1 /* 2 * Copyright (c) 2012-2015 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 /** 36 * WMI event receiving - theory of operations 37 * 38 * When firmware about to report WMI event, it fills memory area 39 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for 40 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler. 41 * 42 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the 43 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up 44 * and handles events within the @wmi_event_worker. Every event get detached 45 * from list, processed and deleted. 46 * 47 * Purpose for this mechanism is to release IRQ thread; otherwise, 48 * if WMI event handling involves another WMI command flow, this 2-nd flow 49 * won't be completed because of blocked IRQ thread. 50 */ 51 52 /** 53 * Addressing - theory of operations 54 * 55 * There are several buses present on the WIL6210 card. 56 * Same memory areas are visible at different address on 57 * the different busses. There are 3 main bus masters: 58 * - MAC CPU (ucode) 59 * - User CPU (firmware) 60 * - AHB (host) 61 * 62 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing 63 * AHB addresses starting from 0x880000 64 * 65 * Internally, firmware uses addresses that allows faster access but 66 * are invisible from the host. To read from these addresses, alternative 67 * AHB address must be used. 68 * 69 * Memory mapping 70 * Linker address PCI/Host address 71 * 0x880000 .. 0xa80000 2Mb BAR0 72 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM 73 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH 74 */ 75 76 /** 77 * @fw_mapping provides memory remapping table 78 * 79 * array size should be in sync with the declaration in the wil6210.h 80 */ 81 const struct fw_map fw_mapping[] = { 82 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */ 83 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */ 84 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */ 85 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */ 86 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */ 87 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */ 88 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext"}, /* mac_ext_rgf 512b */ 89 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */ 90 /* 91 * 920000..930000 ucode code RAM 92 * 930000..932000 ucode data RAM 93 * 932000..949000 back-door debug data 94 */ 95 }; 96 97 /** 98 * return AHB address for given firmware/ucode internal (linker) address 99 * @x - internal address 100 * If address have no valid AHB mapping, return 0 101 */ 102 static u32 wmi_addr_remap(u32 x) 103 { 104 uint i; 105 106 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 107 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)) 108 return x + fw_mapping[i].host - fw_mapping[i].from; 109 } 110 111 return 0; 112 } 113 114 /** 115 * Check address validity for WMI buffer; remap if needed 116 * @ptr - internal (linker) fw/ucode address 117 * 118 * Valid buffer should be DWORD aligned 119 * 120 * return address for accessing buffer from the host; 121 * if buffer is not valid, return NULL. 122 */ 123 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_) 124 { 125 u32 off; 126 u32 ptr = le32_to_cpu(ptr_); 127 128 if (ptr % 4) 129 return NULL; 130 131 ptr = wmi_addr_remap(ptr); 132 if (ptr < WIL6210_FW_HOST_OFF) 133 return NULL; 134 135 off = HOSTADDR(ptr); 136 if (off > WIL6210_MEM_SIZE - 4) 137 return NULL; 138 139 return wil->csr + off; 140 } 141 142 /** 143 * Check address validity 144 */ 145 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr) 146 { 147 u32 off; 148 149 if (ptr % 4) 150 return NULL; 151 152 if (ptr < WIL6210_FW_HOST_OFF) 153 return NULL; 154 155 off = HOSTADDR(ptr); 156 if (off > WIL6210_MEM_SIZE - 4) 157 return NULL; 158 159 return wil->csr + off; 160 } 161 162 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, 163 struct wil6210_mbox_hdr *hdr) 164 { 165 void __iomem *src = wmi_buffer(wil, ptr); 166 167 if (!src) 168 return -EINVAL; 169 170 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr)); 171 172 return 0; 173 } 174 175 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 176 { 177 struct { 178 struct wil6210_mbox_hdr hdr; 179 struct wil6210_mbox_hdr_wmi wmi; 180 } __packed cmd = { 181 .hdr = { 182 .type = WIL_MBOX_HDR_TYPE_WMI, 183 .flags = 0, 184 .len = cpu_to_le16(sizeof(cmd.wmi) + len), 185 }, 186 .wmi = { 187 .mid = 0, 188 .id = cpu_to_le16(cmdid), 189 }, 190 }; 191 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx; 192 struct wil6210_mbox_ring_desc d_head; 193 u32 next_head; 194 void __iomem *dst; 195 void __iomem *head = wmi_addr(wil, r->head); 196 uint retry; 197 198 if (sizeof(cmd) + len > r->entry_size) { 199 wil_err(wil, "WMI size too large: %d bytes, max is %d\n", 200 (int)(sizeof(cmd) + len), r->entry_size); 201 return -ERANGE; 202 } 203 204 might_sleep(); 205 206 if (!test_bit(wil_status_fwready, wil->status)) { 207 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 208 return -EAGAIN; 209 } 210 211 if (!head) { 212 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head); 213 return -EINVAL; 214 } 215 /* read Tx head till it is not busy */ 216 for (retry = 5; retry > 0; retry--) { 217 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head)); 218 if (d_head.sync == 0) 219 break; 220 msleep(20); 221 } 222 if (d_head.sync != 0) { 223 wil_err(wil, "WMI head busy\n"); 224 return -EBUSY; 225 } 226 /* next head */ 227 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size); 228 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head); 229 /* wait till FW finish with previous command */ 230 for (retry = 5; retry > 0; retry--) { 231 r->tail = wil_r(wil, RGF_MBOX + 232 offsetof(struct wil6210_mbox_ctl, tx.tail)); 233 if (next_head != r->tail) 234 break; 235 msleep(20); 236 } 237 if (next_head == r->tail) { 238 wil_err(wil, "WMI ring full\n"); 239 return -EBUSY; 240 } 241 dst = wmi_buffer(wil, d_head.addr); 242 if (!dst) { 243 wil_err(wil, "invalid WMI buffer: 0x%08x\n", 244 le32_to_cpu(d_head.addr)); 245 return -EINVAL; 246 } 247 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); 248 /* set command */ 249 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len); 250 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, 251 sizeof(cmd), true); 252 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, 253 len, true); 254 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); 255 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); 256 /* mark entry as full */ 257 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1); 258 /* advance next ptr */ 259 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head), 260 r->head = next_head); 261 262 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 263 264 /* interrupt to FW */ 265 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS), 266 SW_INT_MBOX); 267 268 return 0; 269 } 270 271 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 272 { 273 int rc; 274 275 mutex_lock(&wil->wmi_mutex); 276 rc = __wmi_send(wil, cmdid, buf, len); 277 mutex_unlock(&wil->wmi_mutex); 278 279 return rc; 280 } 281 282 /*=== Event handlers ===*/ 283 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 284 { 285 struct wireless_dev *wdev = wil->wdev; 286 struct wmi_ready_event *evt = d; 287 288 wil->fw_version = le32_to_cpu(evt->sw_version); 289 wil->n_mids = evt->numof_additional_mids; 290 291 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version, 292 evt->mac, wil->n_mids); 293 /* ignore MAC address, we already have it from the boot loader */ 294 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), 295 "%d", wil->fw_version); 296 } 297 298 static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d, 299 int len) 300 { 301 wil_dbg_wmi(wil, "WMI: got FW ready event\n"); 302 303 wil_set_recovery_state(wil, fw_recovery_idle); 304 set_bit(wil_status_fwready, wil->status); 305 /* let the reset sequence continue */ 306 complete(&wil->wmi_ready); 307 } 308 309 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 310 { 311 struct wmi_rx_mgmt_packet_event *data = d; 312 struct wiphy *wiphy = wil_to_wiphy(wil); 313 struct ieee80211_mgmt *rx_mgmt_frame = 314 (struct ieee80211_mgmt *)data->payload; 315 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload); 316 int ch_no; 317 u32 freq; 318 struct ieee80211_channel *channel; 319 s32 signal; 320 __le16 fc; 321 u32 d_len; 322 u16 d_status; 323 324 if (flen < 0) { 325 wil_err(wil, "MGMT Rx: short event, len %d\n", len); 326 return; 327 } 328 329 d_len = le32_to_cpu(data->info.len); 330 if (d_len != flen) { 331 wil_err(wil, 332 "MGMT Rx: length mismatch, d_len %d should be %d\n", 333 d_len, flen); 334 return; 335 } 336 337 ch_no = data->info.channel + 1; 338 freq = ieee80211_channel_to_frequency(ch_no, IEEE80211_BAND_60GHZ); 339 channel = ieee80211_get_channel(wiphy, freq); 340 signal = data->info.sqi; 341 d_status = le16_to_cpu(data->info.status); 342 fc = rx_mgmt_frame->frame_control; 343 344 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n", 345 data->info.channel, data->info.mcs, data->info.snr, 346 data->info.sqi); 347 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 348 le16_to_cpu(fc)); 349 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 350 data->info.qid, data->info.mid, data->info.cid); 351 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, 352 d_len, true); 353 354 if (!channel) { 355 wil_err(wil, "Frame on unsupported channel\n"); 356 return; 357 } 358 359 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 360 struct cfg80211_bss *bss; 361 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 362 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 363 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 364 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 365 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 366 u.beacon.variable); 367 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 368 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 369 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 