIL_LED_BLINK_ON_SLOW_MS, WIL_LED_BLINK_OFF_SLOW_MS}, 116 {WIL_LED_BLINK_ON_MED_MS, WIL_LED_BLINK_OFF_MED_MS}, 117 {WIL_LED_BLINK_ON_FAST_MS, WIL_LED_BLINK_OFF_FAST_MS}, 118 }; 119 120 u8 led_polarity = LED_POLARITY_LOW_ACTIVE; 121 122 /** 123 * return AHB address for given firmware internal (linker) address 124 * @x - internal address 125 * If address have no valid AHB mapping, return 0 126 */ 127 static u32 wmi_addr_remap(u32 x) 128 { 129 uint i; 130 131 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 132 if (fw_mapping[i].fw && 133 ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))) 134 return x + fw_mapping[i].host - fw_mapping[i].from; 135 } 136 137 return 0; 138 } 139 140 /** 141 * Check address validity for WMI buffer; remap if needed 142 * @ptr - internal (linker) fw/ucode address 143 * 144 * Valid buffer should be DWORD aligned 145 * 146 * return address for accessing buffer from the host; 147 * if buffer is not valid, return NULL. 148 */ 149 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_) 150 { 151 u32 off; 152 u32 ptr = le32_to_cpu(ptr_); 153 154 if (ptr % 4) 155 return NULL; 156 157 ptr = wmi_addr_remap(ptr); 158 if (ptr < WIL6210_FW_HOST_OFF) 159 return NULL; 160 161 off = HOSTADDR(ptr); 162 if (off > wil->bar_size - 4) 163 return NULL; 164 165 return wil->csr + off; 166 } 167 168 /** 169 * Check address validity 170 */ 171 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr) 172 { 173 u32 off; 174 175 if (ptr % 4) 176 return NULL; 177 178 if (ptr < WIL6210_FW_HOST_OFF) 179 return NULL; 180 181 off = HOSTADDR(ptr); 182 if (off > wil->bar_size - 4) 183 return NULL; 184 185 return wil->csr + off; 186 } 187 188 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, 189 struct wil6210_mbox_hdr *hdr) 190 { 191 void __iomem *src = wmi_buffer(wil, ptr); 192 193 if (!src) 194 return -EINVAL; 195 196 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr)); 197 198 return 0; 199 } 200 201 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 202 { 203 struct { 204 struct wil6210_mbox_hdr hdr; 205 struct wmi_cmd_hdr wmi; 206 } __packed cmd = { 207 .hdr = { 208 .type = WIL_MBOX_HDR_TYPE_WMI, 209 .flags = 0, 210 .len = cpu_to_le16(sizeof(cmd.wmi) + len), 211 }, 212 .wmi = { 213 .mid = 0, 214 .command_id = cpu_to_le16(cmdid), 215 }, 216 }; 217 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx; 218 struct wil6210_mbox_ring_desc d_head; 219 u32 next_head; 220 void __iomem *dst; 221 void __iomem *head = wmi_addr(wil, r->head); 222 uint retry; 223 int rc = 0; 224 225 if (sizeof(cmd) + len > r->entry_size) { 226 wil_err(wil, "WMI size too large: %d bytes, max is %d\n", 227 (int)(sizeof(cmd) + len), r->entry_size); 228 return -ERANGE; 229 } 230 231 might_sleep(); 232 233 if (!test_bit(wil_status_fwready, wil->status)) { 234 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 235 return -EAGAIN; 236 } 237 238 /* Allow sending only suspend / resume commands during susepnd flow */ 239 if ((test_bit(wil_status_suspending, wil->status) || 240 test_bit(wil_status_suspended, wil->status) || 241 test_bit(wil_status_resuming, wil->status)) && 242 ((cmdid != WMI_TRAFFIC_SUSPEND_CMDID) && 243 (cmdid != WMI_TRAFFIC_RESUME_CMDID))) { 244 wil_err(wil, "WMI: reject send_command during suspend\n"); 245 return -EINVAL; 246 } 247 248 if (!head) { 249 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head); 250 return -EINVAL; 251 } 252 253 wil_halp_vote(wil); 254 255 /* read Tx head till it is not busy */ 256 for (retry = 5; retry > 0; retry--) { 257 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head)); 258 if (d_head.sync == 0) 259 break; 260 msleep(20); 261 } 262 if (d_head.sync != 0) { 263 wil_err(wil, "WMI head busy\n"); 264 rc = -EBUSY; 265 goto out; 266 } 267 /* next head */ 268 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size); 269 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head); 270 /* wait till FW finish with previous command */ 271 for (retry = 5; retry > 0; retry--) { 272 if (!test_bit(wil_status_fwready, wil->status)) { 273 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 274 rc = -EAGAIN; 275 goto out; 276 } 277 r->tail = wil_r(wil, RGF_MBOX + 278 offsetof(struct wil6210_mbox_ctl, tx.tail)); 279 if (next_head != r->tail) 280 break; 281 msleep(20); 282 } 283 if (next_head == r->tail) { 284 wil_err(wil, "WMI ring full\n"); 285 rc = -EBUSY; 286 goto out; 287 } 288 dst = wmi_buffer(wil, d_head.addr); 289 if (!dst) { 290 wil_err(wil, "invalid WMI buffer: 0x%08x\n", 291 le32_to_cpu(d_head.addr)); 292 rc = -EAGAIN; 293 goto out; 294 } 295 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); 296 /* set command */ 297 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len); 298 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, 299 sizeof(cmd), true); 300 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, 301 len, true); 302 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); 303 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); 304 /* mark entry as full */ 305 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1); 306 /* advance next ptr */ 307 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head), 308 r->head = next_head); 309 310 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 311 312 /* interrupt to FW */ 313 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS), 314 SW_INT_MBOX); 315 316 out: 317 wil_halp_unvote(wil); 318 return rc; 319 } 320 321 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 322 { 323 int rc; 324 325 mutex_lock(&wil->wmi_mutex); 326 rc = __wmi_send(wil, cmdid, buf, len); 327 mutex_unlock(&wil->wmi_mutex); 328 329 return rc; 330 } 331 332 /*=== Event handlers ===*/ 333 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 334 { 335 struct wireless_dev *wdev = wil->wdev; 336 struct wmi_ready_event *evt = d; 337 338 wil->n_mids = evt->numof_additional_mids; 339 340 wil_info(wil, "FW ver. %s(SW %d); MAC %pM; %d MID's\n", 341 wil->fw_version, le32_to_cpu(evt->sw_version), 342 evt->mac, wil->n_mids); 343 /* ignore MAC address, we already have it from the boot loader */ 344 strlcpy(wdev->wiphy->fw_version, wil->fw_version, 345 sizeof(wdev->wiphy->fw_version)); 346 347 wil_set_recovery_state(wil, fw_recovery_idle); 348 set_bit(wil_status_fwready, wil->status); 349 /* let the reset sequence continue */ 350 complete(&wil->wmi_ready); 351 } 352 353 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 354 { 355 struct wmi_rx_mgmt_packet_event *data = d; 356 struct wiphy *wiphy = wil_to_wiphy(wil); 357 struct ieee80211_mgmt *rx_mgmt_frame = 358 (struct ieee80211_mgmt *)data->payload; 359 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload); 360 int ch_no; 361 u32 freq; 362 struct ieee80211_channel *channel; 363 s32 signal; 364 __le16 fc; 365 u32 d_len; 