2 #include "r8180_dm.h"
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3 #include "r8180_hw.h"
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4 #include "r8180_93cx6.h"
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9 // Return TRUE if we shall perform High Power Mecahnism, FALSE otherwise.
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12 #define RATE_ADAPTIVE_TIMER_PERIOD 300
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14 bool CheckHighPower(struct net_device *dev)
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16 struct r8180_priv *priv = ieee80211_priv(dev);
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17 struct ieee80211_device *ieee = priv->ieee80211;
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19 if(!priv->bRegHighPowerMechanism)
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24 if(ieee->state == IEEE80211_LINKED_SCANNING)
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34 // Update Tx power level if necessary.
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35 // See also DoRxHighPower() and SetTxPowerLevel8185() for reference.
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38 // The reason why we udpate Tx power level here instead of DoRxHighPower()
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39 // is the number of IO to change Tx power is much more than chane TR switch
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40 // and they are related to OFDM and MAC registers.
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41 // So, we don't want to update it so frequently in per-Rx packet base.
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45 struct net_device *dev
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48 struct r8180_priv *priv = ieee80211_priv(dev);
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49 u16 HiPwrUpperTh = 0;
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50 u16 HiPwrLowerTh = 0;
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51 u8 RSSIHiPwrUpperTh;
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52 u8 RSSIHiPwrLowerTh;
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54 char OfdmTxPwrIdx, CckTxPwrIdx;
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56 //printk("----> DoTxHighPower()\n");
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58 HiPwrUpperTh = priv->RegHiPwrUpperTh;
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59 HiPwrLowerTh = priv->RegHiPwrLowerTh;
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61 HiPwrUpperTh = HiPwrUpperTh * 10;
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62 HiPwrLowerTh = HiPwrLowerTh * 10;
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63 RSSIHiPwrUpperTh = priv->RegRSSIHiPwrUpperTh;
\r
64 RSSIHiPwrLowerTh = priv->RegRSSIHiPwrLowerTh;
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67 OfdmTxPwrIdx = priv->chtxpwr_ofdm[priv->ieee80211->current_network.channel];
\r
68 CckTxPwrIdx = priv->chtxpwr[priv->ieee80211->current_network.channel];
\r
70 // printk("DoTxHighPower() - UndecoratedSmoothedSS:%d, CurCCKRSSI = %d , bCurCCKPkt= %d \n", priv->UndecoratedSmoothedSS, priv->CurCCKRSSI, priv->bCurCCKPkt );
\r
72 if((priv->UndecoratedSmoothedSS > HiPwrUpperTh) ||
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73 (priv->bCurCCKPkt && (priv->CurCCKRSSI > RSSIHiPwrUpperTh)))
\r
75 // Stevenl suggested that degrade 8dbm in high power sate. 2007-12-04 Isaiah
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77 // printk("=====>DoTxHighPower() - High Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrUpperTh );
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78 priv->bToUpdateTxPwr = true;
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79 u1bTmp= read_nic_byte(dev, CCK_TXAGC);
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81 // If it never enter High Power.
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82 if( CckTxPwrIdx == u1bTmp)
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84 u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; // 8dbm
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85 write_nic_byte(dev, CCK_TXAGC, u1bTmp);
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87 u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
\r
88 u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0; // 8dbm
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89 write_nic_byte(dev, OFDM_TXAGC, u1bTmp);
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93 else if((priv->UndecoratedSmoothedSS < HiPwrLowerTh) &&
\r
94 (!priv->bCurCCKPkt || priv->CurCCKRSSI < RSSIHiPwrLowerTh))
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96 // printk("DoTxHighPower() - lower Power - UndecoratedSmoothedSS:%d, HiPwrUpperTh = %d \n", priv->UndecoratedSmoothedSS, HiPwrLowerTh );
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97 if(priv->bToUpdateTxPwr)
\r
99 priv->bToUpdateTxPwr = false;
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101 u1bTmp= read_nic_byte(dev, CCK_TXAGC);
\r
102 if(u1bTmp < CckTxPwrIdx)
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104 //u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); // 8dbm
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105 //write_nic_byte(dev, CCK_TXAGC, u1bTmp);
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106 write_nic_byte(dev, CCK_TXAGC, CckTxPwrIdx);
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109 u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
\r
110 if(u1bTmp < OfdmTxPwrIdx)
\r
112 //u1bTmp = ((u1bTmp+16) > 35) ? 35: (u1bTmp+16); // 8dbm
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113 //write_nic_byte(dev, OFDM_TXAGC, u1bTmp);
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114 write_nic_byte(dev, OFDM_TXAGC, OfdmTxPwrIdx);
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119 //printk("<---- DoTxHighPower()\n");
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125 // Callback function of UpdateTxPowerWorkItem.
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126 // Because of some event happend, e.g. CCX TPC, High Power Mechanism,
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127 // We update Tx power of current channel again.
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129 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
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130 void rtl8180_tx_pw_wq (struct work_struct *work)
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132 // struct r8180_priv *priv = container_of(work, struct r8180_priv, watch_dog_wq);
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133 // struct ieee80211_device * ieee = (struct ieee80211_device*)
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134 // container_of(work, struct ieee80211_device, watch_dog_wq);
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135 struct delayed_work *dwork = container_of(work,struct delayed_work,work);
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136 struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,tx_pw_wq);
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137 struct net_device *dev = ieee->dev;
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139 void rtl8180_tx_pw_wq(struct net_device *dev)
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141 // struct r8180_priv *priv = ieee80211_priv(dev);
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144 // printk("----> UpdateTxPowerWorkItemCallback()\n");
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146 DoTxHighPower(dev);
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148 // printk("<---- UpdateTxPowerWorkItemCallback()\n");
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154 // Return TRUE if we shall perform DIG Mecahnism, FALSE otherwise.
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158 struct net_device *dev
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161 struct r8180_priv *priv = ieee80211_priv(dev);
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162 struct ieee80211_device *ieee = priv->ieee80211;
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164 if(!priv->bDigMechanism)
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167 if(ieee->state != IEEE80211_LINKED)
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170 //if(priv->CurrentOperaRate < 36) // Schedule Dig under all OFDM rates. By Bruce, 2007-06-01.
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171 if((priv->ieee80211->rate/5) < 36) // Schedule Dig under all OFDM rates. By Bruce, 2007-06-01.
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177 // Implementation of DIG for Zebra and Zebra2.
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181 struct net_device *dev
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184 struct r8180_priv *priv = ieee80211_priv(dev);
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185 u16 CCKFalseAlarm, OFDMFalseAlarm;
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186 u16 OfdmFA1, OfdmFA2;
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187 int InitialGainStep = 7; // The number of initial gain stages.
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188 int LowestGainStage = 4; // The capable lowest stage of performing dig workitem.
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189 u32 AwakePeriodIn2Sec=0;
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191 //printk("---------> DIG_Zebra()\n");
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193 CCKFalseAlarm = (u16)(priv->FalseAlarmRegValue & 0x0000ffff);
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194 OFDMFalseAlarm = (u16)((priv->FalseAlarmRegValue >> 16) & 0x0000ffff);
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196 OfdmFA2 = ((u16)(priv->RegDigOfdmFaUpTh)) << 8;
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198 // printk("DIG**********CCK False Alarm: %#X \n",CCKFalseAlarm);
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199 // printk("DIG**********OFDM False Alarm: %#X \n",OFDMFalseAlarm);
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201 // The number of initial gain steps is different, by Bruce, 2007-04-13.
