FreeBSD-5.3/usr.sbin/acpi/acpidb/acpidb.c
/*-
* Copyright (c) 2000-2002 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*
* $FreeBSD: src/usr.sbin/acpi/acpidb/acpidb.c,v 1.1 2003/08/07 16:51:50 njl Exp $
*/
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <acpi.h>
#include <acnamesp.h>
#include <acdebug.h>
/*
* Dummy DSDT Table Header
*/
ACPI_TABLE_HEADER dummy_dsdt_table = {
"DSDT", 123, 1, 123, "OEMID", "OEMTBLID", 1, "CRID", 1
};
/*
* Region space I/O routines on virtual machine
*/
int aml_debug_prompt = 1;
struct ACPIRegionContent {
TAILQ_ENTRY(ACPIRegionContent) links;
int regtype;
ACPI_PHYSICAL_ADDRESS addr;
UINT8 value;
};
TAILQ_HEAD(ACPIRegionContentList, ACPIRegionContent);
struct ACPIRegionContentList RegionContentList;
static int aml_simulation_initialized = 0;
static void aml_simulation_init(void);
static int aml_simulate_regcontent_add(int regtype,
ACPI_PHYSICAL_ADDRESS addr,
UINT8 value);
static int aml_simulate_regcontent_read(int regtype,
ACPI_PHYSICAL_ADDRESS addr,
UINT8 *valuep);
static int aml_simulate_regcontent_write(int regtype,
ACPI_PHYSICAL_ADDRESS addr,
UINT8 *valuep);
static ACPI_INTEGER aml_simulate_prompt(char *msg, ACPI_INTEGER def_val);
static void aml_simulation_regload(const char *dumpfile);
static void aml_simulation_regdump(const char *dumpfile);
static void
aml_simulation_init(void)
{
aml_simulation_initialized = 1;
TAILQ_INIT(&RegionContentList);
aml_simulation_regload("region.ini");
}
static int
aml_simulate_regcontent_add(int regtype, ACPI_PHYSICAL_ADDRESS addr, UINT8 value)
{
struct ACPIRegionContent *rc;
rc = malloc(sizeof(struct ACPIRegionContent));
if (rc == NULL) {
return (-1); /* malloc fail */
}
rc->regtype = regtype;
rc->addr = addr;
rc->value = value;
TAILQ_INSERT_TAIL(&RegionContentList, rc, links);
return (0);
}
static int
aml_simulate_regcontent_read(int regtype, ACPI_PHYSICAL_ADDRESS addr, UINT8 *valuep)
{
struct ACPIRegionContent *rc;
if (!aml_simulation_initialized) {
aml_simulation_init();
}
TAILQ_FOREACH(rc, &RegionContentList, links) {
if (rc->regtype == regtype && rc->addr == addr) {
*valuep = rc->value;
return (1); /* found */
}
}
*valuep = 0;
return (aml_simulate_regcontent_add(regtype, addr, *valuep));
}
static int
aml_simulate_regcontent_write(int regtype, ACPI_PHYSICAL_ADDRESS addr, UINT8 *valuep)
{
struct ACPIRegionContent *rc;
if (!aml_simulation_initialized) {
aml_simulation_init();
}
TAILQ_FOREACH(rc, &RegionContentList, links) {
if (rc->regtype == regtype && rc->addr == addr) {
rc->value = *valuep;
return (1); /* exists */
}
}
return (aml_simulate_regcontent_add(regtype, addr, *valuep));
}
static ACPI_INTEGER
aml_simulate_prompt(char *msg, ACPI_INTEGER def_val)
{
char buf[16], *ep;
ACPI_INTEGER val;
val = def_val;
printf("DEBUG");
if (msg != NULL) {
printf("%s", msg);
}
printf("(default: 0x%x ", val);
printf(" / %u) >>", val);
fflush(stdout);
bzero(buf, sizeof buf);
while (1) {
if (read(0, buf, sizeof buf) == 0) {
continue;
}
if (buf[0] == '\n') {
break; /* use default value */
}
if (buf[0] == '0' && buf[1] == 'x') {
val = strtoq(buf, &ep, 16);
} else {
val = strtoq(buf, &ep, 10);
}
break;
}
return (val);
}
static void
aml_simulation_regload(const char *dumpfile)
{
char buf[256], *np, *ep;
struct ACPIRegionContent rc;
FILE *fp;
if (!aml_simulation_initialized) {
return;
}
if ((fp = fopen(dumpfile, "r")) == NULL) {
return;
}
while (fgets(buf, sizeof buf, fp) != NULL) {
np = buf;
/* reading region type */
