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 bool aborted = (data->status != WMI_SCAN_SUCCESS); 430 431 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 432 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 433 wil->scan_request, aborted); 434 435 del_timer_sync(&wil->scan_timer); 436 mutex_lock(&wil->p2p_wdev_mutex); 437 cfg80211_scan_done(wil->scan_request, aborted); 438 wil->radio_wdev = wil->wdev; 439 mutex_unlock(&wil->p2p_wdev_mutex); 440 wil->scan_request = NULL; 441 } else { 442 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 443 } 444 } 445 446 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 447 { 448 struct net_device *ndev = wil_to_ndev(wil); 449 struct wireless_dev *wdev = wil->wdev; 450 struct wmi_connect_event *evt = d; 451 int ch; /* channel number */ 452 struct station_info sinfo; 453 u8 *assoc_req_ie, *assoc_resp_ie; 454 size_t assoc_req_ielen, assoc_resp_ielen; 455 /* capinfo(u16) + listen_interval(u16) + IEs */ 456 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 457 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 458 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 459 int rc; 460 461 if (len < sizeof(*evt)) { 462 wil_err(wil, "Connect event too short : %d bytes\n", len); 463 return; 464 } 465 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 466 evt->assoc_resp_len) { 467 wil_err(wil, 468 "Connect event corrupted : %d != %d + %d + %d + %d\n", 469 len, (int)sizeof(*evt), evt->beacon_ie_len, 470 evt->assoc_req_len, evt->assoc_resp_len); 471 return; 472 } 473 if (evt->cid >= WIL6210_MAX_CID) { 474 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 475 return; 476 } 477 478 ch = evt->channel + 1; 479 wil_info(wil, "Connect %pM channel [%d] cid %d\n", 480 evt->bssid, ch, evt->cid); 481 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 482 evt->assoc_info, len - sizeof(*evt), true); 483 484 /* figure out IE's */ 485 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 486 assoc_req_ie_offset]; 487 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 488 if (evt->assoc_req_len <= assoc_req_ie_offset) { 489 assoc_req_ie = NULL; 490 assoc_req_ielen = 0; 491 } 492 493 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 494 evt->assoc_req_len + 495 assoc_resp_ie_offset]; 496 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 497 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 498 assoc_resp_ie = NULL; 499 assoc_resp_ielen = 0; 500 } 501 502 mutex_lock(&wil->mutex); 503 if (test_bit(wil_status_resetting, wil->status) || 504 !test_bit(wil_status_fwready, wil->status)) { 505 wil_err(wil, "status_resetting, cancel connect event, CID %d\n", 506 evt->cid); 507 mutex_unlock(&wil->mutex); 508 /* no need for cleanup, wil_reset will do that */ 509 return; 510 } 511 512 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 513 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 514 if (!test_bit(wil_status_fwconnecting, wil->status)) { 515 wil_err(wil, "Not in connecting state\n"); 516 mutex_unlock(&wil->mutex); 517 return; 518 } 519 del_timer_sync(&wil->connect_timer); 520 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 521 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 522 if (wil->sta[evt->cid].status != wil_sta_unused) { 523 wil_err(wil, "%s: AP: Invalid status %d for CID %d\n", 524 __func__, wil->sta[evt->cid].status, evt->cid); 525 mutex_unlock(&wil->mutex); 526 return; 527 } 528 } 529 530 /* FIXME FW can transmit only ucast frames to peer */ 531 /* FIXME real ring_id instead of hard coded 0 */ 532 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 533 wil->sta[evt->cid].status = wil_sta_conn_pending; 534 535 rc = wil_tx_init(wil, evt->cid); 536 if (rc) { 537 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n", 538 __func__, evt->cid, rc); 539 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr, 540 WLAN_REASON_UNSPECIFIED, false); 541 } else { 542 wil_info(wil, "%s: successful connection to CID %d\n", 543 __func__, evt->cid); 544 } 545 546 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 547 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 548 if (rc) { 549 netif_tx_stop_all_queues(ndev); 550 netif_carrier_off(ndev); 551 wil_err(wil, 552 "%s: cfg80211_connect_result with failure\n", 553 __func__); 554 cfg80211_connect_result(ndev, evt->bssid, NULL, 0, 555 NULL, 0, 556 WLAN_STATUS_UNSPECIFIED_FAILURE, 557 GFP_KERNEL); 558 goto out; 559 } else { 560 cfg80211_connect_result(ndev, evt->bssid, 561 