Staging: rt28x0: updates from vendor's V2.1.0.0 drivers

Port changes from:

* 2009_0420_RT2860_Linux_STA_V2.1.0.0
* 2009_0302_RT2870_Linux_STA_v2.1.0.0
* 2009_0525_RT3070_Linux_STA_v2.1.1.0

to in-kernel drivers.


From the RT2860 driver release note:

[2.1.0.0]
1. New generation schema for multiple OS porting
2. Fixed Ad-hoc ping failed in noisy environment. (Probe Response has too
    many retry packet then cause "not enough space in MgmtRing")
3. Fixed WPA(2)PSK issue when group cipher of AP is WEP40 or WEP104.
4. Modified iwpriv ra0 get_site_survey:
	In scan list result: Security shows "NONE" when AP is OPEN/NONE,
	shows "WEP" when AP is OPEN/WEP or SHARED/WEP, shows
	"WPAPSK(WPA2PSK)/TKIP(AES)" when AP is WPAPSK(WPA2PSK)/TKIP(AES)
	shows "WPA(WPA2)/TKIP(AES)" when AP is WPA(WPA2)/TKIP(AES)
5. Support kthread.
6. Add New A band channel list region 15 contains the whole channels in
   the A band region 4 and the new CE channel 167,169,171,173
7. Add New IEEE802.11r functionality.
8. Fixed WPA2-Enterprise failed when AP reboot or turn off then turn on.
9. Fixed STA cannot connect to 11B only AP when the setting of is PHY_11GN.


From the RT2870 driver release note:

[V2.1.0.0]
1. New generation schema for multiple OS porting.
2. Fixed Ad-hoc ping failed in noisy environment. (Probe Response has too
   many retry packet then cause "not enough space in MgmtRing").
3. Fixed WPS failed with D-Link DIR-628 in 5GHz.
4. Change FastRoaming in DAT file to AutoRoaming.
5. Support kthread.
6. Add New A band channel list region 15 contains the whole channels in
   the A band region and the new CE channel 167,169,171,173.
7. New IEEE802.11r functionality.


From the RT3070 driver release note:

Version V2.1.1.0
       1. Linux kernel 2.6.29 support.
       2. Fix eFuse write from BIN file bug.

Version 2.1.0.0
       1. New generation schema for multiple OS porting
       2. Fixed Ad-hoc ping failed in noisy environment.
       3. Modified iwpriv ra0 get_site_survey:
       4. Change FastRoaming in DAT file to AutoRoaming.
       5. Support kthread.
       6. New IEEE802.11r functionality.


Tested with RT2860 and RT3070 chipsets.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1216 insertions, 0 deletions

diff --git a/drivers/staging/rt2860/common/cmm_mac_usb.c b/drivers/staging/rt2860/common/cmm_mac_usb.c
new file mode 100644
index 0000000..ad8c601
--- /dev/null
+++ b/drivers/staging/rt2860/common/cmm_mac_usb.c
@@ -0,0 +1,1216 @@
+/*
+ *************************************************************************
+ * Ralink Tech Inc.
+ * 5F., No.36, Taiyuan St., Jhubei City,
+ * Hsinchu County 302,
+ * 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.             *
+ *                                                                       *
+ *************************************************************************
+*/
+
+#ifdef RTMP_MAC_USB
+
+
+#include	"../rt_config.h"
+
+
+/*
+========================================================================
+Routine Description:
+    Initialize receive data structures.
+
+Arguments:
+    pAd					Pointer to our adapter
+
+Return Value:
+	NDIS_STATUS_SUCCESS
+	NDIS_STATUS_RESOURCES
+
+Note:
+	Initialize all receive releated private buffer, include those define
+	in RTMP_ADAPTER structure and all private data structures. The mahor
+	work is to allocate buffer for each packet and chain buffer to
+	NDIS packet descriptor.
+========================================================================
+*/
+NDIS_STATUS	NICInitRecv(
+	IN	PRTMP_ADAPTER	pAd)
+{
+	UCHAR				i;
+	NDIS_STATUS			Status = NDIS_STATUS_SUCCESS;
+	POS_COOKIE			pObj = (POS_COOKIE) pAd->OS_Cookie;
+
+
+	DBGPRINT(RT_DEBUG_TRACE, ("--> NICInitRecv\n"));
+	pObj = pObj;
+
+	//InterlockedExchange(&pAd->PendingRx, 0);
+	pAd->PendingRx = 0;
+	pAd->NextRxBulkInReadIndex	= 0;	// Next Rx Read index
+	pAd->NextRxBulkInIndex		= 0 ; //RX_RING_SIZE -1; // Rx Bulk pointer
+	pAd->NextRxBulkInPosition	= 0;
+
+	for (i = 0; i < (RX_RING_SIZE); i++)
+	{
+		PRX_CONTEXT  pRxContext = &(pAd->RxContext[i]);
+
+		//Allocate URB
+		pRxContext->pUrb = RTUSB_ALLOC_URB(0);
+		if (pRxContext->pUrb == NULL)
+		{
+			Status = NDIS_STATUS_RESOURCES;
+			goto out1;
+		}
+
+		// Allocate transfer buffer
+		pRxContext->TransferBuffer = RTUSB_URB_ALLOC_BUFFER(pObj->pUsb_Dev, MAX_RXBULK_SIZE, &pRxContext->data_dma);
+		if (pRxContext->TransferBuffer == NULL)
+		{
+			Status = NDIS_STATUS_RESOURCES;
+			goto out1;
+		}
+
+		NdisZeroMemory(pRxContext->TransferBuffer, MAX_RXBULK_SIZE);
+
+		pRxContext->pAd	= pAd;
+		pRxContext->pIrp = NULL;
+		pRxContext->InUse		= FALSE;
+		pRxContext->IRPPending	= FALSE;
+		pRxContext->Readable	= FALSE;
+		//pRxContext->ReorderInUse = FALSE;
+		pRxContext->bRxHandling = FALSE;
+		pRxContext->BulkInOffset = 0;
+	}
+
+	DBGPRINT(RT_DEBUG_TRACE, ("<-- NICInitRecv(Status=%d)\n", Status));
+	return Status;
+
+out1:
+	for (i = 0; i < (RX_RING_SIZE); i++)
+	{
+		PRX_CONTEXT  pRxContext = &(pAd->RxContext[i]);
+
+		if (NULL != pRxContext->TransferBuffer)
+		{
+			RTUSB_URB_FREE_BUFFER(pObj->pUsb_Dev, MAX_RXBULK_SIZE,
+								pRxContext->TransferBuffer, pRxContext->data_dma);
+			pRxContext->TransferBuffer = NULL;
+		}
+
+		if (NULL != pRxContext->pUrb)
+		{
+			RTUSB_UNLINK_URB(pRxContext->pUrb);
+			RTUSB_FREE_URB(pRxContext->pUrb);
+			pRxContext->pUrb = NULL;
+		}
+	}
+
+	return Status;
+}
+
+
+/*
+========================================================================
+Routine Description:
+    Initialize transmit data structures.
