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Diffstat (limited to 'sys/contrib/dev/acpica/tbxfroot.c')
| -rw-r--r-- | sys/contrib/dev/acpica/tbxfroot.c | 370 |
1 files changed, 0 insertions, 370 deletions
diff --git a/sys/contrib/dev/acpica/tbxfroot.c b/sys/contrib/dev/acpica/tbxfroot.c deleted file mode 100644 index afc30ad..0000000 --- a/sys/contrib/dev/acpica/tbxfroot.c +++ /dev/null @@ -1,370 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbxfroot - Find the root ACPI table (RSDT) - * $Revision: 1.105 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 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 __TBXFROOT_C__ - -#include <contrib/dev/acpica/acpi.h> -#include <contrib/dev/acpica/actables.h> - - -#define _COMPONENT ACPI_TABLES - ACPI_MODULE_NAME ("tbxfroot") - -/* Local prototypes */ - -static UINT8 * -AcpiTbScanMemoryForRsdp ( - UINT8 *StartAddress, - UINT32 Length); - -static ACPI_STATUS -AcpiTbValidateRsdp ( - ACPI_TABLE_RSDP *Rsdp); - - -/******************************************************************************* - * - * FUNCTION: AcpiTbValidateRsdp - * - * PARAMETERS: Rsdp - Pointer to unvalidated RSDP - * - * RETURN: Status - * - * DESCRIPTION: Validate the RSDP (ptr) - * - ******************************************************************************/ - -static ACPI_STATUS -AcpiTbValidateRsdp ( - ACPI_TABLE_RSDP *Rsdp) -{ - ACPI_FUNCTION_ENTRY (); - - - /* - * The signature and checksum must both be correct - * - * Note: Sometimes there exists more than one RSDP in memory; the valid - * RSDP has a valid checksum, all others have an invalid checksum. - */ - if (ACPI_STRNCMP ((char *) Rsdp, ACPI_SIG_RSDP, sizeof (ACPI_SIG_RSDP)-1) != 0) - { - /* Nope, BAD Signature */ - - return (AE_BAD_SIGNATURE); - } - - /* Check the standard checksum */ - - if (AcpiTbChecksum ((UINT8 *) Rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) - { - return (AE_BAD_CHECKSUM); - } - - /* Check extended checksum if table version >= 2 */ - - if ((Rsdp->Revision >= 2) && - (AcpiTbChecksum ((UINT8 *) Rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) - { - return (AE_BAD_CHECKSUM); - } - - return (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiTbFindRsdp - * - * PARAMETERS: TableAddress - Where the table pointer is returned - * - * RETURN: Status, RSDP physical address - * - * DESCRIPTION: Search lower 1Mbyte of memory for the root system descriptor - * pointer structure. If it is found, set *RSDP to point to it. - * - * NOTE1: The RSDP must be either in the first 1K of the Extended - * BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.) - * Only a 32-bit physical address is necessary. - * - * NOTE2: This function is always available, regardless of the - * initialization state of the rest of ACPI. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiFindRootPointer ( - ACPI_NATIVE_UINT *TableAddress) -{ - UINT8 *TablePtr; - UINT8 *MemRover; - UINT32 PhysicalAddress; - - - ACPI_FUNCTION_TRACE (AcpiFindRootPointer); - - - /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */ - - TablePtr = AcpiOsMapMemory ( - (ACPI_PHYSICAL_ADDRESS) ACPI_EBDA_PTR_LOCATION, - ACPI_EBDA_PTR_LENGTH); - if (!TablePtr) - { - ACPI_ERROR ((AE_INFO, - "Could not map memory at %8.8X for length %X", - ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH)); - - return_ACPI_STATUS (AE_NO_MEMORY); - } - - ACPI_MOVE_16_TO_32 (&PhysicalAddress, TablePtr); - - /* Convert segment part to physical address */ - - PhysicalAddress <<= 4; - AcpiOsUnmapMemory (TablePtr, ACPI_EBDA_PTR_LENGTH); - - /* EBDA present? */ - - if (PhysicalAddress > 0x400) - { - /* - * 1b) Search EBDA paragraphs (EBDA is required to be a - * minimum of 1K length) - */ - TablePtr = AcpiOsMapMemory ( - (ACPI_NATIVE_UINT) PhysicalAddress, - ACPI_EBDA_WINDOW_SIZE); - if (!TablePtr) - { - ACPI_ERROR ((AE_INFO, - "Could not map memory at %8.8X for length %X", - PhysicalAddress, ACPI_EBDA_WINDOW_SIZE)); - - return_ACPI_STATUS (AE_NO_MEMORY); - } - - MemRover = AcpiTbScanMemoryForRsdp (TablePtr, ACPI_EBDA_WINDOW_SIZE); - AcpiOsUnmapMemory (TablePtr, ACPI_EBDA_WINDOW_SIZE); - - if (MemRover) - { - /* Return the physical address */ - - PhysicalAddress += (UINT32) ACPI_PTR_DIFF (MemRover, TablePtr); - - *TableAddress = PhysicalAddress; - return_ACPI_STATUS (AE_OK); - } - } - - /* - * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh - */ - TablePtr = AcpiOsMapMemory ( - (ACPI_PHYSICAL_ADDRESS) ACPI_HI_RSDP_WINDOW_BASE, - ACPI_HI_RSDP_WINDOW_SIZE); - - if (!TablePtr) - { - ACPI_ERROR ((AE_INFO, - "Could not map memory at %8.8X for length %X", - ACPI_HI_RSDP_WINDOW_BASE, ACPI_HI_RSDP_WINDOW_SIZE)); - - return_ACPI_STATUS (AE_NO_MEMORY); - } - - MemRover = AcpiTbScanMemoryForRsdp (TablePtr, ACPI_HI_RSDP_WINDOW_SIZE); - AcpiOsUnmapMemory (TablePtr, ACPI_HI_RSDP_WINDOW_SIZE); - - if (MemRover) - { - /* Return the physical address */ - - PhysicalAddress = (UINT32) - (ACPI_HI_RSDP_WINDOW_BASE + ACPI_PTR_DIFF (MemRover, TablePtr)); - - *TableAddress = PhysicalAddress; - return_ACPI_STATUS (AE_OK); - } - - /* A valid RSDP was not found */ - - ACPI_ERROR ((AE_INFO, "A valid RSDP was not found")); - return_ACPI_STATUS (AE_NOT_FOUND); -} - -ACPI_EXPORT_SYMBOL (AcpiFindRootPointer) - - -/******************************************************************************* - * - * FUNCTION: AcpiTbScanMemoryForRsdp - * - * PARAMETERS: StartAddress - Starting pointer for search - * Length - Maximum length to search - * - * RETURN: Pointer to the RSDP if found, otherwise NULL. - * - * DESCRIPTION: Search a block of memory for the RSDP signature - * - ******************************************************************************/ - -static UINT8 * -AcpiTbScanMemoryForRsdp ( - UINT8 *StartAddress, - UINT32 Length) -{ - ACPI_STATUS Status; - UINT8 *MemRover; - UINT8 *EndAddress; - - - ACPI_FUNCTION_TRACE (TbScanMemoryForRsdp); - - - EndAddress = StartAddress + Length; - - /* Search from given start address for the requested length */ - - for (MemRover = StartAddress; MemRover < EndAddress; - MemRover += ACPI_RSDP_SCAN_STEP) - { - /* The RSDP signature and checksum must both be correct */ - - Status = AcpiTbValidateRsdp (ACPI_CAST_PTR (ACPI_TABLE_RSDP, MemRover)); - if (ACPI_SUCCESS (Status)) - { - /* Sig and checksum valid, we have found a real RSDP */ - - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "RSDP located at physical address %p\n", MemRover)); - return_PTR (MemRover); - } - - /* No sig match or bad checksum, keep searching */ - } - - /* Searched entire block, no RSDP was found */ - - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "Searched entire block from %p, valid RSDP was not found\n", - StartAddress)); - return_PTR (NULL); -} - |
