mirror of
https://github.com/reactos/reactos.git
synced 2025-01-01 03:54:02 +00:00
639 lines
18 KiB
C
639 lines
18 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: tbxface - ACPI table-oriented external interfaces
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2022, Intel Corp.
|
|
* 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,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* substantially similar to the "NO WARRANTY" disclaimer below
|
|
* ("Disclaimer") and any redistribution must be conditioned upon
|
|
* including a substantially similar Disclaimer requirement for further
|
|
* binary redistribution.
|
|
* 3. Neither the names of the above-listed copyright holders nor the names
|
|
* of any contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* NO WARRANTY
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
|
|
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
|
|
*/
|
|
|
|
#define EXPORT_ACPI_INTERFACES
|
|
|
|
#include "acpi.h"
|
|
#include "accommon.h"
|
|
#include "actables.h"
|
|
|
|
#define _COMPONENT ACPI_TABLES
|
|
ACPI_MODULE_NAME ("tbxface")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiAllocateRootTable
|
|
*
|
|
* PARAMETERS: InitialTableCount - Size of InitialTableArray, in number of
|
|
* ACPI_TABLE_DESC structures
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Allocate a root table array. Used by iASL compiler and
|
|
* AcpiInitializeTables.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiAllocateRootTable (
|
|
UINT32 InitialTableCount)
|
|
{
|
|
|
|
AcpiGbl_RootTableList.MaxTableCount = InitialTableCount;
|
|
AcpiGbl_RootTableList.Flags = ACPI_ROOT_ALLOW_RESIZE;
|
|
|
|
return (AcpiTbResizeRootTableList ());
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiInitializeTables
|
|
*
|
|
* PARAMETERS: InitialTableArray - Pointer to an array of pre-allocated
|
|
* ACPI_TABLE_DESC structures. If NULL, the
|
|
* array is dynamically allocated.
|
|
* InitialTableCount - Size of InitialTableArray, in number of
|
|
* ACPI_TABLE_DESC structures
|
|
* AllowResize - Flag to tell Table Manager if resize of
|
|
* pre-allocated array is allowed. Ignored
|
|
* if InitialTableArray is NULL.
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT.
|
|
*
|
|
* NOTE: Allows static allocation of the initial table array in order
|
|
* to avoid the use of dynamic memory in confined environments
|
|
* such as the kernel boot sequence where it may not be available.
|
|
*
|
|
* If the host OS memory managers are initialized, use NULL for
|
|
* InitialTableArray, and the table will be dynamically allocated.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS ACPI_INIT_FUNCTION
|
|
AcpiInitializeTables (
|
|
ACPI_TABLE_DESC *InitialTableArray,
|
|
UINT32 InitialTableCount,
|
|
BOOLEAN AllowResize)
|
|
{
|
|
ACPI_PHYSICAL_ADDRESS RsdpAddress;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiInitializeTables);
|
|
|
|
|
|
/*
|
|
* Setup the Root Table Array and allocate the table array
|
|
* if requested
|
|
*/
|
|
if (!InitialTableArray)
|
|
{
|
|
Status = AcpiAllocateRootTable (InitialTableCount);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Root Table Array has been statically allocated by the host */
|
|
|
|
memset (InitialTableArray, 0,
|
|
(ACPI_SIZE) InitialTableCount * sizeof (ACPI_TABLE_DESC));
|
|
|
|
AcpiGbl_RootTableList.Tables = InitialTableArray;
|
|
AcpiGbl_RootTableList.MaxTableCount = InitialTableCount;
|
|
AcpiGbl_RootTableList.Flags = ACPI_ROOT_ORIGIN_UNKNOWN;
|
|
if (AllowResize)
|
|
{
|
|
AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ALLOW_RESIZE;
|
|
}
|
|
}
|
|
|
|
/* Get the address of the RSDP */
|
|
|
|
RsdpAddress = AcpiOsGetRootPointer ();
|
|
if (!RsdpAddress)
|
|
{
|
|
return_ACPI_STATUS (AE_NOT_FOUND);
|
|
}
|
|
|
|
/*
|
|
* Get the root table (RSDT or XSDT) and extract all entries to the local
|
|
* Root Table Array. This array contains the information of the RSDT/XSDT
|
|
* in a common, more usable format.
|
|
*/
|
|
Status = AcpiTbParseRootTable (RsdpAddress);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeTables)
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiReallocateRootTable
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the
|
|
* root list from the previously provided scratch area. Should
|
|
* be called once dynamic memory allocation is available in the
|
|
* kernel.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS ACPI_INIT_FUNCTION
|
|
AcpiReallocateRootTable (
|
|
void)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_TABLE_DESC *TableDesc;
|
|
UINT32 i, j;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiReallocateRootTable);
|
|
|
|
|
|
/*
|
|
* If there are tables unverified, it is required to reallocate the
|
|
* root table list to clean up invalid table entries. Otherwise only
|
|
* reallocate the root table list if the host provided a static buffer
|
|
* for the table array in the call to AcpiInitializeTables().
