diff options
Diffstat (limited to 'drivers/staging/vt6656/rxtx.c')
| -rw-r--r-- | drivers/staging/vt6656/rxtx.c | 2074 |
1 files changed, 2074 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c new file mode 100644 index 00000000000..704f4d3639b --- /dev/null +++ b/drivers/staging/vt6656/rxtx.c @@ -0,0 +1,2074 @@ +/* + * 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. + * s_vGenerateMACHeader - Translate 802.3 to 802.11 header + * csBeacon_xmit - beacon tx function + * csMgmt_xmit - management tx function + * 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 "michael.h" +#include "tkip.h" +#include "wctl.h" +#include "rf.h" +#include "datarate.h" +#include "usbpipe.h" +#include "iocmd.h" + +static int msglevel = MSG_LEVEL_INFO; + +static const u16 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 u16 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 u16 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 void s_vSaveTxPktInfo(struct vnt_private *pDevice, u8 byPktNum, + u8 *pbyDestAddr, u16 wPktLength, u16 wFIFOCtl); + +static struct vnt_usb_send_context *s_vGetFreeContext(struct vnt_private *); + +static u16 s_vGenerateTxParameter(struct vnt_private *pDevice, + u8 byPktType, u16 wCurrentRate, struct vnt_tx_buffer *tx_buffer, + struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize, + int bNeedACK, struct ethhdr *psEthHeader, bool need_rts); + +static void s_vGenerateMACHeader(struct vnt_private *pDevice, + u8 *pbyBufferAddr, u16 wDuration, struct ethhdr *psEthHeader, + int bNeedEncrypt, u16 wFragType, u32 uFragIdx); + +static void s_vFillTxKey(struct vnt_private *pDevice, + struct vnt_tx_fifo_head *fifo_head, u8 *pbyIVHead, + PSKeyItem pTransmitKey, u8 *pbyHdrBuf, u16 wPayloadLen, + struct vnt_mic_hdr *mic_hdr); + +static void s_vSWencryption(struct vnt_private *pDevice, + PSKeyItem pTransmitKey, u8 *pbyPayloadHead, u16 wPayloadSize); + +static unsigned int s_uGetTxRsvTime(struct vnt_private *pDevice, u8 byPktType, + u32 cbFrameLength, u16 wRate, int bNeedAck); + +static __le16 s_uGetRTSCTSRsvTime(struct vnt_private *priv, + u8 rsv_type, u8 pkt_type, u32 frame_length, u16 current_rate); + +static u16 s_vFillCTSHead(struct vnt_private *pDevice, + u8 byPktType, union vnt_tx_data_head *head, u32 cbFrameLength, + int bNeedAck, u16 wCurrentRate, u8 byFBOption); + +static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType, + union vnt_tx_data_head *head, u32 cbFrameLength, int bNeedAck, + struct ethhdr *psEthHeader, u16 wCurrentRate, u8 byFBOption); + +static __le16 s_uGetDataDuration(struct vnt_private *pDevice, + u8 byPktType, int bNeedAck); + +static __le16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, + u8 byDurType, u32 cbFrameLength, u8 byPktType, u16 wRate, + int bNeedAck, u8 byFBOption); + +static struct vnt_usb_send_context + *s_vGetFreeContext(struct vnt_private *priv) +{ + struct vnt_usb_send_context *context = NULL; + int ii; + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GetFreeContext()\n"); + + for (ii = 0; ii < priv->cbTD; ii++) { + if (!priv->apTD[ii]) + return NULL; + + context = priv->apTD[ii]; + if (context->in_use == false) { + context->in_use = true; + memset(context->data, 0, + MAX_TOTAL_SIZE_WITH_ALL_HEADERS); + return context; + } + } + + if (ii == priv->cbTD) + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"No Free Tx Context\n"); + + return NULL; +} + +static void s_vSaveTxPktInfo(struct vnt_private *pDevice, u8 byPktNum, + u8 *pbyDestAddr, u16 wPktLength, u16 wFIFOCtl) +{ + struct net_device_stats *stats = &pDevice->stats; + struct vnt_tx_pkt_info *pkt_info = pDevice->pkt_info; + + pkt_info[byPktNum].fifo_ctl = wFIFOCtl; + memcpy(pkt_info[byPktNum].dest_addr, pbyDestAddr, ETH_ALEN); + + stats->tx_bytes += wPktLength; +} + +static void s_vFillTxKey(struct vnt_private *pDevice, + struct vnt_tx_fifo_head *fifo_head, u8 *pbyIVHead, + PSKeyItem pTransmitKey, u8 *pbyHdrBuf, u16 wPayloadLen, + struct vnt_mic_hdr *mic_hdr) +{ + u8 *pbyBuf = (u8 *)&fifo_head->adwTxKey[0]; + __le32 *pdwIV = (__le32 *)pbyIVHead; + __le32 *pdwExtIV = (__le32 *)((u8 *)pbyIVHead + 4); + struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyHdrBuf; + __le32 rev_iv_counter; + + /* Fill TXKEY */ + if (pTransmitKey == NULL) + return; + + rev_iv_counter = cpu_to_le32(pDevice->dwIVCounter); + *pdwIV = cpu_to_le32(pDevice->dwIVCounter); + pDevice->byKeyIndex = pTransmitKey->dwKeyIndex & 0xf; + + switch (pTransmitKey->byCipherSuite) { + case KEY_CTL_WEP: + if (pTransmitKey->uKeyLength == WLAN_WEP232_KEYLEN) { + memcpy(pDevice->abyPRNG, (u8 *)&rev_iv_counter, 3); + memcpy(pDevice->abyPRNG + 3, pTransmitKey->abyKey, + pTransmitKey->uKeyLength); + } else { + memcpy(pbyBuf, (u8 *)&rev_iv_counter, 3); + memcpy(pbyBuf + 3, pTransmitKey->abyKey, + pTransmitKey->uKeyLength); + if (pTransmitKey->uKeyLength == WLAN_WEP40_KEYLEN) { + memcpy(pbyBuf+8, (u8 *)&rev_iv_counter, 3); + memcpy(pbyBuf+11, pTransmitKey->abyKey, + pTransmitKey->uKeyLength); + } + + memcpy(pDevice->abyPRNG, pbyBuf, 16); + } + /* Append IV after Mac Header */ + *pdwIV &= cpu_to_le32(WEP_IV_MASK); + *pdwIV |= cpu_to_le32((u32)pDevice->byKeyIndex << 30); + + pDevice->dwIVCounter++; + if (pDevice->dwIVCounter > WEP_IV_MASK) + pDevice->dwIVCounter = 0; + + break; + case 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) = (u8)(((pDevice->byKeyIndex << 6) & + 0xc0) | 0x20); + /* Append IV&ExtIV after Mac Header */ + *pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16); + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO + "vFillTxKey()---- pdwExtIV: %x\n", *pdwExtIV); + + break; + case 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) = (u8)(((pDevice->byKeyIndex << 6) & + 0xc0) | 0x20); + + *pdwIV |= cpu_to_le32((u32)(pTransmitKey->wTSC15_0)); + + /* Append IV&ExtIV after Mac Header */ + *pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16); + + if (!mic_hdr) + return; + + /* MICHDR0 */ + mic_hdr->id = 0x59; + mic_hdr->payload_len = cpu_to_be16(wPayloadLen); + memcpy(mic_hdr->mic_addr2, pMACHeader->addr2, ETH_ALEN); + + mic_hdr->tsc_47_16 = cpu_to_be32(pTransmitKey->dwTSC47_16); + mic_hdr->tsc_15_0 = cpu_to_be16(pTransmitKey->wTSC15_0); + + /* MICHDR1 */ + if (ieee80211_has_a4(pMACHeader->frame_control)) + mic_hdr->hlen = cpu_to_be16(28); + else + mic_hdr->hlen = cpu_to_be16(22); + + memcpy(mic_hdr->addr1, pMACHeader->addr1, ETH_ALEN); + memcpy(mic_hdr->addr2, pMACHeader->addr2, ETH_ALEN); + + /* MICHDR2 */ + memcpy(mic_hdr->addr3, pMACHeader->addr3, ETH_ALEN); + mic_hdr->frame_control = cpu_to_le16( + le16_to_cpu(pMACHeader->frame_control) & 0xc78f); + mic_hdr->seq_ctrl = cpu_to_le16( + le16_to_cpu(pMACHeader->seq_ctrl) & 0xf); + + if (ieee80211_has_a4(pMACHeader->frame_control)) + memcpy(mic_hdr->addr4, pMACHeader->addr4, ETH_ALEN); + } +} + +static void s_vSWencryption(struct vnt_private *pDevice, + PSKeyItem pTransmitKey, u8 *pbyPayloadHead, u16 wPayloadSize) +{ + u32 cbICVlen = 4; + u32 dwICV = 0xffffffff; + u32 *pdwICV; + + if (pTransmitKey == NULL) + return; + + if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) { + //======================================================================= + // Append ICV after payload + dwICV = ether_crc_le(wPayloadSize, pbyPayloadHead); + pdwICV = (u32 *)(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 = ether_crc_le(wPayloadSize, pbyPayloadHead); + pdwICV = (u32 *)(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 u32 s_uGetTxRsvTime(struct vnt_private *priv, u8 pkt_type, + u32 frame_length, u16 rate, int need_ack) +{ + u32 data_time, ack_time; + + data_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, + frame_length, rate); + + if (pkt_type == PK_TYPE_11B) + ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, 14, + (u16)priv->byTopCCKBasicRate); + else + ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, 14, + (u16)priv->byTopOFDMBasicRate); + + if (need_ack) + return data_time + priv->uSIFS + ack_time; + + return data_time; +} + +static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type, + u32 frame_length, u16 rate, int 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 *priv, + u8 rsv_type, u8 pkt_type, u32 frame_length, u16 current_rate) +{ + u32 rrv_time, rts_time, cts_time, ack_time, data_time; + + rrv_time = rts_time = cts_time = ack_time = data_time = 0; + + data_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, + frame_length, current_rate); + + if (rsv_type == 0) { + rts_time = BBuGetFrameTime(priv->byPreambleType, + pkt_type, 20, priv->byTopCCKBasicRate); + cts_time = ack_time = BBuGetFrameTime(priv->byPreambleType, + pkt_type, 14, priv->byTopCCKBasicRate); + } else if (rsv_type == 1) { + rts_time = BBuGetFrameTime(priv->byPreambleType, + pkt_type, 20, priv->byTopCCKBasicRate); + cts_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, + 14, priv->byTopCCKBasicRate); + ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, + 14, priv->byTopOFDMBasicRate); + } else if (rsv_type == 2) { + rts_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, + 20, priv->byTopOFDMBasicRate); + cts_time = ack_time = BBuGetFrameTime(priv->byPreambleType, + pkt_type, 14, priv->byTopOFDMBasicRate); + } else if (rsv_type == 3) { + cts_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, + 14, priv->byTopCCKBasicRate); + ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, + 14, priv->byTopOFDMBasicRate); + + rrv_time = cts_time + ack_time + data_time + 2 * priv->uSIFS; + + return cpu_to_le16((u16)rrv_time); + } + + rrv_time = rts_time + cts_time + ack_time + data_time + 3 * priv->uSIFS; + + return cpu_to_le16((u16)rrv_time); +} + +//byFreqType 0: 5GHz, 1:2.4Ghz +static __le16 s_uGetDataDuration(struct vnt_private *pDevice, + u8 byPktType, int bNeedAck) +{ + u32 uAckTime = 0; + + if (bNeedAck) { + if (byPktType == PK_TYPE_11B) + uAckTime = BBuGetFrameTime(pDevice->byPreambleType, + byPktType, 14, pDevice->byTopCCKBasicRate); + else + uAckTime = BBuGetFrameTime(pDevice->byPreambleType, + byPktType, 14, pDevice->byTopOFDMBasicRate); + return cpu_to_le16((u16)(pDevice->uSIFS + uAckTime)); + } + + return 0; +} + +//byFreqType: 0=>5GHZ 1=>2.4GHZ +static __le16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, u8 byDurType, + u32 cbFrameLength, u8 byPktType, u16 wRate, int bNeedAck, + u8 byFBOption) +{ + u32 uCTSTime = 0, uDurTime = 0; + + switch (byDurType) { + case RTSDUR_BB: + case RTSDUR_BA: + case RTSDUR_BA_F0: + case RTSDUR_BA_F1: + uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, + 14, pDevice->byTopCCKBasicRate); + uDurTime = uCTSTime + 2 * pDevice->uSIFS + + s_uGetTxRsvTime(pDevice, byPktType, + cbFrameLength, wRate, bNeedAck); + break; + + case RTSDUR_AA: + case RTSDUR_AA_F0: + case RTSDUR_AA_F1: + uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, + 14, pDevice->byTopOFDMBasicRate); + uDurTime = uCTSTime + 2 * pDevice->uSIFS + + s_uGetTxRsvTime(pDevice, byPktType, + cbFrameLength, wRate, bNeedAck); + break; + + case CTSDUR_BA: + case CTSDUR_BA_F0: + case CTSDUR_BA_F1: + uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, + byPktType, cbFrameLength, wRate, bNeedAck); + break; + + default: + break; + } + + return cpu_to_le16((u16)uDurTime); +} + +static u16 vnt_rxtx_datahead_g(struct vnt_private *priv, u8 pkt_type, u16 rate, + struct vnt_tx_datahead_g *buf, u32 frame_len, int need_ack) +{ + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a); + BBvCalculateParameter(priv, frame_len, priv->byTopCCKBasicRate, + PK_TYPE_11B, &buf->b); + + /* Get Duration and TimeStamp */ + buf->duration_a = s_uGetDataDuration(priv, pkt_type, need_ack); + buf->duration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack); + + buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate); + buf->time_stamp_off_b = vnt_time_stamp_off(priv, + priv->byTopCCKBasicRate); + + return le16_to_cpu(buf->duration_a); +} + +static u16 vnt_rxtx_datahead_g_fb(struct vnt_private *priv, u8 pkt_type, + u16 rate, struct vnt_tx_datahead_g_fb *buf, + u32 frame_len, int need_ack) +{ + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a); + + BBvCalculateParameter(priv, frame_len, priv->byTopCCKBasicRate, + PK_TYPE_11B, &buf->b); + + /* Get Duration and TimeStamp */ + buf->duration_a = s_uGetDataDuration(priv, pkt_type, need_ack); + buf->duration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack); + + buf->duration_a_f0 = s_uGetDataDuration(priv, pkt_type, need_ack); + buf->duration_a_f1 = s_uGetDataDuration(priv, pkt_type, need_ack); + + buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate); + buf->time_stamp_off_b = vnt_time_stamp_off(priv, + priv->byTopCCKBasicRate); + + return le16_to_cpu(buf->duration_a); +} + +static u16 vnt_rxtx_datahead_a_fb(struct vnt_private *priv, u8 pkt_type, + u16 rate, struct vnt_tx_datahead_a_fb *buf, + u32 frame_len, int need_ack) +{ + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a); + /* Get Duration and TimeStampOff */ + buf->duration = s_uGetDataDuration(priv, pkt_type, need_ack); + + buf->duration_f0 = s_uGetDataDuration(priv, pkt_type, need_ack); + buf->duration_f1 = s_uGetDataDuration(priv, pkt_type, need_ack); + + buf->time_stamp_off = vnt_time_stamp_off(priv, rate); + + return le16_to_cpu(buf->duration); +} + +static u16 vnt_rxtx_datahead_ab(struct vnt_private *priv, u8 pkt_type, + u16 rate, struct vnt_tx_datahead_ab *buf, + u32 frame_len, int need_ack) +{ + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->ab); + /* Get Duration and TimeStampOff */ + buf->duration = s_uGetDataDuration(priv, pkt_type, need_ack); + + buf->time_stamp_off = vnt_time_stamp_off(priv, rate); + + return le16_to_cpu(buf->duration); +} + +static int vnt_fill_ieee80211_rts(struct vnt_private *priv, + struct ieee80211_rts *rts, struct ethhdr *eth_hdr, + __le16 duration) +{ + rts->duration = duration; + rts->frame_control = + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); + + if (priv->op_mode == NL80211_IFTYPE_ADHOC || + priv->op_mode == NL80211_IFTYPE_AP) + memcpy(rts->ra, eth_hdr->h_dest, ETH_ALEN); + else + memcpy(rts->ra, priv->abyBSSID, ETH_ALEN); + + if (priv->op_mode == NL80211_IFTYPE_AP) + memcpy(rts->ta, priv->abyBSSID, ETH_ALEN); + else + memcpy(rts->ta, eth_hdr->h_source, ETH_ALEN); + + return 0; +} + +static u16 vnt_rxtx_rts_g_head(struct vnt_private *priv, + struct vnt_rts_g *buf, struct ethhdr *eth_hdr, + u8 pkt_type, u32 frame_len, int need_ack, + u16 current_rate, u8 fb_option) +{ + u16 rts_frame_len = 20; + + BBvCalculateParameter(priv, rts_frame_len, priv->byTopCCKBasicRate, + PK_TYPE_11B, &buf->b); + BBvCalculateParameter(priv, rts_frame_len, + priv->byTopOFDMBasicRate, pkt_type, &buf->a); + + buf->duration_bb = s_uGetRTSCTSDuration(priv, RTSDUR_BB, frame_len, + PK_TYPE_11B, priv->byTopCCKBasicRate, need_ack, fb_option); + buf->duration_aa = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len, + pkt_type, current_rate, need_ack, fb_option); + buf->duration_ba = s_uGetRTSCTSDuration(priv, RTSDUR_BA, frame_len, + pkt_type, current_rate, need_ack, fb_option); + + vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration_aa); + + return vnt_rxtx_datahead_g(priv, pkt_type, current_rate, + &buf->data_head, frame_len, need_ack); +} + +static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv, + struct vnt_rts_g_fb *buf, struct ethhdr *eth_hdr, + u8 pkt_type, u32 frame_len, int need_ack, + u16 current_rate, u8 fb_option) +{ + u16 rts_frame_len = 20; + + BBvCalculateParameter(priv, rts_frame_len, priv->byTopCCKBasicRate, + PK_TYPE_11B, &buf->b); + BBvCalculateParameter(priv, rts_frame_len, + priv->byTopOFDMBasicRate, pkt_type, &buf->a); + + + buf->duration_bb = s_uGetRTSCTSDuration(priv, RTSDUR_BB, frame_len, + PK_TYPE_11B, priv->byTopCCKBasicRate, need_ack, fb_option); + buf->duration_aa = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len, + pkt_type, current_rate, need_ack, fb_option); + buf->duration_ba = s_uGetRTSCTSDuration(priv, RTSDUR_BA, frame_len, + pkt_type, current_rate, need_ack, fb_option); + + + buf->rts_duration_ba_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F0, + frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option); + buf->rts_duration_aa_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0, + frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option); + buf->rts_duration_ba_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F1, + frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option); + buf->rts_duration_aa_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1, + frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option); + + vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration_aa); + + return vnt_rxtx_datahead_g_fb(priv, pkt_type, current_rate, + &buf->data_head, frame_len, need_ack); +} + +static u16 vnt_rxtx_rts_ab_head(struct vnt_private *priv, + struct vnt_rts_ab *buf, struct ethhdr *eth_hdr, + u8 pkt_type, u32 frame_len, int need_ack, + u16 current_rate, u8 fb_option) +{ + u16 rts_frame_len = 20; + + BBvCalculateParameter(priv, rts_frame_len, + priv->byTopOFDMBasicRate, pkt_type, &buf->ab); + + buf->duration = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len, + pkt_type, current_rate, need_ack, fb_option); + + vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration); + + return vnt_rxtx_datahead_ab(priv, pkt_type, current_rate, + &buf->data_head, frame_len, need_ack); +} + +static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv, + struct vnt_rts_a_fb *buf, struct ethhdr *eth_hdr, + u8 pkt_type, u32 frame_len, int need_ack, + u16 current_rate, u8 fb_option) +{ + u16 rts_frame_len = 20; + + BBvCalculateParameter(priv, rts_frame_len, + priv->byTopOFDMBasicRate, pkt_type, &buf->a); + + buf->duration = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len, + pkt_type, current_rate, need_ack, fb_option); + + buf->rts_duration_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0, + frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option); + + buf->rts_duration_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1, + frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option); + + vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration); + + return vnt_rxtx_datahead_a_fb(priv, pkt_type, current_rate, + &buf->data_head, frame_len, need_ack); +} + +static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType, + union vnt_tx_data_head *head, u32 cbFrameLength, int bNeedAck, + struct ethhdr *psEthHeader, u16 wCurrentRate, u8 byFBOption) +{ + + if (!head) + return 0; + + /* Note: So far RTSHead doesn't appear in ATIM + * & Beacom DMA, so we don't need to take them + * into account. + * Otherwise, we need to modified codes for them. + */ + switch (byPktType) { + case PK_TYPE_11GB: + case PK_TYPE_11GA: + if (byFBOption == AUTO_FB_NONE) + return vnt_rxtx_rts_g_head(pDevice, &head->rts_g, + psEthHeader, byPktType, cbFrameLength, + bNeedAck, wCurrentRate, byFBOption); + else + return vnt_rxtx_rts_g_fb_head(pDevice, &head->rts_g_fb, + psEthHeader, byPktType, cbFrameLength, + bNeedAck, wCurrentRate, byFBOption); + break; + case PK_TYPE_11A: + if (byFBOption) { + return vnt_rxtx_rts_a_fb_head(pDevice, &head->rts_a_fb, + psEthHeader, byPktType, cbFrameLength, + bNeedAck, wCurrentRate, byFBOption); + break; + } + case PK_TYPE_11B: + return vnt_rxtx_rts_ab_head(pDevice, &head->rts_ab, + psEthHeader, byPktType, cbFrameLength, + bNeedAck, wCurrentRate, byFBOption); + } + + return 0; +} + +static u16 s_vFillCTSHead(struct vnt_private *pDevice, + u8 byPktType, union vnt_tx_data_head *head, u32 cbFrameLength, + int bNeedAck, u16 wCurrentRate, u8 byFBOption) +{ + u32 uCTSFrameLen = 14; + + if (!head) + return 0; + + if (byFBOption != AUTO_FB_NONE) { + /* Auto Fall back */ + struct vnt_cts_fb *pBuf = &head->cts_g_fb; + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(pDevice, uCTSFrameLen, + pDevice->byTopCCKBasicRate, PK_TYPE_11B, &pBuf->b); + pBuf->duration_ba = s_uGetRTSCTSDuration(pDevice, CTSDUR_BA, + cbFrameLength, byPktType, + wCurrentRate, bNeedAck, byFBOption); + /* Get CTSDuration_ba_f0 */ + pBuf->cts_duration_ba_f0 = s_uGetRTSCTSDuration(pDevice, + CTSDUR_BA_F0, cbFrameLength, byPktType, + pDevice->tx_rate_fb0, bNeedAck, byFBOption); + /* Get CTSDuration_ba_f1 */ + pBuf->cts_duration_ba_f1 = s_uGetRTSCTSDuration(pDevice, + CTSDUR_BA_F1, cbFrameLength, byPktType, + pDevice->tx_rate_fb1, bNeedAck, byFBOption); + /* Get CTS Frame body */ + pBuf->data.duration = pBuf->duration_ba; + pBuf->data.frame_control = + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); + + memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN); + + return vnt_rxtx_datahead_g_fb(pDevice, byPktType, wCurrentRate, + &pBuf->data_head, cbFrameLength, bNeedAck); + } else { + struct vnt_cts *pBuf = &head->cts_g; + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(pDevice, uCTSFrameLen, + pDevice->byTopCCKBasicRate, PK_TYPE_11B, &pBuf->b); + /* Get CTSDuration_ba */ + pBuf->duration_ba = s_uGetRTSCTSDuration(pDevice, + CTSDUR_BA, cbFrameLength, byPktType, + wCurrentRate, bNeedAck, byFBOption); + /*Get CTS Frame body*/ + pBuf->data.duration = pBuf->duration_ba; + pBuf->data.frame_control = + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); + + memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN); + + return