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]\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 62 dsdt_input_file = dsdt_output_file = NULL; 63 progname = argv[0]; 64 65 if (argc < 2) 66 usage(progname); 67 68 while ((c = getopt(argc, argv, "dhtvf:o:")) != -1) { 69 switch (c) { 70 case 'd': 71 dflag = 1; 72 break; 73 case 't': 74 tflag = 1; 75 break; 76 case 'v': 77 vflag = 1; 78 break; 79 case 'f': 80 dsdt_input_file = optarg; 81 break; 82 case 'o': 83 dsdt_output_file = optarg; 84 break; 85 case 'h': 86 default: 87 usage(progname); 88 /* NOTREACHED */ 89 } 90 } 91 argc -= optind; 92 argv += optind; 93 94 /* Get input either from file or /dev/mem */ 95 if (dsdt_input_file != NULL) { 96 if (dflag == 0 && tflag == 0) { 97 warnx("Need to specify -d or -t with DSDT input file"); 98 usage(progname); 99 } else if (tflag != 0) { 100 warnx("Can't use -t with DSDT input file"); 101 usage(progname); 102 } 103 if (vflag) 104 warnx("loading DSDT file: %s", dsdt_input_file); 105 rsdt = dsdt_load_file(dsdt_input_file); 106 } else { 107 if (vflag) 108 warnx("loading RSD PTR from /dev/mem"); 109 rsdt = sdt_load_devmem(); 110 } 111 112 /* Display misc. SDT tables (only available when using /dev/mem) */ 113 if (tflag) { 114 if (vflag) 115 warnx("printing various SDT tables"); 116 sdt_print_all(rsdt); 117 } 118 119 /* Translate RSDT to DSDT pointer */ 120 if (dsdt_input_file == NULL) { 121 sdt = sdt_from_rsdt(rsdt, ACPI_SIG_FADT, NULL); 122 sdt = dsdt_from_fadt((ACPI_TABLE_FADT *)sdt); 123 } else { 124 sdt = rsdt; 125 rsdt = NULL; 126 } 127 128 /* Dump the DSDT and SSDTs to a file */ 129 if (dsdt_output_file != NULL) { 130 if (vflag) 131 warnx("saving DSDT file: %s", dsdt_output_file); 132 dsdt_save_file(dsdt_output_file, rsdt, sdt); 133 } 134 135 /* Disassemble the DSDT into ASL */ 136 if (dflag) { 137 if (vflag) 138 warnx("disassembling DSDT, iasl messages follow"); 139 aml_disassemble(rsdt, sdt); 140 if (vflag) 141 warnx("iasl processing complete"); 142 } 143 144 exit(0); 145 } 146