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Commit da45e3fe authored by Andrew Miller's avatar Andrew Miller Committed by Greg Kroah-Hartman
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Staging: rtl8187se: r8180_dm.c: Fix comments 

Change c++ style comments to c style
Signed-off-by: default avatarAndrew Miller <amiller@amilx.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 536d190d
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Showing with 525 additions and 501 deletions
drivers/staging/rtl8187se/r8180_dm.c
View file @ da45e3fe
//#include "r8180.h"
/*#include "r8180.h" */
#include "r8180_dm.h"
#include "r8180_hw.h"
#include "r8180_93cx6.h"
//{by amy 080312
//
// Description:
// Return TRUE if we shall perform High Power Mecahnism, FALSE otherwise.
//
//+by amy 080312
/*{by amy 080312 */
/*
* Description:
* Return TRUE if we shall perform High Power Mecahnism, FALSE otherwise.
*
*+by amy 080312
*/
#define RATE_ADAPTIVE_TIMER_PERIOD 300
bool CheckHighPower(struct net_device *dev)
......@@ -25,17 +26,17 @@ bool CheckHighPower(struct net_device *dev)
return true;
}
//
// Description:
// Update Tx power level if necessary.
// See also DoRxHighPower() and SetTxPowerLevel8185() for reference.
//
// Note:
// The reason why we udpate Tx power level here instead of DoRxHighPower()
// is the number of IO to change Tx power is much more than channel TR switch
// and they are related to OFDM and MAC registers.
// So, we don't want to update it so frequently in per-Rx packet base.
//
/*
* Description:
* Update Tx power level if necessary.
* See also DoRxHighPower() and SetTxPowerLevel8185() for reference.
*
* Note:
* The reason why we udpate Tx power level here instead of DoRxHighPower()
* is the number of IO to change Tx power is much more than channel TR switch
* and they are related to OFDM and MAC registers.
* So, we don't want to update it so frequently in per-Rx packet base.
*/
void DoTxHighPower(struct net_device *dev)
{
struct r8180_priv *priv = ieee80211_priv(dev);
......@@ -46,7 +47,7 @@ void DoTxHighPower(struct net_device *dev)
u8 u1bTmp;
char OfdmTxPwrIdx, CckTxPwrIdx;
//printk("----> DoTxHighPower()\n");
/* printk("----> DoTxHighPower()\n"); */
HiPwrUpperTh = priv->RegHiPwrUpperTh;
HiPwrLowerTh = priv->RegHiPwrLowerTh;
......@@ -56,83 +57,87 @@ void DoTxHighPower(struct net_device *dev)
RSSIHiPwrUpperTh = priv->RegRSSIHiPwrUpperTh;
RSSIHiPwrLowerTh = priv->RegRSSIHiPwrLowerTh;
//lzm add 080826
/* lzm add 080826 */
OfdmTxPwrIdx = priv->chtxpwr_ofdm[priv->ieee80211->current_network.channel];
CckTxPwrIdx = priv->chtxpwr[priv->ieee80211->current_network.channel];
// printk("DoTxHighPower() - UndecoratedSmoothedSS:%d, CurCCKRSSI = %d , bCurCCKPkt= %d \n", priv->UndecoratedSmoothedSS, priv->CurCCKRSSI, priv->bCurCCKPkt );
/*
* printk("DoTxHighPower() - UndecoratedSmoothedSS:%d, CurCCKRSSI = %d , bCurCCKPkt= %d \n",
* priv->UndecoratedSmoothedSS, priv->CurCCKRSSI, priv->bCurCCKPkt );
*/
if ((priv->UndecoratedSmoothedSS > HiPwrUpperTh) ||
(priv->bCurCCKPkt && (priv->CurCCKRSSI > RSSIHiPwrUpperTh))) {
// Stevenl suggested that degrade 8dbm in high power sate. 2007-12-04 Isaiah
/* Stevenl suggested that degrade 8dbm in high power sate. 2007-12-04 Isaiah */
// printk("=====>DoTxHighPower() - High Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrUpperTh );
/* printk("=====>DoTxHighPower() - High Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrUpperTh ); */
priv->bToUpdateTxPwr = true;
u1bTmp= read_nic_byte(dev, CCK_TXAGC);
// If it never enter High Power.
/* If it never enter High Power. */
if (CckTxPwrIdx == u1bTmp) {
u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; // 8dbm
u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; /* 8dbm */
write_nic_byte(dev, CCK_TXAGC, u1bTmp);
u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; // 8dbm
u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; /* 8dbm */
write_nic_byte(dev, OFDM_TXAGC, u1bTmp);
}
} else if ((priv->UndecoratedSmoothedSS < HiPwrLowerTh) &&
(!priv->bCurCCKPkt || priv->CurCCKRSSI < RSSIHiPwrLowerTh)) {
// printk("DoTxHighPower() - lower Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrLowerTh );
/* printk("DoTxHighPower() - lower Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrLowerTh ); */
if (priv->bToUpdateTxPwr) {
priv->bToUpdateTxPwr = false;
//SD3 required.
/* SD3 required. */
u1bTmp= read_nic_byte(dev, CCK_TXAGC);
if (u1bTmp < CckTxPwrIdx) {
//u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); // 8dbm
//write_nic_byte(dev, CCK_TXAGC, u1bTmp);
/* u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); 8dbm */
/* write_nic_byte(dev, CCK_TXAGC, u1bTmp); */
write_nic_byte(dev, CCK_TXAGC, CckTxPwrIdx);
}
u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
if (u1bTmp < OfdmTxPwrIdx) {
//u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); // 8dbm
//write_nic_byte(dev, OFDM_TXAGC, u1bTmp);
/* u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); 8dbm */
/* write_nic_byte(dev, OFDM_TXAGC, u1bTmp); */
write_nic_byte(dev, OFDM_TXAGC, OfdmTxPwrIdx);
}
}
}
//printk("<---- DoTxHighPower()\n");
/* printk("<---- DoTxHighPower()\n"); */
}
//
// Description:
// Callback function of UpdateTxPowerWorkItem.
// Because of some event happened, e.g. CCX TPC, High Power Mechanism,
// We update Tx power of current channel again.
//
/*
* Description:
* Callback function of UpdateTxPowerWorkItem.
* Because of some event happened, e.g. CCX TPC, High Power Mechanism,
* We update Tx power of current channel again.
*/
void rtl8180_tx_pw_wq(struct work_struct *work)
{
// struct r8180_priv *priv = container_of(work, struct r8180_priv, watch_dog_wq);
// struct ieee80211_device * ieee = (struct ieee80211_device*)
// container_of(work, struct ieee80211_device, watch_dog_wq);
/* struct r8180_priv *priv = container_of(work, struct r8180_priv, watch_dog_wq);
* struct ieee80211_device * ieee = (struct ieee80211_device*)
* container_of(work, struct ieee80211_device, watch_dog_wq);
*/
struct delayed_work *dwork = to_delayed_work(work);
struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,tx_pw_wq);
struct net_device *dev = ieee->dev;
// printk("----> UpdateTxPowerWorkItemCallback()\n");
/* printk("----> UpdateTxPowerWorkItemCallback()\n"); */
DoTxHighPower(dev);
// printk("<---- UpdateTxPowerWorkItemCallback()\n");
/* printk("<---- UpdateTxPowerWorkItemCallback()\n"); */
}
//
// Description:
// Return TRUE if we shall perform DIG Mecahnism, FALSE otherwise.
//
/*
* Description:
* Return TRUE if we shall perform DIG Mecahnism, FALSE otherwise.
*/
bool CheckDig(struct net_device *dev)
{
struct r8180_priv *priv = ieee80211_priv(dev);
......@@ -144,72 +149,72 @@ bool CheckDig(struct net_device *dev)
if (ieee->state != IEEE80211_LINKED)
return false;
//if(priv->CurrentOperaRate < 36) // Schedule Dig under all OFDM rates. By Bruce, 2007-06-01.
if ((priv->ieee80211->rate / 5) < 36) // Schedule Dig under all OFDM rates. By Bruce, 2007-06-01.
/* if(priv->CurrentOperaRate < 36) // Schedule Dig under all OFDM rates. By Bruce, 2007-06-01. */
if ((priv->ieee80211->rate / 5) < 36) /* Schedule Dig under all OFDM rates. By Bruce, 2007-06-01. */
return false;
return true;
}
//
// Description:
// Implementation of DIG for Zebra and Zebra2.
//
/*
* Description:
* Implementation of DIG for Zebra and Zebra2.
*/
void DIG_Zebra(struct net_device *dev)
{
struct r8180_priv *priv = ieee80211_priv(dev);
u16 CCKFalseAlarm, OFDMFalseAlarm;
u16 OfdmFA1, OfdmFA2;
int InitialGainStep = 7; // The number of initial gain stages.
int LowestGainStage = 4; // The capable lowest stage of performing dig workitem.
int InitialGainStep = 7; /* The number of initial gain stages. */
int LowestGainStage = 4; /* The capable lowest stage of performing dig workitem. */
u32 AwakePeriodIn2Sec = 0;
//printk("---------> DIG_Zebra()\n");
/* printk("---------> DIG_Zebra()\n"); */
CCKFalseAlarm = (u16)(priv->FalseAlarmRegValue & 0x0000ffff);
OFDMFalseAlarm = (u16)((priv->FalseAlarmRegValue >> 16) & 0x0000ffff);
OfdmFA1 = 0x15;
OfdmFA2 = ((u16)(priv->RegDigOfdmFaUpTh)) << 8;
// printk("DIG**********CCK False Alarm: %#X \n",CCKFalseAlarm);
// printk("DIG**********OFDM False Alarm: %#X \n",OFDMFalseAlarm);
/* printk("DIG**********CCK False Alarm: %#X \n",CCKFalseAlarm); */
/* printk("DIG**********OFDM False Alarm: %#X \n",OFDMFalseAlarm); */
// The number of initial gain steps is different, by Bruce, 2007-04-13.
if (priv->InitialGain == 0) { //autoDIG
// Advised from SD3 DZ
priv->InitialGain = 4; // In 87B, m74dBm means State 4 (m82dBm)
/* The number of initial gain steps is different, by Bruce, 2007-04-13. */
if (priv->InitialGain == 0) { /* autoDIG */
/* Advised from SD3 DZ */
priv->InitialGain = 4; /* In 87B, m74dBm means State 4 (m82dBm) */
}
// Advised from SD3 DZ
/* Advised from SD3 DZ */
OfdmFA1 = 0x20;
#if 1 //lzm reserved 080826
#if 1 /* lzm reserved 080826 */
AwakePeriodIn2Sec = (2000 - priv->DozePeriodInPast2Sec);
//printk("&&& DozePeriod=%d AwakePeriod=%d\n", priv->DozePeriodInPast2Sec, AwakePeriodIn2Sec);
/* printk("&&& DozePeriod=%d AwakePeriod=%d\n", priv->DozePeriodInPast2Sec, AwakePeriodIn2Sec); */
priv ->DozePeriodInPast2Sec = 0;
if (AwakePeriodIn2Sec) {
//RT_TRACE(COMP_DIG, DBG_TRACE, ("DIG: AwakePeriodIn2Sec(%d) - FATh(0x%X , 0x%X) ->",AwakePeriodIn2Sec, OfdmFA1, OfdmFA2));
// adjuest DIG threshold.
