git.oblomov.eu Git - linux-2.6/blob - drivers/staging/rt2860/common/cmm_sync.c

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify  *
  11  * it under the terms of the GNU General Public License as published by  *
  12  * the Free Software Foundation; either version 2 of the License, or     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************
  26
  27         Module Name:
  28         sync.c
  29
  30         Abstract:
  31
  32         Revision History:
  33         Who                     When                    What
  34         --------        ----------              ----------------------------------------------
  35         John Chang      2004-09-01      modified for rt2561/2661
  36 */
  37 #include "../rt_config.h"
  38
  39 // 2.4 Ghz channel plan index in the TxPower arrays.
  40 #define BG_BAND_REGION_0_START  0                       // 1,2,3,4,5,6,7,8,9,10,11
  41 #define BG_BAND_REGION_0_SIZE   11
  42 #define BG_BAND_REGION_1_START  0                       // 1,2,3,4,5,6,7,8,9,10,11,12,13
  43 #define BG_BAND_REGION_1_SIZE   13
  44 #define BG_BAND_REGION_2_START  9                       // 10,11
  45 #define BG_BAND_REGION_2_SIZE   2
  46 #define BG_BAND_REGION_3_START  9                       // 10,11,12,13
  47 #define BG_BAND_REGION_3_SIZE   4
  48 #define BG_BAND_REGION_4_START  13                      // 14
  49 #define BG_BAND_REGION_4_SIZE   1
  50 #define BG_BAND_REGION_5_START  0                       // 1,2,3,4,5,6,7,8,9,10,11,12,13,14
  51 #define BG_BAND_REGION_5_SIZE   14
  52 #define BG_BAND_REGION_6_START  2                       // 3,4,5,6,7,8,9
  53 #define BG_BAND_REGION_6_SIZE   7
  54 #define BG_BAND_REGION_7_START  4                       // 5,6,7,8,9,10,11,12,13
  55 #define BG_BAND_REGION_7_SIZE   9
  56 #define BG_BAND_REGION_31_START 0                       // 1,2,3,4,5,6,7,8,9,10,11,12,13,14
  57 #define BG_BAND_REGION_31_SIZE  14
  58
  59 // 5 Ghz channel plan index in the TxPower arrays.
  60 UCHAR A_BAND_REGION_0_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165};
  61 UCHAR A_BAND_REGION_1_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
  62 UCHAR A_BAND_REGION_2_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64};
  63 UCHAR A_BAND_REGION_3_CHANNEL_LIST[]={52, 56, 60, 64, 149, 153, 157, 161};
  64 UCHAR A_BAND_REGION_4_CHANNEL_LIST[]={149, 153, 157, 161, 165};
  65 UCHAR A_BAND_REGION_5_CHANNEL_LIST[]={149, 153, 157, 161};
  66 UCHAR A_BAND_REGION_6_CHANNEL_LIST[]={36, 40, 44, 48};
  67 UCHAR A_BAND_REGION_7_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161, 165};
  68 UCHAR A_BAND_REGION_8_CHANNEL_LIST[]={52, 56, 60, 64};
  69 UCHAR A_BAND_REGION_9_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 132, 136, 140, 149, 153, 157, 161, 165};
  70 UCHAR A_BAND_REGION_10_CHANNEL_LIST[]={36, 40, 44, 48, 149, 153, 157, 161, 165};
  71 UCHAR A_BAND_REGION_11_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 149, 153, 157, 161};
  72
  73 //BaSizeArray follows the 802.11n definition as MaxRxFactor.  2^(13+factor) bytes. When factor =0, it's about Ba buffer size =8.
  74 UCHAR BaSizeArray[4] = {8,16,32,64};
  75
  76 /*
  77         ==========================================================================
  78         Description:
  79                 Update StaCfg->ChannelList[] according to 1) Country Region 2) RF IC type,
  80                 and 3) PHY-mode user selected.