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202 if (priv->InitialGain == 0 ) //autoDIG
\r
203 { // Advised from SD3 DZ
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204 priv->InitialGain = 4; // In 87B, m74dBm means State 4 (m82dBm)
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206 //if(pHalData->VersionID != VERSION_8187B_B)
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207 { // Advised from SD3 DZ
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211 #if 1 //lzm reserved 080826
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212 AwakePeriodIn2Sec = (2000-priv ->DozePeriodInPast2Sec);
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213 //printk("&&& DozePeriod=%d AwakePeriod=%d\n", priv->DozePeriodInPast2Sec, AwakePeriodIn2Sec);
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214 priv ->DozePeriodInPast2Sec=0;
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216 if(AwakePeriodIn2Sec)
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218 //RT_TRACE(COMP_DIG, DBG_TRACE, ("DIG: AwakePeriodIn2Sec(%d) - FATh(0x%X , 0x%X) ->",AwakePeriodIn2Sec, OfdmFA1, OfdmFA2));
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219 // adjuest DIG threshold.
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220 OfdmFA1 = (u16)((OfdmFA1*AwakePeriodIn2Sec) / 2000) ;
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221 OfdmFA2 = (u16)((OfdmFA2*AwakePeriodIn2Sec) / 2000) ;
\r
222 //RT_TRACE(COMP_DIG, DBG_TRACE, ("( 0x%X , 0x%X)\n", OfdmFA1, OfdmFA2));
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226 ;//RT_TRACE(COMP_DIG, DBG_WARNING, ("ERROR!! AwakePeriodIn2Sec should not be ZERO!!\n"));
\r
230 InitialGainStep = 8;
\r
231 LowestGainStage = priv->RegBModeGainStage; // Lowest gain stage.
\r
233 if (OFDMFalseAlarm > OfdmFA1)
\r
235 if (OFDMFalseAlarm > OfdmFA2)
\r
237 priv->DIG_NumberFallbackVote++;
\r
238 if (priv->DIG_NumberFallbackVote >1)
\r
240 //serious OFDM False Alarm, need fallback
\r
241 if (priv->InitialGain < InitialGainStep)
\r
243 priv->InitialGainBackUp= priv->InitialGain;
\r
245 priv->InitialGain = (priv->InitialGain + 1);
\r
246 // printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2);
\r
247 // printk("DIG+++++++ fallback OFDM:%d \n", priv->InitialGain);
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248 UpdateInitialGain(dev);
\r
250 priv->DIG_NumberFallbackVote = 0;
\r
251 priv->DIG_NumberUpgradeVote=0;
\r
256 if (priv->DIG_NumberFallbackVote)
\r
257 priv->DIG_NumberFallbackVote--;
\r
259 priv->DIG_NumberUpgradeVote=0;
\r
263 if (priv->DIG_NumberFallbackVote)
\r
264 priv->DIG_NumberFallbackVote--;
\r
265 priv->DIG_NumberUpgradeVote++;
\r
267 if (priv->DIG_NumberUpgradeVote>9)
\r
269 if (priv->InitialGain > LowestGainStage) // In 87B, m78dBm means State 4 (m864dBm)
\r
271 priv->InitialGainBackUp= priv->InitialGain;
\r
273 priv->InitialGain = (priv->InitialGain - 1);
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274 // printk("DIG**********OFDM False Alarm: %#X, OfdmFA1: %#X, OfdmFA2: %#X\n", OFDMFalseAlarm, OfdmFA1, OfdmFA2);
\r
275 // printk("DIG--------- Upgrade OFDM:%d \n", priv->InitialGain);
\r
276 UpdateInitialGain(dev);
\r
278 priv->DIG_NumberFallbackVote = 0;
\r
279 priv->DIG_NumberUpgradeVote=0;
\r
283 // printk("DIG+++++++ OFDM:%d\n", priv->InitialGain);
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284 //printk("<--------- DIG_Zebra()\n");
\r
289 // Dispatch DIG implementation according to RF.
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293 struct net_device *dev
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296 struct r8180_priv *priv = ieee80211_priv(dev);
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298 switch(priv->rf_chip)
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300 case RF_ZEBRA2: // [AnnieWorkaround] For Zebra2, 2005-08-01.
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306 printk("DynamicInitGain(): unknown RFChipID(%d) !!!\n", priv->rf_chip);
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311 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
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312 void rtl8180_hw_dig_wq (struct work_struct *work)
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314 // struct r8180_priv *priv = container_of(work, struct r8180_priv, watch_dog_wq);
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315 // struct ieee80211_device * ieee = (struct ieee80211_device*)
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316 // container_of(work, struct ieee80211_device, watch_dog_wq);
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317 struct delayed_work *dwork = container_of(work,struct delayed_work,work);
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318 struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,hw_dig_wq);
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319 struct net_device *dev = ieee->dev;
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321 void rtl8180_hw_dig_wq(struct net_device *dev)
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325 struct r8180_priv *priv = ieee80211_priv(dev);
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327 // Read CCK and OFDM False Alarm.
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328 priv->FalseAlarmRegValue = read_nic_dword(dev, CCK_FALSE_ALARM);
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331 // Adjust Initial Gain dynamically.
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332 DynamicInitGain(dev);
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337 IncludedInSupportedRates(
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338 struct r8180_priv *priv,
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343 u8 RateMask = 0x7F;
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345 unsigned short Found = 0;
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346 u8 NaiveTxRate = TxRate&RateMask;
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348 rate_len = priv->ieee80211->current_network.rates_len;
\r
349 rate_ex_len = priv->ieee80211->current_network.rates_ex_len;
\r
350 for( idx=0; idx< rate_len; idx++ )
\r
352 if( (priv->ieee80211->current_network.rates[idx] & RateMask) == NaiveTxRate )
\r
358 for( idx=0; idx< rate_ex_len; idx++ )
\r
360 if( (priv->ieee80211->current_network.rates_ex[idx] & RateMask) == NaiveTxRate )
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373 // Get the Tx rate one degree up form the input rate in the supported rates.
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374 // Return the upgrade rate if it is successed, otherwise return the input rate.
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375 // By Bruce, 2007-06-05.
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379 struct net_device *dev,
\r
383 struct r8180_priv *priv = ieee80211_priv(dev);
\r
386 // Upgrade 1 degree.
\r
389 case 108: // Up to 54Mbps.
\r
393 case 96: // Up to 54Mbps.
\r
397 case 72: // Up to 48Mbps.
\r
401 case 48: // Up to 36Mbps.
\r
405 case 36: // Up to 24Mbps.
\r
409 case 22: // Up to 18Mbps.
\r
413 case 11: // Up to 11Mbps.
\r
417 case 4: // Up to 5.5Mbps.
\r
421 case 2: // Up to 2Mbps.
\r
426 printk("GetUpgradeTxRate(): Input Tx Rate(%d) is undefined!\n", rate);
\r
429 // Check if the rate is valid.
\r
430 if(IncludedInSupportedRates(priv, UpRate))
\r
432 // printk("GetUpgradeTxRate(): GetUpgrade Tx rate(%d) from %d !\n", UpRate, priv->CurrentOperaRate);
\r
437 //printk("GetUpgradeTxRate(): Tx rate (%d) is not in supported rates\n", UpRate);
\r
444 // Get the Tx rate one degree down form the input rate in the supported rates.
\r
445 // Return the degrade rate if it is successed, otherwise return the input rate.
\r
446 // By Bruce, 2007-06-05.
\r
450 struct net_device *dev,
\r
454 struct r8180_priv *priv = ieee80211_priv(dev);
\r
457 // Upgrade 1 degree.
\r
460 case 108: // Down to 48Mbps.
\r
464 case 96: // Down to 36Mbps.
\r
468 case 72: // Down to 24Mbps.
\r
472 case 48: // Down to 18Mbps.
\r
476 case 36: // Down to 11Mbps.
\r
480 case 22: // Down to 5.5Mbps.
\r
484 case 11: // Down to 2Mbps.
\r
488 case 4: // Down to 1Mbps.
\r
492 case 2: // Down to 1Mbps.
\r
497 printk("GetDegradeTxRate(): Input Tx Rate(%d) is undefined!\n", rate);
\r
500 // Check if the rate is valid.
