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 (!test_bit(MWIFIEX_IS_HS_CONFIGURED, 423 &adapter->work_flags)) 424 /* Already cancelled */ 425 break; 426 /* Save previous condition */ 427 prev_cond = le32_to_cpu(adapter->hs_cfg 428 .conditions); 429 adapter->hs_cfg.conditions = 430 cpu_to_le32(hs_cfg->conditions); 431 } else if (hs_cfg->conditions) { 432 adapter->hs_cfg.conditions = 433 cpu_to_le32(hs_cfg->conditions); 434 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 435 if (hs_cfg->gap) 436 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 437 } else if (adapter->hs_cfg.conditions == 438 cpu_to_le32(HS_CFG_CANCEL)) { 439 /* Return failure if no parameters for HS 440 enable */ 441 status = -1; 442 break; 443 } 444 445 status = mwifiex_send_cmd(priv, 446 HostCmd_CMD_802_11_HS_CFG_ENH, 447 HostCmd_ACT_GEN_SET, 0, 448 &adapter->hs_cfg, 449 cmd_type == MWIFIEX_SYNC_CMD); 450 451 if (hs_cfg->conditions == HS_CFG_CANCEL) 452 /* Restore previous condition */ 453 adapter->hs_cfg.conditions = 454 cpu_to_le32(prev_cond); 455 } else { 456 adapter->hs_cfg.conditions = 457 cpu_to_le32(hs_cfg->conditions); 458 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 459 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 460 } 461 break; 462 case HostCmd_ACT_GEN_GET: 463 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions); 464 hs_cfg->gpio = adapter->hs_cfg.gpio; 465 hs_cfg->gap = adapter->hs_cfg.gap; 466 break; 467 default: 468 status = -1; 469 break; 470 } 471 472 return status; 473 } 474 475 /* 476 * Sends IOCTL request to cancel the existing Host Sleep configuration. 477 * 478 * This function allocates the IOCTL request buffer, fills it 479 * with requisite parameters and calls the IOCTL handler. 480 */ 481 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type) 482 { 483 struct mwifiex_ds_hs_cfg hscfg; 484 485 hscfg.conditions = HS_CFG_CANCEL; 486 hscfg.is_invoke_hostcmd = true; 487 488 return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, 489 cmd_type, &hscfg); 490 } 491 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs); 492 493 /* 494 * Sends IOCTL request to cancel the existing Host Sleep configuration. 495 * 496 * This function allocates the IOCTL request buffer, fills it 497 * with requisite parameters and calls the IOCTL handler. 498 */ 499 int mwifiex_enable_hs(struct mwifiex_adapter *adapter) 500 { 501 struct mwifiex_ds_hs_cfg hscfg; 502 struct mwifiex_private *priv; 503 int i; 504 505 if (disconnect_on_suspend) { 506 for (i = 0; i < adapter->priv_num; i++) { 507 priv = adapter->priv[i]; 508 if (priv) 509 mwifiex_deauthenticate(priv, NULL); 510 } 511 } 512 513 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 514 515 if (priv && priv->sched_scanning) { 516 #ifdef CONFIG_PM 517 if (priv->wdev.wiphy->wowlan_config && 518 !priv->wdev.wiphy->wowlan_config->nd_config) { 519 #endif 520 mwifiex_dbg(adapter, CMD, "aborting bgscan!\n"); 521 mwifiex_stop_bg_scan(priv); 522 cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0); 523 #ifdef CONFIG_PM 524 } 525 #endif 526 } 527 528 if (adapter->hs_activated) { 529 mwifiex_dbg(adapter, CMD, 530 "cmd: HS Already activated\n"); 531 return true; 532 } 533 534 adapter->hs_activate_wait_q_woken = false; 535 536 memset(&hscfg, 0, sizeof(hscfg)); 537 hscfg.is_invoke_hostcmd = true; 538 539 set_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags); 540 mwifiex_cancel_all_pending_cmd(adapter); 541 542 if (mwifiex_set_hs_params(mwifiex_get_priv(adapter, 543 MWIFIEX_BSS_ROLE_STA), 544 HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD, 545 &hscfg)) { 546 mwifiex_dbg(adapter, ERROR, 547 "IOCTL request HS enable failed\n"); 548 return false; 549 } 550 551 if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q, 552 adapter->hs_activate_wait_q_woken, 553 (10 * HZ)) <= 0) { 554 mwifiex_dbg(adapter, ERROR, 555 "hs_activate_wait_q terminated\n"); 556 return false; 557 } 558 559 return true; 560 } 561 EXPORT_SYMBOL_GPL(mwifiex_enable_hs); 562 563 /* 564 * IOCTL request handler to get BSS information. 