  81                 The outcome is used by driver when doing site survey.
  82
  83         IRQL = PASSIVE_LEVEL
  84         IRQL = DISPATCH_LEVEL
  85
  86         ==========================================================================
  87  */
  88 VOID BuildChannelList(
  89         IN PRTMP_ADAPTER pAd)
  90 {
  91         UCHAR i, j, index=0, num=0;
  92         PUCHAR  pChannelList = NULL;
  93
  94         NdisZeroMemory(pAd->ChannelList, MAX_NUM_OF_CHANNELS * sizeof(CHANNEL_TX_POWER));
  95
  96         // if not 11a-only mode, channel list starts from 2.4Ghz band
  97         if ((pAd->CommonCfg.PhyMode != PHY_11A)
  98 #ifdef DOT11_N_SUPPORT
  99                 && (pAd->CommonCfg.PhyMode != PHY_11AN_MIXED) && (pAd->CommonCfg.PhyMode != PHY_11N_5G)
 100 #endif // DOT11_N_SUPPORT //
 101         )
 102         {
 103                 switch (pAd->CommonCfg.CountryRegion  & 0x7f)
 104                 {
 105                         case REGION_0_BG_BAND:  // 1 -11
 106                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_0_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_0_SIZE);
 107                                 index += BG_BAND_REGION_0_SIZE;
 108                                 break;
 109                         case REGION_1_BG_BAND:  // 1 - 13
 110                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_1_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_1_SIZE);
 111                                 index += BG_BAND_REGION_1_SIZE;
 112                                 break;
 113                         case REGION_2_BG_BAND:  // 10 - 11
 114                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_2_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_2_SIZE);
 115                                 index += BG_BAND_REGION_2_SIZE;
 116                                 break;
 117                         case REGION_3_BG_BAND:  // 10 - 13
 118                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_3_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_3_SIZE);
 119                                 index += BG_BAND_REGION_3_SIZE;
 120                                 break;
 121                         case REGION_4_BG_BAND:  // 14
 122                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_4_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_4_SIZE);
 123                                 index += BG_BAND_REGION_4_SIZE;
 124                                 break;
 125                         case REGION_5_BG_BAND:  // 1 - 14
 126                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_5_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_5_SIZE);
 127                                 index += BG_BAND_REGION_5_SIZE;
 128                                 break;
 129                         case REGION_6_BG_BAND:  // 3 - 9
 130                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_6_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_6_SIZE);
 131                                 index += BG_BAND_REGION_6_SIZE;
 132                                 break;
 133                         case REGION_7_BG_BAND:  // 5 - 13
 134                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_7_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_7_SIZE);
 135                                 index += BG_BAND_REGION_7_SIZE;
 136                                 break;
 137                         case REGION_31_BG_BAND: // 1 - 14
 138                                 NdisMoveMemory(&pAd->ChannelList[index], &pAd->TxPower[BG_BAND_REGION_31_START], sizeof(CHANNEL_TX_POWER) * BG_BAND_REGION_31_SIZE);
 139                                 index += BG_BAND_REGION_31_SIZE;
 140                                 break;
 141                         default:            // Error. should never happen
 142                                 break;
 143                 }
 144                 for (i=0; i<index; i++)
 145                         pAd->ChannelList[i].MaxTxPwr = 20;
 146         }
 147
 148         if ((pAd->CommonCfg.PhyMode == PHY_11A) || (pAd->CommonCfg.PhyMode == PHY_11ABG_MIXED)
 149 #ifdef DOT11_N_SUPPORT
 150                 || (pAd->CommonCfg.PhyMode == PHY_11ABGN_MIXED) || (pAd->CommonCfg.PhyMode == PHY_11AN_MIXED)
 151                 || (pAd->CommonCfg.PhyMode == PHY_11AGN_MIXED) || (pAd->CommonCfg.PhyMode == PHY_11N_5G)
 152 #endif // DOT11_N_SUPPORT //
 153         )
 154         {
 155                 switch (pAd->CommonCfg.CountryRegionForABand & 0x7f)
 156                 {
 157                         case REGION_0_A_BAND:
 158                                 num = sizeof(A_BAND_REGION_0_CHANNEL_LIST)/sizeof(UCHAR);
 159                                 pChannelList = A_BAND_REGION_0_CHANNEL_LIST;
 160                                 break;
 161                         case REGION_1_A_BAND:
 162                                 num = sizeof(A_BAND_REGION_1_CHANNEL_LIST)/sizeof(UCHAR);
 163                                 pChannelList = A_BAND_REGION_1_CHANNEL_LIST;
 164                                 break;
