1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
5 * 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
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
39 int dflag; /* Disassemble AML using iasl(8) */
40 int tflag; /* Dump contents of SDT tables */
41 int vflag; /* Use verbose messages */
42
43 static void
usage(const char * progname)44 usage(const char *progname)
45 {
46
47 fprintf(stderr, "usage: %s [-d] [-t] [-h] [-v] [-f dsdt_input] "
48 "[-o dsdt_output] [-T table_name]\n", progname);
49 fprintf(stderr, "To send ASL:\n\t%s -dt | gzip -c9 > foo.asl.gz\n",
50 progname);
51 exit(1);
52 }
53
54 int
main(int argc,char * argv[])55 main(int argc, char *argv[])
56 {
57 ACPI_TABLE_HEADER *rsdt, *sdt;
58 int c;
59 char *progname;
60 char *dsdt_input_file, *dsdt_output_file;
61 char *tbl = NULL;
62
63 dsdt_input_file = dsdt_output_file = NULL;
64 progname = argv[0];
65
66 if (argc < 2)
67 usage(progname);
68
69 while ((c = getopt(argc, argv, "df:ho:tT:vs")) != -1) {
70 switch (c) {
71 case 'd':
72 dflag = 1;
73 break;
74 case 'T':
75 tbl = optarg;
76 if (strlen(tbl) != 4) {
77 warnx("Illegal table name %s", tbl);
78 usage(progname);
79 }
80 break;
81 case 't':
82 tflag = 1;
83 break;
84 case 'v':
85 vflag = 1;
86 break;
87 case 'f':
88 dsdt_input_file = optarg;
89 break;
90 case 'o':
91 dsdt_output_file = optarg;
92 break;
93 case 's':
94 dflag = 2;
95 break;
96 case 'h':
97 default:
98 usage(progname);
99 /* NOTREACHED */
100 }
101 }
102 argc -= optind;
103 argv += optind;
104
105 /* Get input either from file or /dev/mem */
106 if (dsdt_input_file != NULL) {
107 if (dflag == 0 && tflag == 0) {
108 warnx("Need to specify -d or -t with DSDT input file");
109 usage(progname);
110 } else if (tflag != 0) {
111 warnx("Can't use -t with DSDT input file");
112 usage(progname);
113 }
114 if (vflag)
115 warnx("loading DSDT file: %s", dsdt_input_file);
116 rsdt = dsdt_load_file(dsdt_input_file);
117 } else {
118 if (vflag)
119 warnx("loading RSD PTR from /dev/mem");
120 rsdt = sdt_load_devmem();
121 }
122
123 /* Display misc. SDT tables (only available when using /dev/mem) */
124 if (tflag || tbl != NULL) {
125 if (vflag)
126 warnx("printing various SDT tables");
127 sdt_print_all(rsdt, tbl);
128 }
129
130 /* Translate RSDT to DSDT pointer */
131 if (dsdt_input_file == NULL) {
132 sdt = sdt_from_rsdt(rsdt, ACPI_SIG_FADT, NULL);
133 sdt = dsdt_from_fadt((ACPI_TABLE_FADT *)sdt);
134 } else {
135 sdt = rsdt;
136 rsdt = NULL;
137 }
138
139 /* Dump the DSDT and SSDTs to a file */
140 if (dsdt_output_file != NULL) {
141 if (vflag)
142 warnx("saving DSDT file: %s", dsdt_output_file);
143 dsdt_save_file(dsdt_output_file, rsdt, sdt);
144 }
145
146 /* Disassemble the DSDT into ASL */
147 if (dflag) {
148 if (vflag)
149 warnx("disassembling DSDT, iasl messages follow");
150 if (dflag == 1) {
151 aml_disassemble(rsdt, sdt);
152 } else {
153 aml_disassemble_separate(rsdt, sdt);
154 }
155 if (vflag)
156 warnx("iasl processing complete");
157 }
158
159 exit(0);
160 }
161