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autoconf.c revision 1.1
      1 /*	$NetBSD: autoconf.c,v 1.1 1997/02/04 03:52:14 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1990, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  * from: Utah Hdr: autoconf.c 1.16 92/05/29
     41  *
     42  *	@(#)autoconf.c	8.1 (Berkeley) 6/10/93
     43  */
     44 
     45 #include <sys/param.h>
     46 #include <sys/reboot.h>
     47 
     48 #include <hp300/stand/common/samachdep.h>
     49 #include <hp300/stand/common/rominfo.h>
     50 #include <hp300/stand/common/device.h>
     51 
     52 #include <hp300/dev/grfreg.h>
     53 
     54 /*
     55  * Mapping of ROM MSUS types to BSD major device numbers
     56  * WARNING: major numbers must match bdevsw indices in hp300/conf.c.
     57  */
     58 char rom2mdev[] = {
     59 	0, 0, 						/* 0-1: none */
     60 	6,	/* 2: network device; special */
     61 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,		/* 3-13: none */
     62 	4,	/* 14: SCSI disk */
     63 	0,	/* 15: none */
     64 	2,	/* 16: CS/80 device on HPIB */
     65 	2,	/* 17: CS/80 device on HPIB */
     66 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,	/* 18-31: none */
     67 };
     68 
     69 struct hp_hw sc_table[MAXCTLRS];
     70 int cpuspeed;
     71 
     72 extern int internalhpib;
     73 
     74 #ifdef PRINTROMINFO
     75 printrominfo()
     76 {
     77 	struct rominfo *rp = (struct rominfo *)ROMADDR;
     78 
     79 	printf("boottype %x, name %s, lowram %x, sysflag %x\n",
     80 	       rp->boottype, rp->name, rp->lowram, rp->sysflag&0xff);
     81 	printf("rambase %x, ndrives %x, sysflag2 %x, msus %x\n",
     82 	       rp->rambase, rp->ndrives, rp->sysflag2&0xff, rp->msus);
     83 }
     84 #endif
     85 
     86 configure()
     87 {
     88 	u_long msustobdev();
     89 
     90 	switch (machineid) {
     91 	case HP_320:
     92 	case HP_330:
     93 	case HP_340:
     94 		cpuspeed = MHZ_16;
     95 		break;
     96 	case HP_350:
     97 	case HP_360:
     98 		cpuspeed = MHZ_25;
     99 		break;
    100 	case HP_370:
    101 		cpuspeed = MHZ_33;
    102 		break;
    103 	case HP_375:
    104 		cpuspeed = MHZ_50;
    105 		break;
    106 	case HP_380:
    107 		cpuspeed = MHZ_25 * 2;	/* XXX */
    108 		break;
    109 	case HP_433:
    110 		cpuspeed = MHZ_33 * 2;	/* XXX */
    111 		break;
    112 	default:	/* assume the fastest (largest delay value) */
    113 		cpuspeed = MHZ_50;
    114 		break;
    115 	}
    116 	find_devs();
    117 	cninit();
    118 #ifdef PRINTROMINFO
    119 	printrominfo();
    120 #endif
    121 	hpibinit();
    122 	scsiinit();
    123 	if ((bootdev & B_MAGICMASK) != B_DEVMAGIC)
    124 		bootdev = msustobdev();
    125 }
    126 
    127 /*
    128  * Convert HP MSUS to a valid bootdev layout:
    129  *	TYPE comes from MSUS device type as mapped by rom2mdev
    130  *	PARTITION is set to 0 ('a')
    131  *	UNIT comes from MSUS unit (almost always 0)
    132  *	CONTROLLER comes from MSUS primary address
    133  *	ADAPTER comes from SCSI/HPIB driver logical unit number
    134  *		(passed back via unused hw_pa field)
    135  */
    136 u_long
    137 msustobdev()
    138 {
    139 	struct rominfo *rp = (struct rominfo *) ROMADDR;
    140 	u_long bdev = 0;
