1 /* 2 * Copyright (c) 2012-2014 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 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */ 89 /* 90 * 920000..930000 ucode code RAM 91 * 930000..932000 ucode data RAM 92 * 932000..949000 back-door debug data 93 */ 94 }; 95 96 /** 97 * return AHB address for given firmware/ucode internal (linker) address 98 * @x - internal address 99 * If address have no valid AHB mapping, return 0 100 */ 101 static u32 wmi_addr_remap(u32 x) 102 { 103 uint i; 104 105 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 106 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)) 107 return x + fw_mapping[i].host - fw_mapping[i].from; 108 } 109 110 return 0; 111 } 112 113 /** 114 * Check address validity for WMI buffer; remap if needed 115 * @ptr - internal (linker) fw/ucode address 116 * 117 * Valid buffer should be DWORD aligned 118 * 119 * return address for accessing buffer from the host; 120 * if buffer is not valid, return NULL. 121 */ 122 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_) 123 { 124 u32 off; 125 u32 ptr = le32_to_cpu(ptr_); 126 127 if (ptr % 4) 128 return NULL; 129 130 ptr = wmi_addr_remap(ptr); 131 if (ptr < WIL6210_FW_HOST_OFF) 132 return NULL; 133 134 off = HOSTADDR(ptr); 135 if (off > WIL6210_MEM_SIZE - 4) 136 return NULL; 137 138 return wil->csr + off; 139 } 140 141 /** 142 * Check address validity 143 */ 144 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr) 145 { 146 u32 off; 147 148 if (ptr % 4) 149 return NULL; 150 151 if (ptr < WIL6210_FW_HOST_OFF) 152 return NULL; 153 154 off = HOSTADDR(ptr); 155 if (off > WIL6210_MEM_SIZE - 4) 156 return NULL; 157 158 return wil->csr + off; 159 } 160 161 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, 162 struct wil6210_mbox_hdr *hdr) 163 { 164 void __iomem *src = wmi_buffer(wil, ptr); 165 166 if (!src) 167 return -EINVAL; 168 169 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr)); 170 171 return 0; 172 } 173 174 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 175 { 176 struct { 177 struct wil6210_mbox_hdr hdr; 178 struct wil6210_mbox_hdr_wmi wmi; 179 } __packed cmd = { 180 .hdr = { 181 .type = WIL_MBOX_HDR_TYPE_WMI, 182 .flags = 0, 183 .len = cpu_to_le16(sizeof(cmd.wmi) + len), 184 }, 185 .wmi = { 186 .mid = 0, 187 .id = cpu_to_le16(cmdid), 188 }, 189 }; 190 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx; 191 struct wil6210_mbox_ring_desc d_head; 192 u32 next_head; 193 void __iomem *dst; 194 void __iomem *head = wmi_addr(wil, r->head); 195 uint retry; 196 197 if (sizeof(cmd) + len > r->entry_size) { 198 wil_err(wil, "WMI size too large: %d bytes, max is %d\n", 199 (int)(sizeof(cmd) + len), r->entry_size); 200 return -ERANGE; 201 } 202 203 might_sleep(); 204 205 if (!test_bit(wil_status_fwready, wil->status)) { 206 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 207 return -EAGAIN; 208 } 209 210 if (!head) { 211 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head); 212 return -EINVAL; 213 } 214 /* read Tx head till it is not busy */ 215 for (retry = 5; retry > 0; retry--) { 216 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head)); 217 if (d_head.sync == 0) 218 break; 219 msleep(20); 220 } 221 if (d_head.sync != 0) { 222 wil_err(wil, "WMI head busy\n"); 223 return -EBUSY; 224 } 225 /* next head */ 226 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size); 227 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head); 228 /* wait till FW finish with previous command */ 229 for (retry = 5; retry > 0; retry--) { 230 r->tail = ioread32(wil->csr + HOST_MBOX + 231 offsetof(struct wil6210_mbox_ctl, tx.tail)); 232 if (next_head != r->tail) 233 break; 234 msleep(20); 235 } 236 if (next_head == r->tail) { 237 wil_err(wil, "WMI ring full\n"); 238 return -EBUSY; 239 } 240 dst = wmi_buffer(wil, d_head.addr); 241 if (!dst) { 242 wil_err(wil, "invalid WMI buffer: 0x%08x\n", 243 le32_to_cpu(d_head.addr)); 244 return -EINVAL; 245 } 246 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); 247 /* set command */ 248 