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