main.c revision f4bb9a6fbc1f49058fc9eb6dcb4a3022d99013b4
1/* 2 * Copyright (c) 2004-2011 Atheros Communications 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 "core.h" 18#include "hif-ops.h" 19#include "cfg80211.h" 20#include "target.h" 21#include "debug.h" 22 23struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr) 24{ 25 struct ath6kl *ar = vif->ar; 26 struct ath6kl_sta *conn = NULL; 27 u8 i, max_conn; 28 29 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; 30 31 for (i = 0; i < max_conn; i++) { 32 if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { 33 conn = &ar->sta_list[i]; 34 break; 35 } 36 } 37 38 return conn; 39} 40 41struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) 42{ 43 struct ath6kl_sta *conn = NULL; 44 u8 ctr; 45 46 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 47 if (ar->sta_list[ctr].aid == aid) { 48 conn = &ar->sta_list[ctr]; 49 break; 50 } 51 } 52 return conn; 53} 54 55static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie, 56 u8 ielen, u8 keymgmt, u8 ucipher, u8 auth) 57{ 58 struct ath6kl_sta *sta; 59 u8 free_slot; 60 61 free_slot = aid - 1; 62 63 sta = &ar->sta_list[free_slot]; 64 memcpy(sta->mac, mac, ETH_ALEN); 65 if (ielen <= ATH6KL_MAX_IE) 66 memcpy(sta->wpa_ie, wpaie, ielen); 67 sta->aid = aid; 68 sta->keymgmt = keymgmt; 69 sta->ucipher = ucipher; 70 sta->auth = auth; 71 72 ar->sta_list_index = ar->sta_list_index | (1 << free_slot); 73 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); 74} 75 76static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) 77{ 78 struct ath6kl_sta *sta = &ar->sta_list[i]; 79 80 /* empty the queued pkts in the PS queue if any */ 81 spin_lock_bh(&sta->psq_lock); 82 skb_queue_purge(&sta->psq); 83 spin_unlock_bh(&sta->psq_lock); 84 85 memset(&ar->ap_stats.sta[sta->aid - 1], 0, 86 sizeof(struct wmi_per_sta_stat)); 87 memset(sta->mac, 0, ETH_ALEN); 88 memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); 89 sta->aid = 0; 90 sta->sta_flags = 0; 91 92 ar->sta_list_index = ar->sta_list_index & ~(1 << i); 93 94} 95 96static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) 97{ 98 u8 i, removed = 0; 99 100 if (is_zero_ether_addr(mac)) 101 return removed; 102 103 if (is_broadcast_ether_addr(mac)) { 104 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); 105 106 for (i = 0; i < AP_MAX_NUM_STA; i++) { 107 if (!is_zero_ether_addr(ar->sta_list[i].mac)) { 108 ath6kl_sta_cleanup(ar, i); 109 removed = 1; 110 } 111 } 112 } else { 113 for (i = 0; i < AP_MAX_NUM_STA; i++) { 114 if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { 115 ath6kl_dbg(ATH6KL_DBG_TRC, 116 "deleting station %pM aid=%d reason=%d\n", 117 mac, ar->sta_list[i].aid, reason); 118 ath6kl_sta_cleanup(ar, i); 119 removed = 1; 120 break; 121 } 122 } 123 } 124 125 return removed; 126} 127 128enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) 129{ 130 struct ath6kl *ar = devt; 131 return ar->ac2ep_map[ac]; 132} 133 134struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) 135{ 136 struct ath6kl_cookie *cookie; 137 138 cookie = ar->cookie_list; 139 if (cookie != NULL) { 140 ar->cookie_list = cookie->arc_list_next; 141 ar->cookie_count--; 142 } 143 144 return cookie; 145} 146 147void ath6kl_cookie_init(struct ath6kl *ar) 148{ 149 u32 i; 150 151 ar->cookie_list = NULL; 152 ar->cookie_count = 0; 153 154 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); 155 156 for (i = 0; i < MAX_COOKIE_NUM; i++) 157 ath6kl_free_cookie(ar, &ar->cookie_mem[i]); 158} 159 160void ath6kl_cookie_cleanup(struct ath6kl *ar) 161{ 162 ar->cookie_list = NULL; 163 ar->cookie_count = 0; 164} 165 166void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) 167{ 168 /* Insert first */ 169 170 if (!ar || !cookie) 171 return; 172 173 cookie->arc_list_next = ar->cookie_list; 174 ar->cookie_list = cookie; 175 ar->cookie_count++; 176} 177 178/* set the window address register (using 4-byte register