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/*
* 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
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2016 Tooams Soome <tsoome@me.com>
*/
#include <sys/cdefs.h>
#include <stand.h>
#include <machine/stdarg.h>
#include <bootstrap.h>
#include <efi.h>
#include <efilib.h>
#include <Guid/Acpi.h>
#include "platform/acfreebsd.h"
#include "acconfig.h"
#define ACPI_SYSTEM_XFACE
#include "actypes.h"
#include "actbl.h"
ACPI_TABLE_RSDP *rsdp;
EFI_GUID gEfiAcpiTableGuid = ACPI_TABLE_GUID;
EFI_GUID gEfiAcpi20TableGuid = EFI_ACPI_TABLE_GUID;
void
acpi_detect(void)
{
char buf[24];
int revision;
if ((rsdp = efi_get_table(&gEfiAcpi20TableGuid)) == NULL)
rsdp = efi_get_table(&gEfiAcpiTableGuid);
if (rsdp == NULL)
return;
/* export values from the RSDP */
#ifdef _LP64
snprintf(buf, sizeof (buf), "0x%016llx", (unsigned long long)rsdp);
#else
snprintf(buf, sizeof (buf), "0x%08x", (unsigned int)rsdp);
#endif
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);
#else
snprintf(buf, sizeof (buf), "0x%08x", rsdp->RsdtPhysicalAddress);
#endif
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);
}
}
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