2009-03-03 22:38:09 +00:00
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//#include "r8180.h"
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#include "r8180_dm.h"
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#include "r8180_hw.h"
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#include "r8180_93cx6.h"
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//{by amy 080312
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//
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// Description:
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// Return TRUE if we shall perform High Power Mecahnism, FALSE otherwise.
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//
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//+by amy 080312
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#define RATE_ADAPTIVE_TIMER_PERIOD 300
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bool CheckHighPower(struct net_device *dev)
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{
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struct r8180_priv *priv = ieee80211_priv(dev);
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struct ieee80211_device *ieee = priv->ieee80211;
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if(!priv->bRegHighPowerMechanism)
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{
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return false;
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}
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if(ieee->state == IEEE80211_LINKED_SCANNING)
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{
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return false;
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}
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return true;
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}
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//
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// Description:
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// Update Tx power level if necessary.
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// See also DoRxHighPower() and SetTxPowerLevel8185() for reference.
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//
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// Note:
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// The reason why we udpate Tx power level here instead of DoRxHighPower()
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2009-11-14 15:09:06 +00:00
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// is the number of IO to change Tx power is much more than channel TR switch
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2009-03-03 22:38:09 +00:00
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// and they are related to OFDM and MAC registers.
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// So, we don't want to update it so frequently in per-Rx packet base.
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//
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void
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DoTxHighPower(
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struct net_device *dev
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)
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{
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struct r8180_priv *priv = ieee80211_priv(dev);
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u16 HiPwrUpperTh = 0;
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u16 HiPwrLowerTh = 0;
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u8 RSSIHiPwrUpperTh;
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u8 RSSIHiPwrLowerTh;
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u8 u1bTmp;
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char OfdmTxPwrIdx, CckTxPwrIdx;
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//printk("----> DoTxHighPower()\n");
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HiPwrUpperTh = priv->RegHiPwrUpperTh;
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HiPwrLowerTh = priv->RegHiPwrLowerTh;
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HiPwrUpperTh = HiPwrUpperTh * 10;
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HiPwrLowerTh = HiPwrLowerTh * 10;
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RSSIHiPwrUpperTh = priv->RegRSSIHiPwrUpperTh;
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RSSIHiPwrLowerTh = priv->RegRSSIHiPwrLowerTh;
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//lzm add 080826
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OfdmTxPwrIdx = priv->chtxpwr_ofdm[priv->ieee80211->current_network.channel];
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CckTxPwrIdx = priv->chtxpwr[priv->ieee80211->current_network.channel];
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// printk("DoTxHighPower() - UndecoratedSmoothedSS:%d, CurCCKRSSI = %d , bCurCCKPkt= %d \n", priv->UndecoratedSmoothedSS, priv->CurCCKRSSI, priv->bCurCCKPkt );
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if((priv->UndecoratedSmoothedSS > HiPwrUpperTh) ||
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(priv->bCurCCKPkt && (priv->CurCCKRSSI > RSSIHiPwrUpperTh)))
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{
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// Stevenl suggested that degrade 8dbm in high power sate. 2007-12-04 Isaiah
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// printk("=====>DoTxHighPower() - High Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrUpperTh );
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priv->bToUpdateTxPwr = true;
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u1bTmp= read_nic_byte(dev, CCK_TXAGC);
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// If it never enter High Power.
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if( CckTxPwrIdx == u1bTmp)
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{
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u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; // 8dbm
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write_nic_byte(dev, CCK_TXAGC, u1bTmp);
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u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
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u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; // 8dbm
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write_nic_byte(dev, OFDM_TXAGC, u1bTmp);
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}
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}
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else if((priv->UndecoratedSmoothedSS < HiPwrLowerTh) &&
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(!priv->bCurCCKPkt || priv->CurCCKRSSI < RSSIHiPwrLowerTh))
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{
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// printk("DoTxHighPower() - lower Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrLowerTh );
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if(priv->bToUpdateTxPwr)
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{
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priv->bToUpdateTxPwr = false;
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//SD3 required.
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u1bTmp= read_nic_byte(dev, CCK_TXAGC);
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if(u1bTmp < CckTxPwrIdx)
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{
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//u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); // 8dbm
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//write_nic_byte(dev, CCK_TXAGC, u1bTmp);
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write_nic_byte(dev, CCK_TXAGC, CckTxPwrIdx);
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}
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u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
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if(u1bTmp < OfdmTxPwrIdx)
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{
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//u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); // 8dbm
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//write_nic_byte(dev, OFDM_TXAGC, u1bTmp);
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write_nic_byte(dev, OFDM_TXAGC, OfdmTxPwrIdx);
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}
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}
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}
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//printk("<---- DoTxHighPower()\n");
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}
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//
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// Description:
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// Callback function of UpdateTxPowerWorkItem.
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// Because of some event happend, e.g. CCX TPC, High Power Mechanism,
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// We update Tx power of current channel again.
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//
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void rtl8180_tx_pw_wq (struct work_struct *work)
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{
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// struct r8180_priv *priv = container_of(work, struct r8180_priv, watch_dog_wq);
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// struct ieee80211_device * ieee = (struct ieee80211_device*)
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// container_of(work, struct ieee80211_device, watch_dog_wq);
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2009-04-03 15:46:49 +00:00
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struct delayed_work *dwork = to_delayed_work(work);
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2009-03-03 22:38:09 +00:00
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struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,tx_pw_wq);
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struct net_device *dev = ieee->dev;
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// printk("----> UpdateTxPowerWorkItemCallback()\n");
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DoTxHighPower(dev);
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// printk("<---- UpdateTxPowerWorkItemCallback()\n");
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}
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//
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// Description:
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// Return TRUE if we shall perform DIG Mecahnism, FALSE otherwise.
