usr.sbin/acpi/acpidump/acpidump.c

   1 /*-
   2  * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD: src/usr.sbin/acpi/acpidump/acpidump.c,v 1.11 2004/10/05 20:45: 05 njl Exp $
  27  *      $DragonFly: src/usr.sbin/acpi/acpidump/acpidump.c,v 1.3 2007/01/10 08:44:29 hsu Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <assert.h>
  32 #include <err.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <unistd.h>
  37
  38 #include "acpidump.h"
  39
  40 int     dflag;  /* Disassemble AML using iasl(8) */
  41 int     tflag;  /* Dump contents of SDT tables */
  42 int     vflag;  /* Use verbose messages */
  43
  44 static void
  45 usage(const char *progname)
  46 {
  47
  48         fprintf(stderr, "usage: %s [-d] [-t] [-h] [-v] [-f dsdt_input] "
  49                         "[-o dsdt_output]\n", progname);
  50         exit(1);
  51 }
  52
  53 int
  54 main(int argc, char *argv[])
  55 {
  56         char    c, *progname;
  57         char    *dsdt_input_file, *dsdt_output_file;
  58         struct  ACPIsdt *rsdt, *sdt;
  59
  60         dsdt_input_file = dsdt_output_file = NULL;
  61         progname = argv[0];
  62
  63         if (argc < 2)
  64                 usage(progname);
  65
  66         while ((c = getopt(argc, argv, "dhtvf:o:")) != -1) {
  67                 switch (c) {
  68                 case 'd':
  69                         dflag = 1;
  70                         break;
  71                 case 't':
  72                         tflag = 1;
  73                         break;
  74                 case 'v':
  75                         vflag = 1;
  76                         break;
  77                 case 'f':
  78                         dsdt_input_file = optarg;
  79                         break;
  80                 case 'o':
  81                         dsdt_output_file = optarg;
  82                         break;
  83                 case 'h':
  84                 default:
  85                         usage(progname);
  86                         /* NOTREACHED */
  87                 }
  88         }
  89         argc -= optind;
  90         argv += optind;
  91
  92         /* Get input either from file or /dev/mem */
  93         if (dsdt_input_file != NULL) {
  94                 if (dflag == 0 && tflag == 0) {
  95                         warnx("Need to specify -d or -t with DSDT input file");
  96                         usage(progname);
  97                 } else if (tflag != 0) {
  98                         warnx("Can't use -t with DSDT input file");
  99                         usage(progname);
 100                 }
 101                 if (vflag)
 102                         warnx("loading DSDT file: %s", dsdt_input_file);
 103                 rsdt = dsdt_load_file(dsdt_input_file);
 104         } else {
 105                 if (vflag)
 106                         warnx("loading RSD PTR from /dev/mem");
 107                 rsdt = sdt_load_devmem();
 108         }
 109
 110         /* Display misc. SDT tables (only available when using /dev/mem) */
 111         if (tflag) {
 112                 if (vflag)
 113                         warnx("printing various SDT tables");
 114                 sdt_print_all(rsdt);
 115         }
 116
 117         /* Translate RSDT to DSDT pointer */
 118         if (dsdt_input_file == NULL) {
 119                 sdt = sdt_from_rsdt(rsdt, "FACP", NULL);
 120                 sdt = dsdt_from_fadt((struct FADTbody *)sdt->body);
 121         } else {
 122                 sdt = rsdt;
 123                 rsdt = NULL;
 124         }
 125
 126         /* Dump the DSDT to a file */
 127         if (dsdt_output_file != NULL) {
 128                 if (vflag)
 129                         warnx("saving DSDT file: %s", dsdt_output_file);
 130                 dsdt_save_file(dsdt_output_file, rsdt, sdt);
 131         }
 132
 133         /* Disassemble the DSDT into ASL */
 134         if (dflag) {
 135                 if (vflag)
 136                         warnx("disassembling DSDT, iasl messages follow");
 137                 aml_disassemble(rsdt, sdt);
 138                 if (vflag)
 139                         warnx("iasl processing complete");
 140         }
 141
 142         exit(0);
 143 }