1 /* 2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/moduleparam.h> 18 #include <linux/etherdevice.h> 19 #include <linux/if_arp.h> 20 21 #include "wil6210.h" 22 #include "txrx.h" 23 #include "wmi.h" 24 #include "trace.h" 25 26 static uint max_assoc_sta = WIL6210_MAX_CID; 27 module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR); 28 MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP"); 29 30 int agg_wsize; /* = 0; */ 31 module_param(agg_wsize, int, S_IRUGO | S_IWUSR); 32 MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;" 33 " 0 - use default; < 0 - don't auto-establish"); 34 35 u8 led_id = WIL_LED_INVALID_ID; 36 module_param(led_id, byte, S_IRUGO); 37 MODULE_PARM_DESC(led_id, 38 " 60G device led enablement. Set the led ID (0-2) to enable"); 39 40 /** 41 * WMI event receiving - theory of operations 42 * 43 * When firmware about to report WMI event, it fills memory area 44 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for 45 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler. 46 * 47 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the 48 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up 49 * and handles events within the @wmi_event_worker. Every event get detached 50 * from list, processed and deleted. 51 * 52 * Purpose for this mechanism is to release IRQ thread; otherwise, 53 * if WMI event handling involves another WMI command flow, this 2-nd flow 54 * won't be completed because of blocked IRQ thread. 55 */ 56 57 /** 58 * Addressing - theory of operations 59 * 60 * There are several buses present on the WIL6210 card. 61 * Same memory areas are visible at different address on 62 * the different busses. There are 3 main bus masters: 63 * - MAC CPU (ucode) 64 * - User CPU (firmware) 65 * - AHB (host) 66 * 67 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing 68 * AHB addresses starting from 0x880000 69 * 70 * Internally, firmware uses addresses that allows faster access but 71 * are invisible from the host. To read from these addresses, alternative 72 * AHB address must be used. 73 * 74 * Memory mapping 75 * Linker address PCI/Host address 76 * 0x880000 .. 0xa80000 2Mb BAR0 77 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM 78 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH 79 */ 80 81 /** 82 * @fw_mapping provides memory remapping table 83 * 84 * array size should be in sync with the declaration in the wil6210.h 85 */ 86 const struct fw_map fw_mapping[] = { 87 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */ 88 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */ 89 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */ 90 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */ 91 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */ 92 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */ 93 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext"}, /* mac_ext_rgf 512b */ 94 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */ 95 /* 96 * 920000..930000 ucode code RAM 97 * 930000..932000 ucode data RAM 98 * 932000..949000 back-door debug data 99 */ 100 }; 101 102 struct blink_on_off_time led_blink_time[] = { 103 {WIL_LED_BLINK_ON_SLOW_MS, WIL_LED_BLINK_OFF_SLOW_MS}, 104 {WIL_LED_BLINK_ON_MED_MS, WIL_LED_BLINK_OFF_MED_MS}, 105 {WIL_LED_BLINK_ON_FAST_MS, WIL_LED_BLINK_OFF_FAST_MS}, 106 }; 107 108 u8 led_polarity = LED_POLARITY_LOW_ACTIVE; 109 110 /** 111 * return AHB address for given firmware/ucode internal (linker) address 112 * @x - internal address 113 * If address have no valid AHB mapping, return 0 114 */ 115 static u32 wmi_addr_remap(u32 x) 116 { 117 uint i; 118 119 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 120 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)) 121 return x + fw_mapping[i].host - fw_mapping[i].from; 122 } 123 124 return 0; 125 } 126 127 /** 128 * Check address validity for WMI buffer; remap if needed 129 * @ptr - internal (linker) fw/ucode address 130 * 131 * Valid buffer should be DWORD aligned 132 * 133 * return address for accessing buffer from the host; 134 * if buffer is not valid, return NULL. 135 */ 136 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_) 137 { 138 u32 off; 139 u32 ptr = le32_to_cpu(ptr_); 140 141 if (ptr % 4) 142 return NULL; 143 144 ptr = wmi_addr_remap(ptr); 145 if (ptr < WIL6210_FW_HOST_OFF) 146 return NULL; 147 148 off = HOSTADDR(ptr); 149 if (off > WIL6210_MEM_SIZE - 4) 150 return NULL; 151 152 return wil->csr + off; 153 } 154 155 /** 156 * Check address validity 157 */ 158 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr) 159 { 160 u32 off; 161 162 if (ptr % 4) 163 return NULL; 164 165 if (ptr < WIL6210_FW_HOST_OFF) 166 return NULL; 167 168 off = HOSTADDR(ptr); 169 if (off > WIL6210_MEM_SIZE - 4) 170 return NULL; 171 172 return wil->csr + off; 173 } 174 175 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, 176 struct wil6210_mbox_hdr *hdr) 177 { 178 void __iomem *src = wmi_buffer(wil, ptr); 179 180 if (!src) 181 return -EINVAL; 182 183 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr)); 184 185 return 0; 186 } 187 188 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 189 { 190 struct { 191 struct wil6210_mbox_hdr hdr; 192 struct wmi_cmd_hdr wmi; 193 } __packed cmd = { 194 .hdr = { 195 .type = WIL_MBOX_HDR_TYPE_WMI, 196 .flags = 0, 197 .len = cpu_to_le16(sizeof(cmd.wmi) + len), 198 }, 199 .wmi = { 200 .mid = 0, 201 .command_id = cpu_to_le16(cmdid), 202 }, 203 }; 204 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx; 205 struct wil6210_mbox_ring_desc d_head; 206 u32 next_head; 207 void __iomem *dst; 208 void __iomem *head = wmi_addr(wil, r->head); 209 uint retry; 210 int rc = 0; 211 212 if (sizeof(cmd) + len > r->entry_size) { 213 wil_err(wil, "WMI size too large: %d bytes, max is %d\n", 214 (int)(sizeof(cmd) + len), r->entry_size); 215 return -ERANGE; 216 } 217 218 might_sleep(); 219 220 if (!test_bit(wil_status_fwready, wil->status)) { 221 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 222 return -EAGAIN; 223 } 224 225 