370 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 371 ie_len, true); 372 373 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 374 d_len, signal, GFP_KERNEL); 375 if (bss) { 376 wil_dbg_wmi(wil, "Added BSS %pM\n", 377 rx_mgmt_frame->bssid); 378 cfg80211_put_bss(wiphy, bss); 379 } else { 380 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 381 } 382 } else { 383 cfg80211_rx_mgmt(wil->wdev, freq, signal, 384 (void *)rx_mgmt_frame, d_len, 0); 385 } 386 } 387 388 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 389 { 390 struct wmi_tx_mgmt_packet_event *data = d; 391 struct ieee80211_mgmt *mgmt_frame = 392 (struct ieee80211_mgmt *)data->payload; 393 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload); 394 395 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame, 396 flen, true); 397 } 398 399 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 400 void *d, int len) 401 { 402 if (wil->scan_request) { 403 struct wmi_scan_complete_event *data = d; 404 bool aborted = (data->status != WMI_SCAN_SUCCESS); 405 406 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 407 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 408 wil->scan_request, aborted); 409 410 del_timer_sync(&wil->scan_timer); 411 cfg80211_scan_done(wil->scan_request, aborted); 412 wil->scan_request = NULL; 413 } else { 414 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 415 } 416 } 417 418 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 419 { 420 struct net_device *ndev = wil_to_ndev(wil); 421 struct wireless_dev *wdev = wil->wdev; 422 struct wmi_connect_event *evt = d; 423 int ch; /* channel number */ 424 struct station_info sinfo; 425 u8 *assoc_req_ie, *assoc_resp_ie; 426 size_t assoc_req_ielen, assoc_resp_ielen; 427 /* capinfo(u16) + listen_interval(u16) + IEs */ 428 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 429 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 430 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 431 432 if (len < sizeof(*evt)) { 433 wil_err(wil, "Connect event too short : %d bytes\n", len); 434 return; 435 } 436 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 437 evt->assoc_resp_len) { 438 wil_err(wil, 439 "Connect event corrupted : %d != %d + %d + %d + %d\n", 440 len, (int)sizeof(*evt), evt->beacon_ie_len, 441 evt->assoc_req_len, evt->assoc_resp_len); 442 return; 443 } 444 if (evt->cid >= WIL6210_MAX_CID) { 445 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 446 return; 447 } 448 449 ch = evt->channel + 1; 450 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n", 451 evt->bssid, ch, evt->cid); 452 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 453 evt->assoc_info, len - sizeof(*evt), true); 454 455 /* figure out IE's */ 456 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 457 assoc_req_ie_offset]; 458 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 459 if (evt->assoc_req_len <= assoc_req_ie_offset) { 460 assoc_req_ie = NULL; 461 assoc_req_ielen = 0; 462 } 463 464 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 465 evt->assoc_req_len + 466 assoc_resp_ie_offset]; 467 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 468 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 469 assoc_resp_ie = NULL; 470 assoc_resp_ielen = 0; 471 } 472 473 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 474 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 475 if (!test_bit(wil_status_fwconnecting, wil->status)) { 476 wil_err(wil, "Not in connecting state\n"); 477 return; 478 } 479 del_timer_sync(&wil->connect_timer); 480 cfg80211_connect_result(ndev, evt->bssid, 481 assoc_req_ie, assoc_req_ielen, 482 assoc_resp_ie, assoc_resp_ielen, 483 WLAN_STATUS_SUCCESS, GFP_KERNEL); 484 485 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 486 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 487 memset(&sinfo, 0, sizeof(sinfo)); 488 489 sinfo.generation = wil->sinfo_gen++; 490 491 if (assoc_req_ie) { 492 sinfo.assoc_req_ies = assoc_req_ie; 493 sinfo.assoc_req_ies_len = assoc_req_ielen; 494 } 495 496 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 497 } 498 clear_bit(wil_status_fwconnecting, wil->status); 499 set_bit(wil_status_fwconnected, wil->status); 500 501 /* FIXME FW can transmit only ucast frames to peer */ 502 /* FIXME real ring_id instead of hard coded 0 */ 503 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 504 wil->sta[evt->cid].status = wil_sta_conn_pending; 505 506 wil->pending_connect_cid = evt->cid; 507 queue_work(wil->wq_service, &wil->connect_worker); 508 } 509 510 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 511 void *d, int len) 512 { 513 struct wmi_disconnect_event *evt = d; 514 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 515 516 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 517 evt->bssid, reason_code, evt->disconnect_reason); 518 519 wil->sinfo_gen++; 520 521 mutex_lock(&wil->mutex); 522 wil6210_disconnect(wil, evt->bssid, reason_code, true); 523 mutex_unlock(&wil->mutex); 524 } 525 526 /* 527 * Firmware reports EAPOL frame using WME event. 