/****************************************************************************** * * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * ******************************************************************************/ #define _RTL8188E_CMD_C_ #include #include #include #include #include #include #define RTL88E_MAX_H2C_BOX_NUMS 4 #define RTL88E_MAX_CMD_LEN 7 #define RTL88E_MESSAGE_BOX_SIZE 4 #define RTL88E_EX_MESSAGE_BOX_SIZE 4 static u8 _is_fw_read_cmd_down(struct adapter *adapt, u8 msgbox_num) { u8 read_down = false; int retry_cnts = 100; u8 valid; do { valid = usb_read8(adapt, REG_HMETFR) & BIT(msgbox_num); if (0 == valid) read_down = true; } while ((!read_down) && (retry_cnts--)); return read_down; } /***************************************** * H2C Msg format : * 0x1DF - 0x1D0 *| 31 - 8 | 7-5 4 - 0 | *| h2c_msg |Class_ID CMD_ID | * * Extend 0x1FF - 0x1F0 *|31 - 0 | *|ext_msg| ******************************************/ static s32 FillH2CCmd_88E(struct adapter *adapt, u8 ElementID, u32 CmdLen, u8 *pCmdBuffer) { u8 bcmd_down = false; s32 retry_cnts = 100; u8 h2c_box_num; u32 msgbox_addr; u32 msgbox_ex_addr; struct hal_data_8188e *haldata = GET_HAL_DATA(adapt); u8 cmd_idx, ext_cmd_len; u32 h2c_cmd = 0; u32 h2c_cmd_ex = 0; s32 ret = _FAIL; if (!adapt->bFWReady) { DBG_88E("FillH2CCmd_88E(): return H2C cmd because fw is not ready\n"); return ret; } if (!pCmdBuffer) goto exit; if (CmdLen > RTL88E_MAX_CMD_LEN) goto exit; if (adapt->bSurpriseRemoved) goto exit; /* pay attention to if race condition happened in H2C cmd setting. */ do { h2c_box_num = haldata->LastHMEBoxNum; if (!_is_fw_read_cmd_down(adapt, h2c_box_num)) { DBG_88E(" fw read cmd failed...\n"); goto exit; } *(u8 *)(&h2c_cmd) = ElementID; if (CmdLen <= 3) { memcpy((u8 *)(&h2c_cmd)+1, pCmdBuffer, CmdLen); } else { memcpy((u8 *)(&h2c_cmd)+1, pCmdBuffer, 3); ext_cmd_len = CmdLen-3; memcpy((u8 *)(&h2c_cmd_ex), pCmdBuffer+3, ext_cmd_len); /* Write Ext command */ msgbox_ex_addr = REG_HMEBOX_EXT_0 + (h2c_box_num * RTL88E_EX_MESSAGE_BOX_SIZE); for (cmd_idx = 0; cmd_idx < ext_cmd_len; cmd_idx++) { usb_write8(adapt, msgbox_ex_addr+cmd_idx, *((u8 *)(&h2c_cmd_ex)+cmd_idx)); } } /* Write command */ msgbox_addr = REG_HMEBOX_0 + (h2c_box_num * RTL88E_MESSAGE_BOX_SIZE); for (cmd_idx = 0; cmd_idx < RTL88E_MESSAGE_BOX_SIZE; cmd_idx++) { usb_write8(adapt, msgbox_addr+cmd_idx, *((u8 *)(&h2c_cmd)+cmd_idx)); } bcmd_down = true; haldata->LastHMEBoxNum = (h2c_box_num+1) % RTL88E_MAX_H2C_BOX_NUMS; } while ((!bcmd_down) && (retry_cnts--)); ret = _SUCCESS; exit: return ret; } /* bitmap[0:27] = tx_rate_bitmap */ /* bitmap[28:31]= Rate Adaptive id */ /* arg[0:4] = macid */ /* arg[5] = Short GI */ void rtl8188e_Add_RateATid(struct adapter *pAdapter, u32 bitmap, u8 arg, u8 rssi_level) { struct hal_data_8188e *haldata = GET_HAL_DATA(pAdapter); u8 macid, init_rate, raid, shortGIrate = false; macid = arg&0x1f; raid = (bitmap>>28) & 0x0f; bitmap &= 0x0fffffff; if (rssi_level != DM_RATR_STA_INIT) bitmap = ODM_Get_Rate_Bitmap(&haldata->odmpriv, macid, bitmap, rssi_level); bitmap |= ((raid<<28)&0xf0000000); init_rate = get_highest_rate_idx(bitmap&0x0fffffff)&0x3f; shortGIrate = (arg & BIT(5)) ? true : false; if (shortGIrate) init_rate |= BIT(6); raid = (bitmap>>28) & 0x0f; bitmap &= 0x0fffffff; DBG_88E("%s=> mac_id:%d, raid:%d, ra_bitmap=0x%x, shortGIrate=0x%02x\n", __func__, macid, raid, bitmap, shortGIrate); ODM_RA_UpdateRateInfo_8188E(&(haldata->odmpriv), macid, raid, bitmap, shortGIrate); } void rtl8188e_set_FwPwrMode_cmd(struct adapter *adapt, u8 Mode) { struct setpwrmode_parm H2CSetPwrMode; struct pwrctrl_priv *pwrpriv = &adapt->pwrctrlpriv; u8 RLBM = 0; /* 0:Min, 1:Max, 2:User define */ DBG_88E("%s: Mode=%d SmartPS=%d UAPSD=%d\n", __func__, Mode, pwrpriv->smart_ps, adapt->registrypriv.uapsd_enable); switch (Mode) { case PS_MODE_ACTIVE: H2CSetPwrMode.Mode = 0; break; case PS_MODE_MIN: H2CSetPwrMode.Mode = 1; break; case PS_MODE_MAX: RLBM = 1; H2CSetPwrMode.Mode = 1; break; case PS_MODE_DTIM: RLBM = 2; H2CSetPwrMode.Mode = 1; break; case PS_MODE_UAPSD_WMM: H2CSetPwrMode.Mode = 2; break; default: H2CSetPwrMode.Mode = 0; break; } H2CSetPwrMode.SmartPS_RLBM = (((pwrpriv->smart_ps<<4)&0xf0) | (RLBM & 0x0f)); H2CSetPwrMode.AwakeInterval = 1; H2CSetPwrMode.bAllQueueUAPSD = adapt->registrypriv.uapsd_enable; if (Mode > 0) H2CSetPwrMode.PwrState = 0x00;/* AllON(0x0C), RFON(0x04), RFOFF(0x00) */ else H2CSetPwrMode.PwrState = 0x0C;/* AllON(0x0C), RFON(0x04), RFOFF(0x00) */ FillH2CCmd_88E(adapt, H2C_PS_PWR_MODE, sizeof(H2CSetPwrMode), (u8 *)&H2CSetPwrMode); } void rtl8188e_set_FwMediaStatus_cmd(struct adapter *adapt, __le16 mstatus_rpt) { u8 opmode, macid; u16 mst_rpt = le16_to_cpu(mstatus_rpt); opmode = (u8)mst_rpt; macid = (u8)(mst_rpt >> 8); DBG_88E("### %s: MStatus=%x MACID=%d\n", __func__, opmode, macid); FillH2CCmd_88E(adapt, H2C_COM_MEDIA_STATUS_RPT, sizeof(mst_rpt), (u8 *)&mst_rpt); } static void ConstructBeacon(struct adapter *adapt, u8 *pframe, u32 *pLength) { struct rtw_ieee80211_hdr *pwlanhdr; __le16 *fctrl; u32 rate_len, pktlen; struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv); struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); struct wlan_bssid_ex *cur_network = &(pmlmeinfo->network); u8 bc_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; pwlanhdr = (struct rtw_ieee80211_hdr *)pframe; fctrl = &(pwlanhdr->frame_ctl); *(fctrl) = 0; memcpy(pwlanhdr->addr1, bc_addr, ETH_ALEN); memcpy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)), ETH_ALEN); memcpy(pwlanhdr->addr3, cur_network->MacAddress, ETH_ALEN); SetSeqNum(pwlanhdr, 0/*pmlmeext->mgnt_seq*/); SetFrameSubType(pframe, WIFI_BEACON); pframe += sizeof(struct rtw_ieee80211_hdr_3addr); pktlen = sizeof(struct rtw_ieee80211_hdr_3addr); /* timestamp will be inserted by hardware */ pframe += 8; pktlen += 8; /* beacon interval: 2 bytes */ memcpy(pframe, (unsigned char *)(rtw_get_beacon_interval_from_ie(cur_network->IEs)), 2); pframe += 2; pktlen += 2; /* capability info: 2 bytes */ memcpy(pframe, (unsigned char *)(rtw_get_capability_from_ie(cur_network->IEs)), 2); pframe += 2; pktlen += 2; if ((pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE) { pktlen += cur_network->IELength - sizeof(struct ndis_802_11_fixed_ie); memcpy(pframe, cur_network->IEs+sizeof(struct ndis_802_11_fixed_ie), pktlen); goto _ConstructBeacon; } /* below for ad-hoc mode */ /* SSID */ pframe = rtw_set_ie(pframe, _SSID_IE_, cur_network->Ssid.SsidLength, cur_network->Ssid.Ssid, &pktlen); /* supported rates... */ rate_len = rtw_get_rateset_len(cur_network->SupportedRates); pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_, min_t(u32, rate_len, 8), cur_network->SupportedRates, &pktlen); /* DS parameter set */ pframe = rtw_set_ie(pframe, _DSSET_IE_, 1, (unsigned char *)&(cur_network->Configuration.DSConfig), &pktlen); if ((pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE) { u32 ATIMWindow; /* IBSS Parameter Set... */ ATIMWindow = 0; pframe = rtw_set_ie(pframe, _IBSS_PARA_IE_, 2, (unsigned char *)(&ATIMWindow), &pktlen); } /* todo: ERP IE */ /* EXTERNDED SUPPORTED RATE */ if (rate_len > 8) pframe = rtw_set_ie(pframe, _EXT_SUPPORTEDRATES_IE_, (rate_len - 8), (cur_network->SupportedRates + 8), &pktlen); /* todo:HT for adhoc */ _ConstructBeacon: if ((pktlen + TXDESC_SIZE) > 512) { DBG_88E("beacon frame too large\n"); return; } *pLength = pktlen; } static void ConstructPSPoll(struct adapter *adapt, u8 *pframe, u32 *pLength) { struct rtw_ieee80211_hdr *pwlanhdr; struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv); struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); __le16 *fctrl; struct wlan_bssid_ex *pnetwork = &(pmlmeinfo->network); pwlanhdr = (struct rtw_ieee80211_hdr *)pframe; /* Frame control. */ fctrl = &(pwlanhdr->frame_ctl); *(fctrl) = 0; SetPwrMgt(fctrl); SetFrameSubType(pframe, WIFI_PSPOLL); /* AID. */ SetDuration(pframe, (pmlmeinfo->aid | 0xc000)); /* BSSID. */ memcpy(pwlanhdr->addr1, pnetwork->MacAddress, ETH_ALEN); /* TA. */ memcpy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)), ETH_ALEN); *pLength = 16; } static void ConstructNullFunctionData(struct adapter *adapt, u8 *pframe, u32 *pLength, u8 *StaAddr, u8 bQoS, u8 AC, u8 bEosp, u8 bForcePowerSave) { struct rtw_ieee80211_hdr *pwlanhdr; __le16 *fctrl; u32 pktlen; struct mlme_priv *pmlmepriv = &adapt->mlmepriv; struct wlan_network *cur_network = &pmlmepriv->cur_network; struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv); struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); struct wlan_bssid_ex *pnetwork = &(pmlmeinfo->network); pwlanhdr = (struct rtw_ieee80211_hdr *)pframe; fctrl = &pwlanhdr->frame_ctl; *(fctrl) = 0; if (bForcePowerSave) SetPwrMgt(fctrl); switch (cur_network->network.InfrastructureMode) { case Ndis802_11Infrastructure: SetToDs(fctrl); memcpy(pwlanhdr->addr1, pnetwork->MacAddress, ETH_ALEN); memcpy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)), ETH_ALEN); memcpy(pwlanhdr->addr3, StaAddr, ETH_ALEN); break; case Ndis802_11APMode: SetFrDs(fctrl); memcpy(pwlanhdr->addr1, StaAddr, ETH_ALEN); memcpy(pwlanhdr->addr2, pnetwork->MacAddress, ETH_ALEN); memcpy(pwlanhdr->addr3, myid(&(adapt->eeprompriv)), ETH_ALEN); break; case Ndis802_11IBSS: default: memcpy(pwlanhdr->addr1, StaAddr, ETH_ALEN); memcpy(pwlanhdr->addr2, myid(&(adapt->eeprompriv)), ETH_ALEN); memcpy(pwlanhdr->addr3, pnetwork->MacAddress, ETH_ALEN); break; } SetSeqNum(pwlanhdr, 0); if (bQoS) { struct rtw_ieee80211_hdr_3addr_qos *pwlanqoshdr; SetFrameSubType(pframe, WIFI_QOS_DATA_NULL); pwlanqoshdr = (struct rtw_ieee80211_hdr_3addr_qos *)pframe; SetPriority(&pwlanqoshdr->qc, AC); SetEOSP(&pwlanqoshdr->qc, bEosp); pktlen = sizeof(struct rtw_ieee80211_hdr_3addr_qos); } else { SetFrameSubType(pframe, WIFI_DATA_NULL); pktlen = sizeof(struct rtw_ieee80211_hdr_3addr); } *pLength = pktlen; } static void ConstructProbeRsp(struct adapter *adapt, u8 *pframe, u32 *pLength, u8 *StaAddr, bool bHideSSID) { struct rtw_ieee80211_hdr *pwlanhdr; __le16 *fctrl; u8 *mac, *bssid; u32 pktlen; struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv); struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); struct wlan_bssid_ex *cur_network = &(pmlmeinfo->network); pwlanhdr = (struct rtw_ieee80211_hdr *)pframe; mac = myid(&(adapt->eeprompriv)); bssid = cur_network->MacAddress; fctrl = &(pwlanhdr->frame_ctl); *(fctrl) = 0; memcpy(pwlanhdr->addr1, StaAddr, ETH_ALEN); memcpy(pwlanhdr->addr2, mac, ETH_ALEN); memcpy(pwlanhdr->addr3, bssid, ETH_ALEN); SetSeqNum(pwlanhdr, 0); SetFrameSubType(fctrl, WIFI_PROBERSP); pktlen = sizeof(struct rtw_ieee80211_hdr_3addr); pframe += pktlen; if (cur_network->IELength > MAX_IE_SZ) return; memcpy(pframe, cur_network->IEs, cur_network->IELength); pframe += cur_network->IELength; pktlen += cur_network->IELength; *pLength = pktlen; } /* */ /* Description: Fill the reserved packets that FW will use to RSVD page. */ /* Now we just send 4 types packet to rsvd page. */ /* (1)Beacon, (2)Ps-poll, (3)Null data, (4)ProbeRsp. */ /* Input: */ /* bDLFinished - false: At the first time we will send all the packets as a large packet to Hw, */ /* so we need to set the packet length to total length. */ /* true: At the second time, we should send the first packet (default:beacon) */ /* to Hw again and set the length in descriptor to the real beacon length. */ /* 2009.10.15 by tynli. */ static void SetFwRsvdPagePkt(struct adapter *adapt, bool bDLFinished) { struct hal_data_8188e *haldata; struct xmit_frame *pmgntframe; struct pkt_attrib *pattrib; struct xmit_priv *pxmitpriv; struct mlme_ext_priv *pmlmeext; struct mlme_ext_info *pmlmeinfo; u32 BeaconLength = 0, ProbeRspLength = 0, PSPollLength; u32 NullDataLength, QosNullLength; u8 *ReservedPagePacket; u8 PageNum, PageNeed, TxDescLen; u16 BufIndex; u32 TotalPacketLen; struct rsvdpage_loc RsvdPageLoc; struct wlan_bssid_ex *pnetwork; DBG_88E("%s\n", __func__); ReservedPagePacket = kzalloc(1000, GFP_KERNEL); if (!ReservedPagePacket) { DBG_88E("%s: alloc ReservedPagePacket fail!\n", __func__); return; } haldata = GET_HAL_DATA(adapt); pxmitpriv = &adapt->xmitpriv; pmlmeext = &adapt->mlmeextpriv; pmlmeinfo = &pmlmeext->mlmext_info; pnetwork = &(pmlmeinfo->network); TxDescLen = TXDESC_SIZE; PageNum = 0; /* 3 (1) beacon * 2 pages */ BufIndex = TXDESC_OFFSET; ConstructBeacon(adapt, &ReservedPagePacket[BufIndex], &BeaconLength); /* When we count the first page size, we need to reserve description size for the RSVD */ /* packet, it will be filled in front of the packet in TXPKTBUF. */ PageNeed = (u8)PageNum_128(TxDescLen + BeaconLength); /* To reserved 2 pages for beacon buffer. 