/* RT_TRACE(COMP_DIG, DBG_TRACE, ("DIG: AwakePeriodIn2Sec(%d) - FATh(0x%X , 0x%X) ->",AwakePeriodIn2Sec, OfdmFA1, OfdmFA2)); */
/* adjuest DIG threshold. */
OfdmFA1 = (u16)((OfdmFA1 * AwakePeriodIn2Sec) / 2000) ;
OfdmFA2 = (u16)((OfdmFA2 * AwakePeriodIn2Sec) / 2000) ;
//RT_TRACE(COMP_DIG, DBG_TRACE, ("( 0x%X , 0x%X)\n", OfdmFA1, OfdmFA2));
/* RT_TRACE(COMP_DIG, DBG_TRACE, ("( 0x%X , 0x%X)\n", OfdmFA1, OfdmFA2)); */
} else {
;//RT_TRACE(COMP_DIG, DBG_WARNING, ("ERROR!! AwakePeriodIn2Sec should not be ZERO!!\n"));
;/* RT_TRACE(COMP_DIG, DBG_WARNING, ("ERROR!! AwakePeriodIn2Sec should not be ZERO!!\n")); */
}
#endif
InitialGainStep = 8;
LowestGainStage = priv->RegBModeGainStage; // Lowest gain stage.
LowestGainStage = priv->RegBModeGainStage; /* Lowest gain stage. */
if (OFDMFalseAlarm > OfdmFA1) {
if (OFDMFalseAlarm > OfdmFA2) {
priv->DIG_NumberFallbackVote++;
if (priv->DIG_NumberFallbackVote > 1) {
//serious OFDM False Alarm, need fallback
/* serious OFDM False Alarm, need fallback */
if (priv->InitialGain < InitialGainStep) {
priv->InitialGainBackUp = priv->InitialGain;
priv->InitialGain = (priv->InitialGain + 1);
// printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2);
// printk("DIG+++++++ fallback OFDM:%d \n", priv->InitialGain);
/* printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2); */
/* printk("DIG+++++++ fallback OFDM:%d \n", priv->InitialGain); */
UpdateInitialGain(dev);
}
priv->DIG_NumberFallbackVote = 0;
......@@ -226,12 +231,12 @@ void DIG_Zebra(struct net_device *dev)
priv->DIG_NumberUpgradeVote++;
if (priv->DIG_NumberUpgradeVote > 9) {
if (priv->InitialGain > LowestGainStage) { // In 87B, m78dBm means State 4 (m864dBm)
if (priv->InitialGain > LowestGainStage) { /* In 87B, m78dBm means State 4 (m864dBm) */
priv->InitialGainBackUp = priv->InitialGain;
priv->InitialGain = (priv->InitialGain - 1);
// printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2);
// printk("DIG--------- Upgrade OFDM:%d \n", priv->InitialGain);
/* printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2); */
/* printk("DIG--------- Upgrade OFDM:%d \n", priv->InitialGain); */
UpdateInitialGain(dev);
}
priv->DIG_NumberFallbackVote = 0;
......@@ -239,14 +244,14 @@ void DIG_Zebra(struct net_device *dev)
}
}
// printk("DIG+++++++ OFDM:%d\n", priv->InitialGain);
//printk("<--------- DIG_Zebra()\n");
/* printk("DIG+++++++ OFDM:%d\n", priv->InitialGain); */
/* printk("<--------- DIG_Zebra()\n"); */
}
//
// Description:
// Dispatch DIG implementation according to RF.
//
/*
* Description:
* Dispatch DIG implementation according to RF.
*/
void DynamicInitGain(struct net_device *dev)
{
DIG_Zebra(dev);
......@@ -259,11 +264,11 @@ void rtl8180_hw_dig_wq(struct work_struct *work)
struct net_device *dev = ieee->dev;
struct r8180_priv *priv = ieee80211_priv(dev);
// Read CCK and OFDM False Alarm.
/* Read CCK and OFDM False Alarm. */
priv->FalseAlarmRegValue = read_nic_dword(dev, CCK_FALSE_ALARM);
// Adjust Initial Gain dynamically.
/* Adjust Initial Gain dynamically. */
DynamicInitGain(dev);
}
......@@ -296,52 +301,52 @@ int IncludedInSupportedRates(struct r8180_priv *priv, u8 TxRate)
return Found;
}
//
// Description:
// Get the Tx rate one degree up form the input rate in the supported rates.
// Return the upgrade rate if it is successed, otherwise return the input rate.
// By Bruce, 2007-06-05.
//
/*
* Description:
* Get the Tx rate one degree up form the input rate in the supported rates.
* Return the upgrade rate if it is successed, otherwise return the input rate.
* By Bruce, 2007-06-05.
*/
u8 GetUpgradeTxRate(struct net_device *dev, u8 rate)
{
struct r8180_priv *priv = ieee80211_priv(dev);
u8 UpRate;
// Upgrade 1 degree.
/* Upgrade 1 degree. */
switch (rate) {
case 108: // Up to 54Mbps.
case 108: /* Up to 54Mbps. */
UpRate = 108;
break;
case 96: // Up to 54Mbps.
case 96: /* Up to 54Mbps. */
UpRate = 108;
break;
case 72: // Up to 48Mbps.
case 72: /* Up to 48Mbps. */
UpRate = 96;
break;
case 48: // Up to 36Mbps.
case 48: /* Up to 36Mbps. */
UpRate = 72;
break;
case 36: // Up to 24Mbps.
case 36: /* Up to 24Mbps. */
UpRate = 48;
break;
case 22: // Up to 18Mbps.
case 22: /* Up to 18Mbps. */
UpRate = 36;
break;
case 11: // Up to 11Mbps.
case 11: /* Up to 11Mbps. */
UpRate = 22;
break;
case 4: // Up to 5.5Mbps.
case 4: /* Up to 5.5Mbps. */
UpRate = 11;
break;
case 2: // Up to 2Mbps.
case 2: /* Up to 2Mbps. */
UpRate = 4;
break;
......@@ -349,62 +354,63 @@ u8 GetUpgradeTxRate(struct net_device *dev, u8 rate)
printk("GetUpgradeTxRate(): Input Tx Rate(%d) is undefined!\n", rate);
return rate;
}
// Check if the rate is valid.
/* Check if the rate is valid. */
if (IncludedInSupportedRates(priv, UpRate)) {
// printk("GetUpgradeTxRate(): GetUpgrade Tx rate(%d) from %d !\n", UpRate, priv->CurrentOperaRate);
/* printk("GetUpgradeTxRate(): GetUpgrade Tx rate(%d) from %d !\n", UpRate, priv->CurrentOperaRate); */
return UpRate;
} else {
//printk("GetUpgradeTxRate(): Tx rate (%d) is not in supported rates\n", UpRate);
/* printk("GetUpgradeTxRate(): Tx rate (%d) is not in supported rates\n", UpRate); */
return rate;
}
return rate;
}
//
// Description:
// Get the Tx rate one degree down form the input rate in the supported rates.
// Return the degrade rate if it is successed, otherwise return the input rate.
// By Bruce, 2007-06-05.
//
/*
* Description:
* Get the Tx rate one degree down form the input rate in the supported rates.
* Return the degrade rate if it is successed, otherwise return the input rate.
* By Bruce, 2007-06-05.
*/
u8 GetDegradeTxRate(struct net_device *dev, u8 rate)
{
struct r8180_priv *priv = ieee80211_priv(dev);
u8 DownRate;
// Upgrade 1 degree.
/* Upgrade 1 degree. */
switch (rate) {
case 108: // Down to 48Mbps.
case 108: /* Down to 48Mbps. */
DownRate = 96;
break;
case 96: // Down to 36Mbps.
case 96: /* Down to 36Mbps. */
DownRate = 72;
break;
case 72: // Down to 24Mbps.
case 72: /* Down to 24Mbps. */
DownRate = 48;
break;
case 48: // Down to 18Mbps.
case 48: /* Down to 18Mbps. */
DownRate = 36;
break;
case 36: // Down to 11Mbps.
case 36: /* Down to 11Mbps. */
DownRate = 22;
break;
case 22: // Down to 5.5Mbps.
case 22: /* Down to 5.5Mbps. */
DownRate = 11;
break;
case 11: // Down to 2Mbps.
case 11: /* Down to 2Mbps. */
DownRate = 4;
break;
case 4: // Down to 1Mbps.
case 4: /* Down to 1Mbps. */
DownRate = 2;
break;
case 2: // Down to 1Mbps.
case 2: /* Down to 1Mbps. */
DownRate = 2;
break;
......@@ -412,21 +418,22 @@ u8 GetDegradeTxRate(struct net_device *dev, u8 rate)
printk("GetDegradeTxRate(): Input Tx Rate(%d) is undefined!\n", rate);
return rate;
}
// Check if the rate is valid.
