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//============================================================================
// Module Name:
// MLMETxRx.C
//
// Description:
// The interface between MDS (MAC Data Service) and MLME.
//
// Revision History:
// --------------------------------------------------------------------------
// 200209 UN20 Jennifer Xu
// Initial Release
// 20021108 PD43 Austin Liu
// 20030117 PD43 Austin Liu
// Deleted MLMEReturnPacket and MLMEProcThread()
//
// Copyright (c) 1996-2002 Winbond Electronics Corp. All Rights Reserved.
//============================================================================
#include "os_common.h"
void MLMEResetTxRx(PWB32_ADAPTER Adapter)
{
s32 i;
// Reset the interface between MDS and MLME
for (i = 0; i < MAX_NUM_TX_MMPDU; i++)
Adapter->sMlmeFrame.TxMMPDUInUse[i] = FALSE;
for (i = 0; i < MAX_NUM_RX_MMPDU; i++)
Adapter->sMlmeFrame.SaveRxBufSlotInUse[i] = FALSE;
Adapter->sMlmeFrame.wNumRxMMPDUInMLME = 0;
Adapter->sMlmeFrame.wNumRxMMPDUDiscarded = 0;
Adapter->sMlmeFrame.wNumRxMMPDU = 0;
Adapter->sMlmeFrame.wNumTxMMPDUDiscarded = 0;
Adapter->sMlmeFrame.wNumTxMMPDU = 0;
Adapter->sLocalPara.boCCAbusy = FALSE;
Adapter->sLocalPara.iPowerSaveMode = PWR_ACTIVE; // Power active
}
//=============================================================================
// Function:
// MLMEGetMMPDUBuffer()
//
// Description:
// Return the pointer to an available data buffer with
// the size MAX_MMPDU_SIZE for a MMPDU.
//
// Arguments:
// Adapter - pointer to the miniport adapter context.
//
// Return value:
// NULL : No available data buffer available
// Otherwise: Pointer to the data buffer
//=============================================================================
/* FIXME: Should this just be replaced with kmalloc() and kfree()? */
u8 *MLMEGetMMPDUBuffer(PWB32_ADAPTER Adapter)
{
s32 i;
u8 *returnVal;
for (i = 0; i< MAX_NUM_TX_MMPDU; i++) {
if (Adapter->sMlmeFrame.TxMMPDUInUse[i] == FALSE)
break;
}
if (i >= MAX_NUM_TX_MMPDU) return NULL;
returnVal = (u8 *)&(Adapter->sMlmeFrame.TxMMPDU[i]);
Adapter->sMlmeFrame.TxMMPDUInUse[i] = TRUE;
return returnVal;
}
//=============================================================================
u8 MLMESendFrame(PWB32_ADAPTER Adapter, u8 *pMMPDU, u16 len, u8 DataType)
/* DataType : FRAME_TYPE_802_11_MANAGEMENT, FRAME_TYPE_802_11_MANAGEMENT_CHALLENGE,
FRAME_TYPE_802_11_DATA */
{
if (Adapter->sMlmeFrame.IsInUsed != PACKET_FREE_TO_USE) {
Adapter->sMlmeFrame.wNumTxMMPDUDiscarded++;
return FALSE;
}
Adapter->sMlmeFrame.IsInUsed = PACKET_COME_FROM_MLME;
// Keep information for sending
Adapter->sMlmeFrame.pMMPDU = pMMPDU;
Adapter->sMlmeFrame.DataType = DataType;
// len must be the last setting due to QUERY_SIZE_SECOND of Mds
Adapter->sMlmeFrame.len = len;
Adapter->sMlmeFrame.wNumTxMMPDU++;
// H/W will enter power save by set the register. S/W don't send null frame
//with PWRMgt bit enbled to enter power save now.
// Transmit NDIS packet
Mds_Tx(Adapter);
return TRUE;
}
void
MLME_GetNextPacket(PADAPTER Adapter, PDESCRIPTOR pDes)
{
#define DESCRIPTOR_ADD_BUFFER( _D, _A, _S ) \
{\
_D->InternalUsed = _D->buffer_start_index + _D->buffer_number; \
_D->InternalUsed %= MAX_DESCRIPTOR_BUFFER_INDEX; \
_D->buffer_address[ _D->InternalUsed ] = _A; \
_D->buffer_size[ _D->InternalUsed ] = _S; \
_D->buffer_total_size += _S; \
_D->buffer_number++;\
}
DESCRIPTOR_ADD_BUFFER( pDes, Adapter->sMlmeFrame.pMMPDU, Adapter->sMlmeFrame.len );
pDes->Type = Adapter->sMlmeFrame.DataType;
}
void MLMEfreeMMPDUBuffer(PWB32_ADAPTER Adapter, s8 *pData)
{
int i;
// Reclaim the data buffer
for (i = 0; i < MAX_NUM_TX_MMPDU; i++) {
if (pData == (s8 *)&(Adapter->sMlmeFrame.TxMMPDU[i]))
break;
}
if (Adapter->sMlmeFrame.TxMMPDUInUse[i])
Adapter->sMlmeFrame.TxMMPDUInUse[i] = FALSE;
else {
// Something wrong
// PD43 Add debug code here???
}
}
void
MLME_SendComplete(PADAPTER Adapter, u8 PacketID, unsigned char SendOK)
{
MLME_TXCALLBACK TxCallback;
// Reclaim the data buffer
Adapter->sMlmeFrame.len = 0;
MLMEfreeMMPDUBuffer( Adapter, Adapter->sMlmeFrame.pMMPDU );
TxCallback.bResult = MLME_SUCCESS;
// Return resource
Adapter->sMlmeFrame.IsInUsed = PACKET_FREE_TO_USE;
}
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