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 = ioread32(wil->csr + HOST_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 iowrite32(1, wil->csr + HOSTADDR(r->head) + 258 offsetof(struct wil6210_mbox_ring_desc, sync)); 259 /* advance next ptr */ 260 iowrite32(r->head = next_head, wil->csr + HOST_MBOX + 261 offsetof(struct wil6210_mbox_ctl, tx.head)); 262 263 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 264 265 /* interrupt to FW */ 266 iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT); 267 268 return 0; 269 } 270 271 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 272 { 273 int rc; 274 275 mutex_lock(&wil->wmi_mutex); 276 rc = __wmi_send(wil, cmdid, buf, len); 277 mutex_unlock(&wil->wmi_mutex); 278 279 return rc; 280 } 281 282 /*=== Event handlers ===*/ 283 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 284 { 285 struct wireless_dev *wdev = wil->wdev; 286 struct wmi_ready_event *evt = d; 287 288 wil->fw_version = le32_to_cpu(evt->sw_version); 289 wil->n_mids = evt->numof_additional_mids; 290 291 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version, 292 evt->mac, wil->n_mids); 293 /* ignore MAC address, we already have it from the boot loader */ 294 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), 295 "%d", wil->fw_version); 296 } 297 298 static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d, 299 int len) 300 { 301 wil_dbg_wmi(wil, "WMI: got FW ready event\n"); 302 303 wil_set_recovery_state(wil, fw_recovery_idle); 304 set_bit(wil_status_fwready, wil->status); 305 /* let the reset sequence continue */ 306 complete(&wil->wmi_ready); 307 } 308 309 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 310 { 311 struct wmi_rx_mgmt_packet_event *data = d; 312 struct wiphy *wiphy = wil_to_wiphy(wil); 313 struct ieee80211_mgmt *rx_mgmt_frame = 314 (struct ieee80211_mgmt *)data->payload; 315 int ch_no = data->info.channel+1; 316 u32 freq = ieee80211_channel_to_frequency(ch_no, 317 IEEE80211_BAND_60GHZ); 318 struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq); 319 s32 signal = data->info.sqi; 320 __le16 fc = rx_mgmt_frame->frame_control; 321 u32 d_len = le32_to_cpu(data->info.len); 322 u16 d_status = le16_to_cpu(data->info.status); 323 324 wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n", 325 data->info.channel, data->info.mcs, data->info.snr, 326 data->info.sqi); 327 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 328 le16_to_cpu(fc)); 329 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 330 data->info.qid, data->info.mid, data->info.cid); 331 332 if (!channel) { 333 wil_err(wil, "Frame on unsupported channel\n"); 334 return; 335 } 336 337 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 338 struct cfg80211_bss *bss; 339 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 340 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 341 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 342 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 343 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 344 u.beacon.variable); 345 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 346 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 347 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 348 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 349 ie_len, true); 350 351 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 352 d_len, signal, GFP_KERNEL); 353 if (bss) { 354 wil_dbg_wmi(wil, "Added BSS %pM\n", 355 rx_mgmt_frame->bssid); 356 cfg80211_put_bss(wiphy, bss); 357 } else { 358 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 359 } 360 } else { 361 cfg80211_rx_mgmt(wil->wdev, freq, signal, 362 (void *)rx_mgmt_frame, d_len, 0); 363 } 364 } 365 366 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 367 void *d, int len) 368 { 369 if (wil->scan_request) { 370 struct wmi_scan_complete_event *data = d; 371 bool aborted = (data->status != WMI_SCAN_SUCCESS); 372 373 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 374 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 375 wil->scan_request, aborted); 376 377 del_timer_sync(&wil->scan_timer); 378 cfg80211_scan_done(wil->scan_request, aborted); 379 wil->scan_request = NULL; 380 } else { 381 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 382 } 383 } 384 385 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 386 { 387 struct net_device *ndev = wil_to_ndev(wil); 388 struct wireless_dev *wdev = wil->wdev; 389 struct wmi_connect_event *evt = d; 390 int ch; /* channel number */ 391 struct station_info sinfo; 392 u8 *assoc_req_ie, *assoc_resp_ie; 393 size_t assoc_req_ielen, assoc_resp_ielen; 394 /* capinfo(u16) + listen_interval(u16) + IEs */ 395 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 396 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 397 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 398 399 if (len < sizeof(*evt)) { 400 wil_err(wil, "Connect event too short : %d bytes\n", len); 401 return; 402 } 403 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 404 evt->assoc_resp_len) { 405 wil_err(wil, 406 "Connect event corrupted : %d != %d + %d + %d + %d\n", 407 len, (int)sizeof(*evt), evt->beacon_ie_len, 408 evt->assoc_req_len, evt->assoc_resp_len); 409 return; 410 } 411 if (evt->cid >= WIL6210_MAX_CID) { 412 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 413 return; 414 } 415 416 ch = evt->channel + 1; 417 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n", 418 evt->bssid, ch, evt->cid); 419 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 420 evt->assoc_info, len - sizeof(*evt), true); 421 422 /* figure out IE's */ 423 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 424 assoc_req_ie_offset]; 425 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 426 if (evt->assoc_req_len <= assoc_req_ie_offset) { 427 assoc_req_ie = NULL; 428 assoc_req_ielen = 0; 429 } 430 431 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 432 evt->assoc_req_len + 433 assoc_resp_ie_offset]; 434 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 435 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 436 assoc_resp_ie = NULL; 437 assoc_resp_ielen = 0; 438 } 439 440 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 441 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 442 if (!test_bit(wil_status_fwconnecting, wil->status)) { 443 wil_err(wil, "Not in connecting state\n"); 444 return; 445 } 446 del_timer_sync(&wil->connect_timer); 447 cfg80211_connect_result(ndev, evt->bssid, 448 assoc_req_ie, assoc_req_ielen, 449 assoc_resp_ie, assoc_resp_ielen, 450 WLAN_STATUS_SUCCESS, GFP_KERNEL); 451 452 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 453 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 454 memset(&sinfo, 0, sizeof(sinfo)); 455 456 sinfo.generation = wil->sinfo_gen++; 457 458 if (assoc_req_ie) { 459 sinfo.assoc_req_ies = assoc_req_ie; 460 sinfo.assoc_req_ies_len = assoc_req_ielen; 461 } 462 463 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 464 } 465 clear_bit(wil_status_fwconnecting, wil->status); 466 set_bit(wil_status_fwconnected, wil->status); 467 468 /* FIXME FW can transmit only ucast frames to peer */ 469 /* FIXME real ring_id instead of hard coded 0 */ 470 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 471 wil->sta[evt->cid].status = wil_sta_conn_pending; 472 473 wil->pending_connect_cid = evt->cid; 474 queue_work(wil->wq_service, &wil->connect_worker); 475 } 476 477 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 478 void *d, int len) 479 { 480 struct wmi_disconnect_event *evt = d; 481 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 482 483 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 484 evt->bssid, reason_code, evt->disconnect_reason); 485 486 wil->sinfo_gen++; 487 488 mutex_lock(&wil->mutex); 489 wil6210_disconnect(wil, evt->bssid, reason_code, true); 490 mutex_unlock(&wil->mutex); 491 } 492 493 /* 494 * Firmware reports EAPOL frame using WME event. 495 * Reconstruct Ethernet frame and deliver it via normal Rx 496 */ 497 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 498 void *d, int len) 499 { 500 struct net_device *ndev = wil_to_ndev(wil); 501 struct wmi_eapol_rx_event *evt = d; 502 u16 eapol_len = le16_to_cpu(evt->eapol_len); 503 int sz = eapol_len + ETH_HLEN; 504 struct sk_buff *skb; 505 struct ethhdr *eth; 506 int cid; 507 struct wil_net_stats *stats = NULL; 508 509 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 510 evt->src_mac); 511 512 cid = wil_find_cid(wil, evt->src_mac); 513 if (cid >= 0) 514 stats = &wil->sta[cid].stats; 515 516 if (eapol_len > 196) { /* TODO: revisit size limit */ 517 wil_err(wil, "EAPOL too large\n"); 518 return; 519 } 520 521 skb = alloc_skb(sz, GFP_KERNEL); 522 if (!skb) { 523 wil_err(wil, "Failed to allocate skb\n"); 524 return; 525 } 526 527 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 528 ether_addr_copy(eth->h_dest, ndev->dev_addr); 529 ether_addr_copy(eth->h_source, evt->src_mac); 530 eth->h_proto = cpu_to_be16(ETH_P_PAE); 531 