1 files changed, 704 insertions, 0 deletions

diff --git a/drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/usb_ops_linux.c b/drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/usb_ops_linux.c
new file mode 100755
index 000000000000..948e3cd540d6
--- /dev/null
+++ b/drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/usb_ops_linux.c
@@ -0,0 +1,704 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2012 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 _USB_OPS_LINUX_C_
+
+#include <drv_types.h>
+#include <usb_ops_linux.h>
+#include <rtw_sreset.h>
+
+#ifdef CONFIG_USB_SUPPORT_ASYNC_VDN_REQ
+static void _usbctrl_vendorreq_async_callback(struct urb *urb, struct pt_regs *regs)
+{
+	if (urb) {
+		if (urb->context) {
+			rtw_mfree(urb->context);
+		}
+		usb_free_urb(urb);
+	}
+}
+
+static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
+	u16 value, u16 index, void *pdata, u16 len, u8 requesttype)
+{
+	int rc;
+	unsigned int pipe;
+	u8 reqtype;
+	struct usb_ctrlrequest *dr;
+	struct urb *urb;
+	struct rtl819x_async_write_data {
+		u8 data[VENDOR_CMD_MAX_DATA_LEN];
+		struct usb_ctrlrequest dr;
+	} *buf;
+
+
+	if (requesttype == VENDOR_READ) {
+		pipe = usb_rcvctrlpipe(udev, 0);//read_in
+		reqtype =  REALTEK_USB_VENQT_READ;
+	}
+	else {
+		pipe = usb_sndctrlpipe(udev, 0);//write_out
+		reqtype =  REALTEK_USB_VENQT_WRITE;
+	}
+	
+	buf = (struct rtl819x_async_write_data *)rtw_zmalloc(sizeof(*buf));
+	if (!buf) {
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	urb = usb_alloc_urb(0, GFP_ATOMIC);
+	if (!urb) {
+		rtw_mfree((u8*)buf, sizeof(*buf));
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	dr = &buf->dr;
+
+	dr->bRequestType = reqtype;
+	dr->bRequest = request;
+	dr->wValue = cpu_to_le16(value);
+	dr->wIndex = cpu_to_le16(index);
+	dr->wLength = cpu_to_le16(len);
+
+	_rtw_memcpy(buf, pdata, len);
+
+	usb_fill_control_urb(urb, udev, pipe, (unsigned char *)dr, buf, len,
+		_usbctrl_vendorreq_async_callback, buf);
+
+	rc = usb_submit_urb(urb, GFP_ATOMIC);
+	if (rc < 0) {
+		rtw_mfree((u8*)buf, sizeof(*buf));
+		usb_free_urb(urb);
+	}
+
+exit:
+	return rc;
+}
+
+int usb_write_async(struct usb_device *udev, u32 addr, void *pdata, u16 len)
+{
+	u8 request;
+	u8 requesttype;
+	u16 wvalue;
+	u16 index;
+
+	int ret;
+
+	requesttype = VENDOR_WRITE;//write_out
+	request = REALTEK_USB_VENQT_CMD_REQ;
+	index = REALTEK_USB_VENQT_CMD_IDX;//n/a
+
+	wvalue = (u16)(addr&0x0000ffff);
+
+	ret = _usbctrl_vendorreq_async_write(udev, request, wvalue, index, pdata, len, requesttype);
+
+	return ret;
+}
+
+int usb_async_write8(struct intf_hdl *pintfhdl, u32 addr, u8 val)
+{
+	u8 data;
+	int ret;
+	struct dvobj_priv  *pdvobjpriv = (struct dvobj_priv  *)pintfhdl->pintf_dev;
+	struct usb_device *udev=pdvobjpriv->pusbdev;
+
+	_func_enter_;
+	data = val;
+	ret = usb_write_async(udev, addr, &data, 1);
+	_func_exit_;
+
+	return ret;
+}
+
+int usb_async_write16(struct intf_hdl *pintfhdl, u32 addr, u16 val)
+{
+	u16 data;
+	int ret;
+	struct dvobj_priv  *pdvobjpriv = (struct dvobj_priv  *)pintfhdl->pintf_dev;
+	struct usb_device *udev=pdvobjpriv->pusbdev;
+
+	_func_enter_;
+	data = val;
+	ret = usb_write_async(udev, addr, &data, 2);
+	_func_exit_;
+
+	return ret;
+}
+
+int usb_async_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
+{
+	u32 data;
+	int ret;
+	struct dvobj_priv  *pdvobjpriv = (struct dvobj_priv  *)pintfhdl->pintf_dev;
