Commit | Line | Data |
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4bd43f50 LR |
1 | /* |
2 | * Copyright (c) 2007-2008 Atheros Communications Inc. | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #include "cprecomp.h" | |
18 | #include "ratectrl.h" | |
19 | ||
20 | ||
21 | void zfUpdateBssid(zdev_t* dev, u8_t* bssid) | |
22 | { | |
23 | ||
24 | zmw_get_wlan_dev(dev); | |
25 | ||
26 | //zmw_declare_for_critical_section(); | |
27 | ||
28 | //zmw_enter_critical_section(dev); | |
29 | wd->sta.bssid[0] = bssid[0] + (((u16_t) bssid[1]) << 8); | |
30 | wd->sta.bssid[1] = bssid[2] + (((u16_t) bssid[3]) << 8); | |
31 | wd->sta.bssid[2] = bssid[4] + (((u16_t) bssid[5]) << 8); | |
32 | //zmw_leave_critical_section(dev); | |
33 | ||
34 | zfHpSetBssid(dev, bssid); | |
35 | ||
36 | } | |
37 | ||
38 | /************************************************************************************/ | |
39 | /* */ | |
40 | /* FUNCTION DESCRIPTION zfResetSupportRate */ | |
41 | /* Reset support rate to default value. */ | |
42 | /* */ | |
43 | /* INPUTS */ | |
44 | /* dev : device pointer */ | |
45 | /* type: ZM_DEFAULT_SUPPORT_RATE_ZERO => reset to zero */ | |
46 | /* ZM_DEFAULT_SUPPORT_RATE_DISCONNECT => reset to disconnect status */ | |
47 | /* ZM_DEFAULT_SUPPORT_RATE_IBSS_B => reset to IBSS creator(b mode) */ | |
48 | /* ZM_DEFAULT_SUPPORT_RATE_IBSS_AG => reset to IBSS creator(a/g mode) */ | |
49 | /* */ | |
50 | /************************************************************************************/ | |
51 | void zfResetSupportRate(zdev_t* dev, u8_t type) | |
52 | { | |
53 | zmw_get_wlan_dev(dev); | |
54 | ||
55 | switch(type) | |
56 | { | |
57 | case ZM_DEFAULT_SUPPORT_RATE_ZERO: | |
58 | wd->bRate = 0; | |
59 | wd->bRateBasic = 0; | |
60 | wd->gRate = 0; | |
61 | wd->gRateBasic = 0; | |
62 | break; | |
63 | case ZM_DEFAULT_SUPPORT_RATE_DISCONNECT: | |
64 | wd->bRate = 0xf; | |
65 | wd->bRateBasic = 0xf; | |
66 | wd->gRate = 0xff; | |
67 | wd->gRateBasic = 0x15; | |
68 | break; | |
69 | case ZM_DEFAULT_SUPPORT_RATE_IBSS_B: | |
70 | wd->bRate = 0xf; | |
71 | wd->bRateBasic = 0xf; | |
72 | wd->gRate = 0; | |
73 | wd->gRateBasic = 0; | |
74 | break; | |
75 | case ZM_DEFAULT_SUPPORT_RATE_IBSS_AG: | |
76 | wd->bRate = 0xf; | |
77 | wd->bRateBasic = 0xf; | |
78 | wd->gRate = 0xff; | |
79 | wd->gRateBasic = 0; | |
80 | break; | |
81 | } | |
82 | } | |
83 | ||
84 | void zfUpdateSupportRate(zdev_t* dev, u8_t* rateArray) | |
85 | { | |
86 | u8_t bRate=0, bRateBasic=0, gRate=0, gRateBasic=0; | |
87 | u8_t length = rateArray[1]; | |
88 | u8_t i, j; | |
89 | ||
90 | zmw_get_wlan_dev(dev); | |
91 | ||
92 | for(i=2; i<length+2; i++) | |
93 | { | |
94 | for(j=0; j<4; j++) | |
95 | { | |
96 | if ( (rateArray[i] & 0x7f) == zg11bRateTbl[j] ) | |
97 | { | |
98 | bRate |= (1 << j); | |
99 | if ( rateArray[i] & 0x80 ) | |
100 | { | |
101 | bRateBasic |= (1 << j); | |
