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acpidump.c revision 1.2 
      1 /* $NetBSD: acpidump.c,v 1.2 2009/12/22 08:44:03 cegger Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki (at) 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: acpidump.c,v 1.2 2009/12/22 08:44:03 cegger 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 }
    151