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 "gl_80211.h"
  28 #include "wbhal_f.h"
  29
  30 // Declare SQ3 to rate and fragmentation threshold table
  31 // Declare fragmentation thresholds table
  32 #define MTO_MAX_FRAG_TH_LEVELS                  5
  33 #define MTO_MAX_DATA_RATE_LEVELS                12
  34
  35 u16 MTO_Frag_Th_Tbl[MTO_MAX_FRAG_TH_LEVELS] =
  36 {
  37     256, 384, 512, 768, 1536
  38 };
  39
  40 // Declare data rate table
  41 //The following table will be changed at anytime if the opration rate supported by AP don't
  42 //match the table
  43 static u8 MTO_Data_Rate_Tbl[MTO_MAX_DATA_RATE_LEVELS] = {
  44     2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108
  45 };
  46
  47 static int TotalTxPkt = 0;
  48 static int TotalTxPktRetry = 0;
  49 static int retryrate_rec[MTO_MAX_DATA_RATE_LEVELS];//this record the retry rate at different data rate
  50
  51 static int PeriodTotalTxPkt = 0;
  52 static int PeriodTotalTxPktRetry = 0;
  53
  54 static u8 boSparseTxTraffic = false;
  55
  56 void MTO_Init(MTO_FUNC_INPUT);
  57 void TxRateReductionCtrl(MTO_FUNC_INPUT);
  58 /** 1.1.31.1000 Turbo modify */
  59 void MTO_SetTxCount(MTO_FUNC_INPUT, u8 t0, u8 index);
  60 void MTO_TxFailed(MTO_FUNC_INPUT);
  61 void hal_get_dto_para(MTO_FUNC_INPUT, char *buffer);
  62
  63 //===========================================================================
  64 //  MTO_Init --
  65 //
  66 //  Description:
  67 //    Initialize MTO parameters.
  68 //
  69 //    This function should be invoked during system initialization.
  70 //
  71 //  Arguments:
  72 //    adapter      - The pointer to the Miniport adapter Context
  73 //
  74 //  Return Value:
  75 //    None
  76 //============================================================================
  77 void MTO_Init(MTO_FUNC_INPUT)
  78 {
  79     int i;
  80         //[WKCHEN]pMTOcore_data = pcore_data;
  81 // 20040510 Turbo add for global variable
  82     MTO_TMR_CNT()       = 0;
  83     MTO_TOGGLE_STATE()  = TOGGLE_STATE_IDLE;
  84     MTO_TX_RATE_REDUCTION_STATE() = RATE_CHGSTATE_IDLE;
  85     MTO_BACKOFF_TMR()   = 0;
  86     MTO_LAST_RATE()     = 11;
  87     MTO_CO_EFFICENT()   = 0;
  88
  89     //MTO_TH_FIXANT()     = MTO_DEFAULT_TH_FIXANT;
  90     MTO_TH_CNT()        = MTO_DEFAULT_TH_CNT;
  91     MTO_TH_SQ3()        = MTO_DEFAULT_TH_SQ3;
  92     MTO_TH_IDLE_SLOT()  = MTO_DEFAULT_TH_IDLE_SLOT;
  93     MTO_TH_PR_INTERF()  = MTO_DEFAULT_TH_PR_INTERF;
  94
  95     MTO_TMR_AGING()     = MTO_DEFAULT_TMR_AGING;
  96     MTO_TMR_PERIODIC()  = MTO_DEFAULT_TMR_PERIODIC;
  97
  98     //[WKCHEN]MTO_CCA_MODE_SETUP()= (u8) hal_get_cca_mode(MTO_HAL());
  99     //[WKCHEN]MTO_CCA_MODE()      = MTO_CCA_MODE_SETUP();
 100
 101     //MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_LONG;
 102     MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_SHORT;   // for test
 103
 104     MTO_ANT_SEL()       = hal_get_antenna_number(MTO_HAL());
 105     MTO_ANT_MAC()       = MTO_ANT_SEL();
 106     MTO_CNT_ANT(0)      = 0;
 107     MTO_CNT_ANT(1)      = 0;
 108     MTO_SQ_ANT(0)       = 0;
 109     MTO_SQ_ANT(1)       = 0;
 110     MTO_ANT_DIVERSITY() = MTO_ANTENNA_DIVERSITY_ON;
 111     //CardSet_AntennaDiversity(adapter, MTO_ANT_DIVERSITY());
 112     //PLMESetAntennaDiversity( adapter, MTO_ANT_DIVERSITY());
 113
 114     MTO_AGING_TIMEOUT() = 0;//MTO_TMR_AGING() / MTO_TMR_PERIODIC();
 115
 116     // The following parameters should be initialized to the values set by user
 117     //
 118     //MTO_RATE_LEVEL()            = 10;
 119     MTO_RATE_LEVEL()            = 0;
 120     MTO_FRAG_TH_LEVEL()         = 4;
 121     /** 1.1.23.1000 Turbo modify from -1 to +1
 122         MTO_RTS_THRESHOLD()         = MTO_FRAG_TH() - 1;
 123     MTO_RTS_THRESHOLD_SETUP()   = MTO_FRAG_TH() - 1;
 124         */
 125         MTO_RTS_THRESHOLD()         = MTO_FRAG_TH() + 1;
 126     MTO_RTS_THRESHOLD_SETUP()   = MTO_FRAG_TH() + 1;
 127     // 1.1.23.1000 Turbo add for mto change preamble from 0 to 1
 128         MTO_RATE_CHANGE_ENABLE()    = 1;
 129     MTO_FRAG_CHANGE_ENABLE()    = 0;          // 1.1.29.1000 Turbo add don't support frag
 130         //The default valud of ANTDIV_DEFAULT_ON will be decided by EEPROM
 131         //#ifdef ANTDIV_DEFAULT_ON
 132     //MTO_ANT_DIVERSITY_ENABLE()  = 1;
 133         //#else
 134     //MTO_ANT_DIVERSITY_ENABLE()  = 0;
 135         //#endif
 136     MTO_POWER_CHANGE_ENABLE()   = 1;
 137         MTO_PREAMBLE_CHANGE_ENABLE()= 1;
 138     MTO_RTS_CHANGE_ENABLE()     = 0;          // 1.1.29.1000 Turbo add don't support frag
 139     // 20040512 Turbo add
 140         //old_antenna[0] = 1;
 141         //old_antenna[1] = 0;
 142         //old_antenna[2] = 1;
 143         //old_antenna[3] = 0;
 144         for (i=0;i<MTO_MAX_DATA_RATE_LEVELS;i++)
