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android-kvm / linux / 776d680711f4836964f3005ee53794661ca74629 / . / drivers / staging / vt6655 / rxtx.c
blob: 7a183f55e7eb2f12a79b3a55cdd63571b832b77f [file] [log] [blame]
/*
* 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: rxtx.c
*
* Purpose: handle WMAC/802.3/802.11 rx & tx functions
*
* Author: Lyndon Chen
*
* Date: May 20, 2003
*
* Functions:
* s_vGenerateTxParameter - Generate tx dma required parameter.
* vGenerateMACHeader - Translate 802.3 to 802.11 header
* cbGetFragCount - Calculate fragment number count
* csBeacon_xmit - beacon tx function
* csMgmt_xmit - management tx function
* s_cbFillTxBufHead - fulfill tx dma buffer header
* s_uGetDataDuration - get tx data required duration
* s_uFillDataHead- fulfill tx data duration header
* s_uGetRTSCTSDuration- get rtx/cts required duration
* s_uGetRTSCTSRsvTime- get rts/cts reserved time
* s_uGetTxRsvTime- get frame reserved time
* s_vFillCTSHead- fulfill CTS ctl header
* s_vFillFragParameter- Set fragment ctl parameter.
* s_vFillRTSHead- fulfill RTS ctl header
* s_vFillTxKey- fulfill tx encrypt key
* s_vSWencryption- Software encrypt header
* vDMA0_tx_80211- tx 802.11 frame via dma0
* vGenerateFIFOHeader- Generate tx FIFO ctl header
*
* Revision History:
*
*/
#include "device.h"
#include "rxtx.h"
#include "tether.h"
#include "card.h"
#include "bssdb.h"
#include "mac.h"
#include "baseband.h"
#include "michael.h"
#include "tkip.h"
#include "tcrc.h"
#include "wctl.h"
#include "wroute.h"
#include "hostap.h"
#include "rf.h"
/*--------------------- Static Definitions -------------------------*/
/*--------------------- Static Classes ----------------------------*/
/*--------------------- Static Variables --------------------------*/
/*--------------------- Static Functions --------------------------*/
/*--------------------- Static Definitions -------------------------*/
#define CRITICAL_PACKET_LEN 256 // if packet size < 256 -> in-direct send
// packet size >= 256 -> direct send
static const unsigned short wTimeStampOff[2][MAX_RATE] = {
{384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23}, // Long Preamble
{384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23}, // Short Preamble
};
static const unsigned short wFB_Opt0[2][5] = {
{RATE_12M, RATE_18M, RATE_24M, RATE_36M, RATE_48M}, // fallback_rate0
{RATE_12M, RATE_12M, RATE_18M, RATE_24M, RATE_36M}, // fallback_rate1
};
static const unsigned short wFB_Opt1[2][5] = {
{RATE_12M, RATE_18M, RATE_24M, RATE_24M, RATE_36M}, // fallback_rate0
{RATE_6M , RATE_6M, RATE_12M, RATE_12M, RATE_18M}, // fallback_rate1
};
#define RTSDUR_BB 0
#define RTSDUR_BA 1
#define RTSDUR_AA 2
#define CTSDUR_BA 3
#define RTSDUR_BA_F0 4
#define RTSDUR_AA_F0 5
#define RTSDUR_BA_F1 6
#define RTSDUR_AA_F1 7
#define CTSDUR_BA_F0 8
#define CTSDUR_BA_F1 9
#define DATADUR_B 10
#define DATADUR_A 11
#define DATADUR_A_F0 12
#define DATADUR_A_F1 13
/*--------------------- Static Functions --------------------------*/
static
void
s_vFillTxKey(
struct vnt_private *pDevice,
unsigned char *pbyBuf,
unsigned char *pbyIVHead,
PSKeyItem pTransmitKey,
unsigned char *pbyHdrBuf,
unsigned short wPayloadLen,
unsigned char *pMICHDR
);
static
void
s_vFillRTSHead(
struct vnt_private *pDevice,
unsigned char byPktType,
void *pvRTS,
unsigned int cbFrameLength,
bool bNeedAck,
bool bDisCRC,
PSEthernetHeader psEthHeader,
unsigned short wCurrentRate,
unsigned char byFBOption
);
static
void
s_vGenerateTxParameter(
struct vnt_private *pDevice,
unsigned char byPktType,
void *pTxBufHead,
void *pvRrvTime,
void *pvRTS,
void *pvCTS,
unsigned int cbFrameSize,
bool bNeedACK,
unsigned int uDMAIdx,
PSEthernetHeader psEthHeader,
unsigned short wCurrentRate
);
static void s_vFillFragParameter(
struct vnt_private *pDevice,
unsigned char *pbyBuffer,
unsigned int uTxType,
void *pvtdCurr,
unsigned short wFragType,
unsigned int cbReqCount
);
static unsigned int
s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
unsigned char *pbyTxBufferAddr, unsigned int cbFrameBodySize,
unsigned int uDMAIdx, PSTxDesc pHeadTD,
PSEthernetHeader psEthHeader, unsigned char *pPacket,
bool bNeedEncrypt, PSKeyItem pTransmitKey,
unsigned int uNodeIndex, unsigned int *puMACfragNum);
static
__le16
s_uFillDataHead(
struct vnt_private *pDevice,
unsigned char byPktType,
void *pTxDataHead,
unsigned int cbFrameLength,
unsigned int uDMAIdx,
bool bNeedAck,
unsigned int uFragIdx,
unsigned int cbLastFragmentSize,
unsigned int uMACfragNum,
unsigned char byFBOption,
unsigned short wCurrentRate
);
/*--------------------- Export Variables --------------------------*/
static
void
s_vFillTxKey(
struct vnt_private *pDevice,
unsigned char *pbyBuf,
unsigned char *pbyIVHead,
PSKeyItem pTransmitKey,
unsigned char *pbyHdrBuf,
unsigned short wPayloadLen,
unsigned char *pMICHDR
)
{
struct vnt_mic_hdr *mic_hdr = (struct vnt_mic_hdr *)pMICHDR;
unsigned long *pdwIV = (unsigned long *)pbyIVHead;
unsigned long *pdwExtIV = (unsigned long *)((unsigned char *)pbyIVHead+4);
PS802_11Header pMACHeader = (PS802_11Header)pbyHdrBuf;
unsigned long dwRevIVCounter;
unsigned char byKeyIndex = 0;
//Fill TXKEY
if (pTransmitKey == NULL)
return;
dwRevIVCounter = cpu_to_le32(pDevice->dwIVCounter);
*pdwIV = pDevice->dwIVCounter;
byKeyIndex = pTransmitKey->dwKeyIndex & 0xf;
if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) {
if (pTransmitKey->uKeyLength == WLAN_WEP232_KEYLEN) {
memcpy(pDevice->abyPRNG, (unsigned char *)&(dwRevIVCounter), 3);
memcpy(pDevice->abyPRNG+3, pTransmitKey->abyKey, pTransmitKey->uKeyLength);
} else {
memcpy(pbyBuf, (unsigned char *)&(dwRevIVCounter), 3);
memcpy(pbyBuf+3, pTransmitKey->abyKey, pTransmitKey->uKeyLength);
if (pTransmitKey->uKeyLength == WLAN_WEP40_KEYLEN) {
memcpy(pbyBuf+8, (unsigned char *)&(dwRevIVCounter), 3);
memcpy(pbyBuf+11, pTransmitKey->abyKey, pTransmitKey->uKeyLength);
}
memcpy(pDevice->abyPRNG, pbyBuf, 16);
}
// Append IV after Mac Header
*pdwIV &= WEP_IV_MASK;//00000000 11111111 11111111 11111111
*pdwIV |= (unsigned long)byKeyIndex << 30;
*pdwIV = cpu_to_le32(*pdwIV);
pDevice->dwIVCounter++;
if (pDevice->dwIVCounter > WEP_IV_MASK)
pDevice->dwIVCounter = 0;
} else if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
pTransmitKey->wTSC15_0++;
if (pTransmitKey->wTSC15_0 == 0)
pTransmitKey->dwTSC47_16++;
TKIPvMixKey(pTransmitKey->abyKey, pDevice->abyCurrentNetAddr,
pTransmitKey->wTSC15_0, pTransmitKey->dwTSC47_16, pDevice->abyPRNG);
memcpy(pbyBuf, pDevice->abyPRNG, 16);
// Make IV
memcpy(pdwIV, pDevice->abyPRNG, 3);
*(pbyIVHead+3) = (unsigned char)(((byKeyIndex << 6) & 0xc0) | 0x20); // 0x20 is ExtIV
// Append IV&ExtIV after Mac Header
*pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16);
pr_debug("vFillTxKey()---- pdwExtIV: %lx\n", *pdwExtIV);
} else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) {
pTransmitKey->wTSC15_0++;
if (pTransmitKey->wTSC15_0 == 0)
pTransmitKey->dwTSC47_16++;
memcpy(pbyBuf, pTransmitKey->abyKey, 16);
// Make IV
*pdwIV = 0;
*(pbyIVHead+3) = (unsigned char)(((byKeyIndex << 6) & 0xc0) | 0x20); // 0x20 is ExtIV
*pdwIV |= cpu_to_le16((unsigned short)(pTransmitKey->wTSC15_0));
//Append IV&ExtIV after Mac Header
*pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16);
/* MICHDR0 */
mic_hdr->id = 0x59;
mic_hdr->tx_priority = 0;
memcpy(mic_hdr->mic_addr2, pMACHeader->abyAddr2, ETH_ALEN);
/* ccmp pn big endian order */
mic_hdr->ccmp_pn[0] = (u8)(pTransmitKey->dwTSC47_16 >> 24);
mic_hdr->ccmp_pn[1] = (u8)(pTransmitKey->dwTSC47_16 >> 16);
mic_hdr->ccmp_pn[2] = (u8)(pTransmitKey->dwTSC47_16 >> 8);
mic_hdr->ccmp_pn[3] = (u8)pTransmitKey->dwTSC47_16;
mic_hdr->ccmp_pn[4] = (u8)(pTransmitKey->wTSC15_0 >> 8);
mic_hdr->ccmp_pn[5] = (u8)pTransmitKey->wTSC15_0;
/* MICHDR1 */
mic_hdr->payload_len = cpu_to_be16(wPayloadLen);
if (pDevice->bLongHeader)
mic_hdr->hlen = cpu_to_be16(28);
else
mic_hdr->hlen = cpu_to_be16(22);
memcpy(mic_hdr->addr1, pMACHeader->abyAddr1, ETH_ALEN);
memcpy(mic_hdr->addr2, pMACHeader->abyAddr2, ETH_ALEN);
/* MICHDR2 */
memcpy(mic_hdr->addr3, pMACHeader->abyAddr3, ETH_ALEN);
mic_hdr->frame_control =
cpu_to_le16(pMACHeader->wFrameCtl & 0xc78f);
mic_hdr->seq_ctrl = cpu_to_le16(pMACHeader->wSeqCtl & 0xf);
if (pDevice->bLongHeader)
memcpy(mic_hdr->addr4, pMACHeader->abyAddr4, ETH_ALEN);
}
}
static
void
s_vSWencryption(
struct vnt_private *pDevice,
PSKeyItem pTransmitKey,
unsigned char *pbyPayloadHead,
unsigned short wPayloadSize
)
{
unsigned int cbICVlen = 4;
unsigned long dwICV = 0xFFFFFFFFL;
unsigned long *pdwICV;
if (pTransmitKey == NULL)
return;
if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) {
//=======================================================================
// Append ICV after payload
dwICV = CRCdwGetCrc32Ex(pbyPayloadHead, wPayloadSize, dwICV);//ICV(Payload)
pdwICV = (unsigned long *)(pbyPayloadHead + wPayloadSize);
// finally, we must invert dwCRC to get the correct answer
*pdwICV = cpu_to_le32(~dwICV);
// RC4 encryption
rc4_init(&pDevice->SBox, pDevice->abyPRNG, pTransmitKey->uKeyLength + 3);
rc4_encrypt(&pDevice->SBox, pbyPayloadHead, pbyPayloadHead, wPayloadSize+cbICVlen);
//=======================================================================
} else if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
//=======================================================================
//Append ICV after payload
dwICV = CRCdwGetCrc32Ex(pbyPayloadHead, wPayloadSize, dwICV);//ICV(Payload)
pdwICV = (unsigned long *)(pbyPayloadHead + wPayloadSize);
// finally, we must invert dwCRC to get the correct answer
*pdwICV = cpu_to_le32(~dwICV);
// RC4 encryption
rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
rc4_encrypt(&pDevice->SBox, pbyPayloadHead, pbyPayloadHead, wPayloadSize+cbICVlen);
//=======================================================================
}
}
static __le16 vnt_time_stamp_off(struct vnt_private *priv, u16 rate)
{
return cpu_to_le16(wTimeStampOff[priv->byPreambleType % 2]
[rate % MAX_RATE]);
}
/*byPktType : PK_TYPE_11A 0
PK_TYPE_11B 1
PK_TYPE_11GB 2
PK_TYPE_11GA 3
*/
static
unsigned int
s_uGetTxRsvTime(
struct vnt_private *pDevice,
unsigned char byPktType,
unsigned int cbFrameLength,
unsigned short wRate,
bool bNeedAck
)
{
unsigned int uDataTime, uAckTime;
uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wRate);