366 u16 d_status; 367 368 if (flen < 0) { 369 wil_err(wil, "MGMT Rx: short event, len %d\n", len); 370 return; 371 } 372 373 d_len = le32_to_cpu(data->info.len); 374 if (d_len != flen) { 375 wil_err(wil, 376 "MGMT Rx: length mismatch, d_len %d should be %d\n", 377 d_len, flen); 378 return; 379 } 380 381 ch_no = data->info.channel + 1; 382 freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ); 383 channel = ieee80211_get_channel(wiphy, freq); 384 signal = data->info.sqi; 385 d_status = le16_to_cpu(data->info.status); 386 fc = rx_mgmt_frame->frame_control; 387 388 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n", 389 data->info.channel, data->info.mcs, data->info.snr, 390 data->info.sqi); 391 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 392 le16_to_cpu(fc)); 393 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 394 data->info.qid, data->info.mid, data->info.cid); 395 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, 396 d_len, true); 397 398 if (!channel) { 399 wil_err(wil, "Frame on unsupported channel\n"); 400 return; 401 } 402 403 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 404 struct cfg80211_bss *bss; 405 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 406 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 407 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 408 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 409 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 410 u.beacon.variable); 411 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 412 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 413 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 414 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 415 ie_len, true); 416 417 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 418 419 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 420 d_len, signal, GFP_KERNEL); 421 if (bss) { 422 wil_dbg_wmi(wil, "Added BSS %pM\n", 423 rx_mgmt_frame->bssid); 424 cfg80211_put_bss(wiphy, bss); 425 } else { 426 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 427 } 428 } else { 429 mutex_lock(&wil->p2p_wdev_mutex); 430 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal, 431 (void *)rx_mgmt_frame, d_len, 0); 432 mutex_unlock(&wil->p2p_wdev_mutex); 433 } 434 } 435 436 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 437 { 438 struct wmi_tx_mgmt_packet_event *data = d; 439 struct ieee80211_mgmt *mgmt_frame = 440 (struct ieee80211_mgmt *)data->payload; 441 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload); 442 443 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame, 444 flen, true); 445 } 446 447 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 448 void *d, int len) 449 { 450 mutex_lock(&wil->p2p_wdev_mutex); 451 if (wil->scan_request) { 452 struct wmi_scan_complete_event *data = d; 453 int status = le32_to_cpu(data->status); 454 struct cfg80211_scan_info info = { 455 .aborted = ((status != WMI_SCAN_SUCCESS) && 456 (status != WMI_SCAN_ABORT_REJECTED)), 457 }; 458 459 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", status); 460 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 461 wil->scan_request, info.aborted); 462 del_timer_sync(&wil->scan_timer); 463 cfg80211_scan_done(wil->scan_request, &info); 464 wil->radio_wdev = wil->wdev; 465 wil->scan_request = NULL; 466 wake_up_interruptible(&wil->wq); 467 if (wil->p2p.pending_listen_wdev) { 468 wil_dbg_misc(wil, "Scheduling delayed listen\n"); 469 schedule_work(&wil->p2p.delayed_listen_work); 470 } 471 } else { 472 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 473 } 474 mutex_unlock(&wil->p2p_wdev_mutex); 475 } 476 477 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 478 { 479 struct net_device *ndev = wil_to_ndev(wil); 480 struct wireless_dev *wdev = wil->wdev; 481 struct wmi_connect_event *evt = d; 482 int ch; /* channel number */ 483 struct station_info sinfo; 484 u8 *assoc_req_ie, *assoc_resp_ie; 485 size_t assoc_req_ielen, assoc_resp_ielen; 486 /* capinfo(u16) + listen_interval(u16) + IEs */ 487 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 488 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 489 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 490 int rc; 491 492 if (len < sizeof(*evt)) { 493 wil_err(wil, "Connect event too short : %d bytes\n", len); 494 return; 495 } 496 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 497 evt->assoc_resp_len) { 498 wil_err(wil, 499 "Connect event corrupted : %d != %d + %d + %d + %d\n", 500 len, (int)sizeof(*evt), evt->beacon_ie_len, 501 evt->assoc_req_len, evt->assoc_resp_len); 502 return; 503 } 504 if (evt->cid >= WIL6210_MAX_CID) { 505 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 506 return; 507 } 508 509 ch = evt->channel + 1; 510 wil_info(wil, "Connect %pM channel [%d] cid %d aid %d\n", 511 evt->bssid, ch, evt->cid, evt->aid); 512 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 513 evt->assoc_info, len - sizeof(*evt), true); 514 515 /* figure out IE's */ 516 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 517 assoc_req_ie_offset]; 518 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 519 if (evt->assoc_req_len <= assoc_req_ie_offset) { 520 assoc_req_ie = NULL; 521 assoc_req_ielen = 0; 522 } 523 524 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 525 evt->assoc_req_len + 526 assoc_resp_ie_offset]; 527 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 528 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 529 assoc_resp_ie = NULL; 530 assoc_resp_ielen = 0; 531 } 532 533 if (test_bit(wil_status_resetting, wil->status) || 534 !test_bit(wil_status_fwready, wil->status)) { 535 wil_err(wil, "status_resetting, cancel connect event, CID %d\n", 536 evt->cid); 537 /* no need for cleanup, wil_reset will do that */ 538 return; 539 } 540 541 mutex_lock(&wil->mutex); 542 543 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 544 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 545 if (!test_bit(wil_status_fwconnecting, wil->status)) { 546 wil_err(wil, "Not in connecting state\n"); 547 mutex_unlock(&wil->mutex); 548 return; 549 } 550 del_timer_sync(&wil->connect_timer); 551 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 552 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 553 if (wil->sta[evt->cid].status != wil_sta_unused) { 554 wil_err(wil, "AP: Invalid status %d for CID %d\n", 555 wil->sta[evt->cid].status, evt->cid); 556 mutex_unlock(&wil->mutex); 557 return; 558 } 559 } 560 561 /* FIXME FW can transmit only ucast frames to peer */ 562 /* FIXME real ring_id instead of hard coded 0 */ 563 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 564 wil->sta[evt->cid].status = wil_sta_conn_pending; 565 566 rc = wil_tx_init(wil, evt->cid); 567 if (rc) { 568 wil_err(wil, "config tx