\r
501 if(IncludedInSupportedRates(priv, DownRate))
\r
503 // printk("GetDegradeTxRate(): GetDegrade Tx rate(%d) from %d!\n", DownRate, priv->CurrentOperaRate);
\r
508 //printk("GetDegradeTxRate(): Tx rate (%d) is not in supported rates\n", DownRate);
\r
514 // Helper function to determine if specified data rate is
\r
516 // 2005.01.25, by rcnjko.
\r
523 bool bReturn = false;
\r
525 if((rate <= 22) && (rate != 12) && (rate != 18))
\r
532 #ifdef CONFIG_RTL818X_S
\r
535 // Tx Power tracking mechanism routine on 87SE.
\r
536 // Created by Roger, 2007.12.11.
\r
540 struct net_device *dev
\r
543 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
544 u8 tmpu1Byte, CurrentThermal, Idx;
\r
545 char CckTxPwrIdx, OfdmTxPwrIdx;
\r
548 tmpu1Byte = read_nic_byte(dev, EN_LPF_CAL);
\r
549 CurrentThermal = (tmpu1Byte & 0xf0)>>4; //[ 7:4]: thermal meter indication.
\r
550 CurrentThermal = (CurrentThermal>0x0c)? 0x0c:CurrentThermal;//lzm add 080826
\r
552 //printk("TxPwrTracking87SE(): CurrentThermal(%d)\n", CurrentThermal);
\r
554 if( CurrentThermal != priv->ThermalMeter)
\r
556 // printk("TxPwrTracking87SE(): Thermal meter changed!!!\n");
\r
558 // Update Tx Power level on each channel.
\r
559 for(Idx = 1; Idx<15; Idx++)
\r
561 CckTxPwrIdx = priv->chtxpwr[Idx];
\r
562 OfdmTxPwrIdx = priv->chtxpwr_ofdm[Idx];
\r
564 if( CurrentThermal > priv->ThermalMeter )
\r
565 { // higher thermal meter.
\r
566 CckTxPwrIdx += (CurrentThermal - priv->ThermalMeter)*2;
\r
567 OfdmTxPwrIdx += (CurrentThermal - priv->ThermalMeter)*2;
\r
569 if(CckTxPwrIdx >35)
\r
570 CckTxPwrIdx = 35; // Force TxPower to maximal index.
\r
571 if(OfdmTxPwrIdx >35)
\r
572 OfdmTxPwrIdx = 35;
\r
575 { // lower thermal meter.
\r
576 CckTxPwrIdx -= (priv->ThermalMeter - CurrentThermal)*2;
\r
577 OfdmTxPwrIdx -= (priv->ThermalMeter - CurrentThermal)*2;
\r
581 if(OfdmTxPwrIdx <0)
\r
585 // Update TxPower level on CCK and OFDM resp.
\r
586 priv->chtxpwr[Idx] = CckTxPwrIdx;
\r
587 priv->chtxpwr_ofdm[Idx] = OfdmTxPwrIdx;
\r
590 // Update TxPower level immediately.
\r
591 rtl8225z2_SetTXPowerLevel(dev, priv->ieee80211->current_network.channel);
\r
593 priv->ThermalMeter = CurrentThermal;
\r
596 StaRateAdaptive87SE(
\r
597 struct net_device *dev
\r
600 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
601 unsigned long CurrTxokCnt;
\r
605 unsigned long CurrRxokCnt;
\r
606 bool bTryUp = false;
\r
607 bool bTryDown = false;
\r
611 long CurrSignalStrength;
\r
612 bool bUpdateInitialGain = false;
\r
613 u8 u1bOfdm=0, u1bCck = 0;
\r
614 char OfdmTxPwrIdx, CckTxPwrIdx;
\r
616 priv->RateAdaptivePeriod= RATE_ADAPTIVE_TIMER_PERIOD;
\r
619 CurrRetryCnt = priv->CurrRetryCnt;
\r
620 CurrTxokCnt = priv->NumTxOkTotal - priv->LastTxokCnt;
\r
621 CurrRxokCnt = priv->ieee80211->NumRxOkTotal - priv->LastRxokCnt;
\r
622 CurrSignalStrength = priv->Stats_RecvSignalPower;
\r
623 TxThroughput = (u32)(priv->NumTxOkBytesTotal - priv->LastTxOKBytes);
\r
624 priv->LastTxOKBytes = priv->NumTxOkBytesTotal;
\r
625 priv->CurrentOperaRate = priv->ieee80211->rate/5;
\r
626 //printk("priv->CurrentOperaRate is %d\n",priv->CurrentOperaRate);
\r
627 //2 Compute retry ratio.
\r
630 CurrRetryRate = (u16)(CurrRetryCnt*100/CurrTxokCnt);
\r
633 { // It may be serious retry. To distinguish serious retry or no packets modified by Bruce
\r
634 CurrRetryRate = (u16)(CurrRetryCnt*100/1);
\r
639 // Added by Roger, 2007.01.02.
\r
640 // For debug information.
\r
642 //printk("\n(1) pHalData->LastRetryRate: %d \n",priv->LastRetryRate);
\r
643 //printk("(2) RetryCnt = %d \n", CurrRetryCnt);
\r
644 //printk("(3) TxokCnt = %d \n", CurrTxokCnt);
\r
645 //printk("(4) CurrRetryRate = %d \n", CurrRetryRate);
\r
646 //printk("(5) CurrSignalStrength = %d \n",CurrSignalStrength);
\r
647 //printk("(6) TxThroughput is %d\n",TxThroughput);
\r
648 //printk("priv->NumTxOkBytesTotal is %d\n",priv->NumTxOkBytesTotal);
\r
650 priv->LastRetryCnt = priv->CurrRetryCnt;
\r
651 priv->LastTxokCnt = priv->NumTxOkTotal;
\r
652 priv->LastRxokCnt = priv->ieee80211->NumRxOkTotal;
\r
653 priv->CurrRetryCnt = 0;
\r
655 //2No Tx packets, return to init_rate or not?
\r
656 if (CurrRetryRate==0 && CurrTxokCnt == 0)
\r
659 //After 9 (30*300ms) seconds in this condition, we try to raise rate.
\r
661 priv->TryupingCountNoData++;
\r
663 // printk("No Tx packets, TryupingCountNoData(%d)\n", priv->TryupingCountNoData);
\r
664 //[TRC Dell Lab] Extend raised period from 4.5sec to 9sec, Isaiah 2008-02-15 18:00
\r
665 if (priv->TryupingCountNoData>30)
\r
667 priv->TryupingCountNoData = 0;
\r
668 priv->CurrentOperaRate = GetUpgradeTxRate(dev, priv->CurrentOperaRate);
\r
669 // Reset Fail Record
\r
670 priv->LastFailTxRate = 0;
\r
671 priv->LastFailTxRateSS = -200;
\r
672 priv->FailTxRateCount = 0;
\r
674 goto SetInitialGain;
\r
678 priv->TryupingCountNoData=0; //Reset trying up times.
\r
683 // For Netgear case, I comment out the following signal strength estimation,
\r
684 // which can results in lower rate to transmit when sample is NOT enough (e.g. PING request).
\r
685 // 2007.04.09, by Roger.
\r
689 // Restructure rate adaptive as the following main stages:
\r
690 // (1) Add retry threshold in 54M upgrading condition with signal strength.
\r
691 // (2) Add the mechanism to degrade to CCK rate according to signal strength
\r
693 // (3) Remove all Initial Gain Updates over OFDM rate. To avoid the complicated
\r
694 // situation, Initial Gain Update is upon on DIG mechanism except CCK rate.
\r
695 // (4) Add the mehanism of trying to upgrade tx rate.
\r
696 // (5) Record the information of upping tx rate to avoid trying upping tx rate constantly.
\r
697 // By Bruce, 2007-06-05.
\r
701 // 11Mbps or 36Mbps
\r
702 // Check more times in these rate(key rates).
\r
704 if(priv->CurrentOperaRate == 22 || priv->CurrentOperaRate == 72)
\r
709 // Let these rates down more difficult.
