Root/drivers/staging/rtl8192e/rtl819x_HTProc.c

1/******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 *
4 * This program is distributed in the hope that it will be useful, but WITHOUT
5 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
6 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
7 * more details.
8 *
9 * You should have received a copy of the GNU General Public License along with
10 * this program; if not, write to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
12 *
13 * The full GNU General Public License is included in this distribution in the
14 * file called LICENSE.
15 *
16 * Contact Information:
17 * wlanfae <wlanfae@realtek.com>
18******************************************************************************/
19#include "rtllib.h"
20#include "rtl819x_HT.h"
21u8 MCS_FILTER_ALL[16] = {
22    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
23    0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
24};
25
26u8 MCS_FILTER_1SS[16] = {
27    0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
28    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
29;
30
31u16 MCS_DATA_RATE[2][2][77] = {
32    {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
33     260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
34     468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
35     182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
36     181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
37     312, 351, 312, 351, 390, 390, 429} ,
38    {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
39     43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
40     578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
41     173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
42     231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
43     433, 433, 477} } ,
44    {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
45     540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
46     864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
47     378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
48     378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
49     729, 648, 729, 810, 810, 891},
50    {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
51     600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
52     960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
53     420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
54     420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
55     810, 720, 810, 900, 900, 990} }
56};
57
58static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
59
60static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
61
62static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
63
64static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
65
66static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
67
68static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
69
70static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
71
72static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
73
74static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
75
76static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
77
78static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
79
80static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
81
82void HTUpdateDefaultSetting(struct rtllib_device *ieee)
83{
84    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
85
86    pHTInfo->bAcceptAddbaReq = 1;
87
88    pHTInfo->bRegShortGI20MHz = 1;
89    pHTInfo->bRegShortGI40MHz = 1;
90
91    pHTInfo->bRegBW40MHz = 1;
92
93    if (pHTInfo->bRegBW40MHz)
94        pHTInfo->bRegSuppCCK = 1;
95    else
96        pHTInfo->bRegSuppCCK = true;
97
98    pHTInfo->nAMSDU_MaxSize = 7935UL;
99    pHTInfo->bAMSDU_Support = 0;
100
101    pHTInfo->bAMPDUEnable = 1;
102    pHTInfo->AMPDU_Factor = 2;
103    pHTInfo->MPDU_Density = 0;
104
105    pHTInfo->SelfMimoPs = 3;
106    if (pHTInfo->SelfMimoPs == 2)
107        pHTInfo->SelfMimoPs = 3;
108    ieee->bTxDisableRateFallBack = 0;
109    ieee->bTxUseDriverAssingedRate = 0;
110
111    ieee->bTxEnableFwCalcDur = 1;
112
113    pHTInfo->bRegRT2RTAggregation = 1;
114
115    pHTInfo->bRegRxReorderEnable = 1;
116    pHTInfo->RxReorderWinSize = 64;
117    pHTInfo->RxReorderPendingTime = 30;
118}
119
120void HTDebugHTCapability(u8 *CapIE, u8 *TitleString)
121{
122
123    static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
124    struct ht_capab_ele *pCapELE;
125
126    if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) {
127        RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
128        pCapELE = (struct ht_capab_ele *)(&CapIE[4]);
129    } else
130        pCapELE = (struct ht_capab_ele *)(&CapIE[0]);
131
132    RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Capability>. Called by %s\n",
133             TitleString);
134
135    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupported Channel Width = %s\n",
136             (pCapELE->ChlWidth) ? "20MHz" : "20/40MHz");
137    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport Short GI for 20M = %s\n",
138             (pCapELE->ShortGI20Mhz) ? "YES" : "NO");