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 532 skb->protocol = eth_type_trans(skb, ndev); 533 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 534 ndev->stats.rx_packets++; 535 ndev->stats.rx_bytes += sz; 536 if (stats) { 537 stats->rx_packets++; 538 stats->rx_bytes += sz; 539 } 540 } else { 541 ndev->stats.rx_dropped++; 542 if (stats) 543 stats->rx_dropped++; 544 } 545 } 546 547 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 548 { 549 struct wmi_vring_en_event *evt = d; 550 u8 vri = evt->vring_index; 551 552 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 553 554 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 555 wil_err(wil, "Enable for invalid vring %d\n", vri); 556 return; 557 } 558 wil->vring_tx_data[vri].dot1x_open = true; 559 if (vri == wil->bcast_vring) /* no BA for bcast */ 560 return; 561 if (agg_wsize >= 0) 562 wil_addba_tx_request(wil, vri, agg_wsize); 563 } 564 565 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 566 int len) 567 { 568 struct wmi_vring_ba_status_event *evt = d; 569 struct vring_tx_data *txdata; 570 571 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 572 evt->ringid, 573 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 574 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 575 evt->amsdu ? "+" : "-"); 576 577 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 578 wil_err(wil, "invalid ring id %d\n", evt->ringid); 579 return; 580 } 581 582 if (evt->status != WMI_BA_AGREED) { 583 evt->ba_timeout = 0; 584 evt->agg_wsize = 0; 585 evt->amsdu = 0; 586 } 587 588 txdata = &wil->vring_tx_data[evt->ringid]; 589 590 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 591 txdata->agg_wsize = evt->agg_wsize; 592 txdata->agg_amsdu = evt->amsdu; 593 txdata->addba_in_progress = false; 594 } 595 596 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 597 int len) 598 { 599 struct wmi_rcp_addba_req_event *evt = d; 600 601 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 602 evt->ba_param_set, evt->ba_timeout, 603 evt->ba_seq_ctrl); 604 } 605 606 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 607 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 608 { 609 struct wmi_delba_event *evt = d; 610 u8 cid, tid; 611 u16 reason = __le16_to_cpu(evt->reason); 612 struct wil_sta_info *sta; 613 struct wil_tid_ampdu_rx *r; 614 615 might_sleep(); 616 parse_cidxtid(evt->cidxtid, &cid, &tid); 617 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 618 cid, tid, 619 evt->from_initiator ? "originator" : "recipient", 620 reason); 621 if (!evt->from_initiator) { 622 int i; 623 /* find Tx vring it belongs to */ 624 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 625 if ((wil->vring2cid_tid[i][0] == cid) && 626 (wil->vring2cid_tid[i][1] == tid)) { 627 struct vring_tx_data *txdata = 628 &wil->vring_tx_data[i]; 629 630 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 631 txdata->agg_timeout = 0; 632 txdata->agg_wsize = 0; 633 txdata->addba_in_progress = false; 634 635 break; /* max. 1 matching ring */ 636 } 637 } 638 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 639 wil_err(wil, "DELBA: unable to find Tx vring\n"); 640 return; 641 } 642 643 sta = &wil->sta[cid]; 644 645 spin_lock_bh(&sta->tid_rx_lock); 646 647 r = sta->tid_rx[tid]; 648 sta->tid_rx[tid] = NULL; 649 wil_tid_ampdu_rx_free(wil, r); 650 651 spin_unlock_bh(&sta->tid_rx_lock); 652 } 653 654 static const struct { 655 int eventid; 656 void (*handler)(struct wil6210_priv *wil, int eventid, 657 void *data, int data_len); 658 } wmi_evt_handlers[] = { 659 {WMI_READY_EVENTID, wmi_evt_ready}, 660 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready}, 661 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 662 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 663 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 664 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 665 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 666 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 667 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 668 {WMI_DELBA_EVENTID, wmi_evt_delba}, 669 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 670 }; 671 672 /* 673 * Run in IRQ context 674 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 675 * that will be eventually handled by the @wmi_event_worker in the thread 676 * context of thread "wil6210_wmi" 677 */ 678 void wmi_recv_cmd(struct wil6210_priv *wil) 679 { 680 struct wil6210_mbox_ring_desc d_tail; 681 struct wil6210_mbox_hdr hdr; 682 