/*
==========================================================================
Description:
Scan next channel
==========================================================================
*/
VOID ScanNextChannel(
IN PRTMP_ADAPTER pAd,
IN UCHAR OpMode)
{
UCHAR ScanType = pAd->MlmeAux.ScanType;
UINT ScanTimeIn5gChannel = SHORT_CHANNEL_TIME;
BOOLEAN ScanPending = FALSE;
RALINK_TIMER_STRUCT *sc_timer;
UINT stay_time = 0;
#ifdef RALINK_ATE
/* Nothing to do in ATE mode. */
if (ATE_ON(pAd))
return;
#endif /* RALINK_ATE */
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
if (MONITOR_ON(pAd))
return;
}
ScanPending = ((pAd->StaCfg.bImprovedScan) && (pAd->StaCfg.ScanChannelCnt>=7));
#endif /* CONFIG_STA_SUPPORT */
#ifdef RT_CFG80211_SUPPORT
#ifdef CONFIG_STA_SUPPORT
if ( (pAd->pCfg80211ChanList != NULL) && (pAd->MlmeAux.Channel != 0))
{
UINT32 ChanId;
for ( ChanId = 0 ; ChanId <pAd->Cfg80211ChanListLan ; ChanId++ )
{
if ( pAd->pCfg80211ChanList[ChanId] >= pAd->MlmeAux.Channel )
{
pAd->MlmeAux.Channel = pAd->pCfg80211ChanList[ChanId];
break;
}
}
}
#endif /* CONFIG_STA_SUPPORT */
#endif /* RT_CFG80211_SUPPORT */
if ((pAd->MlmeAux.Channel == 0) || ScanPending)
{
scan_ch_restore(pAd, OpMode);
}
#ifdef RTMP_MAC_USB
#ifdef CONFIG_STA_SUPPORT
else if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST) &&
(OpMode == OPMODE_STA))
{
pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
MlmeCntlConfirm(pAd, MT2_SCAN_CONF, MLME_FAIL_NO_RESOURCE);
}
#endif /* CONFIG_STA_SUPPORT */
#endif /* RTMP_MAC_USB */
else
{
#ifdef CONFIG_STA_SUPPORT
if (OpMode == OPMODE_STA)
{
/* BBP and RF are not accessible in PS mode, we has to wake them up first*/
if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE))
AsicForceWakeup(pAd, TRUE);
/* leave PSM during scanning. otherwise we may lost ProbeRsp & BEACON*/
if (pAd->StaCfg.Psm == PWR_SAVE)
RTMP_SET_PSM_BIT(pAd, PWR_ACTIVE);
}
#endif /* CONFIG_STA_SUPPORT */
AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, TRUE);
AsicLockChannel(pAd, pAd->MlmeAux.Channel);
#ifdef CONFIG_STA_SUPPORT
if (OpMode == OPMODE_STA)
{
BOOLEAN bScanPassive = FALSE;
if (pAd->MlmeAux.Channel > 14)
{
if ((pAd->CommonCfg.bIEEE80211H == 1)
&& RadarChannelCheck(pAd, pAd->MlmeAux.Channel))
bScanPassive = TRUE;
}
#ifdef CARRIER_DETECTION_SUPPORT
if (pAd->CommonCfg.CarrierDetect.Enable == TRUE)
bScanPassive = TRUE;
#endif /* CARRIER_DETECTION_SUPPORT */
if (bScanPassive)
{
ScanType = SCAN_PASSIVE;
ScanTimeIn5gChannel = MIN_CHANNEL_TIME;
}
}
#endif /* CONFIG_STA_SUPPORT */
/* Check if channel if passive scan under current regulatory domain */
if (CHAN_PropertyCheck(pAd, pAd->MlmeAux.Channel, CHANNEL_PASSIVE_SCAN) == TRUE)
ScanType = SCAN_PASSIVE;
if (OpMode == OPMODE_AP)
sc_timer = &pAd->MlmeAux.APScanTimer;
else
sc_timer = &pAd->MlmeAux.ScanTimer;
/* We need to shorten active scan time in order for WZC connect issue */
/* Chnage the channel scan time for CISCO stuff based on its IAPP announcement */
if (ScanType == FAST_SCAN_ACTIVE)
stay_time = FAST_ACTIVE_SCAN_TIME;
else /* must be SCAN_PASSIVE or SCAN_ACTIVE*/
{
#ifdef CONFIG_STA_SUPPORT
pAd->StaCfg.ScanChannelCnt++;
#endif /* CONFIG_STA_SUPPORT */
#ifdef CONFIG_AP_SUPPORT
if ((OpMode == OPMODE_AP) && (pAd->ApCfg.bAutoChannelAtBootup))
stay_time = AUTO_CHANNEL_SEL_TIMEOUT;
else
#endif /* CONFIG_AP_SUPPORT */
if (WMODE_CAP_2G(pAd->CommonCfg.PhyMode) &&
WMODE_CAP_5G(pAd->CommonCfg.PhyMode))
{
if (pAd->MlmeAux.Channel > 14)
stay_time = ScanTimeIn5gChannel;
else
stay_time = MIN_CHANNEL_TIME;
}
else
stay_time = MAX_CHANNEL_TIME;
}
RTMPSetTimer(sc_timer, stay_time);
if (SCAN_MODE_ACT(ScanType))
{
if (scan_active(pAd, OpMode, ScanType) == FALSE)