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len); 249 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, 250 sizeof(cmd), true); 251 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, 252 len, true); 253 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); 254 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); 255 /* mark entry as full */ 256 iowrite32(1, wil->csr + HOSTADDR(r->head) + 257 offsetof(struct wil6210_mbox_ring_desc, sync)); 258 /* advance next ptr */ 259 iowrite32(r->head = next_head, wil->csr + HOST_MBOX + 260 offsetof(struct wil6210_mbox_ctl, tx.head)); 261 262 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 263 264 /* interrupt to FW */ 265 iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT); 266 267 return 0; 268 } 269 270 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 271 { 272 int rc; 273 274 mutex_lock(&wil->wmi_mutex); 275 rc = __wmi_send(wil, cmdid, buf, len); 276 mutex_unlock(&wil->wmi_mutex); 277 278 return rc; 279 } 280 281 /*=== Event handlers ===*/ 282 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 283 { 284 struct net_device *ndev = wil_to_ndev(wil); 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); 293 294 if (!is_valid_ether_addr(ndev->dev_addr)) { 295 memcpy(ndev->dev_addr, evt->mac, ETH_ALEN); 296 memcpy(ndev->perm_addr, evt->mac, ETH_ALEN); 297 } 298 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), 299 "%d", wil->fw_version); 300 } 301 302 static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d, 303 int len) 304 { 305 wil_dbg_wmi(wil, "WMI: got FW ready event\n"); 306 307 wil_set_recovery_state(wil, fw_recovery_idle); 308 set_bit(wil_status_fwready, wil->status); 309 /* let the reset sequence continue */ 310 complete(&wil->wmi_ready); 311 } 312 313 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 314 { 315 struct wmi_rx_mgmt_packet_event *data = d; 316 struct wiphy *wiphy = wil_to_wiphy(wil); 317 struct ieee80211_mgmt *rx_mgmt_frame = 318 (struct ieee80211_mgmt *)data->payload; 319 int ch_no = data->info.channel+1; 320 u32 freq = ieee80211_channel_to_frequency(ch_no, 321 IEEE80211_BAND_60GHZ); 322 struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq); 323 s32 signal = data->info.sqi; 324 __le16 fc = rx_mgmt_frame->frame_control; 325 u32 d_len = le32_to_cpu(data->info.len); 326 u16 d_status = le16_to_cpu(data->info.status); 327 328 wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n", 329 data->info.channel, data->info.mcs, data->info.snr, 330 data->info.sqi); 331 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 332 le16_to_cpu(fc)); 333 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 334 data->info.qid, data->info.mid, data->info.cid); 335 336 if (!channel) { 337 wil_err(wil, "Frame on unsupported channel\n"); 338 return; 339 } 340 341 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 342 struct cfg80211_bss *bss; 343 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 344 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 345 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 346 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 347 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 348 u.beacon.variable); 349 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 350 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 351 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 352 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 353 ie_len, true); 354 355 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 356 d_len, signal, GFP_KERNEL); 357 if (bss) { 358 wil_dbg_wmi(wil, "Added BSS %pM\n", 359 rx_mgmt_frame->bssid); 360 cfg80211_put_bss(wiphy, bss); 361 } else { 362 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 363 } 364 } else { 365 cfg80211_rx_mgmt(wil->wdev, freq, signal, 366 (void *)rx_mgmt_frame, d_len, 0); 367 } 368 } 369 370 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 371 void *d, int len) 372 { 373 if (wil->scan_request) { 374 struct wmi_scan_complete_event *data = d; 375 bool aborted = (data->status != WMI_SCAN_SUCCESS); 376 377 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 378 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 379 wil->scan_request, aborted); 380 381 del_timer_sync(&wil->scan_timer); 382 cfg80211_scan_done(wil->scan_request, aborted); 383 wil->scan_request = NULL; 384 } else { 385 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 386 } 387 } 388 389 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 390 { 391 struct net_device *ndev = wil_to_ndev(wil); 392 struct wireless_dev *wdev = wil->wdev; 393 struct wmi_connect_event *evt = d; 394 int ch; /* channel number */ 395 struct station_info sinfo; 396 u8 *assoc_req_ie, *assoc_resp_ie; 397 size_t assoc_req_ielen, assoc_resp_ielen; 398 /* capinfo(u16) + listen_interval(u16) + IEs */ 399 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 400 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 401 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 402 403 if (len < sizeof(*evt)) { 404 wil_err(wil, "Connect event too short : %d bytes\n", len); 405 return; 406 } 407 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 408 evt->assoc_resp_len) { 409 wil_err(wil, 410 "Connect event corrupted : %d != %d + %d + %d + %d\n", 411 len, (int)sizeof(*evt), evt->beacon_ie_len, 412 evt->assoc_req_len, evt->assoc_resp_len); 413 return; 414 } 415 if (evt->cid >= WIL6210_MAX_CID) { 416 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 417 return; 418 } 419 420 ch = evt->channel + 1; 421 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n", 422 evt->bssid, ch, evt->cid); 423 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 424 evt->assoc_info, len - sizeof(*evt), true); 425 426 /* figure out IE's */ 427 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 428 assoc_req_ie_offset]; 429 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 430 if (evt->assoc_req_len <= assoc_req_ie_offset) { 431 assoc_req_ie = NULL; 432 assoc_req_ielen = 0; 433 } 434 435 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 436 evt->assoc_req_len + 437 assoc_resp_ie_offset]; 438 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 439 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 440 assoc_resp_ie = NULL; 441 assoc_resp_ielen = 0; 442 } 443 444 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 445 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 446 if (!test_bit(wil_status_fwconnecting, wil->status)) { 447 wil_err(wil, "Not in connecting state\n"); 448 return; 449 } 450 del_timer_sync(&wil->connect_timer); 451 cfg80211_connect_result(ndev, evt->bssid, 452 assoc_req_ie, assoc_req_ielen, 453 assoc_resp_ie, assoc_resp_ielen, 454 WLAN_STATUS_SUCCESS, GFP_KERNEL); 455 456 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 457 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 458 memset(&sinfo, 0, sizeof(sinfo)); 459 460 sinfo.generation = wil->sinfo_gen++; 461 462 if (assoc_req_ie) { 463 sinfo.assoc_req_ies = assoc_req_ie; 464 sinfo.assoc_req_ies_len = assoc_req_ielen; 465 } 466 467 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 468 } 469 clear_bit(wil_status_fwconnecting, wil->status); 470 set_bit(wil_status_fwconnected, wil->status); 471 472 /* FIXME FW can transmit only ucast frames to peer */ 473 /* FIXME real ring_id instead of hard coded 0 */ 474 memcpy(wil->sta[evt->cid].addr, evt->bssid, ETH_ALEN); 475 wil->sta[evt->cid].status = wil_sta_conn_pending; 476 477 wil->pending_connect_cid = evt->cid; 478 queue_work(wil->wq_service, &wil->connect_worker); 479 } 480 481 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 482 void *d, int len) 483 { 484 struct wmi_disconnect_event *evt = d; 485 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 486 487 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 488 evt->bssid, reason_code, evt->disconnect_reason); 489 490 wil->sinfo_gen++; 491 492 mutex_lock(&wil->mutex); 493 wil6210_disconnect(wil, evt->bssid, reason_code, true); 494 mutex_unlock(&wil->mutex); 495 } 496 497 /* 498 * Firmware reports EAPOL frame using WME event. 