2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 * Purpose: handle WMAC/802.3/802.11 rx & tx functions
28 * s_vGenerateTxParameter - Generate tx dma required parameter.
29 * vGenerateMACHeader - Translate 802.3 to 802.11 header
30 * cbGetFragCount - Calculate fragment number count
31 * csBeacon_xmit - beacon tx function
32 * csMgmt_xmit - management tx function
33 * s_cbFillTxBufHead - fulfill tx dma buffer header
34 * s_uGetDataDuration - get tx data required duration
35 * s_uFillDataHead- fulfill tx data duration header
36 * s_uGetRTSCTSDuration- get rtx/cts required duration
37 * s_uGetRTSCTSRsvTime- get rts/cts reserved time
38 * s_uGetTxRsvTime- get frame reserved time
39 * s_vFillCTSHead- fulfill CTS ctl header
40 * s_vFillFragParameter- Set fragment ctl parameter.
41 * s_vFillRTSHead- fulfill RTS ctl header
42 * s_vFillTxKey- fulfill tx encrypt key
43 * s_vSWencryption- Software encrypt header
44 * vDMA0_tx_80211- tx 802.11 frame via dma0
45 * vGenerateFIFOHeader- Generate tx FIFO ctl header
58 /*--------------------- Static Definitions -------------------------*/
60 /*--------------------- Static Classes ----------------------------*/
62 /*--------------------- Static Variables --------------------------*/
64 /*--------------------- Static Functions --------------------------*/
66 /*--------------------- Static Definitions -------------------------*/
67 #define CRITICAL_PACKET_LEN 256 /* if packet size < 256 -> in-direct send
68 packet size >= 256 -> direct send */
70 static const unsigned short wTimeStampOff[2][MAX_RATE] = {
71 {384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23}, /* Long Preamble */
72 {384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23}, /* Short Preamble */
75 static const unsigned short wFB_Opt0[2][5] = {
76 {RATE_12M, RATE_18M, RATE_24M, RATE_36M, RATE_48M}, /* fallback_rate0 */
77 {RATE_12M, RATE_12M, RATE_18M, RATE_24M, RATE_36M}, /* fallback_rate1 */
79 static const unsigned short wFB_Opt1[2][5] = {
80 {RATE_12M, RATE_18M, RATE_24M, RATE_24M, RATE_36M}, /* fallback_rate0 */
81 {RATE_6M , RATE_6M, RATE_12M, RATE_12M, RATE_18M}, /* fallback_rate1 */
88 #define RTSDUR_BA_F0 4
89 #define RTSDUR_AA_F0 5
90 #define RTSDUR_BA_F1 6
91 #define RTSDUR_AA_F1 7
92 #define CTSDUR_BA_F0 8
93 #define CTSDUR_BA_F1 9
96 #define DATADUR_A_F0 12
97 #define DATADUR_A_F1 13
99 /*--------------------- Static Functions --------------------------*/
103 struct vnt_private *pDevice,
104 unsigned char byPktType,
106 unsigned int cbFrameLength,
109 struct ieee80211_hdr *hdr,
110 unsigned short wCurrentRate,
111 unsigned char byFBOption
116 s_vGenerateTxParameter(
117 struct vnt_private *pDevice,
118 unsigned char byPktType,
119 struct vnt_tx_fifo_head *,
123 unsigned int cbFrameSize,
125 unsigned int uDMAIdx,
127 unsigned short wCurrentRate
131 s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
132 unsigned char *pbyTxBufferAddr,
133 unsigned int uDMAIdx, PSTxDesc pHeadTD,
134 unsigned int uNodeIndex);
139 struct vnt_private *pDevice,
140 unsigned char byPktType,
142 unsigned int cbFrameLength,
143 unsigned int uDMAIdx,
145 unsigned int uFragIdx,
146 unsigned int cbLastFragmentSize,
147 unsigned int uMACfragNum,
148 unsigned char byFBOption,
149 unsigned short wCurrentRate,
153 /*--------------------- Export Variables --------------------------*/
155 static __le16 vnt_time_stamp_off(struct vnt_private *priv, u16 rate)
157 return cpu_to_le16(wTimeStampOff[priv->byPreambleType % 2]
161 /*byPktType : PK_TYPE_11A 0
169 struct vnt_private *pDevice,
170 unsigned char byPktType,
171 unsigned int cbFrameLength,
172 unsigned short wRate,
176 unsigned int uDataTime, uAckTime;
178 uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wRate);
179 if (byPktType == PK_TYPE_11B) /* llb,CCK mode */
180 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopCCKBasicRate);
181 else /* 11g 2.4G OFDM mode & 11a 5G OFDM mode */
182 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopOFDMBasicRate);
185 return uDataTime + pDevice->uSIFS + uAckTime;
190 static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type,
191 u32 frame_length, u16 rate, bool need_ack)
193 return cpu_to_le16((u16)s_uGetTxRsvTime(priv, pkt_type,
194 frame_length, rate, need_ack));
197 /* byFreqType: 0=>5GHZ 1=>2.4GHZ */
201 struct vnt_private *pDevice,
202 unsigned char byRTSRsvType,
203 unsigned char byPktType,
204 unsigned int cbFrameLength,
205 unsigned short wCurrentRate
208 unsigned int uRrvTime, uRTSTime, uCTSTime, uAckTime, uDataTime;
210 uRrvTime = uRTSTime = uCTSTime = uAckTime = uDataTime = 0;
212 uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wCurrentRate);
213 if (byRTSRsvType == 0) { /* RTSTxRrvTime_bb */
214 uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
215 uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
216 } else if (byRTSRsvType == 1) { /* RTSTxRrvTime_ba, only in 2.4GHZ */
217 uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
218 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
219 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
220 } else if (byRTSRsvType == 2) { /* RTSTxRrvTime_aa */
221 uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopOFDMBasicRate);
222 uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
223 } else if (byRTSRsvType == 3) { /* CTSTxRrvTime_ba, only in 2.4GHZ */
224 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
225 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
226 uRrvTime = uCTSTime + uAckTime + uDataTime + 2*pDevice->uSIFS;