return;
}
/* For SCAN_CISCO_PASSIVE, do nothing and silently wait for beacon or other probe reponse*/
#ifdef CONFIG_STA_SUPPORT
if (OpMode == OPMODE_STA)
pAd->Mlme.SyncMachine.CurrState = SCAN_LISTEN;
#endif /* CONFIG_STA_SUPPORT */
#ifdef CONFIG_AP_SUPPORT
if (OpMode == OPMODE_AP)
pAd->Mlme.ApSyncMachine.CurrState = AP_SCAN_LISTEN;
#endif /* CONFIG_AP_SUPPORT */
}
}
/*
==========================================================================
Description:
Scan next channel
==========================================================================
*/
void ScanNextChannel(struct rt_rtmp_adapter *pAd)
{
struct rt_header_802_11 Hdr80211;
u8 *pOutBuffer = NULL;
int NStatus;
unsigned long FrameLen = 0;
u8 SsidLen = 0, ScanType = pAd->MlmeAux.ScanType, BBPValue = 0;
u16 Status;
struct rt_header_802_11 * pHdr80211;
u32 ScanTimeIn5gChannel = SHORT_CHANNEL_TIME;
{
if (MONITOR_ON(pAd))
return;
}
if (pAd->MlmeAux.Channel == 0) {
if ((pAd->CommonCfg.BBPCurrentBW == BW_40)
&& (INFRA_ON(pAd)
|| (pAd->OpMode == OPMODE_AP))
) {
AsicSwitchChannel(pAd, pAd->CommonCfg.CentralChannel,
FALSE);
AsicLockChannel(pAd, pAd->CommonCfg.CentralChannel);
RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
BBPValue &= (~0x18);
BBPValue |= 0x10;
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
DBGPRINT(RT_DEBUG_TRACE,
("SYNC - End of SCAN, restore to 40MHz channel %d, Total BSS[%02d]\n",
pAd->CommonCfg.CentralChannel,
pAd->ScanTab.BssNr));
} else {
AsicSwitchChannel(pAd, pAd->CommonCfg.Channel, FALSE);
AsicLockChannel(pAd, pAd->CommonCfg.Channel);
DBGPRINT(RT_DEBUG_TRACE,
("SYNC - End of SCAN, restore to channel %d, Total BSS[%02d]\n",
pAd->CommonCfg.Channel, pAd->ScanTab.BssNr));
}
{
/* */
/* To prevent data lost. */
/* Send an NULL data with turned PSM bit on to current associated AP before SCAN progress. */
/* Now, we need to send an NULL data with turned PSM bit off to AP, when scan progress done */
/* */
if (OPSTATUS_TEST_FLAG
(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED)
&& (INFRA_ON(pAd))) {
NStatus =
MlmeAllocateMemory(pAd,
(void *)& pOutBuffer);
if (NStatus == NDIS_STATUS_SUCCESS) {
pHdr80211 = (struct rt_header_802_11 *) pOutBuffer;
MgtMacHeaderInit(pAd, pHdr80211,
SUBTYPE_NULL_FUNC, 1,
pAd->CommonCfg.Bssid,
pAd->CommonCfg.Bssid);
pHdr80211->Duration = 0;
pHdr80211->FC.Type = BTYPE_DATA;
pHdr80211->FC.PwrMgmt =
(pAd->StaCfg.Psm == PWR_SAVE);
/* Send using priority queue */
MiniportMMRequest(pAd, 0, pOutBuffer,
sizeof
(struct rt_header_802_11));
DBGPRINT(RT_DEBUG_TRACE,
("MlmeScanReqAction -- Send PSM Data frame\n"));
MlmeFreeMemory(pAd, pOutBuffer);
RTMPusecDelay(5000);
}
}
pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
Status = MLME_SUCCESS;
MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF,
2, &Status);
}
RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_BSS_SCAN_IN_PROGRESS);
}
#ifdef RTMP_MAC_USB
else if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)
&& (pAd->OpMode == OPMODE_STA)) {
pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
MlmeCntlConfirm(pAd, MT2_SCAN_CONF, MLME_FAIL_NO_RESOURCE);
}
#endif /* RTMP_MAC_USB // */
else {
{
/* BBP and RF are not accessible in PS mode, we has to wake them up first */
if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE))
AsicForceWakeup(pAd, TRUE);
/* leave PSM during scanning. otherwise we may lost ProbeRsp & BEACON */
if (pAd->StaCfg.Psm == PWR_SAVE)
RTMP_SET_PSM_BIT(pAd, PWR_ACTIVE);
}
AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, TRUE);
AsicLockChannel(pAd, pAd->MlmeAux.Channel);
{
if (pAd->MlmeAux.Channel > 14) {
if ((pAd->CommonCfg.bIEEE80211H == 1)
&& RadarChannelCheck(pAd,
pAd->MlmeAux.
