drivers/misc/mediatek/connectivity/conn_soc/drv_wlan/mt_wifi/wlan/mgmt/rlm_obss.c

   1 /*
   2 ** $Id: //Department/DaVinci/BRANCHES/MT6620_WIFI_DRIVER_V2_3/mgmt/rlm_obss.c#2 $
   3 */
   4
   5 /*! \file   "rlm_obss.c"
   6     \brief
   7
   8 */
   9
  10
  11
  12 /*
  13 ** $Log: rlm_obss.c $
  14  *
  15  * 07 17 2012 yuche.tsai
  16  * NULL
  17  * Compile no error before trial run.
  18  *
  19  * 11 15 2011 cm.chang
  20  * NULL
  21  * Avoid possible OBSS scan when BSS is switched
  22  *
  23  * 11 08 2011 cm.chang
  24  * NULL
  25  * Add RLM and CNM debug message for XLOG
  26  *
  27  * 10 25 2011 cm.chang
  28  * [WCXRP00001058] [All Wi-Fi][Driver] Fix sta_rec's phyTypeSet and OBSS scan in AP mode
  29  * Regulation class is changed to 81 in 20_40_coexistence action frame
  30  *
  31  * 04 12 2011 cm.chang
  32  * [WCXRP00000634] [MT6620 Wi-Fi][Driver][FW] 2nd BSS will not support 40MHz bandwidth for concurrency
  33  * .
  34  *
  35  * 03 29 2011 cm.chang
  36  * [WCXRP00000606] [MT6620 Wi-Fi][Driver][FW] Fix klocwork warning
  37  * As CR title
  38  *
  39  * 01 24 2011 cm.chang
  40  * [WCXRP00000384] [MT6620 Wi-Fi][Driver][FW] Handle 20/40 action frame in AP mode and stop ampdu timer when sta_rec is freed
  41  * Process received 20/40 coexistence action frame for AP mode
  42  *
  43  * 01 13 2011 cm.chang
  44  * [WCXRP00000358] [MT6620 Wi-Fi][Driver] Provide concurrent information for each module
  45  * Refine function when rcv a 20/40M public action frame
  46  *
  47  * 01 13 2011 cm.chang
  48  * [WCXRP00000354] [MT6620 Wi-Fi][Driver][FW] Follow NVRAM bandwidth setting
  49  * Use SCO of BSS_INFO to replace user-defined setting variables
  50  *
  51  * 01 12 2011 cm.chang
  52  * [WCXRP00000354] [MT6620 Wi-Fi][Driver][FW] Follow NVRAM bandwidth setting
  53  * User-defined bandwidth is for 2.4G and 5G individually
  54  *
  55  * 10 18 2010 cp.wu
  56  * [WCXRP00000052] [MT6620 Wi-Fi][Driver] Eliminate Linux Compile Warning
  57  * use definition macro to replace hard-coded constant
  58  *
  59  * 09 16 2010 cm.chang
  60  * NULL
  61  * Change conditional compiling options for BOW
  62  *
  63  * 09 10 2010 cm.chang
  64  * NULL
  65  * Always update Beacon content if FW sync OBSS info
  66  *
  67  * 08 24 2010 cm.chang
  68  * NULL
  69  * Support RLM initail channel of Ad-hoc, P2P and BOW
  70  *
  71  * 08 20 2010 cm.chang
  72  * NULL
  73  * Migrate RLM code to host from FW
  74  *
  75  * 07 26 2010 yuche.tsai
  76  *
  77  * Fix compile error while enabling WiFi Direct function.
  78  *
  79  * 07 21 2010 yuche.tsai
  80  *
  81  * Add P2P Scan & Scan Result Parsing & Saving.
  82  *
  83  * 07 08 2010 cp.wu
  84  *
  85  * [WPD00003833] [MT6620 and MT5931] Driver migration - move to new repository.