assoc_req_ie, assoc_req_ielen, 562 assoc_resp_ie, assoc_resp_ielen, 563 WLAN_STATUS_SUCCESS, 564 GFP_KERNEL); 565 } 566 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 567 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 568 if (rc) 569 goto out; 570 571 memset(&sinfo, 0, sizeof(sinfo)); 572 573 sinfo.generation = wil->sinfo_gen++; 574 575 if (assoc_req_ie) { 576 sinfo.assoc_req_ies = assoc_req_ie; 577 sinfo.assoc_req_ies_len = assoc_req_ielen; 578 } 579 580 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 581 } else { 582 wil_err(wil, "%s: unhandled iftype %d for CID %d\n", 583 __func__, wdev->iftype, evt->cid); 584 goto out; 585 } 586 587 wil->sta[evt->cid].status = wil_sta_connected; 588 set_bit(wil_status_fwconnected, wil->status); 589 netif_tx_wake_all_queues(ndev); 590 591 out: 592 if (rc) 593 wil->sta[evt->cid].status = wil_sta_unused; 594 clear_bit(wil_status_fwconnecting, wil->status); 595 mutex_unlock(&wil->mutex); 596 } 597 598 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 599 void *d, int len) 600 { 601 struct wmi_disconnect_event *evt = d; 602 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 603 604 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 605 evt->bssid, reason_code, evt->disconnect_reason); 606 607 wil->sinfo_gen++; 608 609 mutex_lock(&wil->mutex); 610 wil6210_disconnect(wil, evt->bssid, reason_code, true); 611 mutex_unlock(&wil->mutex); 612 } 613 614 /* 615 * Firmware reports EAPOL frame using WME event. 616 * Reconstruct Ethernet frame and deliver it via normal Rx 617 */ 618 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 619 void *d, int len) 620 { 621 struct net_device *ndev = wil_to_ndev(wil); 622 struct wmi_eapol_rx_event *evt = d; 623 u16 eapol_len = le16_to_cpu(evt->eapol_len); 624 int sz = eapol_len + ETH_HLEN; 625 struct sk_buff *skb; 626 struct ethhdr *eth; 627 int cid; 628 struct wil_net_stats *stats = NULL; 629 630 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 631 evt->src_mac); 632 633 cid = wil_find_cid(wil, evt->src_mac); 634 if (cid >= 0) 635 stats = &wil->sta[cid].stats; 636 637 if (eapol_len > 196) { /* TODO: revisit size limit */ 638 wil_err(wil, "EAPOL too large\n"); 639 return; 640 } 641 642 skb = alloc_skb(sz, GFP_KERNEL); 643 if (!skb) { 644 wil_err(wil, "Failed to allocate skb\n"); 645 return; 646 } 647 648 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 649 ether_addr_copy(eth->h_dest, ndev->dev_addr); 650 ether_addr_copy(eth->h_source, evt->src_mac); 651 eth->h_proto = cpu_to_be16(ETH_P_PAE); 652 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 653 skb->protocol = eth_type_trans(skb, ndev); 654 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 655 ndev->stats.rx_packets++; 656 ndev->stats.rx_bytes += sz; 657 if (stats) { 658 stats->rx_packets++; 659 stats->rx_bytes += sz; 660 } 661 } else { 662 ndev->stats.rx_dropped++; 663 if (stats) 664 stats->rx_dropped++; 665 } 666 } 667 668 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 669 { 670 struct wmi_vring_en_event *evt = d; 671 u8 vri = evt->vring_index; 672 673 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 674 675 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 676 wil_err(wil, "Enable for invalid vring %d\n", vri); 677 return; 678 } 679 wil->vring_tx_data[vri].dot1x_open = true; 680 if (vri == wil->bcast_vring) /* no BA for bcast */ 681 return; 682 if (agg_wsize >= 0) 683 wil_addba_tx_request(wil, vri, agg_wsize); 684 } 685 686 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 687 int len) 688 { 689 struct wmi_ba_status_event *evt = d; 690 struct vring_tx_data *txdata; 691 692 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 693 evt->ringid, 694 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 695 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 696 evt->amsdu ? "+" : "-"); 697 698 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 699 wil_err(wil, "invalid ring id %d\n", evt->ringid); 700 return; 701 } 702 703 if (evt->status != WMI_BA_AGREED) { 704 evt->ba_timeout = 0; 705 evt->agg_wsize = 0; 706 evt->amsdu = 0; 707 } 708 709 txdata = &wil->vring_tx_data[evt->ringid]; 710 711 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 712 txdata->agg_wsize = evt->agg_wsize; 713 txdata->agg_amsdu = evt->amsdu; 714 txdata->addba_in_progress = false; 715 } 716 717 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 718 int len) 719 { 720 struct wmi_rcp_addba_req_event *evt = d; 721 722 