139    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport Short GI for 40M = %s\n",
140             (pCapELE->ShortGI40Mhz) ? "YES" : "NO");
141    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport TX STBC = %s\n",
142             (pCapELE->TxSTBC) ? "YES" : "NO");
143    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMax AMSDU Size = %s\n",
144             (pCapELE->MaxAMSDUSize) ? "3839" : "7935");
145    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport CCK in 20/40 mode = %s\n",
146             (pCapELE->DssCCk) ? "YES" : "NO");
147    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMax AMPDU Factor = %d\n",
148             pCapELE->MaxRxAMPDUFactor);
149    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMPDU Density = %d\n",
150             pCapELE->MPDUDensity);
151    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n",
152             pCapELE->MCS[0], pCapELE->MCS[1], pCapELE->MCS[2],
153             pCapELE->MCS[3], pCapELE->MCS[4]);
154    return;
155
156}
157
158void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
159{
160
161    static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
162    struct ht_info_ele *pHTInfoEle;
163
164    if (!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) {
165        RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
166        pHTInfoEle = (struct ht_info_ele *)(&InfoIE[4]);
167    } else
168        pHTInfoEle = (struct ht_info_ele *)(&InfoIE[0]);
169
170
171    RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Information Element>. "
172             "Called by %s\n", TitleString);
173
174    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tPrimary channel = %d\n",
175             pHTInfoEle->ControlChl);
176    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSenondary channel =");
177    switch (pHTInfoEle->ExtChlOffset) {
178    case 0:
179        RTLLIB_DEBUG(RTLLIB_DL_HT, "Not Present\n");
180        break;
181    case 1:
182        RTLLIB_DEBUG(RTLLIB_DL_HT, "Upper channel\n");
183        break;
184    case 2:
185        RTLLIB_DEBUG(RTLLIB_DL_HT, "Reserved. Eooro!!!\n");
186        break;
187    case 3:
188        RTLLIB_DEBUG(RTLLIB_DL_HT, "Lower Channel\n");
189        break;
190    }
191    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tRecommended channel width = %s\n",
192             (pHTInfoEle->RecommemdedTxWidth) ? "20Mhz" : "40Mhz");
193
194    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tOperation mode for protection = ");
195    switch (pHTInfoEle->OptMode) {
196    case 0:
197        RTLLIB_DEBUG(RTLLIB_DL_HT, "No Protection\n");
198        break;
199    case 1:
200        RTLLIB_DEBUG(RTLLIB_DL_HT, "HT non-member protection mode\n");
201        break;
202    case 2:
203        RTLLIB_DEBUG(RTLLIB_DL_HT, "Suggest to open protection\n");
204        break;
205    case 3:
206        RTLLIB_DEBUG(RTLLIB_DL_HT, "HT mixed mode\n");
207        break;
208    }
209
210    RTLLIB_DEBUG(RTLLIB_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x]"
211             "[%x]\n", pHTInfoEle->BasicMSC[0], pHTInfoEle->BasicMSC[1],
212             pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3],
213             pHTInfoEle->BasicMSC[4]);
214    return;
215}
216
217static bool IsHTHalfNmode40Bandwidth(struct rtllib_device *ieee)
218{
219    bool retValue = false;
220    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
221
222    if (pHTInfo->bCurrentHTSupport == false)
223        retValue = false;
224    else if (pHTInfo->bRegBW40MHz == false)
225        retValue = false;
226    else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
227        retValue = false;
228    else if (((struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf))->ChlWidth)
229        retValue = true;
230    else
231        retValue = false;
232
233    return retValue;
234}
235
236static bool IsHTHalfNmodeSGI(struct rtllib_device *ieee, bool is40MHz)
237{
238    bool retValue = false;
239    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
240
241    if (pHTInfo->bCurrentHTSupport == false)
242        retValue = false;
243    else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
244        retValue = false;
245    else if (is40MHz) {
246        if (((struct ht_capab_ele *)
247            (pHTInfo->PeerHTCapBuf))->ShortGI40Mhz)
248            retValue = true;
249        else
250            retValue = false;
251    } else {
252        if (((struct ht_capab_ele *)
253           (pHTInfo->PeerHTCapBuf))->ShortGI20Mhz)
254            retValue = true;
255        else
256            retValue = false;
257    }
258
259    return retValue;
260}
261
262u16 HTHalfMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
263{
264
265    u8 is40MHz;
266    u8 isShortGI;
267
268    is40MHz = (IsHTHalfNmode40Bandwidth(ieee)) ? 1 : 0;
269    isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz)) ? 1 : 0;
270
271    return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
272}
273
274
275u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
276{
277    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
278
279    u8 is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
280    u8 isShortGI = (pHTInfo->bCurBW40MHz) ?
