summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
blob: 32ff959a0251bdf36cb69122b55a6fc438e3bdd0 (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
/******************************************************************************
 *
 * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
 *
 * 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>
 *
****************************************************************************/

#include "../wifi.h"
#include "../pci.h"
#include "../usb.h"
#include "../ps.h"
#include "../cam.h"
#include "reg.h"
#include "def.h"
#include "phy.h"
#include "rf.h"
#include "dm.h"
#include "mac.h"
#include "trx.h"

#include <linux/module.h>

/* macro to shorten lines */

#define LINK_Q	ui_link_quality
#define RX_EVM	rx_evm_percentage
#define RX_SIGQ	rx_mimo_sig_qual


void rtl92c_read_chip_version(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &(rtlpriv->phy);
	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
	enum version_8192c chip_version = VERSION_UNKNOWN;
	const char *versionid;
	u32 value32;

	value32 = rtl_read_dword(rtlpriv, REG_SYS_CFG);
	if (value32 & TRP_VAUX_EN) {
		chip_version = (value32 & TYPE_ID) ? VERSION_TEST_CHIP_92C :
			       VERSION_TEST_CHIP_88C;
	} else {
		/* Normal mass production chip. */
		chip_version = NORMAL_CHIP;
		chip_version |= ((value32 & TYPE_ID) ? CHIP_92C : 0);
		chip_version |= ((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : 0);
		/* RTL8723 with BT function. */
		chip_version |= ((value32 & BT_FUNC) ? CHIP_8723 : 0);
		if (IS_VENDOR_UMC(chip_version))
			chip_version |= ((value32 & CHIP_VER_RTL_MASK) ?
					 CHIP_VENDOR_UMC_B_CUT : 0);
		if (IS_92C_SERIAL(chip_version)) {
			value32 = rtl_read_dword(rtlpriv, REG_HPON_FSM);
			chip_version |= ((CHIP_BONDING_IDENTIFIER(value32) ==
				 CHIP_BONDING_92C_1T2R) ? CHIP_92C_1T2R : 0);
		} else if (IS_8723_SERIES(chip_version)) {
			value32 = rtl_read_dword(rtlpriv, REG_GPIO_OUTSTS);
			chip_version |= ((value32 & RF_RL_ID) ?
					  CHIP_8723_DRV_REV : 0);
		}
	}
	rtlhal->version  = (enum version_8192c)chip_version;
	pr_info("Chip version 0x%x\n", chip_version);
	switch (rtlhal->version) {
	case VERSION_NORMAL_TSMC_CHIP_92C_1T2R:
		versionid = "NORMAL_B_CHIP_92C";
		break;
	case VERSION_NORMAL_TSMC_CHIP_92C:
		versionid = "NORMAL_TSMC_CHIP_92C";
		break;
	case VERSION_NORMAL_TSMC_CHIP_88C:
		versionid = "NORMAL_TSMC_CHIP_88C";
		break;
	case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT:
		versionid = "NORMAL_UMC_CHIP_i92C_1T2R_A_CUT";
		break;
	case VERSION_NORMAL_UMC_CHIP_92C_A_CUT:
		versionid = "NORMAL_UMC_CHIP_92C_A_CUT";
		break;
	case VERSION_NORMAL_UMC_CHIP_88C_A_CUT:
		versionid = "NORMAL_UMC_CHIP_88C_A_CUT";
		break;
	case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT:
		versionid = "NORMAL_UMC_CHIP_92C_1T2R_B_CUT";
		break;
	case VERSION_NORMAL_UMC_CHIP_92C_B_CUT:
		versionid = "NORMAL_UMC_CHIP_92C_B_CUT";
		break;
	case VERSION_NORMAL_UMC_CHIP_88C_B_CUT:
		versionid = "NORMAL_UMC_CHIP_88C_B_CUT";
		break;
	case VERSION_NORMA_UMC_CHIP_8723_1T1R_A_CUT:
		versionid = "NORMAL_UMC_CHIP_8723_1T1R_A_CUT";
		break;
	case VERSION_NORMA_UMC_CHIP_8723_1T1R_B_CUT:
		versionid = "NORMAL_UMC_CHIP_8723_1T1R_B_CUT";
		break;
	case VERSION_TEST_CHIP_92C:
		versionid = "TEST_CHIP_92C";
		break;
	case VERSION_TEST_CHIP_88C:
		versionid = "TEST_CHIP_88C";
		break;
	default:
		versionid = "UNKNOWN";
		break;
	}
	RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
		 "Chip Version ID: %s\n", versionid);