565 * 566 * This function collates the information from different driver structures 567 * to send to the user. 568 */ 569 int mwifiex_get_bss_info(struct mwifiex_private *priv, 570 struct mwifiex_bss_info *info) 571 { 572 struct mwifiex_adapter *adapter = priv->adapter; 573 struct mwifiex_bssdescriptor *bss_desc; 574 575 if (!info) 576 return -1; 577 578 bss_desc = &priv->curr_bss_params.bss_descriptor; 579 580 info->bss_mode = priv->bss_mode; 581 582 memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid)); 583 584 memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN); 585 586 info->bss_chan = bss_desc->channel; 587 588 memcpy(info->country_code, adapter->country_code, 589 IEEE80211_COUNTRY_STRING_LEN); 590 591 info->media_connected = priv->media_connected; 592 593 info->max_power_level = priv->max_tx_power_level; 594 info->min_power_level = priv->min_tx_power_level; 595 596 info->adhoc_state = priv->adhoc_state; 597 598 info->bcn_nf_last = priv->bcn_nf_last; 599 600 if (priv->sec_info.wep_enabled) 601 info->wep_status = true; 602 else 603 info->wep_status = false; 604 605 info->is_hs_configured = test_bit(MWIFIEX_IS_HS_CONFIGURED, 606 &adapter->work_flags); 607 info->is_deep_sleep = adapter->is_deep_sleep; 608 609 return 0; 610 } 611 612 /* 613 * The function disables auto deep sleep mode. 614 */ 615 int mwifiex_disable_auto_ds(struct mwifiex_private *priv) 616 { 617 struct mwifiex_ds_auto_ds auto_ds = { 618 .auto_ds = DEEP_SLEEP_OFF, 619 }; 620 621 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 622 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true); 623 } 624 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds); 625 626 /* 627 * Sends IOCTL request to get the data rate. 628 * 629 * This function allocates the IOCTL request buffer, fills it 630 * with requisite parameters and calls the IOCTL handler. 631 */ 632 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate) 633 { 634 int ret; 635 636 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY, 637 HostCmd_ACT_GEN_GET, 0, NULL, true); 638 639 if (!ret) { 640 if (priv->is_data_rate_auto) 641 *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate, 642 priv->tx_htinfo); 643 else 644 *rate = priv->data_rate; 645 } 646 647 return ret; 648 } 649 650 /* 651 * IOCTL request handler to set tx power configuration. 652 * 653 * This function prepares the correct firmware command and 654 * issues it. 655 * 656 * For non-auto power mode, all the following power groups are set - 657 * - Modulation class HR/DSSS 658 * - Modulation class OFDM 659 * - Modulation class HTBW20 660 * - Modulation class HTBW40 661 */ 662 int mwifiex_set_tx_power(struct mwifiex_private *priv, 663 struct mwifiex_power_cfg *power_cfg) 664 { 665 int ret; 666 struct host_cmd_ds_txpwr_cfg *txp_cfg; 667 struct mwifiex_types_power_group *pg_tlv; 668 struct mwifiex_power_group *pg; 669 u8 *buf; 670 u16 dbm = 0; 671 672 if (!power_cfg->is_power_auto) { 673 dbm = (u16) power_cfg->power_level; 674 if ((dbm < priv->min_tx_power_level) || 675 (dbm > priv->max_tx_power_level)) { 676 mwifiex_dbg(priv->adapter, ERROR, 677 "txpower value %d dBm\t" 678 "is out of range (%d dBm-%d dBm)\n", 679 dbm, priv->min_tx_power_level, 680 priv->max_tx_power_level); 681 return -1; 682 } 683 } 684 buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL); 685 if (!buf) 686 return -ENOMEM; 687 688 txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf; 689 txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET); 690 if (!power_cfg->is_power_auto) { 691 txp_cfg->mode = cpu_to_le32(1); 692 pg_tlv = (struct mwifiex_types_power_group *) 693 (buf + sizeof(struct host_cmd_ds_txpwr_cfg)); 694 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP); 695 pg_tlv->length = 696 cpu_to_le16(4 * sizeof(struct