?? sync.c
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/*
***************************************************************************
* Ralink Tech Inc.
* 4F, No. 2 Technology 5th Rd.
* Science-based Industrial Park
* Hsin-chu, Taiwan, R.O.C.
*
* (c) Copyright 2002-2006, Ralink Technology, Inc.
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
************************************************************************
Module Name:
sync.c
Abstract:
Revision History:
Who When What
-------- ---------- ----------------------------------------------
John Chang 2004-09-01 modified for rt2561/2661
*/
#include "rt_config.h"
// 2.4 Ghz channel plan index in the TxPower arrays.
#define BG_BAND_REGION_0_START 0 // 1,2,3,4,5,6,7,8,9,10,11
#define BG_BAND_REGION_0_SIZE 11
#define BG_BAND_REGION_1_START 0 // 1,2,3,4,5,6,7,8,9,10,11,12,13
#define BG_BAND_REGION_1_SIZE 13
#define BG_BAND_REGION_2_START 9 // 10,11
#define BG_BAND_REGION_2_SIZE 2
#define BG_BAND_REGION_3_START 9 // 10,11,12,13
#define BG_BAND_REGION_3_SIZE 4
#define BG_BAND_REGION_4_START 13 // 14
#define BG_BAND_REGION_4_SIZE 1
#define BG_BAND_REGION_5_START 0 // 1,2,3,4,5,6,7,8,9,10,11,12,13,14
#define BG_BAND_REGION_5_SIZE 14
#define BG_BAND_REGION_6_START 2 // 3,4,5,6,7,8,9
#define BG_BAND_REGION_6_SIZE 7
#define BG_BAND_REGION_7_START 4 // 5,6,7,8,9,10,11,12,13
#define BG_BAND_REGION_7_SIZE 9
// 5 Ghz channel plan index in the TxPower arrays.
UCHAR A_BAND_REGION_0_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165};
UCHAR A_BAND_REGION_1_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
UCHAR A_BAND_REGION_2_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64};
UCHAR A_BAND_REGION_3_CHANNEL_LIST[]={52, 56, 60, 64, 149, 153, 157, 161};
UCHAR A_BAND_REGION_4_CHANNEL_LIST[]={149, 153, 157, 161, 165};
UCHAR A_BAND_REGION_5_CHANNEL_LIST[]={149, 153, 157, 161};
UCHAR A_BAND_REGION_6_CHANNEL_LIST[]={36, 40, 44, 48};
UCHAR A_BAND_REGION_7_CHANNEL_LIST[]={36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161, 165};
UCHAR A_BAND_REGION_8_CHANNEL_LIST[]={52, 56, 60, 64};
UCHAR A_BAND_REGION_9_CHANNEL_LIST[]={34, 38, 42, 46};
UCHAR A_BAND_REGION_10_CHANNEL_LIST[]={34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64};
/*
==========================================================================
Description:
The sync state machine,
Parameters:
Sm - pointer to the state machine
Note:
the state machine looks like the following
Column 1-2
SYNC_IDLE JOIN_WAIT_BEACON
MT2_MLME_SCAN_REQ mlme_scan_req_action invalid_state_when_scan
MT2_MLME_JOIN_REQ mlme_join_req_action invalid_state_when_join
MT2_MLME_START_REQ mlme_start_req_action invalid_state_when_start
MT2_PEER_BEACON peer_beacon peer_beacon_at_join_wait_beacon_action
MT2_PEER_PROBE_RSP peer_beacon drop
MT2_PEER_ATIM drop drop
MT2_SCAN_TIMEOUT Drop Drop
MT2_BEACON_TIMEOUT Drop beacon_timeout_at_join_wait_beacon_action
MT2_ATIM_TIMEOUT Drop Drop
MT2_PEER_PROBE_REQ ???? drop
column 3
SCAN_LISTEN
MT2_MLME_SCAN_REQ invalid_state_when_scan
MT2_MLME_JOIN_REQ invalid_state_when_join
MT2_MLME_START_REQ invalid_state_when_start
MT2_PEER_BEACON peer_beacon_at_scan_action
MT2_PEER_PROBE_RSP peer_probe_rsp_at_scan_action
MT2_PEER_ATIM drop
MT2_SCAN_TIMEOUT scan_timeout_action
MT2_BEACON_TIMEOUT Drop
MT2_ATIM_TIMEOUT Drop
MT2_PEER_PROBE_REQ drop
==========================================================================
*/