\r
711 if(MgntIsCckRate(priv->CurrentOperaRate) || priv->CurrentOperaRate == 36)
\r
717 if (priv->bTryuping == true)
\r
719 //2 For Test Upgrading mechanism
\r
721 // Sometimes the throughput is upon on the capability bwtween the AP and NIC,
\r
722 // thus the low data rate does not improve the performance.
\r
723 // We randomly upgrade the data rate and check if the retry rate is improved.
\r
725 // Upgrading rate did not improve the retry rate, fallback to the original rate.
\r
726 if ( (CurrRetryRate > 25) && TxThroughput < priv->LastTxThroughput)
\r
728 //Not necessary raising rate, fall back rate.
\r
730 //printk("case1-1: Not necessary raising rate, fall back rate....\n");
\r
731 //printk("case1-1: pMgntInfo->CurrentOperaRate =%d, TxThroughput = %d, LastThroughput = %d\n",
\r
732 // priv->CurrentOperaRate, TxThroughput, priv->LastTxThroughput);
\r
736 priv->bTryuping = false;
\r
739 else if (CurrSignalStrength > -47 && (CurrRetryRate < 50))
\r
743 // Added by Roger, 2007.04.09.
\r
744 // Return to highest data rate, if signal strength is good enough.
\r
745 // SignalStrength threshold(-50dbm) is for RTL8186.
\r
746 // Revise SignalStrength threshold to -51dbm.
\r
748 // Also need to check retry rate for safety, by Bruce, 2007-06-05.
\r
749 if(priv->CurrentOperaRate != priv->ieee80211->current_network.HighestOperaRate )
\r
752 // Upgrade Tx Rate directly.
\r
753 priv->TryupingCount += TryUpTh;
\r
755 // printk("case2: StaRateAdaptive87SE: Power(%d) is high enough!!. \n", CurrSignalStrength);
\r
758 else if(CurrTxokCnt > 9 && CurrTxokCnt< 100 && CurrRetryRate >= 600)
\r
760 //2 For Serious Retry
\r
762 // Traffic is not busy but our Tx retry is serious.
\r
765 // Let Rate Mechanism to degrade tx rate directly.
\r
766 priv->TryDownCountLowData += TryDownTh;
\r
767 // printk("case3: RA: Tx Retry is serious. Degrade Tx Rate to %d directly...\n", priv->CurrentOperaRate);
\r
769 else if ( priv->CurrentOperaRate == 108 )
\r
773 if ( (CurrRetryRate>26)&&(priv->LastRetryRate>25))
\r
774 // if ( (CurrRetryRate>40)&&(priv->LastRetryRate>39))
\r
776 //Down to rate 48Mbps.
\r
780 else if ( (CurrRetryRate>17)&&(priv->LastRetryRate>16) && (CurrSignalStrength > -72))
\r
781 // else if ( (CurrRetryRate>17)&&(priv->LastRetryRate>16) && (CurrSignalStrength > -72))
\r
783 //Down to rate 48Mbps.
\r
787 if(bTryDown && (CurrSignalStrength < -75)) //cable link
\r
789 priv->TryDownCountLowData += TryDownTh;
\r
791 //printk("case4---54M \n");
\r
794 else if ( priv->CurrentOperaRate == 96 )
\r
798 if ( ((CurrRetryRate>48) && (priv->LastRetryRate>47)))
\r
799 // if ( ((CurrRetryRate>65) && (priv->LastRetryRate>64)))
\r
802 //Down to rate 36Mbps.
\r
806 else if ( ((CurrRetryRate>21) && (priv->LastRetryRate>20)) && (CurrSignalStrength > -74))
\r
808 //Down to rate 36Mbps.
\r
811 else if((CurrRetryRate> (priv->LastRetryRate + 50 )) && (priv->FailTxRateCount >2 ))
\r
812 // else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
\r
815 priv->TryDownCountLowData += TryDownTh;
\r
817 else if ( (CurrRetryRate<8) && (priv->LastRetryRate<8) ) //TO DO: need to consider (RSSI)
\r
818 // else if ( (CurrRetryRate<28) && (priv->LastRetryRate<8) )
\r
823 if(bTryDown && (CurrSignalStrength < -75))
\r
825 priv->TryDownCountLowData += TryDownTh;
\r
827 //printk("case5---48M \n");
\r
829 else if ( priv->CurrentOperaRate == 72 )
\r
832 if ( (CurrRetryRate>43) && (priv->LastRetryRate>41))
\r
833 // if ( (CurrRetryRate>60) && (priv->LastRetryRate>59))
\r
835 //Down to rate 24Mbps.
\r
838 else if((CurrRetryRate> (priv->LastRetryRate + 50 )) && (priv->FailTxRateCount >2 ))
\r
839 // else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
\r
842 priv->TryDownCountLowData += TryDownTh;
\r
844 else if ( (CurrRetryRate<15) && (priv->LastRetryRate<16)) //TO DO: need to consider (RSSI)
\r
845 // else if ( (CurrRetryRate<35) && (priv->LastRetryRate<36))
\r
850 if(bTryDown && (CurrSignalStrength < -80))
\r
852 priv->TryDownCountLowData += TryDownTh;
\r
854 //printk("case6---36M \n");
\r
856 else if ( priv->CurrentOperaRate == 48 )
\r
860 if ( ((CurrRetryRate>63) && (priv->LastRetryRate>62)))
\r
861 // if ( ((CurrRetryRate>83) && (priv->LastRetryRate>82)))
\r
863 //Down to rate 18Mbps.
\r
867 else if ( ((CurrRetryRate>33) && (priv->LastRetryRate>32)) && (CurrSignalStrength > -82) )
\r
868 // else if ( ((CurrRetryRate>50) && (priv->LastRetryRate>49)) && (CurrSignalStrength > -82) )
\r
870 //Down to rate 18Mbps.
\r
873 else if((CurrRetryRate> (priv->LastRetryRate + 50 )) && (priv->FailTxRateCount >2 ))
\r
874 // else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
\r
878 priv->TryDownCountLowData += TryDownTh;
\r
880 else if ( (CurrRetryRate<20) && (priv->LastRetryRate<21)) //TO DO: need to consider (RSSI)
\r
881 // else if ( (CurrRetryRate<40) && (priv->LastRetryRate<41))
\r
886 if(bTryDown && (CurrSignalStrength < -82))
\r
888 priv->TryDownCountLowData += TryDownTh;
\r
890 //printk("case7---24M \n");
\r
892 else if ( priv->CurrentOperaRate == 36 )
\r
895 // original (109, 109)
\r
896 //[TRC Dell Lab] (90, 91), Isaiah 2008-02-18 23:24
\r
897 // (85, 86), Isaiah 2008-02-18 24:00
\r
898 if ( ((CurrRetryRate>85) && (priv->LastRetryRate>86)))
\r
899 // if ( ((CurrRetryRate>115) && (priv->LastRetryRate>116)))
\r
901 //Down to rate 11Mbps.