 165                         case REGION_2_A_BAND:
 166                                 num = sizeof(A_BAND_REGION_2_CHANNEL_LIST)/sizeof(UCHAR);
 167                                 pChannelList = A_BAND_REGION_2_CHANNEL_LIST;
 168                                 break;
 169                         case REGION_3_A_BAND:
 170                                 num = sizeof(A_BAND_REGION_3_CHANNEL_LIST)/sizeof(UCHAR);
 171                                 pChannelList = A_BAND_REGION_3_CHANNEL_LIST;
 172                                 break;
 173                         case REGION_4_A_BAND:
 174                                 num = sizeof(A_BAND_REGION_4_CHANNEL_LIST)/sizeof(UCHAR);
 175                                 pChannelList = A_BAND_REGION_4_CHANNEL_LIST;
 176                                 break;
 177                         case REGION_5_A_BAND:
 178                                 num = sizeof(A_BAND_REGION_5_CHANNEL_LIST)/sizeof(UCHAR);
 179                                 pChannelList = A_BAND_REGION_5_CHANNEL_LIST;
 180                                 break;
 181                         case REGION_6_A_BAND:
 182                                 num = sizeof(A_BAND_REGION_6_CHANNEL_LIST)/sizeof(UCHAR);
 183                                 pChannelList = A_BAND_REGION_6_CHANNEL_LIST;
 184                                 break;
 185                         case REGION_7_A_BAND:
 186                                 num = sizeof(A_BAND_REGION_7_CHANNEL_LIST)/sizeof(UCHAR);
 187                                 pChannelList = A_BAND_REGION_7_CHANNEL_LIST;
 188                                 break;
 189                         case REGION_8_A_BAND:
 190                                 num = sizeof(A_BAND_REGION_8_CHANNEL_LIST)/sizeof(UCHAR);
 191                                 pChannelList = A_BAND_REGION_8_CHANNEL_LIST;
 192                                 break;
 193                         case REGION_9_A_BAND:
 194                                 num = sizeof(A_BAND_REGION_9_CHANNEL_LIST)/sizeof(UCHAR);
 195                                 pChannelList = A_BAND_REGION_9_CHANNEL_LIST;
 196                                 break;
 197
 198                         case REGION_10_A_BAND:
 199                                 num = sizeof(A_BAND_REGION_10_CHANNEL_LIST)/sizeof(UCHAR);
 200                                 pChannelList = A_BAND_REGION_10_CHANNEL_LIST;
 201                                 break;
 202
 203                         case REGION_11_A_BAND:
 204                                 num = sizeof(A_BAND_REGION_11_CHANNEL_LIST)/sizeof(UCHAR);
 205                                 pChannelList = A_BAND_REGION_11_CHANNEL_LIST;
 206                                 break;
 207
 208                         default:            // Error. should never happen
 209                                 DBGPRINT(RT_DEBUG_WARN,("countryregion=%d not support", pAd->CommonCfg.CountryRegionForABand));
 210                                 break;
 211                 }
 212
 213                 if (num != 0)
 214                 {
 215                         UCHAR RadarCh[15]={52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
 216                         for (i=0; i<num; i++)
 217                         {
 218                                 for (j=0; j<MAX_NUM_OF_CHANNELS; j++)
 219                                 {
 220                                         if (pChannelList[i] == pAd->TxPower[j].Channel)
 221                                                 NdisMoveMemory(&pAd->ChannelList[index+i], &pAd->TxPower[j], sizeof(CHANNEL_TX_POWER));
 222                                         }
 223                                 for (j=0; j<15; j++)
 224                                 {
 225                                         if (pChannelList[i] == RadarCh[j])
 226                                                 pAd->ChannelList[index+i].DfsReq = TRUE;
 227                                 }
 228                                 pAd->ChannelList[index+i].MaxTxPwr = 20;
 229                         }
 230                         index += num;
 231                 }
 232         }
 233
 234         pAd->ChannelListNum = index;
 235         DBGPRINT(RT_DEBUG_TRACE,("country code=%d/%d, RFIC=%d, PHY mode=%d, support %d channels\n",
 236                 pAd->CommonCfg.CountryRegion, pAd->CommonCfg.CountryRegionForABand, pAd->RfIcType, pAd->CommonCfg.PhyMode, pAd->ChannelListNum));
 237 #ifdef DBG
 238         for (i=0;i<pAd->ChannelListNum;i++)
 239         {
 240                 DBGPRINT_RAW(RT_DEBUG_TRACE,("BuildChannel # %d :: Pwr0 = %d, Pwr1 =%d, \n ", pAd->ChannelList[i].Channel, pAd->ChannelList[i].Power, pAd->ChannelList[i].Power2));
 241         }
 242 #endif
 243 }
 244
 245 /*
 246         ==========================================================================
 247         Description:
 248                 This routine return the first channel number according to the country
 249                 code selection and RF IC selection (signal band or dual band). It is called
 250                 whenever driver need to start a site survey of all supported channels.