 145                 retryrate_rec[i]=5;
 146
 147         MTO_TXFLOWCOUNT() = 0;
 148         //--------- DTO threshold parameters -------------
 149         //MTOPARA_PERIODIC_CHECK_CYCLE() = 50;
 150         MTOPARA_PERIODIC_CHECK_CYCLE() = 10;
 151         MTOPARA_RSSI_TH_FOR_ANTDIV() = 10;
 152         MTOPARA_TXCOUNT_TH_FOR_CALC_RATE() = 50;
 153         MTOPARA_TXRATE_INC_TH() = 10;
 154         MTOPARA_TXRATE_DEC_TH() = 30;
 155         MTOPARA_TXRATE_EQ_TH() = 40;
 156         MTOPARA_TXRATE_BACKOFF() = 12;
 157         MTOPARA_TXRETRYRATE_REDUCE() = 6;
 158         if ( MTO_TXPOWER_FROM_EEPROM == 0xff)
 159         {
 160                 switch( MTO_HAL()->phy_type)
 161                 {
 162                         case RF_AIROHA_2230:
 163                         case RF_AIROHA_2230S: // 20060420 Add this
 164                                 MTOPARA_TXPOWER_INDEX() = 46; // MAX-8 // @@ Only for AL 2230
 165                                 break;
 166                         case RF_AIROHA_7230:
 167                                 MTOPARA_TXPOWER_INDEX() = 49;
 168                                 break;
 169                         case RF_WB_242:
 170                                 MTOPARA_TXPOWER_INDEX() = 10;
 171                                 break;
 172                         case RF_WB_242_1:
 173                                 MTOPARA_TXPOWER_INDEX() = 24; // ->10 20060316.1 modify
 174                                 break;
 175                 }
 176         }
 177         else    //follow the setting from EEPROM
 178                 MTOPARA_TXPOWER_INDEX() = MTO_TXPOWER_FROM_EEPROM;
 179         hal_set_rf_power(MTO_HAL(), (u8)MTOPARA_TXPOWER_INDEX());
 180         //------------------------------------------------
 181
 182         // For RSSI turning 20060808.4 Cancel load from EEPROM
 183         MTO_DATA().RSSI_high = -41;
 184         MTO_DATA().RSSI_low = -60;
 185 }
 186
 187 //===========================================================================
 188 //  Description:
 189 //      If we enable DTO, we will ignore the tx count with different tx rate from
 190 //      DTO rate. This is because when we adjust DTO tx rate, there could be some
 191 //      packets in the tx queue with previous tx rate
 192 void MTO_SetTxCount(MTO_FUNC_INPUT, u8 tx_rate, u8 index)
 193 {
 194         MTO_TXFLOWCOUNT()++;
 195         if ((MTO_ENABLE==1) && (MTO_RATE_CHANGE_ENABLE()==1))
 196         {
 197                 if(tx_rate == MTO_DATA_RATE())
 198                 {
 199                         if (index == 0)
 200                         {
 201                                 if (boSparseTxTraffic)
 202                                         MTO_HAL()->dto_tx_frag_count += MTOPARA_PERIODIC_CHECK_CYCLE();
 203                                 else
 204                                         MTO_HAL()->dto_tx_frag_count += 1;
 205                         }
 206                         else
 207                         {
 208                                 if (index<8)
 209                                 {
 210                                         MTO_HAL()->dto_tx_retry_count += index;
 211                                         MTO_HAL()->dto_tx_frag_count += (index+1);
 212                                 }
 213                                 else
 214                                 {
 215                                         MTO_HAL()->dto_tx_retry_count += 7;
 216                                         MTO_HAL()->dto_tx_frag_count += 7;
 217                                 }
 218                         }
 219                 }
 220                 else if(MTO_DATA_RATE()>48 && tx_rate ==48)
 221                 {//ALFRED
 222                         if (index<3) //for reduciing data rate scheme ,
 223                                          //do not calcu different data rate
 224                                                  //3 is the reducing data rate at retry
 225                         {
 226                                 MTO_HAL()->dto_tx_retry_count += index;
 227                                 MTO_HAL()->dto_tx_frag_count += (index+1);
 228                         }
 229                         else
 230                         {
 231                                 MTO_HAL()->dto_tx_retry_count += 3;
 232                                 MTO_HAL()->dto_tx_frag_count += 3;
 233                         }
 234
 235                 }
 236         }
 237         else
 238         {
 239                 MTO_HAL()->dto_tx_retry_count += index;
 240                 MTO_HAL()->dto_tx_frag_count += (index+1);
 241         }
 242         TotalTxPkt ++;
 243         TotalTxPktRetry += (index+1);
 244
 245         PeriodTotalTxPkt ++;
 246         PeriodTotalTxPktRetry += (index+1);
 247 }