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#include "device.h"
30#include "card.h"
31#include "baseband.h"
32#include "mac.h"
33#include "desc.h"
34#include "rf.h"
35#include "power.h"
36#include "key.h"
37#include "usbpipe.h"
38
39
40
41
42
43static const u16 cw_rxbcntsf_off[MAX_RATE] = {
44 192, 96, 34, 17, 34, 23, 17, 11, 8, 5, 4, 3
45};
46
47
48
49
50
51
52
53
54
55
56
57void vnt_set_channel(struct vnt_private *priv, u32 connection_channel)
58{
59 if (connection_channel > CB_MAX_CHANNEL || !connection_channel)
60 return;
61
62
63 vnt_mac_reg_bits_on(priv, MAC_REG_MACCR, MACCR_CLRNAV);
64
65
66 vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL, 0xb0);
67
68 vnt_control_out(priv, MESSAGE_TYPE_SELECT_CHANNEL,
69 connection_channel, 0, 0, NULL);
70
71 vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_CHANNEL,
72 (u8)(connection_channel | 0x80));
73}
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88static u16 vnt_get_cck_rate(struct vnt_private *priv, u16 rate_idx)
89{
90 u16 ui = rate_idx;
91
92 while (ui > RATE_1M) {
93 if (priv->basic_rates & (1 << ui))
94 return ui;
95 ui--;
96 }
97
98 return RATE_1M;
99}
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114static u16 vnt_get_ofdm_rate(struct vnt_private *priv, u16 rate_idx)
115{
116 u16 ui = rate_idx;
117
118 dev_dbg(&priv->usb->dev, "%s basic rate: %d\n",
119 __func__, priv->basic_rates);
120
121 if (!vnt_ofdm_min_rate(priv)) {
122 dev_dbg(&priv->usb->dev, "%s (NO OFDM) %d\n",
123 __func__, rate_idx);
124 if (rate_idx > RATE_24M)
125 rate_idx = RATE_24M;
126 return rate_idx;
127 }
128
129 while (ui > RATE_11M) {
130 if (priv->basic_rates & (1 << ui)) {
131 dev_dbg(&priv->usb->dev, "%s rate: %d\n",
132 __func__, ui);
133 return ui;
134 }
135 ui--;
136 }
137
138 dev_dbg(&priv->usb->dev, "%s basic rate: 24M\n", __func__);
139
140 return RATE_24M;
141}
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157static void vnt_calculate_ofdm_rate(u16 rate, u8 bb_type,
158 u8 *tx_rate, u8 *rsv_time)
159{
160 switch (rate) {
161 case RATE_6M:
162 if (bb_type == BB_TYPE_11A) {
163 *tx_rate = 0x9b;
164 *rsv_time = 24;
165 } else {
166 *tx_rate = 0x8b;
167 *rsv_time = 30;
168 }
169 break;
170 case RATE_9M:
171 if (bb_type == BB_TYPE_11A) {
172 *tx_rate = 0x9f;
173 *rsv_time = 16;
174 } else {
175 *tx_rate = 0x8f;
176 *rsv_time = 22;
177 }
178 break;
179 case RATE_12M:
180 if (bb_type == BB_TYPE_11A) {
181 *tx_rate = 0x9a;
182 *rsv_time = 12;
183 } else {
184 *tx_rate = 0x8a;
185 *rsv_time = 18;
186 }
187 break;
188 case RATE_18M:
189 if (bb_type == BB_TYPE_11A) {
190 *tx_rate = 0x9e;
191 *rsv_time = 8;
192 } else {
193 *tx_rate = 0x8e;
194 *rsv_time = 14;
195 }
196 break;
197 case RATE_36M:
198 if (bb_type == BB_TYPE_11A) {
199 *tx_rate = 0x9d;
200 *rsv_time = 4;
201 } else {
202 *tx_rate = 0x8d;
203 *rsv_time = 10;
204 }
205 break;
206 case RATE_48M:
207 if (bb_type == BB_TYPE_11A) {
208 *tx_rate = 0x98;
209 *rsv_time = 4;
210 } else {
211 *tx_rate = 0x88;
212 *rsv_time = 10;
213 }
214 break;
215 case RATE_54M:
216 if (bb_type == BB_TYPE_11A) {
217 *tx_rate = 0x9c;
218 *rsv_time = 4;
219 } else {
220 *tx_rate = 0x8c;
221 *rsv_time = 10;
222 }
223 break;
224 case RATE_24M:
225 default:
226 if (bb_type == BB_TYPE_11A) {
227 *tx_rate = 0x99;
228 *rsv_time = 8;
229 } else {
230 *tx_rate = 0x89;
231 *rsv_time = 14;
232 }
233 break;
234 }
235}
