1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
4 * All rights reserved.
5 *
6 * File: card.c
7 * Purpose: Provide functions to setup NIC operation mode
8 * Functions:
9 * s_vSafeResetTx - Rest Tx
10 * CARDvSetRSPINF - Set RSPINF
11 * CARDvUpdateBasicTopRate - Update BasicTopRate
12 * CARDbAddBasicRate - Add to BasicRateSet
13 * CARDbIsOFDMinBasicRate - Check if any OFDM rate is in BasicRateSet
14 * CARDvSetLoopbackMode - Set Loopback mode
15 * CARDbSoftwareReset - Sortware reset NIC
16 * CARDqGetTSFOffset - Calculate TSFOffset
17 * CARDbGetCurrentTSF - Read Current NIC TSF counter
18 * CARDqGetNextTBTT - Calculate Next Beacon TSF counter
19 * CARDvSetFirstNextTBTT - Set NIC Beacon time
20 * CARDvUpdateNextTBTT - Sync. NIC Beacon time
21 * CARDbRadioPowerOff - Turn Off NIC Radio Power
22 * CARDbRadioPowerOn - Turn On NIC Radio Power
23 *
24 * Revision History:
25 * 06-10-2003 Bryan YC Fan: Re-write codes to support VT3253 spec.
26 * 08-26-2003 Kyle Hsu: Modify the defination type of iobase.
27 * 09-01-2003 Bryan YC Fan: Add vUpdateIFS().
28 *
29 */
30
31 #include "tmacro.h"
32 #include "card.h"
33 #include "baseband.h"
34 #include "mac.h"
35 #include "desc.h"
36 #include "rf.h"
37 #include "power.h"
38
39 /*--------------------- Static Definitions -------------------------*/
40
41 #define C_SIFS_A 16 /* micro sec. */
42 #define C_SIFS_BG 10
43
44 #define C_EIFS 80 /* micro sec. */
45
46 #define C_SLOT_SHORT 9 /* micro sec. */
47 #define C_SLOT_LONG 20
48
49 #define C_CWMIN_A 15 /* slot time */
50 #define C_CWMIN_B 31
51
52 #define C_CWMAX 1023 /* slot time */
53
54 #define WAIT_BEACON_TX_DOWN_TMO 3 /* Times */
55
56 /*--------------------- Static Variables --------------------------*/
57
58 static const unsigned short cwRXBCNTSFOff[MAX_RATE] = {
59 17, 17, 17, 17, 34, 23, 17, 11, 8, 5, 4, 3};
60
61 /*--------------------- Static Functions --------------------------*/
62
63 static
64 void
65 s_vCalculateOFDMRParameter(
66 unsigned char byRate,
67 u8 bb_type,
68 unsigned char *pbyTxRate,
69 unsigned char *pbyRsvTime
70 );
71
72 /*--------------------- Export Functions --------------------------*/
73
74 /*
75 * Description: Calculate TxRate and RsvTime fields for RSPINF in OFDM mode.
76 *
77 * Parameters:
78 * In:
79 * wRate - Tx Rate
80 * byPktType - Tx Packet type
81 * Out:
82 * pbyTxRate - pointer to RSPINF TxRate field
83 * pbyRsvTime - pointer to RSPINF RsvTime field
84 *
85 * Return Value: none
86 */
87 static
88 void
s_vCalculateOFDMRParameter(unsigned char byRate,u8 bb_type,unsigned char * pbyTxRate,unsigned char * pbyRsvTime)89 s_vCalculateOFDMRParameter(
90 unsigned char byRate,
91 u8 bb_type,
92 unsigned char *pbyTxRate,
93 unsigned char *pbyRsvTime
94 )
95 {
96 switch (byRate) {
97 case RATE_6M:
98 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
99 *pbyTxRate = 0x9B;
100 *pbyRsvTime = 44;
101 } else {
102 *pbyTxRate = 0x8B;
103 *pbyRsvTime = 50;
104 }
105 break;
106
107 case RATE_9M:
108 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
109 *pbyTxRate = 0x9F;
110 *pbyRsvTime = 36;
111 } else {
112 *pbyTxRate = 0x8F;
113 *pbyRsvTime = 42;
114 }
115 break;
116
117 case RATE_12M:
118 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
119 *pbyTxRate = 0x9A;
120 *pbyRsvTime = 32;
121 } else {
122 *pbyTxRate = 0x8A;
123 *pbyRsvTime = 38;
124 }
125 break;
126
127 case RATE_18M:
128 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
129 *pbyTxRate = 0x9E;
130 *pbyRsvTime = 28;
131 } else {
132 *pbyTxRate = 0x8E;
133 *pbyRsvTime = 34;
134 }
135 break;
136
137 case RATE_36M:
138 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
139 *pbyTxRate = 0x9D;
140 *pbyRsvTime = 24;
141 } else {
142 *pbyTxRate = 0x8D;
143 *pbyRsvTime = 30;
144 }
145 break;
146
147 case RATE_48M:
148 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
149 *pbyTxRate = 0x98;
150 *pbyRsvTime = 24;
151 } else {
152 *pbyTxRate = 0x88;
153 *pbyRsvTime = 30;
154 }
155 break;
156
157 case RATE_54M:
158 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
159 *pbyTxRate = 0x9C;
160 *pbyRsvTime = 24;
161 } else {
162 *pbyTxRate = 0x8C;
163 *pbyRsvTime = 30;
164 }
165 break;
166
167 case RATE_24M:
168 default:
169 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
170 *pbyTxRate = 0x99;
171 *pbyRsvTime = 28;
172 } else {
173 *pbyTxRate = 0x89;
174 *pbyRsvTime = 34;
175 }
176 break;
177 }
178 }
179
180 /*--------------------- Export Functions --------------------------*/
181
182 /*
183 * Description: Update IFS
184 *
185 * Parameters:
186 * In:
187 * priv - The adapter to be set
188 * Out:
189 * none
190 *
191 * Return Value: None.