102 | } | |
103 | } | |
104 | } | |
105 | ||
106 | if ( j == 4 ) | |
107 | { | |
108 | for(j=0; j<8; j++) | |
109 | { | |
110 | if ( (rateArray[i] & 0x7f) == zg11gRateTbl[j] ) | |
111 | { | |
112 | gRate |= (1 << j); | |
113 | if ( rateArray[i] & 0x80 ) | |
114 | { | |
115 | gRateBasic |= (1 << j); | |
116 | } | |
117 | } | |
118 | } | |
119 | } | |
120 | } | |
121 | ||
122 | ||
123 | wd->bRate |= bRate; | |
124 | wd->bRateBasic |= bRateBasic; | |
125 | wd->gRate |= gRate; | |
126 | wd->gRateBasic |= gRateBasic; | |
127 | } | |
128 | ||
129 | u8_t zfIsGOnlyMode(zdev_t* dev, u16_t frequency, u8_t* rateArray) | |
130 | { | |
131 | u8_t length = rateArray[1]; | |
132 | u8_t i, j; | |
133 | ||
134 | if (frequency < 3000) { | |
135 | for (i = 2; i < length+2; i++) { | |
136 | for (j = 0; j < 8; j++) { | |
137 | if ( ((rateArray[i] & 0x7f) == zg11gRateTbl[j]) | |
138 | && (rateArray[i] & 0x80) ) { | |
139 | return 1; | |
140 | } | |
141 | } | |
142 | } | |
143 | } | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
148 | void zfGatherBMode(zdev_t* dev, u8_t* rateArray, u8_t* extrateArray) | |
149 | { | |
150 | u8_t gatherBMode[ZM_MAX_SUPP_RATES_IE_SIZE + 2]; | |
151 | u8_t i, j, k = 0; | |
152 | u8_t length; | |
153 | ||
154 | gatherBMode[0] = ZM_WLAN_EID_SUPPORT_RATE; | |
155 | gatherBMode[1] = 0; | |
156 | ||
157 | length = rateArray[1]; | |
158 | for (i = 2; i < length+2; i++) { | |
159 | for (j = 0; j < 4; j++) { | |
160 | if ( (rateArray[i] & 0x7f) == zg11bRateTbl[j] ) { | |
161 | gatherBMode[2+k] = rateArray[i]; | |
162 | ||
163 | gatherBMode[1]++; | |
164 | k++; | |
165 | } | |
166 | } | |
167 | } | |
168 | ||
169 | length = extrateArray[1]; | |
170 | for (i = 2; i < length+2; i++) { | |
171 | for (j = 0; j < 4; j++) { | |
172 | if ( (extrateArray[i] & 0x7f) == zg11bRateTbl[j] ) { | |
173 | gatherBMode[2+k] = extrateArray[i]; | |
174 | ||
175 | gatherBMode[1]++; | |
176 | k++; | |
177 | } | |
178 | } | |
179 | } | |
180 | ||
181 | extrateArray[0] = extrateArray[1] = 0; | |
182 | zfMemoryCopy(rateArray, gatherBMode, gatherBMode[1]+2); | |
183 | } | |
184 | ||
185 | u16_t zfGetRandomNumber(zdev_t* dev, u16_t initValue) | |
186 | { | |
187 | #if 0 | |
188 | /* Compiler/Linker error on Linux */ | |
189 | if ( initValue ) | |
190 | { | |
191 | srand(initValue); | |
192 | } | |
193 | ||
194 | return ((u16_t)rand()); | |
195 | #endif | |
196 | return 0; | |
197 | } | |
198 | ||
199 | u8_t zfPSDeviceSleep(zdev_t* dev) | |
200 | { | |
201 | //zmw_get_wlan_dev(dev); | |
202 | ||
203 | /* enter PS mode */ | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
208 | u8_t zcOfdmPhyCrtlToRate[] = | |
209 | { | |
210 | /* 0x8=48M, 0x9=24M, 0xa=12M, 0xb=6M, 0xc=54M, 0xd=36M, 0xe=18M, 0xf=9M */ | |
211 | 10, 8, 6, 4, 11, 9, 7, 5 | |
212 | }; | |
213 | ||
214 | u8_t zfPhyCtrlToRate(u32_t phyCtrl) | |
215 | { | |
216 | u32_t mt, mcs, sg; | |