+
+Arguments:
+    pAd					Pointer to our adapter
+
+Return Value:
+	NDIS_STATUS_SUCCESS
+	NDIS_STATUS_RESOURCES
+
+Note:
+========================================================================
+*/
+NDIS_STATUS	NICInitTransmit(
+	IN	PRTMP_ADAPTER	pAd)
+{
+#define LM_USB_ALLOC(pObj, Context, TB_Type, BufferSize, Status, msg1, err1, msg2, err2)	\
+	Context->pUrb = RTUSB_ALLOC_URB(0);		\
+	if (Context->pUrb == NULL) {			\
+		DBGPRINT(RT_DEBUG_ERROR, msg1);		\
+		Status = NDIS_STATUS_RESOURCES;		\
+		goto err1; }						\
+											\
+	Context->TransferBuffer =				\
+		(TB_Type)RTUSB_URB_ALLOC_BUFFER(pObj->pUsb_Dev, BufferSize, &Context->data_dma);	\
+	if (Context->TransferBuffer == NULL) {	\
+		DBGPRINT(RT_DEBUG_ERROR, msg2);		\
+		Status = NDIS_STATUS_RESOURCES;		\
+		goto err2; }
+
+#define LM_URB_FREE(pObj, Context, BufferSize)				\
+	if (NULL != Context->pUrb) {							\
+		RTUSB_UNLINK_URB(Context->pUrb);					\
+		RTUSB_FREE_URB(Context->pUrb);						\
+		Context->pUrb = NULL; }								\
+	if (NULL != Context->TransferBuffer) {				\
+		RTUSB_URB_FREE_BUFFER(pObj->pUsb_Dev, BufferSize,	\
+								Context->TransferBuffer,	\
+								Context->data_dma);			\
+		Context->TransferBuffer = NULL; }
+
+	UCHAR			i, acidx;
+	NDIS_STATUS     Status = NDIS_STATUS_SUCCESS;
+	PTX_CONTEXT		pNullContext   = &(pAd->NullContext);
+	PTX_CONTEXT		pPsPollContext = &(pAd->PsPollContext);
+	PTX_CONTEXT		pRTSContext    = &(pAd->RTSContext);
+	PTX_CONTEXT		pMLMEContext = NULL;
+//	PHT_TX_CONTEXT	pHTTXContext = NULL;
+	POS_COOKIE		pObj = (POS_COOKIE) pAd->OS_Cookie;
+	PVOID			RingBaseVa;
+//	RTMP_TX_RING	*pTxRing;
+	RTMP_MGMT_RING  *pMgmtRing;
+
+	DBGPRINT(RT_DEBUG_TRACE, ("--> NICInitTransmit\n"));
+	pObj = pObj;
+
+	// Init 4 set of Tx parameters
+	for(acidx = 0; acidx < NUM_OF_TX_RING; acidx++)
+	{
+		// Initialize all Transmit releated queues
+		InitializeQueueHeader(&pAd->TxSwQueue[acidx]);
+
+		// Next Local tx ring pointer waiting for buck out
+		pAd->NextBulkOutIndex[acidx] = acidx;
+		pAd->BulkOutPending[acidx] = FALSE; // Buck Out control flag
+		//pAd->DataBulkDoneIdx[acidx] = 0;
+	}
+
+	//pAd->NextMLMEIndex	= 0;
+	//pAd->PushMgmtIndex	= 0;
+	//pAd->PopMgmtIndex	= 0;
+	//InterlockedExchange(&pAd->MgmtQueueSize, 0);
+	//InterlockedExchange(&pAd->TxCount, 0);
+
+	//pAd->PrioRingFirstIndex	= 0;
+	//pAd->PrioRingTxCnt		= 0;
+
+	do
+	{
+		//
+		// TX_RING_SIZE, 4 ACs
+		//
+		for(acidx=0; acidx<4; acidx++)
+		{
+			PHT_TX_CONTEXT	pHTTXContext = &(pAd->TxContext[acidx]);
+
+			NdisZeroMemory(pHTTXContext, sizeof(HT_TX_CONTEXT));
+			//Allocate URB
+			LM_USB_ALLOC(pObj, pHTTXContext, PHTTX_BUFFER, sizeof(HTTX_BUFFER), Status,
+							("<-- ERROR in Alloc TX TxContext[%d] urb!! \n", acidx),
+							done,
+							("<-- ERROR in Alloc TX TxContext[%d] HTTX_BUFFER !! \n", acidx),
+							out1);
+
+			NdisZeroMemory(pHTTXContext->TransferBuffer->Aggregation, 4);
+			pHTTXContext->pAd = pAd;
+			pHTTXContext->pIrp = NULL;
+			pHTTXContext->IRPPending = FALSE;
+			pHTTXContext->NextBulkOutPosition = 0;
+			pHTTXContext->ENextBulkOutPosition = 0;
+			pHTTXContext->CurWritePosition = 0;
+			pHTTXContext->CurWriteRealPos = 0;
+			pHTTXContext->BulkOutSize = 0;
+			pHTTXContext->BulkOutPipeId = acidx;
+			pHTTXContext->bRingEmpty = TRUE;
+			pHTTXContext->bCopySavePad = FALSE;
+			pAd->BulkOutPending[acidx] = FALSE;
+		}
+
+
+		//
+		// MGMT_RING_SIZE
+		//
+
+		// Allocate MGMT ring descriptor's memory
+		pAd->MgmtDescRing.AllocSize = MGMT_RING_SIZE * sizeof(TX_CONTEXT);
+		os_alloc_mem(pAd, (PUCHAR *)(&pAd->MgmtDescRing.AllocVa), pAd->MgmtDescRing.AllocSize);
+		if (pAd->MgmtDescRing.AllocVa == NULL)
+		{
+			DBGPRINT_ERR(("Failed to allocate a big buffer for MgmtDescRing!\n"));
+			Status = NDIS_STATUS_RESOURCES;
+			goto out1;
+		}
+		NdisZeroMemory(pAd->MgmtDescRing.AllocVa, pAd->MgmtDescRing.AllocSize);
+		RingBaseVa     = pAd->MgmtDescRing.AllocVa;
+
+		// Initialize MGMT Ring and associated buffer memory
+		pMgmtRing = &pAd->MgmtRing;
+		for (i = 0; i < MGMT_RING_SIZE; i++)
+		{
+			// link the pre-allocated Mgmt buffer to MgmtRing.Cell
+			pMgmtRing->Cell[i].AllocSize = sizeof(TX_CONTEXT);
+			pMgmtRing->Cell[i].AllocVa = RingBaseVa;
+			pMgmtRing->Cell[i].pNdisPacket = NULL;
