1 /*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
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.
9 *
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.
14 *
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.
18 *
19 * File: rxtx.c
20 *
21 * Purpose: handle WMAC/802.3/802.11 rx & tx functions
22 *
23 * Author: Lyndon Chen
24 *
25 * Date: May 20, 2003
26 *
27 * 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
46 *
47 * Revision History:
48 *
49 */
50
51 #include "device.h"
52 #include "rxtx.h"
53 #include "card.h"
54 #include "mac.h"
55 #include "baseband.h"
56 #include "rf.h"
57
58 /*--------------------- Static Definitions -------------------------*/
59
60 /*--------------------- Static Classes ----------------------------*/
61
62 /*--------------------- Static Variables --------------------------*/
63
64 /*--------------------- Static Functions --------------------------*/
65
66 /*--------------------- Static Definitions -------------------------*/
67 #define CRITICAL_PACKET_LEN 256 /* if packet size < 256 -> in-direct send
68 packet size >= 256 -> direct send */
69
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 */
73 };
74
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 */
78 };
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 */
82 };
83
84 #define RTSDUR_BB 0
85 #define RTSDUR_BA 1
86 #define RTSDUR_AA 2
87 #define CTSDUR_BA 3
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
94 #define DATADUR_B 10
95 #define DATADUR_A 11
96 #define DATADUR_A_F0 12
97 #define DATADUR_A_F1 13
98
99 /*--------------------- Static Functions --------------------------*/
100 static
101 void
102 s_vFillRTSHead(
103 struct vnt_private *pDevice,
104 unsigned char byPktType,
105 void *pvRTS,
106 unsigned int cbFrameLength,
107 bool bNeedAck,
108 bool bDisCRC,
109 struct ieee80211_hdr *hdr,
110 unsigned short wCurrentRate,
111 unsigned char byFBOption
112 );
113
114 static
115 void
116 s_vGenerateTxParameter(
117 struct vnt_private *pDevice,
118 unsigned char byPktType,
119 struct vnt_tx_fifo_head *,
120 void *pvRrvTime,
121 void *pvRTS,
122 void *pvCTS,
123 unsigned int cbFrameSize,
124 bool bNeedACK,
125 unsigned int uDMAIdx,
126 void *psEthHeader,
127 unsigned short wCurrentRate
128 );
129
130 static unsigned int
131 s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
132 unsigned char *pbyTxBufferAddr,
133 unsigned int uDMAIdx, PSTxDesc pHeadTD,
134 unsigned int uNodeIndex);
135
136 static
137 __le16
138 s_uFillDataHead(
139 struct vnt_private *pDevice,
140 unsigned char byPktType,
141 void *pTxDataHead,
142 unsigned int cbFrameLength,
143 unsigned int uDMAIdx,
144 bool bNeedAck,
145 unsigned int uFragIdx,
146 unsigned int cbLastFragmentSize,
147 unsigned int uMACfragNum,
148 unsigned char byFBOption,
149 unsigned short wCurrentRate,
150 bool is_pspoll
151 );
152
153 /*--------------------- Export Variables --------------------------*/
154
vnt_time_stamp_off(struct vnt_private * priv,u16 rate)155 static __le16 vnt_time_stamp_off(struct vnt_private *priv, u16 rate)
156 {
157 return cpu_to_le16(wTimeStampOff[priv->byPreambleType % 2]
158 [rate % MAX_RATE]);
159 }
160
161 /*byPktType : PK_TYPE_11A 0
162 PK_TYPE_11B 1
163 PK_TYPE_11GB 2
164 PK_TYPE_11GA 3
165 */
166 static
167 unsigned int
s_uGetTxRsvTime(struct vnt_private * pDevice,unsigned char byPktType,unsigned int cbFrameLength,unsigned short wRate,bool bNeedAck)168 s_uGetTxRsvTime(
169 struct vnt_private *pDevice,
170 unsigned char byPktType,
171 unsigned int cbFrameLength,
172 unsigned short wRate,
173 bool bNeedAck
174 )
175 {
176 unsigned int uDataTime, uAckTime;
177
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);
183
184 if (bNeedAck)
185 return uDataTime + pDevice->uSIFS + uAckTime;
186 else
187 return uDataTime;
188 }
189
vnt_rxtx_rsvtime_le16(struct vnt_private * priv,u8 pkt_type,u32 frame_length,u16 rate,bool need_ack)190 static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type,
191 u32 frame_length, u16 rate, bool need_ack)
192 {
193 return cpu_to_le16((u16)s_uGetTxRsvTime(priv, pkt_type,
194 frame_length, rate, need_ack));
195 }
196
197 /* byFreqType: 0=>5GHZ 1=>2.4GHZ */
