tbfind.c revision 1.1.1.2.4.2
1 1.1.1.2.4.2 rmind /****************************************************************************** 2 1.1.1.2.4.2 rmind * 3 1.1.1.2.4.2 rmind * Module Name: tbfind - find table 4 1.1.1.2.4.2 rmind * 5 1.1.1.2.4.2 rmind *****************************************************************************/ 6 1.1.1.2.4.2 rmind 7 1.1.1.2.4.2 rmind /* 8 1.1.1.2.4.2 rmind * Copyright (C) 2000 - 2011, Intel Corp. 9 1.1.1.2.4.2 rmind * All rights reserved. 10 1.1.1.2.4.2 rmind * 11 1.1.1.2.4.2 rmind * Redistribution and use in source and binary forms, with or without 12 1.1.1.2.4.2 rmind * modification, are permitted provided that the following conditions 13 1.1.1.2.4.2 rmind * are met: 14 1.1.1.2.4.2 rmind * 1. Redistributions of source code must retain the above copyright 15 1.1.1.2.4.2 rmind * notice, this list of conditions, and the following disclaimer, 16 1.1.1.2.4.2 rmind * without modification. 17 1.1.1.2.4.2 rmind * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.1.1.2.4.2 rmind * substantially similar to the "NO WARRANTY" disclaimer below 19 1.1.1.2.4.2 rmind * ("Disclaimer") and any redistribution must be conditioned upon 20 1.1.1.2.4.2 rmind * including a substantially similar Disclaimer requirement for further 21 1.1.1.2.4.2 rmind * binary redistribution. 22 1.1.1.2.4.2 rmind * 3. Neither the names of the above-listed copyright holders nor the names 23 1.1.1.2.4.2 rmind * of any contributors may be used to endorse or promote products derived 24 1.1.1.2.4.2 rmind * from this software without specific prior written permission. 25 1.1.1.2.4.2 rmind * 26 1.1.1.2.4.2 rmind * Alternatively, this software may be distributed under the terms of the 27 1.1.1.2.4.2 rmind * GNU General Public License ("GPL") version 2 as published by the Free 28 1.1.1.2.4.2 rmind * Software Foundation. 29 1.1.1.2.4.2 rmind * 30 1.1.1.2.4.2 rmind * NO WARRANTY 31 1.1.1.2.4.2 rmind * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.1.1.2.4.2 rmind * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.1.1.2.4.2 rmind * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.1.1.2.4.2 rmind * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.1.1.2.4.2 rmind * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.1.1.2.4.2 rmind * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.1.1.2.4.2 rmind * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.1.1.2.4.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.1.1.2.4.2 rmind * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.1.1.2.4.2 rmind * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.1.1.2.4.2 rmind * POSSIBILITY OF SUCH DAMAGES. 42 1.1.1.2.4.2 rmind */ 43 1.1.1.2.4.2 rmind 44 1.1.1.2.4.2 rmind #define __TBFIND_C__ 45 1.1.1.2.4.2 rmind 46 1.1.1.2.4.2 rmind #include "acpi.h" 47 1.1.1.2.4.2 rmind #include "accommon.h" 48 1.1.1.2.4.2 rmind #include "actables.h" 49 1.1.1.2.4.2 rmind 50 1.1.1.2.4.2 rmind #define _COMPONENT ACPI_TABLES 51 1.1.1.2.4.2 rmind ACPI_MODULE_NAME ("tbfind") 52 1.1.1.2.4.2 rmind 53 1.1.1.2.4.2 rmind 54 1.1.1.2.4.2 rmind /******************************************************************************* 55 1.1.1.2.4.2 rmind * 56 1.1.1.2.4.2 rmind * FUNCTION: AcpiTbFindTable 57 1.1.1.2.4.2 rmind * 58 1.1.1.2.4.2 rmind * PARAMETERS: Signature - String with ACPI table signature 59 1.1.1.2.4.2 rmind * OemId - String with the table OEM ID 60 1.1.1.2.4.2 rmind * OemTableId - String with the OEM Table ID 61 1.1.1.2.4.2 rmind * TableIndex - Where the table index is returned 62 1.1.1.2.4.2 rmind * 63 1.1.1.2.4.2 rmind * RETURN: Status and table index 64 1.1.1.2.4.2 rmind * 65 1.1.1.2.4.2 rmind * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the 66 1.1.1.2.4.2 rmind * Signature, OEM ID and OEM Table ID. Returns an index that can 67 1.1.1.2.4.2 rmind * be used to get the table header or entire table. 