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 wil_set_recovery_state(wil, fw_recovery_idle); 298 set_bit(wil_status_fwready, wil->status); 299 /* let the reset sequence continue */ 300 complete(&wil->wmi_ready); 301 } 302 303 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 304 { 305 struct wmi_rx_mgmt_packet_event *data = d; 306 struct wiphy *wiphy = wil_to_wiphy(wil); 307 struct ieee80211_mgmt *rx_mgmt_frame = 308 (struct ieee80211_mgmt *)data->payload; 309 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload); 310 int ch_no; 311 u32 freq; 312 struct ieee80211_channel *channel; 313 s32 signal; 314 __le16 fc; 315 u32 d_len; 316 u16 d_status; 317 318 if (flen < 0) { 319 wil_err(wil, "MGMT Rx: short event, len %d\n", len); 320 return; 321 } 322 323 d_len = le32_to_cpu(data->info.len); 324 if (d_len != flen) { 325 wil_err(wil, 326 "MGMT Rx: length mismatch, d_len %d should be %d\n", 327 d_len, flen); 328 return; 329 } 330 331 ch_no = data->info.channel + 1; 332 freq = ieee80211_channel_to_frequency(ch_no, IEEE80211_BAND_60GHZ); 333 channel = ieee80211_get_channel(wiphy, freq); 334 signal = data->info.sqi; 335 d_status = le16_to_cpu(data->info.status); 336 fc = rx_mgmt_frame->frame_control; 337 338 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n", 339 data->info.channel, data->info.mcs, data->info.snr, 340 data->info.sqi); 341 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 342 le16_to_cpu(fc)); 343 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 344 data->info.qid, data->info.mid, data->info.cid); 345 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, 346 d_len, true); 347 348 if (!channel) { 349 wil_err(wil, "Frame on unsupported channel\n"); 350 return; 351 } 352 353 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 354 struct cfg80211_bss *bss; 355 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 356 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 357 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 358 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 359 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 360 u.beacon.variable); 361 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 362 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 363 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 364 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 365 ie_len, true); 366 367 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 368 d_len, signal, GFP_KERNEL); 369 if (bss) { 370 wil_dbg_wmi(wil, "Added BSS %pM\n", 371 rx_mgmt_frame->bssid); 372 cfg80211_put_bss(wiphy, bss); 373 } else { 374 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 375 } 376 } else { 377 cfg80211_rx_mgmt(wil->wdev, freq, signal, 378 (void *)rx_mgmt_frame, d_len, 0); 379 } 380 } 381 382 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 383 { 384 struct wmi_tx_mgmt_packet_event *data = d; 385 struct ieee80211_mgmt *mgmt_frame = 386 (struct ieee80211_mgmt *)data->payload; 387 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload); 388 389 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame, 390 flen, true); 391 } 392 393 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 394 void *d, int len) 395 { 396 if (wil->scan_request) { 397 struct wmi_scan_complete_event *data = d; 398 bool aborted = (data->status != WMI_SCAN_SUCCESS); 399 400 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 401 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 402 wil->scan_request, aborted); 403 404 del_timer_sync(&wil->scan_timer); 405 cfg80211_scan_done(wil->scan_request, aborted); 406 wil->scan_request = NULL; 407 } else { 408 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 409 } 410 } 411 412 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 413 { 414 struct net_device *ndev = wil_to_ndev(wil); 415 struct wireless_dev *wdev = wil->wdev; 416 struct wmi_connect_event *evt = d; 417 int ch; /* channel number */ 418 struct station_info sinfo; 419 u8 *assoc_req_ie, *assoc_resp_ie; 420 size_t assoc_req_ielen, assoc_resp_ielen; 421 /* capinfo(u16) + listen_interval(u16) + IEs */ 422 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 423 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 424 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 425 426 if (len < sizeof(*evt)) { 427 wil_err(wil, "Connect event too short : %d bytes\n", len); 428 return; 429 } 430 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 431 evt->assoc_resp_len) { 432 wil_err(wil, 433 "Connect event corrupted : %d != %d + %d + %d + %d\n", 434 len, (int)sizeof(*evt), evt->beacon_ie_len, 435 evt->assoc_req_len, evt->assoc_resp_len); 436 return; 437 } 