/*
==========================================================================
Description:
This routine is called at initialization. It returns a channel number
that complies to regulation domain and less interference with current
enviornment.
Return:
ch - channel number that
NOTE:
The retruned channel number is guaranteed to comply to current regulation
domain that recorded in pAd->CommonCfg.CountryRegion
Usage:
1.) iwpriv ra0 set AutoChannelSel=1
Ues the number of AP and inference status to choose
2.) iwpriv ra0 set AutoChannelSel=2
Ues the False CCA count and Rssi to choose
==========================================================================
*/
UCHAR APAutoSelectChannel(
IN PRTMP_ADAPTER pAd,
IN ChannelSel_Alg Alg)
{
UCHAR ch = 0, i;
/* passive scan channel 1-14. collect statistics */
/*
In the autochannel select case. AP didn't get channel yet.
So have no way to determine which Band AP used by channel number.
*/
/* Init some structures before doing AutoChannelSelect() */
APAutoChannelInit(pAd);
if (( Alg == ChannelAlgRandom ) && (pAd->pChannelInfo->IsABand == TRUE))
{ /*for Dfs */
ch = SelectClearChannelRandom(pAd);
}
else
{
#ifdef MICROWAVE_OVEN_SUPPORT
pAd->CommonCfg.MO_Cfg.bEnable = FALSE;
AsicMeasureFalseCCA(pAd);
#endif
/*find RSSI in each channel */
for (i=0; i<pAd->ChannelListNum; i++)
{
AsicSwitchChannel(pAd, pAd->ChannelList[i].Channel, TRUE);
AsicLockChannel(pAd, pAd->ChannelList[i].Channel);/*do nothing */
pAd->ApCfg.current_channel_index = i;
pAd->ApCfg.AutoChannel_Channel = pAd->ChannelList[i].Channel;
#ifdef AP_QLOAD_SUPPORT
if (QLOAD_DOES_ALARM_OCCUR(pAd))
{ /* QLOAD ALARM, ever alarm from QLOAD module */
OS_WAIT(400); /* wait for 400 ms at each channel. */
}
else
#endif /* AP_QLOAD_SUPPORT */
{
OS_WAIT(200); /* wait for 200 ms at each channel. */
}
UpdateChannelInfo(pAd, i,Alg);
}
ch = SelectBestChannel(pAd, Alg);
}
return ch;
}
/*
==========================================================================
Description:
This routine is called at initialization. It returns a channel number
that complies to regulation domain and less interference with current
enviornment.
Return:
ch - channel number that
NOTE:
The retruned channel number is guaranteed to comply to current regulation
domain that recorded in pAd->CommonCfg.CountryRegion
Usage:
1.) iwpriv ra0 set AutoChannelSel=1
Ues the number of AP and inference status to choose
2.) iwpriv ra0 set AutoChannelSel=2
Ues the False CCA count and Rssi to choose
==========================================================================
*/
UCHAR APAutoSelectChannel(
IN PRTMP_ADAPTER pAd,
IN ChannelSel_Alg Alg)
{
UCHAR ch = 0, i;
// passive scan channel 1-14. collect statistics
// In the autochannel select case. AP didn't get channel yet.
// So have no way to determine which Band AP used by channel number.
//
// Init some structures before doing AutoChannelSelect()
//
APAutoChannelInit(pAd);
if (( Alg == ChannelAlgRandom ) && (pAd->pChannelInfo->IsABand == TRUE))
{ //for Dfs
ch = SelectClearChannelRandom(pAd);
}
else
{
//find RSSI in each channel //
for (i=0; i<pAd->ChannelListNum; i++)
{
AsicSwitchChannel(pAd, pAd->ChannelList[i].Channel, TRUE);
AsicLockChannel(pAd, pAd->ChannelList[i].Channel);//do nothing
pAd->ApCfg.current_channel_index = i;
pAd->ApCfg.AutoChannel_Channel = pAd->ChannelList[i].Channel;
#ifdef AP_QLOAD_SUPPORT
if (QLOAD_DOES_ALARM_OCCUR(pAd))
{ /* QLOAD ALARM, ever alarm from QLOAD module */
OS_WAIT(400); // wait for 400 ms at each channel.
}
else
#endif
{
OS_WAIT(200); // wait for 200 ms at each channel.
}
UpdateChannelInfo(pAd, i,Alg);
}
ch = SelectBestChannel(pAd, Alg);
}
return ch;
}
/*
==========================================================================
Description:
This routine is called at initialization. It returns a channel number
that complies to regulation domain and less interference with current
enviornment.
Return:
ch - channel number that
NOTE:
The retruned channel number is guaranteed to comply to current regulation
domain that recorded in pAd->CommonCfg.CountryRegion
Usage:
1.) iwpriv ra0 set AutoChannelSel=1
Ues the number of AP and inference status to choose
2.) iwpriv ra0 set AutoChannelSel=2
Ues the False CCA count and Rssi to choose
==========================================================================
*/
UCHAR APAutoSelectChannel(RTMP_ADAPTER *pAd, ChannelSel_Alg Alg)
{
UCHAR ch = 0;
#ifndef SUPPORT_ACS_BY_SCAN
UCHAR i = 0;
#endif
/* passive scan channel 1-14. collect statistics */
DBGPRINT(RT_DEBUG_TRACE, ("Entering ACS (Alg=%d)...\n", Alg));
/*
In the autochannel select case. AP didn't get channel yet.
So have no way to determine which Band AP used by channel number.
*/
/* Init some structures before doing AutoChannelSelect() */
APAutoChannelInit(pAd);
if (( Alg == ChannelAlgRandom ) && (pAd->pChannelInfo->IsABand == TRUE))
{ /*for Dfs */
DBGPRINT(RT_DEBUG_TRACE, ("ACS: Select from random\n"));
ch = SelectClearChannelRandom(pAd);
}
else
{
#ifndef SUPPORT_ACS_BY_SCAN
/*find RSSI in each channel */
DBGPRINT(RT_DEBUG_TRACE, ("Start ACS scan (total channel = %d, stay_time = %dms)\n", pAd->ChannelListNum, AUTO_CHANNEL_SEL_TIMEOUT));
for (i=0; i<pAd->ChannelListNum; i++)
{
AsicSwitchChannel(pAd, pAd->ChannelList[i].Channel, TRUE);
AsicLockChannel(pAd, pAd->ChannelList[i].Channel); /*do nothing */
pAd->ApCfg.current_channel_index = i;
pAd->ApCfg.AutoChannel_Channel = pAd->ChannelList[i].Channel;
OS_WAIT(AUTO_CHANNEL_SEL_TIMEOUT); /* wait for 200 ms at each channel. */
UpdateChannelInfo(pAd, i, Alg);
}
DBGPRINT(RT_DEBUG_TRACE, ("ACS scan complete)\n"));
#ifdef SUPPORT_ACS_ALL_CHANNEL_RANK
if ((ch = ACS_PerformAlgorithm(pAd, Alg)) <= 0)
{
/* return ch is the total number of channels in the rank list */
DBGPRINT(RT_DEBUG_ERROR, ("ACS: Error perform algorithm!\n"));
}
else
DBGPRINT(RT_DEBUG_ERROR, ("ACS: Perform algorithm OK (ch_count=%d)!\n", ch));
#else
ch = SelectBestChannel(pAd, Alg);
#endif /* SUPPORT_ACS_ALL_CHANNEL_RANK */
#endif /* SUPPORT_ACS_BY_SCAN */
}
return ch;
}