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 int ret; 150 151 rcu_read_lock(); 152 ies = rcu_dereference(bss->ies); 153 beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC); 154 beacon_ie_len = ies->len; 155 bss_desc->timestamp = ies->tsf; 156 rcu_read_unlock(); 157 158 if (!beacon_ie) { 159 mwifiex_dbg(priv->adapter, ERROR, 160 " failed to alloc beacon_ie\n"); 161 return -ENOMEM; 162 } 163 164 memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN); 165 bss_desc->rssi = bss->signal; 166 /* The caller of this function will free beacon_ie */ 167 bss_desc->beacon_buf = beacon_ie; 168 bss_desc->beacon_buf_size = beacon_ie_len; 169 bss_desc->beacon_period = bss->beacon_interval; 170 bss_desc->cap_info_bitmap = bss->capability; 171 bss_desc->bss_band = bss_priv->band; 172 bss_desc->fw_tsf = bss_priv->fw_tsf; 173 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) { 174 mwifiex_dbg(priv->adapter, INFO, 175 "info: InterpretIE: AP WEP enabled\n"); 176 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP; 177 } else { 178 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL; 179 } 180 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS) 181 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC; 182 else 183 bss_desc->bss_mode = NL80211_IFTYPE_STATION; 184 185 /* Disable 11ac by default. Enable it only where there 186 * exist VHT_CAP IE in AP beacon 187 */ 188 bss_desc->disable_11ac = true; 189 190 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT) 191 bss_desc->sensed_11h = true; 192 193 ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc); 194 if (ret) 195 return ret; 196 197 /* Update HT40 capability based on current channel information */ 198 if (bss_desc->bcn_ht_oper && bss_desc->bcn_ht_cap) { 199 u8 ht_param = bss_desc->bcn_ht_oper->ht_param; 200 u8 radio = mwifiex_band_to_radio_type(bss_desc->bss_band); 201 struct ieee80211_supported_band *sband = 202 priv->wdev.wiphy->bands[radio]; 203 int freq = ieee80211_channel_to_frequency(bss_desc->channel, 204 radio); 205 struct ieee80211_channel *chan = 206 ieee80211_get_channel(priv->adapter->wiphy, freq); 207 208 switch (ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { 209 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: 210 if (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) { 211 sband->ht_cap.cap &= 212 ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 213 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40; 214 } else { 215 sband->ht_cap.cap |= 216 IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 217 IEEE80211_HT_CAP_SGI_40; 218 } 219 break; 220 case IEEE80211_HT_PARAM_CHA_SEC_BELOW: 221 if (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) { 222 sband->ht_cap.cap &= 223 ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 224 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40; 225 } else { 226 sband->ht_cap.cap |= 227 IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 228 IEEE80211_HT_CAP_SGI_40; 229 } 230 break; 231 } 232 } 233 234 return 0; 235 } 236 237 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv) 238 { 239 if (priv->adapter->dt_node) { 240 char txpwr[] = {"marvell,00_txpwrlimit"}; 241 242 memcpy(&txpwr[8], priv->adapter->country_code, 2); 243 mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr); 244 } 245 } 246 247 static int mwifiex_process_country_ie(struct mwifiex_private *priv, 248 struct cfg80211_bss *bss) 249 { 250 const u8 *country_ie; 251 u8 country_ie_len; 252 struct mwifiex_802_11d_domain_reg *domain_info = 253 &priv->adapter->domain_reg; 254 255 rcu_read_lock(); 256 country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); 257 if (!country_ie) { 258 rcu_read_unlock(); 259 return 0; 260 } 261 262 country_ie_len = country_ie[1]; 263 if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) { 264 rcu_read_unlock(); 265 return 0; 266 } 267 268 if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) { 269 rcu_read_unlock(); 270 mwifiex_dbg(priv->adapter, INFO, 271 "11D: skip setting domain info in FW\n"); 272 return 0; 273 } 274 memcpy(priv->adapter->country_code, &country_ie[2], 2); 275 276 domain_info->country_code[0] = country_ie[2]; 277 domain_info->country_code[1] = country_ie[3]; 278 domain_info->country_code[2] = ' '; 279 280 country_ie_len -= IEEE80211_COUNTRY_STRING_LEN; 281 282 domain_info->no_of_triplet = 283 country_ie_len / sizeof(struct ieee80211_country_ie_triplet); 284 285 memcpy((u8 *)domain_info->triplet, 286 &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len); 287 288 rcu_read_unlock(); 289 290 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, 291 HostCmd_ACT_GEN_SET, 0, NULL, false)) { 292 mwifiex_dbg(priv->adapter, ERROR, 293 "11D: setting domain info in FW fail\n"); 294 return -1; 295 } 296 297 mwifiex_dnld_txpwr_table(priv); 298 299 return 0; 300 } 301 302 /* 303 * In Ad-Hoc mode, the IBSS is created if not found in scan list. 304 * In both Ad-Hoc and infra mode, an deauthentication is performed 305 * first. 