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 26static uint max_assoc_sta = WIL6210_MAX_CID; 27module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR); 28MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP"); 29 30int agg_wsize; /* = 0; */ 31module_param(agg_wsize, int, S_IRUGO | S_IWUSR); 32MODULE_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 */ 81const 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 */ 101static 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 */ 122void __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 */ 144void __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 161int 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 174static 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 270int 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 ===*/ 282static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 283{ 284 struct wireless_dev *wdev = wil->wdev; 285 struct wmi_ready_event *evt = d; 286 287 wil->fw_version = le32_to_cpu(evt->sw_version); 288 wil->n_mids = evt->numof_additional_mids; 289 290 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version, 291 evt->mac, wil->n_mids); 292 /* ignore MAC address, we already have it from the boot loader */ 293 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), 294 "%d", wil->fw_version); 295} 296 297static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d, 298 int len) 299{ 300 wil_dbg_wmi(wil, "WMI: got FW ready event\n"); 301 302 wil_set_recovery_state(wil, fw_recovery_idle); 303 set_bit(wil_status_fwready, wil->status); 304 /* let the reset sequence continue */ 305 complete(&wil->wmi_ready); 306} 307 308static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 309{ 310 struct wmi_rx_mgmt_packet_event *data = d; 311 struct wiphy *wiphy = wil_to_wiphy(wil); 312 struct ieee80211_mgmt *rx_mgmt_frame = 313 (struct ieee80211_mgmt *)data->payload; 314 int ch_no = data->info.channel+1; 315 u32 freq = ieee80211_channel_to_frequency(ch_no, 316 IEEE80211_BAND_60GHZ); 317 struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq); 318 s32 signal = data->info.sqi; 319 __le16 fc = rx_mgmt_frame->frame_control; 320 u32 d_len = le32_to_cpu(data->info.len); 321 u16 d_status = le16_to_cpu(data->info.status); 322 323 wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n", 324 data->info.channel, data->info.mcs, data->info.snr, 325 data->info.sqi); 326 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 327 le16_to_cpu(fc)); 328 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 329 data->info.qid, data->info.mid, data->info.cid); 330 331 if (!channel) { 332 wil_err(wil, "Frame on unsupported channel\n"); 333 return; 334 } 335 336 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 337 struct cfg80211_bss *bss; 338 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 339 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 340 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 341 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 342 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 343 u.beacon.variable); 344 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 345 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 346 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 347 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 348 ie_len, true); 349 350 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 351 d_len, signal, GFP_KERNEL); 352 if (bss) { 353 wil_dbg_wmi(wil, "Added BSS %pM\n", 354 rx_mgmt_frame->bssid); 355 cfg80211_put_bss(wiphy, bss); 356 } else { 357 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 358 } 359 } else { 360 cfg80211_rx_mgmt(wil->wdev, freq, signal, 361 (void *)rx_mgmt_frame, d_len, 0); 362 } 363} 364 365static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 366 void *d, int len) 367{ 368 if (wil->scan_request) { 369 struct wmi_scan_complete_event *data = d; 370 bool aborted = (data->status != WMI_SCAN_SUCCESS); 371 372 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 373 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 374 wil->scan_request, aborted); 375 376 del_timer_sync(&wil->scan_timer); 377 cfg80211_scan_done(wil->scan_request, aborted); 378 wil->scan_request = NULL; 379 } else { 380 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 381 } 382} 383 384static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 385{ 386 struct net_device *ndev = wil_to_ndev(wil); 387 