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 if (!test_bit(wil_status_fwready, wil->status)) { 232 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 233 return -EAGAIN; 234 } 235 r->tail = wil_r(wil, RGF_MBOX + 236 offsetof(struct wil6210_mbox_ctl, tx.tail)); 237 if (next_head != r->tail) 238 break; 239 msleep(20); 240 } 241 if (next_head == r->tail) { 242 wil_err(wil, "WMI ring full\n"); 243 return -EBUSY; 244 } 245 dst = wmi_buffer(wil, d_head.addr); 246 if (!dst) { 247 wil_err(wil, "invalid WMI buffer: 0x%08x\n", 248 le32_to_cpu(d_head.addr)); 249 return -EINVAL; 250 } 251 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); 252 /* set command */ 253 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len); 254 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, 255 sizeof(cmd), true); 256 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, 257 len, true); 258 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); 259 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); 260 /* mark entry as full */ 261 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1); 262 /* advance next ptr */ 263 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head), 264 r->head = next_head); 265 266 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 267 268 /* interrupt to FW */ 269 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS), 270 SW_INT_MBOX); 271 272 return 0; 273 } 274 275 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 276 { 277 int rc; 278 279 mutex_lock(&wil->wmi_mutex); 280 rc = __wmi_send(wil, cmdid, buf, len); 281 mutex_unlock(&wil->wmi_mutex); 282 283 return rc; 284 } 285 286 /*=== Event handlers ===*/ 287 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 288 { 289 struct wireless_dev *wdev = wil->wdev; 290 struct wmi_ready_event *evt = d; 291 292 wil->fw_version = le32_to_cpu(evt->sw_version); 293 wil->n_mids = evt->numof_additional_mids; 294 295 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version, 296 evt->mac, wil->n_mids); 297 /* ignore MAC address, we already have it from the boot loader */ 298 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), 299 "%d", wil->fw_version); 300 301 wil_set_recovery_state(wil, fw_recovery_idle); 302 set_bit(wil_status_fwready, wil->status); 303 /* let the reset sequence continue */ 304 complete(&wil->wmi_ready); 305 } 306 307 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 308 { 309 struct wmi_rx_mgmt_packet_event *data = d; 310 struct wiphy *wiphy = wil_to_wiphy(wil); 311 struct ieee80211_mgmt *rx_mgmt_frame = 312 (struct ieee80211_mgmt *)data->payload; 313 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload); 314 int ch_no; 315 u32 freq; 316 struct ieee80211_channel *channel; 317 s32 signal; 318 __le16 fc; 319 u32 d_len; 320 u16 d_status; 321 322 if (flen < 0) { 323 wil_err(wil, "MGMT Rx: short event, len %d\n", len); 324 return; 325 } 326 327 d_len = le32_to_cpu(data->info.len); 328 if (d_len != flen) { 329 wil_err(wil, 330 "MGMT Rx: length mismatch, d_len %d should be %d\n", 331 d_len, flen); 332 return; 333 } 334 335 ch_no = data->info.channel + 1; 336 freq = ieee80211_channel_to_frequency(ch_no, IEEE80211_BAND_60GHZ); 337 channel = ieee80211_get_channel(wiphy, freq); 338 signal = data->info.sqi; 339 d_status = le16_to_cpu(data->info.status); 340 fc = rx_mgmt_frame->frame_control; 341 342 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n", 343 data->info.channel, data->info.mcs, data->info.snr, 344 data->info.sqi); 345 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 346 le16_to_cpu(fc)); 347 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 348 data->info.qid, data->info.mid, data->info.cid); 349 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, 350 d_len, true); 351 352 if (!channel) { 353 wil_err(wil, "Frame on unsupported channel\n"); 354 return; 355 } 356 357 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 358 struct cfg80211_bss *bss; 359 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 360 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 361 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 362 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 363 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 364 u.beacon.variable); 365 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 366 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 