mwifiex_power_group)); 697 pg = (struct mwifiex_power_group *) 698 (buf + sizeof(struct host_cmd_ds_txpwr_cfg) 699 + sizeof(struct mwifiex_types_power_group)); 700 /* Power group for modulation class HR/DSSS */ 701 pg->first_rate_code = 0x00; 702 pg->last_rate_code = 0x03; 703 pg->modulation_class = MOD_CLASS_HR_DSSS; 704 pg->power_step = 0; 705 pg->power_min = (s8) dbm; 706 pg->power_max = (s8) dbm; 707 pg++; 708 /* Power group for modulation class OFDM */ 709 pg->first_rate_code = 0x00; 710 pg->last_rate_code = 0x07; 711 pg->modulation_class = MOD_CLASS_OFDM; 712 pg->power_step = 0; 713 pg->power_min = (s8) dbm; 714 pg->power_max = (s8) dbm; 715 pg++; 716 /* Power group for modulation class HTBW20 */ 717 pg->first_rate_code = 0x00; 718 pg->last_rate_code = 0x20; 719 pg->modulation_class = MOD_CLASS_HT; 720 pg->power_step = 0; 721 pg->power_min = (s8) dbm; 722 pg->power_max = (s8) dbm; 723 pg->ht_bandwidth = HT_BW_20; 724 pg++; 725 /* Power group for modulation class HTBW40 */ 726 pg->first_rate_code = 0x00; 727 pg->last_rate_code = 0x20; 728 pg->modulation_class = MOD_CLASS_HT; 729 pg->power_step = 0; 730 pg->power_min = (s8) dbm; 731 pg->power_max = (s8) dbm; 732 pg->ht_bandwidth = HT_BW_40; 733 } 734 ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG, 735 HostCmd_ACT_GEN_SET, 0, buf, true); 736 737 kfree(buf); 738 return ret; 739 } 740 741 /* 742 * IOCTL request handler to get power save mode. 743 * 744 * This function prepares the correct firmware command and 745 * issues it. 746 */ 747 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode) 748 { 749 int ret; 750 struct mwifiex_adapter *adapter = priv->adapter; 751 u16 sub_cmd; 752 753 if (*ps_mode) 754 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; 755 else 756 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; 757 sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS; 758 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 759 sub_cmd, BITMAP_STA_PS, NULL, true); 760 if ((!ret) && (sub_cmd == DIS_AUTO_PS)) 761 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 762 GET_PS, 0, NULL, false); 763 764 return ret; 765 } 766 767 /* 768 * IOCTL request handler to set/reset WPA IE. 769 * 770 * The supplied WPA IE is treated as a opaque buffer. Only the first field 771 * is checked to determine WPA version. If buffer length is zero, the existing 772 * WPA IE is reset. 773 */ 774 static int mwifiex_set_wpa_ie(struct mwifiex_private *priv, 775 u8 *ie_data_ptr, u16 ie_len) 776 { 777 if (ie_len) { 778 if (ie_len > sizeof(priv->wpa_ie)) { 779 mwifiex_dbg(priv->adapter, ERROR, 780 "failed to copy WPA IE, too big\n"); 781 return -1; 782 } 783 memcpy(priv->wpa_ie, ie_data_ptr, ie_len); 784 priv->wpa_ie_len = ie_len; 785 mwifiex_dbg(priv->adapter, CMD, 786 "cmd: Set Wpa_ie_len=%d IE=%#x\n", 787 priv->wpa_ie_len, priv->wpa_ie[0]); 788 789 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) { 790 priv->sec_info.wpa_enabled = true; 791 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) { 792 priv->sec_info.wpa2_enabled = true; 793 } else { 794 priv->sec_info.wpa_enabled = false; 795 priv->sec_info.wpa2_enabled = false; 796 } 797 } else { 798 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie)); 799 priv->wpa_ie_len = 0; 800 mwifiex_dbg(priv->adapter, INFO, 801 "info: reset wpa_ie_len=%d IE=%#x\n", 802 priv->wpa_ie_len, priv->wpa_ie[0]); 803 priv->sec_info.wpa_enabled = false; 804 priv->sec_info.wpa2_enabled = false; 805 } 806 807 return 0; 808 } 809 810 /* 811 * IOCTL request handler to set/reset WAPI IE. 812 * 813 * The supplied WAPI IE is treated as a opaque buffer. Only the first field 814 * is checked to internally enable WAPI. If buffer length is zero, the existing 815 * WAPI IE is reset. 