528 * Reconstruct Ethernet frame and deliver it via normal Rx 529 */ 530 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 531 void *d, int len) 532 { 533 struct net_device *ndev = wil_to_ndev(wil); 534 struct wmi_eapol_rx_event *evt = d; 535 u16 eapol_len = le16_to_cpu(evt->eapol_len); 536 int sz = eapol_len + ETH_HLEN; 537 struct sk_buff *skb; 538 struct ethhdr *eth; 539 int cid; 540 struct wil_net_stats *stats = NULL; 541 542 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 543 evt->src_mac); 544 545 cid = wil_find_cid(wil, evt->src_mac); 546 if (cid >= 0) 547 stats = &wil->sta[cid].stats; 548 549 if (eapol_len > 196) { /* TODO: revisit size limit */ 550 wil_err(wil, "EAPOL too large\n"); 551 return; 552 } 553 554 skb = alloc_skb(sz, GFP_KERNEL); 555 if (!skb) { 556 wil_err(wil, "Failed to allocate skb\n"); 557 return; 558 } 559 560 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 561 ether_addr_copy(eth->h_dest, ndev->dev_addr); 562 ether_addr_copy(eth->h_source, evt->src_mac); 563 eth->h_proto = cpu_to_be16(ETH_P_PAE); 564 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 565 skb->protocol = eth_type_trans(skb, ndev); 566 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 567 ndev->stats.rx_packets++; 568 ndev->stats.rx_bytes += sz; 569 if (stats) { 570 stats->rx_packets++; 571 stats->rx_bytes += sz; 572 } 573 } else { 574 ndev->stats.rx_dropped++; 575 if (stats) 576 stats->rx_dropped++; 577 } 578 } 579 580 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 581 { 582 struct wmi_vring_en_event *evt = d; 583 u8 vri = evt->vring_index; 584 585 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 586 587 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 588 wil_err(wil, "Enable for invalid vring %d\n", vri); 589 return; 590 } 591 wil->vring_tx_data[vri].dot1x_open = true; 592 if (vri == wil->bcast_vring) /* no BA for bcast */ 593 return; 594 if (agg_wsize >= 0) 595 wil_addba_tx_request(wil, vri, agg_wsize); 596 } 597 598 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 599 int len) 600 { 601 struct wmi_vring_ba_status_event *evt = d; 602 struct vring_tx_data *txdata; 603 604 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 605 evt->ringid, 606 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 607 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 608 evt->amsdu ? "+" : "-"); 609 610 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 611 wil_err(wil, "invalid ring id %d\n", evt->ringid); 612 return; 613 } 614 615 if (evt->status != WMI_BA_AGREED) { 616 evt->ba_timeout = 0; 617 evt->agg_wsize = 0; 618 evt->amsdu = 0; 619 } 620 621 txdata = &wil->vring_tx_data[evt->ringid]; 622 623 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 624 txdata->agg_wsize = evt->agg_wsize; 625 txdata->agg_amsdu = evt->amsdu; 626 txdata->addba_in_progress = false; 627 } 628 629 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 630 int len) 631 { 632 struct wmi_rcp_addba_req_event *evt = d; 633 634 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 635 evt->ba_param_set, evt->ba_timeout, 636 evt->ba_seq_ctrl); 637 } 638 639 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 640 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 641 { 642 struct wmi_delba_event *evt = d; 643 u8 cid, tid; 644 u16 reason = __le16_to_cpu(evt->reason); 645 struct wil_sta_info *sta; 646 struct wil_tid_ampdu_rx *r; 647 648 might_sleep(); 649 parse_cidxtid(evt->cidxtid, &cid, &tid); 650 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 651 cid, tid, 652 evt->from_initiator ? "originator" : "recipient", 653 reason); 654 if (!evt->from_initiator) { 655 int i; 656 /* find Tx vring it belongs to */ 657 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 658 if ((wil->vring2cid_tid[i][0] == cid) && 659 (wil->vring2cid_tid[i][1] == tid)) { 660 struct vring_tx_data *txdata = 661 &wil->vring_tx_data[i]; 662 663 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 664 txdata->agg_timeout = 0; 665 txdata->agg_wsize = 0; 666 txdata->addba_in_progress = false; 667 668 break; /* max. 1 matching ring */ 669 } 670 } 671 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 672 wil_err(wil, "DELBA: unable to find Tx vring\n"); 673 return; 674 } 675 676 sta = &wil->sta[cid]; 677 678 spin_lock_bh(&sta->tid_rx_lock); 679 680 r = sta->tid_rx[tid]; 681 sta->tid_rx[tid] = NULL; 682 wil_tid_ampdu_rx_free(wil, r); 683 684 spin_unlock_bh(&sta->tid_rx_lock); 685 } 686 687 static const struct { 688 int eventid; 689 void (*handler)(struct wil6210_priv *wil, int eventid, 690 void *data, int data_len); 691 } wmi_evt_handlers[] = { 692 {WMI_READY_EVENTID, wmi_evt_ready}, 693 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready}, 694 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 695 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 696 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 697 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 698 