VOID
ODM_CfoTracking(
IN PVOID pDM_VOID
)
{
PDM_ODM_T pDM_Odm = (PDM_ODM_T)pDM_VOID;
PCFO_TRACKING pCfoTrack = (PCFO_TRACKING)PhyDM_Get_Structure( pDM_Odm, PHYDM_CFOTRACK);
int CFO_kHz_A, CFO_kHz_B, CFO_ave = 0;
int CFO_ave_diff;
int CrystalCap = (int)pCfoTrack->CrystalCap;
u1Byte Adjust_Xtal = 1;
//4 Support ability
if(!(pDM_Odm->SupportAbility & ODM_BB_CFO_TRACKING))
{
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Return: SupportAbility ODM_BB_CFO_TRACKING is disabled\n"));
return;
}
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking()=========> \n"));
if(!pDM_Odm->bLinked || !pDM_Odm->bOneEntryOnly)
{
//4 No link or more than one entry
ODM_CfoTrackingReset(pDM_Odm);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Reset: bLinked = %d, bOneEntryOnly = %d\n",
pDM_Odm->bLinked, pDM_Odm->bOneEntryOnly));
}
else
{
//3 1. CFO Tracking
//4 1.1 No new packet
if(pCfoTrack->packetCount == pCfoTrack->packetCount_pre)
{
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): packet counter doesn't change\n"));
return;
}
pCfoTrack->packetCount_pre = pCfoTrack->packetCount;
//4 1.2 Calculate CFO
CFO_kHz_A = (int)((pCfoTrack->CFO_tail[0] * 3125) / 10)>>7; /* CFO_tail[1:0] is S(8,7), (num_subcarrier>>7) x 312.5K = CFO value(K Hz) */
CFO_kHz_B = (int)((pCfoTrack->CFO_tail[1] * 3125) / 10)>>7;
if(pDM_Odm->RFType < ODM_2T2R)
CFO_ave = CFO_kHz_A;
else
CFO_ave = (int)(CFO_kHz_A + CFO_kHz_B) >> 1;
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): CFO_kHz_A = %dkHz, CFO_kHz_B = %dkHz, CFO_ave = %dkHz\n",
CFO_kHz_A, CFO_kHz_B, CFO_ave));
//4 1.3 Avoid abnormal large CFO
CFO_ave_diff = (pCfoTrack->CFO_ave_pre >= CFO_ave)?(pCfoTrack->CFO_ave_pre - CFO_ave):(CFO_ave - pCfoTrack->CFO_ave_pre);
if(CFO_ave_diff > 20 && pCfoTrack->largeCFOHit == 0 && !pCfoTrack->bAdjust)
{
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): first large CFO hit\n"));
pCfoTrack->largeCFOHit = 1;
return;
}
else
pCfoTrack->largeCFOHit = 0;
pCfoTrack->CFO_ave_pre = CFO_ave;
//4 1.4 Dynamic Xtal threshold
if(pCfoTrack->bAdjust == FALSE)
{
if(CFO_ave > CFO_TH_XTAL_HIGH || CFO_ave < (-CFO_TH_XTAL_HIGH))
pCfoTrack->bAdjust = TRUE;
}
else
{
if(CFO_ave < CFO_TH_XTAL_LOW && CFO_ave > (-CFO_TH_XTAL_LOW))
pCfoTrack->bAdjust = FALSE;
}
#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN|ODM_CE))
//4 1.5 BT case: Disable CFO tracking
if(pDM_Odm->bBtEnabled)
{
pCfoTrack->bAdjust = FALSE;
odm_SetCrystalCap(pDM_Odm, pCfoTrack->DefXCap);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Disable CFO tracking for BT!!\n"));
}
/*
//4 1.6 Big jump
if(pCfoTrack->bAdjust)
{
if(CFO_ave > CFO_TH_XTAL_LOW)
Adjust_Xtal = Adjust_Xtal + ((CFO_ave - CFO_TH_XTAL_LOW) >> 2);
else if(CFO_ave < (-CFO_TH_XTAL_LOW))
Adjust_Xtal = Adjust_Xtal + ((CFO_TH_XTAL_LOW - CFO_ave) >> 2);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Crystal cap offset = %d\n", Adjust_Xtal));
}
*/
#endif
//4 1.7 Adjust Crystal Cap.