192 */
CARDbSetPhyParameter(struct vnt_private * priv,u8 bb_type)193 bool CARDbSetPhyParameter(struct vnt_private *priv, u8 bb_type)
194 {
195 unsigned char byCWMaxMin = 0;
196 unsigned char bySlot = 0;
197 unsigned char bySIFS = 0;
198 unsigned char byDIFS = 0;
199 unsigned char byData;
200 int i;
201
202 /* Set SIFS, DIFS, EIFS, SlotTime, CwMin */
203 if (bb_type == BB_TYPE_11A) {
204 if (priv->byRFType == RF_AIROHA7230) {
205 /* AL7230 use single PAPE and connect to PAPE_2.4G */
206 MACvSetBBType(priv->PortOffset, BB_TYPE_11G);
207 priv->abyBBVGA[0] = 0x20;
208 priv->abyBBVGA[2] = 0x10;
209 priv->abyBBVGA[3] = 0x10;
210 BBbReadEmbedded(priv, 0xE7, &byData);
211 if (byData == 0x1C)
212 BBbWriteEmbedded(priv, 0xE7, priv->abyBBVGA[0]);
213
214 } else if (priv->byRFType == RF_UW2452) {
215 MACvSetBBType(priv->PortOffset, BB_TYPE_11A);
216 priv->abyBBVGA[0] = 0x18;
217 BBbReadEmbedded(priv, 0xE7, &byData);
218 if (byData == 0x14) {
219 BBbWriteEmbedded(priv, 0xE7, priv->abyBBVGA[0]);
220 BBbWriteEmbedded(priv, 0xE1, 0x57);
221 }
222 } else {
223 MACvSetBBType(priv->PortOffset, BB_TYPE_11A);
224 }
225 BBbWriteEmbedded(priv, 0x88, 0x03);
226 bySlot = C_SLOT_SHORT;
227 bySIFS = C_SIFS_A;
228 byDIFS = C_SIFS_A + 2 * C_SLOT_SHORT;
229 byCWMaxMin = 0xA4;
230 } else if (bb_type == BB_TYPE_11B) {
231 MACvSetBBType(priv->PortOffset, BB_TYPE_11B);
232 if (priv->byRFType == RF_AIROHA7230) {
233 priv->abyBBVGA[0] = 0x1C;
234 priv->abyBBVGA[2] = 0x00;
235 priv->abyBBVGA[3] = 0x00;
236 BBbReadEmbedded(priv, 0xE7, &byData);
237 if (byData == 0x20)
238 BBbWriteEmbedded(priv, 0xE7, priv->abyBBVGA[0]);
239
240 } else if (priv->byRFType == RF_UW2452) {
241 priv->abyBBVGA[0] = 0x14;
242 BBbReadEmbedded(priv, 0xE7, &byData);
243 if (byData == 0x18) {
244 BBbWriteEmbedded(priv, 0xE7, priv->abyBBVGA[0]);
245 BBbWriteEmbedded(priv, 0xE1, 0xD3);
246 }
247 }
248 BBbWriteEmbedded(priv, 0x88, 0x02);
249 bySlot = C_SLOT_LONG;
250 bySIFS = C_SIFS_BG;
251 byDIFS = C_SIFS_BG + 2 * C_SLOT_LONG;
252 byCWMaxMin = 0xA5;
253 } else { /* PK_TYPE_11GA & PK_TYPE_11GB */
254 MACvSetBBType(priv->PortOffset, BB_TYPE_11G);
255 if (priv->byRFType == RF_AIROHA7230) {
256 priv->abyBBVGA[0] = 0x1C;
257 priv->abyBBVGA[2] = 0x00;
258 priv->abyBBVGA[3] = 0x00;
259 BBbReadEmbedded(priv, 0xE7, &byData);
260 if (byData == 0x20)
261 BBbWriteEmbedded(priv, 0xE7, priv->abyBBVGA[0]);
262
263 } else if (priv->byRFType == RF_UW2452) {
264 priv->abyBBVGA[0] = 0x14;
265 BBbReadEmbedded(priv, 0xE7, &byData);
266 if (byData == 0x18) {
267 BBbWriteEmbedded(priv, 0xE7, priv->abyBBVGA[0]);
268 BBbWriteEmbedded(priv, 0xE1, 0xD3);
269 }
270 }
271 BBbWriteEmbedded(priv, 0x88, 0x08);
272 bySIFS = C_SIFS_BG;
273
274 if (priv->bShortSlotTime) {
275 bySlot = C_SLOT_SHORT;