struct wireless_dev *wdev = wil->wdev; 388 struct wmi_connect_event *evt = d; 389 int ch; /* channel number */ 390 struct station_info sinfo; 391 u8 *assoc_req_ie, *assoc_resp_ie; 392 size_t assoc_req_ielen, assoc_resp_ielen; 393 /* capinfo(u16) + listen_interval(u16) + IEs */ 394 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 395 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 396 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 397 398 if (len < sizeof(*evt)) { 399 wil_err(wil, "Connect event too short : %d bytes\n", len); 400 return; 401 } 402 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 403 evt->assoc_resp_len) { 404 wil_err(wil, 405 "Connect event corrupted : %d != %d + %d + %d + %d\n", 406 len, (int)sizeof(*evt), evt->beacon_ie_len, 407 evt->assoc_req_len, evt->assoc_resp_len); 408 return; 409 } 410 if (evt->cid >= WIL6210_MAX_CID) { 411 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 412 return; 413 } 414 415 ch = evt->channel + 1; 416 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n", 417 evt->bssid, ch, evt->cid); 418 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 419 evt->assoc_info, len - sizeof(*evt), true); 420 421 /* figure out IE's */ 422 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 423 assoc_req_ie_offset]; 424 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 425 if (evt->assoc_req_len <= assoc_req_ie_offset) { 426 assoc_req_ie = NULL; 427 assoc_req_ielen = 0; 428 } 429 430 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 431 evt->assoc_req_len + 432 assoc_resp_ie_offset]; 433 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 434 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 435 assoc_resp_ie = NULL; 436 assoc_resp_ielen = 0; 437 } 438 439 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 440 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 441 if (!test_bit(wil_status_fwconnecting, wil->status)) { 442 wil_err(wil, "Not in connecting state\n"); 443 return; 444 } 445 del_timer_sync(&wil->connect_timer); 446 cfg80211_connect_result(ndev, evt->bssid, 447 assoc_req_ie, assoc_req_ielen, 448 assoc_resp_ie, assoc_resp_ielen, 449 WLAN_STATUS_SUCCESS, GFP_KERNEL); 450 451 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 452 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 453 memset(&sinfo, 0, sizeof(sinfo)); 454 455 sinfo.generation = wil->sinfo_gen++; 456 457 if (assoc_req_ie) { 458 sinfo.assoc_req_ies = assoc_req_ie; 459 sinfo.assoc_req_ies_len = assoc_req_ielen; 460 } 461 462 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 463 } 464 clear_bit(wil_status_fwconnecting, wil->status); 465 set_bit(wil_status_fwconnected, wil->status); 466 467 /* FIXME FW can transmit only ucast frames to peer */ 468 /* FIXME real ring_id instead of hard coded 0 */ 469 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 470 wil->sta[evt->cid].status = wil_sta_conn_pending; 471 472 wil->pending_connect_cid = evt->cid; 473 queue_work(wil->wq_service, &wil->connect_worker); 474} 475 476static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 477 void *d, int len) 478{ 479 struct wmi_disconnect_event *evt = d; 480 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 481 482 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 483 evt->bssid, reason_code, evt->disconnect_reason); 484 485 wil->sinfo_gen++; 486 487 mutex_lock(&wil->mutex); 488 wil6210_disconnect(wil, evt->bssid, reason_code, true); 489 mutex_unlock(&wil->mutex); 490} 491 492/* 493 * Firmware reports EAPOL frame using WME event. 494 * Reconstruct Ethernet frame and deliver it via normal Rx 495 */ 496static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 497 void *d, int len) 498{ 499 struct net_device *ndev = wil_to_ndev(wil); 500 struct wmi_eapol_rx_event *evt = d; 501 u16 eapol_len = le16_to_cpu(evt->eapol_len); 502 int sz = eapol_len + ETH_HLEN; 503 struct sk_buff *skb; 504 struct ethhdr *eth; 505 int cid; 506 struct wil_net_stats *stats = NULL; 507 508 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 509 evt->src_mac); 510 511 cid = wil_find_cid(wil, evt->src_mac); 512 if (cid >= 0) 513 stats = &wil->sta[cid].stats; 514 515 if (eapol_len > 196) { /* TODO: revisit size limit */ 516 wil_err(wil, "EAPOL too large\n"); 517 return; 518 } 519 520 skb = alloc_skb(sz, GFP_KERNEL); 521 if (!skb) { 522 wil_err(wil, "Failed to allocate skb\n"); 523 return; 524 } 525 526 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 