/****************************************************************************** * * 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_XMIT_C_ #include #include #include #include #include #include #include #include s32 rtl8188eu_init_xmit_priv(struct adapter *padapter) { struct xmit_priv *pxmitpriv = &padapter->xmitpriv; HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter); tasklet_init(&pxmitpriv->xmit_tasklet, (void(*)(unsigned long))rtl8188eu_xmit_tasklet, (unsigned long)padapter); return _SUCCESS; } void rtl8188eu_free_xmit_priv(struct adapter *padapter) { } static u8 urb_zero_packet_chk(struct adapter *padapter, int sz) { u8 blnSetTxDescOffset; HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter); blnSetTxDescOffset = (((sz + TXDESC_SIZE) % pHalData->UsbBulkOutSize) ==0)?1:0; return blnSetTxDescOffset; } static void rtl8188eu_cal_txdesc_chksum(struct tx_desc *ptxdesc) { u16 *usPtr = (u16*)ptxdesc; u32 count = 16; /* (32 bytes / 2 bytes per XOR) => 16 times */ u32 index; u16 checksum = 0; /* Clear first */ ptxdesc->txdw7 &= cpu_to_le32(0xffff0000); for(index = 0 ; index < count ; index++){ checksum = checksum ^ le16_to_cpu(*(__le16 *)(usPtr + index)); } ptxdesc->txdw7 |= cpu_to_le32(0x0000ffff&checksum); } /* */ /* Description: In normal chip, we should send some packet to Hw which will be used by Fw */ /* in FW LPS mode. The function is to fill the Tx descriptor of this packets, then */ /* Fw can tell Hw to send these packet derectly. */ /* */ void rtl8188e_fill_fake_txdesc( struct adapter *padapter, u8* pDesc, u32 BufferLen, u8 IsPsPoll, u8 IsBTQosNull) { struct tx_desc *ptxdesc; /* Clear all status */ ptxdesc = (struct tx_desc*)pDesc; memset(pDesc, 0, TXDESC_SIZE); /* offset 0 */ ptxdesc->txdw0 |= cpu_to_le32( OWN | FSG | LSG); /* own, bFirstSeg, bLastSeg; */ ptxdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE+OFFSET_SZ)<txdw0 |= cpu_to_le32(BufferLen&0x0000ffff); /* Buffer size + command header */ /* offset 4 */ ptxdesc->txdw1 |= cpu_to_le32((QSLT_MGNT<txdw1 |= cpu_to_le32(NAVUSEHDR); } else { ptxdesc->txdw4 |= cpu_to_le32(BIT(7)); /* Hw set sequence number */ ptxdesc->txdw3 |= cpu_to_le32((8 <<28)); /* set bit3 to 1. Suugested by TimChen. 2009.12.29. */ } if (true == IsBTQosNull) { ptxdesc->txdw2 |= cpu_to_le32(BIT(23)); /* BT NULL */ } /* offset 16 */ ptxdesc->txdw4 |= cpu_to_le32(BIT(8));/* driver uses rate */ /* USB interface drop packet if the checksum of descriptor isn't correct. */ /* Using this checksum can let hardware recovery from packet bulk out error (e.g. Cancel URC, Bulk out error.). */ rtl8188eu_cal_txdesc_chksum(ptxdesc); } static void fill_txdesc_sectype(struct pkt_attrib *pattrib, struct tx_desc *ptxdesc) { if ((pattrib->encrypt > 0) && !pattrib->bswenc) { switch (pattrib->encrypt) { /* SEC_TYPE : 0:NO_ENC,1:WEP40/TKIP,2:WAPI,3:AES */ case _WEP40_: case _WEP104_: ptxdesc->txdw1 |= cpu_to_le32((0x01<txdw2 |= cpu_to_le32(0x7 << AMPDU_DENSITY_SHT); break; case _TKIP_: case _TKIP_WTMIC_: ptxdesc->txdw1 |= cpu_to_le32((0x01<txdw2 |= cpu_to_le32(0x7 << AMPDU_DENSITY_SHT); break; case _AES_: ptxdesc->txdw1 |= cpu_to_le32((0x03<txdw2 |= cpu_to_le32(0x7 << AMPDU_DENSITY_SHT); break; case _NO_PRIVACY_: default: break; } } } static void fill_txdesc_vcs(struct pkt_attrib *pattrib, __le32 *pdw) { switch(pattrib->vcs_mode) { case