276 byDIFS = C_SIFS_BG + 2 * C_SLOT_SHORT;
277 } else {
278 bySlot = C_SLOT_LONG;
279 byDIFS = C_SIFS_BG + 2 * C_SLOT_LONG;
280 }
281
282 byCWMaxMin = 0xa4;
283
284 for (i = RATE_54M; i >= RATE_6M; i--) {
285 if (priv->basic_rates & ((u32)(0x1 << i))) {
286 byCWMaxMin |= 0x1;
287 break;
288 }
289 }
290 }
291
292 if (priv->byRFType == RF_RFMD2959) {
293 /*
294 * bcs TX_PE will reserve 3 us hardware's processing
295 * time here is 2 us.
296 */
297 bySIFS -= 3;
298 byDIFS -= 3;
299 /*
300 * TX_PE will reserve 3 us for MAX2829 A mode only, it is for
301 * better TX throughput; MAC will need 2 us to process, so the
302 * SIFS, DIFS can be shorter by 2 us.
303 */
304 }
305
306 if (priv->bySIFS != bySIFS) {
307 priv->bySIFS = bySIFS;
308 VNSvOutPortB(priv->PortOffset + MAC_REG_SIFS, priv->bySIFS);
309 }
310 if (priv->byDIFS != byDIFS) {
311 priv->byDIFS = byDIFS;
312 VNSvOutPortB(priv->PortOffset + MAC_REG_DIFS, priv->byDIFS);
313 }
314 if (priv->byEIFS != C_EIFS) {
315 priv->byEIFS = C_EIFS;
316 VNSvOutPortB(priv->PortOffset + MAC_REG_EIFS, priv->byEIFS);
317 }
318 if (priv->bySlot != bySlot) {
319 priv->bySlot = bySlot;
320 VNSvOutPortB(priv->PortOffset + MAC_REG_SLOT, priv->bySlot);
321
322 BBvSetShortSlotTime(priv);
323 }
324 if (priv->byCWMaxMin != byCWMaxMin) {
325 priv->byCWMaxMin = byCWMaxMin;
326 VNSvOutPortB(priv->PortOffset + MAC_REG_CWMAXMIN0,
327 priv->byCWMaxMin);
328 }
329
330 priv->byPacketType = CARDbyGetPktType(priv);
331
332 CARDvSetRSPINF(priv, bb_type);
333
334 return true;
335 }
336
337 /*
338 * Description: Sync. TSF counter to BSS
339 * Get TSF offset and write to HW
340 *
341 * Parameters:
342 * In:
343 * priv - The adapter to be sync.
344 * byRxRate - data rate of receive beacon
345 * qwBSSTimestamp - Rx BCN's TSF
346 * qwLocalTSF - Local TSF
347 * Out:
348 * none
349 *
350 * Return Value: none
351 */
CARDbUpdateTSF(struct vnt_private * priv,unsigned char byRxRate,u64 qwBSSTimestamp)352 bool CARDbUpdateTSF(struct vnt_private *priv, unsigned char byRxRate,
353 u64 qwBSSTimestamp)
354 {
355 u64 local_tsf;
356 u64 qwTSFOffset = 0;
357
358 CARDbGetCurrentTSF(priv, &local_tsf);
359
360 if (qwBSSTimestamp != local_tsf) {
361 qwTSFOffset = CARDqGetTSFOffset(byRxRate, qwBSSTimestamp,
362 local_tsf);
363 /* adjust TSF, HW's TSF add TSF Offset reg */
364 VNSvOutPortD(priv->PortOffset + MAC_REG_TSFOFST,
365 (u32)qwTSFOffset);
366 VNSvOutPortD(priv->PortOffset + MAC_REG_TSFOFST + 4,
367 (u32)(qwTSFOffset >> 32));
368 MACvRegBitsOn(priv->PortOffset, MAC_REG_TFTCTL,
369 TFTCTL_TSFSYNCEN);
370 }
371 return true;
372 }
373
374 /*
375 * Description: Set NIC TSF counter for first Beacon time
376 * Get NEXTTBTT from adjusted TSF and Beacon Interval
377 *
378 * Parameters:
379 * In:
380 * priv - The adapter to be set.
