2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 * Purpose: Provide functions to setup NIC operation mode
22 * s_vSafeResetTx - Rest Tx
23 * CARDvSetRSPINF - Set RSPINF
24 * vUpdateIFS - Update slotTime,SIFS,DIFS, and EIFS
25 * CARDvUpdateBasicTopRate - Update BasicTopRate
26 * CARDbAddBasicRate - Add to BasicRateSet
27 * CARDbSetBasicRate - Set Basic Tx Rate
28 * CARDbIsOFDMinBasicRate - Check if any OFDM rate is in BasicRateSet
29 * CARDvSetLoopbackMode - Set Loopback mode
30 * CARDbSoftwareReset - Sortware reset NIC
31 * CARDqGetTSFOffset - Calculate TSFOffset
32 * CARDbGetCurrentTSF - Read Current NIC TSF counter
33 * CARDqGetNextTBTT - Calculate Next Beacon TSF counter
34 * CARDvSetFirstNextTBTT - Set NIC Beacon time
35 * CARDvUpdateNextTBTT - Sync. NIC Beacon time
36 * CARDbRadioPowerOff - Turn Off NIC Radio Power
37 * CARDbRadioPowerOn - Turn On NIC Radio Power
38 * CARDbSetWEPMode - Set NIC Wep mode
39 * CARDbSetTxPower - Set NIC tx power
42 * 06-10-2003 Bryan YC Fan: Re-write codes to support VT3253 spec.
43 * 08-26-2003 Kyle Hsu: Modify the definition type of dwIoBase.
44 * 09-01-2003 Bryan YC Fan: Add vUpdateIFS().
62 //const u16 cwRXBCNTSFOff[MAX_RATE] =
63 //{17, 34, 96, 192, 34, 23, 17, 11, 8, 5, 4, 3};
65 static const u16 cwRXBCNTSFOff[MAX_RATE] =
66 {192, 96, 34, 17, 34, 23, 17, 11, 8, 5, 4, 3};
69 * Description: Set NIC media channel
73 * pDevice - The adapter to be set
74 * connection_channel - Channel to be set
78 void CARDbSetMediaChannel(struct vnt_private *priv, u32 connection_channel)
81 if (priv->byBBType == BB_TYPE_11A) {
82 if ((connection_channel < (CB_MAX_CHANNEL_24G + 1)) ||
83 (connection_channel > CB_MAX_CHANNEL))
84 connection_channel = (CB_MAX_CHANNEL_24G + 1);
86 if ((connection_channel > CB_MAX_CHANNEL_24G) ||
87 (connection_channel == 0))
88 connection_channel = 1;
92 MACvRegBitsOn(priv, MAC_REG_MACCR, MACCR_CLRNAV);
94 /* Set Channel[7] = 0 to tell H/W channel is changing now. */
95 MACvRegBitsOff(priv, MAC_REG_CHANNEL, 0xb0);
97 vnt_control_out(priv, MESSAGE_TYPE_SELECT_CHANNLE,
98 connection_channel, 0, 0, NULL);
100 if (priv->byBBType == BB_TYPE_11A) {
101 priv->byCurPwr = 0xff;
102 vnt_rf_set_txpower(priv,
103 priv->abyOFDMAPwrTbl[connection_channel-15], RATE_54M);
104 } else if (priv->byBBType == BB_TYPE_11G) {
105 priv->byCurPwr = 0xff;
106 vnt_rf_set_txpower(priv,
107 priv->abyOFDMPwrTbl[connection_channel-1], RATE_54M);
109 priv->byCurPwr = 0xff;
110 vnt_rf_set_txpower(priv,
111 priv->abyCCKPwrTbl[connection_channel-1], RATE_1M);
114 vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_CHANNEL,
115 (u8)(connection_channel|0x80));
119 * Description: Get CCK mode basic rate
123 * priv - The adapter to be set
124 * rate_idx - Receiving data rate
128 * Return Value: response Control frame rate
131 static u16 swGetCCKControlRate(struct vnt_private *priv, u16 rate_idx)
135 while (ui > RATE_1M) {
136 if (priv->wBasicRate & (1 << ui))
145 * Description: Get OFDM mode basic rate
149 * priv - The adapter to be set
150 * rate_idx - Receiving data rate
154 * Return Value: response Control frame rate
157 static u16 swGetOFDMControlRate(struct vnt_private *priv, u16 rate_idx)
161 dev_dbg(&priv->usb->dev, "%s basic rate: %d\n",
162 __func__, priv->wBasicRate);
164 if (!CARDbIsOFDMinBasicRate(priv)) {
165 dev_dbg(&priv->usb->dev, "%s (NO OFDM) %d\n",
167 if (rate_idx > RATE_24M)
172 while (ui > RATE_11M) {
173 if (priv->wBasicRate & (1 << ui)) {
174 dev_dbg(&priv->usb->dev, "%s rate: %d\n",
181 dev_dbg(&priv->usb->dev, "%s basic rate: 24M\n", __func__);
187 * Description: Calculate TxRate and RsvTime fields for RSPINF in OFDM mode.
