summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/rtlwifi/base.c
blob: 74c0214367040beb33d4b343c9cc9a53ed75aed9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
/******************************************************************************
 *
 * Copyright(c) 2009-2010  Realtek Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 * wlanfae <wlanfae@realtek.com>
 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
 * Hsinchu 300, Taiwan.
 *
 * Larry Finger <Larry.Finger@lwfinger.net>
 *
 *****************************************************************************/

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/ip.h>
#include <linux/module.h>
#include "wifi.h"
#include "rc.h"
#include "base.h"
#include "efuse.h"
#include "cam.h"
#include "ps.h"
#include "regd.h"

/*
 *NOTICE!!!: This file will be very big, we hsould
 *keep it clear under follwing roles:
 *
 *This file include follwing part, so, if you add new
 *functions into this file, please check which part it
 *should includes. or check if you should add new part
 *for this file:
 *
 *1) mac80211 init functions
 *2) tx information functions
 *3) functions called by core.c
 *4) wq & timer callback functions
 *5) frame process functions
 *6) IOT functions
 *7) sysfs functions
 *8) ...
 */

/*********************************************************
 *
 * mac80211 init functions
 *
 *********************************************************/
static struct ieee80211_channel rtl_channeltable_2g[] = {
	{.center_freq = 2412, .hw_value = 1,},
	{.center_freq = 2417, .hw_value = 2,},
	{.center_freq = 2422, .hw_value = 3,},
	{.center_freq = 2427, .hw_value = 4,},
	{.center_freq = 2432, .hw_value = 5,},
	{.center_freq = 2437, .hw_value = 6,},
	{.center_freq = 2442, .hw_value = 7,},
	{.center_freq = 2447, .hw_value = 8,},
	{.center_freq = 2452, .hw_value = 9,},
	{.center_freq = 2457, .hw_value = 10,},
	{.center_freq = 2462, .hw_value = 11,},
	{.center_freq = 2467, .hw_value = 12,},
	{.center_freq = 2472, .hw_value = 13,},
	{.center_freq = 2484, .hw_value = 14,},
};

static struct ieee80211_channel rtl_channeltable_5g[] = {
	{.center_freq = 5180, .hw_value = 36,},
	{.center_freq = 5200, .hw_value = 40,},
	{.center_freq = 5220, .hw_value = 44,},
	{.center_freq = 5240, .hw_value = 48,},
	{.center_freq = 5260, .hw_value = 52,},
	{.center_freq = 5280, .hw_value = 56,},
	{.center_freq = 5300, .hw_value = 60,},
	{.center_freq = 5320, .hw_value = 64,},
	{.center_freq = 5500, .hw_value = 100,},
	{.center_freq = 5520, .hw_value = 104,},
	{.center_freq = 5540, .hw_value = 108,},
	{.center_freq = 5560, .hw_value = 112,},
	{.center_freq = 5580, .hw_value = 116,},
	{.center_freq = 5600, .hw_value = 120,},
	{.center_freq = 5620, .hw_value = 124,},
	{.center_freq = 5640, .hw_value = 128,},
	{.center_freq = 5660, .hw_value = 132,},
	{.center_freq = 5680, .hw_value = 136,},
	{.center_freq = 5700, .hw_value = 140,},
	{.center_freq = 5745, .hw_value = 149,},
	{.center_freq = 5765, .hw_value = 153,},
	{.center_freq = 5785, .hw_value = 157,},
	{.center_freq = 5805, .hw_value = 161,},
	{.center_freq = 5825, .hw_value = 165,},
};

static struct ieee80211_rate rtl_ratetable_2g[] = {
	{.bitrate = 10, .hw_value = 0x00,},
	{.bitrate = 20, .hw_value = 0x01,},
	{.bitrate = 55, .hw_value = 0x02,},
	{.bitrate = 110, .hw_value = 0x03,},
	{.bitrate = 60, .hw_value = 0x04,},
	{.bitrate = 90, .hw_value = 0x05,},
	{.bitrate = 120, .hw_value = 0x06,},
	{.bitrate = 180, .hw_value = 0x07,},
	{.bitrate = 240, .hw_value = 0x08,},
	{.bitrate = 360, .hw_value = 0x09,},
	{.bitrate = 480, .hw_value = 0x0a,},
	{.bitrate = 540, .hw_value = 0x0b,},
};

static struct ieee80211_rate rtl_ratetable_5g[] = {
	{.bitrate = 60, .hw_value = 0x04,},
	{.bitrate = 90, .hw_value = 0x05,},
	{.bitrate = 120, .hw_value = 0x06,},
	{.bitrate = 180, .hw_value = 0x07,},
	{.bitrate = 240, .hw_value = 0x08,},
	{.bitrate = 360, .hw_value = 0x09,},
	{.bitrate = 480, .hw_value = 0x0a,},
	{.bitrate = 540, .hw_value = 0x0b,},
};

static const struct ieee80211_supported_band rtl_band_2ghz = {
	.band = IEEE80211_BAND_2GHZ,

	.channels = rtl_channeltable_2g,
	.n_channels = ARRAY_SIZE(rtl_channeltable_2g),

	.bitrates = rtl_ratetable_2g,
	.n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),

	.ht_cap = {0},
};

static struct ieee80211_supported_band rtl_band_5ghz = {
	.band = IEEE80211_BAND_5GHZ,

