1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 ******************************************************************************/
15 #define _RTL8188E_CMD_C_
17 #include <osdep_service.h>
18 #include <drv_types.h>
19 #include <recv_osdep.h>
20 #include <mlme_osdep.h>
21 #include <rtw_ioctl_set.h>
23 #include <rtl8188e_hal.h>
25 #define RTL88E_MAX_H2C_BOX_NUMS 4
26 #define RTL88E_MAX_CMD_LEN 7
27 #define RTL88E_MESSAGE_BOX_SIZE 4
28 #define RTL88E_EX_MESSAGE_BOX_SIZE 4
30 static u8 _is_fw_read_cmd_down(struct adapter *adapt, u8 msgbox_num)
38 valid = usb_read8(adapt, REG_HMETFR) & BIT(msgbox_num);
41 } while ((!read_down) && (retry_cnts--));
46 /*****************************************
49 *| 31 - 8 | 7-5 4 - 0 |
50 *| h2c_msg |Class_ID CMD_ID |
52 * Extend 0x1FF - 0x1F0
55 ******************************************/
56 static s32 FillH2CCmd_88E(struct adapter *adapt, u8 ElementID, u32 CmdLen, u8 *pCmdBuffer)
63 u8 cmd_idx, ext_cmd_len;
69 if (!adapt->bFWReady) {
70 DBG_88E("FillH2CCmd_88E(): return H2C cmd because fw is not ready\n");
76 if (CmdLen > RTL88E_MAX_CMD_LEN)
78 if (adapt->bSurpriseRemoved)
81 /* pay attention to if race condition happened in H2C cmd setting. */
83 h2c_box_num = adapt->HalData->LastHMEBoxNum;
85 if (!_is_fw_read_cmd_down(adapt, h2c_box_num)) {
86 DBG_88E(" fw read cmd failed...\n");
90 *(u8 *)(&h2c_cmd) = ElementID;
93 memcpy((u8 *)(&h2c_cmd)+1, pCmdBuffer, CmdLen);
95 memcpy((u8 *)(&h2c_cmd)+1, pCmdBuffer, 3);
96 ext_cmd_len = CmdLen-3;
97 memcpy((u8 *)(&h2c_cmd_ex), pCmdBuffer+3, ext_cmd_len);
99 /* Write Ext command */
100 msgbox_ex_addr = REG_HMEBOX_EXT_0 + (h2c_box_num * RTL88E_EX_MESSAGE_BOX_SIZE);
101 for (cmd_idx = 0; cmd_idx < ext_cmd_len; cmd_idx++) {
102 usb_write8(adapt, msgbox_ex_addr+cmd_idx, *((u8 *)(&h2c_cmd_ex)+cmd_idx));
106 msgbox_addr = REG_HMEBOX_0 + (h2c_box_num * RTL88E_MESSAGE_BOX_SIZE);
107 for (cmd_idx = 0; cmd_idx < RTL88E_MESSAGE_BOX_SIZE; cmd_idx++) {
108 usb_write8(adapt, msgbox_addr+cmd_idx, *((u8 *)(&h2c_cmd)+cmd_idx));
112 adapt->HalData->LastHMEBoxNum =
113 (h2c_box_num+1) % RTL88E_MAX_H2C_BOX_NUMS;
115 } while ((!bcmd_down) && (retry_cnts--));
125 /* bitmap[0:27] = tx_rate_bitmap */
126 /* bitmap[28:31]= Rate Adaptive id */
127 /* arg[0:4] = macid */
128 /* arg[5] = Short GI */
129 void rtw_hal_add_ra_tid(struct adapter *pAdapter, u32 bitmap, u8 arg, u8 rssi_level)
131 struct odm_dm_struct *odmpriv = &pAdapter->HalData->odmpriv;
133 u8 macid, init_rate, raid, shortGIrate = false;
137 raid = (bitmap>>28) & 0x0f;
138 bitmap &= 0x0fffffff;
140 if (rssi_level != DM_RATR_STA_INIT)
141 bitmap = ODM_Get_Rate_Bitmap(odmpriv, macid, bitmap, rssi_level);
143 bitmap |= ((raid<<28)&0xf0000000);
145 init_rate = get_highest_rate_idx(bitmap&0x0fffffff)&0x3f;
147 shortGIrate = (arg & BIT(5)) ? true : false;
152 raid = (bitmap>>28) & 0x0f;
154 bitmap &= 0x0fffffff;
