1 //============================================================================
5 // MAC Throughput Optimization for W89C33 802.11g WLAN STA.
7 // The following MIB attributes or internal variables will be affected
8 // while the MTO is being executed:
9 // dot11FragmentationThreshold,
11 // transmission rate and PLCP preamble type,
16 // --------------------------------------------------------------------------
17 // 20031227 UN20 Pete Chao
19 // 20031229 Turbo copy from PD43
20 // 20040210 Kevin revised
21 // Copyright (c) 2003 Winbond Electronics Corp. All rights reserved.
22 //============================================================================
24 // LA20040210_DTO kevin
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
35 u16 MTO_Frag_Th_Tbl[MTO_MAX_FRAG_TH_LEVELS] =
37 256, 384, 512, 768, 1536
40 // Declare data rate table
41 //The following table will be changed at anytime if the opration rate supported by AP don't
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
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
51 static int PeriodTotalTxPkt = 0;
52 static int PeriodTotalTxPktRetry = 0;
60 static u8 boSparseTxTraffic = false;
62 void MTO_Init(MTO_FUNC_INPUT);
63 void TxRateReductionCtrl(MTO_FUNC_INPUT);
64 /** 1.1.31.1000 Turbo modify */
65 void MTO_SetTxCount(MTO_FUNC_INPUT, u8 t0, u8 index);
66 void MTO_TxFailed(MTO_FUNC_INPUT);
67 void hal_get_dto_para(MTO_FUNC_INPUT, char *buffer);
69 //===========================================================================
73 // Initialize MTO parameters.
75 // This function should be invoked during system initialization.
78 // adapter - The pointer to the Miniport adapter Context
82 //============================================================================
83 void MTO_Init(MTO_FUNC_INPUT)
86 //[WKCHEN]pMTOcore_data = pcore_data;
87 // 20040510 Turbo add for global variable
89 MTO_TOGGLE_STATE() = TOGGLE_STATE_IDLE;
90 MTO_TX_RATE_REDUCTION_STATE() = RATE_CHGSTATE_IDLE;
91 MTO_BACKOFF_TMR() = 0;
93 MTO_CO_EFFICENT() = 0;
95 //MTO_TH_FIXANT() = MTO_DEFAULT_TH_FIXANT;
96 MTO_TH_CNT() = MTO_DEFAULT_TH_CNT;
97 MTO_TH_SQ3() = MTO_DEFAULT_TH_SQ3;
98 MTO_TH_IDLE_SLOT() = MTO_DEFAULT_TH_IDLE_SLOT;
99 MTO_TH_PR_INTERF() = MTO_DEFAULT_TH_PR_INTERF;
101 MTO_TMR_AGING() = MTO_DEFAULT_TMR_AGING;
102 MTO_TMR_PERIODIC() = MTO_DEFAULT_TMR_PERIODIC;
104 //[WKCHEN]MTO_CCA_MODE_SETUP()= (u8) hal_get_cca_mode(MTO_HAL());
105 //[WKCHEN]MTO_CCA_MODE() = MTO_CCA_MODE_SETUP();
107 //MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_LONG;
108 MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_SHORT; // for test
110 MTO_ANT_SEL() = hal_get_antenna_number(MTO_HAL());
111 MTO_ANT_MAC() = MTO_ANT_SEL();
116 MTO_ANT_DIVERSITY() = MTO_ANTENNA_DIVERSITY_ON;
117 //CardSet_AntennaDiversity(adapter, MTO_ANT_DIVERSITY());
118 //PLMESetAntennaDiversity( adapter, MTO_ANT_DIVERSITY());
120 MTO_AGING_TIMEOUT() = 0;//MTO_TMR_AGING() / MTO_TMR_PERIODIC();
122 // The following parameters should be initialized to the values set by user
124 //MTO_RATE_LEVEL() = 10;
125 MTO_RATE_LEVEL() = 0;
126 MTO_FRAG_TH_LEVEL() = 4;
127 /** 1.1.23.1000 Turbo modify from -1 to +1
128 MTO_RTS_THRESHOLD() = MTO_FRAG_TH() - 1;