  86  *
  87  * 07 08 2010 cm.chang
  88  * [WPD00003841][LITE Driver] Migrate RLM/CNM to host driver
  89  * Check draft RLM code for HT cap
  90  *
  91  * 05 07 2010 cm.chang
  92  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
  93  * Process 20/40 coexistence public action frame in AP mode
  94  *
  95  * 05 05 2010 cm.chang
  96  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
  97  * First draft support for 20/40M bandwidth for AP mode
  98  *
  99  * 04 24 2010 cm.chang
 100  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 101  * g_aprBssInfo[] depends on CFG_SUPPORT_P2P and CFG_SUPPORT_BOW
 102  *
 103  * 04 13 2010 cm.chang
 104  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 105  * Add more ASSERT to check exception
 106  *
 107  * 04 07 2010 cm.chang
 108  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 109  * Add virtual test for OBSS scan
 110  *
 111  * 03 30 2010 cm.chang
 112  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 113  * Support 2.4G OBSS scan
 114  *
 115  * 03 03 2010 cm.chang
 116  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 117  * To support CFG_SUPPORT_BCM_STP
 118  *
 119  * 02 13 2010 cm.chang
 120  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 121  * Support PCO in STA mode
 122  *
 123  * 02 12 2010 cm.chang
 124  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 125  * Use bss info array for concurrent handle
 126  *
 127  * 02 05 2010 kevin.huang
 128  * [BORA00000603][WIFISYS] [New Feature] AAA Module Support
 129  * Add AAA Module Support, Revise Net Type to Net Type Index for array lookup
 130  *
 131  * 01 25 2010 cm.chang
 132  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
 133  * Support protection and bandwidth switch
 134 */
 135
 136 /*******************************************************************************
 137 *                         C O M P I L E R   F L A G S
 138 ********************************************************************************
 139 */
 140
 141 /*******************************************************************************
 142 *                    E X T E R N A L   R E F E R E N C E S
 143 ********************************************************************************
 144 */
 145 #include "precomp.h"
 146
 147 /*******************************************************************************
 148 *                              C O N S T A N T S
 149 ********************************************************************************
 150 */
 151
 152 /*******************************************************************************
 153 *                             D A T A   T Y P E S
 154 ********************************************************************************
 155 */
 156
 157 /*******************************************************************************
 158 *                            P U B L I C   D A T A
 159 ********************************************************************************
 160 */
 161
 162 /*******************************************************************************
 163 *                           P R I V A T E   D A T A
 164 ********************************************************************************
 165 */
 166
 167 /*******************************************************************************
 168 *                                 M A C R O S
 169 ********************************************************************************
 170 */
 171
 172 /*******************************************************************************
 173 *                   F U N C T I O N   D E C L A R A T I O N S
 174 ********************************************************************************
 175 */
 176 static VOID
 177 rlmObssScanTimeout (
 178     P_ADAPTER_T prAdapter,
 179     ULONG     ulData
 180     );
 181
 182 /*******************************************************************************
 183 *                              F U N C T I O N S
 184 ********************************************************************************
 185 */
 186
 187 /*----------------------------------------------------------------------------*/
 188 /*!
 189 * \brief
 190 *
 191 * \param[in]
 192 *
 193 * \return none
 194 */
 195 /*----------------------------------------------------------------------------*/
 196 VOID
 197 rlmObssInit (
 198     P_ADAPTER_T     prAdapter
 199     )
 200 {
 201     P_BSS_INFO_T    prBssInfo;
 202     UINT_8          ucNetIdx;
 203
 204     RLM_NET_FOR_EACH(ucNetIdx) {
 205         prBssInfo = &prAdapter->rWifiVar.arBssInfo[ucNetIdx];
 206         ASSERT(prBssInfo);
 207
 208         cnmTimerInitTimer(prAdapter, &prBssInfo->rObssScanTimer,
 209             rlmObssScanTimeout, (ULONG) prBssInfo);
 210     } /* end of RLM_NET_FOR_EACH */
 211 }
 212
 213 /*----------------------------------------------------------------------------*/
 214 /*!
 215 * \brief
 216 *
 217 * \param[in]
 218 *
 219 * \return none
 220 */
 221 /*----------------------------------------------------------------------------*/
 222 BOOLEAN
 223 rlmObssUpdateChnlLists (
 224     P_ADAPTER_T prAdapter,
 225     P_SW_RFB_T  prSwRfb
 226     )
 227 {
 228     return TRUE;
 229 }
 230
 231 /*----------------------------------------------------------------------------*/
 232 /*!