access ). */ 179static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) 180{ 181 int status; 182 s32 i; 183 __le32 addr_val; 184 185 /* 186 * Write bytes 1,2,3 of the register to set the upper address bytes, 187 * the LSB is written last to initiate the access cycle 188 */ 189 190 for (i = 1; i <= 3; i++) { 191 /* 192 * Fill the buffer with the address byte value we want to 193 * hit 4 times. No need to worry about endianness as the 194 * same byte is copied to all four bytes of addr_val at 195 * any time. 196 */ 197 memset((u8 *)&addr_val, ((u8 *)&addr)[i], 4); 198 199 /* 200 * Hit each byte of the register address with a 4-byte 201 * write operation to the same address, this is a harmless 202 * operation. 203 */ 204 status = hif_read_write_sync(ar, reg_addr + i, (u8 *)&addr_val, 205 4, HIF_WR_SYNC_BYTE_FIX); 206 if (status) 207 break; 208 } 209 210 if (status) { 211 ath6kl_err("failed to write initial bytes of 0x%x to window reg: 0x%X\n", 212 addr, reg_addr); 213 return status; 214 } 215 216 /* 217 * Write the address register again, this time write the whole 218 * 4-byte value. The effect here is that the LSB write causes the 219 * cycle to start, the extra 3 byte write to bytes 1,2,3 has no 220 * effect since we are writing the same values again 221 */ 222 addr_val = cpu_to_le32(addr); 223 status = hif_read_write_sync(ar, reg_addr, 224 (u8 *)&(addr_val), 225 4, HIF_WR_SYNC_BYTE_INC); 226 227 if (status) { 228 ath6kl_err("failed to write 0x%x to window reg: 0x%X\n", 229 addr, reg_addr); 230 return status; 231 } 232 233 return 0; 234} 235 236/* 237 * Read from the hardware through its diagnostic window. No cooperation 238 * from the firmware is required for this. 239 */ 240int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) 241{ 242 int ret; 243 244 /* set window register to start read cycle */ 245 ret = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, address); 246 if (ret) 247 return ret; 248 249 /* read the data */ 250 ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) value, 251 sizeof(*value), HIF_RD_SYNC_BYTE_INC); 252 if (ret) { 253 ath6kl_warn("failed to read32 through diagnose window: %d\n", 254 ret); 255 return ret; 256 } 257 258 return 0; 259} 260 261/* 262 * Write to the ATH6KL through its diagnostic window. No cooperation from 263 * the Target is required for this. 264 */ 265int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) 266{ 267 int ret; 268 269 /* set write data */ 270 ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) &value, 271 sizeof(value), HIF_WR_SYNC_BYTE_INC); 272 if (ret) { 273 ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n", 274 address, value); 275 return ret; 276 } 277 278 /* set window register, which starts the write cycle */ 279 return ath6kl_set_addrwin_reg(ar, WINDOW_WRITE_ADDR_ADDRESS, 280 address); 281} 282 283int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) 284{ 285 u32 count, *buf = data; 286 int ret; 287 288 if (WARN_ON(length % 4)) 289 return -EINVAL; 290 291 for (count = 0; count < length / 4; count++, address += 4) { 292 ret = ath6kl_diag_read32(ar, address, &buf[count]); 293 if (ret) 294 return ret; 295 } 296 297 return 0; 298} 299 300int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) 301{ 302 u32 count; 303 __le32 *buf = data; 304 int ret; 305 306 if (WARN_ON(length % 4)) 307 return -EINVAL; 308 309 for (count = 0; count < length / 4; count++, address += 4) { 310 ret = ath6kl_diag_write32(ar, address, buf[count]); 311 if (ret) 312 return ret; 313 } 314 315 return 0; 316} 317 318int ath6kl_read_fwlogs(struct ath6kl *ar) 319{ 320 struct ath6kl_dbglog_hdr debug_hdr; 321 struct ath6kl_dbglog_buf debug_buf; 322 u32 address, length, dropped, firstbuf, debug_hdr_addr; 323 int ret = 0, loop; 324 u8 *buf; 325 326 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); 327 if (!buf) 328 return -ENOMEM; 329 330 address = TARG_VTOP(ar->target_type, 331 