227 return cpu_to_le16((u16)uRrvTime);
231 uRrvTime = uRTSTime + uCTSTime + uAckTime + uDataTime + 3*pDevice->uSIFS;
232 return cpu_to_le16((u16)uRrvTime);
235 /* byFreqType 0: 5GHz, 1:2.4Ghz */
239 struct vnt_private *pDevice,
240 unsigned char byDurType,
241 unsigned int cbFrameLength,
242 unsigned char byPktType,
243 unsigned short wRate,
245 unsigned int uFragIdx,
246 unsigned int cbLastFragmentSize,
247 unsigned int uMACfragNum,
248 unsigned char byFBOption
251 bool bLastFrag = false;
252 unsigned int uAckTime = 0, uNextPktTime = 0;
254 if (uFragIdx == (uMACfragNum-1))
258 case DATADUR_B: /* DATADUR_B */
259 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
261 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
262 return pDevice->uSIFS + uAckTime;
266 } else {/* First Frag or Mid Frag */
267 if (uFragIdx == (uMACfragNum-2))
268 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
270 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
273 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
274 return pDevice->uSIFS + uAckTime + uNextPktTime;
276 return pDevice->uSIFS + uNextPktTime;
281 case DATADUR_A: /* DATADUR_A */
282 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
284 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
285 return pDevice->uSIFS + uAckTime;
289 } else {/* First Frag or Mid Frag */
290 if (uFragIdx == (uMACfragNum-2))
291 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
293 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
296 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
297 return pDevice->uSIFS + uAckTime + uNextPktTime;
299 return pDevice->uSIFS + uNextPktTime;
304 case DATADUR_A_F0: /* DATADUR_A_F0 */
305 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
307 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
308 return pDevice->uSIFS + uAckTime;
312 } else { /* First Frag or Mid Frag */
313 if (byFBOption == AUTO_FB_0) {
314 if (wRate < RATE_18M)
316 else if (wRate > RATE_54M)
319 if (uFragIdx == (uMACfragNum-2))
320 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
322 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
324 } else { /* (byFBOption == AUTO_FB_1) */
325 if (wRate < RATE_18M)
327 else if (wRate > RATE_54M)
330 if (uFragIdx == (uMACfragNum-2))
331 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
333 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
338 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
339 return pDevice->uSIFS + uAckTime + uNextPktTime;
341 return pDevice->uSIFS + uNextPktTime;
346 case DATADUR_A_F1: /* DATADUR_A_F1 */
347 if (((uMACfragNum == 1)) || bLastFrag) { /* Non Frag or Last Frag */
349 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
350 return pDevice->uSIFS + uAckTime;
354 } else { /* First Frag or Mid Frag */
355 if (byFBOption == AUTO_FB_0) {
356 if (wRate < RATE_18M)
358 else if (wRate > RATE_54M)
361 if (uFragIdx == (uMACfragNum-2))
362 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
364 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
366 } else { /* (byFBOption == AUTO_FB_1) */
367 if (wRate < RATE_18M)
369 else if (wRate > RATE_54M)
372 if (uFragIdx == (uMACfragNum-2))
373 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
375 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
378 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
379 return pDevice->uSIFS + uAckTime + uNextPktTime;
381 return pDevice->uSIFS + uNextPktTime;
394 /* byFreqType: 0=>5GHZ 1=>2.4GHZ */
397 s_uGetRTSCTSDuration(
398 struct vnt_private *pDevice,
399 unsigned char byDurType,
400 unsigned int cbFrameLength,
401 unsigned char byPktType,
402 unsigned short wRate,
404 unsigned char byFBOption
407 unsigned int uCTSTime = 0, uDurTime = 0;
410 case RTSDUR_BB: /* RTSDuration_bb */
411 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
412 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
415 case RTSDUR_BA: /* RTSDuration_ba */
416 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
417 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
420 case RTSDUR_AA: /* RTSDuration_aa */
421 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
422 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
425 case CTSDUR_BA: /* CTSDuration_ba */
426 uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
429 case RTSDUR_BA_F0: /* RTSDuration_ba_f0 */
430 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
431 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
432 uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
433 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
434 uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
438 case RTSDUR_AA_F0: /* RTSDuration_aa_f0 */
439 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
440 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
441 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
442 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
443 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
447 case RTSDUR_BA_F1: /* RTSDuration_ba_f1 */
448 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
449 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
450 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
451 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
452 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
456 case RTSDUR_AA_F1: /* RTSDuration_aa_f1 */
457 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
458 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
459 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