	.channels = rtl_channeltable_5g,
	.n_channels = ARRAY_SIZE(rtl_channeltable_5g),

	.bitrates = rtl_ratetable_5g,
	.n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),

	.ht_cap = {0},
};

static const u8 tid_to_ac[] = {
	2, /* IEEE80211_AC_BE */
	3, /* IEEE80211_AC_BK */
	3, /* IEEE80211_AC_BK */
	2, /* IEEE80211_AC_BE */
	1, /* IEEE80211_AC_VI */
	1, /* IEEE80211_AC_VI */
	0, /* IEEE80211_AC_VO */
	0, /* IEEE80211_AC_VO */
};

u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid)
{
	return tid_to_ac[tid];
}

static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
				  struct ieee80211_sta_ht_cap *ht_cap)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &(rtlpriv->phy);

	ht_cap->ht_supported = true;
	ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
	    IEEE80211_HT_CAP_SGI_40 |
	    IEEE80211_HT_CAP_SGI_20 |
	    IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;

	if (rtlpriv->rtlhal.disable_amsdu_8k)
		ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;

	/*
	 *Maximum length of AMPDU that the STA can receive.
	 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
	 */
	ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;

	/*Minimum MPDU start spacing , */
	ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;

	ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;

	/*
	 *hw->wiphy->bands[IEEE80211_BAND_2GHZ]
	 *base on ant_num
	 *rx_mask: RX mask
	 *if rx_ant =1 rx_mask[0]=0xff;==>MCS0-MCS7
	 *if rx_ant =2 rx_mask[1]=0xff;==>MCS8-MCS15
	 *if rx_ant >=3 rx_mask[2]=0xff;
	 *if BW_40 rx_mask[4]=0x01;
	 *highest supported RX rate
	 */
	if (get_rf_type(rtlphy) == RF_1T2R || get_rf_type(rtlphy) == RF_2T2R) {

		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("1T2R or 2T2R\n"));

		ht_cap->mcs.rx_mask[0] = 0xFF;
		ht_cap->mcs.rx_mask[1] = 0xFF;
		ht_cap->mcs.rx_mask[4] = 0x01;

		ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
	} else if (get_rf_type(rtlphy) == RF_1T1R) {

		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("1T1R\n"));

		ht_cap->mcs.rx_mask[0] = 0xFF;
		ht_cap->mcs.rx_mask[1] = 0x00;
		ht_cap->mcs.rx_mask[4] = 0x01;

		ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
	}
}

static void _rtl_init_mac80211(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
	struct ieee80211_supported_band *sband;


	if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset ==
	    BAND_ON_BOTH) {
		/* 1: 2.4 G bands */
		/* <1> use  mac->bands as mem for hw->wiphy->bands */
		sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);

		/* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
		 * to default value(1T1R) */
		memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
				sizeof(struct ieee80211_supported_band));

		/* <3> init ht cap base on ant_num */
		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);

		/* <4> set mac->sband to wiphy->sband */
		hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;

		/* 2: 5 G bands */
		/* <1> use  mac->bands as mem for hw->wiphy->bands */
		sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);

		/* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
		 * to default value(1T1R) */
		memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
				sizeof(struct ieee80211_supported_band));

		/* <3> init ht cap base on ant_num */
		_rtl_init_hw_ht_capab(hw, &sband->ht_cap);

		/* <4> set mac->sband to wiphy->sband */
		hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
	} else {
		if (rtlhal->current_bandtype == BAND_ON_2_4G) {
			/* <1> use  mac->bands as mem for hw->wiphy->bands */
			sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);

			/* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
			 * to default value(1T1R) */
			memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
				 &rtl_band_2ghz,
				 sizeof(struct ieee80211_supported_band));

			/* <3> init ht cap base on ant_num */
			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);

			/* <4> set mac->sband to wiphy->sband */
			hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
		} else if (rtlhal->current_bandtype == BAND_ON_5G) {
			/* <1> use  mac->bands as mem for hw->wiphy->bands */
			sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);

			/* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
			 * to default value(1T1R) */
			memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
				 &rtl_band_5ghz,
				 sizeof(struct ieee80211_supported_band));

			/* <3> init ht cap base on ant_num */
			_rtl_init_hw_ht_capab(hw, &sband->ht_cap);

			/* <4> set mac->sband to wiphy->sband */
			hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
		} else {
			RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
				 ("Err BAND %d\n",
				 rtlhal->current_bandtype));
		}
	}
	/* <5> set hw caps */
	hw->flags = IEEE80211_HW_SIGNAL_DBM |
	    IEEE80211_HW_RX_INCLUDES_FCS |
	    IEEE80211_HW_BEACON_FILTER |
	    IEEE80211_HW_AMPDU_AGGREGATION |
	    IEEE80211_HW_CONNECTION_MONITOR |
	    /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
	    IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;

	/* swlps or hwlps has been set in diff chip in init_sw_vars */
	if (rtlpriv->psc.swctrl_lps)
		hw->flags |= IEEE80211_HW_SUPPORTS_PS |
			IEEE80211_HW_PS_NULLFUNC_STACK |
			/* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
			0;

	hw->wiphy->interface_modes =
	    BIT(NL80211_IFTYPE_AP) |
	    BIT(NL80211_IFTYPE_STATION) |
	    BIT(NL80211_IFTYPE_ADHOC);

	hw->wiphy->rts_threshold = 2347;

	hw->queues = AC_MAX;
	hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;