 233 * \brief
 234 *
 235 * \param[in]
 236 *
 237 * \return none
 238 */
 239 /*----------------------------------------------------------------------------*/
 240 VOID
 241 rlmObssScanDone (
 242     P_ADAPTER_T prAdapter,
 243     P_MSG_HDR_T prMsgHdr
 244     )
 245 {
 246     P_MSG_SCN_SCAN_DONE             prScanDoneMsg;
 247     P_BSS_INFO_T                    prBssInfo;
 248     P_MSDU_INFO_T                   prMsduInfo;
 249     P_ACTION_20_40_COEXIST_FRAME    prTxFrame;
 250     UINT_16                         i, u2PayloadLen;
 251
 252     ASSERT(prMsgHdr);
 253
 254     prScanDoneMsg = (P_MSG_SCN_SCAN_DONE) prMsgHdr;
 255     prBssInfo = &prAdapter->rWifiVar.arBssInfo[prScanDoneMsg->ucNetTypeIndex];
 256     ASSERT(prBssInfo);
 257
 258     DBGLOG(RLM, INFO, ("OBSS Scan Done (NetIdx=%d, Mode=%d)\n",
 259         prScanDoneMsg->ucNetTypeIndex, prBssInfo->eCurrentOPMode));
 260
 261     cnmMemFree(prAdapter, prMsgHdr);
 262
 263 #if CFG_ENABLE_WIFI_DIRECT
 264     /* AP mode */
 265     if ((prAdapter->fgIsP2PRegistered) &&
 266         (IS_NET_ACTIVE(prAdapter, prBssInfo->ucNetTypeIndex)) &&
 267         (prBssInfo->eCurrentOPMode == OP_MODE_ACCESS_POINT)) {
 268         return;
 269     }
 270 #endif
 271
 272     /* STA mode */
 273     if (prBssInfo->eCurrentOPMode != OP_MODE_INFRASTRUCTURE ||
 274         !RLM_NET_PARAM_VALID(prBssInfo) || prBssInfo->u2ObssScanInterval == 0) {
 275         DBGLOG(RLM, WARN, ("OBSS Scan Done (NetIdx=%d) -- Aborted!!\n",
 276             prBssInfo->ucNetTypeIndex));
 277         return;
 278     }
 279
 280     /* To do: check 2.4G channel list to decide if obss mgmt should be
 281      *        sent to associated AP. Note: how to handle concurrent network?
 282      * To do: invoke rlmObssChnlLevel() to decide if 20/40 BSS coexistence
 283      *        management frame is needed.
 284      */
 285     if ((prBssInfo->auc2G_20mReqChnlList[0] > 0 ||
 286          prBssInfo->auc2G_NonHtChnlList[0] > 0) &&
 287         (prMsduInfo = (P_MSDU_INFO_T) cnmMgtPktAlloc(prAdapter,
 288                       MAC_TX_RESERVED_FIELD + PUBLIC_ACTION_MAX_LEN)) != NULL) {
 289
 290         DBGLOG(RLM, INFO, ("Send 20/40 coexistence mgmt(20mReq=%d, NonHt=%d)\n",
 291             prBssInfo->auc2G_20mReqChnlList[0],
 292             prBssInfo->auc2G_NonHtChnlList[0]));
 293
 294         prTxFrame = (P_ACTION_20_40_COEXIST_FRAME)
 295             ((ULONG)(prMsduInfo->prPacket) + MAC_TX_RESERVED_FIELD);
 296
 297         prTxFrame->u2FrameCtrl = MAC_FRAME_ACTION;
 298         COPY_MAC_ADDR(prTxFrame->aucDestAddr, prBssInfo->aucBSSID);
 299         COPY_MAC_ADDR(prTxFrame->aucSrcAddr, prBssInfo->aucOwnMacAddr);
 300         COPY_MAC_ADDR(prTxFrame->aucBSSID, prBssInfo->aucBSSID);
 301
 302         prTxFrame->ucCategory = CATEGORY_PUBLIC_ACTION;
