1 /* 2 * Marvell Wireless LAN device driver: functions for station ioctl 3 * 4 * Copyright (C) 2011-2014, Marvell International Ltd. 5 * 6 * This software file (the "File") is distributed by Marvell International 7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991 8 * (the "License"). You may use, redistribute and/or modify this File in 9 * accordance with the terms and conditions of the License, a copy of which 10 * is available by writing to the Free Software Foundation, Inc., 11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13 * 14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 17 * this warranty disclaimer. 18 */ 19 20 #include "decl.h" 21 #include "ioctl.h" 22 #include "util.h" 23 #include "fw.h" 24 #include "main.h" 25 #include "wmm.h" 26 #include "11n.h" 27 #include "cfg80211.h" 28 29 static int disconnect_on_suspend; 30 module_param(disconnect_on_suspend, int, 0644); 31 32 /* 33 * Copies the multicast address list from device to driver. 34 * 35 * This function does not validate the destination memory for 36 * size, and the calling function must ensure enough memory is 37 * available. 38 */ 39 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, 40 struct net_device *dev) 41 { 42 int i = 0; 43 struct netdev_hw_addr *ha; 44 45 netdev_for_each_mc_addr(ha, dev) 46 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN); 47 48 return i; 49 } 50 51 /* 52 * Wait queue completion handler. 53 * 54 * This function waits on a cmd wait queue. It also cancels the pending 55 * request after waking up, in case of errors. 56 */ 57 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter, 58 struct cmd_ctrl_node *cmd_queued) 59 { 60 int status; 61 62 /* Wait for completion */ 63 status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait, 64 *(cmd_queued->condition), 65 (12 * HZ)); 66 if (status <= 0) { 67 if (status == 0) 68 status = -ETIMEDOUT; 69 mwifiex_dbg(adapter, ERROR, "cmd_wait_q terminated: %d\n", 70 status); 71 mwifiex_cancel_all_pending_cmd(adapter); 72 return status; 73 } 74 75 status = adapter->cmd_wait_q.status; 76 adapter->cmd_wait_q.status = 0; 77 78 return status; 79 } 80 81 /* 82 * This function prepares the correct firmware command and 83 * issues it to set the multicast list. 84 * 85 * This function can be used to enable promiscuous mode, or enable all 86 * multicast packets, or to enable selective multicast. 87 */ 88 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv, 89 struct mwifiex_multicast_list *mcast_list) 90 { 91 int ret = 0; 92 u16 old_pkt_filter; 93 94 old_pkt_filter = priv->curr_pkt_filter; 95 96 if (mcast_list->mode == MWIFIEX_PROMISC_MODE) { 97 mwifiex_dbg(priv->adapter, INFO, 98 "info: Enable Promiscuous mode\n"); 99 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; 100 priv->curr_pkt_filter &= 101 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; 102 } else { 103 /* Multicast */ 104 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; 105 if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) { 106 mwifiex_dbg(priv->adapter, INFO, 107 "info: Enabling All Multicast!\n"); 108 priv->curr_pkt_filter |= 109 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; 110 } else { 111 priv->curr_pkt_filter &= 112 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; 113 mwifiex_dbg(priv->adapter, INFO, 114 "info: Set multicast list=%d\n", 115 mcast_list->num_multicast_addr); 116 /* Send multicast addresses to firmware */ 117 ret = mwifiex_send_cmd(priv, 118 HostCmd_CMD_MAC_MULTICAST_ADR, 119 HostCmd_ACT_GEN_SET, 0, 120 mcast_list, false); 121 } 122 } 123 mwifiex_dbg(priv->adapter, INFO, 124 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n", 125 old_pkt_filter, priv->curr_pkt_filter); 126 if (old_pkt_filter != priv->curr_pkt_filter) { 127 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 128 HostCmd_ACT_GEN_SET, 129 0, &priv->curr_pkt_filter, false); 130 } 131 132 return ret; 133 } 134 135 /* 136 * This function fills bss descriptor structure using provided 137 * information. 138 * beacon_ie buffer is allocated in this function. It is caller's 139 * responsibility to free the memory. 140 */ 141 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, 142 struct cfg80211_bss *bss, 143 struct mwifiex_bssdescriptor *bss_desc) 144 { 145 u8 *beacon_ie; 146 size_t beacon_ie_len; 147 struct mwifiex_bss_priv *bss_priv = (void *)bss->priv; 148 const struct cfg80211_bss_ies *ies; 149 150 rcu_read_lock(); 151 ies = rcu_dereference(bss->ies); 152 beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC); 153 beacon_ie_len = ies->len; 154 bss_desc->timestamp = ies->tsf; 155 rcu_read_unlock(); 156 157 if (!beacon_ie) { 158 mwifiex_dbg(priv->adapter, ERROR, 159 " failed to alloc beacon_ie\n"); 160 return -ENOMEM; 161 } 162 163 memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN); 164 bss_desc->rssi = bss->signal; 165 /* The caller of this function will free beacon_ie */ 166 bss_desc->beacon_buf = beacon_ie; 167 bss_desc->beacon_buf_size = beacon_ie_len; 168 bss_desc->beacon_period = bss->beacon_interval; 169 bss_desc->cap_info_bitmap = bss->capability; 170 bss_desc->bss_band = bss_priv->band; 171 bss_desc->fw_tsf = bss_priv->fw_tsf; 172 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) { 173 mwifiex_dbg(priv->adapter, INFO, 174 "info: InterpretIE: AP WEP enabled\n"); 175 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP; 176 } else { 177 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL; 178 } 179 