/*
==========================================================================
Description:
Update StaCfg->ChannelList[] according to 1) Country Region 2) RF IC type,
and 3) PHY-mode user selected.
The outcome is used by driver when doing site survey.
IRQL = PASSIVE_LEVEL
IRQL = DISPATCH_LEVEL
==========================================================================
*/
VOID BuildChannelList(RTMP_ADAPTER *pAd)
{
UCHAR i, j, index=0, num=0;
PCH_DESC pChDesc = NULL;
BOOLEAN bRegionFound = FALSE;
PUCHAR pChannelList;
PUCHAR pChannelListFlag;
NdisZeroMemory(pAd->ChannelList, MAX_NUM_OF_CHANNELS * sizeof(CHANNEL_TX_POWER));
/* if not 11a-only mode, channel list starts from 2.4Ghz band*/
if (!WMODE_5G_ONLY(pAd->CommonCfg.PhyMode))
{
for (i = 0; i < Country_Region_GroupNum_2GHZ; i++)
{
if ((pAd->CommonCfg.CountryRegion & 0x7f) ==
Country_Region_ChDesc_2GHZ[i].RegionIndex)
{
pChDesc = Country_Region_ChDesc_2GHZ[i].pChDesc;
num = TotalChNum(pChDesc);
bRegionFound = TRUE;
break;
}
}
if (!bRegionFound)
{
DBGPRINT(RT_DEBUG_ERROR,("CountryRegion=%d not support", pAd->CommonCfg.CountryRegion));
return;
}
if (num > 0)
{
os_alloc_mem(NULL, (UCHAR **)&pChannelList, num * sizeof(UCHAR));
if (!pChannelList)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelList failed\n", __FUNCTION__));
return;
}
os_alloc_mem(NULL, (UCHAR **)&pChannelListFlag, num * sizeof(UCHAR));
if (!pChannelListFlag)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelListFlag failed\n", __FUNCTION__));
os_free_mem(NULL, pChannelList);
return;
}
for (i = 0; i < num; i++)
{
pChannelList[i] = GetChannel_2GHZ(pChDesc, i);
pChannelListFlag[i] = GetChannelFlag(pChDesc, i);
}
for (i = 0; i < num; i++)
{
for (j = 0; j < MAX_NUM_OF_CHANNELS; j++)
{
if (pChannelList[i] == pAd->TxPower[j].Channel)
NdisMoveMemory(&pAd->ChannelList[index+i], &pAd->TxPower[j], sizeof(CHANNEL_TX_POWER));
pAd->ChannelList[index + i].Flags = pChannelListFlag[i];
}
#ifdef DOT11_N_SUPPORT
if (N_ChannelGroupCheck(pAd, pAd->ChannelList[index + i].Channel))
pAd->ChannelList[index + i].Flags |= CHANNEL_40M_CAP;
#ifdef DOT11_VHT_AC
if (vht80_channel_group(pAd, pAd->ChannelList[index + i].Channel))
pAd->ChannelList[index + i].Flags |= CHANNEL_80M_CAP;
#endif /* DOT11_VHT_AC */
#endif /* DOT11_N_SUPPORT */
pAd->ChannelList[index+i].MaxTxPwr = 20;
}
index += num;
os_free_mem(NULL, pChannelList);
os_free_mem(NULL, pChannelListFlag);
}
bRegionFound = FALSE;
num = 0;
}
if (WMODE_CAP_5G(pAd->CommonCfg.PhyMode))
{
for (i = 0; i < Country_Region_GroupNum_5GHZ; i++)
{
if ((pAd->CommonCfg.CountryRegionForABand & 0x7f) ==
Country_Region_ChDesc_5GHZ[i].RegionIndex)
{
pChDesc = Country_Region_ChDesc_5GHZ[i].pChDesc;
num = TotalChNum(pChDesc);
bRegionFound = TRUE;
break;
}
}
if (!bRegionFound)
{
DBGPRINT(RT_DEBUG_ERROR,("CountryRegionABand=%d not support", pAd->CommonCfg.CountryRegionForABand));