381 * wBeaconInterval - Beacon Interval
382 * Out:
383 * none
384 *
385 * Return Value: true if succeed; otherwise false
386 */
CARDbSetBeaconPeriod(struct vnt_private * priv,unsigned short wBeaconInterval)387 bool CARDbSetBeaconPeriod(struct vnt_private *priv,
388 unsigned short wBeaconInterval)
389 {
390 u64 qwNextTBTT = 0;
391
392 CARDbGetCurrentTSF(priv, &qwNextTBTT); /* Get Local TSF counter */
393
394 qwNextTBTT = CARDqGetNextTBTT(qwNextTBTT, wBeaconInterval);
395
396 /* set HW beacon interval */
397 VNSvOutPortW(priv->PortOffset + MAC_REG_BI, wBeaconInterval);
398 priv->wBeaconInterval = wBeaconInterval;
399 /* Set NextTBTT */
400 VNSvOutPortD(priv->PortOffset + MAC_REG_NEXTTBTT, (u32)qwNextTBTT);
401 VNSvOutPortD(priv->PortOffset + MAC_REG_NEXTTBTT + 4,
402 (u32)(qwNextTBTT >> 32));
403 MACvRegBitsOn(priv->PortOffset, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
404
405 return true;
406 }
407
408 /*
409 * Description: Turn off Radio power
410 *
411 * Parameters:
412 * In:
413 * priv - The adapter to be turned off
414 * Out:
415 * none
416 *
417 * Return Value: true if success; otherwise false
418 */
CARDbRadioPowerOff(struct vnt_private * priv)419 bool CARDbRadioPowerOff(struct vnt_private *priv)
420 {
421 bool bResult = true;
422
423 if (priv->bRadioOff)
424 return true;
425
426 switch (priv->byRFType) {
427 case RF_RFMD2959:
428 MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL,
429 SOFTPWRCTL_TXPEINV);
430 MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL,
431 SOFTPWRCTL_SWPE1);
432 break;
433
434 case RF_AIROHA:
435 case RF_AL2230S:
436 case RF_AIROHA7230:
437 MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL,
438 SOFTPWRCTL_SWPE2);
439 MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL,
440 SOFTPWRCTL_SWPE3);
441 break;
442 }
443
444 MACvRegBitsOff(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_RXON);
445
446 BBvSetDeepSleep(priv, priv->byLocalID);
447
448 priv->bRadioOff = true;
449 pr_debug("chester power off\n");
450 MACvRegBitsOn(priv->PortOffset, MAC_REG_GPIOCTL0,
451 LED_ACTSET); /* LED issue */
452 return bResult;
453 }
454
455 /*
456 * Description: Turn on Radio power
457 *
458 * Parameters:
459 * In:
460 * priv - The adapter to be turned on
461 * Out:
462 * none
463 *
464 * Return Value: true if success; otherwise false
465 */
CARDbRadioPowerOn(struct vnt_private * priv)466 bool CARDbRadioPowerOn(struct vnt_private *priv)
467 {
468 bool bResult = true;
469
470 pr_debug("chester power on\n");
471 if (priv->bRadioControlOff) {
472 if (priv->bHWRadioOff)
473 pr_debug("chester bHWRadioOff\n");
474 if (priv->bRadioControlOff)
475 pr_debug("chester bRadioControlOff\n");
476 return false; }
477
478 if (!priv->bRadioOff) {
479 pr_debug("chester pbRadioOff\n");
480 return true; }
481
482 BBvExitDeepSleep(priv, priv->byLocalID);
483
484 MACvRegBitsOn(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_RXON);
485
486 switch (priv->byRFType) {
487 case RF_RFMD2959:
488 MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL,
489 SOFTPWRCTL_TXPEINV);
490 MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL,
491 SOFTPWRCTL_SWPE1);
492 break;
493
494 case RF_AIROHA:
495 case RF_AL2230S:
496 case RF_AIROHA7230:
497 MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL,
498 (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
499 break;
500 }
501
502 priv->bRadioOff = false;
503 pr_debug("chester power on\n");
504 MACvRegBitsOff(priv->PortOffset, MAC_REG_GPIOCTL0,
505 LED_ACTSET); /* LED issue */
506 return bResult;
507 }
508
509 void
CARDvSafeResetTx(struct vnt_private * priv)510 CARDvSafeResetTx(
511 struct vnt_private *priv
512 )
513 {
514 unsigned int uu;
515 struct vnt_tx_desc *pCurrTD;
516
517 /* initialize TD index */
518 priv->apTailTD[0] = &priv->apTD0Rings[0];
519 priv->apCurrTD[0] = &priv->apTD0Rings[0];
520
521 priv->apTailTD[1] = &priv->apTD1Rings[0];