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS) 180 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC; 181 else 182 bss_desc->bss_mode = NL80211_IFTYPE_STATION; 183 184 /* Disable 11ac by default. Enable it only where there 185 * exist VHT_CAP IE in AP beacon 186 */ 187 bss_desc->disable_11ac = true; 188 189 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT) 190 bss_desc->sensed_11h = true; 191 192 return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc); 193 } 194 195 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv) 196 { 197 if (priv->adapter->dt_node) { 198 char txpwr[] = {"marvell,00_txpwrlimit"}; 199 200 memcpy(&txpwr[8], priv->adapter->country_code, 2); 201 mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr); 202 } 203 } 204 205 static int mwifiex_process_country_ie(struct mwifiex_private *priv, 206 struct cfg80211_bss *bss) 207 { 208 const u8 *country_ie; 209 u8 country_ie_len; 210 struct mwifiex_802_11d_domain_reg *domain_info = 211 &priv->adapter->domain_reg; 212 213 rcu_read_lock(); 214 country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); 215 if (!country_ie) { 216 rcu_read_unlock(); 217 return 0; 218 } 219 220 country_ie_len = country_ie[1]; 221 if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) { 222 rcu_read_unlock(); 223 return 0; 224 } 225 226 if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) { 227 rcu_read_unlock(); 228 mwifiex_dbg(priv->adapter, INFO, 229 "11D: skip setting domain info in FW\n"); 230 return 0; 231 } 232 233 if (country_ie_len > 234 (IEEE80211_COUNTRY_STRING_LEN + MWIFIEX_MAX_TRIPLET_802_11D)) { 235 mwifiex_dbg(priv->adapter, ERROR, 236 "11D: country_ie_len overflow!, deauth AP\n"); 237 return -EINVAL; 238 } 239 240 memcpy(priv->adapter->country_code, &country_ie[2], 2); 241 242 domain_info->country_code[0] = country_ie[2]; 243 domain_info->country_code[1] = country_ie[3]; 244 domain_info->country_code[2] = ' '; 245 246 country_ie_len -= IEEE80211_COUNTRY_STRING_LEN; 247 248 domain_info->no_of_triplet = 249 country_ie_len / sizeof(struct ieee80211_country_ie_triplet); 250 251 memcpy((u8 *)domain_info->triplet, 252 &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len); 253 254 rcu_read_unlock(); 255 256 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, 257 HostCmd_ACT_GEN_SET, 0, NULL, false)) { 258 mwifiex_dbg(priv->adapter, ERROR, 259 "11D: setting domain info in FW fail\n"); 260 return -1; 261 } 262 263 mwifiex_dnld_txpwr_table(priv); 264 265 return 0; 266 } 267 268 /* 269 * In Ad-Hoc mode, the IBSS is created if not found in scan list. 270 * In both Ad-Hoc and infra mode, an deauthentication is performed 271 * first. 272 */ 273 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, 274 struct cfg80211_ssid *req_ssid) 275 { 276 int ret; 277 struct mwifiex_adapter *adapter = priv->adapter; 278 struct mwifiex_bssdescriptor *bss_desc = NULL; 279 280 priv->scan_block = false; 281 282 if (bss) { 283 if (adapter->region_code == 0x00 && 284 mwifiex_process_country_ie(priv, bss)) 285 return -EINVAL; 286 287 /* Allocate and fill new bss descriptor */ 288 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor), 289 GFP_KERNEL); 290 if (!bss_desc) 291 return -ENOMEM; 292 293 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc); 294 if (ret) 295 goto done; 296 } 297 298 if (priv->bss_mode == NL80211_IFTYPE_STATION || 299 priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) { 300 u8 config_bands; 301 302 if (!bss_desc) 303 return -1; 304 305 if (mwifiex_band_to_radio_type(bss_desc->bss_band) == 306 HostCmd_SCAN_RADIO_TYPE_BG) { 307 config_bands = BAND_B | BAND_G | BAND_GN; 308 } else { 309 config_bands = BAND_A | BAND_AN; 310 if (adapter->fw_bands & BAND_AAC) 311 config_bands |= BAND_AAC; 312 } 313 314 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) 315 adapter->config_bands = config_bands; 316 317 ret = mwifiex_check_network_compatibility(priv, bss_desc); 318 if (ret) 319 goto done; 320 321 if (mwifiex_11h_get_csa_closed_channel(priv) == 322 (u8)bss_desc->channel) { 323 mwifiex_dbg(adapter, ERROR, 324 "Attempt to reconnect on csa closed chan(%d)\n", 325 bss_desc->channel); 326 ret = -1; 327 goto done; 328 } 329 330 mwifiex_dbg(adapter, INFO, 331 "info: SSID found in scan list ...\t" 332 "associating...\n"); 333 334 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 335 if (netif_carrier_ok(priv->netdev)) 336 netif_carrier_off(priv->netdev); 337 338 /* Clear any past association response stored for 339 * application retrieval */ 340 priv->assoc_rsp_size = 0; 341 ret = mwifiex_associate(priv, bss_desc); 342 343 /* If auth type is auto and association fails using open mode, 344 * try to connect using shared mode */ 345 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && 346 priv->sec_info.is_authtype_auto && 347 priv->sec_info.wep_enabled) { 348 priv->sec_info.authentication_mode = 349 NL80211_AUTHTYPE_SHARED_KEY; 350 ret = mwifiex_associate(priv, bss_desc); 351 } 352 353 if (bss) 354 cfg80211_put_bss(priv->adapter->wiphy, bss); 355 } else { 356 /* Adhoc mode */ 357 /* If the requested SSID matches current SSID, return */ 358 if (bss_desc && bss_desc->ssid.ssid_len && 359 (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor. 360 ssid, &bss_desc->ssid))) { 361 ret = 0; 362 goto done; 363 } 364 365 priv->adhoc_is_link_sensed = false; 366 367 ret = mwifiex_check_network_compatibility(priv, bss_desc); 368 369 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 370 if (netif_carrier_ok(priv->netdev)) 371 netif_carrier_off(priv->netdev); 372 373 if (!ret) { 374 mwifiex_dbg(adapter, INFO, 375 "info: network found in scan\t" 376 " list. Joining...