460 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
461 uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
465 case CTSDUR_BA_F0: /* CTSDuration_ba_f0 */
466 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
467 uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
468 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
469 uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
473 case CTSDUR_BA_F1: /* CTSDuration_ba_f1 */
474 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
475 uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
476 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
477 uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
485 return cpu_to_le16((u16)uDurTime);
491 struct vnt_private *pDevice,
492 unsigned char byPktType,
494 unsigned int cbFrameLength,
495 unsigned int uDMAIdx,
497 unsigned int uFragIdx,
498 unsigned int cbLastFragmentSize,
499 unsigned int uMACfragNum,
500 unsigned char byFBOption,
501 unsigned short wCurrentRate,
506 if (pTxDataHead == NULL)
510 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
511 if (byFBOption == AUTO_FB_NONE) {
512 struct vnt_tx_datahead_g *buf = pTxDataHead;
513 /* Get SignalField, ServiceField & Length */
514 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
517 vnt_get_phy_field(pDevice, cbFrameLength,
518 pDevice->byTopCCKBasicRate,
519 PK_TYPE_11B, &buf->b);
522 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
524 buf->duration_a = dur;
525 buf->duration_b = dur;
527 /* Get Duration and TimeStamp */
529 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength,
530 byPktType, wCurrentRate, bNeedAck, uFragIdx,
531 cbLastFragmentSize, uMACfragNum,
534 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength,
535 PK_TYPE_11B, pDevice->byTopCCKBasicRate,
536 bNeedAck, uFragIdx, cbLastFragmentSize,
537 uMACfragNum, byFBOption));
540 buf->time_stamp_off_a = vnt_time_stamp_off(pDevice, wCurrentRate);
541 buf->time_stamp_off_b = vnt_time_stamp_off(pDevice, pDevice->byTopCCKBasicRate);
543 return buf->duration_a;
546 struct vnt_tx_datahead_g_fb *buf = pTxDataHead;
547 /* Get SignalField, ServiceField & Length */
548 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
551 vnt_get_phy_field(pDevice, cbFrameLength,
552 pDevice->byTopCCKBasicRate,
553 PK_TYPE_11B, &buf->b);
554 /* Get Duration and TimeStamp */
555 buf->duration_a = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
556 wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
557 buf->duration_b = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength, PK_TYPE_11B,
558 pDevice->byTopCCKBasicRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
559 buf->duration_a_f0 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F0, cbFrameLength, byPktType,
560 wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
561 buf->duration_a_f1 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F1, cbFrameLength, byPktType,
562 wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
564 buf->time_stamp_off_a = vnt_time_stamp_off(pDevice, wCurrentRate);
565 buf->time_stamp_off_b = vnt_time_stamp_off(pDevice, pDevice->byTopCCKBasicRate);
567 return buf->duration_a;
568 } /* if (byFBOption == AUTO_FB_NONE) */
569 } else if (byPktType == PK_TYPE_11A) {
570 if ((byFBOption != AUTO_FB_NONE)) {
572 struct vnt_tx_datahead_a_fb *buf = pTxDataHead;
573 /* Get SignalField, ServiceField & Length */
574 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
577 /* Get Duration and TimeStampOff */
578 buf->duration = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
579 wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
580 buf->duration_f0 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F0, cbFrameLength, byPktType,
581 wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
582 buf->duration_f1 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F1, cbFrameLength, byPktType,
583 wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
584 buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
585 return buf->duration;
587 struct vnt_tx_datahead_ab *buf = pTxDataHead;
588 /* Get SignalField, ServiceField & Length */
589 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
590 byPktType, &buf->ab);
593 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
597 /* Get Duration and TimeStampOff */
599 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
600 wCurrentRate, bNeedAck, uFragIdx,
601 cbLastFragmentSize, uMACfragNum,
605 buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
606 return buf->duration;
609 struct vnt_tx_datahead_ab *buf = pTxDataHead;
610 /* Get SignalField, ServiceField & Length */
611 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
612 byPktType, &buf->ab);
615 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
619 /* Get Duration and TimeStampOff */
621 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength, byPktType,
622 wCurrentRate, bNeedAck, uFragIdx,
623 cbLastFragmentSize, uMACfragNum,
627 buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
628 return buf->duration;
637 struct vnt_private *pDevice,
638 unsigned char byPktType,
640 unsigned int cbFrameLength,
643 struct ieee80211_hdr *hdr,
644 unsigned short wCurrentRate,
645 unsigned char byFBOption
648 unsigned int uRTSFrameLen = 20;
654 /* When CRCDIS bit is on, H/W forgot to generate FCS for RTS frame,
655 in this case we need to decrease its length by 4. */
659 /* Note: So far RTSHead dosen't appear in ATIM & Beacom DMA, so we don't need to take them into account.