\r
904 //[TRC Dell Lab] Isaiah 2008-02-18 23:24
\r
905 else if((CurrRetryRate> (priv->LastRetryRate + 50 )) && (priv->FailTxRateCount >2 ))
\r
906 // else if((CurrRetryRate> (priv->LastRetryRate + 70 )) && (priv->FailTxRateCount >2 ))
\r
909 priv->TryDownCountLowData += TryDownTh;
\r
911 else if ( (CurrRetryRate<22) && (priv->LastRetryRate<23)) //TO DO: need to consider (RSSI)
\r
912 // else if ( (CurrRetryRate<42) && (priv->LastRetryRate<43))
\r
916 //printk("case8---18M \n");
\r
918 else if ( priv->CurrentOperaRate == 22 )
\r
921 if (CurrRetryRate>95)
\r
922 // if (CurrRetryRate>155)
\r
926 else if ( (CurrRetryRate<29) && (priv->LastRetryRate <30) )//TO DO: need to consider (RSSI)
\r
927 // else if ( (CurrRetryRate<49) && (priv->LastRetryRate <50) )
\r
931 //printk("case9---11M \n");
\r
933 else if ( priv->CurrentOperaRate == 11 )
\r
936 if (CurrRetryRate>149)
\r
937 // if (CurrRetryRate>189)
\r
941 else if ( (CurrRetryRate<60) && (priv->LastRetryRate < 65))
\r
942 // else if ( (CurrRetryRate<80) && (priv->LastRetryRate < 85))
\r
947 //printk("case10---5.5M \n");
\r
949 else if ( priv->CurrentOperaRate == 4 )
\r
952 if((CurrRetryRate>99) && (priv->LastRetryRate>99))
\r
953 // if((CurrRetryRate>199) && (priv->LastRetryRate>199))
\r
957 else if ( (CurrRetryRate < 65) && (priv->LastRetryRate < 70))
\r
958 // else if ( (CurrRetryRate < 85) && (priv->LastRetryRate < 90))
\r
962 //printk("case11---2M \n");
\r
964 else if ( priv->CurrentOperaRate == 2 )
\r
967 if( (CurrRetryRate<70) && (priv->LastRetryRate<75))
\r
968 // if( (CurrRetryRate<90) && (priv->LastRetryRate<95))
\r
972 //printk("case12---1M \n");
\r
975 if(bTryUp && bTryDown)
\r
976 printk("StaRateAdaptive87B(): Tx Rate tried upping and downing simultaneously!\n");
\r
978 //1 Test Upgrading Tx Rate
\r
979 // Sometimes the cause of the low throughput (high retry rate) is the compatibility between the AP and NIC.
\r
980 // To test if the upper rate may cause lower retry rate, this mechanism randomly occurs to test upgrading tx rate.
\r
981 if(!bTryUp && !bTryDown && (priv->TryupingCount == 0) && (priv->TryDownCountLowData == 0)
\r
982 && priv->CurrentOperaRate != priv->ieee80211->current_network.HighestOperaRate && priv->FailTxRateCount < 2)
\r
984 if(jiffies% (CurrRetryRate + 101) == 0)
\r
987 priv->bTryuping = true;
\r
988 //printk("StaRateAdaptive87SE(): Randomly try upgrading...\n");
\r
995 priv->TryupingCount++;
\r
996 priv->TryDownCountLowData = 0;
\r
999 // printk("UP: pHalData->TryupingCount = %d\n", priv->TryupingCount);
\r
1000 // printk("UP: TryUpTh(%d)+ (FailTxRateCount(%d))^2 =%d\n",
\r
1001 // TryUpTh, priv->FailTxRateCount, (TryUpTh + priv->FailTxRateCount * priv->FailTxRateCount) );
\r
1002 // printk("UP: pHalData->bTryuping=%d\n", priv->bTryuping);
\r
1007 // Check more times if we need to upgrade indeed.
\r
1008 // Because the largest value of pHalData->TryupingCount is 0xFFFF and
\r
1009 // the largest value of pHalData->FailTxRateCount is 0x14,
\r
1010 // this condition will be satisfied at most every 2 min.
\r
1013 if((priv->TryupingCount > (TryUpTh + priv->FailTxRateCount * priv->FailTxRateCount)) ||
\r
1014 (CurrSignalStrength > priv->LastFailTxRateSS) || priv->bTryuping)
\r
1016 priv->TryupingCount = 0;
\r
1018 // When transfering from CCK to OFDM, DIG is an important issue.
\r
1020 if(priv->CurrentOperaRate == 22)
\r
1021 bUpdateInitialGain = true;
\r
1023 // The difference in throughput between 48Mbps and 36Mbps is 8M.
\r
1024 // So, we must be carefully in this rate scale. Isaiah 2008-02-15.
\r
1026 if( ((priv->CurrentOperaRate == 72) || (priv->CurrentOperaRate == 48) || (priv->CurrentOperaRate == 36)) &&
\r
1027 (priv->FailTxRateCount > 2) )
\r
1028 priv->RateAdaptivePeriod= (RATE_ADAPTIVE_TIMER_PERIOD/2);
\r
1030 // (1)To avoid upgrade frequently to the fail tx rate, add the FailTxRateCount into the threshold.
\r
1031 // (2)If the signal strength is increased, it may be able to upgrade.
\r
1033 priv->CurrentOperaRate = GetUpgradeTxRate(dev, priv->CurrentOperaRate);
\r
1034 // printk("StaRateAdaptive87SE(): Upgrade Tx Rate to %d\n", priv->CurrentOperaRate);
\r
1036 //[TRC Dell Lab] Bypass 12/9/6, Isaiah 2008-02-18 20:00
\r
1037 if(priv->CurrentOperaRate ==36)
\r
1039 priv->bUpdateARFR=true;
\r
1040 write_nic_word(dev, ARFR, 0x0F8F); //bypass 12/9/6
\r
1041 // printk("UP: ARFR=0xF8F\n");
\r
1043 else if(priv->bUpdateARFR)
\r
1045 priv->bUpdateARFR=false;
\r
1046 write_nic_word(dev, ARFR, 0x0FFF); //set 1M ~ 54Mbps.
\r
1047 // printk("UP: ARFR=0xFFF\n");
\r
1050 // Update Fail Tx rate and count.
\r
1051 if(priv->LastFailTxRate != priv->CurrentOperaRate)
\r
1053 priv->LastFailTxRate = priv->CurrentOperaRate;
\r
1054 priv->FailTxRateCount = 0;
\r
1055 priv->LastFailTxRateSS = -200; // Set lowest power.
\r
1061 if(priv->TryupingCount > 0)
\r
1062 priv->TryupingCount --;
\r
1067 priv->TryDownCountLowData++;
\r
1068 priv->TryupingCount = 0;
\r
1070 // printk("DN: pHalData->TryDownCountLowData = %d\n",priv->TryDownCountLowData);
\r
1071 // printk("DN: TryDownTh =%d\n", TryDownTh);
\r
1072 // printk("DN: pHalData->bTryuping=%d\n", priv->bTryuping);
\r
1075 //Check if Tx rate can be degraded or Test trying upgrading should fallback.
\r
1076 if(priv->TryDownCountLowData > TryDownTh || priv->bTryuping)
\r
1078 priv->TryDownCountLowData = 0;
\r
1079 priv->bTryuping = false;
\r
1080 // Update fail information.
\r
1081 if(priv->LastFailTxRate == priv->CurrentOperaRate)
\r
1083 priv->FailTxRateCount ++;
\r
1084 // Record the Tx fail rate signal strength.
\r
1085 if(CurrSignalStrength > priv->LastFailTxRateSS)
\r
1087 priv->LastFailTxRateSS = CurrSignalStrength;
\r
1092 priv->LastFailTxRate = priv->CurrentOperaRate;
\r
1093 priv->FailTxRateCount = 1;
\r
1094 priv->LastFailTxRateSS = CurrSignalStrength;
\r
1096 priv->CurrentOperaRate = GetDegradeTxRate(dev, priv->CurrentOperaRate);
\r
1098 // Reduce chariot training time at weak signal strength situation. SD3 ED demand.
\r
1099 //[TRC Dell Lab] Revise Signal Threshold from -75 to -80 , Isaiah 2008-02-18 20:00
\r
1100 if( (CurrSignalStrength < -80) && (priv->CurrentOperaRate > 72 ))
\r
1102 priv->CurrentOperaRate = 72;
\r
1103 // printk("DN: weak signal strength (%d), degrade to 36Mbps\n", CurrSignalStrength);
\r
1106 //[TRC Dell Lab] Bypass 12/9/6, Isaiah 2008-02-18 20:00
\r
1107 if(priv->CurrentOperaRate ==36)
\r
1109 priv->bUpdateARFR=true;
\r
1110 write_nic_word(dev, ARFR, 0x0F8F); //bypass 12/9/6
\r
1111 // printk("DN: ARFR=0xF8F\n");
\r
1113 else if(priv->bUpdateARFR)
\r
1115 priv->bUpdateARFR=false;
\r
1116 write_nic_word(dev, ARFR, 0x0FFF); //set 1M ~ 54Mbps.