/* Check if the rate is valid. */
if (IncludedInSupportedRates(priv, DownRate)) {
// printk("GetDegradeTxRate(): GetDegrade Tx rate(%d) from %d!\n", DownRate, priv->CurrentOperaRate);
/* printk("GetDegradeTxRate(): GetDegrade Tx rate(%d) from %d!\n", DownRate, priv->CurrentOperaRate); */
return DownRate;
} else {
//printk("GetDegradeTxRate(): Tx rate (%d) is not in supported rates\n", DownRate);
/* printk("GetDegradeTxRate(): Tx rate (%d) is not in supported rates\n", DownRate); */
return rate;
}
return rate;
}
//
// Helper function to determine if specified data rate is
// CCK rate.
// 2005.01.25, by rcnjko.
//
/*
* Helper function to determine if specified data rate is
* CCK rate.
* 2005.01.25, by rcnjko.
*/
bool MgntIsCckRate(u16 rate)
{
bool bReturn = false;
......@@ -437,43 +444,43 @@ bool MgntIsCckRate(u16 rate)
return bReturn;
}
//
// Description:
// Tx Power tracking mechanism routine on 87SE.
// Created by Roger, 2007.12.11.
//
/*
* Description:
* Tx Power tracking mechanism routine on 87SE.
* Created by Roger, 2007.12.11.
*/
void TxPwrTracking87SE(struct net_device *dev)
{
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
u8 tmpu1Byte, CurrentThermal, Idx;
char CckTxPwrIdx, OfdmTxPwrIdx;
//u32 u4bRfReg;
/* u32 u4bRfReg; */
tmpu1Byte = read_nic_byte(dev, EN_LPF_CAL);
CurrentThermal = (tmpu1Byte & 0xf0) >> 4; //[ 7:4]: thermal meter indication.
CurrentThermal = (CurrentThermal > 0x0c) ? 0x0c:CurrentThermal;//lzm add 080826
CurrentThermal = (tmpu1Byte & 0xf0) >> 4; /*[ 7:4]: thermal meter indication. */
CurrentThermal = (CurrentThermal > 0x0c) ? 0x0c:CurrentThermal;/* lzm add 080826 */
//printk("TxPwrTracking87SE(): CurrentThermal(%d)\n", CurrentThermal);
/* printk("TxPwrTracking87SE(): CurrentThermal(%d)\n", CurrentThermal); */
if (CurrentThermal != priv->ThermalMeter) {
// printk("TxPwrTracking87SE(): Thermal meter changed!!!\n");
/* printk("TxPwrTracking87SE(): Thermal meter changed!!!\n"); */
// Update Tx Power level on each channel.
/* Update Tx Power level on each channel. */
for (Idx = 1; Idx < 15; Idx++) {
CckTxPwrIdx = priv->chtxpwr[Idx];
OfdmTxPwrIdx = priv->chtxpwr_ofdm[Idx];
if (CurrentThermal > priv->ThermalMeter) {
// higher thermal meter.
/* higher thermal meter. */
CckTxPwrIdx += (CurrentThermal - priv->ThermalMeter) * 2;
OfdmTxPwrIdx += (CurrentThermal - priv->ThermalMeter) * 2;
if (CckTxPwrIdx > 35)
CckTxPwrIdx = 35; // Force TxPower to maximal index.
CckTxPwrIdx = 35; /* Force TxPower to maximal index. */
if (OfdmTxPwrIdx > 35)
OfdmTxPwrIdx = 35;
} else {
// lower thermal meter.
/* lower thermal meter. */
CckTxPwrIdx -= (priv->ThermalMeter - CurrentThermal) * 2;
OfdmTxPwrIdx -= (priv->ThermalMeter - CurrentThermal) * 2;
......@@ -483,12 +490,12 @@ void TxPwrTracking87SE(struct net_device *dev)
OfdmTxPwrIdx = 0;
}
// Update TxPower level on CCK and OFDM resp.
/* Update TxPower level on CCK and OFDM resp. */
priv->chtxpwr[Idx] = CckTxPwrIdx;
priv->chtxpwr_ofdm[Idx] = OfdmTxPwrIdx;
}
// Update TxPower level immediately.
/* Update TxPower level immediately. */
rtl8225z2_SetTXPowerLevel(dev, priv->ieee80211->current_network.channel);
}
priv->ThermalMeter = CurrentThermal;
......@@ -499,7 +506,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
unsigned long CurrTxokCnt;
u16 CurrRetryCnt;
u16 CurrRetryRate;
//u16 i,idx;
/*u16 i,idx; */
unsigned long CurrRxokCnt;
bool bTryUp = false;
bool bTryDown = false;
......@@ -521,345 +528,353 @@ void StaRateAdaptive87SE(struct net_device *dev)
TxThroughput = (u32)(priv->NumTxOkBytesTotal - priv->LastTxOKBytes);
priv->LastTxOKBytes = priv->NumTxOkBytesTotal;
priv->CurrentOperaRate = priv->ieee80211->rate / 5;
//printk("priv->CurrentOperaRate is %d\n",priv->CurrentOperaRate);
//2 Compute retry ratio.
/* printk("priv->CurrentOperaRate is %d\n",priv->CurrentOperaRate); */
/* 2 Compute retry ratio. */
if (CurrTxokCnt > 0) {
CurrRetryRate = (u16)(CurrRetryCnt * 100 / CurrTxokCnt);
} else {
// It may be serious retry. To distinguish serious retry or no packets modified by Bruce
/* It may be serious retry. To distinguish serious retry or no packets modified by Bruce */
CurrRetryRate = (u16)(CurrRetryCnt * 100 / 1);
}
//
// Added by Roger, 2007.01.02.
// For debug information.
//
//printk("\n(1) pHalData->LastRetryRate: %d \n",priv->LastRetryRate);
//printk("(2) RetryCnt = %d \n", CurrRetryCnt);
//printk("(3) TxokCnt = %d \n", CurrTxokCnt);
//printk("(4) CurrRetryRate = %d \n", CurrRetryRate);
//printk("(5) CurrSignalStrength = %d \n",CurrSignalStrength);
//printk("(6) TxThroughput is %d\n",TxThroughput);
//printk("priv->NumTxOkBytesTotal is %d\n",priv->NumTxOkBytesTotal);
/*
* Added by Roger, 2007.01.02.
* For debug information.
*
* printk("\n(1) pHalData->LastRetryRate: %d \n",priv->LastRetryRate);
* printk("(2) RetryCnt = %d \n", CurrRetryCnt);
* printk("(3) TxokCnt = %d \n", CurrTxokCnt);
* printk("(4) CurrRetryRate = %d \n", CurrRetryRate);
* printk("(5) CurrSignalStrength = %d \n",CurrSignalStrength);
* printk("(6) TxThroughput is %d\n",TxThroughput);
* printk("priv->NumTxOkBytesTotal is %d\n",priv->NumTxOkBytesTotal);
*/
priv->LastRetryCnt = priv->CurrRetryCnt;
priv->LastTxokCnt = priv->NumTxOkTotal;
priv->LastRxokCnt = priv->ieee80211->NumRxOkTotal;
priv->CurrRetryCnt = 0;
//2No Tx packets, return to init_rate or not?
/* 2No Tx packets, return to init_rate or not? */
if (CurrRetryRate == 0 && CurrTxokCnt == 0) {
//
//After 9 (30*300ms) seconds in this condition, we try to raise rate.
//
/*
* After 9 (30*300ms) seconds in this condition, we try to raise rate.
*/
priv->TryupingCountNoData++;
// printk("No Tx packets, TryupingCountNoData(%d)\n", priv->TryupingCountNoData);
//[TRC Dell Lab] Extend raised period from 4.5sec to 9sec, Isaiah 2008-02-15 18:00
/* printk("No Tx packets, TryupingCountNoData(%d)\n", priv->TryupingCountNoData); */
/* [TRC Dell Lab] Extend raised period from 4.5sec to 9sec, Isaiah 2008-02-15 18:00 */
if (priv->TryupingCountNoData > 30) {
priv->TryupingCountNoData = 0;
priv->CurrentOperaRate = GetUpgradeTxRate(dev, priv->CurrentOperaRate);
// Reset Fail Record
/* Reset Fail Record */
priv->LastFailTxRate = 0;
priv->LastFailTxRateSS = -200;
priv->FailTxRateCount = 0;
}
goto SetInitialGain;
} else {
priv->TryupingCountNoData = 0; //Reset trying up times.
}
//
// For Netgear case, I comment out the following signal strength estimation,
// which can results in lower rate to transmit when sample is NOT enough (e.g. PING request).
// 2007.04.09, by Roger.
//
//
// Restructure rate adaptive as the following main stages:
// (1) Add retry threshold in 54M upgrading condition with signal strength.
// (2) Add the mechanism to degrade to CCK rate according to signal strength
// and retry rate.
// (3) Remove all Initial Gain Updates over OFDM rate. To avoid the complicated
// situation, Initial Gain Update is upon on DIG mechanism except CCK rate.
// (4) Add the mehanism of trying to upgrade tx rate.
// (5) Record the information of upping tx rate to avoid trying upping tx rate constantly.
// By Bruce, 2007-06-05.
//
//
// 11Mbps or 36Mbps
// Check more times in these rate(key rates).
//
priv->TryupingCountNoData = 0; /*Reset trying up times. */
}
/*
* For Netgear case, I comment out the following signal strength estimation,
* which can results in lower rate to transmit when sample is NOT enough (e.g. PING request).
* 2007.04.09, by Roger.
*
*
*
* Restructure rate adaptive as the following main stages:
* (1) Add retry threshold in 54M upgrading condition with signal strength.
* (2) Add the mechanism to degrade to CCK rate according to signal strength
* and retry rate.
* (3) Remove all Initial Gain Updates over OFDM rate. To avoid the complicated
* situation, Initial Gain Update is upon on DIG mechanism except CCK rate.
* (4) Add the mehanism of trying to upgrade tx rate.
* (5) Record the information of upping tx rate to avoid trying upping tx rate constantly.
* By Bruce, 2007-06-05.
*
*/
/*
* 11Mbps or 36Mbps
* Check more times in these rate(key rates).
*/
if (priv->CurrentOperaRate == 22 || priv->CurrentOperaRate == 72)
TryUpTh += 9;
//
// Let these rates down more difficult.
//
/*
* Let these rates down more difficult.
*/
if (MgntIsCckRate(priv->CurrentOperaRate) || priv->CurrentOperaRate == 36)
TryDownTh += 1;
//1 Adjust Rate.