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 723 evt->ba_param_set, evt->ba_timeout, 724 evt->ba_seq_ctrl); 725 } 726 727 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 728 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 729 { 730 struct wmi_delba_event *evt = d; 731 u8 cid, tid; 732 u16 reason = __le16_to_cpu(evt->reason); 733 struct wil_sta_info *sta; 734 struct wil_tid_ampdu_rx *r; 735 736 might_sleep(); 737 parse_cidxtid(evt->cidxtid, &cid, &tid); 738 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 739 cid, tid, 740 evt->from_initiator ? "originator" : "recipient", 741 reason); 742 if (!evt->from_initiator) { 743 int i; 744 /* find Tx vring it belongs to */ 745 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 746 if ((wil->vring2cid_tid[i][0] == cid) && 747 (wil->vring2cid_tid[i][1] == tid)) { 748 struct vring_tx_data *txdata = 749 &wil->vring_tx_data[i]; 750 751 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 752 txdata->agg_timeout = 0; 753 txdata->agg_wsize = 0; 754 txdata->addba_in_progress = false; 755 756 break; /* max. 1 matching ring */ 757 } 758 } 759 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 760 wil_err(wil, "DELBA: unable to find Tx vring\n"); 761 return; 762 } 763 764 sta = &wil->sta[cid]; 765 766 spin_lock_bh(&sta->tid_rx_lock); 767 768 r = sta->tid_rx[tid]; 769 sta->tid_rx[tid] = NULL; 770 wil_tid_ampdu_rx_free(wil, r); 771 772 spin_unlock_bh(&sta->tid_rx_lock); 773 } 774 775 /** 776 * Some events are ignored for purpose; and need not be interpreted as 777 * "unhandled events" 778 */ 779 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 780 { 781 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 782 } 783 784 static const struct { 785 int eventid; 786 void (*handler)(struct wil6210_priv *wil, int eventid, 787 void *data, int data_len); 788 } wmi_evt_handlers[] = { 789 {WMI_READY_EVENTID, wmi_evt_ready}, 790 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 791 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 792 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 793 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 794 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 795 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 796 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 797 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 798 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 799 {WMI_DELBA_EVENTID, wmi_evt_delba}, 800 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 801 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 802 }; 803 804 /* 805 * Run in IRQ context 806 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 807 * that will be eventually handled by the @wmi_event_worker in the thread 808 * context of thread "wil6210_wmi" 809 */ 810 void wmi_recv_cmd(struct wil6210_priv *wil) 811 { 812 struct wil6210_mbox_ring_desc d_tail; 813 struct wil6210_mbox_hdr hdr; 814 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 815 struct pending_wmi_event *evt; 816 u8 *cmd; 817 void __iomem *src; 818 ulong flags; 819 unsigned n; 820 unsigned int num_immed_reply = 0; 821 822 if (!test_bit(wil_status_mbox_ready, wil->status)) { 823 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 824 return; 825 } 826 827 for (n = 0;; n++) { 828 u16 len; 829 bool q; 830 bool immed_reply = false; 831 832 r->head = wil_r(wil, RGF_MBOX + 833 offsetof(struct wil6210_mbox_ctl, rx.head)); 834 if (r->tail == r->head) 835 break; 836 837 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 838 r->head, r->tail); 839 /* read cmd descriptor from tail */ 840 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 841 sizeof(struct wil6210_mbox_ring_desc)); 842 if (d_tail.sync == 0) { 843 wil_err(wil, "Mbox evt not owned by FW?\n"); 844 break; 845 } 846 847 /* read cmd header from descriptor */ 848 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 849 wil_err(wil, "Mbox evt at 0x%08x?