return;
}
if (num > 0)
{
UCHAR RadarCh[16]={52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144};
#ifdef CONFIG_AP_SUPPORT
UCHAR q=0;
#endif /* CONFIG_AP_SUPPORT */
os_alloc_mem(NULL, (UCHAR **)&pChannelList, num * sizeof(UCHAR));
if (!pChannelList)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelList failed\n", __FUNCTION__));
return;
}
os_alloc_mem(NULL, (UCHAR **)&pChannelListFlag, num * sizeof(UCHAR));
if (!pChannelListFlag)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelListFlag failed\n", __FUNCTION__));
os_free_mem(NULL, pChannelList);
return;
}
for (i = 0; i < num; i++)
{
pChannelList[i] = GetChannel_5GHZ(pChDesc, i);
pChannelListFlag[i] = GetChannelFlag(pChDesc, i);
}
#ifdef CONFIG_AP_SUPPORT
for (i = 0; i < num; i++)
{
if((pAd->CommonCfg.bIEEE80211H == 0)|| ((pAd->CommonCfg.bIEEE80211H == 1) && (pAd->CommonCfg.RDDurRegion != FCC)))
{
pChannelList[q] = GetChannel_5GHZ(pChDesc, i);
pChannelListFlag[q] = GetChannelFlag(pChDesc, i);
q++;
}
/*Based on the requiremnt of FCC, some channles could not be used anymore when test DFS function.*/
else if ((pAd->CommonCfg.bIEEE80211H == 1) &&
(pAd->CommonCfg.RDDurRegion == FCC) &&
(pAd->Dot11_H.bDFSIndoor == 1))
{
if((GetChannel_5GHZ(pChDesc, i) < 116) || (GetChannel_5GHZ(pChDesc, i) > 128))
{
pChannelList[q] = GetChannel_5GHZ(pChDesc, i);
pChannelListFlag[q] = GetChannelFlag(pChDesc, i);
q++;
}
}
else if ((pAd->CommonCfg.bIEEE80211H == 1) &&
(pAd->CommonCfg.RDDurRegion == FCC) &&
(pAd->Dot11_H.bDFSIndoor == 0))
{
if((GetChannel_5GHZ(pChDesc, i) < 100) || (GetChannel_5GHZ(pChDesc, i) > 140) )
{
pChannelList[q] = GetChannel_5GHZ(pChDesc, i);
pChannelListFlag[q] = GetChannelFlag(pChDesc, i);
q++;
}
}
}
num = q;
#endif /* CONFIG_AP_SUPPORT */
for (i=0; i<num; i++)
{
for (j=0; j<MAX_NUM_OF_CHANNELS; j++)
{
if (pChannelList[i] == pAd->TxPower[j].Channel)
NdisMoveMemory(&pAd->ChannelList[index+i], &pAd->TxPower[j], sizeof(CHANNEL_TX_POWER));
pAd->ChannelList[index + i].Flags = pChannelListFlag[i];
}
#ifdef DOT11_N_SUPPORT
if (N_ChannelGroupCheck(pAd, pAd->ChannelList[index + i].Channel))
pAd->ChannelList[index + i].Flags |= CHANNEL_40M_CAP;
#ifdef DOT11_VHT_AC
if (vht80_channel_group(pAd, pAd->ChannelList[index + i].Channel))
pAd->ChannelList[index + i].Flags |= CHANNEL_80M_CAP;
#endif /* DOT11_VHT_AC */
#endif /* DOT11_N_SUPPORT */
for (j=0; j<16; j++)
{
if (pChannelList[i] == RadarCh[j])
{
pAd->ChannelList[index+i].DfsReq = TRUE;
#ifdef SMART_MESH
pAd->ChannelList[index+i].bDfsAPExist = FALSE;
#endif /* SMART_MESH */
}
}
#ifdef SMART_MESH
pAd->ChannelList[index+i].FalseCCA = 0;
#endif /* SMART_MESH */
pAd->ChannelList[index+i].MaxTxPwr = 20;
}
index += num;
os_free_mem(NULL, pChannelList);
os_free_mem(NULL, pChannelListFlag);
}
}
pAd->ChannelListNum = index;