vnt_rxtx_datahead_g(pDevice, byPktType, wCurrentRate, + &pBuf->data_head, cbFrameLength, bNeedAck); + } + + return 0; +} + +/*+ + * + * Description: + * Generate FIFO control for MAC & Baseband controller + * + * Parameters: + * In: + * pDevice - Pointer to adpater + * 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 + * Out: + * none + * + * Return Value: none + * +-*/ + +static u16 s_vGenerateTxParameter(struct vnt_private *pDevice, + u8 byPktType, u16 wCurrentRate, struct vnt_tx_buffer *tx_buffer, + struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize, + int bNeedACK, struct ethhdr *psEthHeader, bool need_rts) +{ + struct vnt_tx_fifo_head *pFifoHead = &tx_buffer->fifo_head; + union vnt_tx_data_head *head = NULL; + u16 wFifoCtl; + u8 byFBOption = AUTO_FB_NONE; + + pFifoHead->current_rate = cpu_to_le16(wCurrentRate); + wFifoCtl = pFifoHead->wFIFOCtl; + + if (wFifoCtl & FIFOCTL_AUTO_FB_0) + byFBOption = AUTO_FB_0; + else if (wFifoCtl & FIFOCTL_AUTO_FB_1) + byFBOption = AUTO_FB_1; + + if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) { + if (need_rts) { + struct vnt_rrv_time_rts *pBuf = + &tx_buffer->tx_head.tx_rts.rts; + + pBuf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2, + byPktType, cbFrameSize, wCurrentRate); + pBuf->rts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 1, + byPktType, cbFrameSize, wCurrentRate); + pBuf->rts_rrv_time_bb = s_uGetRTSCTSRsvTime(pDevice, 0, + byPktType, cbFrameSize, wCurrentRate); + + pBuf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, + byPktType, cbFrameSize, wCurrentRate, bNeedACK); + pBuf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, + PK_TYPE_11B, cbFrameSize, + pDevice->byTopCCKBasicRate, bNeedACK); + + if (need_mic) { + *mic_hdr = &tx_buffer-> + tx_head.tx_rts.tx.mic.hdr; + head = &tx_buffer->tx_head.tx_rts.tx.mic.head; + } else { + head = &tx_buffer->tx_head.tx_rts.tx.head; + } + + /* Fill RTS */ + return s_vFillRTSHead(pDevice, byPktType, head, + cbFrameSize, bNeedACK, psEthHeader, + wCurrentRate, byFBOption); + + } else { + struct vnt_rrv_time_cts *pBuf = &tx_buffer-> + tx_head.tx_cts.cts; + + pBuf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, + byPktType, cbFrameSize, wCurrentRate, bNeedACK); + pBuf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, + PK_TYPE_11B, cbFrameSize, + pDevice->byTopCCKBasicRate, bNeedACK); + + pBuf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3, + byPktType, cbFrameSize, wCurrentRate); + + if (need_mic) { + *mic_hdr = &tx_buffer-> + tx_head.tx_cts.tx.mic.hdr; + head = &tx_buffer->tx_head.tx_cts.tx.mic.head; + } else { + head = &tx_buffer->tx_head.tx_cts.tx.head; + } + + /* Fill CTS */ + return s_vFillCTSHead(pDevice, byPktType, + head, cbFrameSize, bNeedACK, wCurrentRate, + byFBOption); + } + } else if (byPktType == PK_TYPE_11A) { + if (need_mic) { + *mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr; + head = &tx_buffer->tx_head.tx_ab.tx.mic.head; + } else { + head = &tx_buffer->tx_head.tx_ab.tx.head; + } + + if (need_rts) { + struct vnt_rrv_time_ab *pBuf = &tx_buffer-> + tx_head.tx_ab.ab; + + pBuf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2, + byPktType, cbFrameSize, wCurrentRate); + + pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, + byPktType, cbFrameSize, wCurrentRate, bNeedACK); + + /* Fill RTS */ + return s_vFillRTSHead(pDevice, byPktType, head, + cbFrameSize, bNeedACK, psEthHeader, + wCurrentRate, byFBOption); + } else { + struct vnt_rrv_time_ab *pBuf = &tx_buffer-> + tx_head.tx_ab.ab; + + pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, + PK_TYPE_11A, cbFrameSize, + wCurrentRate, bNeedACK); + + return vnt_rxtx_datahead_a_fb(pDevice, byPktType, + wCurrentRate, &head->data_head_a_fb, + cbFrameSize, bNeedACK); + } + } else if (byPktType == PK_TYPE_11B) { + if (need_mic) { + *mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr; + head = &tx_buffer->tx_head.tx_ab.tx.mic.head; + } else { + head = &tx_buffer->tx_head.tx_ab.tx.head; + } + + if (need_rts) { + struct vnt_rrv_time_ab *pBuf = &tx_buffer-> + tx_head.tx_ab.ab; + + pBuf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0, + byPktType, cbFrameSize, wCurrentRate); + + pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, + PK_TYPE_11B, cbFrameSize, wCurrentRate, + bNeedACK); + + /* Fill RTS */ + return s_vFillRTSHead(pDevice, byPktType, head, + cbFrameSize, + bNeedACK, psEthHeader, wCurrentRate, byFBOption); + } else { + struct vnt_rrv_time_ab *pBuf = &tx_buffer-> + tx_head.tx_ab.ab; + + pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, + PK_TYPE_11B, cbFrameSize, + wCurrentRate, bNeedACK); + + return vnt_rxtx_datahead_ab(pDevice, byPktType, + wCurrentRate, &head->data_head_ab, + cbFrameSize, bNeedACK); + } + } + + return 0; +} +/* + u8 * pbyBuffer,//point to pTxBufHead + u16 wFragType,//00:Non-Frag, 01:Start, 02:Mid, 03:Last + unsigned int cbFragmentSize,//Hdr+payoad+FCS +*/ + +static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType, + struct vnt_tx_buffer *tx_buffer, int bNeedEncryption, + u32 uSkbPacketLen, struct ethhdr *psEthHeader, + u8 *pPacket, PSKeyItem pTransmitKey, u32 uNodeIndex, u16 wCurrentRate, + u32 *pcbHeaderLen, u32 *pcbTotalLen) +{ + struct vnt_tx_fifo_head *pTxBufHead = &tx_buffer->fifo_head; + u32 cbFrameSize, cbFrameBodySize; + u32 cb802_1_H_len; + u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbMACHdLen = 0; + u32 cbFCSlen = 4, cbMICHDR = 0; + int bNeedACK; + bool bRTS = false; + u8 *pbyType, *pbyMacHdr, *pbyIVHead, *pbyPayloadHead, *pbyTxBufferAddr; + u8 abySNAP_RFC1042[ETH_ALEN] = {0xAA, 0xAA, 0x03, 0x00, 0x00, 0x00}; + u8 abySNAP_Bridgetunnel[ETH_ALEN] + = {0xAA, 0xAA, 0x03, 0x00, 0x00, 0xF8}; + u32 uDuration; + u32 cbHeaderLength = 0, uPadding = 0; + struct vnt_mic_hdr *pMICHDR; + u8 byFBOption = AUTO_FB_NONE, byFragType; + u16 wTxBufSize; + u32 dwMICKey0, dwMICKey1, dwMIC_Priority; + u32 *pdwMIC_L, *pdwMIC_R; + int bSoftWEP = false; + + pMICHDR = NULL; + + if (bNeedEncryption && pTransmitKey->pvKeyTable) { + if (((PSKeyTable)pTransmitKey->pvKeyTable)->bSoftWEP == true) + bSoftWEP = true; /* WEP 256 */ + } + + /* Get pkt type */ + if (ntohs(psEthHeader->h_proto) > ETH_DATA_LEN) + cb802_1_H_len = 8; + else + cb802_1_H_len = 0; + + cbFrameBodySize = uSkbPacketLen - ETH_HLEN + cb802_1_H_len; + + //Set packet type + pTxBufHead->wFIFOCtl |= (u16)(byPktType<<8); + + if (pDevice->op_mode == NL80211_IFTYPE_ADHOC || + pDevice->op_mode == NL80211_IFTYPE_AP) { + if (is_multicast_ether_addr(psEthHeader->h_dest)) { + bNeedACK = false; + pTxBufHead->wFIFOCtl = + pTxBufHead->wFIFOCtl & (~FIFOCTL_NEEDACK); + } else { + bNeedACK = true; + pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK; + } + } else { + /* MSDUs in Infra mode always need ACK */ + bNeedACK = true; + pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK; + } + + pTxBufHead->time_stamp = cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us); + + //Set FRAGCTL_MACHDCNT + cbMACHdLen = WLAN_HDR_ADDR3_LEN; + + pTxBufHead->wFragCtl |= (u16)(cbMACHdLen << 10); + + //Set FIFOCTL_GrpAckPolicy + if (pDevice->bGrpAckPolicy == true) {//0000 0100 0000 0000 + pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK; + } + + /* Set Auto Fallback Ctl */ + if (wCurrentRate >= RATE_18M) { + if (pDevice->byAutoFBCtrl == AUTO_FB_0) { + pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_0; + + pDevice->tx_rate_fb0 = + wFB_Opt0[FB_RATE0][wCurrentRate - RATE_18M]; + pDevice->tx_rate_fb1 = + wFB_Opt0[FB_RATE1][wCurrentRate - RATE_18M]; + + byFBOption = AUTO_FB_0; + } else if (pDevice->byAutoFBCtrl == AUTO_FB_1) { + pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_1; + pDevice->tx_rate_fb0 = + wFB_Opt1[FB_RATE0][wCurrentRate - RATE_18M]; + pDevice->tx_rate_fb1 = + wFB_Opt1[FB_RATE1][wCurrentRate - RATE_18M]; + + byFBOption = AUTO_FB_1; + } + } + + if (bSoftWEP != true) { + if ((bNeedEncryption) && (pTransmitKey != NULL)) { //WEP enabled + if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) { //WEP40 or WEP104 + pTxBufHead->wFragCtl |= FRAGCTL_LEGACY; + } + if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Tx Set wFragCtl == FRAGCTL_TKIP\n"); + pTxBufHead->wFragCtl |= FRAGCTL_TKIP; + } + else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) { //CCMP + pTxBufHead->wFragCtl |= FRAGCTL_AES; + } + } + } + + if ((bNeedEncryption) && (pTransmitKey != NULL)) { + 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; + } + if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) { + cbIVlen = 8;//RSN Header + cbICVlen = 8;//MIC + cbMICHDR = sizeof(struct vnt_mic_hdr); + } + if (bSoftWEP == false) { + //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) ) { + bRTS = false; + } else { + bRTS = true; + pTxBufHead->wFIFOCtl |= (FIFOCTL_RTS | FIFOCTL_LRETRY); + } + + pbyTxBufferAddr = (u8 *) &(pTxBufHead->adwTxKey[0]); + wTxBufSize = sizeof(struct vnt_tx_fifo_head); + + if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet + if (byFBOption == AUTO_FB_NONE) { + if (bRTS == true) {//RTS_need + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) + + cbMICHDR + sizeof(struct vnt_rts_g); + } + else { //RTS_needless + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) + + cbMICHDR + sizeof(struct vnt_cts); + } + } else { + // Auto Fall Back + if (bRTS == true) {//RTS_need + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) + + cbMICHDR + sizeof(struct vnt_rts_g_fb); + } + else if (bRTS == false) { //RTS_needless + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) + + cbMICHDR + sizeof(struct vnt_cts_fb); + } + } // Auto Fall Back + } + else {//802.11a/b packet + if (byFBOption == AUTO_FB_NONE) { + if (bRTS == true) {//RTS_need + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + + cbMICHDR + sizeof(struct vnt_rts_ab); + } + else if (bRTS == false) { //RTS_needless, no MICHDR + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + + cbMICHDR + sizeof(struct vnt_tx_datahead_ab); + } + } else { + // Auto Fall Back + if (bRTS == true) {//RTS_need + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + + cbMICHDR + sizeof(struct vnt_rts_a_fb); + } + else if (bRTS == false) { //RTS_needless + cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + + cbMICHDR + sizeof(struct vnt_tx_datahead_a_fb); + } + } // Auto Fall Back + } + + pbyMacHdr = (u8 *)(pbyTxBufferAddr + cbHeaderLength); + pbyIVHead = (u8 *)(pbyMacHdr + cbMACHdLen + uPadding); + pbyPayloadHead = (u8 *)(pbyMacHdr + cbMACHdLen + uPadding + cbIVlen); + + //========================= + // No Fragmentation + //========================= + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"No Fragmentation...\n"); + byFragType = FRAGCTL_NONFRAG; + //pTxBufHead = (PSTxBufHead) &(pTxBufHead->adwTxKey[0]); + + /* Fill FIFO, RrvTime, RTS and CTS */ + uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate, + tx_buffer, &pMICHDR, cbMICHDR, + cbFrameSize, bNeedACK, psEthHeader, bRTS); + + // Generate TX MAC Header + s_vGenerateMACHeader(pDevice, pbyMacHdr, (u16)uDuration, psEthHeader, bNeedEncryption, + byFragType, 0); + + if (bNeedEncryption == true) { + //Fill TXKEY + s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey, + pbyMacHdr, (u16)cbFrameBodySize, pMICHDR); + } + + /* 802.1H */ + if (ntohs(psEthHeader->h_proto) > ETH_DATA_LEN) { + if ((psEthHeader->h_proto == cpu_to_be16(ETH_P_IPX)) || + (psEthHeader->h_proto == cpu_to_le16(0xF380))) + memcpy((u8 *) (pbyPayloadHead), + abySNAP_Bridgetunnel, 6); + else + memcpy((u8 *) (pbyPayloadHead), &abySNAP_RFC1042[0], 6); + + pbyType = (u8 *) (pbyPayloadHead + 6); + + memcpy(pbyType, &(psEthHeader->h_proto), sizeof(u16)); + } + + if (pPacket != NULL) { + // Copy the Packet into a tx Buffer + memcpy((pbyPayloadHead + cb802_1_H_len), + (pPacket + ETH_HLEN), + uSkbPacketLen - ETH_HLEN + ); + + } else { + // while bRelayPacketSend psEthHeader is point to header+payload + memcpy((pbyPayloadHead + cb802_1_H_len), ((u8 *)psEthHeader) + ETH_HLEN, uSkbPacketLen - ETH_HLEN); + } + + if ((bNeedEncryption == true) && (pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) { + + /////////////////////////////////////////////////////////////////// + + if (pDevice->vnt_mgmt.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((u8 *)&(psEthHeader->h_dest[0]), 12); + dwMIC_Priority = 0; + MIC_vAppend((u8 *)&dwMIC_Priority, 4); + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC KEY: %X, %X\n", + dwMICKey0, dwMICKey1); + + /////////////////////////////////////////////////////////////////// + + //DBG_PRN_GRP12(("Length:%d, %d\n", cbFrameBodySize, uFromHDtoPLDLength)); + //for (ii = 0; ii < cbFrameBodySize; ii++) { + // DBG_PRN_GRP12(("%02x ", *((u8 *)((pbyPayloadHead + cb802_1_H_len) + ii)))); + //} + //DBG_PRN_GRP12(("\n\n\n")); + + MIC_vAppend(pbyPayloadHead, cbFrameBodySize); + + pdwMIC_L = (u32 *)(pbyPayloadHead + cbFrameBodySize); + pdwMIC_R = (u32 *)(pbyPayloadHead + cbFrameBodySize + 4); + + MIC_vGetMIC(pdwMIC_L, pdwMIC_R); + MIC_vUnInit(); + + if (pDevice->bTxMICFail == true) { + *pdwMIC_L = 0; + *pdwMIC_R = 0; + pDevice->bTxMICFail = false; + } + //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"uLength: %d, %d\n", uLength, cbFrameBodySize); + //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"cbReqCount:%d, %d, %d, %d\n", cbReqCount, cbHeaderLength, uPadding, cbIVlen); + //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC:%lX, %lX\n", *pdwMIC_L, *pdwMIC_R); + } + + if (bSoftWEP == true) { + + s_vSWencryption(pDevice, pTransmitKey, (pbyPayloadHead), (u16)(cbFrameBodySize + cbMIClen)); + + } else if ( ((pDevice->eEncryptionStatus == Ndis802_11Encryption1Enabled) && (bNeedEncryption == true)) || + ((pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) && (bNeedEncryption == true)) || + ((pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) && (bNeedEncryption == true)) ) { + cbFrameSize -= cbICVlen; + } + + cbFrameSize -= cbFCSlen; + + *pcbHeaderLen = cbHeaderLength; + *pcbTotalLen = cbHeaderLength + cbFrameSize ; + + //Set FragCtl in TxBufferHead + pTxBufHead->wFragCtl |= (u16)byFragType; + + return true; + +} + +/*+ + * + * 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 + * +-*/ + +static void s_vGenerateMACHeader(struct