\n"); 377 ret = mwifiex_adhoc_join(priv, bss_desc); 378 if (bss) 379 cfg80211_put_bss(priv->adapter->wiphy, bss); 380 } else { 381 mwifiex_dbg(adapter, INFO, 382 "info: Network not found in\t" 383 "the list, creating adhoc with ssid = %s\n", 384 req_ssid->ssid); 385 ret = mwifiex_adhoc_start(priv, req_ssid); 386 } 387 } 388 389 done: 390 /* beacon_ie buffer was allocated in function 391 * mwifiex_fill_new_bss_desc(). Free it now. 392 */ 393 if (bss_desc) 394 kfree(bss_desc->beacon_buf); 395 kfree(bss_desc); 396 397 if (ret < 0) 398 priv->attempted_bss_desc = NULL; 399 400 return ret; 401 } 402 403 /* 404 * IOCTL request handler to set host sleep configuration. 405 * 406 * This function prepares the correct firmware command and 407 * issues it. 408 */ 409 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action, 410 int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg) 411 412 { 413 struct mwifiex_adapter *adapter = priv->adapter; 414 int status = 0; 415 u32 prev_cond = 0; 416 417 if (!hs_cfg) 418 return -ENOMEM; 419 420 switch (action) { 421 case HostCmd_ACT_GEN_SET: 422 if (adapter->pps_uapsd_mode) { 423 mwifiex_dbg(adapter, INFO, 424 "info: Host Sleep IOCTL\t" 425 "is blocked in UAPSD/PPS mode\n"); 426 status = -1; 427 break; 428 } 429 if (hs_cfg->is_invoke_hostcmd) { 430 if (hs_cfg->conditions == HS_CFG_CANCEL) { 431 if (!test_bit(MWIFIEX_IS_HS_CONFIGURED, 432 &adapter->work_flags)) 433 /* Already cancelled */ 434 break; 435 /* Save previous condition */ 436 prev_cond = le32_to_cpu(adapter->hs_cfg 437 .conditions); 438 adapter->hs_cfg.conditions = 439 cpu_to_le32(hs_cfg->conditions); 440 } else if (hs_cfg->conditions) { 441 adapter->hs_cfg.conditions = 442 cpu_to_le32(hs_cfg->conditions); 443 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 444 if (hs_cfg->gap) 445 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 446 } else if (adapter->hs_cfg.conditions == 447 cpu_to_le32(HS_CFG_CANCEL)) { 448 /* Return failure if no parameters for HS 449 enable */ 450 status = -1; 451 break; 452 } 453 454 status = mwifiex_send_cmd(priv, 455 HostCmd_CMD_802_11_HS_CFG_ENH, 456 HostCmd_ACT_GEN_SET, 0, 457 &adapter->hs_cfg, 458 cmd_type == MWIFIEX_SYNC_CMD); 459 460 if (hs_cfg->conditions == HS_CFG_CANCEL) 461 /* Restore previous condition */ 462 adapter->hs_cfg.conditions = 463 cpu_to_le32(prev_cond); 464 } else { 465 adapter->hs_cfg.conditions = 466 cpu_to_le32(hs_cfg->conditions); 467 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 468 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 469 } 470 break; 471 case HostCmd_ACT_GEN_GET: 472 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions); 473 hs_cfg->gpio = adapter->hs_cfg.gpio; 474 hs_cfg->gap = adapter->hs_cfg.gap; 475 break; 476 default: 477 status = -1; 478 break; 479 } 480 481 return status; 482 } 483 484 /* 485 * Sends IOCTL request to cancel the existing Host Sleep configuration. 486 * 487 * This function allocates the IOCTL request buffer, fills it 488 * with requisite parameters and calls the IOCTL handler. 489 */ 490 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type) 491 { 492 struct mwifiex_ds_hs_cfg hscfg; 493 494 hscfg.conditions = HS_CFG_CANCEL; 495 hscfg.is_invoke_hostcmd = true; 496 497 return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, 498 cmd_type, &hscfg); 499 } 500 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs); 501 502 /* 503 * Sends IOCTL request to cancel the existing Host Sleep configuration. 504 * 505 * This function allocates the IOCTL request buffer, fills it 506 * with requisite parameters and calls the IOCTL handler. 507 */ 508 int mwifiex_enable_hs(struct mwifiex_adapter *adapter) 509 { 510 struct mwifiex_ds_hs_cfg hscfg; 511 struct mwifiex_private *priv; 512 int i; 513 514 if (disconnect_on_suspend) { 515 for (i = 0; i < adapter->priv_num; i++) { 516 priv = adapter->priv[i]; 517 if (priv) 518 mwifiex_deauthenticate(priv, NULL); 519 } 520 } 521 522 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 523 524 if (priv && priv->sched_scanning) { 525 #ifdef CONFIG_PM 526 if (priv->wdev.wiphy->wowlan_config && 527 !priv->wdev.wiphy->wowlan_config->nd_config) { 528 #endif 529 mwifiex_dbg(adapter, CMD, "aborting bgscan!\n"); 530 mwifiex_stop_bg_scan(priv); 531 cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0); 532 #ifdef CONFIG_PM 533 } 534 #endif 535 } 536 537 if (adapter->hs_activated) { 538 mwifiex_dbg(adapter, CMD, 539 "cmd: HS Already activated\n"); 540 return true; 541 } 542 543 adapter->hs_activate_wait_q_woken = false; 544 545 memset(&hscfg, 0, sizeof(hscfg)); 546 hscfg.is_invoke_hostcmd = true; 547 548 set_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags); 549 mwifiex_cancel_all_pending_cmd(adapter); 550 551 if (mwifiex_set_hs_params(mwifiex_get_priv(adapter, 552 MWIFIEX_BSS_ROLE_STA), 553 HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD, 554 &hscfg)) { 555 mwifiex_dbg(adapter, ERROR, 556 "IOCTL request HS enable failed\n"); 557 return false; 558 } 559 560 if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q, 561 adapter->hs_activate_wait_q_woken, 562 (10 * HZ)) <= 0) { 563 mwifiex_dbg(adapter, ERROR, 564 "hs_activate_wait_q terminated\n"); 565 return false; 566 } 567 568 return true; 569 } 570 EXPORT_SYMBOL_GPL(mwifiex_enable_hs); 571 572 /* 573 * IOCTL request handler to get BSS information. 