129 MTO_RTS_THRESHOLD_SETUP() = MTO_FRAG_TH() - 1;
131 MTO_RTS_THRESHOLD() = MTO_FRAG_TH() + 1;
132 MTO_RTS_THRESHOLD_SETUP() = MTO_FRAG_TH() + 1;
133 // 1.1.23.1000 Turbo add for mto change preamble from 0 to 1
134 MTO_RATE_CHANGE_ENABLE() = 1;
135 MTO_FRAG_CHANGE_ENABLE() = 0; // 1.1.29.1000 Turbo add don't support frag
136 //The default valud of ANTDIV_DEFAULT_ON will be decided by EEPROM
137 //#ifdef ANTDIV_DEFAULT_ON
138 //MTO_ANT_DIVERSITY_ENABLE() = 1;
140 //MTO_ANT_DIVERSITY_ENABLE() = 0;
142 MTO_POWER_CHANGE_ENABLE() = 1;
143 MTO_PREAMBLE_CHANGE_ENABLE()= 1;
144 MTO_RTS_CHANGE_ENABLE() = 0; // 1.1.29.1000 Turbo add don't support frag
145 // 20040512 Turbo add
146 //old_antenna[0] = 1;
147 //old_antenna[1] = 0;
148 //old_antenna[2] = 1;
149 //old_antenna[3] = 0;
150 for (i=0;i<MTO_MAX_DATA_RATE_LEVELS;i++)
153 MTO_TXFLOWCOUNT() = 0;
154 //--------- DTO threshold parameters -------------
155 //MTOPARA_PERIODIC_CHECK_CYCLE() = 50;
156 MTOPARA_PERIODIC_CHECK_CYCLE() = 10;
157 MTOPARA_RSSI_TH_FOR_ANTDIV() = 10;
158 MTOPARA_TXCOUNT_TH_FOR_CALC_RATE() = 50;
159 MTOPARA_TXRATE_INC_TH() = 10;
160 MTOPARA_TXRATE_DEC_TH() = 30;
161 MTOPARA_TXRATE_EQ_TH() = 40;
162 MTOPARA_TXRATE_BACKOFF() = 12;
163 MTOPARA_TXRETRYRATE_REDUCE() = 6;
164 if ( MTO_TXPOWER_FROM_EEPROM == 0xff)
166 switch( MTO_HAL()->phy_type)
169 case RF_AIROHA_2230S: // 20060420 Add this
170 MTOPARA_TXPOWER_INDEX() = 46; // MAX-8 // @@ Only for AL 2230
173 MTOPARA_TXPOWER_INDEX() = 49;
176 MTOPARA_TXPOWER_INDEX() = 10;
179 MTOPARA_TXPOWER_INDEX() = 24; // ->10 20060316.1 modify
183 else //follow the setting from EEPROM
184 MTOPARA_TXPOWER_INDEX() = MTO_TXPOWER_FROM_EEPROM;
185 hal_set_rf_power(MTO_HAL(), (u8)MTOPARA_TXPOWER_INDEX());
186 //------------------------------------------------
188 // For RSSI turning 20060808.4 Cancel load from EEPROM
189 MTO_DATA().RSSI_high = -41;
190 MTO_DATA().RSSI_low = -60;
193 //===========================================================================
195 // If we enable DTO, we will ignore the tx count with different tx rate from
196 // DTO rate. This is because when we adjust DTO tx rate, there could be some
197 // packets in the tx queue with previous tx rate
198 void MTO_SetTxCount(MTO_FUNC_INPUT, u8 tx_rate, u8 index)
201 if ((MTO_ENABLE==1) && (MTO_RATE_CHANGE_ENABLE()==1))
203 if(tx_rate == MTO_DATA_RATE())
207 if (boSparseTxTraffic)
208 MTO_HAL()->dto_tx_frag_count += MTOPARA_PERIODIC_CHECK_CYCLE();
210 MTO_HAL()->dto_tx_frag_count += 1;
216 MTO_HAL()->dto_tx_retry_count += index;
217 MTO_HAL()->dto_tx_frag_count += (index+1);
221 MTO_HAL()->dto_tx_retry_count += 7;
222 MTO_HAL()->dto_tx_frag_count += 7;
226 else if(MTO_DATA_RATE()>48 && tx_rate ==48)
228 if (index<3) //for reduciing data rate scheme ,
229 //do not calcu different data rate
230 //3 is the reducing data rate at retry
232 MTO_HAL()->dto_tx_retry_count += index;
233 MTO_HAL()->dto_tx_frag_count += (index+1);
237 MTO_HAL()->dto_tx_retry_count += 3;
238 MTO_HAL()->dto_tx_frag_count += 3;
245 MTO_HAL()->dto_tx_retry_count += index;
246 MTO_HAL()->dto_tx_frag_count += (index+1);
249 TotalTxPktRetry += (index+1);
252 PeriodTotalTxPktRetry += (index+1);