660 Otherwise, we need to modify codes for them. */
661 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
662 if (byFBOption == AUTO_FB_NONE) {
663 struct vnt_rts_g *buf = pvRTS;
664 /* Get SignalField, ServiceField & Length */
665 vnt_get_phy_field(pDevice, uRTSFrameLen,
666 pDevice->byTopCCKBasicRate,
667 PK_TYPE_11B, &buf->b);
669 vnt_get_phy_field(pDevice, uRTSFrameLen,
670 pDevice->byTopOFDMBasicRate,
674 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
675 cbFrameLength, PK_TYPE_11B,
676 pDevice->byTopCCKBasicRate,
677 bNeedAck, byFBOption);
679 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
680 cbFrameLength, byPktType,
681 wCurrentRate, bNeedAck,
684 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
685 cbFrameLength, byPktType,
686 wCurrentRate, bNeedAck,
689 buf->data.duration = buf->duration_aa;
690 /* Get RTS Frame body */
691 buf->data.frame_control =
692 cpu_to_le16(IEEE80211_FTYPE_CTL |
693 IEEE80211_STYPE_RTS);
695 ether_addr_copy(buf->data.ra, hdr->addr1);
696 ether_addr_copy(buf->data.ta, hdr->addr2);
698 struct vnt_rts_g_fb *buf = pvRTS;
699 /* Get SignalField, ServiceField & Length */
700 vnt_get_phy_field(pDevice, uRTSFrameLen,
701 pDevice->byTopCCKBasicRate,
702 PK_TYPE_11B, &buf->b);
704 vnt_get_phy_field(pDevice, uRTSFrameLen,
705 pDevice->byTopOFDMBasicRate,
709 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
710 cbFrameLength, PK_TYPE_11B,
711 pDevice->byTopCCKBasicRate,
712 bNeedAck, byFBOption);
714 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
715 cbFrameLength, byPktType,
716 wCurrentRate, bNeedAck,
719 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
720 cbFrameLength, byPktType,
721 wCurrentRate, bNeedAck,
723 buf->rts_duration_ba_f0 =
724 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F0,
725 cbFrameLength, byPktType,
726 wCurrentRate, bNeedAck,
728 buf->rts_duration_aa_f0 =
729 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
730 cbFrameLength, byPktType,
731 wCurrentRate, bNeedAck,
733 buf->rts_duration_ba_f1 =
734 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F1,
735 cbFrameLength, byPktType,
736 wCurrentRate, bNeedAck,
738 buf->rts_duration_aa_f1 =
739 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
740 cbFrameLength, byPktType,
741 wCurrentRate, bNeedAck,
743 buf->data.duration = buf->duration_aa;
744 /* Get RTS Frame body */
745 buf->data.frame_control =
746 cpu_to_le16(IEEE80211_FTYPE_CTL |
747 IEEE80211_STYPE_RTS);
749 ether_addr_copy(buf->data.ra, hdr->addr1);
750 ether_addr_copy(buf->data.ta, hdr->addr2);
751 } /* if (byFBOption == AUTO_FB_NONE) */
752 } else if (byPktType == PK_TYPE_11A) {
753 if (byFBOption == AUTO_FB_NONE) {
754 struct vnt_rts_ab *buf = pvRTS;
755 /* Get SignalField, ServiceField & Length */
756 vnt_get_phy_field(pDevice, uRTSFrameLen,
757 pDevice->byTopOFDMBasicRate,
758 byPktType, &buf->ab);
761 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
762 cbFrameLength, byPktType,
763 wCurrentRate, bNeedAck,
765 buf->data.duration = buf->duration;
766 /* Get RTS Frame body */
767 buf->data.frame_control =
768 cpu_to_le16(IEEE80211_FTYPE_CTL |
769 IEEE80211_STYPE_RTS);
771 ether_addr_copy(buf->data.ra, hdr->addr1);
772 ether_addr_copy(buf->data.ta, hdr->addr2);
774 struct vnt_rts_a_fb *buf = pvRTS;
775 /* Get SignalField, ServiceField & Length */
776 vnt_get_phy_field(pDevice, uRTSFrameLen,
777 pDevice->byTopOFDMBasicRate,
781 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
782 cbFrameLength, byPktType,
783 wCurrentRate, bNeedAck,
785 buf->rts_duration_f0 =
786 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
787 cbFrameLength, byPktType,
788 wCurrentRate, bNeedAck,
790 buf->rts_duration_f1 =
791 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
792 cbFrameLength, byPktType,
793 wCurrentRate, bNeedAck,
795 buf->data.duration = buf->duration;
796 /* Get RTS Frame body */
797 buf->data.frame_control =
798 cpu_to_le16(IEEE80211_FTYPE_CTL |
799 IEEE80211_STYPE_RTS);
801 ether_addr_copy(buf->data.ra, hdr->addr1);
802 ether_addr_copy(buf->data.ta, hdr->addr2);
804 } else if (byPktType == PK_TYPE_11B) {
805 struct vnt_rts_ab *buf = pvRTS;
806 /* Get SignalField, ServiceField & Length */
807 vnt_get_phy_field(pDevice, uRTSFrameLen,
808 pDevice->byTopCCKBasicRate,
809 PK_TYPE_11B, &buf->ab);
812 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB, cbFrameLength,
813 byPktType, wCurrentRate, bNeedAck,
816 buf->data.duration = buf->duration;
817 /* Get RTS Frame body */
818 buf->data.frame_control =
819 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
821 ether_addr_copy(buf->data.ra, hdr->addr1);
822 ether_addr_copy(buf->data.ta, hdr->addr2);
829 struct vnt_private *pDevice,
830 unsigned int uDMAIdx,
831 unsigned char byPktType,
833 unsigned int cbFrameLength,
836 unsigned short wCurrentRate,
837 unsigned char byFBOption
840 unsigned int uCTSFrameLen = 14;
846 /* When CRCDIS bit is on, H/W forgot to generate FCS for CTS frame,
847 in this case we need to decrease its length by 4. */
