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scsipiconf.c revision 1.9
      1 /*	$NetBSD: scsipiconf.c,v 1.9 2000/05/15 16:35:49 dante Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Charles M. Hannum.
      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 NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Originally written by Julian Elischer (julian (at) tfs.com)
     41  * for TRW Financial Systems for use under the MACH(2.5) operating system.
     42  *
     43  * TRW Financial Systems, in accordance with their agreement with Carnegie
     44  * Mellon University, makes this software available to CMU to distribute
     45  * or use in any manner that they see fit as long as this message is kept with
     46  * the software. For this reason TFS also grants any other persons or
     47  * organisations permission to use or modify this software.
     48  *
     49  * TFS supplies this software to be publicly redistributed
     50  * on the understanding that TFS is not responsible for the correct
     51  * functioning of this software in any circumstances.
     52  *
     53  * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992
     54  */
     55 
     56 #include <sys/types.h>
     57 #include <sys/param.h>
     58 #include <sys/systm.h>
     59 #include <sys/malloc.h>
     60 #include <sys/device.h>
     61 
     62 #include <dev/scsipi/scsipi_all.h>
     63 #include <dev/scsipi/scsipiconf.h>
     64 
     65 /*
     66  * Return a priority based on how much of the inquiry data matches
     67  * the patterns for the particular driver.
     68  */
     69 caddr_t
     70 scsipi_inqmatch(inqbuf, base, nmatches, matchsize, bestpriority)
     71 	struct scsipi_inquiry_pattern *inqbuf;
     72 	caddr_t base;
     73 	int nmatches, matchsize;
     74 	int *bestpriority;
     75 {
     76 	u_int8_t type;
     77 	caddr_t bestmatch;
     78 
     79 	/* Include the qualifier to catch vendor-unique types. */
     80 	type = inqbuf->type;
     81 
     82 	for (*bestpriority = 0, bestmatch = 0; nmatches--; base += matchsize) {
     83 		struct scsipi_inquiry_pattern *match = (void *)base;
     84 		int priority, len;
     85 
     86 		if (type != match->type)
     87 			continue;
     88 		if (inqbuf->removable != match->removable)
     89 			continue;
     90 		priority = 2;
     91 		len = strlen(match->vendor);
     92 		if (bcmp(inqbuf->vendor, match->vendor, len))
     93 			continue;
     94 		priority += len;
     95 		len = strlen(match->product);
     96 		if (bcmp(inqbuf->product, match->product, len))
     97 			continue;
     98 		priority += len;
     99 		len = strlen(match->revision);
    100 		if (bcmp(inqbuf->revision, match->revision, len))
    101 			continue;
    102 		priority += len;
    103 
    104 #ifdef SCSIDEBUG
    105 		printf("scsipi_inqmatch: %d/%d/%d <%s, %s, %s>\n",
    106 		    priority, match->type, match->removable,
    107 		    match->vendor, match->product, match->revision);
    108 #endif
    109 		if (priority > *bestpriority) {
    110 			*bestpriority = priority;
    111 			bestmatch = base;
    112 		}
    113 	}
    114 
    115 	return (bestmatch);
    116 }
    117 
    118 char *
    119 scsipi_dtype(type)
    120 	int type;
    121 {
    122 	char *dtype;
    123 
    124 	switch (type) {
    125 	case T_DIRECT:
    126 		dtype = "direct";
    127 		break;
    128 	case T_SEQUENTIAL:
    129 		dtype = "sequential";
    130 		break;
    131 	case T_PRINTER:
    132 		dtype = "printer";
    133 		break;
    134 	case T_PROCESSOR:
    135 		dtype = "processor";
    136 		break;
    137 	case T_WORM:
    138 		dtype = "worm";
    139 		break;
    140 	case T_CDROM:
    141 		dtype = "cdrom";
    142 		break;
    143 	case T_SCANNER:
    144 		dtype = "scanner";
    145 		break;
    146 	case T_OPTICAL:
    147 		dtype = "optical";
    148 		break;
    149 	case T_CHANGER:
    150 		dtype = "changer";
    151 		break;
    152 	case T_COMM:
    153 		dtype = "communication";
    154 		break;
    155 	case T_IT8_1:
    156 	case T_IT8_2:
    157 		dtype = "graphic arts pre-press";
    158 		break;
    159 	case T_STORARRAY:
    160 		dtype = "storage array";
    161 		break;
    162 	case T_ENCLOSURE:
    163 		dtype = "enclosure services";
    164 		break;
    165 	case T_SIMPLE_DIRECT:
    166 		dtype = "simplified direct";
    167 		break;
    168 	case T_OPTIC_CARD_RW:
    169 		dtype = "optical card r/w";
    170 		break;
    171 	case T_OBJECT_STORED:
    172 		dtype = "object-based storage";
    173 		break;
    174 	case T_NODEVICE:
    175 		panic("scsipi_dtype: impossible device type");
    176 	default:
    177 		dtype = "unknown";
    178 		break;
    179 	}
    180 	return (dtype);
    181 }
    182 
    183 void
    184 scsipi_strvis(dst, dlen, src, slen)
    185 	u_char *dst, *src;
    186 	int dlen, slen;
    187 {
    188 
    189 	/* Trim leading and trailing blanks and NULs. */
    190 	while (slen > 0 && (src[0] == ' ' || src[0] == '\0'))
    191 		++src, --slen;
    192 	while (slen > 0 && (src[slen-1] == ' ' || src[slen-1] == '\0'))
    193 		--slen;
    194 
    195 	while (slen > 0) {
    196 		if (*src < 0x20 || *src >= 0x80) {
    197 			/* non-printable characters */
    198 			dlen -= 4;
    199 			if (dlen < 1)
    200 				break;
    201 			*dst++ = '\\';
    202 			*dst++ = ((*src & 0300) >> 6) + '0';
    203 			*dst++ = ((*src & 0070) >> 3) + '0';
    204 			*dst++ = ((*src & 0007) >> 0) + '0';
    205 		} else if (*src == '\\') {
    206 			/* quote characters */
    207 			dlen -= 2;
    208 			if (dlen < 1)
    209 				break;
    210 			*dst++ = '\\';
    211 			*dst++ = '\\';
    212 		} else {
    213 			/* normal characters */
    214 			if (--dlen < 1)
    215 				break;
    216 			*dst++ = *src;
    217 		}
    218 		++src, --slen;
    219 	}
    220 
    221 	*dst++ = 0;
    222 }
    223