367 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 368 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 369 ie_len, true); 370 371 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 372 d_len, signal, GFP_KERNEL); 373 if (bss) { 374 wil_dbg_wmi(wil, "Added BSS %pM\n", 375 rx_mgmt_frame->bssid); 376 cfg80211_put_bss(wiphy, bss); 377 } else { 378 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 379 } 380 } else { 381 cfg80211_rx_mgmt(wil->wdev, freq, signal, 382 (void *)rx_mgmt_frame, d_len, 0); 383 } 384 } 385 386 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 387 { 388 struct wmi_tx_mgmt_packet_event *data = d; 389 struct ieee80211_mgmt *mgmt_frame = 390 (struct ieee80211_mgmt *)data->payload; 391 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload); 392 393 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame, 394 flen, true); 395 } 396 397 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 398 void *d, int len) 399 { 400 if (wil->scan_request) { 401 struct wmi_scan_complete_event *data = d; 402 bool aborted = (data->status != WMI_SCAN_SUCCESS); 403 404 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 405 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 406 wil->scan_request, aborted); 407 408 del_timer_sync(&wil->scan_timer); 409 cfg80211_scan_done(wil->scan_request, aborted); 410 wil->scan_request = NULL; 411 } else { 412 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 413 } 414 } 415 416 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 417 { 418 struct net_device *ndev = wil_to_ndev(wil); 419 struct wireless_dev *wdev = wil->wdev; 420 struct wmi_connect_event *evt = d; 421 int ch; /* channel number */ 422 struct station_info sinfo; 423 u8 *assoc_req_ie, *assoc_resp_ie; 424 size_t assoc_req_ielen, assoc_resp_ielen; 425 /* capinfo(u16) + listen_interval(u16) + IEs */ 426 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 427 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 428 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 429 430 if (len < sizeof(*evt)) { 431 wil_err(wil, "Connect event too short : %d bytes\n", len); 432 return; 433 } 434 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 435 evt->assoc_resp_len) { 436 wil_err(wil, 437 "Connect event corrupted : %d != %d + %d + %d + %d\n", 438 len, (int)sizeof(*evt), evt->beacon_ie_len, 439 evt->assoc_req_len, evt->assoc_resp_len); 440 return; 441 } 442 if (evt->cid >= WIL6210_MAX_CID) { 443 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 444 return; 445 } 446 447 ch = evt->channel + 1; 448 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n", 449 evt->bssid, ch, evt->cid); 450 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 451 evt->assoc_info, len - sizeof(*evt), true); 452 453 /* figure out IE's */ 454 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 455 assoc_req_ie_offset]; 456 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 457 if (evt->assoc_req_len <= assoc_req_ie_offset) { 458 assoc_req_ie = NULL; 459 assoc_req_ielen = 0; 460 } 461 462 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 463 evt->assoc_req_len + 464 assoc_resp_ie_offset]; 465 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 466 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 467 assoc_resp_ie = NULL; 468 assoc_resp_ielen = 0; 469 } 470 471 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 472 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 473 if (!test_bit(wil_status_fwconnecting, wil->status)) { 474 wil_err(wil, "Not in connecting state\n"); 475 return; 476 } 477 del_timer_sync(&wil->connect_timer); 478 cfg80211_connect_result(ndev, evt->bssid, 479 assoc_req_ie, assoc_req_ielen, 480 assoc_resp_ie, assoc_resp_ielen, 481 WLAN_STATUS_SUCCESS, GFP_KERNEL); 482 483 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 484 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 485 memset(&sinfo, 0, sizeof(sinfo)); 486 487 sinfo.generation = wil->sinfo_gen++; 488 489 if (assoc_req_ie) { 490 sinfo.assoc_req_ies = assoc_req_ie; 491 sinfo.assoc_req_ies_len = assoc_req_ielen; 492 } 493 494 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 495 } 496 clear_bit(wil_status_fwconnecting, wil->status); 497 set_bit(wil_status_fwconnected, wil->status); 498 499 /* FIXME FW can transmit only ucast frames to peer */ 