522 priv->apCurrTD[1] = &priv->apTD1Rings[0];
523
524 for (uu = 0; uu < TYPE_MAXTD; uu++)
525 priv->iTDUsed[uu] = 0;
526
527 for (uu = 0; uu < priv->opts.tx_descs[0]; uu++) {
528 pCurrTD = &priv->apTD0Rings[uu];
529 pCurrTD->td0.owner = OWNED_BY_HOST;
530 /* init all Tx Packet pointer to NULL */
531 }
532 for (uu = 0; uu < priv->opts.tx_descs[1]; uu++) {
533 pCurrTD = &priv->apTD1Rings[uu];
534 pCurrTD->td0.owner = OWNED_BY_HOST;
535 /* init all Tx Packet pointer to NULL */
536 }
537
538 /* set MAC TD pointer */
539 MACvSetCurrTXDescAddr(TYPE_TXDMA0, priv, priv->td0_pool_dma);
540
541 MACvSetCurrTXDescAddr(TYPE_AC0DMA, priv, priv->td1_pool_dma);
542
543 /* set MAC Beacon TX pointer */
544 MACvSetCurrBCNTxDescAddr(priv->PortOffset,
545 (priv->tx_beacon_dma));
546 }
547
548 /*
549 * Description:
550 * Reset Rx
551 *
552 * Parameters:
553 * In:
554 * priv - Pointer to the adapter
555 * Out:
556 * none
557 *
558 * Return Value: none
559 */
CARDvSafeResetRx(struct vnt_private * priv)560 void CARDvSafeResetRx(struct vnt_private *priv)
561 {
562 unsigned int uu;
563 struct vnt_rx_desc *pDesc;
564
565 /* initialize RD index */
566 priv->pCurrRD[0] = &priv->aRD0Ring[0];
567 priv->pCurrRD[1] = &priv->aRD1Ring[0];
568
569 /* init state, all RD is chip's */
570 for (uu = 0; uu < priv->opts.rx_descs0; uu++) {
571 pDesc = &priv->aRD0Ring[uu];
572 pDesc->rd0.res_count = cpu_to_le16(priv->rx_buf_sz);
573 pDesc->rd0.owner = OWNED_BY_NIC;
574 pDesc->rd1.req_count = cpu_to_le16(priv->rx_buf_sz);
575 }
576
577 /* init state, all RD is chip's */
578 for (uu = 0; uu < priv->opts.rx_descs1; uu++) {
579 pDesc = &priv->aRD1Ring[uu];
580 pDesc->rd0.res_count = cpu_to_le16(priv->rx_buf_sz);
581 pDesc->rd0.owner = OWNED_BY_NIC;
582 pDesc->rd1.req_count = cpu_to_le16(priv->rx_buf_sz);
583 }
584
585 /* set perPkt mode */
586 MACvRx0PerPktMode(priv->PortOffset);
587 MACvRx1PerPktMode(priv->PortOffset);
588 /* set MAC RD pointer */
589 MACvSetCurrRx0DescAddr(priv, priv->rd0_pool_dma);
590
591 MACvSetCurrRx1DescAddr(priv, priv->rd1_pool_dma);
592 }
593
594 /*
595 * Description: Get response Control frame rate in CCK mode
596 *
597 * Parameters:
598 * In:
599 * priv - The adapter to be set
600 * wRateIdx - Receiving data rate
601 * Out:
602 * none
603 *
604 * Return Value: response Control frame rate
605 */
CARDwGetCCKControlRate(struct vnt_private * priv,unsigned short wRateIdx)606 static unsigned short CARDwGetCCKControlRate(struct vnt_private *priv,
607 unsigned short wRateIdx)
608 {
609 unsigned int ui = (unsigned int)wRateIdx;
610
611 while (ui > RATE_1M) {
612 if (priv->basic_rates & ((u32)0x1 << ui))
613 return (unsigned short)ui;
614
615 ui--;
616 }
617 return (unsigned short)RATE_1M;
618 }
619
620 /*
621 * Description: Get response Control frame rate in OFDM mode
622 *
623 * Parameters:
624 * In:
625 * priv - The adapter to be set
626 * wRateIdx - Receiving data rate
627 * Out:
628 * none
629 *
630 * Return Value: response Control frame rate
631 */
CARDwGetOFDMControlRate(struct vnt_private * priv,unsigned short wRateIdx)632 static unsigned short CARDwGetOFDMControlRate(struct vnt_private *priv,
633 unsigned short wRateIdx)
634 {
635 unsigned int ui = (unsigned int)wRateIdx;
636
637 pr_debug("BASIC RATE: %X\n", priv->basic_rates);
638
639 if (!CARDbIsOFDMinBasicRate((void *)priv)) {
640 pr_debug("%s:(NO OFDM) %d\n", __func__, wRateIdx);
641 if (wRateIdx > RATE_24M)
642 wRateIdx = RATE_24M;
643 return wRateIdx;
644 }
645 while (ui > RATE_11M) {
646 if (priv->basic_rates & ((u32)0x1 << ui)) {
647 pr_debug("%s : %d\n", __func__, ui);
648 return (unsigned short)ui;
649 }
650 ui--;
651 }
652 pr_debug("%s: 6M\n", __func__);
653 return (unsigned short)RATE_24M;
654 }
655
656 /*
657 * Description: Set RSPINF
658 *
659 * Parameters:
660 * In:
661 * priv - The adapter to be set
662 * Out:
663 * none
664 *
665 * Return Value: None.