	/* TODO: Correct this value for our hw */
	/* TODO: define these hard code value */
	hw->channel_change_time = 100;
	hw->max_listen_interval = 10;
	hw->max_rate_tries = 4;
	/* hw->max_rates = 1; */
	hw->sta_data_size = sizeof(struct rtl_sta_info);

	/* <6> mac address */
	if (is_valid_ether_addr(rtlefuse->dev_addr)) {
		SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
	} else {
		u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
		get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
		SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
	}

}

static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	/* <1> timer */
	init_timer(&rtlpriv->works.watchdog_timer);
	setup_timer(&rtlpriv->works.watchdog_timer,
		    rtl_watch_dog_timer_callback, (unsigned long)hw);

	/* <2> work queue */
	rtlpriv->works.hw = hw;
	rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
			  (void *)rtl_watchdog_wq_callback);
	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
			  (void *)rtl_ips_nic_off_wq_callback);
	INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
			  (void *)rtl_swlps_wq_callback);
	INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
			  (void *)rtl_swlps_rfon_wq_callback);

}

void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	del_timer_sync(&rtlpriv->works.watchdog_timer);

	cancel_delayed_work(&rtlpriv->works.watchdog_wq);
	cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
	cancel_delayed_work(&rtlpriv->works.ps_work);
	cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
}

void rtl_init_rfkill(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	bool radio_state;
	bool blocked;
	u8 valid = 0;

	/*set init state to on */
	rtlpriv->rfkill.rfkill_state = true;
	wiphy_rfkill_set_hw_state(hw->wiphy, 0);

	radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);

	if (valid) {
		pr_info("wireless switch is %s\n",
			rtlpriv->rfkill.rfkill_state ? "on" : "off");

		rtlpriv->rfkill.rfkill_state = radio_state;

		blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
		wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
	}

	wiphy_rfkill_start_polling(hw->wiphy);
}

void rtl_deinit_rfkill(struct ieee80211_hw *hw)
{
	wiphy_rfkill_stop_polling(hw->wiphy);
}

int rtl_init_core(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));

	/* <1> init mac80211 */
	_rtl_init_mac80211(hw);
	rtlmac->hw = hw;

	/* <2> rate control register */
	hw->rate_control_algorithm = "rtl_rc";

	/*
	 * <3> init CRDA must come after init
	 * mac80211 hw  in _rtl_init_mac80211.
	 */
	if (rtl_regd_init(hw, rtl_reg_notifier)) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("REGD init failed\n"));
		return 1;
	} else {
		/* CRDA regd hint must after init CRDA */
		if (regulatory_hint(hw->wiphy, rtlpriv->regd.alpha2)) {
			RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
				 ("regulatory_hint fail\n"));
		}
	}

	/* <4> locks */
	mutex_init(&rtlpriv->locks.conf_mutex);
	mutex_init(&rtlpriv->locks.ps_mutex);
	spin_lock_init(&rtlpriv->locks.irq_th_lock);
	spin_lock_init(&rtlpriv->locks.h2c_lock);
	spin_lock_init(&rtlpriv->locks.rf_ps_lock);
	spin_lock_init(&rtlpriv->locks.rf_lock);
	spin_lock_init(&rtlpriv->locks.waitq_lock);
	spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);

	rtlmac->link_state = MAC80211_NOLINK;

	/* <5> init deferred work */
	_rtl_init_deferred_work(hw);

	return 0;
}

void rtl_deinit_core(struct ieee80211_hw *hw)
{
}

void rtl_init_rx_config(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));

	rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
}

/*********************************************************
 *
 * tx information functions
 *
 *********************************************************/
static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
					  struct rtl_tcb_desc *tcb_desc,
					  struct ieee80211_tx_info *info)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	u8 rate_flag = info->control.rates[0].flags;

	tcb_desc->use_shortpreamble = false;

	/* 1M can only use Long Preamble. 11B spec */
	if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
		return;
	else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
		tcb_desc->use_shortpreamble = true;

	return;
}

static void _rtl_query_shortgi(struct ieee80211_hw *hw,
			       struct ieee80211_sta *sta,
			       struct rtl_tcb_desc *tcb_desc,
			       struct ieee80211_tx_info *info)
{
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	u8 rate_flag = info->control.rates[0].flags;
	u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
	tcb_desc->use_shortgi = false;

	if (sta == NULL)
		return;

	sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
	sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;

	if (!(sta->ht_cap.ht_supported))
		return;

	if (!sgi_40 && !sgi_20)
		return;

	if (mac->opmode == NL80211_IFTYPE_STATION)
		bw_40 = mac->bw_40;
	else if (mac->opmode == NL80211_IFTYPE_AP ||
		mac->opmode == NL80211_IFTYPE_ADHOC)
		bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;

	if (bw_40 && sgi_40)
		tcb_desc->use_shortgi = true;
	else if ((bw_40 == false) && sgi_20)
		tcb_desc->use_shortgi = true;

	if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
		tcb_desc->use_shortgi = false;
}

static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
				       struct rtl_tcb_desc *tcb_desc,
				       struct ieee80211_tx_info *info)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	u8 rate_flag = info->control.rates[0].flags;