vnt_private *pDevice, + u8 *pbyBufferAddr, u16 wDuration, struct ethhdr *psEthHeader, + int bNeedEncrypt, u16 wFragType, u32 uFragIdx) +{ + struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyBufferAddr; + + pMACHeader->frame_control = TYPE_802_11_DATA; + + if (pDevice->op_mode == NL80211_IFTYPE_AP) { + memcpy(&(pMACHeader->addr1[0]), + &(psEthHeader->h_dest[0]), + ETH_ALEN); + memcpy(&(pMACHeader->addr2[0]), &(pDevice->abyBSSID[0]), ETH_ALEN); + memcpy(&(pMACHeader->addr3[0]), + &(psEthHeader->h_source[0]), + ETH_ALEN); + pMACHeader->frame_control |= FC_FROMDS; + } else { + if (pDevice->op_mode == NL80211_IFTYPE_ADHOC) { + memcpy(&(pMACHeader->addr1[0]), + &(psEthHeader->h_dest[0]), + ETH_ALEN); + memcpy(&(pMACHeader->addr2[0]), + &(psEthHeader->h_source[0]), + ETH_ALEN); + memcpy(&(pMACHeader->addr3[0]), + &(pDevice->abyBSSID[0]), + ETH_ALEN); + } else { + memcpy(&(pMACHeader->addr3[0]), + &(psEthHeader->h_dest[0]), + ETH_ALEN); + memcpy(&(pMACHeader->addr2[0]), + &(psEthHeader->h_source[0]), + ETH_ALEN); + memcpy(&(pMACHeader->addr1[0]), + &(pDevice->abyBSSID[0]), + ETH_ALEN); + pMACHeader->frame_control |= FC_TODS; + } + } + + if (bNeedEncrypt) + pMACHeader->frame_control |= cpu_to_le16((u16)WLAN_SET_FC_ISWEP(1)); + + pMACHeader->duration_id = cpu_to_le16(wDuration); + + pMACHeader->seq_ctrl = cpu_to_le16(pDevice->wSeqCounter << 4); + + //Set FragNumber in Sequence Control + pMACHeader->seq_ctrl |= cpu_to_le16((u16)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->frame_control |= FC_MOREFRAG; + } +} + +/*+ + * + * Description: + * Request instructs a MAC to transmit a 802.11 management packet through + * the adapter onto the medium. + * + * Parameters: + * In: + * hDeviceContext - Pointer to the adapter + * pPacket - A pointer to a descriptor for the packet to transmit + * Out: + * none + * + * Return Value: CMD_STATUS_PENDING if MAC Tx resource available; otherwise false + * +-*/ + +CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice, + struct vnt_tx_mgmt *pPacket) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + struct vnt_tx_buffer *pTX_Buffer; + struct vnt_usb_send_context *pContext; + struct vnt_tx_fifo_head *pTxBufHead; + struct ieee80211_hdr *pMACHeader; + struct ethhdr sEthHeader; + u8 byPktType, *pbyTxBufferAddr; + struct vnt_mic_hdr *pMICHDR = NULL; + u32 uDuration, cbReqCount, cbHeaderSize, cbFrameBodySize, cbFrameSize; + int bNeedACK, bIsPSPOLL = false; + u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbFCSlen = 4; + u32 uPadding = 0; + u16 wTxBufSize; + u32 cbMacHdLen; + u16 wCurrentRate = RATE_1M; + unsigned long flags; + + if (pDevice->byBBType == BB_TYPE_11A) { + wCurrentRate = RATE_6M; + byPktType = PK_TYPE_11A; + } else { + wCurrentRate = RATE_1M; + byPktType = PK_TYPE_11B; + } + + if (pMgmt->eScanState != WMAC_NO_SCANNING) + vnt_rf_setpower(pDevice, wCurrentRate, pDevice->byCurrentCh); + else + vnt_rf_setpower(pDevice, wCurrentRate, pMgmt->uCurrChannel); + + pDevice->wCurrentRate = wCurrentRate; + + spin_lock_irqsave(&pDevice->lock, flags); + + pContext = s_vGetFreeContext(pDevice); + if (!pContext) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO + "ManagementSend TX...NO CONTEXT!\n"); + spin_unlock_irqrestore(&pDevice->lock, flags); + return CMD_STATUS_RESOURCES; + } + + pTX_Buffer = (struct vnt_tx_buffer *)&pContext->data[0]; + cbFrameBodySize = pPacket->cbPayloadLen; + pTxBufHead = &pTX_Buffer->fifo_head; + pbyTxBufferAddr = (u8 *)&pTxBufHead->adwTxKey[0]; + wTxBufSize = sizeof(struct vnt_tx_fifo_head); + + + //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->time_stamp = cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us); + + if (is_multicast_ether_addr(pPacket->p80211Header->sA3.abyAddr1)) { + 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; + //Set Preamble type always long + //pDevice->byPreambleType = PREAMBLE_LONG; + // probe-response don't retry + //if ((pPacket->p80211Header->sA4.wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_MGMT_PROBE_RSP) { + // bNeedACK = false; + // pTxBufHead->wFIFOCtl &= (~FIFOCTL_NEEDACK); + //} + } + + 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((u16)(cbMacHdLen << 10)); + + // Notes: + // Although spec says MMPDU can be fragmented; In most case, + // no one will send a MMPDU under fragmentation. With RTS may occur. + + 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. + //TKIPvMixKey(pTransmitKey->abyKey, pDevice->abyCurrentNetAddr, + // pTransmitKey->wTSC15_0, pTransmitKey->dwTSC47_16, pDevice->abyPRNG); + } + else if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) { + cbIVlen = 8;//RSN Header + cbICVlen = 8;//MIC + pTxBufHead->wFragCtl |= FRAGCTL_AES; + } + //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 + cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) + + sizeof(struct vnt_cts); + } + else { // 802.11a/b packet + cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + + sizeof(struct vnt_tx_datahead_ab); + } + + memcpy(&(sEthHeader.h_dest[0]), + &(pPacket->p80211Header->sA3.abyAddr1[0]), + ETH_ALEN); + memcpy(&(sEthHeader.h_source[0]), + &(pPacket->p80211Header->sA3.abyAddr2[0]), + ETH_ALEN); + //========================= + // No Fragmentation + //========================= + pTxBufHead->wFragCtl |= (u16)FRAGCTL_NONFRAG; + + /* Fill FIFO,RrvTime,RTS,and CTS */ + uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate, + pTX_Buffer, &pMICHDR, 0, + cbFrameSize, bNeedACK, &sEthHeader, false); + + pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize); + + cbReqCount = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen + cbFrameBodySize; + + if (WLAN_GET_FC_ISWEP(pPacket->p80211Header->sA4.wFrameCtl) != 0) { + u8 * pbyIVHead; + u8 * pbyPayloadHead; + u8 * pbyBSSID; + PSKeyItem pTransmitKey = NULL; + + pbyIVHead = (u8 *)(pbyTxBufferAddr + cbHeaderSize + cbMacHdLen + uPadding); + pbyPayloadHead = (u8 *)(pbyTxBufferAddr + cbHeaderSize + cbMacHdLen + uPadding + cbIVlen); + 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) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Get GTK.\n"); + break; + } + } else { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Get PTK.\n"); + break; + } + } + // get group key + pbyBSSID = pDevice->abyBroadcastAddr; + if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == false) { + pTransmitKey = NULL; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KEY is NULL. OP Mode[%d]\n", pDevice->op_mode); + } else { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Get GTK.