if (!head) { 226 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head); 227 return -EINVAL; 228 } 229 230 wil_halp_vote(wil); 231 232 /* read Tx head till it is not busy */ 233 for (retry = 5; retry > 0; retry--) { 234 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head)); 235 if (d_head.sync == 0) 236 break; 237 msleep(20); 238 } 239 if (d_head.sync != 0) { 240 wil_err(wil, "WMI head busy\n"); 241 rc = -EBUSY; 242 goto out; 243 } 244 /* next head */ 245 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size); 246 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head); 247 /* wait till FW finish with previous command */ 248 for (retry = 5; retry > 0; retry--) { 249 if (!test_bit(wil_status_fwready, wil->status)) { 250 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 251 rc = -EAGAIN; 252 goto out; 253 } 254 r->tail = wil_r(wil, RGF_MBOX + 255 offsetof(struct wil6210_mbox_ctl, tx.tail)); 256 if (next_head != r->tail) 257 break; 258 msleep(20); 259 } 260 if (next_head == r->tail) { 261 wil_err(wil, "WMI ring full\n"); 262 rc = -EBUSY; 263 goto out; 264 } 265 dst = wmi_buffer(wil, d_head.addr); 266 if (!dst) { 267 wil_err(wil, "invalid WMI buffer: 0x%08x\n", 268 le32_to_cpu(d_head.addr)); 269 rc = -EAGAIN; 270 goto out; 271 } 272 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); 273 /* set command */ 274 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len); 275 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, 276 sizeof(cmd), true); 277 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, 278 len, true); 279 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); 280 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); 281 /* mark entry as full */ 282 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1); 283 /* advance next ptr */ 284 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head), 285 r->head = next_head); 286 287 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 288 289 /* interrupt to FW */ 290 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS), 291 SW_INT_MBOX); 292 293 out: 294 wil_halp_unvote(wil); 295 return rc; 296 } 297 298 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 299 { 300 int rc; 301 302 mutex_lock(&wil->wmi_mutex); 303 rc = __wmi_send(wil, cmdid, buf, len); 304 mutex_unlock(&wil->wmi_mutex); 305 306 return rc; 307 } 308 309 /*=== Event handlers ===*/ 310 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 311 { 312 struct wireless_dev *wdev = wil->wdev; 313 struct wmi_ready_event *evt = d; 314 315 wil->fw_version = le32_to_cpu(evt->sw_version); 316 wil->n_mids = evt->numof_additional_mids; 317 318 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version, 319 evt->mac, wil->n_mids); 320 /* ignore MAC address, we already have it from the boot loader */ 321 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), 322 "%d", wil->fw_version); 323 324 wil_set_recovery_state(wil, fw_recovery_idle); 325 set_bit(wil_status_fwready, wil->status); 326 /* let the reset sequence continue */ 327 complete(&wil->wmi_ready); 328 } 329 330 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 331 { 332 struct wmi_rx_mgmt_packet_event *data = d; 333 struct wiphy *wiphy = wil_to_wiphy(wil); 334 struct ieee80211_mgmt *rx_mgmt_frame = 335 (struct ieee80211_mgmt *)data->payload; 336 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload); 337 int ch_no; 338 u32 freq; 339 struct ieee80211_channel *channel; 340 s32 signal; 341 __le16 fc; 342 u32 d_len; 343 u16 d_status; 344 345 if (flen < 0) { 346 wil_err(wil, "MGMT Rx: short event, len %d\n", len); 347 return; 348 } 349 350 d_len = le32_to_cpu(data->info.len); 351 if (d_len != flen) { 352 wil_err(wil, 353 "MGMT Rx: length mismatch, d_len %d should be %d\n", 354 d_len, flen); 355 return; 356 } 357 358 ch_no = data->info.channel + 1; 359 freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ); 360 channel = ieee80211_get_channel(wiphy, freq); 361 signal = data->info.sqi; 362 d_status = le16_to_cpu(data->info.status); 363 fc = rx_mgmt_frame->frame_control; 364 365 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n", 366 data->info.channel, data->info.mcs, data->info.snr, 367 data->info.sqi); 368 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 369 le16_to_cpu(fc)); 370 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 371 data->info.qid, data->info.mid, data->info.cid); 372 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, 373 d_len, true); 374 375 if (!channel) { 376 wil_err(wil, "Frame on unsupported channel\n"); 377 return; 378 } 379 380 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 381 struct cfg80211_bss *bss; 382 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 383 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 384 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 385 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 386 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 387 u.beacon.variable); 388 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 389 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 390 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 391 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 392 ie_len, true); 393 394 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 395 396 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 397 d_len, signal, GFP_KERNEL); 398 if (bss) { 399 wil_dbg_wmi(wil, "Added BSS %pM\n", 400 rx_mgmt_frame->bssid); 401 cfg80211_put_bss(wiphy, bss); 402 } else { 403 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 404 } 405 } else { 406 mutex_lock(&wil->p2p_wdev_mutex); 407 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal, 408 (void *)rx_mgmt_frame, d_len, 0); 409 mutex_unlock(&wil->p2p_wdev_mutex); 410 } 411 } 412 413 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 414 { 415 struct wmi_tx_mgmt_packet_event *data = d; 416 struct ieee80211_mgmt *mgmt_frame = 417 (struct ieee80211_mgmt *)data->payload; 418 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload); 