rc.regtype = strtoq(np, &ep, 10);
if (np == ep) {
continue;
}
np = ep;
/* reading address */
rc.addr = strtoq(np, &ep, 16);
if (np == ep) {
continue;
}
np = ep;
/* reading value */
rc.value = strtoq(np, &ep, 16);
if (np == ep) {
continue;
}
aml_simulate_regcontent_write(rc.regtype, rc.addr, &rc.value);
}
fclose(fp);
}
static void
aml_simulation_regdump(const char *dumpfile)
{
struct ACPIRegionContent *rc;
FILE *fp;
if (!aml_simulation_initialized) {
return;
}
if ((fp = fopen(dumpfile, "w")) == NULL) {
warn("%s", dumpfile);
return;
}
while (!TAILQ_EMPTY(&RegionContentList)) {
rc = TAILQ_FIRST(&RegionContentList);
fprintf(fp, "%d 0x%x 0x%x\n",
rc->regtype, rc->addr, rc->value);
TAILQ_REMOVE(&RegionContentList, rc, links);
free(rc);
}
fclose(fp);
TAILQ_INIT(&RegionContentList);
}
/*
* Space handlers on virtual machine
*/
static ACPI_STATUS
aml_vm_space_handler(
UINT32 SpaceID,
UINT32 Function,
ACPI_PHYSICAL_ADDRESS Address,
UINT32 BitWidth,
ACPI_INTEGER *Value,
int Prompt)
{
int state;
UINT8 val;
ACPI_INTEGER value, i;
char msg[256];
static char *space_names[] = {
"SYSTEM_MEMORY", "SYSTEM_IO", "PCI_CONFIG",
"EC", "SMBUS", "CMOS", "PCI_BAR_TARGET"};
switch (Function) {
case ACPI_READ:
value = 0;
for (i = 0; (i * 8) < BitWidth; i++) {
state = aml_simulate_regcontent_read(SpaceID,
Address + i, &val);
if (state == -1) {
return (AE_NO_MEMORY);
}
value |= val << (i * 8);
}
*Value = value;
if (Prompt) {
sprintf(msg, "[read (%s, %2d, 0x%x)]",
space_names[SpaceID], BitWidth, Address);
*Value = aml_simulate_prompt(msg, value);
if (*Value != value) {
return(aml_vm_space_handler(SpaceID,
ACPI_WRITE,
Address, BitWidth, Value, 0));
}
}
break;
case ACPI_WRITE:
value = *Value;
if (Prompt) {
sprintf(msg, "[write(%s, %2d, 0x%x)]",
space_names[SpaceID], BitWidth, Address);
value = aml_simulate_prompt(msg, *Value);
}
*Value = value;
for (i = 0; (i * 8) < BitWidth; i++) {
val = value & 0xff;
state = aml_simulate_regcontent_write(SpaceID,
Address + i, &val);
if (state == -1) {
return (AE_NO_MEMORY);
}
value = value >> 8;
}
}
return (AE_OK);
}
#define DECLARE_VM_SPACE_HANDLER(name, id); \
static ACPI_STATUS \
aml_vm_space_handler_##name ( \
UINT32 Function, \
ACPI_PHYSICAL_ADDRESS Address, \
UINT32 BitWidth, \
ACPI_INTEGER *Value, \
void *HandlerContext, \
void *RegionContext) \
{ \
return (aml_vm_space_handler(id, Function, Address, \
BitWidth, Value, aml_debug_prompt)); \
}
DECLARE_VM_SPACE_HANDLER(system_memory, ACPI_ADR_SPACE_SYSTEM_MEMORY);
DECLARE_VM_SPACE_HANDLER(system_io, ACPI_ADR_SPACE_SYSTEM_IO);
DECLARE_VM_SPACE_HANDLER(pci_config, ACPI_ADR_SPACE_PCI_CONFIG);
DECLARE_VM_SPACE_HANDLER(ec, ACPI_ADR_SPACE_EC);
DECLARE_VM_SPACE_HANDLER(smbus, ACPI_ADR_SPACE_SMBUS);
DECLARE_VM_SPACE_HANDLER(cmos, ACPI_ADR_SPACE_CMOS);
DECLARE_VM_SPACE_HANDLER(pci_bar_target,ACPI_ADR_SPACE_PCI_BAR_TARGET);
/*
* Load DSDT data file and invoke debugger
*/
static UINT32 DummyGlobalLock;
static int
load_dsdt(const char *dsdtfile)
{
char filetmp[PATH_MAX];
u_int8_t *code, *amlptr;
struct stat sb;
int fd, fd2;
int error;
ACPI_TABLE_HEADER *tableptr;
fd = open(dsdtfile, O_RDONLY, 0);
if (fd == -1) {
perror("open");
return (-1);
}
if (fstat(fd, &sb) == -1) {
perror("fstat");
return (-1);
}
code = mmap(NULL, (size_t)sb.st_size, PROT_READ, MAP_PRIVATE, fd, (off_t)0);
if (code == NULL) {
perror("mmap");
return (-1);
}
if ((error = AcpiInitializeSubsystem()) != AE_OK) {
return (-1);
}
/*
* make sure DSDT data contains table header or not.