198 static
199 __le16
s_uGetRTSCTSRsvTime(struct vnt_private * pDevice,unsigned char byRTSRsvType,unsigned char byPktType,unsigned int cbFrameLength,unsigned short wCurrentRate)200 s_uGetRTSCTSRsvTime(
201 struct vnt_private *pDevice,
202 unsigned char byRTSRsvType,
203 unsigned char byPktType,
204 unsigned int cbFrameLength,
205 unsigned short wCurrentRate
206 )
207 {
208 unsigned int uRrvTime, uRTSTime, uCTSTime, uAckTime, uDataTime;
209
210 uRrvTime = uRTSTime = uCTSTime = uAckTime = uDataTime = 0;
211
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);
228 }
229
230 /* RTSRrvTime */
231 uRrvTime = uRTSTime + uCTSTime + uAckTime + uDataTime + 3*pDevice->uSIFS;
232 return cpu_to_le16((u16)uRrvTime);
233 }
234
235 /* byFreqType 0: 5GHz, 1:2.4Ghz */
236 static
237 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)238 s_uGetDataDuration(
239 struct vnt_private *pDevice,
240 unsigned char byDurType,
241 unsigned int cbFrameLength,
242 unsigned char byPktType,
243 unsigned short wRate,
244 bool bNeedAck,
245 unsigned int uFragIdx,
246 unsigned int cbLastFragmentSize,
247 unsigned int uMACfragNum,
248 unsigned char byFBOption
249 )
250 {
251 bool bLastFrag = false;
252 unsigned int uAckTime = 0, uNextPktTime = 0;
253
254 if (uFragIdx == (uMACfragNum-1))
255 bLastFrag = true;
256
257 switch (byDurType) {
258 case DATADUR_B: /* DATADUR_B */
259 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
260 if (bNeedAck) {
261 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
262 return pDevice->uSIFS + uAckTime;
263 } else {
264 return 0;
265 }
266 } else {/* First Frag or Mid Frag */
267 if (uFragIdx == (uMACfragNum-2))
268 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
269 else
270 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
271
272 if (bNeedAck) {
273 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
274 return pDevice->uSIFS + uAckTime + uNextPktTime;
275 } else {
276 return pDevice->uSIFS + uNextPktTime;
277 }
278 }
279 break;
280
281 case DATADUR_A: /* DATADUR_A */
282 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
283 if (bNeedAck) {
284 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
285 return pDevice->uSIFS + uAckTime;
286 } else {
287 return 0;
288 }
289 } else {/* First Frag or Mid Frag */
290 if (uFragIdx == (uMACfragNum-2))
291 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
292 else
293 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
294
295 if (bNeedAck) {
296 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
297 return pDevice->uSIFS + uAckTime + uNextPktTime;
298 } else {
299 return pDevice->uSIFS + uNextPktTime;
300 }
301 }
302 break;
303
304 case DATADUR_A_F0: /* DATADUR_A_F0 */
305 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
306 if (bNeedAck) {
307 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
308 return pDevice->uSIFS + uAckTime;
309 } else {
310 return 0;
311 }
312 } else { /* First Frag or Mid Frag */
313 if (byFBOption == AUTO_FB_0) {
314 if (wRate < RATE_18M)
315 wRate = RATE_18M;
316 else if (wRate > RATE_54M)
317 wRate = RATE_54M;
318
319 if (uFragIdx == (uMACfragNum-2))
320 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
321 else
322 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
323
324 } else { /* (byFBOption == AUTO_FB_1) */
325 if (wRate < RATE_18M)
326 wRate = RATE_18M;
327 else if (wRate > RATE_54M)
328 wRate = RATE_54M;
329
330 if (uFragIdx == (uMACfragNum-2))
331 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
332 else
333 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
334
335 }
336
337 if (bNeedAck) {
338 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
339 return pDevice->uSIFS + uAckTime + uNextPktTime;
340 } else {
341 return pDevice->uSIFS + uNextPktTime;
342 }
343 }
344 break;
345
346 case DATADUR_A_F1: /* DATADUR_A_F1 */
347 if (((uMACfragNum == 1)) || bLastFrag) { /* Non Frag or Last Frag */
348 if (bNeedAck) {
349 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
350 return pDevice->uSIFS + uAckTime;
351 } else {
352 return 0;
353 }
354 } else { /* First Frag or Mid Frag */
355 if (byFBOption == AUTO_FB_0) {
