1/* 2 * Marvell Wireless LAN device driver: functions for station ioctl 3 * 4 * Copyright (C) 2011, 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/* 30 * Copies the multicast address list from device to driver. 31 * 32 * This function does not validate the destination memory for 33 * size, and the calling function must ensure enough memory is 34 * available. 35 */ 36int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, 37 struct net_device *dev) 38{ 39 int i = 0; 40 struct netdev_hw_addr *ha; 41 42 netdev_for_each_mc_addr(ha, dev) 43 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN); 44 45 return i; 46} 47 48/* 49 * Wait queue completion handler. 50 * 51 * This function waits on a cmd wait queue. It also cancels the pending 52 * request after waking up, in case of errors. 53 */ 54int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter) 55{ 56 bool cancel_flag = false; 57 int status; 58 struct cmd_ctrl_node *cmd_queued; 59 60 if (!adapter->cmd_queued) 61 return 0; 62 63 cmd_queued = adapter->cmd_queued; 64 adapter->cmd_queued = NULL; 65 66 dev_dbg(adapter->dev, "cmd pending\n"); 67 atomic_inc(&adapter->cmd_pending); 68 69 /* Status pending, wake up main process */ 70 queue_work(adapter->workqueue, &adapter->main_work); 71 72 /* Wait for completion */ 73 wait_event_interruptible(adapter->cmd_wait_q.wait, 74 *(cmd_queued->condition)); 75 if (!*(cmd_queued->condition)) 76 cancel_flag = true; 77 78 if (cancel_flag) { 79 mwifiex_cancel_pending_ioctl(adapter); 80 dev_dbg(adapter->dev, "cmd cancel\n"); 81 } 82 83 status = adapter->cmd_wait_q.status; 84 adapter->cmd_wait_q.status = 0; 85 86 return status; 87} 88 89/* 90 * This function prepares the correct firmware command and 91 * issues it to set the multicast list. 92 * 93 * This function can be used to enable promiscuous mode, or enable all 94 * multicast packets, or to enable selective multicast. 95 */ 96int mwifiex_request_set_multicast_list(struct mwifiex_private *priv, 97 struct mwifiex_multicast_list *mcast_list) 98{ 99 int ret = 0; 100 u16 old_pkt_filter; 101 102 old_pkt_filter = priv->curr_pkt_filter; 103 104 if (mcast_list->mode == MWIFIEX_PROMISC_MODE) { 105 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n"); 106 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; 107 priv->curr_pkt_filter &= 108 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; 109 } else { 110 /* Multicast */ 111 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; 112 if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) { 113 dev_dbg(priv->adapter->dev, 114 "info: Enabling All Multicast!\n"); 115 priv->curr_pkt_filter |= 116 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; 117 } else { 118 priv->curr_pkt_filter &= 119 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; 120 if (mcast_list->num_multicast_addr) { 121 dev_dbg(priv->adapter->dev, 122 "info: Set multicast list=%d\n", 123 mcast_list->num_multicast_addr); 124 /* Set multicast addresses to firmware */ 125 if (old_pkt_filter == priv->curr_pkt_filter) { 126 /* Send request to firmware */ 127 ret = mwifiex_send_cmd_async(priv, 128 HostCmd_CMD_MAC_MULTICAST_ADR, 129 HostCmd_ACT_GEN_SET, 0, 130 mcast_list); 131 } else { 132 /* Send request to firmware */ 133 ret = mwifiex_send_cmd_async(priv, 134 HostCmd_CMD_MAC_MULTICAST_ADR, 135 HostCmd_ACT_GEN_SET, 0, 136 mcast_list); 137 } 138 } 139 } 140 } 141 dev_dbg(priv->adapter->dev, 142 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n", 143 old_pkt_filter, priv->curr_pkt_filter); 144 if (old_pkt_filter != priv->curr_pkt_filter) { 145 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL, 146 HostCmd_ACT_GEN_SET, 147 0, &priv->curr_pkt_filter); 148 } 149 150 return ret; 151} 152 153/* 154 * This function fills bss descriptor structure using provided 155 * information. 156 */ 157int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, 158 u8 *bssid, s32 rssi, u8 *ie_buf, 159 size_t ie_len, u16 beacon_period, 160 u16 cap_info_bitmap, u8 band, 161 struct mwifiex_bssdescriptor *bss_desc) 162{ 163 int ret; 164 165 memcpy(bss_desc->mac_address, bssid, ETH_ALEN); 166 bss_desc->rssi = rssi; 167 bss_desc->beacon_buf = ie_buf; 168 bss_desc->beacon_buf_size = ie_len; 169 bss_desc->beacon_period = beacon_period; 170 bss_desc->cap_info_bitmap = cap_info_bitmap; 171 bss_desc->bss_band = band; 172 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) { 173 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n"); 174 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP; 175 } else { 176 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL; 177 } 178 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS) 179 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC; 180 else 181 bss_desc->bss_mode = NL80211_IFTYPE_STATION; 182 183 ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc, 184 ie_buf, ie_len); 185 186 return ret; 187} 188 189/* 190 * In Ad-Hoc mode, the IBSS is created if not found in scan list. 191 * In both Ad-Hoc and infra mode, an deauthentication is performed 192 * first. 