	if (IS_92C_SERIAL(rtlhal->version))
		rtlphy->rf_type =
			 (IS_92C_1T2R(rtlhal->version)) ? RF_1T2R : RF_2T2R;
	else
		rtlphy->rf_type = RF_1T1R;
	RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
		 "Chip RF Type: %s\n",
		 rtlphy->rf_type == RF_2T2R ? "RF_2T2R" : "RF_1T1R");
	if (get_rf_type(rtlphy) == RF_1T1R)
		rtlpriv->dm.rfpath_rxenable[0] = true;
	else
		rtlpriv->dm.rfpath_rxenable[0] =
		    rtlpriv->dm.rfpath_rxenable[1] = true;
	RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "VersionID = 0x%4x\n",
		 rtlhal->version);
}

/**
 * writeLLT - LLT table write access
 * @io: io callback
 * @address: LLT logical address.
 * @data: LLT data content
 *
 * Realtek hardware access function.
 *
 */
bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	bool status = true;
	long count = 0;
	u32 value = _LLT_INIT_ADDR(address) |
	    _LLT_INIT_DATA(data) | _LLT_OP(_LLT_WRITE_ACCESS);

	rtl_write_dword(rtlpriv, REG_LLT_INIT, value);
	do {
		value = rtl_read_dword(rtlpriv, REG_LLT_INIT);
		if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value))
			break;
		if (count > POLLING_LLT_THRESHOLD) {
			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
				 "Failed to polling write LLT done at address %d! _LLT_OP_VALUE(%x)\n",
				 address, _LLT_OP_VALUE(value));
			status = false;
			break;
		}
	} while (++count);
	return status;
}
/**
 * rtl92c_init_LLT_table - Init LLT table
 * @io: io callback
 * @boundary:
 *
 * Realtek hardware access function.
 *
 */
bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary)
{
	bool rst = true;
	u32	i;

	for (i = 0; i < (boundary - 1); i++) {
		rst = rtl92c_llt_write(hw, i , i + 1);
		if (true != rst) {
			pr_err("===> %s #1 fail\n", __func__);
			return rst;
		}
	}
	/* end of list */
	rst = rtl92c_llt_write(hw, (boundary - 1), 0xFF);
	if (true != rst) {
		pr_err("===> %s #2 fail\n", __func__);
		return rst;
	}
	/* Make the other pages as ring buffer
	 * This ring buffer is used as beacon buffer if we config this MAC
	 *  as two MAC transfer.
	 * Otherwise used as local loopback buffer.
	 */
	for (i = boundary; i < LLT_LAST_ENTRY_OF_TX_PKT_BUFFER; i++) {
		rst = rtl92c_llt_write(hw, i, (i + 1));
		if (true != rst) {
			pr_err("===> %s #3 fail\n", __func__);
			return rst;
		}
	}
	/* Let last entry point to the start entry of ring buffer */
	rst = rtl92c_llt_write(hw, LLT_LAST_ENTRY_OF_TX_PKT_BUFFER, boundary);
	if (true != rst) {
		pr_err("===> %s #4 fail\n", __func__);
		return rst;
	}
	return rst;
}
void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index,
		     u8 *p_macaddr, bool is_group, u8 enc_algo,
		     bool is_wepkey, bool clear_all)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
	u8 *macaddr = p_macaddr;
	u32 entry_id = 0;
	bool is_pairwise = false;
	static u8 cam_const_addr[4][6] = {
		{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
		{0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
		{0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
		{0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
	};
	static u8 cam_const_broad[] = {
		0xff, 0xff, 0xff, 0xff, 0xff, 0xff
	};

	if (clear_all) {
		u8 idx = 0;
		u8 cam_offset = 0;
		u8 clear_number = 5;

		RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "clear_all\n");
		for (idx = 0; idx < clear_number; idx++) {
			rtl_cam_mark_invalid(hw, cam_offset + idx);
			rtl_cam_empty_entry(hw, cam_offset + idx);
			if (idx < 5) {
				memset(rtlpriv->sec.key_buf[idx], 0,
				       MAX_KEY_LEN);
				rtlpriv->sec.key_len[idx] = 0;
			}
		}
	} else {
		switch (enc_algo) {
		case WEP40_ENCRYPTION:
			enc_algo = CAM_WEP40;
			break;
		case WEP104_ENCRYPTION:
			enc_algo = CAM_WEP104;
			break;
		case TKIP_ENCRYPTION:
			enc_algo = CAM_TKIP;
			break;
		case AESCCMP_ENCRYPTION:
			enc_algo = CAM_AES;
			break;
		default:
			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
				 "illegal switch case\n");
			enc_algo = CAM_TKIP;
			break;
		}
		if (is_wepkey || rtlpriv->sec.use_defaultkey) {
			macaddr = cam_const_addr[key_index];
			entry_id = key_index;
		} else {
			if (is_group) {
				macaddr = cam_const_broad;
				entry_id = key_index;
			} else {
				key_index = PAIRWISE_KEYIDX;
				entry_id = CAM_PAIRWISE_KEY_POSITION;
				is_pairwise = true;
			}
		}
		if (rtlpriv->sec.key_len[key_index] == 0) {
			RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
				 "delete one entry\n");
			rtl_cam_delete_one_entry(hw, p_macaddr, entry_id);
		} else {
			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
				 "The insert KEY length is %d\n",
				 rtlpriv->sec.key_len[PAIRWISE_KEYIDX]);
			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
				 "The insert KEY is %x %x\n",
				 rtlpriv->sec.key_buf[0][0],
				 rtlpriv->sec.key_buf[0][1]);
			RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
				 "add one entry\n");
			if (is_pairwise) {
				RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD,
					      "Pairwise Key content",
					      rtlpriv->sec.pairwise_key,
					      rtlpriv->sec.
					      key_len[PAIRWISE_KEYIDX]);
				RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
					 "set Pairwise key\n");

				rtl_cam_add_one_entry(hw, macaddr, key_index,
						entry_id, enc_algo,
						CAM_CONFIG_NO_USEDK,
						rtlpriv->sec.
						key_buf[key_index]);
			} else {
				RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
					 "set group key\n");
				if (mac->opmode == NL80211_IFTYPE_ADHOC) {
					rtl_cam_add_one_entry(hw,
						rtlefuse->dev_addr,
						PAIRWISE_KEYIDX,
						CAM_PAIRWISE_KEY_POSITION,
						enc_algo,
						CAM_CONFIG_NO_USEDK,
						rtlpriv->sec.key_buf
						[entry_id]);
				}
				rtl_cam_add_one_entry(hw, macaddr, key_index,
						entry_id, enc_algo,
						CAM_CONFIG_NO_USEDK,
						rtlpriv->sec.key_buf[entry_id]);
			}
		}
	}
}

u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS);
}

void rtl92c_enable_interrupt(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	if (IS_HARDWARE_TYPE_8192CE(rtlhal)) {
		rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] &
				0xFFFFFFFF);
		rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] &
				0xFFFFFFFF);
	} else {
		rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] &
				0xFFFFFFFF);
		rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] &
				0xFFFFFFFF);
	}
}

void rtl92c_init_interrupt(struct ieee80211_hw *hw)
{
	 rtl92c_enable_interrupt(hw);
}

void rtl92c_disable_interrupt(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
	rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
}

void rtl92c_set_qos(struct ieee80211_hw *hw, int aci)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	u32 u4b_ac_param;

	rtl92c_dm_init_edca_turbo(hw);
	u4b_ac_param = (u32) mac->ac[aci].aifs;
	u4b_ac_param |=
	    ((u32) le16_to_cpu(mac->ac[aci].cw_min) & 0xF) <<
	    AC_PARAM_ECW_MIN_OFFSET;
	u4b_ac_param |=
	    ((u32) le16_to_cpu(mac->ac[aci].cw_max) & 0xF) <<
	    AC_PARAM_ECW_MAX_OFFSET;
	u4b_ac_param |= (u32) le16_to_cpu(mac->ac[aci].tx_op) <<
			 AC_PARAM_TXOP_OFFSET;
	RT_TRACE(rtlpriv, COMP_QOS, DBG_LOUD, "queue:%x, ac_param:%x\n",
		 aci, u4b_ac_param);
	switch (aci) {
	case AC1_BK:
		rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, u4b_ac_param);
		break;
	case AC0_BE:
		rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, u4b_ac_param);
		break;
	case AC2_VI:
		rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, u4b_ac_param);
		break;
	case AC3_VO:
		rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, u4b_ac_param);
		break;
	default:
		RT_ASSERT(false, "invalid aci: %d !\n", aci);
		break;
	}
}

