///
 // Copyright (c) 2003, Wolver Wang, MinShan Inc. R&D Center
 // wolver@minshan-inc.com
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1. Redistributions of source code must retain the above copyright
 //    notice, this list of conditions and the following disclaimer.
 // 2. Redistributions in binary form must reproduce the above copyright
 //    notice, this list of conditions and the following disclaimer in the
 //    documentation and/or other materials provided with the distribution.
 // 3. All advertising materials mentioning features or use of this software
 //    must display the following acknowledgement:
 //      This product includes software developed by Wolver Wang.
 // 4. The name of the author may not be used to endorse or promote
 //    products derived from this software without specific prior
 //    written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ///


///
 // Copyright (c) 2003, Wolver Wang, MinShan Inc. R&D Center
 // wolver@minshan-inc.com
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1. Redistributions of source code must retain the above copyright
 //    notice, this list of conditions and the following disclaimer.
 // 2. Redistributions in binary form must reproduce the above copyright
 //    notice, this list of conditions and the following disclaimer in the
 //    documentation and/or other materials provided with the distribution.
 // 3. All advertising materials mentioning features or use of this software
 //    must display the following acknowledgement:
 //      This product includes software developed by Wolver Wang.
 // 4. The name of the author may not be used to endorse or promote
 //    products derived from this software without specific prior
 //    written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ///



#include "system.h"
#include "tcpip.h"
#include "drivers.h"

// 定義應用：1 表示開啟功能，0 表示關閉功能
#define cTCP_RS232   1    // TCP <-> RS232 的應用，只用于服務模式
#define cTCP_ADAC    1    // TCP <-> Audio, 主要用于服務，也可以用于客戶。要求高帶寬： > 912Kbit



// 分配本地用戶自定義服務模式應用TCP端口號，不能與知名端口相同！如：23, 80
// 注意：對不同的TCP事件使用不同的本地端口號，有助于快速查找TCP事件而不需要判斷IP是否相同！
//       這樣做能使本地快速響應。
#define cTCP_ListenPort_TEST   0x1000   // 4096

#if cTCP_RS232 == 1
#define cTCP_ListenPort_RS232  0x2000   // 8192
#endif

#if cTCP_ADAC == 0
#define cTCP_ListenPort_ADAC   0x3000   // 12288
#endif

// 客戶應用模式的本地TCP端口號。不能與知名端口相同！如：23, 80
// 注意：對不同的TCP事件使用不同的本地端口號（包括：本地偵聽端口），有助于快速查找TCP事件而
//       不需要判斷IP是否相同！這樣做能使本地快速響應。
#if (cTCP_ADAC == 1) && (TCP_ACTIVE_OPEN == 1)
#define cTCP_ActivePort_ADAC  0x3001   // 12289
#endif




// 分配系統應用臨時緩沖區（按 wrod 存儲）
UINT16 guwAppBuf[cAppSizeMax];

//--------------------------------------------------------------------------------------

main(){
#if  TCP_ACTIVE_OPEN == 1
	UINT16 temp[2];
#endif


// 1. Hardware initialize: SPCE061A
	SP_IO_INIT();

// 2. Open and Enable Hardware interrupt 2Hz and Clear WatchDog!
	SP_OpenTime2();

// 3. Hardware initialize: RTL8019AS
	RTL8019AS_RESET();
	RTL8019AS_INIT();

// 4. vIP4 TCP/IP initialize
	msip_Init();

// 5. We listen test port
	msip_Listen(cTCP_ListenPort_TEST);		// 用于偵聽來自鏈路測試的TCP包


#if cTCP_RS232 == 1
	SP_UART_INIT(C_UART_Baud_115200);		// Hardware initialize: UART of SPCE061A

	msip_Listen(cTCP_ListenPort_RS232);		// 用于偵聽來自RS232的TCP包
#endif


#if cTCP_ADAC == 1
//	SP_ADAC_INIT(cSample_4096);				// Open ADAC
//	SP_ADAC_INIT(cSample_8192);				// Open ADAC
//	SP_ADAC_INIT(cSample_16384);			// Open ADAC
//	SP_ADAC_INIT(cSample_32768);			// Open ADAC
//	SP_CLOSE_FIQ();		// 關閉FIQ中斷，同時也禁止了ADAC

	msip_Listen(cTCP_ListenPort_ADAC);		// 用于偵聽來自遠端的Audio的TCP包
#endif


#if (cTCP_ADAC == 1) && (TCP_ACTIVE_OPEN == 1)
// for test audio, wo active link remote: 192.168.0.60
	temp[0] = ((192<<8)|168);
	temp[1] = ((0<<8)|30);
	msip_Connect(cTCP_ActivePort_ADAC, temp, cTCP_ListenPort_ADAC);
#endif



// 6. We do TCP/IP Check Loop
loop:
	// 接收新的以太包，并處理
	if ((guwEthLen = ether_Receive()) != 0){
		switch (cptEthHdrBuf->EthType){
		case cEthType_Arp:
			msip_Arp_In();
			break;
		case cEthType_Ip:
			msip_Input();
		}
	}

	// ARP表老化處理
	if (guwMsg_Route & cM_ARP_TIME){
		msip_Arp_Time();
	}

	// TCP事件輪詢
	if (guwMsg_Route & cM_TCP_PERIODIC){
		msip_Periodic();
	}

    goto loop;

}



// SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB-SUB


//--------------------------------------------------------------------------------------
//
//      |--------------|       |-----|----------|------|       |------|--------|
//      |工業設備|RS232| <---> |RS232|核心嵌入板|TCP/IP| <---> |TCP/IP|普通PC機|
//      |--------------|       |-----|----------|------|       |------|--------|
//
//-------------------------------------------------------------------------------------
void userapp(){

	switch (gptConn->LocalPort){
#if cTCP_RS232 == 1
	case cTCP_ListenPort_RS232:
		goto link_rs232;
#endif

#if cTCP_ADAC == 1	// ADAC 工作時：由于雙向通訊，所以Listen和Active處理是一樣的！
	case cTCP_ListenPort_ADAC:
		goto link_adac_listen;
#endif

#if (cTCP_ADAC == 1) && (TCP_ACTIVE_OPEN == 1)	// ADAC 工作時：由于雙向通訊，所以Listen和Active處理是一樣的！
	case cTCP_ActivePort_ADAC:
		goto link_adac_active;
#endif

	case cTCP_ListenPort_TEST:
		goto test_net;

	default:
		return;
	}


#if cTCP_RS232 == 1
link_rs232:	 // 與RS232透明傳輸通訊：本系統的一個應用。


// 以下事件的過慮判斷并不按照事件發生的順序，是因為有些事件通常只會發生一次，
// 從而在大多數其它經常發生的事件狀態下，減少對那些事件的過濾判斷，以提高速度!!!

	if (msip_Poll() || msip_Acked()){	// 如果RS232有數據要發送，就轉發TCP數據段！
		if (guwUartRxLen > 0) {	// 根據guwUartRxLen判斷是否轉發RS232數據
			MEMCPY(guwUartRxLen, guwUartRxBuf, cpTcpData);
			guwEthLen = guwUartRxLen;
			guwUartRxLen = 0;
			gptConn->PollTime = 0;	// 清除空閑時間記數
		} else	if (gptConn->PollTime++ > 3*cTCP_MAX_POLL){	// 太長時間空閑(900秒)，終止連接！
				msip_Close();
		}

		return;
	}

	if (msip_NewData()){	// 收到TCP數據包，轉發給RS232
		if (guwEthLen > 0){
			SP_UART_TX(guwEthLen, cpTcpData);
			guwEthLen = 0;