Annotation of Net2/arch/hp300/stand/autoconf.c, revision 1.1.1.2

1.1       root        1: /*
                      2:  * Copyright (c) 1988 University of Utah.
                      3:  * Copyright (c) 1990 The Regents of the University of California.
                      4:  * All rights reserved.
                      5:  *
                      6:  * This code is derived from software contributed to Berkeley by
                      7:  * the Systems Programming Group of the University of Utah Computer
                      8:  * Science Department.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
                     20:  *     This product includes software developed by the University of
                     21:  *     California, Berkeley and its contributors.
                     22:  * 4. Neither the name of the University nor the names of its contributors
                     23:  *    may be used to endorse or promote products derived from this software
                     24:  *    without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     36:  * SUCH DAMAGE.
                     37:  *
                     38:  * from: Utah $Hdr: autoconf.c 1.13 91/01/21$
                     39:  *
1.1.1.2 ! root       40:  *     from: @(#)autoconf.c    7.5 (Berkeley) 5/7/91
        !            41:  *     autoconf.c,v 1.2 1993/05/22 07:58:43 cgd Exp
1.1       root       42:  */
                     43: 
                     44: #include "samachdep.h"
                     45: #include "sys/param.h"
                     46: 
                     47: #include "../dev/device.h"
                     48: #include "../dev/grfvar.h"
                     49: 
                     50: struct hp_hw sc_table[MAXCTLRS];
                     51: 
                     52: extern int internalhpib;
                     53: 
                     54: #if 0
                     55: #include "rominfo.h"
                     56: printrominfo()
                     57: {
                     58:        struct rominfo *rp = (struct rominfo *)ROMADDR;
                     59:        printf("boottype %x, name %s, lowram %x, sysflag %x\n",
                     60:               rp->boottype, rp->name, rp->lowram, rp->sysflag&0xff);
                     61:        printf("rambase %x, ndrives %x, sysflag2 %x, msus %x\n",
                     62:               rp->rambase, rp->ndrives, rp->sysflag2&0xff, rp->msus);
                     63: }
                     64: #endif
                     65: 
                     66: configure()
                     67: {
                     68:        find_devs();
                     69:        cninit();
                     70: #if 0
                     71:        printrominfo();
                     72: #endif
                     73:        hpibinit();
                     74:        scsiinit();
                     75: }
                     76: 
                     77: sctoaddr(sc)
                     78:        int sc;
                     79: {
                     80:        if (sc == -1)
                     81:                return(GRFIADDR);
                     82:        if (sc == 7 && internalhpib)
                     83:                return(internalhpib);
                     84:        if (sc < 32)
                     85:                return(DIOBASE + sc * DIOCSIZE);
                     86:        if (sc >= 132)
                     87:                return(DIOIIBASE + (sc - 132) * DIOIICSIZE);
                     88:        return(sc);
                     89: }
                     90: 
                     91: /*
                     92:  * Probe all DIO select codes (0 - 32), the internal display address,
                     93:  * and DIO-II select codes (132 - 256).
                     94:  *
                     95:  * Note that we only care about displays, SCSIs and HP-IBs.
                     96:  */
                     97: find_devs()
                     98: {
                     99:        short sc, sctop;
                    100:        u_char *id_reg;
                    101:        register caddr_t addr;
                    102:        register struct hp_hw *hw;
                    103:        extern int machineid;
                    104: 
                    105:        hw = sc_table;
                    106:        sctop = machineid == HP_320 ? 32 : 256;
                    107:        for (sc = -1; sc < sctop; sc++) {
                    108:                if (sc >= 32 && sc < 132)
                    109:                        continue;
                    110:                addr = (caddr_t) sctoaddr(sc);
                    111:                if (badaddr(addr))
                    112:                        continue;
                    113: 
                    114:                id_reg = (u_char *) addr;
                    115:                hw->hw_pa = addr;
                    116:                if (sc >= 132)
                    117:                        hw->hw_size = (id_reg[0x101] + 1) * 0x100000;
                    118:                else
                    119:                        hw->hw_size = DIOCSIZE;
                    120:                hw->hw_kva = addr;
                    121:                hw->hw_id = id_reg[1];
                    122:                hw->hw_sc = sc;
                    123: 
                    124:                /*
                    125:                 * Not all internal HP-IBs respond rationally to id requests
                    126:                 * so we just go by the "internal HPIB" indicator in SYSFLAG.
                    127:                 */
                    128:                if (sc == 7 && internalhpib) {
                    129:                        hw->hw_type = C_HPIB;
                    130:                        hw++;
                    131:                        continue;
                    132:                }
                    133: 
                    134:                switch (hw->hw_id) {
                    135:                case 5:         /* 98642A */
                    136:                case 5+128:     /* 98642A remote */
                    137:                        hw->hw_type = D_COMMDCM;
                    138:                        break;
                    139:                case 8:         /* 98625B */
                    140:                case 128:       /* 98624A */
                    141:                        hw->hw_type = C_HPIB;
                    142:                        break;
                    143:                case 57:        /* Displays */
                    144:                        hw->hw_type = D_BITMAP;
                    145:                        hw->hw_secid = id_reg[0x15];
                    146:                        switch (hw->hw_secid) {
                    147:                        case 4: /* renaissance */
                    148:                        case 8: /* davinci */
                    149:                                sc++;           /* occupy 2 select codes */
                    150:                                break;
                    151:                        }
                    152:                        break;
                    153:                case 9:
                    154:                        hw->hw_type = D_KEYBOARD;
                    155:                        break;
                    156:                case 7:
                    157:                case 7+32:
                    158:                case 7+64:
                    159:                case 7+96:
                    160:                        hw->hw_type = C_SCSI;
                    161:                        break;
                    162:                default:        /* who cares */
                    163:                        hw->hw_type = D_MISC;
                    164:                        break;
                    165:                }
                    166:                hw++;
                    167:        }
                    168: }

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