816 */ 817 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv, 818 u8 *ie_data_ptr, u16 ie_len) 819 { 820 if (ie_len) { 821 if (ie_len > sizeof(priv->wapi_ie)) { 822 mwifiex_dbg(priv->adapter, ERROR, 823 "info: failed to copy WAPI IE, too big\n"); 824 return -1; 825 } 826 memcpy(priv->wapi_ie, ie_data_ptr, ie_len); 827 priv->wapi_ie_len = ie_len; 828 mwifiex_dbg(priv->adapter, CMD, 829 "cmd: Set wapi_ie_len=%d IE=%#x\n", 830 priv->wapi_ie_len, priv->wapi_ie[0]); 831 832 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY) 833 priv->sec_info.wapi_enabled = true; 834 } else { 835 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie)); 836 priv->wapi_ie_len = ie_len; 837 mwifiex_dbg(priv->adapter, INFO, 838 "info: Reset wapi_ie_len=%d IE=%#x\n", 839 priv->wapi_ie_len, priv->wapi_ie[0]); 840 priv->sec_info.wapi_enabled = false; 841 } 842 return 0; 843 } 844 845 /* 846 * IOCTL request handler to set/reset WPS IE. 847 * 848 * The supplied WPS IE is treated as a opaque buffer. Only the first field 849 * is checked to internally enable WPS. If buffer length is zero, the existing 850 * WPS IE is reset. 851 */ 852 static int mwifiex_set_wps_ie(struct mwifiex_private *priv, 853 u8 *ie_data_ptr, u16 ie_len) 854 { 855 if (ie_len) { 856 if (ie_len > MWIFIEX_MAX_VSIE_LEN) { 857 mwifiex_dbg(priv->adapter, ERROR, 858 "info: failed to copy WPS IE, too big\n"); 859 return -1; 860 } 861 862 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL); 863 if (!priv->wps_ie) 864 return -ENOMEM; 865 866 memcpy(priv->wps_ie, ie_data_ptr, ie_len); 867 priv->wps_ie_len = ie_len; 868 mwifiex_dbg(priv->adapter, CMD, 869 "cmd: Set wps_ie_len=%d IE=%#x\n", 870 priv->wps_ie_len, priv->wps_ie[0]); 871 } else { 872 kfree(priv->wps_ie); 873 priv->wps_ie_len = ie_len; 874 mwifiex_dbg(priv->adapter, INFO, 875 "info: Reset wps_ie_len=%d\n", priv->wps_ie_len); 876 } 877 return 0; 878 } 879 880 /* 881 * IOCTL request handler to set WAPI key. 882 * 883 * This function prepares the correct firmware command and 884 * issues it. 885 */ 886 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv, 887 struct mwifiex_ds_encrypt_key *encrypt_key) 888 { 889 890 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 891 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, 892 encrypt_key, true); 893 } 894 895 /* 896 * IOCTL request handler to set WEP network key. 897 * 898 * This function prepares the correct firmware command and 899 * issues it, after validation checks. 900 */ 901 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv, 902 struct mwifiex_ds_encrypt_key *encrypt_key) 903 { 904 struct mwifiex_adapter *adapter = priv->adapter; 905 int ret; 906 struct mwifiex_wep_key *wep_key; 907 int index; 908 909 if (priv->wep_key_curr_index >= NUM_WEP_KEYS) 910 priv->wep_key_curr_index = 0; 911 wep_key = &priv->wep_key[priv->wep_key_curr_index]; 912 index = encrypt_key->key_index; 913 if (encrypt_key->key_disable) { 914 priv->sec_info.wep_enabled = 0; 915 } else if (!encrypt_key->key_len) { 916 /* Copy the required key as the current key */ 917 wep_key = &priv->wep_key[index]; 918 if (!wep_key->key_length) { 919 mwifiex_dbg(adapter, ERROR, 920 "key not set, so cannot enable it\n"); 921 return -1; 922 } 923 924 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) { 925 memcpy(encrypt_key->key_material, 926 wep_key->key_material, wep_key->key_length); 927 encrypt_key->key_len = wep_key->key_length; 928 } 929 930 priv->wep_key_curr_index = (u16) index; 931 priv->sec_info.wep_enabled = 1; 932 } else { 933 wep_key = &priv->wep_key[index]; 934 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 935 /* Copy the key in the driver */ 936 memcpy(wep_key->key_material, 937 encrypt_key->key_material, 938 encrypt_key->key_len); 939 wep_key->key_index = index; 940 wep_key->key_length = encrypt_key->key_len; 941 priv->sec_info.wep_enabled = 1; 942 } 943 if (wep_key->key_length) { 944 void *enc_key; 945 946 if (encrypt_key->key_disable) { 947 memset(&priv->wep_key[index], 0, 948 sizeof(struct mwifiex_wep_key)); 949 goto done; 950 } 951 952 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) 