438 if (evt->cid >= WIL6210_MAX_CID) { 439 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 440 return; 441 } 442 443 ch = evt->channel + 1; 444 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n", 445 evt->bssid, ch, evt->cid); 446 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 447 evt->assoc_info, len - sizeof(*evt), true); 448 449 /* figure out IE's */ 450 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 451 assoc_req_ie_offset]; 452 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 453 if (evt->assoc_req_len <= assoc_req_ie_offset) { 454 assoc_req_ie = NULL; 455 assoc_req_ielen = 0; 456 } 457 458 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 459 evt->assoc_req_len + 460 assoc_resp_ie_offset]; 461 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 462 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 463 assoc_resp_ie = NULL; 464 assoc_resp_ielen = 0; 465 } 466 467 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 468 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 469 if (!test_bit(wil_status_fwconnecting, wil->status)) { 470 wil_err(wil, "Not in connecting state\n"); 471 return; 472 } 473 del_timer_sync(&wil->connect_timer); 474 cfg80211_connect_result(ndev, evt->bssid, 475 assoc_req_ie, assoc_req_ielen, 476 assoc_resp_ie, assoc_resp_ielen, 477 WLAN_STATUS_SUCCESS, GFP_KERNEL); 478 479 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 480 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 481 memset(&sinfo, 0, sizeof(sinfo)); 482 483 sinfo.generation = wil->sinfo_gen++; 484 485 if (assoc_req_ie) { 486 sinfo.assoc_req_ies = assoc_req_ie; 487 sinfo.assoc_req_ies_len = assoc_req_ielen; 488 } 489 490 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 491 } 492 clear_bit(wil_status_fwconnecting, wil->status); 493 set_bit(wil_status_fwconnected, wil->status); 494 495 /* FIXME FW can transmit only ucast frames to peer */ 496 /* FIXME real ring_id instead of hard coded 0 */ 497 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 498 wil->sta[evt->cid].status = wil_sta_conn_pending; 499 500 wil->pending_connect_cid = evt->cid; 501 queue_work(wil->wq_service, &wil->connect_worker); 502 } 503 504 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 505 void *d, int len) 506 { 507 struct wmi_disconnect_event *evt = d; 508 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 509 510 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 511 evt->bssid, reason_code, evt->disconnect_reason); 512 513 wil->sinfo_gen++; 514 515 mutex_lock(&wil->mutex); 516 wil6210_disconnect(wil, evt->bssid, reason_code, true); 517 mutex_unlock(&wil->mutex); 518 } 519 520 /* 521 * Firmware reports EAPOL frame using WME event. 522 * Reconstruct Ethernet frame and deliver it via normal Rx 523 */ 524 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 525 void *d, int len) 526 { 527 struct net_device *ndev = wil_to_ndev(wil); 528 struct wmi_eapol_rx_event *evt = d; 529 u16 eapol_len = le16_to_cpu(evt->eapol_len); 530 int sz = eapol_len + ETH_HLEN; 531 struct sk_buff *skb; 532 struct ethhdr *eth; 533 int cid; 534 struct wil_net_stats *stats = NULL; 535 536 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 537 evt->src_mac); 538 539 cid = wil_find_cid(wil, evt->src_mac); 540 if (cid >= 0) 541 stats = &wil->sta[cid].stats; 542 543 if (eapol_len > 196) { /* TODO: revisit size limit */ 544 wil_err(wil, "EAPOL too large\n"); 545 return; 546 } 547 548 skb = alloc_skb(sz, GFP_KERNEL); 549 if (!skb) { 550 wil_err(wil, "Failed to allocate skb\n"); 551 return; 552 } 553 554 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 555 ether_addr_copy(eth->h_dest, ndev->dev_addr); 556 ether_addr_copy(eth->h_source, evt->src_mac); 557 eth->h_proto = cpu_to_be16(ETH_P_PAE); 558 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 559 skb->protocol = eth_type_trans(skb, ndev); 560 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 561 ndev->stats.rx_packets++; 562 ndev->stats.rx_bytes += sz; 563 if (stats) { 564 stats->rx_packets++; 565 stats->rx_bytes += sz; 566 } 567 } else { 568 ndev->stats.rx_dropped++; 569 if (stats) 570 stats->rx_dropped++; 571 } 572 } 573 574 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 575 { 576 struct wmi_vring_en_event *evt = d; 577 u8 vri = evt->vring_index; 578 579 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 580 581 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 582 wil_err(wil, "Enable for invalid vring %d\n", vri); 583 return; 584 } 585 wil->vring_tx_data[vri].dot1x_open = true; 586 if (vri == wil->bcast_vring) /* no BA for bcast */ 587 return; 588 if (agg_wsize >= 0) 589 wil_addba_tx_request(wil, vri, agg_wsize); 