68 1.1.1.2.4.2 rmind * 69 1.1.1.2.4.2 rmind ******************************************************************************/ 70 1.1.1.2.4.2 rmind 71 1.1.1.2.4.2 rmind ACPI_STATUS 72 1.1.1.2.4.2 rmind AcpiTbFindTable ( 73 1.1.1.2.4.2 rmind char *Signature, 74 1.1.1.2.4.2 rmind char *OemId, 75 1.1.1.2.4.2 rmind char *OemTableId, 76 1.1.1.2.4.2 rmind UINT32 *TableIndex) 77 1.1.1.2.4.2 rmind { 78 1.1.1.2.4.2 rmind UINT32 i; 79 1.1.1.2.4.2 rmind ACPI_STATUS Status; 80 1.1.1.2.4.2 rmind ACPI_TABLE_HEADER Header; 81 1.1.1.2.4.2 rmind 82 1.1.1.2.4.2 rmind 83 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (TbFindTable); 84 1.1.1.2.4.2 rmind 85 1.1.1.2.4.2 rmind 86 1.1.1.2.4.2 rmind /* Normalize the input strings */ 87 1.1.1.2.4.2 rmind 88 1.1.1.2.4.2 rmind ACPI_MEMSET (&Header, 0, sizeof (ACPI_TABLE_HEADER)); 89 1.1.1.2.4.2 rmind ACPI_STRNCPY (Header.Signature, Signature, ACPI_NAME_SIZE); 90 1.1.1.2.4.2 rmind ACPI_STRNCPY (Header.OemId, OemId, ACPI_OEM_ID_SIZE); 91 1.1.1.2.4.2 rmind ACPI_STRNCPY (Header.OemTableId, OemTableId, ACPI_OEM_TABLE_ID_SIZE); 92 1.1.1.2.4.2 rmind 93 1.1.1.2.4.2 rmind /* Search for the table */ 94 1.1.1.2.4.2 rmind 95 1.1.1.2.4.2 rmind for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i) 96 1.1.1.2.4.2 rmind { 97 1.1.1.2.4.2 rmind if (ACPI_MEMCMP (&(AcpiGbl_RootTableList.Tables[i].Signature), 98 1.1.1.2.4.2 rmind Header.Signature, ACPI_NAME_SIZE)) 99 1.1.1.2.4.2 rmind { 100 1.1.1.2.4.2 rmind /* Not the requested table */ 101 1.1.1.2.4.2 rmind 102 1.1.1.2.4.2 rmind continue; 103 1.1.1.2.4.2 rmind } 104 1.1.1.2.4.2 rmind 105 1.1.1.2.4.2 rmind /* Table with matching signature has been found */ 106 1.1.1.2.4.2 rmind 107 1.1.1.2.4.2 rmind if (!AcpiGbl_RootTableList.Tables[i].Pointer) 108 1.1.1.2.4.2 rmind { 109 1.1.1.2.4.2 rmind /* Table is not currently mapped, map it */ 110 1.1.1.2.4.2 rmind 111 1.1.1.2.4.2 rmind Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]); 112 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 113 1.1.1.2.4.2 rmind { 114 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 115 1.1.1.2.4.2 rmind } 116 1.1.1.2.4.2 rmind 117 1.1.1.2.4.2 rmind if (!AcpiGbl_RootTableList.Tables[i].Pointer) 118 1.1.1.2.4.2 rmind { 119 1.1.1.2.4.2 rmind continue; 120 1.1.1.2.4.2 rmind } 121 1.1.1.2.4.2 rmind } 122 1.1.1.2.4.2 rmind 123 1.1.1.2.4.2 rmind /* Check for table match on all IDs */ 124 1.1.1.2.4.2 rmind 125 1.1.1.2.4.2 rmind if (!ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->Signature, 126 1.1.1.2.4.2 rmind Header.Signature, ACPI_NAME_SIZE) && 127 1.1.1.2.4.2 rmind (!OemId[0] || 128 1.1.1.2.4.2 rmind !ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->OemId, 129 1.1.1.2.4.2 rmind Header.OemId, ACPI_OEM_ID_SIZE)) && 130 1.1.1.2.4.2 rmind (!OemTableId[0] || 131 1.1.1.2.4.2 rmind !ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->OemTableId, 132 1.1.1.2.4.2 rmind Header.OemTableId, ACPI_OEM_TABLE_ID_SIZE))) 133 1.1.1.2.4.2 rmind { 134 1.1.1.2.4.2 rmind *TableIndex = i; 135 1.1.1.2.4.2 rmind 136 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Found table [%4.4s]\n", 137 1.1.1.2.4.2 rmind Header.Signature)); 138 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 139 1.1.1.2.4.2 rmind } 140 1.1.1.2.4.2 rmind } 141 1.1.1.2.4.2 rmind 142 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_NOT_FOUND); 143 1.1.1.2.4.2 rmind } 144
Indexes created Wed Oct 22 13:09:56 GMT 2025