499 * Reconstruct Ethernet frame and deliver it via normal Rx 500 */ 501 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 502 void *d, int len) 503 { 504 struct net_device *ndev = wil_to_ndev(wil); 505 struct wmi_eapol_rx_event *evt = d; 506 u16 eapol_len = le16_to_cpu(evt->eapol_len); 507 int sz = eapol_len + ETH_HLEN; 508 struct sk_buff *skb; 509 struct ethhdr *eth; 510 int cid; 511 struct wil_net_stats *stats = NULL; 512 513 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 514 evt->src_mac); 515 516 cid = wil_find_cid(wil, evt->src_mac); 517 if (cid >= 0) 518 stats = &wil->sta[cid].stats; 519 520 if (eapol_len > 196) { /* TODO: revisit size limit */ 521 wil_err(wil, "EAPOL too large\n"); 522 return; 523 } 524 525 skb = alloc_skb(sz, GFP_KERNEL); 526 if (!skb) { 527 wil_err(wil, "Failed to allocate skb\n"); 528 return; 529 } 530 531 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 532 memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN); 533 memcpy(eth->h_source, evt->src_mac, ETH_ALEN); 534 eth->h_proto = cpu_to_be16(ETH_P_PAE); 535 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 536 skb->protocol = eth_type_trans(skb, ndev); 537 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 538 ndev->stats.rx_packets++; 539 ndev->stats.rx_bytes += sz; 540 if (stats) { 541 stats->rx_packets++; 542 stats->rx_bytes += sz; 543 } 544 } else { 545 ndev->stats.rx_dropped++; 546 if (stats) 547 stats->rx_dropped++; 548 } 549 } 550 551 static void wil_addba_tx_cid(struct wil6210_priv *wil, u8 cid, u16 wsize) 552 { 553 struct vring_tx_data *t; 554 int i; 555 556 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 557 if (cid != wil->vring2cid_tid[i][0]) 558 continue; 559 t = &wil->vring_tx_data[i]; 560 if (!t->enabled) 561 continue; 562 563 wil_addba_tx_request(wil, i, wsize); 564 } 565 } 566 567 static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len) 568 { 569 struct wmi_data_port_open_event *evt = d; 570 u8 cid = evt->cid; 571 572 wil_dbg_wmi(wil, "Link UP for CID %d\n", cid); 573 574 if (cid >= ARRAY_SIZE(wil->sta)) { 575 wil_err(wil, "Link UP for invalid CID %d\n", cid); 576 return; 577 } 578 579 wil->sta[cid].data_port_open = true; 580 if (agg_wsize >= 0) 581 wil_addba_tx_cid(wil, cid, agg_wsize); 582 } 583 584 static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len) 585 { 586 struct net_device *ndev = wil_to_ndev(wil); 587 struct wmi_wbe_link_down_event *evt = d; 588 u8 cid = evt->cid; 589 590 wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n", 591 cid, le32_to_cpu(evt->reason)); 592 593 if (cid >= ARRAY_SIZE(wil->sta)) { 594 wil_err(wil, "Link DOWN for invalid CID %d\n", cid); 595 return; 596 } 597 598 wil->sta[cid].data_port_open = false; 599 netif_carrier_off(ndev); 600 } 601 602 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 603 int len) 604 { 605 struct wmi_vring_ba_status_event *evt = d; 606 struct vring_tx_data *txdata; 607 608 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 609 evt->ringid, 610 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 611 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 612 evt->amsdu ? "+" : "-"); 613 614 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 615 wil_err(wil, "invalid ring id %d\n", evt->ringid); 616 return; 617 } 618 619 if (evt->status != WMI_BA_AGREED) { 620 evt->ba_timeout = 0; 621 evt->agg_wsize = 0; 622 evt->amsdu = 0; 623 } 624 625 txdata = &wil->vring_tx_data[evt->ringid]; 626 627 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 628 txdata->agg_wsize = evt->agg_wsize; 629 txdata->agg_amsdu = evt->amsdu; 630 txdata->addba_in_progress = false; 631 } 632 633 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 634 int len) 635 { 636 struct wmi_rcp_addba_req_event *evt = d; 637 638 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 639 evt->ba_param_set, evt->ba_timeout, 640 evt->ba_seq_ctrl); 641 } 642 643 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 644 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 