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realtek-rtl8188eus-dkms/hal/rtl8188e/usb/rtl8188eu_xmit.c

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/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* 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.
*
*****************************************************************************/
#define _RTL8188E_XMIT_C_
#include <drv_types.h>
#include <rtl8188e_hal.h>
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)
{
u8 blnSetTxDescOffset;
HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
blnSetTxDescOffset = (((sz + TXDESC_SIZE) % pHalData->UsbBulkOutSize) == 0) ? 1 : 0;
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,
u8 bDataFrame)
{
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 */
/* */
/* Encrypt the data frame if under security mode excepct null data. Suggested by CCW. */
/* */
if (_TRUE == bDataFrame) {
u32 EncAlg;
EncAlg = padapter->securitypriv.dot11PrivacyAlgrthm;
switch (EncAlg) {
case _NO_PRIVACY_:
SET_TX_DESC_SEC_TYPE_8188E(pDesc, 0x0);
break;
case _WEP40_:
case _WEP104_:
case _TKIP_:
SET_TX_DESC_SEC_TYPE_8188E(pDesc, 0x1);
break;
case _SMS4_:
SET_TX_DESC_SEC_TYPE_8188E(pDesc, 0x2);
break;
case _AES_:
SET_TX_DESC_SEC_TYPE_8188E(pDesc, 0x3);
break;
default:
SET_TX_DESC_SEC_TYPE_8188E(pDesc, 0x0);
break;
}
}
#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)
{
/* RTW_INFO("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 & 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)
{
/* RTW_INFO("bwmode=%d, ch_off=%d\n", pattrib->bwmode, pattrib->ch_offset); */
if (pattrib->ht_en) {
*pdw |= (pattrib->bwmode & 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;
bool sgi = 0;
u8 data_rate = 0, 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 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 */
#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 ((PACKET_OFFSET_SZ != 0) && (!bagg_pkt) && (rtw_usb_bulk_size_boundary(padapter, TXDESC_SIZE + sz) == _FALSE)) {
ptxdesc = (struct tx_desc *)(pmem + PACKET_OFFSET_SZ);
/* RTW_INFO("==> 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);
/* RTW_INFO("%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
/* RTW_INFO("%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 ((PACKET_OFFSET_SZ != 0) && (!bagg_pkt)) {
if ((pull) && (pxmitframe->pkt_offset > 0))
pxmitframe->pkt_offset = pxmitframe->pkt_offset - 1;
}
}
#endif
/* RTW_INFO("%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);
if ((pxmitframe->frame_tag & 0x0f) == DATA_FRAMETAG) {
/* RTW_INFO("pxmitframe->frame_tag == DATA_FRAMETAG\n"); */
/* offset 4 */
ptxdesc->txdw1 |= cpu_to_le32(pattrib->mac_id & 0x3F);
qsel = (uint)(pattrib->qsel & 0x0000001f);
/* RTW_INFO("==> 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 defined(CONFIG_CONCURRENT_MODE)
if (bmcst)
fill_txdesc_force_bmc_camid(pattrib, ptxdesc);
#endif
if (pattrib->ampdu_en == _TRUE) {
ptxdesc->txdw2 |= cpu_to_le32(AGG_EN);/* AGG EN */
ptxdesc->txdw2 |= (pattrib->ampdu_spacing << AMPDU_DENSITY_SHT) & 0x00700000;
/* 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) {
/* RTW_INFO("%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 (pHalData->fw_ractrl == _FALSE) {
/* driver-based RA*/
/* driver uses rate */
ptxdesc->txdw4 |= cpu_to_le32(USERATE);/* rate control always by driver */
if (pattrib->ht_en)
sgi = odm_ra_get_sgi_8188e(&pHalData->odmpriv, pattrib->mac_id);
data_rate = odm_ra_get_decision_rate_8188e(&pHalData->odmpriv, pattrib->mac_id);
#if (POWER_TRAINING_ACTIVE == 1)
pwr_status = odm_ra_get_hw_pwr_status_8188e(&pHalData->odmpriv, pattrib->mac_id);
ptxdesc->txdw4 |= cpu_to_le32((pwr_status & 0x7) << PWR_STATUS_SHT);
#endif
} else
#endif/* if (RATE_ADAPTIVE_SUPPORT == 1) */
{
/* FW-based RA, TODO */
if (pattrib->ht_en)
sgi = 1;
data_rate = 0x13; /* default rate: MCS7 */
}
if (bmcst) {
data_rate = MRateToHwRate(pattrib->rate);
ptxdesc->txdw4 |= cpu_to_le32(USERATE);