ath6kl_get_hi_item_addr(ar, 332 HI_ITEM(hi_dbglog_hdr))); 333 334 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); 335 if (ret) 336 goto out; 337 338 /* Get the contents of the ring buffer */ 339 if (debug_hdr_addr == 0) { 340 ath6kl_warn("Invalid address for debug_hdr_addr\n"); 341 ret = -EINVAL; 342 goto out; 343 } 344 345 address = TARG_VTOP(ar->target_type, debug_hdr_addr); 346 ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); 347 348 address = TARG_VTOP(ar->target_type, 349 le32_to_cpu(debug_hdr.dbuf_addr)); 350 firstbuf = address; 351 dropped = le32_to_cpu(debug_hdr.dropped); 352 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 353 354 loop = 100; 355 356 do { 357 address = TARG_VTOP(ar->target_type, 358 le32_to_cpu(debug_buf.buffer_addr)); 359 length = le32_to_cpu(debug_buf.length); 360 361 if (length != 0 && (le32_to_cpu(debug_buf.length) <= 362 le32_to_cpu(debug_buf.bufsize))) { 363 length = ALIGN(length, 4); 364 365 ret = ath6kl_diag_read(ar, address, 366 buf, length); 367 if (ret) 368 goto out; 369 370 ath6kl_debug_fwlog_event(ar, buf, length); 371 } 372 373 address = TARG_VTOP(ar->target_type, 374 le32_to_cpu(debug_buf.next)); 375 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 376 if (ret) 377 goto out; 378 379 loop--; 380 381 if (WARN_ON(loop == 0)) { 382 ret = -ETIMEDOUT; 383 goto out; 384 } 385 } while (address != firstbuf); 386 387out: 388 kfree(buf); 389 390 return ret; 391} 392 393/* FIXME: move to a better place, target.h? */ 394#define AR6003_RESET_CONTROL_ADDRESS 0x00004000 395#define AR6004_RESET_CONTROL_ADDRESS 0x00004000 396 397void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, 398 bool wait_fot_compltn, bool cold_reset) 399{ 400 int status = 0; 401 u32 address; 402 __le32 data; 403 404 if (target_type != TARGET_TYPE_AR6003 && 405 target_type != TARGET_TYPE_AR6004) 406 return; 407 408 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : 409 cpu_to_le32(RESET_CONTROL_MBOX_RST); 410 411 switch (target_type) { 412 case TARGET_TYPE_AR6003: 413 address = AR6003_RESET_CONTROL_ADDRESS; 414 break; 415 case TARGET_TYPE_AR6004: 416 address = AR6004_RESET_CONTROL_ADDRESS; 417 break; 418 default: 419 address = AR6003_RESET_CONTROL_ADDRESS; 420 break; 421 } 422 423 status = ath6kl_diag_write32(ar, address, data); 424 425 if (status) 426 ath6kl_err("failed to reset target\n"); 427} 428 429static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) 430{ 431 u8 index; 432 u8 keyusage; 433 434 for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) { 435 if (vif->wep_key_list[index].key_len) { 436 keyusage = GROUP_USAGE; 437 if (index == vif->def_txkey_index) 438 keyusage |= TX_USAGE; 439 440 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, 441 index, 442 WEP_CRYPT, 443 keyusage, 444 vif->wep_key_list[index].key_len, 445 NULL, 0, 446 vif->wep_key_list[index].key, 447 KEY_OP_INIT_VAL, NULL, 448 NO_SYNC_WMIFLAG); 449 } 450 } 451} 452 453void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) 454{ 455 struct ath6kl *ar = vif->ar; 456 struct ath6kl_req_key *ik; 457 int res; 458 u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; 459 460 ik = &ar->ap_mode_bkey; 461 462 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); 463 464 switch (vif->auth_mode) { 465 case NONE_AUTH: 466 if (vif->prwise_crypto == WEP_CRYPT) 467 ath6kl_install_static_wep_keys(vif); 468 break; 469 case WPA_PSK_AUTH: 470 case WPA2_PSK_AUTH: 471 case (WPA_PSK_AUTH | WPA2_PSK_AUTH): 472 if (!ik->valid) 473 break; 474 475 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for " 476 "the initial group key for AP mode\n"); 477 memset(key_rsc, 0, sizeof(key_rsc)); 478 res = ath6kl_wmi_addkey_cmd( 479 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, 480 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN, 481 ik->key, 482 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); 483 if (res) { 484 