+			pMgmtRing->Cell[i].pNextNdisPacket = NULL;
+
+			//Allocate URB for MLMEContext
+			pMLMEContext = (PTX_CONTEXT) pAd->MgmtRing.Cell[i].AllocVa;
+			pMLMEContext->pUrb = RTUSB_ALLOC_URB(0);
+			if (pMLMEContext->pUrb == NULL)
+			{
+				DBGPRINT(RT_DEBUG_ERROR, ("<-- ERROR in Alloc TX MLMEContext[%d] urb!! \n", i));
+				Status = NDIS_STATUS_RESOURCES;
+				goto out2;
+			}
+			pMLMEContext->pAd = pAd;
+			pMLMEContext->pIrp = NULL;
+			pMLMEContext->TransferBuffer = NULL;
+			pMLMEContext->InUse = FALSE;
+			pMLMEContext->IRPPending = FALSE;
+			pMLMEContext->bWaitingBulkOut = FALSE;
+			pMLMEContext->BulkOutSize = 0;
+			pMLMEContext->SelfIdx = i;
+
+			// Offset to next ring descriptor address
+			RingBaseVa = (PUCHAR) RingBaseVa + sizeof(TX_CONTEXT);
+		}
+		DBGPRINT(RT_DEBUG_TRACE, ("MGMT Ring: total %d entry allocated\n", i));
+
+		//pAd->MgmtRing.TxSwFreeIdx = (MGMT_RING_SIZE - 1);
+		pAd->MgmtRing.TxSwFreeIdx = MGMT_RING_SIZE;
+		pAd->MgmtRing.TxCpuIdx = 0;
+		pAd->MgmtRing.TxDmaIdx = 0;
+
+		//
+		// BEACON_RING_SIZE
+		//
+		for(i=0; i<BEACON_RING_SIZE; i++) // 2
+		{
+			PTX_CONTEXT	pBeaconContext = &(pAd->BeaconContext[i]);
+
+
+			NdisZeroMemory(pBeaconContext, sizeof(TX_CONTEXT));
+
+			//Allocate URB
+			LM_USB_ALLOC(pObj, pBeaconContext, PTX_BUFFER, sizeof(TX_BUFFER), Status,
+							("<-- ERROR in Alloc TX BeaconContext[%d] urb!! \n", i),
+							out2,
+							("<-- ERROR in Alloc TX BeaconContext[%d] TX_BUFFER !! \n", i),
+							out3);
+
+			pBeaconContext->pAd = pAd;
+			pBeaconContext->pIrp = NULL;
+			pBeaconContext->InUse = FALSE;
+			pBeaconContext->IRPPending = FALSE;
+		}
+
+		//
+		// NullContext
+		//
+		NdisZeroMemory(pNullContext, sizeof(TX_CONTEXT));
+
+		//Allocate URB
+		LM_USB_ALLOC(pObj, pNullContext, PTX_BUFFER, sizeof(TX_BUFFER), Status,
+						("<-- ERROR in Alloc TX NullContext urb!! \n"),
+						out3,
+						("<-- ERROR in Alloc TX NullContext TX_BUFFER !! \n"),
+						out4);
+
+		pNullContext->pAd = pAd;
+		pNullContext->pIrp = NULL;
+		pNullContext->InUse = FALSE;
+		pNullContext->IRPPending = FALSE;
+
+		//
+		// RTSContext
+		//
+		NdisZeroMemory(pRTSContext, sizeof(TX_CONTEXT));
+
+		//Allocate URB
+		LM_USB_ALLOC(pObj, pRTSContext, PTX_BUFFER, sizeof(TX_BUFFER), Status,
+						("<-- ERROR in Alloc TX RTSContext urb!! \n"),
+						out4,
+						("<-- ERROR in Alloc TX RTSContext TX_BUFFER !! \n"),
+						out5);
+
+		pRTSContext->pAd = pAd;
+		pRTSContext->pIrp = NULL;
+		pRTSContext->InUse = FALSE;
+		pRTSContext->IRPPending = FALSE;
+
+		//
+		// PsPollContext
+		//
+		//NdisZeroMemory(pPsPollContext, sizeof(TX_CONTEXT));
+		//Allocate URB
+		LM_USB_ALLOC(pObj, pPsPollContext, PTX_BUFFER, sizeof(TX_BUFFER), Status,
+						("<-- ERROR in Alloc TX PsPollContext urb!! \n"),
+						out5,
+						("<-- ERROR in Alloc TX PsPollContext TX_BUFFER !! \n"),
+						out6);
+
+		pPsPollContext->pAd = pAd;
+		pPsPollContext->pIrp = NULL;
+		pPsPollContext->InUse = FALSE;
+		pPsPollContext->IRPPending = FALSE;
+		pPsPollContext->bAggregatible = FALSE;
+		pPsPollContext->LastOne = TRUE;
+
+	}   while (FALSE);
+
+
+done:
+	DBGPRINT(RT_DEBUG_TRACE, ("<-- NICInitTransmit(Status=%d)\n", Status));
+
+	return Status;
+
+	/* --------------------------- ERROR HANDLE --------------------------- */
+out6:
+	LM_URB_FREE(pObj, pPsPollContext, sizeof(TX_BUFFER));
+
+out5:
+	LM_URB_FREE(pObj, pRTSContext, sizeof(TX_BUFFER));
+
+out4:
+	LM_URB_FREE(pObj, pNullContext, sizeof(TX_BUFFER));
+
+out3:
+	for(i=0; i<BEACON_RING_SIZE; i++)
+	{
+		PTX_CONTEXT	pBeaconContext = &(pAd->BeaconContext[i]);
+		if (pBeaconContext)
+			LM_URB_FREE(pObj, pBeaconContext, sizeof(TX_BUFFER));
+	}
+
+out2:
+	if (pAd->MgmtDescRing.AllocVa)
+	{
+		pMgmtRing = &pAd->MgmtRing;
+		for(i=0; i<MGMT_RING_SIZE; i++)
+		{
+			pMLMEContext = (PTX_CONTEXT) pAd->MgmtRing.Cell[i].AllocVa;
+			if (pMLMEContext)
+				LM_URB_FREE(pObj, pMLMEContext, sizeof(TX_BUFFER));
+		}
+		os_free_mem(pAd, pAd->MgmtDescRing.AllocVa);
+		pAd->MgmtDescRing.AllocVa = NULL;
+	}
+
+out1:
+	for (acidx = 0; acidx < 4; acidx++)
+	{
+		PHT_TX_CONTEXT pTxContext = &(pAd->TxContext[acidx]);
+		if (pTxContext)
+			LM_URB_FREE(pObj, pTxContext, sizeof(HTTX_BUFFER));
+	}
+
+	// Here we didn't have any pre-allocated memory need to free.