/*-------------------------------------------------------------------------
 * HW MAC Address
 *-------------------------------------------------------------------------*/
void rtl92c_set_mac_addr(struct ieee80211_hw *hw, const u8 *addr)
{
	u32 i;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	for (i = 0 ; i < ETH_ALEN ; i++)
		rtl_write_byte(rtlpriv, (REG_MACID + i), *(addr+i));

	RT_TRACE(rtlpriv, COMP_CMD, DBG_DMESG,
		 "MAC Address: %02X-%02X-%02X-%02X-%02X-%02X\n",
		 rtl_read_byte(rtlpriv, REG_MACID),
		 rtl_read_byte(rtlpriv, REG_MACID+1),
		 rtl_read_byte(rtlpriv, REG_MACID+2),
		 rtl_read_byte(rtlpriv, REG_MACID+3),
		 rtl_read_byte(rtlpriv, REG_MACID+4),
		 rtl_read_byte(rtlpriv, REG_MACID+5));
}

void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size);
}

int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type)
{
	u8 value;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	switch (type) {
	case NL80211_IFTYPE_UNSPECIFIED:
		value = NT_NO_LINK;
		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
			 "Set Network type to NO LINK!\n");
		break;
	case NL80211_IFTYPE_ADHOC:
		value = NT_LINK_AD_HOC;
		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
			 "Set Network type to Ad Hoc!\n");
		break;
	case NL80211_IFTYPE_STATION:
		value = NT_LINK_AP;
		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
			 "Set Network type to STA!\n");
		break;
	case NL80211_IFTYPE_AP:
		value = NT_AS_AP;
		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
			 "Set Network type to AP!\n");
		break;
	default:
		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
			 "Network type %d not supported!\n", type);
		return -EOPNOTSUPP;
	}
	rtl_write_byte(rtlpriv, (REG_CR + 2), value);
	return 0;
}

void rtl92c_init_network_type(struct ieee80211_hw *hw)
{
	rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED);
}

void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw)
{
	u16	value16;
	u32	value32;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	/* Response Rate Set */
	value32 = rtl_read_dword(rtlpriv, REG_RRSR);
	value32 &= ~RATE_BITMAP_ALL;
	value32 |= RATE_RRSR_CCK_ONLY_1M;
	rtl_write_dword(rtlpriv, REG_RRSR, value32);
	/* SIFS (used in NAV) */
	value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10);
	rtl_write_word(rtlpriv,  REG_SPEC_SIFS, value16);
	/* Retry Limit */
	value16 = _LRL(0x30) | _SRL(0x30);
	rtl_write_dword(rtlpriv,  REG_RL, value16);
}

void rtl92c_init_rate_fallback(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	/* Set Data Auto Rate Fallback Retry Count register. */
	rtl_write_dword(rtlpriv,  REG_DARFRC, 0x00000000);
	rtl_write_dword(rtlpriv,  REG_DARFRC+4, 0x10080404);
	rtl_write_dword(rtlpriv,  REG_RARFRC, 0x04030201);
	rtl_write_dword(rtlpriv,  REG_RARFRC+4, 0x08070605);
}

static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
				u8 ctx_sifs)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs);
	rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs);
}

static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
				 u8 ctx_sifs)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs);
	rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs);
}

void rtl92c_init_edca_param(struct ieee80211_hw *hw,
			    u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs)
{
	/* sequence: VO, VI, BE, BK ==> the same as 92C hardware design.
	 * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function.
	 */
	u32 value;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	value = (u32)aifs;
	value |= ((u32)cw_min & 0xF) << 8;
	value |= ((u32)cw_max & 0xF) << 12;
	value |= (u32)txop << 16;
	/* 92C hardware register sequence is the same as queue number. */
	rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value);
}