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed " 485 "addkey failed: %d\n", res); 486 } 487 break; 488 } 489 490 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); 491 set_bit(CONNECTED, &vif->flags); 492 netif_carrier_on(vif->ndev); 493} 494 495void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, 496 u8 keymgmt, u8 ucipher, u8 auth, 497 u8 assoc_req_len, u8 *assoc_info) 498{ 499 struct ath6kl *ar = vif->ar; 500 u8 *ies = NULL, *wpa_ie = NULL, *pos; 501 size_t ies_len = 0; 502 struct station_info sinfo; 503 504 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); 505 506 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { 507 struct ieee80211_mgmt *mgmt = 508 (struct ieee80211_mgmt *) assoc_info; 509 if (ieee80211_is_assoc_req(mgmt->frame_control) && 510 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + 511 sizeof(mgmt->u.assoc_req)) { 512 ies = mgmt->u.assoc_req.variable; 513 ies_len = assoc_info + assoc_req_len - ies; 514 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && 515 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) 516 + sizeof(mgmt->u.reassoc_req)) { 517 ies = mgmt->u.reassoc_req.variable; 518 ies_len = assoc_info + assoc_req_len - ies; 519 } 520 } 521 522 pos = ies; 523 while (pos && pos + 1 < ies + ies_len) { 524 if (pos + 2 + pos[1] > ies + ies_len) 525 break; 526 if (pos[0] == WLAN_EID_RSN) 527 wpa_ie = pos; /* RSN IE */ 528 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 529 pos[1] >= 4 && 530 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { 531 if (pos[5] == 0x01) 532 wpa_ie = pos; /* WPA IE */ 533 else if (pos[5] == 0x04) { 534 wpa_ie = pos; /* WPS IE */ 535 break; /* overrides WPA/RSN IE */ 536 } 537 } 538 pos += 2 + pos[1]; 539 } 540 541 ath6kl_add_new_sta(ar, mac_addr, aid, wpa_ie, 542 wpa_ie ? 2 + wpa_ie[1] : 0, 543 keymgmt, ucipher, auth); 544 545 /* send event to application */ 546 memset(&sinfo, 0, sizeof(sinfo)); 547 548 /* TODO: sinfo.generation */ 549 550 sinfo.assoc_req_ies = ies; 551 sinfo.assoc_req_ies_len = ies_len; 552 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; 553 554 cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL); 555 556 netif_wake_queue(vif->ndev); 557} 558 559void disconnect_timer_handler(unsigned long ptr) 560{ 561 struct net_device *dev = (struct net_device *)ptr; 562 struct ath6kl_vif *vif = netdev_priv(dev); 563 564 ath6kl_init_profile_info(vif); 565 ath6kl_disconnect(vif); 566} 567 568void ath6kl_disconnect(struct ath6kl_vif *vif) 569{ 570 if (test_bit(CONNECTED, &vif->flags) || 571 test_bit(CONNECT_PEND, &vif->flags)) { 572 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 573 /* 574 * Disconnect command is issued, clear the connect pending 575 * flag. The connected flag will be cleared in 576 * disconnect event notification. 577 */ 578 clear_bit(CONNECT_PEND, &vif->flags); 579 } 580} 581 582/* WMI Event handlers */ 583 584static const char *get_hw_id_string(u32 id) 585{ 586 switch (id) { 587 case AR6003_REV1_VERSION: 588 return "1.0"; 589 case AR6003_REV2_VERSION: 590 return "2.0"; 591 case AR6003_REV3_VERSION: 592 return "2.1.1"; 593 default: 594 return "unknown"; 595 } 596} 597 598void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) 599{ 600 struct ath6kl *ar = devt; 601 602 memcpy(ar->mac_addr, datap, ETH_ALEN); 603 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n", 604 __func__, ar->mac_addr); 605 606 ar->version.wlan_ver = sw_ver; 607 ar->version.abi_ver = abi_ver; 608 609 snprintf(ar->wiphy->fw_version, 610 sizeof(ar->wiphy->fw_version), 611 "%u.%u.%u.