    141 	register struct hp_hw *hw;
    142 	int sc, type, ctlr, slave, punit;
    143 
    144 	sc = (rp->msus >> 8) & 0xFF;
    145 	for (hw = sc_table; hw < &sc_table[MAXCTLRS]; hw++)
    146 		if (hw->hw_sc == sc)
    147 			break;
    148 
    149 	type  = rom2mdev[(rp->msus >> 24) & 0x1F];
    150 	ctlr  = (int)hw->hw_pa;
    151 	slave = (rp->msus & 0xFF);
    152 	punit = ((rp->msus >> 16) & 0xFF);
    153 
    154 	bdev  = MAKEBOOTDEV(type, ctlr, slave, punit, 0);
    155 
    156 #ifdef PRINTROMINFO
    157 	printf("msus %x -> bdev %x\n", rp->msus, bdev);
    158 #endif
    159 	return (bdev);
    160 }
    161 
    162 sctoaddr(sc)
    163 	int sc;
    164 {
    165 	if (sc == -1)
    166 		return(GRFIADDR);
    167 	if (sc == 7 && internalhpib)
    168 		return(internalhpib);
    169 	if (sc < 32)
    170 		return(DIOBASE + sc * DIOCSIZE);
    171 	if (sc >= 132)
    172 		return(DIOIIBASE + (sc - 132) * DIOIICSIZE);
    173 	return(sc);
    174 }
    175 
    176 /*
    177  * Probe all DIO select codes (0 - 32), the internal display address,
    178  * and DIO-II select codes (132 - 256).
    179  *
    180  * Note that we only care about displays, LANCEs, SCSIs and HP-IBs.
    181  */
    182 find_devs()
    183 {
    184 	short sc, sctop;
    185 	u_char *id_reg;
    186 	register caddr_t addr;
    187 	register struct hp_hw *hw;
    188 
    189 	hw = sc_table;
    190 	sctop = machineid == HP_320 ? 32 : 256;
    191 	for (sc = -1; sc < sctop; sc++) {
    192 		if (sc >= 32 && sc < 132)
    193 			continue;
    194 		addr = (caddr_t) sctoaddr(sc);
    195 		if (badaddr(addr))
    196 			continue;
    197 
    198 		id_reg = (u_char *) addr;
    199 		hw->hw_pa = 0;	/* XXX used to pass back LUN from driver */
    200 		if (sc >= 132)
    201 			hw->hw_size = (id_reg[0x101] + 1) * 0x100000;
    202 		else
    203 			hw->hw_size = DIOCSIZE;
    204 		hw->hw_kva = addr;
    205 		hw->hw_id = id_reg[1];
    206 		hw->hw_sc = sc;
    207 
    208 		/*
    209 		 * Not all internal HP-IBs respond rationally to id requests
    210 		 * so we just go by the "internal HPIB" indicator in SYSFLAG.
    211 		 */
    212 		if (sc == 7 && internalhpib) {
    213 			hw->hw_type = C_HPIB;
    214 			hw++;
    215 			continue;
    216 		}
    217 
    218 		switch (hw->hw_id) {
    219 		case 5:		/* 98642A */
    220 		case 5+128:	/* 98642A remote */
    221 			hw->hw_type = D_COMMDCM;
    222 			break;
    223 		case 8:		/* 98625B */
    224 		case 128:	/* 98624A */
    225 			hw->hw_type = C_HPIB;
    226 			break;
    227 		case 21:	/* LANCE */
    228 			hw->hw_type = D_LAN;
    229 			break;
    230 		case 57:	/* Displays */
    231 			hw->hw_type = D_BITMAP;
    232 			hw->hw_secid = id_reg[0x15];
    233 			switch (hw->hw_secid) {
    234 			case 4:	/* renaissance */
    235 			case 8: /* davinci */
    236 				sc++;		/* occupy 2 select codes */
    237 				break;
    238 			}
    239 			break;
    240 		case 9:
    241 			hw->hw_type = D_KEYBOARD;
    242 			break;
    243 		case 7:
    244 		case 7+32:
    245 		case 7+64:
    246 		case 7+96:
    247 			hw->hw_type = C_SCSI;
    248 			break;
    249 		default:	/* who cares */
    250 			hw->hw_type = D_MISC;
    251 			break;
    252 		}
    253 		hw++;
    254 	}
    255 }
    256