527 ether_addr_copy(eth->h_dest, ndev->dev_addr); 528 ether_addr_copy(eth->h_source, evt->src_mac); 529 eth->h_proto = cpu_to_be16(ETH_P_PAE); 530 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 531 skb->protocol = eth_type_trans(skb, ndev); 532 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 533 ndev->stats.rx_packets++; 534 ndev->stats.rx_bytes += sz; 535 if (stats) { 536 stats->rx_packets++; 537 stats->rx_bytes += sz; 538 } 539 } else { 540 ndev->stats.rx_dropped++; 541 if (stats) 542 stats->rx_dropped++; 543 } 544} 545 546static void wil_addba_tx_cid(struct wil6210_priv *wil, u8 cid, u16 wsize) 547{ 548 struct vring_tx_data *t; 549 int i; 550 551 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 552 if (cid != wil->vring2cid_tid[i][0]) 553 continue; 554 t = &wil->vring_tx_data[i]; 555 if (!t->enabled) 556 continue; 557 558 wil_addba_tx_request(wil, i, wsize); 559 } 560} 561 562static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len) 563{ 564 struct wmi_data_port_open_event *evt = d; 565 u8 cid = evt->cid; 566 567 wil_dbg_wmi(wil, "Link UP for CID %d\n", cid); 568 569 if (cid >= ARRAY_SIZE(wil->sta)) { 570 wil_err(wil, "Link UP for invalid CID %d\n", cid); 571 return; 572 } 573 574 wil->sta[cid].data_port_open = true; 575 if (agg_wsize >= 0) 576 wil_addba_tx_cid(wil, cid, agg_wsize); 577} 578 579static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len) 580{ 581 struct net_device *ndev = wil_to_ndev(wil); 582 struct wmi_wbe_link_down_event *evt = d; 583 u8 cid = evt->cid; 584 585 wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n", 586 cid, le32_to_cpu(evt->reason)); 587 588 if (cid >= ARRAY_SIZE(wil->sta)) { 589 wil_err(wil, "Link DOWN for invalid CID %d\n", cid); 590 return; 591 } 592 593 wil->sta[cid].data_port_open = false; 594 netif_carrier_off(ndev); 595} 596 597static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 598 int len) 599{ 600 struct wmi_vring_ba_status_event *evt = d; 601 struct vring_tx_data *txdata; 602 603 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 604 evt->ringid, 605 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 606 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 607 evt->amsdu ? "+" : "-"); 608 609 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 610 wil_err(wil, "invalid ring id %d\n", evt->ringid); 611 return; 612 } 613 614 if (evt->status != WMI_BA_AGREED) { 615 evt->ba_timeout = 0; 616 evt->agg_wsize = 0; 617 evt->amsdu = 0; 618 } 619 620 txdata = &wil->vring_tx_data[evt->ringid]; 621 622 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 623 txdata->agg_wsize = evt->agg_wsize; 624 txdata->agg_amsdu = evt->amsdu; 625 txdata->addba_in_progress = false; 626} 627 628static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 629 int len) 630{ 631 struct wmi_rcp_addba_req_event *evt = d; 632 633 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 634 evt->ba_param_set, evt->ba_timeout, 635 evt->ba_seq_ctrl); 636} 637 638static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 639__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 640{ 641 struct wmi_delba_event *evt = d; 642 u8 cid, tid; 643 u16 reason = __le16_to_cpu(evt->reason); 644 struct wil_sta_info *sta; 645 struct wil_tid_ampdu_rx *r; 646 647 might_sleep(); 648 parse_cidxtid(evt->cidxtid, &cid, &tid); 649 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 650 cid, tid, 651 evt->from_initiator ? "originator" : "recipient", 652 reason); 653 if (!evt->from_initiator) { 654 int i; 655 /* find Tx vring it belongs to */ 656 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 657 if ((wil->vring2cid_tid[i][0] == cid) && 658 (wil->vring2cid_tid[i][1] == tid)) { 659 struct vring_tx_data *txdata = 660 &wil->vring_tx_data[i]; 661 662 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 663 txdata->agg_timeout = 0; 664 txdata->agg_wsize = 0; 665 txdata->addba_in_progress = false; 666 667 break; /* max. 1 matching ring */ 668 } 669 } 670 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 671 wil_err(wil, "DELBA: unable to find Tx vring\n"); 672 return; 673 } 674 675 sta = &wil->sta[cid]; 676 677 spin_lock_bh(&sta->tid_rx_lock); 678 679 r = sta->tid_rx[tid]; 680 sta->tid_rx[tid] = NULL; 681 wil_tid_ampdu_rx_free(wil, r); 682 683 spin_unlock_bh(&sta->tid_rx_lock); 684} 685 686static const struct { 687 int eventid; 688 void (*handler)(struct wil6210_priv *wil, int eventid, 689 void *data, int data_len); 