/*
    XDemo06: reads/writes the I/O port of 7188E
    Compiler: BC++ 3.1
    Compile mode: large
    Project: user.c
             v7000.c
             vModbus.c           [after vcom3002.lib]
             ..\Lib\7186EL.Lib
             ..\Lib\tcp_dm32.lib
             ..\Lib\VcomNNNN.Lib, with NNNN being the lib file's version.

    19i n, 19I n                -> read D/I value(hex) from address n(hex)
    19o add val, 19O add val    -> output D/O value(hex) to address n(hex)
    19 o add val, 19 O add val

    This demo shows how to use command 19 to replace command 17, 18

    Hardware: uPAC-7186EX + DI/DO expansion board
    
    [Dec 18, 2008] by Liam
*/

#include <stdio.h>
#include <string.h>
#include <conio.h>
#include "..\lib\7186e.h"
#include "..\lib\Tcpip32.h"
#include "..\lib\vxcomm.h"

void UserCount(void)
{
    /*
    User's timer trigger function.
    Please refer to XDemo04 for detail description.
    Please refer to XDemo09 for example code.
    */
}

void UserInit(void)
{
    /*
    Initialize user's program.
    Please refer to XDemo04 for detail description.
    Please refer to XDemo09 for example code.
    */
    InitLib();
}

void UserLoopFun(void)
{
    /*
    VxComm.exe will call this function every scan time
    Please refer to XDemo11 for Real-time I/O control
    */    
}

char cAddr[80], cVal[80];

int UserCmd(unsigned char *Cmd, unsigned char *Response)
{
    /*  
    Xserver executes this function when received a package 
    form TCP port 10000 and the first two bytes are "19".
    
    Funtion of Xserver, Please refer to XDemo04 for detail description.
    */  
    
    int j, iVal, iAddr;

    if (Cmd[0]) // Not Null command
    {
        switch(Cmd[0])
        {
            case 'i':  // inp command: i 0 or I0
            case 'I':
                sscanf(Cmd+1,"%x",&j);
                iVal=inp(j);
                sprintf(cVal,"%x",iVal);
                break;

            case 'o':  // outp command: O0 5A or o 0 AB
            case 'O':
                sscanf(Cmd+1,"%x %x",&iAddr,&iVal);
                //sprintf(cVal,"%x",iVal);
                outp(iAddr,iVal);
                sprintf(cVal,"%x",iVal);
                break;
            default:
                return 0;           // return error
        };
        strcpy(Response,cVal);  // return I/O value
        return 1;               // return OK
    }
    return 0;                   // return ERROR
}

int VcomUserBinaryCmd(TCPREADDATA *p)
{
    /* 
    VXCOMM.EXE 2.6.12(04,Sep,2001) or later will support this function.

    Xserver executes this function when received a package 
    form TCP port 10000 and the first two bytes are "23".
    
    Please refer to XDemo04 for detail description.
    Please refer to XDemo23 for example code.
    */
    return 1;   /* any value will be accept */
}

int VcomCmdUser(TCPREADDATA *p)  
{ 
    /*
    VCOM3005 (Feb,22,2002) or later will call this function for PortUser.
    When packets received by TCP PORT PortUser(user defined) 
    of 7188E/8000E, Xserver will call this function.

    Please refer to XDemo04 for detail description.
    */
    VcomSendSocket(p->Socket,p->ReadUartChar,p->Length);
    return 1;   /* any value will be accept */  
}

void PortUserStart(int skt)
{
    /* 
    XS8_3200.Lib Version 3.2.00 (20,Apr,2004) 
    or later version supports this function.
    
    When a TCP/IP client connects to the 7188E/8000E via the user's 
    defined port(PortUser), the Xserver calls the function once.

    Please refer to XDemo04 for detail description.
    */
    
    skt=skt; //do nothing
}
  
void Port9999Start(int skt)
{
    /* 
    XS8_3200.Lib Version 3.2.00 (20,Apr,2004) 
    or later version supports this function.
    
    When a TCP/IP client connects to the 7188E/8000E TCP port 9999, 
    the Xserver calls the function once.
 
    Please refer to XDemo04 for detail description.
    */
    
    skt=skt; //do nothing
}
 
void Port502Start(int skt)
{
    /* 
    XS8_3200.Lib Version 3.2.00 (20,Apr,2004) 
    or later version supports this function.
    
    When a TCP/IP client connects to the 7188E/8000E TCP port 502, 
    the Xserver calls the function once.
    
    Please refer to XDemo04 for detail description.
    */
    
    skt=skt; //do nothing
}