VOID SyncStateMachineInit(
IN PRTMP_ADAPTER pAd,
IN STATE_MACHINE *Sm,
OUT STATE_MACHINE_FUNC Trans[])
{
StateMachineInit(Sm, (STATE_MACHINE_FUNC*)Trans, MAX_SYNC_STATE, MAX_SYNC_MSG, (STATE_MACHINE_FUNC)Drop, SYNC_IDLE, SYNC_MACHINE_BASE);
// column 1
StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)MlmeScanReqAction);
StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)MlmeJoinReqAction);
StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)MlmeStartReqAction);
StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeacon);
StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_PROBE_REQ, (STATE_MACHINE_FUNC)PeerProbeReqAction);
//column 2
StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenScan);
StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenJoin);
StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenStart);
StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeaconAtJoinAction);
StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_BEACON_TIMEOUT, (STATE_MACHINE_FUNC)BeaconTimeoutAtJoinAction);
// column 3
StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenScan);
StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenJoin);
StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenStart);
StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeaconAtScanAction);
StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_PROBE_RSP, (STATE_MACHINE_FUNC)PeerBeaconAtScanAction);
StateMachineSetAction(Sm, SCAN_LISTEN, MT2_SCAN_TIMEOUT, (STATE_MACHINE_FUNC)ScanTimeoutAction);
// timer init
RTMPInitTimer(pAd, &pAd->MlmeAux.BeaconTimer, &BeaconTimeout);
RTMPInitTimer(pAd, &pAd->MlmeAux.ScanTimer, &ScanTimeout);
}
/*
==========================================================================
Description:
Becaon timeout handler, executed in timer thread
==========================================================================
*/
VOID BeaconTimeout(
IN unsigned long data)
{
RTMP_ADAPTER *pAd = (RTMP_ADAPTER *)data;
DBGPRINT(RT_DEBUG_TRACE,"SYNC - BeaconTimeout\n");
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_BEACON_TIMEOUT, 0, NULL);
RTUSBMlmeUp(pAd);
}
/*
==========================================================================
Description:
Scan timeout handler, executed in timer thread
==========================================================================
*/
VOID ScanTimeout(
IN unsigned long data)
{
RTMP_ADAPTER *pAd = (RTMP_ADAPTER *)data;
DBGPRINT(RT_DEBUG_INFO,"SYNC - Scan Timeout \n");
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_SCAN_TIMEOUT, 0, NULL);
RTUSBMlmeUp(pAd);
}
/*
==========================================================================
Description:
MLME SCAN req state machine procedure
==========================================================================
*/
VOID MlmeScanReqAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen, ScanType, BssType;
ULONG Now;
USHORT Status;
PHEADER_802_11 pHdr80211;
PUCHAR pOutBuffer = NULL;
USHORT NStatus;
// Increase the scan retry counters.
pAd->PortCfg.ScanCnt++;
// Suspend MSDU transmission here
RTUSBSuspendMsduTransmission(pAd);
// first check the parameter sanity
if (MlmeScanReqSanity(pAd,
Elem->Msg,
Elem->MsgLen,
&BssType,
Ssid,
&SsidLen,
&ScanType))
{
DBGPRINT(RT_DEBUG_TRACE, "SYNC - MlmeScanReqAction\n");
//
// To prevent data lost.
// Send an NULL data with turned PSM bit on to current associated AP before SCAN progress.