%u", 612 (ar->version.wlan_ver & 0xf0000000) >> 28, 613 (ar->version.wlan_ver & 0x0f000000) >> 24, 614 (ar->version.wlan_ver & 0x00ff0000) >> 16, 615 (ar->version.wlan_ver & 0x0000ffff)); 616 617 /* indicate to the waiting thread that the ready event was received */ 618 set_bit(WMI_READY, &ar->flag); 619 wake_up(&ar->event_wq); 620 621 if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) { 622 ath6kl_info("hw %s fw %s%s\n", 623 get_hw_id_string(ar->wiphy->hw_version), 624 ar->wiphy->fw_version, 625 test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); 626 } 627} 628 629void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) 630{ 631 struct ath6kl *ar = vif->ar; 632 bool aborted = false; 633 634 if (status != WMI_SCAN_STATUS_SUCCESS) 635 aborted = true; 636 637 ath6kl_cfg80211_scan_complete_event(vif, aborted); 638 639 if (!ar->usr_bss_filter) { 640 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 641 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 642 NONE_BSS_FILTER, 0); 643 } 644 645 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status); 646} 647 648void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, 649 u16 listen_int, u16 beacon_int, 650 enum network_type net_type, u8 beacon_ie_len, 651 u8 assoc_req_len, u8 assoc_resp_len, 652 u8 *assoc_info) 653{ 654 struct ath6kl *ar = vif->ar; 655 656 ath6kl_cfg80211_connect_event(vif, channel, bssid, 657 listen_int, beacon_int, 658 net_type, beacon_ie_len, 659 assoc_req_len, assoc_resp_len, 660 assoc_info); 661 662 memcpy(vif->bssid, bssid, sizeof(vif->bssid)); 663 vif->bss_ch = channel; 664 665 if ((vif->nw_type == INFRA_NETWORK)) 666 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 667 ar->listen_intvl_t, 668 ar->listen_intvl_b); 669 670 netif_wake_queue(vif->ndev); 671 672 /* Update connect & link status atomically */ 673 spin_lock_bh(&vif->if_lock); 674 set_bit(CONNECTED, &vif->flags); 675 clear_bit(CONNECT_PEND, &vif->flags); 676 netif_carrier_on(vif->ndev); 677 spin_unlock_bh(&vif->if_lock); 678 679 aggr_reset_state(vif->aggr_cntxt); 680 vif->reconnect_flag = 0; 681 682 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { 683 memset(ar->node_map, 0, sizeof(ar->node_map)); 684 ar->node_num = 0; 685 ar->next_ep_id = ENDPOINT_2; 686 } 687 688 if (!ar->usr_bss_filter) { 689 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 690 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 691 CURRENT_BSS_FILTER, 0); 692 } 693} 694 695void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) 696{ 697 struct ath6kl_sta *sta; 698 struct ath6kl *ar = vif->ar; 699 u8 tsc[6]; 700 701 /* 702 * For AP case, keyid will have aid of STA which sent pkt with 703 * MIC error. Use this aid to get MAC & send it to hostapd. 704 */ 705 if (vif->nw_type == AP_NETWORK) { 706 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); 707 if (!sta) 708 return; 709 710 ath6kl_dbg(ATH6KL_DBG_TRC, 711 "ap tkip mic error received from aid=%d\n", keyid); 712 713 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ 714 cfg80211_michael_mic_failure(vif->ndev, sta->mac, 715 NL80211_KEYTYPE_PAIRWISE, keyid, 716 tsc, GFP_KERNEL); 717 } else 718 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); 719 720} 721 722static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) 723{ 724 struct wmi_target_stats *tgt_stats = 725 (struct wmi_target_stats *) ptr; 726 struct ath6kl *ar = vif->ar; 727 struct target_stats *stats = &vif->target_stats; 728 struct tkip_ccmp_stats *ccmp_stats; 729 u8 ac; 730 731 if (len < sizeof(*tgt_stats)) 732 return; 733 734 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); 735 736 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); 737 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); 738 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); 739 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); 740 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); 741 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); 742 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); 743 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); 744 stats->tx_rts_success_cnt += 745 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); 746 747 for (ac = 0; ac < WMM_NUM_AC; ac++) 748 stats->tx_pkt_per_ac[ac] += 749 