\n", 850 le32_to_cpu(d_tail.addr)); 851 break; 852 } 853 len = le16_to_cpu(hdr.len); 854 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 855 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 856 hdr.flags); 857 858 /* read cmd buffer from descriptor */ 859 src = wmi_buffer(wil, d_tail.addr) + 860 sizeof(struct wil6210_mbox_hdr); 861 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 862 event.wmi) + len, 4), 863 GFP_KERNEL); 864 if (!evt) 865 break; 866 867 evt->event.hdr = hdr; 868 cmd = (void *)&evt->event.wmi; 869 wil_memcpy_fromio_32(cmd, src, len); 870 /* mark entry as empty */ 871 wil_w(wil, r->tail + 872 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 873 /* indicate */ 874 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 875 (len >= sizeof(struct wmi_cmd_hdr))) { 876 struct wmi_cmd_hdr *wmi = &evt->event.wmi; 877 u16 id = le16_to_cpu(wmi->command_id); 878 u32 tstamp = le32_to_cpu(wmi->fw_timestamp); 879 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 880 if (wil->reply_id && wil->reply_id == id) { 881 if (wil->reply_buf) { 882 memcpy(wil->reply_buf, wmi, 883 min(len, wil->reply_size)); 884 immed_reply = true; 885 } 886 } 887 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 888 889 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 890 id, wmi->mid, tstamp); 891 trace_wil6210_wmi_event(wmi, &wmi[1], 892 len - sizeof(*wmi)); 893 } 894 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 895 &evt->event.hdr, sizeof(hdr) + len, true); 896 897 /* advance tail */ 898 r->tail = r->base + ((r->tail - r->base + 899 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 900 wil_w(wil, RGF_MBOX + 901 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 902 903 if (immed_reply) { 904 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 905 __func__, wil->reply_id); 906 kfree(evt); 907 num_immed_reply++; 908 complete(&wil->wmi_call); 909 } else { 910 /* add to the pending list */ 911 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 912 list_add_tail(&evt->list, &wil->pending_wmi_ev); 913 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 914 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 915 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 916 } 917 } 918 /* normally, 1 event per IRQ should be processed */ 919 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__, 920 n - num_immed_reply, num_immed_reply); 921 } 922 923 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 924 u16 reply_id, void *reply, u8 reply_size, int to_msec) 925 { 926 int rc; 927 unsigned long remain; 928 929 mutex_lock(&wil->wmi_mutex); 930 931 spin_lock(&wil->wmi_ev_lock); 932 wil->reply_id = reply_id; 933 wil->reply_buf = reply; 934 wil->reply_size = reply_size; 935 spin_unlock(&wil->wmi_ev_lock); 936 937 rc = __wmi_send(wil, cmdid, buf, len); 938 if (rc) 939 goto out; 940 941 remain = wait_for_completion_timeout(&wil->wmi_call, 942 msecs_to_jiffies(to_msec)); 943 if (0 == remain) { 944 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 945 cmdid, reply_id, to_msec); 946 rc = -ETIME; 947 } else { 948 wil_dbg_wmi(wil, 949 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 950 cmdid, reply_id, 951 to_msec - jiffies_to_msecs(remain)); 952 } 953 954 out: 955 spin_lock(&wil->wmi_ev_lock); 956 wil->reply_id = 0; 957 wil->reply_buf = NULL; 958 wil->reply_size = 0; 959 spin_unlock(&wil->wmi_ev_lock); 960 961 mutex_unlock(&wil->wmi_mutex); 962 963 return rc; 964 } 965 966 int wmi_echo(struct wil6210_priv *wil) 967 { 968 struct wmi_echo_cmd cmd = { 969 .value = cpu_to_le32(0x12345678), 970 }; 971 972 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 973 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 974 } 975 976 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 977 { 978 struct wmi_set_mac_address_cmd cmd; 979 980 ether_addr_copy(cmd.mac, addr); 981 982 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 983 984 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 985 } 986 987 int wmi_led_cfg(struct wil6210_priv *wil, bool enable) 988 { 989 int rc = 0; 990 struct wmi_led_cfg_cmd cmd = { 991 .led_mode = enable, 992 .id = led_id, 993 .slow_blink_cfg.blink_on = 994 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms), 995 .slow_blink_cfg.blink_off = 996 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms), 997 .medium_blink_cfg.blink_on = 998 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms), 999 .medium_blink_cfg.blink_off = 1000 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms), 1001 .fast_blink_cfg.blink_on = 1002 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms), 1003 .fast_blink_cfg.blink_off = 1004 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms), 1005 .led_polarity = led_polarity, 1006 }; 1007 struct { 1008 struct wmi_cmd_hdr wmi; 1009 struct wmi_led_cfg_done_event evt; 1010 } __packed reply; 1011 1012 if (led_id == WIL_LED_INVALID_ID) 1013 goto out; 1014 1015 if (led_id > WIL_LED_MAX_ID) { 1016 wil_err(wil, "Invalid led id %d\n", led_id); 1017 rc = -EINVAL; 