+
+	return Status;
+}
+
+
+/*
+========================================================================
+Routine Description:
+    Allocate DMA memory blocks for send, receive.
+
+Arguments:
+    pAd					Pointer to our adapter
+
+Return Value:
+	NDIS_STATUS_SUCCESS
+	NDIS_STATUS_FAILURE
+	NDIS_STATUS_RESOURCES
+
+Note:
+========================================================================
+*/
+NDIS_STATUS	RTMPAllocTxRxRingMemory(
+	IN	PRTMP_ADAPTER	pAd)
+{
+//	COUNTER_802_11	pCounter = &pAd->WlanCounters;
+	NDIS_STATUS		Status;
+	INT				num;
+
+
+	DBGPRINT(RT_DEBUG_TRACE, ("--> RTMPAllocTxRxRingMemory\n"));
+
+
+	do
+	{
+		// Init the CmdQ and CmdQLock
+		NdisAllocateSpinLock(&pAd->CmdQLock);
+		NdisAcquireSpinLock(&pAd->CmdQLock);
+		RTUSBInitializeCmdQ(&pAd->CmdQ);
+		NdisReleaseSpinLock(&pAd->CmdQLock);
+
+
+		NdisAllocateSpinLock(&pAd->MLMEBulkOutLock);
+		//NdisAllocateSpinLock(&pAd->MLMEWaitQueueLock);
+		NdisAllocateSpinLock(&pAd->BulkOutLock[0]);
+		NdisAllocateSpinLock(&pAd->BulkOutLock[1]);
+		NdisAllocateSpinLock(&pAd->BulkOutLock[2]);
+		NdisAllocateSpinLock(&pAd->BulkOutLock[3]);
+		NdisAllocateSpinLock(&pAd->BulkOutLock[4]);
+		NdisAllocateSpinLock(&pAd->BulkOutLock[5]);
+		NdisAllocateSpinLock(&pAd->BulkInLock);
+
+		for (num = 0; num < NUM_OF_TX_RING; num++)
+		{
+			NdisAllocateSpinLock(&pAd->TxContextQueueLock[num]);
+		}
+
+
+//		NdisAllocateSpinLock(&pAd->MemLock);	// Not used in RT28XX
+
+//		NdisAllocateSpinLock(&pAd->MacTabLock); // init it in UserCfgInit()
+//		NdisAllocateSpinLock(&pAd->BATabLock); // init it in BATableInit()
+
+//		for(num=0; num<MAX_LEN_OF_BA_REC_TABLE; num++)
+//		{
+//			NdisAllocateSpinLock(&pAd->BATable.BARecEntry[num].RxReRingLock);
+//		}
+
+		//
+		// Init Mac Table
+		//
+//		MacTableInitialize(pAd);
+
+		//
+		// Init send data structures and related parameters
+		//
+		Status = NICInitTransmit(pAd);
+		if (Status != NDIS_STATUS_SUCCESS)
+			break;
+
+		//
+		// Init receive data structures and related parameters
+		//
+		Status = NICInitRecv(pAd);
+		if (Status != NDIS_STATUS_SUCCESS)
+			break;
+
+		pAd->PendingIoCount = 1;
+
+	} while (FALSE);
+
+	NdisZeroMemory(&pAd->FragFrame, sizeof(FRAGMENT_FRAME));
+	pAd->FragFrame.pFragPacket =  RTMP_AllocateFragPacketBuffer(pAd, RX_BUFFER_NORMSIZE);
+
+	if (pAd->FragFrame.pFragPacket == NULL)
+	{
+		Status = NDIS_STATUS_RESOURCES;
+	}
+
+	DBGPRINT_S(Status, ("<-- RTMPAllocTxRxRingMemory, Status=%x\n", Status));
+	return Status;
+}
+
+
+/*
+========================================================================
+Routine Description:
+	Calls USB_InterfaceStop and frees memory allocated for the URBs
+    calls NdisMDeregisterDevice and frees the memory
+    allocated in VNetInitialize for the Adapter Object
+
+Arguments:
+	*pAd				the raxx interface data pointer
+
+Return Value:
+	None
+
+Note:
+========================================================================
+*/
+VOID	RTMPFreeTxRxRingMemory(
+	IN	PRTMP_ADAPTER	pAd)
+{
+#define LM_URB_FREE(pObj, Context, BufferSize)				\
+	if (NULL != Context->pUrb) {							\
+		RTUSB_UNLINK_URB(Context->pUrb);					\
+		RTUSB_FREE_URB(Context->pUrb);						\
+		Context->pUrb = NULL; }								\
+	if (NULL != Context->TransferBuffer) {					\
+		RTUSB_URB_FREE_BUFFER(pObj->pUsb_Dev, BufferSize,	\
+								Context->TransferBuffer,	\
+								Context->data_dma);			\
+		Context->TransferBuffer = NULL; }
+
+
+	UINT                i, acidx;
+	PTX_CONTEXT			pNullContext   = &pAd->NullContext;
+	PTX_CONTEXT			pPsPollContext = &pAd->PsPollContext;
+	PTX_CONTEXT			pRTSContext    = &pAd->RTSContext;
+//	PHT_TX_CONTEXT		pHTTXContext;
+	//PRTMP_REORDERBUF	pReorderBuf;
+	POS_COOKIE			pObj = (POS_COOKIE) pAd->OS_Cookie;
+//	RTMP_TX_RING		*pTxRing;
+
+	DBGPRINT(RT_DEBUG_ERROR, ("---> RTMPFreeTxRxRingMemory\n"));
+	pObj = pObj;
+
+	// Free all resources for the RECEIVE buffer queue.