DBGPRINT(RT_DEBUG_TRACE,("country code=%d/%d, RFIC=%d, PHY mode=%d, support %d channels\n",
pAd->CommonCfg.CountryRegion, pAd->CommonCfg.CountryRegionForABand, pAd->RfIcType, pAd->CommonCfg.PhyMode, pAd->ChannelListNum));
#ifdef RT_CFG80211_SUPPORT
for (i=0;i<pAd->ChannelListNum;i++)
{
CFG80211OS_ChanInfoInit(
pAd->pCfg80211_CB,
i,
pAd->ChannelList[i].Channel,
pAd->ChannelList[i].MaxTxPwr,
WMODE_CAP_N(pAd->CommonCfg.PhyMode),
(pAd->CommonCfg.RegTransmitSetting.field.BW == BW_20));
}
#endif /* RT_CFG80211_SUPPORT */
#ifdef DBG
for (i=0;i<pAd->ChannelListNum;i++)
{
DBGPRINT_RAW(RT_DEBUG_TRACE,("BuildChannel # %d :: Pwr0 = %d, Pwr1 =%d, Flags = %x\n ",
pAd->ChannelList[i].Channel,
pAd->ChannelList[i].Power,
pAd->ChannelList[i].Power2,
pAd->ChannelList[i].Flags));
}
#endif
}
/*
==========================================================================
Description:
Update StaCfg->ChannelList[] according to 1) Country Region 2) RF IC type,
and 3) PHY-mode user selected.
The outcome is used by driver when doing site survey.
IRQL = PASSIVE_LEVEL
IRQL = DISPATCH_LEVEL
==========================================================================
*/
VOID BuildChannelList(
IN PRTMP_ADAPTER pAd)
{
UCHAR i, j, index=0, num=0;
PCH_DESC pChDesc = NULL;
BOOLEAN bRegionFound = FALSE;
PUCHAR pChannelList;
PUCHAR pChannelListFlag;
NdisZeroMemory(pAd->ChannelList, MAX_NUM_OF_CHANNELS * sizeof(CHANNEL_TX_POWER));
/* if not 11a-only mode, channel list starts from 2.4Ghz band*/
if ((pAd->CommonCfg.PhyMode != PHY_11A)
#ifdef DOT11_N_SUPPORT
&& (pAd->CommonCfg.PhyMode != PHY_11AN_MIXED) && (pAd->CommonCfg.PhyMode != PHY_11N_5G)
#endif /* DOT11_N_SUPPORT */
)
{
for (i = 0; i < Country_Region_GroupNum_2GHZ; i++)
{
if ((pAd->CommonCfg.CountryRegion & 0x7f) ==
Country_Region_ChDesc_2GHZ[i].RegionIndex)
{
pChDesc = Country_Region_ChDesc_2GHZ[i].pChDesc;
num = TotalChNum(pChDesc);
bRegionFound = TRUE;
break;
}
}
if (!bRegionFound)
{
DBGPRINT(RT_DEBUG_ERROR,("CountryRegion=%d not support", pAd->CommonCfg.CountryRegion));
return;
}
if (num > 0)
{
os_alloc_mem(NULL, (UCHAR **)&pChannelList, num * sizeof(UCHAR));
if (!pChannelList)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelList failed\n", __FUNCTION__));
return;
}
os_alloc_mem(NULL, (UCHAR **)&pChannelListFlag, num * sizeof(UCHAR));
if (!pChannelListFlag)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelListFlag failed\n", __FUNCTION__));
os_free_mem(NULL, pChannelList);
return;
}
for (i = 0; i < num; i++)
{
pChannelList[i] = GetChannel_2GHZ(pChDesc, i);
pChannelListFlag[i] = GetChannelFlag(pChDesc, i);
}
for (i = 0; i < num; i++)
{
for (j = 0; j < MAX_NUM_OF_CHANNELS; j++)
{
if (pChannelList[i] == pAd->TxPower[j].Channel)
NdisMoveMemory(&pAd->ChannelList[index+i], &pAd->TxPower[j], sizeof(CHANNEL_TX_POWER));