156 DBG_88E("%s=> mac_id:%d, raid:%d, ra_bitmap=0x%x, shortGIrate=0x%02x\n",
157 __func__, macid, raid, bitmap, shortGIrate);
159 ODM_RA_UpdateRateInfo_8188E(odmpriv, macid, raid, bitmap, shortGIrate);
162 void rtl8188e_set_FwPwrMode_cmd(struct adapter *adapt, u8 Mode)
164 struct setpwrmode_parm H2CSetPwrMode;
165 struct pwrctrl_priv *pwrpriv = &adapt->pwrctrlpriv;
166 u8 RLBM = 0; /* 0:Min, 1:Max, 2:User define */
168 DBG_88E("%s: Mode=%d SmartPS=%d UAPSD=%d\n", __func__,
169 Mode, pwrpriv->smart_ps, adapt->registrypriv.uapsd_enable);
173 H2CSetPwrMode.Mode = 0;
176 H2CSetPwrMode.Mode = 1;
180 H2CSetPwrMode.Mode = 1;
184 H2CSetPwrMode.Mode = 1;
186 case PS_MODE_UAPSD_WMM:
187 H2CSetPwrMode.Mode = 2;
190 H2CSetPwrMode.Mode = 0;
194 H2CSetPwrMode.SmartPS_RLBM = (((pwrpriv->smart_ps<<4)&0xf0) | (RLBM & 0x0f));
196 H2CSetPwrMode.AwakeInterval = 1;
198 H2CSetPwrMode.bAllQueueUAPSD = adapt->registrypriv.uapsd_enable;
201 H2CSetPwrMode.PwrState = 0x00;/* AllON(0x0C), RFON(0x04), RFOFF(0x00) */
203 H2CSetPwrMode.PwrState = 0x0C;/* AllON(0x0C), RFON(0x04), RFOFF(0x00) */
205 FillH2CCmd_88E(adapt, H2C_PS_PWR_MODE, sizeof(H2CSetPwrMode), (u8 *)&H2CSetPwrMode);
209 void rtl8188e_set_FwMediaStatus_cmd(struct adapter *adapt, __le16 mstatus_rpt)
212 u16 mst_rpt = le16_to_cpu(mstatus_rpt);
214 opmode = (u8)mst_rpt;
215 macid = (u8)(mst_rpt >> 8);
217 DBG_88E("### %s: MStatus=%x MACID=%d\n", __func__, opmode, macid);
218 FillH2CCmd_88E(adapt, H2C_COM_MEDIA_STATUS_RPT, sizeof(mst_rpt), (u8 *)&mst_rpt);
221 static void ConstructBeacon(struct adapter *adapt, u8 *pframe, u32 *pLength)
223 struct ieee80211_hdr *pwlanhdr;
225 u32 rate_len, pktlen;
226 struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
227 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
228 struct wlan_bssid_ex *cur_network = &(pmlmeinfo->network);
229 u8 bc_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
231 pwlanhdr = (struct ieee80211_hdr *)pframe;
233 fctrl = &pwlanhdr->frame_control;
236 ether_addr_copy(pwlanhdr->addr1, bc_addr);
237 ether_addr_copy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)));
238 ether_addr_copy(pwlanhdr->addr3, cur_network->MacAddress);
240 SetSeqNum(pwlanhdr, 0/*pmlmeext->mgnt_seq*/);
241 SetFrameSubType(pframe, WIFI_BEACON);
243 pframe += sizeof(struct ieee80211_hdr_3addr);
244 pktlen = sizeof(struct ieee80211_hdr_3addr);
246 /* timestamp will be inserted by hardware */
250 /* beacon interval: 2 bytes */
251 memcpy(pframe, (unsigned char *)(rtw_get_beacon_interval_from_ie(cur_network->IEs)), 2);
256 /* capability info: 2 bytes */
257 memcpy(pframe, (unsigned char *)(rtw_get_capability_from_ie(cur_network->IEs)), 2);
262 if ((pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE) {
263 pktlen += cur_network->IELength - sizeof(struct ndis_802_11_fixed_ie);
264 memcpy(pframe, cur_network->IEs+sizeof(struct ndis_802_11_fixed_ie), pktlen);
266 goto _ConstructBeacon;