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); 750 751 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); 752 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); 753 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); 754 stats->tx_mult_retry_cnt += 755 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); 756 stats->tx_rts_fail_cnt += 757 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); 758 stats->tx_ucast_rate = 759 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); 760 761 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); 762 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); 763 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); 764 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); 765 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); 766 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); 767 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); 768 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); 769 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); 770 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); 771 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); 772 stats->rx_key_cache_miss += 773 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); 774 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); 775 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); 776 stats->rx_ucast_rate = 777 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); 778 779 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; 780 781 stats->tkip_local_mic_fail += 782 le32_to_cpu(ccmp_stats->tkip_local_mic_fail); 783 stats->tkip_cnter_measures_invoked += 784 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); 785 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); 786 787 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); 788 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); 789 790 stats->pwr_save_fail_cnt += 791 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); 792 stats->noise_floor_calib = 793 a_sle32_to_cpu(tgt_stats->noise_floor_calib); 794 795 stats->cs_bmiss_cnt += 796 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); 797 stats->cs_low_rssi_cnt += 798 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); 799 stats->cs_connect_cnt += 800 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); 801 stats->cs_discon_cnt += 802 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); 803 804 stats->cs_ave_beacon_rssi = 805 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); 806 807 stats->cs_last_roam_msec = 808 tgt_stats->cserv_stats.cs_last_roam_msec; 809 stats->cs_snr = tgt_stats->cserv_stats.cs_snr; 810 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); 811 812 stats->lq_val = le32_to_cpu(tgt_stats->lq_val); 813 814 stats->wow_pkt_dropped += 815 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); 816 stats->wow_host_pkt_wakeups += 817 tgt_stats->wow_stats.wow_host_pkt_wakeups; 818 stats->wow_host_evt_wakeups += 819 tgt_stats->wow_stats.wow_host_evt_wakeups; 820 stats->wow_evt_discarded += 821 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); 822 823 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { 824 clear_bit(STATS_UPDATE_PEND, &vif->flags); 825 wake_up(&ar->event_wq); 826 } 827} 828 829static void ath6kl_add_le32(__le32 *var, __le32 val) 830{ 831 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); 832} 833 834void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) 835{ 836 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; 837 struct ath6kl *ar = vif->ar; 838 struct wmi_ap_mode_stat *ap = &ar->ap_stats; 839 struct wmi_per_sta_stat *st_ap, *st_p; 840 u8 ac; 841 842 if (vif->nw_type == AP_NETWORK) { 843 if (len < sizeof(*p)) 844 return; 845 846 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { 847 st_ap = &ap->sta[ac]; 848 st_p = &p->sta[ac]; 849 850 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); 