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#include <stdio.h>
#include "y.tab.h"
#include "config.h"

/*
 * mkioconf.c	1.9	81/07/09
 * ioconf:
 *	Build the ioconf.c file
 */
char *qu();

ioconf()
{
    register struct device *dp, *mp, *np;
    register int uba_n, slave;
    char *intv();
    FILE *fp;

    fp = fopen(LOCAL("ioconf.c"), "w");
    if (fp == NULL) {
	perror(LOCAL("ioconf.c"));
	exit(1);
    }
    fprintf(fp, "#include \"../h/param.h\"\n");
    fprintf(fp, "#include \"../h/pte.h\"\n");
    fprintf(fp, "#include \"../h/buf.h\"\n");
    fprintf(fp, "#include \"../h/map.h\"\n");
    fprintf(fp, "#include \"../h/mbavar.h\"\n");
    fprintf(fp, "#include \"../h/vm.h\"\n");
    fprintf(fp, "#include \"../h/ubavar.h\"\n\n");
    fprintf(fp, "#define C (caddr_t)\n\n");
    /*
     * First print the mba initialization structures
     */
    if (seen_mba)
    {
	for (dp = dtab; dp != NULL; dp = dp->d_next)
	{
	    mp = dp->d_conn;
	    if (mp == NULL || mp == TO_NEXUS || !eq(mp->d_name, "mba"))
		continue;
	    fprintf(fp, "extern struct mba_driver %sdriver;\n", dp->d_name);
	}
	fprintf(fp, "\nstruct mba_device mbdinit[] = {\n");
	fprintf(fp, "\t/* Device,  Unit, Mba, Drive, Dk */\n");
	for (dp = dtab; dp != NULL; dp = dp->d_next)
	{
	    mp = dp->d_conn;
	    if (dp->d_unit == QUES || mp == NULL || mp == TO_NEXUS || !eq(mp->d_name, "mba"))
		continue;
	    if (dp->d_addr) {
		printf("can't specify csr address on mba for %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    if (dp->d_vec != NULL) {
		printf("can't specify vector for %s%d on mba\n",
			dp->d_name, dp->d_unit);
		continue;
	    }
	    if (dp->d_drive == UNKNOWN) {
		printf("drive not specified for %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    if (dp->d_slave != UNKNOWN) {
		printf("can't specify slave number for %s%d\n", 
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    fprintf(fp, "\t{ &%sdriver, %d,   %s,  %s,    %d },\n",
		dp->d_name, dp->d_unit, qu(mp->d_unit),
		qu(dp->d_drive), dp->d_dk);
	}
	fprintf(fp, "\t0\n};\n\n");
	/*
	 * Print the mbsinit structure
	 * Driver Controller Unit Slave
	 */
	fprintf(fp, "struct mba_slave mbsinit [] = {\n");
	fprintf(fp, "\t/* Driver,  Ctlr, Unit, Slave */\n");
	for (dp = dtab; dp != NULL; dp = dp->d_next)
	{
	    /*
	     * All slaves are connected to something which is connected to
	     * the massbus.
	     */
	    if ((mp = dp->d_conn) == NULL || mp == TO_NEXUS)
		continue;
	    np = mp->d_conn;
	    if (np == NULL || np == TO_NEXUS || !eq(np->d_name, "mba"))
		continue;
	    fprintf(fp, "\t{ &%sdriver, %s,  %2d,    %d },\n",
		mp->d_name, qu(mp->d_unit), dp->d_unit, dp->d_slave);
	}
	fprintf(fp, "\t0\n};\n\n");
    }
    /*
     * Now generate interrupt vectors for the unibus
     */
    for (dp = dtab; dp != NULL; dp = dp->d_next) {
	if (dp->d_vec != NULL) {
	    struct idlst *ip;
	    mp = dp->d_conn;
	    if (mp == NULL || mp == TO_NEXUS || !eq(mp->d_name, "uba"))
		continue;
	    fprintf(fp, "extern struct uba_driver %sdriver;\n", dp->d_name);
	    fprintf(fp, "extern ");
	    ip = dp->d_vec;
	    for (;;) {
		fprintf(fp, "X%s%d()", ip->id, dp->d_unit);
		ip = ip->id_next;
		if (ip == 0)
		    break;
		fprintf(fp, ", ");
	    }
	    fprintf(fp, ";\n");
	    fprintf(fp, "int\t (*%sint%d[])() = { ", dp->d_name, dp->d_unit);
	    ip = dp->d_vec;
	    for (;;) {
		fprintf(fp, "X%s%d", ip->id, dp->d_unit);
		ip = ip->id_next;
		if (ip == 0)
		    break;
		fprintf(fp, ", ");
	    }
	    fprintf(fp, ", 0 } ;\n");
	}
    }
    /*
     * Now spew forth the uba_minfo structure
     */
    fprintf(fp, "\nstruct uba_ctlr ubminit[] = {\n");
    fprintf(fp, "/*\t driver,\tctlr,\tubanum,\talive,\tintr,\taddr */\n");