2010.06.24. */ if (PageNeed == 1) PageNeed += 1; PageNum += PageNeed; haldata->FwRsvdPageStartOffset = PageNum; BufIndex += PageNeed*128; /* 3 (2) ps-poll *1 page */ RsvdPageLoc.LocPsPoll = PageNum; ConstructPSPoll(adapt, &ReservedPagePacket[BufIndex], &PSPollLength); rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], PSPollLength, true, false); PageNeed = (u8)PageNum_128(TxDescLen + PSPollLength); PageNum += PageNeed; BufIndex += PageNeed*128; /* 3 (3) null data * 1 page */ RsvdPageLoc.LocNullData = PageNum; ConstructNullFunctionData(adapt, &ReservedPagePacket[BufIndex], &NullDataLength, pnetwork->MacAddress, false, 0, 0, false); rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], NullDataLength, false, false); PageNeed = (u8)PageNum_128(TxDescLen + NullDataLength); PageNum += PageNeed; BufIndex += PageNeed*128; /* 3 (4) probe response * 1page */ RsvdPageLoc.LocProbeRsp = PageNum; ConstructProbeRsp(adapt, &ReservedPagePacket[BufIndex], &ProbeRspLength, pnetwork->MacAddress, false); rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], ProbeRspLength, false, false); PageNeed = (u8)PageNum_128(TxDescLen + ProbeRspLength); PageNum += PageNeed; BufIndex += PageNeed*128; /* 3 (5) Qos null data */ RsvdPageLoc.LocQosNull = PageNum; ConstructNullFunctionData(adapt, &ReservedPagePacket[BufIndex], &QosNullLength, pnetwork->MacAddress, true, 0, 0, false); rtl8188e_fill_fake_txdesc(adapt, &ReservedPagePacket[BufIndex-TxDescLen], QosNullLength, false, false); PageNeed = (u8)PageNum_128(TxDescLen + QosNullLength); PageNum += PageNeed; TotalPacketLen = BufIndex + QosNullLength; pmgntframe = alloc_mgtxmitframe(pxmitpriv); if (!pmgntframe) goto exit; /* update attribute */ pattrib = &pmgntframe->attrib; update_mgntframe_attrib(adapt, pattrib); pattrib->qsel = 0x10; pattrib->last_txcmdsz = TotalPacketLen - TXDESC_OFFSET; pattrib->pktlen = pattrib->last_txcmdsz; memcpy(pmgntframe->buf_addr, ReservedPagePacket, TotalPacketLen); rtw_hal_mgnt_xmit(adapt, pmgntframe); DBG_88E("%s: Set RSVD page location to Fw\n", __func__); FillH2CCmd_88E(adapt, H2C_COM_RSVD_PAGE, sizeof(RsvdPageLoc), (u8 *)&RsvdPageLoc); exit: kfree(ReservedPagePacket); } void rtl8188e_set_FwJoinBssReport_cmd(struct adapter *adapt, u8 mstatus) { struct hal_data_8188e *haldata = GET_HAL_DATA(adapt); struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv); struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); bool bSendBeacon = false; bool bcn_valid = false; u8 DLBcnCount = 0; u32 poll = 0; DBG_88E("%s mstatus(%x)\n", __func__, mstatus); if (mstatus == 1) { /* We should set AID, correct TSF, HW seq enable before set JoinBssReport to Fw in 88/92C. */ /* Suggested by filen. Added by tynli. */ usb_write16(adapt, REG_BCN_PSR_RPT, (0xC000|pmlmeinfo->aid)); /* Do not