if (byPktType == PK_TYPE_11B) //llb,CCK mode
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopCCKBasicRate);
else //11g 2.4G OFDM mode & 11a 5G OFDM mode
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopOFDMBasicRate);
if (bNeedAck)
return uDataTime + pDevice->uSIFS + uAckTime;
else
return uDataTime;
}
static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type,
u32 frame_length, u16 rate, bool need_ack)
{
return cpu_to_le16((u16)s_uGetTxRsvTime(priv, pkt_type,
frame_length, rate, need_ack));
}
//byFreqType: 0=>5GHZ 1=>2.4GHZ
static
__le16
s_uGetRTSCTSRsvTime(
struct vnt_private *pDevice,
unsigned char byRTSRsvType,
unsigned char byPktType,
unsigned int cbFrameLength,
unsigned short wCurrentRate
)
{
unsigned int uRrvTime , uRTSTime, uCTSTime, uAckTime, uDataTime;
uRrvTime = uRTSTime = uCTSTime = uAckTime = uDataTime = 0;
uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wCurrentRate);
if (byRTSRsvType == 0) { //RTSTxRrvTime_bb
uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
} else if (byRTSRsvType == 1) { //RTSTxRrvTime_ba, only in 2.4GHZ
uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
} else if (byRTSRsvType == 2) { //RTSTxRrvTime_aa
uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopOFDMBasicRate);
uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
} else if (byRTSRsvType == 3) { //CTSTxRrvTime_ba, only in 2.4GHZ
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
uRrvTime = uCTSTime + uAckTime + uDataTime + 2*pDevice->uSIFS;
return cpu_to_le16((u16)uRrvTime);
}
//RTSRrvTime
uRrvTime = uRTSTime + uCTSTime + uAckTime + uDataTime + 3*pDevice->uSIFS;
return cpu_to_le16((u16)uRrvTime);
}
//byFreqType 0: 5GHz, 1:2.4Ghz
static
unsigned int
s_uGetDataDuration(
struct vnt_private *pDevice,
unsigned char byDurType,
unsigned int cbFrameLength,
unsigned char byPktType,
unsigned short wRate,
bool bNeedAck,
unsigned int uFragIdx,
unsigned int cbLastFragmentSize,
unsigned int uMACfragNum,
unsigned char byFBOption
)
{
bool bLastFrag = 0;
unsigned int uAckTime = 0, uNextPktTime = 0;
if (uFragIdx == (uMACfragNum-1))
bLastFrag = 1;
switch (byDurType) {
case DATADUR_B: //DATADUR_B
if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
return pDevice->uSIFS + uAckTime;
} else {
return 0;
}
} else {//First Frag or Mid Frag
if (uFragIdx == (uMACfragNum-2))
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
else
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
return pDevice->uSIFS + uAckTime + uNextPktTime;
} else {
return pDevice->uSIFS + uNextPktTime;
}
}
break;
case DATADUR_A: //DATADUR_A
if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
return pDevice->uSIFS + uAckTime;
} else {
return 0;
}
} else {//First Frag or Mid Frag
if (uFragIdx == (uMACfragNum-2))
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
else
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
return pDevice->uSIFS + uAckTime + uNextPktTime;
} else {
return pDevice->uSIFS + uNextPktTime;
}
}
break;
case DATADUR_A_F0: //DATADUR_A_F0
if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
return pDevice->uSIFS + uAckTime;
} else {
return 0;
}
} else { //First Frag or Mid Frag
if (byFBOption == AUTO_FB_0) {
if (wRate < RATE_18M)
wRate = RATE_18M;
else if (wRate > RATE_54M)
wRate = RATE_54M;
if (uFragIdx == (uMACfragNum-2))
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
else
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
} else { // (byFBOption == AUTO_FB_1)
if (wRate < RATE_18M)
wRate = RATE_18M;
else if (wRate > RATE_54M)
wRate = RATE_54M;
if (uFragIdx == (uMACfragNum-2))
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
else
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
}
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
return pDevice->uSIFS + uAckTime + uNextPktTime;
} else {
return pDevice->uSIFS + uNextPktTime;
}
}
break;
case DATADUR_A_F1: //DATADUR_A_F1
if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
return pDevice->uSIFS + uAckTime;
} else {
return 0;
}
} else { //First Frag or Mid Frag
if (byFBOption == AUTO_FB_0) {
if (wRate < RATE_18M)
wRate = RATE_18M;
else if (wRate > RATE_54M)
wRate = RATE_54M;
if (uFragIdx == (uMACfragNum-2))
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
else
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
} else { // (byFBOption == AUTO_FB_1)
if (wRate < RATE_18M)
wRate = RATE_18M;
else if (wRate > RATE_54M)
wRate = RATE_54M;
if (uFragIdx == (uMACfragNum-2))
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
else
uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
}
if (bNeedAck) {
uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
return pDevice->uSIFS + uAckTime + uNextPktTime;
} else {
return pDevice->uSIFS + uNextPktTime;
}
}
break;
default:
break;
}
ASSERT(false);
return 0;
}
//byFreqType: 0=>5GHZ 1=>2.4GHZ
static
__le16
s_uGetRTSCTSDuration(
struct vnt_private *pDevice,
unsigned char byDurType,
unsigned int cbFrameLength,
unsigned char byPktType,
unsigned short wRate,
bool bNeedAck,
unsigned char byFBOption
)
{
unsigned int uCTSTime = 0, uDurTime = 0;
switch (byDurType) {
case RTSDUR_BB: //RTSDuration_bb
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
break;
case RTSDUR_BA: //RTSDuration_ba
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
break;
case RTSDUR_AA: //RTSDuration_aa
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
break;
case CTSDUR_BA: //CTSDuration_ba
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
break;
case RTSDUR_BA_F0: //RTSDuration_ba_f0
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
break;
case RTSDUR_AA_F0: //RTSDuration_aa_f0
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
break;
case RTSDUR_BA_F1: //RTSDuration_ba_f1
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
break;
case RTSDUR_AA_F1: //RTSDuration_aa_f1
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
break;
case CTSDUR_BA_F0: //CTSDuration_ba_f0
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
break;
case CTSDUR_BA_F1: //CTSDuration_ba_f1
if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
break;
default:
break;
}
return cpu_to_le16((u16)uDurTime);
}
static
__le16
s_uFillDataHead(
struct vnt_private *pDevice,
unsigned char byPktType,
void *pTxDataHead,
unsigned int cbFrameLength,
unsigned int uDMAIdx,
bool bNeedAck,
unsigned int uFragIdx,
unsigned int cbLastFragmentSize,
unsigned int uMACfragNum,
unsigned char byFBOption,
unsigned short wCurrentRate
)
{
if (pTxDataHead == NULL)
return 0;
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
if (byFBOption == AUTO_FB_NONE) {
struct vnt_tx_datahead_g *buf = pTxDataHead;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
byPktType, &buf->a);
vnt_get_phy_field(pDevice, cbFrameLength,
pDevice->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
/* Get Duration and TimeStamp */
buf->duration_a = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength,
byPktType, wCurrentRate, bNeedAck, uFragIdx,
cbLastFragmentSize, uMACfragNum,
byFBOption));
buf->duration_b = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength,
PK_TYPE_11B, pDevice->byTopCCKBasicRate,
bNeedAck, uFragIdx, cbLastFragmentSize,
uMACfragNum, byFBOption));
buf->time_stamp_off_a = vnt_time_stamp_off(pDevice, wCurrentRate);
buf->time_stamp_off_b = vnt_time_stamp_off(pDevice, pDevice->byTopCCKBasicRate);
return buf->duration_a;
} else {
/* Auto Fallback */
struct vnt_tx_datahead_g_fb *buf = pTxDataHead;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
byPktType, &buf->a);
vnt_get_phy_field(pDevice, cbFrameLength,
pDevice->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
/* Get Duration and TimeStamp */
buf->duration_a = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
buf->duration_b = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength, PK_TYPE_11B,
pDevice->byTopCCKBasicRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
buf->duration_a_f0 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F0, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
buf->duration_a_f1 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F1, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
buf->time_stamp_off_a = vnt_time_stamp_off(pDevice, wCurrentRate);
buf->time_stamp_off_b = vnt_time_stamp_off(pDevice, pDevice->byTopCCKBasicRate);
return buf->duration_a;
} //if (byFBOption == AUTO_FB_NONE)
} else if (byPktType == PK_TYPE_11A) {
if ((byFBOption != AUTO_FB_NONE)) {
/* Auto Fallback */
struct vnt_tx_datahead_a_fb *buf = pTxDataHead;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
byPktType, &buf->a);
/* Get Duration and TimeStampOff */
buf->duration = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
buf->duration_f0 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F0, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
buf->duration_f1 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F1, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
return buf->duration;
} else {
struct vnt_tx_datahead_ab *buf = pTxDataHead;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
byPktType, &buf->ab);
/* Get Duration and TimeStampOff */
buf->duration = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx,
cbLastFragmentSize, uMACfragNum,
byFBOption));
buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
return buf->duration;
}
} else {
struct vnt_tx_datahead_ab *buf = pTxDataHead;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
byPktType, &buf->ab);
/* Get Duration and TimeStampOff */
buf->duration = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, uFragIdx,
cbLastFragmentSize, uMACfragNum,
byFBOption));
buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
return buf->duration;
}
return 0;
}
static
void
s_vFillRTSHead(
struct vnt_private *pDevice,
unsigned char byPktType,
void *pvRTS,
unsigned int cbFrameLength,
bool bNeedAck,
bool bDisCRC,
PSEthernetHeader psEthHeader,
unsigned short wCurrentRate,
unsigned char byFBOption
)
{
unsigned int uRTSFrameLen = 20;
if (pvRTS == NULL)
return;
if (bDisCRC) {
// When CRCDIS bit is on, H/W forgot to generate FCS for RTS frame,
// in this case we need to decrease its length by 4.
uRTSFrameLen -= 4;
}
// Note: So far RTSHead dosen't appear in ATIM & Beacom DMA, so we don't need to take them into account.
// Otherwise, we need to modify codes for them.