590 } 591 592 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 593 int len) 594 { 595 struct wmi_vring_ba_status_event *evt = d; 596 struct vring_tx_data *txdata; 597 598 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 599 evt->ringid, 600 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 601 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 602 evt->amsdu ? "+" : "-"); 603 604 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 605 wil_err(wil, "invalid ring id %d\n", evt->ringid); 606 return; 607 } 608 609 if (evt->status != WMI_BA_AGREED) { 610 evt->ba_timeout = 0; 611 evt->agg_wsize = 0; 612 evt->amsdu = 0; 613 } 614 615 txdata = &wil->vring_tx_data[evt->ringid]; 616 617 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 618 txdata->agg_wsize = evt->agg_wsize; 619 txdata->agg_amsdu = evt->amsdu; 620 txdata->addba_in_progress = false; 621 } 622 623 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 624 int len) 625 { 626 struct wmi_rcp_addba_req_event *evt = d; 627 628 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 629 evt->ba_param_set, evt->ba_timeout, 630 evt->ba_seq_ctrl); 631 } 632 633 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 634 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 635 { 636 struct wmi_delba_event *evt = d; 637 u8 cid, tid; 638 u16 reason = __le16_to_cpu(evt->reason); 639 struct wil_sta_info *sta; 640 struct wil_tid_ampdu_rx *r; 641 642 might_sleep(); 643 parse_cidxtid(evt->cidxtid, &cid, &tid); 644 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 645 cid, tid, 646 evt->from_initiator ? "originator" : "recipient", 647 reason); 648 if (!evt->from_initiator) { 649 int i; 650 /* find Tx vring it belongs to */ 651 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 652 if ((wil->vring2cid_tid[i][0] == cid) && 653 (wil->vring2cid_tid[i][1] == tid)) { 654 struct vring_tx_data *txdata = 655 &wil->vring_tx_data[i]; 656 657 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 658 txdata->agg_timeout = 0; 659 txdata->agg_wsize = 0; 660 txdata->addba_in_progress = false; 661 662 break; /* max. 1 matching ring */ 663 } 664 } 665 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 666 wil_err(wil, "DELBA: unable to find Tx vring\n"); 667 return; 668 } 669 670 sta = &wil->sta[cid]; 671 672 spin_lock_bh(&sta->tid_rx_lock); 673 674 r = sta->tid_rx[tid]; 675 sta->tid_rx[tid] = NULL; 676 wil_tid_ampdu_rx_free(wil, r); 677 678 spin_unlock_bh(&sta->tid_rx_lock); 679 } 680 681 /** 682 * Some events are ignored for purpose; and need not be interpreted as 683 * "unhandled events" 684 */ 685 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 686 { 687 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 688 } 689 690 static const struct { 691 int eventid; 692 void (*handler)(struct wil6210_priv *wil, int eventid, 693 void *data, int data_len); 694 } wmi_evt_handlers[] = { 695 {WMI_READY_EVENTID, wmi_evt_ready}, 696 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 697 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 698 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 699 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 700 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 701 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 702 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 703 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 704 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 705 {WMI_DELBA_EVENTID, wmi_evt_delba}, 706 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 707 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 708 }; 709 710 /* 711 * Run in IRQ context 712 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 713 * that will be eventually handled by the @wmi_event_worker in the thread 714 * context of thread "wil6210_wmi" 715 */ 716 void wmi_recv_cmd(struct wil6210_priv *wil) 717 { 718 struct wil6210_mbox_ring_desc d_tail; 719 struct wil6210_mbox_hdr hdr; 720 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 721 struct pending_wmi_event *evt; 722 u8 *cmd; 723 void __iomem *src; 724 ulong flags; 725 unsigned n; 726 727 if (!test_bit(wil_status_mbox_ready, wil->status)) { 728 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 729 return; 730 } 731 732 for (n = 0;; n++) { 733 u16 len; 734 bool q; 735 736 r->head = wil_r(wil, RGF_MBOX + 737 offsetof(struct wil6210_mbox_ctl, rx.head)); 738 if (r->tail == r->head) 739 break; 740 741 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 742 r->head, r->tail); 743 /* read cmd descriptor from tail */ 744 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 745 sizeof(struct wil6210_mbox_ring_desc)); 746 if (d_tail.sync == 0) { 747 wil_err(wil, "Mbox evt not owned by FW?