drivers/net/wireless/mt5931_kk/drv_wlan/mgmt/p2p_rlm_obss.c

   1 /*
   2 ** $Id: @(#) gl_p2p_cfg80211.c@@
   3 */
   4
   5 /*! \file   gl_p2p_cfg80211.c
   6     \brief  Main routines of Linux driver interface for Wi-Fi Direct
   7             using cfg80211 interface
   8
   9     This file contains the main routines of Linux driver for MediaTek Inc. 802.11
  10     Wireless LAN Adapters.
  11 */
  12
  13 /*******************************************************************************
  14 * Copyright (c) 2007 MediaTek Inc.
  15 *
  16 * All rights reserved. Copying, compilation, modification, distribution
  17 * or any other use whatsoever of this material is strictly prohibited
  18 * except in accordance with a Software License Agreement with
  19 * MediaTek Inc.
  20 ********************************************************************************
  21 */
  22
  23 /*******************************************************************************
  24 * LEGAL DISCLAIMER
  25 *
  26 * BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND
  27 * AGREES THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK
  28 * SOFTWARE") RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE
  29 * PROVIDED TO BUYER ON AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY
  30 * DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
  31 * LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  32 * PARTICULAR PURPOSE OR NONINFRINGEMENT. NEITHER DOES MEDIATEK PROVIDE
  33 * ANY WARRANTY WHATSOEVER WITH RESPECT TO THE SOFTWARE OF ANY THIRD PARTY
  34 * WHICH MAY BE USED BY, INCORPORATED IN, OR SUPPLIED WITH THE MEDIATEK
  35 * SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY
  36 * WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE
  37 * FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S SPECIFICATION OR TO
  38 * CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
  39 *
  40 * BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
  41 * LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL
  42 * BE, AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT
  43 * ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY
  44 * BUYER TO MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
  45 *
  46 * THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
  47 * WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT
  48 * OF LAWS PRINCIPLES.  ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING
  49 * THEREOF AND RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN
  50 * FRANCISCO, CA, UNDER THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE
  51 * (ICC).
  52 ********************************************************************************
  53 */
  54
  55
  56 /*******************************************************************************
  57 *                         C O M P I L E R   F L A G S
  58 ********************************************************************************
  59 */
  60
  61 /*******************************************************************************
  62 *                    E X T E R N A L   R E F E R E N C E S
  63 ********************************************************************************
  64 */
  65
  66 /*******************************************************************************
  67 *                              C O N S T A N T S
  68 ********************************************************************************
  69 */
  70
  71 /*******************************************************************************
  72 *                             D A T A   T Y P E S
  73 ********************************************************************************
  74 */
  75
  76 /*******************************************************************************
  77 *                            P U B L I C   D A T A
  78 ********************************************************************************
  79 */
  80
  81 /*******************************************************************************
  82 *                           P R I V A T E   D A T A
  83 ********************************************************************************
  84 */
  85
  86 /*******************************************************************************
  87 *                                 M A C R O S
  88 ********************************************************************************
  89 */
  90
  91 /*******************************************************************************
  92 *                   F U N C T I O N   D E C L A R A T I O N S
  93 ********************************************************************************
  94 */
  95
  96 /*******************************************************************************
  97 *                              F U N C T I O N S
  98 ********************************************************************************
  99 */
 100
 101
 102 #include "precomp.h"
 103
 104
 105 static UINT_8
 106 rlmObssChnlLevelIn2G4 (
 107     P_BSS_INFO_T        prBssInfo,
 108     UINT_8              ucPriChannel,
 109     ENUM_CHNL_EXT_T     eExtend
 110     );
 111
 112 static UINT_8
 113 rlmObssChnlLevelIn5G (
 114     P_BSS_INFO_T        prBssInfo,
 115     UINT_8              ucPriChannel,
 116     ENUM_CHNL_EXT_T     eExtend
 117     );
 118
 119
 120 /*----------------------------------------------------------------------------*/
 121 /*!
 122 * \brief Different concurrent network has itself channel lists, and
 123 *        concurrent networks should have been recorded in channel lists.
 124 *        If role of active P2P is GO, assume associated AP of AIS will
 125 *        record our Beacon for P2P GO because of same channel.
 126 *
 127 *        Note: If we have scenario of different channel in the future,
 128 *              the internal FW communication channel shall be established.