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//
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bool
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CheckDig(
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struct net_device *dev
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)
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{
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struct r8180_priv *priv = ieee80211_priv(dev);
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struct ieee80211_device *ieee = priv->ieee80211;
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if(!priv->bDigMechanism)
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return false;
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if(ieee->state != IEEE80211_LINKED)
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return false;
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//if(priv->CurrentOperaRate < 36) // Schedule Dig under all OFDM rates. By Bruce, 2007-06-01.
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if((priv->ieee80211->rate/5) < 36) // Schedule Dig under all OFDM rates. By Bruce, 2007-06-01.
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return false;
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return true;
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}
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//
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// Description:
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// Implementation of DIG for Zebra and Zebra2.
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//
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void
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DIG_Zebra(
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struct net_device *dev
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)
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{
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struct r8180_priv *priv = ieee80211_priv(dev);
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u16 CCKFalseAlarm, OFDMFalseAlarm;
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u16 OfdmFA1, OfdmFA2;
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int InitialGainStep = 7; // The number of initial gain stages.
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int LowestGainStage = 4; // The capable lowest stage of performing dig workitem.
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u32 AwakePeriodIn2Sec=0;
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//printk("---------> DIG_Zebra()\n");
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CCKFalseAlarm = (u16)(priv->FalseAlarmRegValue & 0x0000ffff);
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OFDMFalseAlarm = (u16)((priv->FalseAlarmRegValue >> 16) & 0x0000ffff);
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OfdmFA1 = 0x15;
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OfdmFA2 = ((u16)(priv->RegDigOfdmFaUpTh)) << 8;
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// printk("DIG**********CCK False Alarm: %#X \n",CCKFalseAlarm);
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// printk("DIG**********OFDM False Alarm: %#X \n",OFDMFalseAlarm);
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// The number of initial gain steps is different, by Bruce, 2007-04-13.
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if (priv->InitialGain == 0 ) //autoDIG
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{ // Advised from SD3 DZ
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priv->InitialGain = 4; // In 87B, m74dBm means State 4 (m82dBm)
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}
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{ // Advised from SD3 DZ
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OfdmFA1 = 0x20;
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}
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#if 1 //lzm reserved 080826
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AwakePeriodIn2Sec = (2000-priv ->DozePeriodInPast2Sec);
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//printk("&&& DozePeriod=%d AwakePeriod=%d\n", priv->DozePeriodInPast2Sec, AwakePeriodIn2Sec);
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priv ->DozePeriodInPast2Sec=0;
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if(AwakePeriodIn2Sec)
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{
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//RT_TRACE(COMP_DIG, DBG_TRACE, ("DIG: AwakePeriodIn2Sec(%d) - FATh(0x%X , 0x%X) ->",AwakePeriodIn2Sec, OfdmFA1, OfdmFA2));
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// adjuest DIG threshold.
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OfdmFA1 = (u16)((OfdmFA1*AwakePeriodIn2Sec) / 2000) ;
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OfdmFA2 = (u16)((OfdmFA2*AwakePeriodIn2Sec) / 2000) ;
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//RT_TRACE(COMP_DIG, DBG_TRACE, ("( 0x%X , 0x%X)\n", OfdmFA1, OfdmFA2));
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}
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else
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{
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;//RT_TRACE(COMP_DIG, DBG_WARNING, ("ERROR!! AwakePeriodIn2Sec should not be ZERO!!\n"));
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}
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#endif
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InitialGainStep = 8;
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LowestGainStage = priv->RegBModeGainStage; // Lowest gain stage.
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if (OFDMFalseAlarm > OfdmFA1)
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{
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if (OFDMFalseAlarm > OfdmFA2)
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{
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priv->DIG_NumberFallbackVote++;
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if (priv->DIG_NumberFallbackVote >1)
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{
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//serious OFDM False Alarm, need fallback
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if (priv->InitialGain < InitialGainStep)
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{
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priv->InitialGainBackUp= priv->InitialGain;
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priv->InitialGain = (priv->InitialGain + 1);
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// printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2);
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// printk("DIG+++++++ fallback OFDM:%d \n", priv->InitialGain);
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UpdateInitialGain(dev);
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}
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priv->DIG_NumberFallbackVote = 0;
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priv->DIG_NumberUpgradeVote=0;
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}
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}
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else
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{
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if (priv->DIG_NumberFallbackVote)
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priv->DIG_NumberFallbackVote--;
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}
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priv->DIG_NumberUpgradeVote=0;
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}
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else
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{
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if (priv->DIG_NumberFallbackVote)
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priv->DIG_NumberFallbackVote--;
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priv->DIG_NumberUpgradeVote++;
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if (priv->DIG_NumberUpgradeVote>9)
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{
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if (priv->InitialGain > LowestGainStage) // In 87B, m78dBm means State 4 (m864dBm)
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{
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priv->InitialGainBackUp= priv->InitialGain;
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priv->InitialGain = (priv->InitialGain - 1);
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// printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2);
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// printk("DIG--------- Upgrade OFDM:%d \n", priv->InitialGain);
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UpdateInitialGain(dev);
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}
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priv->DIG_NumberFallbackVote = 0;
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priv->DIG_NumberUpgradeVote=0;
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}
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}
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// printk("DIG+++++++ OFDM:%d\n", priv->InitialGain);
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//printk("<--------- DIG_Zebra()\n");
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}
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//
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// Description:
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// Dispatch DIG implementation according to RF.