vring failed for CID %d, rc (%d)\n", 569 evt->cid, rc); 570 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr, 571 WLAN_REASON_UNSPECIFIED, false, false); 572 } else { 573 wil_info(wil, "successful connection to CID %d\n", evt->cid); 574 } 575 576 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 577 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 578 if (rc) { 579 netif_carrier_off(ndev); 580 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); 581 wil_err(wil, "cfg80211_connect_result with failure\n"); 582 cfg80211_connect_result(ndev, evt->bssid, NULL, 0, 583 NULL, 0, 584 WLAN_STATUS_UNSPECIFIED_FAILURE, 585 GFP_KERNEL); 586 goto out; 587 } else { 588 struct wiphy *wiphy = wil_to_wiphy(wil); 589 590 cfg80211_ref_bss(wiphy, wil->bss); 591 cfg80211_connect_bss(ndev, evt->bssid, wil->bss, 592 assoc_req_ie, assoc_req_ielen, 593 assoc_resp_ie, assoc_resp_ielen, 594 WLAN_STATUS_SUCCESS, GFP_KERNEL, 595 NL80211_TIMEOUT_UNSPECIFIED); 596 } 597 wil->bss = NULL; 598 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 599 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 600 if (rc) { 601 if (disable_ap_sme) 602 /* notify new_sta has failed */ 603 cfg80211_del_sta(ndev, evt->bssid, GFP_KERNEL); 604 goto out; 605 } 606 607 memset(&sinfo, 0, sizeof(sinfo)); 608 609 sinfo.generation = wil->sinfo_gen++; 610 611 if (assoc_req_ie) { 612 sinfo.assoc_req_ies = assoc_req_ie; 613 sinfo.assoc_req_ies_len = assoc_req_ielen; 614 } 615 616 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 617 } else { 618 wil_err(wil, "unhandled iftype %d for CID %d\n", wdev->iftype, 619 evt->cid); 620 goto out; 621 } 622 623 wil->sta[evt->cid].status = wil_sta_connected; 624 wil->sta[evt->cid].aid = evt->aid; 625 set_bit(wil_status_fwconnected, wil->status); 626 wil_update_net_queues_bh(wil, NULL, false); 627 628 out: 629 if (rc) 630 wil->sta[evt->cid].status = wil_sta_unused; 631 clear_bit(wil_status_fwconnecting, wil->status); 632 mutex_unlock(&wil->mutex); 633 } 634 635 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 636 void *d, int len) 637 { 638 struct wmi_disconnect_event *evt = d; 639 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 640 641 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 642 evt->bssid, reason_code, evt->disconnect_reason); 643 644 wil->sinfo_gen++; 645 646 if (test_bit(wil_status_resetting, wil->status) || 647 !test_bit(wil_status_fwready, wil->status)) { 648 wil_err(wil, "status_resetting, cancel disconnect event\n"); 649 /* no need for cleanup, wil_reset will do that */ 650 return; 651 } 652 653 mutex_lock(&wil->mutex); 654 wil6210_disconnect(wil, evt->bssid, reason_code, true); 655 mutex_unlock(&wil->mutex); 656 } 657 658 /* 659 * Firmware reports EAPOL frame using WME event. 660 * Reconstruct Ethernet frame and deliver it via normal Rx 661 */ 662 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 663 void *d, int len) 664 { 665 struct net_device *ndev = wil_to_ndev(wil); 666 struct wmi_eapol_rx_event *evt = d; 667 u16 eapol_len = le16_to_cpu(evt->eapol_len); 668 int sz = eapol_len + ETH_HLEN; 669 struct sk_buff *skb; 670 struct ethhdr *eth; 671 int cid; 672 struct wil_net_stats *stats = NULL; 673 674 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 675 evt->src_mac); 676 677 cid = wil_find_cid(wil, evt->src_mac); 678 if (cid >= 0) 679 stats = &wil->sta[cid].stats; 680 681 if (eapol_len > 196) { /* TODO: revisit size limit */ 682 wil_err(wil, "EAPOL too large\n"); 683 return; 684 } 685 686 skb = alloc_skb(sz, GFP_KERNEL); 687 if (!skb) { 688 wil_err(wil, "Failed to allocate skb\n"); 689 return; 690 } 691 692 eth = skb_put(skb, ETH_HLEN); 693 ether_addr_copy(eth->h_dest, ndev->dev_addr); 694 ether_addr_copy(eth->h_source, evt->src_mac); 695 eth->h_proto = cpu_to_be16(ETH_P_PAE); 696 skb_put_data(skb, evt->eapol, eapol_len); 697 skb->protocol = eth_type_trans(skb, ndev); 698 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 699 ndev->stats.rx_packets++; 700 ndev->stats.rx_bytes += sz; 701 if (stats) { 702 stats->rx_packets++; 703 stats->rx_bytes += sz; 704 } 705 } else { 706 ndev->stats.rx_dropped++; 707 if (stats) 708 stats->rx_dropped++; 709 } 710 } 711 712 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 713 { 714 struct wmi_vring_en_event *evt = d; 715 u8 vri = evt->vring_index; 716 struct wireless_dev *wdev = wil_to_wdev(wil); 717 718 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 719 720 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 721 wil_err(wil, "Enable for invalid vring %d\n", vri); 722 return; 723 } 724 725 if (wdev->iftype != NL80211_IFTYPE_AP || !disable_ap_sme) 726 /* in AP mode with disable_ap_sme, this is done by 727 * wil_cfg80211_change_station() 728 */ 729 wil->vring_tx_data[vri].dot1x_open = true; 730 if (vri == wil->bcast_vring) /* no BA for bcast */ 731 return; 732 if (agg_wsize >= 0) 733 wil_addba_tx_request(wil, vri, agg_wsize); 734 } 735 736 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 737 int len) 738 { 739 struct wmi_ba_status_event *evt = d; 740 struct vring_tx_data *txdata; 741 742 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 743 evt->ringid, 744 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 745 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 746 evt->amsdu ? "+" : "-"); 747 748 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 749 wil_err(wil, "invalid ring id %d\n", evt->ringid); 750 return; 751 } 752 753 if (evt->status != WMI_BA_AGREED) { 754 evt->ba_timeout = 0; 755 evt->agg_wsize = 0; 756 evt->amsdu = 0; 757 } 758 759 txdata = &wil->vring_tx_data[evt->ringid]; 760 761 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 762 txdata->agg_wsize = evt->agg_wsize; 763 txdata->agg_amsdu = evt->amsdu; 764 txdata->addba_in_progress = false; 765 } 766 767 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 768 int len) 769 { 770 struct wmi_rcp_addba_req_event *evt = d; 771 772 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 773 evt->ba_param_set, evt->ba_timeout, 774 evt->ba_seq_ctrl); 775 } 776 777 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 778 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 779 { 780 struct wmi_delba_event *evt = d; 781 u8 cid, tid; 782 u16 reason = __le16_to_cpu(evt->reason); 783 struct wil_sta_info *sta; 784 struct wil_tid_ampdu_rx *r; 785 786 might_sleep(); 787 parse_cidxtid(evt->cidxtid, &cid, &tid); 788 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 789 cid, tid, 790 evt->from_initiator ? "originator" : "recipient", 791 reason); 792 if (!evt->from_initiator) { 793 int i; 794 /* find Tx vring it belongs to */ 795 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 796 if ((wil->vring2cid_tid[i][0] == cid) && 797 (wil->vring2cid_tid[i][1] == tid)) { 798 struct vring_tx_data *txdata = 799 &wil->vring_tx_data[i]; 800 801 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 802 txdata->agg_timeout = 0; 803 txdata->agg_wsize = 0; 804 txdata->addba_in_progress = false; 805 806 break; /* max. 1 matching ring */ 807 } 808 } 809 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 810 wil_err(wil, "DELBA: unable to find Tx vring\n"); 811 return; 812 } 813 814 sta = &wil->sta[cid]; 815 816 spin_lock_bh(&sta->tid_rx_lock); 817 818 r = sta->tid_rx[tid]; 819 sta->tid_rx[tid] = NULL; 820 wil_tid_ampdu_rx_free(wil, r); 821 822 spin_unlock_bh(&sta->tid_rx_lock); 823 } 824 825 /** 826 * Some events are ignored for purpose; and need not be interpreted as 827 * "unhandled events" 828 */ 829 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 830 { 831 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 832 } 833 834 static const struct { 835 int eventid; 836 void (*handler)(struct wil6210_priv *wil, int eventid, 837 void *data, int data_len); 838 } wmi_evt_handlers[] = { 839 {WMI_READY_EVENTID, wmi_evt_ready}, 840 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 841 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 842 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 843 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 844 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 845 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 846 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 847 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 848 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 849 {WMI_DELBA_EVENTID, wmi_evt_delba}, 850 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 851 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 852 }; 853 854 /* 855 * Run in IRQ context 856 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 857 * that will be eventually handled by the @wmi_event_worker in the thread 858 * context of thread "wil6210_wmi" 859 */ 860 void wmi_recv_cmd(struct wil6210_priv *wil) 861 { 862 struct wil6210_mbox_ring_desc d_tail; 863 struct wil6210_mbox_hdr hdr; 864 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 865 struct pending_wmi_event *evt; 866 u8 *cmd; 867 void __iomem *src; 868 ulong flags; 869 unsigned n; 870 unsigned int num_immed_reply = 0; 871 872 if (!test_bit(wil_status_mbox_ready, wil->status)) { 873 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 874 return; 875 } 876 877 if (test_bit(wil_status_suspended, wil->status)) { 878 wil_err(wil, "suspended. cannot handle WMI event\n"); 879 return; 880 } 881 882 for (n = 0;; n++) { 883 u16 len; 884 bool q; 885 bool immed_reply = false; 886 887 r->head = wil_r(wil, RGF_MBOX + 888 offsetof(struct wil6210_mbox_ctl, rx.head)); 889 if (r->tail == r->head) 890 break; 891 892 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 893 r->head, r->tail); 894 /* read cmd descriptor from tail */ 895 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 896 sizeof(struct wil6210_mbox_ring_desc)); 897 if (d_tail.sync == 0) { 898 wil_err(wil, "Mbox evt not owned by FW?\n"); 899 break; 900 } 901 902 /* read cmd header from descriptor */ 903 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 904 wil_err(wil, "Mbox evt at 0x%08x?\n", 905 le32_to_cpu(d_tail.addr)); 906 break; 907 } 908 len = le16_to_cpu(hdr.len); 909 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 910 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 911 hdr.flags); 912 913 /* read cmd buffer from descriptor */ 914 src = wmi_buffer(wil, d_tail.addr) + 915 sizeof(struct wil6210_mbox_hdr); 916 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 917 event.wmi) + len, 4), 918 GFP_KERNEL); 919 if (!evt) 920 break; 921 922 evt->event.hdr = hdr; 923 cmd = (void *)&evt->event.wmi; 924 wil_memcpy_fromio_32(cmd, src, len); 925 /* mark entry as empty */ 926 wil_w(wil, r->tail + 927 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 928 /* indicate */ 929 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 930 (len >= sizeof(struct wmi_cmd_hdr))) { 931 struct wmi_cmd_hdr *wmi = &evt->event.wmi; 932 u16 id = le16_to_cpu(wmi->command_id); 933 u32 tstamp = le32_to_cpu(wmi->fw_timestamp); 934 if (test_bit(wil_status_resuming, wil->status)) { 935 if (id == WMI_TRAFFIC_RESUME_EVENTID) 936 clear_bit(wil_status_resuming, 937 wil->status); 938 else 939 wil_err(wil, 940 "WMI evt %d while resuming\n", 941 id); 942 } 943 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 944 if (wil->reply_id && wil->reply_id == id) { 945 if (wil->reply_buf) { 946 memcpy(wil->reply_buf, wmi, 947 min(len, wil->reply_size)); 948 immed_reply = true; 949 } 950 if (id == WMI_TRAFFIC_SUSPEND_EVENTID) { 951 wil_dbg_wmi(wil, 952 "set suspend_resp_rcvd\n"); 953 wil->suspend_resp_rcvd = true; 954 } 955 } 956 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 957 958 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 959 id, wmi->mid, tstamp); 960 trace_wil6210_wmi_event(wmi, &wmi[1], 961 len - sizeof(*wmi)); 962 } 963 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 964 &evt->event.hdr, sizeof(hdr) + len, true); 965 966 /* advance tail */ 967 r->tail = r->base + ((r->tail - r->base + 968 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 969 wil_w(wil, RGF_MBOX + 970 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 971 972 if (immed_reply) { 973 wil_dbg_wmi(wil, "recv_cmd: Complete WMI 0x%04x\n", 974 wil->reply_id); 975 kfree(evt); 976 num_immed_reply++; 977 complete(&wil->wmi_call); 978 } else { 979 /* add to the pending list */ 980 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 981 list_add_tail(&evt->list, &wil->pending_wmi_ev); 982 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 983 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 984 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 985 } 986 } 987 /* normally, 1 event per IRQ should be processed */ 988 wil_dbg_wmi(wil, "recv_cmd: -> %d events queued, %d completed\n", 989 n - num_immed_reply, num_immed_reply); 990 } 991 992 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 993 u16 reply_id, void *reply, u8 reply_size, int to_msec) 994 { 995 int rc; 996 unsigned long remain; 997 998 mutex_lock(&wil->wmi_mutex); 999 1000 spin_lock(&wil->wmi_ev_lock); 1001 wil->reply_id = reply_id; 1002 wil->reply_buf = reply; 1003 wil->reply_size = reply_size; 1004 reinit_completion(&wil->wmi_call); 1005 spin_unlock(&wil->wmi_ev_lock); 1006 1007 rc = __wmi_send(wil, cmdid, buf, len); 1008 if (rc) 1009 goto out; 1010 1011 remain = wait_for_completion_timeout(&wil->wmi_call, 1012 msecs_to_jiffies(to_msec)); 1013 if (0 == remain) { 1014 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 1015 cmdid, reply_id, to_msec); 1016 rc = -ETIME; 1017 } else { 1018 wil_dbg_wmi(wil, 1019 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 