action.c

Linux下的RT系列无线网卡驱动,可以直接在x86平台上编译

/*
 *************************************************************************
 * Ralink Tech Inc.
 * 4F, No. 2 Technology 5th Rd.
 * Science-based Industrial Park
 * Hsin-chu, Taiwan, R.O.C.
 *
 * (c) Copyright 2002-2007, 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:
    assoc.c
 
    Abstract:
    Handle association related requests either from WSTA or from local MLME
 
    Revision History:
    Who         When          What
    --------    ----------    ----------------------------------------------
	Jan Lee		2006	  	created for rt2860
*/

#include "rt_config.h"
#include "action.h"


static VOID ReservedAction(
	IN PRTMP_ADAPTER pAd, 
	IN MLME_QUEUE_ELEM *Elem);

/*  
    ==========================================================================
    Description: 
        association state machine init, including state transition and timer init
    Parameters: 
        S - pointer to the association state machine
    Note:
        The state machine looks like the following 
        
                                    ASSOC_IDLE             
        MT2_MLME_DISASSOC_REQ    mlme_disassoc_req_action 
        MT2_PEER_DISASSOC_REQ    peer_disassoc_action     
        MT2_PEER_ASSOC_REQ       drop                     
        MT2_PEER_REASSOC_REQ     drop                     
        MT2_CLS3ERR              cls3err_action           
    ==========================================================================
 */
VOID ActionStateMachineInit(
    IN	PRTMP_ADAPTER	pAd, 
    IN  STATE_MACHINE *S, 
    OUT STATE_MACHINE_FUNC Trans[]) 
{
	StateMachineInit(S, (STATE_MACHINE_FUNC *)Trans, MAX_ACT_STATE, MAX_ACT_MSG, (STATE_MACHINE_FUNC)Drop, ACT_IDLE, ACT_MACHINE_BASE);

	StateMachineSetAction(S, ACT_IDLE, MT2_PEER_SPECTRUM_CATE, (STATE_MACHINE_FUNC)PeerSpectrumAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_PEER_QOS_CATE, (STATE_MACHINE_FUNC)PeerQOSAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_PEER_DLS_CATE, (STATE_MACHINE_FUNC)PeerDLSAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_PEER_BA_CATE, (STATE_MACHINE_FUNC)PeerBAAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_PEER_RM_CATE, (STATE_MACHINE_FUNC)ReservedAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_PEER_BSSTRANS_CATE, (STATE_MACHINE_FUNC)ReservedAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_PEER_HT_CATE, (STATE_MACHINE_FUNC)PeerHTAction);
	
	StateMachineSetAction(S, ACT_IDLE, MT2_MLME_ADD_BA_CATE, (STATE_MACHINE_FUNC)MlmeADDBAAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_MLME_ORI_DELBA_CATE, (STATE_MACHINE_FUNC)MlmeDELBAAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_MLME_REC_DELBA_CATE, (STATE_MACHINE_FUNC)MlmeDELBAAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_MLME_QOS_CATE, (STATE_MACHINE_FUNC)MlmeQOSAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_MLME_DLS_CATE, (STATE_MACHINE_FUNC)MlmeDLSAction);
	StateMachineSetAction(S, ACT_IDLE, MT2_ACT_INVALID, (STATE_MACHINE_FUNC)MlmeInvalidAction);
}

VOID MlmeADDBAAction(
    IN PRTMP_ADAPTER pAd, 
    IN MLME_QUEUE_ELEM *Elem) 

{
	MLME_ADDBA_REQ_STRUCT *pInfo;
	UCHAR           Addr[6];
	PUCHAR         pOutBuffer = NULL;
	NDIS_STATUS     NStatus;
	ULONG		Idx;
	FRAME_ADDBA_REQ  Frame;
	ULONG		FrameLen;
	BA_ORI_ENTRY			*pBAEntry = NULL;

	pInfo = (MLME_ADDBA_REQ_STRUCT *)Elem->Msg;
	NdisZeroMemory(&Frame, sizeof(FRAME_ADDBA_REQ));
	
	if(MlmeAddBAReqSanity(pAd, Elem->Msg, Elem->MsgLen, Addr)) 
	{
		NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);  //Get an unused nonpaged memory
		if(NStatus != NDIS_STATUS_SUCCESS) 
		{
			DBGPRINT(RT_DEBUG_TRACE,("BA - MlmeADDBAAction() allocate memory failed \n"));
			return;
		}
		// 1. find entry
		Idx = pAd->MacTab.Content[pInfo->Wcid].BAOriWcidArray[pInfo->TID];
		if (Idx == 0)
		{
			MlmeFreeMemory(pAd, pOutBuffer);
			DBGPRINT(RT_DEBUG_ERROR,("BA - MlmeADDBAAction() can't find BAOriEntry \n"));
			return;
		} 
		else
		{
			pBAEntry =&pAd->BATable.BAOriEntry[Idx];
		}
		
