/******************************************************************************
 *
 * 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_C_

#include <rtl8723b_hal.h>

#ifdef CONFIG_SUPPORT_USB_INT
void interrupt_handler_8723bu(_adapter *padapter,u16 pkt_len,u8 *pbuf)
{
	HAL_DATA_TYPE	*pHalData=GET_HAL_DATA(padapter);
	struct reportpwrstate_parm pwr_rpt;

	if ( pkt_len != INTERRUPT_MSG_FORMAT_LEN )
	{
		DBG_8192C("%s Invalid interrupt content length (%d)!\n", __FUNCTION__, pkt_len);
		return ;
	}

	// HISR
	_rtw_memcpy(&(pHalData->IntArray[0]), &(pbuf[USB_INTR_CONTENT_HISR_OFFSET]), 4);
	_rtw_memcpy(&(pHalData->IntArray[1]), &(pbuf[USB_INTR_CONTENT_HISRE_OFFSET]), 4);

	#if 0 //DBG
	{
		u32 hisr=0 ,hisr_ex=0;
		_rtw_memcpy(&hisr,&(pHalData->IntArray[0]),4);
		hisr = le32_to_cpu(hisr);

		_rtw_memcpy(&hisr_ex,&(pHalData->IntArray[1]),4);
		hisr_ex = le32_to_cpu(hisr_ex);

		if((hisr != 0) || (hisr_ex!=0))
			DBG_871X("===> %s hisr:0x%08x ,hisr_ex:0x%08x \n",__FUNCTION__,hisr,hisr_ex);
	}
	#endif


#ifdef CONFIG_LPS_LCLK
	if(  pHalData->IntArray[0]  & IMR_CPWM_88E )
	{
		_rtw_memcpy(&pwr_rpt.state, &(pbuf[USB_INTR_CONTENT_CPWM1_OFFSET]), 1);
		//_rtw_memcpy(&pwr_rpt.state2, &(pbuf[USB_INTR_CONTENT_CPWM2_OFFSET]), 1);

		//88e's cpwm value only change BIT0, so driver need to add PS_STATE_S2 for LPS flow.
		pwr_rpt.state |= PS_STATE_S2;
		_set_workitem(&(adapter_to_pwrctl(padapter)->cpwm_event));
	}
#endif//CONFIG_LPS_LCLK

#ifdef CONFIG_INTERRUPT_BASED_TXBCN

	#ifdef  CONFIG_INTERRUPT_BASED_TXBCN_EARLY_INT
	if (pHalData->IntArray[0] & IMR_BCNDMAINT0_88E)
	#endif
	#ifdef  CONFIG_INTERRUPT_BASED_TXBCN_BCN_OK_ERR
	if (pHalData->IntArray[0] & (IMR_TBDER_88E|IMR_TBDOK_88E))
	#endif
	{
		struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
		#if 0
		if(pHalData->IntArray[0] & IMR_BCNDMAINT0_88E)
			DBG_8192C("%s: HISR_BCNERLY_INT\n", __func__);
		if(pHalData->IntArray[0] & IMR_TBDOK_88E)
			DBG_8192C("%s: HISR_TXBCNOK\n", __func__);
		if(pHalData->IntArray[0] & IMR_TBDER_88E)
			DBG_8192C("%s: HISR_TXBCNERR\n", __func__);
		#endif


		if(check_fwstate(pmlmepriv, WIFI_AP_STATE))
	{
			//send_beacon(padapter);
			if(pmlmepriv->update_bcn == _TRUE)
	{
				//tx_beacon_hdl(padapter, NULL);
				set_tx_beacon_cmd(padapter);
	}
	}
#ifdef CONFIG_CONCURRENT_MODE
		if(check_buddy_fwstate(padapter, WIFI_AP_STATE))
	{
			//send_beacon(padapter);
			if(padapter->pbuddy_adapter->mlmepriv.update_bcn == _TRUE)
	{
				//tx_beacon_hdl(padapter, NULL);
				set_tx_beacon_cmd(padapter->pbuddy_adapter);
	}
	}
#endif

