-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathmain.c
1267 lines (1091 loc) · 32.8 KB
/
main.c
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
/*
* Copyright (c) 2013 Eugene Krasnikov <[email protected]>
* Copyright (c) 2013 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/platform_device.h>
#include "wcn36xx.h"
unsigned int wcn36xx_dbg_mask;
module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
MODULE_PARM_DESC(debug_mask, "Debugging mask");
int wcn36xx_nohwcrypt;
module_param_named(nohwcrypt, wcn36xx_nohwcrypt, int, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
#define CHAN2G(_freq, _idx) { \
.band = IEEE80211_BAND_2GHZ, \
.center_freq = (_freq), \
.hw_value = (_idx), \
.max_power = 25, \
}
#define CHAN5G(_freq, _idx) { \
.band = IEEE80211_BAND_5GHZ, \
.center_freq = (_freq), \
.hw_value = (_idx), \
.max_power = 25, \
}
/* The wcn firmware expects channel values to matching
* their mnemonic values. So use these for .hw_value. */
static struct ieee80211_channel wcn_2ghz_channels[] = {
CHAN2G(2412, 1), /* Channel 1 */
CHAN2G(2417, 2), /* Channel 2 */
CHAN2G(2422, 3), /* Channel 3 */
CHAN2G(2427, 4), /* Channel 4 */
CHAN2G(2432, 5), /* Channel 5 */
CHAN2G(2437, 6), /* Channel 6 */
CHAN2G(2442, 7), /* Channel 7 */
CHAN2G(2447, 8), /* Channel 8 */
CHAN2G(2452, 9), /* Channel 9 */
CHAN2G(2457, 10), /* Channel 10 */
CHAN2G(2462, 11), /* Channel 11 */
CHAN2G(2467, 12), /* Channel 12 */
CHAN2G(2472, 13), /* Channel 13 */
CHAN2G(2484, 14) /* Channel 14 */
};
static struct ieee80211_channel wcn_5ghz_channels[] = {
CHAN5G(5180, 36),
CHAN5G(5200, 40),
CHAN5G(5220, 44),
CHAN5G(5240, 48),
CHAN5G(5260, 52),
CHAN5G(5280, 56),
CHAN5G(5300, 60),
CHAN5G(5320, 64),
CHAN5G(5500, 100),
CHAN5G(5520, 104),
CHAN5G(5540, 108),
CHAN5G(5560, 112),
CHAN5G(5580, 116),
CHAN5G(5600, 120),
CHAN5G(5620, 124),
CHAN5G(5640, 128),
CHAN5G(5660, 132),
CHAN5G(5700, 140),
CHAN5G(5745, 149),
CHAN5G(5765, 153),
CHAN5G(5785, 157),
CHAN5G(5805, 161),
CHAN5G(5825, 165)
};
#define RATE(_bitrate, _hw_rate, _flags) { \
.bitrate = (_bitrate), \
.flags = (_flags), \
.hw_value = (_hw_rate), \
.hw_value_short = (_hw_rate) \
}
static struct ieee80211_rate wcn_2ghz_rates[] = {
RATE(10, HW_RATE_INDEX_1MBPS, 0),
RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
RATE(60, HW_RATE_INDEX_6MBPS, 0),
RATE(90, HW_RATE_INDEX_9MBPS, 0),
RATE(120, HW_RATE_INDEX_12MBPS, 0),
RATE(180, HW_RATE_INDEX_18MBPS, 0),
RATE(240, HW_RATE_INDEX_24MBPS, 0),
RATE(360, HW_RATE_INDEX_36MBPS, 0),
RATE(480, HW_RATE_INDEX_48MBPS, 0),
RATE(540, HW_RATE_INDEX_54MBPS, 0)
};
static struct ieee80211_rate wcn_5ghz_rates[] = {
RATE(60, HW_RATE_INDEX_6MBPS, 0),
RATE(90, HW_RATE_INDEX_9MBPS, 0),
RATE(120, HW_RATE_INDEX_12MBPS, 0),
RATE(180, HW_RATE_INDEX_18MBPS, 0),
RATE(240, HW_RATE_INDEX_24MBPS, 0),
RATE(360, HW_RATE_INDEX_36MBPS, 0),
RATE(480, HW_RATE_INDEX_48MBPS, 0),
RATE(540, HW_RATE_INDEX_54MBPS, 0)
};
static struct ieee80211_supported_band wcn_band_2ghz = {
.channels = wcn_2ghz_channels,
.n_channels = ARRAY_SIZE(wcn_2ghz_channels),
.bitrates = wcn_2ghz_rates,
.n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
.ht_cap = {
.cap = IEEE80211_HT_CAP_GRN_FLD |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_DSSSCCK40 |
IEEE80211_HT_CAP_LSIG_TXOP_PROT |
IEEE80211_HT_CAP_SUP_WIDTH_20_40,
.ht_supported = true,
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
.mcs = {
.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
.rx_highest = cpu_to_le16(72),
.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
}
}
};
static struct ieee80211_supported_band wcn_band_5ghz = {
.channels = wcn_5ghz_channels,
.n_channels = ARRAY_SIZE(wcn_5ghz_channels),
.bitrates = wcn_5ghz_rates,
.n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