193 */ 194int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, 195 struct cfg80211_ssid *req_ssid) 196{ 197 int ret; 198 struct mwifiex_adapter *adapter = priv->adapter; 199 struct mwifiex_bssdescriptor *bss_desc = NULL; 200 u8 *beacon_ie = NULL; 201 202 priv->scan_block = false; 203 204 if (bss) { 205 /* Allocate and fill new bss descriptor */ 206 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor), 207 GFP_KERNEL); 208 if (!bss_desc) { 209 dev_err(priv->adapter->dev, " failed to alloc bss_desc\n"); 210 return -ENOMEM; 211 } 212 213 beacon_ie = kmemdup(bss->information_elements, 214 bss->len_beacon_ies, GFP_KERNEL); 215 if (!beacon_ie) { 216 kfree(bss_desc); 217 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n"); 218 return -ENOMEM; 219 } 220 221 ret = mwifiex_fill_new_bss_desc(priv, bss->bssid, bss->signal, 222 beacon_ie, bss->len_beacon_ies, 223 bss->beacon_interval, 224 bss->capability, 225 *(u8 *)bss->priv, bss_desc); 226 if (ret) 227 goto done; 228 } 229 230 if (priv->bss_mode == NL80211_IFTYPE_STATION) { 231 /* Infra mode */ 232 ret = mwifiex_deauthenticate(priv, NULL); 233 if (ret) 234 goto done; 235 236 ret = mwifiex_check_network_compatibility(priv, bss_desc); 237 if (ret) 238 goto done; 239 240 dev_dbg(adapter->dev, "info: SSID found in scan list ... " 241 "associating...\n"); 242 243 if (!netif_queue_stopped(priv->netdev)) 244 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 245 if (netif_carrier_ok(priv->netdev)) 246 netif_carrier_off(priv->netdev); 247 248 /* Clear any past association response stored for 249 * application retrieval */ 250 priv->assoc_rsp_size = 0; 251 ret = mwifiex_associate(priv, bss_desc); 252 253 /* If auth type is auto and association fails using open mode, 254 * try to connect using shared mode */ 255 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && 256 priv->sec_info.is_authtype_auto && 257 priv->sec_info.wep_enabled) { 258 priv->sec_info.authentication_mode = 259 NL80211_AUTHTYPE_SHARED_KEY; 260 ret = mwifiex_associate(priv, bss_desc); 261 } 262 263 if (bss) 264 cfg80211_put_bss(bss); 265 } else { 266 /* Adhoc mode */ 267 /* If the requested SSID matches current SSID, return */ 268 if (bss_desc && bss_desc->ssid.ssid_len && 269 (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor. 270 ssid, &bss_desc->ssid))) { 271 kfree(bss_desc); 272 kfree(beacon_ie); 273 return 0; 274 } 275 276 /* Exit Adhoc mode first */ 277 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n"); 278 ret = mwifiex_deauthenticate(priv, NULL); 279 if (ret) 280 goto done; 281 282 priv->adhoc_is_link_sensed = false; 283 284 ret = mwifiex_check_network_compatibility(priv, bss_desc); 285 286 if (!netif_queue_stopped(priv->netdev)) 287 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 288 if (netif_carrier_ok(priv->netdev)) 289 netif_carrier_off(priv->netdev); 290 291 if (!ret) { 292 dev_dbg(adapter->dev, "info: network found in scan" 293 " list. Joining...\n"); 294 ret = mwifiex_adhoc_join(priv, bss_desc); 295 if (bss) 296 cfg80211_put_bss(bss); 297 } else { 298 dev_dbg(adapter->dev, "info: Network not found in " 299 "the list, creating adhoc with ssid = %s\n", 300 req_ssid->ssid); 301 ret = mwifiex_adhoc_start(priv, req_ssid); 302 } 303 } 304 305done: 306 kfree(bss_desc); 307 kfree(beacon_ie); 308 return ret; 309} 310 311/* 312 * IOCTL request handler to set host sleep configuration. 313 * 314 * This function prepares the correct firmware command and 315 * issues it. 316 */ 317static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action, 318 int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg) 319 320{ 321 struct mwifiex_adapter *adapter = priv->adapter; 322 int status = 0; 323 u32 prev_cond = 0; 324 325 if (!hs_cfg) 326 return -ENOMEM; 327 328 switch (action) { 329 case HostCmd_ACT_GEN_SET: 330 if (adapter->pps_uapsd_mode) { 331 dev_dbg(adapter->dev, "info: Host Sleep IOCTL" 332 " is blocked in UAPSD/PPS mode\n"); 333 status = -1; 334 break; 335 } 336 if (hs_cfg->is_invoke_hostcmd) { 337 if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) { 338 if (!adapter->is_hs_configured) 339 /* Already cancelled */ 340 break; 341 /* Save previous condition */ 342 prev_cond = le32_to_cpu(adapter->hs_cfg 343 .conditions); 344 adapter->hs_cfg.conditions = 345 cpu_to_le32(hs_cfg->conditions); 346 } else if (hs_cfg->conditions) { 347 adapter->hs_cfg.conditions = 348 cpu_to_le32(hs_cfg->conditions); 349 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 350 if (hs_cfg->gap) 351 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 352 } else if (adapter->hs_cfg.conditions 353 == cpu_to_le32(HOST_SLEEP_CFG_CANCEL)) { 354 /* Return failure if no parameters for HS 355 enable */ 356 status = -1; 357 break; 358 } 359 if (cmd_type == MWIFIEX_SYNC_CMD) 360 status = mwifiex_send_cmd_sync(priv, 361 HostCmd_CMD_802_11_HS_CFG_ENH, 362 HostCmd_ACT_GEN_SET, 0, 363 &adapter->hs_cfg); 364 else 365 status = mwifiex_send_cmd_async(priv, 366 HostCmd_CMD_802_11_HS_CFG_ENH, 367 HostCmd_ACT_GEN_SET, 0, 368 &adapter->hs_cfg); 369 if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) 370 /* Restore previous condition */ 371 adapter->hs_cfg.conditions = 372 cpu_to_le32(prev_cond); 373 } else { 374 adapter->hs_cfg.conditions = 375 cpu_to_le32(hs_cfg->conditions); 376 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; 377 adapter->hs_cfg.gap = (u8)hs_cfg->gap; 378 } 379 break; 380 case HostCmd_ACT_GEN_GET: 381 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions); 382 hs_cfg->gpio = adapter->hs_cfg.gpio; 383 hs_cfg->gap = adapter->hs_cfg.gap; 384 break; 385 default: 386 status = -1; 387 break; 388 } 389 390 return status; 391} 392 393/* 394 * Sends IOCTL request to cancel the existing Host Sleep configuration. 395 * 396 * This function allocates the IOCTL request buffer, fills it 397 * with requisite parameters and calls the IOCTL handler. 