306 */ 307 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, 308 struct cfg80211_ssid *req_ssid) 309 { 310 int ret; 311 struct mwifiex_adapter *adapter = priv->adapter; 312 struct mwifiex_bssdescriptor *bss_desc = NULL; 313 314 priv->scan_block = false; 315 316 if (bss) { 317 if (adapter->region_code == 0x00) 318 mwifiex_process_country_ie(priv, bss); 319 320 /* Allocate and fill new bss descriptor */ 321 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor), 322 GFP_KERNEL); 323 if (!bss_desc) 324 return -ENOMEM; 325 326 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc); 327 if (ret) 328 goto done; 329 } 330 331 if (priv->bss_mode == NL80211_IFTYPE_STATION || 332 priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) { 333 u8 config_bands; 334 335 if (!bss_desc) 336 return -1; 337 338 if (mwifiex_band_to_radio_type(bss_desc->bss_band) == 339 HostCmd_SCAN_RADIO_TYPE_BG) { 340 config_bands = BAND_B | BAND_G | BAND_GN; 341 } else { 342 config_bands = BAND_A | BAND_AN; 343 if (adapter->fw_bands & BAND_AAC) 344 config_bands |= BAND_AAC; 345 } 346 347 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) 348 adapter->config_bands = config_bands; 349 350 ret = mwifiex_check_network_compatibility(priv, bss_desc); 351 if (ret) 352 goto done; 353 354 if (mwifiex_11h_get_csa_closed_channel(priv) == 355 (u8)bss_desc->channel) { 356 mwifiex_dbg(adapter, ERROR, 357 "Attempt to reconnect on csa closed chan(%d)\n", 358 bss_desc->channel); 359 ret = -1; 360 goto done; 361 } 362 363 mwifiex_dbg(adapter, INFO, 364 "info: SSID found in scan list ...\t" 365 "associating...\n"); 366 367 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 368 if (netif_carrier_ok(priv->netdev)) 369 netif_carrier_off(priv->netdev); 370 371 /* Clear any past association response stored for 372 * application retrieval */ 373 priv->assoc_rsp_size = 0; 374 ret = mwifiex_associate(priv, bss_desc); 375 376 /* If auth type is auto and association fails using open mode, 377 * try to connect using shared mode */ 378 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && 379 priv->sec_info.is_authtype_auto && 380 priv->sec_info.wep_enabled) { 381 priv->sec_info.authentication_mode = 382 NL80211_AUTHTYPE_SHARED_KEY; 383 ret = mwifiex_associate(priv, bss_desc); 384 } 385 386 if (bss) 387 cfg80211_put_bss(priv->adapter->wiphy, bss); 388 } else { 389 /* Adhoc mode */ 390 /* If the requested SSID matches current SSID, return */ 391 if (bss_desc && bss_desc->ssid.ssid_len && 392 (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor. 393 ssid, &bss_desc->ssid))) { 394 ret = 0; 395 goto done; 396 } 397 398 priv->adhoc_is_link_sensed = false; 399 400 ret = mwifiex_check_network_compatibility(priv, bss_desc); 401 402 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 403 if (netif_carrier_ok(priv->netdev)) 404 netif_carrier_off(priv->netdev); 405 406 if (!ret) { 407 mwifiex_dbg(adapter, INFO, 408 "info: network found in scan\t" 409 " list. Joining...\n"); 410 ret = mwifiex_adhoc_join(priv, bss_desc); 411 if (bss) 412 cfg80211_put_bss(priv->adapter->wiphy, bss); 413 } else { 414 mwifiex_dbg(adapter, INFO, 415 "info: Network not found in\t" 416 "the list, creating adhoc with ssid = %s\n", 417 req_ssid->ssid); 418 ret = mwifiex_adhoc_start(priv, req_ssid); 419 } 420 } 421 422 done: 423 /* beacon_ie buffer was allocated in function 424 * mwifiex_fill_new_bss_desc(). Free it now. 425 */ 426 if (bss_desc) 427 kfree(bss_desc->beacon_buf); 428 kfree(bss_desc); 429 430 if (ret < 0) 431 priv->attempted_bss_desc = NULL; 432 433 return ret; 434 } 435 436 /* 437 * IOCTL request handler to set host sleep configuration. 438 * 439 * This function prepares the correct firmware command and 440 * issues it. 441 */ 442 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action, 443 int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg) 444 445 { 446 struct mwifiex_adapter *adapter = priv->adapter; 447 int status = 0; 448 u32 prev_cond = 0; 449 450 if (!hs_cfg) 451 return -ENOMEM; 452 453 switch (action) { 454 case HostCmd_ACT_GEN_SET: 455 if (adapter->pps_uapsd_mode) { 456 mwifiex_dbg(adapter, INFO, 457 "info: Host Sleep IOCTL\t" 458 "is blocked in UAPSD/PPS mode\n"); 459 status = -1; 460 break; 461 } 462 if (hs_cfg->is_invoke_hostcmd) { 463 if (hs_cfg->conditions == HS_CFG_CANCEL) { 464 if (!adapter->is_hs_configured) 465 /* Already cancelled */ 466 break; 467 /* Save previous condition */ 468 prev_cond = le32_to_cpu(adapter->hs_cfg 469 .conditions); 470 adapter->hs_cfg.conditions = 471 cpu_to_le32(hs_cfg->conditions); 472 } else if (hs_cfg->conditions) { 473 adapter->hs_cfg.conditions = 474 cpu_to_le32(hs_cfg->conditions); 475 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 476 if (hs_cfg->gap) 477 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 478 } else if (adapter->hs_cfg.conditions == 479 cpu_to_le32(HS_CFG_CANCEL)) { 480 /* Return failure if no parameters for HS 481 enable */ 482 status = -1; 483 break; 484 } 485 486 status = mwifiex_send_cmd(priv, 487 HostCmd_CMD_802_11_HS_CFG_ENH, 488 HostCmd_ACT_GEN_SET, 0, 489 &adapter->hs_cfg, 490 cmd_type == MWIFIEX_SYNC_CMD); 491 492 if (hs_cfg->conditions == HS_CFG_CANCEL) 493 /* Restore previous condition */ 494 adapter->hs_cfg.conditions = 495 cpu_to_le32(prev_cond); 496 } else { 497 adapter->hs_cfg.conditions = 498 cpu_to_le32(hs_cfg->conditions); 499 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 500 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 501 } 502 break; 503 case HostCmd_ACT_GEN_GET: 504 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions); 505 hs_cfg->gpio = adapter->hs_cfg.gpio; 506 hs_cfg->gap = adapter->hs_cfg.gap; 507 break; 508 default: 509 status = -1; 510 break; 511 } 512 513 return status; 514 } 515 516 /* 517 * Sends IOCTL request to cancel the existing Host Sleep configuration. 518 * 519 * This function allocates the IOCTL request buffer, fills it 520 * with requisite parameters and calls the IOCTL handler. 521 */ 522 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type) 523 { 524 struct mwifiex_ds_hs_cfg hscfg; 525 526 hscfg.conditions = HS_CFG_CANCEL; 527 hscfg.is_invoke_hostcmd = true; 528 529 return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, 530 cmd_type, &hscfg); 531 } 532 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs); 533 534 /* 535 * Sends IOCTL request to cancel the existing Host Sleep configuration. 536 * 537 * This function allocates the IOCTL request buffer, fills it 538 * with requisite parameters and calls the IOCTL handler. 539 */ 540 int mwifiex_enable_hs(struct mwifiex_adapter *adapter) 541 { 542 struct mwifiex_ds_hs_cfg hscfg; 543 struct mwifiex_private *priv; 544 int i; 545 546 if (disconnect_on_suspend) { 547 for (i = 0; i < adapter->priv_num; i++) { 548 priv = adapter->priv[i]; 549 if (priv) 550 mwifiex_deauthenticate(priv, NULL); 551 } 552 } 553 554 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 555 556 if (priv && priv->sched_scanning) { 557 #ifdef CONFIG_PM 558 if (priv->wdev.wiphy->wowlan_config && 559 !priv->wdev.wiphy->wowlan_config->nd_config) { 560 #endif 561 mwifiex_dbg(adapter, CMD, "aborting bgscan!\n"); 562 mwifiex_stop_bg_scan(priv); 563 cfg80211_sched_scan_stopped(priv->wdev.wiphy); 564 #ifdef CONFIG_PM 565 } 566 #endif 567 } 568 569 if (adapter->hs_activated) { 570 mwifiex_dbg(adapter, CMD, 571 "cmd: HS Already activated\n"); 572 return true; 573 } 574 575 adapter->hs_activate_wait_q_woken = false; 576 577 memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg)); 578 hscfg.is_invoke_hostcmd = true; 579 580 adapter->hs_enabling = true; 581 mwifiex_cancel_all_pending_cmd(adapter); 582 583 if (mwifiex_set_hs_params(mwifiex_get_priv(adapter, 584 MWIFIEX_BSS_ROLE_STA), 585 HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD, 586 &hscfg)) { 587 mwifiex_dbg(adapter, ERROR, 588 "IOCTL request HS enable failed\n"); 589 return false; 590 } 591 592 if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q, 593 adapter->hs_activate_wait_q_woken, 594 (10 * HZ)) <= 0) { 595 mwifiex_dbg(adapter, ERROR, 596 "hs_activate_wait_q terminated\n"); 597 return false; 598 } 599 600 return true; 601 } 602 EXPORT_SYMBOL_GPL(mwifiex_enable_hs); 603 604 /* 605 * IOCTL request handler to get BSS information. 606 * 607 * This function collates the information from different driver structures 608 * to send to the user. 609 */ 610 int mwifiex_get_bss_info(struct mwifiex_private *priv, 611 struct mwifiex_bss_info *info) 612 { 613 struct mwifiex_adapter *adapter = priv->adapter; 614 struct mwifiex_bssdescriptor *bss_desc; 615 616 if (!info) 617 return -1; 618 619 bss_desc = &priv->curr_bss_params.bss_descriptor; 620 621 info->bss_mode = priv->bss_mode; 622 623 memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid)); 624 625 memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN); 626 627 info->bss_chan = bss_desc->channel; 628 629 memcpy(info->country_code, adapter->country_code, 630 IEEE80211_COUNTRY_STRING_LEN); 631 632 info->media_connected = priv->media_connected; 633 634 info->max_power_level = priv->max_tx_power_level; 635 info->min_power_level = priv->min_tx_power_level; 636 637 info->adhoc_state = priv->adhoc_state; 638 639 info->bcn_nf_last = priv->bcn_nf_last; 640 641 if (priv->sec_info.wep_enabled) 642 info->wep_status = true; 643 else 644 info->wep_status = false; 645 646 info->is_hs_configured = adapter->is_hs_configured; 647 info->is_deep_sleep = adapter->is_deep_sleep; 648 649 return 0; 650 } 651 652 /* 653 * The function disables auto deep sleep mode. 654 */ 655 int mwifiex_disable_auto_ds(struct mwifiex_private *priv) 656 { 657 struct mwifiex_ds_auto_ds auto_ds; 658 659 auto_ds.auto_ds = DEEP_SLEEP_OFF; 660 661 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 662 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true); 663 } 664 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds); 665 666 /* 667 * Sends IOCTL request to get the data rate. 668 * 669 * This function allocates the IOCTL request buffer, fills it 670 * with requisite parameters and calls the IOCTL handler. 