Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Jeff Johnson | 32d95a3 | 2012-09-10 13:15:23 -0700 | [diff] [blame^] | 2 | * Copyright (c) 2012, The Linux Foundation. All rights reserved. |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * Airgo Networks, Inc proprietary. All rights reserved. |
| 24 | * This file schBeaconProcess.cc contains beacon processing related |
| 25 | * functions |
| 26 | * |
| 27 | * Author: Sandesh Goel |
| 28 | * Date: 02/25/02 |
| 29 | * History:- |
| 30 | * Date Modified by Modification Information |
| 31 | * -------------------------------------------------------------------- |
| 32 | * |
| 33 | */ |
| 34 | |
| 35 | #include "palTypes.h" |
| 36 | #include "wniCfgAp.h" |
| 37 | |
| 38 | #include "cfgApi.h" |
| 39 | #include "pmmApi.h" |
| 40 | #include "limApi.h" |
| 41 | #include "utilsApi.h" |
| 42 | #include "schDebug.h" |
| 43 | #include "schApi.h" |
| 44 | |
| 45 | #ifdef FEATURE_WLAN_NON_INTEGRATED_SOC |
| 46 | #include "halCommonApi.h" |
| 47 | #endif |
| 48 | |
| 49 | #include "limUtils.h" |
| 50 | #include "limSendMessages.h" |
| 51 | #include "limStaHashApi.h" |
| 52 | |
| 53 | #if defined WLAN_FEATURE_VOWIFI |
| 54 | #include "rrmApi.h" |
| 55 | #endif |
| 56 | |
| 57 | #ifdef FEATURE_WLAN_DIAG_SUPPORT |
| 58 | #include "vos_diag_core_log.h" |
| 59 | #endif //FEATURE_WLAN_DIAG_SUPPORT |
| 60 | |
| 61 | /** |
| 62 | * Number of bytes of variation in beacon length from the last beacon |
| 63 | * to trigger reprogramming of rx delay register |
| 64 | */ |
| 65 | #define SCH_BEACON_LEN_DELTA 3 |
| 66 | |
| 67 | // calculate 2^cw - 1 |
| 68 | #define CW_GET(cw) (((cw) == 0) ? 1 : ((1 << (cw)) - 1)) |
| 69 | |
| 70 | static void |
| 71 | ap_beacon_process( |
| 72 | tpAniSirGlobal pMac, |
| 73 | tANI_U8* pRxPacketInfo, |
| 74 | tpSchBeaconStruct pBcnStruct, |
| 75 | tpUpdateBeaconParams pBeaconParams, |
| 76 | tpPESession psessionEntry) |
| 77 | { |
| 78 | tpSirMacMgmtHdr pMh = WDA_GET_RX_MAC_HEADER(pRxPacketInfo); |
| 79 | tANI_U32 phyMode; |
| 80 | tSirRFBand rfBand = SIR_BAND_UNKNOWN; |
| 81 | //Get RF band from psessionEntry |
| 82 | rfBand = psessionEntry->limRFBand; |
| 83 | |
| 84 | limGetPhyMode(pMac, &phyMode, psessionEntry); |
| 85 | |
| 86 | if(SIR_BAND_5_GHZ == rfBand) |
| 87 | { |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 88 | if (psessionEntry->htCapability) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 89 | { |
| 90 | if (pBcnStruct->channelNumber == psessionEntry->currentOperChannel) |
| 91 | { |
| 92 | //11a (non HT) AP overlaps or |
| 93 | //HT AP with HT op mode as mixed overlaps. |
| 94 | //HT AP with HT op mode as overlap legacy overlaps. |
| 95 | if ((!pBcnStruct->HTInfo.present) || |
| 96 | (eSIR_HT_OP_MODE_MIXED == pBcnStruct->HTInfo.opMode) || |
| 97 | (eSIR_HT_OP_MODE_OVERLAP_LEGACY == pBcnStruct->HTInfo.opMode)) |
| 98 | { |
| 99 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(pMac->lim.gLimOverlap11aParams)); |
| 100 | |
| 101 | if (pMac->lim.gLimOverlap11aParams.numSta && |
| 102 | !pMac->lim.gLimOverlap11aParams.protectionEnabled) |
| 103 | { |
| 104 | limEnable11aProtection(pMac, true, true, pBeaconParams,psessionEntry); |
| 105 | } |
| 106 | } |
| 107 | //HT AP with HT20 op mode overlaps. |
| 108 | else if(eSIR_HT_OP_MODE_NO_LEGACY_20MHZ_HT == pBcnStruct->HTInfo.opMode) |
| 109 | { |
| 110 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(pMac->lim.gLimOverlapHt20Params)); |
| 111 | |
| 112 | if (pMac->lim.gLimOverlapHt20Params.numSta && |
| 113 | !pMac->lim.gLimOverlapHt20Params.protectionEnabled) |
| 114 | { |
| 115 | limEnableHT20Protection(pMac, true, true, pBeaconParams,psessionEntry); |
| 116 | } |
| 117 | } |
| 118 | } |
| 119 | } |
| 120 | } |
| 121 | else if(SIR_BAND_2_4_GHZ == rfBand) |
| 122 | { |
| 123 | //We are 11G AP. |
| 124 | if ((phyMode == WNI_CFG_PHY_MODE_11G) && |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 125 | (false == psessionEntry->htCapability)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 126 | { |