\n"); + } + } while(false); + //Fill TXKEY + s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey, + (u8 *)pMACHeader, (u16)cbFrameBodySize, NULL); + + memcpy(pMACHeader, pPacket->p80211Header, cbMacHdLen); + memcpy(pbyPayloadHead, ((u8 *)(pPacket->p80211Header) + cbMacHdLen), + cbFrameBodySize); + } + else { + // Copy the Packet into a tx Buffer + memcpy(pMACHeader, pPacket->p80211Header, pPacket->cbMPDULen); + } + + pMACHeader->seq_ctrl = 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 *data_head = &pTX_Buffer->tx_head. + tx_cts.tx.head.cts_g.data_head; + data_head->duration_a = + cpu_to_le16(pPacket->p80211Header->sA2.wDurationID); + data_head->duration_b = + cpu_to_le16(pPacket->p80211Header->sA2.wDurationID); + } else { + struct vnt_tx_datahead_ab *data_head = &pTX_Buffer->tx_head. + tx_ab.tx.head.data_head_ab; + data_head->duration = + cpu_to_le16(pPacket->p80211Header->sA2.wDurationID); + } + } + + pTX_Buffer->tx_byte_count = cpu_to_le16((u16)(cbReqCount)); + pTX_Buffer->byPKTNO = (u8) (((wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F)); + pTX_Buffer->byType = 0x00; + + pContext->skb = NULL; + pContext->type = CONTEXT_MGMT_PACKET; + pContext->buf_len = (u16)cbReqCount + 4; /* USB header */ + + if (WLAN_GET_FC_TODS(pMACHeader->frame_control) == 0) { + s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F), + &pMACHeader->addr1[0], (u16)cbFrameSize, + pTxBufHead->wFIFOCtl); + } + else { + s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F), + &pMACHeader->addr3[0], (u16)cbFrameSize, + pTxBufHead->wFIFOCtl); + } + + PIPEnsSendBulkOut(pDevice,pContext); + + spin_unlock_irqrestore(&pDevice->lock, flags); + + return CMD_STATUS_PENDING; +} + +CMD_STATUS csBeacon_xmit(struct vnt_private *pDevice, + struct vnt_tx_mgmt *pPacket) +{ + struct vnt_beacon_buffer *pTX_Buffer; + struct vnt_tx_short_buf_head *short_head; + u32 cbFrameSize = pPacket->cbMPDULen + WLAN_FCS_LEN; + u32 cbHeaderSize = 0; + struct ieee80211_hdr *pMACHeader; + u16 wCurrentRate; + u32 cbFrameBodySize; + u32 cbReqCount; + struct vnt_usb_send_context *pContext; + CMD_STATUS status; + + pContext = s_vGetFreeContext(pDevice); + if (NULL == pContext) { + status = CMD_STATUS_RESOURCES; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ManagementSend TX...NO CONTEXT!\n"); + return status ; + } + + pTX_Buffer = (struct vnt_beacon_buffer *)&pContext->data[0]; + short_head = &pTX_Buffer->short_head; + + cbFrameBodySize = pPacket->cbPayloadLen; + + cbHeaderSize = sizeof(struct vnt_tx_short_buf_head); + + if (pDevice->byBBType == BB_TYPE_11A) { + wCurrentRate = RATE_6M; + + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(pDevice, cbFrameSize, wCurrentRate, + PK_TYPE_11A, &short_head->ab); + + /* Get Duration and TimeStampOff */ + short_head->duration = s_uGetDataDuration(pDevice, + PK_TYPE_11A, false); + short_head->time_stamp_off = + vnt_time_stamp_off(pDevice, wCurrentRate); + } else { + wCurrentRate = RATE_1M; + short_head->fifo_ctl |= FIFOCTL_11B; + + /* Get SignalField,ServiceField,Length */ + BBvCalculateParameter(pDevice, cbFrameSize, wCurrentRate, + PK_TYPE_11B, &short_head->ab); + + /* Get Duration and TimeStampOff */ + short_head->duration = s_uGetDataDuration(pDevice, + PK_TYPE_11B, false); + short_head->time_stamp_off = + vnt_time_stamp_off(pDevice, wCurrentRate); + } + + + /* Generate Beacon Header */ + pMACHeader = &pTX_Buffer->hdr; + + memcpy(pMACHeader, pPacket->p80211Header, pPacket->cbMPDULen); + + pMACHeader->duration_id = 0; + pMACHeader->seq_ctrl = cpu_to_le16(pDevice->wSeqCounter << 4); + pDevice->wSeqCounter++; + if (pDevice->wSeqCounter > 0x0fff) + pDevice->wSeqCounter = 0; + + cbReqCount = cbHeaderSize + WLAN_HDR_ADDR3_LEN + cbFrameBodySize; + + pTX_Buffer->tx_byte_count = cpu_to_le16((u16)cbReqCount); + pTX_Buffer->byPKTNO = (u8) (((wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F)); + pTX_Buffer->byType = 0x01; + + pContext->skb = NULL; + pContext->type = CONTEXT_MGMT_PACKET; + pContext->buf_len = (u16)cbReqCount + 4; /* USB header */ + + PIPEnsSendBulkOut(pDevice,pContext); + return CMD_STATUS_PENDING; + +} + +//TYPE_AC0DMA data tx +/* + * Description: + * Tx packet via AC0DMA(DMA1) + * + * Parameters: + * In: + * pDevice - Pointer to the adapter + * skb - Pointer to tx skb packet + * Out: + * void + * + * Return Value: NULL + */ + +int nsDMA_tx_packet(struct vnt_private *pDevice, struct sk_buff *skb) +{ + struct net_device_stats *pStats = &pDevice->stats; + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + struct vnt_tx_buffer *pTX_Buffer; + u32 BytesToWrite = 0, uHeaderLen = 0; + u32 uNodeIndex = 0; + u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80}; + u16 wAID; + u8 byPktType; + int bNeedEncryption = false; + PSKeyItem pTransmitKey = NULL; + int ii; + int bTKIP_UseGTK = false; + int bNeedDeAuth = false; + u8 *pbyBSSID; + int bNodeExist = false; + struct vnt_usb_send_context *pContext; + bool fConvertedPacket; + u32 status; + u16 wKeepRate = pDevice->wCurrentRate; + int bTxeapol_key = false; + + if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) { + + if (pDevice->uAssocCount == 0) { + dev_kfree_skb_irq(skb); + return 0; + } + + if (is_multicast_ether_addr((u8 *)(skb->data))) { + uNodeIndex = 0; + bNodeExist = true; + if (pMgmt->sNodeDBTable[0].bPSEnable) { + + skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skb); + pMgmt->sNodeDBTable[0].wEnQueueCnt++; + // set tx map + pMgmt->abyPSTxMap[0] |= byMask[0]; + return 0; + } + // multicast/broadcast data rate + + if (pDevice->byBBType != BB_TYPE_11A) + pDevice->wCurrentRate = RATE_2M; + else + pDevice->wCurrentRate = RATE_24M; + // long preamble type + pDevice->byPreambleType = PREAMBLE_SHORT; + + }else { + + if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(skb->data), &uNodeIndex)) { + + if (pMgmt->sNodeDBTable[uNodeIndex].bPSEnable) { + + skb_queue_tail(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue, skb); + + pMgmt->sNodeDBTable[uNodeIndex].wEnQueueCnt++; + // set tx map + wAID = pMgmt->sNodeDBTable[uNodeIndex].wAID; + pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7]; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Set:pMgmt->abyPSTxMap[%d]= %d\n", + (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]); + + return 0; + } + // AP rate decided from node + pDevice->wCurrentRate = pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate; + // tx preamble decided from node + + if (pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble) { + pDevice->byPreambleType = pDevice->byShortPreamble; + + }else { + pDevice->byPreambleType = PREAMBLE_LONG; + } + bNodeExist = true; + } + } + + if (bNodeExist == false) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Unknown STA not found in node DB \n"); + dev_kfree_skb_irq(skb); + return 0; + } + } + + memcpy(&pDevice->sTxEthHeader, skb->data, ETH_HLEN); + +//mike add:station mode check eapol-key challenge---> +{ + u8 Protocol_Version; //802.1x Authentication + u8 Packet_Type; //802.1x Authentication + u8 Descriptor_type; + u16 Key_info; + + Protocol_Version = skb->data[ETH_HLEN]; + Packet_Type = skb->data[ETH_HLEN+1]; + Descriptor_type = skb->data[ETH_HLEN+1+1+2]; + Key_info = (skb->data[ETH_HLEN+1+1+2+1] << 8)|(skb->data[ETH_HLEN+1+1+2+2]); + if (pDevice->sTxEthHeader.h_proto == cpu_to_be16(ETH_P_PAE)) { + /* 802.1x OR eapol-key challenge frame transfer */ + if (((Protocol_Version == 1) || (Protocol_Version == 2)) && + (Packet_Type == 3)) { + bTxeapol_key = true; + if(!(Key_info & BIT3) && //WPA or RSN group-key challenge + (Key_info & BIT8) && (Key_info & BIT9)) { //send 2/2 key + if(Descriptor_type==254) { + pDevice->fWPA_Authened = true; + PRINT_K("WPA "); + } + else { + pDevice->fWPA_Authened = true; + PRINT_K("WPA2(re-keying) "); + } + PRINT_K("Authentication completed!!