|
|
*/
|
|
if ((AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) &&
|
|
AcpiGbl_EnableTableValidation)
|
|
{
|
|
return_ACPI_STATUS (AE_SUPPORT);
|
|
}
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
|
|
/*
|
|
* Ensure OS early boot logic, which is required by some hosts. If the
|
|
* table state is reported to be wrong, developers should fix the
|
|
* issue by invoking AcpiPutTable() for the reported table during the
|
|
* early stage.
|
|
*/
|
|
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
|
|
{
|
|
TableDesc = &AcpiGbl_RootTableList.Tables[i];
|
|
if (TableDesc->Pointer)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Table [%4.4s] is not invalidated during early boot stage",
|
|
TableDesc->Signature.Ascii));
|
|
}
|
|
}
|
|
|
|
if (!AcpiGbl_EnableTableValidation)
|
|
{
|
|
/*
|
|
* Now it's safe to do full table validation. We can do deferred
|
|
* table initialization here once the flag is set.
|
|
*/
|
|
AcpiGbl_EnableTableValidation = TRUE;
|
|
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
|
|
{
|
|
TableDesc = &AcpiGbl_RootTableList.Tables[i];
|
|
if (!(TableDesc->Flags & ACPI_TABLE_IS_VERIFIED))
|
|
{
|
|
Status = AcpiTbVerifyTempTable (TableDesc, NULL, &j);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiTbUninstallTable (TableDesc);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ALLOW_RESIZE;
|
|
Status = AcpiTbResizeRootTableList ();
|
|
AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL_INIT (AcpiReallocateRootTable)
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiGetTableHeader
|
|
*
|
|
* PARAMETERS: Signature - ACPI signature of needed table
|
|
* Instance - Which instance (for SSDTs)
|
|
* OutTableHeader - The pointer to the where the table header
|
|
* is returned
|
|
*
|
|
* RETURN: Status and a copy of the table header
|
|
*
|
|
* DESCRIPTION: Finds and returns an ACPI table header. Caller provides the
|
|
* memory where a copy of the header is to be returned
|
|
* (fixed length).
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiGetTableHeader (
|
|
char *Signature,
|
|
UINT32 Instance,
|
|
ACPI_TABLE_HEADER *OutTableHeader)
|
|
{
|
|
UINT32 i;
|
|
UINT32 j;
|
|
ACPI_TABLE_HEADER *Header;
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
if (!Signature || !OutTableHeader)
|
|
{
|
|
return (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Walk the root table list */
|
|
|
|
for (i = 0, j = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
|
|
{
|
|
if (!ACPI_COMPARE_NAMESEG (
|
|
&(AcpiGbl_RootTableList.Tables[i].Signature), Signature))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (++j < Instance)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (!AcpiGbl_RootTableList.Tables[i].Pointer)
|
|
{
|
|
if ((AcpiGbl_RootTableList.Tables[i].Flags &
|
|
ACPI_TABLE_ORIGIN_MASK) ==
|
|
ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL)
|
|
{
|
|
Header = AcpiOsMapMemory (
|
|
AcpiGbl_RootTableList.Tables[i].Address,
|
|
sizeof (ACPI_TABLE_HEADER));
|
|
if (!Header)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
memcpy (OutTableHeader, Header, sizeof (ACPI_TABLE_HEADER));
|
|
AcpiOsUnmapMemory (Header, sizeof (ACPI_TABLE_HEADER));
|
|
}
|
|
else
|
|
{
|
|
return (AE_NOT_FOUND);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
memcpy (OutTableHeader,
|
|
AcpiGbl_RootTableList.Tables[i].Pointer,
|
|
sizeof (ACPI_TABLE_HEADER));
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
return (AE_NOT_FOUND);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiGetTableHeader)
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiGetTable
|
|
*
|
|
* PARAMETERS: Signature - ACPI signature of needed table
|
|
* Instance - Which instance (for SSDTs)
|
|
* OutTable - Where the pointer to the table is returned
|
|
*
|
|
* RETURN: Status and pointer to the requested table
|
|
*
|
|
* DESCRIPTION: Finds and verifies an ACPI table. Table must be in the
|
|
* RSDT/XSDT.