| 127 | if (pBcnStruct->channelNumber == psessionEntry->currentOperChannel) |
| 128 | { |
| 129 | if (((!(pBcnStruct->erpPresent)) && |
| 130 | !(pBcnStruct->HTInfo.present))|| |
| 131 | //if erp not present then 11B AP overlapping |
| 132 | (pBcnStruct->erpPresent && |
| 133 | (pBcnStruct->erpIEInfo.useProtection || |
| 134 | pBcnStruct->erpIEInfo.nonErpPresent))) |
| 135 | { |
| 136 | #ifdef FEATURE_WLAN_CCX |
| 137 | if( psessionEntry->isCCXconnection ) |
| 138 | { |
| 139 | VOS_TRACE (VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_INFO, |
| 140 | "%s: [INFOLOG]CCX 11g erpPresent=%d useProtection=%d nonErpPresent=%d\n", __func__, |
| 141 | pBcnStruct->erpPresent, |
| 142 | pBcnStruct->erpIEInfo.useProtection, |
| 143 | pBcnStruct->erpIEInfo.nonErpPresent); |
| 144 | } |
| 145 | #endif |
| 146 | limEnableOverlap11gProtection(pMac, pBeaconParams, pMh,psessionEntry); |
| 147 | } |
| 148 | |
| 149 | } |
| 150 | } |
| 151 | // handling the case when HT AP has overlapping legacy BSS. |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 152 | else if(psessionEntry->htCapability) |
Jeff Johnson | 04dd8a8 | 2012-06-29 20:41:40 -0700 | [diff] [blame] | 153 | { |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 154 | if (pBcnStruct->channelNumber == psessionEntry->currentOperChannel) |
| 155 | { |
Jeff Johnson | 04dd8a8 | 2012-06-29 20:41:40 -0700 | [diff] [blame] | 156 | if (((!(pBcnStruct->erpPresent)) && |
| 157 | !(pBcnStruct->HTInfo.present))|| |
| 158 | //if erp not present then 11B AP overlapping |
| 159 | (pBcnStruct->erpPresent && |
| 160 | (pBcnStruct->erpIEInfo.useProtection || |
| 161 | pBcnStruct->erpIEInfo.nonErpPresent))) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 162 | { |
| 163 | #ifdef FEATURE_WLAN_CCX |
| 164 | if( psessionEntry->isCCXconnection ) |
| 165 | { |
| 166 | VOS_TRACE (VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_INFO, |
| 167 | "%s: [INFOLOG]CCX 11g erpPresent=%d useProtection=%d nonErpPresent=%d\n", __func__, |
| 168 | pBcnStruct->erpPresent, |
| 169 | pBcnStruct->erpIEInfo.useProtection, |
| 170 | pBcnStruct->erpIEInfo.nonErpPresent); |
| 171 | } |
| 172 | #endif |
| 173 | limEnableOverlap11gProtection(pMac, pBeaconParams, pMh,psessionEntry); |
| 174 | } |
| 175 | |
| 176 | //11g device overlaps |
| 177 | if (pBcnStruct->erpPresent && |
| 178 | !(pBcnStruct->erpIEInfo.useProtection || |
| 179 | pBcnStruct->erpIEInfo.nonErpPresent) && !(pBcnStruct->HTInfo.present)) |
| 180 | { |
| 181 | #ifdef WLAN_SOFTAP_FEATURE |
| 182 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(psessionEntry->gLimOverlap11gParams)); |
| 183 | |
| 184 | if (psessionEntry->gLimOverlap11gParams.numSta && |
| 185 | !psessionEntry->gLimOverlap11gParams.protectionEnabled) |
| 186 | #else |
| 187 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(pMac->lim.gLimOverlap11gParams)); |
| 188 | |
| 189 | if (pMac->lim.gLimOverlap11gParams.numSta && |
| 190 | !pMac->lim.gLimOverlap11gParams.protectionEnabled) |
| 191 | #endif |
| 192 | { |
| 193 | limEnableHtProtectionFrom11g(pMac, true, true, pBeaconParams,psessionEntry); |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | //ht device overlaps. |
| 198 | //here we will check for HT related devices only which might need protection. |
| 199 | //check for 11b and 11g is already done in the previous blocks. |
| 200 | //so we will not check for HT operating mode as MIXED. |
| 201 | if (pBcnStruct->HTInfo.present) |
| 202 | { |
| 203 | //if we are not already in mixed mode or legacy mode as HT operating mode |
| 204 | //and received beacon has HT operating mode as legacy |
| 205 | //then we need to enable protection from 11g station. |
| 206 | //we don't need protection from 11b because if that's needed then our operating |
| 207 | //mode would have already been set to legacy in the previous blocks. |
| 208 | if(eSIR_HT_OP_MODE_OVERLAP_LEGACY == pBcnStruct->HTInfo.opMode) |
| 209 | { |
| 210 | if((eSIR_HT_OP_MODE_MIXED != pMac->lim.gHTOperMode) && |