\n"); 748 break; 749 } 750 751 /* read cmd header from descriptor */ 752 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 753 wil_err(wil, "Mbox evt at 0x%08x?\n", 754 le32_to_cpu(d_tail.addr)); 755 break; 756 } 757 len = le16_to_cpu(hdr.len); 758 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 759 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 760 hdr.flags); 761 762 /* read cmd buffer from descriptor */ 763 src = wmi_buffer(wil, d_tail.addr) + 764 sizeof(struct wil6210_mbox_hdr); 765 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 766 event.wmi) + len, 4), 767 GFP_KERNEL); 768 if (!evt) 769 break; 770 771 evt->event.hdr = hdr; 772 cmd = (void *)&evt->event.wmi; 773 wil_memcpy_fromio_32(cmd, src, len); 774 /* mark entry as empty */ 775 wil_w(wil, r->tail + 776 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 777 /* indicate */ 778 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 779 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 780 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi; 781 u16 id = le16_to_cpu(wmi->id); 782 u32 tstamp = le32_to_cpu(wmi->timestamp); 783 784 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 785 id, wmi->mid, tstamp); 786 trace_wil6210_wmi_event(wmi, &wmi[1], 787 len - sizeof(*wmi)); 788 } 789 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 790 &evt->event.hdr, sizeof(hdr) + len, true); 791 792 /* advance tail */ 793 r->tail = r->base + ((r->tail - r->base + 794 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 795 wil_w(wil, RGF_MBOX + 796 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 797 798 /* add to the pending list */ 799 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 800 list_add_tail(&evt->list, &wil->pending_wmi_ev); 801 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 802 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 803 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 804 } 805 /* normally, 1 event per IRQ should be processed */ 806 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n); 807 } 808 809 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 810 u16 reply_id, void *reply, u8 reply_size, int to_msec) 811 { 812 int rc; 813 unsigned long remain; 814 815 mutex_lock(&wil->wmi_mutex); 816 817 rc = __wmi_send(wil, cmdid, buf, len); 818 if (rc) 819 goto out; 820 821 wil->reply_id = reply_id; 822 wil->reply_buf = reply; 823 wil->reply_size = reply_size; 824 remain = wait_for_completion_timeout(&wil->wmi_call, 825 msecs_to_jiffies(to_msec)); 826 if (0 == remain) { 827 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 828 cmdid, reply_id, to_msec); 829 rc = -ETIME; 830 } else { 831 wil_dbg_wmi(wil, 832 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 833 cmdid, reply_id, 834 to_msec - jiffies_to_msecs(remain)); 835 } 836 wil->reply_id = 0; 837 wil->reply_buf = NULL; 838 wil->reply_size = 0; 839 out: 840 mutex_unlock(&wil->wmi_mutex); 841 842 return rc; 843 } 844 845 int wmi_echo(struct wil6210_priv *wil) 846 { 847 struct wmi_echo_cmd cmd = { 848 .value = cpu_to_le32(0x12345678), 849 }; 850 851 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 852 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 853 } 854 855 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 856 { 857 struct wmi_set_mac_address_cmd cmd; 858 859 ether_addr_copy(cmd.mac, addr); 860 861 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 862 863 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 864 } 865 866 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 867 u8 chan, u8 hidden_ssid) 868 { 869 int rc; 870 871 struct wmi_pcp_start_cmd cmd = { 872 .bcon_interval = cpu_to_le16(bi), 873 .network_type = wmi_nettype, 874 .disable_sec_offload = 1, 875 .channel = chan - 1, 876 .pcp_max_assoc_sta = max_assoc_sta, 877 .hidden_ssid = hidden_ssid, 878 }; 879 struct { 880 struct wil6210_mbox_hdr_wmi wmi; 881 struct wmi_pcp_started_event evt; 882 } __packed reply; 883 884 if (!wil->privacy) 885 cmd.disable_sec = 1; 886 887 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 888 (cmd.pcp_max_assoc_sta <= 0)) { 889 wil_info(wil, 890 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 891 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 892 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 893 } 894 895 /* 896 * Processing time may be huge, in case of secure AP it takes about 897 * 3500ms for FW to start AP 898 */ 899 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 900 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 901 if (rc) 902 return rc; 903 904 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 