// And should 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, (PVOID)&pOutBuffer); //Get an unused nonpaged memory
if (NStatus == NDIS_STATUS_SUCCESS)
{
pHdr80211 = (PHEADER_802_11) pOutBuffer;
MgtMacHeaderInit(pAd, pHdr80211, SUBTYPE_NULL_FUNC, 1, pAd->PortCfg.Bssid, pAd->PortCfg.Bssid);
pHdr80211->Duration = 0;
pHdr80211->FC.Type = BTYPE_DATA;
pHdr80211->FC.PwrMgmt = PWR_SAVE;
// Send using priority queue
MiniportMMRequest(pAd, pOutBuffer, sizeof(HEADER_802_11));
DBGPRINT(RT_DEBUG_TRACE, "MlmeScanReqAction -- Send PSM Data frame for off channel RM\n");
RTMPusecDelay(5000);
}
}
Now = jiffies;
pAd->PortCfg.LastScanTime = Now;
RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer);
RTMPCancelTimer(&pAd->MlmeAux.ScanTimer);
// record desired BSS parameters
pAd->MlmeAux.BssType = BssType;
pAd->MlmeAux.ScanType = ScanType;
pAd->MlmeAux.SsidLen = SsidLen;
NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
// start from the first channel
pAd->MlmeAux.Channel = FirstChannel(pAd);
ScanNextChannel(pAd);
}
else
{
DBGPRINT(RT_DEBUG_ERROR, "SYNC - MlmeScanReqAction() sanity check fail. BUG!!!\n");
pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
Status = MLME_INVALID_FORMAT;
MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
}
}
/*
==========================================================================
Description:
MLME JOIN req state machine procedure
==========================================================================
*/
VOID MlmeJoinReqAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
BSS_ENTRY *pBss;
MLME_JOIN_REQ_STRUCT *Info = (MLME_JOIN_REQ_STRUCT *)(Elem->Msg);
DBGPRINT(RT_DEBUG_TRACE, "SYNC - MlmeJoinReqAction(BSS #%d)\n", Info->BssIdx);
// reset all the timers
RTMPCancelTimer(&pAd->MlmeAux.ScanTimer);
RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer);
pBss = &pAd->MlmeAux.SsidBssTab.BssEntry[Info->BssIdx];
// record the desired SSID & BSSID we're waiting for
COPY_MAC_ADDR(pAd->MlmeAux.Bssid, pBss->Bssid);
NdisMoveMemory(pAd->MlmeAux.Ssid, pBss->Ssid, pBss->SsidLen);
pAd->MlmeAux.SsidLen = pBss->SsidLen;
pAd->MlmeAux.BssType = pBss->BssType;
pAd->MlmeAux.Channel = pBss->Channel;
// switch channel and waiting for beacon timer
AsicSwitchChannel(pAd, pAd->MlmeAux.Channel);
AsicLockChannel(pAd, pAd->MlmeAux.Channel);
RTMPSetTimer(pAd, &pAd->MlmeAux.BeaconTimer, JOIN_TIMEOUT);
DBGPRINT(RT_DEBUG_TRACE, "SYNC - Switch to channel %d, SSID %s \n", pAd->MlmeAux.Channel, pAd->MlmeAux.Ssid);
DBGPRINT(RT_DEBUG_TRACE, "SYNC - Wait BEACON from %02x:%02x:%02x:%02x:%02x:%02x ...\n",
pAd->MlmeAux.Bssid[0], pAd->MlmeAux.Bssid[1],
pAd->MlmeAux.Bssid[2], pAd->MlmeAux.Bssid[3],
pAd->MlmeAux.Bssid[4], pAd->MlmeAux.Bssid[5]);
pAd->Mlme.SyncMachine.CurrState = JOIN_WAIT_BEACON;
}
/*
==========================================================================
Description:
MLME START Request state machine procedure, starting an IBSS
==========================================================================
*/
VOID MlmeStartReqAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen;
USHORT Status;
// New for WPA security suites
UCHAR VarIE[MAX_VIE_LEN]; // Total VIE length = MAX_VIE_LEN - -5
NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
LARGE_INTEGER TimeStamp;
BOOLEAN Privacy;
#ifdef SINGLE_ADHOC_LINKUP
ULONG Bssidx;
CF_PARM CfParm;
CfParm.bValid = FALSE;
#endif
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