| 211 | (eSIR_HT_OP_MODE_OVERLAP_LEGACY != pMac->lim.gHTOperMode)) |
| 212 | { |
| 213 | #ifdef WLAN_SOFTAP_FEATURE |
| 214 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(psessionEntry->gLimOverlap11gParams)); |
| 215 | if (psessionEntry->gLimOverlap11gParams.numSta && |
| 216 | !psessionEntry->gLimOverlap11gParams.protectionEnabled) |
| 217 | #else |
| 218 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(pMac->lim.gLimOverlap11gParams)); |
| 219 | |
| 220 | if (pMac->lim.gLimOverlap11gParams.numSta && |
| 221 | !pMac->lim.gLimOverlap11gParams.protectionEnabled) |
| 222 | #endif |
| 223 | { |
| 224 | limEnableHtProtectionFrom11g(pMac, true, true, pBeaconParams,psessionEntry); |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | else if(eSIR_HT_OP_MODE_NO_LEGACY_20MHZ_HT == pBcnStruct->HTInfo.opMode) |
| 229 | { |
| 230 | #ifdef WLAN_SOFTAP_FEATURE |
| 231 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(psessionEntry->gLimOverlapHt20Params)); |
| 232 | if (psessionEntry->gLimOverlapHt20Params.numSta && |
| 233 | !psessionEntry->gLimOverlapHt20Params.protectionEnabled) |
| 234 | #else |
| 235 | limUpdateOverlapStaParam(pMac, pMh->bssId, &(pMac->lim.gLimOverlapHt20Params)); |
| 236 | |
| 237 | if (pMac->lim.gLimOverlapHt20Params.numSta && |
| 238 | !pMac->lim.gLimOverlapHt20Params.protectionEnabled) |
| 239 | #endif |
| 240 | { |
| 241 | limEnableHT20Protection(pMac, true, true, pBeaconParams,psessionEntry); |
| 242 | } |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | } |
| 247 | } |
| 248 | } |
| 249 | pMac->sch.gSchBcnIgnored++; |
| 250 | } |
| 251 | // -------------------------------------------------------------------- |
| 252 | |
| 253 | |
| 254 | |
| 255 | |
| 256 | /** |
| 257 | * __schBeaconProcessNoSession |
| 258 | * |
| 259 | * FUNCTION: |
| 260 | * Process the received beacon frame when |
| 261 | * -- Station is not scanning |
| 262 | * -- No corresponding session is found |
| 263 | * |
| 264 | * LOGIC: |
| 265 | * Following scenarios exist when Session Does not exist: |
| 266 | * * IBSS Beacons, when IBSS session already exists with same SSID, |
| 267 | * but from STA which has not yet joined and has a different BSSID. |
| 268 | * - invoke limHandleIBSScoalescing with the session context of existing IBSS session. |
| 269 | * |
| 270 | * * IBSS Beacons when IBSS session does not exist, only Infra or BT-AMP session exists, |
| 271 | * then save the beacon in the scan results and throw it away. |
| 272 | * |
| 273 | * * Infra Beacons |
| 274 | * - beacons received when no session active |
| 275 | * should not come here, it should be handled as part of scanning, |
| 276 | * else they should not be getting received, should update scan results and drop it if that happens. |
| 277 | * - beacons received when IBSS session active: |
| 278 | * update scan results and drop it. |
| 279 | * - beacons received when Infra session(STA) is active: |
| 280 | * update scan results and drop it |
| 281 | * - beacons received when BT-STA session is active: |
| 282 | * update scan results and drop it. |
| 283 | * - beacons received when Infra/BT-STA or Infra/IBSS is active. |
| 284 | * update scan results and drop it. |
| 285 | * |
| 286 | |
| 287 | */ |
| 288 | static void __schBeaconProcessNoSession(tpAniSirGlobal pMac, tpSchBeaconStruct pBeacon,tANI_U8* pRxPacketInfo) |
| 289 | { |
| 290 | tpPESession psessionEntry = NULL; |
| 291 | |
| 292 | if( (psessionEntry = limIsIBSSSessionActive(pMac)) != NULL) |
| 293 | { |
| 294 | limHandleIBSScoalescing(pMac, pBeacon, pRxPacketInfo, psessionEntry); |
| 295 | } |
| 296 | |
| 297 | //If station(STA/BT-STA/BT-AP/IBSS) mode, Always save the beacon in the scan results, if atleast one session is active |
| 298 | //schBeaconProcessNoSession will be called only when there is atleast one session active, so not checking |
| 299 | //it again here. |
| 300 | limCheckAndAddBssDescription(pMac, pBeacon, pRxPacketInfo, eANI_BOOLEAN_FALSE, eANI_BOOLEAN_FALSE); |
| 301 | return; |
| 302 | } |
| 303 | |
| 304 | |