+	struct usb_device *udev=pdvobjpriv->pusbdev;
+
+	_func_enter_;
+	data = val;
+	ret = usb_write_async(udev, addr, &data, 4);
+	_func_exit_;
+	
+	return ret;
+}
+#endif /* CONFIG_USB_SUPPORT_ASYNC_VDN_REQ */
+
+unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr)
+{
+	unsigned int pipe=0, ep_num=0;
+	struct usb_device *pusbd = pdvobj->pusbdev;	
+
+	if (addr == RECV_BULK_IN_ADDR) {	
+		pipe=usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[0]);
+		
+	} else if (addr == RECV_INT_IN_ADDR) {	
+		pipe=usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[1]);
+		
+	} else if (addr < HW_QUEUE_ENTRY) {
+		ep_num = pdvobj->Queue2Pipe[addr];
+		pipe = usb_sndbulkpipe(pusbd, ep_num);
+	}
+
+	return pipe;
+}
+
+struct zero_bulkout_context{
+	void *pbuf;
+	void *purb;
+	void *pirp;
+	void *padapter;
+};
+
+static void usb_bulkout_zero_complete(struct urb *purb, struct pt_regs *regs)
+{	
+	struct zero_bulkout_context *pcontext = (struct zero_bulkout_context *)purb->context;
+
+	//DBG_8192C("+usb_bulkout_zero_complete\n");
+	
+	if(pcontext)
+	{
+		if(pcontext->pbuf)
+		{			
+			rtw_mfree(pcontext->pbuf, sizeof(int));	
+		}	
+
+		if(pcontext->purb && (pcontext->purb==purb))
+		{
+			usb_free_urb(pcontext->purb);
+		}
+
+	
+		rtw_mfree((u8*)pcontext, sizeof(struct zero_bulkout_context));	
+	}	
+	
+
+}
+
+static u32 usb_bulkout_zero(struct intf_hdl *pintfhdl, u32 addr)
+{	
+	int pipe, status, len;
+	u32 ret;
+	unsigned char *pbuf;
+	struct zero_bulkout_context *pcontext;
+	PURB	purb = NULL;	
+	_adapter *padapter = (_adapter *)pintfhdl->padapter;
+	struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);	
+	struct usb_device *pusbd = pdvobj->pusbdev;
+
+	//DBG_871X("%s\n", __func__);
+	
+		
+	if((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||(dvobj_to_pwrctl(pdvobj)->pnp_bstop_trx))
+	{		
+		return _FAIL;
+	}
+	
+
+	pcontext = (struct zero_bulkout_context *)rtw_zmalloc(sizeof(struct zero_bulkout_context));
+
+	pbuf = (unsigned char *)rtw_zmalloc(sizeof(int));	
+    	purb = usb_alloc_urb(0, GFP_ATOMIC);
+      	
+	len = 0;
+	pcontext->pbuf = pbuf;
+	pcontext->purb = purb;
+	pcontext->pirp = NULL;
+	pcontext->padapter = padapter;
+
+	
+	//translate DMA FIFO addr to pipehandle
+	//pipe = ffaddr2pipehdl(pdvobj, addr);	
+
+	usb_fill_bulk_urb(purb, pusbd, pipe, 
+       				pbuf,
+              			len,
+              			usb_bulkout_zero_complete,
+              			pcontext);//context is pcontext
+
+	status = usb_submit_urb(purb, GFP_ATOMIC);
+
+	if (!status)
+	{		
+		ret= _SUCCESS;
+	}
+	else
+	{
+		ret= _FAIL;
+	}
+	
+	
+	return _SUCCESS;
+
+}
+
+void usb_read_mem(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem)
+{
+	
+}
+
+void usb_write_mem(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *wmem)
+{
+	
+}
+
+
+void usb_read_port_cancel(struct intf_hdl *pintfhdl)
+{
+	int i;	
+	struct recv_buf *precvbuf;	
+	_adapter	*padapter = pintfhdl->padapter;
+	precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
+
+	DBG_871X("%s\n", __func__);
+
+	padapter->bReadPortCancel = _TRUE;
+
+	for (i=0; i < NR_RECVBUFF ; i++) {
+		
+		precvbuf->reuse = _TRUE;	
+		if (precvbuf->purb)	 {
+			//DBG_8192C("usb_read_port_cancel : usb_kill_urb \n");
+			usb_kill_urb(precvbuf->purb);
+		}		
+		precvbuf++;
+	}
+
+#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
+	usb_kill_urb(padapter->recvpriv.int_in_urb);
+#endif
+}
+
+static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