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250void vnt_set_rspinf(struct vnt_private *priv, u8 bb_type)
251{
252 struct vnt_phy_field phy[4];
253 u8 tx_rate[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
254 u8 rsv_time[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
255 u8 data[34];
256 int i;
257
258
259 vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_1M),
260 PK_TYPE_11B, &phy[0]);
261
262
263 vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_2M),
264 PK_TYPE_11B, &phy[1]);
265
266
267 vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_5M),
268 PK_TYPE_11B, &phy[2]);
269
270
271 vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_11M),
272 PK_TYPE_11B, &phy[3]);
273
274
275 vnt_calculate_ofdm_rate(RATE_6M, bb_type, &tx_rate[0], &rsv_time[0]);
276
277
278 vnt_calculate_ofdm_rate(RATE_9M, bb_type, &tx_rate[1], &rsv_time[1]);
279
280
281 vnt_calculate_ofdm_rate(RATE_12M, bb_type, &tx_rate[2], &rsv_time[2]);
282
283
284 vnt_calculate_ofdm_rate(RATE_18M, bb_type, &tx_rate[3], &rsv_time[3]);
285
286
287 vnt_calculate_ofdm_rate(RATE_24M, bb_type, &tx_rate[4], &rsv_time[4]);
288
289
290 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_36M),
291 bb_type, &tx_rate[5], &rsv_time[5]);
292
293
294 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_48M),
295 bb_type, &tx_rate[6], &rsv_time[6]);
296
297
298 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_54M),
299 bb_type, &tx_rate[7], &rsv_time[7]);
300
301
302 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_54M),
303 bb_type, &tx_rate[8], &rsv_time[8]);
304
305 put_unaligned(phy[0].len, (u16 *)&data[0]);
306 data[2] = phy[0].signal;
307 data[3] = phy[0].service;
308
309 put_unaligned(phy[1].len, (u16 *)&data[4]);
310 data[6] = phy[1].signal;
311 data[7] = phy[1].service;
312
313 put_unaligned(phy[2].len, (u16 *)&data[8]);
314 data[10] = phy[2].signal;
315 data[11] = phy[2].service;
316
317 put_unaligned(phy[3].len, (u16 *)&data[12]);
318 data[14] = phy[3].signal;
319 data[15] = phy[3].service;
320
321 for (i = 0; i < 9; i++) {
322 data[16 + i * 2] = tx_rate[i];
323 data[16 + i * 2 + 1] = rsv_time[i];
324 }
325
326 vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_RSPINF_B_1,
327 MESSAGE_REQUEST_MACREG, 34, &data[0]);
328}
329
330
331
332
333
334
335
336
337
338
339
340
341
342void vnt_update_ifs(struct vnt_private *priv)
343{
344 u8 max_min = 0;
345 u8 data[4];
346
347 if (priv->packet_type == PK_TYPE_11A) {
348 priv->slot = C_SLOT_SHORT;
349 priv->sifs = C_SIFS_A;
350 priv->difs = C_SIFS_A + 2 * C_SLOT_SHORT;
351 max_min = 4;
352 } else {
353 priv->sifs = C_SIFS_BG;
354
355 if (priv->short_slot_time) {
356 priv->slot = C_SLOT_SHORT;
357 max_min = 4;
358 } else {
359 priv->slot = C_SLOT_LONG;
360 max_min = 5;
361 }
362
363 priv->difs = C_SIFS_BG + 2 * priv->slot;
364 }
365
366 priv->eifs = C_EIFS;
367
368 switch (priv->rf_type) {
369 case RF_VT3226D0:
370 if (priv->bb_type != BB_TYPE_11B) {
371 priv->sifs -= 1;
372 priv->difs -= 1;
373 break;
374 }
375
376 case RF_AIROHA7230:
377 case RF_AL2230:
378 case RF_AL2230S:
379 if (priv->bb_type != BB_TYPE_11B)
380 break;
381
382 case RF_RFMD2959:
383 case RF_VT3226:
384 case RF_VT3342A0:
385 priv->sifs -= 3;
386 priv->difs -= 3;
387 break;
388 case RF_MAXIM2829:
389 if (priv->bb_type == BB_TYPE_11A) {
390 priv->sifs -= 5;
391 priv->difs -= 5;
392 } else {
393 priv->sifs -= 2;
394 priv->difs -= 2;