| 305 | |
| 306 | /* |
| 307 | * __schBeaconProcessForSession |
| 308 | * |
| 309 | * FUNCTION: |
| 310 | * Process the received beacon frame when |
| 311 | * -- Station is not scanning |
| 312 | * -- Corresponding session is found |
| 313 | * |
| 314 | * LOGIC: |
| 315 | * Following scenarios exist when Session exists |
| 316 | * * IBSS STA receving beacons from IBSS Peers, who are part of IBSS. |
| 317 | * - call limHandleIBSScoalescing with that session context. |
| 318 | * * Infra STA receving beacons from AP to which it is connected |
| 319 | * - call schBeaconProcessFromAP with that session's context. |
| 320 | * * BTAMP STA receving beacons from BTAMP AP |
| 321 | * - call schBeaconProcessFromAP with that session's context. |
| 322 | * * BTAMP AP receiving beacons from BTAMP STA |
| 323 | * (here need to make sure BTAP creates session entry for BT STA) |
| 324 | * - just update the beacon count for heart beat purposes for now, |
| 325 | * for now, don't process the beacon. |
| 326 | * * Infra/IBSS both active and receives IBSS beacon: |
| 327 | * - call limHandleIBSScoalescing with that session context. |
| 328 | * * Infra/IBSS both active and receives Infra beacon: |
| 329 | * - call schBeaconProcessFromAP with that session's context. |
| 330 | * any updates to EDCA parameters will be effective for IBSS as well, |
| 331 | * even though no WMM for IBSS ?? Need to figure out how to handle this scenario. |
| 332 | * * Infra/BTSTA both active and receive Infra beacon. |
| 333 | * - change in EDCA parameters on Infra affect the BTSTA link. |
| 334 | * Update the same parameters on BT link |
| 335 | * * Infra/BTSTA both active and receive BT-AP beacon. |
| 336 | * -update beacon cnt for heartbeat |
| 337 | * * Infra/BTAP both active and receive Infra beacon. |
| 338 | * - BT-AP starts advertising BE parameters from Infra AP, if they get changed. |
| 339 | * |
| 340 | * * Infra/BTAP both active and receive BTSTA beacon. |
| 341 | * - update beacon cnt for heartbeat |
| 342 | */ |
| 343 | |
| 344 | static void __schBeaconProcessForSession( tpAniSirGlobal pMac, |
| 345 | tpSchBeaconStruct pBeacon, |
| 346 | tANI_U8* pRxPacketInfo, |
| 347 | tpPESession psessionEntry) |
| 348 | { |
| 349 | tANI_U32 bi; |
| 350 | tANI_U8 bssIdx = 0; |
| 351 | //tpSirMacMgmtHdr pMh = SIR_MAC_BD_TO_MPDUHEADER(pRxPacketInfo); |
| 352 | //tANI_U8 bssid[sizeof(tSirMacAddr)]; |
| 353 | tUpdateBeaconParams beaconParams; |
| 354 | tANI_U8 sendProbeReq = FALSE; |
| 355 | tpDphHashNode pStaDs = NULL; |
| 356 | |
| 357 | |
| 358 | beaconParams.paramChangeBitmap = 0; |
| 359 | |
| 360 | if(eLIM_STA_IN_IBSS_ROLE == psessionEntry->limSystemRole ) |
| 361 | { |
| 362 | limHandleIBSScoalescing(pMac, pBeacon, pRxPacketInfo, psessionEntry); |
| 363 | } |
| 364 | else if( (eLIM_STA_ROLE == psessionEntry->limSystemRole) || |
| 365 | (eLIM_BT_AMP_STA_ROLE == psessionEntry->limSystemRole)) |
| 366 | { |
| 367 | /* |
| 368 | * This handles two cases: |
| 369 | * -- Infra STA receving beacons from AP |
| 370 | * -- BTAMP_STA receving beacons from BTAMP_AP |
| 371 | */ |
| 372 | |
| 373 | |
| 374 | //Always save the beacon into LIM's cached scan results |
| 375 | limCheckAndAddBssDescription(pMac, pBeacon, pRxPacketInfo, eANI_BOOLEAN_FALSE, eANI_BOOLEAN_FALSE); |
| 376 | |
| 377 | /** |
| 378 | * This is the Beacon received from the AP we're currently associated with. Check |
| 379 | * if there are any changes in AP's capabilities |
| 380 | */ |
| 381 | if((tANI_U8) pBeacon->channelNumber != psessionEntry->currentOperChannel) |
| 382 | { |
| 383 | PELOGE(limLog(pMac, LOGE, FL("Channel Change from %d --> %d - " |
| 384 | "Ignoring beacon!\n"), |
| 385 | psessionEntry->currentOperChannel, pBeacon->channelNumber);) |
| 386 | goto fail; |
| 387 | } |
| 388 | limDetectChangeInApCapabilities(pMac, pBeacon, psessionEntry); |
| 389 | if(limGetStaHashBssidx(pMac, DPH_STA_HASH_INDEX_PEER, &bssIdx, psessionEntry) != eSIR_SUCCESS) |
| 390 | goto fail; |
| 391 | beaconParams.bssIdx = bssIdx; |