217 | u8_t rate = 0; | |
218 | ||
219 | mt = phyCtrl & 0x3; | |
220 | mcs = (phyCtrl>>18) & 0x3f; | |
221 | sg = (phyCtrl>>31) & 0x1; | |
222 | ||
223 | if ((mt == 0) && (mcs <=3)) | |
224 | { | |
225 | rate = (u8_t)mcs; | |
226 | } | |
227 | else if ((mt == 1) && (mcs >= 0x8) && (mcs <= 0xf)) | |
228 | { | |
229 | rate = zcOfdmPhyCrtlToRate[mcs-8]; | |
230 | } | |
231 | else if ((mt == 2) && (mcs <= 15)) | |
232 | { | |
233 | rate = (u8_t)mcs + 12; | |
234 | if(sg) { | |
235 | if (mcs != 7) | |
236 | { | |
237 | rate = (u8_t)mcs + 12 + 2; | |
238 | } | |
239 | else //MCS7-SG | |
240 | { | |
241 | rate = (u8_t)30; | |
242 | } | |
243 | } | |
244 | } | |
245 | ||
246 | return rate; | |
247 | } | |
248 | ||
249 | ||
250 | void zfCoreEvent(zdev_t* dev, u16_t event, u8_t* rsp) | |
251 | { | |
252 | u16_t i; | |
253 | zbuf_t* psBuf; | |
254 | u8_t moreData; | |
255 | u8_t vap = 0; | |
256 | u8_t peerIdx; | |
257 | s8_t res; | |
258 | zmw_get_wlan_dev(dev); | |
259 | zmw_declare_for_critical_section(); | |
260 | ||
261 | ||
262 | if (event == 0) //Beacon Event | |
263 | { | |
264 | if ( wd->wlanMode == ZM_MODE_AP ) | |
265 | { | |
266 | zfApSendBeacon(dev); | |
267 | ||
268 | if (wd->CurrentDtimCount == 0) | |
269 | { | |
270 | /* TODO : Send queued broadcast frames at BC/MC event */ | |
271 | do | |
272 | { | |
273 | psBuf = NULL; | |
274 | moreData = 0; | |
275 | zmw_enter_critical_section(dev); | |
276 | if (wd->ap.bcmcTail[vap] != wd->ap.bcmcHead[vap]) | |
277 | { | |
278 | //zm_msg0_mm(ZM_LV_0, "Send BCMC frames"); | |
279 | psBuf = wd->ap.bcmcArray[vap][wd->ap.bcmcHead[vap]]; | |
280 | wd->ap.bcmcHead[vap] = (wd->ap.bcmcHead[vap] + 1) | |
281 | & (ZM_BCMC_ARRAY_SIZE - 1); | |
282 | if (wd->ap.bcmcTail[vap] != wd->ap.bcmcHead[vap]) | |
283 | { | |
284 | moreData = 0x20; | |
285 | } | |
286 | } | |
287 | zmw_leave_critical_section(dev); | |
288 | if (psBuf != NULL) | |
289 | { | |
290 | /* TODO : config moreData bit */ | |
291 | zfTxSendEth(dev, psBuf, 0, ZM_EXTERNAL_ALLOC_BUF, | |
292 | moreData); | |
293 | } | |
294 | } while(psBuf != NULL); | |
295 | ||
296 | } | |
297 | } | |
298 | else | |
299 | { | |
300 | /* STA mode */ | |
301 | if ( wd->sta.powerSaveMode > ZM_STA_PS_NONE ) | |
302 | { | |
303 | /* send queued packets */ | |
304 | for(i=0; i<wd->sta.staPSDataCount; i++) | |
305 | { | |
306 | zfTxSendEth(dev, wd->sta.staPSDataQueue[i], 0, | |
307 | ZM_EXTERNAL_ALLOC_BUF, 0); | |
308 | } | |
309 | ||
310 | wd->sta.staPSDataCount = 0; | |
311 | } | |
312 | ||
313 | if ( wd->wlanMode == ZM_MODE_IBSS ) | |
314 | { | |
315 | zfStaSendBeacon(dev); | |
316 | wd->sta.ibssAtimTimer = ZM_BIT_15 | wd->sta.atimWindow; | |
317 | } | |
318 | ||
319 | zfPowerSavingMgrPreTBTTInterrupt(dev); | |
320 | } | |
321 | } //if (event == 0) //Beacon Event | |
322 | else if (event == 1) //Retry completed event | |
323 | { | |