pAd->ChannelList[index + i].Flags = pChannelListFlag[i];
}
#ifdef DOT11_N_SUPPORT
if (N_ChannelGroupCheck(pAd, pAd->ChannelList[index + i].Channel))
pAd->ChannelList[index + i].Flags |= CHANNEL_40M_CAP;
#endif /* DOT11_N_SUPPORT */
pAd->ChannelList[index+i].MaxTxPwr = 20;
}
index += num;
os_free_mem(NULL, pChannelList);
os_free_mem(NULL, pChannelListFlag);
}
bRegionFound = FALSE;
num = 0;
}
if ((pAd->CommonCfg.PhyMode == PHY_11A) || (pAd->CommonCfg.PhyMode == PHY_11ABG_MIXED)
#ifdef DOT11_N_SUPPORT
|| (pAd->CommonCfg.PhyMode == PHY_11ABGN_MIXED) || (pAd->CommonCfg.PhyMode == PHY_11AN_MIXED)
|| (pAd->CommonCfg.PhyMode == PHY_11AGN_MIXED) || (pAd->CommonCfg.PhyMode == PHY_11N_5G)
#endif /* DOT11_N_SUPPORT */
)
{
for (i = 0; i < Country_Region_GroupNum_5GHZ; i++)
{
if ((pAd->CommonCfg.CountryRegionForABand & 0x7f) ==
Country_Region_ChDesc_5GHZ[i].RegionIndex)
{
pChDesc = Country_Region_ChDesc_5GHZ[i].pChDesc;
num = TotalChNum(pChDesc);
bRegionFound = TRUE;
break;
}
}
if (!bRegionFound)
{
DBGPRINT(RT_DEBUG_ERROR,("CountryRegionABand=%d not support", pAd->CommonCfg.CountryRegionForABand));
return;
}
if (num > 0)
{
UCHAR RadarCh[15]= {52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
os_alloc_mem(NULL, (UCHAR **)&pChannelList, num * sizeof(UCHAR));
if (!pChannelList)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelList failed\n", __FUNCTION__));
return;
}
os_alloc_mem(NULL, (UCHAR **)&pChannelListFlag, num * sizeof(UCHAR));
if (!pChannelListFlag)
{
DBGPRINT(RT_DEBUG_ERROR,("%s:Allocate memory for ChannelListFlag failed\n", __FUNCTION__));
os_free_mem(NULL, pChannelList);
return;
}
for (i = 0; i < num; i++)
{
pChannelList[i] = GetChannel_5GHZ(pChDesc, i);
pChannelListFlag[i] = GetChannelFlag(pChDesc, i);
}
for (i=0; i<num; i++)
{
for (j=0; j<MAX_NUM_OF_CHANNELS; j++)
{
if (pChannelList[i] == pAd->TxPower[j].Channel)
NdisMoveMemory(&pAd->ChannelList[index+i], &pAd->TxPower[j], sizeof(CHANNEL_TX_POWER));
pAd->ChannelList[index + i].Flags = pChannelListFlag[i];
}
#ifdef DOT11_N_SUPPORT
if (N_ChannelGroupCheck(pAd, pAd->ChannelList[index + i].Channel))
pAd->ChannelList[index + i].Flags |= CHANNEL_40M_CAP;
#endif /* DOT11_N_SUPPORT */
for (j=0; j<15; j++)
{
if (pChannelList[i] == RadarCh[j])
pAd->ChannelList[index+i].DfsReq = TRUE;
}
pAd->ChannelList[index+i].MaxTxPwr = 20;
}
index += num;
os_free_mem(NULL, pChannelList);
os_free_mem(NULL, pChannelListFlag);
}
}
pAd->ChannelListNum = index;
DBGPRINT(RT_DEBUG_TRACE,("country code=%d/%d, RFIC=%d, PHY mode=%d, support %d channels\n",
pAd->CommonCfg.CountryRegion, pAd->CommonCfg.CountryRegionForABand, pAd->RfIcType, pAd->CommonCfg.PhyMode, pAd->ChannelListNum));
#ifdef RT_CFG80211_SUPPORT
for (i=0; i<pAd->ChannelListNum; i++)
{
CFG80211OS_ChanInfoInit(
pAd->pCfg80211_CB,
i,
pAd->ChannelList[i].Channel,
pAd->ChannelList[i].MaxTxPwr,
(pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED),
(pAd->CommonCfg.RegTransmitSetting.field.BW == BW_20));
}
#endif /* RT_CFG80211_SUPPORT */
#ifdef DBG
for (i=0; i<pAd->ChannelListNum; i++)
{
DBGPRINT_RAW(RT_DEBUG_TRACE,("BuildChannel # %d :: Pwr0 = %d, Pwr1 =%d, Flags = %x\n ",
pAd->ChannelList[i].Channel,
pAd->ChannelList[i].Power,
pAd->ChannelList[i].Power2,
pAd->ChannelList[i].Flags));
}
#endif
}
static inline UCHAR SelectClearChannelApCnt(
IN PRTMP_ADAPTER pAd
)
{
/*PBSSINFO pBssInfoTab = pAd->pBssInfoTab; */
PCHANNELINFO pChannelInfo = pAd->pChannelInfo;
/*BSSENTRY *pBss; */
UCHAR channel_index = 0,dirty,base = 0;
UCHAR final_channel = 0;
if(pChannelInfo == NULL)
{
DBGPRINT(RT_DEBUG_ERROR, ("pAd->pChannelInfo equal NULL.\n"));
return (FirstChannel(pAd));
}
/* Calculate Dirtiness */
for (channel_index=0 ; channel_index < pAd->ChannelListNum ; channel_index++)
{
if (pChannelInfo->ApCnt[channel_index] > 0)
{
INT ll;
pChannelInfo->dirtyness[channel_index] += 30;
/*5G */
if (pChannelInfo->IsABand)
{
int Channel = pAd->ChannelList[channel_index].Channel;
/*Make secondary channel dirty */
if(pAd->CommonCfg.RegTransmitSetting.field.BW == BW_40)
{
if (Channel > 14)
{
if ((Channel == 36) || (Channel == 44)
|| (Channel == 52) || (Channel== 60)
|| (Channel == 100) || (Channel == 108)
|| (Channel == 116) || (Channel == 124)
|| (Channel == 132) || (Channel == 149)
|| (Channel == 157))
{
if (channel_index + 1 < MAX_NUM_OF_CHANNELS)
if(pAd->ChannelList[channel_index+1].Channel - pAd->ChannelList[channel_index].Channel == 4)
pChannelInfo->dirtyness[channel_index+1] += 1;
}
else if ((Channel == 40) || (Channel == 48)
|| (Channel == 56) || (Channel == 64)
|| (Channel == 104) || (Channel == 112)
|| (Channel == 120) || (Channel == 128)
|| (Channel == 136) || (Channel== 153)
|| (Channel == 161))
{
if(channel_index - 1 >= 0)
if(pAd->ChannelList[channel_index].Channel - pAd->ChannelList[channel_index-1].Channel == 4)
pChannelInfo->dirtyness[channel_index-1] += 1;
}
}
}
#ifdef DOT11_VHT_AC
else if(pAd->CommonCfg.RegTransmitSetting.field.BW == BW_80) {
INT vht_ch_idx = get_vht_neighbor_index(pAd->ChannelList[channel_index].Channel);
pChannelInfo->dirtyness[vht_ch_idx+channel_index]++;
pChannelInfo->dirtyness[vht_ch_idx+(channel_index+1)]++;
pChannelInfo->dirtyness[vht_ch_idx+(channel_index+2)]++;
pChannelInfo->dirtyness[vht_ch_idx+(channel_index+3)]++;
}
#endif /* DOT11_VHT_AC */
}
/*2.4G */
if (!pChannelInfo->IsABand)
{
int ChanOffset = 0;
if((pAd->CommonCfg.RegTransmitSetting.field.BW == BW_40)&&
(pAd->CommonCfg.RegTransmitSetting.field.EXTCHA == EXTCHA_BELOW))
{
/*
BW is 40Mhz
the distance between two channel to prevent interference
is 4 channel width plus 4 channel width (secondary channel)
*/
ChanOffset = 8;
}
else
{
/*
BW is 20Mhz
The channel width of 2.4G band is 5Mhz.
