-PROG= acpidump
-SRCS= acpidump.c
+# tools/power/acpi/Makefile - ACPI tool Makefile
+#
+# Copyright (c) 2013, Intel Corporation
+# Author: Lv Zheng <lv.zheng@intel.com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; version 2
+# of the License.
+
+OUTPUT=./
+ifeq ("$(origin O)", "command line")
+ OUTPUT := $(O)/
+endif
+
+ifneq ($(OUTPUT),)
+# check that the output directory actually exists
+OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
+$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
+endif
+
+# --- CONFIGURATION BEGIN ---
+
+# Set the following to `true' to make a unstripped, unoptimized
+# binary. Leave this set to `false' for production use.
+DEBUG ?= true
+
+# make the build silent. Set this to something else to make it noisy again.
+V ?= false
+
+# Prefix to the directories we're installing to
+DESTDIR ?=
+
+# --- CONFIGURATION END ---
+
+# Directory definitions. These are default and most probably
+# do not need to be changed. Please note that DESTDIR is
+# added in front of any of them
+
+bindir ?= /usr/bin
+sbindir ?= /usr/sbin
+mandir ?= /usr/man
+
+# Toolchain: what tools do we use, and what options do they need:
+
+INSTALL = /usr/bin/install -c
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_DATA = ${INSTALL} -m 644
+INSTALL_SCRIPT = ${INSTALL_PROGRAM}
+
+# If you are running a cross compiler, you may want to set this
+# to something more interesting, like "arm-linux-". If you want
+# to compile vs uClibc, that can be done here as well.
+CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
+CC = $(CROSS)gcc
+LD = $(CROSS)gcc
+STRIP = $(CROSS)strip
+HOSTCC = gcc
+
+# check if compiler option is supported
+cc-supports = ${shell if $(CC) ${1} -S -o /dev/null -x c /dev/null > /dev/null 2>&1; then echo "$(1)"; fi;}
+
+# use '-Os' optimization if available, else use -O2
+OPTIMIZATION := $(call cc-supports,-Os,-O2)
+
+WARNINGS := -Wall
+WARNINGS += $(call cc-supports,-Wstrict-prototypes)
+WARNINGS += $(call cc-supports,-Wdeclaration-after-statement)
+
KERNEL_INCLUDE := ../../../include
-CFLAGS += -Wall -Wstrict-prototypes -Wdeclaration-after-statement -Os -s -D_LINUX -DDEFINE_ALTERNATE_TYPES -I$(KERNEL_INCLUDE)
+CFLAGS += -D_LINUX -DDEFINE_ALTERNATE_TYPES -I$(KERNEL_INCLUDE)
+CFLAGS += $(WARNINGS)
+
+ifeq ($(strip $(V)),false)
+ QUIET=@
+ ECHO=@echo
+else
+ QUIET=
+ ECHO=@\#
+endif
+export QUIET ECHO
+
+# if DEBUG is enabled, then we do not strip or optimize
+ifeq ($(strip $(DEBUG)),true)
+ CFLAGS += -O1 -g -DDEBUG
+ STRIPCMD = /bin/true -Since_we_are_debugging
+else
+ CFLAGS += $(OPTIMIZATION) -fomit-frame-pointer
+ STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
+endif
+
+# if DEBUG is enabled, then we do not strip or optimize
+ifeq ($(strip $(DEBUG)),true)
+ CFLAGS += -O1 -g -DDEBUG
+ STRIPCMD = /bin/true -Since_we_are_debugging
+else
+ CFLAGS += $(OPTIMIZATION) -fomit-frame-pointer
+ STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
+endif
+
+# --- ACPIDUMP BEGIN ---
+
+vpath %.c \
+ tools/acpidump
+
+DUMP_OBJS = \
+ acpidump.o
+
+DUMP_OBJS := $(addprefix $(OUTPUT)tools/acpidump/,$(DUMP_OBJS))
+
+$(OUTPUT)acpidump: $(DUMP_OBJS)
+ $(ECHO) " LD " $@
+ $(QUIET) $(LD) $(CFLAGS) $(LDFLAGS) $(DUMP_OBJS) -L$(OUTPUT) -o $@
+ $(QUIET) $(STRIPCMD) $@
+
+$(OUTPUT)tools/acpidump/%.o: %.c
+ $(ECHO) " CC " $@
+ $(QUIET) $(CC) -c $(CFLAGS) -o $@ $<
+
+# --- ACPIDUMP END ---
+
+all: $(OUTPUT)acpidump
+ echo $(OUTPUT)
+
+clean:
+ -find $(OUTPUT) \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \
+ | xargs rm -f
+ -rm -f $(OUTPUT)acpidump
-all: acpidump
-$(PROG) : $(SRCS)
- $(CC) $(CFLAGS) $(SRCS) -o $(PROG)
+install-tools:
+ $(INSTALL) -d $(DESTDIR)${bindir}
+ $(INSTALL_PROGRAM) $(OUTPUT)acpidump $(DESTDIR)${sbindir}
-CLEANFILES= $(PROG)
+install-man:
+ $(INSTALL_DATA) -D man/acpidump.8 $(DESTDIR)${mandir}/man8/acpidump.8
-clean :
- rm -f $(CLEANFILES) $(patsubst %.c,%.o, $(SRCS)) *~
+install: all install-tools install-man
-install :
- install acpidump /usr/sbin/acpidump
- install acpidump.8 /usr/share/man/man8
+uninstall:
+ - rm -f $(DESTDIR)${sbindir}/acpidump
+ - rm -f $(DESTDIR)${mandir}/man8/acpidump.8
+.PHONY: all utils install-tools install-man install uninstall clean
+++ /dev/null
-.TH ACPIDUMP 8
-.SH NAME
-acpidump \- Dump system's ACPI tables to an ASCII file.