void rtl92c_init_edca(struct ieee80211_hw *hw)
{
	u16 value16;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	/* disable EDCCA count down, to reduce collison and retry */
	value16 = rtl_read_word(rtlpriv, REG_RD_CTRL);
	value16 |= DIS_EDCA_CNT_DWN;
	rtl_write_word(rtlpriv, REG_RD_CTRL, value16);
	/* Update SIFS timing.  ??????????
	 * pHalData->SifsTime = 0x0e0e0a0a; */
	rtl92c_set_cck_sifs(hw, 0xa, 0xa);
	rtl92c_set_ofdm_sifs(hw, 0xe, 0xe);
	/* Set CCK/OFDM SIFS to be 10us. */
	rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a);
	rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010);
	rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204);
	rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004);
	/* TXOP */
	rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B);
	rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F);
	rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324);
	rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226);
	/* PIFS */
	rtl_write_byte(rtlpriv, REG_PIFS, 0x1C);
	/* AGGR BREAK TIME Register */
	rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
	rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040);
	rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02);
	rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02);
}

void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631);
	rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
	/* init AMPDU aggregation number, tuning for Tx's TP, */
	rtl_write_word(rtlpriv, 0x4CA, 0x0708);
}

void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw, bool infra_mode)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF);
}

void rtl92c_init_rdg_setting(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF);
	rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200);
	rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05);
}

void rtl92c_init_retry_function(struct ieee80211_hw *hw)
{
	u8	value8;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL);
	value8 |= EN_AMPDU_RTY_NEW;
	rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8);
	/* Set ACK timeout */
	rtl_write_byte(rtlpriv, REG_ACKTO, 0x40);
}

void rtl92c_init_beacon_parameters(struct ieee80211_hw *hw,
				   enum version_8192c version)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);

	rtl_write_word(rtlpriv, REG_TBTT_PROHIBIT, 0x6404);/* ms */
	rtl_write_byte(rtlpriv, REG_DRVERLYINT, DRIVER_EARLY_INT_TIME);/*ms*/
	rtl_write_byte(rtlpriv, REG_BCNDMATIM, BCN_DMA_ATIME_INT_TIME);
	if (IS_NORMAL_CHIP(rtlhal->version))
		rtl_write_word(rtlpriv, REG_BCNTCFG, 0x660F);
	else
		rtl_write_word(rtlpriv, REG_BCNTCFG, 0x66FF);
}

void rtl92c_disable_fast_edca(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0);
}

void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T;

	rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value);
}

u16 rtl92c_get_mgt_filter(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	return rtl_read_word(rtlpriv, REG_RXFLTMAP0);
}

void rtl92c_set_mgt_filter(struct ieee80211_hw *hw, u16 filter)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_word(rtlpriv, REG_RXFLTMAP0, filter);
}

u16 rtl92c_get_ctrl_filter(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	return rtl_read_word(rtlpriv, REG_RXFLTMAP1);
}

void rtl92c_set_ctrl_filter(struct ieee80211_hw *hw, u16 filter)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_word(rtlpriv, REG_RXFLTMAP1, filter);
}

u16 rtl92c_get_data_filter(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	return rtl_read_word(rtlpriv,  REG_RXFLTMAP2);
}

void rtl92c_set_data_filter(struct ieee80211_hw *hw, u16 filter)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_write_word(rtlpriv, REG_RXFLTMAP2, filter);
}
/*==============================================================*/

static u8 _rtl92c_query_rxpwrpercentage(char antpower)
{
	if ((antpower <= -100) || (antpower >= 20))
		return 0;
	else if (antpower >= 0)
		return 100;
	else
		return 100 + antpower;
}

static u8 _rtl92c_evm_db_to_percentage(char value)
{
	char ret_val;

	ret_val = value;
	if (ret_val >= 0)
		ret_val = 0;
	if (ret_val <= -33)
		ret_val = -33;
	ret_val = 0 - ret_val;
	ret_val *= 3;
	if (ret_val == 99)
		ret_val = 100;
	return ret_val;
}

static long _rtl92c_translate_todbm(struct ieee80211_hw *hw,
				     u8 signal_strength_index)
{
	long signal_power;

	signal_power = (long)((signal_strength_index + 1) >> 1);
	signal_power -= 95;
	return signal_power;
}