953 enc_key = encrypt_key; 954 else 955 enc_key = NULL; 956 957 /* Send request to firmware */ 958 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 959 HostCmd_ACT_GEN_SET, 0, enc_key, false); 960 if (ret) 961 return ret; 962 } 963 964 done: 965 if (priv->sec_info.wep_enabled) 966 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; 967 else 968 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; 969 970 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 971 HostCmd_ACT_GEN_SET, 0, 972 &priv->curr_pkt_filter, true); 973 974 return ret; 975 } 976 977 /* 978 * IOCTL request handler to set WPA key. 979 * 980 * This function prepares the correct firmware command and 981 * issues it, after validation checks. 982 * 983 * Current driver only supports key length of up to 32 bytes. 984 * 985 * This function can also be used to disable a currently set key. 986 */ 987 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv, 988 struct mwifiex_ds_encrypt_key *encrypt_key) 989 { 990 int ret; 991 u8 remove_key = false; 992 struct host_cmd_ds_802_11_key_material *ibss_key; 993 994 /* Current driver only supports key length of up to 32 bytes */ 995 if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) { 996 mwifiex_dbg(priv->adapter, ERROR, 997 "key length too long\n"); 998 return -1; 999 } 1000 1001 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { 1002 /* 1003 * IBSS/WPA-None uses only one key (Group) for both receiving 1004 * and sending unicast and multicast packets. 1005 */ 1006 /* Send the key as PTK to firmware */ 1007 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1008 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1009 HostCmd_ACT_GEN_SET, 1010 KEY_INFO_ENABLED, encrypt_key, false); 1011 if (ret) 1012 return ret; 1013 1014 ibss_key = &priv->aes_key; 1015 memset(ibss_key, 0, 1016 sizeof(struct host_cmd_ds_802_11_key_material)); 1017 /* Copy the key in the driver */ 1018 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material, 1019 encrypt_key->key_len); 1020 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len, 1021 sizeof(ibss_key->key_param_set.key_len)); 1022 ibss_key->key_param_set.key_type_id 1023 = cpu_to_le16(KEY_TYPE_ID_TKIP); 1024 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED); 1025 1026 /* Send the key as GTK to firmware */ 1027 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST; 1028 } 1029 1030 if (!encrypt_key->key_index) 1031 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1032 1033 if (remove_key) 1034 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1035 HostCmd_ACT_GEN_SET, 1036 !KEY_INFO_ENABLED, encrypt_key, true); 1037 else 1038 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1039 HostCmd_ACT_GEN_SET, 1040 KEY_INFO_ENABLED, encrypt_key, true); 1041 1042 return ret; 1043 } 1044 1045 /* 1046 * IOCTL request handler to set/get network keys. 1047 * 1048 * This is a generic key handling function which supports WEP, WPA 1049 * and WAPI. 1050 */ 1051 static int 1052 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv, 1053 struct mwifiex_ds_encrypt_key *encrypt_key) 1054 { 1055 int status; 1056 1057 if (encrypt_key->is_wapi_key) 1058 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key); 1059 else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104) 1060 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key); 1061 else 1062 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key); 1063 return status; 1064 } 1065 1066 /* 1067 * This function returns the driver version. 1068 */ 1069 int 1070 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version, 1071 int max_len) 1072 { 1073 union { 1074 __le32 l; 1075 u8 c[4]; 1076 } ver; 1077 char fw_ver[32]; 1078 1079 ver.l = cpu_to_le32(adapter->fw_release_number); 1080 sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]); 1081 1082 snprintf(version, max_len, driver_version, fw_ver); 1083 1084 mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version); 1085 1086 return 0; 1087 } 1088 1089 /* 1090 * Sends IOCTL request to set encoding parameters. 