645 { 646 struct wmi_delba_event *evt = d; 647 u8 cid, tid; 648 u16 reason = __le16_to_cpu(evt->reason); 649 struct wil_sta_info *sta; 650 struct wil_tid_ampdu_rx *r; 651 652 might_sleep(); 653 parse_cidxtid(evt->cidxtid, &cid, &tid); 654 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 655 cid, tid, 656 evt->from_initiator ? "originator" : "recipient", 657 reason); 658 if (!evt->from_initiator) { 659 int i; 660 /* find Tx vring it belongs to */ 661 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 662 if ((wil->vring2cid_tid[i][0] == cid) && 663 (wil->vring2cid_tid[i][1] == tid)) { 664 struct vring_tx_data *txdata = 665 &wil->vring_tx_data[i]; 666 667 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 668 txdata->agg_timeout = 0; 669 txdata->agg_wsize = 0; 670 txdata->addba_in_progress = false; 671 672 break; /* max. 1 matching ring */ 673 } 674 } 675 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 676 wil_err(wil, "DELBA: unable to find Tx vring\n"); 677 return; 678 } 679 680 sta = &wil->sta[cid]; 681 682 spin_lock_bh(&sta->tid_rx_lock); 683 684 r = sta->tid_rx[tid]; 685 sta->tid_rx[tid] = NULL; 686 wil_tid_ampdu_rx_free(wil, r); 687 688 spin_unlock_bh(&sta->tid_rx_lock); 689 } 690 691 static const struct { 692 int eventid; 693 void (*handler)(struct wil6210_priv *wil, int eventid, 694 void *data, int data_len); 695 } wmi_evt_handlers[] = { 696 {WMI_READY_EVENTID, wmi_evt_ready}, 697 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready}, 698 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_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_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup}, 704 {WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown}, 705 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 706 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 707 {WMI_DELBA_EVENTID, wmi_evt_delba}, 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_reset_done, 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 = ioread32(wil->csr + HOST_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 iowrite32(0, wil->csr + HOSTADDR(r->tail) + 776 offsetof(struct wil6210_mbox_ring_desc, sync)); 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 iowrite32(r->tail, wil->csr + HOST_MBOX + 796 offsetof(struct wil6210_mbox_ctl, rx.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 int 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, 20); 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 memcpy(cmd.mac, addr, ETH_ALEN); 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, u8 chan) 867 { 868 int rc; 869 870 struct wmi_pcp_start_cmd cmd = { 871 .bcon_interval = cpu_to_le16(bi), 872 .network_type = wmi_nettype, 873 .disable_sec_offload = 1, 874 .channel = chan - 1, 875 .pcp_max_assoc_sta = max_assoc_sta, 876 }; 877 struct { 878 struct wil6210_mbox_hdr_wmi wmi; 879 struct wmi_pcp_started_event evt; 880 } __packed reply; 881 882 if (!wil->secure_pcp) 883 cmd.disable_sec = 1; 884 885 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 886 (cmd.pcp_max_assoc_sta <= 0)) { 887 wil_info(wil, 888 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 889 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 890 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 891 } 892 893 /* 894 * Processing time may be huge, in case of secure AP it takes about 895 * 3500ms for FW to start AP 896 */ 897 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 898 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 899 if (rc) 900 return rc; 901 902 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 903 rc = -EINVAL; 904 905 return rc; 906 } 907 908 int wmi_pcp_stop(struct wil6210_priv *wil) 909 { 910 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 911 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 912 } 913 914 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 915 { 916 struct wmi_set_ssid_cmd cmd = { 917 .ssid_len = cpu_to_le32(ssid_len), 918 }; 919 920 if (ssid_len > sizeof(cmd.ssid)) 921 return -EINVAL; 922 923 memcpy(cmd.ssid, ssid, ssid_len); 924 925 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 926 } 927 928 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 929 { 930 int rc; 931 struct { 932 struct wil6210_mbox_hdr_wmi wmi; 933 struct wmi_set_ssid_cmd cmd; 934 } __packed reply; 935 int len; /* reply.cmd.ssid_len in CPU order */ 936 937 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 938 &reply, sizeof(reply), 20); 939 if (rc) 940 return rc; 941 942 len = le32_to_cpu(reply.cmd.ssid_len); 943 if (len > sizeof(reply.cmd.ssid)) 944 return -EINVAL; 945 946 *ssid_len = len; 947 memcpy(ssid, reply.cmd.ssid, len); 948 949 return 0; 950 } 951 952 int wmi_set_channel(struct wil6210_priv *wil, int channel) 953 { 954 struct wmi_set_pcp_channel_cmd cmd = { 955 .channel = channel - 1, 956 }; 957 958 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 959 } 960 961 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 962 { 963 int rc; 964 struct { 965 struct wil6210_mbox_hdr_wmi wmi; 966 struct wmi_set_pcp_channel_cmd cmd; 967 } __packed reply; 968 969 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 970 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 971 if (rc) 972 return rc; 973 974 if (reply.cmd.channel > 3) 975 return -EINVAL; 976 977 *channel = reply.cmd.channel + 1; 978 979 return 0; 980 } 981 982 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel) 983 { 984 struct wmi_p2p_cfg_cmd cmd = { 985 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD, 986 .channel = channel - 1, 987 }; 988 989 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd)); 990 } 991 992 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 993 const void *mac_addr) 994 { 995 struct wmi_delete_cipher_key_cmd cmd = { 996 .key_index = key_index, 997 }; 998 999 if (mac_addr) 1000 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1001 1002 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1003 } 1004 1005 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1006 const void *mac_addr, int key_len, const void *key) 1007 { 1008 struct wmi_add_cipher_key_cmd cmd = { 1009 .key_index = key_index, 1010 .key_usage = WMI_KEY_USE_PAIRWISE, 1011 .key_len = key_len, 1012 }; 1013 1014 if (!key || (key_len > sizeof(cmd.key))) 1015 return -EINVAL; 1016 1017 memcpy(cmd.key, key, key_len); 1018 if (mac_addr) 1019 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1020 1021 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1022 } 1023 1024 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1025 { 1026 int rc; 1027 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1028 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1029 1030 if (!cmd) 1031 return -ENOMEM; 1032 if (!ie) 1033 ie_len = 0; 1034 1035 cmd->mgmt_frm_type = type; 1036 /* BUG: FW API define ieLen as u8. Will fix FW */ 1037 cmd->ie_len = cpu_to_le16(ie_len); 1038 memcpy(cmd->ie_info, ie, ie_len); 1039 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1040 kfree(cmd); 1041 1042 return rc; 1043 } 1044 1045 /** 1046 * wmi_rxon - turn radio on/off 1047 * @on: turn on if true, off otherwise 1048 * 1049 * Only switch radio. Channel should be set separately. 1050 * No timeout for rxon - radio turned on forever unless some other call 1051 * turns it off 1052 */ 1053 int wmi_rxon(struct wil6210_priv *wil, bool on) 1054 { 1055 int rc; 1056 struct { 1057 struct wil6210_mbox_hdr_wmi wmi; 1058 struct wmi_listen_started_event evt; 1059 } __packed reply; 1060 1061 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1062 1063 if (on) { 1064 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1065 WMI_LISTEN_STARTED_EVENTID, 1066 &reply, sizeof(reply), 100); 1067 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1068 rc = -EINVAL; 1069 } else { 1070 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1071 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1072 } 1073 1074 return rc; 1075 } 1076 1077 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1078 { 1079 struct wireless_dev *wdev = wil->wdev; 