324 | u32_t retryRate; | |
325 | ||
326 | retryRate = (u32_t)(rsp[6]) + (((u32_t)(rsp[7]))<<8) | |
327 | + (((u32_t)(rsp[8]))<<16) + (((u32_t)(rsp[9]))<<24); | |
328 | /* Degrade Tx Rate */ | |
329 | if (wd->wlanMode == ZM_MODE_AP) | |
330 | { | |
331 | zmw_enter_critical_section(dev); | |
92363b52 JP |
332 | i = zfApFindSta(dev, (u16_t*)rsp); |
333 | if (i != 0xffff) | |
4bd43f50 LR |
334 | { |
335 | zfRateCtrlTxFailEvent(dev, &wd->ap.staTable[i].rcCell, 0,(u32_t)zfPhyCtrlToRate(retryRate)); | |
336 | } | |
337 | zmw_leave_critical_section(dev); | |
338 | } | |
339 | else | |
340 | { | |
341 | zmw_enter_critical_section(dev); | |
342 | res = zfStaFindOppositeByMACAddr(dev, (u16_t*)rsp, &peerIdx); | |
343 | if ( res == 0 ) | |
344 | { | |
345 | zfRateCtrlTxFailEvent(dev, &wd->sta.oppositeInfo[peerIdx].rcCell, 0,(u32_t)zfPhyCtrlToRate(retryRate)); | |
346 | } | |
347 | zmw_leave_critical_section(dev); | |
348 | } | |
349 | } //else if (event == 1) //Retry completed event | |
350 | else if (event == 2) //Tx Fail event | |
351 | { | |
352 | u32_t retryRate; | |
353 | ||
354 | retryRate = (u32_t)(rsp[6]) + (((u32_t)(rsp[7]))<<8) | |
355 | + (((u32_t)(rsp[8]))<<16) + (((u32_t)(rsp[9]))<<24); | |
356 | ||
357 | /* Degrade Tx Rate */ | |
358 | if (wd->wlanMode == ZM_MODE_AP) | |
359 | { | |
360 | zmw_enter_critical_section(dev); | |
92363b52 JP |
361 | i = zfApFindSta(dev, (u16_t*)rsp); |
362 | if (i != 0xffff) | |
4bd43f50 LR |
363 | { |
364 | zfRateCtrlTxFailEvent(dev, &wd->ap.staTable[i].rcCell, 0,(u32_t)zfPhyCtrlToRate(retryRate)); | |
365 | } | |
366 | zmw_leave_critical_section(dev); | |
367 | ||
368 | zfApSendFailure(dev, rsp); | |
369 | } | |
370 | else | |
371 | { | |
372 | zmw_enter_critical_section(dev); | |
373 | res = zfStaFindOppositeByMACAddr(dev, (u16_t*)rsp, &peerIdx); | |
374 | if ( res == 0 ) | |
375 | { | |
376 | zfRateCtrlTxFailEvent(dev, &wd->sta.oppositeInfo[peerIdx].rcCell, 0,(u32_t)zfPhyCtrlToRate(retryRate)); | |
377 | } | |
378 | zmw_leave_critical_section(dev); | |
379 | } | |
380 | } //else if (event == 2) //Tx Fail event | |
381 | else if (event == 3) //Tx Comp event | |
382 | { | |
383 | u32_t retryRate; | |
384 | ||
385 | retryRate = (u32_t)(rsp[6]) + (((u32_t)(rsp[7]))<<8) | |
386 | + (((u32_t)(rsp[8]))<<16) + (((u32_t)(rsp[9]))<<24); | |
387 | ||
388 | /* TODO : Tx completed, used for rate control probing */ | |
389 | if (wd->wlanMode == ZM_MODE_AP) | |
390 | { | |
391 | zmw_enter_critical_section(dev); | |
92363b52 JP |
392 | i = zfApFindSta(dev, (u16_t*)rsp); |
393 | if (i != 0xffff) | |
4bd43f50 LR |
394 | { |
395 | zfRateCtrlTxSuccessEvent(dev, &wd->ap.staTable[i].rcCell, zfPhyCtrlToRate(retryRate)); | |
396 | } | |
397 | zmw_leave_critical_section(dev); | |
398 | } | |
399 | else | |
400 | { | |
401 | zmw_enter_critical_section(dev); | |
402 | res = zfStaFindOppositeByMACAddr(dev, (u16_t*)rsp, &peerIdx); | |
