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      1 /*	$NetBSD: platid.c,v 1.11 2006/05/10 06:24:02 skrll Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999-2001
      5  *         Shin Takemura and PocketBSD Project. All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the PocketBSD project
     18  *	and its contributors.
     19  * 4. Neither the name of the project nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  */
     36 
     37 #include <sys/cdefs.h>
     38 #if !defined(_WIN32)	/* XXX: hpcboot.exe */
     39 __KERNEL_RCSID(0, "$NetBSD: platid.c,v 1.11 2006/05/10 06:24:02 skrll Exp $");
     40 #endif
     41 
     42 #include <sys/types.h>
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 
     46 #include <machine/platid.h>
     47 
     48 platid_t platid_unknown = {{ PLATID_UNKNOWN, PLATID_UNKNOWN }};
     49 platid_t platid_wild = {{ PLATID_WILD, PLATID_WILD }};
     50 platid_t platid = {{ PLATID_UNKNOWN, PLATID_UNKNOWN }};
     51 
     52 void
     53 platid_ntoh(platid_t *pid)
     54 {
     55 
     56 	pid->dw.dw0 = ntohl(pid->dw.dw0);
     57 	pid->dw.dw1 = ntohl(pid->dw.dw1);
     58 }
     59 
     60 void
     61 platid_hton(platid_t *pid)
     62 {
     63 
     64 	pid->dw.dw0 = htonl(pid->dw.dw0);
     65 	pid->dw.dw1 = htonl(pid->dw.dw1);
     66 }
     67 
     68 #ifdef PLATID_TEST
     69 void
     70 platid_dump(const char *name, void* pxx)
     71 {
     72 	int i;
     73 	unsigned char* p = (unsigned char*)pxx;
     74 
     75 	printf("%14s: ", name);
     76 
     77 	for (i = 0; i < 8; i++) {
     78 		printf("%02x", p[i]);
     79 	}
     80 	printf("\n");
     81 }
     82 #endif
     83 
     84 int
     85 platid_match(platid_t *pid, platid_mask_t *mask)
     86 {
     87 
     88 	return (platid_match_sub(pid, mask, 0));
     89 }
     90 
     91 int
     92 platid_match_sub(platid_t *pid, platid_mask_t *mask, int unknown_is_match)
     93 {
     94 	int match_count;
     95 
     96 #define PLATID_MATCH(mbr)				\
     97 	if (pid->s.mbr != mask->s.mbr &&		\
     98 	    mask->s.mbr != platid_wild.s.mbr &&		\
     99 	    !(pid->s.mbr == platid_unknown.s.mbr &&	\
    100 	     unknown_is_match)) {			\
    101 		return (0);				\
    102 	} else if (pid->s.mbr == mask->s.mbr) {		\
    103 		match_count++;				\
    104 	}
    105 
    106 	match_count = 1;
    107 	PLATID_MATCH(cpu_submodel);
    108 	PLATID_MATCH(cpu_model);
    109 	PLATID_MATCH(cpu_series);
    110 	PLATID_MATCH(cpu_arch);
    111 
    112 	PLATID_MATCH(submodel);
    113 	PLATID_MATCH(model);
    114 	PLATID_MATCH(series);
    115 	PLATID_MATCH(vendor);
    116 
    117 	return (match_count);
    118 
    119 #undef PLATID_MATCH
    120 }
    121 
    122 const tchar *
    123 platid_name(platid_t *pid)
    124 {
    125 	struct platid_name *match;
    126 
    127 	match = platid_search(pid,
    128 	    platid_name_table, platid_name_table_size,
    129 	    sizeof(struct platid_name));
    130 
    131 	return ((match != NULL) ? match->name : TEXT("UNKNOWN"));
    132 }
    133 
    134 struct platid_data *
    135 platid_search_data(platid_t *pid, struct platid_data *datap)
    136 {
    137 
    138 	while (datap->mask != NULL && !platid_match(pid, datap->mask))
    139 		datap++;
    140 	if (datap->mask == NULL && datap->data == NULL)
    141 		return (NULL);
    142 
    143 	return (datap);
    144 }
    145 
    146 void *
    147 platid_search(platid_t *pid, void *base, int nmemb, int size)
    148 {
    149 	int i, match_level, res;
    150 	void *match;
    151 
    152 	match_level = 0;
    153 	match = NULL;
    154 	for (i = 0; i < nmemb; i++) {
    155 		res = platid_match(pid, *(platid_mask_t**)base);
    156 		if (match_level < res) {
    157 			match_level = res;
    158 			match = base;
    159 		}
    160 		base = (char *)base + size;
    161 	}
    162 
    163 	return (match);
    164 }
    165