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
if (byFBOption == AUTO_FB_NONE) {
struct vnt_rts_g *buf = pvRTS;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, uRTSFrameLen,
pDevice->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
vnt_get_phy_field(pDevice, uRTSFrameLen,
pDevice->byTopOFDMBasicRate,
byPktType, &buf->a);
/* Get Duration */
buf->duration_bb =
s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
cbFrameLength, PK_TYPE_11B,
pDevice->byTopCCKBasicRate,
bNeedAck, byFBOption);
buf->duration_aa =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->duration_ba =
s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->data.duration = buf->duration_aa;
/* Get RTS Frame body */
buf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_RTS);
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
memcpy(&buf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
} else {
memcpy(&buf->data.ra, pDevice->abyBSSID, ETH_ALEN);
}
if (pDevice->op_mode == NL80211_IFTYPE_AP)
memcpy(&buf->data.ta, pDevice->abyBSSID, ETH_ALEN);
else
memcpy(&buf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
} else {
struct vnt_rts_g_fb *buf = pvRTS;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, uRTSFrameLen,
pDevice->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
vnt_get_phy_field(pDevice, uRTSFrameLen,
pDevice->byTopOFDMBasicRate,
byPktType, &buf->a);
/* Get Duration */
buf->duration_bb =
s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
cbFrameLength, PK_TYPE_11B,
pDevice->byTopCCKBasicRate,
bNeedAck, byFBOption);
buf->duration_aa =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->duration_ba =
s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->rts_duration_ba_f0 =
s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F0,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->rts_duration_aa_f0 =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->rts_duration_ba_f1 =
s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F1,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->rts_duration_aa_f1 =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->data.duration = buf->duration_aa;
/* Get RTS Frame body */
buf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_RTS);
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
memcpy(&buf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
} else {
memcpy(&buf->data.ra, pDevice->abyBSSID, ETH_ALEN);
}
if (pDevice->op_mode == NL80211_IFTYPE_AP)
memcpy(&buf->data.ta, pDevice->abyBSSID, ETH_ALEN);
else
memcpy(&buf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
} // if (byFBOption == AUTO_FB_NONE)
} else if (byPktType == PK_TYPE_11A) {
if (byFBOption == AUTO_FB_NONE) {
struct vnt_rts_ab *buf = pvRTS;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, uRTSFrameLen,
pDevice->byTopOFDMBasicRate,
byPktType, &buf->ab);
/* Get Duration */
buf->duration =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->data.duration = buf->duration;
/* Get RTS Frame body */
buf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_RTS);
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
memcpy(&buf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
} else {
memcpy(&buf->data.ra, pDevice->abyBSSID, ETH_ALEN);
}
if (pDevice->op_mode == NL80211_IFTYPE_AP)
memcpy(&buf->data.ta, pDevice->abyBSSID, ETH_ALEN);
else
memcpy(&buf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
} else {
struct vnt_rts_a_fb *buf = pvRTS;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, uRTSFrameLen,
pDevice->byTopOFDMBasicRate,
byPktType, &buf->a);
/* Get Duration */
buf->duration =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->rts_duration_f0 =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->rts_duration_f1 =
s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
buf->data.duration = buf->duration;
/* Get RTS Frame body */
buf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_RTS);
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
memcpy(&buf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
} else {
memcpy(&buf->data.ra, pDevice->abyBSSID, ETH_ALEN);
}
if (pDevice->op_mode == NL80211_IFTYPE_AP)
memcpy(&buf->data.ta, pDevice->abyBSSID, ETH_ALEN);
else
memcpy(&buf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
}
} else if (byPktType == PK_TYPE_11B) {
struct vnt_rts_ab *buf = pvRTS;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, uRTSFrameLen,
pDevice->byTopCCKBasicRate,
PK_TYPE_11B, &buf->ab);
/* Get Duration */
buf->duration =
s_uGetRTSCTSDuration(pDevice, RTSDUR_BB, cbFrameLength,
byPktType, wCurrentRate, bNeedAck,
byFBOption);
buf->data.duration = buf->duration;
/* Get RTS Frame body */
buf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
memcpy(&buf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
} else {
memcpy(&buf->data.ra, pDevice->abyBSSID, ETH_ALEN);
}
if (pDevice->op_mode == NL80211_IFTYPE_AP)
memcpy(&buf->data.ta, pDevice->abyBSSID, ETH_ALEN);
else
memcpy(&buf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
}
}
static
void
s_vFillCTSHead(
struct vnt_private *pDevice,
unsigned int uDMAIdx,
unsigned char byPktType,
void *pvCTS,
unsigned int cbFrameLength,
bool bNeedAck,
bool bDisCRC,
unsigned short wCurrentRate,
unsigned char byFBOption
)
{
unsigned int uCTSFrameLen = 14;
if (pvCTS == NULL)
return;
if (bDisCRC) {
// When CRCDIS bit is on, H/W forgot to generate FCS for CTS frame,
// in this case we need to decrease its length by 4.
uCTSFrameLen -= 4;
}
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) {
// Auto Fall back
struct vnt_cts_fb *buf = pvCTS;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, uCTSFrameLen,
pDevice->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
buf->duration_ba =
s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
/* Get CTSDuration_ba_f0 */
buf->cts_duration_ba_f0 =
s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F0,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
/* Get CTSDuration_ba_f1 */
buf->cts_duration_ba_f1 =
s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F1,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
/* Get CTS Frame body */
buf->data.duration = buf->duration_ba;
buf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_CTS);
buf->reserved2 = 0x0;
memcpy(&buf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
} else { //if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA)
struct vnt_cts *buf = pvCTS;
/* Get SignalField, ServiceField & Length */
vnt_get_phy_field(pDevice, uCTSFrameLen,
pDevice->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
/* Get CTSDuration_ba */
buf->duration_ba =
s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck,
byFBOption);
/* Get CTS Frame body */
buf->data.duration = buf->duration_ba;
buf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_CTS);
buf->reserved2 = 0x0;
memcpy(&buf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
}
}
}
/*+
*
* Description:
* Generate FIFO control for MAC & Baseband controller
*
* Parameters:
* In:
* pDevice - Pointer to adapter
* pTxDataHead - Transmit Data Buffer
* pTxBufHead - pTxBufHead
* pvRrvTime - pvRrvTime
* pvRTS - RTS Buffer
* pCTS - CTS Buffer
* cbFrameSize - Transmit Data Length (Hdr+Payload+FCS)
* bNeedACK - If need ACK
* uDescIdx - Desc Index
* Out:
* none
*
* Return Value: none
*
-*/
// unsigned int cbFrameSize,//Hdr+Payload+FCS
static
void
s_vGenerateTxParameter(
struct vnt_private *pDevice,
unsigned char byPktType,
void *pTxBufHead,
void *pvRrvTime,
void *pvRTS,
void *pvCTS,
unsigned int cbFrameSize,
bool bNeedACK,
unsigned int uDMAIdx,
PSEthernetHeader psEthHeader,
unsigned short wCurrentRate
)
{
unsigned int cbMACHdLen = WLAN_HDR_ADDR3_LEN; //24
unsigned short wFifoCtl;
bool bDisCRC = false;
unsigned char byFBOption = AUTO_FB_NONE;
PSTxBufHead pFifoHead = (PSTxBufHead)pTxBufHead;
pFifoHead->wReserved = wCurrentRate;
wFifoCtl = pFifoHead->wFIFOCtl;
if (wFifoCtl & FIFOCTL_CRCDIS)
bDisCRC = true;
if (wFifoCtl & FIFOCTL_AUTO_FB_0)
byFBOption = AUTO_FB_0;
else if (wFifoCtl & FIFOCTL_AUTO_FB_1)
byFBOption = AUTO_FB_1;
if (pDevice->bLongHeader)
cbMACHdLen = WLAN_HDR_ADDR3_LEN + 6;
if (!pvRrvTime)
return;
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
if (pvRTS != NULL) { //RTS_need
/* Fill RsvTime */
struct vnt_rrv_time_rts *buf = pvRrvTime;
buf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
buf->rts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 1, byPktType, cbFrameSize, wCurrentRate);
buf->rts_rrv_time_bb = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
} else {//RTS_needless, PCF mode
struct vnt_rrv_time_cts *buf = pvRrvTime;
buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
buf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3, byPktType, cbFrameSize, wCurrentRate);
//Fill CTS
s_vFillCTSHead(pDevice, uDMAIdx, byPktType, pvCTS, cbFrameSize, bNeedACK, bDisCRC, wCurrentRate, byFBOption);
}
} else if (byPktType == PK_TYPE_11A) {
if (pvRTS != NULL) {//RTS_need, non PCF mode
struct vnt_rrv_time_ab *buf = pvRrvTime;
buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
//Fill RTS
s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
} else if (pvRTS == NULL) {//RTS_needless, non PCF mode
struct vnt_rrv_time_ab *buf = pvRrvTime;
buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK);
}
} else if (byPktType == PK_TYPE_11B) {
if ((pvRTS != NULL)) {//RTS_need, non PCF mode
struct vnt_rrv_time_ab *buf = pvRrvTime;
buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
//Fill RTS
s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
} else { //RTS_needless, non PCF mode
struct vnt_rrv_time_ab *buf = pvRrvTime;
buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
}
}
}
static
void
s_vFillFragParameter(
struct vnt_private *pDevice,
unsigned char *pbyBuffer,
unsigned int uTxType,
void *pvtdCurr,
unsigned short wFragType,
unsigned int cbReqCount
)
{
PSTxBufHead pTxBufHead = (PSTxBufHead) pbyBuffer;
if (uTxType == TYPE_SYNCDMA) {
PSTxSyncDesc ptdCurr = (PSTxSyncDesc)pvtdCurr;
//Set FIFOCtl & TimeStamp in TxSyncDesc
ptdCurr->m_wFIFOCtl = pTxBufHead->wFIFOCtl;
ptdCurr->m_wTimeStamp = pTxBufHead->wTimeStamp;
//Set TSR1 & ReqCount in TxDescHead
ptdCurr->m_td1TD1.wReqCount = cpu_to_le16((unsigned short)(cbReqCount));
if (wFragType == FRAGCTL_ENDFRAG) //Last Fragmentation
ptdCurr->m_td1TD1.byTCR |= (TCR_STP | TCR_EDP | EDMSDU);
else
ptdCurr->m_td1TD1.byTCR |= (TCR_STP | TCR_EDP);
} else {
PSTxDesc ptdCurr = (PSTxDesc)pvtdCurr;
//Set TSR1 & ReqCount in TxDescHead
ptdCurr->m_td1TD1.wReqCount = cpu_to_le16((unsigned short)(cbReqCount));
if (wFragType == FRAGCTL_ENDFRAG) //Last Fragmentation
ptdCurr->m_td1TD1.byTCR |= (TCR_STP | TCR_EDP | EDMSDU);
else
ptdCurr->m_td1TD1.byTCR |= (TCR_STP | TCR_EDP);
}
pTxBufHead->wFragCtl |= (unsigned short)wFragType;//0x0001; //0000 0000 0000 0001
}
static unsigned int
s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
unsigned char *pbyTxBufferAddr, unsigned int cbFrameBodySize,
unsigned int uDMAIdx, PSTxDesc pHeadTD,
PSEthernetHeader psEthHeader, unsigned char *pPacket,
bool bNeedEncrypt, PSKeyItem pTransmitKey,
unsigned int uNodeIndex, unsigned int *puMACfragNum)
{
unsigned int cbMACHdLen;
unsigned int cbFrameSize;
unsigned int cbFragmentSize; //Hdr+(IV)+payoad+(MIC)+(ICV)+FCS
unsigned int cbFragPayloadSize;
unsigned int cbLastFragmentSize; //Hdr+(IV)+payoad+(MIC)+(ICV)+FCS
unsigned int cbLastFragPayloadSize;
unsigned int uFragIdx;
unsigned char *pbyPayloadHead;
unsigned char *pbyIVHead;
unsigned char *pbyMacHdr;
unsigned short wFragType; //00:Non-Frag, 01:Start, 10:Mid, 11:Last
__le16 uDuration;
unsigned char *pbyBuffer;
unsigned int cbIVlen = 0;
unsigned int cbICVlen = 0;
unsigned int cbMIClen = 0;
unsigned int cbFCSlen = 4;
unsigned int cb802_1_H_len = 0;
unsigned int uLength = 0;
unsigned int uTmpLen = 0;
unsigned int cbMICHDR = 0;
u32 dwMICKey0, dwMICKey1;
u32 dwMIC_Priority;
u32 *pdwMIC_L;
u32 *pdwMIC_R;
u32 dwSafeMIC_L, dwSafeMIC_R; /* Fix "Last Frag Size" < "MIC length". */
bool bMIC2Frag = false;
unsigned int uMICFragLen = 0;
unsigned int uMACfragNum = 1;
unsigned int uPadding = 0;
unsigned int cbReqCount = 0;
bool bNeedACK;
bool bRTS;
bool bIsAdhoc;
unsigned char *pbyType;
PSTxDesc ptdCurr;
PSTxBufHead psTxBufHd = (PSTxBufHead) pbyTxBufferAddr;
unsigned int cbHeaderLength = 0;
void *pvRrvTime;
struct vnt_mic_hdr *pMICHDR;
void *pvRTS;
void *pvCTS;
void *pvTxDataHd;
unsigned short wTxBufSize; // FFinfo size
unsigned int uTotalCopyLength = 0;
unsigned char byFBOption = AUTO_FB_NONE;
bool bIsWEP256 = false;
PSMgmtObject pMgmt = pDevice->pMgmt;
pvRrvTime = pMICHDR = pvRTS = pvCTS = pvTxDataHd = NULL;
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
if (is_multicast_ether_addr(&(psEthHeader->abyDstAddr[0])))
bNeedACK = false;
else
bNeedACK = true;
bIsAdhoc = true;
} else {
// MSDUs in Infra mode always need ACK
bNeedACK = true;
bIsAdhoc = false;
}
if (pDevice->bLongHeader)
cbMACHdLen = WLAN_HDR_ADDR3_LEN + 6;
else
cbMACHdLen = WLAN_HDR_ADDR3_LEN;
if ((bNeedEncrypt == true) && (pTransmitKey != NULL)) {
if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) {
cbIVlen = 4;
cbICVlen = 4;
if (pTransmitKey->uKeyLength == WLAN_WEP232_KEYLEN)
bIsWEP256 = true;
}
if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
cbIVlen = 8;//IV+ExtIV
cbMIClen = 8;
cbICVlen = 4;
}
if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) {
cbIVlen = 8;//RSN Header
cbICVlen = 8;//MIC
cbMICHDR = sizeof(struct vnt_mic_hdr);
}
if (pDevice->byLocalID > REV_ID_VT3253_A1) {
//MAC Header should be padding 0 to DW alignment.