356 if (wRate < RATE_18M)
357 wRate = RATE_18M;
358 else if (wRate > RATE_54M)
359 wRate = RATE_54M;
360
361 if (uFragIdx == (uMACfragNum-2))
362 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
363 else
364 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
365
366 } else { /* (byFBOption == AUTO_FB_1) */
367 if (wRate < RATE_18M)
368 wRate = RATE_18M;
369 else if (wRate > RATE_54M)
370 wRate = RATE_54M;
371
372 if (uFragIdx == (uMACfragNum-2))
373 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
374 else
375 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
376 }
377 if (bNeedAck) {
378 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
379 return pDevice->uSIFS + uAckTime + uNextPktTime;
380 } else {
381 return pDevice->uSIFS + uNextPktTime;
382 }
383 }
384 break;
385
386 default:
387 break;
388 }
389
390 ASSERT(false);
391 return 0;
392 }
393
394 /* byFreqType: 0=>5GHZ 1=>2.4GHZ */
395 static
396 __le16
s_uGetRTSCTSDuration(struct vnt_private * pDevice,unsigned char byDurType,unsigned int cbFrameLength,unsigned char byPktType,unsigned short wRate,bool bNeedAck,unsigned char byFBOption)397 s_uGetRTSCTSDuration(
398 struct vnt_private *pDevice,
399 unsigned char byDurType,
400 unsigned int cbFrameLength,
401 unsigned char byPktType,
402 unsigned short wRate,
403 bool bNeedAck,
404 unsigned char byFBOption
405 )
406 {
407 unsigned int uCTSTime = 0, uDurTime = 0;
408
409 switch (byDurType) {
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);
413 break;
414
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);
418 break;
419
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);
423 break;
424
425 case CTSDUR_BA: /* CTSDuration_ba */
426 uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
427 break;
428
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);
435
436 break;
437
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);
444
445 break;
446
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);
453
454 break;
455
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);
462
463 break;
464
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);
470
471 break;
472
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);
478
479 break;
480
481 default:
482 break;
483 }
484
485 return cpu_to_le16((u16)uDurTime);
486 }
487
488 static
489 __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)490 s_uFillDataHead(
491 struct vnt_private *pDevice,
492 unsigned char byPktType,
493 void *pTxDataHead,
494 unsigned int cbFrameLength,
495 unsigned int uDMAIdx,
496 bool bNeedAck,
497 unsigned int uFragIdx,
498 unsigned int cbLastFragmentSize,
499 unsigned int uMACfragNum,
500 unsigned char byFBOption,
501 unsigned short wCurrentRate,
502 bool is_pspoll
503 )
504 {
505
506 if (pTxDataHead == NULL)
507 return 0;
508
509
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,
515 byPktType, &buf->a);
516
517 vnt_get_phy_field(pDevice, cbFrameLength,
518 pDevice->byTopCCKBasicRate,
519 PK_TYPE_11B, &buf->b);
520
521 if (is_pspoll) {
522 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
523
524 buf->duration_a = dur;
525 buf->duration_b = dur;
526 } else {
527 /* Get Duration and TimeStamp */
528 buf->duration_a =
529 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength,
530 byPktType, wCurrentRate, bNeedAck, uFragIdx,
531 cbLastFragmentSize, uMACfragNum,
532 byFBOption));
533 buf->duration_b =
534 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength,
535 PK_TYPE_11B, pDevice->byTopCCKBasicRate,
536 bNeedAck, uFragIdx, cbLastFragmentSize,
537 uMACfragNum, byFBOption));
538 }
539
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);
542
543 return buf->duration_a;
544 } else {
545 /* Auto Fallback */
546 struct vnt_tx_datahead_g_fb *buf = pTxDataHead;
547 /* Get SignalField, ServiceField & Length */
548 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
549 byPktType, &buf->a);
550
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));
563
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);
566
567 return buf->duration_a;
568 } /* if (byFBOption == AUTO_FB_NONE) */
569 } else if (byPktType == PK_TYPE_11A) {
570 if ((byFBOption != AUTO_FB_NONE)) {