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 683 struct pending_wmi_event *evt; 684 u8 *cmd; 685 void __iomem *src; 686 ulong flags; 687 unsigned n; 688 689 if (!test_bit(wil_status_reset_done, wil->status)) { 690 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 691 return; 692 } 693 694 for (n = 0;; n++) { 695 u16 len; 696 bool q; 697 698 r->head = ioread32(wil->csr + HOST_MBOX + 699 offsetof(struct wil6210_mbox_ctl, rx.head)); 700 if (r->tail == r->head) 701 break; 702 703 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 704 r->head, r->tail); 705 /* read cmd descriptor from tail */ 706 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 707 sizeof(struct wil6210_mbox_ring_desc)); 708 if (d_tail.sync == 0) { 709 wil_err(wil, "Mbox evt not owned by FW?\n"); 710 break; 711 } 712 713 /* read cmd header from descriptor */ 714 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 715 wil_err(wil, "Mbox evt at 0x%08x?\n", 716 le32_to_cpu(d_tail.addr)); 717 break; 718 } 719 len = le16_to_cpu(hdr.len); 720 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 721 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 722 hdr.flags); 723 724 /* read cmd buffer from descriptor */ 725 src = wmi_buffer(wil, d_tail.addr) + 726 sizeof(struct wil6210_mbox_hdr); 727 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 728 event.wmi) + len, 4), 729 GFP_KERNEL); 730 if (!evt) 731 break; 732 733 evt->event.hdr = hdr; 734 cmd = (void *)&evt->event.wmi; 735 wil_memcpy_fromio_32(cmd, src, len); 736 /* mark entry as empty */ 737 iowrite32(0, wil->csr + HOSTADDR(r->tail) + 738 offsetof(struct wil6210_mbox_ring_desc, sync)); 739 /* indicate */ 740 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 741 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 742 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi; 743 u16 id = le16_to_cpu(wmi->id); 744 u32 tstamp = le32_to_cpu(wmi->timestamp); 745 746 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 747 id, wmi->mid, tstamp); 748 trace_wil6210_wmi_event(wmi, &wmi[1], 749 len - sizeof(*wmi)); 750 } 751 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 752 &evt->event.hdr, sizeof(hdr) + len, true); 753 754 /* advance tail */ 755 r->tail = r->base + ((r->tail - r->base + 756 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 757 iowrite32(r->tail, wil->csr + HOST_MBOX + 758 offsetof(struct wil6210_mbox_ctl, rx.tail)); 759 760 /* add to the pending list */ 761 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 762 list_add_tail(&evt->list, &wil->pending_wmi_ev); 763 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 764 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 765 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 766 } 767 /* normally, 1 event per IRQ should be processed */ 768 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n); 769 } 770 771 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 772 u16 reply_id, void *reply, u8 reply_size, int to_msec) 773 { 774 int rc; 775 int remain; 776 777 mutex_lock(&wil->wmi_mutex); 778 779 rc = __wmi_send(wil, cmdid, buf, len); 780 if (rc) 781 goto out; 782 783 wil->reply_id = reply_id; 784 wil->reply_buf = reply; 785 wil->reply_size = reply_size; 786 remain = wait_for_completion_timeout(&wil->wmi_call, 787 msecs_to_jiffies(to_msec)); 788 if (0 == remain) { 789 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 790 cmdid, reply_id, to_msec); 791 rc = -ETIME; 792 } else { 793 wil_dbg_wmi(wil, 794 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 795 cmdid, reply_id, 796 to_msec - jiffies_to_msecs(remain)); 797 } 798 wil->reply_id = 0; 799 wil->reply_buf = NULL; 800 wil->reply_size = 0; 801 out: 802 mutex_unlock(&wil->wmi_mutex); 803 804 return rc; 805 } 806 807 int wmi_echo(struct wil6210_priv *wil) 808 { 809 struct wmi_echo_cmd cmd = { 810 .value = cpu_to_le32(0x12345678), 811 }; 812 813 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 814 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 815 } 816 817 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 818 { 819 struct wmi_set_mac_address_cmd cmd; 820 821 ether_addr_copy(cmd.mac, addr); 822 823 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 824 825 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 826 } 827 828 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 829 u8 chan, u8 hidden_ssid) 830 { 831 int rc; 832 833 struct wmi_pcp_start_cmd cmd = { 834 .bcon_interval = cpu_to_le16(bi), 835 .network_type = wmi_nettype, 836 .disable_sec_offload = 1, 837 .channel = chan - 1, 838 .pcp_max_assoc_sta = max_assoc_sta, 839 .hidden_ssid = hidden_ssid, 840 }; 841 struct { 842 struct wil6210_mbox_hdr_wmi wmi; 843 struct wmi_pcp_started_event evt; 844 } __packed reply; 845 846 if (!wil->privacy) 847 cmd.disable_sec = 1; 848 849 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 850 (cmd.pcp_max_assoc_sta <= 0)) { 851 wil_info(wil, 852 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 853 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 854 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 855 } 856 857 /* 858 * Processing time may be huge, in case of secure AP it takes about 859 * 3500ms for FW to start AP 860 */ 861 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 862 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 863 if (rc) 864 return rc; 865 866 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 867 rc = -EINVAL; 868 869 return rc; 870 } 871 872 int wmi_pcp_stop(struct wil6210_priv *wil) 873 { 874 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 875 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 876 } 877 878 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 879 { 880 struct wmi_set_ssid_cmd cmd = { 881 .ssid_len = cpu_to_le32(ssid_len), 882 }; 883 884 if (ssid_len > sizeof(cmd.ssid)) 885 return -EINVAL; 886 887 memcpy(cmd.ssid, ssid, ssid_len); 888 889 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 890 } 891 892 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 893 { 894 int rc; 895 struct { 896 struct wil6210_mbox_hdr_wmi wmi; 897 struct wmi_set_ssid_cmd cmd; 898 } __packed reply; 899 int len; /* reply.cmd.ssid_len in CPU order */ 900 901 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 902 &reply, sizeof(reply), 20); 903 if (rc) 904 return rc; 905 906 len = le32_to_cpu(reply.cmd.ssid_len); 907 if (len > sizeof(reply.cmd.ssid)) 908 return -EINVAL; 909 910 *ssid_len = len; 911 memcpy(ssid, reply.cmd.ssid, len); 912 913 return 0; 914 } 915 916 int wmi_set_channel(struct wil6210_priv *wil, int channel) 917 { 918 struct wmi_set_pcp_channel_cmd cmd = { 919 .channel = channel - 1, 920 }; 921 922 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 923 } 924 925 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 926 { 927 int rc; 928 struct { 929 struct wil6210_mbox_hdr_wmi wmi; 930 struct wmi_set_pcp_channel_cmd cmd; 931 } __packed reply; 932 933 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 934 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 935 if (rc) 936 return rc; 937 938 if (reply.cmd.channel > 3) 939 return -EINVAL; 940 941 *channel = reply.cmd.channel + 1; 942 943 return 0; 944 } 945 946 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel) 947 { 948 struct wmi_p2p_cfg_cmd cmd = { 949 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD, 950 .channel = channel - 1, 951 }; 952 953 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd)); 954 } 955 956 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 957 const void *mac_addr, int key_usage) 958 { 959 struct wmi_delete_cipher_key_cmd cmd = { 960 .key_index = key_index, 961 }; 962 963 if (mac_addr) 964 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 965 966 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 967 } 968 969 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 970 const void *mac_addr, int key_len, const void *key, 971 int key_usage) 972 { 973 struct wmi_add_cipher_key_cmd cmd = { 974 .key_index = key_index, 975 .key_usage = key_usage, 976 .key_len = key_len, 977 }; 978 979 if (!key || (key_len > sizeof(cmd.key))) 980 return -EINVAL; 981 982 memcpy(cmd.key, key, key_len); 983 if (mac_addr) 984 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 985 986 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 987 } 988 989 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 990 { 991 int rc; 992 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 993 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 994 995 if (!cmd) 996 return -ENOMEM; 997 if (!ie) 998 ie_len = 0; 999 1000 cmd->mgmt_frm_type = type; 1001 /* BUG: FW API define ieLen as u8. Will fix FW */ 1002 cmd->ie_len = cpu_to_le16(ie_len); 1003 memcpy(cmd->ie_info, ie, ie_len); 1004 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1005 kfree(cmd); 1006 1007 return rc; 1008 } 1009 1010 /** 1011 * wmi_rxon - turn radio on/off 1012 * @on: turn on if true, off otherwise 1013 * 1014 * Only switch radio. Channel should be set separately. 