 251         Return:
 252                 ch - the first channel number of current country code setting
 253
 254         IRQL = PASSIVE_LEVEL
 255
 256         ==========================================================================
 257  */
 258 UCHAR FirstChannel(
 259         IN PRTMP_ADAPTER pAd)
 260 {
 261         return pAd->ChannelList[0].Channel;
 262 }
 263
 264 /*
 265         ==========================================================================
 266         Description:
 267                 This routine returns the next channel number. This routine is called
 268                 during driver need to start a site survey of all supported channels.
 269         Return:
 270                 next_channel - the next channel number valid in current country code setting.
 271         Note:
 272                 return 0 if no more next channel
 273         ==========================================================================
 274  */
 275 UCHAR NextChannel(
 276         IN PRTMP_ADAPTER pAd,
 277         IN UCHAR channel)
 278 {
 279         int i;
 280         UCHAR next_channel = 0;
 281
 282         for (i = 0; i < (pAd->ChannelListNum - 1); i++)
 283                 if (channel == pAd->ChannelList[i].Channel)
 284                 {
 285                         next_channel = pAd->ChannelList[i+1].Channel;
 286                         break;
 287         }
 288         return next_channel;
 289 }
 290
 291 /*
 292         ==========================================================================
 293         Description:
 294                 This routine is for Cisco Compatible Extensions 2.X
 295                 Spec31. AP Control of Client Transmit Power
 296         Return:
 297                 None
 298         Note:
 299            Required by Aironet dBm(mW)
 300                    0dBm(1mW),   1dBm(5mW), 13dBm(20mW), 15dBm(30mW),
 301                   17dBm(50mw), 20dBm(100mW)
 302
 303            We supported
 304                    3dBm(Lowest), 6dBm(10%), 9dBm(25%), 12dBm(50%),
 305                   14dBm(75%),   15dBm(100%)
 306
 307                 The client station's actual transmit power shall be within +/- 5dB of
 308                 the minimum value or next lower value.
 309         ==========================================================================
 310  */
 311 VOID ChangeToCellPowerLimit(
 312         IN PRTMP_ADAPTER pAd,
 313         IN UCHAR         AironetCellPowerLimit)
 314 {
 315         //valud 0xFF means that hasn't found power limit information
 316         //from the AP's Beacon/Probe response.
 317         if (AironetCellPowerLimit == 0xFF)
 318                 return;
 319
 320         if (AironetCellPowerLimit < 6) //Used Lowest Power Percentage.
 321                 pAd->CommonCfg.TxPowerPercentage = 6;
 322         else if (AironetCellPowerLimit < 9)
 323                 pAd->CommonCfg.TxPowerPercentage = 10;
 324         else if (AironetCellPowerLimit < 12)
 325                 pAd->CommonCfg.TxPowerPercentage = 25;
 326         else if (AironetCellPowerLimit < 14)
 327                 pAd->CommonCfg.TxPowerPercentage = 50;
 328         else if (AironetCellPowerLimit < 15)
 329                 pAd->CommonCfg.TxPowerPercentage = 75;
 330         else
 331                 pAd->CommonCfg.TxPowerPercentage = 100; //else used maximum
 332
 333         if (pAd->CommonCfg.TxPowerPercentage > pAd->CommonCfg.TxPowerDefault)
 334                 pAd->CommonCfg.TxPowerPercentage = pAd->CommonCfg.TxPowerDefault;
 335
 336 }
 337
 338 CHAR    ConvertToRssi(
 339         IN PRTMP_ADAPTER pAd,
 340         IN      CHAR                    Rssi,
 341         IN  UCHAR   RssiNumber)
 342 {
 343         UCHAR   RssiOffset, LNAGain;
 344
 345         // Rssi equals to zero should be an invalid value
 346         if (Rssi == 0)
 347                 return -99;
 348
 349         LNAGain = GET_LNA_GAIN(pAd);
 350     if (pAd->LatchRfRegs.Channel > 14)
 351     {
 352         if (RssiNumber == 0)
 353                         RssiOffset = pAd->ARssiOffset0;
 354                 else if (RssiNumber == 1)
 355                         RssiOffset = pAd->ARssiOffset1;
 356                 else
 357                         RssiOffset = pAd->ARssiOffset2;
 358     }
 359     else
 360     {
 361         if (RssiNumber == 0)
 362                         RssiOffset = pAd->BGRssiOffset0;
 363                 else if (RssiNumber == 1)
 364                         RssiOffset = pAd->BGRssiOffset1;
 365                 else
 366                         RssiOffset = pAd->BGRssiOffset2;
 367     }
 368
 369     return (-12 - RssiOffset - LNAGain - Rssi);