ptxdesc->txdw4 |= cpu_to_le32(DISDATAFB);
}
if (padapter->fix_rate != 0xFF) {
data_rate = padapter->fix_rate;
ptxdesc->txdw4 |= cpu_to_le32(USERATE);
if (!padapter->data_fb)
ptxdesc->txdw4 |= cpu_to_le32(DISDATAFB);
sgi = (padapter->fix_rate & BIT(7)) ? 1 : 0;
}
if (sgi)
ptxdesc->txdw5 |= cpu_to_le32(SGI);
ptxdesc->txdw5 |= cpu_to_le32(data_rate & 0x3F);
} 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. */
/* driver uses rate */
ptxdesc->txdw4 |= cpu_to_le32(USERATE);/* rate control always by driver */
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);
RTW_INFO("ptxdesc->txdw7 = %08x\n", ptxdesc->txdw7);
}
#endif
#ifdef CONFIG_TDLS
#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);
RTW_INFO("%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 */
#endif
} else if ((pxmitframe->frame_tag & 0x0f) == MGNT_FRAMETAG) {
/* RTW_INFO("pxmitframe->frame_tag == MGNT_FRAMETAG\n"); */
/* driver uses rate */
ptxdesc->txdw4 |= cpu_to_le32(USERATE);/* rate control always by driver */
/* 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);
RTW_INFO("%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 */
ptxdesc->txdw5 |= cpu_to_le32(MRateToHwRate(pattrib->rate));
} else if ((pxmitframe->frame_tag & 0x0f) == TXAGG_FRAMETAG)
RTW_INFO("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, (u8 *)ptxdesc);
#endif
else {
RTW_INFO("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_ANTENNA_DIVERSITY
if (!bmcst && pattrib->psta)
odm_set_tx_ant_by_tx_info(adapter_to_phydm(padapter), pmem, pattrib->psta->cmn.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) {
return _FAIL;
}
if (RTW_CANNOT_RUN(padapter)) {
RTW_DBG(FUNC_ADPT_FMT "- bDriverStopped(%s) bSurpriseRemoved(%s)\n",
FUNC_ADPT_ARG(padapter),
rtw_is_drv_stopped(padapter) ? "True" : "False",
rtw_is_surprise_removed(padapter) ? "True" : "False");
return _FAIL;
}
if (rtw_mi_check_pending_xmitbuf(padapter) == 0)
return _SUCCESS;
#ifdef CONFIG_LPS_LCLK
ret = rtw_register_tx_alive(padapter);
if (ret != _SUCCESS) {
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;
for (t = 0; t < pattrib->nr_frags; t++) {
if (inner_ret != _SUCCESS && ret == _SUCCESS)
ret = _FAIL;
if (t != (pattrib->nr_frags - 1)) {
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
/* RTW_INFO("%s: rtw_write_port size =%d\n", __func__,w_sz); */
inner_ret = rtw_write_port(padapter, ff_hwaddr, w_sz, (unsigned char *)pxmitbuf);
#endif
rtw_count_tx_stats(padapter, pxmitframe, sz);
/* RTW_INFO("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
#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;
_list *sta_plist, *sta_phead;
u8 single_sta_in_queue = _FALSE;
#ifndef IDEA_CONDITION
int res = _SUCCESS;
#endif
/* check xmitbuffer is ok */
if (pxmitbuf == NULL) {
pxmitbuf = rtw_alloc_xmitbuf(pxmitpriv);
if (pxmitbuf == NULL) {
/* RTW_INFO("%s #1, connot alloc xmitbuf!!!!\n",__FUNCTION__); */
return _FALSE;
}
}
/* RTW_INFO("%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 */
/* RTW_INFO("no more xmit frame ,return\n"); */
rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
return _FALSE;
}
#ifndef IDEA_CONDITION
if (pxmitframe->frame_tag != DATA_FRAMETAG) {
/* rtw_free_xmitframe(pxmitpriv, pxmitframe); */
continue;
}
/* TID 0~15 */
if ((pxmitframe->attrib.priority < 0) ||
(pxmitframe->attrib.priority > 15)) {
/* rtw_free_xmitframe(pxmitpriv, pxmitframe); */
continue;
}
#endif
/* RTW_INFO("==> 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 = (PACKET_OFFSET_SZ / 8) + 1; /* 2; */ /* first frame of aggregation, reserve one offset for EM info ,another for usb bulk-out block check */
#else
pxmitframe->pkt_offset = (PACKET_OFFSET_SZ / 8); /* 1; */ /* first frame of aggregation, reserve offset */
#endif
if (rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe) == _FALSE) {
RTW_INFO("%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 = rtw_wlan_pkt_size(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++;