1018 goto out; 1019 } 1020 1021 wil_dbg_wmi(wil, 1022 "%s led %d\n", 1023 enable ? "enabling" : "disabling", led_id); 1024 1025 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd), 1026 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply), 1027 100); 1028 if (rc) 1029 goto out; 1030 1031 if (reply.evt.status) { 1032 wil_err(wil, "led %d cfg failed with status %d\n", 1033 led_id, le32_to_cpu(reply.evt.status)); 1034 rc = -EINVAL; 1035 } 1036 1037 out: 1038 return rc; 1039 } 1040 1041 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 1042 u8 chan, u8 hidden_ssid, u8 is_go) 1043 { 1044 int rc; 1045 1046 struct wmi_pcp_start_cmd cmd = { 1047 .bcon_interval = cpu_to_le16(bi), 1048 .network_type = wmi_nettype, 1049 .disable_sec_offload = 1, 1050 .channel = chan - 1, 1051 .pcp_max_assoc_sta = max_assoc_sta, 1052 .hidden_ssid = hidden_ssid, 1053 .is_go = is_go, 1054 }; 1055 struct { 1056 struct wmi_cmd_hdr wmi; 1057 struct wmi_pcp_started_event evt; 1058 } __packed reply; 1059 1060 if (!wil->privacy) 1061 cmd.disable_sec = 1; 1062 1063 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 1064 (cmd.pcp_max_assoc_sta <= 0)) { 1065 wil_info(wil, 1066 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 1067 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 1068 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 1069 } 1070 1071 /* 1072 * Processing time may be huge, in case of secure AP it takes about 1073 * 3500ms for FW to start AP 1074 */ 1075 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 1076 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 1077 if (rc) 1078 return rc; 1079 1080 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 1081 rc = -EINVAL; 1082 1083 if (wmi_nettype != WMI_NETTYPE_P2P) 1084 /* Don't fail due to error in the led configuration */ 1085 wmi_led_cfg(wil, true); 1086 1087 return rc; 1088 } 1089 1090 int wmi_pcp_stop(struct wil6210_priv *wil) 1091 { 1092 int rc; 1093 1094 rc = wmi_led_cfg(wil, false); 1095 if (rc) 1096 return rc; 1097 1098 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 1099 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 1100 } 1101 1102 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 1103 { 1104 struct wmi_set_ssid_cmd cmd = { 1105 .ssid_len = cpu_to_le32(ssid_len), 1106 }; 1107 1108 if (ssid_len > sizeof(cmd.ssid)) 1109 return -EINVAL; 1110 1111 memcpy(cmd.ssid, ssid, ssid_len); 1112 1113 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 1114 } 1115 1116 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 1117 { 1118 int rc; 1119 struct { 1120 struct wmi_cmd_hdr wmi; 1121 struct wmi_set_ssid_cmd cmd; 1122 } __packed reply; 1123 int len; /* reply.cmd.ssid_len in CPU order */ 1124 1125 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 1126 &reply, sizeof(reply), 20); 1127 if (rc) 1128 return rc; 1129 1130 len = le32_to_cpu(reply.cmd.ssid_len); 1131 if (len > sizeof(reply.cmd.ssid)) 1132 return -EINVAL; 1133 1134 *ssid_len = len; 1135 memcpy(ssid, reply.cmd.ssid, len); 1136 1137 return 0; 1138 } 1139 1140 int wmi_set_channel(struct wil6210_priv *wil, int channel) 1141 { 1142 struct wmi_set_pcp_channel_cmd cmd = { 1143 .channel = channel - 1, 1144 }; 1145 1146 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 1147 } 1148 1149 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 1150 { 1151 int rc; 1152 struct { 1153 struct wmi_cmd_hdr wmi; 1154 struct wmi_set_pcp_channel_cmd cmd; 1155 } __packed reply; 1156 1157 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 1158 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 1159 if (rc) 1160 return rc; 1161 1162 if (reply.cmd.channel > 3) 1163 return -EINVAL; 1164 1165 *channel = reply.cmd.channel + 1; 1166 1167 return 0; 1168 } 1169 1170 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi) 1171 { 1172 int rc; 1173 struct wmi_p2p_cfg_cmd cmd = { 1174 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER, 1175 .bcon_interval = cpu_to_le16(bi), 1176 .channel = channel - 1, 1177 }; 1178 struct { 1179 struct wmi_cmd_hdr wmi; 1180 struct wmi_p2p_cfg_done_event evt; 1181 } __packed reply; 1182 1183 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n"); 1184 1185 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd), 1186 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300); 1187 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1188 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status); 1189 rc = -EINVAL; 1190 } 1191 1192 return rc; 