398 */ 399int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type) 400{ 401 struct mwifiex_ds_hs_cfg hscfg; 402 403 hscfg.conditions = HOST_SLEEP_CFG_CANCEL; 404 hscfg.is_invoke_hostcmd = true; 405 406 return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, 407 cmd_type, &hscfg); 408} 409EXPORT_SYMBOL_GPL(mwifiex_cancel_hs); 410 411/* 412 * Sends IOCTL request to cancel the existing Host Sleep configuration. 413 * 414 * This function allocates the IOCTL request buffer, fills it 415 * with requisite parameters and calls the IOCTL handler. 416 */ 417int mwifiex_enable_hs(struct mwifiex_adapter *adapter) 418{ 419 struct mwifiex_ds_hs_cfg hscfg; 420 421 if (adapter->hs_activated) { 422 dev_dbg(adapter->dev, "cmd: HS Already actived\n"); 423 return true; 424 } 425 426 adapter->hs_activate_wait_q_woken = false; 427 428 memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg)); 429 hscfg.is_invoke_hostcmd = true; 430 431 if (mwifiex_set_hs_params(mwifiex_get_priv(adapter, 432 MWIFIEX_BSS_ROLE_STA), 433 HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD, 434 &hscfg)) { 435 dev_err(adapter->dev, "IOCTL request HS enable failed\n"); 436 return false; 437 } 438 439 wait_event_interruptible(adapter->hs_activate_wait_q, 440 adapter->hs_activate_wait_q_woken); 441 442 return true; 443} 444EXPORT_SYMBOL_GPL(mwifiex_enable_hs); 445 446/* 447 * IOCTL request handler to get BSS information. 448 * 449 * This function collates the information from different driver structures 450 * to send to the user. 451 */ 452int mwifiex_get_bss_info(struct mwifiex_private *priv, 453 struct mwifiex_bss_info *info) 454{ 455 struct mwifiex_adapter *adapter = priv->adapter; 456 struct mwifiex_bssdescriptor *bss_desc; 457 458 if (!info) 459 return -1; 460 461 bss_desc = &priv->curr_bss_params.bss_descriptor; 462 463 info->bss_mode = priv->bss_mode; 464 465 memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid)); 466 467 memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN); 468 469 info->bss_chan = bss_desc->channel; 470 471 info->region_code = adapter->region_code; 472 473 info->media_connected = priv->media_connected; 474 475 info->max_power_level = priv->max_tx_power_level; 476 info->min_power_level = priv->min_tx_power_level; 477 478 info->adhoc_state = priv->adhoc_state; 479 480 info->bcn_nf_last = priv->bcn_nf_last; 481 482 if (priv->sec_info.wep_enabled) 483 info->wep_status = true; 484 else 485 info->wep_status = false; 486 487 info->is_hs_configured = adapter->is_hs_configured; 488 info->is_deep_sleep = adapter->is_deep_sleep; 489 490 return 0; 491} 492 493/* 494 * The function disables auto deep sleep mode. 495 */ 496int mwifiex_disable_auto_ds(struct mwifiex_private *priv) 497{ 498 struct mwifiex_ds_auto_ds auto_ds; 499 500 auto_ds.auto_ds = DEEP_SLEEP_OFF; 501 502 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 503 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds); 504} 505EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds); 506 507/* 508 * IOCTL request handler to set/get active channel. 509 * 510 * This function performs validity checking on channel/frequency 511 * compatibility and returns failure if not valid. 512 */ 513int mwifiex_bss_set_channel(struct mwifiex_private *priv, 514 struct mwifiex_chan_freq_power *chan) 515{ 516 struct mwifiex_adapter *adapter = priv->adapter; 517 struct mwifiex_chan_freq_power *cfp = NULL; 518 519 if (!chan) 520 return -1; 521 522 if (!chan->channel && !chan->freq) 523 return -1; 524 if (adapter->adhoc_start_band & BAND_AN) 525 adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN; 526 else if (adapter->adhoc_start_band & BAND_A) 527 adapter->adhoc_start_band = BAND_G | BAND_B; 528 if (chan->channel) { 529 if (chan->channel <= MAX_CHANNEL_BAND_BG) 530 cfp = mwifiex_get_cfp(priv, 0, (u16) chan->channel, 0); 531 if (!cfp) { 532 cfp = mwifiex_get_cfp(priv, BAND_A, 533 (u16) chan->channel, 0); 534 if (cfp) { 535 if (adapter->adhoc_11n_enabled) 536 adapter->adhoc_start_band = BAND_A 537 | BAND_AN; 538 else 539 adapter->adhoc_start_band = BAND_A; 540 } 541 } 542 } else { 543 if (chan->freq <= MAX_FREQUENCY_BAND_BG) 544 cfp = mwifiex_get_cfp(priv, 0, 0, chan->freq); 545 if (!cfp) { 546 cfp = mwifiex_get_cfp(priv, BAND_A, 0, chan->freq); 547 if (cfp) { 548 if (adapter->adhoc_11n_enabled) 549 adapter->adhoc_start_band = BAND_A 550 | BAND_AN; 551 else 552 adapter->adhoc_start_band = BAND_A; 553 } 554 } 555 } 556 if (!cfp || !cfp->channel) { 557 dev_err(adapter->dev, "invalid channel/freq\n"); 558 return -1; 559 } 560 priv->adhoc_channel = (u8) cfp->channel; 561 chan->channel = cfp->channel; 562 chan->freq = cfp->freq; 563 564 return 0; 565} 566 567/* 568 * IOCTL request handler to set/get Ad-Hoc channel. 569 * 570 * This function prepares the correct firmware command and 571 * issues it to set or get the ad-hoc channel. 572 */ 573static int mwifiex_bss_ioctl_ibss_channel(struct mwifiex_private *priv, 574 u16 action, u16 *channel) 575{ 576 if (action == HostCmd_ACT_GEN_GET) { 577 if (!priv->media_connected) { 578 *channel = priv->adhoc_channel; 579 return 0; 580 } 581 } else { 582 priv->adhoc_channel = (u8) *channel; 583 } 584 585 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_RF_CHANNEL, 586 action, 0, channel); 587} 588 589/* 590 * IOCTL request handler to change Ad-Hoc channel. 591 * 592 * This function allocates the IOCTL request buffer, fills it 593 * with requisite parameters and calls the IOCTL handler. 