192 * bb_type - Tx Packet type
194 * tx_rate - pointer to RSPINF TxRate field
195 * rsv_time- pointer to RSPINF RsvTime field
200 static void CARDvCalculateOFDMRParameter(u16 rate, u8 bb_type,
201 u8 *tx_rate, u8 *rsv_time)
206 if (bb_type == BB_TYPE_11A) {
215 if (bb_type == BB_TYPE_11A) {
224 if (bb_type == BB_TYPE_11A) {
233 if (bb_type == BB_TYPE_11A) {
242 if (bb_type == BB_TYPE_11A) {
251 if (bb_type == BB_TYPE_11A) {
260 if (bb_type == BB_TYPE_11A) {
270 if (bb_type == BB_TYPE_11A) {
282 * Description: Set RSPINF
286 * pDevice - The adapter to be set
290 * Return Value: None.
294 void CARDvSetRSPINF(struct vnt_private *priv, u8 bb_type)
296 struct vnt_phy_field phy[4];
297 u8 tx_rate[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0}; /* For OFDM */
298 u8 rsv_time[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
303 BBvCalculateParameter(priv, 14,
304 swGetCCKControlRate(priv, RATE_1M), PK_TYPE_11B, &phy[0]);
307 BBvCalculateParameter(priv, 14,
308 swGetCCKControlRate(priv, RATE_2M), PK_TYPE_11B, &phy[1]);
311 BBvCalculateParameter(priv, 14,
312 swGetCCKControlRate(priv, RATE_5M), PK_TYPE_11B, &phy[2]);
315 BBvCalculateParameter(priv, 14,
316 swGetCCKControlRate(priv, RATE_11M), PK_TYPE_11B, &phy[3]);
320 CARDvCalculateOFDMRParameter(RATE_6M, bb_type,
321 &tx_rate[0], &rsv_time[0]);
324 CARDvCalculateOFDMRParameter(RATE_9M, bb_type,
325 &tx_rate[1], &rsv_time[1]);
328 CARDvCalculateOFDMRParameter(RATE_12M, bb_type,
329 &tx_rate[2], &rsv_time[2]);
332 CARDvCalculateOFDMRParameter(RATE_18M, bb_type,
333 &tx_rate[3], &rsv_time[3]);
336 CARDvCalculateOFDMRParameter(RATE_24M, bb_type,
337 &tx_rate[4], &rsv_time[4]);
340 CARDvCalculateOFDMRParameter(swGetOFDMControlRate(priv, RATE_36M),
341 bb_type, &tx_rate[5], &rsv_time[5]);
344 CARDvCalculateOFDMRParameter(swGetOFDMControlRate(priv, RATE_48M),
345 bb_type, &tx_rate[6], &rsv_time[6]);
348 CARDvCalculateOFDMRParameter(swGetOFDMControlRate(priv, RATE_54M),
349 bb_type, &tx_rate[7], &rsv_time[7]);
352 CARDvCalculateOFDMRParameter(swGetOFDMControlRate(priv, RATE_54M),
353 bb_type, &tx_rate[8], &rsv_time[8]);
355 put_unaligned(phy[0].len, (u16 *)&data[0]);
356 data[2] = phy[0].signal;
357 data[3] = phy[0].service;
359 put_unaligned(phy[1].len, (u16 *)&data[4]);
360 data[6] = phy[1].signal;
361 data[7] = phy[1].service;
363 put_unaligned(phy[2].len, (u16 *)&data[8]);
364 data[10] = phy[2].signal;
365 data[11] = phy[2].service;
367 put_unaligned(phy[3].len, (u16 *)&data[12]);
368 data[14] = phy[3].signal;
369 data[15] = phy[3].service;
371 for (i = 0; i < 9; i++) {
372 data[16 + i * 2] = tx_rate[i];
373 data[16 + i * 2 + 1] = rsv_time[i];
376 vnt_control_out(priv, MESSAGE_TYPE_WRITE,
377 MAC_REG_RSPINF_B_1, MESSAGE_REQUEST_MACREG, 34, &data[0]);
381 * Description: Update IFS
385 * priv - The adapter to be set
389 * Return Value: None.