269 /* below for ad-hoc mode */
272 pframe = rtw_set_ie(pframe, _SSID_IE_, cur_network->Ssid.SsidLength, cur_network->Ssid.Ssid, &pktlen);
274 /* supported rates... */
275 rate_len = rtw_get_rateset_len(cur_network->SupportedRates);
276 pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_, min_t(u32, rate_len, 8), cur_network->SupportedRates, &pktlen);
278 /* DS parameter set */
279 pframe = rtw_set_ie(pframe, _DSSET_IE_, 1, (unsigned char *)&(cur_network->Configuration.DSConfig), &pktlen);
281 if ((pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE) {
283 /* IBSS Parameter Set... */
285 pframe = rtw_set_ie(pframe, _IBSS_PARA_IE_, 2, (unsigned char *)(&ATIMWindow), &pktlen);
290 /* EXTERNDED SUPPORTED RATE */
292 pframe = rtw_set_ie(pframe, _EXT_SUPPORTEDRATES_IE_, (rate_len - 8), (cur_network->SupportedRates + 8), &pktlen);
294 /* todo:HT for adhoc */
298 if ((pktlen + TXDESC_SIZE) > 512) {
299 DBG_88E("beacon frame too large\n");
306 static void ConstructPSPoll(struct adapter *adapt, u8 *pframe, u32 *pLength)
308 struct ieee80211_hdr *pwlanhdr;
309 struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
310 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
312 struct wlan_bssid_ex *pnetwork = &(pmlmeinfo->network);
314 pwlanhdr = (struct ieee80211_hdr *)pframe;
317 fctrl = &pwlanhdr->frame_control;
320 SetFrameSubType(pframe, WIFI_PSPOLL);
323 SetDuration(pframe, (pmlmeinfo->aid | 0xc000));
326 ether_addr_copy(pwlanhdr->addr1, pnetwork->MacAddress);
329 ether_addr_copy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)));
334 static void ConstructNullFunctionData(struct adapter *adapt, u8 *pframe,
342 struct ieee80211_hdr *pwlanhdr;
345 struct mlme_priv *pmlmepriv = &adapt->mlmepriv;
346 struct wlan_network *cur_network = &pmlmepriv->cur_network;
347 struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
348 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
349 struct wlan_bssid_ex *pnetwork = &(pmlmeinfo->network);
351 pwlanhdr = (struct ieee80211_hdr *)pframe;
353 fctrl = &pwlanhdr->frame_control;
358 switch (cur_network->network.InfrastructureMode) {
359 case Ndis802_11Infrastructure:
361 ether_addr_copy(pwlanhdr->addr1, pnetwork->MacAddress);
362 ether_addr_copy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)));
363 ether_addr_copy(pwlanhdr->addr3, StaAddr);
365 case Ndis802_11APMode:
367 ether_addr_copy(pwlanhdr->addr1, StaAddr);
368 ether_addr_copy(pwlanhdr->addr2, pnetwork->MacAddress);
369 ether_addr_copy(pwlanhdr->addr3, myid(&(adapt->eeprompriv)));
373 ether_addr_copy(pwlanhdr->addr1, StaAddr);
374 ether_addr_copy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)));
375 ether_addr_copy(pwlanhdr->addr3, pnetwork->MacAddress);
379 SetSeqNum(pwlanhdr, 0);
382 struct ieee80211_qos_hdr *pwlanqoshdr;
384 SetFrameSubType(pframe, WIFI_QOS_DATA_NULL);
386 pwlanqoshdr = (struct ieee80211_qos_hdr *)pframe;