.ht_cap = {
.cap = IEEE80211_HT_CAP_GRN_FLD |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_DSSSCCK40 |
IEEE80211_HT_CAP_LSIG_TXOP_PROT |
IEEE80211_HT_CAP_SGI_40 |
IEEE80211_HT_CAP_SUP_WIDTH_20_40,
.ht_supported = true,
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
.mcs = {
.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
.rx_highest = cpu_to_le16(72),
.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
}
}
};
#ifdef CONFIG_PM
static const struct wiphy_wowlan_support wowlan_support = {
.flags = WIPHY_WOWLAN_ANY
};
#endif
static inline u8 get_sta_index(struct ieee80211_vif *vif,
struct wcn36xx_sta *sta_priv)
{
return NL80211_IFTYPE_STATION == vif->type ?
sta_priv->bss_sta_index :
sta_priv->sta_index;
}
static const char * const wcn36xx_caps_names[] = {
"MCC", /* 0 */
"P2P", /* 1 */
"DOT11AC", /* 2 */
"SLM_SESSIONIZATION", /* 3 */
"DOT11AC_OPMODE", /* 4 */
"SAP32STA", /* 5 */
"TDLS", /* 6 */
"P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
"WLANACTIVE_OFFLOAD", /* 8 */
"BEACON_OFFLOAD", /* 9 */
"SCAN_OFFLOAD", /* 10 */
"ROAM_OFFLOAD", /* 11 */
"BCN_MISS_OFFLOAD", /* 12 */
"STA_POWERSAVE", /* 13 */
"STA_ADVANCED_PWRSAVE", /* 14 */
"AP_UAPSD", /* 15 */
"AP_DFS", /* 16 */
"BLOCKACK", /* 17 */
"PHY_ERR", /* 18 */
"BCN_FILTER", /* 19 */
"RTT", /* 20 */
"RATECTRL", /* 21 */
"WOW" /* 22 */
};
static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
{
if (x >= ARRAY_SIZE(wcn36xx_caps_names))
return "UNKNOWN";
return wcn36xx_caps_names[x];
}
static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
{
int i;
for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
if (get_feat_caps(wcn->fw_feat_caps, i))
wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
}
}
static void wcn36xx_detect_chip_version(struct wcn36xx *wcn)
{
if (get_feat_caps(wcn->fw_feat_caps, DOT11AC)) {
wcn36xx_info("Chip is 3680\n");
wcn->chip_version = WCN36XX_CHIP_3680;
} else {
wcn36xx_info("Chip is 3660\n");
wcn->chip_version = WCN36XX_CHIP_3660;
}
}
static int wcn36xx_start(struct ieee80211_hw *hw)
{
struct wcn36xx *wcn = hw->priv;
int ret;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
/* SMD initialization */
ret = wcn36xx_smd_open(wcn);
if (ret) {
wcn36xx_err("Failed to open smd channel: %d\n", ret);
goto out_err;
}
/* Allocate memory pools for Mgmt BD headers and Data BD headers */
ret = wcn36xx_dxe_allocate_mem_pools(wcn);
if (ret) {
wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
goto out_smd_close;
}
ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
if (ret) {
wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
goto out_free_dxe_pool;
}
wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
if (!wcn->hal_buf) {
wcn36xx_err("Failed to allocate smd buf\n");
ret = -ENOMEM;
goto out_free_dxe_ctl;
}
ret = wcn36xx_smd_load_nv(wcn);
if (ret) {
wcn36xx_err("Failed to push NV to chip\n");
goto out_free_smd_buf;
}
ret = wcn36xx_smd_start(wcn);
if (ret) {
wcn36xx_err("Failed to start chip\n");
goto out_free_smd_buf;
}
if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
ret = wcn36xx_smd_feature_caps_exchange(wcn);
if (ret)
wcn36xx_warn("Exchange feature caps failed\n");
else
wcn36xx_feat_caps_info(wcn);
}
wcn36xx_detect_chip_version(wcn);
wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_ENABLE_MC_ADDR_LIST, 1);
/* DMA channel initialization */
ret = wcn36xx_dxe_init(wcn);
if (ret) {
wcn36xx_err("DXE init failed\n");
goto out_smd_stop;
}
wcn36xx_debugfs_init(wcn);
if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
ret = wcn36xx_smd_feature_caps_exchange(wcn);
if (ret)
wcn36xx_warn("Exchange feature caps failed\n");
}
INIT_LIST_HEAD(&wcn->vif_list);
spin_lock_init(&wcn->dxe_lock);
return 0;
out_smd_stop:
wcn36xx_smd_stop(wcn);
out_free_smd_buf:
