diff options
Diffstat (limited to 'drivers/staging/winbond/mlmetxrx.c')
| -rw-r--r-- | drivers/staging/winbond/mlmetxrx.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/staging/winbond/mlmetxrx.c b/drivers/staging/winbond/mlmetxrx.c new file mode 100644 index 00000000000..46b091e9679 --- /dev/null +++ b/drivers/staging/winbond/mlmetxrx.c @@ -0,0 +1,150 @@ +//============================================================================ +// 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, PCHAR pData) +{ + int i; + + // Reclaim the data buffer + for (i = 0; i < MAX_NUM_TX_MMPDU; i++) { + if (pData == (PCHAR)&(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; +} + + + |