387 SetPriority(&pwlanqoshdr->qos_ctrl, AC);
388 SetEOSP(&pwlanqoshdr->qos_ctrl, bEosp);
390 pktlen = sizeof(struct ieee80211_qos_hdr);
392 SetFrameSubType(pframe, WIFI_DATA_NULL);
394 pktlen = sizeof(struct ieee80211_hdr_3addr);
400 static void ConstructProbeRsp(struct adapter *adapt, u8 *pframe, u32 *pLength, u8 *StaAddr, bool bHideSSID)
402 struct ieee80211_hdr *pwlanhdr;
406 struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
407 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
408 struct wlan_bssid_ex *cur_network = &(pmlmeinfo->network);
410 pwlanhdr = (struct ieee80211_hdr *)pframe;
412 mac = myid(&(adapt->eeprompriv));
413 bssid = cur_network->MacAddress;
415 fctrl = &pwlanhdr->frame_control;
417 ether_addr_copy(pwlanhdr->addr1, StaAddr);
418 ether_addr_copy(pwlanhdr->addr2, mac);
419 ether_addr_copy(pwlanhdr->addr3, bssid);
421 SetSeqNum(pwlanhdr, 0);
422 SetFrameSubType(fctrl, WIFI_PROBERSP);
424 pktlen = sizeof(struct ieee80211_hdr_3addr);
427 if (cur_network->IELength > MAX_IE_SZ)
430 memcpy(pframe, cur_network->IEs, cur_network->IELength);
431 pframe += cur_network->IELength;
432 pktlen += cur_network->IELength;
438 /* Description: Fill the reserved packets that FW will use to RSVD page. */
439 /* Now we just send 4 types packet to rsvd page. */
440 /* (1)Beacon, (2)Ps-poll, (3)Null data, (4)ProbeRsp. */
442 /* bDLFinished - false: At the first time we will send all the packets as a large packet to Hw, */
443 /* so we need to set the packet length to total length. */
444 /* true: At the second time, we should send the first packet (default:beacon) */
445 /* to Hw again and set the length in descriptor to the real beacon length. */
446 /* 2009.10.15 by tynli. */
447 static void SetFwRsvdPagePkt(struct adapter *adapt, bool bDLFinished)
449 struct xmit_frame *pmgntframe;
450 struct pkt_attrib *pattrib;
451 struct xmit_priv *pxmitpriv;
452 struct mlme_ext_priv *pmlmeext;
453 struct mlme_ext_info *pmlmeinfo;
454 u32 BeaconLength = 0, ProbeRspLength = 0, PSPollLength;
455 u32 NullDataLength, QosNullLength;
456 u8 *ReservedPagePacket;
457 u8 PageNum, PageNeed, TxDescLen;
460 struct rsvdpage_loc RsvdPageLoc;
461 struct wlan_bssid_ex *pnetwork;
463 DBG_88E("%s\n", __func__);
464 ReservedPagePacket = kzalloc(1000, GFP_KERNEL);
465 if (!ReservedPagePacket) {
466 DBG_88E("%s: alloc ReservedPagePacket fail!\n", __func__);
470 pxmitpriv = &adapt->xmitpriv;
471 pmlmeext = &adapt->mlmeextpriv;
472 pmlmeinfo = &pmlmeext->mlmext_info;
473 pnetwork = &(pmlmeinfo->network);
475 TxDescLen = TXDESC_SIZE;
478 /* 3 (1) beacon * 2 pages */
479 BufIndex = TXDESC_OFFSET;
480 ConstructBeacon(adapt, &ReservedPagePacket[BufIndex], &BeaconLength);
482 /* When we count the first page size, we need to reserve description size for the RSVD */
483 /* packet, it will be filled in front of the packet in TXPKTBUF. */
484 PageNeed = (u8)PageNum_128(TxDescLen + BeaconLength);