1020 cmdid, reply_id, 1021 to_msec - jiffies_to_msecs(remain)); 1022 } 1023 1024 out: 1025 spin_lock(&wil->wmi_ev_lock); 1026 wil->reply_id = 0; 1027 wil->reply_buf = NULL; 1028 wil->reply_size = 0; 1029 spin_unlock(&wil->wmi_ev_lock); 1030 1031 mutex_unlock(&wil->wmi_mutex); 1032 1033 return rc; 1034 } 1035 1036 int wmi_echo(struct wil6210_priv *wil) 1037 { 1038 struct wmi_echo_cmd cmd = { 1039 .value = cpu_to_le32(0x12345678), 1040 }; 1041 1042 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 1043 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 1044 } 1045 1046 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 1047 { 1048 struct wmi_set_mac_address_cmd cmd; 1049 1050 ether_addr_copy(cmd.mac, addr); 1051 1052 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 1053 1054 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 1055 } 1056 1057 int wmi_led_cfg(struct wil6210_priv *wil, bool enable) 1058 { 1059 int rc = 0; 1060 struct wmi_led_cfg_cmd cmd = { 1061 .led_mode = enable, 1062 .id = led_id, 1063 .slow_blink_cfg.blink_on = 1064 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms), 1065 .slow_blink_cfg.blink_off = 1066 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms), 1067 .medium_blink_cfg.blink_on = 1068 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms), 1069 .medium_blink_cfg.blink_off = 1070 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms), 1071 .fast_blink_cfg.blink_on = 1072 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms), 1073 .fast_blink_cfg.blink_off = 1074 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms), 1075 .led_polarity = led_polarity, 1076 }; 1077 struct { 1078 struct wmi_cmd_hdr wmi; 1079 struct wmi_led_cfg_done_event evt; 1080 } __packed reply; 1081 1082 if (led_id == WIL_LED_INVALID_ID) 1083 goto out; 1084 1085 if (led_id > WIL_LED_MAX_ID) { 1086 wil_err(wil, "Invalid led id %d\n", led_id); 1087 rc = -EINVAL; 1088 goto out; 1089 } 1090 1091 wil_dbg_wmi(wil, 1092 "%s led %d\n", 1093 enable ? "enabling" : "disabling", led_id); 1094 1095 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd), 1096 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply), 1097 100); 1098 if (rc) 1099 goto out; 1100 1101 if (reply.evt.status) { 1102 wil_err(wil, "led %d cfg failed with status %d\n", 1103 led_id, le32_to_cpu(reply.evt.status)); 1104 rc = -EINVAL; 1105 } 1106 1107 out: 1108 return rc; 1109 } 1110 1111 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 1112 u8 chan, u8 hidden_ssid, u8 is_go) 1113 { 1114 int rc; 1115 1116 struct wmi_pcp_start_cmd cmd = { 1117 .bcon_interval = cpu_to_le16(bi), 1118 .network_type = wmi_nettype, 1119 .disable_sec_offload = 1, 1120 .channel = chan - 1, 1121 .pcp_max_assoc_sta = max_assoc_sta, 1122 .hidden_ssid = hidden_ssid, 1123 .is_go = is_go, 1124 .disable_ap_sme = disable_ap_sme, 1125 .abft_len = wil->abft_len, 1126 }; 1127 struct { 1128 struct wmi_cmd_hdr wmi; 1129 struct wmi_pcp_started_event evt; 1130 } __packed reply; 1131 1132 if (!wil->privacy) 1133 cmd.disable_sec = 1; 1134 1135 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 1136 (cmd.pcp_max_assoc_sta <= 0)) { 1137 wil_info(wil, 1138 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 1139 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 1140 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 1141 } 1142 1143 if (disable_ap_sme && 1144 !test_bit(WMI_FW_CAPABILITY_DISABLE_AP_SME, 1145 wil->fw_capabilities)) { 1146 wil_err(wil, "disable_ap_sme not supported by FW\n"); 1147 return -EOPNOTSUPP; 1148 } 1149 1150 /* 1151 * Processing time may be huge, in case of secure AP it takes about 1152 * 3500ms for FW to start AP 1153 */ 1154 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 1155 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 1156 if (rc) 1157 return rc; 1158 1159 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 1160 rc = -EINVAL; 1161 1162 if (wmi_nettype != WMI_NETTYPE_P2P) 1163 /* Don't fail due to error in the led configuration */ 1164 wmi_led_cfg(wil, true); 1165 1166 return rc; 1167 } 1168 1169 int wmi_pcp_stop(struct wil6210_priv *wil) 1170 { 1171 int rc; 1172 1173 rc = wmi_led_cfg(wil, false); 1174 if (rc) 1175 return rc; 1176 1177 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 1178 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 1179 } 1180 1181 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 1182 { 1183 struct wmi_set_ssid_cmd cmd = { 1184 .ssid_len = cpu_to_le32(ssid_len), 1185 }; 1186 1187 if (ssid_len > sizeof(cmd.ssid)) 1188 return -EINVAL; 1189 1190 memcpy(cmd.ssid, ssid, ssid_len); 1191 1192 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 1193 } 1194 1195 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 1196 { 1197 int rc; 1198 struct { 1199 struct wmi_cmd_hdr wmi; 1200 struct wmi_set_ssid_cmd cmd; 1201 } __packed reply; 1202 int len; /* reply.cmd.ssid_len in CPU order */ 1203 1204 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 1205 &reply, sizeof(reply), 20); 1206 if (rc) 1207 return rc; 1208 1209 len = le32_to_cpu(reply.cmd.ssid_len); 1210 if (len > sizeof(reply.cmd.ssid)) 1211 return -EINVAL; 1212 1213 *ssid_len = len; 1214 memcpy(ssid, reply.cmd.ssid, len); 1215 1216 return 0; 1217 } 1218 1219 int wmi_set_channel(struct wil6210_priv *wil, int channel) 1220 { 1221 struct wmi_set_pcp_channel_cmd cmd = { 1222 .channel = channel - 1, 1223 }; 1224 1225 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 1226 } 1227 1228 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 1229 { 1230 int rc; 1231 struct { 1232 struct wmi_cmd_hdr wmi; 1233 struct wmi_set_pcp_channel_cmd cmd; 1234 } __packed reply; 1235 1236 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 1237 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 1238 if (rc) 1239 return rc; 1240 1241 if (reply.cmd.channel > 3) 1242 return -EINVAL; 1243 1244 *channel = reply.cmd.channel + 1; 1245 1246 return 0; 1247 } 1248 1249 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi) 1250 { 1251 int rc; 1252 struct wmi_p2p_cfg_cmd cmd = { 1253 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER, 1254 .bcon_interval = cpu_to_le16(bi), 1255 .channel = channel - 1, 1256 }; 1257 struct { 1258 struct wmi_cmd_hdr wmi; 1259 struct wmi_p2p_cfg_done_event evt; 1260 } __packed reply; 1261 1262 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n"); 1263 1264 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd), 1265 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300); 1266 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1267 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status); 1268 rc = -EINVAL; 1269 } 1270 1271 return rc; 1272 } 1273 1274 int wmi_start_listen(struct wil6210_priv *wil) 1275 { 1276 int rc; 1277 