/* 1 Adjust Rate. */
if (priv->bTryuping == true) {
//2 For Test Upgrading mechanism
// Note:
// Sometimes the throughput is upon on the capability bwtween the AP and NIC,
// thus the low data rate does not improve the performance.
// We randomly upgrade the data rate and check if the retry rate is improved.
// Upgrading rate did not improve the retry rate, fallback to the original rate.
/* 2 For Test Upgrading mechanism
* Note:
* Sometimes the throughput is upon on the capability bwtween the AP and NIC,
* thus the low data rate does not improve the performance.
* We randomly upgrade the data rate and check if the retry rate is improved.
*/
/* Upgrading rate did not improve the retry rate, fallback to the original rate. */
if ((CurrRetryRate > 25) && TxThroughput < priv->LastTxThroughput) {
//Not necessary raising rate, fall back rate.
/*Not necessary raising rate, fall back rate. */
bTryDown = true;
//printk("case1-1: Not necessary raising rate, fall back rate....\n");
//printk("case1-1: pMgntInfo->CurrentOperaRate =%d, TxThroughput = %d, LastThroughput = %d\n",
// priv->CurrentOperaRate, TxThroughput, priv->LastTxThroughput);
/* printk("case1-1: Not necessary raising rate, fall back rate....\n"); */
/* printk("case1-1: pMgntInfo->CurrentOperaRate =%d, TxThroughput = %d, LastThroughput = %d\n", */
/* priv->CurrentOperaRate, TxThroughput, priv->LastTxThroughput); */
} else {
priv->bTryuping = false;
}
} else if (CurrSignalStrength > -47 && (CurrRetryRate < 50)) {
//2For High Power
//
// Added by Roger, 2007.04.09.
// Return to highest data rate, if signal strength is good enough.
// SignalStrength threshold(-50dbm) is for RTL8186.
// Revise SignalStrength threshold to -51dbm.
//
// Also need to check retry rate for safety, by Bruce, 2007-06-05.
/*
* 2For High Power
*
* Added by Roger, 2007.04.09.
* Return to highest data rate, if signal strength is good enough.
* SignalStrength threshold(-50dbm) is for RTL8186.
* Revise SignalStrength threshold to -51dbm.
*/
/* Also need to check retry rate for safety, by Bruce, 2007-06-05. */
if (priv->CurrentOperaRate != priv->ieee80211->current_network.HighestOperaRate) {
bTryUp = true;
// Upgrade Tx Rate directly.
/* Upgrade Tx Rate directly. */
priv->TryupingCount += TryUpTh;
}
// printk("case2: StaRateAdaptive87SE: Power(%d) is high enough!!. \n", CurrSignalStrength);
/* printk("case2: StaRateAdaptive87SE: Power(%d) is high enough!!. \n", CurrSignalStrength); */
} else if (CurrTxokCnt > 9 && CurrTxokCnt < 100 && CurrRetryRate >= 600) {
//2 For Serious Retry
//
// Traffic is not busy but our Tx retry is serious.
//
/*
*2 For Serious Retry
*
* Traffic is not busy but our Tx retry is serious.
*/
bTryDown = true;
// Let Rate Mechanism to degrade tx rate directly.
/* Let Rate Mechanism to degrade tx rate directly. */
priv->TryDownCountLowData += TryDownTh;
// printk("case3: RA: Tx Retry is serious. Degrade Tx Rate to %d directly...\n", priv->CurrentOperaRate);
/* printk("case3: RA: Tx Retry is serious. Degrade Tx Rate to %d directly...\n", priv->CurrentOperaRate); */
} else if (priv->CurrentOperaRate == 108) {
//2For 54Mbps
// Air Link
/* 2For 54Mbps */
/* Air Link */
if ((CurrRetryRate > 26) && (priv->LastRetryRate > 25)) {
// if ((CurrRetryRate>40)&&(priv->LastRetryRate>39))
//Down to rate 48Mbps.
/* if ((CurrRetryRate>40)&&(priv->LastRetryRate>39)) */
/*Down to rate 48Mbps. */
bTryDown = true;
}
// Cable Link
/* Cable Link */
else if ((CurrRetryRate > 17) && (priv->LastRetryRate > 16) && (CurrSignalStrength > -72)) {
// else if ((CurrRetryRate>17)&&(priv->LastRetryRate>16) && (CurrSignalStrength > -72))
//Down to rate 48Mbps.
/* else if ((CurrRetryRate>17)&&(priv->LastRetryRate>16) && (CurrSignalStrength > -72)) */
/*Down to rate 48Mbps. */
bTryDown = true;
}
if (bTryDown && (CurrSignalStrength < -75)) //cable link
if (bTryDown && (CurrSignalStrength < -75)) /* cable link */
priv->TryDownCountLowData += TryDownTh;
//printk("case4---54M \n");
/*printk("case4---54M \n"); */
}
else if (priv->CurrentOperaRate == 96) {
//2For 48Mbps
//Air Link
/* 2For 48Mbps */
/* Air Link */
if (((CurrRetryRate > 48) && (priv->LastRetryRate > 47))) {
// if ( ((CurrRetryRate>65) && (priv->LastRetryRate>64)))
//Down to rate 36Mbps.
/* if ( ((CurrRetryRate>65) && (priv->LastRetryRate>64))) */
/* Down to rate 36Mbps. */
bTryDown = true;
} else if (((CurrRetryRate > 21) && (priv->LastRetryRate > 20)) && (CurrSignalStrength > -74)) { //Cable Link
//Down to rate 36Mbps.
} else if (((CurrRetryRate > 21) && (priv->LastRetryRate > 20)) && (CurrSignalStrength > -74)) { /* Cable Link */
/* Down to rate 36Mbps. */
bTryDown = true;
} else if ((CurrRetryRate > (priv->LastRetryRate + 50)) && (priv->FailTxRateCount > 2)) {
// else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
/* else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 )) */
bTryDown = true;
priv->TryDownCountLowData += TryDownTh;
} else if ((CurrRetryRate < 8) && (priv->LastRetryRate < 8)) { //TO DO: need to consider (RSSI)
// else if ( (CurrRetryRate<28) && (priv->LastRetryRate<8) )
} else if ((CurrRetryRate < 8) && (priv->LastRetryRate < 8)) { /* TO DO: need to consider (RSSI) */
/* else if ( (CurrRetryRate<28) && (priv->LastRetryRate<8) ) */
bTryUp = true;
}
if (bTryDown && (CurrSignalStrength < -75)){
priv->TryDownCountLowData += TryDownTh;
}
//printk("case5---48M \n");
/* printk("case5---48M \n"); */
} else if (priv->CurrentOperaRate == 72) {
//2For 36Mbps
/* 2For 36Mbps */
if ((CurrRetryRate > 43) && (priv->LastRetryRate > 41)) {
// if ( (CurrRetryRate>60) && (priv->LastRetryRate>59))
//Down to rate 24Mbps.
/* if ( (CurrRetryRate>60) && (priv->LastRetryRate>59)) */
/* Down to rate 24Mbps. */
bTryDown = true;
} else if ((CurrRetryRate > (priv->LastRetryRate + 50)) && (priv->FailTxRateCount > 2)) {
// else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
/* else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 )) */
bTryDown = true;
priv->TryDownCountLowData += TryDownTh;
} else if ((CurrRetryRate < 15) && (priv->LastRetryRate < 16)) { //TO DO: need to consider (RSSI)
// else if ( (CurrRetryRate<35) && (priv->LastRetryRate<36))
} else if ((CurrRetryRate < 15) && (priv->LastRetryRate < 16)) { /* TO DO: need to consider (RSSI) */
/* else if ( (CurrRetryRate<35) && (priv->LastRetryRate<36)) */
bTryUp = true;
}
if (bTryDown && (CurrSignalStrength < -80))
priv->TryDownCountLowData += TryDownTh;
//printk("case6---36M \n");
/* printk("case6---36M \n"); */
} else if (priv->CurrentOperaRate == 48) {
//2For 24Mbps
// Air Link
/* 2For 24Mbps */
/* Air Link */
if (((CurrRetryRate > 63) && (priv->LastRetryRate > 62))) {
// if ( ((CurrRetryRate>83) && (priv->LastRetryRate>82)))
//Down to rate 18Mbps.
/* if ( ((CurrRetryRate>83) && (priv->LastRetryRate>82))) */
/* Down to rate 18Mbps. */
bTryDown = true;
} else if (((CurrRetryRate > 33) && (priv->LastRetryRate > 32)) && (CurrSignalStrength > -82)) { //Cable Link
// else if ( ((CurrRetryRate>50) && (priv->LastRetryRate>49)) && (CurrSignalStrength > -82) )
//Down to rate 18Mbps.
} else if (((CurrRetryRate > 33) && (priv->LastRetryRate > 32)) && (CurrSignalStrength > -82)) { /* Cable Link */
/* else if ( ((CurrRetryRate>50) && (priv->LastRetryRate>49)) && (CurrSignalStrength > -82) ) */
/* Down to rate 18Mbps. */
bTryDown = true;
} else if ((CurrRetryRate > (priv->LastRetryRate + 50)) && (priv->FailTxRateCount > 2 )) {
// else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
/* else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 )) */
bTryDown = true;
priv->TryDownCountLowData += TryDownTh;
} else if ((CurrRetryRate < 20) && (priv->LastRetryRate < 21)) { //TO DO: need to consider (RSSI)
// else if ( (CurrRetryRate<40) && (priv->LastRetryRate<41))
} else if ((CurrRetryRate < 20) && (priv->LastRetryRate < 21)) { /* TO DO: need to consider (RSSI) */
/* else if ( (CurrRetryRate<40) && (priv->LastRetryRate<41)) */
bTryUp = true;
}
if (bTryDown && (CurrSignalStrength < -82))
priv->TryDownCountLowData += TryDownTh;
//printk("case7---24M \n");
/* printk("case7---24M \n"); */
} else if (priv->CurrentOperaRate == 36) {
//2For 18Mbps
// original (109, 109)
//[TRC Dell Lab] (90, 91), Isaiah 2008-02-18 23:24
// (85, 86), Isaiah 2008-02-18 24:00
/* 2For 18Mbps
* original (109, 109)
* [TRC Dell Lab] (90, 91), Isaiah 2008-02-18 23:24
* (85, 86), Isaiah 2008-02-18 24:00
*/
if (((CurrRetryRate > 85) && (priv->LastRetryRate > 86))) {
// if ( ((CurrRetryRate>115) && (priv->LastRetryRate>116)))
//Down to rate 11Mbps.