\r
1117 // printk("DN: ARFR=0xFFF\n");
\r
1121 // When it is CCK rate, it may need to update initial gain to receive lower power packets.
\r
1123 if(MgntIsCckRate(priv->CurrentOperaRate))
\r
1125 bUpdateInitialGain = true;
\r
1127 // printk("StaRateAdaptive87SE(): Degrade Tx Rate to %d\n", priv->CurrentOperaRate);
\r
1132 if(priv->TryDownCountLowData > 0)
\r
1133 priv->TryDownCountLowData --;
\r
1136 // Keep the Tx fail rate count to equal to 0x15 at most.
\r
1137 // Reduce the fail count at least to 10 sec if tx rate is tending stable.
\r
1138 if(priv->FailTxRateCount >= 0x15 ||
\r
1139 (!bTryUp && !bTryDown && priv->TryDownCountLowData == 0 && priv->TryupingCount && priv->FailTxRateCount > 0x6))
\r
1141 priv->FailTxRateCount --;
\r
1145 OfdmTxPwrIdx = priv->chtxpwr_ofdm[priv->ieee80211->current_network.channel];
\r
1146 CckTxPwrIdx = priv->chtxpwr[priv->ieee80211->current_network.channel];
\r
1148 //[TRC Dell Lab] Mac0x9e increase 2 level in 36M~18M situation, Isaiah 2008-02-18 24:00
\r
1149 if((priv->CurrentOperaRate < 96) &&(priv->CurrentOperaRate > 22))
\r
1151 u1bCck = read_nic_byte(dev, CCK_TXAGC);
\r
1152 u1bOfdm = read_nic_byte(dev, OFDM_TXAGC);
\r
1154 // case 1: Never enter High power
\r
1155 if(u1bCck == CckTxPwrIdx )
\r
1157 if(u1bOfdm != (OfdmTxPwrIdx+2) )
\r
1159 priv->bEnhanceTxPwr= true;
\r
1160 u1bOfdm = ((u1bOfdm+2) > 35) ? 35: (u1bOfdm+2);
\r
1161 write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
\r
1162 // printk("Enhance OFDM_TXAGC : +++++ u1bOfdm= 0x%x\n", u1bOfdm);
\r
1165 // case 2: enter high power
\r
1166 else if(u1bCck < CckTxPwrIdx)
\r
1168 if(!priv->bEnhanceTxPwr)
\r
1170 priv->bEnhanceTxPwr= true;
\r
1171 u1bOfdm = ((u1bOfdm+2) > 35) ? 35: (u1bOfdm+2);
\r
1172 write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
\r
1173 //RT_TRACE(COMP_RATE, DBG_TRACE, ("Enhance OFDM_TXAGC(2) : +++++ u1bOfdm= 0x%x\n", u1bOfdm));
\r
1177 else if(priv->bEnhanceTxPwr) //54/48/11/5.5/2/1
\r
1179 u1bCck = read_nic_byte(dev, CCK_TXAGC);
\r
1180 u1bOfdm = read_nic_byte(dev, OFDM_TXAGC);
\r
1182 // case 1: Never enter High power
\r
1183 if(u1bCck == CckTxPwrIdx )
\r
1185 priv->bEnhanceTxPwr= false;
\r
1186 write_nic_byte(dev, OFDM_TXAGC, OfdmTxPwrIdx);
\r
1187 //printk("Recover OFDM_TXAGC : ===== u1bOfdm= 0x%x\n", OfdmTxPwrIdx);
\r
1189 // case 2: enter high power
\r
1190 else if(u1bCck < CckTxPwrIdx)
\r
1192 priv->bEnhanceTxPwr= false;
\r
1193 u1bOfdm = ((u1bOfdm-2) > 0) ? (u1bOfdm-2): 0;
\r
1194 write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
\r
1195 //RT_TRACE(COMP_RATE, DBG_TRACE, ("Recover OFDM_TXAGC(2): ===== u1bOfdm= 0x%x\n", u1bOfdm));
\r
1201 // We need update initial gain when we set tx rate "from OFDM to CCK" or
\r
1202 // "from CCK to OFDM".
\r
1205 if(bUpdateInitialGain)
\r
1207 if(MgntIsCckRate(priv->CurrentOperaRate)) // CCK
\r
1209 if(priv->InitialGain > priv->RegBModeGainStage)
\r
1211 priv->InitialGainBackUp= priv->InitialGain;
\r
1213 if(CurrSignalStrength < -85) // Low power, OFDM [0x17] = 26.
\r
1215 //SD3 SYs suggest that CurrSignalStrength < -65, ofdm 0x17=26.
\r
1216 priv->InitialGain = priv->RegBModeGainStage;
\r
1218 else if(priv->InitialGain > priv->RegBModeGainStage + 1)
\r
1220 priv->InitialGain -= 2;
\r
1224 priv->InitialGain --;
\r
1226 printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n",priv->InitialGain, priv->CurrentOperaRate);
\r
1227 UpdateInitialGain(dev);
\r
1232 if(priv->InitialGain < 4)
\r
1234 priv->InitialGainBackUp= priv->InitialGain;
\r
1236 priv->InitialGain ++;
\r
1237 printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n",priv->InitialGain, priv->CurrentOperaRate);
\r
1238 UpdateInitialGain(dev);
\r
1243 //Record the related info
\r
1244 priv->LastRetryRate = CurrRetryRate;
\r
1245 priv->LastTxThroughput = TxThroughput;
\r
1246 priv->ieee80211->rate = priv->CurrentOperaRate * 5;
\r
1250 #if LINUX_VERSION_CODE >=KERNEL_VERSION(2,6,20)
\r
1251 void rtl8180_rate_adapter(struct work_struct * work)
\r
1253 struct delayed_work *dwork = container_of(work,struct delayed_work,work);
\r
1254 struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,rate_adapter_wq);
\r
1255 struct net_device *dev = ieee->dev;
\r
1257 void rtl8180_rate_adapter(struct net_device *dev)
\r
1261 //struct r8180_priv *priv = ieee80211_priv(dev);
\r
1262 // DMESG("---->rtl8180_rate_adapter");
\r
1263 StaRateAdaptive87SE(dev);
\r
1264 // DMESG("<----rtl8180_rate_adapter");
\r
1266 void timer_rate_adaptive(unsigned long data)
\r
1268 struct r8180_priv* priv = ieee80211_priv((struct net_device *)data);
\r
1269 //DMESG("---->timer_rate_adaptive()\n");
\r
1272 // DMESG("<----timer_rate_adaptive():driver is not up!\n");
\r
1275 if((priv->ieee80211->iw_mode != IW_MODE_MASTER)
\r
1276 && (priv->ieee80211->state == IEEE80211_LINKED) &&
\r
1277 (priv->ForcedDataRate == 0) )
\r
1279 // DMESG("timer_rate_adaptive():schedule rate_adapter_wq\n");
\r
1280 #ifdef CONFIG_RTL818X_S
\r
1281 queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->rate_adapter_wq);
\r
1282 // StaRateAdaptive87SE((struct net_device *)data);
\r
1285 priv->rateadapter_timer.expires = jiffies + MSECS(priv->RateAdaptivePeriod);
\r
1286 add_timer(&priv->rateadapter_timer);
\r
1287 //DMESG("<----timer_rate_adaptive()\n");
\r
1291 SwAntennaDiversityRxOk8185(
\r
1292 struct net_device *dev,
\r
1296 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
1298 // printk("+SwAntennaDiversityRxOk8185: RxSs: %d\n", SignalStrength);
\r
1300 priv->AdRxOkCnt++;
\r
1302 if( priv->AdRxSignalStrength != -1)
\r
1304 priv->AdRxSignalStrength = ((priv->AdRxSignalStrength*7) + (SignalStrength*3)) / 10;
\r
1307 { // Initialization case.