1015 * No timeout for rxon - radio turned on forever unless some other call 1016 * turns it off 1017 */ 1018 int wmi_rxon(struct wil6210_priv *wil, bool on) 1019 { 1020 int rc; 1021 struct { 1022 struct wil6210_mbox_hdr_wmi wmi; 1023 struct wmi_listen_started_event evt; 1024 } __packed reply; 1025 1026 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1027 1028 if (on) { 1029 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1030 WMI_LISTEN_STARTED_EVENTID, 1031 &reply, sizeof(reply), 100); 1032 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1033 rc = -EINVAL; 1034 } else { 1035 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1036 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1037 } 1038 1039 return rc; 1040 } 1041 1042 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1043 { 1044 struct wireless_dev *wdev = wil->wdev; 1045 struct net_device *ndev = wil_to_ndev(wil); 1046 struct wmi_cfg_rx_chain_cmd cmd = { 1047 .action = WMI_RX_CHAIN_ADD, 1048 .rx_sw_ring = { 1049 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1050 .ring_mem_base = cpu_to_le64(vring->pa), 1051 .ring_size = cpu_to_le16(vring->size), 1052 }, 1053 .mid = 0, /* TODO - what is it? */ 1054 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1055 .reorder_type = WMI_RX_SW_REORDER, 1056 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1057 }; 1058 struct { 1059 struct wil6210_mbox_hdr_wmi wmi; 1060 struct wmi_cfg_rx_chain_done_event evt; 1061 } __packed evt; 1062 int rc; 1063 1064 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1065 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1066 1067 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1068 if (ch) 1069 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1070 cmd.sniffer_cfg.phy_info_mode = 1071 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1072 cmd.sniffer_cfg.phy_support = 1073 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1074 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP); 1075 } else { 1076 /* Initialize offload (in non-sniffer mode). 1077 * Linux IP stack always calculates IP checksum 1078 * HW always calculate TCP/UDP checksum 1079 */ 1080 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1081 } 1082 1083 if (rx_align_2) 1084 cmd.l2_802_3_offload_ctrl |= 1085 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1086 1087 /* typical time for secure PCP is 840ms */ 1088 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1089 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1090 if (rc) 1091 return rc; 1092 1093 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1094 1095 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1096 le32_to_cpu(evt.evt.status), vring->hwtail); 1097 1098 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1099 rc = -EINVAL; 1100 1101 return rc; 1102 } 1103 1104 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1105 { 1106 int rc; 1107 struct wmi_temp_sense_cmd cmd = { 1108 .measure_baseband_en = cpu_to_le32(!!t_bb), 1109 .measure_rf_en = cpu_to_le32(!!t_rf), 1110 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1111 }; 1112 struct { 1113 struct wil6210_mbox_hdr_wmi wmi; 1114 struct wmi_temp_sense_done_event evt; 1115 } __packed reply; 1116 1117 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1118 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1119 if (rc) 1120 return rc; 1121 1122 if (t_bb) 1123 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1124 if (t_rf) 1125 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1126 1127 return 0; 1128 } 1129 1130 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason) 1131 { 1132 struct wmi_disconnect_sta_cmd cmd = { 1133 .disconnect_reason = cpu_to_le16(reason), 1134 }; 1135 1136 ether_addr_copy(cmd.dst_mac, mac); 1137 1138 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1139 1140 return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd)); 1141 } 1142 1143 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1144 { 1145 struct wmi_vring_ba_en_cmd cmd = { 1146 .ringid = ringid, 1147 .agg_max_wsize = size, 1148 .ba_timeout = cpu_to_le16(timeout), 1149 .amsdu = 0, 1150 }; 1151 1152 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1153 ringid, size, timeout); 1154 1155 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1156 } 1157 1158 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1159 { 1160 struct wmi_vring_ba_dis_cmd cmd = { 1161 .ringid = ringid, 1162 .reason = cpu_to_le16(reason), 1163 }; 1164 1165 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1166 