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Diffstat (limited to 'sys/contrib/dev/acpica/tbxface.c')
| -rw-r--r-- | sys/contrib/dev/acpica/tbxface.c | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/tbxface.c b/sys/contrib/dev/acpica/tbxface.c new file mode 100644 index 0000000..79479d9 --- /dev/null +++ b/sys/contrib/dev/acpica/tbxface.c @@ -0,0 +1,541 @@ +/****************************************************************************** + * + * Module Name: tbxface - Public interfaces to the ACPI subsystem + * ACPI table oriented interfaces + * $Revision: 64 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp. + * All rights reserved. + * + * 2. License + * + * 2.1. This is your license from Intel Corp. under its intellectual property + * rights. You may have additional license terms from the party that provided + * you this software, covering your right to use that party's intellectual + * property rights. + * + * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a + * copy of the source code appearing in this file ("Covered Code") an + * irrevocable, perpetual, worldwide license under Intel's copyrights in the + * base code distributed originally by Intel ("Original Intel Code") to copy, + * make derivatives, distribute, use and display any portion of the Covered + * Code in any form, with the right to sublicense such rights; and + * + * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent + * license (with the right to sublicense), under only those claims of Intel + * patents that are infringed by the Original Intel Code, to make, use, sell, + * offer to sell, and import the Covered Code and derivative works thereof + * solely to the minimum extent necessary to exercise the above copyright + * license, and in no event shall the patent license extend to any additions + * to or modifications of the Original Intel Code. No other license or right + * is granted directly or by implication, estoppel or otherwise; + * + * The above copyright and patent license is granted only if the following + * conditions are met: + * + * 3. Conditions + * + * 3.1. Redistribution of Source with Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification with rights to further distribute source must include + * the above Copyright Notice, the above License, this list of Conditions, + * and the following Disclaimer and Export Compliance provision. In addition, + * Licensee must cause all Covered Code to which Licensee contributes to + * contain a file documenting the changes Licensee made to create that Covered + * Code and the date of any change. Licensee must include in that file the + * documentation of any changes made by any predecessor Licensee. Licensee + * must include a prominent statement that the modification is derived, + * directly or indirectly, from Original Intel Code. + * + * 3.2. Redistribution of Source with no Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification without rights to further distribute source must + * include the following Disclaimer and Export Compliance provision in the + * documentation and/or other materials provided with distribution. In + * addition, Licensee may not authorize further sublicense of source of any + * portion of the Covered Code, and must include terms to the effect that the + * license from Licensee to its licensee is limited to the intellectual + * property embodied in the software Licensee provides to its licensee, and + * not to intellectual property embodied in modifications its licensee may + * make. + * + * 3.3. Redistribution of Executable. Redistribution in executable form of any + * substantial portion of the Covered Code or modification must reproduce the + * above Copyright Notice, and the following Disclaimer and Export Compliance + * provision in the documentation and/or other materials provided with the + * distribution. + * + * 3.4. Intel retains all right, title, and interest in and to the Original + * Intel Code. + * + * 3.5. Neither the name Intel nor any other trademark owned or controlled by + * Intel shall be used in advertising or otherwise to promote the sale, use or + * other dealings in products derived from or relating to the Covered Code + * without prior written authorization from Intel. + * + * 4. Disclaimer and Export Compliance + * + * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED + * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE + * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, + * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY + * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A + * PARTICULAR PURPOSE. + * + * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES + * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR + * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, + * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY + * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL + * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS + * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY + * LIMITED REMEDY. + * + * 4.3. Licensee shall not export, either directly or indirectly, any of this + * software or system