	/* Common Settings */
	tcb_desc->rts_stbc = false;
	tcb_desc->cts_enable = false;
	tcb_desc->rts_sc = 0;
	tcb_desc->rts_bw = false;
	tcb_desc->rts_use_shortpreamble = false;
	tcb_desc->rts_use_shortgi = false;

	if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
		/* Use CTS-to-SELF in protection mode. */
		tcb_desc->rts_enable = true;
		tcb_desc->cts_enable = true;
		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
	} else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
		/* Use RTS-CTS in protection mode. */
		tcb_desc->rts_enable = true;
		tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
	}
}

static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
				   struct ieee80211_sta *sta,
				   struct rtl_tcb_desc *tcb_desc)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_sta_info *sta_entry = NULL;
	u8 ratr_index = 7;

	if (sta) {
		sta_entry = (struct rtl_sta_info *) sta->drv_priv;
		ratr_index = sta_entry->ratr_index;
	}
	if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
		if (mac->opmode == NL80211_IFTYPE_STATION) {
			tcb_desc->ratr_index = 0;
		} else if (mac->opmode == NL80211_IFTYPE_ADHOC) {
			if (tcb_desc->multicast || tcb_desc->broadcast) {
				tcb_desc->hw_rate =
				    rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
				tcb_desc->use_driver_rate = 1;
			} else {
				/* TODO */
			}
			tcb_desc->ratr_index = ratr_index;
		} else if (mac->opmode == NL80211_IFTYPE_AP) {
			tcb_desc->ratr_index = ratr_index;
		}
	}

	if (rtlpriv->dm.useramask) {
		/* TODO we will differentiate adhoc and station futrue  */
		if (mac->opmode == NL80211_IFTYPE_STATION) {
			tcb_desc->mac_id = 0;

			if (mac->mode == WIRELESS_MODE_N_24G)
				tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
			else if (mac->mode == WIRELESS_MODE_N_5G)
				tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
			else if (mac->mode & WIRELESS_MODE_G)
				tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
			else if (mac->mode & WIRELESS_MODE_B)
				tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
			else if (mac->mode & WIRELESS_MODE_A)
				tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
		} else if (mac->opmode == NL80211_IFTYPE_AP ||
			mac->opmode == NL80211_IFTYPE_ADHOC) {
			if (NULL != sta) {
				if (sta->aid > 0)
					tcb_desc->mac_id = sta->aid + 1;
				else
					tcb_desc->mac_id = 1;
			} else {
				tcb_desc->mac_id = 0;
			}
		}
	}

}

static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
				      struct ieee80211_sta *sta,
				      struct rtl_tcb_desc *tcb_desc)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));

	tcb_desc->packet_bw = false;
	if (!sta)
		return;
	if (mac->opmode == NL80211_IFTYPE_AP ||
	    mac->opmode == NL80211_IFTYPE_ADHOC) {
		if (!(sta->ht_cap.ht_supported) ||
		    !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
			return;
	} else if (mac->opmode == NL80211_IFTYPE_STATION) {
		if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
			return;
	}
	if (tcb_desc->multicast || tcb_desc->broadcast)
		return;

	/*use legency rate, shall use 20MHz */
	if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
		return;

	tcb_desc->packet_bw = true;
}

static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &(rtlpriv->phy);
	u8 hw_rate;

	if (get_rf_type(rtlphy) == RF_2T2R)
		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
	else
		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];

	return hw_rate;
}

/* mac80211's rate_idx is like this:
 *
 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
 *
 * B/G rate:
 * (rx_status->flag & RX_FLAG_HT) = 0,
 * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11,
 *
 * N rate:
 * (rx_status->flag & RX_FLAG_HT) = 1,
 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
 *
 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
 * A rate:
 * (rx_status->flag & RX_FLAG_HT) = 0,
 * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7,
 *
 * N rate:
 * (rx_status->flag & RX_FLAG_HT) = 1,
 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
 */
int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
			 bool isht, u8 desc_rate, bool first_ampdu)
{
	int rate_idx;

	if (false == isht) {
		if (IEEE80211_BAND_2GHZ == hw->conf.channel->band) {
			switch (desc_rate) {
			case DESC92_RATE1M:
				rate_idx = 0;
				break;
			case DESC92_RATE2M:
				rate_idx = 1;
				break;
			case DESC92_RATE5_5M:
				rate_idx = 2;
				break;
			case DESC92_RATE11M:
				rate_idx = 3;
				break;
			case DESC92_RATE6M:
				rate_idx = 4;
				break;
			case DESC92_RATE9M:
				rate_idx = 5;
				break;
			case DESC92_RATE12M:
				rate_idx = 6;
				break;
			case DESC92_RATE18M:
				rate_idx = 7;
				break;
			case DESC92_RATE24M:
				rate_idx = 8;
				break;
			case DESC92_RATE36M:
				rate_idx = 9;
				break;
			case DESC92_RATE48M:
				rate_idx = 10;
				break;
			case DESC92_RATE54M:
				rate_idx = 11;
				break;
			default:
				rate_idx = 0;
				break;
			}
		} else {
			switch (desc_rate) {
			case DESC92_RATE6M:
				rate_idx = 0;
				break;
			case DESC92_RATE9M:
				rate_idx = 1;
				break;
			case DESC92_RATE12M:
				rate_idx = 2;
				break;
			case DESC92_RATE18M:
				rate_idx = 3;
				break;
			case DESC92_RATE24M:
				rate_idx = 4;
				break;
			case DESC92_RATE36M:
				rate_idx = 5;
				break;
			case DESC92_RATE48M:
				rate_idx = 6;
				break;
			case DESC92_RATE54M:
				rate_idx = 7;
				break;
			default:
				rate_idx = 0;
				break;
			}
		}