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 699 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 700 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 701 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 702 {WMI_DELBA_EVENTID, wmi_evt_delba}, 703 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 704 }; 705 706 /* 707 * Run in IRQ context 708 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 709 * that will be eventually handled by the @wmi_event_worker in the thread 710 * context of thread "wil6210_wmi" 711 */ 712 void wmi_recv_cmd(struct wil6210_priv *wil) 713 { 714 struct wil6210_mbox_ring_desc d_tail; 715 struct wil6210_mbox_hdr hdr; 716 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 717 struct pending_wmi_event *evt; 718 u8 *cmd; 719 void __iomem *src; 720 ulong flags; 721 unsigned n; 722 723 if (!test_bit(wil_status_reset_done, wil->status)) { 724 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 725 return; 726 } 727 728 for (n = 0;; n++) { 729 u16 len; 730 bool q; 731 732 r->head = wil_r(wil, RGF_MBOX + 733 offsetof(struct wil6210_mbox_ctl, rx.head)); 734 if (r->tail == r->head) 735 break; 736 737 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 738 r->head, r->tail); 739 /* read cmd descriptor from tail */ 740 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 741 sizeof(struct wil6210_mbox_ring_desc)); 742 if (d_tail.sync == 0) { 743 wil_err(wil, "Mbox evt not owned by FW?\n"); 744 break; 745 } 746 747 /* read cmd header from descriptor */ 748 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 749 wil_err(wil, "Mbox evt at 0x%08x?\n", 750 le32_to_cpu(d_tail.addr)); 751 break; 752 } 753 len = le16_to_cpu(hdr.len); 754 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 755 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 756 hdr.flags); 757 758 /* read cmd buffer from descriptor */ 759 src = wmi_buffer(wil, d_tail.addr) + 760 sizeof(struct wil6210_mbox_hdr); 761 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 762 event.wmi) + len, 4), 763 GFP_KERNEL); 764 if (!evt) 765 break; 766 767 evt->event.hdr = hdr; 768 cmd = (void *)&evt->event.wmi; 769 wil_memcpy_fromio_32(cmd, src, len); 770 /* mark entry as empty */ 771 wil_w(wil, r->tail + 772 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 773 /* indicate */ 774 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 775 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 776 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi; 777 u16 id = le16_to_cpu(wmi->id); 778 u32 tstamp = le32_to_cpu(wmi->timestamp); 779 780 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 781 id, wmi->mid, tstamp); 782 trace_wil6210_wmi_event(wmi, &wmi[1], 783 len - sizeof(*wmi)); 784 } 785 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 786 &evt->event.hdr, sizeof(hdr) + len, true); 787 788 /* advance tail */ 789 r->tail = r->base + ((r->tail - r->base + 790 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 791 wil_w(wil, RGF_MBOX + 792 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 793 794 /* add to the pending list */ 795 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 796 list_add_tail(&evt->list, &wil->pending_wmi_ev); 797 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 798 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 799 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 800 } 801 /* normally, 1 event per IRQ should be processed */ 802 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n); 803 } 804 805 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 806 u16 reply_id, void *reply, u8 reply_size, int to_msec) 807 { 808 int rc; 809 unsigned long remain; 810 811 mutex_lock(&wil->wmi_mutex); 812 813 rc = __wmi_send(wil, cmdid, buf, len); 814 if (rc) 815 goto out; 816 817 wil->reply_id = reply_id; 818 wil->reply_buf = reply; 819 wil->reply_size = reply_size; 820 remain = wait_for_completion_timeout(&wil->wmi_call, 821 msecs_to_jiffies(to_msec)); 822 if (0 == remain) { 823 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 824 cmdid, reply_id, to_msec); 825 rc = -ETIME; 826 } else { 827 wil_dbg_wmi(wil, 828 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 829 cmdid, reply_id, 830 to_msec - jiffies_to_msecs(remain)); 831 } 832 wil->reply_id = 0; 833 wil->reply_buf = NULL; 834 wil->reply_size = 0; 835 out: 836 mutex_unlock(&wil->wmi_mutex); 837 838 return rc; 839 } 840 841 int wmi_echo(struct wil6210_priv *wil) 842 { 843 struct wmi_echo_cmd cmd = { 844 .value = cpu_to_le32(0x12345678), 845 }; 846 847 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 848 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 849 } 850 851 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 852 { 853 struct wmi_set_mac_address_cmd cmd; 854 855 ether_addr_copy(cmd.mac, addr); 856 857 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 858 859 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 860 } 861 862 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 863 u8 chan, u8 hidden_ssid) 