+	for(i=0; i<(RX_RING_SIZE); i++)
+	{
+		PRX_CONTEXT  pRxContext = &(pAd->RxContext[i]);
+		if (pRxContext)
+			LM_URB_FREE(pObj, pRxContext, MAX_RXBULK_SIZE);
+	}
+
+	// Free PsPoll frame resource
+	LM_URB_FREE(pObj, pPsPollContext, sizeof(TX_BUFFER));
+
+	// Free NULL frame resource
+	LM_URB_FREE(pObj, pNullContext, sizeof(TX_BUFFER));
+
+	// Free RTS frame resource
+	LM_URB_FREE(pObj, pRTSContext, sizeof(TX_BUFFER));
+
+
+	// Free beacon frame resource
+	for(i=0; i<BEACON_RING_SIZE; i++)
+	{
+		PTX_CONTEXT	pBeaconContext = &(pAd->BeaconContext[i]);
+		if (pBeaconContext)
+			LM_URB_FREE(pObj, pBeaconContext, sizeof(TX_BUFFER));
+	}
+
+
+	// Free mgmt frame resource
+	for(i = 0; i < MGMT_RING_SIZE; i++)
+	{
+		PTX_CONTEXT pMLMEContext = (PTX_CONTEXT)pAd->MgmtRing.Cell[i].AllocVa;
+		//LM_URB_FREE(pObj, pMLMEContext, sizeof(TX_BUFFER));
+		if (NULL != pAd->MgmtRing.Cell[i].pNdisPacket)
+		{
+			RTMPFreeNdisPacket(pAd, pAd->MgmtRing.Cell[i].pNdisPacket);
+			pAd->MgmtRing.Cell[i].pNdisPacket = NULL;
+			pMLMEContext->TransferBuffer = NULL;
+		}
+
+		if (pMLMEContext)
+		{
+			if (NULL != pMLMEContext->pUrb)
+			{
+				RTUSB_UNLINK_URB(pMLMEContext->pUrb);
+				RTUSB_FREE_URB(pMLMEContext->pUrb);
+				pMLMEContext->pUrb = NULL;
+			}
+		}
+	}
+	if (pAd->MgmtDescRing.AllocVa)
+		os_free_mem(pAd, pAd->MgmtDescRing.AllocVa);
+
+
+	// Free Tx frame resource
+	for (acidx = 0; acidx < 4; acidx++)
+		{
+		PHT_TX_CONTEXT pHTTXContext = &(pAd->TxContext[acidx]);
+			if (pHTTXContext)
+				LM_URB_FREE(pObj, pHTTXContext, sizeof(HTTX_BUFFER));
+		}
+
+	if (pAd->FragFrame.pFragPacket)
+		RELEASE_NDIS_PACKET(pAd, pAd->FragFrame.pFragPacket, NDIS_STATUS_SUCCESS);
+
+	for(i=0; i<6; i++)
+	{
+		NdisFreeSpinLock(&pAd->BulkOutLock[i]);
+	}
+
+	NdisFreeSpinLock(&pAd->BulkInLock);
+	NdisFreeSpinLock(&pAd->MLMEBulkOutLock);
+
+	NdisFreeSpinLock(&pAd->CmdQLock);
+	// Clear all pending bulk-out request flags.
+	RTUSB_CLEAR_BULK_FLAG(pAd, 0xffffffff);
+
+//	NdisFreeSpinLock(&pAd->MacTabLock);
+
+//	for(i=0; i<MAX_LEN_OF_BA_REC_TABLE; i++)
+//	{
+//		NdisFreeSpinLock(&pAd->BATable.BARecEntry[i].RxReRingLock);
+//	}
+
+	DBGPRINT(RT_DEBUG_ERROR, ("<--- RTMPFreeTxRxRingMemory\n"));
+}
+
+
+/*
+========================================================================
+Routine Description:
+    Write WLAN MAC address to USB 2870.
+
+Arguments:
+    pAd					Pointer to our adapter
+
+Return Value:
+	NDIS_STATUS_SUCCESS
+
+Note:
+========================================================================
+*/
+NDIS_STATUS	RTUSBWriteHWMACAddress(
+	IN	PRTMP_ADAPTER		pAd)
+{
+	MAC_DW0_STRUC	StaMacReg0;
+	MAC_DW1_STRUC	StaMacReg1;
+	NDIS_STATUS		Status = NDIS_STATUS_SUCCESS;
+	LARGE_INTEGER	NOW;
+
+
+	// initialize the random number generator
+	RTMP_GetCurrentSystemTime(&NOW);
+
+	if (pAd->bLocalAdminMAC != TRUE)
+	{
+		pAd->CurrentAddress[0] = pAd->PermanentAddress[0];
+		pAd->CurrentAddress[1] = pAd->PermanentAddress[1];
+		pAd->CurrentAddress[2] = pAd->PermanentAddress[2];
+		pAd->CurrentAddress[3] = pAd->PermanentAddress[3];
+		pAd->CurrentAddress[4] = pAd->PermanentAddress[4];
+		pAd->CurrentAddress[5] = pAd->PermanentAddress[5];
+	}
+	// Write New MAC address to MAC_CSR2 & MAC_CSR3 & let ASIC know our new MAC
+	StaMacReg0.field.Byte0 = pAd->CurrentAddress[0];
+	StaMacReg0.field.Byte1 = pAd->CurrentAddress[1];
+	StaMacReg0.field.Byte2 = pAd->CurrentAddress[2];
+	StaMacReg0.field.Byte3 = pAd->CurrentAddress[3];
+	StaMacReg1.field.Byte4 = pAd->CurrentAddress[4];
+	StaMacReg1.field.Byte5 = pAd->CurrentAddress[5];
+	StaMacReg1.field.U2MeMask = 0xff;
+	DBGPRINT_RAW(RT_DEBUG_TRACE, ("Local MAC = %02x:%02x:%02x:%02x:%02x:%02x\n",
+			pAd->CurrentAddress[0], pAd->CurrentAddress[1], pAd->CurrentAddress[2],
+			pAd->CurrentAddress[3], pAd->CurrentAddress[4], pAd->CurrentAddress[5]));
+
+	RTUSBWriteMACRegister(pAd, MAC_ADDR_DW0, StaMacReg0.word);
+	RTUSBWriteMACRegister(pAd, MAC_ADDR_DW1, StaMacReg1.word);
+	return Status;
+}
+
+
+/*
+========================================================================
+Routine Description:
+    Disable DMA.
+
+Arguments:
+	*pAd				the raxx interface data pointer
+
+Return Value:
+	None
+
+Note:
+========================================================================
+*/
+VOID RT28XXDMADisable(
+	IN RTMP_ADAPTER			*pAd)
+{
+	// no use
+}
+
+
+/*
+========================================================================
+Routine Description:
+    Enable DMA.