	} else {

		switch (desc_rate) {
		case DESC92_RATEMCS0:
			rate_idx = 0;
			break;
		case DESC92_RATEMCS1:
			rate_idx = 1;
			break;
		case DESC92_RATEMCS2:
			rate_idx = 2;
			break;
		case DESC92_RATEMCS3:
			rate_idx = 3;
			break;
		case DESC92_RATEMCS4:
			rate_idx = 4;
			break;
		case DESC92_RATEMCS5:
			rate_idx = 5;
			break;
		case DESC92_RATEMCS6:
			rate_idx = 6;
			break;
		case DESC92_RATEMCS7:
			rate_idx = 7;
			break;
		case DESC92_RATEMCS8:
			rate_idx = 8;
			break;
		case DESC92_RATEMCS9:
			rate_idx = 9;
			break;
		case DESC92_RATEMCS10:
			rate_idx = 10;
			break;
		case DESC92_RATEMCS11:
			rate_idx = 11;
			break;
		case DESC92_RATEMCS12:
			rate_idx = 12;
			break;
		case DESC92_RATEMCS13:
			rate_idx = 13;
			break;
		case DESC92_RATEMCS14:
			rate_idx = 14;
			break;
		case DESC92_RATEMCS15:
			rate_idx = 15;
			break;
		default:
			rate_idx = 0;
			break;
		}
	}
	return rate_idx;
}
EXPORT_SYMBOL(rtlwifi_rate_mapping);

void rtl_get_tcb_desc(struct ieee80211_hw *hw,
		      struct ieee80211_tx_info *info,
		      struct ieee80211_sta *sta,
		      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
	struct ieee80211_rate *txrate;
	__le16 fc = hdr->frame_control;

	txrate = ieee80211_get_tx_rate(hw, info);
	tcb_desc->hw_rate = txrate->hw_value;

	if (ieee80211_is_data(fc)) {
		/*
		 *we set data rate INX 0
		 *in rtl_rc.c   if skb is special data or
		 *mgt which need low data rate.
		 */

		/*
		 *So tcb_desc->hw_rate is just used for
		 *special data and mgt frames
		 */
		if (info->control.rates[0].idx == 0 ||
				ieee80211_is_nullfunc(fc)) {
			tcb_desc->use_driver_rate = true;
			tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;

			tcb_desc->disable_ratefallback = 1;
		} else {
			/*
			 *because hw will nerver use hw_rate
			 *when tcb_desc->use_driver_rate = false
			 *so we never set highest N rate here,
			 *and N rate will all be controlled by FW
			 *when tcb_desc->use_driver_rate = false
			 */
			if (sta && (sta->ht_cap.ht_supported)) {
				tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw);
			} else {
				if (rtlmac->mode == WIRELESS_MODE_B) {
					tcb_desc->hw_rate =
					   rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
				} else {
					tcb_desc->hw_rate =
					   rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
				}
			}
		}

		if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
			tcb_desc->multicast = 1;
		else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
			tcb_desc->broadcast = 1;

		_rtl_txrate_selectmode(hw, sta, tcb_desc);
		_rtl_query_bandwidth_mode(hw, sta, tcb_desc);
		_rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
		_rtl_query_shortgi(hw, sta, tcb_desc, info);
		_rtl_query_protection_mode(hw, tcb_desc, info);
	} else {
		tcb_desc->use_driver_rate = true;
		tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
		tcb_desc->disable_ratefallback = 1;
		tcb_desc->mac_id = 0;
		tcb_desc->packet_bw = false;
	}
}
EXPORT_SYMBOL(rtl_get_tcb_desc);

bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
{
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	__le16 fc = hdr->frame_control;
	u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN));
	u8 category;

	if (!ieee80211_is_action(fc))
		return true;

	category = *act;
	act++;
	switch (category) {
	case ACT_CAT_BA:
		switch (*act) {
		case ACT_ADDBAREQ:
			if (mac->act_scanning)
				return false;

			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
				 ("%s ACT_ADDBAREQ From :%pM\n",
				  is_tx ? "Tx" : "Rx", hdr->addr2));
			break;
		case ACT_ADDBARSP:
			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
				 ("%s ACT_ADDBARSP From :%pM\n",
				  is_tx ? "Tx" : "Rx", hdr->addr2));
			break;
		case ACT_DELBA:
			RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
				 ("ACT_ADDBADEL From :%pM\n", hdr->addr2));
			break;
		}
		break;
	default:
		break;
	}

	return true;
}

/*should call before software enc*/
u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	__le16 fc = rtl_get_fc(skb);
	u16 ether_type;
	u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
	const struct iphdr *ip;

	if (!ieee80211_is_data(fc))
		return false;


	ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
			      SNAP_SIZE + PROTOC_TYPE_SIZE);
	ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
	/*	ether_type = ntohs(ether_type); */

	if (ETH_P_IP == ether_type) {
		if (IPPROTO_UDP == ip->protocol) {
			struct udphdr *udp = (struct udphdr *)((u8 *) ip +
							       (ip->ihl << 2));
			if (((((u8 *) udp)[1] == 68) &&
			     (((u8 *) udp)[3] == 67)) ||
			    ((((u8 *) udp)[1] == 67) &&
			     (((u8 *) udp)[3] == 68))) {
				/*
				 * 68 : UDP BOOTP client
				 * 67 : UDP BOOTP server
				 */
				RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
					 DBG_DMESG, ("dhcp %s !!\n",
						     (is_tx) ? "Tx" : "Rx"));

				if (is_tx) {
					rtl_lps_leave(hw);
					ppsc->last_delaylps_stamp_jiffies =
					    jiffies;
				}

				return true;
			}
		}
	} else if (ETH_P_ARP == ether_type) {
		if (is_tx) {
			rtl_lps_leave(hw);
			ppsc->last_delaylps_stamp_jiffies = jiffies;
		}

		return true;
	} else if (ETH_P_PAE == ether_type) {
		RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
			 ("802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"));

		if (is_tx) {
			rtl_lps_leave(hw);
			ppsc->last_delaylps_stamp_jiffies = jiffies;
		}

		return true;
	} else if (ETH_P_IPV6 == ether_type) {
		/* IPv6 */
		return true;
	}

	return false;
}

/*********************************************************
 *
 * functions called by core.c
 *
 *********************************************************/
int rtl_tx_agg_start(struct ieee80211_hw *hw,
		struct ieee80211_sta *sta, u16 tid, u16 *ssn)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_tid_data *tid_data;
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_sta_info *sta_entry = NULL;

	if (sta == NULL)
		return -EINVAL;

	if (unlikely(tid >= MAX_TID_COUNT))
		return -EINVAL;

	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
	if (!sta_entry)
		return -ENXIO;
	tid_data = &sta_entry->tids[tid];

	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
		 ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
		 tid_data->seq_number));

	*ssn = tid_data->seq_number;
	tid_data->agg.agg_state = RTL_AGG_START;

	ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);

	return 0;
}

int rtl_tx_agg_stop(struct ieee80211_hw *hw,
		struct ieee80211_sta *sta, u16 tid)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_sta_info *sta_entry = NULL;

	if (sta == NULL)
		return -EINVAL;

	if (!sta->addr) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
		return -EINVAL;
	}

	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
		 ("on ra = %pM tid = %d\n", sta->addr, tid));

	if (unlikely(tid >= MAX_TID_COUNT))
		return -EINVAL;

	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
	sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;

	ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);

	return 0;
}

int rtl_tx_agg_oper(struct ieee80211_hw *hw,
		struct ieee80211_sta *sta, u16 tid)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_sta_info *sta_entry = NULL;

	if (sta == NULL)
		return -EINVAL;

	if (!sta->addr) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
		return -EINVAL;
	}

	RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
		 ("on ra = %pM tid = %d\n", sta->addr, tid));

	if (unlikely(tid >= MAX_TID_COUNT))
		return -EINVAL;

	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
	sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;

	return 0;
}

/*********************************************************
 *
 * wq & timer callback functions
 *
 *********************************************************/
void rtl_watchdog_wq_callback(void *data)
{
	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
							    struct rtl_works,
							    watchdog_wq);
	struct ieee80211_hw *hw = rtlworks->hw;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	bool busytraffic = false;
	bool higher_busytraffic = false;
	bool higher_busyrxtraffic = false;
	u8 idx, tid;
	u32 rx_cnt_inp4eriod = 0;
	u32 tx_cnt_inp4eriod = 0;
	u32 aver_rx_cnt_inperiod = 0;
	u32 aver_tx_cnt_inperiod = 0;
	u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
	u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
	bool enter_ps = false;

	if (is_hal_stop(rtlhal))
		return;

	/* <1> Determine if action frame is allowed */
	if (mac->link_state > MAC80211_NOLINK) {
		if (mac->cnt_after_linked < 20)
			mac->cnt_after_linked++;
	} else {
		mac->cnt_after_linked = 0;
	}

	/*
	 *<2> to check if traffic busy, if
	 * busytraffic we don't change channel
	 */
	if (mac->link_state >= MAC80211_LINKED) {

		/* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
		for (idx = 0; idx <= 2; idx++) {
			rtlpriv->link_info.num_rx_in4period[idx] =
			    rtlpriv->link_info.num_rx_in4period[idx + 1];
			rtlpriv->link_info.num_tx_in4period[idx] =
			    rtlpriv->link_info.num_tx_in4period[idx + 1];
		}
		rtlpriv->link_info.num_rx_in4period[3] =
		    rtlpriv->link_info.num_rx_inperiod;
		rtlpriv->link_info.num_tx_in4period[3] =
		    rtlpriv->link_info.num_tx_inperiod;
		for (idx = 0; idx <= 3; idx++) {
			rx_cnt_inp4eriod +=
			    rtlpriv->link_info.num_rx_in4period[idx];
			tx_cnt_inp4eriod +=
			    rtlpriv->link_info.num_tx_in4period[idx];
		}
		aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
		aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;