1193 } 1194 1195 int wmi_start_listen(struct wil6210_priv *wil) 1196 { 1197 int rc; 1198 struct { 1199 struct wmi_cmd_hdr wmi; 1200 struct wmi_listen_started_event evt; 1201 } __packed reply; 1202 1203 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n"); 1204 1205 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1206 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300); 1207 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1208 wil_err(wil, "device failed to start listen. status %d\n", 1209 reply.evt.status); 1210 rc = -EINVAL; 1211 } 1212 1213 return rc; 1214 } 1215 1216 int wmi_start_search(struct wil6210_priv *wil) 1217 { 1218 int rc; 1219 struct { 1220 struct wmi_cmd_hdr wmi; 1221 struct wmi_search_started_event evt; 1222 } __packed reply; 1223 1224 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n"); 1225 1226 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0, 1227 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300); 1228 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) { 1229 wil_err(wil, "device failed to start search. status %d\n", 1230 reply.evt.status); 1231 rc = -EINVAL; 1232 } 1233 1234 return rc; 1235 } 1236 1237 int wmi_stop_discovery(struct wil6210_priv *wil) 1238 { 1239 int rc; 1240 1241 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n"); 1242 1243 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1244 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100); 1245 1246 if (rc) 1247 wil_err(wil, "Failed to stop discovery\n"); 1248 1249 return rc; 1250 } 1251 1252 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 1253 const void *mac_addr, int key_usage) 1254 { 1255 struct wmi_delete_cipher_key_cmd cmd = { 1256 .key_index = key_index, 1257 }; 1258 1259 if (mac_addr) 1260 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1261 1262 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1263 } 1264 1265 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1266 const void *mac_addr, int key_len, const void *key, 1267 int key_usage) 1268 { 1269 struct wmi_add_cipher_key_cmd cmd = { 1270 .key_index = key_index, 1271 .key_usage = key_usage, 1272 .key_len = key_len, 1273 }; 1274 1275 if (!key || (key_len > sizeof(cmd.key))) 1276 return -EINVAL; 1277 1278 memcpy(cmd.key, key, key_len); 1279 if (mac_addr) 1280 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1281 1282 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1283 } 1284 1285 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1286 { 1287 static const char *const names[] = { 1288 [WMI_FRAME_BEACON] = "BEACON", 1289 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1290 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1291 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1292 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1293 }; 1294 int rc; 1295 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1296 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1297 1298 if (!cmd) { 1299 rc = -ENOMEM; 1300 goto out; 1301 } 1302 if (!ie) 1303 ie_len = 0; 1304 1305 cmd->mgmt_frm_type = type; 1306 /* BUG: FW API define ieLen as u8. Will fix FW */ 1307 cmd->ie_len = cpu_to_le16(ie_len); 1308 memcpy(cmd->ie_info, ie, ie_len); 1309 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1310 kfree(cmd); 1311 out: 1312 if (rc) { 1313 const char *name = type < ARRAY_SIZE(names) ? 1314 names[type] : "??"; 1315 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1316 } 1317 1318 return rc; 1319 } 1320 1321 /** 1322 * wmi_rxon - turn radio on/off 1323 * @on: turn on if true, off otherwise 1324 * 1325 * Only switch radio. Channel should be set separately. 1326 * No timeout for rxon - radio turned on forever unless some other call 1327 * turns it off 1328 */ 1329 int wmi_rxon(struct wil6210_priv *wil, bool on) 1330 { 1331 int rc; 1332 struct { 1333 struct wmi_cmd_hdr wmi; 1334 struct wmi_listen_started_event evt; 1335 } __packed reply; 1336 1337 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1338 1339 if (on) { 1340 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1341 WMI_LISTEN_STARTED_EVENTID, 1342 &reply, sizeof(reply), 100); 1343 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1344 rc = -EINVAL; 1345 } else { 1346 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1347 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1348 } 1349 1350 return rc; 1351 } 1352 1353 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1354 { 1355 struct wireless_dev *wdev = wil->wdev; 