incorporating such software without first obtaining any + * required license or other approval from the U. S. Department of Commerce or + * any other agency or department of the United States Government. In the + * event Licensee exports any such software from the United States or + * re-exports any such software from a foreign destination, Licensee shall + * ensure that the distribution and export/re-export of the software is in + * compliance with all laws, regulations, orders, or other restrictions of the + * U.S. Export Administration Regulations. Licensee agrees that neither it nor + * any of its subsidiaries will export/re-export any technical data, process, + * software, or service, directly or indirectly, to any country for which the + * United States government or any agency thereof requires an export license, + * other governmental approval, or letter of assurance, without first obtaining + * such license, approval or letter. + * + *****************************************************************************/ + +#define __TBXFACE_C__ + +#include "acpi.h" +#include "acnamesp.h" +#include "actables.h" + + +#define _COMPONENT ACPI_TABLES + ACPI_MODULE_NAME ("tbxface") + + +/******************************************************************************* + * + * FUNCTION: AcpiLoadTables + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: This function is called to load the ACPI tables from the + * provided RSDT + * + ******************************************************************************/ + +ACPI_STATUS +AcpiLoadTables (void) +{ + ACPI_POINTER RsdpAddress; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE ("AcpiLoadTables"); + + + /* Get the RSDP */ + + Status = AcpiOsGetRootPointer (ACPI_LOGICAL_ADDRESSING, + &RsdpAddress); + if (ACPI_FAILURE (Status)) + { + ACPI_REPORT_ERROR (("AcpiLoadTables: Could not get RSDP, %s\n", + AcpiFormatException (Status))); + goto ErrorExit; + } + + /* Map and validate the RSDP */ + + AcpiGbl_TableFlags = RsdpAddress.PointerType; + + Status = AcpiTbVerifyRsdp (&RsdpAddress); + if (ACPI_FAILURE (Status)) + { + ACPI_REPORT_ERROR (("AcpiLoadTables: RSDP Failed validation: %s\n", + AcpiFormatException (Status))); + goto ErrorExit; + } + + /* Get the RSDT via the RSDP */ + + Status = AcpiTbGetTableRsdt (); + if (ACPI_FAILURE (Status)) + { + ACPI_REPORT_ERROR (("AcpiLoadTables: Could not load RSDT: %s\n", + AcpiFormatException (Status))); + goto ErrorExit; + } + + /* Now get the tables needed by this subsystem (FADT, DSDT, etc.) */ + + Status = AcpiTbGetRequiredTables (); + if (ACPI_FAILURE (Status)) + { + ACPI_REPORT_ERROR (("AcpiLoadTables: Error getting required tables (DSDT/FADT/FACS): %s\n", + AcpiFormatException (Status))); + goto ErrorExit; + } + + ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); + + + /* Load the namespace from the tables */ + + Status = AcpiNsLoadNamespace (); + if (ACPI_FAILURE (Status)) + { + ACPI_REPORT_ERROR (("AcpiLoadTables: Could not load namespace: %s\n", + AcpiFormatException (Status))); + goto ErrorExit; + } + + return_ACPI_STATUS (AE_OK); + + +ErrorExit: + ACPI_REPORT_ERROR (("AcpiLoadTables: Could not load tables: %s\n", + AcpiFormatException (Status))); + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiLoadTable + * + * PARAMETERS: TablePtr - pointer to a buffer containing the entire + * table to be loaded + * + * RETURN: Status + * + * DESCRIPTION: This function is called to load a table from the caller's + * buffer. The buffer must contain an entire ACPI Table including + * a valid header. The header fields will be verified, and if it + * is determined that the table is invalid, the call will fail. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiLoadTable ( + ACPI_TABLE_HEADER *TablePtr) +{ + ACPI_STATUS Status; + ACPI_TABLE_DESC TableInfo; + ACPI_POINTER Address; + + + ACPI_FUNCTION_TRACE ("AcpiLoadTable"); + + + if (!TablePtr) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Copy the table to a local buffer */ + + Address.PointerType = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING; + Address.Pointer.Logical = TablePtr; + + Status = AcpiTbGetTableBody (&Address, TablePtr, &TableInfo); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Install the new table into the local data structures */ + + Status = AcpiTbInstallTable (&TableInfo); + if (ACPI_FAILURE (Status)) + { + /* Free table allocated by AcpiTbGetTableBody */ + + AcpiTbDeleteSingleTable (&TableInfo); + return_ACPI_STATUS (Status); + } + + /* Convert the table to common format if necessary */ + + switch (TableInfo.Type) + { + case ACPI_TABLE_FADT: + + Status = AcpiTbConvertTableFadt (); + break; + + case ACPI_TABLE_FACS: + + Status = AcpiTbBuildCommonFacs (&TableInfo); + break; + + default: + /* Load table into namespace if it contains executable AML */ + + Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode); + break; + } + + if (ACPI_FAILURE (Status)) + { + /* Uninstall table and free the buffer */ + + (void) AcpiTbUninstallTable (TableInfo.InstalledDesc); + } + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiUnloadTable + * + * PARAMETERS: TableType - Type of table to be unloaded + * + * RETURN: Status + * + * DESCRIPTION: This routine is used to force the unload of a table + * + ******************************************************************************/ + +ACPI_STATUS +AcpiUnloadTable ( + ACPI_TABLE_TYPE TableType) +{ + ACPI_TABLE_DESC *TableDesc; + + + ACPI_FUNCTION_TRACE ("AcpiUnloadTable"); + + + /* Parameter validation */ + + if (TableType > ACPI_TABLE_MAX) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + + /* Find all tables of the requested type */ + + TableDesc = AcpiGbl_TableLists[TableType].Next; + while (TableDesc) + { + /* + * Delete all namespace entries owned by this table. Note that these + * entries can appear anywhere in the namespace by virtue of the AML + * "Scope" operator. Thus, we need to track ownership by an ID, not + * simply a position within the hierarchy + */ + AcpiNsDeleteNamespaceByOwner (TableDesc->TableId); + + TableDesc = TableDesc->Next; + } + + /* Delete (or unmap) all tables of this type */ + + AcpiTbDeleteTablesByType (TableType); + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiGetTableHeader + * + * PARAMETERS: TableType - one of the defined table types + * Instance - the non zero instance of the table, allows + * support for multiple tables of the same type + * see AcpiGbl_AcpiTableFlag + * OutTableHeader - pointer to the ACPI_TABLE_HEADER if successful + * + * DESCRIPTION: This function is called to get an ACPI table header. The caller + * supplies an pointer to a data area sufficient to contain an ACPI + * ACPI_TABLE_HEADER structure. + * + * The header contains a length field that can be used to determine + * the size of the buffer needed to contain the entire table. This + * function is not valid for the RSD PTR table since it does not + * have a standard header and is fixed length. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiGetTableHeader ( + ACPI_TABLE_TYPE TableType, + UINT32 Instance, + ACPI_TABLE_HEADER *OutTableHeader) +{ + ACPI_TABLE_HEADER *TblPtr; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE ("AcpiGetTableHeader"); + + + if ((Instance == 0) || + (TableType == ACPI_TABLE_RSDP) || + (!OutTableHeader)) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Check the table type and instance */ + + if ((TableType > ACPI_TABLE_MAX) || + (ACPI_IS_SINGLE_TABLE (AcpiGbl_TableData[TableType].Flags) && + Instance > 1)) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + + /* Get a pointer to the entire table */ + + Status = AcpiTbGetTablePtr (TableType, Instance, &TblPtr); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * The function will return a NULL pointer if the table is not loaded + */ + if (TblPtr == NULL) + { + return_ACPI_STATUS (AE_NOT_EXIST); + } + + /* + * Copy the header to the caller's buffer + */ + ACPI_MEMCPY ((void *) OutTableHeader, (void *) TblPtr, + sizeof (ACPI_TABLE_HEADER)); + + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiGetTable + * + * PARAMETERS: TableType - one of the defined table types + * Instance - the non zero instance of the table, allows + * support for multiple tables of the same type + * see AcpiGbl_AcpiTableFlag + * RetBuffer - pointer to a structure containing a buffer to + * receive the table + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get an ACPI table. The caller + * supplies an OutBuffer large enough to contain the entire ACPI + * table. The caller should call the AcpiGetTableHeader function + * first to determine the buffer size needed. Upon completion + * the OutBuffer->Length field will indicate the number of bytes + * copied into the OutBuffer->BufPtr buffer. This table will be + * a complete table including the header. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiGetTable ( + ACPI_TABLE_TYPE TableType, + UINT32 Instance, + ACPI_BUFFER *RetBuffer) +{ + ACPI_TABLE_HEADER *TblPtr; + ACPI_STATUS Status; + ACPI_SIZE TableLength; + + + ACPI_FUNCTION_TRACE ("AcpiGetTable"); + + + /* Parameter validation */ + + if (Instance == 0) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiUtValidateBuffer (RetBuffer); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Check the table type and instance */ + + if ((TableType > ACPI_TABLE_MAX) || + (ACPI_IS_SINGLE_TABLE (AcpiGbl_TableData[TableType].Flags) && + Instance > 1)) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + + /* Get a pointer to the entire table */ + + Status = AcpiTbGetTablePtr (TableType, Instance, &TblPtr); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * AcpiTbGetTablePtr will return a NULL pointer if the + * table is not loaded. + */ + if (TblPtr == NULL) + { + return_ACPI_STATUS (AE_NOT_EXIST); + } + + /* Get the table length */ + + if (TableType == ACPI_TABLE_RSDP) + { + /* + * RSD PTR is the only "table" without a header + */ + TableLength = sizeof (RSDP_DESCRIPTOR); + } + else + { + TableLength = (ACPI_SIZE) TblPtr->Length; + } + + /* Validate/Allocate/Clear caller buffer */ + + Status = AcpiUtInitializeBuffer (RetBuffer, TableLength); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Copy the table to the buffer */ + + ACPI_MEMCPY ((void *) RetBuffer->Pointer, (void *) TblPtr, TableLength); + return_ACPI_STATUS (AE_OK); +} + + |
