| /* |
| * ============================================================================ |
| * MTO.C - |
| * |
| * Description: |
| * MAC Throughput Optimization for W89C33 802.11g WLAN STA. |
| * |
| * The following MIB attributes or internal variables will be affected |
| * while the MTO is being executed: |
| * dot11FragmentationThreshold, |
| * dot11RTSThreshold, |
| * transmission rate and PLCP preamble type, |
| * CCA mode, |
| * antenna diversity. |
| * |
| * Copyright (c) 2003 Winbond Electronics Corp. All rights reserved. |
| * ============================================================================ |
| */ |
| |
| #include "sysdef.h" |
| #include "sme_api.h" |
| #include "wbhal_f.h" |
| |
| /* Declare SQ3 to rate and fragmentation threshold table */ |
| /* Declare fragmentation thresholds table */ |
| #define MTO_MAX_FRAG_TH_LEVELS 5 |
| #define MTO_MAX_DATA_RATE_LEVELS 12 |
| |
| u16 MTO_Frag_Th_Tbl[MTO_MAX_FRAG_TH_LEVELS] = { |
| 256, 384, 512, 768, 1536 |
| }; |
| |
| /* |
| * Declare data rate table: |
| * The following table will be changed at anytime if the opration rate |
| * supported by AP don't match the table |
| */ |
| static u8 MTO_Data_Rate_Tbl[MTO_MAX_DATA_RATE_LEVELS] = { |
| 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 |
| }; |
| |
| static int TotalTxPkt; |
| static int TotalTxPktRetry; |
| /* this record the retry rate at different data rate */ |
| static int retryrate_rec[MTO_MAX_DATA_RATE_LEVELS]; |
| |
| static int PeriodTotalTxPkt; |
| static int PeriodTotalTxPktRetry; |
| |
| static u8 boSparseTxTraffic; |
| |
| void MTO_Init(struct wbsoft_priv *adapter); |
| void TxRateReductionCtrl(struct wbsoft_priv *adapter); |
| void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 t0, u8 index); |
| void MTO_TxFailed(struct wbsoft_priv *adapter); |
| void hal_get_dto_para(struct wbsoft_priv *adapter, char *buffer); |
| |
| /* |
| * =========================================================================== |
| * MTO_Init -- |
| * |
| * Description: |
| * Initialize MTO parameters. |
| * |
| * This function should be invoked during system initialization. |
| * |
| * Arguments: |
| * adapter - The pointer to the Miniport adapter Context |
| * =========================================================================== |
| */ |
| void MTO_Init(struct wbsoft_priv *adapter) |
| { |
| int i; |
| |
| MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_SHORT; /* for test */ |
| |
| MTO_CNT_ANT(0) = 0; |
| MTO_CNT_ANT(1) = 0; |
| MTO_SQ_ANT(0) = 0; |
| MTO_SQ_ANT(1) = 0; |
| |
| MTO_AGING_TIMEOUT() = 0; |
| |
| /* The following parameters should be initialized to the values set by user */ |
| MTO_RATE_LEVEL() = 0; |
| MTO_FRAG_TH_LEVEL() = 4; |
| MTO_RTS_THRESHOLD() = MTO_FRAG_TH() + 1; |
| MTO_RTS_THRESHOLD_SETUP() = MTO_FRAG_TH() + 1; |
| MTO_RATE_CHANGE_ENABLE() = 1; |
| MTO_FRAG_CHANGE_ENABLE() = 0; |
| MTO_POWER_CHANGE_ENABLE() = 1; |
