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/*-
* Copyright (c) 2002 Mitsaru Iwasaki
* 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.
*/
/*
* ACPI Table interfaces
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/endian.h>
#include <sys/kernel.h>
#include <sys/linker.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/actables.h>
#undef _COMPONENT
#define _COMPONENT ACPI_TABLES
static char acpi_osname[128];
TUNABLE_STR("hw.acpi.osname", acpi_osname, sizeof(acpi_osname));
ACPI_STATUS
AcpiOsPredefinedOverride(const ACPI_PREDEFINED_NAMES *InitVal,
ACPI_STRING *NewVal)
{
if (InitVal == NULL || NewVal == NULL)
return (AE_BAD_PARAMETER);
*NewVal = NULL;
if (ACPI_COMPARE_NAME(InitVal->Name, "_OS_") &&
InitVal->Type == ACPI_TYPE_STRING && strlen(acpi_osname) > 0) {
printf("ACPI: Overriding _OS definition with \"%s\"\n",
acpi_osname);
*NewVal = acpi_osname;
}
return (AE_OK);
}
ACPI_STATUS
AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable)
{
char modname[] = "acpi_dsdt";
caddr_t acpi_table;
ACPI_TABLE_HEADER *hdr;
size_t sz;
if (ExistingTable == NULL || NewTable == NULL)
return (AE_BAD_PARAMETER);
*NewTable = NULL;
#ifdef notyet
for (int i = 0; i < ACPI_NAME_SIZE; i++)
modname[i + 5] = tolower(ExistingTable->Signature[i]);
#else
if (!ACPI_COMPARE_NAME(ExistingTable->Signature, ACPI_SIG_DSDT))
return (AE_SUPPORT);
#endif
acpi_table = preload_search_by_type(modname);
if (acpi_table == NULL)
return (AE_NOT_FOUND);
hdr = preload_fetch_addr(acpi_table);
sz = preload_fetch_size(acpi_table);
if (hdr == NULL || sz == 0)
return (AE_ERROR);
*NewTable = hdr;
return (AE_OK);
}
ACPI_STATUS
AcpiOsPhysicalTableOverride(ACPI_TABLE_HEADER *ExistingTable,
ACPI_PHYSICAL_ADDRESS *NewAddress, UINT32 *NewTableLength)
{
return (AE_SUPPORT);
}
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