+{
+	_irqL irqL;
+	int i;
+	struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
+	//struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitbuf->priv_data;
+	//_adapter			*padapter = pxmitframe->padapter;
+	_adapter	*padapter = pxmitbuf->padapter;
+       struct xmit_priv	*pxmitpriv = &padapter->xmitpriv;		
+	//struct pkt_attrib *pattrib = &pxmitframe->attrib;
+	   
+_func_enter_;
+
+	switch(pxmitbuf->flags)
+	{
+		case VO_QUEUE_INX:
+			pxmitpriv->voq_cnt--;			
+			break;
+		case VI_QUEUE_INX:
+			pxmitpriv->viq_cnt--;		
+			break;
+		case BE_QUEUE_INX:
+			pxmitpriv->beq_cnt--;			
+			break;
+		case BK_QUEUE_INX:
+			pxmitpriv->bkq_cnt--;			
+			break;
+		case HIGH_QUEUE_INX:
+#ifdef CONFIG_AP_MODE			
+			rtw_chk_hi_queue_cmd(padapter);
+#endif
+			break;
+		default:			
+			break;
+	}
+		
+
+/*
+	_enter_critical(&pxmitpriv->lock, &irqL);
+
+	pxmitpriv->txirp_cnt--;
+	
+	switch(pattrib->priority) 
+	{
+		case 1:				
+		case 2:
+			pxmitpriv->bkq_cnt--;
+			//DBG_8192C("pxmitpriv->bkq_cnt=%d\n", pxmitpriv->bkq_cnt);
+			break;
+		case 4:
+		case 5:
+			pxmitpriv->viq_cnt--;
+			//DBG_8192C("pxmitpriv->viq_cnt=%d\n", pxmitpriv->viq_cnt);
+			break;
+		case 6:
+		case 7:
+			pxmitpriv->voq_cnt--;
+			//DBG_8192C("pxmitpriv->voq_cnt=%d\n", pxmitpriv->voq_cnt);
+			break;
+		case 0:
+		case 3:			
+		default:
+			pxmitpriv->beq_cnt--;
+			//DBG_8192C("pxmitpriv->beq_cnt=%d\n", pxmitpriv->beq_cnt);
+			break;
+			
+	}	
+	
+	_exit_critical(&pxmitpriv->lock, &irqL);
+	
+	
+	if(pxmitpriv->txirp_cnt==0)
+	{
+		RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port_complete: txirp_cnt== 0, set allrxreturnevt!\n"));		
+		_rtw_up_sema(&(pxmitpriv->tx_retevt));
+	}
+*/
+        //rtw_free_xmitframe(pxmitpriv, pxmitframe);
+	
+	if(padapter->bSurpriseRemoved || padapter->bDriverStopped ||padapter->bWritePortCancel)
+	{
+		RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
+		DBG_8192C("%s(): TX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bWritePortCancel(%d) pxmitbuf->ext_tag(%x) \n", 
+		__FUNCTION__,padapter->bDriverStopped, padapter->bSurpriseRemoved,padapter->bReadPortCancel,pxmitbuf->ext_tag);	
+
+		goto check_completion;
+	}
+
+
+	if (purb->status==0) {
+	
+	} else {
+		RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port_complete : purb->status(%d) != 0 \n", purb->status));
+		DBG_871X("###=> urb_write_port_complete status(%d)\n",purb->status);
+		if((purb->status==-EPIPE)||(purb->status==-EPROTO))
+		{
+			//usb_clear_halt(pusbdev, purb->pipe);	
+			//msleep(10);
+			sreset_set_wifi_error_status(padapter, USB_WRITE_PORT_FAIL);
+		} else if (purb->status == -EINPROGRESS) {
+			RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port_complete: EINPROGESS\n"));
+			goto check_completion;
+
+		} else if (purb->status == -ENOENT) {
+			DBG_871X("%s: -ENOENT\n", __func__);
+			goto check_completion;
+			
+		} else if (purb->status == -ECONNRESET) {
+			DBG_871X("%s: -ECONNRESET\n", __func__);
+			goto check_completion;
+
+		} else if (purb->status == -ESHUTDOWN) {
+			RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port_complete: ESHUTDOWN\n"));
+			padapter->bDriverStopped=_TRUE;
+			RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port_complete:bDriverStopped=TRUE\n"));
+
+			goto check_completion;
+		}
+		else
+		{					
+			padapter->bSurpriseRemoved=_TRUE;
+			DBG_8192C("bSurpriseRemoved=TRUE\n");