Channel)) {
ScanType = SCAN_PASSIVE;
ScanTimeIn5gChannel = MIN_CHANNEL_TIME;
}
}
}
/*Global country domain(ch1-11:active scan, ch12-14 passive scan) */
if ((pAd->MlmeAux.Channel <= 14) && (pAd->MlmeAux.Channel >= 12)
&& ((pAd->CommonCfg.CountryRegion & 0x7f) ==
REGION_31_BG_BAND)) {
ScanType = SCAN_PASSIVE;
}
/* We need to shorten active scan time in order for WZC connect issue */
/* Chnage the channel scan time for CISCO stuff based on its IAPP announcement */
if (ScanType == FAST_SCAN_ACTIVE)
RTMPSetTimer(&pAd->MlmeAux.ScanTimer,
FAST_ACTIVE_SCAN_TIME);
else /* must be SCAN_PASSIVE or SCAN_ACTIVE */
{
if ((pAd->CommonCfg.PhyMode == PHY_11ABG_MIXED)
|| (pAd->CommonCfg.PhyMode == PHY_11ABGN_MIXED)
|| (pAd->CommonCfg.PhyMode == PHY_11AGN_MIXED)
) {
if (pAd->MlmeAux.Channel > 14)
RTMPSetTimer(&pAd->MlmeAux.ScanTimer,
ScanTimeIn5gChannel);
else
RTMPSetTimer(&pAd->MlmeAux.ScanTimer,
MIN_CHANNEL_TIME);
} else
RTMPSetTimer(&pAd->MlmeAux.ScanTimer,
MAX_CHANNEL_TIME);
}
if ((ScanType == SCAN_ACTIVE)
|| (ScanType == FAST_SCAN_ACTIVE)
) {
NStatus = MlmeAllocateMemory(pAd, &pOutBuffer); /*Get an unused nonpaged memory */
if (NStatus != NDIS_STATUS_SUCCESS) {
DBGPRINT(RT_DEBUG_TRACE,
("SYNC - ScanNextChannel() allocate memory fail\n"));
{
pAd->Mlme.SyncMachine.CurrState =
SYNC_IDLE;
Status = MLME_FAIL_NO_RESOURCE;
MlmeEnqueue(pAd,
MLME_CNTL_STATE_MACHINE,
MT2_SCAN_CONF, 2, &Status);
}
return;
}
/* There is no need to send broadcast probe request if active scan is in effect. */
if ((ScanType == SCAN_ACTIVE)
|| (ScanType == FAST_SCAN_ACTIVE)
)
SsidLen = pAd->MlmeAux.SsidLen;
else
SsidLen = 0;
MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0,
BROADCAST_ADDR, BROADCAST_ADDR);
MakeOutgoingFrame(pOutBuffer, &FrameLen,
sizeof(struct rt_header_802_11), &Hdr80211, 1,
&SsidIe, 1, &SsidLen, SsidLen,
pAd->MlmeAux.Ssid, 1, &SupRateIe, 1,
&pAd->CommonCfg.SupRateLen,
pAd->CommonCfg.SupRateLen,
pAd->CommonCfg.SupRate, END_OF_ARGS);
if (pAd->CommonCfg.ExtRateLen) {
unsigned long Tmp;
MakeOutgoingFrame(pOutBuffer + FrameLen, &Tmp,
1, &ExtRateIe,
1, &pAd->CommonCfg.ExtRateLen,
pAd->CommonCfg.ExtRateLen,
pAd->CommonCfg.ExtRate,
END_OF_ARGS);
FrameLen += Tmp;
}
if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED) {
unsigned long Tmp;
u8 HtLen;
u8 BROADCOM[4] = { 0x0, 0x90, 0x4c, 0x33 };
if (pAd->bBroadComHT == TRUE) {
HtLen =
pAd->MlmeAux.HtCapabilityLen + 4;
MakeOutgoingFrame(pOutBuffer + FrameLen,
&Tmp, 1, &WpaIe, 1,
&HtLen, 4,
&BROADCOM[0],
pAd->MlmeAux.
HtCapabilityLen,
&pAd->MlmeAux.
HtCapability,
END_OF_ARGS);
} else {
HtLen = pAd->MlmeAux.HtCapabilityLen;
MakeOutgoingFrame(pOutBuffer + FrameLen,
&Tmp, 1, &HtCapIe, 1,
&HtLen, HtLen,
&pAd->CommonCfg.
HtCapability,
END_OF_ARGS);
}
FrameLen += Tmp;
}
MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
MlmeFreeMemory(pAd, pOutBuffer);
}
/* For SCAN_CISCO_PASSIVE, do nothing and silently wait for beacon or other probe reponse */
pAd->Mlme.SyncMachine.CurrState = SCAN_LISTEN;
}
}