 129 *
 130 * \param[in]
 131 *
 132 * \return none
 133 */
 134 /*----------------------------------------------------------------------------*/
 135 UINT_8
 136 rlmObssChnlLevel (
 137     P_BSS_INFO_T        prBssInfo,
 138     ENUM_BAND_T         eBand,
 139     UINT_8              ucPriChannel,
 140     ENUM_CHNL_EXT_T     eExtend
 141     )
 142 {
 143     UINT_8              ucChannelLevel;
 144
 145     ASSERT(prBssInfo);
 146
 147     if (eBand == BAND_2G4) {
 148         ucChannelLevel = rlmObssChnlLevelIn2G4(prBssInfo, ucPriChannel,eExtend);
 149
 150         /* (TBD) If concurrent networks permit different channel, extra
 151          *       channel judgement should be added. Please refer to
 152          *       previous version of this file.
 153          */
 154     }
 155     else if (eBand == BAND_5G) {
 156         ucChannelLevel = rlmObssChnlLevelIn5G(prBssInfo, ucPriChannel,eExtend);
 157
 158         /* (TBD) If concurrent networks permit different channel, extra
 159          *       channel judgement should be added. Please refer to
 160          *       previous version of this file.
 161          */
 162     }
 163     else {
 164         ucChannelLevel = CHNL_LEVEL0;
 165     }
 166
 167     return ucChannelLevel;
 168 }
 169
 170 /*----------------------------------------------------------------------------*/
 171 /*!
 172 * \brief
 173 *
 174 * \param[in]
 175 *
 176 * \return none
 177 */
 178 /*----------------------------------------------------------------------------*/
 179 static UINT_8
 180 rlmObssChnlLevelIn2G4 (
 181     P_BSS_INFO_T        prBssInfo,
 182     UINT_8              ucPriChannel,
 183     ENUM_CHNL_EXT_T     eExtend
 184     )
 185 {
 186     UINT_8      i, ucChannelLevel;
 187     UINT_8      ucSecChannel, ucCenterChannel;
 188     UINT_8      ucAffectedChnl_L, ucAffectedChnl_H;
 189
 190     ASSERT(prBssInfo);
 191
 192     ucChannelLevel = CHNL_LEVEL2;
 193
 194     /* Calculate center channel for 2.4G band */
 195     if (eExtend == CHNL_EXT_SCA) {
 196         ucCenterChannel = ucPriChannel + 2;
 197         ucSecChannel = ucPriChannel + 4;
 198     }
 199     else if (eExtend == CHNL_EXT_SCB) {
 200         ucCenterChannel = ucPriChannel - 2;
 201         ucSecChannel = ucPriChannel - 4;
 202     }
 203     else {
 204         return CHNL_LEVEL0;
 205     }
 206     ASSERT(ucCenterChannel >= 1 && ucCenterChannel <= 14);
 207
 208     /* Calculated low/upper channels in affected freq range */
 209     ucAffectedChnl_L = (ucCenterChannel <= AFFECTED_CHNL_OFFSET) ?
 210         1 : (ucCenterChannel - AFFECTED_CHNL_OFFSET);
 211
 212     ucAffectedChnl_H = (ucCenterChannel >= (14 - AFFECTED_CHNL_OFFSET)) ?