281                ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
282                ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
283    return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
284}
285
286u16 TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
287{
288    u16 CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
289                   0x24, 0x30, 0x48, 0x60, 0x6c};
290    u8 is40MHz = 0;
291    u8 isShortGI = 0;
292
293    if (nDataRate < 12) {
294        return CCKOFDMRate[nDataRate];
295    } else {
296        if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
297            is40MHz = 0;
298            isShortGI = 0;
299        } else if (nDataRate >= 0x20 && nDataRate <= 0x2f) {
300            is40MHz = 1;
301            isShortGI = 0;
302
303        } else if (nDataRate >= 0x30 && nDataRate <= 0x3f) {
304            is40MHz = 0;
305            isShortGI = 1;
306        } else if (nDataRate >= 0x40 && nDataRate <= 0x4f) {
307            is40MHz = 1;
308            isShortGI = 1;
309        }
310        return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
311    }
312}
313
314bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
315{
316    bool retValue = false;
317    struct rtllib_network *net = &ieee->current_network;
318
319    if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
320        (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
321        (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
322        (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
323        (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
324        (net->ralink_cap_exist))
325        retValue = true;
326    else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
327        !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
328        !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
329        (net->broadcom_cap_exist))
330        retValue = true;
331    else if (net->bssht.bdRT2RTAggregation)
332        retValue = true;
333    else
334        retValue = false;
335
336    return retValue;
337}
338
339static void HTIOTPeerDetermine(struct rtllib_device *ieee)
340{
341    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
342    struct rtllib_network *net = &ieee->current_network;
343    if (net->bssht.bdRT2RTAggregation) {
344        pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
345        if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_92SE)
346            pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
347        if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_SOFTAP)
348            pHTInfo->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
349    } else if (net->broadcom_cap_exist)
350        pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
351    else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
352         !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
353         !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3))
354        pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
355    else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
356         (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
357         (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
358         (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
359         (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
360          net->ralink_cap_exist)
361        pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
362    else if ((net->atheros_cap_exist) ||
363        (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
364        (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0))
365        pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
366    else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
367          net->cisco_cap_exist)
368        pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
369    else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
370          net->marvell_cap_exist)
371        pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
372    else if (net->airgo_cap_exist)
373        pHTInfo->IOTPeer = HT_IOT_PEER_AIRGO;
374    else
375        pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
376
377    RTLLIB_DEBUG(RTLLIB_DL_IOT, "Joseph debug!! IOTPEER: %x\n",
378             pHTInfo->IOTPeer);
379}
380
381static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
382{
383    return 0;
384}
385
386
387static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
388{
389    bool retValue = false;
390
391    return retValue;
392}
393
394static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
395{
396    return false;
397}
398
399static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee, u8 *PeerMacAddr)
400{
401    return false;
402}
403
404static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
405                 struct rtllib_network *network)
406{
407    u8 retValue = 0;
408
409
410    if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
411        retValue = 1;
412
413    return retValue;
414}
415