		/* (2) check traffic busy */
		if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100)
			busytraffic = true;

		/* Higher Tx/Rx data. */
		if (aver_rx_cnt_inperiod > 4000 ||
		    aver_tx_cnt_inperiod > 4000) {
			higher_busytraffic = true;

			/* Extremely high Rx data. */
			if (aver_rx_cnt_inperiod > 5000)
				higher_busyrxtraffic = true;
		}

		/* check every tid's tx traffic */
		for (tid = 0; tid <= 7; tid++) {
			for (idx = 0; idx <= 2; idx++)
				rtlpriv->link_info.tidtx_in4period[tid][idx] =
				  rtlpriv->link_info.tidtx_in4period[tid]
				  [idx + 1];
			rtlpriv->link_info.tidtx_in4period[tid][3] =
				rtlpriv->link_info.tidtx_inperiod[tid];

			for (idx = 0; idx <= 3; idx++)
				tidtx_inp4eriod[tid] +=
				  rtlpriv->link_info.tidtx_in4period[tid][idx];
			aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
			if (aver_tidtx_inperiod[tid] > 5000)
				rtlpriv->link_info.higher_busytxtraffic[tid] =
						   true;
			else
				rtlpriv->link_info.higher_busytxtraffic[tid] =
						   false;
		}

		if (((rtlpriv->link_info.num_rx_inperiod +
		      rtlpriv->link_info.num_tx_inperiod) > 8) ||
		    (rtlpriv->link_info.num_rx_inperiod > 2))
			enter_ps = false;
		else
			enter_ps = true;

		/* LeisurePS only work in infra mode. */
		if (enter_ps)
			rtl_lps_enter(hw);
		else
			rtl_lps_leave(hw);
	}

	rtlpriv->link_info.num_rx_inperiod = 0;
	rtlpriv->link_info.num_tx_inperiod = 0;
	for (tid = 0; tid <= 7; tid++)
		rtlpriv->link_info.tidtx_inperiod[tid] = 0;

	rtlpriv->link_info.busytraffic = busytraffic;
	rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
	rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;

	/* <3> DM */
	rtlpriv->cfg->ops->dm_watchdog(hw);
}

void rtl_watch_dog_timer_callback(unsigned long data)
{
	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	queue_delayed_work(rtlpriv->works.rtl_wq,
			   &rtlpriv->works.watchdog_wq, 0);

	mod_timer(&rtlpriv->works.watchdog_timer,
		  jiffies + MSECS(RTL_WATCH_DOG_TIME));
}

/*********************************************************
 *
 * frame process functions
 *
 *********************************************************/
u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
{
	struct ieee80211_mgmt *mgmt = (void *)data;
	u8 *pos, *end;

	pos = (u8 *)mgmt->u.beacon.variable;
	end = data + len;
	while (pos < end) {
		if (pos + 2 + pos[1] > end)
			return NULL;

		if (pos[0] == ie)
			return pos;

		pos += 2 + pos[1];
	}
	return NULL;
}

/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
		enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
{
	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
	struct sk_buff *skb;
	struct ieee80211_mgmt *action_frame;

	/* 27 = header + category + action + smps mode */
	skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
	if (!skb)
		return NULL;

	skb_reserve(skb, hw->extra_tx_headroom);
	action_frame = (void *)skb_put(skb, 27);
	memset(action_frame, 0, 27);
	memcpy(action_frame->da, da, ETH_ALEN);
	memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
	memcpy(action_frame->bssid, bssid, ETH_ALEN);
	action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
						  IEEE80211_STYPE_ACTION);
	action_frame->u.action.category = WLAN_CATEGORY_HT;
	action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
	switch (smps) {
	case IEEE80211_SMPS_AUTOMATIC:/* 0 */
	case IEEE80211_SMPS_NUM_MODES:/* 4 */
		WARN_ON(1);
	case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
		action_frame->u.action.u.ht_smps.smps_control =
				WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
		break;
	case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
		action_frame->u.action.u.ht_smps.smps_control =
				WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
		break;
	case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
		action_frame->u.action.u.ht_smps.smps_control =
				WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
		break;
	}

	return skb;
}

int rtl_send_smps_action(struct ieee80211_hw *hw,
		struct ieee80211_sta *sta, u8 *da, u8 *bssid,
		enum ieee80211_smps_mode smps)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid);
	struct rtl_tcb_desc tcb_desc;
	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));

	if (rtlpriv->mac80211.act_scanning)
		goto err_free;

	if (!sta)
		goto err_free;

	if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
		goto err_free;

	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
		goto err_free;

	/* this is a type = mgmt * stype = action frame */
	if (skb) {
		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
		struct rtl_sta_info *sta_entry =
			(struct rtl_sta_info *) sta->drv_priv;
		sta_entry->mimo_ps = smps;
		rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);

		info->control.rates[0].idx = 0;
		info->control.sta = sta;
		info->band = hw->conf.channel->band;
		rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
	}
err_free:
	return 0;
}

