drivers/staging/winbond/mto.c

   1 //============================================================================
   2 //  MTO.C -
   3 //
   4 //  Description:
   5 //    MAC Throughput Optimization for W89C33 802.11g WLAN STA.
   6 //
   7 //    The following MIB attributes or internal variables will be affected
   8 //    while the MTO is being executed:
   9 //       dot11FragmentationThreshold,
  10 //       dot11RTSThreshold,
  11 //       transmission rate and PLCP preamble type,
  12 //       CCA mode,
  13 //       antenna diversity.
  14 //
  15 //  Revision history:
  16 //  --------------------------------------------------------------------------
  17 //           20031227  UN20 Pete Chao
  18 //                     First draft
  19 //  20031229           Turbo                copy from PD43
  20 //  20040210           Kevin                revised
  21 //  Copyright (c) 2003 Winbond Electronics Corp. All rights reserved.
  22 //============================================================================
  23
  24 // LA20040210_DTO kevin
  25 #include "sysdef.h"
  26 #include "sme_api.h"
  27 #include "wbhal_f.h"
  28
  29 // Declare SQ3 to rate and fragmentation threshold table
  30 // Declare fragmentation thresholds table
  31 #define MTO_MAX_FRAG_TH_LEVELS                  5
  32 #define MTO_MAX_DATA_RATE_LEVELS                12
  33
  34 u16 MTO_Frag_Th_Tbl[MTO_MAX_FRAG_TH_LEVELS] =
  35 {
  36     256, 384, 512, 768, 1536
  37 };
  38
  39 // Declare data rate table
  40 //The following table will be changed at anytime if the opration rate supported by AP don't
  41 //match the table
  42 static u8 MTO_Data_Rate_Tbl[MTO_MAX_DATA_RATE_LEVELS] = {
  43     2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108
  44 };
  45
  46 static int TotalTxPkt = 0;
  47 static int TotalTxPktRetry = 0;
  48 static int retryrate_rec[MTO_MAX_DATA_RATE_LEVELS];//this record the retry rate at different data rate
  49
  50 static int PeriodTotalTxPkt = 0;
  51 static int PeriodTotalTxPktRetry = 0;
  52
  53 static u8 boSparseTxTraffic = false;
  54
  55 void MTO_Init(struct wbsoft_priv *adapter);
  56 void TxRateReductionCtrl(struct wbsoft_priv *adapter);
  57 /** 1.1.31.1000 Turbo modify */
  58 void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 t0, u8 index);
  59 void MTO_TxFailed(struct wbsoft_priv *adapter);
  60 void hal_get_dto_para(struct wbsoft_priv *adapter, char *buffer);
  61
  62 //===========================================================================
  63 //  MTO_Init --
  64 //
  65 //  Description:
  66 //    Initialize MTO parameters.
  67 //
  68 //    This function should be invoked during system initialization.
  69 //
  70 //  Arguments:
  71 //    adapter      - The pointer to the Miniport adapter Context
  72 //
  73 //  Return Value:
  74 //    None
  75 //============================================================================
  76 void MTO_Init(struct wbsoft_priv *adapter)
  77 {
  78     int i;
  79         //[WKCHEN]pMTOcore_data = pcore_data;
  80 // 20040510 Turbo add for global variable
  81     MTO_TMR_CNT()       = 0;
  82     MTO_TOGGLE_STATE()  = TOGGLE_STATE_IDLE;
  83     MTO_TX_RATE_REDUCTION_STATE() = RATE_CHGSTATE_IDLE;
  84     MTO_BACKOFF_TMR()   = 0;
  85     MTO_LAST_RATE()     = 11;
  86     MTO_CO_EFFICENT()   = 0;
  87
  88     //MTO_TH_FIXANT()     = MTO_DEFAULT_TH_FIXANT;
  89     MTO_TH_CNT()        = MTO_DEFAULT_TH_CNT;
  90     MTO_TH_SQ3()        = MTO_DEFAULT_TH_SQ3;
  91     MTO_TH_IDLE_SLOT()  = MTO_DEFAULT_TH_IDLE_SLOT;
  92     MTO_TH_PR_INTERF()  = MTO_DEFAULT_TH_PR_INTERF;