 303         prTxFrame->ucAction = ACTION_PUBLIC_20_40_COEXIST;
 304
 305         /* To do: find correct algorithm */
 306         prTxFrame->rBssCoexist.ucId = ELEM_ID_20_40_BSS_COEXISTENCE;
 307         prTxFrame->rBssCoexist.ucLength = 1;
 308         prTxFrame->rBssCoexist.ucData =
 309             (prBssInfo->auc2G_20mReqChnlList[0] > 0) ? BSS_COEXIST_20M_REQ : 0;
 310
 311         u2PayloadLen = 2 + 3;
 312
 313         if (prBssInfo->auc2G_NonHtChnlList[0] > 0) {
 314             ASSERT(prBssInfo->auc2G_NonHtChnlList[0] <= CHNL_LIST_SZ_2G);
 315
 316             prTxFrame->rChnlReport.ucId = ELEM_ID_20_40_INTOLERANT_CHNL_REPORT;
 317             prTxFrame->rChnlReport.ucLength =
 318                 prBssInfo->auc2G_NonHtChnlList[0] + 1;
 319             prTxFrame->rChnlReport.ucRegulatoryClass = 81; /* 2.4GHz, ch1~13 */
 320             for (i = 0; i < prBssInfo->auc2G_NonHtChnlList[0] &&
 321                  i < CHNL_LIST_SZ_2G; i++) {
 322                 prTxFrame->rChnlReport.aucChannelList[i] =
 323                     prBssInfo->auc2G_NonHtChnlList[i+1];
 324             }
 325
 326             u2PayloadLen += IE_SIZE(&prTxFrame->rChnlReport);
 327         }
 328         ASSERT((WLAN_MAC_HEADER_LEN + u2PayloadLen) <= PUBLIC_ACTION_MAX_LEN);
 329
 330         /* Clear up channel lists in 2.4G band */
 331         prBssInfo->auc2G_20mReqChnlList[0] = 0;
 332         prBssInfo->auc2G_NonHtChnlList[0] = 0;
 333
 334
 335         //4 Update information of MSDU_INFO_T
 336         prMsduInfo->ucPacketType = HIF_TX_PACKET_TYPE_MGMT;   /* Management frame */
 337         prMsduInfo->ucStaRecIndex = prBssInfo->prStaRecOfAP->ucIndex;
 338         prMsduInfo->ucNetworkType = prBssInfo->ucNetTypeIndex;
 339         prMsduInfo->ucMacHeaderLength = WLAN_MAC_MGMT_HEADER_LEN;
 340         prMsduInfo->fgIs802_1x = FALSE;
 341         prMsduInfo->fgIs802_11 = TRUE;
 342         prMsduInfo->u2FrameLength = WLAN_MAC_MGMT_HEADER_LEN + u2PayloadLen;
 343         prMsduInfo->ucTxSeqNum = nicIncreaseTxSeqNum(prAdapter);
 344         prMsduInfo->pfTxDoneHandler = NULL;
 345         prMsduInfo->fgIsBasicRate = FALSE;
 346
 347         //4 Enqueue the frame to send this action frame.
 348         nicTxEnqueueMsdu(prAdapter, prMsduInfo);
 349     } /* end of prMsduInfo != NULL */
 350
 351     if (prBssInfo->u2ObssScanInterval > 0) {
 352         DBGLOG(RLM, INFO, ("Set OBSS timer (NetIdx=%d, %d sec)\n",
 353             prBssInfo->ucNetTypeIndex, prBssInfo->u2ObssScanInterval));
 354
 355         cnmTimerStartTimer(prAdapter, &prBssInfo->rObssScanTimer,
 356             prBssInfo->u2ObssScanInterval * MSEC_PER_SEC);
 357     }
 358 }
 359
 360 /*----------------------------------------------------------------------------*/
 361 /*!