416static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
417{
418    u8 retValue = 0;
419
420    if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
421        retValue = 1;
422    return retValue;
423}
424
425static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
426{
427    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
428    pHTInfo->IOTRaFunc &= HT_IOT_RAFUNC_DISABLE_ALL;
429
430    if (pHTInfo->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
431        pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_PEER_1R;
432
433    if (pHTInfo->IOTAction & HT_IOT_ACT_AMSDU_ENABLE)
434        pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_TX_AMSDU;
435
436}
437
438void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo)
439{
440    pHTInfo->IOTAction = 0;
441    pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
442    pHTInfo->IOTRaFunc = 0;
443}
444
445void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
446                  u8 *len, u8 IsEncrypt, bool bAssoc)
447{
448    struct rt_hi_throughput *pHT = ieee->pHTInfo;
449    struct ht_capab_ele *pCapELE = NULL;
450
451    if ((posHTCap == NULL) || (pHT == NULL)) {
452        RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTCap or pHTInfo can't be "
453                 "null in HTConstructCapabilityElement()\n");
454        return;
455    }
456    memset(posHTCap, 0, *len);
457
458    if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
459        u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
460        memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
461        pCapELE = (struct ht_capab_ele *)&(posHTCap[4]);
462        *len = 30 + 2;
463    } else {
464        pCapELE = (struct ht_capab_ele *)posHTCap;
465        *len = 26 + 2;
466    }
467
468    pCapELE->AdvCoding = 0;
469    if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
470        pCapELE->ChlWidth = 0;
471    else
472        pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
473
474    pCapELE->MimoPwrSave = pHT->SelfMimoPs;
475    pCapELE->GreenField = 0;
476    pCapELE->ShortGI20Mhz = 1;
477    pCapELE->ShortGI40Mhz = 1;
478
479    pCapELE->TxSTBC = 1;
480    pCapELE->RxSTBC = 0;
481    pCapELE->DelayBA = 0;
482    pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
483    pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
484    pCapELE->PSMP = 0;
485    pCapELE->LSigTxopProtect = 0;
486
487
488    RTLLIB_DEBUG(RTLLIB_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d "
489             "DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize,
490             pCapELE->DssCCk);
491
492    if (IsEncrypt) {
493        pCapELE->MPDUDensity = 7;
494        pCapELE->MaxRxAMPDUFactor = 2;
495    } else {
496        pCapELE->MaxRxAMPDUFactor = 3;
497        pCapELE->MPDUDensity = 0;
498    }
499
500    memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
501    memset(&pCapELE->ExtHTCapInfo, 0, 2);
502    memset(pCapELE->TxBFCap, 0, 4);
503
504    pCapELE->ASCap = 0;
505
506    if (bAssoc) {
507        if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
508            pCapELE->MCS[1] &= 0x7f;
509
510        if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
511            pCapELE->MCS[1] &= 0xbf;
512
513        if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
514            pCapELE->MCS[1] &= 0x00;
515
516        if (pHT->IOTAction & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
517            pCapELE->ShortGI40Mhz = 0;
518
519        if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
520            pCapELE->ChlWidth = 0;
521            pCapELE->MCS[1] = 0;
522        }
523    }
524    return;
525}
526
527void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
528                u8 *len, u8 IsEncrypt)
529{
530    struct rt_hi_throughput *pHT = ieee->pHTInfo;
531    struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
532    if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
533        RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTInfo or pHTInfoEle can't be "
534                 "null in HTConstructInfoElement()\n");
535        return;
536    }
537
538    memset(posHTInfo, 0, *len);
539    if ((ieee->iw_mode == IW_MODE_ADHOC) ||
540        (ieee->iw_mode == IW_MODE_MASTER)) {
541        pHTInfoEle->ControlChl = ieee->current_network.channel;
542        pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false) ?
543                        HT_EXTCHNL_OFFSET_NO_EXT :
544                        (ieee->current_network.channel <= 6)
545                        ? HT_EXTCHNL_OFFSET_UPPER :
546                        HT_EXTCHNL_OFFSET_LOWER);
547        pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
548        pHTInfoEle->RIFS = 0;
549        pHTInfoEle->PSMPAccessOnly = 0;
550        pHTInfoEle->SrvIntGranularity = 0;
551        pHTInfoEle->OptMode = pHT->CurrentOpMode;
552        pHTInfoEle->NonGFDevPresent = 0;
553        pHTInfoEle->DualBeacon = 0;
554        pHTInfoEle->SecondaryBeacon = 0;
555        pHTInfoEle->LSigTxopProtectFull = 0;