851 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
852 if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) {
854 struct vnt_cts_fb *buf = pvCTS;
855 /* Get SignalField, ServiceField & Length */
856 vnt_get_phy_field(pDevice, uCTSFrameLen,
857 pDevice->byTopCCKBasicRate,
858 PK_TYPE_11B, &buf->b);
861 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
862 cbFrameLength, byPktType,
863 wCurrentRate, bNeedAck,
866 /* Get CTSDuration_ba_f0 */
867 buf->cts_duration_ba_f0 =
868 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F0,
869 cbFrameLength, byPktType,
870 wCurrentRate, bNeedAck,
873 /* Get CTSDuration_ba_f1 */
874 buf->cts_duration_ba_f1 =
875 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F1,
876 cbFrameLength, byPktType,
877 wCurrentRate, bNeedAck,
880 /* Get CTS Frame body */
881 buf->data.duration = buf->duration_ba;
883 buf->data.frame_control =
884 cpu_to_le16(IEEE80211_FTYPE_CTL |
885 IEEE80211_STYPE_CTS);
887 buf->reserved2 = 0x0;
889 ether_addr_copy(buf->data.ra,
890 pDevice->abyCurrentNetAddr);
891 } else { /* if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) */
892 struct vnt_cts *buf = pvCTS;
893 /* Get SignalField, ServiceField & Length */
894 vnt_get_phy_field(pDevice, uCTSFrameLen,
895 pDevice->byTopCCKBasicRate,
896 PK_TYPE_11B, &buf->b);
898 /* Get CTSDuration_ba */
900 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
901 cbFrameLength, byPktType,
902 wCurrentRate, bNeedAck,
905 /* Get CTS Frame body */
906 buf->data.duration = buf->duration_ba;
908 buf->data.frame_control =
909 cpu_to_le16(IEEE80211_FTYPE_CTL |
910 IEEE80211_STYPE_CTS);
912 buf->reserved2 = 0x0;
913 ether_addr_copy(buf->data.ra,
914 pDevice->abyCurrentNetAddr);
922 * Generate FIFO control for MAC & Baseband controller
926 * pDevice - Pointer to adapter
927 * pTxDataHead - Transmit Data Buffer
928 * pTxBufHead - pTxBufHead
929 * pvRrvTime - pvRrvTime
932 * cbFrameSize - Transmit Data Length (Hdr+Payload+FCS)
933 * bNeedACK - If need ACK
934 * uDescIdx - Desc Index
941 * unsigned int cbFrameSize, Hdr+Payload+FCS */
944 s_vGenerateTxParameter(
945 struct vnt_private *pDevice,
946 unsigned char byPktType,
947 struct vnt_tx_fifo_head *tx_buffer_head,
951 unsigned int cbFrameSize,
953 unsigned int uDMAIdx,
955 unsigned short wCurrentRate
958 u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl);
959 bool bDisCRC = false;
960 unsigned char byFBOption = AUTO_FB_NONE;
962 tx_buffer_head->current_rate = cpu_to_le16(wCurrentRate);
964 if (fifo_ctl & FIFOCTL_CRCDIS)
967 if (fifo_ctl & FIFOCTL_AUTO_FB_0)
968 byFBOption = AUTO_FB_0;
969 else if (fifo_ctl & FIFOCTL_AUTO_FB_1)
970 byFBOption = AUTO_FB_1;
975 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
976 if (pvRTS != NULL) { /* RTS_need
978 struct vnt_rrv_time_rts *buf = pvRrvTime;
980 buf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
981 buf->rts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 1, byPktType, cbFrameSize, wCurrentRate);
982 buf->rts_rrv_time_bb = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
983 buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
984 buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
986 s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
987 } else {/* RTS_needless, PCF mode */
988 struct vnt_rrv_time_cts *buf = pvRrvTime;
990 buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
991 buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
992 buf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3, byPktType, cbFrameSize, wCurrentRate);
995 s_vFillCTSHead(pDevice, uDMAIdx, byPktType, pvCTS, cbFrameSize, bNeedACK, bDisCRC, wCurrentRate, byFBOption);
997 } else if (byPktType == PK_TYPE_11A) {
998 if (pvRTS != NULL) {/* RTS_need, non PCF mode */
999 struct vnt_rrv_time_ab *buf = pvRrvTime;
1001 buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
1002 buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
1005 s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
1006 } else if (pvRTS == NULL) {/* RTS_needless, non PCF mode */
1007 struct vnt_rrv_time_ab *buf = pvRrvTime;
1009 buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK);
1011 } else if (byPktType == PK_TYPE_11B) {
1012 if ((pvRTS != NULL)) {/* RTS_need, non PCF mode */
1013 struct vnt_rrv_time_ab *buf = pvRrvTime;
1015 buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
1016 buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
1019 s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
1020 } else { /* RTS_needless, non PCF mode */
1021 struct vnt_rrv_time_ab *buf = pvRrvTime;
1023 buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
1029 s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
1030 unsigned char *pbyTxBufferAddr,
1031 unsigned int uDMAIdx, PSTxDesc pHeadTD,
1032 unsigned int is_pspoll)
1034 PDEVICE_TD_INFO td_info = pHeadTD->pTDInfo;
1035 struct sk_buff *skb = td_info->skb;
1036 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1037 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1038 struct vnt_tx_fifo_head *tx_buffer_head =