The distance between two channel to prevent interference is 4 channel width
*/
ChanOffset = 4;
}
for (ll = channel_index + 1; ll < (channel_index + ChanOffset + 1); ll++)
{
if (ll < MAX_NUM_OF_CHANNELS)
pChannelInfo->dirtyness[ll]++;
}
if((pAd->CommonCfg.RegTransmitSetting.field.BW == BW_40)&&
(pAd->CommonCfg.RegTransmitSetting.field.EXTCHA == EXTCHA_ABOVE))
{
/* BW is 40Mhz */
ChanOffset = 8;
}
else
{
/* BW is 20Mhz */
ChanOffset = 4;
}
for (ll = channel_index - 1; ll > (channel_index - ChanOffset - 1); ll--)
{
if (ll >= 0)
pChannelInfo->dirtyness[ll]++;
}
}
}
}/* Calculate Dirtiness */
AutoChannelSkipListSetDirty(pAd);
printk("=====================================================\n");
for (channel_index=0 ; channel_index < pAd->ChannelListNum ; channel_index++)
/* debug messages */
printk("Channel %d : Dirty = %ld, ApCnt=%ld, Busy Time = %d, Skip Channel = %s\n",
pAd->ChannelList[channel_index].Channel,
pChannelInfo->dirtyness[channel_index],
pChannelInfo->ApCnt[channel_index],
pChannelInfo->chanbusytime[channel_index],
(pChannelInfo->SkipList[channel_index] == TRUE) ? "TRUE" : "FALSE");
printk("=====================================================\n");
pAd->ApCfg.AutoChannel_Channel = 0;
/* RULE 1. pick up a good channel that no one used */
for (channel_index=0 ; channel_index < pAd->ChannelListNum ; channel_index++)
{
if (pChannelInfo->SkipList[channel_index] == TRUE)
continue;
if ((pAd->ApCfg.bAvoidDfsChannel == TRUE)
&&(pChannelInfo->IsABand == TRUE)
&& RadarChannelCheck(pAd, pAd->ChannelList[channel_index].Channel))
continue;
#ifdef AP_QLOAD_SUPPORT
/* QLOAD ALARM */
if (QBSS_LoadIsBusyTimeAccepted(pAd,
pChannelInfo->chanbusytime[channel_index]) == FALSE)
continue;
#endif /* AP_QLOAD_SUPPORT */
/* Check BW40/80 channel group */
if (pAd->CommonCfg.RegTransmitSetting.field.BW == BW_40) {
if (!N_ChannelGroupCheck(pAd, pAd->ChannelList[channel_index].Channel)) {
printk ("channel_%d is not in BW_40 channel group\n",
pAd->ChannelList[channel_index].Channel);
continue;
}
}
#ifdef DOT11_VHT_AC
else if (pAd->CommonCfg.RegTransmitSetting.field.BW == BW_80) {
if (!AC_ChannelGroupCheck(pAd, pAd->ChannelList[channel_index].Channel)) {
printk ("channel_%d is not in BW_80 channel group\n",
pAd->ChannelList[channel_index].Channel);
continue;
}
}
#endif /* DOT11_VHT_AC */
if (pChannelInfo->dirtyness[channel_index] == 0)
break;
}
if (channel_index < pAd->ChannelListNum)
{
printk("Rule 1 APCnt : dirtiness == 0 (no one used and no interference) ==> Select Channel %d\n", pAd->ChannelList[channel_index].Channel);
return pAd->ChannelList[channel_index].Channel;
}
/* RULE 2. if not available, then co-use a channel that's no interference (dirtyness=30) */
/* RULE 3. if not available, then co-use a channel that has minimum interference (dirtyness=31,32) */
for (dirty = 30; dirty <= 32; dirty++)
{