 370 }
 371
 372 /*
 373         ==========================================================================
 374         Description:
 375                 Scan next channel
 376         ==========================================================================
 377  */
 378 VOID ScanNextChannel(
 379         IN PRTMP_ADAPTER pAd)
 380 {
 381         HEADER_802_11   Hdr80211;
 382         PUCHAR          pOutBuffer = NULL;
 383         NDIS_STATUS     NStatus;
 384         ULONG           FrameLen = 0;
 385         UCHAR           SsidLen = 0, ScanType = pAd->MlmeAux.ScanType, BBPValue = 0;
 386         USHORT          Status;
 387         PHEADER_802_11  pHdr80211;
 388         UINT                    ScanTimeIn5gChannel = SHORT_CHANNEL_TIME;
 389
 390         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 391         {
 392                 if (MONITOR_ON(pAd))
 393                         return;
 394         }
 395
 396         if (pAd->MlmeAux.Channel == 0)
 397         {
 398                 if ((pAd->CommonCfg.BBPCurrentBW == BW_40)
 399                         && (INFRA_ON(pAd)
 400                                 || (pAd->OpMode == OPMODE_AP))
 401                         )
 402                 {
 403                         AsicSwitchChannel(pAd, pAd->CommonCfg.CentralChannel, FALSE);
 404                         AsicLockChannel(pAd, pAd->CommonCfg.CentralChannel);
 405                         RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
 406                         BBPValue &= (~0x18);
 407                         BBPValue |= 0x10;
 408                         RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
 409                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - End of SCAN, restore to 40MHz channel %d, Total BSS[%02d]\n",pAd->CommonCfg.CentralChannel, pAd->ScanTab.BssNr));
 410                 }
 411                 else
 412                 {
 413                         AsicSwitchChannel(pAd, pAd->CommonCfg.Channel, FALSE);
 414                         AsicLockChannel(pAd, pAd->CommonCfg.Channel);
 415                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - End of SCAN, restore to channel %d, Total BSS[%02d]\n",pAd->CommonCfg.Channel, pAd->ScanTab.BssNr));
 416                 }
 417
 418                 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 419                 {
 420                         //
 421                         // To prevent data lost.
 422                         // Send an NULL data with turned PSM bit on to current associated AP before SCAN progress.
 423                         // Now, we need to send an NULL data with turned PSM bit off to AP, when scan progress done
 424                         //
 425                         if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED) && (INFRA_ON(pAd)))
 426                         {
 427                                 NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer);
 428                                 if (NStatus     == NDIS_STATUS_SUCCESS)
 429                                 {
 430                                         pHdr80211 = (PHEADER_802_11) pOutBuffer;
 431                                         MgtMacHeaderInit(pAd, pHdr80211, SUBTYPE_NULL_FUNC, 1, pAd->CommonCfg.Bssid, pAd->CommonCfg.Bssid);
 432                                         pHdr80211->Duration = 0;
 433                                         pHdr80211->FC.Type = BTYPE_DATA;
 434                                         pHdr80211->FC.PwrMgmt = (pAd->StaCfg.Psm == PWR_SAVE);
 435
 436                                         // Send using priority queue
 437                                         MiniportMMRequest(pAd, 0, pOutBuffer, sizeof(HEADER_802_11));
 438                                         DBGPRINT(RT_DEBUG_TRACE, ("MlmeScanReqAction -- Send PSM Data frame\n"));
 439                                         MlmeFreeMemory(pAd, pOutBuffer);
 440                                         RTMPusecDelay(5000);
 441                                 }
 442                         }
 443
 444                         pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
 445                         Status = MLME_SUCCESS;
 446                         MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
 447                 }
 448
 449                 RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_BSS_SCAN_IN_PROGRESS);
 450         }
 451         else
 452         {
 453                 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 454                 {