static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
		long currsig)
{
	long retsig;

	if (currsig >= 61 && currsig <= 100)
		retsig = 90 + ((currsig - 60) / 4);
	else if (currsig >= 41 && currsig <= 60)
		retsig = 78 + ((currsig - 40) / 2);
	else if (currsig >= 31 && currsig <= 40)
		retsig = 66 + (currsig - 30);
	else if (currsig >= 21 && currsig <= 30)
		retsig = 54 + (currsig - 20);
	else if (currsig >= 5 && currsig <= 20)
		retsig = 42 + (((currsig - 5) * 2) / 3);
	else if (currsig == 4)
		retsig = 36;
	else if (currsig == 3)
		retsig = 27;
	else if (currsig == 2)
		retsig = 18;
	else if (currsig == 1)
		retsig = 9;
	else
		retsig = currsig;
	return retsig;
}

static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
				      struct rtl_stats *pstats,
				      struct rx_desc_92c *pdesc,
				      struct rx_fwinfo_92c *p_drvinfo,
				      bool packet_match_bssid,
				      bool packet_toself,
				      bool packet_beacon)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &(rtlpriv->phy);
	struct phy_sts_cck_8192s_t *cck_buf;
	s8 rx_pwr_all = 0, rx_pwr[4];
	u8 rf_rx_num = 0, evm, pwdb_all;
	u8 i, max_spatial_stream;
	u32 rssi, total_rssi = 0;
	bool in_powersavemode = false;
	bool is_cck_rate;

	is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
	pstats->packet_matchbssid = packet_match_bssid;
	pstats->packet_toself = packet_toself;
	pstats->is_cck = is_cck_rate;
	pstats->packet_beacon = packet_beacon;
	pstats->is_cck = is_cck_rate;
	pstats->RX_SIGQ[0] = -1;
	pstats->RX_SIGQ[1] = -1;
	if (is_cck_rate) {
		u8 report, cck_highpwr;
		cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
		if (!in_powersavemode)
			cck_highpwr = rtlphy->cck_high_power;
		else
			cck_highpwr = false;
		if (!cck_highpwr) {
			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
			report = cck_buf->cck_agc_rpt & 0xc0;
			report = report >> 6;
			switch (report) {
			case 0x3:
				rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
				break;
			case 0x2:
				rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
				break;
			case 0x1:
				rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
				break;
			case 0x0:
				rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
				break;
			}
		} else {
			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
			report = p_drvinfo->cfosho[0] & 0x60;
			report = report >> 5;
			switch (report) {
			case 0x3:
				rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
				break;
			case 0x2:
				rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
				break;
			case 0x1:
				rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
				break;
			case 0x0:
				rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
				break;
			}
		}
		pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
		pstats->rx_pwdb_all = pwdb_all;
		pstats->recvsignalpower = rx_pwr_all;
		if (packet_match_bssid) {
			u8 sq;
			if (pstats->rx_pwdb_all > 40)
				sq = 100;
			else {
				sq = cck_buf->sq_rpt;
				if (sq > 64)
					sq = 0;
				else if (sq < 20)
					sq = 100;
				else
					sq = ((64 - sq) * 100) / 44;
			}
			pstats->signalquality = sq;
			pstats->RX_SIGQ[0] = sq;
			pstats->RX_SIGQ[1] = -1;
		}
	} else {
		rtlpriv->dm.rfpath_rxenable[0] =
		    rtlpriv->dm.rfpath_rxenable[1] = true;
		for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
			if (rtlpriv->dm.rfpath_rxenable[i])
				rf_rx_num++;
			rx_pwr[i] =
			    ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
			rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
			total_rssi += rssi;
			rtlpriv->stats.rx_snr_db[i] =
			    (long)(p_drvinfo->rxsnr[i] / 2);

