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

//

// Filename:    scopecls.cpp

//

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

//

// Purpose:     After rebuilding the same code over and over again for every

//              "scope" I tried to interact with, I thought it would be simpler

//      to try to make a more generic interface, that other things could plug

//      into.  This is that more generic interface.

//

// 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 "devbus.h"

#include "scopecls.h"

bool    SCOPE::ready() {

        unsigned v;

        v = m_fpga->readio(m_addr);

        if (m_scoplen == 0) {

                m_scoplen = (1<<((v>>20)&0x01f));

        } v = (v>>28)&6;

        return (v==6);

}

void    SCOPE::decode_control(void) {

        unsigned        v;

        v = m_fpga->readio(m_addr);

        printf("\t31. RESET:\t%s\n", (v&0x80000000)?"Ongoing":"Complete");

        printf("\t30. STOPPED:\t%s\n", (v&0x40000000)?"Yes":"No");

        printf("\t29. TRIGGERED:\t%s\n", (v&0x20000000)?"Yes":"No");

        printf("\t28. PRIMED:\t%s\n", (v&0x10000000)?"Yes":"No");

        printf("\t27. MANUAL:\t%s\n", (v&0x08000000)?"Yes":"No");

        printf("\t26. DISABLED:\t%s\n", (v&0x04000000)?"Yes":"No");

        printf("\t25. ZERO:\t%s\n", (v&0x02000000)?"Yes":"No");

        printf("\tSCOPLEN:\t%08x (%d)\n", m_scoplen, m_scoplen);

        printf("\tHOLDOFF:\t%08x\n", (v&0x0fffff));

        printf("\tTRIGLOC:\t%d\n", m_scoplen-(v&0x0fffff));

}

int     SCOPE::scoplen(void) {

        if (m_scoplen == 0) {

                int     lgln = (m_fpga->readio(m_addr)>>20)&0x01f;

                m_scoplen = (1<<lgln);

        } return m_scoplen;

}

void    SCOPE::read(void) {

        DEVBUS::BUSW    addrv = 0;

        scoplen();

        if (m_scoplen <= 4) {

                printf("Not a scope?\n");

        }

        DEVBUS::BUSW    *buf;

        buf = new DEVBUS::BUSW[m_scoplen];

        if (m_vector_read) {

                m_fpga->readz(m_addr+1, m_scoplen, buf);

        } else {

                for(unsigned int i=0; i<m_scoplen; i++)

                        buf[i] = m_fpga->readio(m_addr+1);

        }

        if(m_compressed) {

                for(int i=0; i<(int)m_scoplen; i++) {

                        if ((buf[i]>>31)&1) {

                                addrv += (buf[i]&0x7fffffff);

                                printf(" ** (+0x%08x = %8d)\n",

                                        (buf[i]&0x07fffffff),

                                        (buf[i]&0x07fffffff));

                                continue;

                        }

                        printf("%10d %08x: ", addrv++, buf[i]);

                        decode(buf[i]);

                        printf("\n");

                }

        } else {

                for(int i=0; i<(int)m_scoplen; i++) {

                        if ((i>0)&&(buf[i] == buf[i-1])&&(i<(int)(m_scoplen-1))) {

                                if ((i>2)&&(buf[i] != buf[i-2]))

                                        printf(" **** ****\n");

                                continue;

                        } printf("%9d %08x: ", i, buf[i]);

                        decode(buf[i]);

                        printf("\n");

                }

        }

        delete[] buf;

}