690} wmi_evt_handlers[] = { 691 {WMI_READY_EVENTID, wmi_evt_ready}, 692 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready}, 693 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 694 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 695 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 696 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 697 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 698 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup}, 699 {WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown}, 700 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 701 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 702 {WMI_DELBA_EVENTID, wmi_evt_delba}, 703}; 704 705/* 706 * Run in IRQ context 707 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 708 * that will be eventually handled by the @wmi_event_worker in the thread 709 * context of thread "wil6210_wmi" 710 */ 711void wmi_recv_cmd(struct wil6210_priv *wil) 712{ 713 struct wil6210_mbox_ring_desc d_tail; 714 struct wil6210_mbox_hdr hdr; 715 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 716 struct pending_wmi_event *evt; 717 u8 *cmd; 718 void __iomem *src; 719 ulong flags; 720 unsigned n; 721 722 if (!test_bit(wil_status_reset_done, wil->status)) { 723 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 724 return; 725 } 726 727 for (n = 0;; n++) { 728 u16 len; 729 bool q; 730 731 r->head = ioread32(wil->csr + HOST_MBOX + 732 offsetof(struct wil6210_mbox_ctl, rx.head)); 733 if (r->tail == r->head) 734 break; 735 736 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 737 r->head, r->tail); 738 /* read cmd descriptor from tail */ 739 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 740 sizeof(struct wil6210_mbox_ring_desc)); 741 if (d_tail.sync == 0) { 742 wil_err(wil, "Mbox evt not owned by FW?\n"); 743 break; 744 } 745 746 /* read cmd header from descriptor */ 747 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 748 wil_err(wil, "Mbox evt at 0x%08x?\n", 749 le32_to_cpu(d_tail.addr)); 750 break; 751 } 752 len = le16_to_cpu(hdr.len); 753 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 754 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 755 hdr.flags); 756 757 /* read cmd buffer from descriptor */ 758 src = wmi_buffer(wil, d_tail.addr) + 759 sizeof(struct wil6210_mbox_hdr); 760 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 761 event.wmi) + len, 4), 762 GFP_KERNEL); 763 if (!evt) 764 break; 765 766 evt->event.hdr = hdr; 767 cmd = (void *)&evt->event.wmi; 768 wil_memcpy_fromio_32(cmd, src, len); 769 /* mark entry as empty */ 770 iowrite32(0, wil->csr + HOSTADDR(r->tail) + 771 offsetof(struct wil6210_mbox_ring_desc, sync)); 772 /* indicate */ 773 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 774 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 775 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi; 776 u16 id = le16_to_cpu(wmi->id); 777 u32 tstamp = le32_to_cpu(wmi->timestamp); 778 779 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 780 id, wmi->mid, tstamp); 781 trace_wil6210_wmi_event(wmi, &wmi[1], 782 len - sizeof(*wmi)); 783 } 784 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 785 &evt->event.hdr, sizeof(hdr) + len, true); 786 787 /* advance tail */ 788 r->tail = r->base + ((r->tail - r->base + 789 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 790 iowrite32(r->tail, wil->csr + HOST_MBOX + 791 offsetof(struct wil6210_mbox_ctl, rx.tail)); 792 793 /* add to the pending list */ 794 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 795 list_add_tail(&evt->list, &wil->pending_wmi_ev); 796 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 797 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 798 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 799 } 800 /* normally, 1 event per IRQ should be processed */ 801 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n); 802} 803 804int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 805 u16 reply_id, void *reply, u8 reply_size, int to_msec) 806{ 807 int rc; 808 int remain; 809 810 mutex_lock(&wil->wmi_mutex); 811 812 rc = __wmi_send(wil, cmdid, buf, len); 813 if (rc) 814 goto out; 815 816 wil->reply_id = reply_id; 817 wil->reply_buf = reply; 818 wil->reply_size = reply_size; 819 remain = wait_for_completion_timeout(&wil->wmi_call, 820 msecs_to_jiffies(to_msec)); 821 if (0 == remain) { 822 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 823 