RTS_CTS: *pdw |= cpu_to_le32(RTS_EN); break; case CTS_TO_SELF: *pdw |= cpu_to_le32(CTS_2_SELF); break; case NONE_VCS: default: break; } if (pattrib->vcs_mode) { *pdw |= cpu_to_le32(HW_RTS_EN); /* Set RTS BW */ if (pattrib->ht_en) { *pdw |= (pattrib->bwmode&HT_CHANNEL_WIDTH_40)? cpu_to_le32(BIT(27)):0; if (pattrib->ch_offset == HAL_PRIME_CHNL_OFFSET_LOWER) *pdw |= cpu_to_le32((0x01<<28)&0x30000000); else if (pattrib->ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER) *pdw |= cpu_to_le32((0x02<<28)&0x30000000); else if (pattrib->ch_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE) *pdw |= 0; else *pdw |= cpu_to_le32((0x03<<28)&0x30000000); } } } static void fill_txdesc_phy(struct pkt_attrib *pattrib, __le32 *pdw) { /* DBG_8192C("bwmode=%d, ch_off=%d\n", pattrib->bwmode, pattrib->ch_offset); */ if (pattrib->ht_en) { *pdw |= (pattrib->bwmode&HT_CHANNEL_WIDTH_40)? cpu_to_le32(BIT(25)):0; if (pattrib->ch_offset == HAL_PRIME_CHNL_OFFSET_LOWER) *pdw |= cpu_to_le32((0x01<ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER) *pdw |= cpu_to_le32((0x02<ch_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE) *pdw |= 0; else *pdw |= cpu_to_le32((0x03<padapter; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; struct pkt_attrib *pattrib = &pxmitframe->attrib; HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter); struct tx_desc *ptxdesc = (struct tx_desc *)pmem; struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); sint bmcst = IS_MCAST(pattrib->ra); #ifdef CONFIG_P2P struct wifidirect_info* pwdinfo = &padapter->wdinfo; #endif /* CONFIG_P2P */ if (padapter->registrypriv.mp_mode == 0) { if ((!bagg_pkt) &&(urb_zero_packet_chk(padapter, sz)==0)) { ptxdesc = (struct tx_desc *)(pmem+PACKET_OFFSET_SZ); pull = 1; } } memset(ptxdesc, 0, sizeof(struct tx_desc)); /* 4 offset 0 */ ptxdesc->txdw0 |= cpu_to_le32(OWN | FSG | LSG); ptxdesc->txdw0 |= cpu_to_le32(sz & 0x0000ffff);/* update TXPKTSIZE */ offset = TXDESC_SIZE + OFFSET_SZ; ptxdesc->txdw0 |= cpu_to_le32(((offset) << OFFSET_SHT) & 0x00ff0000);/* 32 bytes for TX Desc */ if (bmcst) ptxdesc->txdw0 |= cpu_to_le32(BMC); if (padapter->registrypriv.mp_mode == 0) { if (!bagg_pkt) { if ((pull) && (pxmitframe->pkt_offset>0)) pxmitframe->pkt_offset = pxmitframe->pkt_offset -1; } } /* pkt_offset, unit:8 bytes padding */ if (pxmitframe->pkt_offset > 0) ptxdesc->txdw1 |= cpu_to_le32((pxmitframe->pkt_offset << 26) & 0x7c000000); /* driver uses rate */ ptxdesc->txdw4 |= cpu_to_le32(USERATE);/* rate control always by driver */ if ((pxmitframe->frame_tag&0x0f) == DATA_FRAMETAG) { /* DBG_8192C("pxmitframe->frame_tag == DATA_FRAMETAG\n"); */ /* offset 4 */ ptxdesc->txdw1 |= cpu_to_le32(pattrib->mac_id&0x3F); qsel = (uint)(pattrib->qsel & 0x0000001f); /* DBG_8192C("==> macid(%d) qsel:0x%02x\n",pattrib->mac_id,qsel); */ ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00); ptxdesc->txdw1 |= cpu_to_le32((pattrib->raid<< RATE_ID_SHT) & 0x000F0000); fill_txdesc_sectype(pattrib, ptxdesc); if (pattrib->ampdu_en==true){ ptxdesc->txdw2 |= cpu_to_le32(AGG_EN);/* AGG EN */ ptxdesc->txdw6 = cpu_to_le32(0x6666f800); } else{ ptxdesc->txdw2 |= cpu_to_le32(AGG_BK);/* AGG BK */ } /* offset 8 */ /* offset 12 */ ptxdesc->txdw3 |= cpu_to_le32((pattrib->seqnum<< SEQ_SHT)&0x0FFF0000); /* offset 16 , offset 20 */ if (pattrib->qos_en) ptxdesc->txdw4 |= cpu_to_le32(QOS);/* QoS */ /* offset 20 */ if (pxmitframe->agg_num > 1){ /* DBG_8192C("%s agg_num:%d\n",__FUNCTION__,pxmitframe->agg_num ); */ ptxdesc->txdw5 |= cpu_to_le32((pxmitframe->agg_num << USB_TXAGG_NUM_SHT) & 0xFF000000); } if ((pattrib->ether_type != 0x888e) && (pattrib->ether_type != 0x0806) && (pattrib->ether_type != 0x88b4) && (pattrib->dhcp_pkt != 1)) { /* Non EAP & ARP & DHCP type data packet */ fill_txdesc_vcs(pattrib, &ptxdesc->txdw4); fill_txdesc_phy(pattrib, &ptxdesc->txdw4); ptxdesc->txdw4 |= cpu_to_le32(0x00000008);/* RTS Rate=24M */ ptxdesc->txdw5 |= cpu_to_le32(0x0001ff00);/* DATA/RTS Rate FB LMT */ #if (RATE_ADAPTIVE_SUPPORT == 1) if (pattrib->ht_en){ if ( ODM_RA_GetShortGI_8188E(&pHalData->odmpriv,pattrib->mac_id)) ptxdesc->txdw5 |= cpu_to_le32(SGI);/* SGI */ } data_rate =ODM_RA_GetDecisionRate_8188E(&pHalData->odmpriv,pattrib->mac_id); /* for debug */ if (padapter->fix_rate!= 0xFF){ data_rate = padapter->fix_rate; ptxdesc->txdw4 |= cpu_to_le32(DISDATAFB); } ptxdesc->txdw5 |= cpu_to_le32(data_rate & 0x3F); #if (POWER_TRAINING_ACTIVE==1) pwr_status = ODM_RA_GetHwPwrStatus_8188E(&pHalData->odmpriv,pattrib->mac_id); ptxdesc->txdw4 |=cpu_to_le32( (pwr_status & 0x7)<< PWR_STATUS_SHT); #endif /* POWER_TRAINING_ACTIVE==1) */ #else/* if (RATE_ADAPTIVE_SUPPORT == 1) */ if (pattrib->ht_en) ptxdesc->txdw5 |= cpu_to_le32(SGI);/* SGI */ data_rate = 0x13; /* default rate: MCS7 */ if (padapter->fix_rate!= 0xFF){/* rate control by iwpriv */ data_rate = padapter->fix_rate; ptxdesc->txdw4 | cpu_to_le32(DISDATAFB); } ptxdesc->txdw5 |= cpu_to_le32(data_rate & 0x3F); #endif/* if (RATE_ADAPTIVE_SUPPORT == 1) */ } else { /* EAP data packet and ARP packet and DHCP. */ /* Use the 1M data rate to send the EAP/ARP packet. */ /* This will maybe make the handshake smooth. */ ptxdesc->txdw2 |= cpu_to_le32(AGG_BK);/* AGG BK */ if (pmlmeinfo->preamble_mode == PREAMBLE_SHORT) ptxdesc->txdw4 |= cpu_to_le32(BIT(24));/* DATA_SHORT */ ptxdesc->txdw5 |= cpu_to_le32(MRateToHwRate(pmlmeext->tx_rate)); } } else if ((pxmitframe->frame_tag&0x0f)== MGNT_FRAMETAG) { /* offset 4 */ ptxdesc->txdw1 |= cpu_to_le32(pattrib->mac_id&0x3f); qsel = (uint)(pattrib->qsel&0x0000001f); ptxdesc->txdw1 |= cpu_to_le32((qsel<txdw1 |= cpu_to_le32((pattrib->raid<< RATE_ID_SHT) & 0x000f0000); /* offset 8 */ /* CCX-TXRPT ack for xmit mgmt frames. */ if (pxmitframe->ack_report) { #ifdef DBG_CCX static u16 ccx_sw = 0x123; ptxdesc->txdw7 |= cpu_to_le32(((ccx_sw)<<16)&0x0fff0000); DBG_871X("%s set ccx, sw:0x%03x\n", __func__, ccx_sw); ccx_sw = (ccx_sw+1)%0xfff; #endif ptxdesc->txdw2 |= cpu_to_le32(BIT(19)); } /* offset 12 */ ptxdesc->txdw3 |= cpu_to_le32((pattrib->seqnum<txdw5 |= cpu_to_le32(RTY_LMT_EN);/* retry limit enable */ if (pattrib->retry_ctrl == true) ptxdesc->txdw5 |= cpu_to_le32(0x00180000);/* retry limit = 6 */ else ptxdesc->txdw5 |= cpu_to_le32(0x00300000);/* retry limit = 12 */ #ifdef CONFIG_INTEL_PROXIM if ((padapter->proximity.proxim_on==true)&&(pattrib->intel_proxim==true)){ DBG_871X("\n %s pattrib->rate=%d\n",__FUNCTION__,pattrib->rate); ptxdesc->txdw5 |= cpu_to_le32( pattrib->rate); } else #endif { ptxdesc->txdw5 |= cpu_to_le32(MRateToHwRate(pmlmeext->tx_rate)); } } else if ((pxmitframe->frame_tag&0x0f) == TXAGG_FRAMETAG) { DBG_8192C("pxmitframe->frame_tag == TXAGG_FRAMETAG\n"); } else { DBG_8192C("pxmitframe->frame_tag = %d\n", pxmitframe->frame_tag); /* offset 4 */ ptxdesc->txdw1 |= cpu_to_le32((4)&0x3f);/* CAM_ID(MAC_ID) */ ptxdesc->txdw1 |= cpu_to_le32((6<< RATE_ID_SHT) & 0x000f0000);/* raid */ /* offset 8 */ /* offset 12 */ ptxdesc->txdw3 |= cpu_to_le32((pattrib->seqnum<txdw5 |= cpu_to_le32(MRateToHwRate(pmlmeext->tx_rate)); } /* 2009.11.05. tynli_test. Suggested by SD4 Filen for FW LPS. */ /* (1) The sequence number of each non-Qos frame / broadcast / multicast / */ /* mgnt frame should be controled by Hw because Fw will also send null data */ /* which we cannot control when Fw LPS enable. */ /* --> default enable non-Qos data sequense number. 2010.06.23. by tynli. */ /* (2) Enable HW SEQ control for beacon packet, because we use Hw beacon. */ /* (3) Use HW Qos SEQ to control the seq num of Ext port non-Qos packets. */ /* 2010.06.23. Added by tynli. */ if (!pattrib->qos_en) { ptxdesc->txdw3 |= cpu_to_le32(EN_HWSEQ); /* Hw set sequence number */ ptxdesc->txdw4 |= cpu_to_le32(HW_SSN); /* Hw set sequence number */ } ODM_SetTxAntByTxInfo_88E(&pHalData->odmpriv, pmem, pattrib->mac_id); rtl8188eu_cal_txdesc_chksum(ptxdesc); _dbg_dump_tx_info(padapter,pxmitframe->frame_tag,ptxdesc); return pull; } /* for non-agg data frame or management frame */ static s32 rtw_dump_xframe(struct adapter *padapter, struct xmit_frame *pxmitframe) { s32 ret = _SUCCESS; s32 inner_ret = _SUCCESS; int t, sz, w_sz, pull=0; u8 *mem_addr; u32 ff_hwaddr; struct xmit_buf *pxmitbuf = pxmitframe->pxmitbuf; struct pkt_attrib *pattrib = &pxmitframe->attrib; struct xmit_priv *pxmitpriv = &padapter->xmitpriv; struct security_priv *psecuritypriv = &padapter->securitypriv; if ((pxmitframe->frame_tag == DATA_FRAMETAG) && (pxmitframe->attrib.ether_type != 0x0806) && (pxmitframe->attrib.ether_type != 0x888e) && (pxmitframe->attrib.ether_type != 0x88b4) && (pxmitframe->attrib.dhcp_pkt != 1)) rtw_issue_addbareq_cmd(padapter, pxmitframe); mem_addr = pxmitframe->buf_addr; RT_TRACE(_module_rtl871x_xmit_c_,_drv_info_,("rtw_dump_xframe()\n")); for (t = 0; t < pattrib->nr_frags; t++) { if (inner_ret != _SUCCESS && ret == _SUCCESS) ret = _FAIL; if (t != (pattrib->nr_frags - 1)) { RT_TRACE(_module_rtl871x_xmit_c_,_drv_err_,("pattrib->nr_frags=%d\n", pattrib->nr_frags)); sz = pxmitpriv->frag_len; sz = sz - 4 - (psecuritypriv->sw_encrypt ? 0 : pattrib->icv_len); } else /* no frag */ { sz = pattrib->last_txcmdsz; } pull = update_txdesc(pxmitframe, mem_addr, sz, false); if (pull) { mem_addr += PACKET_OFFSET_SZ; /* pull txdesc head */ /* pxmitbuf ->pbuf = mem_addr; */ pxmitframe->buf_addr = mem_addr; w_sz = sz + TXDESC_SIZE; } else { w_sz = sz + TXDESC_SIZE + PACKET_OFFSET_SZ; } ff_hwaddr = rtw_get_ff_hwaddr(pxmitframe); inner_ret = rtw_write_port(padapter, ff_hwaddr, w_sz, (unsigned char*)pxmitbuf); rtw_count_tx_stats(padapter, pxmitframe, sz); RT_TRACE(_module_rtl871x_xmit_c_,_drv_info_,("rtw_write_port, w_sz=%d\n", w_sz)); /* DBG_8192C("rtw_write_port, w_sz=%d, sz=%d, txdesc_sz=%d, tid=%d\n", w_sz, sz, w_sz-sz, pattrib->priority); */ mem_addr += w_sz; mem_addr = (u8 *)RND4(((SIZE_PTR)(mem_addr))); } rtw_free_xmitframe(pxmitpriv, pxmitframe); if (ret != _SUCCESS) rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_UNKNOWN); return ret; } static u32 xmitframe_need_length(struct xmit_frame *pxmitframe) { struct