Subversion Repositories xulalx25soc

////////////////////////////////////////////////////////////////////////////////

//

// Filename:    wbregs.cpp

//

// Project:     XuLA2 board

//

// Purpose:     To give a user access, via a command line program, to read

//              and write wishbone registers one at a time.  Thus this program

//              implements readio() and writeio() but nothing more.

//

//

// Creator:     Dan Gisselquist, Ph.D.

//              Gisselquist Technology, LLC

//

////////////////////////////////////////////////////////////////////////////////

//

// Copyright (C) 2015, Gisselquist Technology, LLC

//

// This program is free software (firmware): you can redistribute it and/or

// modify it under the terms of  the GNU General Public License as published

// by the Free Software Foundation, either version 3 of the License, or (at

// your option) any later version.

//

// This program is distributed in the hope that it will be useful, but WITHOUT

// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// License:     GPL, v3, as defined and found on www.gnu.org,

//              http://www.gnu.org/licenses/gpl.html

//

//

////////////////////////////////////////////////////////////////////////////////

//

//

//

//

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <strings.h>

#include <ctype.h>

#include <string.h>

#include <signal.h>

#include <assert.h>

#include "llcomms.h"

#include "usbi.h"

#include "port.h"

#include "regdefs.h"

FPGA    *m_fpga;

void    closeup(int v) {

        m_fpga->kill();

        exit(0);

}

int main(int argc, char **argv) {

        int     skp=0, port = FPGAPORT;

        bool    use_usb = true;

        skp=1;

        for(int argn=0; argn<argc-skp; argn++) {

                if (argv[argn+skp][0] == '-') {

                        if (argv[argn+skp][1] == 'u')

                                use_usb = true;

                        else if (argv[argn+skp][1] == 'p') {

                                use_usb = false;

                                if (isdigit(argv[argn+skp][2]))

                                        port = atoi(&argv[argn+skp][2]);

                        }

                        skp++; argn--;

                } else

                        argv[argn] = argv[argn+skp];

        } argc -= skp;

        if (use_usb)

                m_fpga = new FPGA(new USBI());

        else

                m_fpga = new FPGA(new NETCOMMS(FPGAHOST, port));

        signal(SIGSTOP, closeup);

        signal(SIGHUP, closeup);

        if ((argc < 1)||(argc > 2)) {

                // usage();

                printf("USAGE: wbregs address [value]\n");

                exit(-1);

        }

        const char *nm;

        unsigned address = addrdecode(argv[0]), value;

        nm = addrname(address);

        if (nm == NULL)

                nm = "no name";

        if (argc < 2) {

                FPGA::BUSW      v;

                try {

                        unsigned char a, b, c, d;

                        v = m_fpga->readio(address);

                        a = (v>>24)&0x0ff;

                        b = (v>>16)&0x0ff;

                        c = (v>> 8)&0x0ff;

                        d = (v    )&0x0ff;

                        printf("%08x (%8s) : [%c%c%c%c] %08x\n", address, nm,

                                isgraph(a)?a:'.', isgraph(b)?b:'.',

                                isgraph(c)?c:'.', isgraph(d)?d:'.', v);

                } catch(BUSERR b) {

                        printf("%08x (%8s) : BUS-ERROR\n", address, nm);

                }

        } else {

                value = strtoul(argv[1], NULL, 0);

                m_fpga->writeio(address, value);

                printf("%08x (%8s)-> %08x\n", address, nm, value);

        }

        if (m_fpga->poll())

                printf("FPGA was interrupted\n");

        delete  m_fpga;

}