556        pHTInfoEle->PcoActive = 0;
557        pHTInfoEle->PcoPhase = 0;
558
559        memset(pHTInfoEle->BasicMSC, 0, 16);
560
561
562        *len = 22 + 2;
563
564    } else {
565        *len = 0;
566    }
567    return;
568}
569
570void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
571                u8 *len)
572{
573    if (posRT2RTAgg == NULL) {
574        RTLLIB_DEBUG(RTLLIB_DL_ERR, "posRT2RTAgg can't be null in "
575                 "HTConstructRT2RTAggElement()\n");
576        return;
577    }
578    memset(posRT2RTAgg, 0, *len);
579    *posRT2RTAgg++ = 0x00;
580    *posRT2RTAgg++ = 0xe0;
581    *posRT2RTAgg++ = 0x4c;
582    *posRT2RTAgg++ = 0x02;
583    *posRT2RTAgg++ = 0x01;
584
585    *posRT2RTAgg = 0x30;
586
587    if (ieee->bSupportRemoteWakeUp)
588        *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
589
590    *len = 6 + 2;
591
592    return;
593}
594
595static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
596{
597    u8 i;
598    if (pOperateMCS == NULL) {
599        RTLLIB_DEBUG(RTLLIB_DL_ERR, "pOperateMCS can't be null"
600                 " in HT_PickMCSRate()\n");
601        return false;
602    }
603
604    switch (ieee->mode) {
605    case IEEE_A:
606    case IEEE_B:
607    case IEEE_G:
608        for (i = 0; i <= 15; i++)
609            pOperateMCS[i] = 0;
610        break;
611    case IEEE_N_24G:
612    case IEEE_N_5G:
613        pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
614        pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
615        pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
616        break;
617    default:
618        break;
619
620    }
621
622    return true;
623}
624
625u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
626               u8 *pMCSFilter)
627{
628    u8 i, j;
629    u8 bitMap;
630    u8 mcsRate = 0;
631    u8 availableMcsRate[16];
632    if (pMCSRateSet == NULL || pMCSFilter == NULL) {
633        RTLLIB_DEBUG(RTLLIB_DL_ERR, "pMCSRateSet or pMCSFilter can't "
634                 "be null in HTGetHighestMCSRate()\n");
635        return false;
636    }
637    for (i = 0; i < 16; i++)
638        availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
639
640    for (i = 0; i < 16; i++) {
641        if (availableMcsRate[i] != 0)
642            break;
643    }
644    if (i == 16)
645        return false;
646
647    for (i = 0; i < 16; i++) {
648        if (availableMcsRate[i] != 0) {
649            bitMap = availableMcsRate[i];
650            for (j = 0; j < 8; j++) {
651                if ((bitMap%2) != 0) {
652                    if (HTMcsToDataRate(ieee, (8*i+j)) >
653                        HTMcsToDataRate(ieee, mcsRate))
654                        mcsRate = (8*i+j);
655                }
656                bitMap = bitMap>>1;
657            }
658        }
659    }
660    return mcsRate | 0x80;
661}
662
663u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS, u8 *pOperateMCS)
664{
665
666    u8 i;
667
668    for (i = 0; i <= 15; i++)
669        pOperateMCS[i] = ieee->Regdot11TxHTOperationalRateSet[i] &
670                 pSupportMCS[i];
671
672    HT_PickMCSRate(ieee, pOperateMCS);
673
674    if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
675        pOperateMCS[1] = 0;
676
677    for (i = 2; i <= 15; i++)
678        pOperateMCS[i] = 0;
679
680    return true;
681}
682
683void HTSetConnectBwMode(struct rtllib_device *ieee,
684            enum ht_channel_width Bandwidth,
685            enum ht_extchnl_offset Offset);
686
687void HTOnAssocRsp(struct rtllib_device *ieee)
688{
689    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
690    struct ht_capab_ele *pPeerHTCap = NULL;
691    struct ht_info_ele *pPeerHTInfo = NULL;
692    u16 nMaxAMSDUSize = 0;
693    u8 *pMcsFilter = NULL;
694
695    static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
696    static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
697
698    if (pHTInfo->bCurrentHTSupport == false) {
699        RTLLIB_DEBUG(RTLLIB_DL_ERR, "<=== HTOnAssocRsp(): "
700                 "HT_DISABLE\n");
701        return;
702    }
703    RTLLIB_DEBUG(RTLLIB_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
704
705    if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
706        pPeerHTCap = (struct ht_capab_ele *)(&pHTInfo->PeerHTCapBuf[4]);
707    else
708        pPeerHTCap = (struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf);
709
710    if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
711        pPeerHTInfo = (struct ht_info_ele *)
712                 (&pHTInfo->PeerHTInfoBuf[4]);
713    else
714        pPeerHTInfo = (struct ht_info_ele *)(pHTInfo->PeerHTInfoBuf);
715
716    RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA | RTLLIB_DL_HT, pPeerHTCap,
717              sizeof(struct ht_capab_ele));
718    HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
719              (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
720    pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
721                 true : false);
722
723    pHTInfo->bCurShortGI20MHz = ((pHTInfo->bRegShortGI20MHz) ?