 455                 // BBP and RF are not accessible in PS mode, we has to wake them up first
 456                 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE))
 457                                 AsicForceWakeup(pAd, FROM_TX);
 458
 459                         // leave PSM during scanning. otherwise we may lost ProbeRsp & BEACON
 460                         if (pAd->StaCfg.Psm == PWR_SAVE)
 461                                 MlmeSetPsmBit(pAd, PWR_ACTIVE);
 462                 }
 463
 464                 AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, TRUE);
 465                 AsicLockChannel(pAd, pAd->MlmeAux.Channel);
 466
 467                 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 468                 {
 469                         if (pAd->MlmeAux.Channel > 14)
 470                         {
 471                                 if ((pAd->CommonCfg.bIEEE80211H == 1) && RadarChannelCheck(pAd, pAd->MlmeAux.Channel))
 472                                 {
 473                                         ScanType = SCAN_PASSIVE;
 474                                         ScanTimeIn5gChannel = MIN_CHANNEL_TIME;
 475                                 }
 476                         }
 477                 }
 478
 479                 //Global country domain(ch1-11:active scan, ch12-14 passive scan)
 480                 if ((pAd->MlmeAux.Channel <= 14) && (pAd->MlmeAux.Channel >= 12) && ((pAd->CommonCfg.CountryRegion & 0x7f) == REGION_31_BG_BAND))
 481                 {
 482                         ScanType = SCAN_PASSIVE;
 483                 }
 484
 485                 // We need to shorten active scan time in order for WZC connect issue
 486                 // Chnage the channel scan time for CISCO stuff based on its IAPP announcement
 487                 if (ScanType == FAST_SCAN_ACTIVE)
 488                         RTMPSetTimer(&pAd->MlmeAux.ScanTimer, FAST_ACTIVE_SCAN_TIME);
 489                 else if (((ScanType == SCAN_CISCO_ACTIVE) ||
 490                                 (ScanType == SCAN_CISCO_PASSIVE) ||
 491                                 (ScanType == SCAN_CISCO_CHANNEL_LOAD) ||
 492                                 (ScanType == SCAN_CISCO_NOISE)) && (pAd->OpMode == OPMODE_STA))
 493                 {
 494                         if (pAd->StaCfg.CCXScanTime < 25)
 495                                 RTMPSetTimer(&pAd->MlmeAux.ScanTimer, pAd->StaCfg.CCXScanTime * 2);
 496                         else
 497                                 RTMPSetTimer(&pAd->MlmeAux.ScanTimer, pAd->StaCfg.CCXScanTime);
 498                 }
 499                 else // must be SCAN_PASSIVE or SCAN_ACTIVE
 500                 {
 501                         if ((pAd->CommonCfg.PhyMode == PHY_11ABG_MIXED)
 502 #ifdef DOT11_N_SUPPORT
 503                                 || (pAd->CommonCfg.PhyMode == PHY_11ABGN_MIXED) || (pAd->CommonCfg.PhyMode == PHY_11AGN_MIXED)
 504 #endif // DOT11_N_SUPPORT //
 505                         )
 506                         {
 507                                 if (pAd->MlmeAux.Channel > 14)
 508                                         RTMPSetTimer(&pAd->MlmeAux.ScanTimer, ScanTimeIn5gChannel);
 509                                 else
 510                                 RTMPSetTimer(&pAd->MlmeAux.ScanTimer, MIN_CHANNEL_TIME);
 511                         }
 512                         else
 513                                 RTMPSetTimer(&pAd->MlmeAux.ScanTimer, MAX_CHANNEL_TIME);
 514                 }
 515
 516                 if ((ScanType == SCAN_ACTIVE) || (ScanType == FAST_SCAN_ACTIVE) ||
 517                         (ScanType == SCAN_CISCO_ACTIVE))
 518                 {
 519                         NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);  //Get an unused nonpaged memory
 520                         if (NStatus != NDIS_STATUS_SUCCESS)
 521                         {
 522                                 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - ScanNextChannel() allocate memory fail\n"));
 523
 524                                 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 525                                 {
 526                                         pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
 527                                         Status = MLME_FAIL_NO_RESOURCE;
 528                                         MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
 529                                 }
 530
 531                                 return;
 532                         }
 533
 534                         // There is no need to send broadcast probe request if active scan is in effect.