574 * 575 * This function collates the information from different driver structures 576 * to send to the user. 577 */ 578 int mwifiex_get_bss_info(struct mwifiex_private *priv, 579 struct mwifiex_bss_info *info) 580 { 581 struct mwifiex_adapter *adapter = priv->adapter; 582 struct mwifiex_bssdescriptor *bss_desc; 583 584 if (!info) 585 return -1; 586 587 bss_desc = &priv->curr_bss_params.bss_descriptor; 588 589 info->bss_mode = priv->bss_mode; 590 591 memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid)); 592 593 memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN); 594 595 info->bss_chan = bss_desc->channel; 596 597 memcpy(info->country_code, adapter->country_code, 598 IEEE80211_COUNTRY_STRING_LEN); 599 600 info->media_connected = priv->media_connected; 601 602 info->max_power_level = priv->max_tx_power_level; 603 info->min_power_level = priv->min_tx_power_level; 604 605 info->adhoc_state = priv->adhoc_state; 606 607 info->bcn_nf_last = priv->bcn_nf_last; 608 609 if (priv->sec_info.wep_enabled) 610 info->wep_status = true; 611 else 612 info->wep_status = false; 613 614 info->is_hs_configured = test_bit(MWIFIEX_IS_HS_CONFIGURED, 615 &adapter->work_flags); 616 info->is_deep_sleep = adapter->is_deep_sleep; 617 618 return 0; 619 } 620 621 /* 622 * The function disables auto deep sleep mode. 623 */ 624 int mwifiex_disable_auto_ds(struct mwifiex_private *priv) 625 { 626 struct mwifiex_ds_auto_ds auto_ds = { 627 .auto_ds = DEEP_SLEEP_OFF, 628 }; 629 630 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 631 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true); 632 } 633 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds); 634 635 /* 636 * Sends IOCTL request to get the data rate. 637 * 638 * This function allocates the IOCTL request buffer, fills it 639 * with requisite parameters and calls the IOCTL handler. 640 */ 641 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate) 642 { 643 int ret; 644 645 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY, 646 HostCmd_ACT_GEN_GET, 0, NULL, true); 647 648 if (!ret) { 649 if (priv->is_data_rate_auto) 650 *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate, 651 priv->tx_htinfo); 652 else 653 *rate = priv->data_rate; 654 } 655 656 return ret; 657 } 658 659 /* 660 * IOCTL request handler to set tx power configuration. 661 * 662 * This function prepares the correct firmware command and 663 * issues it. 664 * 665 * For non-auto power mode, all the following power groups are set - 666 * - Modulation class HR/DSSS 667 * - Modulation class OFDM 668 * - Modulation class HTBW20 669 * - Modulation class HTBW40 670 */ 671 int mwifiex_set_tx_power(struct mwifiex_private *priv, 672 struct mwifiex_power_cfg *power_cfg) 673 { 674 int ret; 675 struct host_cmd_ds_txpwr_cfg *txp_cfg; 676 struct mwifiex_types_power_group *pg_tlv; 677 struct mwifiex_power_group *pg; 678 u8 *buf; 679 u16 dbm = 0; 680 681 if (!power_cfg->is_power_auto) { 682 dbm = (u16) power_cfg->power_level; 683 if ((dbm < priv->min_tx_power_level) || 684 (dbm > priv->max_tx_power_level)) { 685 mwifiex_dbg(priv->adapter, ERROR, 686 "txpower value %d dBm\t" 687 "is out of range (%d dBm-%d dBm)\n", 688 dbm, priv->min_tx_power_level, 689 priv->max_tx_power_level); 690 return -1; 691 } 692 } 693 buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL); 694 if (!buf) 695 return -ENOMEM; 696 697 txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf; 698 txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET); 699 if (!power_cfg->is_power_auto) { 700 u16 dbm_min = power_cfg->is_power_fixed ? 701 dbm : priv->min_tx_power_level; 702 703 txp_cfg->mode = cpu_to_le32(1); 704 pg_tlv = (struct mwifiex_types_power_group *) 705 (buf + sizeof(struct host_cmd_ds_txpwr_cfg)); 706 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP); 707 pg_tlv->length = 708 cpu_to_le16(4 * sizeof(struct mwifiex_power_group)); 709 pg = (struct mwifiex_power_group *) 710 (buf + sizeof(struct host_cmd_ds_txpwr_cfg) 711 + sizeof(struct mwifiex_types_power_group)); 712 /* Power group for modulation class HR/DSSS */ 713 pg->first_rate_code = 0x00; 714 pg->last_rate_code = 0x03; 715 pg->modulation_class = MOD_CLASS_HR_DSSS; 716 pg->power_step = 0; 717 pg->power_min = (s8) dbm_min; 718 pg->power_max = (s8) dbm; 719 pg++; 720 /* Power group for modulation class OFDM */ 721 pg->first_rate_code = 0x00; 722 pg->last_rate_code = 0x07; 723 pg->modulation_class = MOD_CLASS_OFDM; 724 pg->power_step = 0; 725 pg->power_min = (s8) dbm_min; 726 pg->power_max = (s8) dbm; 727 pg++; 728 /* Power group for modulation class HTBW20 */ 729 pg->first_rate_code = 0x00; 730 pg->last_rate_code = 0x20; 731 pg->modulation_class = MOD_CLASS_HT; 732 pg->power_step = 0; 733 pg->power_min = (s8) dbm_min; 734 pg->power_max = (s8) dbm; 735 pg->ht_bandwidth = HT_BW_20; 736 pg++; 737 /* Power group for modulation class HTBW40 */ 738 pg->first_rate_code = 0x00; 739 pg->last_rate_code = 0x20; 740 pg->modulation_class = MOD_CLASS_HT; 741 pg->power_step = 0; 742 pg->power_min = (s8) dbm_min; 743 pg->power_max = (s8) dbm; 744 pg->ht_bandwidth = HT_BW_40; 745 } 746 ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG, 747 HostCmd_ACT_GEN_SET, 0, buf, true); 748 749 kfree(buf); 750 return ret; 751 } 752 753 /* 754 * IOCTL request handler to get power save mode. 755 * 756 * This function prepares the correct firmware command and 757 * issues it. 758 */ 759 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode) 760 { 761 int ret; 762 struct mwifiex_adapter *adapter = priv->adapter; 763 u16 sub_cmd; 764 765 if (*ps_mode) 766 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; 767 else 768 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; 769 sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS; 770 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 771 sub_cmd, BITMAP_STA_PS, NULL, true); 772 if ((!ret) && (sub_cmd == DIS_AUTO_PS)) 773 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 774 GET_PS, 0, NULL, false); 775 776 return ret; 777 } 778 779 /* 780 * IOCTL request handler to set/reset WPA IE. 781 * 782 * The supplied WPA IE is treated as a opaque buffer. Only the first field 783 * is checked to determine WPA version. If buffer length is zero, the existing 784 * WPA IE is reset. 