419 420 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame, 421 flen, true); 422 } 423 424 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 425 void *d, int len) 426 { 427 if (wil->scan_request) { 428 struct wmi_scan_complete_event *data = d; 429 struct cfg80211_scan_info info = { 430 .aborted = (data->status != WMI_SCAN_SUCCESS), 431 }; 432 433 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 434 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 435 wil->scan_request, info.aborted); 436 437 del_timer_sync(&wil->scan_timer); 438 mutex_lock(&wil->p2p_wdev_mutex); 439 cfg80211_scan_done(wil->scan_request, &info); 440 wil->radio_wdev = wil->wdev; 441 mutex_unlock(&wil->p2p_wdev_mutex); 442 wil->scan_request = NULL; 443 } else { 444 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 445 } 446 } 447 448 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 449 { 450 struct net_device *ndev = wil_to_ndev(wil); 451 struct wireless_dev *wdev = wil->wdev; 452 struct wmi_connect_event *evt = d; 453 int ch; /* channel number */ 454 struct station_info sinfo; 455 u8 *assoc_req_ie, *assoc_resp_ie; 456 size_t assoc_req_ielen, assoc_resp_ielen; 457 /* capinfo(u16) + listen_interval(u16) + IEs */ 458 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 459 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 460 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 461 int rc; 462 463 if (len < sizeof(*evt)) { 464 wil_err(wil, "Connect event too short : %d bytes\n", len); 465 return; 466 } 467 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 468 evt->assoc_resp_len) { 469 wil_err(wil, 470 "Connect event corrupted : %d != %d + %d + %d + %d\n", 471 len, (int)sizeof(*evt), evt->beacon_ie_len, 472 evt->assoc_req_len, evt->assoc_resp_len); 473 return; 474 } 475 if (evt->cid >= WIL6210_MAX_CID) { 476 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 477 return; 478 } 479 480 ch = evt->channel + 1; 481 wil_info(wil, "Connect %pM channel [%d] cid %d\n", 482 evt->bssid, ch, evt->cid); 483 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 484 evt->assoc_info, len - sizeof(*evt), true); 485 486 /* figure out IE's */ 487 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 488 assoc_req_ie_offset]; 489 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 490 if (evt->assoc_req_len <= assoc_req_ie_offset) { 491 assoc_req_ie = NULL; 492 assoc_req_ielen = 0; 493 } 494 495 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 496 evt->assoc_req_len + 497 assoc_resp_ie_offset]; 498 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 499 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 500 assoc_resp_ie = NULL; 501 assoc_resp_ielen = 0; 502 } 503 504 mutex_lock(&wil->mutex); 505 if (test_bit(wil_status_resetting, wil->status) || 506 !test_bit(wil_status_fwready, wil->status)) { 507 wil_err(wil, "status_resetting, cancel connect event, CID %d\n", 508 evt->cid); 509 mutex_unlock(&wil->mutex); 510 /* no need for cleanup, wil_reset will do that */ 511 return; 512 } 513 514 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 515 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 516 if (!test_bit(wil_status_fwconnecting, wil->status)) { 517 wil_err(wil, "Not in connecting state\n"); 518 mutex_unlock(&wil->mutex); 519 return; 520 } 521 del_timer_sync(&wil->connect_timer); 522 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 523 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 524 if (wil->sta[evt->cid].status != wil_sta_unused) { 525 wil_err(wil, "%s: AP: Invalid status %d for CID %d\n", 526 __func__, wil->sta[evt->cid].status, evt->cid); 527 mutex_unlock(&wil->mutex); 528 return; 529 } 530 } 531 532 /* FIXME FW can transmit only ucast frames to peer */ 533 /* FIXME real ring_id instead of hard coded 0 */ 534 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 535 wil->sta[evt->cid].status = wil_sta_conn_pending; 536 537 rc = wil_tx_init(wil, evt->cid); 538 if (rc) { 539 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n", 540 __func__, evt->cid, rc); 541 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr, 542 WLAN_REASON_UNSPECIFIED, false); 543 } else { 544 wil_info(wil, "%s: successful connection to CID %d\n", 545 __func__, evt->cid); 546 } 547 548 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 549 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 550 if (rc) { 551 netif_tx_stop_all_queues(ndev); 552 netif_carrier_off(ndev); 553 wil_err(wil, 554 "%s: cfg80211_connect_result with failure\n", 555 __func__); 556 cfg80211_connect_result(ndev, evt->bssid, NULL, 0, 557 NULL, 0, 558 WLAN_STATUS_UNSPECIFIED_FAILURE, 559 GFP_KERNEL); 560 goto out; 561 } else { 562 cfg80211_connect_result(ndev, evt->bssid, 563 assoc_req_ie, assoc_req_ielen, 564 assoc_resp_ie, assoc_resp_ielen, 565 WLAN_STATUS_SUCCESS, 566 GFP_KERNEL); 567 } 568 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 569 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 570 if (rc) 571 goto out; 572 573 memset(&sinfo, 0, sizeof(sinfo)); 574 575 sinfo.generation = wil->sinfo_gen++; 576 577 if (assoc_req_ie) { 578 sinfo.assoc_req_ies = assoc_req_ie; 579 sinfo.assoc_req_ies_len = assoc_req_ielen; 580 } 581 582 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 583 } else { 584 wil_err(wil, "%s: unhandled iftype %d for CID %d\n", 585 __func__, wdev->iftype, evt->cid); 586 goto out; 587 } 588 589 wil->sta[evt->cid].status = wil_sta_connected; 590 set_bit(wil_status_fwconnected, wil->status); 591 netif_tx_wake_all_queues(ndev); 592 593 out: 594 if (rc) 595 wil->sta[evt->cid].status = wil_sta_unused; 596 clear_bit(wil_status_fwconnecting, wil->status); 597 mutex_unlock(&wil->mutex); 598 } 599 600 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 601 void *d, int len) 602 { 603 struct wmi_disconnect_event *evt = d; 604 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 605 606 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 607 evt->bssid, reason_code, evt->disconnect_reason); 608 609 wil->sinfo_gen++; 610 611 mutex_lock(&wil->mutex); 612 wil6210_disconnect(wil, evt->bssid, reason_code, true); 613 mutex_unlock(&wil->mutex); 614 } 615 616 /* 617 * Firmware reports EAPOL frame using WME event. 