/* if ( ((CurrRetryRate>115) && (priv->LastRetryRate>116))) */
/* Down to rate 11Mbps. */
bTryDown = true;
//[TRC Dell Lab] Isaiah 2008-02-18 23:24
/* [TRC Dell Lab] Isaiah 2008-02-18 23:24 */
} else if ((CurrRetryRate > (priv->LastRetryRate + 50)) && (priv->FailTxRateCount > 2)) {
// else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
/* else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 )) */
bTryDown = true;
priv->TryDownCountLowData += TryDownTh;
} else if ((CurrRetryRate < 22) && (priv->LastRetryRate < 23)) { //TO DO: need to consider (RSSI)
// else if ( (CurrRetryRate<42) && (priv->LastRetryRate<43))
} else if ((CurrRetryRate < 22) && (priv->LastRetryRate < 23)) { /* TO DO: need to consider (RSSI) */
/* else if ( (CurrRetryRate<42) && (priv->LastRetryRate<43)) */
bTryUp = true;
}
//printk("case8---18M \n");
/* printk("case8---18M \n"); */
} else if (priv->CurrentOperaRate == 22) {
//2For 11Mbps
/* 2For 11Mbps */
if (CurrRetryRate > 95) {
// if (CurrRetryRate>155)
/* if (CurrRetryRate>155) */
bTryDown = true;
}
else if ((CurrRetryRate < 29) && (priv->LastRetryRate < 30)) { //TO DO: need to consider (RSSI)
// else if ( (CurrRetryRate<49) && (priv->LastRetryRate <50) )
else if ((CurrRetryRate < 29) && (priv->LastRetryRate < 30)) { /*TO DO: need to consider (RSSI) */
/* else if ( (CurrRetryRate<49) && (priv->LastRetryRate <50) ) */
bTryUp = true;
}
//printk("case9---11M \n");
/* printk("case9---11M \n"); */
} else if (priv->CurrentOperaRate == 11) {
//2For 5.5Mbps
/* 2For 5.5Mbps */
if (CurrRetryRate > 149) {
// if (CurrRetryRate>189)
/* if (CurrRetryRate>189) */
bTryDown = true;
} else if ((CurrRetryRate < 60) && (priv->LastRetryRate < 65)) {
// else if ( (CurrRetryRate<80) && (priv->LastRetryRate < 85))
/* else if ( (CurrRetryRate<80) && (priv->LastRetryRate < 85)) */
bTryUp = true;
}
//printk("case10---5.5M \n");
/* printk("case10---5.5M \n"); */
} else if (priv->CurrentOperaRate == 4) {
//2For 2 Mbps
/* 2For 2 Mbps */
if ((CurrRetryRate > 99) && (priv->LastRetryRate > 99)) {
// if((CurrRetryRate>199) && (priv->LastRetryRate>199))
/* if((CurrRetryRate>199) && (priv->LastRetryRate>199)) */
bTryDown = true;
} else if ((CurrRetryRate < 65) && (priv->LastRetryRate < 70)) {
// else if ( (CurrRetryRate < 85) && (priv->LastRetryRate < 90))
/* else if ( (CurrRetryRate < 85) && (priv->LastRetryRate < 90)) */
bTryUp = true;
}
//printk("case11---2M \n");
/* printk("case11---2M \n"); */
} else if (priv->CurrentOperaRate == 2) {
//2For 1 Mbps
/* 2For 1 Mbps */
if ((CurrRetryRate < 70) && (priv->LastRetryRate < 75)) {
// if( (CurrRetryRate<90) && (priv->LastRetryRate<95))
/* if( (CurrRetryRate<90) && (priv->LastRetryRate<95)) */
bTryUp = true;
}
//printk("case12---1M \n");
/* printk("case12---1M \n"); */
}
if (bTryUp && bTryDown)
printk("StaRateAdaptive87B(): Tx Rate tried upping and downing simultaneously!\n");
//1 Test Upgrading Tx Rate
// Sometimes the cause of the low throughput (high retry rate) is the compatibility between the AP and NIC.
// To test if the upper rate may cause lower retry rate, this mechanism randomly occurs to test upgrading tx rate.
/* 1 Test Upgrading Tx Rate
* Sometimes the cause of the low throughput (high retry rate) is the compatibility between the AP and NIC.
* To test if the upper rate may cause lower retry rate, this mechanism randomly occurs to test upgrading tx rate.
*/
if (!bTryUp && !bTryDown && (priv->TryupingCount == 0) && (priv->TryDownCountLowData == 0)
&& priv->CurrentOperaRate != priv->ieee80211->current_network.HighestOperaRate && priv->FailTxRateCount < 2) {
if (jiffies % (CurrRetryRate + 101) == 0) {
bTryUp = true;
priv->bTryuping = true;
//printk("StaRateAdaptive87SE(): Randomly try upgrading...\n");
/* printk("StaRateAdaptive87SE(): Randomly try upgrading...\n"); */
}
}
//1 Rate Mechanism
/* 1 Rate Mechanism */
if (bTryUp) {
priv->TryupingCount++;
priv->TryDownCountLowData = 0;
// printk("UP: pHalData->TryupingCount = %d\n", priv->TryupingCount);
// printk("UP: TryUpTh(%d)+ (FailTxRateCount(%d))^2 =%d\n",
// TryUpTh, priv->FailTxRateCount, (TryUpTh + priv->FailTxRateCount * priv->FailTxRateCount) );
// printk("UP: pHalData->bTryuping=%d\n", priv->bTryuping);}
/* printk("UP: pHalData->TryupingCount = %d\n", priv->TryupingCount); */
/* printk("UP: TryUpTh(%d)+ (FailTxRateCount(%d))^2 =%d\n", */
/* TryUpTh, priv->FailTxRateCount, (TryUpTh + priv->FailTxRateCount * priv->FailTxRateCount) ); */
/* printk("UP: pHalData->bTryuping=%d\n", priv->bTryuping);} */
//
// Check more times if we need to upgrade indeed.
// Because the largest value of pHalData->TryupingCount is 0xFFFF and
// the largest value of pHalData->FailTxRateCount is 0x14,
// this condition will be satisfied at most every 2 min.
//
/*
* Check more times if we need to upgrade indeed.
* Because the largest value of pHalData->TryupingCount is 0xFFFF and
* the largest value of pHalData->FailTxRateCount is 0x14,
* this condition will be satisfied at most every 2 min.
*/
if ((priv->TryupingCount > (TryUpTh + priv->FailTxRateCount * priv->FailTxRateCount)) ||
(CurrSignalStrength > priv->LastFailTxRateSS) || priv->bTryuping) {
priv->TryupingCount = 0;
//
// When transferring from CCK to OFDM, DIG is an important issue.
//
/*
* When transferring from CCK to OFDM, DIG is an important issue.
*/
if (priv->CurrentOperaRate == 22)
bUpdateInitialGain = true;
// The difference in throughput between 48Mbps and 36Mbps is 8M.
// So, we must be carefully in this rate scale. Isaiah 2008-02-15.
//
/*
* The difference in throughput between 48Mbps and 36Mbps is 8M.
* So, we must be carefully in this rate scale. Isaiah 2008-02-15.
*/
if (((priv->CurrentOperaRate == 72) || (priv->CurrentOperaRate == 48) || (priv->CurrentOperaRate == 36)) &&
(priv->FailTxRateCount > 2))
priv->RateAdaptivePeriod = (RATE_ADAPTIVE_TIMER_PERIOD / 2);
// (1)To avoid upgrade frequently to the fail tx rate, add the FailTxRateCount into the threshold.
// (2)If the signal strength is increased, it may be able to upgrade.
/* (1)To avoid upgrade frequently to the fail tx rate, add the FailTxRateCount into the threshold. */
/* (2)If the signal strength is increased, it may be able to upgrade. */
priv->CurrentOperaRate = GetUpgradeTxRate(dev, priv->CurrentOperaRate);
// printk("StaRateAdaptive87SE(): Upgrade Tx Rate to %d\n", priv->CurrentOperaRate);
/* printk("StaRateAdaptive87SE(): Upgrade Tx Rate to %d\n", priv->CurrentOperaRate); */
//[TRC Dell Lab] Bypass 12/9/6, Isaiah 2008-02-18 20:00
/* [TRC Dell Lab] Bypass 12/9/6, Isaiah 2008-02-18 20:00 */
if (priv->CurrentOperaRate == 36) {
priv->bUpdateARFR = true;
write_nic_word(dev, ARFR, 0x0F8F); //bypass 12/9/6
// printk("UP: ARFR=0xF8F\n");
write_nic_word(dev, ARFR, 0x0F8F); /* bypass 12/9/6 */
/* printk("UP: ARFR=0xF8F\n"); */
} else if(priv->bUpdateARFR) {
priv->bUpdateARFR = false;
write_nic_word(dev, ARFR, 0x0FFF); //set 1M ~ 54Mbps.
// printk("UP: ARFR=0xFFF\n");
write_nic_word(dev, ARFR, 0x0FFF); /* set 1M ~ 54Mbps. */
/* printk("UP: ARFR=0xFFF\n"); */
}
// Update Fail Tx rate and count.
/* Update Fail Tx rate and count. */
if (priv->LastFailTxRate != priv->CurrentOperaRate) {
priv->LastFailTxRate = priv->CurrentOperaRate;
priv->FailTxRateCount = 0;
priv->LastFailTxRateSS = -200; // Set lowest power.
priv->LastFailTxRateSS = -200; /* Set lowest power. */
}
}
} else {
......@@ -871,19 +886,19 @@ void StaRateAdaptive87SE(struct net_device *dev)
priv->TryDownCountLowData++;
priv->TryupingCount = 0;
// printk("DN: pHalData->TryDownCountLowData = %d\n",priv->TryDownCountLowData);
// printk("DN: TryDownTh =%d\n", TryDownTh);
// printk("DN: pHalData->bTryuping=%d\n", priv->bTryuping);
/* printk("DN: pHalData->TryDownCountLowData = %d\n",priv->TryDownCountLowData); */
/* printk("DN: TryDownTh =%d\n", TryDownTh); */
/* printk("DN: pHalData->bTryuping=%d\n", priv->bTryuping); */
//Check if Tx rate can be degraded or Test trying upgrading should fallback.