785 */ 786 static int mwifiex_set_wpa_ie(struct mwifiex_private *priv, 787 u8 *ie_data_ptr, u16 ie_len) 788 { 789 if (ie_len) { 790 if (ie_len > sizeof(priv->wpa_ie)) { 791 mwifiex_dbg(priv->adapter, ERROR, 792 "failed to copy WPA IE, too big\n"); 793 return -1; 794 } 795 memcpy(priv->wpa_ie, ie_data_ptr, ie_len); 796 priv->wpa_ie_len = ie_len; 797 mwifiex_dbg(priv->adapter, CMD, 798 "cmd: Set Wpa_ie_len=%d IE=%#x\n", 799 priv->wpa_ie_len, priv->wpa_ie[0]); 800 801 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) { 802 priv->sec_info.wpa_enabled = true; 803 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) { 804 priv->sec_info.wpa2_enabled = true; 805 } else { 806 priv->sec_info.wpa_enabled = false; 807 priv->sec_info.wpa2_enabled = false; 808 } 809 } else { 810 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie)); 811 priv->wpa_ie_len = 0; 812 mwifiex_dbg(priv->adapter, INFO, 813 "info: reset wpa_ie_len=%d IE=%#x\n", 814 priv->wpa_ie_len, priv->wpa_ie[0]); 815 priv->sec_info.wpa_enabled = false; 816 priv->sec_info.wpa2_enabled = false; 817 } 818 819 return 0; 820 } 821 822 /* 823 * IOCTL request handler to set/reset WAPI IE. 824 * 825 * The supplied WAPI IE is treated as a opaque buffer. Only the first field 826 * is checked to internally enable WAPI. If buffer length is zero, the existing 827 * WAPI IE is reset. 828 */ 829 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv, 830 u8 *ie_data_ptr, u16 ie_len) 831 { 832 if (ie_len) { 833 if (ie_len > sizeof(priv->wapi_ie)) { 834 mwifiex_dbg(priv->adapter, ERROR, 835 "info: failed to copy WAPI IE, too big\n"); 836 return -1; 837 } 838 memcpy(priv->wapi_ie, ie_data_ptr, ie_len); 839 priv->wapi_ie_len = ie_len; 840 mwifiex_dbg(priv->adapter, CMD, 841 "cmd: Set wapi_ie_len=%d IE=%#x\n", 842 priv->wapi_ie_len, priv->wapi_ie[0]); 843 844 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY) 845 priv->sec_info.wapi_enabled = true; 846 } else { 847 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie)); 848 priv->wapi_ie_len = ie_len; 849 mwifiex_dbg(priv->adapter, INFO, 850 "info: Reset wapi_ie_len=%d IE=%#x\n", 851 priv->wapi_ie_len, priv->wapi_ie[0]); 852 priv->sec_info.wapi_enabled = false; 853 } 854 return 0; 855 } 856 857 /* 858 * IOCTL request handler to set/reset WPS IE. 859 * 860 * The supplied WPS IE is treated as a opaque buffer. Only the first field 861 * is checked to internally enable WPS. If buffer length is zero, the existing 862 * WPS IE is reset. 863 */ 864 static int mwifiex_set_wps_ie(struct mwifiex_private *priv, 865 u8 *ie_data_ptr, u16 ie_len) 866 { 867 if (ie_len) { 868 if (ie_len > MWIFIEX_MAX_VSIE_LEN) { 869 mwifiex_dbg(priv->adapter, ERROR, 870 "info: failed to copy WPS IE, too big\n"); 871 return -1; 872 } 873 874 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL); 875 if (!priv->wps_ie) 876 return -ENOMEM; 877 878 memcpy(priv->wps_ie, ie_data_ptr, ie_len); 879 priv->wps_ie_len = ie_len; 880 mwifiex_dbg(priv->adapter, CMD, 881 "cmd: Set wps_ie_len=%d IE=%#x\n", 882 priv->wps_ie_len, priv->wps_ie[0]); 883 } else { 884 kfree(priv->wps_ie); 885 priv->wps_ie_len = ie_len; 886 mwifiex_dbg(priv->adapter, INFO, 887 "info: Reset wps_ie_len=%d\n", priv->wps_ie_len); 888 } 889 return 0; 890 } 891 892 /* 893 * IOCTL request handler to set WAPI key. 894 * 895 * This function prepares the correct firmware command and 896 * issues it. 897 */ 898 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv, 899 struct mwifiex_ds_encrypt_key *encrypt_key) 900 { 901 902 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 903 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, 904 encrypt_key, true); 905 } 906 907 /* 908 * IOCTL request handler to set WEP network key. 909 * 910 * This function prepares the correct firmware command and 911 * issues it, after validation checks. 912 */ 913 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv, 914 struct mwifiex_ds_encrypt_key *encrypt_key) 915 { 916 struct mwifiex_adapter *adapter = priv->adapter; 917 int ret; 918 struct mwifiex_wep_key *wep_key; 919 int index; 920 921 if (priv->wep_key_curr_index >= NUM_WEP_KEYS) 922 priv->wep_key_curr_index = 0; 923 wep_key = &priv->wep_key[priv->wep_key_curr_index]; 924 index = encrypt_key->key_index; 925 if (encrypt_key->key_disable) { 926 priv->sec_info.wep_enabled = 0; 927 } else if (!encrypt_key->key_len) { 928 /* Copy the required key as the current key */ 929 wep_key = &priv->wep_key[index]; 930 if (!wep_key->key_length) { 931 mwifiex_dbg(adapter, ERROR, 932 "key not set, so cannot enable it\n"); 933 return -1; 934 } 935 936 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) { 937 memcpy(encrypt_key->key_material, 938 