-.SH SYNOPSIS
-.ft B
-.B acpidump > acpidump.out
-.SH DESCRIPTION
-\fBacpidump \fP dumps the systems ACPI tables to an ASCII file
-appropriate for attaching to a bug report.
-
-Subsequently, they can be processed by utilities in the ACPICA package.
-.SS Options
-no options worth worrying about.
-.PP
-.SH EXAMPLE
-
-.nf
-# acpidump > acpidump.out
-
-$ acpixtract -a acpidump.out
- Acpi table [DSDT] - 15974 bytes written to DSDT.dat
- Acpi table [FACS] - 64 bytes written to FACS.dat
- Acpi table [FACP] - 116 bytes written to FACP.dat
- Acpi table [APIC] - 120 bytes written to APIC.dat
- Acpi table [MCFG] - 60 bytes written to MCFG.dat
- Acpi table [SSDT] - 444 bytes written to SSDT1.dat
- Acpi table [SSDT] - 439 bytes written to SSDT2.dat
- Acpi table [SSDT] - 439 bytes written to SSDT3.dat
- Acpi table [SSDT] - 439 bytes written to SSDT4.dat
- Acpi table [SSDT] - 439 bytes written to SSDT5.dat
- Acpi table [RSDT] - 76 bytes written to RSDT.dat
- Acpi table [RSDP] - 20 bytes written to RSDP.dat
-
-$ iasl -d *.dat
-...
-.fi
-creates *.dsl, a human readable form which can be edited
-and compiled using iasl.
-
-
-.SH NOTES
-
-.B "acpidump "
-must be run as root.
-
-.SH REFERENCES
-ACPICA: https://acpica.org/
-
-.SH FILES
-.ta
-.nf
-/dev/mem
-/sys/firmware/acpi/tables/dynamic/*
-.fi
-
-.PP
-.SH AUTHOR
-.nf
-Written by Len Brown <len.brown@intel.com>
+++ /dev/null
-/*
- * (c) Alexey Starikovskiy, Intel, 2005-2006.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#ifdef DEFINE_ALTERNATE_TYPES
-/* hack to enable building old application with new headers -lenb */
-#define acpi_fadt_descriptor acpi_table_fadt
-#define acpi_rsdp_descriptor acpi_table_rsdp
-#define DSDT_SIG ACPI_SIG_DSDT
-#define FACS_SIG ACPI_SIG_FACS
-#define FADT_SIG ACPI_SIG_FADT
-#define xfirmware_ctrl Xfacs
-#define firmware_ctrl facs
-
-typedef int s32;
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-typedef unsigned long long u64;
-typedef long long s64;
-#endif
-
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <getopt.h>
-
-#include <dirent.h>
-
-#include <acpi/acconfig.h>
-#include <acpi/platform/acenv.h>
-#include <acpi/actypes.h>
-#include <acpi/actbl.h>
-
-static inline u8 checksum(u8 * buffer, u32 length)
-{
- u8 sum = 0, *i = buffer;
- buffer += length;
- for (; i < buffer; sum += *(i++));
- return sum;
-}
-
-static unsigned long psz, addr, length;
-static int print, connect, skip;
-static u8 select_sig[4];
-
-static unsigned long read_efi_systab( void )
-{
- char buffer[80];
- unsigned long addr;
- FILE *f = fopen("/sys/firmware/efi/systab", "r");
- if (f) {
- while (fgets(buffer, 80, f)) {
- if (sscanf(buffer, "ACPI20=0x%lx", &addr) == 1)
- return addr;
- }
- fclose(f);
- }
- return 0;
-}
-
-static u8 *acpi_map_memory(unsigned long where, unsigned length)
-{
- unsigned long offset;
- u8 *there;
- int fd = open("/dev/mem", O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "acpi_os_map_memory: cannot open /dev/mem\n");
- exit(1);
- }
- offset = where % psz;
- there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE,
- fd, where - offset);
- close(fd);
- if (there == MAP_FAILED) return 0;
- return (there + offset);
-}
-
-static void acpi_unmap_memory(u8 * there, unsigned length)
-{
- unsigned long offset = (unsigned long)there % psz;
- munmap(there - offset, length + offset);
-}
-
-static struct acpi_table_header *acpi_map_table(unsigned long where, char *sig)
-{
- unsigned size;
- struct acpi_table_header *tbl = (struct acpi_table_header *)
- acpi_map_memory(where, sizeof(struct acpi_table_header));
- if (!tbl || (sig && memcmp(sig, tbl->signature, 4))) return 0;
- size = tbl->length;
- acpi_unmap_memory((u8 *) tbl, sizeof(struct acpi_table_header));
- return (struct acpi_table_header *)acpi_map_memory(where, size);
-}
-
-static void acpi_unmap_table(struct acpi_table_header *tbl)
-{
- acpi_unmap_memory((u8 *)tbl, tbl->length);
-}
-
-static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length)
-{
- struct acpi_rsdp_descriptor *rsdp;
- u8 *i, *end = begin + length;
- /* Search from given start address for the requested length */
- for (i = begin; i < end; i += ACPI_RSDP_SCAN_STEP) {
- /* The signature and checksum must both be correct */
- if (memcmp((char *)i, "RSD PTR ", 8)) continue;
- rsdp = (struct acpi_rsdp_descriptor *)i;
- /* Signature matches, check the appropriate checksum */
- if (!checksum((u8 *) rsdp, (rsdp->revision < 2) ?