pkt_attrib *pattrib = &pxmitframe->attrib; u32 len = 0; /* no consider fragement */ len = pattrib->hdrlen + pattrib->iv_len + SNAP_SIZE + sizeof(u16) + pattrib->pktlen + ((pattrib->bswenc) ? pattrib->icv_len : 0); if (pattrib->encrypt ==_TKIP_) len += 8; return len; } #define IDEA_CONDITION 1 /* check all packets before enqueue */ s32 rtl8188eu_xmitframe_complete(struct adapter *padapter, struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf) { HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter); struct xmit_frame *pxmitframe = NULL; struct xmit_frame *pfirstframe = NULL; /* aggregate variable */ struct hw_xmit *phwxmit; struct sta_info *psta = NULL; struct tx_servq *ptxservq = NULL; unsigned long irqL; struct list_head *xmitframe_plist = NULL, *xmitframe_phead = NULL; u32 pbuf; /* next pkt address */ u32 pbuf_tail; /* last pkt tail */ u32 len; /* packet length, except TXDESC_SIZE and PKT_OFFSET */ u32 bulkSize = pHalData->UsbBulkOutSize; u8 descCount; u32 bulkPtr; /* dump frame variable */ u32 ff_hwaddr; #ifndef IDEA_CONDITION int res = _SUCCESS; #endif RT_TRACE(_module_rtl8192c_xmit_c_, _drv_info_, ("+xmitframe_complete\n")); /* check xmitbuffer is ok */ if (pxmitbuf == NULL) { pxmitbuf = rtw_alloc_xmitbuf(pxmitpriv); if (pxmitbuf == NULL){ /* DBG_871X("%s #1, connot alloc xmitbuf!!!!\n",__FUNCTION__); */ return false; } } /* DBG_8192C("%s =====================================\n",__FUNCTION__); */ /* 3 1. pick up first frame */ do { rtw_free_xmitframe(pxmitpriv, pxmitframe); pxmitframe = rtw_dequeue_xframe(pxmitpriv, pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry); if (pxmitframe == NULL) { /* no more xmit frame, release xmit buffer */ /* DBG_8192C("no more xmit frame ,return\n"); */ rtw_free_xmitbuf(pxmitpriv, pxmitbuf); return false; } #ifndef IDEA_CONDITION if (pxmitframe->frame_tag != DATA_FRAMETAG) { RT_TRACE(_module_rtl8192c_xmit_c_, _drv_err_, ("xmitframe_complete: frame tag(%d) is not DATA_FRAMETAG(%d)!\n", pxmitframe->frame_tag, DATA_FRAMETAG)); /* rtw_free_xmitframe(pxmitpriv, pxmitframe); */ continue; } /* TID 0~15 */ if ((pxmitframe->attrib.priority < 0) || (pxmitframe->attrib.priority > 15)) { RT_TRACE(_module_rtl8192c_xmit_c_, _drv_err_, ("xmitframe_complete: TID(%d) should be 0~15!\n", pxmitframe->attrib.priority)); /* rtw_free_xmitframe(pxmitpriv, pxmitframe); */ continue; } #endif /* DBG_8192C("==> pxmitframe->attrib.priority:%d\n",pxmitframe->attrib.priority); */ pxmitframe->pxmitbuf = pxmitbuf; pxmitframe->buf_addr = pxmitbuf->pbuf; pxmitbuf->priv_data = pxmitframe; pxmitframe->agg_num = 1; /* alloc xmitframe should assign to 1. */ pxmitframe->pkt_offset = 1; /* first frame of aggregation, reserve offset */ if (rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe) == false) { DBG_871X("%s coalesce 1st xmitframe failed\n",__FUNCTION__); continue; } /* always return ndis_packet after rtw_xmitframe_coalesce */ rtw_os_xmit_complete(padapter, pxmitframe); break; } while (1); /* 3 2. aggregate same priority and same DA(AP or STA) frames */ pfirstframe = pxmitframe; len = xmitframe_need_length(pfirstframe) + TXDESC_SIZE+(pfirstframe->pkt_offset*PACKET_OFFSET_SZ); pbuf_tail = len; pbuf = _RND8(pbuf_tail); /* check pkt amount in one bulk */ descCount = 0; bulkPtr = bulkSize; if (pbuf < bulkPtr) descCount++; else { descCount = 0; bulkPtr = ((pbuf / bulkSize) + 1) * bulkSize; /* round to next bulkSize */ } /* dequeue same priority packet from station tx queue */ /* psta = pfirstframe->attrib.psta; */ psta = rtw_get_stainfo(&padapter->stapriv, pfirstframe->attrib.ra); if (pfirstframe->attrib.psta != psta){ DBG_871X("%s, pattrib->psta(%p) != psta(%p)\n", __func__, pfirstframe->attrib.psta, psta); } if (psta == NULL) { DBG_8192C("rtw_xmit_classifier: psta == NULL\n"); } if (!