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rtl8188eu/hal/rtl8188eu_xmit.c
Larry Finger 85df502f5b Initial commit of flattened driver to repo 
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
2013-05-08 16:45:39 -05:00

1349 lines
36 KiB
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/******************************************************************************
*
* 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 <drv_conf.h>
#include <osdep_service.h>
#include <drv_types.h>
#include <rtw_byteorder.h>
#include <wifi.h>
#include <osdep_intf.h>
#include <circ_buf.h>
#include <usb_ops.h>
#include <rtl8188e_hal.h>
#if defined (PLATFORM_LINUX) && defined (PLATFORM_WINDOWS)
#error "Shall be Linux or Windows, but not both!\n"
#endif
s32 rtl8188eu_init_xmit_priv(_adapter *padapter)
{
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
#ifdef PLATFORM_LINUX
tasklet_init(&pxmitpriv->xmit_tasklet,
(void(*)(unsigned long))rtl8188eu_xmit_tasklet,
(unsigned long)padapter);
#endif
#ifdef CONFIG_TX_EARLY_MODE
pHalData->bEarlyModeEnable = padapter->registrypriv.early_mode;
#endif
return _SUCCESS;
}
void rtl8188eu_free_xmit_priv(_adapter *padapter)
{
}
u8 urb_zero_packet_chk(_adapter *padapter, int sz)
{
#if 1
u8 blnSetTxDescOffset;
HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
blnSetTxDescOffset = (((sz + TXDESC_SIZE) % pHalData->UsbBulkOutSize) ==0)?1:0;
#else
struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
if ( pdvobj->ishighspeed )
{
if ( ( (sz + TXDESC_SIZE) % 512 ) == 0 ) {
blnSetTxDescOffset = 1;
} else {
blnSetTxDescOffset = 0;
}
}
else
{
if ( ( (sz + TXDESC_SIZE) % 64 ) == 0 ) {
blnSetTxDescOffset = 1;
} else {
blnSetTxDescOffset = 0;
}
}
#endif
return blnSetTxDescOffset;
}
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(*(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(
PADAPTER padapter,
u8* pDesc,
u32 BufferLen,
u8 IsPsPoll,
u8 IsBTQosNull)
{
struct tx_desc *ptxdesc;
// Clear all status
ptxdesc = (struct tx_desc*)pDesc;
_rtw_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)<<OFFSET_SHT)&0x00ff0000); //32 bytes for TX Desc
ptxdesc->txdw0 |= cpu_to_le32(BufferLen&0x0000ffff); // Buffer size + command header
//offset 4
ptxdesc->txdw1 |= cpu_to_le32((QSLT_MGNT<<QSEL_SHT)&0x00001f00); // Fixed queue of Mgnt queue
//Set NAVUSEHDR to prevent Ps-poll AId filed to be changed to error vlaue by Hw.
if (IsPsPoll)
{
ptxdesc->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
#if defined(CONFIG_USB_HCI) || defined(CONFIG_SDIO_HCI)
// 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);
#endif
}
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<<SEC_TYPE_SHT)&0x00c00000);
ptxdesc->txdw2 |= cpu_to_le32(0x7 << AMPDU_DENSITY_SHT);
break;
case _TKIP_:
case _TKIP_WTMIC_:
ptxdesc->txdw1 |= cpu_to_le32((0x01<<SEC_TYPE_SHT)&0x00c00000);
ptxdesc->txdw2 |= cpu_to_le32(0x7 << AMPDU_DENSITY_SHT);
break;
#ifdef CONFIG_WAPI_SUPPORT
case _SMS4_:
ptxdesc->txdw1 |= cpu_to_le32((0x02<<SEC_TYPE_SHT)&0x00c00000);
ptxdesc->txdw2 |= cpu_to_le32(0x7 << AMPDU_DENSITY_SHT);
break;
#endif
case _AES_:
ptxdesc->txdw1 |= cpu_to_le32((0x03<<SEC_TYPE_SHT)&0x00c00000);
ptxdesc->txdw2 |= cpu_to_le32(0x7 << AMPDU_DENSITY_SHT);
break;
case _NO_PRIVACY_:
default:
break;
}
}
}
void fill_txdesc_vcs(struct pkt_attrib *pattrib, u32 *pdw)
