| /* |
| * 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 "card.h" |
| #include "mac.h" |
| #include "baseband.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_vFillRTSHead( |
| struct vnt_private *pDevice, |
| unsigned char byPktType, |
| void *pvRTS, |
| unsigned int cbFrameLength, |
| bool bNeedAck, |
| bool bDisCRC, |
| struct ieee80211_hdr *hdr, |
| unsigned short wCurrentRate, |
| unsigned char byFBOption |
| ); |
| |
| static |
| void |
| s_vGenerateTxParameter( |
| struct vnt_private *pDevice, |
| unsigned char byPktType, |
| struct vnt_tx_fifo_head *, |
| void *pvRrvTime, |
| void *pvRTS, |
| void *pvCTS, |
| unsigned int cbFrameSize, |
| bool bNeedACK, |
| unsigned int uDMAIdx, |
| void *psEthHeader, |
| unsigned short wCurrentRate |
| ); |
| |
| static unsigned int |
| s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType, |
| unsigned char *pbyTxBufferAddr, |
| unsigned int uDMAIdx, PSTxDesc pHeadTD, |
| unsigned int uNodeIndex); |
| |
| 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, |
| bool is_pspoll |
| ); |
| |
| /*--------------------- Export Variables --------------------------*/ |
| |
| 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 = false; |
| unsigned int uAckTime = 0, uNextPktTime = 0; |
| |
| if (uFragIdx == (uMACfragNum-1)) |
| bLastFrag = true; |
| |
| 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, |
| bool is_pspoll |
| ) |
| { |
| |
| 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); |
| |
| if (is_pspoll) { |
| __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15)); |
| |
| buf->duration_a = dur; |
| buf->duration_b = dur; |
| } else { |
| /* 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); |
| |
| if (is_pspoll) { |
| __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15)); |
| |
| buf->duration = dur; |
| } else { |
| /* 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); |
| |
| if (is_pspoll) { |
| __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15)); |
| |
| buf->duration = dur; |
| } else { |
| /* 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, |
| struct ieee80211_hdr *hdr, |
| 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); |
| |
| ether_addr_copy(buf->data.ra, hdr->addr1); |
| ether_addr_copy(buf->data.ta, hdr->addr2); |
| } 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); |
| |
| ether_addr_copy(buf->data.ra, hdr->addr1); |
| ether_addr_copy(buf->data.ta, hdr->addr2); |
| } /* 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); |
| |
| ether_addr_copy(buf->data.ra, hdr->addr1); |
| ether_addr_copy(buf->data.ta, hdr->addr2); |
| } 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); |
| |
| ether_addr_copy(buf->data.ra, hdr->addr1); |
| ether_addr_copy(buf->data.ta, hdr->addr2); |
| } |
| } 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); |
| |
| ether_addr_copy(buf->data.ra, hdr->addr1); |
| ether_addr_copy(buf->data.ta, hdr->addr2); |
| } |
| } |
| |
| 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; |
| |
| ether_addr_copy(buf->data.ra, |
| pDevice->abyCurrentNetAddr); |
| } 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; |
| ether_addr_copy(buf->data.ra, |
| pDevice->abyCurrentNetAddr); |
| } |
| } |
| } |
| |
| /*+ |
| * |
| * 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, |
| struct vnt_tx_fifo_head *tx_buffer_head, |
| void *pvRrvTime, |
| void *pvRTS, |
| void *pvCTS, |
| unsigned int cbFrameSize, |
| bool bNeedACK, |
| unsigned int uDMAIdx, |
| void *psEthHeader, |
| unsigned short wCurrentRate |
| ) |
| { |
| u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl); |
| bool bDisCRC = false; |
| unsigned char byFBOption = AUTO_FB_NONE; |
| |
| tx_buffer_head->current_rate = cpu_to_le16(wCurrentRate); |
| |
| if (fifo_ctl & FIFOCTL_CRCDIS) |
| bDisCRC = true; |
| |
| if (fifo_ctl & FIFOCTL_AUTO_FB_0) |
| byFBOption = AUTO_FB_0; |
| else if (fifo_ctl & FIFOCTL_AUTO_FB_1) |
| byFBOption = AUTO_FB_1; |
| |
| 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 unsigned int |