/*********************************************************
 *
 * IOT functions
 *
 *********************************************************/
static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
		struct octet_string vendor_ie)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	bool matched = false;
	static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
	static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
	static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
	static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
	static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
	static u8 racap[] = { 0x00, 0x0c, 0x43 };
	static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
	static u8 marvcap[] = { 0x00, 0x50, 0x43 };

	if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
		memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
		rtlpriv->mac80211.vendor = PEER_ATH;
		matched = true;
	} else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
		memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
		memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
		rtlpriv->mac80211.vendor = PEER_BROAD;
		matched = true;
	} else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
		rtlpriv->mac80211.vendor = PEER_RAL;
		matched = true;
	} else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
		rtlpriv->mac80211.vendor = PEER_CISCO;
		matched = true;
	} else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
		rtlpriv->mac80211.vendor = PEER_MARV;
		matched = true;
	}

	return matched;
}

static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
		unsigned int len)
{
	struct ieee80211_mgmt *mgmt = (void *)data;
	struct octet_string vendor_ie;
	u8 *pos, *end;

	pos = (u8 *)mgmt->u.beacon.variable;
	end = data + len;
	while (pos < end) {
		if (pos[0] == 221) {
			vendor_ie.length = pos[1];
			vendor_ie.octet = &pos[2];
			if (rtl_chk_vendor_ouisub(hw, vendor_ie))
				return true;
		}

		if (pos + 2 + pos[1] > end)
			return false;

		pos += 2 + pos[1];
	}
	return false;
}

void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct ieee80211_hdr *hdr = (void *)data;
	u32 vendor = PEER_UNKNOWN;

	static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
	static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
	static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
	static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
	static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
	static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
	static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
	static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
	static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
	static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
	static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
	static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
	static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
	static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
	static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
	static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };

	if (mac->opmode != NL80211_IFTYPE_STATION)
		return;

	if (mac->link_state == MAC80211_NOLINK) {
		mac->vendor = PEER_UNKNOWN;
		return;
	}

	if (mac->cnt_after_linked > 2)
		return;

	/* check if this really is a beacon */
	if (!ieee80211_is_beacon(hdr->frame_control))
		return;

	/* min. beacon length + FCS_LEN */
	if (len <= 40 + FCS_LEN)
		return;

	/* and only beacons from the associated BSSID, please */
	if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
		return;

	if (rtl_find_221_ie(hw, data, len))
		vendor = mac->vendor;

	if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
		(memcmp(mac->bssid, ap5_2, 3) == 0) ||
		(memcmp(mac->bssid, ap5_3, 3) == 0) ||
		(memcmp(mac->bssid, ap5_4, 3) == 0) ||
		(memcmp(mac->bssid, ap5_5, 3) == 0) ||
		(memcmp(mac->bssid, ap5_6, 3) == 0) ||
		vendor == PEER_ATH) {
		vendor = PEER_ATH;
		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ath find\n"));
	} else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
		(memcmp(mac->bssid, ap4_5, 3) == 0) ||
		(memcmp(mac->bssid, ap4_1, 3) == 0) ||
		(memcmp(mac->bssid, ap4_2, 3) == 0) ||
		(memcmp(mac->bssid, ap4_3, 3) == 0) ||
		vendor == PEER_RAL) {
		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ral findn\n"));
		vendor = PEER_RAL;
	} else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
		vendor == PEER_CISCO) {
		vendor = PEER_CISCO;
		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>cisco find\n"));
	} else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
		(memcmp(mac->bssid, ap3_2, 3) == 0) ||
		(memcmp(mac->bssid, ap3_3, 3) == 0) ||
		vendor == PEER_BROAD) {
		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>broad find\n"));
		vendor = PEER_BROAD;
	} else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
		vendor == PEER_MARV) {
		vendor = PEER_MARV;
		RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>marv find\n"));
	}

	mac->vendor = vendor;
}

/*********************************************************
 *
 * sysfs functions
 *
 *********************************************************/
static ssize_t rtl_show_debug_level(struct device *d,
				    struct device_attribute *attr, char *buf)
{
	struct ieee80211_hw *hw = dev_get_drvdata(d);
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
}

static ssize_t rtl_store_debug_level(struct device *d,
				     struct device_attribute *attr,
				     const char *buf, size_t count)
{
	struct ieee80211_hw *hw = dev_get_drvdata(d);
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	unsigned long val;
	int ret;

	ret = strict_strtoul(buf, 0, &val);
	if (ret) {
		printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
	} else {
		rtlpriv->dbg.global_debuglevel = val;
		printk(KERN_DEBUG "debuglevel:%x\n",
		       rtlpriv->dbg.global_debuglevel);
	}

	return strnlen(buf, count);
}

static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
		   rtl_show_debug_level, rtl_store_debug_level);

static struct attribute *rtl_sysfs_entries[] = {

	&dev_attr_debug_level.attr,

	NULL
};

/*
 * "name" is folder name witch will be
 * put in device directory like :
 * sys/devices/pci0000:00/0000:00:1c.4/
 * 0000:06:00.0/rtl_sysfs
 */
struct attribute_group rtl_attribute_group = {
	.name = "rtlsysfs",
	.attrs = rtl_sysfs_entries,
};

MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");

static int __init rtl_core_module_init(void)
{
	if (rtl_rate_control_register())
		pr_err("Unable to register rtl_rc, use default RC !!\n");

	return 0;
}

static void __exit rtl_core_module_exit(void)
{
	/*RC*/
	rtl_rate_control_unregister();
}

module_init(rtl_core_module_init);
module_exit(rtl_core_module_exit);
OpenPOWER on IntegriCloud