(psta->state &_FW_LINKED)){ DBG_871X("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, psta->state); } switch (pfirstframe->attrib.priority) { case 1: case 2: ptxservq = &(psta->sta_xmitpriv.bk_q); phwxmit = pxmitpriv->hwxmits + 3; break; case 4: case 5: ptxservq = &(psta->sta_xmitpriv.vi_q); phwxmit = pxmitpriv->hwxmits + 1; break; case 6: case 7: ptxservq = &(psta->sta_xmitpriv.vo_q); phwxmit = pxmitpriv->hwxmits; break; case 0: case 3: default: ptxservq = &(psta->sta_xmitpriv.be_q); phwxmit = pxmitpriv->hwxmits + 2; break; } /* DBG_8192C("==> pkt_no=%d,pkt_len=%d,len=%d,RND8_LEN=%d,pkt_offset=0x%02x\n", */ /* pxmitframe->agg_num,pxmitframe->attrib.last_txcmdsz,len,pbuf,pxmitframe->pkt_offset ); */ spin_lock_bh(&pxmitpriv->lock); xmitframe_phead = get_list_head(&ptxservq->sta_pending); xmitframe_plist = get_next(xmitframe_phead); while (rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist) == false) { pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list); xmitframe_plist = get_next(xmitframe_plist); pxmitframe->agg_num = 0; /* not first frame of aggregation */ pxmitframe->pkt_offset = 0; /* not first frame of aggregation, no need to reserve offset */ len = xmitframe_need_length(pxmitframe) + TXDESC_SIZE +(pxmitframe->pkt_offset*PACKET_OFFSET_SZ); if (_RND8(pbuf + len) > MAX_XMITBUF_SZ) { pxmitframe->agg_num = 1; pxmitframe->pkt_offset = 1; break; } rtw_list_delete(&pxmitframe->list); ptxservq->qcnt--; phwxmit->accnt--; #ifndef IDEA_CONDITION /* suppose only data frames would be in queue */ if (pxmitframe->frame_tag != DATA_FRAMETAG) { RT_TRACE(_module_rtl8192c_xmit_c_, _drv_err_, ("xmitframe_complete: frame tag(%d) is not DATA_FRAMETAG(%d)!\n", pxmitframe->frame_tag, DATA_FRAMETAG)); rtw_free_xmitframe(pxmitpriv, pxmitframe); continue; } /* TID 0~15 */ if ((pxmitframe->attrib.priority < 0) || (pxmitframe->attrib.priority > 15)) { RT_TRACE(_module_rtl8192c_xmit_c_, _drv_err_, ("xmitframe_complete: TID(%d) should be 0~15!\n", pxmitframe->attrib.priority)); rtw_free_xmitframe(pxmitpriv, pxmitframe); continue; } #endif /* pxmitframe->pxmitbuf = pxmitbuf; */ pxmitframe->buf_addr = pxmitbuf->pbuf + pbuf; if (rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe) == false) { DBG_871X("%s coalesce failed\n",__FUNCTION__); rtw_free_xmitframe(pxmitpriv, pxmitframe); continue; } /* DBG_8192C("==> pxmitframe->attrib.priority:%d\n",pxmitframe->attrib.priority); */ /* always return ndis_packet after rtw_xmitframe_coalesce */ rtw_os_xmit_complete(padapter, pxmitframe); /* (len - TXDESC_SIZE) == pxmitframe->attrib.last_txcmdsz */ update_txdesc(pxmitframe, pxmitframe->buf_addr, pxmitframe->attrib.last_txcmdsz,true); /* don't need xmitframe any more */ rtw_free_xmitframe(pxmitpriv, pxmitframe); /* handle pointer and stop condition */ pbuf_tail = pbuf + len; pbuf = _RND8(pbuf_tail); pfirstframe->agg_num++; if (MAX_TX_AGG_PACKET_NUMBER == pfirstframe->agg_num) break; if (pbuf < bulkPtr) { descCount++; if (descCount == pHalData->UsbTxAggDescNum) break; } else { descCount = 0; bulkPtr = ((pbuf / bulkSize) + 1) * bulkSize; } }/* end while ( aggregate same priority and same DA(AP or STA) frames) */ if (_rtw_queue_empty(&ptxservq->sta_pending) == true) rtw_list_delete(&ptxservq->tx_pending); spin_unlock_bh(&pxmitpriv->lock); if ((pfirstframe->attrib.ether_type != 0x0806) && (pfirstframe->attrib.ether_type != 0x888e) && (pfirstframe->attrib.ether_type != 0x88b4) && (pfirstframe->attrib.dhcp_pkt != 1)) { rtw_issue_addbareq_cmd(padapter, pfirstframe); } /* 3 3. update first frame txdesc */ if ((pbuf_tail % bulkSize) == 0) { /* remove pkt_offset */ pbuf_tail -= PACKET_OFFSET_SZ; pfirstframe->buf_addr += PACKET_OFFSET_SZ; pfirstframe->pkt_offset--; } update_txdesc(pfirstframe, pfirstframe->buf_addr, pfirstframe->attrib.last_txcmdsz,true); /* 3 4. write xmit buffer to USB FIFO */ ff_hwaddr = rtw_get_ff_hwaddr(pfirstframe); /* xmit address == ((xmit_frame*)pxmitbuf->priv_data)->buf_addr */ rtw_write_port(padapter, ff_hwaddr, pbuf_tail, (u8*)pxmitbuf); /* 3 5. update statisitc */ pbuf_tail -= (pfirstframe->agg_num * TXDESC_SIZE); pbuf_tail -= (pfirstframe->pkt_offset * PACKET_OFFSET_SZ); rtw_count_tx_stats(padapter, pfirstframe, pbuf_tail); rtw_free_xmitframe(pxmitpriv, pfirstframe); return true; } static s32 xmitframe_direct(struct adapter *padapter, struct xmit_frame *pxmitframe) { s32 res = _SUCCESS; /* DBG_8192C("==> %s\n",__FUNCTION__); */ res = rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe); if (res == _SUCCESS) { rtw_dump_xframe(padapter, pxmitframe); } else{ DBG_8192C("==> %s xmitframe_coalsece failed\n",__FUNCTION__); } return res; } /* * Return * true dump packet directly * false enqueue packet */ static s32 pre_xmitframe(struct adapter *padapter, struct xmit_frame *pxmitframe) { unsigned long irqL; s32 res; struct xmit_buf *pxmitbuf = NULL; struct xmit_priv *pxmitpriv = &padapter->xmitpriv; struct pkt_attrib *pattrib = &pxmitframe->attrib; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; spin_lock_bh(&pxmitpriv->lock); if (rtw_txframes_sta_ac_pending(padapter, pattrib) > 0) goto enqueue; if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) == true) goto enqueue; pxmitbuf = rtw_alloc_xmitbuf(pxmitpriv); if (pxmitbuf == NULL) goto enqueue; spin_unlock_bh(&pxmitpriv->lock); pxmitframe->pxmitbuf = pxmitbuf; pxmitframe->buf_addr = pxmitbuf->pbuf; pxmitbuf->priv_data = pxmitframe; if (xmitframe_direct(padapter, pxmitframe) != _SUCCESS) { rtw_free_xmitbuf(pxmitpriv, pxmitbuf); rtw_free_xmitframe(pxmitpriv, pxmitframe); } return true; enqueue: res = rtw_xmitframe_enqueue(padapter, pxmitframe); spin_unlock_bh(&pxmitpriv->lock); if (res != _SUCCESS) { RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("pre_xmitframe: enqueue xmitframe fail\n")); rtw_free_xmitframe(pxmitpriv, pxmitframe); /* Trick, make the statistics correct */ pxmitpriv->tx_pkts--; pxmitpriv->tx_drop++; return true; } return false; } s32 rtl8188eu_mgnt_xmit(struct adapter *padapter, struct xmit_frame *pmgntframe) { return rtw_dump_xframe(padapter, pmgntframe); } /* * Return * true dump packet directly ok * false temporary can't transmit packets to hardware */ s32 rtl8188eu_hal_xmit(struct adapter *padapter, struct