109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
/*-
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* Copyright (c) 2002 Mitsaru Iwasaki
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* ACPI Table interfaces
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/endian.h>
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#include <sys/kernel.h>
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#include <sys/linker.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/aclocal.h>
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#include <contrib/dev/acpica/include/actables.h>
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#undef _COMPONENT
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#define _COMPONENT ACPI_TABLES
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static char acpi_osname[128];
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TUNABLE_STR("hw.acpi.osname", acpi_osname, sizeof(acpi_osname));
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ACPI_STATUS
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AcpiOsPredefinedOverride(const ACPI_PREDEFINED_NAMES *InitVal,
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ACPI_STRING *NewVal)
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{
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if (InitVal == NULL || NewVal == NULL)
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return (AE_BAD_PARAMETER);
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*NewVal = NULL;
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if (ACPI_COMPARE_NAMESEG(InitVal->Name, "_OS_") &&
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InitVal->Type == ACPI_TYPE_STRING && strlen(acpi_osname) > 0) {
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printf("ACPI: Overriding _OS definition with \"%s\"\n",
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acpi_osname);
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*NewVal = acpi_osname;
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}
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return (AE_OK);
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}
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ACPI_STATUS
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AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable,
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ACPI_TABLE_HEADER **NewTable)
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{
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char modname[] = "acpi_dsdt";
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caddr_t acpi_table;
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ACPI_TABLE_HEADER *hdr;
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size_t sz;
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if (ExistingTable == NULL || NewTable == NULL)
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return (AE_BAD_PARAMETER);
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*NewTable = NULL;
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if (!ACPI_COMPARE_NAMESEG(ExistingTable->Signature, ACPI_SIG_DSDT))
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#ifdef notyet
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for (int i = 0; i < ACPI_NAMESEG_SIZE; i++)
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modname[i + 5] = tolower(ExistingTable->Signature[i]);
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#else
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return (AE_SUPPORT);
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#endif
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acpi_table = preload_search_by_type(modname);
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if (acpi_table == NULL)
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return (AE_NOT_FOUND);
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hdr = preload_fetch_addr(acpi_table);
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sz = preload_fetch_size(acpi_table);
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if (hdr == NULL || sz == 0)
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return (AE_ERROR);
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#ifndef notyet
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/* Assume SSDT is installed with DSDT. */
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AcpiGbl_DisableSsdtTableInstall = TRUE;
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#endif
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*NewTable = hdr;
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return (AE_OK);
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}
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ACPI_STATUS
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AcpiOsPhysicalTableOverride(ACPI_TABLE_HEADER *ExistingTable,
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ACPI_PHYSICAL_ADDRESS *NewAddress, UINT32 *NewTableLength)
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{
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return (AE_SUPPORT);
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}
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