wep_key->key_material, wep_key->key_length); 939 encrypt_key->key_len = wep_key->key_length; 940 } 941 942 priv->wep_key_curr_index = (u16) index; 943 priv->sec_info.wep_enabled = 1; 944 } else { 945 wep_key = &priv->wep_key[index]; 946 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 947 /* Copy the key in the driver */ 948 memcpy(wep_key->key_material, 949 encrypt_key->key_material, 950 encrypt_key->key_len); 951 wep_key->key_index = index; 952 wep_key->key_length = encrypt_key->key_len; 953 priv->sec_info.wep_enabled = 1; 954 } 955 if (wep_key->key_length) { 956 void *enc_key; 957 958 if (encrypt_key->key_disable) { 959 memset(&priv->wep_key[index], 0, 960 sizeof(struct mwifiex_wep_key)); 961 goto done; 962 } 963 964 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) 965 enc_key = encrypt_key; 966 else 967 enc_key = NULL; 968 969 /* Send request to firmware */ 970 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 971 HostCmd_ACT_GEN_SET, 0, enc_key, false); 972 if (ret) 973 return ret; 974 } 975 976 done: 977 if (priv->sec_info.wep_enabled) 978 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; 979 else 980 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; 981 982 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 983 HostCmd_ACT_GEN_SET, 0, 984 &priv->curr_pkt_filter, true); 985 986 return ret; 987 } 988 989 /* 990 * IOCTL request handler to set WPA key. 991 * 992 * This function prepares the correct firmware command and 993 * issues it, after validation checks. 994 * 995 * Current driver only supports key length of up to 32 bytes. 996 * 997 * This function can also be used to disable a currently set key. 998 */ 999 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv, 1000 struct mwifiex_ds_encrypt_key *encrypt_key) 1001 { 1002 int ret; 1003 u8 remove_key = false; 1004 struct host_cmd_ds_802_11_key_material *ibss_key; 1005 1006 /* Current driver only supports key length of up to 32 bytes */ 1007 if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) { 1008 mwifiex_dbg(priv->adapter, ERROR, 1009 "key length too long\n"); 1010 return -1; 1011 } 1012 1013 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { 1014 /* 1015 * IBSS/WPA-None uses only one key (Group) for both receiving 1016 * and sending unicast and multicast packets. 1017 */ 1018 /* Send the key as PTK to firmware */ 1019 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1020 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1021 HostCmd_ACT_GEN_SET, 1022 KEY_INFO_ENABLED, encrypt_key, false); 1023 if (ret) 1024 return ret; 1025 1026 ibss_key = &priv->aes_key; 1027 memset(ibss_key, 0, 1028 sizeof(struct host_cmd_ds_802_11_key_material)); 1029 /* Copy the key in the driver */ 1030 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material, 1031 encrypt_key->key_len); 1032 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len, 1033 sizeof(ibss_key->key_param_set.key_len)); 1034 ibss_key->key_param_set.key_type_id 1035 = cpu_to_le16(KEY_TYPE_ID_TKIP); 1036 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED); 1037 1038 /* Send the key as GTK to firmware */ 1039 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST; 1040 } 1041 1042 if (!encrypt_key->key_index) 1043 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1044 1045 if (remove_key) 1046 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1047 HostCmd_ACT_GEN_SET, 1048 !KEY_INFO_ENABLED, encrypt_key, true); 1049 else 1050 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1051 HostCmd_ACT_GEN_SET, 1052 KEY_INFO_ENABLED, encrypt_key, true); 1053 1054 return ret; 1055 } 1056 1057 /* 1058 * IOCTL request handler to set/get network keys. 1059 * 1060 * This is a generic key handling function which supports WEP, WPA 1061 * and WAPI. 1062 */ 1063 static int 1064 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv, 1065 struct mwifiex_ds_encrypt_key *encrypt_key) 1066 { 1067 int status; 1068 1069 if (encrypt_key->is_wapi_key) 1070 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key); 1071 else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104) 1072 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key); 1073 else 1074 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key); 1075 return status; 1076 } 1077 1078 /* 1079 * This function returns the driver version. 1080 */ 1081 int 1082 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version, 1083 int max_len) 1084 { 1085 union { 1086 __le32 l; 1087 u8 c[4]; 1088 } ver; 1089 char fw_ver[32]; 1090 1091 ver.l = cpu_to_le32(adapter->fw_release_number); 1092 sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]); 1093 1094 snprintf(version, max_len, driver_version, fw_ver); 1095 1096 mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version); 1097 1098 return 0; 1099 } 1100 1101 /* 1102 * Sends IOCTL request to set encoding parameters. 1103 * 1104 * This function allocates the IOCTL request buffer, fills it 1105 * with requisite parameters and calls the IOCTL handler. 