xmit_frame *pxmitframe) { return pre_xmitframe(padapter, pxmitframe); } s32 rtl8188eu_hal_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe) { struct xmit_priv *pxmitpriv = &padapter->xmitpriv; s32 err; if ((err=rtw_xmitframe_enqueue(padapter, pxmitframe)) != _SUCCESS) { rtw_free_xmitframe(pxmitpriv, pxmitframe); /* Trick, make the statistics correct */ pxmitpriv->tx_pkts--; pxmitpriv->tx_drop++; } else { tasklet_hi_schedule(&pxmitpriv->xmit_tasklet); } return err; } #ifdef CONFIG_HOSTAPD_MLME static void rtl8188eu_hostap_mgnt_xmit_cb(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *)urb->context; /* DBG_8192C("%s\n", __FUNCTION__); */ rtw_skb_free(skb); } s32 rtl8188eu_hostap_mgnt_xmit_entry(struct adapter *padapter, _pkt *pkt) { u16 fc; int rc, len, pipe; unsigned int bmcst, tid, qsel; struct sk_buff *skb, *pxmit_skb; struct urb *urb; unsigned char *pxmitbuf; struct tx_desc *ptxdesc; struct rtw_ieee80211_hdr *tx_hdr; struct hostapd_priv *phostapdpriv = padapter->phostapdpriv; struct net_device *pnetdev = padapter->pnetdev; HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter); struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter); /* DBG_8192C("%s\n", __FUNCTION__); */ skb = pkt; len = skb->len; tx_hdr = (struct rtw_ieee80211_hdr *)(skb->data); fc = le16_to_cpu(tx_hdr->frame_ctl); bmcst = IS_MCAST(tx_hdr->addr1); if ((fc & RTW_IEEE80211_FCTL_FTYPE) != RTW_IEEE80211_FTYPE_MGMT) goto _exit; pxmit_skb = rtw_skb_alloc(len + TXDESC_SIZE); if (!pxmit_skb) goto _exit; pxmitbuf = pxmit_skb->data; urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) { goto _exit; } /* ----- fill tx desc ----- */ ptxdesc = (struct tx_desc *)pxmitbuf; memset(ptxdesc, 0, sizeof(*ptxdesc)); /* offset 0 */ ptxdesc->txdw0 |= cpu_to_le32(len&0x0000ffff); ptxdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE+OFFSET_SZ)<txdw0 |= cpu_to_le32(OWN | FSG | LSG); if (bmcst) { ptxdesc->txdw0 |= cpu_to_le32(BIT(24)); } /* offset 4 */ ptxdesc->txdw1 |= cpu_to_le32(0x00);/* MAC_ID */ ptxdesc->txdw1 |= cpu_to_le32((0x12<txdw1 |= cpu_to_le32((0x06<< 16) & 0x000f0000);/* b mode */ /* offset 8 */ /* offset 12 */ ptxdesc->txdw3 |= cpu_to_le32((le16_to_cpu(tx_hdr->seq_ctl)<<16)&0xffff0000); /* offset 16 */ ptxdesc->txdw4 |= cpu_to_le32(BIT(8));/* driver uses rate */ /* offset 20 */ /* HW append seq */ ptxdesc->txdw4 |= cpu_to_le32(BIT(7)); /* Hw set sequence number */ ptxdesc->txdw3 |= cpu_to_le32((8 <<28)); /* set bit3 to 1. Suugested by TimChen. 2009.12.29. */ rtl8188eu_cal_txdesc_chksum(ptxdesc); /* ----- end of fill tx desc ----- */ /* */ skb_put(pxmit_skb, len + TXDESC_SIZE); pxmitbuf = pxmitbuf + TXDESC_SIZE; memcpy(pxmitbuf, skb->data, len); /* DBG_8192C("mgnt_xmit, len=%x\n", pxmit_skb->len); */ /* ----- prepare urb for submit ----- */ /* translate DMA FIFO addr to pipehandle */ /* pipe = ffaddr2pipehdl(pdvobj, MGT_QUEUE_INX); */ pipe = usb_sndbulkpipe(pdvobj->pusbdev, pHalData->Queue2EPNum[(u8)MGT_QUEUE_INX]&0x0f); usb_fill_bulk_urb(urb, pdvobj->pusbdev, pipe, pxmit_skb->data, pxmit_skb->len, rtl8192cu_hostap_mgnt_xmit_cb, pxmit_skb); urb->transfer_flags |= URB_ZERO_PACKET; usb_anchor_urb(urb, &phostapdpriv->anchored); rc = usb_submit_urb(urb, GFP_ATOMIC); if (rc < 0) { usb_unanchor_urb(urb); kfree_skb(skb); } usb_free_urb(urb); _exit: rtw_skb_free(skb); return 0; } #endif