| s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType, |
| unsigned char *pbyTxBufferAddr, |
| unsigned int uDMAIdx, PSTxDesc pHeadTD, |
| unsigned int is_pspoll) |
| { |
| PDEVICE_TD_INFO td_info = pHeadTD->pTDInfo; |
| struct sk_buff *skb = td_info->skb; |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
| struct vnt_tx_fifo_head *tx_buffer_head = |
| (struct vnt_tx_fifo_head *)td_info->buf; |
| u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl); |
| unsigned int cbFrameSize; |
| __le16 uDuration; |
| unsigned char *pbyBuffer; |
| unsigned int uLength = 0; |
| unsigned int cbMICHDR = 0; |
| unsigned int uMACfragNum = 1; |
| unsigned int uPadding = 0; |
| unsigned int cbReqCount = 0; |
| bool bNeedACK = (bool)(fifo_ctl & FIFOCTL_NEEDACK); |
| bool bRTS = (bool)(fifo_ctl & FIFOCTL_RTS); |
| PSTxDesc ptdCurr; |
| unsigned int cbHeaderLength = 0; |
| void *pvRrvTime; |
| struct vnt_mic_hdr *pMICHDR; |
| void *pvRTS; |
| void *pvCTS; |
| void *pvTxDataHd; |
| unsigned short wTxBufSize; /* FFinfo size */ |
| unsigned char byFBOption = AUTO_FB_NONE; |
| |
| pvRrvTime = pMICHDR = pvRTS = pvCTS = pvTxDataHd = NULL; |
| |
| cbFrameSize = skb->len + 4; |
| |
| if (info->control.hw_key) { |
| switch (info->control.hw_key->cipher) { |
| case WLAN_CIPHER_SUITE_CCMP: |
| cbMICHDR = sizeof(struct vnt_mic_hdr); |
| default: |
| break; |
| } |
| |
| cbFrameSize += info->control.hw_key->icv_len; |
| |
| if (pDevice->byLocalID > REV_ID_VT3253_A1) { |
| /* MAC Header should be padding 0 to DW alignment. */ |
| uPadding = 4 - (ieee80211_get_hdrlen_from_skb(skb) % 4); |
| uPadding %= 4; |
| } |
| } |
| |
| /* |
| * Use for AUTO FALL BACK |
| */ |
| if (fifo_ctl & FIFOCTL_AUTO_FB_0) |
| byFBOption = AUTO_FB_0; |
| else if (fifo_ctl & 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 */ |
| } |
| |
| td_info->mic_hdr = pMICHDR; |
| |
| memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderLength - wTxBufSize)); |
| |
| /* Fill FIFO,RrvTime,RTS,and CTS */ |
| s_vGenerateTxParameter(pDevice, byPktType, tx_buffer_head, pvRrvTime, pvRTS, pvCTS, |
| cbFrameSize, bNeedACK, uDMAIdx, hdr, pDevice->wCurrentRate); |
| /* Fill DataHead */ |
| uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK, |
| 0, 0, uMACfragNum, byFBOption, pDevice->wCurrentRate, is_pspoll); |
| |
| hdr->duration_id = uDuration; |
| |
| cbReqCount = cbHeaderLength + uPadding + skb->len; |
| pbyBuffer = (unsigned char *)pHeadTD->pTDInfo->buf; |
| uLength = cbHeaderLength + uPadding; |
| |
| /* Copy the Packet into a tx Buffer */ |
| memcpy((pbyBuffer + uLength), skb->data, skb->len); |
| |
| ptdCurr = (PSTxDesc)pHeadTD; |
| |
| ptdCurr->pTDInfo->dwReqCount = cbReqCount; |
| ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength; |
| ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma; |
| |
| return cbHeaderLength; |
| } |
| |
| static void vnt_fill_txkey(struct ieee80211_hdr *hdr, u8 *key_buffer, |
| struct ieee80211_key_conf *tx_key, |
| struct sk_buff *skb, u16 payload_len, |
| struct vnt_mic_hdr *mic_hdr) |
| { |
| struct ieee80211_key_seq seq; |
| u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb)); |
| |
| /* strip header and icv len from payload */ |
| payload_len -= ieee80211_get_hdrlen_from_skb(skb); |
| payload_len -= tx_key->icv_len; |
| |
| switch (tx_key->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| memcpy(key_buffer, iv, 3); |
| memcpy(key_buffer + 3, tx_key->key, tx_key->keylen); |
| |
| if (tx_key->keylen == WLAN_KEY_LEN_WEP40) { |
| memcpy(key_buffer + 8, iv, 3); |
| memcpy(key_buffer + 11, |
| tx_key->key, WLAN_KEY_LEN_WEP40); |
| } |
| |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| ieee80211_get_tkip_p2k(tx_key, skb, key_buffer); |
| |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| |
| if (!mic_hdr) |
| return; |
| |
| mic_hdr->id = 0x59; |
| mic_hdr->payload_len = cpu_to_be16(payload_len); |
| ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2); |
| |
| ieee80211_get_key_tx_seq(tx_key, &seq); |
| |
| memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN); |