- ACPI_RSDP_CHECKSUM_LENGTH :
- ACPI_RSDP_XCHECKSUM_LENGTH))
- /* Checksum valid, we have found a valid RSDP */
- return rsdp;
- }
- /* Searched entire block, no RSDP was found */
- return 0;
-}
-
-/*
- * Output data
- */
-static void acpi_show_data(int fd, u8 * data, int size)
-{
- char buffer[256];
- int len;
- int i, remain = size;
- while (remain > 0) {
- len = snprintf(buffer, 256, " %04x:", size - remain);
- for (i = 0; i < 16 && i < remain; i++) {
- len +=
- snprintf(&buffer[len], 256 - len, " %02x", data[i]);
- }
- for (; i < 16; i++) {
- len += snprintf(&buffer[len], 256 - len, " ");
- }
- len += snprintf(&buffer[len], 256 - len, " ");
- for (i = 0; i < 16 && i < remain; i++) {
- buffer[len++] = (isprint(data[i])) ? data[i] : '.';
- }
- buffer[len++] = '\n';
- write(fd, buffer, len);
- data += 16;
- remain -= 16;
- }
-}
-
-/*
- * Output ACPI table
- */
-static void acpi_show_table(int fd, struct acpi_table_header *table, unsigned long addr)
-{
- char buff[80];
- int len = snprintf(buff, 80, "%.4s @ %p\n", table->signature, (void *)addr);
- write(fd, buff, len);
- acpi_show_data(fd, (u8 *) table, table->length);
- buff[0] = '\n';
- write(fd, buff, 1);
-}
-
-static void write_table(int fd, struct acpi_table_header *tbl, unsigned long addr)
-{
- static int select_done = 0;
- if (!select_sig[0]) {
- if (print) {
- acpi_show_table(fd, tbl, addr);
- } else {
- write(fd, tbl, tbl->length);
- }
- } else if (!select_done && !memcmp(select_sig, tbl->signature, 4)) {
- if (skip > 0) {
- --skip;
- return;
- }
- if (print) {
- acpi_show_table(fd, tbl, addr);
- } else {
- write(fd, tbl, tbl->length);
- }
- select_done = 1;
- }
-}
-
-static void acpi_dump_FADT(int fd, struct acpi_table_header *tbl, unsigned long xaddr) {
- struct acpi_fadt_descriptor x;
- unsigned long addr;
- size_t len = sizeof(struct acpi_fadt_descriptor);
- if (len > tbl->length) len = tbl->length;
- memcpy(&x, tbl, len);
- x.header.length = len;
- if (checksum((u8 *)tbl, len)) {
- fprintf(stderr, "Wrong checksum for FADT!\n");
- }
- if (x.header.length >= 148 && x.Xdsdt) {
- addr = (unsigned long)x.Xdsdt;
- if (connect) {
- x.Xdsdt = lseek(fd, 0, SEEK_CUR);
- }
- } else if (x.header.length >= 44 && x.dsdt) {
- addr = (unsigned long)x.dsdt;
- if (connect) {
- x.dsdt = lseek(fd, 0, SEEK_CUR);
- }
- } else {
- fprintf(stderr, "No DSDT in FADT!\n");
- goto no_dsdt;
- }
- tbl = acpi_map_table(addr, DSDT_SIG);
- if (!tbl) goto no_dsdt;
- if (checksum((u8 *)tbl, tbl->length))
- fprintf(stderr, "Wrong checksum for DSDT!\n");
- write_table(fd, tbl, addr);
- acpi_unmap_table(tbl);
-no_dsdt:
- if (x.header.length >= 140 && x.xfirmware_ctrl) {
- addr = (unsigned long)x.xfirmware_ctrl;
- if (connect) {
- x.xfirmware_ctrl = lseek(fd, 0, SEEK_CUR);
- }
- } else if (x.header.length >= 40 && x.firmware_ctrl) {
- addr = (unsigned long)x.firmware_ctrl;
- if (connect) {
- x.firmware_ctrl = lseek(fd, 0, SEEK_CUR);
- }
- } else {
- fprintf(stderr, "No FACS in FADT!\n");
- goto no_facs;
- }
- tbl = acpi_map_table(addr, FACS_SIG);
- if (!tbl) goto no_facs;
- /* do not checksum FACS */
- write_table(fd, tbl, addr);
- acpi_unmap_table(tbl);
-no_facs:
- write_table(fd, (struct acpi_table_header *)&x, xaddr);
-}
-
-static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp)
-{
- struct acpi_table_header *sdt, *tbl = 0;
- int xsdt = 1, i, num;
- char *offset;
- unsigned long addr;
- if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
- tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT");
- }
- if (!tbl && rsdp->rsdt_physical_address) {
- xsdt = 0;
- tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT");
- }
- if (!tbl) return 0;
- sdt = malloc(tbl->length);
- memcpy(sdt, tbl, tbl->length);
- acpi_unmap_table(tbl);
- if (checksum((u8 *)sdt, sdt->length))
- fprintf(stderr, "Wrong checksum for %s!\n", (xsdt)?"XSDT":"RSDT");
- num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32));
- offset = (char *)sdt + sizeof(struct acpi_table_header);
- for (i = 0; i < num; ++i, offset += ((xsdt) ? sizeof(u64) : sizeof(u32))) {
- addr = (xsdt) ? (unsigned long)(*(u64 *)offset):
- (unsigned long)(*(u32 *)offset);
- if (!addr) continue;
- tbl = acpi_map_table(addr, 0);
- if (!tbl) continue;
- if (!memcmp(tbl->signature, FADT_SIG, 4)) {
- acpi_dump_FADT(fd, tbl, addr);
- } else {
- if (checksum((u8 *)tbl, tbl->length))
- fprintf(stderr, "Wrong checksum for generic table!\n");
- write_table(fd, tbl, addr);
- }
- acpi_unmap_table(tbl);
- if (connect) {
- if (xsdt)
- (*(u64*)offset) = lseek(fd, 0, SEEK_CUR);
- else
- (*(u32*)offset) = lseek(fd, 0, SEEK_CUR);
- }
- }
- if (xsdt) {
- addr = (unsigned long)rsdp->xsdt_physical_address;
- if (connect) {
- rsdp->xsdt_physical_address = lseek(fd, 0, SEEK_CUR);
- }
- } else {
- addr = (unsigned long)rsdp->rsdt_physical_address;
- if (connect) {
- rsdp->rsdt_physical_address = lseek(fd, 0, SEEK_CUR);
- }
- }
- write_table(fd, sdt, addr);
- free (sdt);
- return 1;
-}
-
-#define DYNAMIC_SSDT "/sys/firmware/acpi/tables/dynamic"
-
-static void acpi_dump_dynamic_SSDT(int fd)
-{
- struct stat file_stat;
- char filename[256], *ptr;
- DIR *tabledir;
- struct dirent *entry;
- FILE *fp;
- int count, readcount, length;
- struct acpi_table_header table_header, *ptable;
-
- if (stat(DYNAMIC_SSDT, &file_stat) == -1) {
- /* The directory doesn't exist */
- return;
- }
- tabledir = opendir(DYNAMIC_SSDT);
- if(!tabledir){
- /*can't open the directory */
- return;
- }
-
- while ((entry = readdir(tabledir)) != 0){
- /* skip the file of . /.. */
- if (entry->d_name[0] == '.')