uPadding = 4 - (cbMACHdLen%4);
uPadding %= 4;
}
}
cbFrameSize = cbMACHdLen + cbIVlen + (cbFrameBodySize + cbMIClen) + cbICVlen + cbFCSlen;
if ((bNeedACK == false) ||
(cbFrameSize < pDevice->wRTSThreshold) ||
((cbFrameSize >= pDevice->wFragmentationThreshold) && (pDevice->wFragmentationThreshold <= pDevice->wRTSThreshold))
) {
bRTS = false;
} else {
bRTS = true;
psTxBufHd->wFIFOCtl |= (FIFOCTL_RTS | FIFOCTL_LRETRY);
}
//
// Use for AUTO FALL BACK
//
if (psTxBufHd->wFIFOCtl & FIFOCTL_AUTO_FB_0)
byFBOption = AUTO_FB_0;
else if (psTxBufHd->wFIFOCtl & FIFOCTL_AUTO_FB_1)
byFBOption = AUTO_FB_1;
//////////////////////////////////////////////////////
//Set RrvTime/RTS/CTS Buffer
wTxBufSize = sizeof(STxBufHead);
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
if (byFBOption == AUTO_FB_NONE) {
if (bRTS == true) {//RTS_need
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
pvCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
cbMICHDR + sizeof(struct vnt_rts_g));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
cbMICHDR + sizeof(struct vnt_rts_g) +
sizeof(struct vnt_tx_datahead_g);
} else { //RTS_needless
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
pvRTS = NULL;
pvCTS = (void *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_cts) + cbMICHDR + sizeof(struct vnt_cts));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
cbMICHDR + sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
}
} else {
// Auto Fall Back
if (bRTS == true) {//RTS_need
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
pvRTS = (void *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
pvCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
cbMICHDR + sizeof(struct vnt_rts_g_fb));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
cbMICHDR + sizeof(struct vnt_rts_g_fb) + sizeof(struct vnt_tx_datahead_g_fb);
} else { //RTS_needless
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
pvRTS = NULL;
pvCTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
cbMICHDR + sizeof(struct vnt_cts_fb));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
cbMICHDR + sizeof(struct vnt_cts_fb) + sizeof(struct vnt_tx_datahead_g_fb);
}
} // Auto Fall Back
} else {//802.11a/b packet
if (byFBOption == AUTO_FB_NONE) {
if (bRTS == true) {
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
pvCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_ab));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_rts_ab) + sizeof(struct vnt_tx_datahead_ab);
} else { //RTS_needless, need MICHDR
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
pvRTS = NULL;
pvCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_tx_datahead_ab);
}
} else {
// Auto Fall Back
if (bRTS == true) {//RTS_need
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
pvCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_a_fb));
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_rts_a_fb) + sizeof(struct vnt_tx_datahead_a_fb);
} else { //RTS_needless
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
pvRTS = NULL;
pvCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_tx_datahead_a_fb);
}
} // Auto Fall Back
}
memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderLength - wTxBufSize));
//////////////////////////////////////////////////////////////////
if ((bNeedEncrypt == true) && (pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) {
if (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[16]);
dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[20]);
} else if ((pTransmitKey->dwKeyIndex & AUTHENTICATOR_KEY) != 0) {
dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[16]);
dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[20]);
} else {
dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[24]);
dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[28]);
}
// DO Software Michael
MIC_vInit(dwMICKey0, dwMICKey1);
MIC_vAppend((unsigned char *)&(psEthHeader->abyDstAddr[0]), 12);
dwMIC_Priority = 0;
MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
pr_debug("MIC KEY: %X, %X\n", dwMICKey0, dwMICKey1);
}
///////////////////////////////////////////////////////////////////
pbyMacHdr = (unsigned char *)(pbyTxBufferAddr + cbHeaderLength);
pbyPayloadHead = (unsigned char *)(pbyMacHdr + cbMACHdLen + uPadding + cbIVlen);
pbyIVHead = (unsigned char *)(pbyMacHdr + cbMACHdLen + uPadding);
if ((cbFrameSize > pDevice->wFragmentationThreshold) && (bNeedACK == true) && (bIsWEP256 == false)) {
// Fragmentation
// FragThreshold = Fragment size(Hdr+(IV)+fragment payload+(MIC)+(ICV)+FCS)
cbFragmentSize = pDevice->wFragmentationThreshold;
cbFragPayloadSize = cbFragmentSize - cbMACHdLen - cbIVlen - cbICVlen - cbFCSlen;
//FragNum = (FrameSize-(Hdr+FCS))/(Fragment Size -(Hrd+FCS)))
uMACfragNum = (unsigned short) ((cbFrameBodySize + cbMIClen) / cbFragPayloadSize);
cbLastFragPayloadSize = (cbFrameBodySize + cbMIClen) % cbFragPayloadSize;
if (cbLastFragPayloadSize == 0)
cbLastFragPayloadSize = cbFragPayloadSize;
else
uMACfragNum++;
//[Hdr+(IV)+last fragment payload+(MIC)+(ICV)+FCS]
cbLastFragmentSize = cbMACHdLen + cbLastFragPayloadSize + cbIVlen + cbICVlen + cbFCSlen;
for (uFragIdx = 0; uFragIdx < uMACfragNum; uFragIdx++) {
if (uFragIdx == 0) {
//=========================
// Start Fragmentation
//=========================
pr_debug("Start Fragmentation...\n");
wFragType = FRAGCTL_STAFRAG;
//Fill FIFO,RrvTime,RTS,and CTS
s_vGenerateTxParameter(pDevice, byPktType, (void *)psTxBufHd, pvRrvTime, pvRTS, pvCTS,
cbFragmentSize, bNeedACK, uDMAIdx, psEthHeader, pDevice->wCurrentRate);
//Fill DataHead
uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFragmentSize, uDMAIdx, bNeedACK,
uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption, pDevice->wCurrentRate);
// Generate TX MAC Header
vGenerateMACHeader(pDevice, pbyMacHdr, uDuration, psEthHeader, bNeedEncrypt,
wFragType, uDMAIdx, uFragIdx);
if (bNeedEncrypt == true) {
//Fill TXKEY
s_vFillTxKey(pDevice, (unsigned char *)(psTxBufHd->adwTxKey), pbyIVHead, pTransmitKey,
pbyMacHdr, (unsigned short)cbFragPayloadSize, (unsigned char *)pMICHDR);
//Fill IV(ExtIV,RSNHDR)
if (pDevice->bEnableHostWEP) {
pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16 = pTransmitKey->dwTSC47_16;
pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0 = pTransmitKey->wTSC15_0;
}
}
// 802.1H
if (ntohs(psEthHeader->wType) > ETH_DATA_LEN) {
if ((psEthHeader->wType == TYPE_PKT_IPX) ||
(psEthHeader->wType == cpu_to_le16(0xF380))) {
memcpy((unsigned char *)(pbyPayloadHead), &pDevice->abySNAP_Bridgetunnel[0], 6);
} else {
memcpy((unsigned char *)(pbyPayloadHead), &pDevice->abySNAP_RFC1042[0], 6);
}
pbyType = (unsigned char *)(pbyPayloadHead + 6);
memcpy(pbyType, &(psEthHeader->wType), sizeof(unsigned short));
cb802_1_H_len = 8;
}
cbReqCount = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen + cbFragPayloadSize;
//---------------------------
// S/W or H/W Encryption
//---------------------------
pbyBuffer = (unsigned char *)pHeadTD->pTDInfo->buf;
uLength = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen + cb802_1_H_len;
//copy TxBufferHeader + MacHeader to desc
memcpy(pbyBuffer, (void *)psTxBufHd, uLength);
// Copy the Packet into a tx Buffer
memcpy((pbyBuffer + uLength), (pPacket + 14), (cbFragPayloadSize - cb802_1_H_len));
uTotalCopyLength += cbFragPayloadSize - cb802_1_H_len;
if ((bNeedEncrypt == true) && (pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) {
pr_debug("Start MIC: %d\n",
cbFragPayloadSize);
MIC_vAppend((pbyBuffer + uLength - cb802_1_H_len), cbFragPayloadSize);
}
//---------------------------
// S/W Encryption
//---------------------------
if ((pDevice->byLocalID <= REV_ID_VT3253_A1)) {
if (bNeedEncrypt) {
s_vSWencryption(pDevice, pTransmitKey, (pbyBuffer + uLength - cb802_1_H_len), (unsigned short)cbFragPayloadSize);
cbReqCount += cbICVlen;
}
}
ptdCurr = (PSTxDesc)pHeadTD;
//--------------------
//1.Set TSR1 & ReqCount in TxDescHead
//2.Set FragCtl in TxBufferHead
//3.Set Frame Control
//4.Set Sequence Control
//5.Get S/W generate FCS
//--------------------
s_vFillFragParameter(pDevice, pbyBuffer, uDMAIdx, (void *)ptdCurr, wFragType, cbReqCount);
ptdCurr->pTDInfo->dwReqCount = cbReqCount - uPadding;
ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma;
ptdCurr->buff_addr = cpu_to_le32(ptdCurr->pTDInfo->skb_dma);
pDevice->iTDUsed[uDMAIdx]++;
pHeadTD = ptdCurr->next;
} else if (uFragIdx == (uMACfragNum-1)) {
//=========================
// Last Fragmentation
//=========================
pr_debug("Last Fragmentation...\n");
wFragType = FRAGCTL_ENDFRAG;
//Fill FIFO,RrvTime,RTS,and CTS
s_vGenerateTxParameter(pDevice, byPktType, (void *)psTxBufHd, pvRrvTime, pvRTS, pvCTS,
cbLastFragmentSize, bNeedACK, uDMAIdx, psEthHeader, pDevice->wCurrentRate);
//Fill DataHead
uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbLastFragmentSize, uDMAIdx, bNeedACK,
uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption, pDevice->wCurrentRate);
// Generate TX MAC Header
vGenerateMACHeader(pDevice, pbyMacHdr, uDuration, psEthHeader, bNeedEncrypt,
wFragType, uDMAIdx, uFragIdx);
if (bNeedEncrypt == true) {
//Fill TXKEY
s_vFillTxKey(pDevice, (unsigned char *)(psTxBufHd->adwTxKey), pbyIVHead, pTransmitKey,
pbyMacHdr, (unsigned short)cbLastFragPayloadSize, (unsigned char *)pMICHDR);
if (pDevice->bEnableHostWEP) {
pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16 = pTransmitKey->dwTSC47_16;
pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0 = pTransmitKey->wTSC15_0;
}
}
cbReqCount = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen + cbLastFragPayloadSize;
//---------------------------
// S/W or H/W Encryption
//---------------------------
pbyBuffer = (unsigned char *)pHeadTD->pTDInfo->buf;
uLength = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen;
//copy TxBufferHeader + MacHeader to desc
memcpy(pbyBuffer, (void *)psTxBufHd, uLength);
// Copy the Packet into a tx Buffer
if (bMIC2Frag == false) {
memcpy((pbyBuffer + uLength),
(pPacket + 14 + uTotalCopyLength),
(cbLastFragPayloadSize - cbMIClen)
);
//TODO check uTmpLen !