  93
  94     MTO_TMR_AGING()     = MTO_DEFAULT_TMR_AGING;
  95     MTO_TMR_PERIODIC()  = MTO_DEFAULT_TMR_PERIODIC;
  96
  97     //[WKCHEN]MTO_CCA_MODE_SETUP()= (u8) hal_get_cca_mode(MTO_HAL());
  98     //[WKCHEN]MTO_CCA_MODE()      = MTO_CCA_MODE_SETUP();
  99
 100     //MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_LONG;
 101     MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_SHORT;   // for test
 102
 103     MTO_ANT_SEL()       = hal_get_antenna_number(MTO_HAL());
 104     MTO_ANT_MAC()       = MTO_ANT_SEL();
 105     MTO_CNT_ANT(0)      = 0;
 106     MTO_CNT_ANT(1)      = 0;
 107     MTO_SQ_ANT(0)       = 0;
 108     MTO_SQ_ANT(1)       = 0;
 109     MTO_ANT_DIVERSITY() = MTO_ANTENNA_DIVERSITY_ON;
 110     //CardSet_AntennaDiversity(adapter, MTO_ANT_DIVERSITY());
 111     //PLMESetAntennaDiversity( adapter, MTO_ANT_DIVERSITY());
 112
 113     MTO_AGING_TIMEOUT() = 0;//MTO_TMR_AGING() / MTO_TMR_PERIODIC();
 114
 115     // The following parameters should be initialized to the values set by user
 116     //
 117     //MTO_RATE_LEVEL()            = 10;
 118     MTO_RATE_LEVEL()            = 0;
 119     MTO_FRAG_TH_LEVEL()         = 4;
 120     /** 1.1.23.1000 Turbo modify from -1 to +1
 121         MTO_RTS_THRESHOLD()         = MTO_FRAG_TH() - 1;
 122     MTO_RTS_THRESHOLD_SETUP()   = MTO_FRAG_TH() - 1;
 123         */
 124         MTO_RTS_THRESHOLD()         = MTO_FRAG_TH() + 1;
 125     MTO_RTS_THRESHOLD_SETUP()   = MTO_FRAG_TH() + 1;
 126     // 1.1.23.1000 Turbo add for mto change preamble from 0 to 1
 127         MTO_RATE_CHANGE_ENABLE()    = 1;
 128     MTO_FRAG_CHANGE_ENABLE()    = 0;          // 1.1.29.1000 Turbo add don't support frag
 129         //The default valud of ANTDIV_DEFAULT_ON will be decided by EEPROM
 130         //#ifdef ANTDIV_DEFAULT_ON
 131     //MTO_ANT_DIVERSITY_ENABLE()  = 1;
 132         //#else
 133     //MTO_ANT_DIVERSITY_ENABLE()  = 0;
 134         //#endif
 135     MTO_POWER_CHANGE_ENABLE()   = 1;
 136         MTO_PREAMBLE_CHANGE_ENABLE()= 1;
 137     MTO_RTS_CHANGE_ENABLE()     = 0;          // 1.1.29.1000 Turbo add don't support frag
 138     // 20040512 Turbo add
 139         //old_antenna[0] = 1;
 140         //old_antenna[1] = 0;
 141         //old_antenna[2] = 1;
 142         //old_antenna[3] = 0;
 143         for (i=0;i<MTO_MAX_DATA_RATE_LEVELS;i++)
 144                 retryrate_rec[i]=5;
 145
 146         MTO_TXFLOWCOUNT() = 0;
 147         //--------- DTO threshold parameters -------------
 148         //MTOPARA_PERIODIC_CHECK_CYCLE() = 50;
 149         MTOPARA_PERIODIC_CHECK_CYCLE() = 10;
 150         MTOPARA_RSSI_TH_FOR_ANTDIV() = 10;
 151         MTOPARA_TXCOUNT_TH_FOR_CALC_RATE() = 50;
 152         MTOPARA_TXRATE_INC_TH() = 10;
 153         MTOPARA_TXRATE_DEC_TH() = 30;
 154         MTOPARA_TXRATE_EQ_TH() = 40;
 155         MTOPARA_TXRATE_BACKOFF() = 12;
 156         MTOPARA_TXRETRYRATE_REDUCE() = 6;
 157         if ( MTO_TXPOWER_FROM_EEPROM == 0xff)
 158         {
 159                 switch( MTO_HAL()->phy_type)
 160                 {
 161                         case RF_AIROHA_2230:
 162                         case RF_AIROHA_2230S: // 20060420 Add this
 163                                 MTOPARA_TXPOWER_INDEX() = 46; // MAX-8 // @@ Only for AL 2230
 164                                 break;
 165                         case RF_AIROHA_7230:
 166                                 MTOPARA_TXPOWER_INDEX() = 49;
 167                                 break;
 168                         case RF_WB_242:
 169                                 MTOPARA_TXPOWER_INDEX() = 10;