if (descCount == pHalData->UsbTxAggDescNum)
goto agg_end;
} 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)
RTW_INFO("%s, pattrib->psta(%p) != psta(%p)\n", __func__, pfirstframe->attrib.psta, psta);
if (psta == NULL)
RTW_INFO("rtw_xmit_classifier: psta == NULL\n");
if (!(psta->state & _FW_LINKED))
RTW_INFO("%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;
}
/* RTW_INFO("==> 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);
sta_phead = get_list_head(phwxmit->sta_queue);
sta_plist = get_next(sta_phead);
single_sta_in_queue = rtw_end_of_queue_search(sta_phead, get_next(sta_plist));
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);
if (_FAIL == rtw_hal_busagg_qsel_check(padapter, pfirstframe->attrib.qsel, pxmitframe->attrib.qsel))
break;
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 = rtw_wlan_pkt_size(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 */
{
/* RTW_INFO("%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) {
rtw_free_xmitframe(pxmitpriv, pxmitframe);
continue;
}
/* TID 0~15 */
if ((pxmitframe->attrib.priority < 0) ||
(pxmitframe->attrib.priority > 15)) {
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) {
RTW_INFO("%s coalesce failed\n", __FUNCTION__);
rtw_free_xmitframe(pxmitpriv, pxmitframe);
continue;
}
/* RTW_INFO("==> 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);
else if (single_sta_in_queue == _FALSE) {
/* Re-arrange the order of stations in this ac queue to balance the service for these stations */
rtw_list_delete(&ptxservq->tx_pending);
rtw_list_insert_tail(&ptxservq->tx_pending, get_list_head(phwxmit->sta_queue));
}
_exit_critical_bh(&pxmitpriv->lock, &irqL);
agg_end:
#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 ((PACKET_OFFSET_SZ != 0) && ((pbuf_tail % bulkSize) == 0)) {
/* remove pkt_offset */
pbuf_tail -= PACKET_OFFSET_SZ;
pfirstframe->buf_addr += PACKET_OFFSET_SZ;
pfirstframe->pkt_offset--;
/* RTW_INFO("$$$$$ buf size equal to USB block size $$$$$$\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);
/* RTW_INFO("%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;
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);
/* RTW_INFO("==> pxmitframe->attrib.priority:%d\n",pxmitframe->attrib.priority); */
rtw_os_xmit_complete(padapter, pxmitframe);/* always return ndis_packet after rtw_xmitframe_coalesce */
}
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;
/* RTW_INFO("==> %s\n",__FUNCTION__); */
res = rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
if (res == _SUCCESS)
rtw_dump_xframe(padapter, pxmitframe);
else
RTW_INFO("==> %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;
_enter_critical_bh(&pxmitpriv->lock, &irqL);
/* RTW_INFO("==> %s\n",__FUNCTION__); */
if (rtw_txframes_sta_ac_pending(padapter, pattrib) > 0) {
/* RTW_INFO("enqueue AC(%d)\n",pattrib->priority); */
goto enqueue;
}
if (rtw_xmit_ac_blocked(padapter) == _TRUE)
goto enqueue;
if (DEV_STA_LG_NUM(padapter->dvobj))
goto enqueue;
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) {
rtw_free_xmitframe(pxmitpriv, pxmitframe);
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);
}
s32 rtl8188eu_hal_xmitframe_enqueue(_adapter *padapter, struct xmit_frame *pxmitframe)
{
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
s32 err;
err = rtw_xmitframe_enqueue(padapter, pxmitframe);
if (err != _SUCCESS) {
rtw_free_xmitframe(pxmitpriv, pxmitframe);
pxmitpriv->tx_drop++;
} else {
#ifdef PLATFORM_LINUX
tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
#endif
}
return err;
}
#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;
/* RTW_INFO("%s\n", __FUNCTION__); */
rtw_skb_free(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);
/* RTW_INFO("%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;
_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);
/* RTW_INFO("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);
#endif
return 0;
}
#endif
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