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 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 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