671 */ 672 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate) 673 { 674 int ret; 675 676 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY, 677 HostCmd_ACT_GEN_GET, 0, NULL, true); 678 679 if (!ret) { 680 if (priv->is_data_rate_auto) 681 *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate, 682 priv->tx_htinfo); 683 else 684 *rate = priv->data_rate; 685 } 686 687 return ret; 688 } 689 690 /* 691 * IOCTL request handler to set tx power configuration. 692 * 693 * This function prepares the correct firmware command and 694 * issues it. 695 * 696 * For non-auto power mode, all the following power groups are set - 697 * - Modulation class HR/DSSS 698 * - Modulation class OFDM 699 * - Modulation class HTBW20 700 * - Modulation class HTBW40 701 */ 702 int mwifiex_set_tx_power(struct mwifiex_private *priv, 703 struct mwifiex_power_cfg *power_cfg) 704 { 705 int ret; 706 struct host_cmd_ds_txpwr_cfg *txp_cfg; 707 struct mwifiex_types_power_group *pg_tlv; 708 struct mwifiex_power_group *pg; 709 u8 *buf; 710 u16 dbm = 0; 711 712 if (!power_cfg->is_power_auto) { 713 dbm = (u16) power_cfg->power_level; 714 if ((dbm < priv->min_tx_power_level) || 715 (dbm > priv->max_tx_power_level)) { 716 mwifiex_dbg(priv->adapter, ERROR, 717 "txpower value %d dBm\t" 718 "is out of range (%d dBm-%d dBm)\n", 719 dbm, priv->min_tx_power_level, 720 priv->max_tx_power_level); 721 return -1; 722 } 723 } 724 buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL); 725 if (!buf) 726 return -ENOMEM; 727 728 txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf; 729 txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET); 730 if (!power_cfg->is_power_auto) { 731 txp_cfg->mode = cpu_to_le32(1); 732 pg_tlv = (struct mwifiex_types_power_group *) 733 (buf + sizeof(struct host_cmd_ds_txpwr_cfg)); 734 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP); 735 pg_tlv->length = 736 cpu_to_le16(4 * sizeof(struct mwifiex_power_group)); 737 pg = (struct mwifiex_power_group *) 738 (buf + sizeof(struct host_cmd_ds_txpwr_cfg) 739 + sizeof(struct mwifiex_types_power_group)); 740 /* Power group for modulation class HR/DSSS */ 741 pg->first_rate_code = 0x00; 742 pg->last_rate_code = 0x03; 743 pg->modulation_class = MOD_CLASS_HR_DSSS; 744 pg->power_step = 0; 745 pg->power_min = (s8) dbm; 746 pg->power_max = (s8) dbm; 747 pg++; 748 /* Power group for modulation class OFDM */ 749 pg->first_rate_code = 0x00; 750 pg->last_rate_code = 0x07; 751 pg->modulation_class = MOD_CLASS_OFDM; 752 pg->power_step = 0; 753 pg->power_min = (s8) dbm; 754 pg->power_max = (s8) dbm; 755 pg++; 756 /* Power group for modulation class HTBW20 */ 757 pg->first_rate_code = 0x00; 758 pg->last_rate_code = 0x20; 759 pg->modulation_class = MOD_CLASS_HT; 760 pg->power_step = 0; 761 pg->power_min = (s8) dbm; 762 pg->power_max = (s8) dbm; 763 pg->ht_bandwidth = HT_BW_20; 764 pg++; 765 /* Power group for modulation class HTBW40 */ 766 pg->first_rate_code = 0x00; 767 pg->last_rate_code = 0x20; 768 pg->modulation_class = MOD_CLASS_HT; 769 pg->power_step = 0; 770 pg->power_min = (s8) dbm; 771 pg->power_max = (s8) dbm; 772 pg->ht_bandwidth = HT_BW_40; 773 } 774 ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG, 775 HostCmd_ACT_GEN_SET, 0, buf, true); 776 777 kfree(buf); 778 return ret; 779 } 780 781 /* 782 * IOCTL request handler to get power save mode. 783 * 784 * This function prepares the correct firmware command and 785 * issues it. 786 */ 787 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode) 788 { 789 int ret; 790 struct mwifiex_adapter *adapter = priv->adapter; 791 u16 sub_cmd; 792 793 if (*ps_mode) 794 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; 795 else 796 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; 797 sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS; 798 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 799 sub_cmd, BITMAP_STA_PS, NULL, true); 800 if ((!ret) && (sub_cmd == DIS_AUTO_PS)) 801 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 802 GET_PS, 0, NULL, false); 803 804 return ret; 805 } 806 807 /* 808 * IOCTL request handler to set/reset WPA IE. 809 * 810 * The supplied WPA IE is treated as a opaque buffer. Only the first field 811 * is checked to determine WPA version. If buffer length is zero, the existing 812 * WPA IE is reset. 813 */ 814 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv, 815 u8 *ie_data_ptr, u16 ie_len) 816 { 817 if (ie_len) { 818 if (ie_len > sizeof(priv->wpa_ie)) { 819 mwifiex_dbg(priv->adapter, ERROR, 820 "failed to copy WPA IE, too big\n"); 821 return -1; 822 } 823 memcpy(priv->wpa_ie, ie_data_ptr, ie_len); 824 priv->wpa_ie_len = ie_len; 825 mwifiex_dbg(priv->adapter, CMD, 826 "cmd: Set Wpa_ie_len=%d IE=%#x\n", 827 priv->wpa_ie_len, priv->wpa_ie[0]); 828 829 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) { 830 priv->sec_info.wpa_enabled = true; 831 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) { 832 priv->sec_info.wpa2_enabled = true; 833 } else { 834 priv->sec_info.wpa_enabled = false; 835 priv->sec_info.wpa2_enabled = false; 836 } 837 } else { 838 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie)); 839 priv->wpa_ie_len = 0; 840 mwifiex_dbg(priv->adapter, INFO, 841 "info: reset wpa_ie_len=%d IE=%#x\n", 842 priv->wpa_ie_len, priv->wpa_ie[0]); 843 priv->sec_info.wpa_enabled = false; 844 priv->sec_info.wpa2_enabled = false; 845 } 846 847 return 0; 848 } 849 850 /* 851 * IOCTL request handler to set/reset WAPI IE. 852 * 853 * The supplied WAPI IE is treated as a opaque buffer. Only the first field 854 * is checked to internally enable WAPI. If buffer length is zero, the existing 855 * WAPI IE is reset. 