594 * 595 * The function follows the following steps to perform the change - 596 * - Get current IBSS information 597 * - Get current channel 598 * - If no change is required, return 599 * - If not connected, change channel and return 600 * - If connected, 601 * - Disconnect 602 * - Change channel 603 * - Perform specific SSID scan with same SSID 604 * - Start/Join the IBSS 605 */ 606int 607mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, u16 channel) 608{ 609 int ret; 610 struct mwifiex_bss_info bss_info; 611 struct mwifiex_ssid_bssid ssid_bssid; 612 u16 curr_chan = 0; 613 struct cfg80211_bss *bss = NULL; 614 struct ieee80211_channel *chan; 615 enum ieee80211_band band; 616 617 memset(&bss_info, 0, sizeof(bss_info)); 618 619 /* Get BSS information */ 620 if (mwifiex_get_bss_info(priv, &bss_info)) 621 return -1; 622 623 /* Get current channel */ 624 ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_GET, 625 &curr_chan); 626 627 if (curr_chan == channel) { 628 ret = 0; 629 goto done; 630 } 631 dev_dbg(priv->adapter->dev, "cmd: updating channel from %d to %d\n", 632 curr_chan, channel); 633 634 if (!bss_info.media_connected) { 635 ret = 0; 636 goto done; 637 } 638 639 /* Do disonnect */ 640 memset(&ssid_bssid, 0, ETH_ALEN); 641 ret = mwifiex_deauthenticate(priv, ssid_bssid.bssid); 642 643 ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_SET, 644 &channel); 645 646 /* Do specific SSID scanning */ 647 if (mwifiex_request_scan(priv, &bss_info.ssid)) { 648 ret = -1; 649 goto done; 650 } 651 652 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 653 chan = __ieee80211_get_channel(priv->wdev->wiphy, 654 ieee80211_channel_to_frequency(channel, 655 band)); 656 657 /* Find the BSS we want using available scan results */ 658 bss = cfg80211_get_bss(priv->wdev->wiphy, chan, bss_info.bssid, 659 bss_info.ssid.ssid, bss_info.ssid.ssid_len, 660 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); 661 if (!bss) 662 wiphy_warn(priv->wdev->wiphy, "assoc: bss %pM not in scan results\n", 663 bss_info.bssid); 664 665 ret = mwifiex_bss_start(priv, bss, &bss_info.ssid); 666done: 667 return ret; 668} 669 670/* 671 * IOCTL request handler to get rate. 672 * 673 * This function prepares the correct firmware command and 674 * issues it to get the current rate if it is connected, 675 * otherwise, the function returns the lowest supported rate 676 * for the band. 677 */ 678static int mwifiex_rate_ioctl_get_rate_value(struct mwifiex_private *priv, 679 struct mwifiex_rate_cfg *rate_cfg) 680{ 681 rate_cfg->is_rate_auto = priv->is_data_rate_auto; 682 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY, 683 HostCmd_ACT_GEN_GET, 0, NULL); 684} 685 686/* 687 * IOCTL request handler to set rate. 688 * 689 * This function prepares the correct firmware command and 690 * issues it to set the current rate. 691 * 692 * The function also performs validation checking on the supplied value. 693 */ 694static int mwifiex_rate_ioctl_set_rate_value(struct mwifiex_private *priv, 695 struct mwifiex_rate_cfg *rate_cfg) 696{ 697 u8 rates[MWIFIEX_SUPPORTED_RATES]; 698 u8 *rate; 699 int rate_index, ret; 700 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; 701 u32 i; 702 struct mwifiex_adapter *adapter = priv->adapter; 703 704 if (rate_cfg->is_rate_auto) { 705 memset(bitmap_rates, 0, sizeof(bitmap_rates)); 706 /* Support all HR/DSSS rates */ 707 bitmap_rates[0] = 0x000F; 708 /* Support all OFDM rates */ 709 bitmap_rates[1] = 0x00FF; 710 /* Support all HT-MCSs rate */ 711 for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates) - 3; i++) 712 bitmap_rates[i + 2] = 0xFFFF; 713 bitmap_rates[9] = 0x3FFF; 714 } else { 715 memset(rates, 0, sizeof(rates)); 716 mwifiex_get_active_data_rates(priv, rates); 717 rate = rates; 718 for (i = 0; (rate[i] && i < MWIFIEX_SUPPORTED_RATES); i++) { 719 dev_dbg(adapter->dev, "info: rate=%#x wanted=%#x\n", 720 rate[i], rate_cfg->rate); 721 if ((rate[i] & 0x7f) == (rate_cfg->rate & 0x7f)) 722 break; 723 } 724 if ((i == MWIFIEX_SUPPORTED_RATES) || !rate[i]) { 725 dev_err(adapter->dev, "fixed data rate %#x is out " 726 "of range\n", rate_cfg->rate); 727 return -1; 728 } 729 memset(bitmap_rates, 0, sizeof(bitmap_rates)); 730 731 rate_index = mwifiex_data_rate_to_index(rate_cfg->rate); 732 733 /* Only allow b/g rates to be set */ 734 if (rate_index >= MWIFIEX_RATE_INDEX_HRDSSS0 && 735 rate_index <= MWIFIEX_RATE_INDEX_HRDSSS3) { 736 bitmap_rates[0] = 1 << rate_index; 737 } else { 738 rate_index -= 1; /* There is a 0x00 in the table */ 739 if (rate_index >= MWIFIEX_RATE_INDEX_OFDM0 && 740 rate_index <= MWIFIEX_RATE_INDEX_OFDM7) 741 bitmap_rates[1] = 1 << (rate_index - 742 MWIFIEX_RATE_INDEX_OFDM0); 743 } 744 } 745 746 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG, 747 HostCmd_ACT_GEN_SET, 0, bitmap_rates); 748 749 return ret; 750} 751 752/* 753 * IOCTL request handler to set/get rate. 754 * 755 * This function can be used to set/get either the rate value or the 756 * rate index. 757 */ 758static int mwifiex_rate_ioctl_cfg(struct mwifiex_private *priv, 759 struct mwifiex_rate_cfg *rate_cfg) 760{ 761 int status; 762 763 if (!rate_cfg) 764 return -1; 765 766 if (rate_cfg->action == HostCmd_ACT_GEN_GET) 767 status = mwifiex_rate_ioctl_get_rate_value(priv, rate_cfg); 768 else 769 status = mwifiex_rate_ioctl_set_rate_value(priv, rate_cfg); 770 771 return status; 772} 773 774/* 775 * Sends IOCTL request to get the data rate. 776 * 777 * This function allocates the IOCTL request buffer, fills it 778 * with requisite parameters and calls the IOCTL handler. 