666 */
CARDvSetRSPINF(struct vnt_private * priv,u8 bb_type)667 void CARDvSetRSPINF(struct vnt_private *priv, u8 bb_type)
668 {
669 union vnt_phy_field_swap phy;
670 unsigned char byTxRate, byRsvTime; /* For OFDM */
671 unsigned long flags;
672
673 spin_lock_irqsave(&priv->lock, flags);
674
675 /* Set to Page1 */
676 MACvSelectPage1(priv->PortOffset);
677
678 /* RSPINF_b_1 */
679 vnt_get_phy_field(priv, 14,
680 CARDwGetCCKControlRate(priv, RATE_1M),
681 PK_TYPE_11B, &phy.field_read);
682
683 /* swap over to get correct write order */
684 swap(phy.swap[0], phy.swap[1]);
685
686 VNSvOutPortD(priv->PortOffset + MAC_REG_RSPINF_B_1, phy.field_write);
687
688 /* RSPINF_b_2 */
689 vnt_get_phy_field(priv, 14,
690 CARDwGetCCKControlRate(priv, RATE_2M),
691 PK_TYPE_11B, &phy.field_read);
692
693 swap(phy.swap[0], phy.swap[1]);
694
695 VNSvOutPortD(priv->PortOffset + MAC_REG_RSPINF_B_2, phy.field_write);
696
697 /* RSPINF_b_5 */
698 vnt_get_phy_field(priv, 14,
699 CARDwGetCCKControlRate(priv, RATE_5M),
700 PK_TYPE_11B, &phy.field_read);
701
702 swap(phy.swap[0], phy.swap[1]);
703
704 VNSvOutPortD(priv->PortOffset + MAC_REG_RSPINF_B_5, phy.field_write);
705
706 /* RSPINF_b_11 */
707 vnt_get_phy_field(priv, 14,
708 CARDwGetCCKControlRate(priv, RATE_11M),
709 PK_TYPE_11B, &phy.field_read);
710
711 swap(phy.swap[0], phy.swap[1]);
712
713 VNSvOutPortD(priv->PortOffset + MAC_REG_RSPINF_B_11, phy.field_write);
714
715 /* RSPINF_a_6 */
716 s_vCalculateOFDMRParameter(RATE_6M,
717 bb_type,
718 &byTxRate,
719 &byRsvTime);
720 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_6,
721 MAKEWORD(byTxRate, byRsvTime));
722 /* RSPINF_a_9 */
723 s_vCalculateOFDMRParameter(RATE_9M,
724 bb_type,
725 &byTxRate,
726 &byRsvTime);
727 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_9,
728 MAKEWORD(byTxRate, byRsvTime));
729 /* RSPINF_a_12 */
730 s_vCalculateOFDMRParameter(RATE_12M,
731 bb_type,
732 &byTxRate,
733 &byRsvTime);
734 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_12,
735 MAKEWORD(byTxRate, byRsvTime));
736 /* RSPINF_a_18 */
737 s_vCalculateOFDMRParameter(RATE_18M,
738 bb_type,
739 &byTxRate,
740 &byRsvTime);
741 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_18,
742 MAKEWORD(byTxRate, byRsvTime));
743 /* RSPINF_a_24 */
744 s_vCalculateOFDMRParameter(RATE_24M,
745 bb_type,
746 &byTxRate,
747 &byRsvTime);
748 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_24,
749 MAKEWORD(byTxRate, byRsvTime));
750 /* RSPINF_a_36 */
751 s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate(
752 (void *)priv,
753 RATE_36M),
754 bb_type,
755 &byTxRate,
756 &byRsvTime);
757 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_36,
758 MAKEWORD(byTxRate, byRsvTime));
759 /* RSPINF_a_48 */
760 s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate(
761 (void *)priv,
762 RATE_48M),
763 bb_type,
764 &byTxRate,
765 &byRsvTime);
766 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_48,
767 MAKEWORD(byTxRate, byRsvTime));
768 /* RSPINF_a_54 */
769 s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate(