- continue;
-
- sprintf(filename, "%s/%s", DYNAMIC_SSDT, entry->d_name);
- fp = fopen(filename, "r");
- if (fp == NULL) {
- fprintf(stderr, "Can't open the file of %s\n",
- filename);
- continue;
- }
- /* Read the Table header to parse the table length */
- count = fread(&table_header, 1, sizeof(struct acpi_table_header), fp);
- if (count < sizeof(table_header)) {
- /* the length is lessn than ACPI table header. skip it */
- fclose(fp);
- continue;
- }
- length = table_header.length;
- ptr = malloc(table_header.length);
- fseek(fp, 0, SEEK_SET);
- readcount = 0;
- while(!feof(fp) && readcount < length) {
- count = fread(ptr + readcount, 1, 256, fp);
- readcount += count;
- }
- fclose(fp);
- ptable = (struct acpi_table_header *) ptr;
- if (checksum((u8 *) ptable, ptable->length))
- fprintf(stderr, "Wrong checksum "
- "for dynamic SSDT table!\n");
- write_table(fd, ptable, 0);
- free(ptr);
- }
- closedir(tabledir);
- return;
-}
-
-static void usage(const char *progname)
-{
- puts("Usage:");
- printf("%s [--addr 0x1234][--table DSDT][--output filename]"
- "[--binary][--length 0x456][--help]\n", progname);
- puts("\t--addr 0x1234 or -a 0x1234 -- look for tables at this physical address");
- puts("\t--table DSDT or -t DSDT -- only dump table with DSDT signature");
- puts("\t--output filename or -o filename -- redirect output from stdin to filename");
- puts("\t--binary or -b -- dump data in binary form rather than in hex-dump format");
- puts("\t--length 0x456 or -l 0x456 -- works only with --addr, dump physical memory"
- "\n\t\tregion without trying to understand it's contents");
- puts("\t--skip 2 or -s 2 -- skip 2 tables of the given name and output only 3rd one");
- puts("\t--help or -h -- this help message");
- exit(0);
-}
-
-static struct option long_options[] = {
- {"addr", 1, 0, 0},
- {"table", 1, 0, 0},
- {"output", 1, 0, 0},
- {"binary", 0, 0, 0},
- {"length", 1, 0, 0},
- {"skip", 1, 0, 0},
- {"help", 0, 0, 0},
- {0, 0, 0, 0}
-};
-int main(int argc, char **argv)
-{
- int option_index, c, fd;
- u8 *raw;
- struct acpi_rsdp_descriptor rsdpx, *x = 0;
- char *filename = 0;
- char buff[80];
- memset(select_sig, 0, 4);
- print = 1;
- connect = 0;
- addr = length = 0;
- skip = 0;
- while (1) {
- option_index = 0;
- c = getopt_long(argc, argv, "a:t:o:bl:s:h",
- long_options, &option_index);
- if (c == -1)
- break;
-
- switch (c) {
- case 0:
- switch (option_index) {
- case 0:
- addr = strtoul(optarg, (char **)NULL, 16);
- break;
- case 1:
- memcpy(select_sig, optarg, 4);
- break;
- case 2:
- filename = optarg;
- break;
- case 3:
- print = 0;
- break;
- case 4:
- length = strtoul(optarg, (char **)NULL, 16);
- break;
- case 5:
- skip = strtoul(optarg, (char **)NULL, 10);
- break;
- case 6:
- usage(argv[0]);
- exit(0);
- }
- break;
- case 'a':
- addr = strtoul(optarg, (char **)NULL, 16);
- break;
- case 't':
- memcpy(select_sig, optarg, 4);
- break;
- case 'o':
- filename = optarg;
- break;
- case 'b':
- print = 0;
- break;
- case 'l':
- length = strtoul(optarg, (char **)NULL, 16);
- break;
- case 's':
- skip = strtoul(optarg, (char **)NULL, 10);
- break;
- case 'h':
- usage(argv[0]);
- exit(0);
- default:
- printf("Unknown option!\n");
- usage(argv[0]);
- exit(0);
- }
- }
-
- fd = STDOUT_FILENO;
- if (filename) {
- fd = creat(filename, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
- if (fd < 0)
- return fd;
- }
-
- if (!select_sig[0] && !print) {
- connect = 1;
- }
-
- psz = sysconf(_SC_PAGESIZE);
- if (length && addr) {
- /* We know length and address, it means we just want a memory dump */
- if (!(raw = acpi_map_memory(addr, length)))
- goto not_found;
- write(fd, raw, length);
- acpi_unmap_memory(raw, length);
- close(fd);
- return 0;
- }
-
- length = sizeof(struct acpi_rsdp_descriptor);
- if (!addr) {
- addr = read_efi_systab();
- if (!addr) {
- addr = ACPI_HI_RSDP_WINDOW_BASE;
- length = ACPI_HI_RSDP_WINDOW_SIZE;
- }
- }
-
- if (!(raw = acpi_map_memory(addr, length)) ||
- !(x = acpi_scan_for_rsdp(raw, length)))
- goto not_found;
-
- /* Find RSDP and print all found tables */
- memcpy(&rsdpx, x, sizeof(struct acpi_rsdp_descriptor));
- acpi_unmap_memory(raw, length);
- if (connect) {
- lseek(fd, sizeof(struct acpi_rsdp_descriptor), SEEK_SET);
- }
- if (!acpi_dump_SDT(fd, &rsdpx))
- goto not_found;
- if (connect) {
- lseek(fd, 0, SEEK_SET);
- write(fd, x, (rsdpx.revision < 2) ?
- ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
- } else if (!select_sig[0] || !memcmp("RSD PTR ", select_sig, 4)) {
- addr += (long)x - (long)raw;
- length = snprintf(buff, 80, "RSD PTR @ %p\n", (void *)addr);
- write(fd, buff, length);
- acpi_show_data(fd, (u8 *) & rsdpx, (rsdpx.revision < 2) ?
- ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
- buff[0] = '\n';
- write(fd, buff, 1);
- }
- acpi_dump_dynamic_SSDT(fd);
- close(fd);
- return 0;
-not_found:
- close(fd);
- fprintf(stderr, "ACPI tables were not found. If you know location "
- "of RSD PTR table (from dmesg, etc), "
- "supply it with either --addr or -a option\n");
- return 1;
-}
--- /dev/null
+.TH ACPIDUMP 8
+.SH NAME
+acpidump \- Dump system's ACPI tables to an ASCII file.
+.SH SYNOPSIS
+.ft B
+.B acpidump > acpidump.out
+.SH DESCRIPTION
+\fBacpidump \fP dumps the systems ACPI tables to an ASCII file
+appropriate for attaching to a bug report.
+
+Subsequently, they can be processed by utilities in the ACPICA package.
+.SS Options
+no options worth worrying about.
+.PP
+.SH EXAMPLE
+
+.nf
+# acpidump > acpidump.out
+
+$ acpixtract -a acpidump.out
+ Acpi table [DSDT] - 15974 bytes written to DSDT.dat
+ Acpi table [FACS] - 64 bytes written to FACS.dat
+ Acpi table [FACP] - 116 bytes written to FACP.dat
+ Acpi table [APIC] - 120 bytes written to APIC.dat
+ Acpi table [MCFG] - 60 bytes written to MCFG.dat
+ Acpi table [SSDT] - 444 bytes written to SSDT1.dat
+ Acpi table [SSDT] - 439 bytes written to SSDT2.dat
+ Acpi table [SSDT] - 439 bytes written to SSDT3.dat
+ Acpi table [SSDT] - 439 bytes written to SSDT4.dat
+ Acpi table [SSDT] - 439 bytes written to SSDT5.dat
+ Acpi table [RSDT] - 76 bytes written to RSDT.dat
+ Acpi table [RSDP] - 20 bytes written to RSDP.dat
+
+$ iasl -d *.dat
+...
+.fi
+creates *.dsl, a human readable form which can be edited
+and compiled using iasl.
+
+
+.SH NOTES
+
+.B "acpidump "
+must be run as root.
