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

//

// Filename:    mdioscope.cpp

//

// Project:     XuLA2-LX25 SoC based upon the ZipCPU

//

// Purpose:     

//

// Creator:     Dan Gisselquist, Ph.D.

//              Gisselquist Technology, LLC

//

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

//

// Copyright (C) 2015-2016, 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.

//

// You should have received a copy of the GNU General Public License along

// with this program.  (It's in the $(ROOT)/doc directory, run make with no

// target there if the PDF file isn't present.)  If not, see

// <http://www.gnu.org/licenses/> for a copy.

//

// 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 "port.h"

#include "regdefs.h"

#include "scopecls.h"

#define WBSCOPE         R_NETSCOPE

#define WBSCOPEDATA     R_NETSCOPED

FPGA    *m_fpga;

void    closeup(int v) {

        m_fpga->kill();

        exit(0);

}

class   MDIOSCOPE : public SCOPE {

public:

        MDIOSCOPE(FPGA *fpga, unsigned addr, bool vecread)

                : SCOPE(fpga, addr, false, false) {};

        ~MDIOSCOPE(void) {}

        virtual void    decode(DEVBUS::BUSW val) const {

                int     wbstall, wbstb, wbwe, wbaddr,

                        wback, rclk, zclk, zreg, wbdata, regpos, ctstate, rpend,

                        mdclk, mdwe, omdio, imdio;

                wbstall = (val>>31)&1;

                wbstb   = (val>>30)&1;

                wbwe    = (val>>29)&1;

                wbaddr  = (val>>24)&0x01f;

                wback   = (val>>23)&1;

                wbdata  = (val>>16)&0x03f;

                rclk    = (val>>22)&1;

                zreg    = (val>>10)&1;

                zclk    = (val>>9)&1;

                regpos  = (val>>8)&0x3f;

                rpend   = (val>>7)&1;

                ctstate = (val>>4)&7;

                mdclk = (val&8)?1:0;

                mdwe  = (val&4)?1:0;

                omdio = (val&2)?1:0;

                imdio = (val&1)?1:0;

                printf("WB[%s%s@%2x -> %s%s/%04x] (%d%d%d,%2d,%2x%s) MDIO[%s%s %d-%d]",

                        (wbstb)?"STB":"   ", (wbwe)?"WE":"  ", (wbaddr),

                        (wback)?"ACK":"   ",(wbstall)?"STALL":"     ", (wbdata),

                        zclk, rclk, zreg, regpos, ctstate,

                        (rpend)?"R":" ",

                        (mdclk)?"CLK":"   ", (mdwe)?"WE":"  ",(omdio),(imdio));

        }

};

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

        FPGAOPEN(m_fpga);

        signal(SIGSTOP, closeup);

        signal(SIGHUP, closeup);

        MDIOSCOPE *scope = new MDIOSCOPE(m_fpga, WBSCOPE, false);

        if (!scope->ready()) {

                printf("Scope is not yet ready:\n");

                scope->decode_control();

        } else

                scope->read();

        delete  m_fpga;

}