618 * Reconstruct Ethernet frame and deliver it via normal Rx 619 */ 620 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 621 void *d, int len) 622 { 623 struct net_device *ndev = wil_to_ndev(wil); 624 struct wmi_eapol_rx_event *evt = d; 625 u16 eapol_len = le16_to_cpu(evt->eapol_len); 626 int sz = eapol_len + ETH_HLEN; 627 struct sk_buff *skb; 628 struct ethhdr *eth; 629 int cid; 630 struct wil_net_stats *stats = NULL; 631 632 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 633 evt->src_mac); 634 635 cid = wil_find_cid(wil, evt->src_mac); 636 if (cid >= 0) 637 stats = &wil->sta[cid].stats; 638 639 if (eapol_len > 196) { /* TODO: revisit size limit */ 640 wil_err(wil, "EAPOL too large\n"); 641 return; 642 } 643 644 skb = alloc_skb(sz, GFP_KERNEL); 645 if (!skb) { 646 wil_err(wil, "Failed to allocate skb\n"); 647 return; 648 } 649 650 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 651 ether_addr_copy(eth->h_dest, ndev->dev_addr); 652 ether_addr_copy(eth->h_source, evt->src_mac); 653 eth->h_proto = cpu_to_be16(ETH_P_PAE); 654 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 655 skb->protocol = eth_type_trans(skb, ndev); 656 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 657 ndev->stats.rx_packets++; 658 ndev->stats.rx_bytes += sz; 659 if (stats) { 660 stats->rx_packets++; 661 stats->rx_bytes += sz; 662 } 663 } else { 664 ndev->stats.rx_dropped++; 665 if (stats) 666 stats->rx_dropped++; 667 } 668 } 669 670 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 671 { 672 struct wmi_vring_en_event *evt = d; 673 u8 vri = evt->vring_index; 674 675 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 676 677 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 678 wil_err(wil, "Enable for invalid vring %d\n", vri); 679 return; 680 } 681 wil->vring_tx_data[vri].dot1x_open = true; 682 if (vri == wil->bcast_vring) /* no BA for bcast */ 683 return; 684 if (agg_wsize >= 0) 685 wil_addba_tx_request(wil, vri, agg_wsize); 686 } 687 688 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 689 int len) 690 { 691 struct wmi_ba_status_event *evt = d; 692 struct vring_tx_data *txdata; 693 694 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 695 evt->ringid, 696 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 697 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 698 evt->amsdu ? "+" : "-"); 699 700 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 701 wil_err(wil, "invalid ring id %d\n", evt->ringid); 702 return; 703 } 704 705 if (evt->status != WMI_BA_AGREED) { 706 evt->ba_timeout = 0; 707 evt->agg_wsize = 0; 708 evt->amsdu = 0; 709 } 710 711 txdata = &wil->vring_tx_data[evt->ringid]; 712 713 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 714 txdata->agg_wsize = evt->agg_wsize; 715 txdata->agg_amsdu = evt->amsdu; 716 txdata->addba_in_progress = false; 717 } 718 719 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 720 int len) 721 { 722 struct wmi_rcp_addba_req_event *evt = d; 723 724 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 725 evt->ba_param_set, evt->ba_timeout, 726 evt->ba_seq_ctrl); 727 } 728 729 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 730 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 731 { 732 struct wmi_delba_event *evt = d; 733 u8 cid, tid; 734 u16 reason = __le16_to_cpu(evt->reason); 735 struct wil_sta_info *sta; 736 struct wil_tid_ampdu_rx *r; 737 738 might_sleep(); 739 parse_cidxtid(evt->cidxtid, &cid, &tid); 740 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 741 cid, tid, 742 evt->from_initiator ? "originator" : "recipient", 743 reason); 744 if (!evt->from_initiator) { 745 int i; 746 /* find Tx vring it belongs to */ 747 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 748 if ((wil->vring2cid_tid[i][0] == cid) && 749 (wil->vring2cid_tid[i][1] == tid)) { 750 struct vring_tx_data *txdata = 751 &wil->vring_tx_data[i]; 752 753 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 754 txdata->agg_timeout = 0; 755 txdata->agg_wsize = 0; 756 txdata->addba_in_progress = false; 757 758 break; /* max. 1 matching ring */ 759 } 760 } 761 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 762 wil_err(wil, "DELBA: unable to find Tx vring\n"); 763 return; 764 } 765 766 sta = &wil->sta[cid]; 767 768 spin_lock_bh(&sta->tid_rx_lock); 769 770 r = sta->tid_rx[tid]; 771 sta->tid_rx[tid] = NULL; 772 wil_tid_ampdu_rx_free(wil, r); 773 774 spin_unlock_bh(&sta->tid_rx_lock); 775 } 776 777 /** 778 * Some events are ignored for purpose; and need not be interpreted as 779 * "unhandled events" 780 */ 781 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 782 { 783 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 784 } 785 786 static const struct { 787 int eventid; 788 void (*handler)(struct wil6210_priv *wil, int eventid, 789 void *data, int data_len); 790 } wmi_evt_handlers[] = { 791 {WMI_READY_EVENTID, wmi_evt_ready}, 792 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 793 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 794 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 795 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 796 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 797 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 798 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 799 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 800 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 801 {WMI_DELBA_EVENTID, wmi_evt_delba}, 802 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 803 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 804 }; 805 806 /* 807 * Run in IRQ context 808 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 809 * that will be eventually handled by the @wmi_event_worker in the thread 810 * context of thread "wil6210_wmi" 811 */ 812 void wmi_recv_cmd(struct