571 /* Auto Fallback */
572 struct vnt_tx_datahead_a_fb *buf = pTxDataHead;
573 /* Get SignalField, ServiceField & Length */
574 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
575 byPktType, &buf->a);
576
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;
586 } else {
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);
591
592 if (is_pspoll) {
593 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
594
595 buf->duration = dur;
596 } else {
597 /* Get Duration and TimeStampOff */
598 buf->duration =
599 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
600 wCurrentRate, bNeedAck, uFragIdx,
601 cbLastFragmentSize, uMACfragNum,
602 byFBOption));
603 }
604
605 buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
606 return buf->duration;
607 }
608 } else {
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);
613
614 if (is_pspoll) {
615 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
616
617 buf->duration = dur;
618 } else {
619 /* Get Duration and TimeStampOff */
620 buf->duration =
621 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength, byPktType,
622 wCurrentRate, bNeedAck, uFragIdx,
623 cbLastFragmentSize, uMACfragNum,
624 byFBOption));
625 }
626
627 buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
628 return buf->duration;
629 }
630 return 0;
631 }
632
633
634 static
635 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)636 s_vFillRTSHead(
637 struct vnt_private *pDevice,
638 unsigned char byPktType,
639 void *pvRTS,
640 unsigned int cbFrameLength,
641 bool bNeedAck,
642 bool bDisCRC,
643 struct ieee80211_hdr *hdr,
644 unsigned short wCurrentRate,
645 unsigned char byFBOption
646 )
647 {
648 unsigned int uRTSFrameLen = 20;
649
650 if (pvRTS == NULL)
651 return;
652
653 if (bDisCRC) {
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. */
656 uRTSFrameLen -= 4;
657 }
658
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);
668
669 vnt_get_phy_field(pDevice, uRTSFrameLen,
670 pDevice->byTopOFDMBasicRate,
671 byPktType, &buf->a);
672 /* Get Duration */
673 buf->duration_bb =
674 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
675 cbFrameLength, PK_TYPE_11B,
676 pDevice->byTopCCKBasicRate,
677 bNeedAck, byFBOption);
678 buf->duration_aa =
679 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
680 cbFrameLength, byPktType,
681 wCurrentRate, bNeedAck,
682 byFBOption);
683 buf->duration_ba =
684 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
685 cbFrameLength, byPktType,
686 wCurrentRate, bNeedAck,
687 byFBOption);
688
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);
694
695 ether_addr_copy(buf->data.ra, hdr->addr1);
696 ether_addr_copy(buf->data.ta, hdr->addr2);
697 } else {
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);
703
704 vnt_get_phy_field(pDevice, uRTSFrameLen,
705 pDevice->byTopOFDMBasicRate,
706 byPktType, &buf->a);
707 /* Get Duration */
708 buf->duration_bb =
709 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
710 cbFrameLength, PK_TYPE_11B,
711 pDevice->byTopCCKBasicRate,
712 bNeedAck, byFBOption);
713 buf->duration_aa =
714 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
715 cbFrameLength, byPktType,
716 wCurrentRate, bNeedAck,
717 byFBOption);
718 buf->duration_ba =
719 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
720 cbFrameLength, byPktType,
721 wCurrentRate, bNeedAck,
722 byFBOption);
723 buf->rts_duration_ba_f0 =
724 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F0,
725 cbFrameLength, byPktType,
726 wCurrentRate, bNeedAck,
727 byFBOption);
728 buf->rts_duration_aa_f0 =
729 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
730 cbFrameLength, byPktType,
731 wCurrentRate, bNeedAck,
732 byFBOption);
733 buf->rts_duration_ba_f1 =
734 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F1,
735 cbFrameLength, byPktType,
736 wCurrentRate, bNeedAck,
737 byFBOption);
738 buf->rts_duration_aa_f1 =
739 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
740 cbFrameLength, byPktType,
741 wCurrentRate, bNeedAck,
742 byFBOption);
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);
748
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);