905 rc = -EINVAL; 906 907 return rc; 908 } 909 910 int wmi_pcp_stop(struct wil6210_priv *wil) 911 { 912 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 913 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 914 } 915 916 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 917 { 918 struct wmi_set_ssid_cmd cmd = { 919 .ssid_len = cpu_to_le32(ssid_len), 920 }; 921 922 if (ssid_len > sizeof(cmd.ssid)) 923 return -EINVAL; 924 925 memcpy(cmd.ssid, ssid, ssid_len); 926 927 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 928 } 929 930 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 931 { 932 int rc; 933 struct { 934 struct wil6210_mbox_hdr_wmi wmi; 935 struct wmi_set_ssid_cmd cmd; 936 } __packed reply; 937 int len; /* reply.cmd.ssid_len in CPU order */ 938 939 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 940 &reply, sizeof(reply), 20); 941 if (rc) 942 return rc; 943 944 len = le32_to_cpu(reply.cmd.ssid_len); 945 if (len > sizeof(reply.cmd.ssid)) 946 return -EINVAL; 947 948 *ssid_len = len; 949 memcpy(ssid, reply.cmd.ssid, len); 950 951 return 0; 952 } 953 954 int wmi_set_channel(struct wil6210_priv *wil, int channel) 955 { 956 struct wmi_set_pcp_channel_cmd cmd = { 957 .channel = channel - 1, 958 }; 959 960 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 961 } 962 963 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 964 { 965 int rc; 966 struct { 967 struct wil6210_mbox_hdr_wmi wmi; 968 struct wmi_set_pcp_channel_cmd cmd; 969 } __packed reply; 970 971 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 972 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 973 if (rc) 974 return rc; 975 976 if (reply.cmd.channel > 3) 977 return -EINVAL; 978 979 *channel = reply.cmd.channel + 1; 980 981 return 0; 982 } 983 984 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel) 985 { 986 struct wmi_p2p_cfg_cmd cmd = { 987 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD, 988 .channel = channel - 1, 989 }; 990 991 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd)); 992 } 993 994 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 995 const void *mac_addr, int key_usage) 996 { 997 struct wmi_delete_cipher_key_cmd cmd = { 998 .key_index = key_index, 999 }; 1000 1001 if (mac_addr) 1002 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1003 1004 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1005 } 1006 1007 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1008 const void *mac_addr, int key_len, const void *key, 1009 int key_usage) 1010 { 1011 struct wmi_add_cipher_key_cmd cmd = { 1012 .key_index = key_index, 1013 .key_usage = key_usage, 1014 .key_len = key_len, 1015 }; 1016 1017 if (!key || (key_len > sizeof(cmd.key))) 1018 return -EINVAL; 1019 1020 memcpy(cmd.key, key, key_len); 1021 if (mac_addr) 1022 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1023 1024 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1025 } 1026 1027 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1028 { 1029 static const char *const names[] = { 1030 [WMI_FRAME_BEACON] = "BEACON", 1031 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1032 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1033 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1034 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1035 }; 1036 int rc; 1037 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1038 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1039 1040 if (!cmd) { 1041 rc = -ENOMEM; 1042 goto out; 1043 } 1044 if (!ie) 1045 ie_len = 0; 1046 1047 cmd->mgmt_frm_type = type; 1048 /* BUG: FW API define ieLen as u8. Will fix FW */ 1049 cmd->ie_len = cpu_to_le16(ie_len); 1050 memcpy(cmd->ie_info, ie, ie_len); 1051 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1052 kfree(cmd); 1053 out: 1054 if (rc) { 1055 const char *name = type < ARRAY_SIZE(names) ? 1056 names[type] : "??"; 1057 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1058 } 1059 1060 return rc; 1061 } 1062 1063 /** 1064 * wmi_rxon - turn radio on/off 1065 * @on: turn on if true, off otherwise 1066 * 1067 * Only switch radio. Channel should be set separately. 