wil6210_priv *wil) 813 { 814 struct wil6210_mbox_ring_desc d_tail; 815 struct wil6210_mbox_hdr hdr; 816 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 817 struct pending_wmi_event *evt; 818 u8 *cmd; 819 void __iomem *src; 820 ulong flags; 821 unsigned n; 822 unsigned int num_immed_reply = 0; 823 824 if (!test_bit(wil_status_mbox_ready, wil->status)) { 825 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 826 return; 827 } 828 829 for (n = 0;; n++) { 830 u16 len; 831 bool q; 832 bool immed_reply = false; 833 834 r->head = wil_r(wil, RGF_MBOX + 835 offsetof(struct wil6210_mbox_ctl, rx.head)); 836 if (r->tail == r->head) 837 break; 838 839 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 840 r->head, r->tail); 841 /* read cmd descriptor from tail */ 842 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 843 sizeof(struct wil6210_mbox_ring_desc)); 844 if (d_tail.sync == 0) { 845 wil_err(wil, "Mbox evt not owned by FW?\n"); 846 break; 847 } 848 849 /* read cmd header from descriptor */ 850 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 851 wil_err(wil, "Mbox evt at 0x%08x?\n", 852 le32_to_cpu(d_tail.addr)); 853 break; 854 } 855 len = le16_to_cpu(hdr.len); 856 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 857 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 858 hdr.flags); 859 860 /* read cmd buffer from descriptor */ 861 src = wmi_buffer(wil, d_tail.addr) + 862 sizeof(struct wil6210_mbox_hdr); 863 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 864 event.wmi) + len, 4), 865 GFP_KERNEL); 866 if (!evt) 867 break; 868 869 evt->event.hdr = hdr; 870 cmd = (void *)&evt->event.wmi; 871 wil_memcpy_fromio_32(cmd, src, len); 872 /* mark entry as empty */ 873 wil_w(wil, r->tail + 874 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 875 /* indicate */ 876 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 877 (len >= sizeof(struct wmi_cmd_hdr))) { 878 struct wmi_cmd_hdr *wmi = &evt->event.wmi; 879 u16 id = le16_to_cpu(wmi->command_id); 880 u32 tstamp = le32_to_cpu(wmi->fw_timestamp); 881 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 882 if (wil->reply_id && wil->reply_id == id) { 883 if (wil->reply_buf) { 884 memcpy(wil->reply_buf, wmi, 885 min(len, wil->reply_size)); 886 immed_reply = true; 887 } 888 } 889 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 890 891 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 892 id, wmi->mid, tstamp); 893 trace_wil6210_wmi_event(wmi, &wmi[1], 894 len - sizeof(*wmi)); 895 } 896 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 897 &evt->event.hdr, sizeof(hdr) + len, true); 898 899 /* advance tail */ 900 r->tail = r->base + ((r->tail - r->base + 901 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 902 wil_w(wil, RGF_MBOX + 903 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 904 905 if (immed_reply) { 906 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 907 __func__, wil->reply_id); 908 kfree(evt); 909 num_immed_reply++; 910 complete(&wil->wmi_call); 911 } else { 912 /* add to the pending list */ 913 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 914 list_add_tail(&evt->list, &wil->pending_wmi_ev); 915 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 916 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 917 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 918 } 919 } 920 /* normally, 1 event per IRQ should be processed */ 921 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__, 922 n - num_immed_reply, num_immed_reply); 923 } 924 925 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 926 u16 reply_id, void *reply, u8 reply_size, int to_msec) 927 { 928 int rc; 929 unsigned long remain; 930 931 mutex_lock(&wil->wmi_mutex); 932 933 spin_lock(&wil->wmi_ev_lock); 934 wil->reply_id = reply_id; 935 wil->reply_buf = reply; 936 wil->reply_size = reply_size; 937 spin_unlock(&wil->wmi_ev_lock); 938 939 rc = __wmi_send(wil, cmdid, buf, len); 940 if (rc) 941 goto out; 942 943 remain = wait_for_completion_timeout(&wil->wmi_call, 944 msecs_to_jiffies(to_msec)); 945 if (0 == remain) { 946 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 947 cmdid, reply_id, to_msec); 948 rc = -ETIME; 949 } else { 950 wil_dbg_wmi(wil, 951 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 952 cmdid, reply_id, 953 to_msec - jiffies_to_msecs(remain)); 954 } 955 956 out: 957 spin_lock(&wil->wmi_ev_lock); 958 wil->reply_id = 0; 959 wil->reply_buf = NULL; 960 wil->reply_size = 0; 961 spin_unlock(&wil->wmi_ev_lock); 962 963 mutex_unlock(&wil->wmi_mutex); 964 965 return rc; 966 } 967 968 int wmi_echo(struct wil6210_priv *wil) 969 { 970 struct wmi_echo_cmd cmd = { 971 .value = cpu_to_le32(0x12345678), 972 }; 973 974 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 975 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 976 } 977 978 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 979 { 980 struct wmi_set_mac_address_cmd cmd; 981 982 ether_addr_copy(cmd.mac, addr); 983 984 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 985 986 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 987 } 988 989 int wmi_led_cfg(struct wil6210_priv *wil, bool enable) 990 { 991 int rc = 0; 992 struct wmi_led_cfg_cmd cmd = { 993 .led_mode = enable, 994 .id = led_id, 995 .slow_blink_cfg.blink_on = 996 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms), 997 .slow_blink_cfg.blink_off = 998 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms), 999 .medium_blink_cfg.blink_on = 1000 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms), 1001 .medium_blink_cfg.blink_off = 1002 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms), 1003 .fast_blink_cfg.blink_on = 1004 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms), 1005 .fast_blink_cfg.blink_off = 1006 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms), 1007 .led_polarity = led_polarity, 1008 }; 1009 struct { 1010 struct wmi_cmd_hdr wmi; 1011 struct wmi_led_cfg_done_event evt; 1012 } __packed reply; 1013 1014 if (led_id == WIL_LED_INVALID_ID) 