759 /* Get Duration */
760 buf->duration =
761 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
762 cbFrameLength, byPktType,
763 wCurrentRate, bNeedAck,
764 byFBOption);
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);
770
771 ether_addr_copy(buf->data.ra, hdr->addr1);
772 ether_addr_copy(buf->data.ta, hdr->addr2);
773 } else {
774 struct vnt_rts_a_fb *buf = pvRTS;
775 /* Get SignalField, ServiceField & Length */
776 vnt_get_phy_field(pDevice, uRTSFrameLen,
777 pDevice->byTopOFDMBasicRate,
778 byPktType, &buf->a);
779 /* Get Duration */
780 buf->duration =
781 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
782 cbFrameLength, byPktType,
783 wCurrentRate, bNeedAck,
784 byFBOption);
785 buf->rts_duration_f0 =
786 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
787 cbFrameLength, byPktType,
788 wCurrentRate, bNeedAck,
789 byFBOption);
790 buf->rts_duration_f1 =
791 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
792 cbFrameLength, byPktType,
793 wCurrentRate, bNeedAck,
794 byFBOption);
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);
800
801 ether_addr_copy(buf->data.ra, hdr->addr1);
802 ether_addr_copy(buf->data.ta, hdr->addr2);
803 }
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);
810 /* Get Duration */
811 buf->duration =
812 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB, cbFrameLength,
813 byPktType, wCurrentRate, bNeedAck,
814 byFBOption);
815
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);
820
821 ether_addr_copy(buf->data.ra, hdr->addr1);
822 ether_addr_copy(buf->data.ta, hdr->addr2);
823 }
824 }
825
826 static
827 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)828 s_vFillCTSHead(
829 struct vnt_private *pDevice,
830 unsigned int uDMAIdx,
831 unsigned char byPktType,
832 void *pvCTS,
833 unsigned int cbFrameLength,
834 bool bNeedAck,
835 bool bDisCRC,
836 unsigned short wCurrentRate,
837 unsigned char byFBOption
838 )
839 {
840 unsigned int uCTSFrameLen = 14;
841
842 if (pvCTS == NULL)
843 return;
844
845 if (bDisCRC) {
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. */
848 uCTSFrameLen -= 4;
849 }
850
851 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
852 if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) {
853 /* Auto Fall back */
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);
859
860 buf->duration_ba =
861 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
862 cbFrameLength, byPktType,
863 wCurrentRate, bNeedAck,
864 byFBOption);
865
866 /* Get CTSDuration_ba_f0 */
867 buf->cts_duration_ba_f0 =
868 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F0,
869 cbFrameLength, byPktType,
870 wCurrentRate, bNeedAck,
871 byFBOption);
872
873 /* Get CTSDuration_ba_f1 */
874 buf->cts_duration_ba_f1 =
875 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F1,
876 cbFrameLength, byPktType,
877 wCurrentRate, bNeedAck,
878 byFBOption);
879
880 /* Get CTS Frame body */
881 buf->data.duration = buf->duration_ba;
882
883 buf->data.frame_control =
884 cpu_to_le16(IEEE80211_FTYPE_CTL |
885 IEEE80211_STYPE_CTS);
886
887 buf->reserved2 = 0x0;
888
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);
897
898 /* Get CTSDuration_ba */
899 buf->duration_ba =
900 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
901 cbFrameLength, byPktType,
902 wCurrentRate, bNeedAck,
903 byFBOption);
904
905 /* Get CTS Frame body */
906 buf->data.duration = buf->duration_ba;
907
908 buf->data.frame_control =
909 cpu_to_le16(IEEE80211_FTYPE_CTL |
910 IEEE80211_STYPE_CTS);
911
912 buf->reserved2 = 0x0;
913 ether_addr_copy(buf->data.ra,
914 pDevice->abyCurrentNetAddr);
915 }
916 }
917 }
918
919 /*+
920 *
921 * Description:
922 * Generate FIFO control for MAC & Baseband controller
923 *
924 * Parameters:
925 * In:
926 * pDevice - Pointer to adapter
927 * pTxDataHead - Transmit Data Buffer
928 * pTxBufHead - pTxBufHead
929 * pvRrvTime - pvRrvTime
930 * pvRTS - RTS Buffer
931 * pCTS - CTS Buffer
932 * cbFrameSize - Transmit Data Length (Hdr+Payload+FCS)
933 * bNeedACK - If need ACK
934 * uDescIdx - Desc Index
935 * Out:
936 * none
937 *
938 * Return Value: none
939 *
940 -