			if (packet_match_bssid)
				pstats->rx_mimo_signalstrength[i] = (u8) rssi;
		}
		rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
		pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
		pstats->rx_pwdb_all = pwdb_all;
		pstats->rxpower = rx_pwr_all;
		pstats->recvsignalpower = rx_pwr_all;
		if (GET_RX_DESC_RX_MCS(pdesc) &&
		    GET_RX_DESC_RX_MCS(pdesc) >= DESC92_RATEMCS8 &&
		    GET_RX_DESC_RX_MCS(pdesc) <= DESC92_RATEMCS15)
			max_spatial_stream = 2;
		else
			max_spatial_stream = 1;
		for (i = 0; i < max_spatial_stream; i++) {
			evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
			if (packet_match_bssid) {
				if (i == 0)
					pstats->signalquality =
					    (u8) (evm & 0xff);
				pstats->RX_SIGQ[i] =
				    (u8) (evm & 0xff);
			}
		}
	}
	if (is_cck_rate)
		pstats->signalstrength =
		    (u8) (_rtl92c_signal_scale_mapping(hw, pwdb_all));
	else if (rf_rx_num != 0)
		pstats->signalstrength =
		    (u8) (_rtl92c_signal_scale_mapping
			  (hw, total_rssi /= rf_rx_num));
}

static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw,
		struct rtl_stats *pstats)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &(rtlpriv->phy);
	u8 rfpath;
	u32 last_rssi, tmpval;

	if (pstats->packet_toself || pstats->packet_beacon) {
		rtlpriv->stats.rssi_calculate_cnt++;
		if (rtlpriv->stats.ui_rssi.total_num++ >=
		    PHY_RSSI_SLID_WIN_MAX) {
			rtlpriv->stats.ui_rssi.total_num =
			    PHY_RSSI_SLID_WIN_MAX;
			last_rssi =
			    rtlpriv->stats.ui_rssi.elements[rtlpriv->
							   stats.ui_rssi.index];
			rtlpriv->stats.ui_rssi.total_val -= last_rssi;
		}
		rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
		rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
					index++] = pstats->signalstrength;
		if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
			rtlpriv->stats.ui_rssi.index = 0;
		tmpval = rtlpriv->stats.ui_rssi.total_val /
		    rtlpriv->stats.ui_rssi.total_num;
		rtlpriv->stats.signal_strength =
		    _rtl92c_translate_todbm(hw, (u8) tmpval);
		pstats->rssi = rtlpriv->stats.signal_strength;
	}
	if (!pstats->is_cck && pstats->packet_toself) {
		for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
		     rfpath++) {
			if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
				continue;
			if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
				rtlpriv->stats.rx_rssi_percentage[rfpath] =
				    pstats->rx_mimo_signalstrength[rfpath];
			}
			if (pstats->rx_mimo_signalstrength[rfpath] >
			    rtlpriv->stats.rx_rssi_percentage[rfpath]) {
				rtlpriv->stats.rx_rssi_percentage[rfpath] =
				    ((rtlpriv->stats.
				      rx_rssi_percentage[rfpath] *
				      (RX_SMOOTH_FACTOR - 1)) +
				     (pstats->rx_mimo_signalstrength[rfpath])) /
				    (RX_SMOOTH_FACTOR);

				rtlpriv->stats.rx_rssi_percentage[rfpath] =
				    rtlpriv->stats.rx_rssi_percentage[rfpath] +
				    1;
			} else {
				rtlpriv->stats.rx_rssi_percentage[rfpath] =
				    ((rtlpriv->stats.
				      rx_rssi_percentage[rfpath] *
				      (RX_SMOOTH_FACTOR - 1)) +
				     (pstats->rx_mimo_signalstrength[rfpath])) /
				    (RX_SMOOTH_FACTOR);
			}
		}
	}
}

static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw,
					       struct rtl_stats *pstats)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	int weighting = 0;

	if (rtlpriv->stats.recv_signal_power == 0)
		rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
	if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
		weighting = 5;
	else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
		weighting = (-5);
	rtlpriv->stats.recv_signal_power =
	    (rtlpriv->stats.recv_signal_power * 5 +
	     pstats->recvsignalpower + weighting) / 6;
}

static void _rtl92c_process_pwdb(struct ieee80211_hw *hw,
		struct rtl_stats *pstats)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	long undec_sm_pwdb = 0;