{
//DBG_8192C("cvs_mode=%d\n", pattrib->vcs_mode);
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);
}
}
}
void fill_txdesc_phy(struct pkt_attrib *pattrib, u32 *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<<DATA_SC_SHT)&0x003f0000);
else if(pattrib->ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER)
*pdw |= cpu_to_le32((0x02<<DATA_SC_SHT)&0x003f0000);
else if(pattrib->ch_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE)
*pdw |= 0;
else
*pdw |= cpu_to_le32((0x03<<DATA_SC_SHT)&0x003f0000);
}
}
static s32 update_txdesc(struct xmit_frame *pxmitframe, u8 *pmem, s32 sz ,u8 bagg_pkt)
{
int pull=0;
uint qsel;
u8 data_rate,pwr_status,offset;
_adapter *padapter = pxmitframe->padapter;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
//struct dm_priv *pdmpriv = &pHalData->dmpriv;
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
#ifdef CONFIG_CONCURRENT_MODE
if(rtw_buddy_adapter_up(padapter) && padapter->adapter_type > PRIMARY_ADAPTER)
pHalData = GET_HAL_DATA(padapter->pbuddy_adapter);
#endif //CONFIG_CONCURRENT_MODE
#ifndef CONFIG_USE_USB_BUFFER_ALLOC_TX
if (padapter->registrypriv.mp_mode == 0)
{
if((!bagg_pkt) &&(urb_zero_packet_chk(padapter, sz)==0))//(sz %512) != 0
//if((!bagg_pkt) &&(rtw_usb_bulk_size_boundary(padapter,TXDESC_SIZE+sz)==_FALSE))
{
ptxdesc = (struct tx_desc *)(pmem+PACKET_OFFSET_SZ);
//DBG_8192C("==> non-agg-pkt,shift pointer...\n");
pull = 1;
}
}
#endif // CONFIG_USE_USB_BUFFER_ALLOC_TX
_rtw_memset(ptxdesc, 0, sizeof(struct tx_desc));
//4 offset 0
ptxdesc->txdw0 |= cpu_to_le32(OWN | FSG | LSG);
//DBG_8192C("%s==> pkt_len=%d,bagg_pkt=%02x\n",__FUNCTION__,sz,bagg_pkt);
ptxdesc->txdw0 |= cpu_to_le32(sz & 0x0000ffff);//update TXPKTSIZE
offset = TXDESC_SIZE + OFFSET_SZ;
#ifdef CONFIG_TX_EARLY_MODE
if(bagg_pkt){
offset += EARLY_MODE_INFO_SIZE ;//0x28
}
#endif
//DBG_8192C("%s==>offset(0x%02x) \n",__FUNCTION__,offset);
ptxdesc->txdw0 |= cpu_to_le32(((offset) << OFFSET_SHT) & 0x00ff0000);//32 bytes for TX Desc
if (bmcst) ptxdesc->txdw0 |= cpu_to_le32(BMC);
#ifndef CONFIG_USE_USB_BUFFER_ALLOC_TX
if (padapter->registrypriv.mp_mode == 0)
{
if(!bagg_pkt){
if((pull) && (pxmitframe->pkt_offset>0)) {
pxmitframe->pkt_offset = pxmitframe->pkt_offset -1;
}
}
}
#endif
//DBG_8192C("%s, pkt_offset=0x%02x\n",__FUNCTION__,pxmitframe->pkt_offset);
// 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
//SET_TX_DESC_MAX_AGG_NUM_88E(pDesc, 0x1F);
//SET_TX_DESC_MCSG1_MAX_LEN_88E(pDesc, 0x6);
//SET_TX_DESC_MCSG2_MAX_LEN_88E(pDesc, 0x6);
//SET_TX_DESC_MCSG3_MAX_LEN_88E(pDesc, 0x6);
//SET_TX_DESC_MCS7_SGI_MAX_LEN_88E(pDesc, 0x6);
ptxdesc->txdw6 = 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
#ifdef CONFIG_USB_TX_AGGREGATION
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);
}
#endif
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);
ptxdesc->txdw5 |= cpu_to_le32(data_rate & 0x3F);
//for debug
#if 0
if(padapter->fix_rate!= 0xFF){
ptxdesc->datarate = padapter->fix_rate;
}
#endif
#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->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));
}
#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
//offset 24
if ( pattrib->hw_tcp_csum == 1 ) {
// ptxdesc->txdw6 = 0; // clear TCP_CHECKSUM and IP_CHECKSUM. It's zero already!!