485 /* To reserved 2 pages for beacon buffer. 2010.06.24. */
489 adapt->HalData->FwRsvdPageStartOffset = PageNum;
491 BufIndex += PageNeed*128;
493 /* 3 (2) ps-poll *1 page */
494 RsvdPageLoc.LocPsPoll = PageNum;
495 ConstructPSPoll(adapt, &ReservedPagePacket[BufIndex], &PSPollLength);
496 rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], PSPollLength, true, false);
498 PageNeed = (u8)PageNum_128(TxDescLen + PSPollLength);
501 BufIndex += PageNeed*128;
503 /* 3 (3) null data * 1 page */
504 RsvdPageLoc.LocNullData = PageNum;
505 ConstructNullFunctionData(adapt, &ReservedPagePacket[BufIndex], &NullDataLength, pnetwork->MacAddress, false, 0, 0, false);
506 rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], NullDataLength, false, false);
508 PageNeed = (u8)PageNum_128(TxDescLen + NullDataLength);
511 BufIndex += PageNeed*128;
513 /* 3 (4) probe response * 1page */
514 RsvdPageLoc.LocProbeRsp = PageNum;
515 ConstructProbeRsp(adapt, &ReservedPagePacket[BufIndex], &ProbeRspLength, pnetwork->MacAddress, false);
516 rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], ProbeRspLength, false, false);
518 PageNeed = (u8)PageNum_128(TxDescLen + ProbeRspLength);
521 BufIndex += PageNeed*128;
523 /* 3 (5) Qos null data */
524 RsvdPageLoc.LocQosNull = PageNum;
525 ConstructNullFunctionData(adapt, &ReservedPagePacket[BufIndex],
526 &QosNullLength, pnetwork->MacAddress, true, 0, 0, false);
527 rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], QosNullLength, false, false);
529 PageNeed = (u8)PageNum_128(TxDescLen + QosNullLength);
532 TotalPacketLen = BufIndex + QosNullLength;
533 pmgntframe = alloc_mgtxmitframe(pxmitpriv);
537 /* update attribute */
538 pattrib = &pmgntframe->attrib;
539 update_mgntframe_attrib(adapt, pattrib);
540 pattrib->qsel = 0x10;
541 pattrib->last_txcmdsz = TotalPacketLen - TXDESC_OFFSET;
542 pattrib->pktlen = pattrib->last_txcmdsz;
543 memcpy(pmgntframe->buf_addr, ReservedPagePacket, TotalPacketLen);
545 rtw_hal_mgnt_xmit(adapt, pmgntframe);
547 DBG_88E("%s: Set RSVD page location to Fw\n", __func__);
548 FillH2CCmd_88E(adapt, H2C_COM_RSVD_PAGE, sizeof(RsvdPageLoc), (u8 *)&RsvdPageLoc);
551 kfree(ReservedPagePacket);
554 void rtl8188e_set_FwJoinBssReport_cmd(struct adapter *adapt, u8 mstatus)
556 struct hal_data_8188e *haldata = adapt->HalData;
557 struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
558 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
559 bool bSendBeacon = false;
560 bool bcn_valid = false;
565 DBG_88E("%s mstatus(%x)\n", __func__, mstatus);
568 /* We should set AID, correct TSF, HW seq enable before set JoinBssReport to Fw in 88/92C. */
569 /* Suggested by filen. Added by tynli. */
570 usb_write16(adapt, REG_BCN_PSR_RPT, (0xC000|pmlmeinfo->aid));
571 /* Do not set TSF again here or vWiFi beacon DMA INT will not work. */
573 /* Set REG_CR bit 8. DMA beacon by SW. */
574 haldata->RegCR_1 |= BIT(0);