 213         14 : (ucCenterChannel + AFFECTED_CHNL_OFFSET);
 214
 215
 216     /* Check intolerant (Non-HT) channel list */
 217     ASSERT(prBssInfo->auc2G_NonHtChnlList[0] <= CHNL_LIST_SZ_2G);
 218     for (i = 1; i <= prBssInfo->auc2G_NonHtChnlList[0] &&
 219          i <= CHNL_LIST_SZ_2G; i++) {
 220         if ((prBssInfo->auc2G_NonHtChnlList[i] >= ucAffectedChnl_L &&
 221              prBssInfo->auc2G_NonHtChnlList[i] <= ucAffectedChnl_H) &&
 222             prBssInfo->auc2G_NonHtChnlList[i] != ucPriChannel) {
 223
 224             ucChannelLevel = CHNL_LEVEL0;
 225             goto L_2G4_level_end;
 226         }
 227     }
 228
 229     /* Check 20M BW request channel list */
 230     ASSERT(prBssInfo->auc2G_20mReqChnlList[0] <= CHNL_LIST_SZ_2G);
 231     for (i = 1; i <= prBssInfo->auc2G_20mReqChnlList[0] &&
 232          i <= CHNL_LIST_SZ_2G; i++) {
 233         if ((prBssInfo->auc2G_20mReqChnlList[i] >= ucAffectedChnl_L &&
 234              prBssInfo->auc2G_20mReqChnlList[i] <= ucAffectedChnl_H)) {
 235
 236             ucChannelLevel = CHNL_LEVEL0;
 237             goto L_2G4_level_end;
 238         }
 239     }
 240
 241     /* Check 2.4G primary channel list */
 242     ASSERT(prBssInfo->auc2G_PriChnlList[0] <= CHNL_LIST_SZ_2G);
 243     for (i = 1; i <= prBssInfo->auc2G_PriChnlList[0] &&
 244          i <= CHNL_LIST_SZ_2G; i++) {
 245         if ((prBssInfo->auc2G_PriChnlList[i] >= ucAffectedChnl_L &&
 246              prBssInfo->auc2G_PriChnlList[i] <= ucAffectedChnl_H) &&
 247             prBssInfo->auc2G_PriChnlList[i] != ucPriChannel) {
 248
 249             ucChannelLevel = CHNL_LEVEL0;
 250             goto L_2G4_level_end;
 251         }
 252     }
 253
 254     /* Check 2.4G secondary channel list */
 255     ASSERT(prBssInfo->auc2G_SecChnlList[0] <= CHNL_LIST_SZ_2G);
 256     for (i = 1; i <= prBssInfo->auc2G_SecChnlList[0] &&
 257          i <= CHNL_LIST_SZ_2G; i++) {
 258         if ((prBssInfo->auc2G_SecChnlList[i] >= ucAffectedChnl_L &&
 259              prBssInfo->auc2G_SecChnlList[i] <= ucAffectedChnl_H) &&
 260             prBssInfo->auc2G_SecChnlList[i] != ucSecChannel) {
 261
 262             ucChannelLevel = CHNL_LEVEL0;
 263             goto L_2G4_level_end;
 264         }
 265     }
 266
 267 L_2G4_level_end:
 268
 269     return ucChannelLevel;
 270 }
 271
 272 /*----------------------------------------------------------------------------*/
 273 /*!
 274 * \brief
 275 *
 276 * \param[in]
 277 *
 278 * \return none
 279 */
 280 /*----------------------------------------------------------------------------*/
 281 static UINT_8
 282 rlmObssChnlLevelIn5G (
 283     P_BSS_INFO_T        prBssInfo,
 284     UINT_8              ucPriChannel,
 285     ENUM_CHNL_EXT_T     eExtend
 286     )
 287 {
 288     UINT_8      i, ucChannelLevel;
 289     UINT_8      ucSecChannel;
 290
 291     ASSERT(prBssInfo);
 292
 293     ucChannelLevel = CHNL_LEVEL2;
 294
 295     /* Calculate center channel for 2.4G band */
 296     if (eExtend == CHNL_EXT_SCA) {
 297         ucSecChannel = ucPriChannel + 4;
 298     }
 299     else if (eExtend == CHNL_EXT_SCB) {
 300         ucSecChannel = ucPriChannel - 4;
 301     }
 302     else {
 303         return CHNL_LEVEL0;
 304     }
 305     ASSERT(ucSecChannel >= 36);
 306
 307     /* Check 5G primary channel list */
 308     ASSERT(prBssInfo->auc5G_PriChnlList[0] <= CHNL_LIST_SZ_5G);
 309     for (i = 1; i <= prBssInfo->auc5G_PriChnlList[0] &&
 310          i <= CHNL_LIST_SZ_5G; i++) {
 311         if (prBssInfo->auc5G_PriChnlList[i] == ucSecChannel) {
 312
 313             ucChannelLevel = CHNL_LEVEL0;
 314             goto L_5G_level_end;
 315         }
 316         else if (prBssInfo->auc5G_PriChnlList[i] == ucPriChannel) {
 317             ucChannelLevel = CHNL_LEVEL1;
 318         }
 319     }
 320
 321     /* Check non-HT channel list */
 322     ASSERT(prBssInfo->auc5G_NonHtChnlList[0] <= CHNL_LIST_SZ_5G);
 323     for (i = 1; i <= prBssInfo->auc5G_NonHtChnlList[0] &&
 324          i <= CHNL_LIST_SZ_5G; i++) {
 325         if (prBssInfo->auc5G_NonHtChnlList[i] == ucSecChannel) {
 326
 327             ucChannelLevel = CHNL_LEVEL0;
 328             goto L_5G_level_end;
 329         }
 330         else if (prBssInfo->auc5G_NonHtChnlList[i] == ucPriChannel) {
 331             ucChannelLevel = CHNL_LEVEL1;
 332         }
 333     }
 334
 335     /* Check secondary channel list */
 336     ASSERT(prBssInfo->auc5G_SecChnlList[0] <= CHNL_LIST_SZ_5G);
 337     for (i = 1; i <= prBssInfo->auc5G_SecChnlList[0] &&
 338          i <= CHNL_LIST_SZ_5G; i++) {
 339         if (prBssInfo->auc5G_SecChnlList[i] == ucPriChannel) {
 340
 341             ucChannelLevel = CHNL_LEVEL0;
 342             goto L_5G_level_end;
 343         }
 344     }
 345
 346 L_5G_level_end:
 347
 348     return ucChannelLevel;
 349 }
 350
 351 /*----------------------------------------------------------------------------*/
 352 /*!
