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 * vnt_set_rspinf - Set RSPINF
24 * vnt_update_ifs - Update slotTime,SIFS,DIFS, and EIFS
25 * vnt_update_top_rates - Update BasicTopRate
26 * vnt_add_basic_rate - Add to BasicRateSet
27 * CARDbSetBasicRate - Set Basic Tx Rate
28 * vnt_ofdm_min_rate - Check if any OFDM rate is in BasicRateSet
29 * CARDvSetLoopbackMode - Set Loopback mode
30 * CARDbSoftwareReset - Sortware reset NIC
31 * vnt_get_tsf_offset - Calculate TSFOffset
32 * vnt_get_current_tsf - Read Current NIC TSF counter
33 * vnt_get_next_tbtt - Calculate Next Beacon TSF counter
34 * vnt_reset_next_tbtt - Set NIC Beacon time
35 * vnt_update_next_tbtt - Sync. NIC Beacon time
36 * vnt_radio_power_off - Turn Off NIC Radio Power
37 * vnt_radio_power_on - 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 vnt_update_ifs().
58 //const u16 cwRXBCNTSFOff[MAX_RATE] =
59 //{17, 34, 96, 192, 34, 23, 17, 11, 8, 5, 4, 3};
61 static const u16 cwRXBCNTSFOff[MAX_RATE] =
62 {192, 96, 34, 17, 34, 23, 17, 11, 8, 5, 4, 3};
65 * Description: Set NIC media channel
69 * pDevice - The adapter to be set
70 * connection_channel - Channel to be set
74 void vnt_set_channel(struct vnt_private *priv, u32 connection_channel)
77 if (connection_channel > CB_MAX_CHANNEL || !connection_channel)
81 vnt_mac_reg_bits_on(priv, MAC_REG_MACCR, MACCR_CLRNAV);
83 /* Set Channel[7] = 0 to tell H/W channel is changing now. */
84 vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL, 0xb0);
86 vnt_control_out(priv, MESSAGE_TYPE_SELECT_CHANNLE,
87 connection_channel, 0, 0, NULL);
89 vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_CHANNEL,
90 (u8)(connection_channel|0x80));
94 * Description: Get CCK mode basic rate
98 * priv - The adapter to be set
99 * rate_idx - Receiving data rate
103 * Return Value: response Control frame rate
106 static u16 vnt_get_cck_rate(struct vnt_private *priv, u16 rate_idx)
110 while (ui > RATE_1M) {
111 if (priv->wBasicRate & (1 << ui))
120 * Description: Get OFDM mode basic rate
124 * priv - The adapter to be set
125 * rate_idx - Receiving data rate
129 * Return Value: response Control frame rate
132 static u16 vnt_get_ofdm_rate(struct vnt_private *priv, u16 rate_idx)
136 dev_dbg(&priv->usb->dev, "%s basic rate: %d\n",
137 __func__, priv->wBasicRate);
139 if (!vnt_ofdm_min_rate(priv)) {
140 dev_dbg(&priv->usb->dev, "%s (NO OFDM) %d\n",
142 if (rate_idx > RATE_24M)
147 while (ui > RATE_11M) {
148 if (priv->wBasicRate & (1 << ui)) {
149 dev_dbg(&priv->usb->dev, "%s rate: %d\n",
156 dev_dbg(&priv->usb->dev, "%s basic rate: 24M\n", __func__);
162 * Description: Calculate TxRate and RsvTime fields for RSPINF in OFDM mode.
167 * bb_type - Tx Packet type
169 * tx_rate - pointer to RSPINF TxRate field
170 * rsv_time- pointer to RSPINF RsvTime field
175 static void vnt_calculate_ofdm_rate(u16 rate, u8 bb_type,
176 u8 *tx_rate, u8 *rsv_time)
181 if (bb_type == BB_TYPE_11A) {
190 if (bb_type == BB_TYPE_11A) {
199 if (bb_type == BB_TYPE_11A) {
208 if (bb_type == BB_TYPE_11A) {
217 if (bb_type == BB_TYPE_11A) {
226 if (bb_type == BB_TYPE_11A) {
235 if (bb_type == BB_TYPE_11A) {
245 if (bb_type == BB_TYPE_11A) {
257 * Description: Set RSPINF
261 * pDevice - The adapter to be set
265 * Return Value: None.