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//
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void
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2010-02-15 04:04:56 +00:00
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DynamicInitGain(struct net_device *dev)
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2009-03-03 22:38:09 +00:00
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{
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2010-02-15 04:04:56 +00:00
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DIG_Zebra(dev);
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2009-03-03 22:38:09 +00:00
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}
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void rtl8180_hw_dig_wq (struct work_struct *work)
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{
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2009-04-03 15:46:49 +00:00
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struct delayed_work *dwork = to_delayed_work(work);
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2009-03-03 22:38:09 +00:00
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struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,hw_dig_wq);
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struct net_device *dev = ieee->dev;
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struct r8180_priv *priv = ieee80211_priv(dev);
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// Read CCK and OFDM False Alarm.
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priv->FalseAlarmRegValue = read_nic_dword(dev, CCK_FALSE_ALARM);
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// Adjust Initial Gain dynamically.
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DynamicInitGain(dev);
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}
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int
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IncludedInSupportedRates(
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struct r8180_priv *priv,
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u8 TxRate )
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{
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u8 rate_len;
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u8 rate_ex_len;
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u8 RateMask = 0x7F;
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u8 idx;
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unsigned short Found = 0;
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u8 NaiveTxRate = TxRate&RateMask;
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rate_len = priv->ieee80211->current_network.rates_len;
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rate_ex_len = priv->ieee80211->current_network.rates_ex_len;
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for( idx=0; idx< rate_len; idx++ )
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{
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if( (priv->ieee80211->current_network.rates[idx] & RateMask) == NaiveTxRate )
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{
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Found = 1;
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goto found_rate;
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}
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}
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for( idx=0; idx< rate_ex_len; idx++ )
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{
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if( (priv->ieee80211->current_network.rates_ex[idx] & RateMask) == NaiveTxRate )
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{
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Found = 1;
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goto found_rate;
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}
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}
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return Found;
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found_rate:
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return Found;
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}
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//
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// Description:
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|
|
// 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.
|
|
|
|
switch(rate)
|
|
|
|
{
|
|
|
|
case 108: // Up to 54Mbps.
|
|
|
|
UpRate = 108;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 96: // Up to 54Mbps.
|
|
|
|
UpRate = 108;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 72: // Up to 48Mbps.
|
|
|
|
UpRate = 96;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 48: // Up to 36Mbps.
|
|
|
|
UpRate = 72;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 36: // Up to 24Mbps.
|
|
|
|
UpRate = 48;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 22: // Up to 18Mbps.
|
|
|
|
UpRate = 36;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 11: // Up to 11Mbps.
|
|
|
|
UpRate = 22;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 4: // Up to 5.5Mbps.
|
|
|
|
UpRate = 11;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2: // Up to 2Mbps.
|
|
|
|
UpRate = 4;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
printk("GetUpgradeTxRate(): Input Tx Rate(%d) is undefined!\n", rate);
|
|
|
|
return rate;
|
|
|
|
}
|
|
|
|
// Check if the rate is valid.
|
|
|
|
if(IncludedInSupportedRates(priv, UpRate))
|
|
|
|
{
|
|
|
|
// 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);
|
|
|
|
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.
|
|
|
|
//
|
|
|
|
u8
|
|
|
|
GetDegradeTxRate(
|
|
|
|
struct net_device *dev,
|
|
|
|
u8 rate
|
|
|
|
)
|
|
|
|
{
|
|
|
|
struct r8180_priv *priv = ieee80211_priv(dev);
|
|
|
|
u8 DownRate;
|
|
|
|
|
|
|
|
// Upgrade 1 degree.
|
|
|
|
switch(rate)
|
|
|
|
{
|
|
|
|
case 108: // Down to 48Mbps.
|
|
|
|
DownRate = 96;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 96: // Down to 36Mbps.
|
|
|
|
DownRate = 72;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 72: // Down to 24Mbps.
|
|
|
|
DownRate = 48;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 48: // Down to 18Mbps.
|
|
|
|
DownRate = 36;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 36: // Down to 11Mbps.
|
|
|
|
DownRate = 22;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 22: // Down to 5.5Mbps.
|
|
|
|
DownRate = 11;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 11: // Down to 2Mbps.
|
|
|
|
DownRate = 4;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 4: // Down to 1Mbps.
|
|
|
|
DownRate = 2;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2: // Down to 1Mbps.
|
|
|
|
DownRate = 2;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
printk("GetDegradeTxRate(): Input Tx Rate(%d) is undefined!\n", rate);
|
|
|
|
return rate;
|
|
|
|
}
|
|
|
|
// Check if the rate is valid.
|
|
|
|
if(IncludedInSupportedRates(priv, DownRate))
|
|
|
|
{
|
|
|
|
// 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);
|
|
|
|
return rate;
|
|
|
|
}
|
|
|
|
return rate;
|
|
|
|
}
|
|
|
|
//
|
|
|
|
// Helper function to determine if specified data rate is
|
|
|
|
// CCK rate.