u8 ip_hdr_offset = 32 + pattrib->hdrlen + pattrib->iv_len + 8;
ptxdesc->txdw7 = (1 << 31) | (ip_hdr_offset << 16);
DBG_8192C("ptxdesc->txdw7 = %08x\n", ptxdesc->txdw7);
}
#endif
}
else if((pxmitframe->frame_tag&0x0f)== MGNT_FRAMETAG)
{
//DBG_8192C("pxmitframe->frame_tag == MGNT_FRAMETAG\n");
//offset 4
ptxdesc->txdw1 |= cpu_to_le32(pattrib->mac_id&0x3f);
qsel = (uint)(pattrib->qsel&0x0000001f);
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);
//offset 8
#ifdef CONFIG_XMIT_ACK
//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));
}
#endif //CONFIG_XMIT_ACK
//offset 12
ptxdesc->txdw3 |= cpu_to_le32((pattrib->seqnum<<SEQ_SHT)&0x0FFF0000);
//offset 20
ptxdesc->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");
}
#ifdef CONFIG_MP_INCLUDED
else if(((pxmitframe->frame_tag&0x0f) == MP_FRAMETAG) &&
(padapter->registrypriv.mp_mode == 1))
{
fill_txdesc_for_mp(padapter, ptxdesc);
}
#endif
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<<SEQ_SHT)&0x0fff0000);
//offset 20
ptxdesc->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->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.
ptxdesc->txdw3 |= cpu_to_le32(EN_HWSEQ); // Hw set sequence number
ptxdesc->txdw4 |= cpu_to_le32(HW_SSN); // Hw set sequence number
}
#ifdef CONFIG_HW_ANTENNA_DIVERSITY //CONFIG_ANTENNA_DIVERSITY
ODM_SetTxAntByTxInfo_88E(&pHalData->odmpriv, pmem, pattrib->mac_id);
#endif
rtl8188eu_cal_txdesc_chksum(ptxdesc);
_dbg_dump_tx_info(padapter,pxmitframe->frame_tag,ptxdesc);
return pull;
}
#ifdef CONFIG_XMIT_THREAD_MODE
/*
* Description
* Transmit xmitbuf to hardware tx fifo
*
* Return
* _SUCCESS ok
* _FAIL something error
*/
s32 rtl8188eu_xmit_buf_handler(PADAPTER padapter)
{
//PHAL_DATA_TYPE phal;
struct xmit_priv *pxmitpriv;
struct xmit_buf *pxmitbuf;
s32 ret;
//phal = GET_HAL_DATA(padapter);
pxmitpriv = &padapter->xmitpriv;
ret = _rtw_down_sema(&pxmitpriv->xmit_sema);
if (_FAIL == ret) {
RT_TRACE(_module_hal_xmit_c_, _drv_emerg_,
("%s: down SdioXmitBufSema fail!\n", __FUNCTION__));
return _FAIL;
}
ret = (padapter->bDriverStopped == _TRUE) || (padapter->bSurpriseRemoved == _TRUE);
if (ret) {
RT_TRACE(_module_hal_xmit_c_, _drv_notice_,
("%s: bDriverStopped(%d) bSurpriseRemoved(%d)!\n",
__FUNCTION__, padapter->bDriverStopped, padapter->bSurpriseRemoved));
return _FAIL;
}
if(check_pending_xmitbuf(pxmitpriv) == _FALSE)
return _SUCCESS;
#ifdef CONFIG_LPS_LCLK
ret = rtw_register_tx_alive(padapter);
if (ret != _SUCCESS) {
RT_TRACE(_module_hal_xmit_c_, _drv_notice_,
("%s: wait to leave LPS_LCLK\n", __FUNCTION__));
return _SUCCESS;
}
#endif
do {
pxmitbuf = dequeue_pending_xmitbuf(pxmitpriv);
if (pxmitbuf == NULL) break;
rtw_write_port(padapter, pxmitbuf->ff_hwaddr, pxmitbuf->len, (unsigned char*)pxmitbuf);
} while (1);
#ifdef CONFIG_LPS_LCLK
rtw_unregister_tx_alive(padapter);
#endif
return _SUCCESS;
}
#endif
#ifdef CONFIG_IOL_IOREG_CFG_DBG
#include <rtw_iol.h>
#endif
//for non-agg data frame or management frame
static s32 rtw_dump_xframe(_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;
#ifdef CONFIG_80211N_HT
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);
}
#endif //CONFIG_80211N_HT
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;
}
#ifdef CONFIG_IOL_IOREG_CFG_DBG
rtw_IOL_cmd_buf_dump(padapter,w_sz,pxmitframe->buf_addr);
#endif
ff_hwaddr = rtw_get_ff_hwaddr(pxmitframe);
#ifdef CONFIG_XMIT_THREAD_MODE
pxmitbuf->len = w_sz;
pxmitbuf->ff_hwaddr = ff_hwaddr;
enqueue_pending_xmitbuf(pxmitpriv, pxmitbuf);
#else
inner_ret = rtw_write_port(padapter, ff_hwaddr, w_sz, (unsigned char*)pxmitbuf);
#endif
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;
}
#ifdef CONFIG_USB_TX_AGGREGATION
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(_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;
_irqL irqL;
_list *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.