500 /* FIXME real ring_id instead of hard coded 0 */ 501 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 502 wil->sta[evt->cid].status = wil_sta_conn_pending; 503 504 wil->pending_connect_cid = evt->cid; 505 queue_work(wil->wq_service, &wil->connect_worker); 506 } 507 508 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 509 void *d, int len) 510 { 511 struct wmi_disconnect_event *evt = d; 512 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 513 514 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 515 evt->bssid, reason_code, evt->disconnect_reason); 516 517 wil->sinfo_gen++; 518 519 mutex_lock(&wil->mutex); 520 wil6210_disconnect(wil, evt->bssid, reason_code, true); 521 mutex_unlock(&wil->mutex); 522 } 523 524 /* 525 * Firmware reports EAPOL frame using WME event. 526 * Reconstruct Ethernet frame and deliver it via normal Rx 527 */ 528 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 529 void *d, int len) 530 { 531 struct net_device *ndev = wil_to_ndev(wil); 532 struct wmi_eapol_rx_event *evt = d; 533 u16 eapol_len = le16_to_cpu(evt->eapol_len); 534 int sz = eapol_len + ETH_HLEN; 535 struct sk_buff *skb; 536 struct ethhdr *eth; 537 int cid; 538 struct wil_net_stats *stats = NULL; 539 540 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 541 evt->src_mac); 542 543 cid = wil_find_cid(wil, evt->src_mac); 544 if (cid >= 0) 545 stats = &wil->sta[cid].stats; 546 547 if (eapol_len > 196) { /* TODO: revisit size limit */ 548 wil_err(wil, "EAPOL too large\n"); 549 return; 550 } 551 552 skb = alloc_skb(sz, GFP_KERNEL); 553 if (!skb) { 554 wil_err(wil, "Failed to allocate skb\n"); 555 return; 556 } 557 558 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 559 ether_addr_copy(eth->h_dest, ndev->dev_addr); 560 ether_addr_copy(eth->h_source, evt->src_mac); 561 eth->h_proto = cpu_to_be16(ETH_P_PAE); 562 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 563 skb->protocol = eth_type_trans(skb, ndev); 564 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 565 ndev->stats.rx_packets++; 566 ndev->stats.rx_bytes += sz; 567 if (stats) { 568 stats->rx_packets++; 569 stats->rx_bytes += sz; 570 } 571 } else { 572 ndev->stats.rx_dropped++; 573 if (stats) 574 stats->rx_dropped++; 575 } 576 } 577 578 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 579 { 580 struct wmi_vring_en_event *evt = d; 581 u8 vri = evt->vring_index; 582 583 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 584 585 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 586 wil_err(wil, "Enable for invalid vring %d\n", vri); 587 return; 588 } 589 wil->vring_tx_data[vri].dot1x_open = true; 590 if (vri == wil->bcast_vring) /* no BA for bcast */ 591 return; 592 if (agg_wsize >= 0) 593 wil_addba_tx_request(wil, vri, agg_wsize); 594 } 595 596 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 597 int len) 598 { 599 struct wmi_vring_ba_status_event *evt = d; 600 struct vring_tx_data *txdata; 601 602 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 603 evt->ringid, 604 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 605 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 606 evt->amsdu ? "+" : "-"); 607 608 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 609 wil_err(wil, "invalid ring id %d\n", evt->ringid); 610 return; 611 } 612 613 if (evt->status != WMI_BA_AGREED) { 614 evt->ba_timeout = 0; 615 evt->agg_wsize = 0; 616 evt->amsdu = 0; 617 } 618 619 txdata = &wil->vring_tx_data[evt->ringid]; 620 621 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 622 txdata->agg_wsize = evt->agg_wsize; 623 txdata->agg_amsdu = evt->amsdu; 624 txdata->addba_in_progress = false; 625 } 626 627 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 628 int len) 629 { 630 struct wmi_rcp_addba_req_event *evt = d; 631 632 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 633 evt->ba_param_set, evt->ba_timeout, 634 evt->ba_seq_ctrl); 635 } 636 637 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 638 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 639 { 640 struct wmi_delba_event *evt = d; 641 u8 cid, tid; 642 u16 reason = __le16_to_cpu(evt->reason); 643 struct wil_sta_info *sta; 644 struct wil_tid_ampdu_rx *r; 645 646 might_sleep(); 647 parse_cidxtid(evt->cidxtid, &cid, &tid); 648 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 649 cid, tid, 650 evt->from_initiator ? "originator" : "recipient", 651 reason); 652 if (!evt->from_initiator) { 653 int i; 654 /* find Tx vring it belongs to */ 655 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 656 if ((wil->vring2cid_tid[i][0] == cid) && 657 (wil->vring2cid_tid[i][1] == tid)) { 658 struct vring_tx_data *txdata = 659 &wil->vring_tx_data[i]; 660 661 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 662 txdata->agg_timeout = 0; 663 txdata->agg_wsize = 0; 664 txdata->addba_in_progress = false; 665 666 break; /* max. 1 matching ring */ 667 } 668 } 669 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 670 wil_err(wil, "DELBA: unable to find Tx vring\n"); 671 return; 672 } 673 674 sta = &wil->sta[cid]; 675 676 spin_lock_bh(&sta->tid_rx_lock); 677 678 r = sta->tid_rx[tid]; 679 sta->tid_rx[tid] = NULL; 680 wil_tid_ampdu_rx_free(wil, r); 681 682 spin_unlock_bh(&sta->tid_rx_lock); 683 } 684 685 /** 686 * Some events are ignored for purpose; and need not be interpreted as 687 * "unhandled events" 688 */ 689 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 690 { 691 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 692 } 693 694 static const struct { 695 int eventid; 696 void (*handler)(struct wil6210_priv *wil, int eventid, 697 void *data, int data_len); 698 } wmi_evt_handlers[] = { 699 {WMI_READY_EVENTID, wmi_evt_ready}, 700 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 701 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 702 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 703 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 704 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 705 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 706 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 707 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 708 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 709 {WMI_DELBA_EVENTID, wmi_evt_delba}, 710 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 711 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 712 }; 713 714 /* 715 * Run in IRQ context 716 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 717 * that will be eventually handled by the @wmi_event_worker in the thread 718 * context of thread "wil6210_wmi" 719 */ 720 void wmi_recv_cmd(struct wil6210_priv *wil) 721 { 722 struct wil6210_mbox_ring_desc d_tail; 723 struct wil6210_mbox_hdr hdr; 724 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 725 struct pending_wmi_event *evt; 726 u8 *cmd; 727 void __iomem *src; 728 ulong flags; 729 unsigned n; 730 731 if (!test_bit(wil_status_mbox_ready, wil->status)) { 732 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 733 return; 734 } 735 736 for (n = 0;; n++) { 737 u16 len; 738 bool q; 739 740 r->head = wil_r(wil, RGF_MBOX + 741 offsetof(struct wil6210_mbox_ctl, rx.head)); 742 if (r->tail == r->head) 743 break; 744 745 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 746 r->head, r->tail); 747 /* read cmd descriptor from tail */ 748 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 749 sizeof(struct wil6210_mbox_ring_desc)); 750 if (d_tail.sync == 0) { 751 wil_err(wil, "Mbox evt not owned by FW?\n"); 752 break; 753 } 754 755 /* read cmd header from descriptor */ 756 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 757 wil_err(wil, "Mbox evt at 0x%08x?\n", 758 le32_to_cpu(d_tail.addr)); 759 break; 760 } 761 len = le16_to_cpu(hdr.len); 762 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 763 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 764 hdr.flags); 765 766 /* read cmd buffer from descriptor */ 767 src = wmi_buffer(wil, d_tail.addr) + 768 sizeof(struct wil6210_mbox_hdr); 769 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 770 event.wmi) + len, 4), 771 GFP_KERNEL); 772 if (!evt) 773 break; 774 775 evt->event.hdr = hdr; 776 cmd = (void *)&evt->event.wmi; 777 wil_memcpy_fromio_32(cmd, src, len); 778 /* mark entry as empty */ 779 wil_w(wil, r->tail + 780 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 781 /* indicate */ 782 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 783 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 784 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi; 785 u16 id = le16_to_cpu(wmi->id); 786 u32 tstamp = le32_to_cpu(wmi->timestamp); 787 788 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 789 id, wmi->mid, tstamp); 