| |
| if (ieee80211_has_a4(hdr->frame_control)) |
| mic_hdr->hlen = cpu_to_be16(28); |
| else |
| mic_hdr->hlen = cpu_to_be16(22); |
| |
| ether_addr_copy(mic_hdr->addr1, hdr->addr1); |
| ether_addr_copy(mic_hdr->addr2, hdr->addr2); |
| ether_addr_copy(mic_hdr->addr3, hdr->addr3); |
| |
| mic_hdr->frame_control = cpu_to_le16( |
| le16_to_cpu(hdr->frame_control) & 0xc78f); |
| mic_hdr->seq_ctrl = cpu_to_le16( |
| le16_to_cpu(hdr->seq_ctrl) & 0xf); |
| |
| if (ieee80211_has_a4(hdr->frame_control)) |
| ether_addr_copy(mic_hdr->addr4, hdr->addr4); |
| |
| memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP); |
| |
| break; |
| default: |
| break; |
| } |
| } |
| |
| int vnt_generate_fifo_header(struct vnt_private *priv, u32 dma_idx, |
| PSTxDesc head_td, struct sk_buff *skb) |
| { |
| PDEVICE_TD_INFO td_info = head_td->pTDInfo; |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| struct ieee80211_tx_rate *tx_rate = &info->control.rates[0]; |
| struct ieee80211_rate *rate; |
| struct ieee80211_key_conf *tx_key; |
| struct ieee80211_hdr *hdr; |
| struct vnt_tx_fifo_head *tx_buffer_head = |
| (struct vnt_tx_fifo_head *)td_info->buf; |
| u16 tx_body_size = skb->len, current_rate; |
| u8 pkt_type; |
| bool is_pspoll = false; |
| |
| memset(tx_buffer_head, 0, sizeof(*tx_buffer_head)); |
| |
| hdr = (struct ieee80211_hdr *)(skb->data); |
| |
| rate = ieee80211_get_tx_rate(priv->hw, info); |
| |
| current_rate = rate->hw_value; |
| if (priv->wCurrentRate != current_rate && |
| !(priv->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) { |
| priv->wCurrentRate = current_rate; |
| |
| RFbSetPower(priv, priv->wCurrentRate, |
| priv->hw->conf.chandef.chan->hw_value); |
| } |
| |
| if (current_rate > RATE_11M) { |
| if (info->band == IEEE80211_BAND_5GHZ) { |
| pkt_type = PK_TYPE_11A; |
| } else { |
| if (tx_rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT) |
| pkt_type = PK_TYPE_11GB; |
| else |
| pkt_type = PK_TYPE_11GA; |
| } |
| } else { |
| pkt_type = PK_TYPE_11B; |
| } |
| |
| /*Set fifo controls */ |
| if (pkt_type == PK_TYPE_11A) |
| tx_buffer_head->fifo_ctl = 0; |
| else if (pkt_type == PK_TYPE_11B) |
| tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11B); |
| else if (pkt_type == PK_TYPE_11GB) |
| tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GB); |
| else if (pkt_type == PK_TYPE_11GA) |
| tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GA); |
| |
| /* generate interrupt */ |
| tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT); |
| |
| if (!ieee80211_is_data(hdr->frame_control)) { |
| tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_TMOEN); |
| tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_ISDMA0); |
| tx_buffer_head->time_stamp = |
| cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us); |
| } else { |
| tx_buffer_head->time_stamp = |
| cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us); |
| } |
| |
| if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) |
| tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_NEEDACK); |
| |
| if (ieee80211_has_retry(hdr->frame_control)) |
| tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LRETRY); |
| |
| if (tx_rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) |
| priv->byPreambleType = PREAMBLE_SHORT; |
| else |
| priv->byPreambleType = PREAMBLE_LONG; |
| |
| if (tx_rate->flags & IEEE80211_TX_RC_USE_RTS_CTS) |
| tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_RTS); |
| |
| if (ieee80211_has_a4(hdr->frame_control)) { |
| tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LHEAD); |
| priv->bLongHeader = true; |
| } |
| |
| if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER) |
| is_pspoll = true; |
| |
| tx_buffer_head->frag_ctl = |
| cpu_to_le16(ieee80211_get_hdrlen_from_skb(skb) << 10); |
| |
| if (info->control.hw_key) { |
| tx_key = info->control.hw_key; |
| |
| switch (info->control.hw_key->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_LEGACY); |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_TKIP); |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_AES); |