| 392 | palCopyMemory( pMac->hHdd, ( tANI_U8* )&psessionEntry->lastBeaconTimeStamp, ( tANI_U8* )pBeacon->timeStamp, sizeof(tANI_U64) ); |
| 393 | psessionEntry->lastBeaconDtimCount = pBeacon->tim.dtimCount; |
| 394 | psessionEntry->lastBeaconDtimPeriod= pBeacon->tim.dtimPeriod; |
| 395 | psessionEntry->currentBssBeaconCnt++; |
| 396 | |
| 397 | |
| 398 | |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 399 | MTRACE(macTrace(pMac, TRACE_CODE_RX_MGMT_TSF, psessionEntry->peSessionId, pBeacon->timeStamp[0]);) |
| 400 | MTRACE(macTrace(pMac, TRACE_CODE_RX_MGMT_TSF, psessionEntry->peSessionId, pBeacon->timeStamp[1]);) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 401 | |
| 402 | /* Read beacon interval session Entry */ |
| 403 | bi = psessionEntry->beaconParams.beaconInterval; |
| 404 | if (bi != pBeacon->beaconInterval) |
| 405 | { |
| 406 | PELOG1(schLog(pMac, LOG1, FL("Beacon interval changed from %d to %d\n"), |
| 407 | pBeacon->beaconInterval, bi);) |
| 408 | |
| 409 | bi = pBeacon->beaconInterval; |
| 410 | psessionEntry->beaconParams.beaconInterval = (tANI_U16) bi; |
| 411 | beaconParams.paramChangeBitmap |= PARAM_BCN_INTERVAL_CHANGED; |
| 412 | beaconParams.beaconInterval = (tANI_U16)bi; |
| 413 | } |
| 414 | |
| 415 | if (pBeacon->cfPresent) |
| 416 | { |
| 417 | cfgSetInt(pMac, WNI_CFG_CFP_PERIOD, pBeacon->cfParamSet.cfpPeriod); |
| 418 | limSendCFParams(pMac, bssIdx, pBeacon->cfParamSet.cfpCount, pBeacon->cfParamSet.cfpPeriod); |
| 419 | } |
| 420 | |
| 421 | if (pBeacon->timPresent) |
| 422 | { |
| 423 | cfgSetInt(pMac, WNI_CFG_DTIM_PERIOD, pBeacon->tim.dtimPeriod); |
| 424 | //No need to send DTIM Period and Count to HAL/SMAC |
| 425 | //SMAC already parses TIM bit. |
| 426 | } |
| 427 | |
| 428 | |
| 429 | if(pMac->lim.gLimProtectionControl != WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE) |
| 430 | |
| 431 | limDecideStaProtection(pMac, pBeacon, &beaconParams, psessionEntry); |
| 432 | if (pBeacon->erpPresent) |
| 433 | { |
| 434 | #ifdef WLAN_SOFTAP_FEATURE |
| 435 | if (pBeacon->erpIEInfo.barkerPreambleMode) |
| 436 | limEnableShortPreamble(pMac, false, &beaconParams, psessionEntry); |
| 437 | else |
| 438 | limEnableShortPreamble(pMac, true, &beaconParams, psessionEntry); |
| 439 | #else |
| 440 | if (pBeacon->erpIEInfo.barkerPreambleMode) |
| 441 | limEnableShortPreamble(pMac, false, &beaconParams); |
| 442 | else |
| 443 | limEnableShortPreamble(pMac, true, &beaconParams); |
| 444 | #endif |
| 445 | } |
| 446 | limUpdateShortSlot(pMac, pBeacon, &beaconParams,psessionEntry); |
| 447 | |
| 448 | pStaDs = dphGetHashEntry(pMac, DPH_STA_HASH_INDEX_PEER, &psessionEntry->dph.dphHashTable); |
| 449 | if ((pBeacon->wmeEdcaPresent && (psessionEntry->limWmeEnabled)) || |
| 450 | (pBeacon->edcaPresent && (psessionEntry->limQosEnabled))) |
| 451 | { |
| 452 | if(pBeacon->edcaParams.qosInfo.count != psessionEntry->gLimEdcaParamSetCount) |
| 453 | { |
| 454 | if (schBeaconEdcaProcess(pMac, &pBeacon->edcaParams, psessionEntry) != eSIR_SUCCESS) |
| 455 | PELOGE(schLog(pMac, LOGE, FL("EDCA parameter processing error\n"));) |
| 456 | else if(pStaDs != NULL) |
| 457 | { |
| 458 | // If needed, downgrade the EDCA parameters |
| 459 | limSetActiveEdcaParams(pMac, psessionEntry->gLimEdcaParams, psessionEntry); |
| 460 | |
| 461 | if (pStaDs->aniPeer == eANI_BOOLEAN_TRUE) |
| 462 | limSendEdcaParams(pMac, psessionEntry->gLimEdcaParamsActive, pStaDs->bssId, eANI_BOOLEAN_TRUE); |
| 463 | else |
| 464 | limSendEdcaParams(pMac, psessionEntry->gLimEdcaParamsActive, pStaDs->bssId, eANI_BOOLEAN_FALSE); |
| 465 | } |
| 466 | else |
| 467 | PELOGE(limLog(pMac, LOGE, FL("Self Entry missing in Hash Table\n"));) |
| 468 | } |
| 469 | } |
| 470 | else if( (pBeacon->qosCapabilityPresent && psessionEntry->limQosEnabled) && |
| 471 | (pBeacon->qosCapability.qosInfo.count != psessionEntry->gLimEdcaParamSetCount)) |
| 472 | sendProbeReq = TRUE; |
| 473 | } |
| 474 | |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 475 | if ( psessionEntry->htCapability && pBeacon->HTInfo.present ) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 476 | { |