770 (void *)priv,
771 RATE_54M),
772 bb_type,
773 &byTxRate,
774 &byRsvTime);
775 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_54,
776 MAKEWORD(byTxRate, byRsvTime));
777 /* RSPINF_a_72 */
778 s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate(
779 (void *)priv,
780 RATE_54M),
781 bb_type,
782 &byTxRate,
783 &byRsvTime);
784 VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_72,
785 MAKEWORD(byTxRate, byRsvTime));
786 /* Set to Page0 */
787 MACvSelectPage0(priv->PortOffset);
788
789 spin_unlock_irqrestore(&priv->lock, flags);
790 }
791
CARDvUpdateBasicTopRate(struct vnt_private * priv)792 void CARDvUpdateBasicTopRate(struct vnt_private *priv)
793 {
794 unsigned char byTopOFDM = RATE_24M, byTopCCK = RATE_1M;
795 unsigned char ii;
796
797 /* Determines the highest basic rate. */
798 for (ii = RATE_54M; ii >= RATE_6M; ii--) {
799 if ((priv->basic_rates) & ((u32)(1 << ii))) {
800 byTopOFDM = ii;
801 break;
802 }
803 }
804 priv->byTopOFDMBasicRate = byTopOFDM;
805
806 for (ii = RATE_11M;; ii--) {
807 if ((priv->basic_rates) & ((u32)(1 << ii))) {
808 byTopCCK = ii;
809 break;
810 }
811 if (ii == RATE_1M)
812 break;
813 }
814 priv->byTopCCKBasicRate = byTopCCK;
815 }
816
CARDbIsOFDMinBasicRate(struct vnt_private * priv)817 bool CARDbIsOFDMinBasicRate(struct vnt_private *priv)
818 {
819 int ii;
820
821 for (ii = RATE_54M; ii >= RATE_6M; ii--) {
822 if ((priv->basic_rates) & ((u32)BIT(ii)))
823 return true;
824 }
825 return false;
826 }
827
CARDbyGetPktType(struct vnt_private * priv)828 unsigned char CARDbyGetPktType(struct vnt_private *priv)
829 {
830 if (priv->byBBType == BB_TYPE_11A || priv->byBBType == BB_TYPE_11B)
831 return (unsigned char)priv->byBBType;
832 else if (CARDbIsOFDMinBasicRate((void *)priv))
833 return PK_TYPE_11GA;
834 else
835 return PK_TYPE_11GB;
836 }
837
838 /*
839 * Description: Set NIC Loopback mode
840 *
841 * Parameters:
842 * In:
843 * priv - The adapter to be set
844 * wLoopbackMode - Loopback mode to be set
845 * Out:
846 * none
847 *
848 * Return Value: none
849 */
CARDvSetLoopbackMode(struct vnt_private * priv,unsigned short wLoopbackMode)850 void CARDvSetLoopbackMode(struct vnt_private *priv,
851 unsigned short wLoopbackMode)
852 {
853 switch (wLoopbackMode) {
854 case CARD_LB_NONE:
855 case CARD_LB_MAC:
856 case CARD_LB_PHY:
857 break;
858 default:
859 break;
860 }
861 /* set MAC loopback */
862 MACvSetLoopbackMode(priv, LOBYTE(wLoopbackMode));
863 /* set Baseband loopback */
864 }
865
866 /*
867 * Description: Software Reset NIC
868 *
869 * Parameters:
870 * In:
871 * priv - The adapter to be reset
872 * Out:
873 * none
874 *
875 * Return Value: none
876 */
CARDbSoftwareReset(struct vnt_private * priv)877 bool CARDbSoftwareReset(struct vnt_private *priv)
878 {
879 /* reset MAC */
880 if (!MACbSafeSoftwareReset(priv))
881 return false;
882
883 return true;
884 }
885
886 /*
887 * Description: Calculate TSF offset of two TSF input
888 * Get TSF Offset from RxBCN's TSF and local TSF
889 *
890 * Parameters:
891 * In:
892 * priv - The adapter to be sync.