 362 * \brief
 363 *
 364 * \param[in]
 365 *
 366 * \return none
 367 */
 368 /*----------------------------------------------------------------------------*/
 369 static VOID
 370 rlmObssScanTimeout (
 371     P_ADAPTER_T prAdapter,
 372     ULONG     ulData
 373     )
 374 {
 375     P_BSS_INFO_T        prBssInfo;
 376
 377     prBssInfo = (P_BSS_INFO_T) ulData;
 378     ASSERT(prBssInfo);
 379
 380 #if CFG_ENABLE_WIFI_DIRECT
 381     if (prAdapter->fgIsP2PRegistered &&
 382         (IS_NET_ACTIVE(prAdapter, prBssInfo->ucNetTypeIndex))) {
 383
 384     /* AP mode */
 385         if (prBssInfo->eCurrentOPMode == OP_MODE_ACCESS_POINT) {
 386
 387         prBssInfo->fgObssActionForcedTo20M = FALSE;
 388
 389         /* Check if Beacon content need to be updated */
 390         rlmUpdateParamsForAP(prAdapter, prBssInfo, FALSE);
 391
 392         return;
 393     }
 394
 395         #if CFG_SUPPORT_WFD
 396         /* WFD streaming */
 397         else {
 398             P_WFD_CFG_SETTINGS_T prWfdCfgSettings = &prAdapter->rWifiVar.prP2pFsmInfo->rWfdConfigureSettings;
 399             P_BSS_INFO_T prP2pBssInfo = &prAdapter->rWifiVar.arBssInfo[NETWORK_TYPE_P2P_INDEX];
 400
 401             /* If WFD is enabled & connected */
 402             if (prWfdCfgSettings->ucWfdEnable &&
 403                 (prWfdCfgSettings->u4WfdFlag & BIT(0)) &&
 404                 RLM_NET_PARAM_VALID(prP2pBssInfo)) {
 405
 406                 /* Skip OBSS scan */
 407                 prBssInfo->u2ObssScanInterval = 0;
 408
 409                 DBGLOG(RLM, INFO, ("WFD is running. Stop net[%u] OBSS scan.\n",
 410                                         (UINT_32)prBssInfo->ucNetTypeIndex));
 411
 412                 return;
 413             }
 414         }
 415         #endif
 416     }
 417 #endif /* end of CFG_ENABLE_WIFI_DIRECT */
 418
 419
 420     /* STA mode */
 421     if (prBssInfo->eCurrentOPMode != OP_MODE_INFRASTRUCTURE ||
 422         !RLM_NET_PARAM_VALID(prBssInfo) || prBssInfo->u2ObssScanInterval == 0) {
 423         DBGLOG(RLM, WARN, ("OBSS Scan timeout (NetIdx=%d) -- Aborted!!\n",
 424             prBssInfo->ucNetTypeIndex));
 425         return;
 426     }
 427
 428     rlmObssTriggerScan(prAdapter, prBssInfo);
 429 }
 430
 431 /*----------------------------------------------------------------------------*/
 432 /*!
 433 * \brief
 434 *
 435 * \param[in]
 436 *
 437 * \return none
 438 */
 439 /*----------------------------------------------------------------------------*/
 440 VOID
 441 rlmObssTriggerScan (
 442     P_ADAPTER_T         prAdapter,
 443     P_BSS_INFO_T        prBssInfo
 444     )
 445 {
 446     P_MSG_SCN_SCAN_REQ  prScanReqMsg;
 447
 448     ASSERT(prBssInfo);
 449
 450     prScanReqMsg = (P_MSG_SCN_SCAN_REQ)
 451             cnmMemAlloc(prAdapter, RAM_TYPE_MSG, sizeof(MSG_SCN_SCAN_REQ));
 452     ASSERT(prScanReqMsg);
 453
 454     if (!prScanReqMsg) {
 455         DBGLOG(RLM, WARN, ("No buf for OBSS scan (NetIdx=%d)!!\n",
 456             prBssInfo->ucNetTypeIndex));
 457
 458         cnmTimerStartTimer(prAdapter, &prBssInfo->rObssScanTimer,
 459             prBssInfo->u2ObssScanInterval * MSEC_PER_SEC);
 460         return;
 461     }
 462
 463     /* It is ok that ucSeqNum is set to fixed value because the same network
 464      * OBSS scan interval is limited to OBSS_SCAN_MIN_INTERVAL (min 10 sec)
 465      * and scan module don't care seqNum of OBSS scanning
 466      */
 467     prScanReqMsg->rMsgHdr.eMsgId = MID_RLM_SCN_SCAN_REQ;
 468     prScanReqMsg->ucSeqNum = 0x33;
 469     prScanReqMsg->ucNetTypeIndex = prBssInfo->ucNetTypeIndex;
 470     prScanReqMsg->eScanType = SCAN_TYPE_ACTIVE_SCAN;
 471     prScanReqMsg->ucSSIDType = SCAN_REQ_SSID_WILDCARD;
 472     prScanReqMsg->ucSSIDLength = 0;
 473     prScanReqMsg->eScanChannel = SCAN_CHANNEL_2G4;
 474     prScanReqMsg->u2IELen = 0;
 475
 476     mboxSendMsg(prAdapter,
 477                 MBOX_ID_0,
 478                 (P_MSG_HDR_T) prScanReqMsg,
 479                 MSG_SEND_METHOD_BUF);
 480
 481     DBGLOG(RLM, INFO, ("Timeout to trigger OBSS scan (NetIdx=%d)!!\n",
 482         prBssInfo->ucNetTypeIndex));
 483 }
 484
 485