1356 struct net_device *ndev = wil_to_ndev(wil); 1357 struct wmi_cfg_rx_chain_cmd cmd = { 1358 .action = WMI_RX_CHAIN_ADD, 1359 .rx_sw_ring = { 1360 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1361 .ring_mem_base = cpu_to_le64(vring->pa), 1362 .ring_size = cpu_to_le16(vring->size), 1363 }, 1364 .mid = 0, /* TODO - what is it? */ 1365 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1366 .reorder_type = WMI_RX_SW_REORDER, 1367 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1368 }; 1369 struct { 1370 struct wmi_cmd_hdr wmi; 1371 struct wmi_cfg_rx_chain_done_event evt; 1372 } __packed evt; 1373 int rc; 1374 1375 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1376 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1377 1378 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1379 if (ch) 1380 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1381 cmd.sniffer_cfg.phy_info_mode = 1382 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1383 cmd.sniffer_cfg.phy_support = 1384 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1385 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1386 } else { 1387 /* Initialize offload (in non-sniffer mode). 1388 * Linux IP stack always calculates IP checksum 1389 * HW always calculate TCP/UDP checksum 1390 */ 1391 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1392 } 1393 1394 if (rx_align_2) 1395 cmd.l2_802_3_offload_ctrl |= 1396 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1397 1398 /* typical time for secure PCP is 840ms */ 1399 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1400 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1401 if (rc) 1402 return rc; 1403 1404 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1405 1406 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1407 le32_to_cpu(evt.evt.status), vring->hwtail); 1408 1409 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1410 rc = -EINVAL; 1411 1412 return rc; 1413 } 1414 1415 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1416 { 1417 int rc; 1418 struct wmi_temp_sense_cmd cmd = { 1419 .measure_baseband_en = cpu_to_le32(!!t_bb), 1420 .measure_rf_en = cpu_to_le32(!!t_rf), 1421 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1422 }; 1423 struct { 1424 struct wmi_cmd_hdr wmi; 1425 struct wmi_temp_sense_done_event evt; 1426 } __packed reply; 1427 1428 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1429 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1430 if (rc) 1431 return rc; 1432 1433 if (t_bb) 1434 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1435 if (t_rf) 1436 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1437 1438 return 0; 1439 } 1440 1441 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason, 1442 bool full_disconnect) 1443 { 1444 int rc; 1445 u16 reason_code; 1446 struct wmi_disconnect_sta_cmd cmd = { 1447 .disconnect_reason = cpu_to_le16(reason), 1448 }; 1449 struct { 1450 struct wmi_cmd_hdr wmi; 1451 struct wmi_disconnect_event evt; 1452 } __packed reply; 1453 1454 ether_addr_copy(cmd.dst_mac, mac); 1455 1456 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1457 1458 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), 1459 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); 1460 /* failure to disconnect in reasonable time treated as FW error */ 1461 if (rc) { 1462 wil_fw_error_recovery(wil); 1463 return rc; 1464 } 1465 1466 if (full_disconnect) { 1467 /* call event handler manually after processing wmi_call, 1468 * to avoid deadlock - disconnect event handler acquires 1469 * wil->mutex while it is already held here 1470 */ 1471 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1472 1473 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1474 reply.evt.bssid, reason_code, 1475 reply.evt.disconnect_reason); 1476 1477 wil->sinfo_gen++; 1478 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1479 } 1480 return 0; 1481 } 1482 1483 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1484 { 1485 struct wmi_vring_ba_en_cmd cmd = { 1486 .ringid = ringid, 1487 .agg_max_wsize = size, 1488 .ba_timeout = cpu_to_le16(timeout), 1489 .amsdu = 0, 1490 }; 1491 1492 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1493 ringid, size, timeout); 1494 1495 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1496 } 1497 1498 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1499 { 1500 struct wmi_vring_ba_dis_cmd cmd = { 1501 .ringid = ringid, 1502 .reason = cpu_to_le16(reason), 1503 }; 1504 1505 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1506 ringid, reason); 1507 1508 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1509 } 1510 1511 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1512 { 1513 struct wmi_rcp_delba_cmd cmd = { 1514 .cidxtid = cidxtid, 1515 .reason = cpu_to_le16(reason), 1516 }; 1517 1518 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1519 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1520 1521 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1522 } 1523 1524 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1525 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1526 { 1527 int rc; 1528 struct wmi_rcp_addba_resp_cmd cmd = { 1529 .cidxtid = mk_cidxtid(cid, tid), 1530 .dialog_token = token, 1531 .status_code = cpu_to_le16(status), 1532 /* bit 0: A-MSDU supported 1533 * bit 1: policy (should be 0 for us) 1534 * bits 2..5: TID 1535 * bits 6..15: buffer size 1536 */ 1537 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1538 (agg_wsize << 6)), 1539 .ba_timeout = cpu_to_le16(timeout), 1540 }; 1541 struct { 1542 struct wmi_cmd_hdr wmi; 1543 struct wmi_rcp_addba_resp_sent_event evt; 1544 } __packed reply; 1545 1546 wil_dbg_wmi(wil, 1547 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1548 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1549 1550 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1551 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1552 100); 1553 if (rc) 1554 return rc; 1555 1556 if (reply.evt.status) { 1557 wil_err(wil, "ADDBA response failed with status %d\n", 1558 le16_to_cpu(reply.evt.status)); 1559 rc = -EINVAL; 1560 } 1561 1562 return rc; 1563 } 1564 1565 void wmi_event_flush(struct wil6210_priv *wil) 1566 { 1567 struct pending_wmi_event *evt, *t; 1568 1569 wil_dbg_wmi(wil, "%s()\n", __func__); 1570 1571 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1572 list_del(&evt->list); 1573 kfree(evt); 1574 } 1575 } 1576 1577 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1578 void *d, int len) 1579 { 1580 uint i; 1581 1582 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1583 if (wmi_evt_handlers[i].eventid == id) { 1584 wmi_evt_handlers[i].handler(wil, id, d, len); 1585 return true; 1586 } 1587 } 1588 1589 return false; 1590 } 1591 1592 static void wmi_event_handle(struct wil6210_priv *wil, 1593 struct wil6210_mbox_hdr *hdr) 1594 { 1595 u16 len = le16_to_cpu(hdr->len); 1596 1597 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1598 (len >= sizeof(struct wmi_cmd_hdr))) { 1599 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]); 1600 void *evt_data = (void *)(&wmi[1]); 1601 u16 id = le16_to_cpu(wmi->command_id); 1602 1603 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1604 id, wil->reply_id); 1605 /* check if someone waits for this event */ 1606 if (wil->reply_id && wil->reply_id == id) { 1607 WARN_ON(wil->reply_buf); 1608 wmi_evt_call_handler(wil, id, evt_data, 1609 len - sizeof(*wmi)); 1610 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 1611 __func__, id); 1612 complete(&wil->wmi_call); 1613 return; 1614 } 1615 /* unsolicited event */ 1616 /* search for handler */ 1617 if (!wmi_evt_call_handler(wil, id, evt_data, 1618 len - sizeof(*wmi))) { 1619 wil_info(wil, "Unhandled event 0x%04x\n", id); 1620 } 1621 } else { 1622 wil_err(wil, "Unknown event type\n"); 1623 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1624 hdr, sizeof(*hdr) + len, true); 1625 } 1626 } 1627 1628 /* 1629 * Retrieve next WMI event from the pending list 1630 */ 1631 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1632 { 1633 ulong flags; 1634 struct list_head *ret = NULL; 1635 1636 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1637 1638 if (!list_empty(&wil->pending_wmi_ev)) { 1639 ret = wil->pending_wmi_ev.next; 1640 list_del(ret); 1641 } 1642 1643 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1644 1645 return ret; 1646 } 1647 1648 /* 1649 * Handler for the WMI events 1650 */ 1651 void wmi_event_worker(struct work_struct *work) 1652 { 1653 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1654 wmi_event_worker); 1655 struct pending_wmi_event *evt; 1656 struct list_head *lh; 1657 1658 wil_dbg_wmi(wil, "Start %s\n", __func__); 1659 while ((lh = next_wmi_ev(wil)) != NULL) { 1660 evt = list_entry(lh, struct pending_wmi_event, list); 1661 wmi_event_handle(wil, &evt->event.hdr); 1662 kfree(evt); 1663 } 1664 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1665 } 1666