1106 */ 1107 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp, 1108 const u8 *key, int key_len, u8 key_index, 1109 const u8 *mac_addr, int disable) 1110 { 1111 struct mwifiex_ds_encrypt_key encrypt_key; 1112 1113 memset(&encrypt_key, 0, sizeof(encrypt_key)); 1114 encrypt_key.key_len = key_len; 1115 encrypt_key.key_index = key_index; 1116 1117 if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC) 1118 encrypt_key.is_igtk_key = true; 1119 1120 if (!disable) { 1121 if (key_len) 1122 memcpy(encrypt_key.key_material, key, key_len); 1123 else 1124 encrypt_key.is_current_wep_key = true; 1125 1126 if (mac_addr) 1127 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); 1128 if (kp && kp->seq && kp->seq_len) { 1129 memcpy(encrypt_key.pn, kp->seq, kp->seq_len); 1130 encrypt_key.pn_len = kp->seq_len; 1131 encrypt_key.is_rx_seq_valid = true; 1132 } 1133 } else { 1134 encrypt_key.key_disable = true; 1135 if (mac_addr) 1136 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); 1137 } 1138 1139 return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key); 1140 } 1141 1142 /* 1143 * Sends IOCTL request to get extended version. 1144 * 1145 * This function allocates the IOCTL request buffer, fills it 1146 * with requisite parameters and calls the IOCTL handler. 1147 */ 1148 int 1149 mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel) 1150 { 1151 struct mwifiex_ver_ext ver_ext; 1152 1153 memset(&ver_ext, 0, sizeof(ver_ext)); 1154 ver_ext.version_str_sel = version_str_sel; 1155 if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT, 1156 HostCmd_ACT_GEN_GET, 0, &ver_ext, true)) 1157 return -1; 1158 1159 return 0; 1160 } 1161 1162 int 1163 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action, 1164 struct ieee80211_channel *chan, 1165 unsigned int duration) 1166 { 1167 struct host_cmd_ds_remain_on_chan roc_cfg; 1168 u8 sc; 1169 1170 memset(&roc_cfg, 0, sizeof(roc_cfg)); 1171 roc_cfg.action = cpu_to_le16(action); 1172 if (action == HostCmd_ACT_GEN_SET) { 1173 roc_cfg.band_cfg = chan->band; 1174 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT); 1175 roc_cfg.band_cfg |= (sc << 2); 1176 1177 roc_cfg.channel = 1178 ieee80211_frequency_to_channel(chan->center_freq); 1179 roc_cfg.duration = cpu_to_le32(duration); 1180 } 1181 if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN, 1182 action, 0, &roc_cfg, true)) { 1183 mwifiex_dbg(priv->adapter, ERROR, 1184 "failed to remain on channel\n"); 1185 return -1; 1186 } 1187 1188 return roc_cfg.status; 1189 } 1190 1191 /* 1192 * Sends IOCTL request to get statistics information. 1193 * 1194 * This function allocates the IOCTL request buffer, fills it 1195 * with requisite parameters and calls the IOCTL handler. 1196 */ 1197 int 1198 mwifiex_get_stats_info(struct mwifiex_private *priv, 1199 struct mwifiex_ds_get_stats *log) 1200 { 1201 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG, 1202 HostCmd_ACT_GEN_GET, 0, log, true); 1203 } 1204 1205 /* 1206 * IOCTL request handler to read/write register. 1207 * 1208 * This function prepares the correct firmware command and 1209 * issues it. 1210 * 1211 * Access to the following registers are supported - 1212 * - MAC 1213 * - BBP 1214 * - RF 1215 * - PMIC 1216 * - CAU 1217 */ 1218 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv, 1219 struct mwifiex_ds_reg_rw *reg_rw, 1220 u16 action) 1221 { 1222 u16 cmd_no; 1223 1224 switch (reg_rw->type) { 1225 case MWIFIEX_REG_MAC: 1226 cmd_no = HostCmd_CMD_MAC_REG_ACCESS; 1227 break; 1228 case MWIFIEX_REG_BBP: 1229 cmd_no = HostCmd_CMD_BBP_REG_ACCESS; 1230 break; 1231 case MWIFIEX_REG_RF: 1232 cmd_no = HostCmd_CMD_RF_REG_ACCESS; 1233 break; 1234 case MWIFIEX_REG_PMIC: 1235 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS; 1236 break; 1237 case MWIFIEX_REG_CAU: 1238 cmd_no = HostCmd_CMD_CAU_REG_ACCESS; 1239 break; 1240 default: 1241 return -1; 1242 } 1243 1244 return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true); 1245 } 1246 1247 /* 1248 * Sends IOCTL request to write to a register. 1249 * 1250 * This function allocates the IOCTL request buffer, fills it 1251 * with requisite parameters and calls the IOCTL handler. 1252 */ 1253 int 1254 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type, 1255 u32 reg_offset, u32 reg_value) 1256 { 1257 struct mwifiex_ds_reg_rw reg_rw; 1258 1259 reg_rw.type = reg_type; 1260 reg_rw.offset = reg_offset; 1261 reg_rw.value = reg_value; 1262 1263 return mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_SET); 1264 } 1265 1266 /* 1267 * Sends IOCTL request to read from a register. 1268 * 1269 * This function allocates the IOCTL request buffer, fills it 1270 * with requisite parameters and calls the IOCTL handler. 1271 */ 1272 int 1273 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type, 1274 u32 reg_offset, u32 *value) 1275 { 1276 int ret; 1277 struct mwifiex_ds_reg_rw reg_rw; 1278 1279 reg_rw.type = reg_type; 1280 reg_rw.offset = reg_offset; 1281 ret = mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_GET); 1282 1283 if (ret) 1284 goto done; 1285 1286 *value = reg_rw.value; 1287 1288 done: 1289 return ret; 1290 } 1291 1292 /* 1293 * Sends IOCTL request to read from EEPROM. 1294 * 1295 * This function allocates the IOCTL request buffer, fills it 1296 * with requisite parameters and calls the IOCTL handler. 