cmdid, reply_id, to_msec); 824 rc = -ETIME; 825 } else { 826 wil_dbg_wmi(wil, 827 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 828 cmdid, reply_id, 829 to_msec - jiffies_to_msecs(remain)); 830 } 831 wil->reply_id = 0; 832 wil->reply_buf = NULL; 833 wil->reply_size = 0; 834 out: 835 mutex_unlock(&wil->wmi_mutex); 836 837 return rc; 838} 839 840int wmi_echo(struct wil6210_priv *wil) 841{ 842 struct wmi_echo_cmd cmd = { 843 .value = cpu_to_le32(0x12345678), 844 }; 845 846 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 847 WMI_ECHO_RSP_EVENTID, NULL, 0, 20); 848} 849 850int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 851{ 852 struct wmi_set_mac_address_cmd cmd; 853 854 ether_addr_copy(cmd.mac, addr); 855 856 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 857 858 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 859} 860 861int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan) 862{ 863 int rc; 864 865 struct wmi_pcp_start_cmd cmd = { 866 .bcon_interval = cpu_to_le16(bi), 867 .network_type = wmi_nettype, 868 .disable_sec_offload = 1, 869 .channel = chan - 1, 870 .pcp_max_assoc_sta = max_assoc_sta, 871 }; 872 struct { 873 struct wil6210_mbox_hdr_wmi wmi; 874 struct wmi_pcp_started_event evt; 875 } __packed reply; 876 877 if (!wil->privacy) 878 cmd.disable_sec = 1; 879 880 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 881 (cmd.pcp_max_assoc_sta <= 0)) { 882 wil_info(wil, 883 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 884 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 885 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 886 } 887 888 /* 889 * Processing time may be huge, in case of secure AP it takes about 890 * 3500ms for FW to start AP 891 */ 892 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 893 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 894 if (rc) 895 return rc; 896 897 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 898 rc = -EINVAL; 899 900 return rc; 901} 902 903int wmi_pcp_stop(struct wil6210_priv *wil) 904{ 905 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 906 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 907} 908 909int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 910{ 911 struct wmi_set_ssid_cmd cmd = { 912 .ssid_len = cpu_to_le32(ssid_len), 913 }; 914 915 if (ssid_len > sizeof(cmd.ssid)) 916 return -EINVAL; 917 918 memcpy(cmd.ssid, ssid, ssid_len); 919 920 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 921} 922 923int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 924{ 925 int rc; 926 struct { 927 struct wil6210_mbox_hdr_wmi wmi; 928 struct wmi_set_ssid_cmd cmd; 929 } __packed reply; 930 int len; /* reply.cmd.ssid_len in CPU order */ 931 932 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 933 &reply, sizeof(reply), 20); 934 if (rc) 935 return rc; 936 937 len = le32_to_cpu(reply.cmd.ssid_len); 938 if (len > sizeof(reply.cmd.ssid)) 939 return -EINVAL; 940 941 *ssid_len = len; 942 memcpy(ssid, reply.cmd.ssid, len); 943 944 return 0; 945} 946 947int wmi_set_channel(struct wil6210_priv *wil, int channel) 948{ 949 struct wmi_set_pcp_channel_cmd cmd = { 950 .channel = channel - 1, 951 }; 952 953 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 954} 955 956int wmi_get_channel(struct wil6210_priv *wil, int *channel) 957{ 958 int rc; 959 struct { 960 struct wil6210_mbox_hdr_wmi wmi; 961 struct wmi_set_pcp_channel_cmd cmd; 962 } __packed reply; 963 964 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 965 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 966 if (rc) 967 return rc; 968 969 if (reply.cmd.channel > 3) 970 return -EINVAL; 971 972 *channel = reply.cmd.channel + 1; 973 974 return 0; 975} 976 977int wmi_p2p_cfg(struct wil6210_priv *wil, int channel) 978{ 979 struct wmi_p2p_cfg_cmd cmd = { 980 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD, 981 .channel = channel - 1, 982 }; 983 984 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd)); 985} 986 987int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 988 const void *mac_addr) 989{ 990 struct wmi_delete_cipher_key_cmd cmd = { 991 .key_index = key_index, 992 }; 993 994 if (mac_addr) 995 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 996 997 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 998} 999 1000int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1001 const void *mac_addr, int key_len, const void *key) 1002{ 1003 struct wmi_add_cipher_key_cmd