\r
1308 priv->AdRxSignalStrength = SignalStrength;
\r
1311 if( priv->LastRxPktAntenna ) //Main antenna.
\r
1312 priv->AdMainAntennaRxOkCnt++;
\r
1313 else // Aux antenna.
\r
1314 priv->AdAuxAntennaRxOkCnt++;
\r
1316 // printk("-SwAntennaDiversityRxOk8185: AdRxOkCnt: %d AdRxSignalStrength: %d\n", priv->AdRxOkCnt, priv->AdRxSignalStrength);
\r
1320 // Change Antenna Switch.
\r
1324 struct net_device *dev,
\r
1325 u8 u1bAntennaIndex
\r
1328 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
1329 bool bAntennaSwitched = false;
\r
1331 // printk("+SetAntenna8185(): Antenna is switching to: %d \n", u1bAntennaIndex);
\r
1333 switch(u1bAntennaIndex)
\r
1336 switch(priv->rf_chip)
\r
1340 #ifdef CONFIG_RTL8185B
\r
1341 #ifdef CONFIG_RTL818X_S
\r
1342 // Mac register, main antenna
\r
1343 write_nic_byte(dev, ANTSEL, 0x03);
\r
1345 write_phy_cck(dev,0x11, 0x9b); // Config CCK RX antenna.
\r
1346 write_phy_ofdm(dev, 0x0d, 0x5c); // Config OFDM RX antenna.
\r
1349 // Mac register, main antenna
\r
1350 write_nic_byte(dev, ANTSEL, 0x03);
\r
1352 write_phy_cck(dev, 0x10, 0x9b); // Config CCK RX antenna.
\r
1353 write_phy_ofdm(dev, 0x0d, 0x5c); // Config OFDM RX antenna.
\r
1357 bAntennaSwitched = true;
\r
1361 printk("SetAntenna8185: unkown RFChipID(%d)\n", priv->rf_chip);
\r
1367 switch(priv->rf_chip)
\r
1371 #ifdef CONFIG_RTL8185B
\r
1372 #ifdef CONFIG_RTL818X_S
\r
1373 // Mac register, aux antenna
\r
1374 write_nic_byte(dev, ANTSEL, 0x00);
\r
1376 write_phy_cck(dev, 0x11, 0xbb); // Config CCK RX antenna.
\r
1377 write_phy_ofdm(dev, 0x0d, 0x54); // Config OFDM RX antenna.
\r
1379 // Mac register, aux antenna
\r
1380 write_nic_byte(dev, ANTSEL, 0x00);
\r
1382 write_phy_cck(dev, 0x10, 0xbb); // Config CCK RX antenna.
\r
1383 write_phy_ofdm(dev, 0x0d, 0x54); // Config OFDM RX antenna.
\r
1387 bAntennaSwitched = true;
\r
1391 printk("SetAntenna8185: unkown RFChipID(%d)\n", priv->rf_chip);
\r
1397 printk("SetAntenna8185: unkown u1bAntennaIndex(%d)\n", u1bAntennaIndex);
\r
1401 if(bAntennaSwitched)
\r
1403 priv->CurrAntennaIndex = u1bAntennaIndex;
\r
1406 // printk("-SetAntenna8185(): return (%#X)\n", bAntennaSwitched);
\r
1408 return bAntennaSwitched;
\r
1412 // Toggle Antenna switch.
\r
1416 struct net_device *dev
\r
1419 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
1423 if(priv->CurrAntennaIndex == 0)
\r
1425 #if 0//lzm del 080826
\r
1427 #ifdef CONFIG_RTL818X_S
\r
1428 if(priv->bSwAntennaDiverity)
\r
1429 bResult = SetAntennaConfig87SE(dev, 1, true);
\r
1433 bResult = SetAntenna8185(dev, 1);
\r
1435 // printk("SwitchAntenna(): switching to antenna 1 ......\n");
\r
1436 // bResult = SetAntenna8185(dev, 1);//-by amy 080312
\r
1440 #if 0//lzm del 080826
\r
1442 #ifdef CONFIG_RTL818X_S
\r
1443 if(priv->bSwAntennaDiverity)
\r
1444 bResult = SetAntennaConfig87SE(dev, 0, true);
\r
1448 bResult = SetAntenna8185(dev, 0);
\r
1450 // printk("SwitchAntenna(): switching to antenna 0 ......\n");
\r
1451 // bResult = SetAntenna8185(dev, 0);//-by amy 080312
\r
1458 // Engine of SW Antenna Diversity mechanism.
\r
1459 // Since 8187 has no Tx part information,
\r
1460 // this implementation is only dependend on Rx part information.
\r
1462 // 2006.04.17, by rcnjko.
\r
1465 SwAntennaDiversity(
\r
1466 struct net_device *dev
\r
1469 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
1470 bool bSwCheckSS=false;
\r
1471 // printk("+SwAntennaDiversity(): CurrAntennaIndex: %d\n", priv->CurrAntennaIndex);
\r
1472 // printk("AdTickCount is %d\n",priv->AdTickCount);
\r
1476 priv->AdTickCount++;
\r
1478 printk("(1) AdTickCount: %d, AdCheckPeriod: %d\n",
\r
1479 priv->AdTickCount, priv->AdCheckPeriod);
\r
1480 printk("(2) AdRxSignalStrength: %ld, AdRxSsThreshold: %ld\n",
\r
1481 priv->AdRxSignalStrength, priv->AdRxSsThreshold);
\r
1483 // priv->AdTickCount++;//-by amy 080312
\r
1485 // Case 1. No Link.
\r
1486 if(priv->ieee80211->state != IEEE80211_LINKED)
\r
1488 // printk("SwAntennaDiversity(): Case 1. No Link.\n");
\r
1490 priv->bAdSwitchedChecking = false;
\r
1491 // I switch antenna here to prevent any one of antenna is broken before link established, 2006.04.18, by rcnjko..
\r
1492 SwitchAntenna(dev);
\r
1494 // Case 2. Linked but no packet received.
\r
1495 else if(priv->AdRxOkCnt == 0)
\r
1497 // printk("SwAntennaDiversity(): Case 2. Linked but no packet received.\n");
\r
1499 priv->bAdSwitchedChecking = false;
\r
1500 SwitchAntenna(dev);
\r
1502 // Case 3. Evaluate last antenna switch action and undo it if necessary.
\r
1503 else if(priv->bAdSwitchedChecking == true)
\r
1505 // printk("SwAntennaDiversity(): Case 3. Evaluate last antenna switch action.\n");
\r
1507 priv->bAdSwitchedChecking = false;
\r
1509 // Adjust Rx signal strength threashold.
\r
1510 priv->AdRxSsThreshold = (priv->AdRxSignalStrength + priv->AdRxSsBeforeSwitched) / 2;
\r
1512 priv->AdRxSsThreshold = (priv->AdRxSsThreshold > priv->AdMaxRxSsThreshold) ?
\r
1513 priv->AdMaxRxSsThreshold: priv->AdRxSsThreshold;
\r
1514 if(priv->AdRxSignalStrength < priv->AdRxSsBeforeSwitched)
\r
1515 { // Rx signal strength is not improved after we swtiched antenna. => Swich back.
\r
1516 // printk("SwAntennaDiversity(): Rx Signal Strength is not improved, CurrRxSs: %d, LastRxSs: %d\n",
\r
1517 // priv->AdRxSignalStrength, priv->AdRxSsBeforeSwitched);
\r
1519 // Increase Antenna Diversity checking period due to bad decision.
\r
1520 priv->AdCheckPeriod *= 2;
\r
1522 // Increase Antenna Diversity checking period.
\r
1523 if(priv->AdCheckPeriod > priv->AdMaxCheckPeriod)
\r
1524 priv->AdCheckPeriod = priv->AdMaxCheckPeriod;
\r
1526 // Wrong deceision => switch back.