#ifdef CONFIG_TX_EARLY_MODE
pxmitframe->pkt_offset = 2; // first frame of aggregation, reserve one offset for EM info ,another for usb bulk-out block check
#else
pxmitframe->pkt_offset = 1; // first frame of aggregation, reserve offset
#endif
#ifdef IDEA_CONDITION
rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
#else
res = rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
if (res == _FALSE) {
// rtw_free_xmitframe(pxmitpriv, pxmitframe);
continue;
}
#endif
// 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;
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 );
_enter_critical_bh(&pxmitpriv->lock, &irqL);
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
#ifdef CONFIG_TX_EARLY_MODE
pxmitframe->pkt_offset = 1;// not first frame of aggregation,reserve offset for EM Info
#else
pxmitframe->pkt_offset = 0; // not first frame of aggregation, no need to reserve offset
#endif
len = xmitframe_need_length(pxmitframe) + TXDESC_SIZE +(pxmitframe->pkt_offset*PACKET_OFFSET_SZ);
if (_RND8(pbuf + len) > MAX_XMITBUF_SZ)
//if (_RND8(pbuf + len) > (MAX_XMITBUF_SZ/2))//to do : for TX TP finial tune , Georgia 2012-0323
{
//DBG_8192C("%s....len> MAX_XMITBUF_SZ\n",__FUNCTION__);
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;
#ifdef IDEA_CONDITION
rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
#else
res = rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
if (res == _FALSE) {
DBG_871X("%s coalesce failed \n",__FUNCTION__);
rtw_free_xmitframe(pxmitpriv, pxmitframe);
continue;
}
#endif
//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++;
#ifdef CONFIG_TX_EARLY_MODE
pxmitpriv->agg_pkt[pfirstframe->agg_num-1].offset = _RND8(len);
pxmitpriv->agg_pkt[pfirstframe->agg_num-1].pkt_len = pxmitframe->attrib.last_txcmdsz;
#endif
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);
_exit_critical_bh(&pxmitpriv->lock, &irqL);
#ifdef CONFIG_80211N_HT
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);
}
#endif //CONFIG_80211N_HT
#ifndef CONFIG_USE_USB_BUFFER_ALLOC_TX
//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--;
//DBG_8192C("$$$$$ buf size equal to USB block size $$$$$$\n");
}
#endif // CONFIG_USE_USB_BUFFER_ALLOC_TX
update_txdesc(pfirstframe, pfirstframe->buf_addr, pfirstframe->attrib.last_txcmdsz,_TRUE);
#ifdef CONFIG_TX_EARLY_MODE
//prepare EM info for first frame, agg_num value start from 1
pxmitpriv->agg_pkt[0].offset = _RND8(pfirstframe->attrib.last_txcmdsz +TXDESC_SIZE +(pfirstframe->pkt_offset*PACKET_OFFSET_SZ));
pxmitpriv->agg_pkt[0].pkt_len = pfirstframe->attrib.last_txcmdsz;//get from rtw_xmitframe_coalesce
UpdateEarlyModeInfo8188E(pxmitpriv,pxmitbuf );
#endif
//3 4. write xmit buffer to USB FIFO
ff_hwaddr = rtw_get_ff_hwaddr(pfirstframe);
//DBG_8192C("%s ===================================== write port,buf_size(%d) \n",__FUNCTION__,pbuf_tail);
// 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;
}
#else
s32 rtl8188eu_xmitframe_complete(_adapter *padapter, struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
{
struct hw_xmit *phwxmits;
sint hwentry;
struct xmit_frame *pxmitframe=NULL;
int res=_SUCCESS, xcnt = 0;
phwxmits = pxmitpriv->hwxmits;
hwentry = pxmitpriv->hwxmit_entry;
RT_TRACE(_module_rtl871x_xmit_c_,_drv_info_,("xmitframe_complete()\n"));
if(pxmitbuf==NULL)
{
pxmitbuf = rtw_alloc_xmitbuf(pxmitpriv);
if(!pxmitbuf)
{
return _FALSE;
}
}
do
{