790 trace_wil6210_wmi_event(wmi, &wmi[1], 791 len - sizeof(*wmi)); 792 } 793 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 794 &evt->event.hdr, sizeof(hdr) + len, true); 795 796 /* advance tail */ 797 r->tail = r->base + ((r->tail - r->base + 798 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 799 wil_w(wil, RGF_MBOX + 800 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 801 802 /* add to the pending list */ 803 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 804 list_add_tail(&evt->list, &wil->pending_wmi_ev); 805 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 806 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 807 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 808 } 809 /* normally, 1 event per IRQ should be processed */ 810 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n); 811 } 812 813 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 814 u16 reply_id, void *reply, u8 reply_size, int to_msec) 815 { 816 int rc; 817 unsigned long remain; 818 819 mutex_lock(&wil->wmi_mutex); 820 821 rc = __wmi_send(wil, cmdid, buf, len); 822 if (rc) 823 goto out; 824 825 wil->reply_id = reply_id; 826 wil->reply_buf = reply; 827 wil->reply_size = reply_size; 828 remain = wait_for_completion_timeout(&wil->wmi_call, 829 msecs_to_jiffies(to_msec)); 830 if (0 == remain) { 831 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 832 cmdid, reply_id, to_msec); 833 rc = -ETIME; 834 } else { 835 wil_dbg_wmi(wil, 836 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 837 cmdid, reply_id, 838 to_msec - jiffies_to_msecs(remain)); 839 } 840 wil->reply_id = 0; 841 wil->reply_buf = NULL; 842 wil->reply_size = 0; 843 out: 844 mutex_unlock(&wil->wmi_mutex); 845 846 return rc; 847 } 848 849 int wmi_echo(struct wil6210_priv *wil) 850 { 851 struct wmi_echo_cmd cmd = { 852 .value = cpu_to_le32(0x12345678), 853 }; 854 855 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 856 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 857 } 858 859 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 860 { 861 struct wmi_set_mac_address_cmd cmd; 862 863 ether_addr_copy(cmd.mac, addr); 864 865 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 866 867 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 868 } 869 870 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 871 u8 chan, u8 hidden_ssid) 872 { 873 int rc; 874 875 struct wmi_pcp_start_cmd cmd = { 876 .bcon_interval = cpu_to_le16(bi), 877 .network_type = wmi_nettype, 878 .disable_sec_offload = 1, 879 .channel = chan - 1, 880 .pcp_max_assoc_sta = max_assoc_sta, 881 .hidden_ssid = hidden_ssid, 882 }; 883 struct { 884 struct wil6210_mbox_hdr_wmi wmi; 885 struct wmi_pcp_started_event evt; 886 } __packed reply; 887 888 if (!wil->privacy) 889 cmd.disable_sec = 1; 890 891 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 892 (cmd.pcp_max_assoc_sta <= 0)) { 893 wil_info(wil, 894 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 895 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 896 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 897 } 898 899 /* 900 * Processing time may be huge, in case of secure AP it takes about 901 * 3500ms for FW to start AP 902 */ 903 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 904 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 905 if (rc) 906 return rc; 907 908 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 909 rc = -EINVAL; 910 911 return rc; 912 } 913 914 int wmi_pcp_stop(struct wil6210_priv *wil) 915 { 916 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 917 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 918 } 919 920 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 921 { 922 struct wmi_set_ssid_cmd cmd = { 923 .ssid_len = cpu_to_le32(ssid_len), 924 }; 925 926 if (ssid_len > sizeof(cmd.ssid)) 927 return -EINVAL; 928 929 memcpy(cmd.ssid, ssid, ssid_len); 930 931 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 932 } 933 934 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 935 { 936 int rc; 937 struct { 938 struct wil6210_mbox_hdr_wmi wmi; 939 struct wmi_set_ssid_cmd cmd; 940 } __packed reply; 941 int len; /* reply.cmd.ssid_len in CPU order */ 942 943 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 944 &reply, sizeof(reply), 20); 945 if (rc) 946 return rc; 947 948 len = le32_to_cpu(reply.cmd.ssid_len); 