269 void vnt_set_rspinf(struct vnt_private *priv, u8 bb_type)
271 struct vnt_phy_field phy[4];
272 u8 tx_rate[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0}; /* For OFDM */
273 u8 rsv_time[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
278 vnt_get_phy_field(priv, 14,
279 vnt_get_cck_rate(priv, RATE_1M), PK_TYPE_11B, &phy[0]);
282 vnt_get_phy_field(priv, 14,
283 vnt_get_cck_rate(priv, RATE_2M), PK_TYPE_11B, &phy[1]);
286 vnt_get_phy_field(priv, 14,
287 vnt_get_cck_rate(priv, RATE_5M), PK_TYPE_11B, &phy[2]);
290 vnt_get_phy_field(priv, 14,
291 vnt_get_cck_rate(priv, RATE_11M), PK_TYPE_11B, &phy[3]);
295 vnt_calculate_ofdm_rate(RATE_6M, bb_type, &tx_rate[0], &rsv_time[0]);
298 vnt_calculate_ofdm_rate(RATE_9M, bb_type, &tx_rate[1], &rsv_time[1]);
301 vnt_calculate_ofdm_rate(RATE_12M, bb_type, &tx_rate[2], &rsv_time[2]);
304 vnt_calculate_ofdm_rate(RATE_18M, bb_type, &tx_rate[3], &rsv_time[3]);
307 vnt_calculate_ofdm_rate(RATE_24M, bb_type, &tx_rate[4], &rsv_time[4]);
310 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_36M),
311 bb_type, &tx_rate[5], &rsv_time[5]);
314 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_48M),
315 bb_type, &tx_rate[6], &rsv_time[6]);
318 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_54M),
319 bb_type, &tx_rate[7], &rsv_time[7]);
322 vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_54M),
323 bb_type, &tx_rate[8], &rsv_time[8]);
325 put_unaligned(phy[0].len, (u16 *)&data[0]);
326 data[2] = phy[0].signal;
327 data[3] = phy[0].service;
329 put_unaligned(phy[1].len, (u16 *)&data[4]);
330 data[6] = phy[1].signal;
331 data[7] = phy[1].service;
333 put_unaligned(phy[2].len, (u16 *)&data[8]);
334 data[10] = phy[2].signal;
335 data[11] = phy[2].service;
337 put_unaligned(phy[3].len, (u16 *)&data[12]);
338 data[14] = phy[3].signal;
339 data[15] = phy[3].service;
341 for (i = 0; i < 9; i++) {
342 data[16 + i * 2] = tx_rate[i];
343 data[16 + i * 2 + 1] = rsv_time[i];
346 vnt_control_out(priv, MESSAGE_TYPE_WRITE,
347 MAC_REG_RSPINF_B_1, MESSAGE_REQUEST_MACREG, 34, &data[0]);
351 * Description: Update IFS
355 * priv - The adapter to be set
359 * Return Value: None.
362 void vnt_update_ifs(struct vnt_private *priv)
367 if (priv->byPacketType == PK_TYPE_11A) {
368 priv->uSlot = C_SLOT_SHORT;
369 priv->uSIFS = C_SIFS_A;
370 priv->uDIFS = C_SIFS_A + 2 * C_SLOT_SHORT;
371 priv->uCwMin = C_CWMIN_A;
373 } else if (priv->byPacketType == PK_TYPE_11B) {
374 priv->uSlot = C_SLOT_LONG;
375 priv->uSIFS = C_SIFS_BG;
376 priv->uDIFS = C_SIFS_BG + 2 * C_SLOT_LONG;
377 priv->uCwMin = C_CWMIN_B;
379 } else {/* PK_TYPE_11GA & PK_TYPE_11GB */
380 bool ofdm_rate = false;
383 priv->uSIFS = C_SIFS_BG;
385 if (priv->bShortSlotTime)
386 priv->uSlot = C_SLOT_SHORT;
388 priv->uSlot = C_SLOT_LONG;
390 priv->uDIFS = C_SIFS_BG + 2 * priv->uSlot;
392 for (ii = RATE_54M; ii >= RATE_6M; ii--) {
393 if (priv->wBasicRate & ((u32)(0x1 << ii))) {
399 if (ofdm_rate == true) {
400 priv->uCwMin = C_CWMIN_A;
403 priv->uCwMin = C_CWMIN_B;
408 priv->uCwMax = C_CWMAX;
409 priv->uEIFS = C_EIFS;
411 data[0] = (u8)priv->uSIFS;
412 data[1] = (u8)priv->uDIFS;
413 data[2] = (u8)priv->uEIFS;
414 data[3] = (u8)priv->uSlot;
416 vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_SIFS,
417 MESSAGE_REQUEST_MACREG, 4, &data[0]);