kfree(wcn->hal_buf);
out_free_dxe_pool:
wcn36xx_dxe_free_mem_pools(wcn);
out_free_dxe_ctl:
wcn36xx_dxe_free_ctl_blks(wcn);
out_smd_close:
wcn36xx_smd_close(wcn);
out_err:
return ret;
}
static void wcn36xx_stop(struct ieee80211_hw *hw)
{
struct wcn36xx *wcn = hw->priv;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
wcn36xx_debugfs_exit(wcn);
wcn36xx_smd_stop(wcn);
wcn36xx_dxe_deinit(wcn);
wcn36xx_smd_close(wcn);
wcn36xx_dxe_free_mem_pools(wcn);
wcn36xx_dxe_free_ctl_blks(wcn);
kfree(wcn->hal_buf);
}
static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
{
struct wcn36xx *wcn = hw->priv;
struct ieee80211_vif *vif = NULL;
struct wcn36xx_vif *tmp;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
int ch = WCN36XX_HW_CHANNEL(wcn);
wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
ch);
list_for_each_entry(tmp, &wcn->vif_list, list) {
vif = wcn36xx_priv_to_vif(tmp);
wcn36xx_smd_switch_channel(wcn, vif, ch);
}
}
return 0;
}
#define WCN36XX_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI)
static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
unsigned int changed,
unsigned int *total, u64 multicast)
{
struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_vif *tmp;
struct ieee80211_vif *vif = NULL;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
*total &= WCN36XX_SUPPORTED_FILTERS;
fp = (void *)(unsigned long)multicast;
list_for_each_entry(tmp, &wcn->vif_list, list) {
vif = wcn36xx_priv_to_vif(tmp);
/* FW handles MC filtering only when connected as STA */
if (*total & (FIF_ALLMULTI | FIF_PROMISC_IN_BSS))
wcn36xx_smd_set_mc_list(wcn, vif, NULL);
else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
wcn36xx_smd_set_mc_list(wcn, vif, fp);
}
kfree(fp);
}
static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
struct netdev_hw_addr_list *mc_list)
{
struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
struct netdev_hw_addr *ha;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
if (!fp) {
wcn36xx_err("Out of memory setting filters.\n");
return 0;
}
fp->mc_addr_count = 0;
/* update multicast filtering parameters */
if (netdev_hw_addr_list_count(mc_list) <=
WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
netdev_hw_addr_list_for_each(ha, mc_list) {
memcpy(fp->mc_addr[fp->mc_addr_count],
ha->addr, ETH_ALEN);
fp->mc_addr_count++;
}
}
return (u64)(unsigned long)fp;
}
static void wcn36xx_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_sta *sta_priv = NULL;
if (control->sta)
sta_priv = wcn36xx_sta_to_priv(control->sta);
if (wcn36xx_start_tx(wcn, sta_priv, skb))
ieee80211_free_txskb(wcn->hw, skb);
}
static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key_conf)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
struct wcn36xx_sta *sta_priv = NULL;
int ret = 0;
u8 key[WLAN_MAX_KEY_LEN];
if (sta)
sta_priv = wcn36xx_sta_to_priv(sta);
if (wcn36xx_nohwcrypt) {
if (sta)
sta_priv->is_data_encrypted = (cmd == SET_KEY);
return -ENOSPC;
}
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
cmd, key_conf->cipher, key_conf->keyidx,
key_conf->keylen, key_conf->flags);
wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
key_conf->key,
key_conf->keylen);
switch (key_conf->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
break;
case WLAN_CIPHER_SUITE_WEP104:
vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
break;
case WLAN_CIPHER_SUITE_CCMP:
vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
break;
case WLAN_CIPHER_SUITE_TKIP:
vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
break;
default:
wcn36xx_err("Unsupported key type 0x%x\n",
key_conf->cipher);
ret = -EOPNOTSUPP;
goto out;
}
switch (cmd) {
case SET_KEY:
if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
/*
* Supplicant is sending key in the wrong order:
* Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
* but HW expects it to be in the order as described in
* IEEE 802.11 spec (see chapter 11.7) like this:
* Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
*/
memcpy(key, key_conf->key, 16);
memcpy(key + 16, key_conf->key + 24, 8);
memcpy(key + 24, key_conf->key + 16, 8);
} else {
memcpy(key, key_conf->key, key_conf->keylen);
}
if (sta && (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
sta_priv->is_data_encrypted = true;
/* Reconfigure bss with encrypt_type */
if (NL80211_IFTYPE_STATION == vif->type)
wcn36xx_smd_config_bss(wcn,
vif,
sta,
sta->addr,
true);
wcn36xx_smd_set_stakey(wcn,
vif_priv->encrypt_type,
key_conf->keyidx,
key_conf->keylen,
key,
get_sta_index(vif, sta_priv));
} else {
wcn36xx_smd_set_bsskey(wcn,
vif_priv->encrypt_type,
key_conf->keyidx,
key_conf->keylen,
key);
if (sta &&
((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
(WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher))) {
sta_priv->is_data_encrypted = true;
wcn36xx_smd_set_stakey(wcn,
vif_priv->encrypt_type,
key_conf->keyidx,
key_conf->keylen,
key,
get_sta_index(vif, sta_priv));
}
}
break;
case DISABLE_KEY:
if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
wcn36xx_smd_remove_bsskey(wcn,
vif_priv->encrypt_type,
key_conf->keyidx);
} else if (sta) {
sta_priv->is_data_encrypted = false;
/* do not remove key if disassociated */
if (sta_priv->aid)
wcn36xx_smd_remove_stakey(wcn,
vif_priv->encrypt_type,
key_conf->keyidx,
get_sta_index(vif, sta_priv));
}
break;
default:
wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
ret = -EOPNOTSUPP;
goto out;
break;
}
out:
return ret;
}
static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw)
{
struct wcn36xx *wcn = hw->priv;
wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
wcn36xx_smd_start_scan(wcn);
}
static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw)
{
struct wcn36xx *wcn = hw->priv;
wcn36xx_smd_end_scan(wcn);
wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
}
static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
enum ieee80211_band band)
{
int i, size;
u16 *rates_table;
struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
u32 rates = sta->supp_rates[band];
memset(&sta_priv->supported_rates, 0,
sizeof(sta_priv->supported_rates));
sta_priv->supported_rates.op_rate_mode = STA_11n;
size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
rates_table = sta_priv->supported_rates.dsss_rates;
if (band == IEEE80211_BAND_2GHZ) {
for (i = 0; i < size; i++) {
if (rates & 0x01) {
rates_table[i] = wcn_2ghz_rates[i].hw_value;
rates = rates >> 1;
}
}
}
size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
rates_table = sta_priv->supported_rates.ofdm_rates;
for (i = 0; i < size; i++) {
if (rates & 0x01) {
rates_table[i] = wcn_5ghz_rates[i].hw_value;
rates = rates >> 1;
}
}
if (sta->ht_cap.ht_supported) {
BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
sizeof(sta_priv->supported_rates.supported_mcs_set));
memcpy(sta_priv->supported_rates.supported_mcs_set,
sta->ht_cap.mcs.rx_mask,
sizeof(sta->ht_cap.mcs.rx_mask));
}
}
void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
{
u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
HW_RATE_INDEX_6MBPS,
HW_RATE_INDEX_9MBPS,
HW_RATE_INDEX_12MBPS,
HW_RATE_INDEX_18MBPS,
HW_RATE_INDEX_24MBPS,
HW_RATE_INDEX_36MBPS,
HW_RATE_INDEX_48MBPS,
HW_RATE_INDEX_54MBPS
};
u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
HW_RATE_INDEX_1MBPS,
HW_RATE_INDEX_2MBPS,
HW_RATE_INDEX_5_5MBPS,
HW_RATE_INDEX_11MBPS
};
rates->op_rate_mode = STA_11n;
memcpy(rates->dsss_rates, dsss_rates,
sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
memcpy(rates->ofdm_rates, ofdm_rates,
sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