851 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); 852 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); 853 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); 854 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); 855 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); 856 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); 857 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); 858 } 859 860 } else { 861 ath6kl_update_target_stats(vif, ptr, len); 862 } 863} 864 865void ath6kl_wakeup_event(void *dev) 866{ 867 struct ath6kl *ar = (struct ath6kl *) dev; 868 869 wake_up(&ar->event_wq); 870} 871 872void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) 873{ 874 struct ath6kl *ar = (struct ath6kl *) devt; 875 876 ar->tx_pwr = tx_pwr; 877 wake_up(&ar->event_wq); 878} 879 880void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) 881{ 882 struct ath6kl_sta *conn; 883 struct sk_buff *skb; 884 bool psq_empty = false; 885 struct ath6kl *ar = vif->ar; 886 887 conn = ath6kl_find_sta_by_aid(ar, aid); 888 889 if (!conn) 890 return; 891 /* 892 * Send out a packet queued on ps queue. When the ps queue 893 * becomes empty update the PVB for this station. 894 */ 895 spin_lock_bh(&conn->psq_lock); 896 psq_empty = skb_queue_empty(&conn->psq); 897 spin_unlock_bh(&conn->psq_lock); 898 899 if (psq_empty) 900 /* TODO: Send out a NULL data frame */ 901 return; 902 903 spin_lock_bh(&conn->psq_lock); 904 skb = skb_dequeue(&conn->psq); 905 spin_unlock_bh(&conn->psq_lock); 906 907 conn->sta_flags |= STA_PS_POLLED; 908 ath6kl_data_tx(skb, vif->ndev); 909 conn->sta_flags &= ~STA_PS_POLLED; 910 911 spin_lock_bh(&conn->psq_lock); 912 psq_empty = skb_queue_empty(&conn->psq); 913 spin_unlock_bh(&conn->psq_lock); 914 915 if (psq_empty) 916 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); 917} 918 919void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) 920{ 921 bool mcastq_empty = false; 922 struct sk_buff *skb; 923 struct ath6kl *ar = vif->ar; 924 925 /* 926 * If there are no associated STAs, ignore the DTIM expiry event. 927 * There can be potential race conditions where the last associated 928 * STA may disconnect & before the host could clear the 'Indicate 929 * DTIM' request to the firmware, the firmware would have just 930 * indicated a DTIM expiry event. The race is between 'clear DTIM 931 * expiry cmd' going from the host to the firmware & the DTIM 932 * expiry event happening from the firmware to the host. 933 */ 934 if (!ar->sta_list_index) 935 return; 936 937 spin_lock_bh(&ar->mcastpsq_lock); 938 mcastq_empty = skb_queue_empty(&ar->mcastpsq); 939 spin_unlock_bh(&ar->mcastpsq_lock); 940 941 if (mcastq_empty) 942 return; 943 944 /* set the STA flag to dtim_expired for the frame to go out */ 945 set_bit(DTIM_EXPIRED, &vif->flags); 946 947 spin_lock_bh(&ar->mcastpsq_lock); 948 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { 949 spin_unlock_bh(&ar->mcastpsq_lock); 950 951 ath6kl_data_tx(skb, vif->ndev); 952 953 spin_lock_bh(&ar->mcastpsq_lock); 954 } 955 spin_unlock_bh(&ar->mcastpsq_lock); 956 957 clear_bit(DTIM_EXPIRED, &vif->flags); 958 959 /* clear the LSB of the BitMapCtl field of the TIM IE */ 960 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); 961} 962 963void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, 964 u8 assoc_resp_len, u8 *assoc_info, 965 u16 prot_reason_status) 966{ 967 struct ath6kl *ar = vif->ar; 968 969 if (vif->nw_type == AP_NETWORK) { 970 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) 971 return; 972 973 /* if no more associated STAs, empty the mcast PS q */ 974 if (ar->sta_list_index == 0) { 975 spin_lock_bh(&ar->mcastpsq_lock); 976 skb_queue_purge(&ar->mcastpsq); 977 spin_unlock_bh(&ar->mcastpsq_lock); 978 979 /* clear the LSB of the TIM IE's BitMapCtl field */ 980 if (test_bit(WMI_READY, &ar->flag)) 981 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 