set TSF again here or vWiFi beacon DMA INT will not work. */ /* Set REG_CR bit 8. DMA beacon by SW. */ haldata->RegCR_1 |= BIT(0); usb_write8(adapt, REG_CR+1, haldata->RegCR_1); /* Disable Hw protection for a time which revserd for Hw sending beacon. */ /* Fix download reserved page packet fail that access collision with the protection time. */ /* 2010.05.11. Added by tynli. */ usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL)&(~BIT(3))); usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL) | BIT(4)); if (haldata->RegFwHwTxQCtrl & BIT(6)) { DBG_88E("HalDownloadRSVDPage(): There is an Adapter is sending beacon.\n"); bSendBeacon = true; } /* Set FWHW_TXQ_CTRL 0x422[6]=0 to tell Hw the packet is not a real beacon frame. */ usb_write8(adapt, REG_FWHW_TXQ_CTRL+2, (haldata->RegFwHwTxQCtrl&(~BIT(6)))); haldata->RegFwHwTxQCtrl &= (~BIT(6)); /* Clear beacon valid check bit. */ rtw_hal_set_hwreg(adapt, HW_VAR_BCN_VALID, NULL); DLBcnCount = 0; poll = 0; do { /* download rsvd page. */ SetFwRsvdPagePkt(adapt, false); DLBcnCount++; do { yield(); /* mdelay(10); */ /* check rsvd page download OK. */ rtw_hal_get_hwreg(adapt, HW_VAR_BCN_VALID, (u8 *)(&bcn_valid)); poll++; } while (!bcn_valid && (poll%10) != 0 && !adapt->bSurpriseRemoved && !adapt->bDriverStopped); } while (!bcn_valid && DLBcnCount <= 100 && !adapt->bSurpriseRemoved && !adapt->bDriverStopped); if (adapt->bSurpriseRemoved || adapt->bDriverStopped) ; else if (!bcn_valid) DBG_88E("%s: 1 Download RSVD page failed! DLBcnCount:%u, poll:%u\n", __func__, DLBcnCount, poll); else DBG_88E("%s: 1 Download RSVD success! DLBcnCount:%u, poll:%u\n", __func__, DLBcnCount, poll); /* */ /* We just can send the reserved page twice during the time that Tx thread is stopped (e.g. pnpsetpower) */ /* because we need to free the Tx BCN Desc which is used by the first reserved page packet. */ /* At run time, we cannot get the Tx Desc until it is released in TxHandleInterrupt() so we will return */ /* the beacon TCB in the following code. 2011.11.23. by tynli. */ /* */ /* Enable Bcn */ usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL) | BIT(3)); usb_write8(adapt, REG_BCN_CTRL, usb_read8(adapt, REG_BCN_CTRL)&(~BIT(4))); /* To make sure that if there exists an adapter which would like to send beacon. */ /* If exists, the origianl value of 0x422[6] will be 1, we should check this to */ /* prevent from setting 0x422[6] to 0 after download reserved page, or it will cause */ /* the beacon cannot be sent by HW. */ /* 2010.06.23. Added by tynli. */ if (bSendBeacon) { usb_write8(adapt, REG_FWHW_TXQ_CTRL+2, (haldata->RegFwHwTxQCtrl | BIT(6))); haldata->RegFwHwTxQCtrl |= BIT(6); } /* Update RSVD page location H2C to Fw. */ if (bcn_valid) { rtw_hal_set_hwreg(adapt, HW_VAR_BCN_VALID, NULL); DBG_88E("Set RSVD page location to Fw.\n"); } /* Do not enable HW DMA BCN or it will cause Pcie interface hang by timing issue. 2011.11.24. by tynli. */ /* Clear CR[8] or beacon packet will not be send to TxBuf anymore. */ haldata->RegCR_1 &= (~BIT(0)); usb_write8(adapt, REG_CR+1, haldata->RegCR_1); } }