941 * unsigned int cbFrameSize, Hdr+Payload+FCS */
942 static
943 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)944 s_vGenerateTxParameter(
945 struct vnt_private *pDevice,
946 unsigned char byPktType,
947 struct vnt_tx_fifo_head *tx_buffer_head,
948 void *pvRrvTime,
949 void *pvRTS,
950 void *pvCTS,
951 unsigned int cbFrameSize,
952 bool bNeedACK,
953 unsigned int uDMAIdx,
954 void *psEthHeader,
955 unsigned short wCurrentRate
956 )
957 {
958 u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl);
959 bool bDisCRC = false;
960 unsigned char byFBOption = AUTO_FB_NONE;
961
962 tx_buffer_head->current_rate = cpu_to_le16(wCurrentRate);
963
964 if (fifo_ctl & FIFOCTL_CRCDIS)
965 bDisCRC = true;
966
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;
971
972 if (!pvRrvTime)
973 return;
974
975 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
976 if (pvRTS != NULL) { /* RTS_need
977 Fill RsvTime */
978 struct vnt_rrv_time_rts *buf = pvRrvTime;
979
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);
985
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;
989
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);
993
994 /* Fill CTS */
995 s_vFillCTSHead(pDevice, uDMAIdx, byPktType, pvCTS, cbFrameSize, bNeedACK, bDisCRC, wCurrentRate, byFBOption);
996 }
997 } else if (byPktType == PK_TYPE_11A) {
998 if (pvRTS != NULL) {/* RTS_need, non PCF mode */
999 struct vnt_rrv_time_ab *buf = pvRrvTime;
1000
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);
1003
1004 /* Fill RTS */
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;
1008
1009 buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK);
1010 }
1011 } else if (byPktType == PK_TYPE_11B) {
1012 if ((pvRTS != NULL)) {/* RTS_need, non PCF mode */
1013 struct vnt_rrv_time_ab *buf = pvRrvTime;
1014
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);
1017
1018 /* Fill RTS */
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;
1022
1023 buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
1024 }
1025 }
1026 }
1027
1028 static unsigned int
s_cbFillTxBufHead(struct vnt_private * pDevice,unsigned char byPktType,unsigned char * pbyTxBufferAddr,unsigned int uDMAIdx,PSTxDesc pHeadTD,unsigned int is_pspoll)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)
1033 {
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;
1042 __le16 uDuration;
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);
1051 PSTxDesc ptdCurr;
1052 unsigned int cbHeaderLength = 0;
1053 void *pvRrvTime;
1054 struct vnt_mic_hdr *pMICHDR;
1055 void *pvRTS;
1056 void *pvCTS;
1057 void *pvTxDataHd;
1058 unsigned short wTxBufSize; /* FFinfo size */
1059 unsigned char byFBOption = AUTO_FB_NONE;
1060
1061 pvRrvTime = pMICHDR = pvRTS = pvCTS = pvTxDataHd = NULL;
1062
1063 cbFrameSize = skb->len + 4;
1064
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);
1069 default:
1070 break;
1071 }
1072
1073 cbFrameSize += info->control.hw_key->icv_len;
1074
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);
1078 uPadding %= 4;
1079 }
1080 }
1081
1082 /*
1083 * Use for AUTO FALL BACK
1084 */
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;
1089
1090
1091 /* Set RrvTime/RTS/CTS Buffer */
1092 wTxBufSize = sizeof(STxBufHead);
1093 if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {/* 802.11g packet */
1094
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);
1100 pvCTS = NULL;
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));
1109 pvRTS = NULL;
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);
1115 }
1116 } else {
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);
1122 pvCTS = NULL;
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));
1130 pvRTS = NULL;
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);
1136 }
1137 } /* Auto Fall Back */
1138 } else {/* 802.11a/b packet */
1139
1140 if (byFBOption == AUTO_FB_NONE) {
1141 if (bRTS == true) {
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);
1145 pvCTS = NULL;
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));
1153 pvRTS = NULL;
1154 pvCTS = NULL;
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);
1158 }
1159 } else {
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);