421 vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_CWMAXMIN0,
422 MESSAGE_REQUEST_MACREG, 1, &max_min);
425 void vnt_update_top_rates(struct vnt_private *priv)
427 u8 top_ofdm = RATE_24M, top_cck = RATE_1M;
430 /*Determines the highest basic rate.*/
431 for (i = RATE_54M; i >= RATE_6M; i--) {
432 if (priv->wBasicRate & (u16)(1 << i)) {
438 priv->byTopOFDMBasicRate = top_ofdm;
440 for (i = RATE_11M;; i--) {
441 if (priv->wBasicRate & (u16)(1 << i)) {
449 priv->byTopCCKBasicRate = top_cck;
452 int vnt_ofdm_min_rate(struct vnt_private *priv)
456 for (ii = RATE_54M; ii >= RATE_6M; ii--) {
457 if ((priv->wBasicRate) & ((u16)(1 << ii)))
464 u8 vnt_get_pkt_type(struct vnt_private *priv)
467 if (priv->byBBType == BB_TYPE_11A || priv->byBBType == BB_TYPE_11B)
468 return (u8)priv->byBBType;
469 else if (vnt_ofdm_min_rate(priv))
476 * Description: Calculate TSF offset of two TSF input
477 * Get TSF Offset from RxBCN's TSF and local TSF
482 * tsf1 - Rx BCN's TSF
487 * Return Value: TSF Offset value
490 u64 vnt_get_tsf_offset(u8 rx_rate, u64 tsf1, u64 tsf2)
493 u16 rx_bcn_offset = 0;
495 rx_bcn_offset = cwRXBCNTSFOff[rx_rate % MAX_RATE];
497 tsf2 += (u64)rx_bcn_offset;
499 tsf_offset = tsf1 - tsf2;
505 * Description: Sync. TSF counter to BSS
506 * Get TSF offset and write to HW
510 * priv - The adapter to be sync.
511 * time_stamp - Rx BCN's TSF
512 * local_tsf - Local TSF
519 void vnt_adjust_tsf(struct vnt_private *priv, u8 rx_rate,
520 u64 time_stamp, u64 local_tsf)
525 tsf_offset = vnt_get_tsf_offset(rx_rate, time_stamp, local_tsf);
527 data[0] = (u8)tsf_offset;
528 data[1] = (u8)(tsf_offset >> 8);
529 data[2] = (u8)(tsf_offset >> 16);
530 data[3] = (u8)(tsf_offset >> 24);
531 data[4] = (u8)(tsf_offset >> 32);
532 data[5] = (u8)(tsf_offset >> 40);
533 data[6] = (u8)(tsf_offset >> 48);
534 data[7] = (u8)(tsf_offset >> 56);
536 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
537 MESSAGE_REQUEST_TSF, 0, 8, data);
540 * Description: Read NIC TSF counter
541 * Get local TSF counter
545 * priv - The adapter to be read
547 * current_tsf - Current TSF counter
549 * Return Value: true if success; otherwise false
552 bool vnt_get_current_tsf(struct vnt_private *priv, u64 *current_tsf)
555 *current_tsf = priv->qwCurrTSF;
561 * Description: Clear NIC TSF counter
562 * Clear local TSF counter
566 * priv - The adapter to be read
568 * Return Value: true if success; otherwise false
571 bool vnt_clear_current_tsf(struct vnt_private *priv)
574 vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
582 * Description: Read NIC TSF counter
583 * Get NEXTTBTT from adjusted TSF and Beacon Interval
587 * tsf - Current TSF counter
588 * beacon_interval - Beacon Interval
590 * tsf - Current TSF counter
592 * Return Value: TSF value of next Beacon
595 u64 vnt_get_next_tbtt(u64 tsf, u16 beacon_interval)
599 beacon_int = beacon_interval * 1024;
602 * ((local_current_TSF / beacon_interval) + 1) * beacon_interval
605 do_div(tsf, beacon_int);
614 * Description: Set NIC TSF counter for first Beacon time
615 * Get NEXTTBTT from adjusted TSF and Beacon Interval
620 * beacon_interval - Beacon Interval
627 void vnt_reset_next_tbtt(struct vnt_private *priv, u16 beacon_interval)
632 vnt_clear_current_tsf(priv);