|
|
|
|
// 2005.01.25, by rcnjko.
|
|
|
|
//
|
|
|
|
bool
|
|
|
|
MgntIsCckRate(
|
|
|
|
u16 rate
|
|
|
|
)
|
|
|
|
{
|
|
|
|
bool bReturn = false;
|
|
|
|
|
|
|
|
if((rate <= 22) && (rate != 12) && (rate != 18))
|
|
|
|
{
|
|
|
|
bReturn = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return bReturn;
|
|
|
|
}
|
|
|
|
//
|
|
|
|
// 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;
|
|
|
|
|
|
|
|
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
|
|
|
|
|
|
|
|
//printk("TxPwrTracking87SE(): CurrentThermal(%d)\n", CurrentThermal);
|
|
|
|
|
|
|
|
if( CurrentThermal != priv->ThermalMeter)
|
|
|
|
{
|
|
|
|
// printk("TxPwrTracking87SE(): Thermal meter changed!!!\n");
|
|
|
|
|
|
|
|
// 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.
|
|
|
|
CckTxPwrIdx += (CurrentThermal - priv->ThermalMeter)*2;
|
|
|
|
OfdmTxPwrIdx += (CurrentThermal - priv->ThermalMeter)*2;
|
|
|
|
|
|
|
|
if(CckTxPwrIdx >35)
|
|
|
|
CckTxPwrIdx = 35; // Force TxPower to maximal index.
|
|
|
|
if(OfdmTxPwrIdx >35)
|
|
|
|
OfdmTxPwrIdx = 35;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{ // lower thermal meter.
|
|
|
|
CckTxPwrIdx -= (priv->ThermalMeter - CurrentThermal)*2;
|
|
|
|
OfdmTxPwrIdx -= (priv->ThermalMeter - CurrentThermal)*2;
|
|
|
|
|
|
|
|
if(CckTxPwrIdx <0)
|
|
|
|
CckTxPwrIdx = 0;
|
|
|
|
if(OfdmTxPwrIdx <0)
|
|
|
|
OfdmTxPwrIdx = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Update TxPower level on CCK and OFDM resp.
|
|
|
|
priv->chtxpwr[Idx] = CckTxPwrIdx;
|
|
|
|
priv->chtxpwr_ofdm[Idx] = OfdmTxPwrIdx;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Update TxPower level immediately.
|
|
|
|
rtl8225z2_SetTXPowerLevel(dev, priv->ieee80211->current_network.channel);
|
|
|
|
}
|
|
|
|
priv->ThermalMeter = CurrentThermal;
|
|
|
|
}
|
|
|
|
void
|
|
|
|
StaRateAdaptive87SE(
|
|
|
|
struct net_device *dev
|
|
|
|
)
|
|
|
|
{
|
|
|
|
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
|
|
|
|
unsigned long CurrTxokCnt;
|
|
|
|
u16 CurrRetryCnt;
|
|
|
|
u16 CurrRetryRate;
|
|
|
|
//u16 i,idx;
|
|
|
|
unsigned long CurrRxokCnt;
|
|
|
|
bool bTryUp = false;
|
|
|
|
bool bTryDown = false;
|
|
|
|
u8 TryUpTh = 1;
|
|
|
|
u8 TryDownTh = 2;
|
|
|
|
u32 TxThroughput;
|
|
|
|
long CurrSignalStrength;
|
|
|
|
bool bUpdateInitialGain = false;
|
|
|
|
u8 u1bOfdm=0, u1bCck = 0;
|
|
|
|
char OfdmTxPwrIdx, CckTxPwrIdx;
|
|
|
|
|
|
|
|
priv->RateAdaptivePeriod= RATE_ADAPTIVE_TIMER_PERIOD;
|
|
|
|
|
|
|
|
|
|
|
|
CurrRetryCnt = priv->CurrRetryCnt;
|
|
|
|
CurrTxokCnt = priv->NumTxOkTotal - priv->LastTxokCnt;
|
|
|
|
CurrRxokCnt = priv->ieee80211->NumRxOkTotal - priv->LastRxokCnt;
|
|
|
|
CurrSignalStrength = priv->Stats_RecvSignalPower;
|
|
|
|
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.
|
|
|
|
if (CurrTxokCnt>0)
|
|
|
|
{
|
|
|
|
CurrRetryRate = (u16)(CurrRetryCnt*100/CurrTxokCnt);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{ // 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);
|
|
|
|
|
|
|
|
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?
|
|
|
|
if (CurrRetryRate==0 && CurrTxokCnt == 0)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
//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
|
|
|
|
if (priv->TryupingCountNoData>30)
|
|
|
|
{
|
|
|
|
priv->TryupingCountNoData = 0;
|
|
|
|
priv->CurrentOperaRate = GetUpgradeTxRate(dev, priv->CurrentOperaRate);
|
|
|
|
// 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).
|
|
|
|
//
|
|
|
|
if(priv->CurrentOperaRate == 22 || priv->CurrentOperaRate == 72)
|
|
|
|
{
|
|
|
|
TryUpTh += 9;
|
|
|
|
}
|
|
|
|
//
|
|
|
|
// Let these rates down more difficult.