1091 * 1092 * This function allocates the IOCTL request buffer, fills it 1093 * with requisite parameters and calls the IOCTL handler. 1094 */ 1095 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp, 1096 const u8 *key, int key_len, u8 key_index, 1097 const u8 *mac_addr, int disable) 1098 { 1099 struct mwifiex_ds_encrypt_key encrypt_key; 1100 1101 memset(&encrypt_key, 0, sizeof(encrypt_key)); 1102 encrypt_key.key_len = key_len; 1103 encrypt_key.key_index = key_index; 1104 1105 if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC) 1106 encrypt_key.is_igtk_key = true; 1107 1108 if (!disable) { 1109 if (key_len) 1110 memcpy(encrypt_key.key_material, key, key_len); 1111 else 1112 encrypt_key.is_current_wep_key = true; 1113 1114 if (mac_addr) 1115 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); 1116 if (kp && kp->seq && kp->seq_len) { 1117 memcpy(encrypt_key.pn, kp->seq, kp->seq_len); 1118 encrypt_key.pn_len = kp->seq_len; 1119 encrypt_key.is_rx_seq_valid = true; 1120 } 1121 } else { 1122 encrypt_key.key_disable = true; 1123 if (mac_addr) 1124 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); 1125 } 1126 1127 return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key); 1128 } 1129 1130 /* 1131 * Sends IOCTL request to get extended version. 1132 * 1133 * This function allocates the IOCTL request buffer, fills it 1134 * with requisite parameters and calls the IOCTL handler. 1135 */ 1136 int 1137 mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel) 1138 { 1139 struct mwifiex_ver_ext ver_ext; 1140 1141 memset(&ver_ext, 0, sizeof(ver_ext)); 1142 ver_ext.version_str_sel = version_str_sel; 1143 if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT, 1144 HostCmd_ACT_GEN_GET, 0, &ver_ext, true)) 1145 return -1; 1146 1147 return 0; 1148 } 1149 1150 int 1151 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action, 1152 struct ieee80211_channel *chan, 1153 unsigned int duration) 1154 { 1155 struct host_cmd_ds_remain_on_chan roc_cfg; 1156 u8 sc; 1157 1158 memset(&roc_cfg, 0, sizeof(roc_cfg)); 1159 roc_cfg.action = cpu_to_le16(action); 1160 if (action == HostCmd_ACT_GEN_SET) { 1161 roc_cfg.band_cfg = chan->band; 1162 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT); 1163 roc_cfg.band_cfg |= (sc << 2); 1164 1165 roc_cfg.channel = 1166 ieee80211_frequency_to_channel(chan->center_freq); 1167 roc_cfg.duration = cpu_to_le32(duration); 1168 } 1169 if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN, 1170 action, 0, &roc_cfg, true)) { 1171 mwifiex_dbg(priv->adapter, ERROR, 1172 "failed to remain on channel\n"); 1173 return -1; 1174 } 1175 1176 return roc_cfg.status; 1177 } 1178 1179 /* 1180 * Sends IOCTL request to get statistics information. 1181 * 1182 * This function allocates the IOCTL request buffer, fills it 1183 * with requisite parameters and calls the IOCTL handler. 1184 */ 1185 int 1186 mwifiex_get_stats_info(struct mwifiex_private *priv, 1187 struct mwifiex_ds_get_stats *log) 1188 { 1189 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG, 1190 HostCmd_ACT_GEN_GET, 0, log, true); 1191 } 1192 1193 /* 1194 * IOCTL request handler to read/write register. 1195 * 1196 * This function prepares the correct firmware command and 1197 * issues it. 1198 * 1199 * Access to the following registers are supported - 1200 * - MAC 1201 * - BBP 1202 * - RF 1203 * - PMIC 1204 * - CAU 1205 */ 1206 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv, 1207 struct mwifiex_ds_reg_rw *reg_rw, 1208 u16 action) 1209 { 1210 u16 cmd_no; 1211 1212 switch (reg_rw->type) { 1213 case MWIFIEX_REG_MAC: 1214 cmd_no = HostCmd_CMD_MAC_REG_ACCESS; 1215 break; 1216 case MWIFIEX_REG_BBP: 1217 cmd_no = HostCmd_CMD_BBP_REG_ACCESS; 1218 break; 1219 case MWIFIEX_REG_RF: 1220 cmd_no = HostCmd_CMD_RF_REG_ACCESS; 1221 break; 1222 case MWIFIEX_REG_PMIC: 1223 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS; 1224 break; 1225 case MWIFIEX_REG_CAU: 1226 cmd_no = HostCmd_CMD_CAU_REG_ACCESS; 1227 break; 1228 default: 1229 return -1; 1230 } 1231 1232 return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true); 1233 } 1234 1235 /* 1236 * Sends IOCTL request to write to a register. 