1297 */ 1298 int 1299 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes, 1300 u8 *value) 1301 { 1302 int ret; 1303 struct mwifiex_ds_read_eeprom rd_eeprom; 1304 1305 rd_eeprom.offset = offset; 1306 rd_eeprom.byte_count = bytes; 1307 1308 /* Send request to firmware */ 1309 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS, 1310 HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true); 1311 1312 if (!ret) 1313 memcpy(value, rd_eeprom.value, min((u16)MAX_EEPROM_DATA, 1314 rd_eeprom.byte_count)); 1315 return ret; 1316 } 1317 1318 /* 1319 * This function sets a generic IE. In addition to generic IE, it can 1320 * also handle WPA, WPA2 and WAPI IEs. 1321 */ 1322 static int 1323 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, 1324 u16 ie_len) 1325 { 1326 struct ieee_types_vendor_header *pvendor_ie; 1327 const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 }; 1328 const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 }; 1329 u16 unparsed_len = ie_len, cur_ie_len; 1330 1331 /* If the passed length is zero, reset the buffer */ 1332 if (!ie_len) { 1333 priv->gen_ie_buf_len = 0; 1334 priv->wps.session_enable = false; 1335 return 0; 1336 } else if (!ie_data_ptr || 1337 ie_len <= sizeof(struct ieee_types_header)) { 1338 return -1; 1339 } 1340 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; 1341 1342 while (pvendor_ie) { 1343 cur_ie_len = pvendor_ie->len + sizeof(struct ieee_types_header); 1344 1345 if (pvendor_ie->element_id == WLAN_EID_RSN) { 1346 /* IE is a WPA/WPA2 IE so call set_wpa function */ 1347 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, cur_ie_len); 1348 priv->wps.session_enable = false; 1349 goto next_ie; 1350 } 1351 1352 if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) { 1353 /* IE is a WAPI IE so call set_wapi function */ 1354 mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie, 1355 cur_ie_len); 1356 goto next_ie; 1357 } 1358 1359 if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) { 1360 /* Test to see if it is a WPA IE, if not, then 1361 * it is a gen IE 1362 */ 1363 if (!memcmp(&pvendor_ie->oui, wpa_oui, 1364 sizeof(wpa_oui))) { 1365 /* IE is a WPA/WPA2 IE so call set_wpa function 1366 */ 1367 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, 1368 cur_ie_len); 1369 priv->wps.session_enable = false; 1370 goto next_ie; 1371 } 1372 1373 if (!memcmp(&pvendor_ie->oui, wps_oui, 1374 sizeof(wps_oui))) { 1375 /* Test to see if it is a WPS IE, 1376 * if so, enable wps session flag 1377 */ 1378 priv->wps.session_enable = true; 1379 mwifiex_dbg(priv->adapter, MSG, 1380 "WPS Session Enabled.\n"); 1381 mwifiex_set_wps_ie(priv, (u8 *)pvendor_ie, 1382 cur_ie_len); 1383 goto next_ie; 1384 } 1385 } 1386 1387 /* Saved in gen_ie, such as P2P IE.etc.*/ 1388 1389 /* Verify that the passed length is not larger than the 1390 * available space remaining in the buffer 1391 */ 1392 if (cur_ie_len < 1393 (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) { 1394 /* Append the passed data to the end 1395 * of the genIeBuffer 1396 */ 1397 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, 1398 (u8 *)pvendor_ie, cur_ie_len); 1399 /* Increment the stored buffer length by the 1400 * size passed 1401 */ 1402 priv->gen_ie_buf_len += cur_ie_len; 1403 } 1404 1405 next_ie: 1406 unparsed_len -= cur_ie_len; 1407 1408 if (unparsed_len <= sizeof(struct ieee_types_header)) 1409 pvendor_ie = NULL; 1410 else 1411 pvendor_ie = (struct ieee_types_vendor_header *) 1412 (((u8 *)pvendor_ie) + cur_ie_len); 1413 } 1414 1415 return 0; 1416 } 1417 1418 /* 1419 * IOCTL request handler to set/get generic IE. 1420 * 1421 * In addition to various generic IEs, this function can also be 1422 * used to set the ARP filter. 1423 */ 1424 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv, 1425 struct mwifiex_ds_misc_gen_ie *gen_ie, 1426 u16 action) 1427 { 1428 struct mwifiex_adapter *adapter = priv->adapter; 1429 1430 switch (gen_ie->type) { 1431 case MWIFIEX_IE_TYPE_GEN_IE: 1432 if (action == HostCmd_ACT_GEN_GET) { 1433 gen_ie->len = priv->wpa_ie_len; 1434 memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len); 1435 } else { 1436 mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data, 1437 (u16) gen_ie->len); 1438 } 1439 break; 1440 case MWIFIEX_IE_TYPE_ARP_FILTER: 1441 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter)); 1442 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) { 1443 adapter->arp_filter_size = 0; 1444 mwifiex_dbg(adapter, ERROR, 1445 "invalid ARP filter size\n"); 1446 return -1; 1447 } else { 1448 memcpy(adapter->arp_filter, gen_ie->ie_data, 1449 gen_ie->len); 1450 adapter->arp_filter_size = gen_ie->len; 1451 } 1452 break; 1453 default: 1454 mwifiex_dbg(adapter, ERROR, "invalid IE type\n"); 1455 return -1; 1456 } 1457 return 0; 1458 } 1459 1460 /* 1461 * Sends IOCTL request to set a generic IE. 1462 * 1463 * This function allocates the IOCTL request buffer, fills it 1464 * with requisite parameters and calls the IOCTL handler. 1465 */ 1466 int 1467 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len) 1468 { 1469 struct mwifiex_ds_misc_gen_ie gen_ie; 1470 1471 if (ie_len > IEEE_MAX_IE_SIZE) 1472 return -EFAULT; 1473 1474 gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE; 1475 gen_ie.len = ie_len; 1476 memcpy(gen_ie.ie_data, ie, ie_len); 1477 if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET)) 1478 return -EFAULT; 1479 1480 return 0; 1481 } 1482 1483 /* This function get Host Sleep wake up reason. 1484 * 1485 */ 1486 int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action, 1487 int cmd_type, 1488 struct mwifiex_ds_wakeup_reason *wakeup_reason) 1489 { 1490 int status = 0; 1491 1492 status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON, 1493 HostCmd_ACT_GEN_GET, 0, wakeup_reason, 1494 cmd_type == MWIFIEX_SYNC_CMD); 1495 1496 return status; 1497 } 1498 1499 int mwifiex_get_chan_info(struct mwifiex_private *priv, 1500 struct mwifiex_channel_band *channel_band) 1501 { 1502 int status = 0; 1503 1504 status = mwifiex_send_cmd(priv, HostCmd_CMD_STA_CONFIGURE, 1505 HostCmd_ACT_GEN_GET, 0, channel_band, 1506 MWIFIEX_SYNC_CMD); 1507 1508 return status; 1509 } 1510