| 477 | limUpdateStaRunTimeHTSwitchChnlParams( pMac, &pBeacon->HTInfo, bssIdx,psessionEntry); |
| 478 | } |
| 479 | |
| 480 | #if defined(ANI_PRODUCT_TYPE_CLIENT) || defined(ANI_AP_CLIENT_SDK) |
| 481 | if ( (psessionEntry->limSystemRole == eLIM_STA_ROLE) ||(psessionEntry->limSystemRole == eLIM_BT_AMP_STA_ROLE) || |
| 482 | (psessionEntry->limSystemRole == eLIM_STA_IN_IBSS_ROLE) ) |
| 483 | { |
| 484 | if(pBeacon->quietIEPresent) |
| 485 | { |
| 486 | limUpdateQuietIEFromBeacon(pMac, &(pBeacon->quietIE), psessionEntry); |
| 487 | } |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 488 | else if ((psessionEntry->gLimSpecMgmt.quietState == eLIM_QUIET_BEGIN) || |
| 489 | (psessionEntry->gLimSpecMgmt.quietState == eLIM_QUIET_RUNNING)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 490 | { |
| 491 | PELOG1(limLog(pMac, LOG1, FL("Received a beacon without Quiet IE\n"));) |
| 492 | limCancelDot11hQuiet(pMac, psessionEntry); |
| 493 | } |
| 494 | |
| 495 | /* Channel Switch information element updated */ |
| 496 | if(pBeacon->channelSwitchPresent || |
| 497 | pBeacon->propIEinfo.propChannelSwitchPresent) |
| 498 | { |
| 499 | limUpdateChannelSwitch(pMac, pBeacon, psessionEntry); |
| 500 | } |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 501 | else if (psessionEntry->gLimSpecMgmt.dot11hChanSwState == eLIM_11H_CHANSW_RUNNING) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 502 | { |
| 503 | limCancelDot11hChannelSwitch(pMac, psessionEntry); |
| 504 | } |
| 505 | } |
| 506 | #endif |
| 507 | |
| 508 | #if defined FEATURE_WLAN_CCX |
| 509 | if( psessionEntry->isCCXconnection ) |
| 510 | { |
| 511 | tPowerdBm localConstraint = 0, regMax = 0, maxTxPower = 0; |
| 512 | if (pBeacon->ccxTxPwr.present) |
| 513 | { |
| 514 | localConstraint = pBeacon->ccxTxPwr.power_limit; |
| 515 | regMax = cfgGetRegulatoryMaxTransmitPower( pMac, psessionEntry->currentOperChannel ); |
Jeff Johnson | 04dd8a8 | 2012-06-29 20:41:40 -0700 | [diff] [blame] | 516 | maxTxPower = limGetMaxTxPower(regMax, localConstraint, pMac->roam.configParam.nTxPowerCap); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 517 | |
| 518 | //If maxTxPower is increased or decreased |
| 519 | if( maxTxPower != psessionEntry->maxTxPower ) |
| 520 | { |
| 521 | limLog( pMac, LOG1, "RegMax = %d, lpc = %d, MaxTx = %d", regMax, localConstraint, maxTxPower ); |
| 522 | limLog( pMac, LOG1, "Local power constraint change..updating new maxTx power to HAL"); |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 523 | if( limSendSetMaxTxPowerReq ( pMac, maxTxPower, psessionEntry ) == eSIR_SUCCESS ) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 524 | psessionEntry->maxTxPower = maxTxPower; |
| 525 | } |
| 526 | } |
| 527 | } |
| 528 | #endif |
| 529 | |
| 530 | |
| 531 | #if defined WLAN_FEATURE_VOWIFI |
| 532 | if( pMac->rrm.rrmPEContext.rrmEnable ) |
| 533 | { |
| 534 | tPowerdBm localConstraint = 0, regMax = 0, maxTxPower = 0; |
| 535 | if (pBeacon->powerConstraintPresent && pMac->rrm.rrmPEContext.rrmEnable) |
| 536 | { |
| 537 | localConstraint = pBeacon->localPowerConstraint.localPowerConstraints; |
| 538 | } |
| 539 | else |
| 540 | { |
| 541 | localConstraint = 0; |
| 542 | } |
| 543 | regMax = cfgGetRegulatoryMaxTransmitPower( pMac, psessionEntry->currentOperChannel ); |
| 544 | maxTxPower = VOS_MIN( regMax , (regMax - localConstraint) ); |
| 545 | //If maxTxPower is increased or decreased |
| 546 | if( maxTxPower != psessionEntry->maxTxPower ) |
| 547 | { |
| 548 | #if defined WLAN_VOWIFI_DEBUG |
| 549 | limLog( pMac, LOGE, "Regulatory max = %d, local power constraint = %d, max tx = %d", regMax, localConstraint, maxTxPower ); |
| 550 | limLog( pMac, LOGE, "Local power constraint change..updating mew maxTx power to HAL"); |
| 551 | #endif |
Jeff Johnson | 43971f5 | 2012-07-17 12:26:56 -0700 | [diff] [blame] | 552 | if( rrmSendSetMaxTxPowerReq ( pMac, maxTxPower, psessionEntry ) == eSIR_SUCCESS ) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 553 | psessionEntry->maxTxPower = maxTxPower; |