779 */ 780int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, 781 struct mwifiex_rate_cfg *rate) 782{ 783 int ret; 784 785 memset(rate, 0, sizeof(struct mwifiex_rate_cfg)); 786 rate->action = HostCmd_ACT_GEN_GET; 787 ret = mwifiex_rate_ioctl_cfg(priv, rate); 788 789 if (!ret) { 790 if (rate->is_rate_auto) 791 rate->rate = mwifiex_index_to_data_rate(priv, 792 priv->tx_rate, 793 priv->tx_htinfo 794 ); 795 else 796 rate->rate = priv->data_rate; 797 } else { 798 ret = -1; 799 } 800 801 return ret; 802} 803 804/* 805 * IOCTL request handler to set tx power configuration. 806 * 807 * This function prepares the correct firmware command and 808 * issues it. 809 * 810 * For non-auto power mode, all the following power groups are set - 811 * - Modulation class HR/DSSS 812 * - Modulation class OFDM 813 * - Modulation class HTBW20 814 * - Modulation class HTBW40 815 */ 816int mwifiex_set_tx_power(struct mwifiex_private *priv, 817 struct mwifiex_power_cfg *power_cfg) 818{ 819 int ret; 820 struct host_cmd_ds_txpwr_cfg *txp_cfg; 821 struct mwifiex_types_power_group *pg_tlv; 822 struct mwifiex_power_group *pg; 823 u8 *buf; 824 u16 dbm = 0; 825 826 if (!power_cfg->is_power_auto) { 827 dbm = (u16) power_cfg->power_level; 828 if ((dbm < priv->min_tx_power_level) || 829 (dbm > priv->max_tx_power_level)) { 830 dev_err(priv->adapter->dev, "txpower value %d dBm" 831 " is out of range (%d dBm-%d dBm)\n", 832 dbm, priv->min_tx_power_level, 833 priv->max_tx_power_level); 834 return -1; 835 } 836 } 837 buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL); 838 if (!buf) { 839 dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n", 840 __func__); 841 return -ENOMEM; 842 } 843 844 txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf; 845 txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET); 846 if (!power_cfg->is_power_auto) { 847 txp_cfg->mode = cpu_to_le32(1); 848 pg_tlv = (struct mwifiex_types_power_group *) 849 (buf + sizeof(struct host_cmd_ds_txpwr_cfg)); 850 pg_tlv->type = TLV_TYPE_POWER_GROUP; 851 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group); 852 pg = (struct mwifiex_power_group *) 853 (buf + sizeof(struct host_cmd_ds_txpwr_cfg) 854 + sizeof(struct mwifiex_types_power_group)); 855 /* Power group for modulation class HR/DSSS */ 856 pg->first_rate_code = 0x00; 857 pg->last_rate_code = 0x03; 858 pg->modulation_class = MOD_CLASS_HR_DSSS; 859 pg->power_step = 0; 860 pg->power_min = (s8) dbm; 861 pg->power_max = (s8) dbm; 862 pg++; 863 /* Power group for modulation class OFDM */ 864 pg->first_rate_code = 0x00; 865 pg->last_rate_code = 0x07; 866 pg->modulation_class = MOD_CLASS_OFDM; 867 pg->power_step = 0; 868 pg->power_min = (s8) dbm; 869 pg->power_max = (s8) dbm; 870 pg++; 871 /* Power group for modulation class HTBW20 */ 872 pg->first_rate_code = 0x00; 873 pg->last_rate_code = 0x20; 874 pg->modulation_class = MOD_CLASS_HT; 875 pg->power_step = 0; 876 pg->power_min = (s8) dbm; 877 pg->power_max = (s8) dbm; 878 pg->ht_bandwidth = HT_BW_20; 879 pg++; 880 /* Power group for modulation class HTBW40 */ 881 pg->first_rate_code = 0x00; 882 pg->last_rate_code = 0x20; 883 pg->modulation_class = MOD_CLASS_HT; 884 pg->power_step = 0; 885 pg->power_min = (s8) dbm; 886 pg->power_max = (s8) dbm; 887 pg->ht_bandwidth = HT_BW_40; 888 } 889 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG, 890 HostCmd_ACT_GEN_SET, 0, buf); 891 892 kfree(buf); 893 return ret; 894} 895 896/* 897 * IOCTL request handler to get power save mode. 898 * 899 * This function prepares the correct firmware command and 900 * issues it. 901 */ 902int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode) 903{ 904 int ret; 905 struct mwifiex_adapter *adapter = priv->adapter; 906 u16 sub_cmd; 907 908 if (*ps_mode) 909 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; 910 else 911 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; 912 sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS; 913 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH, 914 sub_cmd, BITMAP_STA_PS, NULL); 915 if ((!ret) && (sub_cmd == DIS_AUTO_PS)) 916 ret = mwifiex_send_cmd_async(priv, 917 HostCmd_CMD_802_11_PS_MODE_ENH, 918 GET_PS, 0, NULL); 919 920 return ret; 921} 922 923/* 924 * IOCTL request handler to set/reset WPA IE. 925 * 926 * The supplied WPA IE is treated as a opaque buffer. Only the first field 927 * is checked to determine WPA version. If buffer length is zero, the existing 928 * WPA IE is reset. 929 */ 930static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv, 931 u8 *ie_data_ptr, u16 ie_len) 932{ 933 if (ie_len) { 934 if (ie_len > sizeof(priv->wpa_ie)) { 935 dev_err(priv->adapter->dev, 936 "failed to copy WPA IE, too big\n"); 937 return -1; 938 } 939 memcpy(priv->wpa_ie, ie_data_ptr, ie_len); 940 priv->wpa_ie_len = (u8) ie_len; 941 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n", 942 priv->wpa_ie_len, priv->wpa_ie[0]); 943 944 if (priv->wpa_ie[0] == WLAN_EID_WPA) { 945 priv->sec_info.wpa_enabled = true; 946 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) { 947 priv->sec_info.wpa2_enabled = true; 948 } else { 949 priv->sec_info.wpa_enabled = false; 950 priv->sec_info.wpa2_enabled = false; 951 } 952 } else { 953 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie)); 954 priv->wpa_ie_len = 0; 955 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n", 956 priv->wpa_ie_len, priv->wpa_ie[0]); 957 priv->sec_info.wpa_enabled = false; 958 priv->sec_info.wpa2_enabled = false; 959 } 960 961 return 0; 962} 963 964/* 965 * IOCTL request handler to set/reset WAPI IE. 966 * 967 * The supplied WAPI IE is treated as a opaque buffer. Only the first field 968 * is checked to internally enable WAPI. If buffer length is zero, the existing 969 * WAPI IE is reset. 