893 * qwTSF1 - Rx BCN's TSF
894 * qwTSF2 - Local TSF
895 * Out:
896 * none
897 *
898 * Return Value: TSF Offset value
899 */
CARDqGetTSFOffset(unsigned char byRxRate,u64 qwTSF1,u64 qwTSF2)900 u64 CARDqGetTSFOffset(unsigned char byRxRate, u64 qwTSF1, u64 qwTSF2)
901 {
902 unsigned short wRxBcnTSFOffst;
903
904 wRxBcnTSFOffst = cwRXBCNTSFOff[byRxRate % MAX_RATE];
905
906 qwTSF2 += (u64)wRxBcnTSFOffst;
907
908 return qwTSF1 - qwTSF2;
909 }
910
911 /*
912 * Description: Read NIC TSF counter
913 * Get local TSF counter
914 *
915 * Parameters:
916 * In:
917 * priv - The adapter to be read
918 * Out:
919 * qwCurrTSF - Current TSF counter
920 *
921 * Return Value: true if success; otherwise false
922 */
CARDbGetCurrentTSF(struct vnt_private * priv,u64 * pqwCurrTSF)923 bool CARDbGetCurrentTSF(struct vnt_private *priv, u64 *pqwCurrTSF)
924 {
925 void __iomem *iobase = priv->PortOffset;
926 unsigned short ww;
927 unsigned char byData;
928
929 MACvRegBitsOn(iobase, MAC_REG_TFTCTL, TFTCTL_TSFCNTRRD);
930 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
931 VNSvInPortB(iobase + MAC_REG_TFTCTL, &byData);
932 if (!(byData & TFTCTL_TSFCNTRRD))
933 break;
934 }
935 if (ww == W_MAX_TIMEOUT)
936 return false;
937 VNSvInPortD(iobase + MAC_REG_TSFCNTR, (u32 *)pqwCurrTSF);
938 VNSvInPortD(iobase + MAC_REG_TSFCNTR + 4, (u32 *)pqwCurrTSF + 1);
939
940 return true;
941 }
942
943 /*
944 * Description: Read NIC TSF counter
945 * Get NEXTTBTT from adjusted TSF and Beacon Interval
946 *
947 * Parameters:
948 * In:
949 * qwTSF - Current TSF counter
950 * wbeaconInterval - Beacon Interval
951 * Out:
952 * qwCurrTSF - Current TSF counter
953 *
954 * Return Value: TSF value of next Beacon
955 */
CARDqGetNextTBTT(u64 qwTSF,unsigned short wBeaconInterval)956 u64 CARDqGetNextTBTT(u64 qwTSF, unsigned short wBeaconInterval)
957 {
958 u32 beacon_int;
959
960 beacon_int = wBeaconInterval * 1024;
961 if (beacon_int) {
962 do_div(qwTSF, beacon_int);
963 qwTSF += 1;
964 qwTSF *= beacon_int;
965 }
966
967 return qwTSF;
968 }
969
970 /*
971 * Description: Set NIC TSF counter for first Beacon time
972 * Get NEXTTBTT from adjusted TSF and Beacon Interval
973 *
974 * Parameters:
975 * In:
976 * iobase - IO Base
977 * wBeaconInterval - Beacon Interval
978 * Out:
979 * none
980 *
981 * Return Value: none
982 */
CARDvSetFirstNextTBTT(struct vnt_private * priv,unsigned short wBeaconInterval)983 void CARDvSetFirstNextTBTT(struct vnt_private *priv,
984 unsigned short wBeaconInterval)
985 {
986 void __iomem *iobase = priv->PortOffset;
987 u64 qwNextTBTT = 0;
988
989 CARDbGetCurrentTSF(priv, &qwNextTBTT); /* Get Local TSF counter */
990
991 qwNextTBTT = CARDqGetNextTBTT(qwNextTBTT, wBeaconInterval);
992 /* Set NextTBTT */
993 VNSvOutPortD(iobase + MAC_REG_NEXTTBTT, (u32)qwNextTBTT);
994 VNSvOutPortD(iobase + MAC_REG_NEXTTBTT + 4, (u32)(qwNextTBTT >> 32));
995 MACvRegBitsOn(iobase, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
996 }
997
998 /*
999 * Description: Sync NIC TSF counter for Beacon time
1000 * Get NEXTTBTT and write to HW
1001 *
1002 * Parameters:
1003 * In:
1004 * priv - The adapter to be set
1005 * qwTSF - Current TSF counter
1006 * wBeaconInterval - Beacon Interval
1007 * Out:
1008 * none
1009 *
1010 * Return Value: none
1011 */
CARDvUpdateNextTBTT(struct vnt_private * priv,u64 qwTSF,unsigned short wBeaconInterval)1012 void CARDvUpdateNextTBTT(struct vnt_private *priv, u64 qwTSF,
1013 unsigned short wBeaconInterval)
1014 {
1015 void __iomem *iobase = priv->PortOffset;
1016
1017 qwTSF = CARDqGetNextTBTT(qwTSF, wBeaconInterval);
1018 /* Set NextTBTT */
1019 VNSvOutPortD(iobase + MAC_REG_NEXTTBTT, (u32)qwTSF);
1020 VNSvOutPortD(iobase + MAC_REG_NEXTTBTT + 4, (u32)(qwTSF >> 32));
1021 MACvRegBitsOn(iobase, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
1022 pr_debug("Card:Update Next TBTT[%8llx]\n", qwTSF);
1023 }
1024