	}
#endif //CONFIG_INTERRUPT_BASED_TXBCN




#ifdef DBG_CONFIG_ERROR_DETECT_INT
	if(  pHalData->IntArray[1]  & IMR_TXERR_8723B )
		DBG_871X("===> %s Tx Error Flag Interrupt Status \n",__FUNCTION__);
	if(  pHalData->IntArray[1]  & IMR_RXERR_8723B )
		DBG_871X("===> %s Rx Error Flag INT Status \n",__FUNCTION__);
	if(  pHalData->IntArray[1]  & IMR_TXFOVW_8723B )
		DBG_871X("===> %s Transmit FIFO Overflow \n",__FUNCTION__);
	if(  pHalData->IntArray[1]  & IMR_RXFOVW_8723B )
		DBG_871X("===> %s Receive FIFO Overflow \n",__FUNCTION__);
#endif//DBG_CONFIG_ERROR_DETECT_INT


	// C2H Event
	if(pbuf[0]!= 0){
		_rtw_memcpy(&(pHalData->C2hArray[0]), &(pbuf[USB_INTR_CONTENT_C2H_OFFSET]), 16);
		//rtw_c2h_wk_cmd(padapter); to do..
	}

		}
#endif

static s32 pre_recv_entry(union recv_frame *precvframe, u8 *pphy_status)
{
	s32 ret=_SUCCESS;
#ifdef CONFIG_CONCURRENT_MODE
	u8 *secondary_myid, *paddr1;
	union recv_frame	*precvframe_if2 = NULL;
	_adapter *primary_padapter = precvframe->u.hdr.adapter;
	_adapter *secondary_padapter = primary_padapter->pbuddy_adapter;
	struct recv_priv *precvpriv = &primary_padapter->recvpriv;
	_queue *pfree_recv_queue = &precvpriv->free_recv_queue;
	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(primary_padapter);

	if(!secondary_padapter)
		return ret;

	paddr1 = GetAddr1Ptr(precvframe->u.hdr.rx_data);

	if(IS_MCAST(paddr1) == _FALSE)//unicast packets
	{
		secondary_myid = adapter_mac_addr(secondary_padapter);

		if(_rtw_memcmp(paddr1, secondary_myid, ETH_ALEN))
		{
			//change to secondary interface
			precvframe->u.hdr.adapter = secondary_padapter;
		}

		//ret = recv_entry(precvframe);

	}
	else // Handle BC/MC Packets
	{
		//clone/copy to if2
		_pkt	 *pkt_copy = NULL;
		struct rx_pkt_attrib *pattrib = NULL;

		precvframe_if2 = rtw_alloc_recvframe(pfree_recv_queue);

		if(!precvframe_if2)
			return _FAIL;

		precvframe_if2->u.hdr.adapter = secondary_padapter;
		_rtw_memcpy(&precvframe_if2->u.hdr.attrib, &precvframe->u.hdr.attrib, sizeof(struct rx_pkt_attrib));
		pattrib = &precvframe_if2->u.hdr.attrib;

		//driver need to set skb len for skb_copy().
		//If skb->len is zero, skb_copy() will not copy data from original skb.
		skb_put(precvframe->u.hdr.pkt, pattrib->pkt_len);

		pkt_copy = rtw_skb_copy( precvframe->u.hdr.pkt);
		if (pkt_copy == NULL)
		{
			if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0))
			{
				DBG_8192C("pre_recv_entry(): rtw_skb_copy fail , drop frag frame \n");
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				return ret;
			}

			pkt_copy = rtw_skb_clone( precvframe->u.hdr.pkt);
			if(pkt_copy == NULL)
			{
				DBG_8192C("pre_recv_entry(): rtw_skb_clone fail , drop frame\n");
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				return ret;
			}
		}

		pkt_copy->dev = secondary_padapter->pnetdev;

		precvframe_if2->u.hdr.pkt = pkt_copy;
		precvframe_if2->u.hdr.rx_head = pkt_copy->head;
		precvframe_if2->u.hdr.rx_data = pkt_copy->data;
		precvframe_if2->u.hdr.rx_tail = skb_tail_pointer(pkt_copy);
		precvframe_if2->u.hdr.rx_end = skb_end_pointer(pkt_copy);
		precvframe_if2->u.hdr.len = pkt_copy->len;