|
|
|
|
//
|
|
|
|
if(MgntIsCckRate(priv->CurrentOperaRate) || priv->CurrentOperaRate == 36)
|
|
|
|
{
|
|
|
|
TryDownTh += 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
//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.
|
|
|
|
if ( (CurrRetryRate > 25) && TxThroughput < priv->LastTxThroughput)
|
|
|
|
{
|
|
|
|
//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);
|
|
|
|
}
|
|
|
|
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.
|
|
|
|
if(priv->CurrentOperaRate != priv->ieee80211->current_network.HighestOperaRate )
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
// Upgrade Tx Rate directly.
|
|
|
|
priv->TryupingCount += TryUpTh;
|
|
|
|
}
|
|
|
|
// 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.
|
|
|
|
//
|
|
|
|
bTryDown = true;
|
|
|
|
// 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);
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 108 )
|
|
|
|
{
|
|
|
|
//2For 54Mbps
|
|
|
|
// Air Link
|
|
|
|
if ( (CurrRetryRate>26)&&(priv->LastRetryRate>25))
|
|
|
|
// if ( (CurrRetryRate>40)&&(priv->LastRetryRate>39))
|
|
|
|
{
|
|
|
|
//Down to rate 48Mbps.
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
// Cable Link
|
|
|
|
else if ( (CurrRetryRate>17)&&(priv->LastRetryRate>16) && (CurrSignalStrength > -72))
|
|
|
|
// else if ( (CurrRetryRate>17)&&(priv->LastRetryRate>16) && (CurrSignalStrength > -72))
|
|
|
|
{
|
|
|
|
//Down to rate 48Mbps.
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(bTryDown && (CurrSignalStrength < -75)) //cable link
|
|
|
|
{
|
|
|
|
priv->TryDownCountLowData += TryDownTh;
|
|
|
|
}
|
|
|
|
//printk("case4---54M \n");
|
|
|
|
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 96 )
|
|
|
|
{
|
|
|
|
//2For 48Mbps
|
|
|
|
//Air Link
|
|
|
|
if ( ((CurrRetryRate>48) && (priv->LastRetryRate>47)))
|
|
|
|
// if ( ((CurrRetryRate>65) && (priv->LastRetryRate>64)))
|
|
|
|
|
|
|
|
{
|
|
|
|
//Down to rate 36Mbps.
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
//Cable Link
|
|
|
|
else if ( ((CurrRetryRate>21) && (priv->LastRetryRate>20)) && (CurrSignalStrength > -74))
|
|
|
|
{
|
|
|
|
//Down to rate 36Mbps.
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
else if((CurrRetryRate> (priv->LastRetryRate + 50 )) && (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) )
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(bTryDown && (CurrSignalStrength < -75))
|
|
|
|
{
|
|
|
|
priv->TryDownCountLowData += TryDownTh;
|
|
|
|
}
|
|
|
|
//printk("case5---48M \n");
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 72 )
|
|
|
|
{
|
|
|
|
//2For 36Mbps
|
|
|
|
if ( (CurrRetryRate>43) && (priv->LastRetryRate>41))
|
|
|
|
// 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 ))
|
|
|
|
{
|
|
|
|
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))
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(bTryDown && (CurrSignalStrength < -80))
|
|
|
|
{
|
|
|
|
priv->TryDownCountLowData += TryDownTh;
|
|
|
|
}
|
|
|
|
//printk("case6---36M \n");
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 48 )
|
|
|
|
{
|
|
|
|
//2For 24Mbps
|
|
|
|
// Air Link
|
|
|
|
if ( ((CurrRetryRate>63) && (priv->LastRetryRate>62)))
|
|
|
|
// if ( ((CurrRetryRate>83) && (priv->LastRetryRate>82)))
|
|
|
|
{
|
|
|
|
//Down to rate 18Mbps.
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
//Cable Link
|
|
|
|
else if ( ((CurrRetryRate>33) && (priv->LastRetryRate>32)) && (CurrSignalStrength > -82) )
|
|
|
|
// 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 ))
|
|
|
|
|
|
|
|
{
|
|
|
|
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))
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(bTryDown && (CurrSignalStrength < -82))
|
|
|
|
{
|
|
|
|
priv->TryDownCountLowData += TryDownTh;
|
|
|
|
}
|
|
|
|
//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
|
|
|
|
if ( ((CurrRetryRate>85) && (priv->LastRetryRate>86)))
|
|
|
|
// if ( ((CurrRetryRate>115) && (priv->LastRetryRate>116)))
|
|
|
|
{
|
|
|
|
//Down to rate 11Mbps.