+			//rtl8192cu_trigger_gpio_0(padapter);
+			RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port_complete:bSurpriseRemoved=TRUE\n"));
+
+			goto check_completion;
+		}
+	}
+
+	#ifdef DBG_CONFIG_ERROR_DETECT
+	{	
+		HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(padapter);
+		pHalData->srestpriv.last_tx_complete_time = rtw_get_current_time();		
+	}
+	#endif
+
+check_completion:
+	_enter_critical(&pxmitpriv->lock_sctx, &irqL);
+	rtw_sctx_done_err(&pxmitbuf->sctx,
+		purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR : RTW_SCTX_DONE_SUCCESS);
+	_exit_critical(&pxmitpriv->lock_sctx, &irqL);
+
+	rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
+
+	//if(rtw_txframes_pending(padapter))	
+	{
+		tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
+	}
+	
+_func_exit_;	
+
+}
+
+u32 usb_write_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *wmem)
+{    
+	_irqL irqL;
+	unsigned int pipe;
+	int status;
+	u32 ret = _FAIL, bwritezero = _FALSE;
+	PURB	purb = NULL;
+	_adapter *padapter = (_adapter *)pintfhdl->padapter;
+	struct dvobj_priv	*pdvobj = adapter_to_dvobj(padapter);	
+	struct xmit_priv	*pxmitpriv = &padapter->xmitpriv;
+	struct xmit_buf *pxmitbuf = (struct xmit_buf *)wmem;
+	struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitbuf->priv_data;
+	struct usb_device *pusbd = pdvobj->pusbdev;
+	struct pkt_attrib *pattrib = &pxmitframe->attrib;
+	
+_func_enter_;	
+	
+	RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("+usb_write_port\n"));
+	
+	if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||(dvobj_to_pwrctl(pdvobj)->pnp_bstop_trx)) {
+		#ifdef DBG_TX
+		DBG_871X(" DBG_TX %s:%d bDriverStopped%d, bSurpriseRemoved:%d, pnp_bstop_trx:%d\n",__FUNCTION__, __LINE__
+			,padapter->bDriverStopped, padapter->bSurpriseRemoved, dvobj_to_pwrctl(pdvobj)->pnp_bstop_trx );
+		#endif
+		RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||pwrctl->pnp_bstop_trx)!!!\n"));
+		rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
+		goto exit;
+	}
+	
+	_enter_critical(&pxmitpriv->lock, &irqL);
+
+	switch(addr)
+	{
+		case VO_QUEUE_INX:
+			pxmitpriv->voq_cnt++;
+			pxmitbuf->flags = VO_QUEUE_INX;
+			break;
+		case VI_QUEUE_INX:
+			pxmitpriv->viq_cnt++;
+			pxmitbuf->flags = VI_QUEUE_INX;
+			break;
+		case BE_QUEUE_INX:
+			pxmitpriv->beq_cnt++;
+			pxmitbuf->flags = BE_QUEUE_INX;
+			break;
+		case BK_QUEUE_INX:
+			pxmitpriv->bkq_cnt++;
+			pxmitbuf->flags = BK_QUEUE_INX;
+			break;
+		case HIGH_QUEUE_INX:
+			pxmitbuf->flags = HIGH_QUEUE_INX;
+			break;
+		default:
+			pxmitbuf->flags = MGT_QUEUE_INX;
+			break;
+	}
+
+	_exit_critical(&pxmitpriv->lock, &irqL);
+
+	#ifdef DBG_TRX_STA_PKTS
+	{
+		struct sta_info *psta = NULL;
+	 	struct sta_priv *pstapriv = &padapter->stapriv;		
+		int bmcast = IS_MCAST(pattrib->dst);
+		u8 agg_num = 1;
+		
+		#ifdef CONFIG_USB_HCI
+		#ifdef CONFIG_USB_TX_AGGREGATION
+			if(pxmitframe->agg_num>1)
+				agg_num = pxmitframe->agg_num;
+		#endif
+		#endif
+		
+		#if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
+			if(pxmitframe->agg_num>1)
+				agg_num = pxmitframe->agg_num;
+		#endif
+
+		if(bmcast)
+		{
+			psta = rtw_get_bcmc_stainfo(padapter);
+	
+		} else {
+			psta = rtw_get_stainfo(pstapriv, pattrib->dst);
+		}
+		if(psta)
+		{
+			switch(pattrib->priority)
+			{
+				case 1:
+				case 2:						
+					psta->tx_bk_cnt += agg_num;
+					break;
+				case 4:
+				case 5:					