uTmpLen = cbLastFragPayloadSize - cbMIClen;
}
if ((bNeedEncrypt == true) && (pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) {
pr_debug("LAST: uMICFragLen:%d, cbLastFragPayloadSize:%d, uTmpLen:%d\n",
uMICFragLen,
cbLastFragPayloadSize,
uTmpLen);
if (bMIC2Frag == false) {
if (uTmpLen != 0)
MIC_vAppend((pbyBuffer + uLength), uTmpLen);
pdwMIC_L = (u32 *)(pbyBuffer + uLength + uTmpLen);
pdwMIC_R = (u32 *)(pbyBuffer + uLength + uTmpLen + 4);
MIC_vGetMIC(pdwMIC_L, pdwMIC_R);
pr_debug("Last MIC:%X, %X\n",
*pdwMIC_L, *pdwMIC_R);
} else {
if (uMICFragLen >= 4) {
memcpy((pbyBuffer + uLength), ((unsigned char *)&dwSafeMIC_R + (uMICFragLen - 4)),
(cbMIClen - uMICFragLen));
pr_debug("LAST: uMICFragLen >= 4: %X, %d\n",
*(unsigned char *)((unsigned char *)&dwSafeMIC_R + (uMICFragLen - 4)),
(cbMIClen - uMICFragLen));
} else {
memcpy((pbyBuffer + uLength), ((unsigned char *)&dwSafeMIC_L + uMICFragLen),
(4 - uMICFragLen));
memcpy((pbyBuffer + uLength + (4 - uMICFragLen)), &dwSafeMIC_R, 4);
pr_debug("LAST: uMICFragLen < 4: %X, %d\n",
*(unsigned char *)((unsigned char *)&dwSafeMIC_R + uMICFragLen - 4),
(cbMIClen - uMICFragLen));
}
}
MIC_vUnInit();
} else {
ASSERT(uTmpLen == (cbLastFragPayloadSize - cbMIClen));
}
//---------------------------
// S/W Encryption
//---------------------------
if ((pDevice->byLocalID <= REV_ID_VT3253_A1)) {
if (bNeedEncrypt) {
s_vSWencryption(pDevice, pTransmitKey, (pbyBuffer + uLength), (unsigned short)cbLastFragPayloadSize);
cbReqCount += cbICVlen;
}
}
ptdCurr = (PSTxDesc)pHeadTD;
//--------------------
//1.Set TSR1 & ReqCount in TxDescHead
//2.Set FragCtl in TxBufferHead
//3.Set Frame Control
//4.Set Sequence Control
//5.Get S/W generate FCS
//--------------------
s_vFillFragParameter(pDevice, pbyBuffer, uDMAIdx, (void *)ptdCurr, wFragType, cbReqCount);
ptdCurr->pTDInfo->dwReqCount = cbReqCount - uPadding;
ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma;
ptdCurr->buff_addr = cpu_to_le32(ptdCurr->pTDInfo->skb_dma);
pDevice->iTDUsed[uDMAIdx]++;
pHeadTD = ptdCurr->next;
} else {
//=========================
// Middle Fragmentation
//=========================
pr_debug("Middle Fragmentation...\n");
wFragType = FRAGCTL_MIDFRAG;
//Fill FIFO,RrvTime,RTS,and CTS
s_vGenerateTxParameter(pDevice, byPktType, (void *)psTxBufHd, pvRrvTime, pvRTS, pvCTS,
cbFragmentSize, bNeedACK, uDMAIdx, psEthHeader, pDevice->wCurrentRate);
//Fill DataHead
uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFragmentSize, uDMAIdx, bNeedACK,
uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption, pDevice->wCurrentRate);
// Generate TX MAC Header
vGenerateMACHeader(pDevice, pbyMacHdr, uDuration, psEthHeader, bNeedEncrypt,
wFragType, uDMAIdx, uFragIdx);
if (bNeedEncrypt == true) {
//Fill TXKEY
s_vFillTxKey(pDevice, (unsigned char *)(psTxBufHd->adwTxKey), pbyIVHead, pTransmitKey,
pbyMacHdr, (unsigned short)cbFragPayloadSize, (unsigned char *)pMICHDR);
if (pDevice->bEnableHostWEP) {
pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16 = pTransmitKey->dwTSC47_16;
pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0 = pTransmitKey->wTSC15_0;
}
}
cbReqCount = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen + cbFragPayloadSize;
//---------------------------
// S/W or H/W Encryption
//---------------------------
pbyBuffer = (unsigned char *)pHeadTD->pTDInfo->buf;
uLength = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen;
//copy TxBufferHeader + MacHeader to desc
memcpy(pbyBuffer, (void *)psTxBufHd, uLength);
// Copy the Packet into a tx Buffer
memcpy((pbyBuffer + uLength),
(pPacket + 14 + uTotalCopyLength),
cbFragPayloadSize
);
uTmpLen = cbFragPayloadSize;
uTotalCopyLength += uTmpLen;
if ((bNeedEncrypt == true) && (pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) {
MIC_vAppend((pbyBuffer + uLength), uTmpLen);
if (uTmpLen < cbFragPayloadSize) {
bMIC2Frag = true;
uMICFragLen = cbFragPayloadSize - uTmpLen;
ASSERT(uMICFragLen < cbMIClen);
pdwMIC_L = (u32 *)(pbyBuffer + uLength + uTmpLen);
pdwMIC_R = (u32 *)(pbyBuffer + uLength + uTmpLen + 4);
MIC_vGetMIC(pdwMIC_L, pdwMIC_R);
dwSafeMIC_L = *pdwMIC_L;
dwSafeMIC_R = *pdwMIC_R;
pr_debug("MIDDLE: uMICFragLen:%d, cbFragPayloadSize:%d, uTmpLen:%d\n",
uMICFragLen,
cbFragPayloadSize,
uTmpLen);
pr_debug("Fill MIC in Middle frag [%d]\n",
uMICFragLen);
pr_debug("Get MIC:%X, %X\n",
*pdwMIC_L, *pdwMIC_R);
}
pr_debug("Middle frag len: %d\n",
uTmpLen);
} else {
ASSERT(uTmpLen == (cbFragPayloadSize));
}
if ((pDevice->byLocalID <= REV_ID_VT3253_A1)) {
if (bNeedEncrypt) {
s_vSWencryption(pDevice, pTransmitKey, (pbyBuffer + uLength), (unsigned short)cbFragPayloadSize);
cbReqCount += cbICVlen;
}
}
ptdCurr = (PSTxDesc)pHeadTD;
//--------------------
//1.Set TSR1 & ReqCount in TxDescHead
//2.Set FragCtl in TxBufferHead
//3.Set Frame Control
//4.Set Sequence Control
//5.Get S/W generate FCS
//--------------------
s_vFillFragParameter(pDevice, pbyBuffer, uDMAIdx, (void *)ptdCurr, wFragType, cbReqCount);
ptdCurr->pTDInfo->dwReqCount = cbReqCount - uPadding;
ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma;
ptdCurr->buff_addr = cpu_to_le32(ptdCurr->pTDInfo->skb_dma);
pDevice->iTDUsed[uDMAIdx]++;
pHeadTD = ptdCurr->next;
}
} // for (uMACfragNum)
} else {
//=========================
// No Fragmentation
//=========================
wFragType = FRAGCTL_NONFRAG;
//Set FragCtl in TxBufferHead
psTxBufHd->wFragCtl |= (unsigned short)wFragType;
//Fill FIFO,RrvTime,RTS,and CTS
s_vGenerateTxParameter(pDevice, byPktType, (void *)psTxBufHd, pvRrvTime, pvRTS, pvCTS,
cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, pDevice->wCurrentRate);
//Fill DataHead
uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
0, 0, uMACfragNum, byFBOption, pDevice->wCurrentRate);
// Generate TX MAC Header
vGenerateMACHeader(pDevice, pbyMacHdr, uDuration, psEthHeader, bNeedEncrypt,
wFragType, uDMAIdx, 0);
if (bNeedEncrypt == true) {
//Fill TXKEY
s_vFillTxKey(pDevice, (unsigned char *)(psTxBufHd->adwTxKey), pbyIVHead, pTransmitKey,
pbyMacHdr, (unsigned short)cbFrameBodySize, (unsigned char *)pMICHDR);
if (pDevice->bEnableHostWEP) {
pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16 = pTransmitKey->dwTSC47_16;
pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0 = pTransmitKey->wTSC15_0;
}
}
// 802.1H
if (ntohs(psEthHeader->wType) > ETH_DATA_LEN) {
if ((psEthHeader->wType == TYPE_PKT_IPX) ||
(psEthHeader->wType == cpu_to_le16(0xF380))) {
memcpy((unsigned char *)(pbyPayloadHead), &pDevice->abySNAP_Bridgetunnel[0], 6);
} else {
memcpy((unsigned char *)(pbyPayloadHead), &pDevice->abySNAP_RFC1042[0], 6);
}
pbyType = (unsigned char *)(pbyPayloadHead + 6);
memcpy(pbyType, &(psEthHeader->wType), sizeof(unsigned short));
cb802_1_H_len = 8;
}
cbReqCount = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen + (cbFrameBodySize + cbMIClen);
//---------------------------
// S/W or H/W Encryption
//---------------------------
pbyBuffer = (unsigned char *)pHeadTD->pTDInfo->buf;
uLength = cbHeaderLength + cbMACHdLen + uPadding + cbIVlen + cb802_1_H_len;
//copy TxBufferHeader + MacHeader to desc
memcpy(pbyBuffer, (void *)psTxBufHd, uLength);
// Copy the Packet into a tx Buffer
memcpy((pbyBuffer + uLength),
(pPacket + 14),
cbFrameBodySize - cb802_1_H_len
);
if ((bNeedEncrypt == true) && (pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) {
pr_debug("Length:%d, %d\n",
cbFrameBodySize - cb802_1_H_len, uLength);
MIC_vAppend((pbyBuffer + uLength - cb802_1_H_len), cbFrameBodySize);
pdwMIC_L = (u32 *)(pbyBuffer + uLength - cb802_1_H_len + cbFrameBodySize);
pdwMIC_R = (u32 *)(pbyBuffer + uLength - cb802_1_H_len + cbFrameBodySize + 4);
MIC_vGetMIC(pdwMIC_L, pdwMIC_R);
MIC_vUnInit();
if (pDevice->bTxMICFail == true) {
*pdwMIC_L = 0;
*pdwMIC_R = 0;
pDevice->bTxMICFail = false;
}
pr_debug("uLength: %d, %d\n", uLength, cbFrameBodySize);
pr_debug("cbReqCount:%d, %d, %d, %d\n",
cbReqCount, cbHeaderLength, uPadding, cbIVlen);
pr_debug("MIC:%x, %x\n", *pdwMIC_L, *pdwMIC_R);
}
if ((pDevice->byLocalID <= REV_ID_VT3253_A1)) {
if (bNeedEncrypt) {
s_vSWencryption(pDevice, pTransmitKey, (pbyBuffer + uLength - cb802_1_H_len),
(unsigned short)(cbFrameBodySize + cbMIClen));
cbReqCount += cbICVlen;
}
}
ptdCurr = (PSTxDesc)pHeadTD;
ptdCurr->pTDInfo->dwReqCount = cbReqCount - uPadding;
ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma;
ptdCurr->buff_addr = cpu_to_le32(ptdCurr->pTDInfo->skb_dma);
//Set TSR1 & ReqCount in TxDescHead
ptdCurr->m_td1TD1.byTCR |= (TCR_STP | TCR_EDP | EDMSDU);
ptdCurr->m_td1TD1.wReqCount = cpu_to_le16((unsigned short)(cbReqCount));
pDevice->iTDUsed[uDMAIdx]++;
}
*puMACfragNum = uMACfragNum;
return cbHeaderLength;
}
void
vGenerateFIFOHeader(struct vnt_private *pDevice, unsigned char byPktType,
unsigned char *pbyTxBufferAddr, bool bNeedEncrypt,
unsigned int cbPayloadSize, unsigned int uDMAIdx,
PSTxDesc pHeadTD, PSEthernetHeader psEthHeader, unsigned char *pPacket,
PSKeyItem pTransmitKey, unsigned int uNodeIndex, unsigned int *puMACfragNum,
unsigned int *pcbHeaderSize)
{
unsigned int wTxBufSize; // FFinfo size
bool bNeedACK;
bool bIsAdhoc;
unsigned short cbMacHdLen;
PSTxBufHead pTxBufHead = (PSTxBufHead) pbyTxBufferAddr;
wTxBufSize = sizeof(STxBufHead);
memset(pTxBufHead, 0, wTxBufSize);
//Set FIFOCTL_NEEDACK
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
if (is_multicast_ether_addr(&(psEthHeader->abyDstAddr[0]))) {
bNeedACK = false;
pTxBufHead->wFIFOCtl = pTxBufHead->wFIFOCtl & (~FIFOCTL_NEEDACK);
} else {
bNeedACK = true;
pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK;
}
bIsAdhoc = true;
} else {
// MSDUs in Infra mode always need ACK
bNeedACK = true;
pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK;
bIsAdhoc = false;
}
pTxBufHead->wFIFOCtl |= FIFOCTL_TMOEN;
pTxBufHead->wTimeStamp = cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us);
//Set FIFOCTL_LHEAD
if (pDevice->bLongHeader)
pTxBufHead->wFIFOCtl |= FIFOCTL_LHEAD;
//Set FIFOCTL_GENINT
pTxBufHead->wFIFOCtl |= FIFOCTL_GENINT;
//Set FIFOCTL_ISDMA0
if (TYPE_TXDMA0 == uDMAIdx)
pTxBufHead->wFIFOCtl |= FIFOCTL_ISDMA0;
//Set FRAGCTL_MACHDCNT
if (pDevice->bLongHeader)
cbMacHdLen = WLAN_HDR_ADDR3_LEN + 6;
else
cbMacHdLen = WLAN_HDR_ADDR3_LEN;
pTxBufHead->wFragCtl |= cpu_to_le16((unsigned short)(cbMacHdLen << 10));
//Set packet type
if (byPktType == PK_TYPE_11A) //0000 0000 0000 0000
;