/* Check if Tx rate can be degraded or Test trying upgrading should fallback. */
if (priv->TryDownCountLowData > TryDownTh || priv->bTryuping) {
priv->TryDownCountLowData = 0;
priv->bTryuping = false;
// Update fail information.
/* Update fail information. */
if (priv->LastFailTxRate == priv->CurrentOperaRate) {
priv->FailTxRateCount++;
// Record the Tx fail rate signal strength.
/* Record the Tx fail rate signal strength. */
if (CurrSignalStrength > priv->LastFailTxRateSS)
priv->LastFailTxRateSS = CurrSignalStrength;
} else {
......@@ -893,39 +908,41 @@ void StaRateAdaptive87SE(struct net_device *dev)
}
priv->CurrentOperaRate = GetDegradeTxRate(dev, priv->CurrentOperaRate);
// Reduce chariot training time at weak signal strength situation. SD3 ED demand.
//[TRC Dell Lab] Revise Signal Threshold from -75 to -80 , Isaiah 2008-02-18 20:00
/* Reduce chariot training time at weak signal strength situation. SD3 ED demand. */
/* [TRC Dell Lab] Revise Signal Threshold from -75 to -80 , Isaiah 2008-02-18 20:00 */
if ((CurrSignalStrength < -80) && (priv->CurrentOperaRate > 72 )) {
priv->CurrentOperaRate = 72;
// printk("DN: weak signal strength (%d), degrade to 36Mbps\n", CurrSignalStrength);
/* printk("DN: weak signal strength (%d), degrade to 36Mbps\n", CurrSignalStrength); */
}
//[TRC Dell Lab] Bypass 12/9/6, Isaiah 2008-02-18 20:00
/* [TRC Dell Lab] Bypass 12/9/6, Isaiah 2008-02-18 20:00 */
if (priv->CurrentOperaRate == 36) {
priv->bUpdateARFR = true;
write_nic_word(dev, ARFR, 0x0F8F); //bypass 12/9/6
// printk("DN: ARFR=0xF8F\n");
write_nic_word(dev, ARFR, 0x0F8F); /* bypass 12/9/6 */
/* printk("DN: ARFR=0xF8F\n"); */
} else if (priv->bUpdateARFR) {
priv->bUpdateARFR = false;
write_nic_word(dev, ARFR, 0x0FFF); //set 1M ~ 54Mbps.
// printk("DN: ARFR=0xFFF\n");
write_nic_word(dev, ARFR, 0x0FFF); /* set 1M ~ 54Mbps. */
/* printk("DN: ARFR=0xFFF\n"); */
}
//
// When it is CCK rate, it may need to update initial gain to receive lower power packets.
//
/*
* When it is CCK rate, it may need to update initial gain to receive lower power packets.
*/
if (MgntIsCckRate(priv->CurrentOperaRate)) {
bUpdateInitialGain = true;
}
// printk("StaRateAdaptive87SE(): Degrade Tx Rate to %d\n", priv->CurrentOperaRate);
/* printk("StaRateAdaptive87SE(): Degrade Tx Rate to %d\n", priv->CurrentOperaRate); */
}
} else {
if (priv->TryDownCountLowData > 0)
priv->TryDownCountLowData--;
}
// Keep the Tx fail rate count to equal to 0x15 at most.
// Reduce the fail count at least to 10 sec if tx rate is tending stable.
/*
* Keep the Tx fail rate count to equal to 0x15 at most.
* Reduce the fail count at least to 10 sec if tx rate is tending stable.
*/
if (priv->FailTxRateCount >= 0x15 ||
(!bTryUp && !bTryDown && priv->TryDownCountLowData == 0 && priv->TryupingCount && priv->FailTxRateCount > 0x6)) {
priv->FailTxRateCount--;
......@@ -935,60 +952,60 @@ void StaRateAdaptive87SE(struct net_device *dev)
OfdmTxPwrIdx = priv->chtxpwr_ofdm[priv->ieee80211->current_network.channel];
CckTxPwrIdx = priv->chtxpwr[priv->ieee80211->current_network.channel];
//[TRC Dell Lab] Mac0x9e increase 2 level in 36M~18M situation, Isaiah 2008-02-18 24:00
/* [TRC Dell Lab] Mac0x9e increase 2 level in 36M~18M situation, Isaiah 2008-02-18 24:00 */
if ((priv->CurrentOperaRate < 96) && (priv->CurrentOperaRate > 22)) {
u1bCck = read_nic_byte(dev, CCK_TXAGC);
u1bOfdm = read_nic_byte(dev, OFDM_TXAGC);
// case 1: Never enter High power
/* case 1: Never enter High power */
if (u1bCck == CckTxPwrIdx) {
if (u1bOfdm != (OfdmTxPwrIdx + 2)) {
priv->bEnhanceTxPwr = true;
u1bOfdm = ((u1bOfdm + 2) > 35) ? 35: (u1bOfdm + 2);
write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
// printk("Enhance OFDM_TXAGC : +++++ u1bOfdm= 0x%x\n", u1bOfdm);
/* printk("Enhance OFDM_TXAGC : +++++ u1bOfdm= 0x%x\n", u1bOfdm); */
}
} else if (u1bCck < CckTxPwrIdx) {
// case 2: enter high power
/* case 2: enter high power */
if (!priv->bEnhanceTxPwr) {
priv->bEnhanceTxPwr = true;
u1bOfdm = ((u1bOfdm + 2) > 35) ? 35: (u1bOfdm + 2);
write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
//RT_TRACE(COMP_RATE, DBG_TRACE, ("Enhance OFDM_TXAGC(2) : +++++ u1bOfdm= 0x%x\n", u1bOfdm));
/* RT_TRACE(COMP_RATE, DBG_TRACE, ("Enhance OFDM_TXAGC(2) : +++++ u1bOfdm= 0x%x\n", u1bOfdm)); */
}
}
} else if (priv->bEnhanceTxPwr) { //54/48/11/5.5/2/1
} else if (priv->bEnhanceTxPwr) { /* 54/48/11/5.5/2/1 */
u1bCck = read_nic_byte(dev, CCK_TXAGC);
u1bOfdm = read_nic_byte(dev, OFDM_TXAGC);
// case 1: Never enter High power
/* case 1: Never enter High power */
if (u1bCck == CckTxPwrIdx) {
priv->bEnhanceTxPwr = false;
write_nic_byte(dev, OFDM_TXAGC, OfdmTxPwrIdx);
//printk("Recover OFDM_TXAGC : ===== u1bOfdm= 0x%x\n", OfdmTxPwrIdx);
/*printk("Recover OFDM_TXAGC : ===== u1bOfdm= 0x%x\n", OfdmTxPwrIdx); */
}
// case 2: enter high power
/* case 2: enter high power */
else if (u1bCck < CckTxPwrIdx) {
priv->bEnhanceTxPwr = false;
u1bOfdm = ((u1bOfdm - 2) > 0) ? (u1bOfdm - 2): 0;
write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
//RT_TRACE(COMP_RATE, DBG_TRACE, ("Recover OFDM_TXAGC(2): ===== u1bOfdm= 0x%x\n", u1bOfdm));
/* RT_TRACE(COMP_RATE, DBG_TRACE, ("Recover OFDM_TXAGC(2): ===== u1bOfdm= 0x%x\n", u1bOfdm)); */
}
}
//
// We need update initial gain when we set tx rate "from OFDM to CCK" or
// "from CCK to OFDM".
//
/*
* We need update initial gain when we set tx rate "from OFDM to CCK" or
* "from CCK to OFDM".
*/
SetInitialGain:
if (bUpdateInitialGain) {
if (MgntIsCckRate(priv->CurrentOperaRate)) { // CCK
if (MgntIsCckRate(priv->CurrentOperaRate)) { /* CCK */
if (priv->InitialGain > priv->RegBModeGainStage) {
priv->InitialGainBackUp = priv->InitialGain;
if (CurrSignalStrength < -85) // Low power, OFDM [0x17] = 26.
//SD3 SYs suggest that CurrSignalStrength < -65, ofdm 0x17=26.
if (CurrSignalStrength < -85) /* Low power, OFDM [0x17] = 26. */
/* SD3 SYs suggest that CurrSignalStrength < -65, ofdm 0x17=26. */
priv->InitialGain = priv->RegBModeGainStage;
else if (priv->InitialGain > priv->RegBModeGainStage + 1)
......@@ -1000,7 +1017,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n",priv->InitialGain, priv->CurrentOperaRate);
UpdateInitialGain(dev);
}
} else { // OFDM
} else { /* OFDM */
if (priv->InitialGain < 4) {
priv->InitialGainBackUp = priv->InitialGain;
......@@ -1011,7 +1028,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
}
}
//Record the related info
/* Record the related info */
priv->LastRetryRate = CurrRetryRate;
priv->LastTxThroughput = TxThroughput;
priv->ieee80211->rate = priv->CurrentOperaRate * 5;
......@@ -1022,62 +1039,62 @@ void rtl8180_rate_adapter(struct work_struct *work)
struct delayed_work *dwork = to_delayed_work(work);
struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, rate_adapter_wq);
struct net_device *dev = ieee->dev;
//struct r8180_priv *priv = ieee80211_priv(dev);
// DMESG("---->rtl8180_rate_adapter");
/* struct r8180_priv *priv = ieee80211_priv(dev); */
/* DMESG("---->rtl8180_rate_adapter"); */
StaRateAdaptive87SE(dev);
// DMESG("<----rtl8180_rate_adapter");
/* DMESG("<----rtl8180_rate_adapter"); */
}
void timer_rate_adaptive(unsigned long data)
{
struct r8180_priv *priv = ieee80211_priv((struct net_device *)data);
//DMESG("---->timer_rate_adaptive()\n");
/* DMESG("---->timer_rate_adaptive()\n"); */
if (!priv->up) {
// DMESG("<----timer_rate_adaptive():driver is not up!\n");
/* DMESG("<----timer_rate_adaptive():driver is not up!\n"); */
return;
}
if ((priv->ieee80211->iw_mode != IW_MODE_MASTER)
&& (priv->ieee80211->state == IEEE80211_LINKED) &&
(priv->ForcedDataRate == 0)) {
// DMESG("timer_rate_adaptive():schedule rate_adapter_wq\n");
/* DMESG("timer_rate_adaptive():schedule rate_adapter_wq\n"); */
queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->rate_adapter_wq);
// StaRateAdaptive87SE((struct net_device *)data);
/* StaRateAdaptive87SE((struct net_device *)data); */
}
priv->rateadapter_timer.expires = jiffies + MSECS(priv->RateAdaptivePeriod);
add_timer(&priv->rateadapter_timer);
//DMESG("<----timer_rate_adaptive()\n");
/* DMESG("<----timer_rate_adaptive()\n"); */
}
//by amy 080312}
/* by amy 080312} */
void SwAntennaDiversityRxOk8185(struct net_device *dev, u8 SignalStrength)
{
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
// printk("+SwAntennaDiversityRxOk8185: RxSs: %d\n", SignalStrength);
/* printk("+SwAntennaDiversityRxOk8185: RxSs: %d\n", SignalStrength); */
priv->AdRxOkCnt++;
if (priv->AdRxSignalStrength != -1) {
priv->AdRxSignalStrength = ((priv->AdRxSignalStrength * 7) + (SignalStrength * 3)) / 10;
} else { // Initialization case.
