diff options
Diffstat (limited to 'drivers/staging/vt6655/wroute.c')
| -rw-r--r-- | drivers/staging/vt6655/wroute.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/drivers/staging/vt6655/wroute.c b/drivers/staging/vt6655/wroute.c new file mode 100644 index 000000000000..219ae21654e2 --- /dev/null +++ b/drivers/staging/vt6655/wroute.c @@ -0,0 +1,211 @@ +/* + * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. + * All rights reserved. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * File: wroute.c + * + * Purpose: handle WMAC frame relay & filterring + * + * Author: Lyndon Chen + * + * Date: May 20, 2003 + * + * Functions: + * ROUTEbRelay - Relay packet + * + * Revision History: + * + */ + + +#if !defined(__MAC_H__) +#include "mac.h" +#endif +#if !defined(__TCRC_H__) +#include "tcrc.h" +#endif +#if !defined(__RXTX_H__) +#include "rxtx.h" +#endif +#if !defined(__WROUTE_H__) +#include "wroute.h" +#endif +#if !defined(__CARD_H__) +#include "card.h" +#endif +#if !defined(__BASEBAND_H__) +#include "baseband.h" +#endif +/*--------------------- Static Definitions -------------------------*/ + +/*--------------------- Static Classes ----------------------------*/ + +/*--------------------- Static Variables --------------------------*/ +static int msglevel =MSG_LEVEL_INFO; +//static int msglevel =MSG_LEVEL_DEBUG; +/*--------------------- Static Functions --------------------------*/ + +/*--------------------- Export Variables --------------------------*/ + + + +/* + * Description: + * Relay packet. Return TRUE if packet is copy to DMA1 + * + * Parameters: + * In: + * pDevice - + * pbySkbData - rx packet skb data + * Out: + * TURE, FALSE + * + * Return Value: TRUE if packet duplicate; otherwise FALSE + * + */ +BOOL ROUTEbRelay (PSDevice pDevice, PBYTE pbySkbData, UINT uDataLen, UINT uNodeIndex) +{ + PSMgmtObject pMgmt = pDevice->pMgmt; + PSTxDesc pHeadTD, pLastTD; + UINT cbFrameBodySize; + UINT uMACfragNum; + BYTE byPktTyp; + BOOL bNeedEncryption = FALSE; + SKeyItem STempKey; + PSKeyItem pTransmitKey = NULL; + UINT cbHeaderSize; + UINT ii; + PBYTE pbyBSSID; + + + + + if (AVAIL_TD(pDevice, TYPE_AC0DMA)<=0) { + DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Relay can't allocate TD1..\n"); + return FALSE; + } + + pHeadTD = pDevice->apCurrTD[TYPE_AC0DMA]; + + pHeadTD->m_td1TD1.byTCR = (TCR_EDP|TCR_STP); + + memcpy(pDevice->sTxEthHeader.abyDstAddr, (PBYTE)pbySkbData, U_HEADER_LEN); + + cbFrameBodySize = uDataLen - U_HEADER_LEN; + + if (ntohs(pDevice->sTxEthHeader.wType) > MAX_DATA_LEN) { + cbFrameBodySize += 8; + } + + if (pDevice->bEncryptionEnable == TRUE) { + bNeedEncryption = TRUE; + + // get group key + pbyBSSID = pDevice->abyBroadcastAddr; + if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == FALSE) { + pTransmitKey = NULL; + DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"KEY is NULL. [%d]\n", pDevice->pMgmt->eCurrMode); + } else { + DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n"); + } + } + + if (pDevice->bEnableHostWEP) { + if (uNodeIndex >= 0) { + pTransmitKey = &STempKey; + pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite; + pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex; + pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength; + pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16; + pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0; + memcpy(pTransmitKey->abyKey, + &pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0], + pTransmitKey->uKeyLength + ); + } + } + + uMACfragNum = cbGetFragCount(pDevice, pTransmitKey, cbFrameBodySize, &pDevice->sTxEthHeader); + + if (uMACfragNum > AVAIL_TD(pDevice,TYPE_AC0DMA)) { + return FALSE; + } + byPktTyp = (BYTE)pDevice->byPacketType; + + if (pDevice->bFixRate) { + if (pDevice->eCurrentPHYType == PHY_TYPE_11B) { + if (pDevice->uConnectionRate >= RATE_11M) { + pDevice->wCurrentRate = RATE_11M; + } else { + pDevice->wCurrentRate = (WORD)pDevice->uConnectionRate; + } + } else { + if ((pDevice->eCurrentPHYType == PHY_TYPE_11A) && + (pDevice->uConnectionRate <= RATE_6M)) { + pDevice->wCurrentRate = RATE_6M; + } else { + if (pDevice->uConnectionRate >= RATE_54M) + pDevice->wCurrentRate = RATE_54M; + else + pDevice->wCurrentRate = (WORD)pDevice->uConnectionRate; + } + } + } + else { + pDevice->wCurrentRate = pDevice->pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate; + } + + if (pDevice->wCurrentRate <= RATE_11M) + byPktTyp = PK_TYPE_11B; + + vGenerateFIFOHeader(pDevice, byPktTyp, pDevice->pbyTmpBuff, bNeedEncryption, + cbFrameBodySize, TYPE_AC0DMA, pHeadTD, + &pDevice->sTxEthHeader, pbySkbData, pTransmitKey, uNodeIndex, + &uMACfragNum, + &cbHeaderSize + ); + + if (MACbIsRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PS)) { + // Disable PS + MACbPSWakeup(pDevice->PortOffset); + } + + pDevice->bPWBitOn = FALSE; + + pLastTD = pHeadTD; + for (ii = 0; ii < uMACfragNum; ii++) { + // Poll Transmit the adapter + wmb(); + pHeadTD->m_td0TD0.f1Owner=OWNED_BY_NIC; + wmb(); + if (ii == (uMACfragNum - 1)) + pLastTD = pHeadTD; + pHeadTD = pHeadTD->next; + } + + pLastTD->pTDInfo->skb = 0; + pLastTD->pTDInfo->byFlags = 0; + + pDevice->apCurrTD[TYPE_AC0DMA] = pHeadTD; + + MACvTransmitAC0(pDevice->PortOffset); + + return TRUE; +} + + + |