403 | if ( res == 0 ) | |
404 | { | |
405 | zfRateCtrlTxSuccessEvent(dev, &wd->sta.oppositeInfo[peerIdx].rcCell, zfPhyCtrlToRate(retryRate)); | |
406 | } | |
407 | zmw_leave_critical_section(dev); | |
408 | } | |
409 | } //else if (event == 3) //Tx Comp event | |
410 | else if (event == 4) //BA failed count | |
411 | { | |
412 | u32_t fail; | |
413 | u32_t rate; | |
414 | peerIdx = 0; | |
415 | ||
416 | fail=((u32_t*)rsp)[0] & 0xFFFF; | |
417 | rate=((u32_t*)rsp)[0] >> 16; | |
418 | ||
419 | if (rate > 15) { | |
420 | rate = (rate & 0xF) + 12 + 2; | |
421 | } | |
422 | else { | |
423 | rate = rate + 12; | |
424 | } | |
425 | ||
426 | zmw_enter_critical_section(dev); | |
427 | zfRateCtrlTxFailEvent(dev, &wd->sta.oppositeInfo[peerIdx].rcCell, (u8_t)rate, fail); | |
428 | zmw_leave_critical_section(dev); | |
429 | } | |
430 | } | |
431 | ||
432 | void zfBeaconCfgInterrupt(zdev_t* dev, u8_t* rsp) | |
433 | { | |
434 | u32_t txBeaconCounter; | |
435 | ||
436 | zmw_get_wlan_dev(dev); | |
437 | ||
438 | zmw_declare_for_critical_section(); | |
439 | ||
440 | if ( wd->wlanMode == ZM_MODE_IBSS ) | |
441 | { | |
442 | txBeaconCounter = *((u32_t *)rsp); | |
443 | if ( wd->sta.beaconTxCnt != txBeaconCounter ) | |
444 | { | |
445 | wd->sta.txBeaconInd = 1; | |
446 | ||
447 | zmw_enter_critical_section(dev); | |
448 | wd->tickIbssSendBeacon = 0; | |
449 | zmw_leave_critical_section(dev); | |
450 | } | |
451 | else | |
452 | { | |
453 | wd->sta.txBeaconInd = 0; | |
454 | } | |
455 | ||
456 | #ifdef ZM_ENABLE_IBSS_DELAYED_JOIN_INDICATION | |
457 | if ( wd->sta.txBeaconInd && wd->sta.ibssDelayedInd ) | |
458 | { | |
459 | if (wd->zfcbIbssPartnerNotify != NULL) | |
460 | { | |
461 | wd->zfcbIbssPartnerNotify(dev, 1, &wd->sta.ibssDelayedIndEvent); | |
462 | } | |
463 | ||
464 | wd->sta.ibssDelayedInd = 0; | |
465 | } | |
466 | #endif | |
467 | ||
468 | wd->sta.beaconTxCnt = txBeaconCounter; | |
469 | ||
470 | // Need to check if the time is expired after ATIM window?? | |
471 | ||
472 | // Check if we have buffered any data for those stations that are sleeping | |
473 | // If it's true, then transmitting ATIM pkt to notify them | |
474 | ||
475 | #ifdef ZM_ENABLE_IBSS_PS | |
476 | // TODO: Need to check if the station receive our ATIM pkt??? | |
477 | zfStaIbssPSSend(dev); | |
478 | ||
479 | if ( wd->sta.atimWindow == 0 ) | |
480 | { | |
481 | // We won't receive the end of ATIM isr so we fake it | |
482 | zfPowerSavingMgrAtimWinExpired(dev); | |
483 | } | |
484 | #endif | |
485 | } | |
486 | } | |
487 | ||
488 | void zfEndOfAtimWindowInterrupt(zdev_t* dev) | |
489 | { | |
490 | #ifdef ZM_ENABLE_IBSS_PS | |
491 | zmw_get_wlan_dev(dev); | |
492 | ||
493 | if ( wd->wlanMode == ZM_MODE_IBSS ) | |
494 | { | |
495 | // Transmit any queued pkt for the stations!! | |
496 | zfPowerSavingMgrAtimWinExpired(dev); | |
497 | } | |
498 | #endif | |
499 | } |