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
//[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 ))
|
|
|
|
{
|
|
|
|
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))
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
//printk("case8---18M \n");
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 22 )
|
|
|
|
{
|
|
|
|
//2For 11Mbps
|
|
|
|
if (CurrRetryRate>95)
|
|
|
|
// 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) )
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
//printk("case9---11M \n");
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 11 )
|
|
|
|
{
|
|
|
|
//2For 5.5Mbps
|
|
|
|
if (CurrRetryRate>149)
|
|
|
|
// if (CurrRetryRate>189)
|
|
|
|
{
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
else if ( (CurrRetryRate<60) && (priv->LastRetryRate < 65))
|
|
|
|
// else if ( (CurrRetryRate<80) && (priv->LastRetryRate < 85))
|
|
|
|
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
//printk("case10---5.5M \n");
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 4 )
|
|
|
|
{
|
|
|
|
//2For 2 Mbps
|
|
|
|
if((CurrRetryRate>99) && (priv->LastRetryRate>99))
|
|
|
|
// if((CurrRetryRate>199) && (priv->LastRetryRate>199))
|
|
|
|
{
|
|
|
|
bTryDown = true;
|
|
|
|
}
|
|
|
|
else if ( (CurrRetryRate < 65) && (priv->LastRetryRate < 70))
|
|
|
|
// else if ( (CurrRetryRate < 85) && (priv->LastRetryRate < 90))
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
//printk("case11---2M \n");
|
|
|
|
}
|
|
|
|
else if ( priv->CurrentOperaRate == 2 )
|
|
|
|
{
|
|
|
|
//2For 1 Mbps
|
|
|
|
if( (CurrRetryRate<70) && (priv->LastRetryRate<75))
|
|
|
|
// if( (CurrRetryRate<90) && (priv->LastRetryRate<95))
|
|
|
|
{
|
|
|
|
bTryUp = true;
|
|
|
|
}
|
|
|
|
//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.
|
|
|
|
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");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//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);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// 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 transfering 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.
|
|
|
|
//
|
|
|
|
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.
|
|
|
|
|
|
|
|
priv->CurrentOperaRate = GetUpgradeTxRate(dev, 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
|
|
|
|
if(priv->CurrentOperaRate ==36)
|
|
|
|
{
|
|
|
|
priv->bUpdateARFR=true;
|
|
|
|
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");
|
|
|
|
}
|
|
|
|
|
|
|
|
// Update Fail Tx rate and count.
|
|
|
|
if(priv->LastFailTxRate != priv->CurrentOperaRate)
|
|
|
|
{
|
|
|
|
priv->LastFailTxRate = priv->CurrentOperaRate;
|
|
|
|
priv->FailTxRateCount = 0;
|
|
|
|
priv->LastFailTxRateSS = -200; // Set lowest power.
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if(priv->TryupingCount > 0)
|
|
|
|
priv->TryupingCount --;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(bTryDown)
|
|
|
|
{
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
|
|
|
//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.
|
|
|
|
if(priv->LastFailTxRate == priv->CurrentOperaRate)
|
|
|
|
{
|
|
|
|
priv->FailTxRateCount ++;
|
|
|
|
// Record the Tx fail rate signal strength.
|
|
|
|
if(CurrSignalStrength > priv->LastFailTxRateSS)
|
|
|
|
{
|
|
|
|
priv->LastFailTxRateSS = CurrSignalStrength;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
priv->LastFailTxRate = priv->CurrentOperaRate;
|
|
|
|
priv->FailTxRateCount = 1;
|
|
|
|
priv->LastFailTxRateSS = CurrSignalStrength;
|
|
|
|
}
|
|
|
|
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
|
|
|
|
if( (CurrSignalStrength < -80) && (priv->CurrentOperaRate > 72 ))
|
|
|
|
{
|
|
|
|
priv->CurrentOperaRate = 72;
|
|
|
|
// printk("DN: weak signal strength (%d), degrade to 36Mbps\n", CurrSignalStrength);
|
|
|
|
}
|
|
|
|
|
|
|
|
//[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");
|
|
|
|
}
|
|
|
|
else if(priv->bUpdateARFR)
|
|
|
|
{
|
|
|
|
priv->bUpdateARFR=false;
|
|
|
|
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.
|
|
|
|
//
|
|
|
|
if(MgntIsCckRate(priv->CurrentOperaRate))
|
|
|
|
{
|
|
|
|
bUpdateInitialGain = true;
|
|
|
|
}
|
|
|
|
// 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.
|
|
|
|
if(priv->FailTxRateCount >= 0x15 ||
|
|
|
|
(!bTryUp && !bTryDown && priv->TryDownCountLowData == 0 && priv->TryupingCount && priv->FailTxRateCount > 0x6))
|
|
|
|
{
|
|
|
|
priv->FailTxRateCount --;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// case 2: enter high power
|
|
|
|
else if(u1bCck < CckTxPwrIdx)
|
|
|
|
{
|
|
|
|
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));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
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
|
|
|
|
if(u1bCck == CckTxPwrIdx )
|
|
|
|
{
|
|
|
|
priv->bEnhanceTxPwr= false;
|
|
|
|
write_nic_byte(dev, OFDM_TXAGC, OfdmTxPwrIdx);
|
|
|
|
//printk("Recover OFDM_TXAGC : ===== u1bOfdm= 0x%x\n", OfdmTxPwrIdx);
|
|
|
|
}
|
|
|
|
// 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));
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// 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(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.