	if (mac->opmode == NL80211_IFTYPE_ADHOC) {
		return;
	} else {
		undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
	}
	if (pstats->packet_toself || pstats->packet_beacon) {
		if (undec_sm_pwdb < 0)
			undec_sm_pwdb = pstats->rx_pwdb_all;
		if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
			undec_sm_pwdb = (((undec_sm_pwdb) *
			      (RX_SMOOTH_FACTOR - 1)) +
			     (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
			undec_sm_pwdb += 1;
		} else {
			undec_sm_pwdb = (((undec_sm_pwdb) *
			      (RX_SMOOTH_FACTOR - 1)) +
			     (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
		}
		rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
		_rtl92c_update_rxsignalstatistics(hw, pstats);
	}
}

static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw,
					     struct rtl_stats *pstats)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	u32 last_evm = 0, n_stream, tmpval;

	if (pstats->signalquality != 0) {
		if (pstats->packet_toself || pstats->packet_beacon) {
			if (rtlpriv->stats.LINK_Q.total_num++ >=
			    PHY_LINKQUALITY_SLID_WIN_MAX) {
				rtlpriv->stats.LINK_Q.total_num =
				    PHY_LINKQUALITY_SLID_WIN_MAX;
				last_evm =
				    rtlpriv->stats.LINK_Q.elements
				    [rtlpriv->stats.LINK_Q.index];
				rtlpriv->stats.LINK_Q.total_val -=
				    last_evm;
			}
			rtlpriv->stats.LINK_Q.total_val +=
			    pstats->signalquality;
			rtlpriv->stats.LINK_Q.elements
			   [rtlpriv->stats.LINK_Q.index++] =
			    pstats->signalquality;
			if (rtlpriv->stats.LINK_Q.index >=
			    PHY_LINKQUALITY_SLID_WIN_MAX)
				rtlpriv->stats.LINK_Q.index = 0;
			tmpval = rtlpriv->stats.LINK_Q.total_val /
			    rtlpriv->stats.LINK_Q.total_num;
			rtlpriv->stats.signal_quality = tmpval;
			rtlpriv->stats.last_sigstrength_inpercent = tmpval;
			for (n_stream = 0; n_stream < 2;
			     n_stream++) {
				if (pstats->RX_SIGQ[n_stream] != -1) {
					if (!rtlpriv->stats.RX_EVM[n_stream]) {
						rtlpriv->stats.RX_EVM[n_stream]
						 = pstats->RX_SIGQ[n_stream];
					}
					rtlpriv->stats.RX_EVM[n_stream] =
					    ((rtlpriv->stats.RX_EVM
					    [n_stream] *
					    (RX_SMOOTH_FACTOR - 1)) +
					    (pstats->RX_SIGQ
					    [n_stream] * 1)) /
					    (RX_SMOOTH_FACTOR);
				}
			}
		}
	} else {
		;
	}
}

static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw,
				     u8 *buffer,
				     struct rtl_stats *pcurrent_stats)
{
	if (!pcurrent_stats->packet_matchbssid &&
	    !pcurrent_stats->packet_beacon)
		return;
	_rtl92c_process_ui_rssi(hw, pcurrent_stats);
	_rtl92c_process_pwdb(hw, pcurrent_stats);
	_rtl92c_process_LINK_Q(hw, pcurrent_stats);
}

void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
					       struct sk_buff *skb,
					       struct rtl_stats *pstats,
					       struct rx_desc_92c *pdesc,
					       struct rx_fwinfo_92c *p_drvinfo)
{
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
	struct ieee80211_hdr *hdr;
	u8 *tmp_buf;
	u8 *praddr;
	__le16 fc;
	u16 type, cpu_fc;
	bool packet_matchbssid, packet_toself, packet_beacon;

	tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
	hdr = (struct ieee80211_hdr *)tmp_buf;
	fc = hdr->frame_control;
	cpu_fc = le16_to_cpu(fc);
	type = WLAN_FC_GET_TYPE(fc);
	praddr = hdr->addr1;
	packet_matchbssid =
	    ((IEEE80211_FTYPE_CTL != type) &&
	     ether_addr_equal(mac->bssid,
			      (cpu_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
			      (cpu_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
			      hdr->addr3) &&
	     (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));

	packet_toself = packet_matchbssid &&
	    ether_addr_equal(praddr, rtlefuse->dev_addr);
	if (ieee80211_is_beacon(fc))
		packet_beacon = true;
	_rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
				   packet_matchbssid, packet_toself,
				   packet_beacon);
	_rtl92c_process_phyinfo(hw, tmp_buf, pstats);
}