else if (byPktType == PK_TYPE_11B) //0000 0001 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11B;
else if (byPktType == PK_TYPE_11GB) //0000 0010 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GB;
else if (byPktType == PK_TYPE_11GA) //0000 0011 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GA;
//Set FIFOCTL_GrpAckPolicy
if (pDevice->bGrpAckPolicy == true) //0000 0100 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK;
//Set Auto Fallback Ctl
if (pDevice->wCurrentRate >= RATE_18M) {
if (pDevice->byAutoFBCtrl == AUTO_FB_0)
pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_0;
else if (pDevice->byAutoFBCtrl == AUTO_FB_1)
pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_1;
}
//Set FRAGCTL_WEPTYP
pDevice->bAES = false;
//Set FRAGCTL_WEPTYP
if (pDevice->byLocalID > REV_ID_VT3253_A1) {
if ((bNeedEncrypt) && (pTransmitKey != NULL)) { //WEP enabled
if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
pTxBufHead->wFragCtl |= FRAGCTL_TKIP;
} else if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) { //WEP40 or WEP104
if (pTransmitKey->uKeyLength != WLAN_WEP232_KEYLEN)
pTxBufHead->wFragCtl |= FRAGCTL_LEGACY;
} else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) { //CCMP
pTxBufHead->wFragCtl |= FRAGCTL_AES;
}
}
}
RFbSetPower(pDevice, pDevice->wCurrentRate, pDevice->byCurrentCh);
pTxBufHead->byTxPower = pDevice->byCurPwr;
*pcbHeaderSize = s_cbFillTxBufHead(pDevice, byPktType, pbyTxBufferAddr, cbPayloadSize,
uDMAIdx, pHeadTD, psEthHeader, pPacket, bNeedEncrypt,
pTransmitKey, uNodeIndex, puMACfragNum);
}
/*+
*
* Description:
* Translate 802.3 to 802.11 header
*
* Parameters:
* In:
* pDevice - Pointer to adapter
* dwTxBufferAddr - Transmit Buffer
* pPacket - Packet from upper layer
* cbPacketSize - Transmit Data Length
* Out:
* pcbHeadSize - Header size of MAC&Baseband control and 802.11 Header
* pcbAppendPayload - size of append payload for 802.1H translation
*
* Return Value: none
*
-*/
void
vGenerateMACHeader(
struct vnt_private *pDevice,
unsigned char *pbyBufferAddr,
__le16 wDuration,
PSEthernetHeader psEthHeader,
bool bNeedEncrypt,
unsigned short wFragType,
unsigned int uDMAIdx,
unsigned int uFragIdx
)
{
PS802_11Header pMACHeader = (PS802_11Header)pbyBufferAddr;
memset(pMACHeader, 0, (sizeof(S802_11Header)));
if (uDMAIdx == TYPE_ATIMDMA)
pMACHeader->wFrameCtl = TYPE_802_11_ATIM;
else
pMACHeader->wFrameCtl = TYPE_802_11_DATA;
if (pDevice->op_mode == NL80211_IFTYPE_AP) {
memcpy(&(pMACHeader->abyAddr1[0]), &(psEthHeader->abyDstAddr[0]), ETH_ALEN);
memcpy(&(pMACHeader->abyAddr2[0]), &(pDevice->abyBSSID[0]), ETH_ALEN);
memcpy(&(pMACHeader->abyAddr3[0]), &(psEthHeader->abySrcAddr[0]), ETH_ALEN);
pMACHeader->wFrameCtl |= FC_FROMDS;
} else {
if (pDevice->op_mode == NL80211_IFTYPE_ADHOC) {
memcpy(&(pMACHeader->abyAddr1[0]), &(psEthHeader->abyDstAddr[0]), ETH_ALEN);
memcpy(&(pMACHeader->abyAddr2[0]), &(psEthHeader->abySrcAddr[0]), ETH_ALEN);
memcpy(&(pMACHeader->abyAddr3[0]), &(pDevice->abyBSSID[0]), ETH_ALEN);
} else {
memcpy(&(pMACHeader->abyAddr3[0]), &(psEthHeader->abyDstAddr[0]), ETH_ALEN);
memcpy(&(pMACHeader->abyAddr2[0]), &(psEthHeader->abySrcAddr[0]), ETH_ALEN);
memcpy(&(pMACHeader->abyAddr1[0]), &(pDevice->abyBSSID[0]), ETH_ALEN);
pMACHeader->wFrameCtl |= FC_TODS;
}
}
if (bNeedEncrypt)
pMACHeader->wFrameCtl |= cpu_to_le16((unsigned short)WLAN_SET_FC_ISWEP(1));
pMACHeader->wDurationID = le16_to_cpu(wDuration);
if (pDevice->bLongHeader) {
PWLAN_80211HDR_A4 pMACA4Header = (PWLAN_80211HDR_A4) pbyBufferAddr;
pMACHeader->wFrameCtl |= (FC_TODS | FC_FROMDS);
memcpy(pMACA4Header->abyAddr4, pDevice->abyBSSID, WLAN_ADDR_LEN);
}
pMACHeader->wSeqCtl = cpu_to_le16(pDevice->wSeqCounter << 4);
//Set FragNumber in Sequence Control
pMACHeader->wSeqCtl |= cpu_to_le16((unsigned short)uFragIdx);
if ((wFragType == FRAGCTL_ENDFRAG) || (wFragType == FRAGCTL_NONFRAG)) {
pDevice->wSeqCounter++;
if (pDevice->wSeqCounter > 0x0fff)
pDevice->wSeqCounter = 0;
}
if ((wFragType == FRAGCTL_STAFRAG) || (wFragType == FRAGCTL_MIDFRAG)) //StartFrag or MidFrag
pMACHeader->wFrameCtl |= FC_MOREFRAG;
}
CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice, PSTxMgmtPacket pPacket)
{
PSTxDesc pFrstTD;
unsigned char byPktType;
unsigned char *pbyTxBufferAddr;
void *pvRTS;
struct vnt_cts *pCTS;
void *pvTxDataHd;
unsigned int uDuration;
unsigned int cbReqCount;
PS802_11Header pMACHeader;
unsigned int cbHeaderSize;
unsigned int cbFrameBodySize;
bool bNeedACK;
bool bIsPSPOLL = false;
PSTxBufHead pTxBufHead;
unsigned int cbFrameSize;
unsigned int cbIVlen = 0;
unsigned int cbICVlen = 0;
unsigned int cbMIClen = 0;
unsigned int cbFCSlen = 4;
unsigned int uPadding = 0;
unsigned short wTxBufSize;
unsigned int cbMacHdLen;
SEthernetHeader sEthHeader;
void *pvRrvTime;
void *pMICHDR;
PSMgmtObject pMgmt = pDevice->pMgmt;
unsigned short wCurrentRate = RATE_1M;
if (AVAIL_TD(pDevice, TYPE_TXDMA0) <= 0)
return CMD_STATUS_RESOURCES;
pFrstTD = pDevice->apCurrTD[TYPE_TXDMA0];
pbyTxBufferAddr = (unsigned char *)pFrstTD->pTDInfo->buf;
cbFrameBodySize = pPacket->cbPayloadLen;
pTxBufHead = (PSTxBufHead) pbyTxBufferAddr;
wTxBufSize = sizeof(STxBufHead);
memset(pTxBufHead, 0, wTxBufSize);
if (pDevice->eCurrentPHYType == PHY_TYPE_11A) {
wCurrentRate = RATE_6M;
byPktType = PK_TYPE_11A;
} else {
wCurrentRate = RATE_1M;
byPktType = PK_TYPE_11B;
}
// SetPower will cause error power TX state for OFDM Date packet in TX buffer.
// 2004.11.11 Kyle -- Using OFDM power to tx MngPkt will decrease the connection capability.
// And cmd timer will wait data pkt TX finish before scanning so it's OK
// to set power here.
if (pDevice->pMgmt->eScanState != WMAC_NO_SCANNING)
RFbSetPower(pDevice, wCurrentRate, pDevice->byCurrentCh);
else
RFbSetPower(pDevice, wCurrentRate, pMgmt->uCurrChannel);
pTxBufHead->byTxPower = pDevice->byCurPwr;
//+++++++++++++++++++++ Patch VT3253 A1 performance +++++++++++++++++++++++++++
if (pDevice->byFOETuning) {
if ((pPacket->p80211Header->sA3.wFrameCtl & TYPE_DATE_NULL) == TYPE_DATE_NULL) {
wCurrentRate = RATE_24M;
byPktType = PK_TYPE_11GA;
}
}
//Set packet type
if (byPktType == PK_TYPE_11A) {//0000 0000 0000 0000
pTxBufHead->wFIFOCtl = 0;
} else if (byPktType == PK_TYPE_11B) {//0000 0001 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11B;
} else if (byPktType == PK_TYPE_11GB) {//0000 0010 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GB;
} else if (byPktType == PK_TYPE_11GA) {//0000 0011 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GA;
}
pTxBufHead->wFIFOCtl |= FIFOCTL_TMOEN;
pTxBufHead->wTimeStamp = cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us);
if (is_multicast_ether_addr(&(pPacket->p80211Header->sA3.abyAddr1[0])))
bNeedACK = false;
else {
bNeedACK = true;
pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK;
}
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) ||
(pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
pTxBufHead->wFIFOCtl |= FIFOCTL_LRETRY;
}
pTxBufHead->wFIFOCtl |= (FIFOCTL_GENINT | FIFOCTL_ISDMA0);
if ((pPacket->p80211Header->sA4.wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL) {
bIsPSPOLL = true;
cbMacHdLen = WLAN_HDR_ADDR2_LEN;
} else {
cbMacHdLen = WLAN_HDR_ADDR3_LEN;
}
//Set FRAGCTL_MACHDCNT
pTxBufHead->wFragCtl |= cpu_to_le16((unsigned short)(cbMacHdLen << 10));
// Notes:
// Although spec says MMPDU can be fragmented; In most cases,
// no one will send a MMPDU under fragmentation. With RTS may occur.
pDevice->bAES = false; //Set FRAGCTL_WEPTYP
if (WLAN_GET_FC_ISWEP(pPacket->p80211Header->sA4.wFrameCtl) != 0) {
if (pDevice->eEncryptionStatus == Ndis802_11Encryption1Enabled) {
cbIVlen = 4;
cbICVlen = 4;
pTxBufHead->wFragCtl |= FRAGCTL_LEGACY;
} else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) {
cbIVlen = 8;//IV+ExtIV
cbMIClen = 8;
cbICVlen = 4;
pTxBufHead->wFragCtl |= FRAGCTL_TKIP;
//We need to get seed here for filling TxKey entry.
} else if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) {
cbIVlen = 8;//RSN Header
cbICVlen = 8;//MIC
pTxBufHead->wFragCtl |= FRAGCTL_AES;
pDevice->bAES = true;
}
//MAC Header should be padding 0 to DW alignment.
uPadding = 4 - (cbMacHdLen%4);
uPadding %= 4;
}
cbFrameSize = cbMacHdLen + cbFrameBodySize + cbIVlen + cbMIClen + cbICVlen + cbFCSlen;
//Set FIFOCTL_GrpAckPolicy
if (pDevice->bGrpAckPolicy == true) //0000 0100 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK;
//the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
//Set RrvTime/RTS/CTS Buffer
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
pvRrvTime = (void *) (pbyTxBufferAddr + wTxBufSize);
pMICHDR = NULL;
pvRTS = NULL;
pCTS = (struct vnt_cts *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_cts));
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_cts) + sizeof(struct vnt_cts));
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
} else { // 802.11a/b packet
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = NULL;
pvRTS = NULL;
pCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_ab));
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
sizeof(struct vnt_tx_datahead_ab);
}
memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderSize - wTxBufSize));
memcpy(&(sEthHeader.abyDstAddr[0]), &(pPacket->p80211Header->sA3.abyAddr1[0]), ETH_ALEN);
memcpy(&(sEthHeader.abySrcAddr[0]), &(pPacket->p80211Header->sA3.abyAddr2[0]), ETH_ALEN);
//=========================
// No Fragmentation
//=========================
pTxBufHead->wFragCtl |= (unsigned short)FRAGCTL_NONFRAG;
//Fill FIFO,RrvTime,RTS,and CTS
s_vGenerateTxParameter(pDevice, byPktType, pbyTxBufferAddr, pvRrvTime, pvRTS, pCTS,
cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, wCurrentRate);
//Fill DataHead
uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFrameSize, TYPE_TXDMA0, bNeedACK,
0, 0, 1, AUTO_FB_NONE, wCurrentRate);
pMACHeader = (PS802_11Header) (pbyTxBufferAddr + cbHeaderSize);
cbReqCount = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen + cbFrameBodySize;
if (WLAN_GET_FC_ISWEP(pPacket->p80211Header->sA4.wFrameCtl) != 0) {
unsigned char *pbyIVHead;
unsigned char *pbyPayloadHead;
unsigned char *pbyBSSID;
PSKeyItem pTransmitKey = NULL;
pbyIVHead = (unsigned char *)(pbyTxBufferAddr + cbHeaderSize + cbMacHdLen + uPadding);
pbyPayloadHead = (unsigned char *)(pbyTxBufferAddr + cbHeaderSize + cbMacHdLen + uPadding + cbIVlen);
//Fill TXKEY
//Kyle: Need fix: TKIP and AES did't encrypt Mnt Packet.