970 */ 971static int mwifiex_set_wapi_ie(struct mwifiex_private *priv, 972 u8 *ie_data_ptr, u16 ie_len) 973{ 974 if (ie_len) { 975 if (ie_len > sizeof(priv->wapi_ie)) { 976 dev_dbg(priv->adapter->dev, 977 "info: failed to copy WAPI IE, too big\n"); 978 return -1; 979 } 980 memcpy(priv->wapi_ie, ie_data_ptr, ie_len); 981 priv->wapi_ie_len = ie_len; 982 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n", 983 priv->wapi_ie_len, priv->wapi_ie[0]); 984 985 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY) 986 priv->sec_info.wapi_enabled = true; 987 } else { 988 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie)); 989 priv->wapi_ie_len = ie_len; 990 dev_dbg(priv->adapter->dev, 991 "info: Reset wapi_ie_len=%d IE=%#x\n", 992 priv->wapi_ie_len, priv->wapi_ie[0]); 993 priv->sec_info.wapi_enabled = false; 994 } 995 return 0; 996} 997 998/* 999 * IOCTL request handler to set WAPI key. 1000 * 1001 * This function prepares the correct firmware command and 1002 * issues it. 1003 */ 1004static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv, 1005 struct mwifiex_ds_encrypt_key *encrypt_key) 1006{ 1007 1008 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 1009 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, 1010 encrypt_key); 1011} 1012 1013/* 1014 * IOCTL request handler to set WEP network key. 1015 * 1016 * This function prepares the correct firmware command and 1017 * issues it, after validation checks. 1018 */ 1019static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv, 1020 struct mwifiex_ds_encrypt_key *encrypt_key) 1021{ 1022 int ret; 1023 struct mwifiex_wep_key *wep_key; 1024 int index; 1025 1026 if (priv->wep_key_curr_index >= NUM_WEP_KEYS) 1027 priv->wep_key_curr_index = 0; 1028 wep_key = &priv->wep_key[priv->wep_key_curr_index]; 1029 index = encrypt_key->key_index; 1030 if (encrypt_key->key_disable) { 1031 priv->sec_info.wep_enabled = 0; 1032 } else if (!encrypt_key->key_len) { 1033 /* Copy the required key as the current key */ 1034 wep_key = &priv->wep_key[index]; 1035 if (!wep_key->key_length) { 1036 dev_err(priv->adapter->dev, 1037 "key not set, so cannot enable it\n"); 1038 return -1; 1039 } 1040 priv->wep_key_curr_index = (u16) index; 1041 priv->sec_info.wep_enabled = 1; 1042 } else { 1043 wep_key = &priv->wep_key[index]; 1044 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 1045 /* Copy the key in the driver */ 1046 memcpy(wep_key->key_material, 1047 encrypt_key->key_material, 1048 encrypt_key->key_len); 1049 wep_key->key_index = index; 1050 wep_key->key_length = encrypt_key->key_len; 1051 priv->sec_info.wep_enabled = 1; 1052 } 1053 if (wep_key->key_length) { 1054 /* Send request to firmware */ 1055 ret = mwifiex_send_cmd_async(priv, 1056 HostCmd_CMD_802_11_KEY_MATERIAL, 1057 HostCmd_ACT_GEN_SET, 0, NULL); 1058 if (ret) 1059 return ret; 1060 } 1061 if (priv->sec_info.wep_enabled) 1062 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; 1063 else 1064 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; 1065 1066 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL, 1067 HostCmd_ACT_GEN_SET, 0, 1068 &priv->curr_pkt_filter); 1069 1070 return ret; 1071} 1072 1073/* 1074 * IOCTL request handler to set WPA key. 1075 * 1076 * This function prepares the correct firmware command and 1077 * issues it, after validation checks. 1078 * 1079 * Current driver only supports key length of up to 32 bytes. 1080 * 1081 * This function can also be used to disable a currently set key. 1082 */ 1083static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv, 1084 struct mwifiex_ds_encrypt_key *encrypt_key) 1085{ 1086 int ret; 1087 u8 remove_key = false; 1088 struct host_cmd_ds_802_11_key_material *ibss_key; 1089 1090 /* Current driver only supports key length of up to 32 bytes */ 1091 if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) { 1092 dev_err(priv->adapter->dev, "key length too long\n"); 1093 return -1; 1094 } 1095 1096 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { 1097 /* 1098 * IBSS/WPA-None uses only one key (Group) for both receiving 1099 * and sending unicast and multicast packets. 1100 */ 1101 /* Send the key as PTK to firmware */ 1102 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1103 ret = mwifiex_send_cmd_async(priv, 1104 HostCmd_CMD_802_11_KEY_MATERIAL, 1105 HostCmd_ACT_GEN_SET, 1106 KEY_INFO_ENABLED, encrypt_key); 1107 if (ret) 1108 return ret; 1109 1110 ibss_key = &priv->aes_key; 1111 memset(ibss_key, 0, 1112 sizeof(struct host_cmd_ds_802_11_key_material)); 1113 /* Copy the key in the driver */ 1114 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material, 1115 encrypt_key->key_len); 1116 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len, 1117 sizeof(ibss_key->key_param_set.key_len)); 1118 ibss_key->key_param_set.key_type_id 1119 = cpu_to_le16(KEY_TYPE_ID_TKIP); 1120 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED); 1121 1122 /* Send the key as GTK to firmware */ 1123 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST; 1124 } 1125 1126 if (!encrypt_key->key_index) 1127 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; 1128 1129 if (remove_key) 1130 ret = mwifiex_send_cmd_sync(priv, 1131 HostCmd_CMD_802_11_KEY_MATERIAL, 1132 HostCmd_ACT_GEN_SET, 1133 !KEY_INFO_ENABLED, encrypt_key); 1134 else 1135 ret = mwifiex_send_cmd_sync(priv, 1136 HostCmd_CMD_802_11_KEY_MATERIAL, 1137 HostCmd_ACT_GEN_SET, 1138 KEY_INFO_ENABLED, encrypt_key); 1139 1140 return ret; 1141} 1142 1143/* 1144 * IOCTL request handler to set/get network keys. 1145 * 1146 * This is a generic key handling function which supports WEP, WPA 1147 * and WAPI. 1148 */ 1149static int 1150mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv, 1151 struct mwifiex_ds_encrypt_key *encrypt_key) 1152{ 1153 int status; 1154 1155 if (encrypt_key->is_wapi_key) 1156 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key); 1157 else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104) 1158 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key); 1159 else 1160 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key); 1161 return status; 1162} 1163 1164/* 1165 * This function returns the driver version. 