1039 (struct vnt_tx_fifo_head *)td_info->buf;
1040 u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl);
1041 unsigned int cbFrameSize;
1043 unsigned char *pbyBuffer;
1044 unsigned int uLength = 0;
1045 unsigned int cbMICHDR = 0;
1046 unsigned int uMACfragNum = 1;
1047 unsigned int uPadding = 0;
1048 unsigned int cbReqCount = 0;
1049 bool bNeedACK = (bool)(fifo_ctl & FIFOCTL_NEEDACK);
1050 bool bRTS = (bool)(fifo_ctl & FIFOCTL_RTS);
1052 unsigned int cbHeaderLength = 0;
1054 struct vnt_mic_hdr *pMICHDR;
1058 unsigned short wTxBufSize; /* FFinfo size */
1059 unsigned char byFBOption = AUTO_FB_NONE;
1061 pvRrvTime = pMICHDR = pvRTS = pvCTS = pvTxDataHd = NULL;
1063 cbFrameSize = skb->len + 4;
1065 if (info->control.hw_key) {
1066 switch (info->control.hw_key->cipher) {
1067 case WLAN_CIPHER_SUITE_CCMP:
1068 cbMICHDR = sizeof(struct vnt_mic_hdr);
1073 cbFrameSize += info->control.hw_key->icv_len;
1075 if (pDevice->byLocalID > REV_ID_VT3253_A1) {
1076 /* MAC Header should be padding 0 to DW alignment. */
1077 uPadding = 4 - (ieee80211_get_hdrlen_from_skb(skb) % 4);
1083 * Use for AUTO FALL BACK
1085 if (fifo_ctl & FIFOCTL_AUTO_FB_0)
1086 byFBOption = AUTO_FB_0;
1087 else if (fifo_ctl & FIFOCTL_AUTO_FB_1)
1088 byFBOption = AUTO_FB_1;
1091 /* Set RrvTime/RTS/CTS Buffer */
1092 wTxBufSize = sizeof(STxBufHead);
1093 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {/* 802.11g packet */
1095 if (byFBOption == AUTO_FB_NONE) {
1096 if (bRTS == true) {/* RTS_need */
1097 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1098 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
1099 pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
1101 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1102 cbMICHDR + sizeof(struct vnt_rts_g));
1103 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1104 cbMICHDR + sizeof(struct vnt_rts_g) +
1105 sizeof(struct vnt_tx_datahead_g);
1106 } else { /* RTS_needless */
1107 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1108 pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
1110 pvCTS = (void *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
1111 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
1112 sizeof(struct vnt_rrv_time_cts) + cbMICHDR + sizeof(struct vnt_cts));
1113 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
1114 cbMICHDR + sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
1117 /* Auto Fall Back */
1118 if (bRTS == true) {/* RTS_need */
1119 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1120 pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
1121 pvRTS = (void *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
1123 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1124 cbMICHDR + sizeof(struct vnt_rts_g_fb));
1125 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1126 cbMICHDR + sizeof(struct vnt_rts_g_fb) + sizeof(struct vnt_tx_datahead_g_fb);
1127 } else { /* RTS_needless */
1128 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1129 pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
1131 pvCTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
1132 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
1133 cbMICHDR + sizeof(struct vnt_cts_fb));
1134 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
1135 cbMICHDR + sizeof(struct vnt_cts_fb) + sizeof(struct vnt_tx_datahead_g_fb);
1137 } /* Auto Fall Back */
1138 } else {/* 802.11a/b packet */
1140 if (byFBOption == AUTO_FB_NONE) {
1142 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1143 pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1144 pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1146 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
1147 sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_ab));
1148 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1149 cbMICHDR + sizeof(struct vnt_rts_ab) + sizeof(struct vnt_tx_datahead_ab);
1150 } else { /* RTS_needless, need MICHDR */
1151 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1152 pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1155 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1156 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1157 cbMICHDR + sizeof(struct vnt_tx_datahead_ab);
1160 /* Auto Fall Back */
1161 if (bRTS == true) { /* RTS_need */
1162 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1163 pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1164 pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1166 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
1167 sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_a_fb));
1168 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1169 cbMICHDR + sizeof(struct vnt_rts_a_fb) + sizeof(struct vnt_tx_datahead_a_fb);
1170 } else { /* RTS_needless */
1171 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1172 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1175 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1176 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1177 cbMICHDR + sizeof(struct vnt_tx_datahead_a_fb);