		//recvframe_put(precvframe_if2, pattrib->pkt_len);

		if ( pHalData->ReceiveConfig & RCR_APPFCS)
			recvframe_pull_tail(precvframe_if2, IEEE80211_FCS_LEN);

		if (pattrib->physt)
			rx_query_phy_status(precvframe_if2, pphy_status);

		if(rtw_recv_entry(precvframe_if2) != _SUCCESS)
		{
			RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,
				("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
		}
	}

	//if (precvframe->u.hdr.attrib.physt)
	//	rx_query_phy_status(precvframe, pphy_status);

	//ret = rtw_recv_entry(precvframe);
#endif

	return ret;

}

#if 0
static s32 pre_recv_entry(union recv_frame *precvframe, u8 *pphy_status)
{
	s32 ret=_SUCCESS;
#ifdef CONFIG_CONCURRENT_MODE
	u8 *secondary_myid, *paddr1;
	union recv_frame	*precvframe_if2 = NULL;
	_adapter *primary_padapter = precvframe->u.hdr.adapter;
	_adapter *secondary_padapter = primary_padapter->pbuddy_adapter;
	struct recv_priv *precvpriv = &primary_padapter->recvpriv;
	_queue *pfree_recv_queue = &precvpriv->free_recv_queue;
	u8	*pbuf = precvframe->u.hdr.rx_data;

	if(!secondary_padapter)
		return ret;

	paddr1 = GetAddr1Ptr(pbuf);

	if(IS_MCAST(paddr1) == _FALSE)//unicast packets
	{
		secondary_myid = adapter_mac_addr(secondary_padapter);

		if(_rtw_memcmp(paddr1, secondary_myid, ETH_ALEN))
		{
			//change to secondary interface
			precvframe->u.hdr.adapter = secondary_padapter;
		}

		//ret = recv_entry(precvframe);

	}
	else // Handle BC/MC Packets
	{

		u8 clone = _TRUE;
#if 0
		u8 type, subtype, *paddr2, *paddr3;

		type =  GetFrameType(pbuf);
		subtype = GetFrameSubType(pbuf); //bit(7)~bit(2)

		switch (type)
		{
			case WIFI_MGT_TYPE: //Handle BC/MC mgnt Packets
				if(subtype == WIFI_BEACON)
				{
					paddr3 = GetAddr3Ptr(precvframe->u.hdr.rx_data);

					if (check_fwstate(&secondary_padapter->mlmepriv, _FW_LINKED) &&
						_rtw_memcmp(paddr3, get_bssid(&secondary_padapter->mlmepriv), ETH_ALEN))
					{
						//change to secondary interface
						precvframe->u.hdr.adapter = secondary_padapter;
						clone = _FALSE;
					}

					if(check_fwstate(&primary_padapter->mlmepriv, _FW_LINKED) &&
						_rtw_memcmp(paddr3, get_bssid(&primary_padapter->mlmepriv), ETH_ALEN))
					{
						if(clone==_FALSE)
						{
							clone = _TRUE;
						}
						else
						{
							clone = _FALSE;
						}

						precvframe->u.hdr.adapter = primary_padapter;
					}

					if(check_fwstate(&primary_padapter->mlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) ||
						check_fwstate(&secondary_padapter->mlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING))
					{
						clone = _TRUE;
						precvframe->u.hdr.adapter = primary_padapter;
					}

				}
				else if(subtype == WIFI_PROBEREQ)
				{
					//probe req frame is only for interface2
					//change to secondary interface
					precvframe->u.hdr.adapter = secondary_padapter;
					clone = _FALSE;
				}
				break;
			case WIFI_CTRL_TYPE: // Handle BC/MC ctrl Packets

				break;
			case WIFI_DATA_TYPE: //Handle BC/MC data Packets
					//Notes: AP MODE never rx BC/MC data packets

				paddr2 = GetAddr2Ptr(precvframe->u.hdr.rx_data);

				if(_rtw_memcmp(paddr2, get_bssid(&secondary_padapter->mlmepriv), ETH_ALEN))
				{
					//change to secondary interface
					precvframe->u.hdr.adapter = secondary_padapter;
					clone = _FALSE;
				}

				break;
			default:

				break;
		}
#endif

		if(_TRUE == clone)
		{
			//clone/copy to if2
			struct rx_pkt_attrib *pattrib = NULL;

			precvframe_if2 = rtw_alloc_recvframe(pfree_recv_queue);
			if(precvframe_if2)
			{
				precvframe_if2->u.hdr.adapter = secondary_padapter;