|
|
* Note that an early stage AcpiGetTable() call must be paired
|
|
* with an early stage AcpiPutTable() call. otherwise the table
|
|
* pointer mapped by the early stage mapping implementation may be
|
|
* erroneously unmapped by the late stage unmapping implementation
|
|
* in an AcpiPutTable() invoked during the late stage.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiGetTable (
|
|
char *Signature,
|
|
UINT32 Instance,
|
|
ACPI_TABLE_HEADER **OutTable)
|
|
{
|
|
UINT32 i;
|
|
UINT32 j;
|
|
ACPI_STATUS Status = AE_NOT_FOUND;
|
|
ACPI_TABLE_DESC *TableDesc;
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
if (!Signature || !OutTable)
|
|
{
|
|
return (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/*
|
|
* Note that the following line is required by some OSPMs, they only
|
|
* check if the returned table is NULL instead of the returned status
|
|
* to determined if this function is succeeded.
|
|
*/
|
|
*OutTable = NULL;
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
|
|
/* Walk the root table list */
|
|
|
|
for (i = 0, j = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
|
|
{
|
|
TableDesc = &AcpiGbl_RootTableList.Tables[i];
|
|
|
|
if (!ACPI_COMPARE_NAMESEG (&TableDesc->Signature, Signature))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (++j < Instance)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
Status = AcpiTbGetTable (TableDesc, OutTable);
|
|
break;
|
|
}
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiGetTable)
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiPutTable
|
|
*
|
|
* PARAMETERS: Table - The pointer to the table
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Release a table returned by AcpiGetTable() and its clones.
|
|
* Note that it is not safe if this function was invoked after an
|
|
* uninstallation happened to the original table descriptor.
|
|
* Currently there is no OSPMs' requirement to handle such
|
|
* situations.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiPutTable (
|
|
ACPI_TABLE_HEADER *Table)
|
|
{
|
|
UINT32 i;
|
|
ACPI_TABLE_DESC *TableDesc;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiPutTable);
|
|
|
|
|
|
if (!Table)
|
|
{
|
|
return_VOID;
|
|
}
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
|
|
/* Walk the root table list */
|
|
|
|
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
|
|
{
|
|
TableDesc = &AcpiGbl_RootTableList.Tables[i];
|
|
|
|
if (TableDesc->Pointer != Table)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
AcpiTbPutTable (TableDesc);
|
|
break;
|
|
}
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return_VOID;
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiPutTable)
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiGetTableByIndex
|
|
*
|
|
* PARAMETERS: TableIndex - Table index
|
|
* OutTable - Where the pointer to the table is returned
|
|
*
|
|
* RETURN: Status and pointer to the requested table
|
|
*
|
|
* DESCRIPTION: Obtain a table by an index into the global table list. Used
|
|
* internally also.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiGetTableByIndex (
|
|
UINT32 TableIndex,
|
|
ACPI_TABLE_HEADER **OutTable)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiGetTableByIndex);
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
if (!OutTable)
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/*
|
|
* Note that the following line is required by some OSPMs, they only
|
|
* check if the returned table is NULL instead of the returned status
|
|
* to determined if this function is succeeded.
|
|
*/
|
|
*OutTable = NULL;
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
|
|
/* Validate index */
|
|
|
|
if (TableIndex >= AcpiGbl_RootTableList.CurrentTableCount)
|
|
{
|
|
Status = AE_BAD_PARAMETER;
|
|
goto UnlockAndExit;
|
|
}
|
|
|
|
Status = AcpiTbGetTable (
|
|
&AcpiGbl_RootTableList.Tables[TableIndex], OutTable);
|
|
|
|
UnlockAndExit:
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiGetTableByIndex)
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiInstallTableHandler
|
|
*
|
|
* PARAMETERS: Handler - Table event handler
|
|
* Context - Value passed to the handler on each event
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Install a global table event handler.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiInstallTableHandler (
|
|
ACPI_TABLE_HANDLER Handler,
|
|
void *Context)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiInstallTableHandler);
|
|
|
|
|
|
if (!Handler)
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Don't allow more than one handler */
|
|
|
|
if (AcpiGbl_TableHandler)
|
|
{
|
|
Status = AE_ALREADY_EXISTS;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Install the handler */
|
|
|
|
AcpiGbl_TableHandler = Handler;
|
|
AcpiGbl_TableHandlerContext = Context;
|
|
|
|
Cleanup:
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiInstallTableHandler)
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRemoveTableHandler
|
|
*
|
|
* PARAMETERS: Handler - Table event handler that was installed
|
|
* previously.
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Remove a table event handler
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRemoveTableHandler (
|
|
ACPI_TABLE_HANDLER Handler)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiRemoveTableHandler);
|
|
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Make sure that the installed handler is the same */
|
|
|
|
if (!Handler ||
|
|
Handler != AcpiGbl_TableHandler)
|
|
{
|
|
Status = AE_BAD_PARAMETER;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Remove the handler */
|
|
|
|
AcpiGbl_TableHandler = NULL;
|
|
|
|
Cleanup:
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiRemoveTableHandler)
|