1 /* $NetBSD: acpidump.c,v 1.7 2017/08/04 06:30:36 msaitoh Exp $ */ 2 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: head/usr.sbin/acpi/acpidump/acpidump.c 302788 2016-07-13 22:53:30Z andrew $ 29 */ 30 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: acpidump.c,v 1.7 2017/08/04 06:30:36 msaitoh Exp $"); 33 34 35 #include <sys/param.h> 36 #include <assert.h> 37 #include <err.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <unistd.h> 42 43 #include "acpidump.h" 44 45 int cflag; /* Dump unknown table data as characters */ 46 int dflag; /* Disassemble AML using iasl(8) */ 47 int sflag; /* Skip tables with bad checksums */ 48 int tflag; /* Dump contents of SDT tables */ 49 int vflag; /* Use verbose messages */ 50 51 __dead static void 52 usage(void) 53 { 54 const char *progname = getprogname(); 55 56 fprintf(stderr, "usage: %s [-cdhstv] " 57 "[-f dsdt_input] [-o dsdt_output]\n", progname); 58 fprintf(stderr, "To send ASL:\n\t%s -dt | gzip -c9 > foo.asl.gz\n", 59 progname); 60 exit(EXIT_FAILURE); 61 } 62 63 int 64 main(int argc, char *argv[]) 65 { 66 ACPI_TABLE_HEADER *rsdt, *sdt; 67 int c; 68 char *dsdt_input_file, *dsdt_output_file; 69 70 dsdt_input_file = dsdt_output_file = NULL; 71 72 if (argc < 2) 73 usage(); 74 75 while ((c = getopt(argc, argv, "cdhtsvf:o:")) != -1) { 76 switch (c) { 77 case 'c': 78 cflag = 1; 79 break; 80 case 'd': 81 dflag = 1; 82 break; 83 case 's': 84 sflag = 1; 85 break; 86 case 't': 87 tflag = 1; 88 break; 89 case 'v': 90 vflag = 1; 91 break; 92 case 'f': 93 dsdt_input_file = optarg; 94 break; 95 case 'o': 96 dsdt_output_file = optarg; 97 break; 98 case 'h': 99 default: 100 usage(); 101 /* NOTREACHED */ 102 } 103 } 104 argc -= optind; 105 argv += optind; 106 107 /* Get input either from file or /dev/mem */ 108 if (dsdt_input_file != NULL) { 109 if (dflag == 0 && tflag == 0) { 110 warnx("Need to specify -d or -t with DSDT input file"); 111 usage(); 112 } else if (tflag != 0) { 113 warnx("Can't use -t with DSDT input file"); 114 usage(); 115 } 116 if (vflag) 117 warnx("loading DSDT file: %s", dsdt_input_file); 118 rsdt = dsdt_load_file(dsdt_input_file); 119 } else { 120 if (vflag) 121 warnx("loading RSD PTR from /dev/mem"); 122 rsdt = sdt_load_devmem(); 123 } 124 125 /* Display misc. SDT tables (only available when using /dev/mem) */ 126 if (tflag) { 127 if (vflag) 128 warnx("printing various SDT tables"); 129 sdt_print_all(rsdt); 130 } 131 132 /* Translate RSDT to DSDT pointer */ 133 if (dsdt_input_file == NULL) { 134 sdt = sdt_from_rsdt(rsdt, ACPI_SIG_FADT, NULL); 135 sdt = dsdt_from_fadt((ACPI_TABLE_FADT *)sdt); 136 } else { 137 sdt = rsdt; 138 rsdt = NULL; 139 } 140 141 /* Dump the DSDT and SSDTs to a file */ 142 if (dsdt_output_file != NULL) { 143 if (vflag) 144 warnx("saving DSDT file: %s", dsdt_output_file); 145 dsdt_save_file(dsdt_output_file, rsdt, sdt); 146 } 147 148 /* Disassemble the DSDT into ASL */ 149 if (dflag) { 150 if (vflag) 151 warnx("disassembling DSDT, iasl messages follow"); 152 aml_disassemble(rsdt, sdt); 153 if (vflag) 154 warnx("iasl processing complete"); 155 } 156 157 exit(EXIT_SUCCESS); 158 } 159