#ifdef CONFIG_STA_SUPPORT
		ActHeaderInit(pAd, &Frame.Hdr, pAd->CommonCfg.Bssid, pAd->CurrentAddress, pInfo->pAddr);
#endif // CONFIG_STA_SUPPORT // 

		Frame.Category = CATEGORY_BA;
		Frame.Action = ADDBA_REQ;
		Frame.BaParm.AMSDUSupported = 0;
		Frame.BaParm.BAPolicy = IMMED_BA;
		Frame.BaParm.TID = pInfo->TID;
		Frame.BaParm.BufSize = pInfo->BaBufSize;
		Frame.Token = pInfo->Token;
		Frame.TimeOutValue = pInfo->TimeOutValue;
		Frame.BaStartSeq.field.FragNum = 0;
		Frame.BaStartSeq.field.StartSeq = pAd->MacTab.Content[pInfo->Wcid].TxSeq[pInfo->TID];
#ifdef BIG_ENDIAN
		*(USHORT *)(&Frame.BaParm) = SWAP16(*(USHORT *)(&Frame.BaParm));
		Frame.TimeOutValue = SWAP16(Frame.TimeOutValue);
		Frame.BaStartSeq.word = SWAP16(Frame.BaStartSeq.word);
#endif
		MakeOutgoingFrame(pOutBuffer,		   &FrameLen,
		              sizeof(FRAME_ADDBA_REQ), &Frame,
		              END_OF_ARGS);
		MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer, FrameLen);
		MlmeFreeMemory(pAd, pOutBuffer);
		
		DBGPRINT(RT_DEBUG_TRACE, ("BA - Send ADDBA request. StartSeq = %x,  FrameLen = %ld. BufSize = %d\n", Frame.BaStartSeq.field.StartSeq, FrameLen, Frame.BaParm.BufSize));
    }
}

/*
    ==========================================================================
    Description:
        send DELBA and delete BaEntry if any
    Parametrs:
        Elem - MLME message MLME_DELBA_REQ_STRUCT
        
	IRQL = DISPATCH_LEVEL

    ==========================================================================
 */
VOID MlmeDELBAAction(
    IN PRTMP_ADAPTER pAd, 
    IN MLME_QUEUE_ELEM *Elem) 
{
	MLME_DELBA_REQ_STRUCT *pInfo;
	PUCHAR         pOutBuffer = NULL;
	PUCHAR		   pOutBuffer2 = NULL;
	NDIS_STATUS     NStatus;
	ULONG		Idx;
	FRAME_DELBA_REQ  Frame;
	ULONG		FrameLen;
	FRAME_BAR	FrameBar;
	
	pInfo = (MLME_DELBA_REQ_STRUCT *)Elem->Msg;	
	// must send back DELBA 
	NdisZeroMemory(&Frame, sizeof(FRAME_DELBA_REQ));
	
	if(MlmeDelBAReqSanity(pAd, Elem->Msg, Elem->MsgLen)) 
	{
		NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);  //Get an unused nonpaged memory
		if(NStatus != NDIS_STATUS_SUCCESS) 
		{
			DBGPRINT(RT_DEBUG_TRACE,("BA - MlmeDELBAAction() allocate memory failed 1. \n"));
			return;
		}

		NStatus = MlmeAllocateMemory(pAd, &pOutBuffer2);  //Get an unused nonpaged memory
		if(NStatus != NDIS_STATUS_SUCCESS) 
		{
			MlmeFreeMemory(pAd, pOutBuffer);
			DBGPRINT(RT_DEBUG_TRACE,("BA - MlmeDELBAAction() allocate memory failed 2. \n"));
			return;
		}