+
+.SH REFERENCES
+ACPICA: https://acpica.org/
+
+.SH FILES
+.ta
+.nf
+/dev/mem
+/sys/firmware/acpi/tables/dynamic/*
+.fi
+
+.PP
+.SH AUTHOR
+.nf
+Written by Len Brown <len.brown@intel.com>
--- /dev/null
+/*
+ * (c) Alexey Starikovskiy, Intel, 2005-2006.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#ifdef DEFINE_ALTERNATE_TYPES
+/* hack to enable building old application with new headers -lenb */
+#define acpi_fadt_descriptor acpi_table_fadt
+#define acpi_rsdp_descriptor acpi_table_rsdp
+#define DSDT_SIG ACPI_SIG_DSDT
+#define FACS_SIG ACPI_SIG_FACS
+#define FADT_SIG ACPI_SIG_FADT
+#define xfirmware_ctrl Xfacs
+#define firmware_ctrl facs
+
+typedef int s32;
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+typedef unsigned long long u64;
+typedef long long s64;
+#endif
+
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include <dirent.h>
+
+#include <acpi/acconfig.h>
+#include <acpi/platform/acenv.h>
+#include <acpi/actypes.h>
+#include <acpi/actbl.h>
+
+static inline u8 checksum(u8 * buffer, u32 length)
+{
+ u8 sum = 0, *i = buffer;
+ buffer += length;
+ for (; i < buffer; sum += *(i++));
+ return sum;
+}
+
+static unsigned long psz, addr, length;
+static int print, connect, skip;
+static u8 select_sig[4];
+
+static unsigned long read_efi_systab( void )
+{
+ char buffer[80];
+ unsigned long addr;
+ FILE *f = fopen("/sys/firmware/efi/systab", "r");
+ if (f) {
+ while (fgets(buffer, 80, f)) {
+ if (sscanf(buffer, "ACPI20=0x%lx", &addr) == 1)
+ return addr;
+ }
+ fclose(f);
+ }
+ return 0;
+}
+
+static u8 *acpi_map_memory(unsigned long where, unsigned length)
+{
+ unsigned long offset;
+ u8 *there;
+ int fd = open("/dev/mem", O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "acpi_os_map_memory: cannot open /dev/mem\n");
+ exit(1);
+ }
+ offset = where % psz;
+ there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE,
+ fd, where - offset);
+ close(fd);
+ if (there == MAP_FAILED) return 0;
+ return (there + offset);
+}
+
+static void acpi_unmap_memory(u8 * there, unsigned length)
+{
+ unsigned long offset = (unsigned long)there % psz;
+ munmap(there - offset, length + offset);
+}
+
+static struct acpi_table_header *acpi_map_table(unsigned long where, char *sig)
+{
+ unsigned size;
+ struct acpi_table_header *tbl = (struct acpi_table_header *)
+ acpi_map_memory(where, sizeof(struct acpi_table_header));
+ if (!tbl || (sig && memcmp(sig, tbl->signature, 4))) return 0;
+ size = tbl->length;
+ acpi_unmap_memory((u8 *) tbl, sizeof(struct acpi_table_header));
+ return (struct acpi_table_header *)acpi_map_memory(where, size);
+}
+
+static void acpi_unmap_table(struct acpi_table_header *tbl)
+{
+ acpi_unmap_memory((u8 *)tbl, tbl->length);
+}
+
+static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length)
+{
+ struct acpi_rsdp_descriptor *rsdp;
+ u8 *i, *end = begin + length;
+ /* Search from given start address for the requested length */
+ for (i = begin; i < end; i += ACPI_RSDP_SCAN_STEP) {
+ /* The signature and checksum must both be correct */
+ if (memcmp((char *)i, "RSD PTR ", 8)) continue;
+ rsdp = (struct acpi_rsdp_descriptor *)i;
+ /* Signature matches, check the appropriate checksum */
+ if (!checksum((u8 *) rsdp, (rsdp->revision < 2) ?
+ ACPI_RSDP_CHECKSUM_LENGTH :
+ ACPI_RSDP_XCHECKSUM_LENGTH))
+ /* Checksum valid, we have found a valid RSDP */
+ return rsdp;
+ }
+ /* Searched entire block, no RSDP was found */
+ return 0;
+}
+
+/*
+ * Output data
+ */
+static void acpi_show_data(int fd, u8 * data, int size)
+{
+ char buffer[256];
+ int len;
+ int i, remain = size;
+ while (remain > 0) {
+ len = snprintf(buffer, 256, " %04x:", size - remain);
+ for (i = 0; i < 16 && i < remain; i++) {
+ len +=
+ snprintf(&buffer[len], 256 - len, " %02x", data[i]);
+ }
+ for (; i < 16; i++) {
+ len += snprintf(&buffer[len], 256 - len, " ");
+ }
+ len += snprintf(&buffer[len], 256 - len, " ");
+ for (i = 0; i < 16 && i < remain; i++) {
+ buffer[len++] = (isprint(data[i])) ? data[i] : '.';
+ }
+ buffer[len++] = '\n';
+ write(fd, buffer, len);
+ data += 16;
+ remain -= 16;
+ }
+}
+
+/*
+ * Output ACPI table
+ */
+static void acpi_show_table(int fd, struct acpi_table_header *table, unsigned long addr)
+{
+ char buff[80];
+ int len = snprintf(buff, 80, "%.4s @ %p\n", table->signature, (void *)addr);
+ write(fd, buff, len);
+ acpi_show_data(fd, (u8 *) table, table->length);
+ buff[0] = '\n';