//s_vFillTxKey(pDevice, (unsigned char *)pTxBufHead->adwTxKey, NULL);
//Fill IV(ExtIV,RSNHDR)
//s_vFillPrePayload(pDevice, pbyIVHead, NULL);
//---------------------------
// S/W or H/W Encryption
//---------------------------
do {
if ((pDevice->op_mode == NL80211_IFTYPE_STATION) &&
(pDevice->bLinkPass == true)) {
pbyBSSID = pDevice->abyBSSID;
// get pairwise key
if (KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, PAIRWISE_KEY, &pTransmitKey) == false) {
// get group key
if (KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == true) {
pr_debug("Get GTK\n");
break;
}
} else {
pr_debug("Get PTK\n");
break;
}
}
// get group key
pbyBSSID = pDevice->abyBroadcastAddr;
if (KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == false) {
pTransmitKey = NULL;
pr_debug("KEY is NULL. OP Mode[%d]\n",
pDevice->op_mode);
} else {
pr_debug("Get GTK\n");
}
} while (false);
//Fill TXKEY
s_vFillTxKey(pDevice, (unsigned char *)(pTxBufHead->adwTxKey), pbyIVHead, pTransmitKey,
(unsigned char *)pMACHeader, (unsigned short)cbFrameBodySize, NULL);
memcpy(pMACHeader, pPacket->p80211Header, cbMacHdLen);
memcpy(pbyPayloadHead, ((unsigned char *)(pPacket->p80211Header) + cbMacHdLen),
cbFrameBodySize);
} else {
// Copy the Packet into a tx Buffer
memcpy(pMACHeader, pPacket->p80211Header, pPacket->cbMPDULen);
}
pMACHeader->wSeqCtl = cpu_to_le16(pDevice->wSeqCounter << 4);
pDevice->wSeqCounter++;
if (pDevice->wSeqCounter > 0x0fff)
pDevice->wSeqCounter = 0;
if (bIsPSPOLL) {
// The MAC will automatically replace the Duration-field of MAC header by Duration-field
// of FIFO control header.
// This will cause AID-field of PS-POLL packet to be incorrect (Because PS-POLL's AID field is
// in the same place of other packet's Duration-field).
// And it will cause Cisco-AP to issue Disassociation-packet
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
((struct vnt_tx_datahead_g *)pvTxDataHd)->duration_a = cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
((struct vnt_tx_datahead_g *)pvTxDataHd)->duration_b = cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
} else {
((struct vnt_tx_datahead_ab *)pvTxDataHd)->duration = cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
}
}
// first TD is the only TD
//Set TSR1 & ReqCount in TxDescHead
pFrstTD->m_td1TD1.byTCR = (TCR_STP | TCR_EDP | EDMSDU);
pFrstTD->pTDInfo->skb_dma = pFrstTD->pTDInfo->buf_dma;
pFrstTD->m_td1TD1.wReqCount = cpu_to_le16((unsigned short)(cbReqCount));
pFrstTD->buff_addr = cpu_to_le32(pFrstTD->pTDInfo->skb_dma);
pFrstTD->pTDInfo->byFlags = 0;
if (MACbIsRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PS)) {
// Disable PS
MACbPSWakeup(pDevice->PortOffset);
}
pDevice->bPWBitOn = false;
wmb();
pFrstTD->m_td0TD0.f1Owner = OWNED_BY_NIC;
wmb();
pDevice->iTDUsed[TYPE_TXDMA0]++;
if (AVAIL_TD(pDevice, TYPE_TXDMA0) <= 1)
pr_debug(" available td0 <= 1\n");
pDevice->apCurrTD[TYPE_TXDMA0] = pFrstTD->next;
pDevice->nTxDataTimeCout = 0; //2008-8-21 chester <add> for send null packet
// Poll Transmit the adapter
MACvTransmit0(pDevice->PortOffset);
return CMD_STATUS_PENDING;
}
CMD_STATUS csBeacon_xmit(struct vnt_private *pDevice, PSTxMgmtPacket pPacket)
{
unsigned char byPktType;
unsigned char *pbyBuffer = (unsigned char *)pDevice->tx_beacon_bufs;
unsigned int cbFrameSize = pPacket->cbMPDULen + WLAN_FCS_LEN;
unsigned int cbHeaderSize = 0;
struct vnt_tx_short_buf_head *short_head =
(struct vnt_tx_short_buf_head *)pbyBuffer;
PS802_11Header pMACHeader;
unsigned short wCurrentRate;
memset(short_head, 0, sizeof(*short_head));
if (pDevice->eCurrentPHYType == PHY_TYPE_11A) {
wCurrentRate = RATE_6M;
byPktType = PK_TYPE_11A;
} else {
wCurrentRate = RATE_2M;
byPktType = PK_TYPE_11B;
}
//Set Preamble type always long
pDevice->byPreambleType = PREAMBLE_LONG;
/* Set FIFOCTL_GENINT */
short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
/* Set packet type & Get Duration */
if (byPktType == PK_TYPE_11A) {//0000 0000 0000 0000
short_head->duration =
cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A,
cbFrameSize, byPktType, wCurrentRate, false,
0, 0, 1, AUTO_FB_NONE));
} else if (byPktType == PK_TYPE_11B) {//0000 0001 0000 0000
short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_11B);
short_head->duration =
cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B,
cbFrameSize, byPktType, wCurrentRate, false,
0, 0, 1, AUTO_FB_NONE));
}
vnt_get_phy_field(pDevice, cbFrameSize,
wCurrentRate, byPktType, &short_head->ab);
/* Get TimeStampOff */
short_head->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
cbHeaderSize = sizeof(struct vnt_tx_short_buf_head);
//Generate Beacon Header
pMACHeader = (PS802_11Header)(pbyBuffer + cbHeaderSize);
memcpy(pMACHeader, pPacket->p80211Header, pPacket->cbMPDULen);
pMACHeader->wDurationID = 0;
pMACHeader->wSeqCtl = cpu_to_le16(pDevice->wSeqCounter << 4);
pDevice->wSeqCounter++;
if (pDevice->wSeqCounter > 0x0fff)
pDevice->wSeqCounter = 0;
// Set Beacon buffer length
pDevice->wBCNBufLen = pPacket->cbMPDULen + cbHeaderSize;
MACvSetCurrBCNTxDescAddr(pDevice->PortOffset, (pDevice->tx_beacon_dma));
MACvSetCurrBCNLength(pDevice->PortOffset, pDevice->wBCNBufLen);
// Set auto Transmit on
MACvRegBitsOn(pDevice->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
// Poll Transmit the adapter
MACvTransmitBCN(pDevice->PortOffset);
return CMD_STATUS_PENDING;
}
unsigned int
cbGetFragCount(
struct vnt_private *pDevice,
PSKeyItem pTransmitKey,
unsigned int cbFrameBodySize,
PSEthernetHeader psEthHeader
)
{
unsigned int cbMACHdLen;
unsigned int cbFrameSize;
unsigned int cbFragmentSize; //Hdr+(IV)+payoad+(MIC)+(ICV)+FCS
unsigned int cbFragPayloadSize;
unsigned int cbLastFragPayloadSize;
unsigned int cbIVlen = 0;
unsigned int cbICVlen = 0;
unsigned int cbMIClen = 0;
unsigned int cbFCSlen = 4;
unsigned int uMACfragNum = 1;
bool bNeedACK;
if ((pDevice->op_mode == NL80211_IFTYPE_ADHOC) ||
(pDevice->op_mode == NL80211_IFTYPE_AP)) {
if (is_multicast_ether_addr(&(psEthHeader->abyDstAddr[0])))
bNeedACK = false;
else
bNeedACK = true;
} else {
// MSDUs in Infra mode always need ACK
bNeedACK = true;
}
if (pDevice->bLongHeader)
cbMACHdLen = WLAN_HDR_ADDR3_LEN + 6;
else
cbMACHdLen = WLAN_HDR_ADDR3_LEN;
if (pDevice->bEncryptionEnable == true) {
if (pTransmitKey == NULL) {
if ((pDevice->eEncryptionStatus == Ndis802_11Encryption1Enabled) ||
(pDevice->pMgmt->eAuthenMode < WMAC_AUTH_WPA)) {
cbIVlen = 4;
cbICVlen = 4;
} else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) {
cbIVlen = 8;//IV+ExtIV
cbMIClen = 8;
cbICVlen = 4;
} else if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) {
cbIVlen = 8;//RSN Header
cbICVlen = 8;//MIC
}
} else if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) {
cbIVlen = 4;
cbICVlen = 4;
} else if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
cbIVlen = 8;//IV+ExtIV
cbMIClen = 8;
cbICVlen = 4;
} else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) {
cbIVlen = 8;//RSN Header
cbICVlen = 8;//MIC
}
}
cbFrameSize = cbMACHdLen + cbIVlen + (cbFrameBodySize + cbMIClen) + cbICVlen + cbFCSlen;
if ((cbFrameSize > pDevice->wFragmentationThreshold) && (bNeedACK == true)) {
// Fragmentation
cbFragmentSize = pDevice->wFragmentationThreshold;
cbFragPayloadSize = cbFragmentSize - cbMACHdLen - cbIVlen - cbICVlen - cbFCSlen;
uMACfragNum = (unsigned short) ((cbFrameBodySize + cbMIClen) / cbFragPayloadSize);
cbLastFragPayloadSize = (cbFrameBodySize + cbMIClen) % cbFragPayloadSize;
if (cbLastFragPayloadSize == 0)
cbLastFragPayloadSize = cbFragPayloadSize;
else
uMACfragNum++;
}
return uMACfragNum;
}
void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb,
unsigned char *pbMPDU, unsigned int cbMPDULen)
{
PSTxDesc pFrstTD;
unsigned char byPktType;
unsigned char *pbyTxBufferAddr;
void *pvRTS;
void *pvCTS;
void *pvTxDataHd;
unsigned int uDuration;
unsigned int cbReqCount;
PS802_11Header pMACHeader;
unsigned int cbHeaderSize;
unsigned int cbFrameBodySize;
bool bNeedACK;
bool bIsPSPOLL = false;
PSTxBufHead pTxBufHead;
unsigned int cbFrameSize;
unsigned int cbIVlen = 0;
unsigned int cbICVlen = 0;
unsigned int cbMIClen = 0;
unsigned int cbFCSlen = 4;
unsigned int uPadding = 0;
unsigned int cbMICHDR = 0;
unsigned int uLength = 0;
u32 dwMICKey0, dwMICKey1;
u32 dwMIC_Priority;
u32 *pdwMIC_L;
u32 *pdwMIC_R;
unsigned short wTxBufSize;
unsigned int cbMacHdLen;
SEthernetHeader sEthHeader;
void *pvRrvTime;
void *pMICHDR;
PSMgmtObject pMgmt = pDevice->pMgmt;
unsigned short wCurrentRate = RATE_1M;
PUWLAN_80211HDR p80211Header;
unsigned int uNodeIndex = 0;
bool bNodeExist = false;
SKeyItem STempKey;
PSKeyItem pTransmitKey = NULL;
unsigned char *pbyIVHead;
unsigned char *pbyPayloadHead;
unsigned char *pbyMacHdr;
unsigned int cbExtSuppRate = 0;
pvRrvTime = pMICHDR = pvRTS = pvCTS = pvTxDataHd = NULL;
if (cbMPDULen <= WLAN_HDR_ADDR3_LEN)
cbFrameBodySize = 0;
else
cbFrameBodySize = cbMPDULen - WLAN_HDR_ADDR3_LEN;
p80211Header = (PUWLAN_80211HDR)pbMPDU;
pFrstTD = pDevice->apCurrTD[TYPE_TXDMA0];
pbyTxBufferAddr = (unsigned char *)pFrstTD->pTDInfo->buf;
pTxBufHead = (PSTxBufHead) pbyTxBufferAddr;
wTxBufSize = sizeof(STxBufHead);
memset(pTxBufHead, 0, wTxBufSize);
if (pDevice->eCurrentPHYType == PHY_TYPE_11A) {
wCurrentRate = RATE_6M;
byPktType = PK_TYPE_11A;
} else {
wCurrentRate = RATE_1M;
byPktType = PK_TYPE_11B;
}
// SetPower will cause error power TX state for OFDM Date packet in TX buffer.