1179 } /* Auto Fall Back */
1182 td_info->mic_hdr = pMICHDR;
1184 memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderLength - wTxBufSize));
1186 /* Fill FIFO,RrvTime,RTS,and CTS */
1187 s_vGenerateTxParameter(pDevice, byPktType, tx_buffer_head, pvRrvTime, pvRTS, pvCTS,
1188 cbFrameSize, bNeedACK, uDMAIdx, hdr, pDevice->wCurrentRate);
1190 uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
1191 0, 0, uMACfragNum, byFBOption, pDevice->wCurrentRate, is_pspoll);
1193 hdr->duration_id = uDuration;
1195 cbReqCount = cbHeaderLength + uPadding + skb->len;
1196 pbyBuffer = (unsigned char *)pHeadTD->pTDInfo->buf;
1197 uLength = cbHeaderLength + uPadding;
1199 /* Copy the Packet into a tx Buffer */
1200 memcpy((pbyBuffer + uLength), skb->data, skb->len);
1202 ptdCurr = (PSTxDesc)pHeadTD;
1204 ptdCurr->pTDInfo->dwReqCount = cbReqCount;
1205 ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
1206 ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma;
1208 return cbHeaderLength;
1211 static void vnt_fill_txkey(struct ieee80211_hdr *hdr, u8 *key_buffer,
1212 struct ieee80211_key_conf *tx_key,
1213 struct sk_buff *skb, u16 payload_len,
1214 struct vnt_mic_hdr *mic_hdr)
1216 struct ieee80211_key_seq seq;
1217 u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
1219 /* strip header and icv len from payload */
1220 payload_len -= ieee80211_get_hdrlen_from_skb(skb);
1221 payload_len -= tx_key->icv_len;
1223 switch (tx_key->cipher) {
1224 case WLAN_CIPHER_SUITE_WEP40:
1225 case WLAN_CIPHER_SUITE_WEP104:
1226 memcpy(key_buffer, iv, 3);
1227 memcpy(key_buffer + 3, tx_key->key, tx_key->keylen);
1229 if (tx_key->keylen == WLAN_KEY_LEN_WEP40) {
1230 memcpy(key_buffer + 8, iv, 3);
1231 memcpy(key_buffer + 11,
1232 tx_key->key, WLAN_KEY_LEN_WEP40);
1236 case WLAN_CIPHER_SUITE_TKIP:
1237 ieee80211_get_tkip_p2k(tx_key, skb, key_buffer);
1240 case WLAN_CIPHER_SUITE_CCMP:
1246 mic_hdr->payload_len = cpu_to_be16(payload_len);
1247 ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
1249 ieee80211_get_key_tx_seq(tx_key, &seq);
1251 memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1253 if (ieee80211_has_a4(hdr->frame_control))
1254 mic_hdr->hlen = cpu_to_be16(28);
1256 mic_hdr->hlen = cpu_to_be16(22);
1258 ether_addr_copy(mic_hdr->addr1, hdr->addr1);
1259 ether_addr_copy(mic_hdr->addr2, hdr->addr2);
1260 ether_addr_copy(mic_hdr->addr3, hdr->addr3);
1262 mic_hdr->frame_control = cpu_to_le16(
1263 le16_to_cpu(hdr->frame_control) & 0xc78f);
1264 mic_hdr->seq_ctrl = cpu_to_le16(
1265 le16_to_cpu(hdr->seq_ctrl) & 0xf);
1267 if (ieee80211_has_a4(hdr->frame_control))
1268 ether_addr_copy(mic_hdr->addr4, hdr->addr4);
1270 memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP);
1278 int vnt_generate_fifo_header(struct vnt_private *priv, u32 dma_idx,
1279 PSTxDesc head_td, struct sk_buff *skb)
1281 PDEVICE_TD_INFO td_info = head_td->pTDInfo;
1282 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1283 struct ieee80211_tx_rate *tx_rate = &info->control.rates[0];
1284 struct ieee80211_rate *rate;
1285 struct ieee80211_key_conf *tx_key;
1286 struct ieee80211_hdr *hdr;
1287 struct vnt_tx_fifo_head *tx_buffer_head =
1288 (struct vnt_tx_fifo_head *)td_info->buf;
1289 u16 tx_body_size = skb->len, current_rate;
1291 bool is_pspoll = false;
1293 memset(tx_buffer_head, 0, sizeof(*tx_buffer_head));
1295 hdr = (struct ieee80211_hdr *)(skb->data);
1297 rate = ieee80211_get_tx_rate(priv->hw, info);
1299 current_rate = rate->hw_value;
1300 if (priv->wCurrentRate != current_rate &&
1301 !(priv->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
1302 priv->wCurrentRate = current_rate;
1304 RFbSetPower(priv, priv->wCurrentRate,
1305 priv->hw->conf.chandef.chan->hw_value);
1308 if (current_rate > RATE_11M) {
1309 if (info->band == IEEE80211_BAND_5GHZ) {
1310 pkt_type = PK_TYPE_11A;
1312 if (tx_rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1313 pkt_type = PK_TYPE_11GB;
1315 pkt_type = PK_TYPE_11GA;
1318 pkt_type = PK_TYPE_11B;
1321 /*Set fifo controls */
1322 if (pkt_type == PK_TYPE_11A)
1323 tx_buffer_head->fifo_ctl = 0;
1324 else if (pkt_type == PK_TYPE_11B)
1325 tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11B);
1326 else if (pkt_type == PK_TYPE_11GB)
1327 tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GB);
1328 else if (pkt_type == PK_TYPE_11GA)
1329 tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GA);
1331 /* generate interrupt */
1332 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
1334 if (!ieee80211_is_data(hdr->frame_control)) {
1335 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_TMOEN);
1336 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_ISDMA0);
1337 tx_buffer_head->time_stamp =
1338 cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us);
1340 tx_buffer_head->time_stamp =
1341 cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us);