ringid, reason); 1167 1168 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1169 } 1170 1171 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1172 { 1173 struct wmi_rcp_delba_cmd cmd = { 1174 .cidxtid = cidxtid, 1175 .reason = cpu_to_le16(reason), 1176 }; 1177 1178 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1179 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1180 1181 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1182 } 1183 1184 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1185 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1186 { 1187 int rc; 1188 struct wmi_rcp_addba_resp_cmd cmd = { 1189 .cidxtid = mk_cidxtid(cid, tid), 1190 .dialog_token = token, 1191 .status_code = cpu_to_le16(status), 1192 /* bit 0: A-MSDU supported 1193 * bit 1: policy (should be 0 for us) 1194 * bits 2..5: TID 1195 * bits 6..15: buffer size 1196 */ 1197 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1198 (agg_wsize << 6)), 1199 .ba_timeout = cpu_to_le16(timeout), 1200 }; 1201 struct { 1202 struct wil6210_mbox_hdr_wmi wmi; 1203 struct wmi_rcp_addba_resp_sent_event evt; 1204 } __packed reply; 1205 1206 wil_dbg_wmi(wil, 1207 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1208 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1209 1210 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1211 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1212 100); 1213 if (rc) 1214 return rc; 1215 1216 if (reply.evt.status) { 1217 wil_err(wil, "ADDBA response failed with status %d\n", 1218 le16_to_cpu(reply.evt.status)); 1219 rc = -EINVAL; 1220 } 1221 1222 return rc; 1223 } 1224 1225 void wmi_event_flush(struct wil6210_priv *wil) 1226 { 1227 struct pending_wmi_event *evt, *t; 1228 1229 wil_dbg_wmi(wil, "%s()\n", __func__); 1230 1231 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1232 list_del(&evt->list); 1233 kfree(evt); 1234 } 1235 } 1236 1237 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1238 void *d, int len) 1239 { 1240 uint i; 1241 1242 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1243 if (wmi_evt_handlers[i].eventid == id) { 1244 wmi_evt_handlers[i].handler(wil, id, d, len); 1245 return true; 1246 } 1247 } 1248 1249 return false; 1250 } 1251 1252 static void wmi_event_handle(struct wil6210_priv *wil, 1253 struct wil6210_mbox_hdr *hdr) 1254 { 1255 u16 len = le16_to_cpu(hdr->len); 1256 1257 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1258 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 1259 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); 1260 void *evt_data = (void *)(&wmi[1]); 1261 u16 id = le16_to_cpu(wmi->id); 1262 1263 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1264 id, wil->reply_id); 1265 /* check if someone waits for this event */ 1266 if (wil->reply_id && wil->reply_id == id) { 1267 if (wil->reply_buf) { 1268 memcpy(wil->reply_buf, wmi, 1269 min(len, wil->reply_size)); 1270 } else { 1271 wmi_evt_call_handler(wil, id, evt_data, 1272 len - sizeof(*wmi)); 1273 } 1274 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id); 1275 complete(&wil->wmi_call); 1276 return; 1277 } 1278 /* unsolicited event */ 1279 /* search for handler */ 1280 if (!wmi_evt_call_handler(wil, id, evt_data, 1281 len - sizeof(*wmi))) { 1282 wil_err(wil, "Unhandled event 0x%04x\n", id); 1283 } 1284 } else { 1285 wil_err(wil, "Unknown event type\n"); 1286 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1287 hdr, sizeof(*hdr) + len, true); 1288 } 1289 } 1290 1291 /* 1292 * Retrieve next WMI event from the pending list 1293 */ 1294 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1295 { 1296 ulong flags; 1297 struct list_head *ret = NULL; 1298 1299 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1300 1301 if (!list_empty(&wil->pending_wmi_ev)) { 1302 ret = wil->pending_wmi_ev.next; 1303 list_del(ret); 1304 } 1305 1306 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1307 1308 return ret; 1309 } 1310 1311 /* 1312 * Handler for the WMI events 1313 */ 1314 void wmi_event_worker(struct work_struct *work) 1315 { 1316 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1317 wmi_event_worker); 1318 struct pending_wmi_event *evt; 1319 struct list_head *lh; 1320 1321 wil_dbg_wmi(wil, "Start %s\n", __func__); 1322 while ((lh = next_wmi_ev(wil)) != NULL) { 1323 evt = list_entry(lh, struct pending_wmi_event, list); 1324 wmi_event_handle(wil, &evt->event.hdr); 1325 kfree(evt); 1326 } 1327 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1328 } 1329