struct { 1278 struct wmi_cmd_hdr wmi; 1279 struct wmi_listen_started_event evt; 1280 } __packed reply; 1281 1282 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n"); 1283 1284 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1285 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300); 1286 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1287 wil_err(wil, "device failed to start listen. status %d\n", 1288 reply.evt.status); 1289 rc = -EINVAL; 1290 } 1291 1292 return rc; 1293 } 1294 1295 int wmi_start_search(struct wil6210_priv *wil) 1296 { 1297 int rc; 1298 struct { 1299 struct wmi_cmd_hdr wmi; 1300 struct wmi_search_started_event evt; 1301 } __packed reply; 1302 1303 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n"); 1304 1305 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0, 1306 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300); 1307 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1308 wil_err(wil, "device failed to start search. status %d\n", 1309 reply.evt.status); 1310 rc = -EINVAL; 1311 } 1312 1313 return rc; 1314 } 1315 1316 int wmi_stop_discovery(struct wil6210_priv *wil) 1317 { 1318 int rc; 1319 1320 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n"); 1321 1322 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1323 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100); 1324 1325 if (rc) 1326 wil_err(wil, "Failed to stop discovery\n"); 1327 1328 return rc; 1329 } 1330 1331 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 1332 const void *mac_addr, int key_usage) 1333 { 1334 struct wmi_delete_cipher_key_cmd cmd = { 1335 .key_index = key_index, 1336 }; 1337 1338 if (mac_addr) 1339 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1340 1341 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1342 } 1343 1344 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1345 const void *mac_addr, int key_len, const void *key, 1346 int key_usage) 1347 { 1348 struct wmi_add_cipher_key_cmd cmd = { 1349 .key_index = key_index, 1350 .key_usage = key_usage, 1351 .key_len = key_len, 1352 }; 1353 1354 if (!key || (key_len > sizeof(cmd.key))) 1355 return -EINVAL; 1356 1357 memcpy(cmd.key, key, key_len); 1358 if (mac_addr) 1359 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1360 1361 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1362 } 1363 1364 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1365 { 1366 static const char *const names[] = { 1367 [WMI_FRAME_BEACON] = "BEACON", 1368 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1369 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1370 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1371 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1372 }; 1373 int rc; 1374 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1375 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1376 1377 if (!cmd) { 1378 rc = -ENOMEM; 1379 goto out; 1380 } 1381 if (!ie) 1382 ie_len = 0; 1383 1384 cmd->mgmt_frm_type = type; 1385 /* BUG: FW API define ieLen as u8. Will fix FW */ 1386 cmd->ie_len = cpu_to_le16(ie_len); 1387 memcpy(cmd->ie_info, ie, ie_len); 1388 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1389 kfree(cmd); 1390 out: 1391 if (rc) { 1392 const char *name = type < ARRAY_SIZE(names) ? 1393 names[type] : "??"; 1394 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1395 } 1396 1397 return rc; 1398 } 1399 1400 /** 1401 * wmi_rxon - turn radio on/off 1402 * @on: turn on if true, off otherwise 1403 * 1404 * Only switch radio. Channel should be set separately. 1405 * No timeout for rxon - radio turned on forever unless some other call 1406 * turns it off 1407 */ 1408 int wmi_rxon(struct wil6210_priv *wil, bool on) 1409 { 1410 int rc; 1411 struct { 1412 struct wmi_cmd_hdr wmi; 1413 struct wmi_listen_started_event evt; 1414 } __packed reply; 1415 1416 wil_info(wil, "(%s)\n", on ? "on" : "off"); 1417 1418 if (on) { 1419 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1420 WMI_LISTEN_STARTED_EVENTID, 1421 &reply, sizeof(reply), 100); 1422 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1423 rc = -EINVAL; 1424 } else { 1425 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1426 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1427 } 1428 1429 return rc; 1430 } 1431 1432 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1433 { 1434 struct wireless_dev *wdev = wil->wdev; 1435 struct net_device *ndev = wil_to_ndev(wil); 1436 struct wmi_cfg_rx_chain_cmd cmd = { 1437 .action = WMI_RX_CHAIN_ADD, 1438 .rx_sw_ring = { 1439 .max_mpdu_size = cpu_to_le16( 1440 wil_mtu2macbuf(wil->rx_buf_len)), 1441 .ring_mem_base = cpu_to_le64(vring->pa), 1442 .ring_size = cpu_to_le16(vring->size), 1443 }, 1444 .mid = 0, /* TODO - what is it? */ 1445 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1446 .reorder_type = WMI_RX_SW_REORDER, 1447 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1448 }; 1449 struct { 1450 struct wmi_cmd_hdr wmi; 1451 struct wmi_cfg_rx_chain_done_event evt; 1452 } __packed evt; 1453 int rc; 1454 1455 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1456 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1457 1458 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1459 if (ch) 1460 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1461 cmd.sniffer_cfg.phy_info_mode = 1462 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1463 cmd.sniffer_cfg.phy_support = 1464 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1465 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1466 } else { 1467 /* Initialize offload (in non-sniffer mode). 1468 * Linux IP stack always calculates IP checksum 1469 * HW always calculate TCP/UDP checksum 1470 */ 1471 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1472 } 1473 1474 if (rx_align_2) 1475 cmd.l2_802_3_offload_ctrl |= 1476 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1477 1478 /* typical time for secure PCP is 840ms */ 1479 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1480 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1481 if (rc) 1482 return rc; 1483 1484 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1485 1486 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1487 le32_to_cpu(evt.evt.status), vring->hwtail); 1488 1489 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1490 rc = -EINVAL; 1491 1492 return rc; 1493 } 1494 1495 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1496 { 1497 int rc; 1498 struct wmi_temp_sense_cmd cmd = { 1499 .measure_baseband_en = cpu_to_le32(!!t_bb), 1500 .measure_rf_en = cpu_to_le32(!!t_rf), 1501 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1502 }; 1503 struct { 1504 struct wmi_cmd_hdr wmi; 1505 struct wmi_temp_sense_done_event evt; 1506 } __packed reply; 1507 1508 