+					psta->tx_vi_cnt += agg_num;					
+					break;
+				case 6:
+				case 7:
+					psta->tx_vo_cnt += agg_num;					
+					break;
+				case 0:
+				case 3:
+				default:						
+					psta->tx_be_cnt += agg_num;			
+					break;	
+			}
+		}		
+	}	
+	#endif
+		
+	purb	= pxmitbuf->pxmit_urb[0];
+
+#if 0
+	if(pdvobj->ishighspeed)
+	{
+		if(cnt> 0 && cnt%512 == 0)
+		{
+			//DBG_8192C("ishighspeed, cnt=%d\n", cnt);
+			bwritezero = _TRUE;			
+		}	
+	}
+	else
+	{
+		if(cnt > 0 && cnt%64 == 0)
+		{
+			//DBG_8192C("cnt=%d\n", cnt);
+			bwritezero = _TRUE;			
+		}	
+	}
+#endif
+
+	//translate DMA FIFO addr to pipehandle
+	pipe = ffaddr2pipehdl(pdvobj, addr);	
+
+#ifdef CONFIG_REDUCE_USB_TX_INT	
+	if ( (pxmitpriv->free_xmitbuf_cnt%NR_XMITBUFF == 0)
+		|| (pxmitbuf->ext_tag == _TRUE) )
+	{
+		purb->transfer_flags  &=  (~URB_NO_INTERRUPT);
+	} else {
+		purb->transfer_flags  |=  URB_NO_INTERRUPT;
+		//DBG_8192C("URB_NO_INTERRUPT ");
+	}
+#endif
+
+
+	usb_fill_bulk_urb(purb, pusbd, pipe, 
+       				pxmitframe->buf_addr, //= pxmitbuf->pbuf
+              			cnt,
+              			usb_write_port_complete,
+              			pxmitbuf);//context is pxmitbuf
+              			
+#ifdef CONFIG_USE_USB_BUFFER_ALLOC_TX
+	purb->transfer_dma = pxmitbuf->dma_transfer_addr;
+	purb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+	purb->transfer_flags |= URB_ZERO_PACKET;
+#endif	// CONFIG_USE_USB_BUFFER_ALLOC_TX
+
+#ifdef USB_PACKET_OFFSET_SZ
+#if (USB_PACKET_OFFSET_SZ == 0)
+	purb->transfer_flags |= URB_ZERO_PACKET;
+#endif
+#endif
+
+#if 0
+	if (bwritezero)
+        {
+            purb->transfer_flags |= URB_ZERO_PACKET;           
+        }			
+#endif
+
+	status = usb_submit_urb(purb, GFP_ATOMIC);
+	if (!status) {
+		#ifdef DBG_CONFIG_ERROR_DETECT	
+		{	
+			HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(padapter);
+			pHalData->srestpriv.last_tx_time = rtw_get_current_time();		
+		}
+		#endif
+	} else {
+		rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR);
+		DBG_871X("usb_write_port, status=%d\n", status);
+		RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_write_port(): usb_submit_urb, status=%x\n", status));
+		
+		switch (status) {
+		case -ENODEV:
+			padapter->bDriverStopped=_TRUE;
+			break;
+		default:
+			break;
+		}
+		goto exit;
+	}
+
+	ret= _SUCCESS;
+
+//   Commented by Albert 2009/10/13
+//   We add the URB_ZERO_PACKET flag to urb so that the host will send the zero packet automatically.
+/*	
+	if(bwritezero == _TRUE)
+	{
+		usb_bulkout_zero(pintfhdl, addr);
+	}
+*/
+
+	RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("-usb_write_port\n"));
+
+exit:
+	if (ret != _SUCCESS)
+		rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
+_func_exit_;
+	return ret;
+
+}
+
+void usb_write_port_cancel(struct intf_hdl *pintfhdl)
+{
+	int i, j;
+	_adapter	*padapter = pintfhdl->padapter;
+	struct xmit_buf *pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmitbuf;
+
+	DBG_871X("%s \n", __func__);
+	
+	padapter->bWritePortCancel = _TRUE;	
+	
+	for (i=0; i<NR_XMITBUFF; i++) {
+		for (j=0; j<8; j++) {
+			if (pxmitbuf->pxmit_urb[j]) {
+				usb_kill_urb(pxmitbuf->pxmit_urb[j]);
+			}
+		}
+		pxmitbuf++;
+	}
+	
+	pxmitbuf = (struct xmit_buf*)padapter->xmitpriv.pxmit_extbuf;
+	for (i = 0; i < NR_XMIT_EXTBUFF; i++) {	
+		for (j=0; j<8; j++) {
+			if(pxmitbuf->pxmit_urb[j]) {
+				usb_kill_urb(pxmitbuf->pxmit_urb[j]);
+			}
+		}
+		pxmitbuf++;
+	}
+}
+