} else { /* Initialization case. */
priv->AdRxSignalStrength = SignalStrength;
}
//{+by amy 080312
if (priv->LastRxPktAntenna) //Main antenna.
/* {+by amy 080312 */
if (priv->LastRxPktAntenna) /* Main antenna. */
priv->AdMainAntennaRxOkCnt++;
else // Aux antenna.
else /* Aux antenna. */
priv->AdAuxAntennaRxOkCnt++;
//+by amy 080312
// printk("-SwAntennaDiversityRxOk8185: AdRxOkCnt: %d AdRxSignalStrength: %d\n", priv->AdRxOkCnt, priv->AdRxSignalStrength);
/* +by amy 080312 */
/* printk("-SwAntennaDiversityRxOk8185: AdRxOkCnt: %d AdRxSignalStrength: %d\n", priv->AdRxOkCnt, priv->AdRxSignalStrength); */
}
//
// Description:
// Change Antenna Switch.
//
/*
* Description:
* Change Antenna Switch.
*/
bool SetAntenna8185(struct net_device *dev, u8 u1bAntennaIndex)
{
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
bool bAntennaSwitched = false;
// printk("+SetAntenna8185(): Antenna is switching to: %d \n", u1bAntennaIndex);
/* printk("+SetAntenna8185(): Antenna is switching to: %d \n", u1bAntennaIndex); */
switch (u1bAntennaIndex) {
case 0:
......@@ -1109,14 +1126,14 @@ bool SetAntenna8185(struct net_device *dev, u8 u1bAntennaIndex)
if(bAntennaSwitched)
priv->CurrAntennaIndex = u1bAntennaIndex;
// printk("-SetAntenna8185(): return (%#X)\n", bAntennaSwitched);
/* printk("-SetAntenna8185(): return (%#X)\n", bAntennaSwitched); */
return bAntennaSwitched;
}
//
// Description:
// Toggle Antenna switch.
//
/*
* Description:
* Toggle Antenna switch.
*/
bool SwitchAntenna(struct net_device *dev)
{
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
......@@ -1125,33 +1142,37 @@ bool SwitchAntenna(struct net_device *dev)
if (priv->CurrAntennaIndex == 0) {
bResult = SetAntenna8185(dev, 1);
//by amy 080312
// printk("SwitchAntenna(): switching to antenna 1 ......\n");
// bResult = SetAntenna8185(dev, 1);//-by amy 080312
/*
* by amy 080312
* printk("SwitchAntenna(): switching to antenna 1 ......\n");
* bResult = SetAntenna8185(dev, 1);//-by amy 080312
*/
} else {
bResult = SetAntenna8185(dev, 0);
//by amy 080312
// printk("SwitchAntenna(): switching to antenna 0 ......\n");
// bResult = SetAntenna8185(dev, 0);//-by amy 080312
/*
* by amy 080312
* printk("SwitchAntenna(): switching to antenna 0 ......\n");
* bResult = SetAntenna8185(dev, 0);//-by amy 080312
*/
}
return bResult;
}
//
// Description:
// Engine of SW Antenna Diversity mechanism.
// Since 8187 has no Tx part information,
// this implementation is only dependend on Rx part information.
//
// 2006.04.17, by rcnjko.
//
/*
* Description:
* Engine of SW Antenna Diversity mechanism.
* Since 8187 has no Tx part information,
* this implementation is only dependend on Rx part information.
*
* 2006.04.17, by rcnjko.
*/
void SwAntennaDiversity(struct net_device *dev)
{
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
bool bSwCheckSS = false;
// printk("+SwAntennaDiversity(): CurrAntennaIndex: %d\n", priv->CurrAntennaIndex);
// printk("AdTickCount is %d\n",priv->AdTickCount);
//by amy 080312
/* printk("+SwAntennaDiversity(): CurrAntennaIndex: %d\n", priv->CurrAntennaIndex); */
/* printk("AdTickCount is %d\n",priv->AdTickCount); */
/* by amy 080312 */
if (bSwCheckSS) {
priv->AdTickCount++;
......@@ -1160,168 +1181,169 @@ void SwAntennaDiversity(struct net_device *dev)
printk("(2) AdRxSignalStrength: %ld, AdRxSsThreshold: %ld\n",
priv->AdRxSignalStrength, priv->AdRxSsThreshold);
}
// priv->AdTickCount++;//-by amy 080312
/* priv->AdTickCount++;//-by amy 080312 */
// Case 1. No Link.
/* Case 1. No Link. */
if (priv->ieee80211->state != IEEE80211_LINKED) {
// printk("SwAntennaDiversity(): Case 1. No Link.\n");
/* printk("SwAntennaDiversity(): Case 1. No Link.\n"); */
priv->bAdSwitchedChecking = false;
// I switch antenna here to prevent any one of antenna is broken before link established, 2006.04.18, by rcnjko..
/* I switch antenna here to prevent any one of antenna is broken before link established, 2006.04.18, by rcnjko.. */
SwitchAntenna(dev);
// Case 2. Linked but no packet receive.d
/* Case 2. Linked but no packet receive.d */
} else if (priv->AdRxOkCnt == 0) {
// printk("SwAntennaDiversity(): Case 2. Linked but no packet received.\n");
/* printk("SwAntennaDiversity(): Case 2. Linked but no packet received.\n"); */
priv->bAdSwitchedChecking = false;
SwitchAntenna(dev);
// Case 3. Evaluate last antenna switch action and undo it if necessary.
/* Case 3. Evaluate last antenna switch action and undo it if necessary. */
} else if (priv->bAdSwitchedChecking == true) {
// printk("SwAntennaDiversity(): Case 3. Evaluate last antenna switch action.\n");
/* printk("SwAntennaDiversity(): Case 3. Evaluate last antenna switch action.\n"); */
priv->bAdSwitchedChecking = false;
// Adjust Rx signal strength threshold.
/* Adjust Rx signal strength threshold. */
priv->AdRxSsThreshold = (priv->AdRxSignalStrength + priv->AdRxSsBeforeSwitched) / 2;
priv->AdRxSsThreshold = (priv->AdRxSsThreshold > priv->AdMaxRxSsThreshold) ?
priv->AdMaxRxSsThreshold: priv->AdRxSsThreshold;
if(priv->AdRxSignalStrength < priv->AdRxSsBeforeSwitched) {
// Rx signal strength is not improved after we swtiched antenna. => Swich back.
// printk("SwAntennaDiversity(): Rx Signal Strength is not improved, CurrRxSs: %d, LastRxSs: %d\n",
// priv->AdRxSignalStrength, priv->AdRxSsBeforeSwitched);
//by amy 080312
// Increase Antenna Diversity checking period due to bad decision.
/* Rx signal strength is not improved after we swtiched antenna. => Swich back. */
/* printk("SwAntennaDiversity(): Rx Signal Strength is not improved, CurrRxSs: %d, LastRxSs: %d\n", */
/* priv->AdRxSignalStrength, priv->AdRxSsBeforeSwitched); */
/* by amy 080312 */
/* Increase Antenna Diversity checking period due to bad decision. */
priv->AdCheckPeriod *= 2;
//by amy 080312
// Increase Antenna Diversity checking period.
/* by amy 080312 */
/* Increase Antenna Diversity checking period. */
if (priv->AdCheckPeriod > priv->AdMaxCheckPeriod)
priv->AdCheckPeriod = priv->AdMaxCheckPeriod;
// Wrong deceision => switch back.
/* Wrong deceision => switch back. */
SwitchAntenna(dev);
} else {
// Rx Signal Strength is improved.
// printk("SwAntennaDiversity(): Rx Signal Strength is improved, CurrRxSs: %d, LastRxSs: %d\n",
// priv->AdRxSignalStrength, priv->AdRxSsBeforeSwitched);
/* Rx Signal Strength is improved. */
/* printk("SwAntennaDiversity(): Rx Signal Strength is improved, CurrRxSs: %d, LastRxSs: %d\n", */
/* priv->AdRxSignalStrength, priv->AdRxSsBeforeSwitched); */
// Reset Antenna Diversity checking period to its min value.
/* Reset Antenna Diversity checking period to its min value. */
priv->AdCheckPeriod = priv->AdMinCheckPeriod;
}
// printk("SwAntennaDiversity(): AdRxSsThreshold: %d, AdCheckPeriod: %d\n",
// priv->AdRxSsThreshold, priv->AdCheckPeriod);
/* printk("SwAntennaDiversity(): AdRxSsThreshold: %d, AdCheckPeriod: %d\n", */
/* priv->AdRxSsThreshold, priv->AdCheckPeriod); */
}
// Case 4. Evaluate if we shall switch antenna now.