982 MCAST_AID, 0); 983 } 984 985 if (!is_broadcast_ether_addr(bssid)) { 986 /* send event to application */ 987 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); 988 } 989 990 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { 991 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); 992 clear_bit(CONNECTED, &vif->flags); 993 } 994 return; 995 } 996 997 ath6kl_cfg80211_disconnect_event(vif, reason, bssid, 998 assoc_resp_len, assoc_info, 999 prot_reason_status); 1000 1001 aggr_reset_state(vif->aggr_cntxt); 1002 1003 del_timer(&vif->disconnect_timer); 1004 1005 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason); 1006 1007 /* 1008 * If the event is due to disconnect cmd from the host, only they 1009 * the target would stop trying to connect. Under any other 1010 * condition, target would keep trying to connect. 1011 */ 1012 if (reason == DISCONNECT_CMD) { 1013 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) 1014 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1015 NONE_BSS_FILTER, 0); 1016 } else { 1017 set_bit(CONNECT_PEND, &vif->flags); 1018 if (((reason == ASSOC_FAILED) && 1019 (prot_reason_status == 0x11)) || 1020 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) 1021 && (vif->reconnect_flag == 1))) { 1022 set_bit(CONNECTED, &vif->flags); 1023 return; 1024 } 1025 } 1026 1027 /* update connect & link status atomically */ 1028 spin_lock_bh(&vif->if_lock); 1029 clear_bit(CONNECTED, &vif->flags); 1030 netif_carrier_off(vif->ndev); 1031 spin_unlock_bh(&vif->if_lock); 1032 1033 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) 1034 vif->reconnect_flag = 0; 1035 1036 if (reason != CSERV_DISCONNECT) 1037 ar->user_key_ctrl = 0; 1038 1039 netif_stop_queue(vif->ndev); 1040 memset(vif->bssid, 0, sizeof(vif->bssid)); 1041 vif->bss_ch = 0; 1042 1043 ath6kl_tx_data_cleanup(ar); 1044} 1045 1046struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar) 1047{ 1048 struct ath6kl_vif *vif; 1049 1050 spin_lock_bh(&ar->list_lock); 1051 if (list_empty(&ar->vif_list)) { 1052 spin_unlock_bh(&ar->list_lock); 1053 return NULL; 1054 } 1055 1056 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list); 1057 1058 spin_unlock_bh(&ar->list_lock); 1059 1060 return vif; 1061} 1062 1063static int ath6kl_open(struct net_device *dev) 1064{ 1065 struct ath6kl_vif *vif = netdev_priv(dev); 1066 1067 set_bit(WLAN_ENABLED, &vif->flags); 1068 1069 if (test_bit(CONNECTED, &vif->flags)) { 1070 netif_carrier_on(dev); 1071 netif_wake_queue(dev); 1072 } else 1073 netif_carrier_off(dev); 1074 1075 return 0; 1076} 1077 1078static int ath6kl_close(struct net_device *dev) 1079{ 1080 struct ath6kl *ar = ath6kl_priv(dev); 1081 struct ath6kl_vif *vif = netdev_priv(dev); 1082 1083 netif_stop_queue(dev); 1084 1085 ath6kl_disconnect(vif); 1086 1087 if (test_bit(WMI_READY, &ar->flag)) { 1088 if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, 1089 0, 0, 0, 0, 0, 0, 0, 0, 0)) 1090 return -EIO; 1091 1092 } 1093 1094 ath6kl_cfg80211_scan_complete_event(vif, true); 1095 1096 clear_bit(WLAN_ENABLED, &vif->flags); 1097 1098 return 0; 1099} 1100 1101static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) 1102{ 1103 struct ath6kl_vif *vif = netdev_priv(dev); 1104 1105 return &vif->net_stats; 1106} 1107 1108static struct net_device_ops ath6kl_netdev_ops = { 1109 .ndo_open = ath6kl_open, 1110 .ndo_stop = ath6kl_close, 1111 .ndo_start_xmit = ath6kl_data_tx, 1112 .ndo_get_stats = ath6kl_get_stats, 1113}; 1114 1115void init_netdev(struct net_device *dev) 1116{ 1117 dev->netdev_ops = &ath6kl_netdev_ops; 1118 dev->destructor = free_netdev; 1119 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; 1120 1121 dev->needed_headroom = ETH_HLEN; 1122 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + 1123 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH 1124 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; 1125 1126 return; 1127} 1128