864 { 865 int rc; 866 867 struct wmi_pcp_start_cmd cmd = { 868 .bcon_interval = cpu_to_le16(bi), 869 .network_type = wmi_nettype, 870 .disable_sec_offload = 1, 871 .channel = chan - 1, 872 .pcp_max_assoc_sta = max_assoc_sta, 873 .hidden_ssid = hidden_ssid, 874 }; 875 struct { 876 struct wil6210_mbox_hdr_wmi wmi; 877 struct wmi_pcp_started_event evt; 878 } __packed reply; 879 880 if (!wil->privacy) 881 cmd.disable_sec = 1; 882 883 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 884 (cmd.pcp_max_assoc_sta <= 0)) { 885 wil_info(wil, 886 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 887 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 888 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 889 } 890 891 /* 892 * Processing time may be huge, in case of secure AP it takes about 893 * 3500ms for FW to start AP 894 */ 895 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 896 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 897 if (rc) 898 return rc; 899 900 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 901 rc = -EINVAL; 902 903 return rc; 904 } 905 906 int wmi_pcp_stop(struct wil6210_priv *wil) 907 { 908 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 909 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 910 } 911 912 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 913 { 914 struct wmi_set_ssid_cmd cmd = { 915 .ssid_len = cpu_to_le32(ssid_len), 916 }; 917 918 if (ssid_len > sizeof(cmd.ssid)) 919 return -EINVAL; 920 921 memcpy(cmd.ssid, ssid, ssid_len); 922 923 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 924 } 925 926 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 927 { 928 int rc; 929 struct { 930 struct wil6210_mbox_hdr_wmi wmi; 931 struct wmi_set_ssid_cmd cmd; 932 } __packed reply; 933 int len; /* reply.cmd.ssid_len in CPU order */ 934 935 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 936 &reply, sizeof(reply), 20); 937 if (rc) 938 return rc; 939 940 len = le32_to_cpu(reply.cmd.ssid_len); 941 if (len > sizeof(reply.cmd.ssid)) 942 return -EINVAL; 943 944 *ssid_len = len; 945 memcpy(ssid, reply.cmd.ssid, len); 946 947 return 0; 948 } 949 950 int wmi_set_channel(struct wil6210_priv *wil, int channel) 951 { 952 struct wmi_set_pcp_channel_cmd cmd = { 953 .channel = channel - 1, 954 }; 955 956 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 957 } 958 959 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 960 { 961 int rc; 962 struct { 963 struct wil6210_mbox_hdr_wmi wmi; 964 struct wmi_set_pcp_channel_cmd cmd; 965 } __packed reply; 966 967 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 968 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 969 if (rc) 970 return rc; 971 972 if (reply.cmd.channel > 3) 973 return -EINVAL; 974 975 *channel = reply.cmd.channel + 1; 976 977 return 0; 978 } 979 980 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel) 981 { 982 struct wmi_p2p_cfg_cmd cmd = { 983 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD, 984 .channel = channel - 1, 985 }; 986 987 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd)); 988 } 989 990 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 991 const void *mac_addr, int key_usage) 992 { 993 struct wmi_delete_cipher_key_cmd cmd = { 994 .key_index = key_index, 995 }; 996 997 if (mac_addr) 998 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 999 1000 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1001 } 1002 1003 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1004 const void *mac_addr, int key_len, const void *key, 1005 int key_usage) 1006 { 1007 struct wmi_add_cipher_key_cmd cmd = { 1008 .key_index = key_index, 1009 .key_usage = key_usage, 1010 .key_len = key_len, 1011 }; 1012 1013 if (!key || (key_len > sizeof(cmd.key))) 1014 return -EINVAL; 1015 1016 memcpy(cmd.key, key, key_len); 1017 if (mac_addr) 1018 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1019 1020 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1021 } 1022 1023 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1024 { 1025 static const char *const names[] = { 1026 [WMI_FRAME_BEACON] = "BEACON", 1027 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1028 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1029 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1030 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1031 }; 1032 int rc; 1033 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1034 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1035 1036 if (!cmd) { 1037 rc = -ENOMEM; 1038 goto out; 1039 } 1040 if (!ie) 1041 ie_len = 0; 1042 1043 cmd->mgmt_frm_type = type; 1044 /* BUG: FW API define ieLen as u8. Will fix FW */ 1045 cmd->ie_len = cpu_to_le16(ie_len); 1046 memcpy(cmd->ie_info, ie, ie_len); 1047 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1048 kfree(cmd); 1049 out: 1050 if (rc) { 1051 const char *name = type < ARRAY_SIZE(names) ? 