    for (dp = dtab; dp != NULL; dp = dp->d_next) {
	mp = dp->d_conn;
	if (dp->d_type != CONTROLLER || mp == TO_NEXUS || mp == NULL || !eq(mp->d_name, "uba"))
	    continue;
	if (dp->d_vec == 0) {
	    printf("must specify vector for %s%d\n", dp->d_name, dp->d_unit);
	    continue;
	}
	if (dp->d_addr == 0) {
	    printf("must specify csr address for %s%d\n",
		dp->d_name, dp->d_unit);
	    continue;
	}
	if (dp->d_drive != UNKNOWN || dp->d_slave != UNKNOWN) {
	    printf("drives need their own entries; dont specify drive or slave for %s%d\n",
		dp->d_name, dp->d_unit);
	    continue;
	}
	if (dp->d_flags) {
	    printf("controllers (e.g. %s%d) don't have flags, only devices do\n",
		dp->d_name, dp->d_unit);
	    continue;
	}
	fprintf(fp, "\t{ &%sdriver,\t%d,\t%s,\t0,\t%sint%d, C 0%o },\n",
	    dp->d_name, dp->d_unit, qu(mp->d_unit),
	    dp->d_name, dp->d_unit, dp->d_addr);
    }
    fprintf(fp, "\t0\n};\n");
    /*
     * Now we go for the uba_device stuff
     */
    fprintf(fp, "\nstruct uba_device ubdinit[] = {\n");
    fprintf(fp, "\t/* driver,  unit, ctlr,  ubanum, slave,   intr,    addr,    dk, flags*/\n");
    for (dp = dtab; dp != NULL; dp = dp->d_next) {
	mp = dp->d_conn;
	if (dp->d_unit == QUES || dp->d_type != DEVICE || mp == NULL ||
		mp == TO_NEXUS || mp->d_type == MASTER || eq(mp->d_name, "mba"))
	    continue;
        np = mp->d_conn;
        if (np != NULL && np != TO_NEXUS && eq(np->d_name, "mba"))
	    continue;
	np = NULL;
	if (eq(mp->d_name, "uba")) {
	    if (dp->d_vec == 0) {
		printf("must specify vector for device %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    if (dp->d_addr == 0) {
		printf("must specify csr address for device %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    if (dp->d_drive != UNKNOWN || dp->d_slave != UNKNOWN) {
		printf("drives/slaves can be specified only for controllers, not for device %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    uba_n = mp->d_unit;
	    slave = QUES;
	} else {
	    if ((np = mp->d_conn) == NULL) {
		printf("%s%d isn't connected to anything, so %s%d is unattached\n",
		    mp->d_name, mp->d_unit, dp->d_name, dp->d_unit);
		continue;
	    }
	    uba_n = np->d_unit;
	    if (dp->d_drive == UNKNOWN) {
		printf("must specify ``drive number'' for %s%d\n",
		   dp->d_name, dp->d_unit);
		continue;
	    }
	    /* NOTE THAT ON THE UNIBUS ``drive'' IS STORED IN */
	    /* ``SLAVE'' AND WE DON'T WANT A SLAVE SPECIFIED */
	    if (dp->d_slave != UNKNOWN) {
		printf("slave numbers should be given only for massbus tapes, not for %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    if (dp->d_vec != 0) {
		printf("interrupt vectors should not be given for drive %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    if (dp->d_addr != 0) {
		printf("csr addresses should be given only on controllers, not on %s%d\n",
		    dp->d_name, dp->d_unit);
		continue;
	    }
	    slave = dp->d_drive;
	}
	fprintf(fp, "\t{ &%sdriver,  %2d,   %s,  %s,    %2d,   %s, C 0%-6o,  %d,  0x%x },\n",
	    eq(mp->d_name, "uba") ? dp->d_name : mp->d_name, dp->d_unit,
	    eq(mp->d_name, "uba") ? " -1" : qu(mp->d_unit), qu(uba_n),
	    slave, intv(dp), dp->d_addr, dp->d_dk, dp->d_flags);
    }
    fprintf(fp, "\t0\n};\n");
    fclose(fp);
}

/*
 * intv
 *	Return vector name
 */

char *intv(dev)
register struct device *dev;
{
	static char buf[20];

	if (dev->d_vec == NULL)
	    return "     0";
	else {
	    sprintf(buf, "%sint%d", dev->d_name, dev->d_unit);
	    return buf;
	}
}

char *
qu(num)
{
	if (num == QUES)
		return "'?'";
	if(num == UNKNOWN)
		return " -1";
	sprintf(errbuf, "%3d", num);
	return ns(errbuf);
}

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