392 void vUpdateIFS(struct vnt_private *priv)
397 if (priv->byPacketType == PK_TYPE_11A) {
398 priv->uSlot = C_SLOT_SHORT;
399 priv->uSIFS = C_SIFS_A;
400 priv->uDIFS = C_SIFS_A + 2 * C_SLOT_SHORT;
401 priv->uCwMin = C_CWMIN_A;
403 } else if (priv->byPacketType == PK_TYPE_11B) {
404 priv->uSlot = C_SLOT_LONG;
405 priv->uSIFS = C_SIFS_BG;
406 priv->uDIFS = C_SIFS_BG + 2 * C_SLOT_LONG;
407 priv->uCwMin = C_CWMIN_B;
409 } else {/* PK_TYPE_11GA & PK_TYPE_11GB */
411 bool ofdm_rate = false;
413 PWLAN_IE_SUPP_RATES item_rates = NULL;
415 priv->uSIFS = C_SIFS_BG;
417 if (priv->bShortSlotTime)
418 priv->uSlot = C_SLOT_SHORT;
420 priv->uSlot = C_SLOT_LONG;
422 priv->uDIFS = C_SIFS_BG + 2 * priv->uSlot;
425 (PWLAN_IE_SUPP_RATES)priv->vnt_mgmt.abyCurrSuppRates;
427 for (ii = 0; ii < item_rates->len; ii++) {
428 rate = (u8)(item_rates->abyRates[ii] & 0x7f);
429 if (RATEwGetRateIdx(rate) > RATE_11M) {
435 if (ofdm_rate == false) {
436 item_rates = (PWLAN_IE_SUPP_RATES)priv->vnt_mgmt
437 .abyCurrExtSuppRates;
438 for (ii = 0; ii < item_rates->len; ii++) {
439 rate = (u8)(item_rates->abyRates[ii] & 0x7f);
440 if (RATEwGetRateIdx(rate) > RATE_11M) {
447 if (ofdm_rate == true) {
448 priv->uCwMin = C_CWMIN_A;
451 priv->uCwMin = C_CWMIN_B;
456 priv->uCwMax = C_CWMAX;
457 priv->uEIFS = C_EIFS;
459 data[0] = (u8)priv->uSIFS;
460 data[1] = (u8)priv->uDIFS;
461 data[2] = (u8)priv->uEIFS;
462 data[3] = (u8)priv->uSlot;
464 vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_SIFS,
465 MESSAGE_REQUEST_MACREG, 4, &data[0]);
469 vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_CWMAXMIN0,
470 MESSAGE_REQUEST_MACREG, 1, &max_min);
473 void CARDvUpdateBasicTopRate(struct vnt_private *priv)
475 u8 top_ofdm = RATE_24M, top_cck = RATE_1M;
478 /*Determines the highest basic rate.*/
479 for (i = RATE_54M; i >= RATE_6M; i--) {
480 if (priv->wBasicRate & (u16)(1 << i)) {
486 priv->byTopOFDMBasicRate = top_ofdm;
488 for (i = RATE_11M;; i--) {
489 if (priv->wBasicRate & (u16)(1 << i)) {
497 priv->byTopCCKBasicRate = top_cck;
501 * Description: Set NIC Tx Basic Rate
505 * pDevice - The adapter to be set
506 * wBasicRate - Basic Rate to be set
510 * Return Value: true if succeeded; false if failed.