cmd = { 1004 .key_index = key_index, 1005 .key_usage = WMI_KEY_USE_PAIRWISE, 1006 .key_len = key_len, 1007 }; 1008 1009 if (!key || (key_len > sizeof(cmd.key))) 1010 return -EINVAL; 1011 1012 memcpy(cmd.key, key, key_len); 1013 if (mac_addr) 1014 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1015 1016 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1017} 1018 1019int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1020{ 1021 int rc; 1022 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1023 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1024 1025 if (!cmd) 1026 return -ENOMEM; 1027 if (!ie) 1028 ie_len = 0; 1029 1030 cmd->mgmt_frm_type = type; 1031 /* BUG: FW API define ieLen as u8. Will fix FW */ 1032 cmd->ie_len = cpu_to_le16(ie_len); 1033 memcpy(cmd->ie_info, ie, ie_len); 1034 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1035 kfree(cmd); 1036 1037 return rc; 1038} 1039 1040/** 1041 * wmi_rxon - turn radio on/off 1042 * @on: turn on if true, off otherwise 1043 * 1044 * Only switch radio. Channel should be set separately. 1045 * No timeout for rxon - radio turned on forever unless some other call 1046 * turns it off 1047 */ 1048int wmi_rxon(struct wil6210_priv *wil, bool on) 1049{ 1050 int rc; 1051 struct { 1052 struct wil6210_mbox_hdr_wmi wmi; 1053 struct wmi_listen_started_event evt; 1054 } __packed reply; 1055 1056 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1057 1058 if (on) { 1059 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1060 WMI_LISTEN_STARTED_EVENTID, 1061 &reply, sizeof(reply), 100); 1062 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1063 rc = -EINVAL; 1064 } else { 1065 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1066 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1067 } 1068 1069 return rc; 1070} 1071 1072int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1073{ 1074 struct wireless_dev *wdev = wil->wdev; 1075 struct net_device *ndev = wil_to_ndev(wil); 1076 struct wmi_cfg_rx_chain_cmd cmd = { 1077 .action = WMI_RX_CHAIN_ADD, 1078 .rx_sw_ring = { 1079 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1080 .ring_mem_base = cpu_to_le64(vring->pa), 1081 .ring_size = cpu_to_le16(vring->size), 1082 }, 1083 .mid = 0, /* TODO - what is it? */ 1084 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1085 .reorder_type = WMI_RX_SW_REORDER, 1086 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1087 }; 1088 struct { 1089 struct wil6210_mbox_hdr_wmi wmi; 1090 struct wmi_cfg_rx_chain_done_event evt; 1091 } __packed evt; 1092 int rc; 1093 1094 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1095 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1096 1097 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1098 if (ch) 1099 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1100 cmd.sniffer_cfg.phy_info_mode = 1101 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1102 cmd.sniffer_cfg.phy_support = 1103 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1104 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP); 1105 } else { 1106 /* Initialize offload (in non-sniffer mode). 1107 * Linux IP stack always calculates IP checksum 1108 * HW always calculate TCP/UDP checksum 1109 */ 1110 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1111 } 1112 1113 if (rx_align_2) 1114 cmd.l2_802_3_offload_ctrl |= 1115 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 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 1134int 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 1160int 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 1166 ether_addr_copy(cmd.dst_mac, mac); 1167 1168 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1169 1170 return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd)); 1171} 1172 1173int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1174{ 1175 struct wmi_vring_ba_en_cmd cmd = { 1176 .ringid = ringid, 1177 .agg_max_wsize = size, 1178 .ba_timeout = cpu_to_le16(timeout), 1179 .amsdu = 0, 1180 }; 1181 1182 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1183 ringid, size, timeout); 1184 1185 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1186} 1187 1188int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1189{ 1190 struct wmi_vring_ba_dis_cmd cmd = { 1191 .ringid = ringid, 1192 .reason = cpu_to_le16(reason), 1193 }; 1194 1195 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1196 ringid, reason); 1197 1198 