+ write(fd, buff, 1);
+}
+
+static void write_table(int fd, struct acpi_table_header *tbl, unsigned long addr)
+{
+ static int select_done = 0;
+ if (!select_sig[0]) {
+ if (print) {
+ acpi_show_table(fd, tbl, addr);
+ } else {
+ write(fd, tbl, tbl->length);
+ }
+ } else if (!select_done && !memcmp(select_sig, tbl->signature, 4)) {
+ if (skip > 0) {
+ --skip;
+ return;
+ }
+ if (print) {
+ acpi_show_table(fd, tbl, addr);
+ } else {
+ write(fd, tbl, tbl->length);
+ }
+ select_done = 1;
+ }
+}
+
+static void acpi_dump_FADT(int fd, struct acpi_table_header *tbl, unsigned long xaddr) {
+ struct acpi_fadt_descriptor x;
+ unsigned long addr;
+ size_t len = sizeof(struct acpi_fadt_descriptor);
+ if (len > tbl->length) len = tbl->length;
+ memcpy(&x, tbl, len);
+ x.header.length = len;
+ if (checksum((u8 *)tbl, len)) {
+ fprintf(stderr, "Wrong checksum for FADT!\n");
+ }
+ if (x.header.length >= 148 && x.Xdsdt) {
+ addr = (unsigned long)x.Xdsdt;
+ if (connect) {
+ x.Xdsdt = lseek(fd, 0, SEEK_CUR);
+ }
+ } else if (x.header.length >= 44 && x.dsdt) {
+ addr = (unsigned long)x.dsdt;
+ if (connect) {
+ x.dsdt = lseek(fd, 0, SEEK_CUR);
+ }
+ } else {
+ fprintf(stderr, "No DSDT in FADT!\n");
+ goto no_dsdt;
+ }
+ tbl = acpi_map_table(addr, DSDT_SIG);
+ if (!tbl) goto no_dsdt;
+ if (checksum((u8 *)tbl, tbl->length))
+ fprintf(stderr, "Wrong checksum for DSDT!\n");
+ write_table(fd, tbl, addr);
+ acpi_unmap_table(tbl);
+no_dsdt:
+ if (x.header.length >= 140 && x.xfirmware_ctrl) {
+ addr = (unsigned long)x.xfirmware_ctrl;
+ if (connect) {
+ x.xfirmware_ctrl = lseek(fd, 0, SEEK_CUR);
+ }
+ } else if (x.header.length >= 40 && x.firmware_ctrl) {
+ addr = (unsigned long)x.firmware_ctrl;
+ if (connect) {
+ x.firmware_ctrl = lseek(fd, 0, SEEK_CUR);
+ }
+ } else {
+ fprintf(stderr, "No FACS in FADT!\n");
+ goto no_facs;
+ }
+ tbl = acpi_map_table(addr, FACS_SIG);
+ if (!tbl) goto no_facs;
+ /* do not checksum FACS */
+ write_table(fd, tbl, addr);
+ acpi_unmap_table(tbl);
+no_facs:
+ write_table(fd, (struct acpi_table_header *)&x, xaddr);
+}
+
+static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp)
+{
+ struct acpi_table_header *sdt, *tbl = 0;
+ int xsdt = 1, i, num;
+ char *offset;
+ unsigned long addr;
+ if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
+ tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT");
+ }
+ if (!tbl && rsdp->rsdt_physical_address) {
+ xsdt = 0;
+ tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT");
+ }
+ if (!tbl) return 0;
+ sdt = malloc(tbl->length);
+ memcpy(sdt, tbl, tbl->length);
+ acpi_unmap_table(tbl);
+ if (checksum((u8 *)sdt, sdt->length))
+ fprintf(stderr, "Wrong checksum for %s!\n", (xsdt)?"XSDT":"RSDT");
+ num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32));
+ offset = (char *)sdt + sizeof(struct acpi_table_header);
+ for (i = 0; i < num; ++i, offset += ((xsdt) ? sizeof(u64) : sizeof(u32))) {
+ addr = (xsdt) ? (unsigned long)(*(u64 *)offset):
+ (unsigned long)(*(u32 *)offset);
+ if (!addr) continue;
+ tbl = acpi_map_table(addr, 0);
+ if (!tbl) continue;
+ if (!memcmp(tbl->signature, FADT_SIG, 4)) {
+ acpi_dump_FADT(fd, tbl, addr);
+ } else {
+ if (checksum((u8 *)tbl, tbl->length))
+ fprintf(stderr, "Wrong checksum for generic table!\n");
+ write_table(fd, tbl, addr);
+ }
+ acpi_unmap_table(tbl);
+ if (connect) {
+ if (xsdt)
+ (*(u64*)offset) = lseek(fd, 0, SEEK_CUR);
+ else
+ (*(u32*)offset) = lseek(fd, 0, SEEK_CUR);
+ }
+ }
+ if (xsdt) {
+ addr = (unsigned long)rsdp->xsdt_physical_address;
+ if (connect) {
+ rsdp->xsdt_physical_address = lseek(fd, 0, SEEK_CUR);
+ }
+ } else {
+ addr = (unsigned long)rsdp->rsdt_physical_address;
+ if (connect) {
+ rsdp->rsdt_physical_address = lseek(fd, 0, SEEK_CUR);
+ }
+ }
+ write_table(fd, sdt, addr);
+ free (sdt);
+ return 1;
+}
+
+#define DYNAMIC_SSDT "/sys/firmware/acpi/tables/dynamic"
+
+static void acpi_dump_dynamic_SSDT(int fd)
+{
+ struct stat file_stat;
+ char filename[256], *ptr;
+ DIR *tabledir;
+ struct dirent *entry;
+ FILE *fp;
+ int count, readcount, length;
+ struct acpi_table_header table_header, *ptable;
+
+ if (stat(DYNAMIC_SSDT, &file_stat) == -1) {
+ /* The directory doesn't exist */
+ return;
+ }
+ tabledir = opendir(DYNAMIC_SSDT);
+ if(!tabledir){
+ /*can't open the directory */
+ return;
+ }
+
+ while ((entry = readdir(tabledir)) != 0){
+ /* skip the file of . /.. */
+ if (entry->d_name[0] == '.')
