acpidump.c revision 133679 
1/*-
2 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$FreeBSD: head/usr.sbin/acpi/acpidump/acpidump.c 133679 2004-08-13 22:59:09Z marcel $
27 */
28
29#include <sys/param.h>
30#include <assert.h>
31#include <err.h>
32#include <stdio.h>
33#include <stdlib.h>
34#include <string.h>
35#include <unistd.h>
36
37#include "acpidump.h"
38
39int	dflag;	/* Disassemble AML using iasl(8) */
40int	tflag;	/* Dump contents of SDT tables */
41int	vflag;	/* Use verbose messages */
42
43static void
44usage(const char *progname)
45{
46
47	fprintf(stderr, "usage: %s [-d] [-t] [-h] [-v] [-f dsdt_input] "
48			"[-o dsdt_output]\n", progname);
49	exit(1);
50}
51
52int
53main(int argc, char *argv[])
54{
55	char	c, *progname;
56	char	*dsdt_input_file, *dsdt_output_file;
57	struct	ACPIsdt *rsdt, *sdt;
58
59	dsdt_input_file = dsdt_output_file = NULL;
60	progname = argv[0];
61
62	if (argc < 2)
63		usage(progname);
64
65	while ((c = getopt(argc, argv, "dhtvf:o:")) != -1) {
66		switch (c) {
67		case 'd':
68			dflag = 1;
69			break;
70		case 't':
71			tflag = 1;
72			break;
73		case 'v':
74			vflag = 1;
75			break;
76		case 'f':
77			dsdt_input_file = optarg;
78			break;
79		case 'o':
80			dsdt_output_file = optarg;
81			break;
82		case 'h':
83		default:
84			usage(progname);
85			/* NOTREACHED */
86		}
87	}
88	argc -= optind;
89	argv += optind;
90
91	/* Get input either from file or /dev/mem */
92	if (dsdt_input_file != NULL) {
93		if (dflag == 0 && tflag == 0) {
94			warnx("Need to specify -d or -t with DSDT input file");
95			usage(progname);
96		} else if (tflag != 0) {
97			warnx("Can't use -t with DSDT input file");
98			usage(progname);
99		}
100		if (vflag)
101			warnx("loading DSDT file: %s", dsdt_input_file);
102		rsdt = dsdt_load_file(dsdt_input_file);
103	} else {
104		if (vflag)
105			warnx("loading RSD PTR from /dev/mem");
106		rsdt = sdt_load_devmem();
107	}
108
109	/* Display misc. SDT tables (only available when using /dev/mem) */
110	if (tflag) {
111		if (vflag)
112			warnx("printing various SDT tables");
113		sdt_print_all(rsdt);
114	}
115
116	/* Translate RSDT to DSDT pointer */
117	if (dsdt_input_file == NULL) {
118		sdt = sdt_from_rsdt(rsdt, "FACP", NULL);
119		sdt = dsdt_from_fadt((struct FADTbody *)sdt->body);
120	} else {
121		sdt = rsdt;
122		rsdt = NULL;
123	}
124
125	/* Dump the DSDT to a file */
126	if (dsdt_output_file != NULL) {
127		if (vflag)
128			warnx("saving DSDT file: %s", dsdt_output_file);
129		dsdt_save_file(dsdt_output_file, rsdt, sdt);
130	}
131
132	/* Disassemble the DSDT into ASL */
133	if (dflag) {
134		if (vflag)
135			warnx("disassembling DSDT, iasl messages follow");
136		aml_disassemble(rsdt, sdt);
137		if (vflag)
138			warnx("iasl processing complete");
139	}
140
141	exit(0);
142}
143