| default: |
| break; |
| } |
| } |
| |
| tx_buffer_head->current_rate = cpu_to_le16(current_rate); |
| |
| /* legacy rates TODO use ieee80211_tx_rate */ |
| if (current_rate >= RATE_18M && ieee80211_is_data(hdr->frame_control)) { |
| if (priv->byAutoFBCtrl == AUTO_FB_0) |
| tx_buffer_head->fifo_ctl |= |
| cpu_to_le16(FIFOCTL_AUTO_FB_0); |
| else if (priv->byAutoFBCtrl == AUTO_FB_1) |
| tx_buffer_head->fifo_ctl |= |
| cpu_to_le16(FIFOCTL_AUTO_FB_1); |
| |
| } |
| |
| tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG); |
| |
| s_cbFillTxBufHead(priv, pkt_type, (u8 *)tx_buffer_head, |
| dma_idx, head_td, is_pspoll); |
| |
| if (info->control.hw_key) { |
| tx_key = info->control.hw_key; |
| if (tx_key->keylen > 0) |
| vnt_fill_txkey(hdr, tx_buffer_head->tx_key, |
| tx_key, skb, tx_body_size, td_info->mic_hdr); |
| } |
| |
| return 0; |
| } |
| |
| static int vnt_beacon_xmit(struct vnt_private *priv, |
| struct sk_buff *skb) |
| { |
| struct vnt_tx_short_buf_head *short_head = |
| (struct vnt_tx_short_buf_head *)priv->tx_beacon_bufs; |
| struct ieee80211_mgmt *mgmt_hdr = (struct ieee80211_mgmt *) |
| (priv->tx_beacon_bufs + sizeof(*short_head)); |
| struct ieee80211_tx_info *info; |
| u32 frame_size = skb->len + 4; |
| u16 current_rate; |
| |
| memset(priv->tx_beacon_bufs, 0, sizeof(*short_head)); |
| |
| if (priv->byBBType == BB_TYPE_11A) { |
| current_rate = RATE_6M; |
| |
| /* Get SignalField,ServiceField,Length */ |
| vnt_get_phy_field(priv, frame_size, current_rate, |
| PK_TYPE_11A, &short_head->ab); |
| |
| /* Get Duration and TimeStampOff */ |
| short_head->duration = |
| cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B, |
| frame_size, PK_TYPE_11A, current_rate, |
| false, 0, 0, 1, AUTO_FB_NONE)); |
| |
| short_head->time_stamp_off = |
| vnt_time_stamp_off(priv, current_rate); |
| } else { |
| current_rate = RATE_1M; |
| short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_11B); |
| |
| /* Get SignalField,ServiceField,Length */ |
| vnt_get_phy_field(priv, frame_size, current_rate, |
| PK_TYPE_11B, &short_head->ab); |
| |
| /* Get Duration and TimeStampOff */ |
| short_head->duration = |
| cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B, |
| frame_size, PK_TYPE_11B, current_rate, |
| false, 0, 0, 1, AUTO_FB_NONE)); |
| |
| short_head->time_stamp_off = |
| vnt_time_stamp_off(priv, current_rate); |
| } |
| |
| short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT); |
| |
| /* Copy Beacon */ |
| memcpy(mgmt_hdr, skb->data, skb->len); |
| |
| /* time stamp always 0 */ |
| mgmt_hdr->u.beacon.timestamp = 0; |
| |
| info = IEEE80211_SKB_CB(skb); |
| if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)mgmt_hdr; |
| |
| hdr->duration_id = 0; |
| hdr->seq_ctrl = cpu_to_le16(priv->wSeqCounter << 4); |
| } |
| |
| priv->wSeqCounter++; |
| if (priv->wSeqCounter > 0x0fff) |
| priv->wSeqCounter = 0; |
| |
| priv->wBCNBufLen = sizeof(*short_head) + skb->len; |
| |
| MACvSetCurrBCNTxDescAddr(priv->PortOffset, priv->tx_beacon_dma); |
| |
| MACvSetCurrBCNLength(priv->PortOffset, priv->wBCNBufLen); |
| /* Set auto Transmit on */ |
| MACvRegBitsOn(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX); |
| /* Poll Transmit the adapter */ |
| MACvTransmitBCN(priv->PortOffset); |
| |
| return 0; |
| } |
| |
| int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif) |
| { |
| struct sk_buff *beacon; |
| |
| beacon = ieee80211_beacon_get(priv->hw, vif); |
| if (!beacon) |
| return -ENOMEM; |
| |
| if (vnt_beacon_xmit(priv, beacon)) { |
| ieee80211_free_txskb(priv->hw, beacon); |
| return -ENODEV; |
| } |
| |
| return 0; |
| } |
| |
| int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *conf) |
| { |
| VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST); |
| |
| VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN); |
| |
| CARDvSetFirstNextTBTT(priv, conf->beacon_int); |
| |
| CARDbSetBeaconPeriod(priv, conf->beacon_int); |
| |
| return vnt_beacon_make(priv, vif); |
| } |
