diff options
Diffstat (limited to 'sys/contrib/dev/acpica/tbxface.c')
| -rw-r--r-- | sys/contrib/dev/acpica/tbxface.c | 674 |
1 files changed, 674 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..a7a27c6 --- /dev/null +++ b/sys/contrib/dev/acpica/tbxface.c @@ -0,0 +1,674 @@ +/****************************************************************************** + * + * Module Name: tbxface - Public interfaces to the ACPI subsystem + * ACPI table oriented interfaces + * $Revision: 1.86 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2007, 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 <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acnamesp.h> +#include <contrib/dev/acpica/actables.h> + +#define _COMPONENT ACPI_TABLES + ACPI_MODULE_NAME ("tbxface") + +/* Local prototypes */ + +static ACPI_STATUS +AcpiTbLoadNamespace ( + void); + + +/******************************************************************************* + * + * 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.Size = 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 + * AllowRealloc - 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 +AcpiInitializeTables ( + ACPI_TABLE_DESC *InitialTableArray, + UINT32 InitialTableCount, + BOOLEAN AllowResize) +{ + ACPI_PHYSICAL_ADDRESS RsdpAddress; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (AcpiInitializeTables); + + + /* + * Set up the Root Table Array + * 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 */ + + ACPI_MEMSET (InitialTableArray, 0, + InitialTableCount * sizeof (ACPI_TABLE_DESC)); + + AcpiGbl_RootTableList.Tables = InitialTableArray; + AcpiGbl_RootTableList.Size = 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 useable format. + */ + Status = AcpiTbParseRootTable (RsdpAddress, ACPI_TABLE_ORIGIN_MAPPED); + return_ACPI_STATUS (Status); +} + +ACPI_EXPORT_SYMBOL (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 +AcpiReallocateRootTable ( + void) +{ + ACPI_TABLE_DESC *Tables; + ACPI_SIZE NewSize; + + + ACPI_FUNCTION_TRACE (AcpiReallocateRootTable); + + + /* + * Only reallocate the root table if the host provided a static buffer + * for the table array in the call to AcpiInitializeTables. + */ + if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) + { + return_ACPI_STATUS (AE_SUPPORT); + } + + NewSize = (AcpiGbl_RootTableList.Count + ACPI_ROOT_TABLE_SIZE_INCREMENT) * + sizeof (ACPI_TABLE_DESC); + + /* Create new array and copy the old array */ + + Tables = ACPI_ALLOCATE_ZEROED (NewSize); + if (!Tables) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + ACPI_MEMCPY (Tables, AcpiGbl_RootTableList.Tables, NewSize); + + AcpiGbl_RootTableList.Size = AcpiGbl_RootTableList.Count; + AcpiGbl_RootTableList.Tables = Tables; + AcpiGbl_RootTableList.Flags = + ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE; + + return_ACPI_STATUS (AE_OK); +} + +ACPI_EXPORT_SYMBOL (AcpiReallocateRootTable) + + +/****************************************************************************** + * + * FUNCTION: AcpiGetTableHeader + * + * PARAMETERS: Signature - ACPI signature of needed table + * Instance - Which instance (for SSDTs) + * OutTableHeader - The pointer to the table header to fill + * + * RETURN: Status and pointer to mapped table header + * + * DESCRIPTION: Finds an ACPI table header. + * + * NOTE: Caller is responsible in unmapping the header with + * AcpiOsUnmapMemory + * + *****************************************************************************/ + +ACPI_STATUS +AcpiGetTableHeader ( + char *Signature, + ACPI_NATIVE_UINT Instance, + ACPI_TABLE_HEADER *OutTableHeader) +{ + ACPI_NATIVE_UINT i; + ACPI_NATIVE_UINT 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.Count; i++) + { + if (!ACPI_COMPARE_NAME (&(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_MAPPED) + { + Header = AcpiOsMapMemory (AcpiGbl_RootTableList.Tables[i].Address, + sizeof (ACPI_TABLE_HEADER)); + if (!Header) + { + return AE_NO_MEMORY; + } + + ACPI_MEMCPY (OutTableHeader, Header, sizeof(ACPI_TABLE_HEADER)); + AcpiOsUnmapMemory (Header, sizeof(ACPI_TABLE_HEADER)); + } + + else + { + return AE_NOT_FOUND; + } + } + + else + { + ACPI_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 table + * + * DESCRIPTION: Finds and verifies an ACPI table. + * + *****************************************************************************/ + +ACPI_STATUS +AcpiGetTable ( + char *Signature, + ACPI_NATIVE_UINT Instance, + ACPI_TABLE_HEADER **OutTable) +{ + ACPI_NATIVE_UINT i; + ACPI_NATIVE_UINT j; + ACPI_STATUS Status; + + + /* Parameter validation */ + + if (!Signature || !OutTable) + { + return (AE_BAD_PARAMETER); + } + + /* + * Walk the root table list + */ + for (i = 0, j = 0; i < AcpiGbl_RootTableList.Count; i++) + { + if (!ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature), + Signature)) + { + continue; + } + + if (++j < Instance) + { + continue; + } + + Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]); + if (ACPI_SUCCESS (Status)) + { + *OutTable = AcpiGbl_RootTableList.Tables[i].Pointer; + } + + return (Status); + } + + return (AE_NOT_FOUND); +} + +ACPI_EXPORT_SYMBOL (AcpiGetTable) + + +/******************************************************************************* + * + * FUNCTION: AcpiGetTableByIndex + * + * PARAMETERS: TableIndex - Table index + * Table - Where the pointer to the table is returned + * + * RETURN: Status and pointer to the table + * + * DESCRIPTION: Obtain a table by an index into the global table list. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiGetTableByIndex ( + ACPI_NATIVE_UINT TableIndex, + ACPI_TABLE_HEADER **Table) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (AcpiGetTableByIndex); + + + /* Parameter validation */ + + if (!Table) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); + + /* Validate index */ + + if (TableIndex >= AcpiGbl_RootTableList.Count) + { + (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + if (!AcpiGbl_RootTableList.Tables[TableIndex].Pointer) + { + /* Table is not mapped, map it */ + + Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[TableIndex]); + if (ACPI_FAILURE (Status)) + { + (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); + return_ACPI_STATUS (Status); + } + } + + *Table = AcpiGbl_RootTableList.Tables[TableIndex].Pointer; + (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); + return_ACPI_STATUS (AE_OK); +} + +ACPI_EXPORT_SYMBOL (AcpiGetTableByIndex) + + +/******************************************************************************* + * + * FUNCTION: AcpiTbLoadNamespace + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in + * the RSDT/XSDT. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiTbLoadNamespace ( + void) +{ + ACPI_STATUS Status; + ACPI_TABLE_HEADER *Table; + ACPI_NATIVE_UINT i; + BOOLEAN DsdtOverriden; + + + ACPI_FUNCTION_TRACE (TbLoadNamespace); + + + (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); + + /* + * Load the namespace. The DSDT is required, but any SSDT and PSDT tables + * are optional. + */ + if (!AcpiGbl_RootTableList.Count || + !ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Signature), + ACPI_SIG_DSDT) || + ACPI_FAILURE (AcpiTbVerifyTable(&AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT]))) + { + Status = AE_NO_ACPI_TABLES; + goto UnlockAndExit; + } + + /* + * Find DSDT table + */ + DsdtOverriden = FALSE; + Status = AcpiOsTableOverride ( + AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Pointer, &Table); + if (ACPI_SUCCESS (Status) && Table) + { + /* + * DSDT table has been found + */ + AcpiTbDeleteTable (&AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT]); + AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Pointer = Table; + AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Length = Table->Length; + AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Flags = ACPI_TABLE_ORIGIN_UNKNOWN; + DsdtOverriden = TRUE; + + ACPI_INFO ((AE_INFO, "Table DSDT replaced by host OS")); + AcpiTbPrintTableHeader (0, Table); + } + + Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT]); + if (ACPI_FAILURE (Status)) + { + /* A valid DSDT is required */ + + Status = AE_NO_ACPI_TABLES; + goto UnlockAndExit; + } + + (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); + + /* + * Load and parse tables. + */ + Status = AcpiNsLoadTable (ACPI_TABLE_INDEX_DSDT, AcpiGbl_RootNode); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* + * Load any SSDT or PSDT tables. Note: Loop leaves tables locked + */ + (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); + for (i = 2; i < AcpiGbl_RootTableList.Count; ++i) + { + if ((!ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature), + ACPI_SIG_SSDT) && + !ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature), + ACPI_SIG_PSDT)) || + ACPI_FAILURE (AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]))) + { + continue; + } + + /* Delete SSDT when DSDT is overriden */ + + if (ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature), + ACPI_SIG_SSDT) && DsdtOverriden) + { + AcpiTbDeleteTable (&AcpiGbl_RootTableList.Tables[i]); + continue; + } + + /* Ignore errors while loading tables, get as many as possible */ + + (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); + (void) AcpiNsLoadTable (i, AcpiGbl_RootNode); + (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); + +UnlockAndExit: + (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiLoadTables + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT + * + ******************************************************************************/ + +ACPI_STATUS +AcpiLoadTables ( + void) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (AcpiLoadTables); + + + /* + * Load the namespace from the tables + */ + Status = AcpiTbLoadNamespace (); + if (ACPI_FAILURE (Status)) + { + ACPI_EXCEPTION ((AE_INFO, Status, "While loading namespace from ACPI tables")); + } + + return_ACPI_STATUS (Status); +} + +ACPI_EXPORT_SYMBOL (AcpiLoadTables) + |