// Cause Table Speed is very fast in TRC Dell Lab, we check it every time.
else { // if(priv->AdTickCount >= priv->AdCheckPeriod)//-by amy 080312
// printk("SwAntennaDiversity(): Case 4. Evaluate if we shall switch antenna now.\n");
/* Case 4. Evaluate if we shall switch antenna now. */
/* Cause Table Speed is very fast in TRC Dell Lab, we check it every time. */
else { /* if(priv->AdTickCount >= priv->AdCheckPeriod)//-by amy 080312 */
/* printk("SwAntennaDiversity(): Case 4. Evaluate if we shall switch antenna now.\n"); */
priv->AdTickCount = 0;
//
// <Roger_Notes> We evaluate RxOk counts for each antenna first and than
// evaluate signal strength.
// The following operation can overcome the disability of CCA on both two antennas
// When signal strength was extremely low or high.
// 2008.01.30.
//
//
// Evaluate RxOk count from each antenna if we shall switch default antenna now.
// Added by Roger, 2008.02.21.
//{by amy 080312
/*
* <Roger_Notes> We evaluate RxOk counts for each antenna first and than
* evaluate signal strength.
* The following operation can overcome the disability of CCA on both two antennas
* When signal strength was extremely low or high.
* 2008.01.30.
*/
/*
* Evaluate RxOk count from each antenna if we shall switch default antenna now.
* Added by Roger, 2008.02.21.
*/
/* {by amy 080312 */
if ((priv->AdMainAntennaRxOkCnt < priv->AdAuxAntennaRxOkCnt)
&& (priv->CurrAntennaIndex == 0)) {
// We set Main antenna as default but RxOk count was less than Aux ones.
/* We set Main antenna as default but RxOk count was less than Aux ones. */
// printk("SwAntennaDiversity(): Main antenna RxOK is poor, AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
// priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
/* printk("SwAntennaDiversity(): Main antenna RxOK is poor, AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n", */
/* priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt); */
// Switch to Aux antenna.
/* Switch to Aux antenna. */
SwitchAntenna(dev);
priv->bHWAdSwitched = true;
} else if ((priv->AdAuxAntennaRxOkCnt < priv->AdMainAntennaRxOkCnt)
&& (priv->CurrAntennaIndex == 1)) {
// We set Aux antenna as default but RxOk count was less than Main ones.
/* We set Aux antenna as default but RxOk count was less than Main ones. */
// printk("SwAntennaDiversity(): Aux antenna RxOK is poor, AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
// priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
/* printk("SwAntennaDiversity(): Aux antenna RxOK is poor, AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n", */
/* priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt); */
// Switch to Main antenna.
/* Switch to Main antenna. */
SwitchAntenna(dev);
priv->bHWAdSwitched = true;
} else {
// Default antenna is better.
/* Default antenna is better. */
// printk("SwAntennaDiversity(): Default antenna is better., AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
// priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
/* printk("SwAntennaDiversity(): Default antenna is better., AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n", */
/* priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt); */
// Still need to check current signal strength.
/* Still need to check current signal strength. */
priv->bHWAdSwitched = false;
}
//
// <Roger_Notes> We evaluate Rx signal strength ONLY when default antenna
// didn't changed by HW evaluation.
// 2008.02.27.
//
// [TRC Dell Lab] SignalStrength is inaccuracy. Isaiah 2008-03-05
// For example, Throughput of aux is better than main antenna(about 10M v.s 2M),
// but AdRxSignalStrength is less than main.
// Our guess is that main antenna have lower throughput and get many change
// to receive more CCK packets(ex.Beacon) which have stronger SignalStrength.
//
/*
* <Roger_Notes> We evaluate Rx signal strength ONLY when default antenna
* didn't changed by HW evaluation.
* 2008.02.27.
*
* [TRC Dell Lab] SignalStrength is inaccuracy. Isaiah 2008-03-05
* For example, Throughput of aux is better than main antenna(about 10M v.s 2M),
* but AdRxSignalStrength is less than main.
* Our guess is that main antenna have lower throughput and get many change
* to receive more CCK packets(ex.Beacon) which have stronger SignalStrength.
*/
if ((!priv->bHWAdSwitched) && (bSwCheckSS)) {
//by amy 080312}
// Evaluate Rx signal strength if we shall switch antenna now.
/* by amy 080312} */
/* Evaluate Rx signal strength if we shall switch antenna now. */
if (priv->AdRxSignalStrength < priv->AdRxSsThreshold) {
// Rx signal strength is weak => Switch Antenna.
// printk("SwAntennaDiversity(): Rx Signal Strength is weak, CurrRxSs: %d, RxSsThreshold: %d\n",
// priv->AdRxSignalStrength, priv->AdRxSsThreshold);
/* Rx signal strength is weak => Switch Antenna. */
/* printk("SwAntennaDiversity(): Rx Signal Strength is weak, CurrRxSs: %d, RxSsThreshold: %d\n", */
/* priv->AdRxSignalStrength, priv->AdRxSsThreshold); */
priv->AdRxSsBeforeSwitched = priv->AdRxSignalStrength;
priv->bAdSwitchedChecking = true;
SwitchAntenna(dev);
} else {
// Rx signal strength is OK.
// printk("SwAntennaDiversity(): Rx Signal Strength is OK, CurrRxSs: %d, RxSsThreshold: %d\n",
// priv->AdRxSignalStrength, priv->AdRxSsThreshold);
/* Rx signal strength is OK. */
/* printk("SwAntennaDiversity(): Rx Signal Strength is OK, CurrRxSs: %d, RxSsThreshold: %d\n", */
/* priv->AdRxSignalStrength, priv->AdRxSsThreshold); */
priv->bAdSwitchedChecking = false;
// Increase Rx signal strength threshold if necessary.
if ((priv->AdRxSignalStrength > (priv->AdRxSsThreshold + 10)) && // Signal is much stronger than current threshold
priv->AdRxSsThreshold <= priv->AdMaxRxSsThreshold) { // Current threhold is not yet reach upper limit.
/* Increase Rx signal strength threshold if necessary. */
if ((priv->AdRxSignalStrength > (priv->AdRxSsThreshold + 10)) && /* Signal is much stronger than current threshold */
priv->AdRxSsThreshold <= priv->AdMaxRxSsThreshold) { /* Current threhold is not yet reach upper limit. */
priv->AdRxSsThreshold = (priv->AdRxSsThreshold + priv->AdRxSignalStrength) / 2;
priv->AdRxSsThreshold = (priv->AdRxSsThreshold > priv->AdMaxRxSsThreshold) ?
priv->AdMaxRxSsThreshold: priv->AdRxSsThreshold;//+by amy 080312
priv->AdMaxRxSsThreshold: priv->AdRxSsThreshold;/* +by amy 080312 */
}
// Reduce Antenna Diversity checking period if possible.
/* Reduce Antenna Diversity checking period if possible. */
if (priv->AdCheckPeriod > priv->AdMinCheckPeriod)
priv->AdCheckPeriod /= 2;
}
}
}
//by amy 080312
// Reset antenna diversity Rx related statistics.
/* by amy 080312 */
/* Reset antenna diversity Rx related statistics. */
priv->AdRxOkCnt = 0;
priv->AdMainAntennaRxOkCnt = 0;
priv->AdAuxAntennaRxOkCnt = 0;
//by amy 080312
/* by amy 080312 */
// priv->AdRxOkCnt = 0;//-by amy 080312
/* priv->AdRxOkCnt = 0;//-by amy 080312 */
// printk("-SwAntennaDiversity()\n");
/* printk("-SwAntennaDiversity()\n"); */
}
//
// Description:
// Return TRUE if we shall perform Tx Power Tracking Mecahnism, FALSE otherwise.
//
/*
* Description:
* Return TRUE if we shall perform Tx Power Tracking Mecahnism, FALSE otherwise.
*/
bool CheckTxPwrTracking(struct net_device *dev)
{
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
......@@ -1329,13 +1351,15 @@ bool CheckTxPwrTracking(struct net_device *dev)
if (!priv->bTxPowerTrack)
return false;
//lzm reserved 080826
//if(priv->bScanInProgress)
//{
// return false;
//}
/* lzm reserved 080826 */
/*
* if(priv->bScanInProgress)
* {
* return false;
* }
*/
//if 87SE is in High Power , don't do Tx Power Tracking. asked by SD3 ED. 2008-08-08 Isaiah
/* if 87SE is in High Power , don't do Tx Power Tracking. asked by SD3 ED. 2008-08-08 Isaiah */
if (priv->bToUpdateTxPwr)
return false;
......@@ -1343,29 +1367,29 @@ bool CheckTxPwrTracking(struct net_device *dev)
}
//
// Description:
// Timer callback function of SW Antenna Diversity.
//
/*
* Description:
* Timer callback function of SW Antenna Diversity.
*/
void SwAntennaDiversityTimerCallback(struct net_device *dev)
{
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
RT_RF_POWER_STATE rtState;
//printk("+SwAntennaDiversityTimerCallback()\n");
/* printk("+SwAntennaDiversityTimerCallback()\n"); */
//
// We do NOT need to switch antenna while RF is off.
// 2007.05.09, added by Roger.
//
/*
* We do NOT need to switch antenna while RF is off.
* 2007.05.09, added by Roger.
*/
rtState = priv->eRFPowerState;
do {
if (rtState == eRfOff) {
// printk("SwAntennaDiversityTimer - RF is OFF.\n");
/* printk("SwAntennaDiversityTimer - RF is OFF.\n"); */
break;
} else if (rtState == eRfSleep) {
// Don't access BB/RF under Disable PLL situation.
//RT_TRACE((COMP_RF|COMP_ANTENNA), DBG_LOUD, ("SwAntennaDiversityTimerCallback(): RF is Sleep => skip it\n"));
/* Don't access BB/RF under Disable PLL situation. */
/* RT_TRACE((COMP_RF|COMP_ANTENNA), DBG_LOUD, ("SwAntennaDiversityTimerCallback(): RF is Sleep => skip it\n")); */
break;
}
SwAntennaDiversity(dev);
......@@ -1377,6 +1401,6 @@ void SwAntennaDiversityTimerCallback(struct net_device *dev)
add_timer(&priv->SwAntennaDiversityTimer);
}
//printk("-SwAntennaDiversityTimerCallback()\n");
/* printk("-SwAntennaDiversityTimerCallback()\n"); */
}
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