856 */ 857 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv, 858 u8 *ie_data_ptr, u16 ie_len) 859 { 860 if (ie_len) { 861 if (ie_len > sizeof(priv->wapi_ie)) { 862 mwifiex_dbg(priv->adapter, ERROR, 863 "info: failed to copy WAPI IE, too big\n"); 864 return -1; 865 } 866 memcpy(priv->wapi_ie, ie_data_ptr, ie_len); 867 priv->wapi_ie_len = ie_len; 868 mwifiex_dbg(priv->adapter, CMD, 869 "cmd: Set wapi_ie_len=%d IE=%#x\n", 870 priv->wapi_ie_len, priv->wapi_ie[0]); 871 872 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY) 873 priv->sec_info.wapi_enabled = true; 874 } else { 875 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie)); 876 priv->wapi_ie_len = ie_len; 877 mwifiex_dbg(priv->adapter, INFO, 878 "info: Reset wapi_ie_len=%d IE=%#x\n", 879 priv->wapi_ie_len, priv->wapi_ie[0]); 880 priv->sec_info.wapi_enabled = false; 881 } 882 return 0; 883 } 884 885 /* 886 * IOCTL request handler to set/reset WPS IE. 887 * 888 * The supplied WPS IE is treated as a opaque buffer. Only the first field 889 * is checked to internally enable WPS. If buffer length is zero, the existing 890 * WPS IE is reset. 891 */ 892 static int mwifiex_set_wps_ie(struct mwifiex_private *priv, 893 u8 *ie_data_ptr, u16 ie_len) 894 { 895 if (ie_len) { 896 if (ie_len > MWIFIEX_MAX_VSIE_LEN) { 897 mwifiex_dbg(priv->adapter, ERROR, 898 "info: failed to copy WPS IE, too big\n"); 899 return -1; 900 } 901 902 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL); 903 if (!priv->wps_ie) 904 return -ENOMEM; 905 906 memcpy(priv->wps_ie, ie_data_ptr, ie_len); 907 priv->wps_ie_len = ie_len; 908 mwifiex_dbg(priv->adapter, CMD, 909 "cmd: Set wps_ie_len=%d IE=%#x\n", 910 priv->wps_ie_len, priv->wps_ie[0]); 911 } else { 912 kfree(priv->wps_ie); 913 priv->wps_ie_len = ie_len; 914 mwifiex_dbg(priv->adapter, INFO, 915 "info: Reset wps_ie_len=%d\n", priv->wps_ie_len); 916 } 917 return 0; 918 } 919 920 /* 921 * IOCTL request handler to set WAPI key. 922 * 923 * This function prepares the correct firmware command and 924 * issues it. 925 */ 926 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv, 927 struct mwifiex_ds_encrypt_key *encrypt_key) 928 { 929 930 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 931 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, 932 encrypt_key, true); 933 } 934 935 /* 936 * IOCTL request handler to set WEP network key. 937 * 938 * This function prepares the correct firmware command and 939 * issues it, after validation checks. 940 */ 941 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv, 942 struct mwifiex_ds_encrypt_key *encrypt_key) 943 { 944 struct mwifiex_adapter *adapter = priv->adapter; 945 int ret; 946 struct mwifiex_wep_key *wep_key; 947 int index; 948 949 if (priv->wep_key_curr_index >= NUM_WEP_KEYS) 950 priv->wep_key_curr_index = 0; 951 wep_key = &priv->wep_key[priv->wep_key_curr_index]; 952 index = encrypt_key->key_index; 953 if (encrypt_key->key_disable) { 954 priv->sec_info.wep_enabled = 0; 955 } else if (!encrypt_key->key_len) { 956 /* Copy the required key as the current key */ 957 wep_key = &priv->wep_key[index]; 958 if (!wep_key->key_length) { 959 mwifiex_dbg(adapter, ERROR, 960 "key not set, so cannot enable it\n"); 961 return -1; 962 } 963 964 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) { 965 memcpy(encrypt_key->key_material, 966 wep_key->key_material, wep_key->key_length); 967 encrypt_key->key_len = wep_key->key_length; 968 } 969 970 priv->wep_key_curr_index = (u16) index; 971 priv->sec_info.wep_enabled = 1; 972 } else { 973 wep_key = &priv->wep_key[index]; 974 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 975 /* Copy the key in the driver */ 976 memcpy(wep_key->key_material, 977 encrypt_key->key_material, 978 encrypt_key->key_len); 979 wep_key->key_index = index; 980 wep_key->key_length = encrypt_key->key_len; 981 priv->sec_info.wep_enabled = 1; 982 } 983 if (wep_key->key_length) { 984 void *enc_key; 985 986 if (encrypt_key->key_disable) { 987 memset(&priv->wep_key[index], 0, 988 sizeof(struct mwifiex_wep_key)); 989 goto done; 990 } 991 992 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) 993 enc_key = encrypt_key; 994 else 995 enc_key = NULL; 996 997 /* Send request to firmware */ 998 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 999 HostCmd_ACT_GEN_SET, 0, enc_key, false); 1000 if (ret) 1001 return ret; 1002 } 1003 1004 done: 1005 if (priv->sec_info.wep_enabled) 1006 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; 1007 else 1008 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; 1009 1010 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 1011 HostCmd_ACT_GEN_SET, 0, 1012 &priv->curr_pkt_filter, true); 1013 1014 return ret; 1015 } 1016 1017 /* 1018 * IOCTL request handler to set WPA key. 1019 * 1020 * This function prepares the correct firmware command and 1021 * issues it, after validation checks. 