395 }
396
397 break;
398 }
399
400 data[0] = (u8)priv->sifs;
401 data[1] = (u8)priv->difs;
402 data[2] = (u8)priv->eifs;
403 data[3] = (u8)priv->slot;
404
405 vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_SIFS,
406 MESSAGE_REQUEST_MACREG, 4, &data[0]);
407
408 max_min |= 0xa0;
409
410 vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_CWMAXMIN0,
411 MESSAGE_REQUEST_MACREG, 1, &max_min);
412}
413
414void vnt_update_top_rates(struct vnt_private *priv)
415{
416 u8 top_ofdm = RATE_24M, top_cck = RATE_1M;
417 u8 i;
418
419
420 for (i = RATE_54M; i >= RATE_6M; i--) {
421 if (priv->basic_rates & (u16)(1 << i)) {
422 top_ofdm = i;
423 break;
424 }
425 }
426
427 priv->top_ofdm_basic_rate = top_ofdm;
428
429 for (i = RATE_11M;; i--) {
430 if (priv->basic_rates & (u16)(1 << i)) {
431 top_cck = i;
432 break;
433 }
434 if (i == RATE_1M)
435 break;
436 }
437
438 priv->top_cck_basic_rate = top_cck;
439}
440
441int vnt_ofdm_min_rate(struct vnt_private *priv)
442{
443 int ii;
444
445 for (ii = RATE_54M; ii >= RATE_6M; ii--) {
446 if ((priv->basic_rates) & ((u16)BIT(ii)))
447 return true;
448 }
449
450 return false;
451}
452
453u8 vnt_get_pkt_type(struct vnt_private *priv)
454{
455 if (priv->bb_type == BB_TYPE_11A || priv->bb_type == BB_TYPE_11B)
456 return (u8)priv->bb_type;
457 else if (vnt_ofdm_min_rate(priv))
458 return PK_TYPE_11GA;
459 return PK_TYPE_11GB;
460}
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477u64 vnt_get_tsf_offset(u8 rx_rate, u64 tsf1, u64 tsf2)
478{
479 return tsf1 - tsf2 - (u64)cw_rxbcntsf_off[rx_rate % MAX_RATE];
480}
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497void vnt_adjust_tsf(struct vnt_private *priv, u8 rx_rate,
498 u64 time_stamp, u64 local_tsf)
499{
500 u64 tsf_offset = 0;
501 u8 data[8];
502
503 tsf_offset = vnt_get_tsf_offset(rx_rate, time_stamp, local_tsf);
504
505 data[0] = (u8)tsf_offset;
506 data[1] = (u8)(tsf_offset >> 8);
507 data[2] = (u8)(tsf_offset >> 16);
508 data[3] = (u8)(tsf_offset >> 24);
509 data[4] = (u8)(tsf_offset >> 32);
510 data[5] = (u8)(tsf_offset >> 40);
511 data[6] = (u8)(tsf_offset >> 48);
512 data[7] = (u8)(tsf_offset >> 56);
513
514 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
515 MESSAGE_REQUEST_TSF, 0, 8, data);
516}
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531bool vnt_get_current_tsf(struct vnt_private *priv, u64 *current_tsf)
532{
533 *current_tsf = priv->current_tsf;
534
535 return true;
536}
537
538
539
540
541
542
543
544
545
546
547
548
549bool vnt_clear_current_tsf(struct vnt_private *priv)
550{
551 vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
552
553 priv->current_tsf = 0;
554
555 return true;
556}
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572u64 vnt_get_next_tbtt(u64 tsf, u16 beacon_interval)
573{
574 u32 beacon_int;
575
576 beacon_int = beacon_interval * 1024;
577
578
579
580
581 if (beacon_int) {
582 do_div(tsf, beacon_int);
583 tsf += 1;
584 tsf *= beacon_int;
585 }
586
587 return tsf;
588}
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604void vnt_reset_next_tbtt(struct vnt_private *priv, u16 beacon_interval)
605{
606 u64 next_tbtt = 0;
607 u8 data[8];
608
609 vnt_clear_current_tsf(priv);
610
611 next_tbtt = vnt_get_next_tbtt(next_tbtt, beacon_interval);
612
613 data[0] = (u8)next_tbtt;
614 data[1] = (u8)(next_tbtt >> 8);
615 data[2] = (u8)(next_tbtt >> 16);
616 data[3] = (u8)(next_tbtt >> 24);