				_rtw_init_listhead(&precvframe_if2->u.hdr.list);
				precvframe_if2->u.hdr.precvbuf = NULL;	//can't access the precvbuf for new arch.
				precvframe_if2->u.hdr.len=0;

				_rtw_memcpy(&precvframe_if2->u.hdr.attrib, &precvframe->u.hdr.attrib, sizeof(struct rx_pkt_attrib));

				pattrib = &precvframe_if2->u.hdr.attrib;

				if(rtw_os_alloc_recvframe(secondary_padapter, precvframe_if2, pbuf, NULL) == _SUCCESS)
				{
					recvframe_put(precvframe_if2, pattrib->pkt_len);
					//recvframe_pull(precvframe_if2, drvinfo_sz + RXDESC_SIZE);

					if (pattrib->physt && pphy_status)
						rx_query_phy_status(precvframe_if2, pphy_status);

					ret = rtw_recv_entry(precvframe_if2);
				}
				else
				{
					rtw_free_recvframe(precvframe_if2, pfree_recv_queue);
					DBG_8192C("%s()-%d: alloc_skb() failed!\n", __FUNCTION__, __LINE__);
				}

			}

		}

	}
	//if (precvframe->u.hdr.attrib.physt)
	//	rx_query_phy_status(precvframe, pphy_status);

	//ret = rtw_recv_entry(precvframe);

#endif

	return ret;

}
#endif

int recvbuf2recvframe(PADAPTER padapter, void *ptr)
{
	u8 *pbuf;
	u8 pkt_cnt = 0;
	u32 pkt_offset;
	s32 transfer_len;
	u8 *pdata, *pphy_status;
	union recv_frame *precvframe = NULL;
	struct rx_pkt_attrib *pattrib = NULL;
	PHAL_DATA_TYPE pHalData;
	struct recv_priv *precvpriv;
	_queue *pfree_recv_queue;
	_pkt *pskb;


	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;
	pfree_recv_queue = &precvpriv->free_recv_queue;

#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
	pskb = NULL;
	transfer_len = (s32)((struct recv_buf*)ptr)->transfer_len;
	pbuf = ((struct recv_buf*)ptr)->pbuf;
#else // !CONFIG_USE_USB_BUFFER_ALLOC_RX
	pskb = (_pkt*)ptr;
	transfer_len = (s32)pskb->len;
	pbuf = pskb->data;
#endif // !CONFIG_USE_USB_BUFFER_ALLOC_RX

#ifdef CONFIG_USB_RX_AGGREGATION
	pkt_cnt = GET_RX_STATUS_DESC_USB_AGG_PKTNUM_8723B(pbuf);
#endif

	do {
		precvframe = rtw_alloc_recvframe(pfree_recv_queue);
		if (precvframe == NULL) {
			DBG_8192C("%s: rtw_alloc_recvframe() failed! RX Drop!\n", __FUNCTION__);
			goto _exit_recvbuf2recvframe;
		}

		if (transfer_len >1500)
			_rtw_init_listhead(&precvframe->u.hdr.list);
		precvframe->u.hdr.precvbuf = NULL;	//can't access the precvbuf for new arch.
		precvframe->u.hdr.len = 0;

		rtl8723b_query_rx_desc_status(precvframe, pbuf);

		pattrib = &precvframe->u.hdr.attrib;

		if (((pattrib->crc_err) || (pattrib->icv_err))) {
			DBG_8192C("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n",
				__FUNCTION__, pattrib->crc_err, pattrib->icv_err);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;
		if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) {
			DBG_8192C("%s: RX Error! pkt_len=%d pkt_offset=%d transfer_len=%d\n",
				__FUNCTION__, pattrib->pkt_len, pkt_offset, transfer_len);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		pdata = pbuf + RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz;
		if (rtw_os_alloc_recvframe(padapter, precvframe, pdata, pskb) == _FAIL) {
			DBG_8192C("%s: RX Error! rtw_os_alloc_recvframe FAIL!\n", __FUNCTION__);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		recvframe_put(precvframe, pattrib->pkt_len);

		if (pattrib->pkt_rpt_type == NORMAL_RX) {
			if (pattrib->physt)
				pphy_status = pbuf + RXDESC_OFFSET;
			else
				pphy_status = NULL;