1237 * 1238 * This function allocates the IOCTL request buffer, fills it 1239 * with requisite parameters and calls the IOCTL handler. 1240 */ 1241 int 1242 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type, 1243 u32 reg_offset, u32 reg_value) 1244 { 1245 struct mwifiex_ds_reg_rw reg_rw; 1246 1247 reg_rw.type = reg_type; 1248 reg_rw.offset = reg_offset; 1249 reg_rw.value = reg_value; 1250 1251 return mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_SET); 1252 } 1253 1254 /* 1255 * Sends IOCTL request to read from a register. 1256 * 1257 * This function allocates the IOCTL request buffer, fills it 1258 * with requisite parameters and calls the IOCTL handler. 1259 */ 1260 int 1261 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type, 1262 u32 reg_offset, u32 *value) 1263 { 1264 int ret; 1265 struct mwifiex_ds_reg_rw reg_rw; 1266 1267 reg_rw.type = reg_type; 1268 reg_rw.offset = reg_offset; 1269 ret = mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_GET); 1270 1271 if (ret) 1272 goto done; 1273 1274 *value = reg_rw.value; 1275 1276 done: 1277 return ret; 1278 } 1279 1280 /* 1281 * Sends IOCTL request to read from EEPROM. 1282 * 1283 * This function allocates the IOCTL request buffer, fills it 1284 * with requisite parameters and calls the IOCTL handler. 1285 */ 1286 int 1287 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes, 1288 u8 *value) 1289 { 1290 int ret; 1291 struct mwifiex_ds_read_eeprom rd_eeprom; 1292 1293 rd_eeprom.offset = offset; 1294 rd_eeprom.byte_count = bytes; 1295 1296 /* Send request to firmware */ 1297 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS, 1298 HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true); 1299 1300 if (!ret) 1301 memcpy(value, rd_eeprom.value, min((u16)MAX_EEPROM_DATA, 1302 rd_eeprom.byte_count)); 1303 return ret; 1304 } 1305 1306 /* 1307 * This function sets a generic IE. In addition to generic IE, it can 1308 * also handle WPA, WPA2 and WAPI IEs. 1309 */ 1310 static int 1311 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, 1312 u16 ie_len) 1313 { 1314 struct ieee_types_vendor_header *pvendor_ie; 1315 const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 }; 1316 const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 }; 1317 u16 unparsed_len = ie_len, cur_ie_len; 1318 1319 /* If the passed length is zero, reset the buffer */ 1320 if (!ie_len) { 1321 priv->gen_ie_buf_len = 0; 1322 priv->wps.session_enable = false; 1323 return 0; 1324 } else if (!ie_data_ptr || 1325 ie_len <= sizeof(struct ieee_types_header)) { 1326 return -1; 1327 } 1328 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; 1329 1330 while (pvendor_ie) { 1331 cur_ie_len = pvendor_ie->len + sizeof(struct ieee_types_header); 1332 1333 if (pvendor_ie->element_id == WLAN_EID_RSN) { 1334 /* IE is a WPA/WPA2 IE so call set_wpa function */ 1335 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, cur_ie_len); 1336 priv->wps.session_enable = false; 1337 goto next_ie; 1338 } 1339 1340 if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) { 1341 /* IE is a WAPI IE so call set_wapi function */ 1342 mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie, 1343 cur_ie_len); 1344 goto next_ie; 1345 } 1346 1347 if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) { 1348 /* Test to see if it is a WPA IE, if not, then 1349 * it is a gen IE 1350 */ 1351 if (!memcmp(pvendor_ie->oui, wpa_oui, 1352 sizeof(wpa_oui))) { 1353 /* IE is a WPA/WPA2 IE so call set_wpa function 1354 */ 1355 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, 1356 cur_ie_len); 1357 priv->wps.session_enable = false; 1358 goto next_ie; 1359 } 1360 1361 if (!memcmp(pvendor_ie->oui, wps_oui, 1362 sizeof(wps_oui))) { 1363 /* Test to see if it is a WPS IE, 1364 * if so, enable wps session flag 1365 */ 1366 priv->wps.session_enable = true; 1367 mwifiex_dbg(priv->adapter, MSG, 1368 "WPS Session Enabled.