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