#ifdef CONFIG_CONCURRENT_MODE
			if (rtw_buddy_adapter_up(padapter)) {
				if (pre_recv_entry(precvframe, pphy_status) != _SUCCESS) {
					// Return fail except data frame
					//DBG_8192C("%s: RX Error! (concurrent)pre_recv_entry FAIL!\n", __FUNCTION__);
				}
			}
#endif // CONFIG_CONCURRENT_MODE

			if (pphy_status)
				rx_query_phy_status(precvframe, pphy_status);

			if (rtw_recv_entry(precvframe) != _SUCCESS) {
				// Return fail except data frame
				//DBG_8192C("%s: RX Error! rtw_recv_entry FAIL!\n", __FUNCTION__);
			}
		}
		else {
#ifdef CONFIG_C2H_PACKET_EN
			if (pattrib->pkt_rpt_type == C2H_PACKET) {
				rtl8723b_c2h_packet_handler(padapter, precvframe->u.hdr.rx_data, pattrib->pkt_len);
			}
			else {
				DBG_8192C("%s: [WARNNING] RX type(%d) not be handled!\n",
					__FUNCTION__, pattrib->pkt_rpt_type);
			}
#endif // CONFIG_C2H_PACKET_EN
			rtw_free_recvframe(precvframe, pfree_recv_queue);
		}

#ifdef CONFIG_USB_RX_AGGREGATION
		// jaguar 8-byte alignment
		pkt_offset = (u16)_RND8(pkt_offset);
		pkt_cnt--;
		pbuf += pkt_offset;
#endif
		transfer_len -= pkt_offset;
		precvframe = NULL;
	} while (transfer_len > 0);

_exit_recvbuf2recvframe:

	return _SUCCESS;
}


void rtl8723bu_xmit_tasklet(void *priv)
{
	int ret = _FALSE;
	_adapter *padapter = (_adapter*)priv;
	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;

	while(1)
	{
		if (RTW_CANNOT_TX(padapter))
		{
			DBG_8192C("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
			break;
		}

		if (rtw_xmit_ac_blocked(padapter) == _TRUE)
			break;

		ret = rtl8723bu_xmitframe_complete(padapter, pxmitpriv, NULL);

		if(ret==_FALSE)
			break;

	}

}



void rtl8723bu_set_intf_ops(struct _io_ops	*pops)
{
	_func_enter_;

	_rtw_memset((u8 *)pops, 0, sizeof(struct _io_ops));

	pops->_read8 = &usb_read8;
	pops->_read16 = &usb_read16;
	pops->_read32 = &usb_read32;
	pops->_read_mem = &usb_read_mem;
	pops->_read_port = &usb_read_port;

	pops->_write8 = &usb_write8;
	pops->_write16 = &usb_write16;
	pops->_write32 = &usb_write32;
	pops->_writeN = &usb_writeN;

#ifdef CONFIG_USB_SUPPORT_ASYNC_VDN_REQ
	pops->_write8_async= &usb_async_write8;
	pops->_write16_async = &usb_async_write16;
	pops->_write32_async = &usb_async_write32;
#endif
	pops->_write_mem = &usb_write_mem;
	pops->_write_port = &usb_write_port;

	pops->_read_port_cancel = &usb_read_port_cancel;
	pops->_write_port_cancel = &usb_write_port_cancel;

#ifdef CONFIG_USB_INTERRUPT_IN_PIPE
	pops->_read_interrupt = &usb_read_interrupt;
#endif

	_func_exit_;

}
void rtl8723bu_set_hw_type(struct dvobj_priv *pdvobj)
{
	pdvobj->HardwareType = HARDWARE_TYPE_RTL8723BU;
	DBG_871X("CHIP TYPE: RTL8723BU\n");
}