pxmitframe = rtw_dequeue_xframe(pxmitpriv, phwxmits, hwentry);
if(pxmitframe)
{
pxmitframe->pxmitbuf = pxmitbuf;
pxmitframe->buf_addr = pxmitbuf->pbuf;
pxmitbuf->priv_data = pxmitframe;
if((pxmitframe->frame_tag&0x0f) == DATA_FRAMETAG)
{
if(pxmitframe->attrib.priority<=15)//TID0~15
{
res = rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
}
//DBG_8192C("==> pxmitframe->attrib.priority:%d\n",pxmitframe->attrib.priority);
rtw_os_xmit_complete(padapter, pxmitframe);//always return ndis_packet after rtw_xmitframe_coalesce
}
RT_TRACE(_module_rtl871x_xmit_c_,_drv_info_,("xmitframe_complete(): rtw_dump_xframe\n"));
if(res == _SUCCESS)
{
rtw_dump_xframe(padapter, pxmitframe);
}
else
{
rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
rtw_free_xmitframe(pxmitpriv, pxmitframe);
}
xcnt++;
}
else
{
rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
return _FALSE;
}
break;
}while(0/*xcnt < (NR_XMITFRAME >> 3)*/);
return _TRUE;
}
#endif
static s32 xmitframe_direct(_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(_adapter *padapter, struct xmit_frame *pxmitframe)
{
_irqL 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;
#ifdef CONFIG_CONCURRENT_MODE
PADAPTER pbuddy_adapter = padapter->pbuddy_adapter;
struct mlme_priv *pbuddy_mlmepriv = &(pbuddy_adapter->mlmepriv);
#endif
_enter_critical_bh(&pxmitpriv->lock, &irqL);
//DBG_8192C("==> %s \n",__FUNCTION__);
if (rtw_txframes_sta_ac_pending(padapter, pattrib) > 0)
{
//DBG_8192C("enqueue AC(%d)\n",pattrib->priority);
goto enqueue;
}
if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) == _TRUE)
goto enqueue;
#ifdef CONFIG_CONCURRENT_MODE
if (check_fwstate(pbuddy_mlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) == _TRUE)
goto enqueue;
#endif
pxmitbuf = rtw_alloc_xmitbuf(pxmitpriv);
if (pxmitbuf == NULL)
goto enqueue;
_exit_critical_bh(&pxmitpriv->lock, &irqL);
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);
_exit_critical_bh(&pxmitpriv->lock, &irqL);
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(_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(_adapter *padapter, struct xmit_frame *pxmitframe)
{
return pre_xmitframe(padapter, pxmitframe);
}
#ifdef CONFIG_HOSTAPD_MLME
static void rtl8188eu_hostap_mgnt_xmit_cb(struct urb *urb)
{
#ifdef PLATFORM_LINUX
struct sk_buff *skb = (struct sk_buff *)urb->context;
//DBG_8192C("%s\n", __FUNCTION__);
dev_kfree_skb_any(skb);
#endif
}
s32 rtl8188eu_hostap_mgnt_xmit_entry(_adapter *padapter, _pkt *pkt)
{
#ifdef PLATFORM_LINUX
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;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) // http://www.mail-archive.com/netdev@vger.kernel.org/msg17214.html
pxmit_skb = dev_alloc_skb(len + TXDESC_SIZE);
#else
pxmit_skb = netdev_alloc_skb(pnetdev, len + TXDESC_SIZE);
#endif
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;
_rtw_memset(ptxdesc, 0, sizeof(*ptxdesc));
//offset 0
ptxdesc->txdw0 |= cpu_to_le32(len&0x0000ffff);
ptxdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE+OFFSET_SZ)<<OFFSET_SHT)&0x00ff0000);//default = 32 bytes for TX Desc
ptxdesc->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<<QSEL_SHT)&0x00001f00);
ptxdesc->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;
_rtw_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:
dev_kfree_skb_any(skb);
#endif
return 0;
}
#endif
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