1165 pvCTS = NULL;
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));
1173 pvRTS = NULL;
1174 pvCTS = NULL;
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);
1178 }
1179 } /* Auto Fall Back */
1180 }
1181
1182 td_info->mic_hdr = pMICHDR;
1183
1184 memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderLength - wTxBufSize));
1185
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);
1189 /* Fill DataHead */
1190 uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
1191 0, 0, uMACfragNum, byFBOption, pDevice->wCurrentRate, is_pspoll);
1192
1193 hdr->duration_id = uDuration;
1194
1195 cbReqCount = cbHeaderLength + uPadding + skb->len;
1196 pbyBuffer = (unsigned char *)pHeadTD->pTDInfo->buf;
1197 uLength = cbHeaderLength + uPadding;
1198
1199 /* Copy the Packet into a tx Buffer */
1200 memcpy((pbyBuffer + uLength), skb->data, skb->len);
1201
1202 ptdCurr = (PSTxDesc)pHeadTD;
1203
1204 ptdCurr->pTDInfo->dwReqCount = cbReqCount;
1205 ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
1206 ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma;
1207
1208 return cbHeaderLength;
1209 }
1210
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)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)
1215 {
1216 struct ieee80211_key_seq seq;
1217 u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
1218
1219 /* strip header and icv len from payload */
1220 payload_len -= ieee80211_get_hdrlen_from_skb(skb);
1221 payload_len -= tx_key->icv_len;
1222
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);
1228
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);
1233 }
1234
1235 break;
1236 case WLAN_CIPHER_SUITE_TKIP:
1237 ieee80211_get_tkip_p2k(tx_key, skb, key_buffer);
1238
1239 break;
1240 case WLAN_CIPHER_SUITE_CCMP:
1241
1242 if (!mic_hdr)
1243 return;
1244
1245 mic_hdr->id = 0x59;
1246 mic_hdr->payload_len = cpu_to_be16(payload_len);
1247 ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
1248
1249 ieee80211_get_key_tx_seq(tx_key, &seq);
1250
1251 memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1252
1253 if (ieee80211_has_a4(hdr->frame_control))
1254 mic_hdr->hlen = cpu_to_be16(28);
1255 else
1256 mic_hdr->hlen = cpu_to_be16(22);
1257
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);
1261
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);
1266
1267 if (ieee80211_has_a4(hdr->frame_control))
1268 ether_addr_copy(mic_hdr->addr4, hdr->addr4);
1269
1270 memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP);
1271
1272 break;
1273 default:
1274 break;
1275 }
1276 }
1277
vnt_generate_fifo_header(struct vnt_private * priv,u32 dma_idx,PSTxDesc head_td,struct sk_buff * skb)1278 int vnt_generate_fifo_header(struct vnt_private *priv, u32 dma_idx,
1279 PSTxDesc head_td, struct sk_buff *skb)
1280 {
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;
1290 u8 pkt_type;
1291 bool is_pspoll = false;
1292
1293 memset(tx_buffer_head, 0, sizeof(*tx_buffer_head));
1294
1295 hdr = (struct ieee80211_hdr *)(skb->data);
1296
1297 rate = ieee80211_get_tx_rate(priv->hw, info);
1298
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;
1303
1304 RFbSetPower(priv, priv->wCurrentRate,
1305 priv->hw->conf.chandef.chan->hw_value);
1306 }
1307
1308 if (current_rate > RATE_11M) {
1309 if (info->band == IEEE80211_BAND_5GHZ) {
1310 pkt_type = PK_TYPE_11A;
1311 } else {
1312 if (tx_rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1313 pkt_type = PK_TYPE_11GB;
1314 else
1315 pkt_type = PK_TYPE_11GA;
1316 }
1317 } else {
1318 pkt_type = PK_TYPE_11B;
1319 }
1320
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);
1330
1331 /* generate interrupt */
1332 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
1333
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);
1339 } else {
1340 tx_buffer_head->time_stamp =
1341 cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us);
1342 }
1343
1344 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
1345 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_NEEDACK);
1346
1347 if (ieee80211_has_retry(hdr->frame_control))
1348 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LRETRY);
