blob: ae25c0c0f6be08a2b6f02624e406fb3bd55835d6 [file] [log] [blame]
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* Copyright 2016 Tooams Soome <>
#include <sys/cdefs.h>
#include <stand.h>
#include <machine/stdarg.h>
#include <bootstrap.h>
#include <efi.h>
#include <efilib.h>
#include "platform/acfreebsd.h"
#include "acconfig.h"
#include "actypes.h"
#include "actbl.h"
static EFI_GUID acpi_guid = ACPI_TABLE_GUID;
static EFI_GUID acpi20_guid = ACPI_20_TABLE_GUID;
char buf[24];
int revision;
if ((rsdp = efi_get_table(&acpi20_guid)) == NULL)
rsdp = efi_get_table(&acpi_guid);
if (rsdp == NULL)
/* export values from the RSDP */
#ifdef _LP64
snprintf(buf, sizeof (buf), "0x%016llx", (unsigned long long)rsdp);
snprintf(buf, sizeof (buf), "0x%08x", (unsigned int)rsdp);
setenv("acpi.rsdp", buf, 1);
revision = rsdp->Revision;
if (revision == 0)
revision = 1;
snprintf(buf, sizeof (buf), "%d", revision);
setenv("acpi.revision", buf, 1);
strncpy(buf, rsdp->OemId, sizeof(rsdp->OemId));
buf[sizeof(rsdp->OemId)] = '\0';
setenv("acpi.oem", buf, 1);
#ifdef _LP64
snprintf(buf, sizeof (buf), "0x%016llx",
(unsigned long long)rsdp->RsdtPhysicalAddress);
snprintf(buf, sizeof (buf), "0x%08x", rsdp->RsdtPhysicalAddress);
setenv("acpi.rsdt", buf, 1);
if (revision >= 2) {
snprintf(buf, sizeof (buf), "0x%016llx",
(unsigned long long)rsdp->XsdtPhysicalAddress);
setenv("acpi.xsdt", buf, 1);
snprintf(buf, sizeof (buf), "%d", rsdp->Length);
setenv("acpi.xsdt_length", buf, 1);