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 * $FreeBSD$ 29 */ 30 31 #include <sys/param.h> 32 #include <assert.h> 33 #include <err.h> 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <unistd.h> 38 39 #include "acpidump.h" 40 41 int dflag; /* Disassemble AML using iasl(8) */ 42 int tflag; /* Dump contents of SDT tables */ 43 int vflag; /* Use verbose messages */ 44 45 static void 46 usage(const char *progname) 47 { 48 49 fprintf(stderr, "usage: %s [-d] [-t] [-h] [-v] [-f dsdt_input] " 50 "[-o dsdt_output]\n", progname); 51 fprintf(stderr, "To send ASL:\n\t%s -dt | gzip -c9 > foo.asl.gz\n", 52 progname); 53 exit(1); 54 } 55 56 int 57 main(int argc, char *argv[]) 58 { 59 ACPI_TABLE_HEADER *rsdt, *sdt; 60 int c; 61 char *progname; 62 char *dsdt_input_file, *dsdt_output_file; 63 64 dsdt_input_file = dsdt_output_file = NULL; 65 progname = argv[0]; 66 67 if (argc < 2) 68 usage(progname); 69 70 while ((c = getopt(argc, argv, "dhtvf:o:")) != -1) { 71 switch (c) { 72 case 'd': 73 dflag = 1; 74 break; 75 case 't': 76 tflag = 1; 77 break; 78 case 'v': 79 vflag = 1; 80 break; 81 case 'f': 82 dsdt_input_file = optarg; 83 break; 84 case 'o': 85 dsdt_output_file = optarg; 86 break; 87 case 'h': 88 default: 89 usage(progname); 90 /* NOTREACHED */ 91 } 92 } 93 argc -= optind; 94 argv += optind; 95 96 /* Get input either from file or /dev/mem */ 97 if (dsdt_input_file != NULL) { 98 if (dflag == 0 && tflag == 0) { 99 warnx("Need to specify -d or -t with DSDT input file"); 100 usage(progname); 101 } else if (tflag != 0) { 102 warnx("Can't use -t with DSDT input file"); 103 usage(progname); 104 } 105 if (vflag) 106 warnx("loading DSDT file: %s", dsdt_input_file); 107 rsdt = dsdt_load_file(dsdt_input_file); 108 } else { 109 if (vflag) 110 warnx("loading RSD PTR from /dev/mem"); 111 rsdt = sdt_load_devmem(); 112 } 113 114 /* Display misc. SDT tables (only available when using /dev/mem) */ 115 if (tflag) { 116 if (vflag) 117 warnx("printing various SDT tables"); 118 sdt_print_all(rsdt); 119 } 120 121 /* Translate RSDT to DSDT pointer */ 122 if (dsdt_input_file == NULL) { 123 sdt = sdt_from_rsdt(rsdt, ACPI_SIG_FADT, NULL); 124 sdt = dsdt_from_fadt((ACPI_TABLE_FADT *)sdt); 125 } else { 126 sdt = rsdt; 127 rsdt = NULL; 128 } 129 130 /* Dump the DSDT and SSDTs to a file */ 131 if (dsdt_output_file != NULL) { 132 if (vflag) 133 warnx("saving DSDT file: %s", dsdt_output_file); 134 dsdt_save_file(dsdt_output_file, rsdt, sdt); 135 } 136 137 /* Disassemble the DSDT into ASL */ 138 if (dflag) { 139 if (vflag) 140 warnx("disassembling DSDT, iasl messages follow"); 141 aml_disassemble(rsdt, sdt); 142 if (vflag) 143 warnx("iasl processing complete"); 144 } 145 146 exit(0); 147 } 148