1349
1350 if (tx_rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1351 priv->byPreambleType = PREAMBLE_SHORT;
1352 else
1353 priv->byPreambleType = PREAMBLE_LONG;
1354
1355 if (tx_rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1356 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_RTS);
1357
1358 if (ieee80211_has_a4(hdr->frame_control)) {
1359 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LHEAD);
1360 priv->bLongHeader = true;
1361 }
1362
1363 if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)
1364 is_pspoll = true;
1365
1366 tx_buffer_head->frag_ctl =
1367 cpu_to_le16(ieee80211_get_hdrlen_from_skb(skb) << 10);
1368
1369 if (info->control.hw_key) {
1370 tx_key = info->control.hw_key;
1371
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);
1376 break;
1377 case WLAN_CIPHER_SUITE_TKIP:
1378 tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_TKIP);
1379 break;
1380 case WLAN_CIPHER_SUITE_CCMP:
1381 tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_AES);
1382 default:
1383 break;
1384 }
1385 }
1386
1387 tx_buffer_head->current_rate = cpu_to_le16(current_rate);
1388
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);
1397
1398 }
1399
1400 tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG);
1401
1402 s_cbFillTxBufHead(priv, pkt_type, (u8 *)tx_buffer_head,
1403 dma_idx, head_td, is_pspoll);
1404
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);
1410 }
1411
1412 return 0;
1413 }
1414
vnt_beacon_xmit(struct vnt_private * priv,struct sk_buff * skb)1415 static int vnt_beacon_xmit(struct vnt_private *priv,
1416 struct sk_buff *skb)
1417 {
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;
1424 u16 current_rate;
1425
1426 memset(priv->tx_beacon_bufs, 0, sizeof(*short_head));
1427
1428 if (priv->byBBType == BB_TYPE_11A) {
1429 current_rate = RATE_6M;
1430
1431 /* Get SignalField,ServiceField,Length */
1432 vnt_get_phy_field(priv, frame_size, current_rate,
1433 PK_TYPE_11A, &short_head->ab);
1434
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));
1440
1441 short_head->time_stamp_off =
1442 vnt_time_stamp_off(priv, current_rate);
1443 } else {
1444 current_rate = RATE_1M;
1445 short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_11B);
1446
1447 /* Get SignalField,ServiceField,Length */
1448 vnt_get_phy_field(priv, frame_size, current_rate,
1449 PK_TYPE_11B, &short_head->ab);
1450
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));
1456
1457 short_head->time_stamp_off =
1458 vnt_time_stamp_off(priv, current_rate);
1459 }
1460
1461 short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
1462
1463 /* Copy Beacon */
1464 memcpy(mgmt_hdr, skb->data, skb->len);
1465
1466 /* time stamp always 0 */
1467 mgmt_hdr->u.beacon.timestamp = 0;
1468
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;
1472
1473 hdr->duration_id = 0;
1474 hdr->seq_ctrl = cpu_to_le16(priv->wSeqCounter << 4);
1475 }
1476
1477 priv->wSeqCounter++;
1478 if (priv->wSeqCounter > 0x0fff)
1479 priv->wSeqCounter = 0;
1480
1481 priv->wBCNBufLen = sizeof(*short_head) + skb->len;
1482
1483 MACvSetCurrBCNTxDescAddr(priv->PortOffset, priv->tx_beacon_dma);
1484
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);
1490
1491 return 0;
1492 }
1493
vnt_beacon_make(struct vnt_private * priv,struct ieee80211_vif * vif)1494 int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif)
1495 {
1496 struct sk_buff *beacon;
1497
1498 beacon = ieee80211_beacon_get(priv->hw, vif);
1499 if (!beacon)
1500 return -ENOMEM;
1501
1502 if (vnt_beacon_xmit(priv, beacon)) {
1503 ieee80211_free_txskb(priv->hw, beacon);
1504 return -ENODEV;
1505 }
1506
1507 return 0;
1508 }
1509
vnt_beacon_enable(struct vnt_private * priv,struct ieee80211_vif * vif,struct ieee80211_bss_conf * conf)1510 int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif,
1511 struct ieee80211_bss_conf *conf)
1512 {
1513 VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
1514
1515 VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
1516
1517 CARDvSetFirstNextTBTT(priv, conf->beacon_int);
1518
1519 CARDbSetBeaconPeriod(priv, conf->beacon_int);
1520
1521 return vnt_beacon_make(priv, vif);
1522 }
1523