usr.sbin/acpitools/acpidump/acpidump.c

   1 /* $NetBSD: $ */
   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: src/usr.sbin/acpi/acpidump/acpidump.c,v 1.13 2009/08/25 20:35:57 jhb Exp $
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __RCSID("$NetBSD: acpi.c,v 1.4 2008/02/13 18:59:18 drochner 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     dflag;  /* Disassemble AML using iasl(8) */
  46 int     tflag;  /* Dump contents of SDT tables */
  47 int     vflag;  /* Use verbose messages */
  48
  49 static void
  50 usage(void)
  51 {
  52         const char *progname = getprogname();
  53
  54         fprintf(stderr, "usage: %s [-d] [-t] [-h] [-v] [-f dsdt_input] "
  55                         "[-o dsdt_output]\n", progname);
  56         fprintf(stderr, "To send ASL:\n\t%s -dt | gzip -c9 > foo.asl.gz\n",
  57             progname);
  58         exit(EXIT_FAILURE);
  59 }
  60
  61 int
  62 main(int argc, char *argv[])
  63 {
  64         ACPI_TABLE_HEADER *rsdt, *sdt;
  65         char    c;
  66         char    *dsdt_input_file, *dsdt_output_file;
  67
  68         dsdt_input_file = dsdt_output_file = NULL;
  69
  70         if (argc < 2)
  71                 usage();
  72
  73         while ((c = getopt(argc, argv, "dhtvf:o:")) != -1) {
  74                 switch (c) {
  75                 case 'd':
  76                         dflag = 1;
  77                         break;
  78                 case 't':
  79                         tflag = 1;
  80                         break;
  81                 case 'v':
  82                         vflag = 1;
  83                         break;
  84                 case 'f':
  85                         dsdt_input_file = optarg;
  86                         break;
  87                 case 'o':
  88                         dsdt_output_file = optarg;
  89                         break;
  90                 case 'h':
  91                 default:
  92                         usage();
  93                         /* NOTREACHED */
  94                 }
  95         }
  96         argc -= optind;
  97         argv += optind;
  98
  99         /* Get input either from file or /dev/mem */
 100         if (dsdt_input_file != NULL) {
 101                 if (dflag == 0 && tflag == 0) {
 102                         warnx("Need to specify -d or -t with DSDT input file");
 103                         usage();
 104                 } else if (tflag != 0) {
 105                         warnx("Can't use -t with DSDT input file");
 106                         usage();
 107                 }
 108                 if (vflag)
 109                         warnx("loading DSDT file: %s", dsdt_input_file);
 110                 rsdt = dsdt_load_file(dsdt_input_file);
 111         } else {
 112                 if (vflag)
 113                         warnx("loading RSD PTR from /dev/mem");
 114                 rsdt = sdt_load_devmem();
 115         }
 116
 117         /* Display misc. SDT tables (only available when using /dev/mem) */
 118         if (tflag) {
 119                 if (vflag)
 120                         warnx("printing various SDT tables");
 121                 sdt_print_all(rsdt);
 122         }
 123
 124         /* Translate RSDT to DSDT pointer */
 125         if (dsdt_input_file == NULL) {
 126                 sdt = sdt_from_rsdt(rsdt, ACPI_SIG_FADT, NULL);
 127                 sdt = dsdt_from_fadt((ACPI_TABLE_FADT *)sdt);
 128         } else {
 129                 sdt = rsdt;
 130                 rsdt = NULL;
 131         }
 132
 133         /* Dump the DSDT and SSDTs to a file */
 134         if (dsdt_output_file != NULL) {
 135                 if (vflag)
 136                         warnx("saving DSDT file: %s", dsdt_output_file);
 137                 dsdt_save_file(dsdt_output_file, rsdt, sdt);
 138         }
 139
 140         /* Disassemble the DSDT into ASL */
 141         if (dflag) {
 142                 if (vflag)
 143                         warnx("disassembling DSDT, iasl messages follow");
 144                 aml_disassemble(rsdt, sdt);
 145                 if (vflag)
 146                         warnx("iasl processing complete");
 147         }
 148
 149         exit(EXIT_SUCCESS);
 150 }