1022 * 1023 * Current driver only supports key length of up to 32 bytes. 1024 * 1025 * This function can also be used to disable a currently set key. 1026 */ 1027 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv, 1028 struct mwifiex_ds_encrypt_key *encrypt_key) 1029 { 1030 int ret; 1031 u8 remove_key = false; 1032 struct host_cmd_ds_802_11_key_material *ibss_key; 1033 1034 /* Current driver only supports key length of up to 32 bytes */ 1035 if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) { 1036 mwifiex_dbg(priv->adapter, ERROR, 1037 "key length too long\n"); 1038 return -1; 1039 } 1040 1041 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { 1042 /* 1043 * IBSS/WPA-None uses only one key (Group) for both receiving 1044 * and sending unicast and multicast packets. 1045 */ 1046 /* Send the key as PTK to firmware */ 1047 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1048 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1049 HostCmd_ACT_GEN_SET, 1050 KEY_INFO_ENABLED, encrypt_key, false); 1051 if (ret) 1052 return ret; 1053 1054 ibss_key = &priv->aes_key; 1055 memset(ibss_key, 0, 1056 sizeof(struct host_cmd_ds_802_11_key_material)); 1057 /* Copy the key in the driver */ 1058 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material, 1059 encrypt_key->key_len); 1060 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len, 1061 sizeof(ibss_key->key_param_set.key_len)); 1062 ibss_key->key_param_set.key_type_id 1063 = cpu_to_le16(KEY_TYPE_ID_TKIP); 1064 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED); 1065 1066 /* Send the key as GTK to firmware */ 1067 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST; 1068 } 1069 1070 if (!encrypt_key->key_index) 1071 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1072 1073 if (remove_key) 1074 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1075 HostCmd_ACT_GEN_SET, 1076 !KEY_INFO_ENABLED, encrypt_key, true); 1077 else 1078 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1079 HostCmd_ACT_GEN_SET, 1080 KEY_INFO_ENABLED, encrypt_key, true); 1081 1082 return ret; 1083 } 1084 1085 /* 1086 * IOCTL request handler to set/get network keys. 1087 * 1088 * This is a generic key handling function which supports WEP, WPA 1089 * and WAPI. 1090 */ 1091 static int 1092 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv, 1093 struct mwifiex_ds_encrypt_key *encrypt_key) 1094 { 1095 int status; 1096 1097 if (encrypt_key->is_wapi_key) 1098 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key); 1099 else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104) 1100 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key); 1101 else 1102 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key); 1103 return status; 1104 } 1105 1106 /* 1107 * This function returns the driver version. 1108 */ 1109 int 1110 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version, 1111 int max_len) 1112 { 1113 union { 1114 __le32 l; 1115 u8 c[4]; 1116 } ver; 1117 char fw_ver[32]; 1118 1119 ver.l = cpu_to_le32(adapter->fw_release_number); 1120 sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]); 1121 1122 snprintf(version, max_len, driver_version, fw_ver); 1123 1124 mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version); 1125 1126 return 0; 1127 } 1128 1129 /* 1130 * Sends IOCTL request to set encoding parameters. 1131 * 1132 * This function allocates the IOCTL request buffer, fills it 1133 * with requisite parameters and calls the IOCTL handler. 1134 */ 1135 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp, 1136 const u8 *key, int key_len, u8 key_index, 1137 const u8 *mac_addr, int disable) 1138 { 1139 struct mwifiex_ds_encrypt_key encrypt_key; 1140 1141 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); 1142 encrypt_key.key_len = key_len; 1143 encrypt_key.key_index = key_index; 1144 1145 if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC) 1146 encrypt_key.is_igtk_key = true; 1147 1148 if (!disable) { 1149 if (key_len) 1150 memcpy(encrypt_key.key_material, key, key_len); 1151 else 1152 encrypt_key.is_current_wep_key = true; 1153 1154 if (mac_addr) 1155 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); 1156 if (kp && kp->seq && kp->seq_len) { 1157 memcpy(encrypt_key.pn, kp->seq, kp->seq_len); 1158 encrypt_key.pn_len = kp->seq_len; 1159 encrypt_key.is_rx_seq_valid = true; 1160 } 1161 } else { 1162 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 1163 return 0; 1164 encrypt_key.key_disable = true; 1165 if (mac_addr) 1166 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); 1167 } 1168 1169 return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key); 1170 } 1171 1172 /* 1173 * Sends IOCTL request to get extended version. 