| 554 | |
| 555 | } |
| 556 | } |
| 557 | #endif |
| 558 | |
| 559 | // Indicate to LIM that Beacon is received |
| 560 | |
| 561 | if (pBeacon->HTInfo.present) |
| 562 | limReceivedHBHandler(pMac, (tANI_U8)pBeacon->HTInfo.primaryChannel, psessionEntry); |
| 563 | else |
| 564 | limReceivedHBHandler(pMac, (tANI_U8)pBeacon->channelNumber, psessionEntry); |
| 565 | |
| 566 | // I don't know if any additional IE is required here. Currently, not include addIE. |
| 567 | if(sendProbeReq) |
| 568 | limSendProbeReqMgmtFrame(pMac, &psessionEntry->ssId, |
| 569 | psessionEntry->bssId, psessionEntry->currentOperChannel,psessionEntry->selfMacAddr, |
| 570 | psessionEntry->dot11mode, 0, NULL); |
| 571 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 572 | if(beaconParams.paramChangeBitmap) |
| 573 | { |
| 574 | PELOGW(schLog(pMac, LOGW, FL("Beacon for session[%d] got changed. \n"), psessionEntry->peSessionId);) |
| 575 | PELOGW(schLog(pMac, LOGW, FL("sending beacon param change bitmap: 0x%x \n"), beaconParams.paramChangeBitmap);) |
| 576 | limSendBeaconParams(pMac, &beaconParams, psessionEntry); |
| 577 | } |
| 578 | |
| 579 | fail: |
| 580 | return; |
| 581 | |
| 582 | } |
| 583 | |
| 584 | |
| 585 | |
| 586 | /** |
| 587 | * schBeaconProcess |
| 588 | * |
| 589 | * FUNCTION: |
| 590 | * Process the received beacon frame |
| 591 | * |
| 592 | * LOGIC: |
| 593 | * |
| 594 | * ASSUMPTIONS: |
| 595 | * |
| 596 | * NOTE: |
| 597 | * |
| 598 | * @param pRxPacketInfo pointer to buffer descriptor |
| 599 | * @return None |
| 600 | */ |
| 601 | |
| 602 | void schBeaconProcess(tpAniSirGlobal pMac, tANI_U8* pRxPacketInfo, tpPESession psessionEntry) |
| 603 | { |
| 604 | static tSchBeaconStruct beaconStruct; |
| 605 | tUpdateBeaconParams beaconParams; |
| 606 | tpPESession pAPSession = NULL; |
| 607 | beaconParams.paramChangeBitmap = 0; |
| 608 | |
| 609 | pMac->sch.gSchBcnRcvCnt++; |
| 610 | |
| 611 | // Convert the beacon frame into a structure |
| 612 | if (sirConvertBeaconFrame2Struct(pMac, (tANI_U8 *) pRxPacketInfo, &beaconStruct)!= eSIR_SUCCESS) |
| 613 | { |
| 614 | PELOGE(schLog(pMac, LOGE, FL("beacon parsing failed\n"));) |
| 615 | pMac->sch.gSchBcnParseErrorCnt++; |
| 616 | return; |
| 617 | } |
| 618 | |
| 619 | if (beaconStruct.ssidPresent) |
| 620 | { |
| 621 | beaconStruct.ssId.ssId[beaconStruct.ssId.length] = 0; |
| 622 | } |
| 623 | |
| 624 | /* |
| 625 | * First process the beacon in the context of any existing AP or BTAP session. |
| 626 | * This takes cares of following two scenarios: |
| 627 | * - psessionEntry = NULL: |
| 628 | * e.g. beacon received from a neighboring BSS, you want to apply the protection settings to BTAP/InfraAP beacons |
| 629 | * - psessionEntry is non NULL: |
| 630 | * e.g. beacon received is from the INFRA AP to which you are connected on another concurrent link. |
| 631 | * In this case also, we want to apply the protection settings(as advertised by Infra AP) to BTAP beacons |
| 632 | * |
| 633 | * |
| 634 | */ |
| 635 | |
| 636 | if((pAPSession = limIsApSessionActive(pMac)) != NULL) |
| 637 | { |
| 638 | beaconParams.bssIdx = pAPSession->bssIdx; |
| 639 | #ifdef WLAN_SOFTAP_FEATURE |
| 640 | if (pAPSession->gLimProtectionControl != WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE) |
| 641 | #else |
| 642 | if (pMac->lim.gLimProtectionControl != WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE) |
| 643 | #endif |
| 644 | ap_beacon_process(pMac, pRxPacketInfo, &beaconStruct, &beaconParams, pAPSession); |
| 645 | |
| 646 | if (beaconParams.paramChangeBitmap) |
| 647 | { |
| 648 | //Update the beacons and apply the new settings to HAL |
| 649 | schSetFixedBeaconFields(pMac, pAPSession); |
| 650 | PELOG1(schLog(pMac, LOG1, FL("Beacon for PE session[%d] got changed. \n"), pAPSession->peSessionId);) |
| 651 | PELOG1(schLog(pMac, LOG1, FL("sending beacon param change bitmap: 0x%x \n"), beaconParams.paramChangeBitmap);) |