513 void CARDbAddBasicRate(struct vnt_private *priv, u16 rate_idx)
516 priv->wBasicRate |= (1 << rate_idx);
518 /*Determines the highest basic rate.*/
519 CARDvUpdateBasicTopRate(priv);
522 int CARDbIsOFDMinBasicRate(struct vnt_private *priv)
526 for (ii = RATE_54M; ii >= RATE_6M; ii--) {
527 if ((priv->wBasicRate) & ((u16)(1 << ii)))
534 u8 CARDbyGetPktType(struct vnt_private *priv)
537 if (priv->byBBType == BB_TYPE_11A || priv->byBBType == BB_TYPE_11B)
538 return (u8)priv->byBBType;
539 else if (CARDbIsOFDMinBasicRate(priv))
546 * Description: Calculate TSF offset of two TSF input
547 * Get TSF Offset from RxBCN's TSF and local TSF
552 * tsf1 - Rx BCN's TSF
557 * Return Value: TSF Offset value
560 u64 CARDqGetTSFOffset(u8 rx_rate, u64 tsf1, u64 tsf2)
563 u16 rx_bcn_offset = 0;
565 rx_bcn_offset = cwRXBCNTSFOff[rx_rate % MAX_RATE];
567 tsf2 += (u64)rx_bcn_offset;
569 tsf_offset = tsf1 - tsf2;
575 * Description: Sync. TSF counter to BSS
576 * Get TSF offset and write to HW
580 * priv - The adapter to be sync.
581 * time_stamp - Rx BCN's TSF
582 * local_tsf - Local TSF
589 void CARDvAdjustTSF(struct vnt_private *priv, u8 rx_rate,
590 u64 time_stamp, u64 local_tsf)
595 tsf_offset = CARDqGetTSFOffset(rx_rate, time_stamp, local_tsf);
597 data[0] = (u8)tsf_offset;
598 data[1] = (u8)(tsf_offset >> 8);
599 data[2] = (u8)(tsf_offset >> 16);
600 data[3] = (u8)(tsf_offset >> 24);
601 data[4] = (u8)(tsf_offset >> 32);
602 data[5] = (u8)(tsf_offset >> 40);
603 data[6] = (u8)(tsf_offset >> 48);
604 data[7] = (u8)(tsf_offset >> 56);
606 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
607 MESSAGE_REQUEST_TSF, 0, 8, data);
610 * Description: Read NIC TSF counter
611 * Get local TSF counter
615 * priv - The adapter to be read
617 * current_tsf - Current TSF counter
619 * Return Value: true if success; otherwise false
622 bool CARDbGetCurrentTSF(struct vnt_private *priv, u64 *current_tsf)
625 *current_tsf = priv->qwCurrTSF;
631 * Description: Clear NIC TSF counter
632 * Clear local TSF counter
636 * priv - The adapter to be read
638 * Return Value: true if success; otherwise false
641 bool CARDbClearCurrentTSF(struct vnt_private *priv)
644 MACvRegBitsOn(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
652 * Description: Read NIC TSF counter
653 * Get NEXTTBTT from adjusted TSF and Beacon Interval
657 * tsf - Current TSF counter
658 * beacon_interval - Beacon Interval
660 * tsf - Current TSF counter
662 * Return Value: TSF value of next Beacon
665 u64 CARDqGetNextTBTT(u64 tsf, u16 beacon_interval)
669 beacon_int = beacon_interval * 1024;
672 * ((local_current_TSF / beacon_interval) + 1) * beacon_interval
675 do_div(tsf, beacon_int);
684 * Description: Set NIC TSF counter for first Beacon time
685 * Get NEXTTBTT from adjusted TSF and Beacon Interval
690 * beacon_interval - Beacon Interval
697 void CARDvSetFirstNextTBTT(struct vnt_private *priv, u16 beacon_interval)
702 CARDbClearCurrentTSF(priv);
704 next_tbtt = CARDqGetNextTBTT(next_tbtt, beacon_interval);
706 data[0] = (u8)next_tbtt;
707 data[1] = (u8)(next_tbtt >> 8);