\n"); + } + else if((Key_info & BIT3) && (Descriptor_type==2) && //RSN pairwise-key challenge + (Key_info & BIT8) && (Key_info & BIT9)) { + pDevice->fWPA_Authened = true; + PRINT_K("WPA2 Authentication completed!!\n"); + } + } + } +} +//mike add:station mode check eapol-key challenge<--- + + if (pDevice->bEncryptionEnable == true) { + bNeedEncryption = true; + // get Transmit key + do { + if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && + (pMgmt->eCurrState == WMAC_STATE_ASSOC)) { + 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) { + bTKIP_UseGTK = true; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n"); + break; + } + } else { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get PTK.\n"); + break; + } + }else if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { + /* TO_DS = 0 and FROM_DS = 0 --> 802.11 MAC Address1 */ + pbyBSSID = pDevice->sTxEthHeader.h_dest; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"IBSS Serach Key: \n"); + for (ii = 0; ii< 6; ii++) + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"%x \n", *(pbyBSSID+ii)); + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"\n"); + + // get pairwise key + if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, PAIRWISE_KEY, &pTransmitKey) == true) + break; + } + // get group key + pbyBSSID = pDevice->abyBroadcastAddr; + if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == false) { + pTransmitKey = NULL; + if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"IBSS and KEY is NULL. [%d]\n", pMgmt->eCurrMode); + } + else + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"NOT IBSS and KEY is NULL. [%d]\n", pMgmt->eCurrMode); + } else { + bTKIP_UseGTK = true; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n"); + } + } while(false); + } + + byPktType = (u8)pDevice->byPacketType; + + if (pDevice->bFixRate) { + if (pDevice->byBBType == BB_TYPE_11B) { + if (pDevice->uConnectionRate >= RATE_11M) { + pDevice->wCurrentRate = RATE_11M; + } else { + pDevice->wCurrentRate = (u16)pDevice->uConnectionRate; + } + } else { + if ((pDevice->byBBType == BB_TYPE_11A) && + (pDevice->uConnectionRate <= RATE_6M)) { + pDevice->wCurrentRate = RATE_6M; + } else { + if (pDevice->uConnectionRate >= RATE_54M) + pDevice->wCurrentRate = RATE_54M; + else + pDevice->wCurrentRate = (u16)pDevice->uConnectionRate; + } + } + } + else { + if (pDevice->op_mode == NL80211_IFTYPE_ADHOC) { + // Adhoc Tx rate decided from node DB + if (is_multicast_ether_addr(pDevice->sTxEthHeader.h_dest)) { + // Multicast use highest data rate + pDevice->wCurrentRate = pMgmt->sNodeDBTable[0].wTxDataRate; + // preamble type + pDevice->byPreambleType = pDevice->byShortPreamble; + } + else { + if (BSSbIsSTAInNodeDB(pDevice, &(pDevice->sTxEthHeader.h_dest[0]), &uNodeIndex)) { + pDevice->wCurrentRate = pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate; + if (pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble) { + pDevice->byPreambleType = pDevice->byShortPreamble; + + } + else { + pDevice->byPreambleType = PREAMBLE_LONG; + } + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Found Node Index is [%d] Tx Data Rate:[%d]\n",uNodeIndex, pDevice->wCurrentRate); + } + else { + if (pDevice->byBBType != BB_TYPE_11A) + pDevice->wCurrentRate = RATE_2M; + else + pDevice->wCurrentRate = RATE_24M; // refer to vMgrCreateOwnIBSS()'s + // abyCurrExtSuppRates[] + pDevice->byPreambleType = PREAMBLE_SHORT; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Not Found Node use highest basic Rate.....\n"); + } + } + } + if (pDevice->op_mode == NL80211_IFTYPE_STATION) { + // Infra STA rate decided from AP Node, index = 0 + pDevice->wCurrentRate = pMgmt->sNodeDBTable[0].wTxDataRate; + } + } + + if (pDevice->sTxEthHeader.h_proto == cpu_to_be16(ETH_P_PAE)) { + if (pDevice->byBBType != BB_TYPE_11A) { + pDevice->wCurrentRate = RATE_1M; + pDevice->byTopCCKBasicRate = RATE_1M; + pDevice->byTopOFDMBasicRate = RATE_6M; + } else { + pDevice->wCurrentRate = RATE_6M; + pDevice->byTopCCKBasicRate = RATE_1M; + pDevice->byTopOFDMBasicRate = RATE_6M; + } + } + + DBG_PRT(MSG_LEVEL_DEBUG, + KERN_INFO "dma_tx: pDevice->wCurrentRate = %d\n", + pDevice->wCurrentRate); + + if (wKeepRate != pDevice->wCurrentRate) { + bScheduleCommand((void *) pDevice, WLAN_CMD_SETPOWER, NULL); + } + + if (pDevice->wCurrentRate <= RATE_11M) { + byPktType = PK_TYPE_11B; + } + + if (bNeedEncryption == true) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ntohs Pkt Type=%04x\n", ntohs(pDevice->sTxEthHeader.h_proto)); + if ((pDevice->sTxEthHeader.h_proto) == cpu_to_be16(ETH_P_PAE)) { + bNeedEncryption = false; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Pkt Type=%04x\n", (pDevice->sTxEthHeader.h_proto)); + if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) { + if (pTransmitKey == NULL) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Don't Find TX KEY\n"); + } + else { + if (bTKIP_UseGTK == true) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"error: KEY is GTK!!~~\n"); + } + else { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Find PTK [%X]\n", + pTransmitKey->dwKeyIndex); + bNeedEncryption = true; + } + } + } + } + else { + + if (pTransmitKey == NULL) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"return no tx key\n"); + dev_kfree_skb_irq(skb); + pStats->tx_dropped++; + return STATUS_FAILURE; + } + } + } + + pContext = s_vGetFreeContext(pDevice); + if (!pContext) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG" pContext == NULL\n"); + dev_kfree_skb_irq(skb); + return STATUS_RESOURCES; + } + + pTX_Buffer = (struct vnt_tx_buffer *)&pContext->data[0]; + + fConvertedPacket = s_bPacketToWirelessUsb(pDevice, byPktType, + pTX_Buffer, bNeedEncryption, + skb->len, &pDevice->sTxEthHeader, + (u8 *)skb->data, pTransmitKey, uNodeIndex, + pDevice->wCurrentRate, + &uHeaderLen, &BytesToWrite + ); + + if (fConvertedPacket == false) { + pContext->in_use = false; + dev_kfree_skb_irq(skb); + return STATUS_FAILURE; + } + + if ( pDevice->bEnablePSMode == true ) { + if ( !pDevice->bPSModeTxBurst ) { + bScheduleCommand((void *) pDevice, + WLAN_CMD_MAC_DISPOWERSAVING, + NULL); + pDevice->bPSModeTxBurst = true; + } + } + + pTX_Buffer->byPKTNO = (u8) (((pDevice->wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F)); + pTX_Buffer->tx_byte_count = cpu_to_le16((u16)BytesToWrite); + + pContext->skb = skb; + pContext->type = CONTEXT_DATA_PACKET; + pContext->buf_len = (u16)BytesToWrite + 4 ; /* USB header */ + + s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F), + &pDevice->sTxEthHeader.h_dest[0], + (u16)(BytesToWrite-uHeaderLen), + pTX_Buffer->fifo_head.wFIFOCtl); + + status = PIPEnsSendBulkOut(pDevice,pContext); + + if (bNeedDeAuth == true) { + u16 wReason = WLAN_MGMT_REASON_MIC_FAILURE; + + bScheduleCommand((void *) pDevice, WLAN_CMD_DEAUTH, (u8 *) &wReason); + } + + if (status != STATUS_PENDING) { + pContext->in_use = false; + dev_kfree_skb_irq(skb); + return STATUS_FAILURE; + } + + + return 0; +} |