 353 * \brief
 354 *
 355 * \param[in]
 356 *
 357 * \return none
 358 */
 359 /*----------------------------------------------------------------------------*/
 360 VOID
 361 rlmObssScanExemptionRsp (
 362     P_ADAPTER_T         prAdapter,
 363     P_BSS_INFO_T        prBssInfo,
 364     P_SW_RFB_T          prSwRfb
 365     )
 366 {
 367     P_MSDU_INFO_T                   prMsduInfo;
 368     P_ACTION_20_40_COEXIST_FRAME    prTxFrame;
 369
 370     /* To do: need an algorithm to do judgement. Now always reject request */
 371
 372     prMsduInfo = (P_MSDU_INFO_T)
 373                  cnmMgtPktAlloc(prAdapter, PUBLIC_ACTION_MAX_LEN);
 374     if (prMsduInfo == NULL) {
 375         return;
 376     }
 377
 378     DBGLOG(RLM, INFO, ("Send 20/40 coexistence rsp frame!\n"));
 379
 380     prTxFrame = (P_ACTION_20_40_COEXIST_FRAME) prMsduInfo->prPacket;
 381
 382     prTxFrame->u2FrameCtrl = MAC_FRAME_ACTION;
 383     COPY_MAC_ADDR(prTxFrame->aucDestAddr,
 384         ((P_ACTION_20_40_COEXIST_FRAME) prSwRfb->pvHeader)->aucSrcAddr);
 385     COPY_MAC_ADDR(prTxFrame->aucSrcAddr, prBssInfo->aucOwnMacAddr);
 386     COPY_MAC_ADDR(prTxFrame->aucBSSID, prBssInfo->aucBSSID);
 387
 388     prTxFrame->ucCategory = CATEGORY_PUBLIC_ACTION;
 389     prTxFrame->ucAction = ACTION_PUBLIC_20_40_COEXIST;
 390
 391     /* To do: find correct algorithm */
 392     prTxFrame->rBssCoexist.ucId = ELEM_ID_20_40_BSS_COEXISTENCE;
 393     prTxFrame->rBssCoexist.ucLength = 1;
 394     prTxFrame->rBssCoexist.ucData = 0;
 395
 396     ASSERT((WLAN_MAC_HEADER_LEN + 5) <= PUBLIC_ACTION_MAX_LEN);
 397
 398     prMsduInfo->ucPacketType = HIF_TX_PACKET_TYPE_MGMT;
 399     prMsduInfo->ucStaRecIndex =prSwRfb->ucStaRecIdx;
 400     prMsduInfo->ucNetworkType = prBssInfo->ucNetTypeIndex;
 401     prMsduInfo->ucMacHeaderLength = WLAN_MAC_MGMT_HEADER_LEN;
 402     prMsduInfo->fgIs802_1x = FALSE;
 403     prMsduInfo->fgIs802_11 = TRUE;
 404     prMsduInfo->u2FrameLength = WLAN_MAC_MGMT_HEADER_HTC_LEN + 5;
 405     prMsduInfo->ucTxSeqNum = nicIncreaseTxSeqNum(prAdapter);
 406     prMsduInfo->pfTxDoneHandler = NULL;
 407     prMsduInfo->fgIsBasicRate = FALSE;
 408
 409     /* Send them to HW queue */
 410     nicTxEnqueueMsdu(prAdapter, prMsduInfo);
 411 }
 412
 413
 414