724                    ((pPeerHTCap->ShortGI20Mhz == 1) ?
725                    true : false) : false);
726    pHTInfo->bCurShortGI40MHz = ((pHTInfo->bRegShortGI40MHz) ?
727                     ((pPeerHTCap->ShortGI40Mhz == 1) ?
728                     true : false) : false);
729
730    pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK) ?
731                   ((pPeerHTCap->DssCCk == 1) ? true :
732                   false) : false);
733
734
735    pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
736
737    nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
738
739    if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
740        pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
741    else
742        pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
743
744    pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
745    if (ieee->rtllib_ap_sec_type &&
746       (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))) {
747        if ((pHTInfo->IOTPeer == HT_IOT_PEER_ATHEROS) ||
748                (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN))
749            pHTInfo->bCurrentAMPDUEnable = false;
750    }
751
752    if (!pHTInfo->bRegRT2RTAggregation) {
753        if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
754            pHTInfo->CurrentAMPDUFactor =
755                         pPeerHTCap->MaxRxAMPDUFactor;
756        else
757            pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
758
759    } else {
760        if (ieee->current_network.bssht.bdRT2RTAggregation) {
761            if (ieee->pairwise_key_type != KEY_TYPE_NA)
762                pHTInfo->CurrentAMPDUFactor =
763                         pPeerHTCap->MaxRxAMPDUFactor;
764            else
765                pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
766        } else {
767            if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
768                pHTInfo->CurrentAMPDUFactor =
769                         pPeerHTCap->MaxRxAMPDUFactor;
770            else
771                pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
772        }
773    }
774    if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
775        pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
776    else
777        pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
778    if (pHTInfo->IOTAction & HT_IOT_ACT_TX_USE_AMSDU_8K) {
779        pHTInfo->bCurrentAMPDUEnable = false;
780        pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
781        pHTInfo->ForcedAMSDUMaxSize = 7935;
782    }
783    pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
784
785    if (pPeerHTCap->MCS[0] == 0)
786        pPeerHTCap->MCS[0] = 0xff;
787
788    HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
789
790    HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
791
792    pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
793    if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
794        pMcsFilter = MCS_FILTER_1SS;
795    else
796        pMcsFilter = MCS_FILTER_ALL;
797    ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
798                   ieee->dot11HTOperationalRateSet, pMcsFilter);
799    ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
800
801    pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
802}
803
804void HTInitializeHTInfo(struct rtllib_device *ieee)
805{
806    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
807
808    RTLLIB_DEBUG(RTLLIB_DL_HT, "===========>%s()\n", __func__);
809    pHTInfo->bCurrentHTSupport = false;
810
811    pHTInfo->bCurBW40MHz = false;
812    pHTInfo->bCurTxBW40MHz = false;
813
814    pHTInfo->bCurShortGI20MHz = false;
815    pHTInfo->bCurShortGI40MHz = false;
816    pHTInfo->bForcedShortGI = false;
817
818    pHTInfo->bCurSuppCCK = true;
819
820    pHTInfo->bCurrent_AMSDU_Support = false;
821    pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
822    pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
823    pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
824
825    memset((void *)(&(pHTInfo->SelfHTCap)), 0,
826        sizeof(pHTInfo->SelfHTCap));
827    memset((void *)(&(pHTInfo->SelfHTInfo)), 0,
828        sizeof(pHTInfo->SelfHTInfo));
829    memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0,
830        sizeof(pHTInfo->PeerHTCapBuf));
831    memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0,
832        sizeof(pHTInfo->PeerHTInfoBuf));
833
834    pHTInfo->bSwBwInProgress = false;
835    pHTInfo->ChnlOp = CHNLOP_NONE;
836