		// SEND BAR (Send BAR to refresh peer reordering buffer.)
		Idx = pAd->MacTab.Content[pInfo->Wcid].BAOriWcidArray[pInfo->TID];

#ifdef CONFIG_STA_SUPPORT
		BarHeaderInit(pAd, &FrameBar, pAd->MacTab.Content[pInfo->Wcid].Addr, pAd->CurrentAddress);
#endif // CONFIG_STA_SUPPORT //

		FrameBar.StartingSeq.field.FragNum = 0; // make sure sequence not clear in DEL funciton.
		FrameBar.StartingSeq.field.StartSeq = pAd->MacTab.Content[pInfo->Wcid].TxSeq[pInfo->TID]; // make sure sequence not clear in DEL funciton.
		FrameBar.BarControl.TID = pInfo->TID; // make sure sequence not clear in DEL funciton.
		FrameBar.BarControl.ACKPolicy = IMMED_BA; // make sure sequence not clear in DEL funciton.
		FrameBar.BarControl.Compressed = 1; // make sure sequence not clear in DEL funciton.
		FrameBar.BarControl.MTID = 0; // make sure sequence not clear in DEL funciton.
		MakeOutgoingFrame(pOutBuffer2,				&FrameLen,
					  sizeof(FRAME_BAR),	  &FrameBar,
					  END_OF_ARGS);
		MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer2, FrameLen);
		MlmeFreeMemory(pAd, pOutBuffer2);
		DBGPRINT(RT_DEBUG_TRACE,("BA - MlmeDELBAAction() . Send BAR to refresh peer reordering buffer \n"));

		// SEND DELBA FRAME
		FrameLen = 0;
#ifdef CONFIG_STA_SUPPORT
		ActHeaderInit(pAd, &Frame.Hdr,  pAd->CommonCfg.Bssid, pAd->CurrentAddress, pAd->MacTab.Content[pInfo->Wcid].Addr);
#endif // CONFIG_STA_SUPPORT //
		Frame.Category = CATEGORY_BA;
		Frame.Action = DELBA;
		Frame.DelbaParm.Initiator = pInfo->Initiator;
		Frame.DelbaParm.TID = pInfo->TID;
		Frame.ReasonCode = 39; // Time Out
#ifdef BIG_ENDIAN
		*(USHORT *)(&Frame.DelbaParm) = SWAP16(*(USHORT *)(&Frame.DelbaParm));
		Frame.ReasonCode = SWAP16(Frame.ReasonCode);
#endif
		MakeOutgoingFrame(pOutBuffer,               &FrameLen,
		              sizeof(FRAME_DELBA_REQ),    &Frame,
		              END_OF_ARGS);
		MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer, FrameLen);
		MlmeFreeMemory(pAd, pOutBuffer);
		DBGPRINT(RT_DEBUG_TRACE,("BA - MlmeDELBAAction() . 3 DELBA sent. \n"));
    	}
}

VOID MlmeQOSAction(
    IN PRTMP_ADAPTER pAd, 
    IN MLME_QUEUE_ELEM *Elem) 
{
}

VOID MlmeDLSAction(
    IN PRTMP_ADAPTER pAd, 
    IN MLME_QUEUE_ELEM *Elem) 
{
}

VOID MlmeInvalidAction(
    IN PRTMP_ADAPTER pAd, 
    IN MLME_QUEUE_ELEM *Elem) 
{
	//PUCHAR		   pOutBuffer = NULL;
	//Return the receiving frame except the MSB of category filed set to 1.  7.3.1.11
}

VOID PeerSpectrumAction(
	IN PRTMP_ADAPTER pAd, 
	IN MLME_QUEUE_ELEM *Elem) 
{

	UCHAR	Action = Elem->Msg[LENGTH_802_11+1];
	
	switch(Action)
	{
		case SPEC_CHANNEL_SWITCH:
		{
//			FRAME_SPETRUM_CS	FrameCS;
			break;
		}
	}
// unknown category field value received.
// return to source with most significant bit set to 1 if received packet's MSB = 0
}

VOID PeerQOSAction(
	IN PRTMP_ADAPTER pAd, 
	IN MLME_QUEUE_ELEM *Elem) 
{
}

VOID PeerDLSAction(
	IN PRTMP_ADAPTER pAd, 
	IN MLME_QUEUE_ELEM *Elem) 
{
}

VOID PeerBAAction(