575 usb_write8(adapt, REG_CR+1, haldata->RegCR_1);
577 /* Disable Hw protection for a time which revserd for Hw sending beacon. */
578 /* Fix download reserved page packet fail that access collision with the protection time. */
579 /* 2010.05.11. Added by tynli. */
580 usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL)&(~BIT(3)));
581 usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL) | BIT(4));
583 if (haldata->RegFwHwTxQCtrl & BIT(6)) {
584 DBG_88E("HalDownloadRSVDPage(): There is an Adapter is sending beacon.\n");
588 /* Set FWHW_TXQ_CTRL 0x422[6]=0 to tell Hw the packet is not a real beacon frame. */
589 usb_write8(adapt, REG_FWHW_TXQ_CTRL+2, (haldata->RegFwHwTxQCtrl&(~BIT(6))));
590 haldata->RegFwHwTxQCtrl &= (~BIT(6));
592 /* Clear beacon valid check bit. */
593 rtw_hal_set_hwreg(adapt, HW_VAR_BCN_VALID, NULL);
597 /* download rsvd page. */
598 SetFwRsvdPagePkt(adapt, false);
603 /* check rsvd page download OK. */
604 rtw_hal_get_hwreg(adapt, HW_VAR_BCN_VALID, (u8 *)(&bcn_valid));
606 } while (!bcn_valid && (poll%10) != 0 && !adapt->bSurpriseRemoved && !adapt->bDriverStopped);
607 } while (!bcn_valid && DLBcnCount <= 100 && !adapt->bSurpriseRemoved && !adapt->bDriverStopped);
609 if (adapt->bSurpriseRemoved || adapt->bDriverStopped)
612 DBG_88E("%s: 1 Download RSVD page failed! DLBcnCount:%u, poll:%u\n", __func__, DLBcnCount, poll);
614 DBG_88E("%s: 1 Download RSVD success! DLBcnCount:%u, poll:%u\n", __func__, DLBcnCount, poll);
616 /* We just can send the reserved page twice during the time that Tx thread is stopped (e.g. pnpsetpower) */
617 /* because we need to free the Tx BCN Desc which is used by the first reserved page packet. */
618 /* At run time, we cannot get the Tx Desc until it is released in TxHandleInterrupt() so we will return */
619 /* the beacon TCB in the following code. 2011.11.23. by tynli. */
623 usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL) | BIT(3));
624 usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL)&(~BIT(4)));
626 /* To make sure that if there exists an adapter which would like to send beacon. */
627 /* If exists, the origianl value of 0x422[6] will be 1, we should check this to */
628 /* prevent from setting 0x422[6] to 0 after download reserved page, or it will cause */
629 /* the beacon cannot be sent by HW. */
630 /* 2010.06.23. Added by tynli. */
632 usb_write8(adapt, REG_FWHW_TXQ_CTRL+2, (haldata->RegFwHwTxQCtrl | BIT(6)));
633 haldata->RegFwHwTxQCtrl |= BIT(6);
636 /* Update RSVD page location H2C to Fw. */
638 rtw_hal_set_hwreg(adapt, HW_VAR_BCN_VALID, NULL);
639 DBG_88E("Set RSVD page location to Fw.\n");
642 /* Do not enable HW DMA BCN or it will cause Pcie interface hang by timing issue. 2011.11.24. by tynli. */
643 /* Clear CR[8] or beacon packet will not be send to TxBuf anymore. */
644 haldata->RegCR_1 &= (~BIT(0));
645 usb_write8(adapt, REG_CR+1, haldata->RegCR_1);