| MTO_PREAMBLE_CHANGE_ENABLE() = 1; |
| MTO_RTS_CHANGE_ENABLE() = 0; |
| |
| for (i = 0; i < MTO_MAX_DATA_RATE_LEVELS; i++) |
| retryrate_rec[i] = 5; |
| |
| MTO_TXFLOWCOUNT() = 0; |
| /* --------- DTO threshold parameters ------------- */ |
| MTOPARA_PERIODIC_CHECK_CYCLE() = 10; |
| MTOPARA_RSSI_TH_FOR_ANTDIV() = 10; |
| MTOPARA_TXCOUNT_TH_FOR_CALC_RATE() = 50; |
| MTOPARA_TXRATE_INC_TH() = 10; |
| MTOPARA_TXRATE_DEC_TH() = 30; |
| MTOPARA_TXRATE_EQ_TH() = 40; |
| MTOPARA_TXRATE_BACKOFF() = 12; |
| MTOPARA_TXRETRYRATE_REDUCE() = 6; |
| if (MTO_TXPOWER_FROM_EEPROM == 0xff) { |
| switch (MTO_HAL()->phy_type) { |
| case RF_AIROHA_2230: |
| case RF_AIROHA_2230S: |
| MTOPARA_TXPOWER_INDEX() = 46; /* MAX-8 @@ Only for AL 2230 */ |
| break; |
| case RF_AIROHA_7230: |
| MTOPARA_TXPOWER_INDEX() = 49; |
| break; |
| case RF_WB_242: |
| MTOPARA_TXPOWER_INDEX() = 10; |
| break; |
| case RF_WB_242_1: |
| MTOPARA_TXPOWER_INDEX() = 24; |
| break; |
| } |
| } else { /* follow the setting from EEPROM */ |
| MTOPARA_TXPOWER_INDEX() = MTO_TXPOWER_FROM_EEPROM; |
| } |
| RFSynthesizer_SetPowerIndex(MTO_HAL(), (u8) MTOPARA_TXPOWER_INDEX()); |
| /* ------------------------------------------------ */ |
| |
| /* For RSSI turning -- Cancel load from EEPROM */ |
| MTO_DATA().RSSI_high = -41; |
| MTO_DATA().RSSI_low = -60; |
| } |
| |
| /* =========================================================================== |
| * Description: |
| * If we enable DTO, we will ignore the tx count with different tx rate |
| * from DTO rate. This is because when we adjust DTO tx rate, there could |
| * be some packets in the tx queue with previous tx rate |
| */ |
| |
| void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 tx_rate, u8 index) |
| { |
| MTO_TXFLOWCOUNT()++; |
| if ((MTO_ENABLE == 1) && (MTO_RATE_CHANGE_ENABLE() == 1)) { |
| if (tx_rate == MTO_DATA_RATE()) { |
| if (index == 0) { |
| if (boSparseTxTraffic) |
| MTO_HAL()->dto_tx_frag_count += MTOPARA_PERIODIC_CHECK_CYCLE(); |
| else |
| MTO_HAL()->dto_tx_frag_count += 1; |
| } else { |
| if (index < 8) { |
| MTO_HAL()->dto_tx_retry_count += index; |
| MTO_HAL()->dto_tx_frag_count += (index + 1); |
| } else { |
| MTO_HAL()->dto_tx_retry_count += 7; |
| MTO_HAL()->dto_tx_frag_count += 7; |
| } |
| } |
| } else if (MTO_DATA_RATE() > 48 && tx_rate == 48) { |
| /* for reducing data rate scheme, do not calculate different data rate. 3 is the reducing data rate at retry. */ |
| if (index < 3) { |
| MTO_HAL()->dto_tx_retry_count += index; |
| MTO_HAL()->dto_tx_frag_count += (index + 1); |
| } else { |
| MTO_HAL()->dto_tx_retry_count += 3; |
| MTO_HAL()->dto_tx_frag_count += 3; |
| } |
| |
| } |
| } else { |
| MTO_HAL()->dto_tx_retry_count += index; |
| MTO_HAL()->dto_tx_frag_count += (index + 1); |
| } |
| TotalTxPkt++; |
| TotalTxPktRetry += (index + 1); |
| |
| PeriodTotalTxPkt++; |
| PeriodTotalTxPktRetry += (index + 1); |
| } |