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rtl8188eu/hal/rtl8188eu_xmit.c
Larry Finger dfe35fb489 rtl8188eu: Remove CONFIG_USB_VENDOR_REQ_MUTEX - not selected 
This change made include/drv_conf.h and core/rtw_ioctl_query.c redundant.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
2013-07-21 13:00:05 -05:00

807 lines
22 KiB
C
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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 <osdep_service.h>
#include <drv_types.h>
#include <wifi.h>
#include <osdep_intf.h>
#include <circ_buf.h>
#include <usb_ops.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);
tasklet_init(&pxmitpriv->xmit_tasklet,
(void(*)(unsigned long))rtl8188eu_xmit_tasklet,
(unsigned long)padapter);
return _SUCCESS;
}
void rtl8188eu_free_xmit_priv(_adapter *padapter)
{
}
static 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;
}
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(
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 */
/* 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<<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;
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;
}
}
}
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)
{
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 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))/* sz %512) != 0 */ {
ptxdesc = (struct tx_desc *)(pmem+PACKET_OFFSET_SZ);
pull = 1;
}
}
_rtw_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)
{
/* 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);
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){
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);
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->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<<QSEL_SHT)&0x00001f00);
ptxdesc->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_88E("%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<<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(pmlmeext->tx_rate));
}
else if ((pxmitframe->frame_tag&0x0f) == TXAGG_FRAMETAG)
{
DBG_88E("pxmitframe->frame_tag == TXAGG_FRAMETAG\n");
}
else if (((pxmitframe->frame_tag&0x0f) == MP_FRAMETAG) &&
(padapter->registrypriv.mp_mode == 1))
{
fill_txdesc_for_mp(padapter, ptxdesc);
}
else
{
DBG_88E("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->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(_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 */
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));
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;
}
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;
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){
return false;
}
}
/* 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_free_xmitbuf(pxmitpriv, pxmitbuf);
return false;
}
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 */
rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
/* 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;
}
_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 */
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--;
pxmitframe->buf_addr = pxmitbuf->pbuf + pbuf;
rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
/* 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);
_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 */
/* 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);
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(_adapter *padapter, struct xmit_frame *pxmitframe)
{
s32 res = _SUCCESS;
res = rtw_xmitframe_coalesce(padapter, pxmitframe->pkt, pxmitframe);
if (res == _SUCCESS) {
rtw_dump_xframe(padapter, pxmitframe);
}
else{
DBG_88E("==> %s xmitframe_coalsece failed\n",__func__);
}
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);
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;
_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);
}
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