1080 struct net_device *ndev = wil_to_ndev(wil); 1081 struct wmi_cfg_rx_chain_cmd cmd = { 1082 .action = WMI_RX_CHAIN_ADD, 1083 .rx_sw_ring = { 1084 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1085 .ring_mem_base = cpu_to_le64(vring->pa), 1086 .ring_size = cpu_to_le16(vring->size), 1087 }, 1088 .mid = 0, /* TODO - what is it? */ 1089 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1090 .reorder_type = WMI_RX_SW_REORDER, 1091 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1092 }; 1093 struct { 1094 struct wil6210_mbox_hdr_wmi wmi; 1095 struct wmi_cfg_rx_chain_done_event evt; 1096 } __packed evt; 1097 int rc; 1098 1099 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1100 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1101 1102 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1103 if (ch) 1104 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1105 cmd.sniffer_cfg.phy_info_mode = 1106 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1107 cmd.sniffer_cfg.phy_support = 1108 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1109 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP); 1110 } else { 1111 /* Initialize offload (in non-sniffer mode). 1112 * Linux IP stack always calculates IP checksum 1113 * HW always calculate TCP/UDP checksum 1114 */ 1115 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1116 } 1117 /* typical time for secure PCP is 840ms */ 1118 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1119 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1120 if (rc) 1121 return rc; 1122 1123 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1124 1125 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1126 le32_to_cpu(evt.evt.status), vring->hwtail); 1127 1128 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1129 rc = -EINVAL; 1130 1131 return rc; 1132 } 1133 1134 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1135 { 1136 int rc; 1137 struct wmi_temp_sense_cmd cmd = { 1138 .measure_baseband_en = cpu_to_le32(!!t_bb), 1139 .measure_rf_en = cpu_to_le32(!!t_rf), 1140 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1141 }; 1142 struct { 1143 struct wil6210_mbox_hdr_wmi wmi; 1144 struct wmi_temp_sense_done_event evt; 1145 } __packed reply; 1146 1147 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1148 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1149 if (rc) 1150 return rc; 1151 1152 if (t_bb) 1153 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1154 if (t_rf) 1155 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1156 1157 return 0; 1158 } 1159 1160 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason) 1161 { 1162 struct wmi_disconnect_sta_cmd cmd = { 1163 .disconnect_reason = cpu_to_le16(reason), 1164 }; 1165 memcpy(cmd.dst_mac, mac, ETH_ALEN); 1166 1167 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1168 1169 return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd)); 1170 } 1171 1172 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1173 { 1174 struct wmi_vring_ba_en_cmd cmd = { 1175 .ringid = ringid, 1176 .agg_max_wsize = size, 1177 .ba_timeout = cpu_to_le16(timeout), 1178 .amsdu = 0, 1179 }; 1180 1181 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1182 ringid, size, timeout); 1183 1184 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1185 } 1186 1187 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1188 { 1189 struct wmi_vring_ba_dis_cmd cmd = { 1190 .ringid = ringid, 1191 .reason = cpu_to_le16(reason), 1192 }; 1193 1194 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1195 ringid, reason); 1196 1197 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1198 } 1199 1200 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1201 { 1202 struct wmi_rcp_delba_cmd cmd = { 1203 .cidxtid = cidxtid, 1204 .reason = cpu_to_le16(reason), 1205 }; 1206 1207 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1208 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1209 1210 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1211 } 1212 