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1509 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1510 if (rc) 1511 return rc; 1512 1513 if (t_bb) 1514 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1515 if (t_rf) 1516 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1517 1518 return 0; 1519 } 1520 1521 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, 1522 u16 reason, bool full_disconnect, bool del_sta) 1523 { 1524 int rc; 1525 u16 reason_code; 1526 struct wmi_disconnect_sta_cmd disc_sta_cmd = { 1527 .disconnect_reason = cpu_to_le16(reason), 1528 }; 1529 struct wmi_del_sta_cmd del_sta_cmd = { 1530 .disconnect_reason = cpu_to_le16(reason), 1531 }; 1532 struct { 1533 struct wmi_cmd_hdr wmi; 1534 struct wmi_disconnect_event evt; 1535 } __packed reply; 1536 1537 wil_dbg_wmi(wil, "disconnect_sta: (%pM, reason %d)\n", mac, reason); 1538 1539 wil->locally_generated_disc = true; 1540 if (del_sta) { 1541 ether_addr_copy(del_sta_cmd.dst_mac, mac); 1542 rc = wmi_call(wil, WMI_DEL_STA_CMDID, &del_sta_cmd, 1543 sizeof(del_sta_cmd), WMI_DISCONNECT_EVENTID, 1544 &reply, sizeof(reply), 1000); 1545 } else { 1546 ether_addr_copy(disc_sta_cmd.dst_mac, mac); 1547 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &disc_sta_cmd, 1548 sizeof(disc_sta_cmd), WMI_DISCONNECT_EVENTID, 1549 &reply, sizeof(reply), 1000); 1550 } 1551 /* failure to disconnect in reasonable time treated as FW error */ 1552 if (rc) { 1553 wil_fw_error_recovery(wil); 1554 return rc; 1555 } 1556 1557 if (full_disconnect) { 1558 /* call event handler manually after processing wmi_call, 1559 * to avoid deadlock - disconnect event handler acquires 1560 * wil->mutex while it is already held here 1561 */ 1562 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1563 1564 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1565 reply.evt.bssid, reason_code, 1566 reply.evt.disconnect_reason); 1567 1568 wil->sinfo_gen++; 1569 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1570 } 1571 return 0; 1572 } 1573 1574 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1575 { 1576 struct wmi_vring_ba_en_cmd cmd = { 1577 .ringid = ringid, 1578 .agg_max_wsize = size, 1579 .ba_timeout = cpu_to_le16(timeout), 1580 .amsdu = 0, 1581 }; 1582 1583 wil_dbg_wmi(wil, "addba: (ring %d size %d timeout %d)\n", ringid, size, 1584 timeout); 1585 1586 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1587 } 1588 1589 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1590 { 1591 struct wmi_vring_ba_dis_cmd cmd = { 1592 .ringid = ringid, 1593 .reason = cpu_to_le16(reason), 1594 }; 1595 1596 wil_dbg_wmi(wil, "delba_tx: (ring %d reason %d)\n", ringid, reason); 1597 1598 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1599 } 1600 1601 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1602 { 1603 struct wmi_rcp_delba_cmd cmd = { 1604 .cidxtid = cidxtid, 1605 .reason = cpu_to_le16(reason), 1606 }; 1607 1608 wil_dbg_wmi(wil, "delba_rx: (CID %d TID %d reason %d)\n", cidxtid & 0xf, 1609 (cidxtid >> 4) & 0xf, reason); 1610 1611 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1612 } 1613 1614 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1615 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1616 { 1617 int rc; 1618 struct wmi_rcp_addba_resp_cmd cmd = { 1619 .cidxtid = mk_cidxtid(cid, tid), 1620 .dialog_token = token, 1621 .status_code = cpu_to_le16(status), 1622 /* bit 0: A-MSDU supported 1623 * bit 1: policy (should be 0 for us) 1624 * bits 2..5: TID 1625 * bits 6..15: buffer size 1626 */ 1627 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1628 (agg_wsize << 6)), 1629 .ba_timeout = cpu_to_le16(timeout), 1630 }; 1631 struct { 1632 struct wmi_cmd_hdr wmi; 1633 struct wmi_rcp_addba_resp_sent_event evt; 1634 } __packed reply; 1635 1636 wil_dbg_wmi(wil, 1637 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1638 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1639 1640 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1641 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1642 100); 1643 if (rc) 1644 return rc; 1645 1646 if (reply.evt.status) { 1647 wil_err(wil, "ADDBA response failed with status %d\n", 1648 le16_to_cpu(reply.evt.status)); 1649 rc = -EINVAL; 1650 } 1651 1652 return rc; 1653 } 1654 1655 int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil, 1656 enum wmi_ps_profile_type ps_profile) 1657 { 1658 int rc; 1659 struct wmi_ps_dev_profile_cfg_cmd cmd = { 1660 .ps_profile = ps_profile, 1661 }; 1662 struct { 1663 struct wmi_cmd_hdr wmi; 1664 struct wmi_ps_dev_profile_cfg_event evt; 1665 } __packed reply; 1666 u32 status; 1667 1668 wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile); 1669 1670 reply.evt.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR); 1671 1672 rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, &cmd, sizeof(cmd), 1673 WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply), 1674 100); 1675 if (rc) 1676 return rc; 1677 1678 status = le32_to_cpu(reply.evt.status); 1679 1680 if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) { 1681 wil_err(wil, "ps dev profile cfg failed with status %d\n", 1682 status); 1683 rc = -EINVAL; 1684 } 1685 1686 return rc; 1687 } 1688 1689 int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short) 1690 { 1691 int rc; 1692 struct wmi_set_mgmt_retry_limit_cmd cmd = { 1693 .mgmt_retry_limit = retry_short, 1694 }; 1695 struct { 1696 struct wmi_cmd_hdr wmi; 1697 struct wmi_set_mgmt_retry_limit_event evt; 1698 } __packed reply; 1699 1700 wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short); 1701 1702 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1703 return -ENOTSUPP; 1704 1705 reply.evt.status = WMI_FW_STATUS_FAILURE; 1706 1707 rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, &cmd, sizeof(cmd), 1708 WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1709 100); 1710 if (rc) 1711 return rc; 1712 1713 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1714 wil_err(wil, "set mgmt retry limit failed with status %d\n", 1715 reply.evt.status); 1716 rc = -EINVAL; 1717 } 1718 1719 return rc; 1720 } 1721 1722 int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short) 1723 { 1724 int rc; 1725 struct { 1726 struct wmi_cmd_hdr wmi; 1727 struct wmi_get_mgmt_retry_limit_event evt; 1728 } __packed reply; 1729 1730 wil_dbg_wmi(wil, "getting mgmt retry short\n"); 1731 1732 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities)) 1733 return -ENOTSUPP; 1734 1735 reply.evt.mgmt_retry_limit = 0; 1736 rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, NULL, 0, 1737 WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply), 1738 100); 1739 if (rc) 1740 return rc; 1741 1742 if (retry_short) 1743 *retry_short = reply.evt.mgmt_retry_limit; 1744 1745 return 0; 1746 } 1747 1748 int wmi_abort_scan(struct