\n"); 1369 mwifiex_set_wps_ie(priv, (u8 *)pvendor_ie, 1370 cur_ie_len); 1371 goto next_ie; 1372 } 1373 } 1374 1375 /* Saved in gen_ie, such as P2P IE.etc.*/ 1376 1377 /* Verify that the passed length is not larger than the 1378 * available space remaining in the buffer 1379 */ 1380 if (cur_ie_len < 1381 (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) { 1382 /* Append the passed data to the end 1383 * of the genIeBuffer 1384 */ 1385 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, 1386 (u8 *)pvendor_ie, cur_ie_len); 1387 /* Increment the stored buffer length by the 1388 * size passed 1389 */ 1390 priv->gen_ie_buf_len += cur_ie_len; 1391 } 1392 1393 next_ie: 1394 unparsed_len -= cur_ie_len; 1395 1396 if (unparsed_len <= sizeof(struct ieee_types_header)) 1397 pvendor_ie = NULL; 1398 else 1399 pvendor_ie = (struct ieee_types_vendor_header *) 1400 (((u8 *)pvendor_ie) + cur_ie_len); 1401 } 1402 1403 return 0; 1404 } 1405 1406 /* 1407 * IOCTL request handler to set/get generic IE. 1408 * 1409 * In addition to various generic IEs, this function can also be 1410 * used to set the ARP filter. 1411 */ 1412 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv, 1413 struct mwifiex_ds_misc_gen_ie *gen_ie, 1414 u16 action) 1415 { 1416 struct mwifiex_adapter *adapter = priv->adapter; 1417 1418 switch (gen_ie->type) { 1419 case MWIFIEX_IE_TYPE_GEN_IE: 1420 if (action == HostCmd_ACT_GEN_GET) { 1421 gen_ie->len = priv->wpa_ie_len; 1422 memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len); 1423 } else { 1424 mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data, 1425 (u16) gen_ie->len); 1426 } 1427 break; 1428 case MWIFIEX_IE_TYPE_ARP_FILTER: 1429 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter)); 1430 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) { 1431 adapter->arp_filter_size = 0; 1432 mwifiex_dbg(adapter, ERROR, 1433 "invalid ARP filter size\n"); 1434 return -1; 1435 } else { 1436 memcpy(adapter->arp_filter, gen_ie->ie_data, 1437 gen_ie->len); 1438 adapter->arp_filter_size = gen_ie->len; 1439 } 1440 break; 1441 default: 1442 mwifiex_dbg(adapter, ERROR, "invalid IE type\n"); 1443 return -1; 1444 } 1445 return 0; 1446 } 1447 1448 /* 1449 * Sends IOCTL request to set a generic IE. 1450 * 1451 * This function allocates the IOCTL request buffer, fills it 1452 * with requisite parameters and calls the IOCTL handler. 1453 */ 1454 int 1455 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len) 1456 { 1457 struct mwifiex_ds_misc_gen_ie gen_ie; 1458 1459 if (ie_len > IEEE_MAX_IE_SIZE) 1460 return -EFAULT; 1461 1462 gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE; 1463 gen_ie.len = ie_len; 1464 memcpy(gen_ie.ie_data, ie, ie_len); 1465 if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET)) 1466 return -EFAULT; 1467 1468 return 0; 1469 } 1470 1471 /* This function get Host Sleep wake up reason. 1472 * 1473 */ 1474 int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action, 1475 int cmd_type, 1476 struct mwifiex_ds_wakeup_reason *wakeup_reason) 1477 { 1478 int status = 0; 1479 1480 status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON, 1481 HostCmd_ACT_GEN_GET, 0, wakeup_reason, 1482 cmd_type == MWIFIEX_SYNC_CMD); 1483 1484 return status; 1485 } 1486 1487 int mwifiex_get_chan_info(struct mwifiex_private *priv, 1488 struct mwifiex_channel_band *channel_band) 1489 { 1490 int status = 0; 1491 1492 status = mwifiex_send_cmd(priv, HostCmd_CMD_STA_CONFIGURE, 1493 HostCmd_ACT_GEN_GET, 0, channel_band, 1494 MWIFIEX_SYNC_CMD); 1495 1496 return status; 1497 } 1498