1052 names[type] : "??"; 1053 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1054 } 1055 1056 return rc; 1057 } 1058 1059 /** 1060 * wmi_rxon - turn radio on/off 1061 * @on: turn on if true, off otherwise 1062 * 1063 * Only switch radio. Channel should be set separately. 1064 * No timeout for rxon - radio turned on forever unless some other call 1065 * turns it off 1066 */ 1067 int wmi_rxon(struct wil6210_priv *wil, bool on) 1068 { 1069 int rc; 1070 struct { 1071 struct wil6210_mbox_hdr_wmi wmi; 1072 struct wmi_listen_started_event evt; 1073 } __packed reply; 1074 1075 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1076 1077 if (on) { 1078 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1079 WMI_LISTEN_STARTED_EVENTID, 1080 &reply, sizeof(reply), 100); 1081 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1082 rc = -EINVAL; 1083 } else { 1084 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1085 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1086 } 1087 1088 return rc; 1089 } 1090 1091 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1092 { 1093 struct wireless_dev *wdev = wil->wdev; 1094 struct net_device *ndev = wil_to_ndev(wil); 1095 struct wmi_cfg_rx_chain_cmd cmd = { 1096 .action = WMI_RX_CHAIN_ADD, 1097 .rx_sw_ring = { 1098 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1099 .ring_mem_base = cpu_to_le64(vring->pa), 1100 .ring_size = cpu_to_le16(vring->size), 1101 }, 1102 .mid = 0, /* TODO - what is it? */ 1103 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1104 .reorder_type = WMI_RX_SW_REORDER, 1105 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1106 }; 1107 struct { 1108 struct wil6210_mbox_hdr_wmi wmi; 1109 struct wmi_cfg_rx_chain_done_event evt; 1110 } __packed evt; 1111 int rc; 1112 1113 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1114 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1115 1116 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1117 if (ch) 1118 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1119 cmd.sniffer_cfg.phy_info_mode = 1120 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1121 cmd.sniffer_cfg.phy_support = 1122 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1123 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP); 1124 } else { 1125 /* Initialize offload (in non-sniffer mode). 1126 * Linux IP stack always calculates IP checksum 1127 * HW always calculate TCP/UDP checksum 1128 */ 1129 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1130 } 1131 1132 if (rx_align_2) 1133 cmd.l2_802_3_offload_ctrl |= 1134 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1135 1136 /* typical time for secure PCP is 840ms */ 1137 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1138 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1139 if (rc) 1140 return rc; 1141 1142 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1143 1144 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1145 le32_to_cpu(evt.evt.status), vring->hwtail); 1146 1147 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1148 rc = -EINVAL; 1149 1150 return rc; 1151 } 1152 1153 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1154 { 1155 int rc; 1156 struct wmi_temp_sense_cmd cmd = { 1157 .measure_baseband_en = cpu_to_le32(!!t_bb), 1158 .measure_rf_en = cpu_to_le32(!!t_rf), 1159 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1160 }; 1161 struct { 1162 struct wil6210_mbox_hdr_wmi wmi; 1163 struct wmi_temp_sense_done_event evt; 1164 } __packed reply; 1165 1166 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1167 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1168 if (rc) 1169 return rc; 1170 1171 if (t_bb) 1172 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1173 if (t_rf) 1174 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1175 1176 return 0; 1177 } 1178 1179 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason) 1180 { 1181 int rc; 1182 u16 reason_code; 1183 struct wmi_disconnect_sta_cmd cmd = { 1184 .disconnect_reason = cpu_to_le16(reason), 1185 }; 1186 struct { 1187 struct wil6210_mbox_hdr_wmi wmi; 1188 struct wmi_disconnect_event evt; 1189 } __packed reply; 1190 1191 ether_addr_copy(cmd.dst_mac, mac); 1192 1193 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1194 1195 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), 1196 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); 1197 /* failure to disconnect in reasonable time treated as FW error */ 1198 if (rc) { 1199 wil_fw_error_recovery(wil); 1200 return rc; 1201 } 1202 1203 /* call event handler manually after processing wmi_call, 1204 * to avoid deadlock - disconnect event handler acquires wil->mutex 1205 * while it is already held here 1206 */ 1207 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1208 1209 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1210 reply.evt.bssid, reason_code, 1211 reply.evt.disconnect_reason); 1212 1213 wil->sinfo_gen++; 1214 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1215 1216 return 0; 1217 } 1218 1219 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1220 { 1221 struct wmi_vring_ba_en_cmd cmd = { 1222 .ringid = ringid, 1223 .agg_max_wsize = size, 1224 .ba_timeout = cpu_to_le16(timeout), 1225 .amsdu = 0, 1226 }; 1227 1228 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1229 ringid, size, timeout); 1230 1231 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1232 } 1233 1234 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1235 { 1236 struct wmi_vring_ba_dis_cmd cmd = { 1237 .ringid = ringid, 1238 .reason = cpu_to_le16(reason), 1239 }; 1240 1241 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1242 ringid, reason); 1243 1244 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1245 } 1246 1247 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1248 { 1249 struct wmi_rcp_delba_cmd cmd = { 1250 .cidxtid = cidxtid, 1251 .reason = cpu_to_le16(reason), 1252 }; 1253 1254 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1255 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1256 1257 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1258 } 1259 1260 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1261 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1262 { 1263 int rc; 1264 struct wmi_rcp_addba_resp_cmd cmd = { 1265 .cidxtid = mk_cidxtid(cid, tid), 1266 .dialog_token = token, 1267 .status_code = cpu_to_le16(status), 1268 /* bit 0: A-MSDU supported 1269 * bit 1: policy (should be 0 for us) 1270 * bits 2..5: TID 1271 * bits 6..15: buffer size 1272 */ 1273 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1274 (agg_wsize << 6)), 1275 .ba_timeout = cpu_to_le16(timeout), 1276 }; 1277 struct { 1278 struct wil6210_mbox_hdr_wmi wmi; 1279 struct wmi_rcp_addba_resp_sent_event evt; 1280 } __packed reply; 1281 1282 wil_dbg_wmi(wil, 1283 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1284 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1285 1286 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1287 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1288 100); 1289 if (rc) 1290 return rc; 1291 1292 if (reply.evt.status) { 1293 wil_err(wil, "ADDBA response failed with status %d\n", 1294 le16_to_cpu(reply.evt.status)); 1295 rc = -EINVAL; 1296 } 1297 1298 return rc; 1299 } 1300 1301 void wmi_event_flush(struct wil6210_priv *wil) 1302 { 1303 struct pending_wmi_event *evt, *t; 1304 1305 wil_dbg_wmi(wil, "%s()\n", __func__); 1306 1307 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1308 list_del(&evt->list); 1309 kfree(evt); 1310 } 1311 } 1312 1313 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1314 void *d, int len) 1315 { 1316 uint i; 1317 1318 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1319 if (wmi_evt_handlers[i].eventid == id) { 1320 wmi_evt_handlers[i].handler(wil, id, d, len); 1321 return true; 1322 } 1323 } 1324 1325 return false; 1326 } 1327 1328 static void wmi_event_handle(struct wil6210_priv *wil, 1329 struct wil6210_mbox_hdr *hdr) 1330 { 1331 u16 len = le16_to_cpu(hdr->len); 1332 1333 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1334 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 1335 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); 1336 void *evt_data = (void *)(&wmi[1]); 1337 u16 id = le16_to_cpu(wmi->id); 1338 1339 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1340 id, wil->reply_id); 1341 /* check if someone waits for this event */ 1342 if (wil->reply_id && wil->reply_id == id) { 1343 if (wil->reply_buf) { 1344 memcpy(wil->reply_buf, wmi, 1345 min(len, wil->reply_size)); 1346 } else { 1347 wmi_evt_call_handler(wil, id, evt_data, 1348 len - sizeof(*wmi)); 1349 } 1350 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id); 1351 complete(&wil->wmi_call); 1352 return; 1353 } 1354 /* unsolicited event */ 1355 /* search for handler */ 1356 if (!wmi_evt_call_handler(wil, id, evt_data, 1357 len - sizeof(*wmi))) { 1358 wil_info(wil, "Unhandled event 0x%04x\n", id); 1359 } 1360 } else { 1361 wil_err(wil, "Unknown event type\n"); 1362 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1363 hdr, sizeof(*hdr) + len, true); 1364 } 1365 } 1366 1367 /* 1368 * Retrieve next WMI event from the pending list 1369 */ 1370 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1371 { 1372 ulong flags; 1373 struct list_head *ret = NULL; 1374 1375 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1376 1377 if (!list_empty(&wil->pending_wmi_ev)) { 1378 ret = wil->pending_wmi_ev.next; 1379 list_del(ret); 1380 } 1381 1382 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1383 1384 return ret; 1385 } 1386 1387 /* 1388 * Handler for the WMI events 1389 */ 1390 void wmi_event_worker(struct work_struct *work) 1391 { 1392 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1393 wmi_event_worker); 1394 struct pending_wmi_event *evt; 1395 struct list_head *lh; 1396 1397 wil_dbg_wmi(wil, "Start %s\n", __func__); 1398 while ((lh = next_wmi_ev(wil)) != NULL) { 1399 evt = list_entry(lh, struct pending_wmi_event, list); 1400 wmi_event_handle(wil, &evt->event.hdr); 1401 kfree(evt); 1402 } 1403 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1404 } 1405