wil6210_priv *wil) 1749 { 1750 int rc; 1751 1752 wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n"); 1753 1754 rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, NULL, 0); 1755 if (rc) 1756 wil_err(wil, "Failed to abort scan (%d)\n", rc); 1757 1758 return rc; 1759 } 1760 1761 int wmi_new_sta(struct wil6210_priv *wil, const u8 *mac, u8 aid) 1762 { 1763 int rc; 1764 struct wmi_new_sta_cmd cmd = { 1765 .aid = aid, 1766 }; 1767 1768 wil_dbg_wmi(wil, "new sta %pM, aid %d\n", mac, aid); 1769 1770 ether_addr_copy(cmd.dst_mac, mac); 1771 1772 rc = wmi_send(wil, WMI_NEW_STA_CMDID, &cmd, sizeof(cmd)); 1773 if (rc) 1774 wil_err(wil, "Failed to send new sta (%d)\n", rc); 1775 1776 return rc; 1777 } 1778 1779 void wmi_event_flush(struct wil6210_priv *wil) 1780 { 1781 ulong flags; 1782 struct pending_wmi_event *evt, *t; 1783 1784 wil_dbg_wmi(wil, "event_flush\n"); 1785 1786 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1787 1788 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1789 list_del(&evt->list); 1790 kfree(evt); 1791 } 1792 1793 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1794 } 1795 1796 int wmi_suspend(struct wil6210_priv *wil) 1797 { 1798 int rc; 1799 struct wmi_traffic_suspend_cmd cmd = { 1800 .wakeup_trigger = wil->wakeup_trigger, 1801 }; 1802 struct { 1803 struct wmi_cmd_hdr wmi; 1804 struct wmi_traffic_suspend_event evt; 1805 } __packed reply; 1806 u32 suspend_to = WIL_WAIT_FOR_SUSPEND_RESUME_COMP; 1807 1808 wil->suspend_resp_rcvd = false; 1809 wil->suspend_resp_comp = false; 1810 1811 reply.evt.status = WMI_TRAFFIC_SUSPEND_REJECTED; 1812 1813 rc = wmi_call(wil, WMI_TRAFFIC_SUSPEND_CMDID, &cmd, sizeof(cmd), 1814 WMI_TRAFFIC_SUSPEND_EVENTID, &reply, sizeof(reply), 1815 suspend_to); 1816 if (rc) { 1817 wil_err(wil, "wmi_call for suspend req failed, rc=%d\n", rc); 1818 if (rc == -ETIME) 1819 /* wmi_call TO */ 1820 wil->suspend_stats.rejected_by_device++; 1821 else 1822 wil->suspend_stats.rejected_by_host++; 1823 goto out; 1824 } 1825 1826 wil_dbg_wmi(wil, "waiting for suspend_response_completed\n"); 1827 1828 rc = wait_event_interruptible_timeout(wil->wq, 1829 wil->suspend_resp_comp, 1830 msecs_to_jiffies(suspend_to)); 1831 if (rc == 0) { 1832 wil_err(wil, "TO waiting for suspend_response_completed\n"); 1833 if (wil->suspend_resp_rcvd) 1834 /* Device responded but we TO due to another reason */ 1835 wil->suspend_stats.rejected_by_host++; 1836 else 1837 wil->suspend_stats.rejected_by_device++; 1838 rc = -EBUSY; 1839 goto out; 1840 } 1841 1842 wil_dbg_wmi(wil, "suspend_response_completed rcvd\n"); 1843 if (reply.evt.status == WMI_TRAFFIC_SUSPEND_REJECTED) { 1844 wil_dbg_pm(wil, "device rejected the suspend\n"); 1845 wil->suspend_stats.rejected_by_device++; 1846 } 1847 rc = reply.evt.status; 1848 1849 out: 1850 wil->suspend_resp_rcvd = false; 1851 wil->suspend_resp_comp = false; 1852 1853 return rc; 1854 } 1855 1856 int wmi_resume(struct wil6210_priv *wil) 1857 { 1858 int rc; 1859 struct { 1860 struct wmi_cmd_hdr wmi; 1861 struct wmi_traffic_resume_event evt; 1862 } __packed reply; 1863 1864 reply.evt.status = WMI_TRAFFIC_RESUME_FAILED; 1865 1866 rc = wmi_call(wil, WMI_TRAFFIC_RESUME_CMDID, NULL, 0, 1867 WMI_TRAFFIC_RESUME_EVENTID, &reply, sizeof(reply), 1868 WIL_WAIT_FOR_SUSPEND_RESUME_COMP); 1869 if (rc) 1870 return rc; 1871 1872 return reply.evt.status; 1873 } 1874 1875 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1876 void *d, int len) 1877 { 1878 uint i; 1879 1880 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1881 if (wmi_evt_handlers[i].eventid == id) { 1882 wmi_evt_handlers[i].handler(wil, id, d, len); 1883 return true; 1884 } 1885 } 1886 1887 return false; 1888 } 1889 1890 static void wmi_event_handle(struct wil6210_priv *wil, 1891 struct wil6210_mbox_hdr *hdr) 1892 { 1893 u16 len = le16_to_cpu(hdr->len); 1894 1895 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1896 (len >= sizeof(struct wmi_cmd_hdr))) { 1897 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]); 1898 void *evt_data = (void *)(&wmi[1]); 1899 u16 id = le16_to_cpu(wmi->command_id); 1900 1901 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1902 id, wil->reply_id); 1903 /* check if someone waits for this event */ 1904 if (wil->reply_id && wil->reply_id == id) { 1905 WARN_ON(wil->reply_buf); 1906 wmi_evt_call_handler(wil, id, evt_data, 1907 len - sizeof(*wmi)); 1908 wil_dbg_wmi(wil, "event_handle: Complete WMI 0x%04x\n", 1909 id); 1910 complete(&wil->wmi_call); 1911 return; 1912 } 1913 /* unsolicited event */ 1914 /* search for handler */ 1915 if (!wmi_evt_call_handler(wil, id, evt_data, 1916 len - sizeof(*wmi))) { 1917 wil_info(wil, "Unhandled event 0x%04x\n", id); 1918 } 1919 } else { 1920 wil_err(wil, "Unknown event type\n"); 1921 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1922 hdr, sizeof(*hdr) + len, true); 1923 } 1924 } 1925 1926 /* 1927 * Retrieve next WMI event from the pending list 1928 */ 1929 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1930 { 1931 ulong flags; 1932 struct list_head *ret = NULL; 1933 1934 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1935 1936 if (!list_empty(&wil->pending_wmi_ev)) { 1937 ret = wil->pending_wmi_ev.next; 1938 list_del(ret); 1939 } 1940 1941 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1942 1943 return ret; 1944 } 1945 1946 /* 1947 * Handler for the WMI events 1948 */ 1949 void wmi_event_worker(struct work_struct *work) 1950 { 1951 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1952 wmi_event_worker); 1953 struct pending_wmi_event *evt; 1954 struct list_head *lh; 1955 1956 wil_dbg_wmi(wil, "event_worker: Start\n"); 1957 while ((lh = next_wmi_ev(wil)) != NULL) { 1958 evt = list_entry(lh, struct pending_wmi_event, list); 1959 wmi_event_handle(wil, &evt->event.hdr); 1960 kfree(evt); 1961 } 1962 wil_dbg_wmi(wil, "event_worker: Finished\n"); 1963 } 1964 1965 bool wil_is_wmi_idle(struct wil6210_priv *wil) 1966 { 1967 ulong flags; 1968 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 1969 bool rc = false; 1970 1971 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1972 1973 /* Check if there are pending WMI events in the events queue */ 1974 if (!list_empty(&wil->pending_wmi_ev)) { 1975 wil_dbg_pm(wil, "Pending WMI events in queue\n"); 1976 goto out; 1977 } 1978 1979 /* Check if there is a pending WMI call */ 1980 if (wil->reply_id) { 1981 wil_dbg_pm(wil, "Pending WMI call\n"); 1982 goto out; 1983 } 1984 1985 /* Check if there are pending RX events in mbox */ 1986 r->head = wil_r(wil, RGF_MBOX + 1987 offsetof(struct wil6210_mbox_ctl, rx.head)); 1988 if (r->tail != r->head) 1989 wil_dbg_pm(wil, "Pending WMI mbox events\n"); 1990 else 1991 rc = true; 1992 1993 out: 1994 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1995 return rc; 1996 } 1997