\r
1527 SwitchAntenna(dev);
\r
1530 { // Rx Signal Strength is improved.
\r
1531 // printk("SwAntennaDiversity(): Rx Signal Strength is improved, CurrRxSs: %d, LastRxSs: %d\n",
\r
1532 // priv->AdRxSignalStrength, priv->AdRxSsBeforeSwitched);
\r
1534 // Reset Antenna Diversity checking period to its min value.
\r
1535 priv->AdCheckPeriod = priv->AdMinCheckPeriod;
\r
1538 // printk("SwAntennaDiversity(): AdRxSsThreshold: %d, AdCheckPeriod: %d\n",
\r
1539 // priv->AdRxSsThreshold, priv->AdCheckPeriod);
\r
1541 // Case 4. Evaluate if we shall switch antenna now.
\r
1542 // Cause Table Speed is very fast in TRC Dell Lab, we check it every time.
\r
1543 else// if(priv->AdTickCount >= priv->AdCheckPeriod)//-by amy 080312
\r
1545 // printk("SwAntennaDiversity(): Case 4. Evaluate if we shall switch antenna now.\n");
\r
1547 priv->AdTickCount = 0;
\r
1550 // <Roger_Notes> We evaluate RxOk counts for each antenna first and than
\r
1551 // evaluate signal strength.
\r
1552 // The following operation can overcome the disability of CCA on both two antennas
\r
1553 // When signal strength was extremely low or high.
\r
1558 // Evaluate RxOk count from each antenna if we shall switch default antenna now.
\r
1559 // Added by Roger, 2008.02.21.
\r
1561 if((priv->AdMainAntennaRxOkCnt < priv->AdAuxAntennaRxOkCnt)
\r
1562 && (priv->CurrAntennaIndex == 0))
\r
1563 { // We set Main antenna as default but RxOk count was less than Aux ones.
\r
1565 // printk("SwAntennaDiversity(): Main antenna RxOK is poor, AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
\r
1566 // priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
\r
1568 // Switch to Aux antenna.
\r
1569 SwitchAntenna(dev);
\r
1570 priv->bHWAdSwitched = true;
\r
1572 else if((priv->AdAuxAntennaRxOkCnt < priv->AdMainAntennaRxOkCnt)
\r
1573 && (priv->CurrAntennaIndex == 1))
\r
1574 { // We set Aux antenna as default but RxOk count was less than Main ones.
\r
1576 // printk("SwAntennaDiversity(): Aux antenna RxOK is poor, AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
\r
1577 // priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
\r
1579 // Switch to Main antenna.
\r
1580 SwitchAntenna(dev);
\r
1581 priv->bHWAdSwitched = true;
\r
1584 {// Default antenna is better.
\r
1586 // printk("SwAntennaDiversity(): Default antenna is better., AdMainAntennaRxOkCnt: %d, AdAuxAntennaRxOkCnt: %d\n",
\r
1587 // priv->AdMainAntennaRxOkCnt, priv->AdAuxAntennaRxOkCnt);
\r
1589 // Still need to check current signal strength.
\r
1590 priv->bHWAdSwitched = false;
\r
1593 // <Roger_Notes> We evaluate Rx signal strength ONLY when default antenna
\r
1594 // didn't changed by HW evaluation.
\r
1597 // [TRC Dell Lab] SignalStrength is inaccuracy. Isaiah 2008-03-05
\r
1598 // For example, Throughput of aux is better than main antenna(about 10M v.s 2M),
\r
1599 // but AdRxSignalStrength is less than main.
\r
1600 // Our guess is that main antenna have lower throughput and get many change
\r
1601 // to receive more CCK packets(ex.Beacon) which have stronger SignalStrength.
\r
1603 if( (!priv->bHWAdSwitched) && (bSwCheckSS))
\r
1606 // Evaluate Rx signal strength if we shall switch antenna now.
\r
1607 if(priv->AdRxSignalStrength < priv->AdRxSsThreshold)
\r
1608 { // Rx signal strength is weak => Switch Antenna.
\r
1609 // printk("SwAntennaDiversity(): Rx Signal Strength is weak, CurrRxSs: %d, RxSsThreshold: %d\n",
\r
1610 // priv->AdRxSignalStrength, priv->AdRxSsThreshold);
\r
1612 priv->AdRxSsBeforeSwitched = priv->AdRxSignalStrength;
\r
1613 priv->bAdSwitchedChecking = true;
\r
1615 SwitchAntenna(dev);
\r
1618 { // Rx signal strength is OK.
\r
1619 // printk("SwAntennaDiversity(): Rx Signal Strength is OK, CurrRxSs: %d, RxSsThreshold: %d\n",
\r
1620 // priv->AdRxSignalStrength, priv->AdRxSsThreshold);
\r
1622 priv->bAdSwitchedChecking = false;
\r
1623 // Increase Rx signal strength threashold if necessary.
\r
1624 if( (priv->AdRxSignalStrength > (priv->AdRxSsThreshold + 10)) && // Signal is much stronger than current threshold
\r
1625 priv->AdRxSsThreshold <= priv->AdMaxRxSsThreshold) // Current threhold is not yet reach upper limit.
\r
1627 priv->AdRxSsThreshold = (priv->AdRxSsThreshold + priv->AdRxSignalStrength) / 2;
\r
1628 priv->AdRxSsThreshold = (priv->AdRxSsThreshold > priv->AdMaxRxSsThreshold) ?
\r
1629 priv->AdMaxRxSsThreshold: priv->AdRxSsThreshold;//+by amy 080312
\r
1632 // Reduce Antenna Diversity checking period if possible.
\r
1633 if( priv->AdCheckPeriod > priv->AdMinCheckPeriod )
\r
1635 priv->AdCheckPeriod /= 2;
\r
1641 // Reset antenna diversity Rx related statistics.
\r
1642 priv->AdRxOkCnt = 0;
\r
1643 priv->AdMainAntennaRxOkCnt = 0;
\r
1644 priv->AdAuxAntennaRxOkCnt = 0;
\r
1647 // priv->AdRxOkCnt = 0;//-by amy 080312
\r
1649 // printk("-SwAntennaDiversity()\n");
\r
1654 // Return TRUE if we shall perform Tx Power Tracking Mecahnism, FALSE otherwise.
\r
1657 CheckTxPwrTracking( struct net_device *dev)
\r
1659 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
1661 if(!priv->bTxPowerTrack)
\r
1666 //lzm reserved 080826
\r
1667 //if(priv->bScanInProgress)
\r
1672 //if 87SE is in High Power , don't do Tx Power Tracking. asked by SD3 ED. 2008-08-08 Isaiah
\r
1673 if(priv->bToUpdateTxPwr)
\r
1684 // Timer callback function of SW Antenna Diversity.
\r
1687 SwAntennaDiversityTimerCallback(
\r
1688 struct net_device *dev
\r
1691 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
\r
1692 RT_RF_POWER_STATE rtState;
\r
1694 //printk("+SwAntennaDiversityTimerCallback()\n");
\r
1697 // We do NOT need to switch antenna while RF is off.
\r
1698 // 2007.05.09, added by Roger.
\r
1700 rtState = priv->eRFPowerState;
\r
1702 if (rtState == eRfOff)
\r
1704 // printk("SwAntennaDiversityTimer - RF is OFF.\n");
\r
1707 else if (rtState == eRfSleep)
\r
1709 // Don't access BB/RF under Disable PLL situation.
\r
1710 //RT_TRACE((COMP_RF|COMP_ANTENNA), DBG_LOUD, ("SwAntennaDiversityTimerCallback(): RF is Sleep => skip it\n"));
\r
1713 SwAntennaDiversity(dev);
\r
1719 priv->SwAntennaDiversityTimer.expires = jiffies + MSECS(ANTENNA_DIVERSITY_TIMER_PERIOD);
\r
1720 add_timer(&priv->SwAntennaDiversityTimer);
\r
1723 //printk("-SwAntennaDiversityTimerCallback()\n");
\r