| 652 | limSendBeaconParams(pMac, &beaconParams, pAPSession); |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | /* |
| 657 | * Now process the beacon in the context of the BSS which is transmitting the beacons, if one is found |
| 658 | */ |
| 659 | if(psessionEntry == NULL) |
| 660 | { |
| 661 | __schBeaconProcessNoSession(pMac, &beaconStruct, pRxPacketInfo ); |
| 662 | } |
| 663 | else |
| 664 | { |
| 665 | __schBeaconProcessForSession(pMac, &beaconStruct, pRxPacketInfo, psessionEntry ); |
| 666 | } |
| 667 | |
| 668 | } |
| 669 | |
| 670 | |
| 671 | |
| 672 | |
| 673 | |
| 674 | // -------------------------------------------------------------------- |
| 675 | /** |
| 676 | * schBeaconEdcaProcess |
| 677 | * |
| 678 | * FUNCTION: |
| 679 | * Process the EDCA parameter set in the received beacon frame |
| 680 | * |
| 681 | * LOGIC: |
| 682 | * |
| 683 | * ASSUMPTIONS: |
| 684 | * |
| 685 | * NOTE: |
| 686 | * |
| 687 | * @param edca reference to edca parameters in beacon struct |
| 688 | * @return success |
| 689 | */ |
| 690 | |
| 691 | tSirRetStatus schBeaconEdcaProcess(tpAniSirGlobal pMac, tSirMacEdcaParamSetIE *edca, tpPESession psessionEntry) |
| 692 | { |
| 693 | tANI_U8 i; |
| 694 | #ifdef FEATURE_WLAN_DIAG_SUPPORT |
| 695 | vos_log_qos_edca_pkt_type *log_ptr = NULL; |
| 696 | #endif //FEATURE_WLAN_DIAG_SUPPORT |
| 697 | |
| 698 | PELOG1(schLog(pMac, LOG1, FL("Updating parameter set count: Old %d ---> new %d\n"), |
| 699 | psessionEntry->gLimEdcaParamSetCount, edca->qosInfo.count);) |
| 700 | |
| 701 | psessionEntry->gLimEdcaParamSetCount = edca->qosInfo.count; |
| 702 | psessionEntry->gLimEdcaParams[EDCA_AC_BE] = edca->acbe; |
| 703 | psessionEntry->gLimEdcaParams[EDCA_AC_BK] = edca->acbk; |
| 704 | psessionEntry->gLimEdcaParams[EDCA_AC_VI] = edca->acvi; |
| 705 | psessionEntry->gLimEdcaParams[EDCA_AC_VO] = edca->acvo; |
| 706 | //log: LOG_WLAN_QOS_EDCA_C |
| 707 | #ifdef FEATURE_WLAN_DIAG_SUPPORT |
| 708 | WLAN_VOS_DIAG_LOG_ALLOC(log_ptr, vos_log_qos_edca_pkt_type, LOG_WLAN_QOS_EDCA_C); |
| 709 | if(log_ptr) |
| 710 | { |
| 711 | log_ptr->aci_be = psessionEntry->gLimEdcaParams[EDCA_AC_BE].aci.aci; |
| 712 | log_ptr->cw_be = psessionEntry->gLimEdcaParams[EDCA_AC_BE].cw.max << 4 | |
| 713 | psessionEntry->gLimEdcaParams[EDCA_AC_BE].cw.min; |
| 714 | log_ptr->txoplimit_be = psessionEntry->gLimEdcaParams[EDCA_AC_BE].txoplimit; |
| 715 | log_ptr->aci_bk = psessionEntry->gLimEdcaParams[EDCA_AC_BK].aci.aci; |
| 716 | log_ptr->cw_bk = psessionEntry->gLimEdcaParams[EDCA_AC_BK].cw.max << 4 | |
| 717 | psessionEntry->gLimEdcaParams[EDCA_AC_BK].cw.min; |
| 718 | log_ptr->txoplimit_bk = psessionEntry->gLimEdcaParams[EDCA_AC_BK].txoplimit; |
| 719 | log_ptr->aci_vi = psessionEntry->gLimEdcaParams[EDCA_AC_VI].aci.aci; |
| 720 | log_ptr->cw_vi = psessionEntry->gLimEdcaParams[EDCA_AC_VI].cw.max << 4 | |
| 721 | psessionEntry->gLimEdcaParams[EDCA_AC_VI].cw.min; |
| 722 | log_ptr->txoplimit_vi = psessionEntry->gLimEdcaParams[EDCA_AC_VI].txoplimit; |
| 723 | log_ptr->aci_vo = psessionEntry->gLimEdcaParams[EDCA_AC_VO].aci.aci; |
| 724 | log_ptr->cw_vo = psessionEntry->gLimEdcaParams[EDCA_AC_VO].cw.max << 4 | |
| 725 | psessionEntry->gLimEdcaParams[EDCA_AC_VO].cw.min; |
| 726 | log_ptr->txoplimit_vo = psessionEntry->gLimEdcaParams[EDCA_AC_VO].txoplimit; |
| 727 | } |
| 728 | WLAN_VOS_DIAG_LOG_REPORT(log_ptr); |
| 729 | #endif //FEATURE_WLAN_DIAG_SUPPORT |
| 730 | PELOG1(schLog(pMac, LOGE, FL("Updating Local EDCA Params(gLimEdcaParams) to: "));) |
| 731 | for(i=0; i<MAX_NUM_AC; i++) |
| 732 | { |
| 733 | PELOG1(schLog(pMac, LOG1, FL("AC[%d]: AIFSN: %d, ACM %d, CWmin %d, CWmax %d, TxOp %d\n"), |
| 734 | i, |
| 735 | psessionEntry->gLimEdcaParams[i].aci.aifsn, |
| 736 | psessionEntry->gLimEdcaParams[i].aci.acm, |
| 737 | psessionEntry->gLimEdcaParams[i].cw.min, |
| 738 | psessionEntry->gLimEdcaParams[i].cw.max, |
| 739 | psessionEntry->gLimEdcaParams[i].txoplimit);) |
| 740 | } |
| 741 | |
| 742 | return eSIR_SUCCESS; |
| 743 | } |