+
+Arguments:
+	*pAd				the raxx interface data pointer
+
+Return Value:
+	None
+
+Note:
+========================================================================
+*/
+VOID RT28XXDMAEnable(
+	IN RTMP_ADAPTER			*pAd)
+{
+	WPDMA_GLO_CFG_STRUC	GloCfg;
+	USB_DMA_CFG_STRUC	UsbCfg;
+	int					i = 0;
+
+
+	RTMP_IO_WRITE32(pAd, MAC_SYS_CTRL, 0x4);
+	do
+	{
+		RTMP_IO_READ32(pAd, WPDMA_GLO_CFG, &GloCfg.word);
+		if ((GloCfg.field.TxDMABusy == 0)  && (GloCfg.field.RxDMABusy == 0))
+			break;
+
+		DBGPRINT(RT_DEBUG_TRACE, ("==>  DMABusy\n"));
+		RTMPusecDelay(1000);
+		i++;
+	}while ( i <200);
+
+
+	RTMPusecDelay(50);
+	GloCfg.field.EnTXWriteBackDDONE = 1;
+	GloCfg.field.EnableRxDMA = 1;
+	GloCfg.field.EnableTxDMA = 1;
+	DBGPRINT(RT_DEBUG_TRACE, ("<== WRITE DMA offset 0x208 = 0x%x\n", GloCfg.word));
+	RTMP_IO_WRITE32(pAd, WPDMA_GLO_CFG, GloCfg.word);
+
+	UsbCfg.word = 0;
+	UsbCfg.field.phyclear = 0;
+	/* usb version is 1.1,do not use bulk in aggregation */
+	if (pAd->BulkInMaxPacketSize == 512)
+			UsbCfg.field.RxBulkAggEn = 1;
+	/* for last packet, PBF might use more than limited, so minus 2 to prevent from error */
+	UsbCfg.field.RxBulkAggLmt = (MAX_RXBULK_SIZE /1024)-3;
+	UsbCfg.field.RxBulkAggTOut = 0x80; /* 2006-10-18 */
+	UsbCfg.field.RxBulkEn = 1;
+	UsbCfg.field.TxBulkEn = 1;
+
+	RTUSBWriteMACRegister(pAd, USB_DMA_CFG, UsbCfg.word);
+
+}
+
+/********************************************************************
+  *
+  *	2870 Beacon Update Related functions.
+  *
+  ********************************************************************/
+
+/*
+========================================================================
+Routine Description:
+    Write Beacon buffer to Asic.
+
+Arguments:
+	*pAd				the raxx interface data pointer
+
+Return Value:
+	None
+
+Note:
+========================================================================
+*/
+VOID RT28xx_UpdateBeaconToAsic(
+	IN RTMP_ADAPTER		*pAd,
+	IN INT				apidx,
+	IN ULONG			FrameLen,
+	IN ULONG			UpdatePos)
+{
+	PUCHAR		pBeaconFrame = NULL;
+	UCHAR			*ptr;
+	UINT			i, padding;
+	BEACON_SYNC_STRUCT	*pBeaconSync = pAd->CommonCfg.pBeaconSync;
+	UINT32			longValue;
+//	USHORT			shortValue;
+	BOOLEAN			bBcnReq = FALSE;
+	UCHAR			bcn_idx = 0;
+
+
+	if (pBeaconFrame == NULL)
+	{
+		DBGPRINT(RT_DEBUG_ERROR,("pBeaconFrame is NULL!\n"));
+		return;
+	}
+
+	if (pBeaconSync == NULL)
+	{
+		DBGPRINT(RT_DEBUG_ERROR,("pBeaconSync is NULL!\n"));
+		return;
+	}
+
+	//if ((pAd->WdsTab.Mode == WDS_BRIDGE_MODE) ||
+	//	((pAd->ApCfg.MBSSID[apidx].MSSIDDev == NULL) || !(pAd->ApCfg.MBSSID[apidx].MSSIDDev->flags & IFF_UP))
+	//	)
+	if (bBcnReq == FALSE)
+	{
+		/* when the ra interface is down, do not send its beacon frame */
+		/* clear all zero */
+		for(i=0; i<TXWI_SIZE; i+=4) {
+			RTMP_IO_WRITE32(pAd, pAd->BeaconOffset[bcn_idx] + i, 0x00);
+		}
+		pBeaconSync->BeaconBitMap &= (~(BEACON_BITMAP_MASK & (1 << bcn_idx)));
+		NdisZeroMemory(pBeaconSync->BeaconTxWI[bcn_idx], TXWI_SIZE);
+	}
+	else
+	{
+		ptr = (PUCHAR)&pAd->BeaconTxWI;
+		if (NdisEqualMemory(pBeaconSync->BeaconTxWI[bcn_idx], &pAd->BeaconTxWI, TXWI_SIZE) == FALSE)
+		{	// If BeaconTxWI changed, we need to rewrite the TxWI for the Beacon frames.
+			pBeaconSync->BeaconBitMap &= (~(BEACON_BITMAP_MASK & (1 << bcn_idx)));
+			NdisMoveMemory(pBeaconSync->BeaconTxWI[bcn_idx], &pAd->BeaconTxWI, TXWI_SIZE);
+		}
+
+		if ((pBeaconSync->BeaconBitMap & (1 << bcn_idx)) != (1 << bcn_idx))
+		{
+			for (i=0; i<TXWI_SIZE; i+=4)  // 16-byte TXWI field
+			{
+				longValue =  *ptr + (*(ptr+1)<<8) + (*(ptr+2)<<16) + (*(ptr+3)<<24);
+				RTMP_IO_WRITE32(pAd, pAd->BeaconOffset[bcn_idx] + i, longValue);
+				ptr += 4;
+			}
+		}
+
+		ptr = pBeaconSync->BeaconBuf[bcn_idx];
+		padding = (FrameLen & 0x01);
+		NdisZeroMemory((PUCHAR)(pBeaconFrame + FrameLen), padding);
+		FrameLen += padding;
+		for (i = 0 ; i < FrameLen /*HW_BEACON_OFFSET*/; i += 2)
+		{
+			if (NdisEqualMemory(ptr, pBeaconFrame, 2) == FALSE)
+			{
+				NdisMoveMemory(ptr, pBeaconFrame, 2);
+				//shortValue = *ptr + (*(ptr+1)<<8);
+				//RTMP_IO_WRITE8(pAd, pAd->BeaconOffset[bcn_idx] + TXWI_SIZE + i, shortValue);
+				RTUSBMultiWrite(pAd, pAd->BeaconOffset[bcn_idx] + TXWI_SIZE + i, ptr, 2);
+			}
+			ptr +=2;
+			pBeaconFrame += 2;
+		}
+
+		pBeaconSync->BeaconBitMap |= (1 << bcn_idx);
+
+		// For AP interface, set the DtimBitOn so that we can send Bcast/Mcast frame out after this beacon frame.