708 data[2] = (u8)(next_tbtt >> 16);
709 data[3] = (u8)(next_tbtt >> 24);
710 data[4] = (u8)(next_tbtt >> 32);
711 data[5] = (u8)(next_tbtt >> 40);
712 data[6] = (u8)(next_tbtt >> 48);
713 data[7] = (u8)(next_tbtt >> 56);
715 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
716 MESSAGE_REQUEST_TBTT, 0, 8, data);
722 * Description: Sync NIC TSF counter for Beacon time
723 * Get NEXTTBTT and write to HW
727 * priv - The adapter to be set
728 * tsf - Current TSF counter
729 * beacon_interval - Beacon Interval
736 void CARDvUpdateNextTBTT(struct vnt_private *priv, u64 tsf,
741 tsf = CARDqGetNextTBTT(tsf, beacon_interval);
744 data[1] = (u8)(tsf >> 8);
745 data[2] = (u8)(tsf >> 16);
746 data[3] = (u8)(tsf >> 24);
747 data[4] = (u8)(tsf >> 32);
748 data[5] = (u8)(tsf >> 40);
749 data[6] = (u8)(tsf >> 48);
750 data[7] = (u8)(tsf >> 56);
752 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
753 MESSAGE_REQUEST_TBTT, 0, 8, data);
755 dev_dbg(&priv->usb->dev, "%s TBTT: %8llx\n", __func__, tsf);
761 * Description: Turn off Radio power
765 * priv - The adapter to be turned off
769 * Return Value: true if success; otherwise false
772 int CARDbRadioPowerOff(struct vnt_private *priv)
776 priv->bRadioOff = true;
778 switch (priv->byRFType) {
785 MACvRegBitsOff(priv, MAC_REG_SOFTPWRCTL,
786 (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
790 MACvRegBitsOff(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
792 BBvSetDeepSleep(priv);
798 * Description: Turn on Radio power
802 * priv - The adapter to be turned on
806 * Return Value: true if success; otherwise false
809 int CARDbRadioPowerOn(struct vnt_private *priv)
813 if (priv->bHWRadioOff == true || priv->bRadioControlOff == true)
816 priv->bRadioOff = false;
818 BBvExitDeepSleep(priv);
820 MACvRegBitsOn(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
822 switch (priv->byRFType) {
829 MACvRegBitsOn(priv, MAC_REG_SOFTPWRCTL,
830 (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
837 void CARDvSetBSSMode(struct vnt_private *priv)
839 if (priv->byRFType == RF_AIROHA7230 && priv->byBBType == BB_TYPE_11A)
840 MACvSetBBType(priv, BB_TYPE_11G);
842 MACvSetBBType(priv, priv->byBBType);
844 priv->byPacketType = CARDbyGetPktType(priv);
846 if (priv->byBBType == BB_TYPE_11A)
847 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x03);
848 else if (priv->byBBType == BB_TYPE_11B)
849 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x02);
850 else if (priv->byBBType == BB_TYPE_11G)
851 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x08);
854 CARDvSetRSPINF(priv, (u8)priv->byBBType);
856 if (priv->byBBType == BB_TYPE_11A) {
857 if (priv->byRFType == RF_AIROHA7230) {
858 priv->abyBBVGA[0] = 0x20;
860 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG,
861 0xe7, priv->abyBBVGA[0]);
864 priv->abyBBVGA[2] = 0x10;
865 priv->abyBBVGA[3] = 0x10;
867 if (priv->byRFType == RF_AIROHA7230) {
868 priv->abyBBVGA[0] = 0x1c;
870 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG,
871 0xe7, priv->abyBBVGA[0]);
874 priv->abyBBVGA[2] = 0x0;
875 priv->abyBBVGA[3] = 0x0;