617 data[4] = (u8)(next_tbtt >> 32);
618 data[5] = (u8)(next_tbtt >> 40);
619 data[6] = (u8)(next_tbtt >> 48);
620 data[7] = (u8)(next_tbtt >> 56);
621
622 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
623 MESSAGE_REQUEST_TBTT, 0, 8, data);
624}
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641void vnt_update_next_tbtt(struct vnt_private *priv, u64 tsf,
642 u16 beacon_interval)
643{
644 u8 data[8];
645
646 tsf = vnt_get_next_tbtt(tsf, beacon_interval);
647
648 data[0] = (u8)tsf;
649 data[1] = (u8)(tsf >> 8);
650 data[2] = (u8)(tsf >> 16);
651 data[3] = (u8)(tsf >> 24);
652 data[4] = (u8)(tsf >> 32);
653 data[5] = (u8)(tsf >> 40);
654 data[6] = (u8)(tsf >> 48);
655 data[7] = (u8)(tsf >> 56);
656
657 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
658 MESSAGE_REQUEST_TBTT, 0, 8, data);
659
660 dev_dbg(&priv->usb->dev, "%s TBTT: %8llx\n", __func__, tsf);
661}
662
663
664
665
666
667
668
669
670
671
672
673
674
675int vnt_radio_power_off(struct vnt_private *priv)
676{
677 int ret = true;
678
679 switch (priv->rf_type) {
680 case RF_AL2230:
681 case RF_AL2230S:
682 case RF_AIROHA7230:
683 case RF_VT3226:
684 case RF_VT3226D0:
685 case RF_VT3342A0:
686 vnt_mac_reg_bits_off(priv, MAC_REG_SOFTPWRCTL,
687 (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
688 break;
689 }
690
691 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
692
693 vnt_set_deep_sleep(priv);
694
695 vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD);
696
697 return ret;
698}
699
700
701
702
703
704
705
706
707
708
709
710
711
712int vnt_radio_power_on(struct vnt_private *priv)
713{
714 int ret = true;
715
716 vnt_exit_deep_sleep(priv);
717
718 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
719
720 switch (priv->rf_type) {
721 case RF_AL2230:
722 case RF_AL2230S:
723 case RF_AIROHA7230:
724 case RF_VT3226:
725 case RF_VT3226D0:
726 case RF_VT3342A0:
727 vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
728 (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
729 break;
730 }
731
732 vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD);
733
734 return ret;
735}
736
737void vnt_set_bss_mode(struct vnt_private *priv)
738{
739 if (priv->rf_type == RF_AIROHA7230 && priv->bb_type == BB_TYPE_11A)
740 vnt_mac_set_bb_type(priv, BB_TYPE_11G);
741 else
742 vnt_mac_set_bb_type(priv, priv->bb_type);
743
744 priv->packet_type = vnt_get_pkt_type(priv);
745
746 if (priv->bb_type == BB_TYPE_11A)
747 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x03);
748 else if (priv->bb_type == BB_TYPE_11B)
749 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x02);
750 else if (priv->bb_type == BB_TYPE_11G)
751 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x08);
752
753 vnt_update_ifs(priv);
754 vnt_set_rspinf(priv, (u8)priv->bb_type);
755
756 if (priv->bb_type == BB_TYPE_11A) {
757 if (priv->rf_type == RF_AIROHA7230) {
758 priv->bb_vga[0] = 0x20;
759
760 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG,
761 0xe7, priv->bb_vga[0]);
762 }
763
764 priv->bb_vga[2] = 0x10;
765 priv->bb_vga[3] = 0x10;
766 } else {
767 if (priv->rf_type == RF_AIROHA7230) {
768 priv->bb_vga[0] = 0x1c;
769
770 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG,
771 0xe7, priv->bb_vga[0]);
772 }
773
774 priv->bb_vga[2] = 0x0;
775 priv->bb_vga[3] = 0x0;
776 }
777
778 vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
779}
780