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1199} 1200 1201int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1202{ 1203 struct wmi_rcp_delba_cmd cmd = { 1204 .cidxtid = cidxtid, 1205 .reason = cpu_to_le16(reason), 1206 }; 1207 1208 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1209 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1210 1211 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1212} 1213 1214int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1215 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1216{ 1217 int rc; 1218 struct wmi_rcp_addba_resp_cmd cmd = { 1219 .cidxtid = mk_cidxtid(cid, tid), 1220 .dialog_token = token, 1221 .status_code = cpu_to_le16(status), 1222 /* bit 0: A-MSDU supported 1223 * bit 1: policy (should be 0 for us) 1224 * bits 2..5: TID 1225 * bits 6..15: buffer size 1226 */ 1227 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1228 (agg_wsize << 6)), 1229 .ba_timeout = cpu_to_le16(timeout), 1230 }; 1231 struct { 1232 struct wil6210_mbox_hdr_wmi wmi; 1233 struct wmi_rcp_addba_resp_sent_event evt; 1234 } __packed reply; 1235 1236 wil_dbg_wmi(wil, 1237 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1238 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1239 1240 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1241 WMI_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 100); 1242 if (rc) 1243 return rc; 1244 1245 if (reply.evt.status) { 1246 wil_err(wil, "ADDBA response failed with status %d\n", 1247 le16_to_cpu(reply.evt.status)); 1248 rc = -EINVAL; 1249 } 1250 1251 return rc; 1252} 1253 1254void wmi_event_flush(struct wil6210_priv *wil) 1255{ 1256 struct pending_wmi_event *evt, *t; 1257 1258 wil_dbg_wmi(wil, "%s()\n", __func__); 1259 1260 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1261 list_del(&evt->list); 1262 kfree(evt); 1263 } 1264} 1265 1266static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1267 void *d, int len) 1268{ 1269 uint i; 1270 1271 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1272 if (wmi_evt_handlers[i].eventid == id) { 1273 wmi_evt_handlers[i].handler(wil, id, d, len); 1274 return true; 1275 } 1276 } 1277 1278 return false; 1279} 1280 1281static void wmi_event_handle(struct wil6210_priv *wil, 1282 struct wil6210_mbox_hdr *hdr) 1283{ 1284 u16 len = le16_to_cpu(hdr->len); 1285 1286 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1287 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 1288 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); 1289 void *evt_data = (void *)(&wmi[1]); 1290 u16 id = le16_to_cpu(wmi->id); 1291 1292 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1293 id, wil->reply_id); 1294 /* check if someone waits for this event */ 1295 if (wil->reply_id && wil->reply_id == id) { 1296 if (wil->reply_buf) { 1297 memcpy(wil->reply_buf, wmi, 1298 min(len, wil->reply_size)); 1299 } else { 1300 wmi_evt_call_handler(wil, id, evt_data, 1301 len - sizeof(*wmi)); 1302 } 1303 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id); 1304 complete(&wil->wmi_call); 1305 return; 1306 } 1307 /* unsolicited event */ 1308 /* search for handler */ 1309 if (!wmi_evt_call_handler(wil, id, evt_data, 1310 len - sizeof(*wmi))) { 1311 wil_err(wil, "Unhandled event 0x%04x\n", id); 1312 } 1313 } else { 1314 wil_err(wil, "Unknown event type\n"); 1315 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1316 hdr, sizeof(*hdr) + len, true); 1317 } 1318} 1319 1320/* 1321 * Retrieve next WMI event from the pending list 1322 */ 1323static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1324{ 1325 ulong flags; 1326 struct list_head *ret = NULL; 1327 1328 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1329 1330 if (!list_empty(&wil->pending_wmi_ev)) { 1331 ret = wil->pending_wmi_ev.next; 1332 list_del(ret); 1333 } 1334 1335 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1336 1337 return ret; 1338} 1339 1340/* 1341 * Handler for the WMI events 1342 */ 1343void wmi_event_worker(struct work_struct *work) 1344{ 1345 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1346 wmi_event_worker); 1347 struct pending_wmi_event *evt; 1348 struct list_head *lh; 1349 1350 wil_dbg_wmi(wil, "Start %s\n", __func__); 1351 while ((lh = next_wmi_ev(wil)) != NULL) { 1352 evt = list_entry(lh, struct pending_wmi_event, list); 1353 wmi_event_handle(wil, &evt->event.hdr); 1354 kfree(evt); 1355 } 1356 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1357} 1358