|
|
|
|
priv->InitialGain = priv->RegBModeGainStage;
|
|
|
|
}
|
|
|
|
else if(priv->InitialGain > priv->RegBModeGainStage + 1)
|
|
|
|
{
|
|
|
|
priv->InitialGain -= 2;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
priv->InitialGain --;
|
|
|
|
}
|
|
|
|
printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n",priv->InitialGain, priv->CurrentOperaRate);
|
|
|
|
UpdateInitialGain(dev);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else // OFDM
|
|
|
|
{
|
|
|
|
if(priv->InitialGain < 4)
|
|
|
|
{
|
|
|
|
priv->InitialGainBackUp= priv->InitialGain;
|
|
|
|
|
|
|
|
priv->InitialGain ++;
|
|
|
|
printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n",priv->InitialGain, priv->CurrentOperaRate);
|
|
|
|
UpdateInitialGain(dev);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//Record the related info
|
|
|
|
priv->LastRetryRate = CurrRetryRate;
|
|
|
|
priv->LastTxThroughput = TxThroughput;
|
|
|
|
priv->ieee80211->rate = priv->CurrentOperaRate * 5;
|
|
|
|
}
|
2009-06-13 16:30:28 +00:00
|
|
|
|
2009-03-03 22:38:09 +00:00
|
|
|
void rtl8180_rate_adapter(struct work_struct * work)
|
|
|
|
{
|
2009-04-03 15:46:49 +00:00
|
|
|
struct delayed_work *dwork = to_delayed_work(work);
|
2009-03-03 22:38:09 +00:00
|
|
|
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");
|
|
|
|
StaRateAdaptive87SE(dev);
|
|
|
|
// 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");
|
|
|
|
if(!priv->up)
|
|
|
|
{
|
|
|
|
// 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");
|
|
|
|
queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->rate_adapter_wq);
|
|
|
|
// StaRateAdaptive87SE((struct net_device *)data);
|
|
|
|
}
|
|
|
|
priv->rateadapter_timer.expires = jiffies + MSECS(priv->RateAdaptivePeriod);
|
|
|
|
add_timer(&priv->rateadapter_timer);
|
|
|
|
//DMESG("<----timer_rate_adaptive()\n");
|
|
|
|
}
|
|
|
|
//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);
|
|
|
|
|
|
|
|
priv->AdRxOkCnt++;
|
|
|
|
|
|
|
|
if( priv->AdRxSignalStrength != -1)
|
|
|
|
{
|
|
|
|
priv->AdRxSignalStrength = ((priv->AdRxSignalStrength*7) + (SignalStrength*3)) / 10;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{ // Initialization case.
|
|
|
|
priv->AdRxSignalStrength = SignalStrength;
|
|
|
|
}
|
|
|
|
//{+by amy 080312
|
|
|
|
if( priv->LastRxPktAntenna ) //Main antenna.
|
|
|
|
priv->AdMainAntennaRxOkCnt++;
|
|
|
|
else // Aux antenna.
|
|
|
|
priv->AdAuxAntennaRxOkCnt++;
|
|
|
|
//+by amy 080312
|
|
|
|
// printk("-SwAntennaDiversityRxOk8185: AdRxOkCnt: %d AdRxSignalStrength: %d\n", priv->AdRxOkCnt, priv->AdRxSignalStrength);
|
|
|
|
}
|
|
|
|
//
|
|
|
|
// 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);
|
|
|
|
|
|
|
|
switch(u1bAntennaIndex)
|
|
|
|
{
|
|
|
|
case 0:
|
2010-02-15 04:04:56 +00:00
|
|
|
/* Mac register, main antenna */
|
|
|
|
write_nic_byte(dev, ANTSEL, 0x03);
|
|
|
|
/* base band */
|
|
|
|
write_phy_cck(dev, 0x11, 0x9b); /* Config CCK RX antenna. */
|
|
|
|
write_phy_ofdm(dev, 0x0d, 0x5c); /* Config OFDM RX antenna. */
|
2009-03-03 22:38:09 +00:00
|
|
|
|
2010-02-15 04:04:56 +00:00
|
|
|
bAntennaSwitched = true;
|
2009-03-03 22:38:09 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case 1:
|
2010-02-15 04:04:56 +00:00
|
|
|
/* Mac register, aux antenna */
|
|
|
|
write_nic_byte(dev, ANTSEL, 0x00);
|
|
|
|
/* base band */
|
|
|
|
write_phy_cck(dev, 0x11, 0xbb); /* Config CCK RX antenna. */
|
|
|
|
write_phy_ofdm(dev, 0x0d, 0x54); /* Config OFDM RX antenna. */
|
|
|
|
|
|
|
|
bAntennaSwitched = true;
|
|
|
|
|
2009-03-03 22:38:09 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2009-11-14 15:09:06 +00:00
|
|
|
printk("SetAntenna8185: unknown u1bAntennaIndex(%d)\n", u1bAntennaIndex);
|
2009-03-03 22:38:09 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(bAntennaSwitched)
|
|
|
|
{
|
|
|
|
priv->CurrAntennaIndex = u1bAntennaIndex;
|
|
|
|
}
|
|
|
|
|
|
|
|
// printk("-SetAntenna8185(): return (%#X)\n", bAntennaSwitched);
|
|
|
|
|
|
|
|
return bAntennaSwitched;
|
|
|
|
}
|
|
|
|
//
|
|
|
|
// Description:
|
|
|
|
// Toggle Antenna switch.
|
|
|
|
//
|
|
|
|
bool
|
|
|
|
SwitchAntenna(
|
|
|
|
struct net_device *dev
|
|
|
|
)
|
|
|
|
{
|
|
|
|
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
|
|
|
|
|
|
|
|
bool bResult;
|
|
|
|
|
|
|
|
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
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
bResult = SetAntenna8185(dev, 0);
|
|
|
|
//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.