*/
if (strncmp((char *)code, "DSDT", 4) == 0) {
strncpy(filetmp, dsdtfile, sizeof(filetmp));
} else {
mode_t mode = (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
dummy_dsdt_table.Length = sizeof(ACPI_TABLE_HEADER) + sb.st_size;
snprintf(filetmp, sizeof(filetmp), "%s.tmp", dsdtfile);
fd2 = open(filetmp, O_WRONLY | O_CREAT | O_TRUNC, mode);
if (fd2 == -1) {
perror("open");
return (-1);
}
write(fd2, &dummy_dsdt_table, sizeof(ACPI_TABLE_HEADER));
write(fd2, code, sb.st_size);
close(fd2);
}
/*
* Install the virtual machine version of address space handlers.
*/
if ((error = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_SYSTEM_MEMORY,
aml_vm_space_handler_system_memory,
NULL, NULL)) != AE_OK) {
fprintf(stderr, "could not initialise SystemMemory handler: %d\n", error);
return (-1);
}
if ((error = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_SYSTEM_IO,
aml_vm_space_handler_system_io,
NULL, NULL)) != AE_OK) {
fprintf(stderr, "could not initialise SystemIO handler: %d\n", error);
return (-1);
}
if ((error = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_PCI_CONFIG,
aml_vm_space_handler_pci_config,
NULL, NULL)) != AE_OK) {
fprintf(stderr, "could not initialise PciConfig handler: %d\n", error);
return (-1);
}
if ((error = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_EC,
aml_vm_space_handler_ec,
NULL, NULL)) != AE_OK) {
fprintf(stderr, "could not initialise EC handler: %d\n", error);
return (-1);
}
if ((error = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_SMBUS,
aml_vm_space_handler_smbus,
NULL, NULL)) != AE_OK) {
fprintf(stderr, "could not initialise SMBUS handler: %d\n", error);
return (-1);
}
if ((error = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_CMOS,
aml_vm_space_handler_cmos,
NULL, NULL)) != AE_OK) {
fprintf(stderr, "could not initialise CMOS handler: %d\n", error);
return (-1);
}
if ((error = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_PCI_BAR_TARGET,
aml_vm_space_handler_pci_bar_target,
NULL, NULL)) != AE_OK) {
fprintf(stderr, "could not initialise PCI BAR TARGET handler: %d\n", error);
return (-1);
}
AcpiGbl_FACS = malloc(sizeof (ACPI_COMMON_FACS));
if (AcpiGbl_FACS == NULL) {
fprintf(stderr, "could not allocate memory for FACS\n");
return (-1);
}
DummyGlobalLock = 0;
AcpiGbl_CommonFACS.GlobalLock = &DummyGlobalLock;
AcpiGbl_GlobalLockPresent = TRUE;
AcpiDbGetTableFromFile(filetmp, NULL);
AcpiUtSetIntegerWidth (AcpiGbl_DSDT->Revision);
AcpiDbInitialize();
AcpiGbl_DebuggerConfiguration = 0;
AcpiDbUserCommands(':', NULL);
if (strcmp(dsdtfile, filetmp) != 0) {
unlink(filetmp);
}
return (0);
}
static void
usage(const char *progname)
{
printf("usage: %s dsdt_file\n", progname);
exit(1);
}
int
main(int argc, char *argv[])
{
char *progname;
progname = argv[0];
if (argc == 1) {
usage(progname);
}
AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
aml_simulation_regload("region.ini");
if (load_dsdt(argv[1]) == 0) {
aml_simulation_regdump("region.dmp");
}
return (0);
}