837    pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
838
839    pHTInfo->bCurrentRT2RTAggregation = false;
840    pHTInfo->bCurrentRT2RTLongSlotTime = false;
841    pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
842
843    pHTInfo->IOTPeer = 0;
844    pHTInfo->IOTAction = 0;
845    pHTInfo->IOTRaFunc = 0;
846
847    {
848        u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
849        RegHTSuppRateSets[0] = 0xFF;
850        RegHTSuppRateSets[1] = 0xFF;
851        RegHTSuppRateSets[4] = 0x01;
852    }
853}
854
855void HTInitializeBssDesc(struct bss_ht *pBssHT)
856{
857
858    pBssHT->bdSupportHT = false;
859    memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
860    pBssHT->bdHTCapLen = 0;
861    memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
862    pBssHT->bdHTInfoLen = 0;
863
864    pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
865
866    pBssHT->bdRT2RTAggregation = false;
867    pBssHT->bdRT2RTLongSlotTime = false;
868    pBssHT->RT2RT_HT_Mode = (enum rt_ht_capability)0;
869}
870
871void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
872                   struct rtllib_network *pNetwork)
873{
874    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
875    u8 bIOTAction = 0;
876
877    RTLLIB_DEBUG(RTLLIB_DL_HT, "==============>%s()\n", __func__);
878    /* unmark bEnableHT flag here is the same reason why unmarked in
879     * function rtllib_softmac_new_net. WB 2008.09.10*/
880    if (pNetwork->bssht.bdSupportHT) {
881        pHTInfo->bCurrentHTSupport = true;
882        pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
883
884        if (pNetwork->bssht.bdHTCapLen > 0 &&
885            pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
886            memcpy(pHTInfo->PeerHTCapBuf,
887                   pNetwork->bssht.bdHTCapBuf,
888                   pNetwork->bssht.bdHTCapLen);
889
890        if (pNetwork->bssht.bdHTInfoLen > 0 &&
891            pNetwork->bssht.bdHTInfoLen <=
892            sizeof(pHTInfo->PeerHTInfoBuf))
893            memcpy(pHTInfo->PeerHTInfoBuf,
894                   pNetwork->bssht.bdHTInfoBuf,
895                   pNetwork->bssht.bdHTInfoLen);
896
897        if (pHTInfo->bRegRT2RTAggregation) {
898            pHTInfo->bCurrentRT2RTAggregation =
899                 pNetwork->bssht.bdRT2RTAggregation;
900            pHTInfo->bCurrentRT2RTLongSlotTime =
901                 pNetwork->bssht.bdRT2RTLongSlotTime;
902            pHTInfo->RT2RT_HT_Mode = pNetwork->bssht.RT2RT_HT_Mode;
903        } else {
904            pHTInfo->bCurrentRT2RTAggregation = false;
905            pHTInfo->bCurrentRT2RTLongSlotTime = false;
906            pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
907        }
908
909        HTIOTPeerDetermine(ieee);
910
911        pHTInfo->IOTAction = 0;
912        bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
913        if (bIOTAction)
914            pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
915
916        bIOTAction = HTIOTActIsDisableMCS15(ieee);
917        if (bIOTAction)
918            pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
919
920        bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
921        if (bIOTAction)
922            pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
923
924
925        bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
926        if (bIOTAction)
927            pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
928
929        bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
930        if (bIOTAction)
931            pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
932        bIOTAction = HTIOTActIsCCDFsync(ieee);
933        if (bIOTAction)
934            pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
935    } else {
936        pHTInfo->bCurrentHTSupport = false;
937        pHTInfo->bCurrentRT2RTAggregation = false;
938        pHTInfo->bCurrentRT2RTLongSlotTime = false;
939        pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
940
941        pHTInfo->IOTAction = 0;
942        pHTInfo->IOTRaFunc = 0;
943    }
944}
945
946void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
947                     struct rtllib_network *pNetwork)
948{
949    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
950    struct ht_info_ele *pPeerHTInfo =
951         (struct ht_info_ele *)pNetwork->bssht.bdHTInfoBuf;
952
953    if (pHTInfo->bCurrentHTSupport) {
954        if (pNetwork->bssht.bdHTInfoLen != 0)
955            pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