BOOLEAN candidate[MAX_NUM_OF_CHANNELS+1], candidate_num=0;
UCHAR min_ApCnt = 255;
final_channel = 0;
NdisZeroMemory(candidate, MAX_NUM_OF_CHANNELS+1);
for (channel_index=0 ; channel_index < pAd->ChannelListNum ; channel_index++)
{
if (pChannelInfo->SkipList[channel_index] == TRUE)
continue;
if (pChannelInfo->dirtyness[channel_index] == dirty)
{
candidate[channel_index]=TRUE;
candidate_num++;
}
}
/* if there's more than 1 candidate, pick up the channel with minimum RSSI */
if (candidate_num)
{
for (channel_index=0 ; channel_index < pAd->ChannelListNum ; channel_index++)
{
#ifdef AP_QLOAD_SUPPORT
/* QLOAD ALARM */
/* when busy time of a channel > threshold, skip it */
/* TODO: Use weight for different references to do channel selection */
if (QBSS_LoadIsBusyTimeAccepted(pAd,
pChannelInfo->chanbusytime[channel_index]) == FALSE)
{
/* check next one */
continue;
}
#endif /* AP_QLOAD_SUPPORT */
if (candidate[channel_index] && (pChannelInfo->ApCnt[channel_index] < min_ApCnt))
{
if((pAd->CommonCfg.RegTransmitSetting.field.BW == BW_40)
&& (BW40_ChannelCheck(pAd->ChannelList[channel_index].Channel) == FALSE)) {
continue;
}
#ifdef DOT11_VHT_AC
else if (pAd->CommonCfg.RegTransmitSetting.field.BW == BW_80) {
if (!AC_ChannelGroupCheck(pAd, pAd->ChannelList[channel_index].Channel)) {
/* not in the BW_80 channel group */
continue;
}
}
#endif /* DOT11_VHT_AC */
if ((pAd->ApCfg.bAvoidDfsChannel == TRUE)
&&(pChannelInfo->IsABand == TRUE)
&& RadarChannelCheck(pAd, pAd->ChannelList[channel_index].Channel))
continue;
final_channel = pAd->ChannelList[channel_index].Channel;
min_ApCnt = pChannelInfo->ApCnt[channel_index];
}
}
if (final_channel != 0)
{
printk("Rule 2 APCnt : minimum APCnt with minimum interference(dirtiness: 30~32) ==> Select Channel %d\n", final_channel);
printk(" Dirtiness = %d , Min ApCnt = %d\n", dirty, min_ApCnt);
return final_channel;
}
}
}
/* RULE 3. still not available, pick up the random channel */
base = RandomByte2(pAd);
for (channel_index=0 ; channel_index < pAd->ChannelListNum ; channel_index++)
{
final_channel = pAd->ChannelList[(base + channel_index) % pAd->ChannelListNum].Channel;
if (AutoChannelSkipListCheck(pAd, final_channel))
continue;
if (pAd->CommonCfg.RegTransmitSetting.field.BW == BW_40) {
if (!N_ChannelGroupCheck(pAd, pAd->ChannelList[channel_index].Channel)) {
/* not in the BW_40 channel group */
continue;
}
}
#ifdef DOT11_VHT_AC
else if (pAd->CommonCfg.RegTransmitSetting.field.BW == BW_80) {
if (!AC_ChannelGroupCheck(pAd, pAd->ChannelList[channel_index].Channel)) {
/* not in the BW_80 channel group */
continue;
}
}
#endif /* DOT11_VHT_AC */
if ((pAd->ApCfg.bAvoidDfsChannel == TRUE)
&&(pChannelInfo->IsABand == TRUE)
&& RadarChannelCheck(pAd, final_channel))
continue;
break;
}
printk("Rule 3 APCnt : Randomly Select ==> Select Channel %d\n",final_channel);
return final_channel;
}