949 if (len > sizeof(reply.cmd.ssid)) 950 return -EINVAL; 951 952 *ssid_len = len; 953 memcpy(ssid, reply.cmd.ssid, len); 954 955 return 0; 956 } 957 958 int wmi_set_channel(struct wil6210_priv *wil, int channel) 959 { 960 struct wmi_set_pcp_channel_cmd cmd = { 961 .channel = channel - 1, 962 }; 963 964 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 965 } 966 967 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 968 { 969 int rc; 970 struct { 971 struct wil6210_mbox_hdr_wmi wmi; 972 struct wmi_set_pcp_channel_cmd cmd; 973 } __packed reply; 974 975 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 976 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 977 if (rc) 978 return rc; 979 980 if (reply.cmd.channel > 3) 981 return -EINVAL; 982 983 *channel = reply.cmd.channel + 1; 984 985 return 0; 986 } 987 988 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel) 989 { 990 struct wmi_p2p_cfg_cmd cmd = { 991 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD, 992 .channel = channel - 1, 993 }; 994 995 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd)); 996 } 997 998 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 999 const void *mac_addr, int key_usage) 1000 { 1001 struct wmi_delete_cipher_key_cmd cmd = { 1002 .key_index = key_index, 1003 }; 1004 1005 if (mac_addr) 1006 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1007 1008 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1009 } 1010 1011 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1012 const void *mac_addr, int key_len, const void *key, 1013 int key_usage) 1014 { 1015 struct wmi_add_cipher_key_cmd cmd = { 1016 .key_index = key_index, 1017 .key_usage = key_usage, 1018 .key_len = key_len, 1019 }; 1020 1021 if (!key || (key_len > sizeof(cmd.key))) 1022 return -EINVAL; 1023 1024 memcpy(cmd.key, key, key_len); 1025 if (mac_addr) 1026 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1027 1028 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1029 } 1030 1031 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1032 { 1033 static const char *const names[] = { 1034 [WMI_FRAME_BEACON] = "BEACON", 1035 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1036 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1037 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1038 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1039 }; 1040 int rc; 1041 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1042 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1043 1044 if (!cmd) { 1045 rc = -ENOMEM; 1046 goto out; 1047 } 1048 if (!ie) 1049 ie_len = 0; 1050 1051 cmd->mgmt_frm_type = type; 1052 /* BUG: FW API define ieLen as u8. Will fix FW */ 1053 cmd->ie_len = cpu_to_le16(ie_len); 1054 memcpy(cmd->ie_info, ie, ie_len); 1055 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1056 kfree(cmd); 1057 out: 1058 if (rc) { 1059 const char *name = type < ARRAY_SIZE(names) ? 1060 names[type] : "??"; 1061 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1062 } 1063 1064 return rc; 1065 } 1066 1067 /** 1068 * wmi_rxon - turn radio on/off 1069 * @on: turn on if true, off otherwise 1070 * 1071 * Only switch radio. Channel should be set separately. 1072 * No timeout for rxon - radio turned on forever unless some other call 1073 * turns it off 1074 */ 1075 int wmi_rxon(struct wil6210_priv *wil, bool on) 1076 { 1077 int rc; 1078 struct { 1079 struct wil6210_mbox_hdr_wmi wmi; 1080 struct wmi_listen_started_event evt; 1081 } __packed reply; 1082 1083 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1084 1085 if (on) { 1086 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1087 WMI_LISTEN_STARTED_EVENTID, 1088 &reply, sizeof(reply), 100); 1089 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1090 rc = -EINVAL; 1091 } else { 1092 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1093 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1094 } 1095 1096 return rc; 1097 } 1098 1099 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1100 { 1101 struct wireless_dev *wdev = wil->wdev; 1102 struct net_device *ndev = wil_to_ndev(wil); 1103 struct wmi_cfg_rx_chain_cmd cmd = { 1104 .action = WMI_RX_CHAIN_ADD, 1105 .rx_sw_ring = { 1106 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1107 .ring_mem_base = cpu_to_le64(vring->pa), 1108 .ring_size = cpu_to_le16(vring->size), 1109 }, 