usr/src/sys/hp300/stand/autoconf.c

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * from: Utah $Hdr: autoconf.c 1.13 91/01/21$
 *
 *      @(#)autoconf.c  7.5 (Berkeley) 5/7/91
 */

#include "samachdep.h"
#include "sys/param.h"

#include "../dev/device.h"
#include "../dev/grfvar.h"

struct hp_hw sc_table[MAXCTLRS];

extern int internalhpib;

#if 0
#include "rominfo.h"
printrominfo()
{
        struct rominfo *rp = (struct rominfo *)ROMADDR;
        printf("boottype %x, name %s, lowram %x, sysflag %x\n",
               rp->boottype, rp->name, rp->lowram, rp->sysflag&0xff);
        printf("rambase %x, ndrives %x, sysflag2 %x, msus %x\n",
               rp->rambase, rp->ndrives, rp->sysflag2&0xff, rp->msus);
}
#endif

configure()
{
        find_devs();
        cninit();
#if 0
        printrominfo();
#endif
        hpibinit();
        scsiinit();
}

sctoaddr(sc)
        int sc;
{
        if (sc == -1)
                return(GRFIADDR);
        if (sc == 7 && internalhpib)
                return(internalhpib);
        if (sc < 32)
                return(DIOBASE + sc * DIOCSIZE);
        if (sc >= 132)
                return(DIOIIBASE + (sc - 132) * DIOIICSIZE);
        return(sc);
}

/*
 * Probe all DIO select codes (0 - 32), the internal display address,
 * and DIO-II select codes (132 - 256).
 *
 * Note that we only care about displays, SCSIs and HP-IBs.
 */
find_devs()
{
        short sc, sctop;
        u_char *id_reg;
        register caddr_t addr;
        register struct hp_hw *hw;
        extern int machineid;

        hw = sc_table;
        sctop = machineid == HP_320 ? 32 : 256;
        for (sc = -1; sc < sctop; sc++) {
                if (sc >= 32 && sc < 132)
                        continue;
                addr = (caddr_t) sctoaddr(sc);
                if (badaddr(addr))
                        continue;

                id_reg = (u_char *) addr;
                hw->hw_pa = addr;
                if (sc >= 132)
                        hw->hw_size = (id_reg[0x101] + 1) * 0x100000;
                else
                        hw->hw_size = DIOCSIZE;
                hw->hw_kva = addr;
                hw->hw_id = id_reg[1];
                hw->hw_sc = sc;

                /*
                 * Not all internal HP-IBs respond rationally to id requests
                 * so we just go by the "internal HPIB" indicator in SYSFLAG.
                 */
                if (sc == 7 && internalhpib) {
                        hw->hw_type = C_HPIB;
                        hw++;
                        continue;
                }

                switch (hw->hw_id) {
                case 5:         /* 98642A */
                case 5+128:     /* 98642A remote */
                        hw->hw_type = D_COMMDCM;
                        break;
                case 8:         /* 98625B */
                case 128:       /* 98624A */
                        hw->hw_type = C_HPIB;
                        break;
                case 57:        /* Displays */
                        hw->hw_type = D_BITMAP;
                        hw->hw_secid = id_reg[0x15];
                        switch (hw->hw_secid) {
                        case 4: /* renaissance */
                        case 8: /* davinci */
                                sc++;           /* occupy 2 select codes */
                                break;
                        }
                        break;
                case 9:
                        hw->hw_type = D_KEYBOARD;
                        break;
                case 7:
                case 7+32:
                case 7+64:
                case 7+96:
                        hw->hw_type = C_SCSI;
                        break;
                default:        /* who cares */
                        hw->hw_type = D_MISC;
                        break;
                }
                hw++;
        }
}