+ continue;
+
+ sprintf(filename, "%s/%s", DYNAMIC_SSDT, entry->d_name);
+ fp = fopen(filename, "r");
+ if (fp == NULL) {
+ fprintf(stderr, "Can't open the file of %s\n",
+ filename);
+ continue;
+ }
+ /* Read the Table header to parse the table length */
+ count = fread(&table_header, 1, sizeof(struct acpi_table_header), fp);
+ if (count < sizeof(table_header)) {
+ /* the length is lessn than ACPI table header. skip it */
+ fclose(fp);
+ continue;
+ }
+ length = table_header.length;
+ ptr = malloc(table_header.length);
+ fseek(fp, 0, SEEK_SET);
+ readcount = 0;
+ while(!feof(fp) && readcount < length) {
+ count = fread(ptr + readcount, 1, 256, fp);
+ readcount += count;
+ }
+ fclose(fp);
+ ptable = (struct acpi_table_header *) ptr;
+ if (checksum((u8 *) ptable, ptable->length))
+ fprintf(stderr, "Wrong checksum "
+ "for dynamic SSDT table!\n");
+ write_table(fd, ptable, 0);
+ free(ptr);
+ }
+ closedir(tabledir);
+ return;
+}
+
+static void usage(const char *progname)
+{
+ puts("Usage:");
+ printf("%s [--addr 0x1234][--table DSDT][--output filename]"
+ "[--binary][--length 0x456][--help]\n", progname);
+ puts("\t--addr 0x1234 or -a 0x1234 -- look for tables at this physical address");
+ puts("\t--table DSDT or -t DSDT -- only dump table with DSDT signature");
+ puts("\t--output filename or -o filename -- redirect output from stdin to filename");
+ puts("\t--binary or -b -- dump data in binary form rather than in hex-dump format");
+ puts("\t--length 0x456 or -l 0x456 -- works only with --addr, dump physical memory"
+ "\n\t\tregion without trying to understand it's contents");
+ puts("\t--skip 2 or -s 2 -- skip 2 tables of the given name and output only 3rd one");
+ puts("\t--help or -h -- this help message");
+ exit(0);
+}
+
+static struct option long_options[] = {
+ {"addr", 1, 0, 0},
+ {"table", 1, 0, 0},
+ {"output", 1, 0, 0},
+ {"binary", 0, 0, 0},
+ {"length", 1, 0, 0},
+ {"skip", 1, 0, 0},
+ {"help", 0, 0, 0},
+ {0, 0, 0, 0}
+};
+int main(int argc, char **argv)
+{
+ int option_index, c, fd;
+ u8 *raw;
+ struct acpi_rsdp_descriptor rsdpx, *x = 0;
+ char *filename = 0;
+ char buff[80];
+ memset(select_sig, 0, 4);
+ print = 1;
+ connect = 0;
+ addr = length = 0;
+ skip = 0;
+ while (1) {
+ option_index = 0;
+ c = getopt_long(argc, argv, "a:t:o:bl:s:h",
+ long_options, &option_index);
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case 0:
+ switch (option_index) {
+ case 0:
+ addr = strtoul(optarg, (char **)NULL, 16);
+ break;
+ case 1:
+ memcpy(select_sig, optarg, 4);
+ break;
+ case 2:
+ filename = optarg;
+ break;
+ case 3:
+ print = 0;
+ break;
+ case 4:
+ length = strtoul(optarg, (char **)NULL, 16);
+ break;
+ case 5:
+ skip = strtoul(optarg, (char **)NULL, 10);
+ break;
+ case 6:
+ usage(argv[0]);
+ exit(0);
+ }
+ break;
+ case 'a':
+ addr = strtoul(optarg, (char **)NULL, 16);
+ break;
+ case 't':
+ memcpy(select_sig, optarg, 4);
+ break;
+ case 'o':
+ filename = optarg;
+ break;
+ case 'b':
+ print = 0;
+ break;
+ case 'l':
+ length = strtoul(optarg, (char **)NULL, 16);
+ break;
+ case 's':
+ skip = strtoul(optarg, (char **)NULL, 10);
+ break;
+ case 'h':
+ usage(argv[0]);
+ exit(0);
+ default:
+ printf("Unknown option!\n");
+ usage(argv[0]);
+ exit(0);
+ }
+ }
+
+ fd = STDOUT_FILENO;
+ if (filename) {
+ fd = creat(filename, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
+ if (fd < 0)
+ return fd;
+ }
+
+ if (!select_sig[0] && !print) {
+ connect = 1;
+ }
+
+ psz = sysconf(_SC_PAGESIZE);
+ if (length && addr) {
+ /* We know length and address, it means we just want a memory dump */
+ if (!(raw = acpi_map_memory(addr, length)))
+ goto not_found;
+ write(fd, raw, length);
+ acpi_unmap_memory(raw, length);
+ close(fd);
+ return 0;
+ }
+
+ length = sizeof(struct acpi_rsdp_descriptor);
+ if (!addr) {
+ addr = read_efi_systab();
+ if (!addr) {
+ addr = ACPI_HI_RSDP_WINDOW_BASE;
+ length = ACPI_HI_RSDP_WINDOW_SIZE;
+ }
+ }
+
+ if (!(raw = acpi_map_memory(addr, length)) ||
+ !(x = acpi_scan_for_rsdp(raw, length)))
+ goto not_found;
+
+ /* Find RSDP and print all found tables */
+ memcpy(&rsdpx, x, sizeof(struct acpi_rsdp_descriptor));
+ acpi_unmap_memory(raw, length);
+ if (connect) {
+ lseek(fd, sizeof(struct acpi_rsdp_descriptor), SEEK_SET);
+ }
+ if (!acpi_dump_SDT(fd, &rsdpx))
+ goto not_found;
+ if (connect) {
+ lseek(fd, 0, SEEK_SET);
+ write(fd, x, (rsdpx.revision < 2) ?
+ ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
+ } else if (!select_sig[0] || !memcmp("RSD PTR ", select_sig, 4)) {
+ addr += (long)x - (long)raw;
+ length = snprintf(buff, 80, "RSD PTR @ %p\n", (void *)addr);
+ write(fd, buff, length);
+ acpi_show_data(fd, (u8 *) & rsdpx, (rsdpx.revision < 2) ?
+ ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
+ buff[0] = '\n';
+ write(fd, buff, 1);
+ }
+ acpi_dump_dynamic_SSDT(fd);
+ close(fd);
+ return 0;
+not_found:
+ close(fd);
+ fprintf(stderr, "ACPI tables were not found. If you know location "
+ "of RSD PTR table (from dmesg, etc), "
+ "supply it with either --addr or -a option\n");
+ return 1;
+}
projects / deliverable / linux.git / commitdiff