+}
+
+}
+
+
+VOID RTUSBBssBeaconStop(
+	IN RTMP_ADAPTER *pAd)
+{
+	BEACON_SYNC_STRUCT	*pBeaconSync;
+	int i, offset;
+	BOOLEAN	Cancelled = TRUE;
+
+	pBeaconSync = pAd->CommonCfg.pBeaconSync;
+	if (pBeaconSync && pBeaconSync->EnableBeacon)
+	{
+		INT NumOfBcn;
+
+		{
+			NumOfBcn = MAX_MESH_NUM;
+		}
+
+		RTMPCancelTimer(&pAd->CommonCfg.BeaconUpdateTimer, &Cancelled);
+
+		for(i=0; i<NumOfBcn; i++)
+		{
+			NdisZeroMemory(pBeaconSync->BeaconBuf[i], HW_BEACON_OFFSET);
+			NdisZeroMemory(pBeaconSync->BeaconTxWI[i], TXWI_SIZE);
+
+			for (offset=0; offset<HW_BEACON_OFFSET; offset+=4)
+				RTMP_IO_WRITE32(pAd, pAd->BeaconOffset[i] + offset, 0x00);
+
+			pBeaconSync->CapabilityInfoLocationInBeacon[i] = 0;
+			pBeaconSync->TimIELocationInBeacon[i] = 0;
+		}
+		pBeaconSync->BeaconBitMap = 0;
+		pBeaconSync->DtimBitOn = 0;
+	}
+}
+
+
+VOID RTUSBBssBeaconStart(
+	IN RTMP_ADAPTER *pAd)
+{
+	int apidx;
+	BEACON_SYNC_STRUCT	*pBeaconSync;
+//	LARGE_INTEGER	tsfTime, deltaTime;
+
+	pBeaconSync = pAd->CommonCfg.pBeaconSync;
+	if (pBeaconSync && pBeaconSync->EnableBeacon)
+	{
+		INT NumOfBcn;
+
+		{
+			NumOfBcn = MAX_MESH_NUM;
+		}
+
+		for(apidx=0; apidx<NumOfBcn; apidx++)
+		{
+			UCHAR CapabilityInfoLocationInBeacon = 0;
+			UCHAR TimIELocationInBeacon = 0;
+
+
+			NdisZeroMemory(pBeaconSync->BeaconBuf[apidx], HW_BEACON_OFFSET);
+			pBeaconSync->CapabilityInfoLocationInBeacon[apidx] = CapabilityInfoLocationInBeacon;
+			pBeaconSync->TimIELocationInBeacon[apidx] = TimIELocationInBeacon;
+			NdisZeroMemory(pBeaconSync->BeaconTxWI[apidx], TXWI_SIZE);
+		}
+		pBeaconSync->BeaconBitMap = 0;
+		pBeaconSync->DtimBitOn = 0;
+		pAd->CommonCfg.BeaconUpdateTimer.Repeat = TRUE;
+
+		pAd->CommonCfg.BeaconAdjust = 0;
+		pAd->CommonCfg.BeaconFactor = 0xffffffff / (pAd->CommonCfg.BeaconPeriod << 10);
+		pAd->CommonCfg.BeaconRemain = (0xffffffff % (pAd->CommonCfg.BeaconPeriod << 10)) + 1;
+		DBGPRINT(RT_DEBUG_TRACE, ("RTUSBBssBeaconStart:BeaconFactor=%d, BeaconRemain=%d!\n",
+									pAd->CommonCfg.BeaconFactor, pAd->CommonCfg.BeaconRemain));
+		RTMPSetTimer(&pAd->CommonCfg.BeaconUpdateTimer, 10 /*pAd->CommonCfg.BeaconPeriod*/);
+
+	}
+}
+
+
+VOID RTUSBBssBeaconInit(
+	IN RTMP_ADAPTER *pAd)
+{
+	BEACON_SYNC_STRUCT	*pBeaconSync;
+	int i;
+
+	os_alloc_mem(pAd, (PUCHAR *)(&pAd->CommonCfg.pBeaconSync), sizeof(BEACON_SYNC_STRUCT));
+	//NdisAllocMemory(pAd->CommonCfg.pBeaconSync, sizeof(BEACON_SYNC_STRUCT), MEM_ALLOC_FLAG);
+	if (pAd->CommonCfg.pBeaconSync)
+	{
+		pBeaconSync = pAd->CommonCfg.pBeaconSync;
+		NdisZeroMemory(pBeaconSync, sizeof(BEACON_SYNC_STRUCT));
+		for(i=0; i < HW_BEACON_MAX_COUNT; i++)
+		{
+			NdisZeroMemory(pBeaconSync->BeaconBuf[i], HW_BEACON_OFFSET);
+			pBeaconSync->CapabilityInfoLocationInBeacon[i] = 0;
+			pBeaconSync->TimIELocationInBeacon[i] = 0;
+			NdisZeroMemory(pBeaconSync->BeaconTxWI[i], TXWI_SIZE);
+		}
+		pBeaconSync->BeaconBitMap = 0;
+
+		//RTMPInitTimer(pAd, &pAd->CommonCfg.BeaconUpdateTimer, GET_TIMER_FUNCTION(BeaconUpdateExec), pAd, TRUE);
+		pBeaconSync->EnableBeacon = TRUE;
+	}
+}
+
+
+VOID RTUSBBssBeaconExit(
+	IN RTMP_ADAPTER *pAd)
+{
+	BEACON_SYNC_STRUCT	*pBeaconSync;
+	BOOLEAN	Cancelled = TRUE;
+	int i;
+
+	if (pAd->CommonCfg.pBeaconSync)
+	{
+		pBeaconSync = pAd->CommonCfg.pBeaconSync;
+		pBeaconSync->EnableBeacon = FALSE;
+		RTMPCancelTimer(&pAd->CommonCfg.BeaconUpdateTimer, &Cancelled);
+		pBeaconSync->BeaconBitMap = 0;
+
+		for(i=0; i<HW_BEACON_MAX_COUNT; i++)
+		{
+			NdisZeroMemory(pBeaconSync->BeaconBuf[i], HW_BEACON_OFFSET);
+			pBeaconSync->CapabilityInfoLocationInBeacon[i] = 0;
+			pBeaconSync->TimIELocationInBeacon[i] = 0;
+			NdisZeroMemory(pBeaconSync->BeaconTxWI[i], TXWI_SIZE);
+		}
+
+		os_free_mem(pAd, pAd->CommonCfg.pBeaconSync);
+		pAd->CommonCfg.pBeaconSync = NULL;
+	}
+}
+
+
+/*
+    ========================================================================
+    Routine Description:
+        For device work as AP mode but didn't have TBTT interrupt event, we need a mechanism
+        to update the beacon context in each Beacon interval. Here we use a periodical timer
+        to simulate the TBTT interrupt to handle the beacon context update.
+
+    Arguments:
+        SystemSpecific1         - Not used.
+        FunctionContext         - Pointer to our Adapter context.
+        SystemSpecific2         - Not used.
+        SystemSpecific3         - Not used.