1213 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1214 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1215 { 1216 int rc; 1217 struct wmi_rcp_addba_resp_cmd cmd = { 1218 .cidxtid = mk_cidxtid(cid, tid), 1219 .dialog_token = token, 1220 .status_code = cpu_to_le16(status), 1221 /* bit 0: A-MSDU supported 1222 * bit 1: policy (should be 0 for us) 1223 * bits 2..5: TID 1224 * bits 6..15: buffer size 1225 */ 1226 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1227 (agg_wsize << 6)), 1228 .ba_timeout = cpu_to_le16(timeout), 1229 }; 1230 struct { 1231 struct wil6210_mbox_hdr_wmi wmi; 1232 struct wmi_rcp_addba_resp_sent_event evt; 1233 } __packed reply; 1234 1235 wil_dbg_wmi(wil, 1236 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1237 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1238 1239 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1240 WMI_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 100); 1241 if (rc) 1242 return rc; 1243 1244 if (reply.evt.status) { 1245 wil_err(wil, "ADDBA response failed with status %d\n", 1246 le16_to_cpu(reply.evt.status)); 1247 rc = -EINVAL; 1248 } 1249 1250 return rc; 1251 } 1252 1253 void wmi_event_flush(struct wil6210_priv *wil) 1254 { 1255 struct pending_wmi_event *evt, *t; 1256 1257 wil_dbg_wmi(wil, "%s()\n", __func__); 1258 1259 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1260 list_del(&evt->list); 1261 kfree(evt); 1262 } 1263 } 1264 1265 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1266 void *d, int len) 1267 { 1268 uint i; 1269 1270 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1271 if (wmi_evt_handlers[i].eventid == id) { 1272 wmi_evt_handlers[i].handler(wil, id, d, len); 1273 return true; 1274 } 1275 } 1276 1277 return false; 1278 } 1279 1280 static void wmi_event_handle(struct wil6210_priv *wil, 1281 struct wil6210_mbox_hdr *hdr) 1282 { 1283 u16 len = le16_to_cpu(hdr->len); 1284 1285 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1286 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 1287 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); 1288 void *evt_data = (void *)(&wmi[1]); 1289 u16 id = le16_to_cpu(wmi->id); 1290 1291 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1292 id, wil->reply_id); 1293 /* check if someone waits for this event */ 1294 if (wil->reply_id && wil->reply_id == id) { 1295 if (wil->reply_buf) { 1296 memcpy(wil->reply_buf, wmi, 1297 min(len, wil->reply_size)); 1298 } else { 1299 wmi_evt_call_handler(wil, id, evt_data, 1300 len - sizeof(*wmi)); 1301 } 1302 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id); 1303 complete(&wil->wmi_call); 1304 return; 1305 } 1306 /* unsolicited event */ 1307 /* search for handler */ 1308 if (!wmi_evt_call_handler(wil, id, evt_data, 1309 len - sizeof(*wmi))) { 1310 wil_err(wil, "Unhandled event 0x%04x\n", id); 1311 } 1312 } else { 1313 wil_err(wil, "Unknown event type\n"); 1314 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1315 hdr, sizeof(*hdr) + len, true); 1316 } 1317 } 1318 1319 /* 1320 * Retrieve next WMI event from the pending list 1321 */ 1322 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1323 { 1324 ulong flags; 1325 struct list_head *ret = NULL; 1326 1327 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1328 1329 if (!list_empty(&wil->pending_wmi_ev)) { 1330 ret = wil->pending_wmi_ev.next; 1331 list_del(ret); 1332 } 1333 1334 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1335 1336 return ret; 1337 } 1338 1339 /* 1340 * Handler for the WMI events 1341 */ 1342 void wmi_event_worker(struct work_struct *work) 1343 { 1344 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1345 wmi_event_worker); 1346 struct pending_wmi_event *evt; 1347 struct list_head *lh; 1348 1349 wil_dbg_wmi(wil, "Start %s\n", __func__); 1350 while ((lh = next_wmi_ev(wil)) != NULL) { 1351 evt = list_entry(lh, struct pending_wmi_event, list); 1352 wmi_event_handle(wil, &evt->event.hdr); 1353 kfree(evt); 1354 } 1355 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1356 } 1357