1344 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
1345 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_NEEDACK);
1347 if (ieee80211_has_retry(hdr->frame_control))
1348 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LRETRY);
1350 if (tx_rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1351 priv->byPreambleType = PREAMBLE_SHORT;
1353 priv->byPreambleType = PREAMBLE_LONG;
1355 if (tx_rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1356 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_RTS);
1358 if (ieee80211_has_a4(hdr->frame_control)) {
1359 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LHEAD);
1360 priv->bLongHeader = true;
1363 if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)
1366 tx_buffer_head->frag_ctl =
1367 cpu_to_le16(ieee80211_get_hdrlen_from_skb(skb) << 10);
1369 if (info->control.hw_key) {
1370 tx_key = info->control.hw_key;
1372 switch (info->control.hw_key->cipher) {
1373 case WLAN_CIPHER_SUITE_WEP40:
1374 case WLAN_CIPHER_SUITE_WEP104:
1375 tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_LEGACY);
1377 case WLAN_CIPHER_SUITE_TKIP:
1378 tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_TKIP);
1380 case WLAN_CIPHER_SUITE_CCMP:
1381 tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_AES);
1387 tx_buffer_head->current_rate = cpu_to_le16(current_rate);
1389 /* legacy rates TODO use ieee80211_tx_rate */
1390 if (current_rate >= RATE_18M && ieee80211_is_data(hdr->frame_control)) {
1391 if (priv->byAutoFBCtrl == AUTO_FB_0)
1392 tx_buffer_head->fifo_ctl |=
1393 cpu_to_le16(FIFOCTL_AUTO_FB_0);
1394 else if (priv->byAutoFBCtrl == AUTO_FB_1)
1395 tx_buffer_head->fifo_ctl |=
1396 cpu_to_le16(FIFOCTL_AUTO_FB_1);
1400 tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG);
1402 s_cbFillTxBufHead(priv, pkt_type, (u8 *)tx_buffer_head,
1403 dma_idx, head_td, is_pspoll);
1405 if (info->control.hw_key) {
1406 tx_key = info->control.hw_key;
1407 if (tx_key->keylen > 0)
1408 vnt_fill_txkey(hdr, tx_buffer_head->tx_key,
1409 tx_key, skb, tx_body_size, td_info->mic_hdr);
1415 static int vnt_beacon_xmit(struct vnt_private *priv,
1416 struct sk_buff *skb)
1418 struct vnt_tx_short_buf_head *short_head =
1419 (struct vnt_tx_short_buf_head *)priv->tx_beacon_bufs;
1420 struct ieee80211_mgmt *mgmt_hdr = (struct ieee80211_mgmt *)
1421 (priv->tx_beacon_bufs + sizeof(*short_head));
1422 struct ieee80211_tx_info *info;
1423 u32 frame_size = skb->len + 4;
1426 memset(priv->tx_beacon_bufs, 0, sizeof(*short_head));
1428 if (priv->byBBType == BB_TYPE_11A) {
1429 current_rate = RATE_6M;
1431 /* Get SignalField,ServiceField,Length */
1432 vnt_get_phy_field(priv, frame_size, current_rate,
1433 PK_TYPE_11A, &short_head->ab);
1435 /* Get Duration and TimeStampOff */
1436 short_head->duration =
1437 cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B,
1438 frame_size, PK_TYPE_11A, current_rate,
1439 false, 0, 0, 1, AUTO_FB_NONE));
1441 short_head->time_stamp_off =
1442 vnt_time_stamp_off(priv, current_rate);
1444 current_rate = RATE_1M;
1445 short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_11B);
1447 /* Get SignalField,ServiceField,Length */
1448 vnt_get_phy_field(priv, frame_size, current_rate,
1449 PK_TYPE_11B, &short_head->ab);
1451 /* Get Duration and TimeStampOff */
1452 short_head->duration =
1453 cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B,
1454 frame_size, PK_TYPE_11B, current_rate,
1455 false, 0, 0, 1, AUTO_FB_NONE));
1457 short_head->time_stamp_off =
1458 vnt_time_stamp_off(priv, current_rate);
1461 short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
1464 memcpy(mgmt_hdr, skb->data, skb->len);
1466 /* time stamp always 0 */
1467 mgmt_hdr->u.beacon.timestamp = 0;
1469 info = IEEE80211_SKB_CB(skb);
1470 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1471 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)mgmt_hdr;
1473 hdr->duration_id = 0;
1474 hdr->seq_ctrl = cpu_to_le16(priv->wSeqCounter << 4);
1477 priv->wSeqCounter++;
1478 if (priv->wSeqCounter > 0x0fff)
1479 priv->wSeqCounter = 0;
1481 priv->wBCNBufLen = sizeof(*short_head) + skb->len;
1483 MACvSetCurrBCNTxDescAddr(priv->PortOffset, priv->tx_beacon_dma);
1485 MACvSetCurrBCNLength(priv->PortOffset, priv->wBCNBufLen);
1486 /* Set auto Transmit on */
1487 MACvRegBitsOn(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
1488 /* Poll Transmit the adapter */
1489 MACvTransmitBCN(priv->PortOffset);
1494 int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif)
1496 struct sk_buff *beacon;
1498 beacon = ieee80211_beacon_get(priv->hw, vif);
1502 if (vnt_beacon_xmit(priv, beacon)) {
1503 ieee80211_free_txskb(priv->hw, beacon);
1510 int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif,
1511 struct ieee80211_bss_conf *conf)
1513 VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
1515 VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
1517 CARDvSetFirstNextTBTT(priv, conf->beacon_int);
1519 CARDbSetBeaconPeriod(priv, conf->beacon_int);
1521 return vnt_beacon_make(priv, vif);