 535                         if ((ScanType == SCAN_ACTIVE) || (ScanType == FAST_SCAN_ACTIVE)
 536                                 )
 537                                 SsidLen = pAd->MlmeAux.SsidLen;
 538                         else
 539                                 SsidLen = 0;
 540
 541                         MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0, BROADCAST_ADDR, BROADCAST_ADDR);
 542                         MakeOutgoingFrame(pOutBuffer,               &FrameLen,
 543                                                           sizeof(HEADER_802_11),    &Hdr80211,
 544                                                           1,                        &SsidIe,
 545                                                           1,                        &SsidLen,
 546                                                           SsidLen,                              pAd->MlmeAux.Ssid,
 547                                                           1,                        &SupRateIe,
 548                                                           1,                        &pAd->CommonCfg.SupRateLen,
 549                                                           pAd->CommonCfg.SupRateLen,  pAd->CommonCfg.SupRate,
 550                                                           END_OF_ARGS);
 551
 552                         if (pAd->CommonCfg.ExtRateLen)
 553                         {
 554                                 ULONG Tmp;
 555                                 MakeOutgoingFrame(pOutBuffer + FrameLen,            &Tmp,
 556                                                                   1,                                &ExtRateIe,
 557                                                                   1,                                &pAd->CommonCfg.ExtRateLen,
 558                                                                   pAd->CommonCfg.ExtRateLen,          pAd->CommonCfg.ExtRate,
 559                                                                   END_OF_ARGS);
 560                                 FrameLen += Tmp;
 561                         }
 562
 563 #ifdef DOT11_N_SUPPORT
 564                         if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
 565                         {
 566                                 ULONG   Tmp;
 567                                 UCHAR   HtLen;
 568                                 UCHAR   BROADCOM[4] = {0x0, 0x90, 0x4c, 0x33};
 569
 570                                 if (pAd->bBroadComHT == TRUE)
 571                                 {
 572                                         HtLen = pAd->MlmeAux.HtCapabilityLen + 4;
 573
 574                                         MakeOutgoingFrame(pOutBuffer + FrameLen,          &Tmp,
 575                                                                         1,                                &WpaIe,
 576                                                                         1,                                &HtLen,
 577                                                                         4,                                &BROADCOM[0],
 578                                                                         pAd->MlmeAux.HtCapabilityLen,     &pAd->MlmeAux.HtCapability,
 579                                                                         END_OF_ARGS);
 580                                 }
 581                                 else
 582                                 {
 583                                         HtLen = pAd->MlmeAux.HtCapabilityLen;
 584
 585                                         MakeOutgoingFrame(pOutBuffer + FrameLen,          &Tmp,
 586                                                                         1,                                &HtCapIe,
 587                                                                         1,                                &HtLen,
 588                                                                         HtLen,                            &pAd->CommonCfg.HtCapability,
 589                                                                         END_OF_ARGS);
 590                                 }
 591                                 FrameLen += Tmp;
 592                         }
 593 #endif // DOT11_N_SUPPORT //
 594
 595
 596                         MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
 597                         MlmeFreeMemory(pAd, pOutBuffer);
 598                 }
 599
 600                 // For SCAN_CISCO_PASSIVE, do nothing and silently wait for beacon or other probe reponse
 601
 602                 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 603                         pAd->Mlme.SyncMachine.CurrState = SCAN_LISTEN;
 604         }
 605 }
 606
 607 VOID MgtProbReqMacHeaderInit(
 608         IN      PRTMP_ADAPTER   pAd,
 609         IN OUT PHEADER_802_11 pHdr80211,
 610         IN UCHAR SubType,
 611         IN UCHAR ToDs,
 612         IN PUCHAR pDA,
 613         IN PUCHAR pBssid)
 614 {
 615         NdisZeroMemory(pHdr80211, sizeof(HEADER_802_11));
 616
 617         pHdr80211->FC.Type = BTYPE_MGMT;
 618         pHdr80211->FC.SubType = SubType;
 619         if (SubType == SUBTYPE_ACK)
 620                 pHdr80211->FC.Type = BTYPE_CNTL;
 621         pHdr80211->FC.ToDs = ToDs;
 622         COPY_MAC_ADDR(pHdr80211->Addr1, pDA);
 623         COPY_MAC_ADDR(pHdr80211->Addr2, pAd->CurrentAddress);
 624         COPY_MAC_ADDR(pHdr80211->Addr3, pBssid);
 625 }
 626
 627