1166 */ 1167int 1168mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version, 1169 int max_len) 1170{ 1171 union { 1172 u32 l; 1173 u8 c[4]; 1174 } ver; 1175 char fw_ver[32]; 1176 1177 ver.l = adapter->fw_release_number; 1178 sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]); 1179 1180 snprintf(version, max_len, driver_version, fw_ver); 1181 1182 dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version); 1183 1184 return 0; 1185} 1186 1187/* 1188 * Sends IOCTL request to get signal information. 1189 * 1190 * This function allocates the IOCTL request buffer, fills it 1191 * with requisite parameters and calls the IOCTL handler. 1192 */ 1193int mwifiex_get_signal_info(struct mwifiex_private *priv, 1194 struct mwifiex_ds_get_signal *signal) 1195{ 1196 int status; 1197 1198 signal->selector = ALL_RSSI_INFO_MASK; 1199 1200 /* Signal info can be obtained only if connected */ 1201 if (!priv->media_connected) { 1202 dev_dbg(priv->adapter->dev, 1203 "info: Can not get signal in disconnected state\n"); 1204 return -1; 1205 } 1206 1207 status = mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO, 1208 HostCmd_ACT_GEN_GET, 0, signal); 1209 1210 if (!status) { 1211 if (signal->selector & BCN_RSSI_AVG_MASK) 1212 priv->qual_level = signal->bcn_rssi_avg; 1213 if (signal->selector & BCN_NF_AVG_MASK) 1214 priv->qual_noise = signal->bcn_nf_avg; 1215 } 1216 1217 return status; 1218} 1219 1220/* 1221 * Sends IOCTL request to set encoding parameters. 1222 * 1223 * This function allocates the IOCTL request buffer, fills it 1224 * with requisite parameters and calls the IOCTL handler. 1225 */ 1226int mwifiex_set_encode(struct mwifiex_private *priv, const u8 *key, 1227 int key_len, u8 key_index, int disable) 1228{ 1229 struct mwifiex_ds_encrypt_key encrypt_key; 1230 1231 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); 1232 encrypt_key.key_len = key_len; 1233 if (!disable) { 1234 encrypt_key.key_index = key_index; 1235 if (key_len) 1236 memcpy(encrypt_key.key_material, key, key_len); 1237 } else { 1238 encrypt_key.key_disable = true; 1239 } 1240 1241 return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key); 1242} 1243 1244/* 1245 * Sends IOCTL request to get extended version. 1246 * 1247 * This function allocates the IOCTL request buffer, fills it 1248 * with requisite parameters and calls the IOCTL handler. 1249 */ 1250int 1251mwifiex_get_ver_ext(struct mwifiex_private *priv) 1252{ 1253 struct mwifiex_ver_ext ver_ext; 1254 1255 memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext)); 1256 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT, 1257 HostCmd_ACT_GEN_GET, 0, &ver_ext)) 1258 return -1; 1259 1260 return 0; 1261} 1262 1263/* 1264 * Sends IOCTL request to get statistics information. 1265 * 1266 * This function allocates the IOCTL request buffer, fills it 1267 * with requisite parameters and calls the IOCTL handler. 1268 */ 1269int 1270mwifiex_get_stats_info(struct mwifiex_private *priv, 1271 struct mwifiex_ds_get_stats *log) 1272{ 1273 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG, 1274 HostCmd_ACT_GEN_GET, 0, log); 1275} 1276 1277/* 1278 * IOCTL request handler to read/write register. 1279 * 1280 * This function prepares the correct firmware command and 1281 * issues it. 1282 * 1283 * Access to the following registers are supported - 1284 * - MAC 1285 * - BBP 1286 * - RF 1287 * - PMIC 1288 * - CAU 1289 */ 1290static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv, 1291 struct mwifiex_ds_reg_rw *reg_rw, 1292 u16 action) 1293{ 1294 u16 cmd_no; 1295 1296 switch (le32_to_cpu(reg_rw->type)) { 1297 case MWIFIEX_REG_MAC: 1298 cmd_no = HostCmd_CMD_MAC_REG_ACCESS; 1299 break; 1300 case MWIFIEX_REG_BBP: 1301 cmd_no = HostCmd_CMD_BBP_REG_ACCESS; 1302 break; 1303 case MWIFIEX_REG_RF: 1304 cmd_no = HostCmd_CMD_RF_REG_ACCESS; 1305 break; 1306 case MWIFIEX_REG_PMIC: 1307 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS; 1308 break; 1309 case MWIFIEX_REG_CAU: 1310 cmd_no = HostCmd_CMD_CAU_REG_ACCESS; 1311 break; 1312 default: 1313 return -1; 1314 } 1315 1316 return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw); 1317 1318} 1319 1320/* 1321 * Sends IOCTL request to write to a register. 1322 * 1323 * This function allocates the IOCTL request buffer, fills it 1324 * with requisite parameters and calls the IOCTL handler. 1325 */ 1326int 1327mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type, 1328 u32 reg_offset, u32 reg_value) 1329{ 1330 struct mwifiex_ds_reg_rw reg_rw; 1331 1332 reg_rw.type = cpu_to_le32(reg_type); 1333 reg_rw.offset = cpu_to_le32(reg_offset); 1334 reg_rw.value = cpu_to_le32(reg_value); 1335 1336 return mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_SET); 1337} 1338 1339/* 1340 * Sends IOCTL request to read from a register. 