// 2004.11.11 Kyle -- Using OFDM power to tx MngPkt will decrease the connection capability.
// And cmd timer will wait data pkt TX to finish before scanning so it's OK
// to set power here.
if (pDevice->pMgmt->eScanState != WMAC_NO_SCANNING)
RFbSetPower(pDevice, wCurrentRate, pDevice->byCurrentCh);
else
RFbSetPower(pDevice, wCurrentRate, pMgmt->uCurrChannel);
pTxBufHead->byTxPower = pDevice->byCurPwr;
//+++++++++++++++++++++ Patch VT3253 A1 performance +++++++++++++++++++++++++++
if (pDevice->byFOETuning) {
if ((p80211Header->sA3.wFrameCtl & TYPE_DATE_NULL) == TYPE_DATE_NULL) {
wCurrentRate = RATE_24M;
byPktType = PK_TYPE_11GA;
}
}
pr_debug("vDMA0_tx_80211: p80211Header->sA3.wFrameCtl = %x\n",
p80211Header->sA3.wFrameCtl);
//Set packet type
if (byPktType == PK_TYPE_11A) {//0000 0000 0000 0000
pTxBufHead->wFIFOCtl = 0;
} else if (byPktType == PK_TYPE_11B) {//0000 0001 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11B;
} else if (byPktType == PK_TYPE_11GB) {//0000 0010 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GB;
} else if (byPktType == PK_TYPE_11GA) {//0000 0011 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GA;
}
pTxBufHead->wFIFOCtl |= FIFOCTL_TMOEN;
pTxBufHead->wTimeStamp = cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us);
if (is_multicast_ether_addr(&(p80211Header->sA3.abyAddr1[0]))) {
bNeedACK = false;
if (pDevice->bEnableHostWEP) {
uNodeIndex = 0;
bNodeExist = true;
}
} else {
if (pDevice->bEnableHostWEP) {
if (BSSDBbIsSTAInNodeDB(pDevice->pMgmt, (unsigned char *)(p80211Header->sA3.abyAddr1), &uNodeIndex))
bNodeExist = true;
}
bNeedACK = true;
pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK;
}
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) ||
(pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
pTxBufHead->wFIFOCtl |= FIFOCTL_LRETRY;
}
pTxBufHead->wFIFOCtl |= (FIFOCTL_GENINT | FIFOCTL_ISDMA0);
if ((p80211Header->sA4.wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL) {
bIsPSPOLL = true;
cbMacHdLen = WLAN_HDR_ADDR2_LEN;
} else {
cbMacHdLen = WLAN_HDR_ADDR3_LEN;
}
// hostapd deamon ext support rate patch
if (WLAN_GET_FC_FSTYPE(p80211Header->sA4.wFrameCtl) == WLAN_FSTYPE_ASSOCRESP) {
if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len != 0)
cbExtSuppRate += ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len + WLAN_IEHDR_LEN;
if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len != 0)
cbExtSuppRate += ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len + WLAN_IEHDR_LEN;
if (cbExtSuppRate > 0)
cbFrameBodySize = WLAN_ASSOCRESP_OFF_SUPP_RATES;
}
//Set FRAGCTL_MACHDCNT
pTxBufHead->wFragCtl |= cpu_to_le16((unsigned short)cbMacHdLen << 10);
// Notes:
// Although spec says MMPDU can be fragmented; In most cases,
// no one will send a MMPDU under fragmentation. With RTS may occur.
pDevice->bAES = false; //Set FRAGCTL_WEPTYP
if (WLAN_GET_FC_ISWEP(p80211Header->sA4.wFrameCtl) != 0) {
if (pDevice->eEncryptionStatus == Ndis802_11Encryption1Enabled) {
cbIVlen = 4;
cbICVlen = 4;
pTxBufHead->wFragCtl |= FRAGCTL_LEGACY;
} else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) {
cbIVlen = 8;//IV+ExtIV
cbMIClen = 8;
cbICVlen = 4;
pTxBufHead->wFragCtl |= FRAGCTL_TKIP;
//We need to get seed here for filling TxKey entry.
} else if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) {
cbIVlen = 8;//RSN Header
cbICVlen = 8;//MIC
cbMICHDR = sizeof(struct vnt_mic_hdr);
pTxBufHead->wFragCtl |= FRAGCTL_AES;
pDevice->bAES = true;
}
//MAC Header should be padding 0 to DW alignment.
uPadding = 4 - (cbMacHdLen%4);
uPadding %= 4;
}
cbFrameSize = cbMacHdLen + cbFrameBodySize + cbIVlen + cbMIClen + cbICVlen + cbFCSlen + cbExtSuppRate;
//Set FIFOCTL_GrpAckPolicy
if (pDevice->bGrpAckPolicy == true) //0000 0100 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK;
//the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_cts));
pvRTS = NULL;
pvCTS = (struct vnt_cts *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
sizeof(struct vnt_rrv_time_cts) + cbMICHDR + sizeof(struct vnt_cts));
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
cbMICHDR + sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
} else {//802.11a/b packet
pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr +
wTxBufSize + sizeof(struct vnt_rrv_time_ab));
pvRTS = NULL;
pvCTS = NULL;
pvTxDataHd = (void *)(pbyTxBufferAddr +
wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_tx_datahead_ab);
}
memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderSize - wTxBufSize));
memcpy(&(sEthHeader.abyDstAddr[0]), &(p80211Header->sA3.abyAddr1[0]), ETH_ALEN);
memcpy(&(sEthHeader.abySrcAddr[0]), &(p80211Header->sA3.abyAddr2[0]), ETH_ALEN);
//=========================
// No Fragmentation
//=========================
pTxBufHead->wFragCtl |= (unsigned short)FRAGCTL_NONFRAG;
//Fill FIFO,RrvTime,RTS,and CTS
s_vGenerateTxParameter(pDevice, byPktType, pbyTxBufferAddr, pvRrvTime, pvRTS, pvCTS,
cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, wCurrentRate);
//Fill DataHead
uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFrameSize, TYPE_TXDMA0, bNeedACK,
0, 0, 1, AUTO_FB_NONE, wCurrentRate);
pMACHeader = (PS802_11Header) (pbyTxBufferAddr + cbHeaderSize);
cbReqCount = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen + (cbFrameBodySize + cbMIClen) + cbExtSuppRate;
pbyMacHdr = (unsigned char *)(pbyTxBufferAddr + cbHeaderSize);
pbyPayloadHead = (unsigned char *)(pbyMacHdr + cbMacHdLen + uPadding + cbIVlen);
pbyIVHead = (unsigned char *)(pbyMacHdr + cbMacHdLen + uPadding);
// Copy the Packet into a tx Buffer
memcpy(pbyMacHdr, pbMPDU, cbMacHdLen);
// version set to 0, patch for hostapd deamon
pMACHeader->wFrameCtl &= cpu_to_le16(0xfffc);
memcpy(pbyPayloadHead, (pbMPDU + cbMacHdLen), cbFrameBodySize);
// replace support rate, patch for hostapd deamon(only support 11M)
if (WLAN_GET_FC_FSTYPE(p80211Header->sA4.wFrameCtl) == WLAN_FSTYPE_ASSOCRESP) {
if (cbExtSuppRate != 0) {
if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len != 0)
memcpy((pbyPayloadHead + cbFrameBodySize),
pMgmt->abyCurrSuppRates,
((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len + WLAN_IEHDR_LEN
);
if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len != 0)
memcpy((pbyPayloadHead + cbFrameBodySize) + ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len + WLAN_IEHDR_LEN,
pMgmt->abyCurrExtSuppRates,
((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len + WLAN_IEHDR_LEN
);
}
}
// Set wep
if (WLAN_GET_FC_ISWEP(p80211Header->sA4.wFrameCtl) != 0) {
if (pDevice->bEnableHostWEP) {
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
);
}
if ((pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) {
dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[16]);
dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[20]);
// DO Software Michael
MIC_vInit(dwMICKey0, dwMICKey1);
MIC_vAppend((unsigned char *)&(sEthHeader.abyDstAddr[0]), 12);
dwMIC_Priority = 0;
MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
pr_debug("DMA0_tx_8021:MIC KEY: %X, %X\n",
dwMICKey0, dwMICKey1);
uLength = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen;
MIC_vAppend((pbyTxBufferAddr + uLength), cbFrameBodySize);
pdwMIC_L = (u32 *)(pbyTxBufferAddr + uLength + cbFrameBodySize);
pdwMIC_R = (u32 *)(pbyTxBufferAddr + uLength + cbFrameBodySize + 4);
MIC_vGetMIC(pdwMIC_L, pdwMIC_R);
MIC_vUnInit();
if (pDevice->bTxMICFail == true) {
*pdwMIC_L = 0;
*pdwMIC_R = 0;
pDevice->bTxMICFail = false;
}
pr_debug("uLength: %d, %d\n", uLength, cbFrameBodySize);
pr_debug("cbReqCount:%d, %d, %d, %d\n",
cbReqCount, cbHeaderSize, uPadding, cbIVlen);
pr_debug("MIC:%x, %x\n", *pdwMIC_L, *pdwMIC_R);
}
s_vFillTxKey(pDevice, (unsigned char *)(pTxBufHead->adwTxKey), pbyIVHead, pTransmitKey,
pbyMacHdr, (unsigned short)cbFrameBodySize, (unsigned char *)pMICHDR);
if (pDevice->bEnableHostWEP) {
pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16 = pTransmitKey->dwTSC47_16;
pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0 = pTransmitKey->wTSC15_0;
}
if ((pDevice->byLocalID <= REV_ID_VT3253_A1))
s_vSWencryption(pDevice, pTransmitKey, pbyPayloadHead, (unsigned short)(cbFrameBodySize + cbMIClen));
}
pMACHeader->wSeqCtl = cpu_to_le16(pDevice->wSeqCounter << 4);
pDevice->wSeqCounter++;
if (pDevice->wSeqCounter > 0x0fff)
pDevice->wSeqCounter = 0;
if (bIsPSPOLL) {
// The MAC will automatically replace the Duration-field of MAC header by Duration-field
// of FIFO control header.
// This will cause AID-field of PS-POLL packet be incorrect (Because PS-POLL's AID field is
// in the same place of other packet's Duration-field).
// And it will cause Cisco-AP to issue Disassociation-packet
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
((struct vnt_tx_datahead_g *)pvTxDataHd)->duration_a = cpu_to_le16(p80211Header->sA2.wDurationID);
((struct vnt_tx_datahead_g *)pvTxDataHd)->duration_b = cpu_to_le16(p80211Header->sA2.wDurationID);
} else {
((struct vnt_tx_datahead_ab *)pvTxDataHd)->duration = cpu_to_le16(p80211Header->sA2.wDurationID);
}
}
// first TD is the only TD
//Set TSR1 & ReqCount in TxDescHead
pFrstTD->pTDInfo->skb = skb;
pFrstTD->m_td1TD1.byTCR = (TCR_STP | TCR_EDP | EDMSDU);
pFrstTD->pTDInfo->skb_dma = pFrstTD->pTDInfo->buf_dma;
pFrstTD->m_td1TD1.wReqCount = cpu_to_le16(cbReqCount);
pFrstTD->buff_addr = cpu_to_le32(pFrstTD->pTDInfo->skb_dma);
pFrstTD->pTDInfo->byFlags = 0;
pFrstTD->pTDInfo->byFlags |= TD_FLAGS_PRIV_SKB;
if (MACbIsRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PS)) {
// Disable PS
MACbPSWakeup(pDevice->PortOffset);
}
pDevice->bPWBitOn = false;
wmb();
pFrstTD->m_td0TD0.f1Owner = OWNED_BY_NIC;
wmb();
pDevice->iTDUsed[TYPE_TXDMA0]++;
if (AVAIL_TD(pDevice, TYPE_TXDMA0) <= 1)
pr_debug(" available td0 <= 1\n");
pDevice->apCurrTD[TYPE_TXDMA0] = pFrstTD->next;
// Poll Transmit the adapter
MACvTransmit0(pDevice->PortOffset);
}