1068 * No timeout for rxon - radio turned on forever unless some other call 1069 * turns it off 1070 */ 1071 int wmi_rxon(struct wil6210_priv *wil, bool on) 1072 { 1073 int rc; 1074 struct { 1075 struct wil6210_mbox_hdr_wmi wmi; 1076 struct wmi_listen_started_event evt; 1077 } __packed reply; 1078 1079 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1080 1081 if (on) { 1082 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1083 WMI_LISTEN_STARTED_EVENTID, 1084 &reply, sizeof(reply), 100); 1085 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1086 rc = -EINVAL; 1087 } else { 1088 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1089 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1090 } 1091 1092 return rc; 1093 } 1094 1095 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1096 { 1097 struct wireless_dev *wdev = wil->wdev; 1098 struct net_device *ndev = wil_to_ndev(wil); 1099 struct wmi_cfg_rx_chain_cmd cmd = { 1100 .action = WMI_RX_CHAIN_ADD, 1101 .rx_sw_ring = { 1102 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1103 .ring_mem_base = cpu_to_le64(vring->pa), 1104 .ring_size = cpu_to_le16(vring->size), 1105 }, 1106 .mid = 0, /* TODO - what is it? */ 1107 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1108 .reorder_type = WMI_RX_SW_REORDER, 1109 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1110 }; 1111 struct { 1112 struct wil6210_mbox_hdr_wmi wmi; 1113 struct wmi_cfg_rx_chain_done_event evt; 1114 } __packed evt; 1115 int rc; 1116 1117 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1118 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1119 1120 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1121 if (ch) 1122 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1123 cmd.sniffer_cfg.phy_info_mode = 1124 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1125 cmd.sniffer_cfg.phy_support = 1126 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1127 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1128 } else { 1129 /* Initialize offload (in non-sniffer mode). 1130 * Linux IP stack always calculates IP checksum 1131 * HW always calculate TCP/UDP checksum 1132 */ 1133 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1134 } 1135 1136 if (rx_align_2) 1137 cmd.l2_802_3_offload_ctrl |= 1138 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1139 1140 /* typical time for secure PCP is 840ms */ 1141 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1142 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1143 if (rc) 1144 return rc; 1145 1146 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1147 1148 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1149 le32_to_cpu(evt.evt.status), vring->hwtail); 1150 1151 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1152 rc = -EINVAL; 1153 1154 return rc; 1155 } 1156 1157 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1158 { 1159 int rc; 1160 struct wmi_temp_sense_cmd cmd = { 1161 .measure_baseband_en = cpu_to_le32(!!t_bb), 1162 .measure_rf_en = cpu_to_le32(!!t_rf), 1163 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1164 }; 1165 struct { 1166 struct wil6210_mbox_hdr_wmi wmi; 1167 struct wmi_temp_sense_done_event evt; 1168 } __packed reply; 1169 1170 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1171 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1172 if (rc) 1173 return rc; 1174 1175 if (t_bb) 1176 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1177 if (t_rf) 1178 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1179 1180 return 0; 1181 } 1182 1183 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason) 1184 { 1185 int rc; 1186 u16 reason_code; 1187 struct wmi_disconnect_sta_cmd cmd = { 1188 .disconnect_reason = cpu_to_le16(reason), 1189 }; 1190 struct { 1191 struct wil6210_mbox_hdr_wmi wmi; 1192 struct wmi_disconnect_event evt; 1193 } __packed reply; 1194 1195 ether_addr_copy(cmd.dst_mac, mac); 1196 1197 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1198 1199 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), 1200 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); 1201 /* failure to disconnect in reasonable time treated as FW error */ 1202 if (rc) { 1203 wil_fw_error_recovery(wil); 1204 return rc; 1205 } 1206 1207 /* call event handler manually after processing wmi_call, 1208 * to avoid deadlock - disconnect event handler acquires wil->mutex 1209 * while it is already held here 1210 */ 1211 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1212 1213 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1214 reply.evt.bssid, reason_code, 1215 reply.evt.disconnect_reason); 1216 1217 wil->sinfo_gen++; 1218 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1219 1220 return 0; 1221 } 1222 1223 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1224 { 1225 struct wmi_vring_ba_en_cmd cmd = { 1226 .ringid = ringid, 1227 .agg_max_wsize = size, 1228 .ba_timeout = cpu_to_le16(timeout), 1229 .amsdu = 0, 1230 }; 1231 1232 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1233 ringid, size, timeout); 1234 1235 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1236 } 1237 1238 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1239 { 1240 struct wmi_vring_ba_dis_cmd cmd = { 1241 .ringid = ringid, 1242 .reason = cpu_to_le16(reason), 1243 }; 1244 1245 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1246 ringid, reason); 1247 1248 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1249 } 1250 1251 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1252 { 1253 struct wmi_rcp_delba_cmd cmd = { 1254 .cidxtid = cidxtid, 1255 .reason = cpu_to_le16(reason), 1256 }; 1257 1258 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1259 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1260 1261 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1262 } 1263 1264 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1265 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1266 { 1267 int rc; 1268 struct wmi_rcp_addba_resp_cmd cmd = { 1269 .cidxtid = mk_cidxtid(cid, tid), 1270 .dialog_token = token, 1271 .status_code = cpu_to_le16(status), 1272 /* bit 0: A-MSDU supported 1273 * bit 1: policy (should be 0 for us) 1274 * bits 2..5: TID 1275 * bits 6..15: buffer size 1276 */ 1277 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1278 (agg_wsize << 6)), 1279 .ba_timeout = cpu_to_le16(timeout), 1280 }; 1281 struct { 1282 struct wil6210_mbox_hdr_wmi wmi; 1283 struct wmi_rcp_addba_resp_sent_event evt; 1284 } __packed reply; 1285 1286 wil_dbg_wmi(wil, 1287 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1288 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1289 1290 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1291 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1292 100); 1293 if (rc) 1294 return rc; 1295 1296 if (reply.evt.status) { 1297 wil_err(wil, "ADDBA response failed with status %d\n", 1298 le16_to_cpu(reply.evt.status)); 1299 rc = -EINVAL; 1300 } 1301 1302 return rc; 1303 } 1304 1305 void wmi_event_flush(struct wil6210_priv *wil) 1306 { 1307 struct pending_wmi_event *evt, *t; 1308 1309 wil_dbg_wmi(wil, "%s()\n", __func__); 1310 1311 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1312 list_del(&evt->list); 1313 kfree(evt); 1314 } 1315 } 1316 1317 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1318 void *d, int len) 1319 { 1320 uint i; 1321 1322 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1323 if (wmi_evt_handlers[i].eventid == id) { 1324 wmi_evt_handlers[i].handler(wil, id, d, len); 1325 return true; 1326 } 1327 } 1328 1329 return false; 1330 } 1331 1332 static void wmi_event_handle(struct wil6210_priv *wil, 1333 struct wil6210_mbox_hdr *hdr) 1334 { 1335 u16 len = le16_to_cpu(hdr->len); 1336 1337 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1338 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 1339 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); 1340 void *evt_data = (void *)(&wmi[1]); 1341 u16 id = le16_to_cpu(wmi->id); 1342 1343 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1344 id, wil->reply_id); 1345 /* check if someone waits for this event */ 1346 if (wil->reply_id && wil->reply_id == id) { 1347 if (wil->reply_buf) { 1348 memcpy(wil->reply_buf, wmi, 1349 min(len, wil->reply_size)); 1350 } else { 1351 wmi_evt_call_handler(wil, id, evt_data, 1352 len - sizeof(*wmi)); 1353 } 1354 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id); 1355 complete(&wil->wmi_call); 1356 return; 1357 } 1358 /* unsolicited event */ 1359 /* search for handler */ 1360 if (!wmi_evt_call_handler(wil, id, evt_data, 1361 len - sizeof(*wmi))) { 1362 wil_info(wil, "Unhandled event 0x%04x\n", id); 1363 } 1364 } else { 1365 wil_err(wil, "Unknown event type\n"); 1366 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1367 hdr, sizeof(*hdr) + len, true); 1368 } 1369 } 1370 1371 /* 1372 * Retrieve next WMI event from the pending list 1373 */ 1374 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1375 { 1376 ulong flags; 1377 struct list_head *ret = NULL; 1378 1379 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1380 1381 if (!list_empty(&wil->pending_wmi_ev)) { 1382 ret = wil->pending_wmi_ev.next; 1383 list_del(ret); 1384 } 1385 1386 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1387 1388 return ret; 1389 } 1390 1391 /* 1392 * Handler for the WMI events 1393 */ 1394 void wmi_event_worker(struct work_struct *work) 1395 { 1396 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1397 wmi_event_worker); 1398 struct pending_wmi_event *evt; 1399 struct list_head *lh; 1400 1401 wil_dbg_wmi(wil, "Start %s\n", __func__); 1402 while ((lh = next_wmi_ev(wil)) != NULL) { 1403 evt = list_entry(lh, struct pending_wmi_event, list); 1404 wmi_event_handle(wil, &evt->event.hdr); 1405 kfree(evt); 1406 } 1407 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1408 } 1409