+
+    Return Value:
+        None
+
+    ========================================================================
+*/
+VOID BeaconUpdateExec(
+    IN PVOID SystemSpecific1,
+    IN PVOID FunctionContext,
+    IN PVOID SystemSpecific2,
+    IN PVOID SystemSpecific3)
+{
+	PRTMP_ADAPTER	pAd = (PRTMP_ADAPTER)FunctionContext;
+	LARGE_INTEGER	tsfTime_a;//, tsfTime_b, deltaTime_exp, deltaTime_ab;
+	UINT32			delta, delta2MS, period2US, remain, remain_low, remain_high;
+//	BOOLEAN			positive;
+
+	if (pAd->CommonCfg.IsUpdateBeacon==TRUE)
+	{
+		ReSyncBeaconTime(pAd);
+
+
+	}
+
+	RTMP_IO_READ32(pAd, TSF_TIMER_DW0, &tsfTime_a.u.LowPart);
+	RTMP_IO_READ32(pAd, TSF_TIMER_DW1, &tsfTime_a.u.HighPart);
+
+
+	//positive=getDeltaTime(tsfTime_a, expectedTime, &deltaTime_exp);
+	period2US = (pAd->CommonCfg.BeaconPeriod << 10);
+	remain_high = pAd->CommonCfg.BeaconRemain * tsfTime_a.u.HighPart;
+	remain_low = tsfTime_a.u.LowPart % (pAd->CommonCfg.BeaconPeriod << 10);
+	remain = (remain_high + remain_low)%(pAd->CommonCfg.BeaconPeriod << 10);
+	delta = (pAd->CommonCfg.BeaconPeriod << 10) - remain;
+
+	delta2MS = (delta>>10);
+	if (delta2MS > 150)
+	{
+		pAd->CommonCfg.BeaconUpdateTimer.TimerValue = 100;
+		pAd->CommonCfg.IsUpdateBeacon=FALSE;
+	}
+	else
+	{
+		pAd->CommonCfg.BeaconUpdateTimer.TimerValue = delta2MS + 10;
+		pAd->CommonCfg.IsUpdateBeacon=TRUE;
+	}
+
+}
+
+
+/********************************************************************
+  *
+  *	2870 Radio on/off Related functions.
+  *
+  ********************************************************************/
+VOID RT28xxUsbMlmeRadioOn(
+	IN PRTMP_ADAPTER pAd)
+{
+	RTMP_CHIP_OP *pChipOps = &pAd->chipOps;
+
+    DBGPRINT(RT_DEBUG_TRACE,("RT28xxUsbMlmeRadioOn()\n"));
+
+	if (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_RADIO_OFF))
+		return;
+
+	{
+		AsicSendCommandToMcu(pAd, 0x31, 0xff, 0x00, 0x02);
+		RTMPusecDelay(10000);
+	}
+	//NICResetFromError(pAd);
+
+	// Enable Tx/Rx
+	RTMPEnableRxTx(pAd);
+
+	if (pChipOps->AsicReverseRfFromSleepMode)
+		pChipOps->AsicReverseRfFromSleepMode(pAd);
+
+	// Clear Radio off flag
+	RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_RADIO_OFF);
+
+		RTUSBBulkReceive(pAd);
+
+	// Set LED
+	RTMPSetLED(pAd, LED_RADIO_ON);
+}
+
+
+VOID RT28xxUsbMlmeRadioOFF(
+	IN PRTMP_ADAPTER pAd)
+{
+	WPDMA_GLO_CFG_STRUC	GloCfg;
+	UINT32	Value, i;
+
+	DBGPRINT(RT_DEBUG_TRACE,("RT28xxUsbMlmeRadioOFF()\n"));
+
+	if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_RADIO_OFF))
+		return;
+
+	// Clear PMKID cache.
+	pAd->StaCfg.SavedPMKNum = 0;
+	RTMPZeroMemory(pAd->StaCfg.SavedPMK, (PMKID_NO * sizeof(BSSID_INFO)));
+
+	// Link down first if any association exists
+	if (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))
+	{
+		if (INFRA_ON(pAd) || ADHOC_ON(pAd))
+		{
+			MLME_DISASSOC_REQ_STRUCT DisReq;
+			MLME_QUEUE_ELEM *pMsgElem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
+
+			if (pMsgElem)
+			{
+				COPY_MAC_ADDR(&DisReq.Addr, pAd->CommonCfg.Bssid);
+				DisReq.Reason =  REASON_DISASSOC_STA_LEAVING;
+
+				pMsgElem->Machine = ASSOC_STATE_MACHINE;
+				pMsgElem->MsgType = MT2_MLME_DISASSOC_REQ;
+				pMsgElem->MsgLen = sizeof(MLME_DISASSOC_REQ_STRUCT);
+				NdisMoveMemory(pMsgElem->Msg, &DisReq, sizeof(MLME_DISASSOC_REQ_STRUCT));
+
+				MlmeDisassocReqAction(pAd, pMsgElem);
+				kfree(pMsgElem);
+
+				RTMPusecDelay(1000);
+			}
+		}
+	}
+
+	// Set Radio off flag
+	RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_RADIO_OFF);
+
+	{
+		// Link down first if any association exists
+		if (INFRA_ON(pAd) || ADHOC_ON(pAd))
+			LinkDown(pAd, FALSE);
+		RTMPusecDelay(10000);
+
+		//==========================================
+		// Clean up old bss table
+		BssTableInit(&pAd->ScanTab);
+	}
+
+	// Set LED
+	RTMPSetLED(pAd, LED_RADIO_OFF);
+
+
+	if (pAd->CommonCfg.BBPCurrentBW == BW_40)
+	{
+		// Must using 40MHz.
+		AsicTurnOffRFClk(pAd, pAd->CommonCfg.CentralChannel);
+	}
+	else
+	{
+		// Must using 20MHz.
+		AsicTurnOffRFClk(pAd, pAd->CommonCfg.Channel);
+	}
+
+	// Disable Tx/Rx DMA
+	RTUSBReadMACRegister(pAd, WPDMA_GLO_CFG, &GloCfg.word);	   // disable DMA
+	GloCfg.field.EnableTxDMA = 0;
+	GloCfg.field.EnableRxDMA = 0;
+	RTUSBWriteMACRegister(pAd, WPDMA_GLO_CFG, GloCfg.word);	   // abort all TX rings
+
+	// Waiting for DMA idle
+	i = 0;
+	do
+	{
+		RTMP_IO_READ32(pAd, WPDMA_GLO_CFG, &GloCfg.word);
+		if ((GloCfg.field.TxDMABusy == 0) && (GloCfg.field.RxDMABusy == 0))
+			break;
+
+		RTMPusecDelay(1000);
+	}while (i++ < 100);
+
+	// Disable MAC Tx/Rx
+	RTMP_IO_READ32(pAd, MAC_SYS_CTRL, &Value);
+	Value &= (0xfffffff3);
+	RTMP_IO_WRITE32(pAd, MAC_SYS_CTRL, Value);
+
+	{
+		AsicSendCommandToMcu(pAd, 0x30, 0xff, 0xff, 0x02);
+	}
+}
+
+#endif // RTMP_MAC_USB //