|
|
|
|
//
|
|
|
|
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
|
|
|
|
if(bSwCheckSS)
|
|
|
|
{
|
|
|
|
priv->AdTickCount++;
|
|
|
|
|
|
|
|
printk("(1) AdTickCount: %d, AdCheckPeriod: %d\n",
|
|
|
|
priv->AdTickCount, priv->AdCheckPeriod);
|
|
|
|
printk("(2) AdRxSignalStrength: %ld, AdRxSsThreshold: %ld\n",
|
|
|
|
priv->AdRxSignalStrength, priv->AdRxSsThreshold);
|
|
|
|
}
|
|
|
|
// priv->AdTickCount++;//-by amy 080312
|
|
|
|
|
|
|
|
// Case 1. No Link.
|
|
|
|
if(priv->ieee80211->state != IEEE80211_LINKED)
|
|
|
|
{
|
|
|
|
// 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..
|
|
|
|
SwitchAntenna(dev);
|
|
|
|
}
|
|
|
|
// Case 2. Linked but no packet received.
|
|
|
|
else if(priv->AdRxOkCnt == 0)
|
|
|
|
{
|
|
|
|
// 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.
|
|
|
|
else if(priv->bAdSwitchedChecking == true)
|
|
|
|
{
|
|
|
|
// printk("SwAntennaDiversity(): Case 3. Evaluate last antenna switch action.\n");
|
|
|
|
|
|
|
|
priv->bAdSwitchedChecking = false;
|
|
|
|
|
2009-11-14 15:09:06 +00:00
|
|
|
// Adjust Rx signal strength threshold.
|
2009-03-03 22:38:09 +00:00
|
|
|
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.
|
|
|
|
priv->AdCheckPeriod *= 2;
|
|
|
|
//by amy 080312
|
|
|
|
// Increase Antenna Diversity checking period.
|
|
|
|
if(priv->AdCheckPeriod > priv->AdMaxCheckPeriod)
|
|
|
|
priv->AdCheckPeriod = priv->AdMaxCheckPeriod;
|
|
|
|
|
|
|
|
// 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);
|
|
|
|
|
|
|
|
// Reset Antenna Diversity checking period to its min value.
|
|
|
|
priv->AdCheckPeriod = priv->AdMinCheckPeriod;
|
|
|
|
}
|
|
|
|
|
|
|
|
// 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");
|
|
|
|
|
|
|
|
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
|
|
|
|
if((priv->AdMainAntennaRxOkCnt < priv->AdAuxAntennaRxOkCnt)
|
|
|
|
&& (priv->CurrAntennaIndex == 0))
|
|
|
|
{ // 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);
|
|
|
|
|
|
|
|
// 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.
|
|
|
|
|
|
|
|
// printk("SwAntennaDiversity(): Aux antenna RxOK is poor, AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
|
|
|
|
// priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
|
|
|
|
|
|
|
|
// Switch to Main antenna.
|
|
|
|
SwitchAntenna(dev);
|
|
|
|
priv->bHWAdSwitched = true;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{// Default antenna is better.
|
|
|
|
|
|
|
|
// printk("SwAntennaDiversity(): Default antenna is better., AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
|
|
|
|
// priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
|
|
|
|
|
|
|
|
// 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.
|
|
|
|
//
|
|
|
|
if( (!priv->bHWAdSwitched) && (bSwCheckSS))
|
|
|
|
{
|
|
|
|
//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);
|
|
|
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
priv->bAdSwitchedChecking = false;
|
2009-11-14 15:09:06 +00:00
|
|
|
// Increase Rx signal strength threshold if necessary.
|
2009-03-03 22:38:09 +00:00
|
|
|
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
|
|
|
|
}
|
|
|
|
|
|
|
|
// Reduce Antenna Diversity checking period if possible.
|
|
|
|
if( priv->AdCheckPeriod > priv->AdMinCheckPeriod )
|
|
|
|
{
|
|
|
|
priv->AdCheckPeriod /= 2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//by amy 080312
|
|
|
|
// Reset antenna diversity Rx related statistics.
|
|
|
|
priv->AdRxOkCnt = 0;
|
|
|
|
priv->AdMainAntennaRxOkCnt = 0;
|
|
|
|
priv->AdAuxAntennaRxOkCnt = 0;
|
|
|
|
//by amy 080312
|
|
|
|
|
|
|
|
// priv->AdRxOkCnt = 0;//-by amy 080312
|
|
|
|
|
|
|
|
// printk("-SwAntennaDiversity()\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// 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);
|
|
|
|
|
|
|
|
if(!priv->bTxPowerTrack)
|
|
|
|
{
|
|
|
|
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(priv->bToUpdateTxPwr)
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
|
|
// 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");
|
|
|
|
|
|
|
|
//
|
|
|
|
// 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");
|
|
|
|
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"));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
SwAntennaDiversity(dev);
|
|
|
|
|
|
|
|
}while(false);
|
|
|
|
|
|
|
|
if(priv->up)
|
|
|
|
{
|
|
|
|
priv->SwAntennaDiversityTimer.expires = jiffies + MSECS(ANTENNA_DIVERSITY_TIMER_PERIOD);
|
|
|
|
add_timer(&priv->SwAntennaDiversityTimer);
|
|
|
|
}
|
|
|
|
|
|
|
|
//printk("-SwAntennaDiversityTimerCallback()\n");
|
|
|
|
}
|
|
|
|
|