if(pCfoTrack->bAdjust)
{
if(CFO_ave > CFO_TH_XTAL_LOW)
CrystalCap = CrystalCap + Adjust_Xtal;
else if(CFO_ave < (-CFO_TH_XTAL_LOW))
CrystalCap = CrystalCap - Adjust_Xtal;
if(CrystalCap > 0x3f)
CrystalCap = 0x3f;
else if (CrystalCap < 0)
CrystalCap = 0;
odm_SetCrystalCap(pDM_Odm, (u1Byte)CrystalCap);
}
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Crystal cap = 0x%x, Default Crystal cap = 0x%x\n",
pCfoTrack->CrystalCap, pCfoTrack->DefXCap));
#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN|ODM_CE))
if(pDM_Odm->SupportICType & ODM_IC_11AC_SERIES)
return;
//3 2. Dynamic ATC switch
if(CFO_ave < CFO_TH_ATC && CFO_ave > -CFO_TH_ATC)
{
odm_SetATCStatus(pDM_Odm, FALSE);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Disable ATC!!\n"));
}
else
{
odm_SetATCStatus(pDM_Odm, TRUE);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Enable ATC!!\n"));
}
#endif
}
}
void
ODM_CfoTracking(
IN void * pDM_VOID
)
{
PDM_ODM_T pDM_Odm = (PDM_ODM_T)pDM_VOID;
PCFO_TRACKING pCfoTrack = &pDM_Odm->DM_CfoTrack;
int CFO_kHz_A, CFO_kHz_B, CFO_ave = 0;
int CFO_ave_diff;
int CrystalCap = (int)pCfoTrack->CrystalCap;
u1Byte Adjust_Xtal = 1;
//4 Support ability
if(!(pDM_Odm->SupportAbility & ODM_BB_CFO_TRACKING))
{
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Return: SupportAbility ODM_BB_CFO_TRACKING is disabled\n"));
return;
}
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking()=========> \n"));
if(!pDM_Odm->bLinked || !pDM_Odm->bOneEntryOnly)
{
//4 No link or more than one entry
ODM_CfoTrackingReset(pDM_Odm);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Reset: bLinked = %d, bOneEntryOnly = %d\n",
pDM_Odm->bLinked, pDM_Odm->bOneEntryOnly));
}
else
{
//3 1. CFO Tracking
//4 1.1 No new packet
if(pCfoTrack->packetCount == pCfoTrack->packetCount_pre)
{
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): packet counter doesn't change\n"));
return;
}
pCfoTrack->packetCount_pre = pCfoTrack->packetCount;
//4 1.2 Calculate CFO
CFO_kHz_A = (int)(pCfoTrack->CFO_tail[0] * 3125) / 1280;
CFO_kHz_B = (int)(pCfoTrack->CFO_tail[1] * 3125) / 1280;
if(pDM_Odm->RFType < ODM_2T2R)
CFO_ave = CFO_kHz_A;
else
CFO_ave = (int)(CFO_kHz_A + CFO_kHz_B) >> 1;
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): CFO_kHz_A = %dkHz, CFO_kHz_B = %dkHz, CFO_ave = %dkHz\n",
CFO_kHz_A, CFO_kHz_B, CFO_ave));
//4 1.3 Avoid abnormal large CFO
CFO_ave_diff = (pCfoTrack->CFO_ave_pre >= CFO_ave)?(pCfoTrack->CFO_ave_pre - CFO_ave):(CFO_ave - pCfoTrack->CFO_ave_pre);
if(CFO_ave_diff > 20 && pCfoTrack->largeCFOHit == 0 && !pCfoTrack->bAdjust)
{
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): first large CFO hit\n"));
pCfoTrack->largeCFOHit = 1;
return;
}
else
pCfoTrack->largeCFOHit = 0;
pCfoTrack->CFO_ave_pre = CFO_ave;
//4 1.4 Dynamic Xtal threshold
if(pCfoTrack->bAdjust == false)
{
if(CFO_ave > CFO_TH_XTAL_HIGH || CFO_ave < (-CFO_TH_XTAL_HIGH))
pCfoTrack->bAdjust = true;
}
else
{
if(CFO_ave < CFO_TH_XTAL_LOW && CFO_ave > (-CFO_TH_XTAL_LOW))
pCfoTrack->bAdjust = false;
}
//4 1.5 BT case: Disable CFO tracking
if(pDM_Odm->bBtEnabled)
{
pCfoTrack->bAdjust = false;
odm_SetCrystalCap(pDM_Odm, pCfoTrack->DefXCap);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Disable CFO tracking for BT!!\n"));
}
//4 1.6 Big jump
if(pCfoTrack->bAdjust)
{
if(CFO_ave > CFO_TH_XTAL_LOW)
Adjust_Xtal = Adjust_Xtal + ((CFO_ave - CFO_TH_XTAL_LOW) >> 2);
else if(CFO_ave < (-CFO_TH_XTAL_LOW))
Adjust_Xtal = Adjust_Xtal + ((CFO_TH_XTAL_LOW - CFO_ave) >> 2);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Crystal cap offset = %d\n", Adjust_Xtal));
}
//4 1.7 Adjust Crystal Cap.
if(pCfoTrack->bAdjust)
{
if(CFO_ave > CFO_TH_XTAL_LOW)
CrystalCap = CrystalCap + Adjust_Xtal;
else if(CFO_ave < (-CFO_TH_XTAL_LOW))
CrystalCap = CrystalCap - Adjust_Xtal;
if(CrystalCap > 0x3f)
CrystalCap = 0x3f;
else if (CrystalCap < 0)
CrystalCap = 0;
odm_SetCrystalCap(pDM_Odm, (u1Byte)CrystalCap);
}
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Crystal cap = 0x%x, Default Crystal cap = 0x%x\n",
pCfoTrack->CrystalCap, pCfoTrack->DefXCap));
//3 2. Dynamic ATC switch
if(CFO_ave < CFO_TH_ATC && CFO_ave > -CFO_TH_ATC)
{
odm_SetATCStatus(pDM_Odm, false);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Disable ATC!!\n"));
}
else
{
odm_SetATCStatus(pDM_Odm, true);
ODM_RT_TRACE(pDM_Odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking(): Enable ATC!!\n"));
}
}