634 next_tbtt = vnt_get_next_tbtt(next_tbtt, beacon_interval);
636 data[0] = (u8)next_tbtt;
637 data[1] = (u8)(next_tbtt >> 8);
638 data[2] = (u8)(next_tbtt >> 16);
639 data[3] = (u8)(next_tbtt >> 24);
640 data[4] = (u8)(next_tbtt >> 32);
641 data[5] = (u8)(next_tbtt >> 40);
642 data[6] = (u8)(next_tbtt >> 48);
643 data[7] = (u8)(next_tbtt >> 56);
645 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
646 MESSAGE_REQUEST_TBTT, 0, 8, data);
652 * Description: Sync NIC TSF counter for Beacon time
653 * Get NEXTTBTT and write to HW
657 * priv - The adapter to be set
658 * tsf - Current TSF counter
659 * beacon_interval - Beacon Interval
666 void vnt_update_next_tbtt(struct vnt_private *priv, u64 tsf,
671 tsf = vnt_get_next_tbtt(tsf, beacon_interval);
674 data[1] = (u8)(tsf >> 8);
675 data[2] = (u8)(tsf >> 16);
676 data[3] = (u8)(tsf >> 24);
677 data[4] = (u8)(tsf >> 32);
678 data[5] = (u8)(tsf >> 40);
679 data[6] = (u8)(tsf >> 48);
680 data[7] = (u8)(tsf >> 56);
682 vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT,
683 MESSAGE_REQUEST_TBTT, 0, 8, data);
685 dev_dbg(&priv->usb->dev, "%s TBTT: %8llx\n", __func__, tsf);
691 * Description: Turn off Radio power
695 * priv - The adapter to be turned off
699 * Return Value: true if success; otherwise false
702 int vnt_radio_power_off(struct vnt_private *priv)
706 priv->bRadioOff = true;
708 switch (priv->byRFType) {
715 vnt_mac_reg_bits_off(priv, MAC_REG_SOFTPWRCTL,
716 (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
720 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
722 BBvSetDeepSleep(priv);
728 * Description: Turn on Radio power
732 * priv - The adapter to be turned on
736 * Return Value: true if success; otherwise false
739 int vnt_radio_power_on(struct vnt_private *priv)
743 if (priv->bHWRadioOff == true || priv->bRadioControlOff == true)
746 priv->bRadioOff = false;
748 BBvExitDeepSleep(priv);
750 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
752 switch (priv->byRFType) {
759 vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
760 (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
767 void vnt_set_bss_mode(struct vnt_private *priv)
769 if (priv->byRFType == RF_AIROHA7230 && priv->byBBType == BB_TYPE_11A)
770 vnt_mac_set_bb_type(priv, BB_TYPE_11G);
772 vnt_mac_set_bb_type(priv, priv->byBBType);
774 priv->byPacketType = vnt_get_pkt_type(priv);
776 if (priv->byBBType == BB_TYPE_11A)
777 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x03);
778 else if (priv->byBBType == BB_TYPE_11B)
779 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x02);
780 else if (priv->byBBType == BB_TYPE_11G)
781 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x08);
783 vnt_update_ifs(priv);
784 vnt_set_rspinf(priv, (u8)priv->byBBType);
786 if (priv->byBBType == BB_TYPE_11A) {
787 if (priv->byRFType == RF_AIROHA7230) {
788 priv->abyBBVGA[0] = 0x20;
790 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG,
791 0xe7, priv->abyBBVGA[0]);
794 priv->abyBBVGA[2] = 0x10;
795 priv->abyBBVGA[3] = 0x10;
797 if (priv->byRFType == RF_AIROHA7230) {
798 priv->abyBBVGA[0] = 0x1c;
800 vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG,
801 0xe7, priv->abyBBVGA[0]);
804 priv->abyBBVGA[2] = 0x0;
805 priv->abyBBVGA[3] = 0x0;
808 BBvSetVGAGainOffset(priv, priv->abyBBVGA[0]);