Linux-2.6.33.2/drivers/staging/winbond/mto.c
//============================================================================
// 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.
//
// Revision history:
// --------------------------------------------------------------------------
// 20031227 UN20 Pete Chao
// First draft
// 20031229 Turbo copy from PD43
// 20040210 Kevin revised
// Copyright (c) 2003 Winbond Electronics Corp. All rights reserved.
//============================================================================
// LA20040210_DTO kevin
#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 = 0;
static int TotalTxPktRetry = 0;
static int retryrate_rec[MTO_MAX_DATA_RATE_LEVELS];//this record the retry rate at different data rate
static int PeriodTotalTxPkt = 0;
static int PeriodTotalTxPktRetry = 0;
static u8 boSparseTxTraffic = false;
void MTO_Init(struct wbsoft_priv *adapter);
void TxRateReductionCtrl(struct wbsoft_priv *adapter);
/** 1.1.31.1000 Turbo modify */
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
//
// Return Value:
// None
//============================================================================
void MTO_Init(struct wbsoft_priv *adapter)
{
int i;
//[WKCHEN]MTO_CCA_MODE_SETUP()= (u8) hal_get_cca_mode(MTO_HAL());
//[WKCHEN]MTO_CCA_MODE() = MTO_CCA_MODE_SETUP();
//MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_LONG;
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() = 10;
MTO_RATE_LEVEL() = 0;
MTO_FRAG_TH_LEVEL() = 4;
/** 1.1.23.1000 Turbo modify from -1 to +1
MTO_RTS_THRESHOLD() = MTO_FRAG_TH() - 1;
MTO_RTS_THRESHOLD_SETUP() = MTO_FRAG_TH() - 1;
*/
MTO_RTS_THRESHOLD() = MTO_FRAG_TH() + 1;
MTO_RTS_THRESHOLD_SETUP() = MTO_FRAG_TH() + 1;
// 1.1.23.1000 Turbo add for mto change preamble from 0 to 1
MTO_RATE_CHANGE_ENABLE() = 1;
MTO_FRAG_CHANGE_ENABLE() = 0; // 1.1.29.1000 Turbo add don't support frag
//The default valud of ANTDIV_DEFAULT_ON will be decided by EEPROM
//#ifdef ANTDIV_DEFAULT_ON
//#else
//#endif
MTO_POWER_CHANGE_ENABLE() = 1;
MTO_PREAMBLE_CHANGE_ENABLE()= 1;
MTO_RTS_CHANGE_ENABLE() = 0; // 1.1.29.1000 Turbo add don't support frag
// 20040512 Turbo add
//old_antenna[0] = 1;
//old_antenna[1] = 0;
//old_antenna[2] = 1;
//old_antenna[3] = 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() = 50;
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: // 20060420 Add this
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; // ->10 20060316.1 modify
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 20060808.4 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)
{//ALFRED
if (index<3) //for reduciing data rate scheme ,
//do not calcu different data rate
//3 is the reducing data rate at retry
{
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);
}