1015 goto out; 1016 1017 if (led_id > WIL_LED_MAX_ID) { 1018 wil_err(wil, "Invalid led id %d\n", led_id); 1019 rc = -EINVAL; 1020 goto out; 1021 } 1022 1023 wil_dbg_wmi(wil, 1024 "%s led %d\n", 1025 enable ? "enabling" : "disabling", led_id); 1026 1027 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd), 1028 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply), 1029 100); 1030 if (rc) 1031 goto out; 1032 1033 if (reply.evt.status) { 1034 wil_err(wil, "led %d cfg failed with status %d\n", 1035 led_id, le32_to_cpu(reply.evt.status)); 1036 rc = -EINVAL; 1037 } 1038 1039 out: 1040 return rc; 1041 } 1042 1043 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 1044 u8 chan, u8 hidden_ssid, u8 is_go) 1045 { 1046 int rc; 1047 1048 struct wmi_pcp_start_cmd cmd = { 1049 .bcon_interval = cpu_to_le16(bi), 1050 .network_type = wmi_nettype, 1051 .disable_sec_offload = 1, 1052 .channel = chan - 1, 1053 .pcp_max_assoc_sta = max_assoc_sta, 1054 .hidden_ssid = hidden_ssid, 1055 .is_go = is_go, 1056 }; 1057 struct { 1058 struct wmi_cmd_hdr wmi; 1059 struct wmi_pcp_started_event evt; 1060 } __packed reply; 1061 1062 if (!wil->privacy) 1063 cmd.disable_sec = 1; 1064 1065 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 1066 (cmd.pcp_max_assoc_sta <= 0)) { 1067 wil_info(wil, 1068 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 1069 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 1070 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 1071 } 1072 1073 /* 1074 * Processing time may be huge, in case of secure AP it takes about 1075 * 3500ms for FW to start AP 1076 */ 1077 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 1078 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 1079 if (rc) 1080 return rc; 1081 1082 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 1083 rc = -EINVAL; 1084 1085 if (wmi_nettype != WMI_NETTYPE_P2P) 1086 /* Don't fail due to error in the led configuration */ 1087 wmi_led_cfg(wil, true); 1088 1089 return rc; 1090 } 1091 1092 int wmi_pcp_stop(struct wil6210_priv *wil) 1093 { 1094 int rc; 1095 1096 rc = wmi_led_cfg(wil, false); 1097 if (rc) 1098 return rc; 1099 1100 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 1101 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 1102 } 1103 1104 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 1105 { 1106 struct wmi_set_ssid_cmd cmd = { 1107 .ssid_len = cpu_to_le32(ssid_len), 1108 }; 1109 1110 if (ssid_len > sizeof(cmd.ssid)) 1111 return -EINVAL; 1112 1113 memcpy(cmd.ssid, ssid, ssid_len); 1114 1115 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 1116 } 1117 1118 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 1119 { 1120 int rc; 1121 struct { 1122 struct wmi_cmd_hdr wmi; 1123 struct wmi_set_ssid_cmd cmd; 1124 } __packed reply; 1125 int len; /* reply.cmd.ssid_len in CPU order */ 1126 1127 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 1128 &reply, sizeof(reply), 20); 1129 if (rc) 1130 return rc; 1131 1132 len = le32_to_cpu(reply.cmd.ssid_len); 1133 if (len > sizeof(reply.cmd.ssid)) 1134 return -EINVAL; 1135 1136 *ssid_len = len; 1137 memcpy(ssid, reply.cmd.ssid, len); 1138 1139 return 0; 1140 } 1141 1142 int wmi_set_channel(struct wil6210_priv *wil, int channel) 1143 { 1144 struct wmi_set_pcp_channel_cmd cmd = { 1145 .channel = channel - 1, 1146 }; 1147 1148 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 1149 } 1150 1151 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 1152 { 1153 int rc; 1154 struct { 1155 struct wmi_cmd_hdr wmi; 1156 struct wmi_set_pcp_channel_cmd cmd; 1157 } __packed reply; 1158 1159 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 1160 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 1161 if (rc) 1162 return rc; 1163 1164 if (reply.cmd.channel > 3) 1165 return -EINVAL; 1166 1167 *channel = reply.cmd.channel + 1; 1168 1169 return 0; 1170 } 1171 1172 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi) 1173 { 1174 int rc; 1175 struct wmi_p2p_cfg_cmd cmd = { 1176 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER, 1177 .bcon_interval = cpu_to_le16(bi), 1178 .channel = channel - 1, 1179 }; 1180 struct { 1181 struct wmi_cmd_hdr wmi; 1182 struct wmi_p2p_cfg_done_event evt; 1183 } __packed reply; 1184 1185 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n"); 1186 1187 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd), 1188 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300); 1189 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1190 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status); 1191 rc = -EINVAL; 1192 } 1193 1194 return rc; 1195 } 1196 1197 int wmi_start_listen(struct wil6210_priv *wil) 1198 { 1199 int rc; 1200 struct { 1201 struct wmi_cmd_hdr wmi; 1202 struct wmi_listen_started_event evt; 1203 } __packed reply; 1204 1205 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n"); 1206 1207 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1208 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300); 1209 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1210 wil_err(wil, "device failed to start listen. status %d\n", 1211 reply.evt.status); 1212 rc = -EINVAL; 1213 } 1214 1215 return rc; 1216 } 1217 1218 int wmi_start_search(struct wil6210_priv *wil) 1219 { 1220 int rc; 1221 struct { 1222 struct wmi_cmd_hdr wmi; 1223 struct wmi_search_started_event evt; 1224 } __packed reply; 1225 1226 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n"); 1227 1228 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0, 1229 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300); 1230 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1231 wil_err(wil, "device failed to start search. status %d\n", 1232 reply.evt.status); 1233 rc = -EINVAL; 1234 } 1235 1236 return rc; 1237 } 1238 1239 int wmi_stop_discovery(struct wil6210_priv *wil) 1240 { 1241 int rc; 1242 1243 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n"); 1244 1245 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1246 