1341 * 1342 * This function allocates the IOCTL request buffer, fills it 1343 * with requisite parameters and calls the IOCTL handler. 1344 */ 1345int 1346mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type, 1347 u32 reg_offset, u32 *value) 1348{ 1349 int ret; 1350 struct mwifiex_ds_reg_rw reg_rw; 1351 1352 reg_rw.type = cpu_to_le32(reg_type); 1353 reg_rw.offset = cpu_to_le32(reg_offset); 1354 ret = mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_GET); 1355 1356 if (ret) 1357 goto done; 1358 1359 *value = le32_to_cpu(reg_rw.value); 1360 1361done: 1362 return ret; 1363} 1364 1365/* 1366 * Sends IOCTL request to read from EEPROM. 1367 * 1368 * This function allocates the IOCTL request buffer, fills it 1369 * with requisite parameters and calls the IOCTL handler. 1370 */ 1371int 1372mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes, 1373 u8 *value) 1374{ 1375 int ret; 1376 struct mwifiex_ds_read_eeprom rd_eeprom; 1377 1378 rd_eeprom.offset = cpu_to_le16((u16) offset); 1379 rd_eeprom.byte_count = cpu_to_le16((u16) bytes); 1380 1381 /* Send request to firmware */ 1382 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS, 1383 HostCmd_ACT_GEN_GET, 0, &rd_eeprom); 1384 1385 if (!ret) 1386 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA); 1387 return ret; 1388} 1389 1390/* 1391 * This function sets a generic IE. In addition to generic IE, it can 1392 * also handle WPA, WPA2 and WAPI IEs. 1393 */ 1394static int 1395mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, 1396 u16 ie_len) 1397{ 1398 int ret = 0; 1399 struct ieee_types_vendor_header *pvendor_ie; 1400 const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 }; 1401 const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 }; 1402 1403 /* If the passed length is zero, reset the buffer */ 1404 if (!ie_len) { 1405 priv->gen_ie_buf_len = 0; 1406 priv->wps.session_enable = false; 1407 1408 return 0; 1409 } else if (!ie_data_ptr) { 1410 return -1; 1411 } 1412 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; 1413 /* Test to see if it is a WPA IE, if not, then it is a gen IE */ 1414 if (((pvendor_ie->element_id == WLAN_EID_WPA) && 1415 (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) || 1416 (pvendor_ie->element_id == WLAN_EID_RSN)) { 1417 1418 /* IE is a WPA/WPA2 IE so call set_wpa function */ 1419 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len); 1420 priv->wps.session_enable = false; 1421 1422 return ret; 1423 } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) { 1424 /* IE is a WAPI IE so call set_wapi function */ 1425 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len); 1426 1427 return ret; 1428 } 1429 /* 1430 * Verify that the passed length is not larger than the 1431 * available space remaining in the buffer 1432 */ 1433 if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) { 1434 1435 /* Test to see if it is a WPS IE, if so, enable 1436 * wps session flag 1437 */ 1438 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; 1439 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) && 1440 (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) { 1441 priv->wps.session_enable = true; 1442 dev_dbg(priv->adapter->dev, 1443 "info: WPS Session Enabled.\n"); 1444 } 1445 1446 /* Append the passed data to the end of the 1447 genIeBuffer */ 1448 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr, 1449 ie_len); 1450 /* Increment the stored buffer length by the 1451 size passed */ 1452 priv->gen_ie_buf_len += ie_len; 1453 } else { 1454 /* Passed data does not fit in the remaining 1455 buffer space */ 1456 ret = -1; 1457 } 1458 1459 /* Return 0, or -1 for error case */ 1460 return ret; 1461} 1462 1463/* 1464 * IOCTL request handler to set/get generic IE. 1465 * 1466 * In addition to various generic IEs, this function can also be 1467 * used to set the ARP filter. 1468 */ 1469static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv, 1470 struct mwifiex_ds_misc_gen_ie *gen_ie, 1471 u16 action) 1472{ 1473 struct mwifiex_adapter *adapter = priv->adapter; 1474 1475 switch (gen_ie->type) { 1476 case MWIFIEX_IE_TYPE_GEN_IE: 1477 if (action == HostCmd_ACT_GEN_GET) { 1478 gen_ie->len = priv->wpa_ie_len; 1479 memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len); 1480 } else { 1481 mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data, 1482 (u16) gen_ie->len); 1483 } 1484 break; 1485 case MWIFIEX_IE_TYPE_ARP_FILTER: 1486 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter)); 1487 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) { 1488 adapter->arp_filter_size = 0; 1489 dev_err(adapter->dev, "invalid ARP filter size\n"); 1490 return -1; 1491 } else { 1492 memcpy(adapter->arp_filter, gen_ie->ie_data, 1493 gen_ie->len); 1494 adapter->arp_filter_size = gen_ie->len; 1495 } 1496 break; 1497 default: 1498 dev_err(adapter->dev, "invalid IE type\n"); 1499 return -1; 1500 } 1501 return 0; 1502} 1503 1504/* 1505 * Sends IOCTL request to set a generic IE. 1506 * 1507 * This function allocates the IOCTL request buffer, fills it 1508 * with requisite parameters and calls the IOCTL handler. 1509 */ 1510int 1511mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len) 1512{ 1513 struct mwifiex_ds_misc_gen_ie gen_ie; 1514 1515 if (ie_len > IEEE_MAX_IE_SIZE) 1516 return -EFAULT; 1517 1518 gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE; 1519 gen_ie.len = ie_len; 1520 memcpy(gen_ie.ie_data, ie, ie_len); 1521 if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET)) 1522 return -EFAULT; 1523 1524 return 0; 1525} 1526