rates->supported_mcs_set[0] = 0xFF;
}
static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changed)
{
struct wcn36xx *wcn = hw->priv;
struct sk_buff *skb = NULL;
u16 tim_off, tim_len;
enum wcn36xx_hal_link_state link_state;
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
vif, changed);
if (changed & BSS_CHANGED_BEACON_INFO) {
wcn36xx_dbg(WCN36XX_DBG_MAC,
"mac bss changed dtim period %d\n",
bss_conf->dtim_period);
vif_priv->dtim_period = bss_conf->dtim_period;
}
if (changed & BSS_CHANGED_PS) {
wcn36xx_dbg(WCN36XX_DBG_MAC,
"mac bss PS set %d\n",
bss_conf->ps);
if (bss_conf->ps) {
wcn36xx_pmc_enter_bmps_state(wcn, vif);
} else {
wcn36xx_pmc_exit_bmps_state(wcn, vif);
}
}
if (changed & BSS_CHANGED_BSSID) {
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
bss_conf->bssid);
if (!is_zero_ether_addr(bss_conf->bssid)) {
vif_priv->is_joining = true;
vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
wcn36xx_smd_join(wcn, bss_conf->bssid,
vif->addr, WCN36XX_HW_CHANNEL(wcn));
wcn36xx_smd_config_bss(wcn, vif, NULL,
bss_conf->bssid, false);
} else {
vif_priv->is_joining = false;
wcn36xx_smd_delete_bss(wcn, vif);
vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
}
}
if (changed & BSS_CHANGED_SSID) {
wcn36xx_dbg(WCN36XX_DBG_MAC,
"mac bss changed ssid\n");
wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
bss_conf->ssid, bss_conf->ssid_len);
vif_priv->ssid.length = bss_conf->ssid_len;
memcpy(&vif_priv->ssid.ssid,
bss_conf->ssid,
bss_conf->ssid_len);
}
if (changed & BSS_CHANGED_ASSOC) {
vif_priv->is_joining = false;
if (bss_conf->assoc) {
struct ieee80211_sta *sta;
struct wcn36xx_sta *sta_priv;
wcn36xx_dbg(WCN36XX_DBG_MAC,
"mac assoc bss %pM vif %pM AID=%d\n",
bss_conf->bssid,
vif->addr,
bss_conf->aid);
vif_priv->sta_assoc = true;
rcu_read_lock();
sta = ieee80211_find_sta(vif, bss_conf->bssid);
if (!sta) {
wcn36xx_err("sta %pM is not found\n",
bss_conf->bssid);
rcu_read_unlock();
goto out;
}
sta_priv = wcn36xx_sta_to_priv(sta);
wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
vif->addr,
WCN36XX_HAL_LINK_POSTASSOC_STATE);
wcn36xx_smd_config_bss(wcn, vif, sta,
bss_conf->bssid,
true);
sta_priv->aid = bss_conf->aid;
/*
* config_sta must be called from because this is the
* place where AID is available.
*/
wcn36xx_smd_config_sta(wcn, vif, sta, 0);
rcu_read_unlock();
} else {
wcn36xx_dbg(WCN36XX_DBG_MAC,
"disassociated bss %pM vif %pM AID=%d\n",
bss_conf->bssid,
vif->addr,
bss_conf->aid);
vif_priv->sta_assoc = false;
wcn36xx_smd_set_link_st(wcn,
bss_conf->bssid,
vif->addr,
WCN36XX_HAL_LINK_IDLE_STATE);
}
}
if (changed & BSS_CHANGED_AP_PROBE_RESP) {
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
skb = ieee80211_proberesp_get(hw, vif);
if (!skb) {
wcn36xx_err("failed to alloc probereq skb\n");
goto out;
}
wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
dev_kfree_skb(skb);
}
if (changed & BSS_CHANGED_BEACON_ENABLED ||
changed & BSS_CHANGED_BEACON) {
wcn36xx_dbg(WCN36XX_DBG_MAC,
"mac bss changed beacon enabled %d\n",
bss_conf->enable_beacon);
if (bss_conf->enable_beacon) {
vif_priv->dtim_period = bss_conf->dtim_period;
vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
wcn36xx_smd_config_bss(wcn, vif, NULL,
vif->addr, false);
skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
&tim_len);
if (!skb) {
wcn36xx_err("failed to alloc beacon skb\n");
goto out;
}
wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
dev_kfree_skb(skb);
if (vif->type == NL80211_IFTYPE_ADHOC ||
vif->type == NL80211_IFTYPE_MESH_POINT)
link_state = WCN36XX_HAL_LINK_IBSS_STATE;
else
link_state = WCN36XX_HAL_LINK_AP_STATE;
wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
link_state);
} else {
wcn36xx_smd_send_beacon(wcn, vif, NULL, tim_off, 0);
}
}
out:
return;
}
/* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
struct wcn36xx *wcn = hw->priv;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
return 0;
}
static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
list_del(&vif_priv->list);
wcn36xx_smd_delete_sta_self(wcn, vif->addr);
}
static int wcn36xx_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
vif, vif->type);
if (!(NL80211_IFTYPE_STATION == vif->type ||
NL80211_IFTYPE_AP == vif->type ||
NL80211_IFTYPE_ADHOC == vif->type ||
NL80211_IFTYPE_MESH_POINT == vif->type)) {
wcn36xx_warn("Unsupported interface type requested: %d\n",
vif->type);
return -EOPNOTSUPP;
}
INIT_LIST_HEAD(&vif_priv->sta_list);
spin_lock_init(&vif_priv->sta_list_spinlock);
list_add(&vif_priv->list, &wcn->vif_list);
wcn36xx_smd_add_sta_self(wcn, vif);
return 0;
}
static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
struct wcn36xx_sta *sta_priv_existing = NULL;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
vif, sta->addr);
sta_priv->vif = vif_priv;
spin_lock(&vif_priv->sta_list_spinlock);
sta_priv_existing = wcn36xx_find_sta(vif_priv, sta->addr);
if (sta_priv_existing)
sta_priv = sta_priv_existing;
else
list_add(&sta_priv->list, &vif_priv->sta_list);
spin_unlock(&vif_priv->sta_list_spinlock);
spin_lock_init(&sta_priv->ampdu_lock);
/*
* For STA mode HW will be configured on BSS_CHANGED_ASSOC because
* at this stage AID is not available yet.
*/
if (NL80211_IFTYPE_STATION != vif->type) {
wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
sta_priv->aid = sta->aid;
if (sta_priv_existing)
wcn36xx_smd_config_sta(wcn, vif, sta, 1);
else
wcn36xx_smd_config_sta(wcn, vif, sta, 0);
}
return 0;
}
static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
struct wcn36xx_sta *sta_priv_existing = NULL;
u16 sta_index;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
vif, sta->addr, sta_priv->sta_index);
spin_lock(&vif_priv->sta_list_spinlock);
sta_priv_existing = wcn36xx_find_sta(vif_priv, sta->addr);
if (sta_priv_existing)
{
list_del(&sta_priv_existing->list);
sta_priv_existing->vif = NULL;
sta_index = sta_priv_existing->sta_index;
}
spin_unlock(&vif_priv->sta_list_spinlock);
if (sta_priv_existing) {
wcn36xx_smd_delete_sta(wcn, sta_index);
} else {
sta_priv->vif = NULL;
wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
}
return 0;
}
static int wcn36xx_link_stats(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
u8 *peer,
struct ieee80211_link_stats *stats)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_sta *sta_priv;
struct ieee80211_tx_rate *fwrate;
struct ieee80211_sta *sta;
unsigned int *fail_avg;
u8 sta_index;
rcu_read_lock();
sta = ieee80211_find_sta(vif, peer);
if (!sta) {
wcn36xx_err("sta %pM is not found\n", peer);
rcu_read_unlock();
return -EINVAL;
}
sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
fwrate = &stats->last_tx_rate;
fail_avg = &stats->fail_avg;
sta_index = get_sta_index(vif, sta_priv);
rcu_read_unlock();
wcn36xx_smd_get_stats(wcn, sta_index,
HAL_GLOBAL_CLASS_A_STATS_INFO, fwrate);
wcn36xx_smd_get_stats(wcn, sta_index,
HAL_SUMMARY_STATS_INFO, fail_avg);
return 0;
}
#ifdef CONFIG_PM
static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
{
struct wcn36xx *wcn = hw->priv;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
flush_workqueue(wcn->hal_ind_wq);
wcn36xx_smd_set_power_params(wcn, true);
return 0;
}
static int wcn36xx_resume(struct ieee80211_hw *hw)
{
struct wcn36xx *wcn = hw->priv;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
flush_workqueue(wcn->hal_ind_wq);
wcn36xx_smd_set_power_params(wcn, false);
return 0;
}
#endif
static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 *ssn,
u8 buf_size)
{
struct wcn36xx *wcn = hw->priv;
struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);