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100); 1247 1248 if (rc) 1249 wil_err(wil, "Failed to stop discovery\n"); 1250 1251 return rc; 1252 } 1253 1254 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 1255 const void *mac_addr, int key_usage) 1256 { 1257 struct wmi_delete_cipher_key_cmd cmd = { 1258 .key_index = key_index, 1259 }; 1260 1261 if (mac_addr) 1262 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1263 1264 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1265 } 1266 1267 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1268 const void *mac_addr, int key_len, const void *key, 1269 int key_usage) 1270 { 1271 struct wmi_add_cipher_key_cmd cmd = { 1272 .key_index = key_index, 1273 .key_usage = key_usage, 1274 .key_len = key_len, 1275 }; 1276 1277 if (!key || (key_len > sizeof(cmd.key))) 1278 return -EINVAL; 1279 1280 memcpy(cmd.key, key, key_len); 1281 if (mac_addr) 1282 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1283 1284 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1285 } 1286 1287 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1288 { 1289 static const char *const names[] = { 1290 [WMI_FRAME_BEACON] = "BEACON", 1291 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1292 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1293 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1294 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1295 }; 1296 int rc; 1297 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1298 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1299 1300 if (!cmd) { 1301 rc = -ENOMEM; 1302 goto out; 1303 } 1304 if (!ie) 1305 ie_len = 0; 1306 1307 cmd->mgmt_frm_type = type; 1308 /* BUG: FW API define ieLen as u8. Will fix FW */ 1309 cmd->ie_len = cpu_to_le16(ie_len); 1310 memcpy(cmd->ie_info, ie, ie_len); 1311 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1312 kfree(cmd); 1313 out: 1314 if (rc) { 1315 const char *name = type < ARRAY_SIZE(names) ? 1316 names[type] : "??"; 1317 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1318 } 1319 1320 return rc; 1321 } 1322 1323 /** 1324 * wmi_rxon - turn radio on/off 1325 * @on: turn on if true, off otherwise 1326 * 1327 * Only switch radio. Channel should be set separately. 1328 * No timeout for rxon - radio turned on forever unless some other call 1329 * turns it off 1330 */ 1331 int wmi_rxon(struct wil6210_priv *wil, bool on) 1332 { 1333 int rc; 1334 struct { 1335 struct wmi_cmd_hdr wmi; 1336 struct wmi_listen_started_event evt; 1337 } __packed reply; 1338 1339 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1340 1341 if (on) { 1342 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1343 WMI_LISTEN_STARTED_EVENTID, 1344 &reply, sizeof(reply), 100); 1345 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1346 rc = -EINVAL; 1347 } else { 1348 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1349 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1350 } 1351 1352 return rc; 1353 } 1354 1355 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1356 { 1357 struct wireless_dev *wdev = wil->wdev; 1358 struct net_device *ndev = wil_to_ndev(wil); 1359 struct wmi_cfg_rx_chain_cmd cmd = { 1360 .action = WMI_RX_CHAIN_ADD, 1361 .rx_sw_ring = { 1362 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1363 .ring_mem_base = cpu_to_le64(vring->pa), 1364 .ring_size = cpu_to_le16(vring->size), 1365 }, 1366 .mid = 0, /* TODO - what is it? */ 1367 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1368 .reorder_type = WMI_RX_SW_REORDER, 1369 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1370 }; 1371 struct { 1372 struct wmi_cmd_hdr wmi; 1373 struct wmi_cfg_rx_chain_done_event evt; 1374 } __packed evt; 1375 int rc; 1376 1377 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1378 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1379 1380 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1381 if (ch) 1382 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1383 cmd.sniffer_cfg.phy_info_mode = 1384 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1385 cmd.sniffer_cfg.phy_support = 1386 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1387 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1388 } else { 1389 /* Initialize offload (in non-sniffer mode). 1390 * Linux IP stack always calculates IP checksum 1391 * HW always calculate TCP/UDP checksum 1392 */ 1393 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1394 } 1395 1396 if (rx_align_2) 1397 cmd.l2_802_3_offload_ctrl |= 1398 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1399 1400 /* typical time for secure PCP is 840ms */ 1401 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1402 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1403 if (rc) 1404 return rc; 1405 1406 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1407 1408 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1409 le32_to_cpu(evt.evt.status), vring->hwtail); 1410 1411 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1412 rc = -EINVAL; 1413 1414 return rc; 1415 } 1416 1417 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1418 { 1419 int rc; 1420 struct wmi_temp_sense_cmd cmd = { 1421 .measure_baseband_en = cpu_to_le32(!!t_bb), 1422 .measure_rf_en = cpu_to_le32(!!t_rf), 1423 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1424 }; 1425 struct { 1426 struct wmi_cmd_hdr wmi; 1427 struct wmi_temp_sense_done_event evt; 1428 } __packed reply; 1429 1430 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1431 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1432 if (rc) 1433 return rc; 1434 1435 if (t_bb) 1436 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1437 if (t_rf) 1438 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1439 1440 return 0; 1441 } 1442 1443 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason, 1444 bool full_disconnect) 1445 { 1446 int rc; 1447 u16 reason_code; 1448 struct wmi_disconnect_sta_cmd cmd = { 1449 .disconnect_reason = cpu_to_le16(reason), 1450 }; 1451 struct { 1452 struct