 170                                 break;
 171                         case RF_WB_242_1:
 172                                 MTOPARA_TXPOWER_INDEX() = 24; // ->10 20060316.1 modify
 173                                 break;
 174                 }
 175         }
 176         else    //follow the setting from EEPROM
 177                 MTOPARA_TXPOWER_INDEX() = MTO_TXPOWER_FROM_EEPROM;
 178         RFSynthesizer_SetPowerIndex(MTO_HAL(), (u8)MTOPARA_TXPOWER_INDEX());
 179         //------------------------------------------------
 180
 181         // For RSSI turning 20060808.4 Cancel load from EEPROM
 182         MTO_DATA().RSSI_high = -41;
 183         MTO_DATA().RSSI_low = -60;
 184 }
 185
 186 //===========================================================================
 187 //  Description:
 188 //      If we enable DTO, we will ignore the tx count with different tx rate from
 189 //      DTO rate. This is because when we adjust DTO tx rate, there could be some
 190 //      packets in the tx queue with previous tx rate
 191 void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 tx_rate, u8 index)
 192 {
 193         MTO_TXFLOWCOUNT()++;
 194         if ((MTO_ENABLE==1) && (MTO_RATE_CHANGE_ENABLE()==1))
 195         {
 196                 if(tx_rate == MTO_DATA_RATE())
 197                 {
 198                         if (index == 0)
 199                         {
 200                                 if (boSparseTxTraffic)
 201                                         MTO_HAL()->dto_tx_frag_count += MTOPARA_PERIODIC_CHECK_CYCLE();
 202                                 else
 203                                         MTO_HAL()->dto_tx_frag_count += 1;
 204                         }
 205                         else
 206                         {
 207                                 if (index<8)
 208                                 {
 209                                         MTO_HAL()->dto_tx_retry_count += index;
 210                                         MTO_HAL()->dto_tx_frag_count += (index+1);
 211                                 }
 212                                 else
 213                                 {
 214                                         MTO_HAL()->dto_tx_retry_count += 7;
 215                                         MTO_HAL()->dto_tx_frag_count += 7;
 216                                 }
 217                         }
 218                 }
 219                 else if(MTO_DATA_RATE()>48 && tx_rate ==48)
 220                 {//ALFRED
 221                         if (index<3) //for reduciing data rate scheme ,
 222                                          //do not calcu different data rate
 223                                                  //3 is the reducing data rate at retry
 224                         {
 225                                 MTO_HAL()->dto_tx_retry_count += index;
 226                                 MTO_HAL()->dto_tx_frag_count += (index+1);
 227                         }
 228                         else
 229                         {
 230                                 MTO_HAL()->dto_tx_retry_count += 3;
 231                                 MTO_HAL()->dto_tx_frag_count += 3;
 232                         }
 233
 234                 }
 235         }
 236         else
 237         {
 238                 MTO_HAL()->dto_tx_retry_count += index;
 239                 MTO_HAL()->dto_tx_frag_count += (index+1);
 240         }
 241         TotalTxPkt ++;
 242         TotalTxPktRetry += (index+1);
 243
 244         PeriodTotalTxPkt ++;
 245         PeriodTotalTxPktRetry += (index+1);
 246 }