956    }
957}
958EXPORT_SYMBOL(HT_update_self_and_peer_setting);
959
960void HTUseDefaultSetting(struct rtllib_device *ieee)
961{
962    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
963
964    if (pHTInfo->bEnableHT) {
965        pHTInfo->bCurrentHTSupport = true;
966        pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
967
968        pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
969        pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz;
970
971        pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz;
972
973        if (ieee->iw_mode == IW_MODE_ADHOC)
974            ieee->current_network.qos_data.active =
975                 ieee->current_network.qos_data.supported;
976        pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
977        pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
978
979        pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
980        pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
981
982        pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
983
984        HTFilterMCSRate(ieee, ieee->Regdot11TxHTOperationalRateSet,
985                ieee->dot11HTOperationalRateSet);
986        ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
987                       ieee->dot11HTOperationalRateSet,
988                       MCS_FILTER_ALL);
989        ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
990
991    } else {
992        pHTInfo->bCurrentHTSupport = false;
993    }
994    return;
995}
996
997u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
998{
999    if (ieee->pHTInfo->bCurrentHTSupport) {
1000        if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
1001            RTLLIB_DEBUG(RTLLIB_DL_HT, "HT CONTROL FILED "
1002                     "EXIST!!\n");
1003            return true;
1004        }
1005    }
1006    return false;
1007}
1008
1009static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
1010{
1011    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1012
1013    RTLLIB_DEBUG(RTLLIB_DL_HT, "======>%s()\n", __func__);
1014    if (pHTInfo->bCurBW40MHz) {
1015        if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
1016            ieee->set_chan(ieee->dev,
1017                       ieee->current_network.channel + 2);
1018        else if (pHTInfo->CurSTAExtChnlOffset ==
1019             HT_EXTCHNL_OFFSET_LOWER)
1020            ieee->set_chan(ieee->dev,
1021                       ieee->current_network.channel - 2);
1022        else
1023            ieee->set_chan(ieee->dev,
1024                       ieee->current_network.channel);
1025
1026        ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
1027                       pHTInfo->CurSTAExtChnlOffset);
1028    } else {
1029        ieee->set_chan(ieee->dev, ieee->current_network.channel);
1030        ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
1031                       HT_EXTCHNL_OFFSET_NO_EXT);
1032    }
1033
1034    pHTInfo->bSwBwInProgress = false;
1035}
1036
1037void HTSetConnectBwMode(struct rtllib_device *ieee,
1038            enum ht_channel_width Bandwidth,
1039            enum ht_extchnl_offset Offset)
1040{
1041    struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1042
1043    if (pHTInfo->bRegBW40MHz == false)
1044        return;
1045
1046    if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
1047        Bandwidth = HT_CHANNEL_WIDTH_20;
1048
1049    if (pHTInfo->bSwBwInProgress) {
1050        printk(KERN_INFO "%s: bSwBwInProgress!!\n", __func__);
1051        return;
1052    }
1053    if (Bandwidth == HT_CHANNEL_WIDTH_20_40) {
1054        if (ieee->current_network.channel < 2 &&
1055            Offset == HT_EXTCHNL_OFFSET_LOWER)
1056            Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1057        if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
1058            Offset == HT_EXTCHNL_OFFSET_LOWER) {
1059            pHTInfo->bCurBW40MHz = true;
1060            pHTInfo->CurSTAExtChnlOffset = Offset;
1061        } else {
1062            pHTInfo->bCurBW40MHz = false;
1063            pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1064        }
1065    } else {
1066        pHTInfo->bCurBW40MHz = false;
1067        pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1068    }
1069
1070    printk(KERN_INFO "%s():pHTInfo->bCurBW40MHz:%x\n", __func__,
1071           pHTInfo->bCurBW40MHz);
1072
1073    pHTInfo->bSwBwInProgress = true;
1074
1075    HTSetConnectBwModeCallback(ieee);
1076}
1077

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