wmi_cmd_hdr wmi; 1453 struct wmi_disconnect_event evt; 1454 } __packed reply; 1455 1456 ether_addr_copy(cmd.dst_mac, mac); 1457 1458 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1459 1460 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), 1461 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); 1462 /* failure to disconnect in reasonable time treated as FW error */ 1463 if (rc) { 1464 wil_fw_error_recovery(wil); 1465 return rc; 1466 } 1467 1468 if (full_disconnect) { 1469 /* call event handler manually after processing wmi_call, 1470 * to avoid deadlock - disconnect event handler acquires 1471 * wil->mutex while it is already held here 1472 */ 1473 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1474 1475 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1476 reply.evt.bssid, reason_code, 1477 reply.evt.disconnect_reason); 1478 1479 wil->sinfo_gen++; 1480 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1481 } 1482 return 0; 1483 } 1484 1485 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1486 { 1487 struct wmi_vring_ba_en_cmd cmd = { 1488 .ringid = ringid, 1489 .agg_max_wsize = size, 1490 .ba_timeout = cpu_to_le16(timeout), 1491 .amsdu = 0, 1492 }; 1493 1494 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1495 ringid, size, timeout); 1496 1497 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1498 } 1499 1500 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1501 { 1502 struct wmi_vring_ba_dis_cmd cmd = { 1503 .ringid = ringid, 1504 .reason = cpu_to_le16(reason), 1505 }; 1506 1507 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1508 ringid, reason); 1509 1510 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1511 } 1512 1513 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1514 { 1515 struct wmi_rcp_delba_cmd cmd = { 1516 .cidxtid = cidxtid, 1517 .reason = cpu_to_le16(reason), 1518 }; 1519 1520 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1521 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1522 1523 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1524 } 1525 1526 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1527 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1528 { 1529 int rc; 1530 struct wmi_rcp_addba_resp_cmd cmd = { 1531 .cidxtid = mk_cidxtid(cid, tid), 1532 .dialog_token = token, 1533 .status_code = cpu_to_le16(status), 1534 /* bit 0: A-MSDU supported 1535 * bit 1: policy (should be 0 for us) 1536 * bits 2..5: TID 1537 * bits 6..15: buffer size 1538 */ 1539 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1540 (agg_wsize << 6)), 1541 .ba_timeout = cpu_to_le16(timeout), 1542 }; 1543 struct { 1544 struct wmi_cmd_hdr wmi; 1545 struct wmi_rcp_addba_resp_sent_event evt; 1546 } __packed reply; 1547 1548 wil_dbg_wmi(wil, 1549 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1550 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1551 1552 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1553 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1554 100); 1555 if (rc) 1556 return rc; 1557 1558 if (reply.evt.status) { 1559 wil_err(wil, "ADDBA response failed with status %d\n", 1560 le16_to_cpu(reply.evt.status)); 1561 rc = -EINVAL; 1562 } 1563 1564 return rc; 1565 } 1566 1567 void wmi_event_flush(struct wil6210_priv *wil) 1568 { 1569 struct pending_wmi_event *evt, *t; 1570 1571 wil_dbg_wmi(wil, "%s()\n", __func__); 1572 1573 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1574 list_del(&evt->list); 1575 kfree(evt); 1576 } 1577 } 1578 1579 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1580 void *d, int len) 1581 { 1582 uint i; 1583 1584 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1585 if (wmi_evt_handlers[i].eventid == id) { 1586 wmi_evt_handlers[i].handler(wil, id, d, len); 1587 return true; 1588 } 1589 } 1590 1591 return false; 1592 } 1593 1594 static void wmi_event_handle(struct wil6210_priv *wil, 1595 struct wil6210_mbox_hdr *hdr) 1596 { 1597 u16 len = le16_to_cpu(hdr->len); 1598 1599 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1600 (len >= sizeof(struct wmi_cmd_hdr))) { 1601 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]); 1602 void *evt_data = (void *)(&wmi[1]); 1603 u16 id = le16_to_cpu(wmi->command_id); 1604 1605 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1606 id, wil->reply_id); 1607 /* check if someone waits for this event */ 1608 if (wil->reply_id && wil->reply_id == id) { 1609 WARN_ON(wil->reply_buf); 1610 wmi_evt_call_handler(wil, id, evt_data, 1611 len - sizeof(*wmi)); 1612 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 1613 __func__, id); 1614 complete(&wil->wmi_call); 1615 return; 1616 } 1617 /* unsolicited event */ 1618 /* search for handler */ 1619 if (!wmi_evt_call_handler(wil, id, evt_data, 1620 len - sizeof(*wmi))) { 1621 wil_info(wil, "Unhandled event 0x%04x\n", id); 1622 } 1623 } else { 1624 wil_err(wil, "Unknown event type\n"); 1625 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1626 hdr, sizeof(*hdr) + len, true); 1627 } 1628 } 1629 1630 /* 1631 * Retrieve next WMI event from the pending list 1632 */ 1633 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1634 { 1635 ulong flags; 1636 struct list_head *ret = NULL; 1637 1638 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1639 1640 if (!list_empty(&wil->pending_wmi_ev)) { 1641 ret = wil->pending_wmi_ev.next; 1642 list_del(ret); 1643 } 1644 1645 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1646 1647 return ret; 1648 } 1649 1650 /* 1651 * Handler for the WMI events 1652 */ 1653 void wmi_event_worker(struct work_struct *work) 1654 { 1655 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1656 wmi_event_worker); 1657 struct pending_wmi_event *evt; 1658 struct list_head *lh; 1659 1660 wil_dbg_wmi(wil, "Start %s\n", __func__); 1661 while ((lh = next_wmi_ev(wil)) != NULL) { 1662 evt = list_entry(lh, struct pending_wmi_event, list); 1663 wmi_event_handle(wil, &evt->event.hdr); 1664 kfree(evt); 1665 } 1666 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1667 } 1668