1174 * 1175 * This function allocates the IOCTL request buffer, fills it 1176 * with requisite parameters and calls the IOCTL handler. 1177 */ 1178 int 1179 mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel) 1180 { 1181 struct mwifiex_ver_ext ver_ext; 1182 1183 memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext)); 1184 ver_ext.version_str_sel = version_str_sel; 1185 if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT, 1186 HostCmd_ACT_GEN_GET, 0, &ver_ext, true)) 1187 return -1; 1188 1189 return 0; 1190 } 1191 1192 int 1193 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action, 1194 struct ieee80211_channel *chan, 1195 unsigned int duration) 1196 { 1197 struct host_cmd_ds_remain_on_chan roc_cfg; 1198 u8 sc; 1199 1200 memset(&roc_cfg, 0, sizeof(roc_cfg)); 1201 roc_cfg.action = cpu_to_le16(action); 1202 if (action == HostCmd_ACT_GEN_SET) { 1203 roc_cfg.band_cfg = chan->band; 1204 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT); 1205 roc_cfg.band_cfg |= (sc << 2); 1206 1207 roc_cfg.channel = 1208 ieee80211_frequency_to_channel(chan->center_freq); 1209 roc_cfg.duration = cpu_to_le32(duration); 1210 } 1211 if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN, 1212 action, 0, &roc_cfg, true)) { 1213 mwifiex_dbg(priv->adapter, ERROR, 1214 "failed to remain on channel\n"); 1215 return -1; 1216 } 1217 1218 return roc_cfg.status; 1219 } 1220 1221 /* 1222 * Sends IOCTL request to get statistics information. 1223 * 1224 * This function allocates the IOCTL request buffer, fills it 1225 * with requisite parameters and calls the IOCTL handler. 1226 */ 1227 int 1228 mwifiex_get_stats_info(struct mwifiex_private *priv, 1229 struct mwifiex_ds_get_stats *log) 1230 { 1231 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG, 1232 HostCmd_ACT_GEN_GET, 0, log, true); 1233 } 1234 1235 /* 1236 * IOCTL request handler to read/write register. 1237 * 1238 * This function prepares the correct firmware command and 1239 * issues it. 1240 * 1241 * Access to the following registers are supported - 1242 * - MAC 1243 * - BBP 1244 * - RF 1245 * - PMIC 1246 * - CAU 1247 */ 1248 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv, 1249 struct mwifiex_ds_reg_rw *reg_rw, 1250 u16 action) 1251 { 1252 u16 cmd_no; 1253 1254 switch (reg_rw->type) { 1255 case MWIFIEX_REG_MAC: 1256 cmd_no = HostCmd_CMD_MAC_REG_ACCESS; 1257 break; 1258 case MWIFIEX_REG_BBP: 1259 cmd_no = HostCmd_CMD_BBP_REG_ACCESS; 1260 break; 1261 case MWIFIEX_REG_RF: 1262 cmd_no = HostCmd_CMD_RF_REG_ACCESS; 1263 break; 1264 case MWIFIEX_REG_PMIC: 1265 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS; 1266 break; 1267 case MWIFIEX_REG_CAU: 1268 cmd_no = HostCmd_CMD_CAU_REG_ACCESS; 1269 break; 1270 default: 1271 return -1; 1272 } 1273 1274 return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true); 1275 } 1276 1277 /* 1278 * Sends IOCTL request to write to a register. 1279 * 1280 * This function allocates the IOCTL request buffer, fills it 1281 * with requisite parameters and calls the IOCTL handler. 1282 */ 1283 int 1284 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type, 1285 u32 reg_offset, u32 reg_value) 1286 { 1287 struct mwifiex_ds_reg_rw reg_rw; 1288 1289 reg_rw.type = reg_type; 1290 reg_rw.offset = reg_offset; 1291 reg_rw.value = reg_value; 1292 1293 return mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_SET); 1294 } 1295 1296 /* 1297 * Sends IOCTL request to read from a register. 1298 * 1299 * This function allocates the IOCTL request buffer, fills it 1300 * with requisite parameters and calls the IOCTL handler. 1301 */ 1302 int 1303 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type, 1304 u32 reg_offset, u32 *value) 1305 { 1306 int ret; 1307 struct mwifiex_ds_reg_rw reg_rw; 1308 1309 reg_rw.type = reg_type; 1310 reg_rw.offset = reg_offset; 1311 ret = mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_GET); 1312 1313 if (ret) 1314 goto done; 1315 1316 *value = reg_rw.value; 1317 1318 done: 1319 return ret; 1320 } 1321 1322 /* 1323 * Sends IOCTL request to read from EEPROM. 1324 * 1325 * This function allocates the IOCTL request buffer, fills it 1326 * with requisite parameters and calls the IOCTL handler. 1327 */ 1328 int 1329 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes, 1330 u8 *value) 1331 { 1332 int ret; 1333 struct mwifiex_ds_read_eeprom rd_eeprom; 1334 1335 rd_eeprom.offset = offset; 1336 rd_eeprom.byte_count = bytes; 1337 1338 /* Send request to firmware */ 1339 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS, 1340 HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true); 1341 1342 if (!ret) 1343 memcpy(value, rd_eeprom.value, min((u16)MAX_EEPROM_DATA, 1344 rd_eeprom.byte_count)); 1345 return ret; 1346 } 1347 1348 /* 1349 * This function sets a generic IE. In addition to generic IE, it can 1350 * also handle WPA, WPA2 and WAPI IEs. 1351 */ 1352 static int 1353 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, 1354 u16 