1110 .mid = 0, /* TODO - what is it? */ 1111 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1112 .reorder_type = WMI_RX_SW_REORDER, 1113 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1114 }; 1115 struct { 1116 struct wil6210_mbox_hdr_wmi wmi; 1117 struct wmi_cfg_rx_chain_done_event evt; 1118 } __packed evt; 1119 int rc; 1120 1121 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1122 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1123 1124 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1125 if (ch) 1126 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1127 cmd.sniffer_cfg.phy_info_mode = 1128 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1129 cmd.sniffer_cfg.phy_support = 1130 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1131 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1132 } else { 1133 /* Initialize offload (in non-sniffer mode). 1134 * Linux IP stack always calculates IP checksum 1135 * HW always calculate TCP/UDP checksum 1136 */ 1137 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1138 } 1139 1140 if (rx_align_2) 1141 cmd.l2_802_3_offload_ctrl |= 1142 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1143 1144 /* typical time for secure PCP is 840ms */ 1145 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1146 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1147 if (rc) 1148 return rc; 1149 1150 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1151 1152 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1153 le32_to_cpu(evt.evt.status), vring->hwtail); 1154 1155 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1156 rc = -EINVAL; 1157 1158 return rc; 1159 } 1160 1161 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1162 { 1163 int rc; 1164 struct wmi_temp_sense_cmd cmd = { 1165 .measure_baseband_en = cpu_to_le32(!!t_bb), 1166 .measure_rf_en = cpu_to_le32(!!t_rf), 1167 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1168 }; 1169 struct { 1170 struct wil6210_mbox_hdr_wmi wmi; 1171 struct wmi_temp_sense_done_event evt; 1172 } __packed reply; 1173 1174 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1175 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1176 if (rc) 1177 return rc; 1178 1179 if (t_bb) 1180 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1181 if (t_rf) 1182 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1183 1184 return 0; 1185 } 1186 1187 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason) 1188 { 1189 int rc; 1190 u16 reason_code; 1191 struct wmi_disconnect_sta_cmd cmd = { 1192 .disconnect_reason = cpu_to_le16(reason), 1193 }; 1194 struct { 1195 struct wil6210_mbox_hdr_wmi wmi; 1196 struct wmi_disconnect_event evt; 1197 } __packed reply; 1198 1199 ether_addr_copy(cmd.dst_mac, mac); 1200 1201 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1202 1203 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), 1204 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); 1205 /* failure to disconnect in reasonable time treated as FW error */ 1206 if (rc) { 1207 wil_fw_error_recovery(wil); 1208 return rc; 1209 } 1210 1211 /* call event handler manually after processing wmi_call, 1212 * to avoid deadlock - disconnect event handler acquires wil->mutex 1213 * while it is already held here 1214 */ 1215 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1216 1217 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1218 reply.evt.bssid, reason_code, 1219 reply.evt.disconnect_reason); 1220 1221 wil->sinfo_gen++; 1222 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1223 1224 return 0; 1225 } 1226 1227 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1228 { 1229 struct wmi_vring_ba_en_cmd cmd = { 1230 .ringid = ringid, 1231 .agg_max_wsize = size, 1232 .ba_timeout = cpu_to_le16(timeout), 1233 .amsdu = 0, 1234 }; 1235 1236 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1237 ringid, size, timeout); 1238 1239 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1240 } 1241 1242 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1243 { 1244 struct wmi_vring_ba_dis_cmd cmd = { 1245 .ringid = ringid, 1246 .reason = cpu_to_le16(reason), 1247 }; 1248 1249 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1250 ringid, reason); 1251 1252 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1253 } 1254 1255 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1256 { 1257 struct wmi_rcp_delba_cmd cmd = { 1258 .cidxtid = cidxtid, 1259 .reason = cpu_to_le16(reason), 1260 }; 1261 1262 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1263 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1264 1265 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1266 } 1267 1268 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1269 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1270 { 1271 int rc; 1272 struct wmi_rcp_addba_resp_cmd cmd = { 1273 .cidxtid = mk_cidxtid(cid, tid), 1274 .dialog_token = token, 1275 .status_code = cpu_to_le16(status), 1276 /* bit 0: A-MSDU supported 1277 * bit 1: policy (should be 0 for us) 1278 * bits 2..5: TID 1279 * bits 6..15: buffer size 1280 */ 1281 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1282 (agg_wsize << 6)), 1283 .ba_timeout = cpu_to_le16(timeout), 1284 }; 1285 struct { 1286 struct wil6210_mbox_hdr_wmi wmi; 1287 struct wmi_rcp_addba_resp_sent_event evt; 1288 } __packed reply; 1289 1290 wil_dbg_wmi(wil, 1291 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1292 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1293 1294 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1295 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1296 100); 1297 if (rc) 1298 return rc; 1299 1300 if (reply.evt.status) { 1301 wil_err(wil, "ADDBA response failed with status %d\n", 1302 le16_to_cpu(reply.evt.status)); 1303 rc = -EINVAL; 1304 } 1305 1306 return rc; 1307 } 1308 1309 void wmi_event_flush(struct wil6210_priv *wil) 1310 { 1311 struct pending_wmi_event *evt, *t; 1312 1313 wil_dbg_wmi(wil, "%s()\n", __func__); 1314 1315 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1316 list_del(&evt->list); 1317 kfree(evt); 1318 } 1319 } 1320 1321 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1322 void *d, int len) 1323 { 1324 uint i; 1325 1326 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1327 if (wmi_evt_handlers[i].eventid == id) { 1328 wmi_evt_handlers[i].handler(wil, id, d, len); 1329 return true; 1330 } 1331 } 1332 1333 return false; 1334 } 1335 1336 static void wmi_event_handle(struct wil6210_priv *wil, 1337 struct wil6210_mbox_hdr *hdr) 1338 { 1339 u16 len = le16_to_cpu(hdr->len); 1340 1341 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1342 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 1343 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); 1344 void *evt_data = (void *)(&wmi[1]); 1345 u16 id = le16_to_cpu(wmi->id); 1346 1347 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1348 id, wil->reply_id); 1349 /* check if someone waits for this event */ 1350 if (wil->reply_id && wil->reply_id == id) { 1351 if (wil->reply_buf) { 1352 memcpy(wil->reply_buf, wmi, 1353 min(len, wil->reply_size)); 1354 } else { 1355 wmi_evt_call_handler(wil, id, evt_data, 1356 len - sizeof(*wmi)); 1357 } 1358 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id); 1359 complete(&wil->wmi_call); 1360 return; 1361 } 1362 /* unsolicited event */ 1363 /* search for handler */ 1364 if (!wmi_evt_call_handler(wil, id, evt_data, 1365 len - sizeof(*wmi))) { 1366 wil_info(wil, "Unhandled event 0x%04x\n", id); 1367 } 1368 } else { 1369 wil_err(wil, "Unknown event type\n"); 1370 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1371 hdr, sizeof(*hdr) + len, true); 1372 } 1373 } 1374 1375 /* 1376 * Retrieve next WMI event from the pending list 1377 */ 1378 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1379 { 1380 ulong flags; 1381 struct list_head *ret = NULL; 1382 1383 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1384 1385 if (!list_empty(&wil->pending_wmi_ev)) { 1386 ret = wil->pending_wmi_ev.next; 1387 list_del(ret); 1388 } 1389 1390 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1391 1392 return ret; 1393 } 1394 1395 /* 1396 * Handler for the WMI events 1397 */ 1398 void wmi_event_worker(struct work_struct *work) 1399 { 1400 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1401 wmi_event_worker); 1402 struct pending_wmi_event *evt; 1403 struct list_head *lh; 1404 1405 wil_dbg_wmi(wil, "Start %s\n", __func__); 1406 while ((lh = next_wmi_ev(wil)) != NULL) { 1407 evt = list_entry(lh, struct pending_wmi_event, list); 1408 wmi_event_handle(wil, &evt->event.hdr); 1409 kfree(evt); 1410 } 1411 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1412 } 1413