ie_len) 1355 { 1356 int ret = 0; 1357 struct ieee_types_vendor_header *pvendor_ie; 1358 const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 }; 1359 const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 }; 1360 u16 unparsed_len = ie_len; 1361 int find_wpa_ie = 0; 1362 1363 /* If the passed length is zero, reset the buffer */ 1364 if (!ie_len) { 1365 priv->gen_ie_buf_len = 0; 1366 priv->wps.session_enable = false; 1367 1368 return 0; 1369 } else if (!ie_data_ptr) { 1370 return -1; 1371 } 1372 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; 1373 1374 while (pvendor_ie) { 1375 if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) { 1376 /* Test to see if it is a WPA IE, if not, then it is a 1377 * gen IE 1378 */ 1379 if (!memcmp(pvendor_ie->oui, wpa_oui, 1380 sizeof(wpa_oui))) { 1381 find_wpa_ie = 1; 1382 break; 1383 } 1384 1385 /* Test to see if it is a WPS IE, if so, enable 1386 * wps session flag 1387 */ 1388 if (!memcmp(pvendor_ie->oui, wps_oui, 1389 sizeof(wps_oui))) { 1390 priv->wps.session_enable = true; 1391 mwifiex_dbg(priv->adapter, MSG, 1392 "info: WPS Session Enabled.\n"); 1393 ret = mwifiex_set_wps_ie(priv, 1394 (u8 *)pvendor_ie, 1395 unparsed_len); 1396 } 1397 } 1398 1399 if (pvendor_ie->element_id == WLAN_EID_RSN) { 1400 find_wpa_ie = 1; 1401 break; 1402 } 1403 1404 if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) { 1405 /* IE is a WAPI IE so call set_wapi function */ 1406 ret = mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie, 1407 unparsed_len); 1408 return ret; 1409 } 1410 1411 unparsed_len -= (pvendor_ie->len + 1412 sizeof(struct ieee_types_header)); 1413 1414 if (unparsed_len <= sizeof(struct ieee_types_header)) 1415 pvendor_ie = NULL; 1416 else 1417 pvendor_ie = (struct ieee_types_vendor_header *) 1418 (((u8 *)pvendor_ie) + pvendor_ie->len + 1419 sizeof(struct ieee_types_header)); 1420 } 1421 1422 if (find_wpa_ie) { 1423 /* IE is a WPA/WPA2 IE so call set_wpa function */ 1424 ret = mwifiex_set_wpa_ie_helper(priv, (u8 *)pvendor_ie, 1425 unparsed_len); 1426 priv->wps.session_enable = false; 1427 return ret; 1428 } 1429 1430 /* 1431 * Verify that the passed length is not larger than the 1432 * available space remaining in the buffer 1433 */ 1434 if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) { 1435 1436 /* Append the passed data to the end of the 1437 genIeBuffer */ 1438 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr, 1439 ie_len); 1440 /* Increment the stored buffer length by the 1441 size passed */ 1442 priv->gen_ie_buf_len += ie_len; 1443 } else { 1444 /* Passed data does not fit in the remaining 1445 buffer space */ 1446 ret = -1; 1447 } 1448 1449 /* Return 0, or -1 for error case */ 1450 return ret; 1451 } 1452 1453 /* 1454 * IOCTL request handler to set/get generic IE. 1455 * 1456 * In addition to various generic IEs, this function can also be 1457 * used to set the ARP filter. 1458 */ 1459 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv, 1460 struct mwifiex_ds_misc_gen_ie *gen_ie, 1461 u16 action) 1462 { 1463 struct mwifiex_adapter *adapter = priv->adapter; 1464 1465 switch (gen_ie->type) { 1466 case MWIFIEX_IE_TYPE_GEN_IE: 1467 if (action == HostCmd_ACT_GEN_GET) { 1468 gen_ie->len = priv->wpa_ie_len; 1469 memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len); 1470 } else { 1471 mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data, 1472 (u16) gen_ie->len); 1473 } 1474 break; 1475 case MWIFIEX_IE_TYPE_ARP_FILTER: 1476 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter)); 1477 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) { 1478 adapter->arp_filter_size = 0; 1479 mwifiex_dbg(adapter, ERROR, 1480 "invalid ARP filter size\n"); 1481 return -1; 1482 } else { 1483 memcpy(adapter->arp_filter, gen_ie->ie_data, 1484 gen_ie->len); 1485 adapter->arp_filter_size = gen_ie->len; 1486 } 1487 break; 1488 default: 1489 mwifiex_dbg(adapter, ERROR, "invalid IE type\n"); 1490 return -1; 1491 } 1492 return 0; 1493 } 1494 1495 /* 1496 * Sends IOCTL request to set a generic IE. 1497 * 1498 * This function allocates the IOCTL request buffer, fills it 1499 * with requisite parameters and calls the IOCTL handler. 1500 */ 1501 int 1502 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len) 1503 { 1504 struct mwifiex_ds_misc_gen_ie gen_ie; 1505 1506 if (ie_len > IEEE_MAX_IE_SIZE) 1507 return -EFAULT; 1508 1509 gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE; 1510 gen_ie.len = ie_len; 1511 memcpy(gen_ie.ie_data, ie, ie_len); 1512 if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET)) 1513 return -EFAULT; 1514 1515 return 0; 1516 } 1517 1518 /* This function get Host Sleep wake up reason. 1519 * 1520 */ 1521 int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action, 1522 int cmd_type, 1523 struct mwifiex_ds_wakeup_reason *wakeup_reason) 1524 { 1525 int status = 0; 1526 1527 status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON, 1528 HostCmd_ACT_GEN_GET, 0, wakeup_reason, 1529 cmd_type == MWIFIEX_SYNC_CMD); 1530 1531 return status; 1532 } 1533