1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 2 /****************************************************************************** 3 * 4 * Module Name: tbprint - Table output utilities 5 * 6 * Copyright (C) 2000 - 2023, Intel Corp. 7 * 8 *****************************************************************************/ 9 10 #include <acpi/acpi.h> 11 #include "accommon.h" 12 #include "actables.h" 13 #include "acutils.h" 14 15 #define _COMPONENT ACPI_TABLES 16 ACPI_MODULE_NAME("tbprint") 17 18 /* Local prototypes */ 19 static void acpi_tb_fix_string(char *string, acpi_size length); 20 21 static void 22 acpi_tb_cleanup_table_header(struct acpi_table_header *out_header, 23 struct acpi_table_header *header); 24 25 /******************************************************************************* 26 * 27 * FUNCTION: acpi_tb_fix_string 28 * 29 * PARAMETERS: string - String to be repaired 30 * length - Maximum length 31 * 32 * RETURN: None 33 * 34 * DESCRIPTION: Replace every non-printable or non-ascii byte in the string 35 * with a question mark '?'. 36 * 37 ******************************************************************************/ 38 39 static void acpi_tb_fix_string(char *string, acpi_size length) 40 { 41 42 while (length && *string) { 43 if (!isprint((int)(u8)*string)) { 44 *string = '?'; 45 } 46 47 string++; 48 length--; 49 } 50 } 51 52 /******************************************************************************* 53 * 54 * FUNCTION: acpi_tb_cleanup_table_header 55 * 56 * PARAMETERS: out_header - Where the cleaned header is returned 57 * header - Input ACPI table header 58 * 59 * RETURN: Returns the cleaned header in out_header 60 * 61 * DESCRIPTION: Copy the table header and ensure that all "string" fields in 62 * the header consist of printable characters. 63 * 64 ******************************************************************************/ 65 66 static void 67 acpi_tb_cleanup_table_header(struct acpi_table_header *out_header, 68 struct acpi_table_header *header) 69 { 70 71 memcpy(out_header, header, sizeof(struct acpi_table_header)); 72 73 acpi_tb_fix_string(out_header->signature, ACPI_NAMESEG_SIZE); 74 acpi_tb_fix_string(out_header->oem_id, ACPI_OEM_ID_SIZE); 75 acpi_tb_fix_string(out_header->oem_table_id, ACPI_OEM_TABLE_ID_SIZE); 76 acpi_tb_fix_string(out_header->asl_compiler_id, ACPI_NAMESEG_SIZE); 77 } 78 79 /******************************************************************************* 80 * 81 * FUNCTION: acpi_tb_print_table_header 82 * 83 * PARAMETERS: address - Table physical address 84 * header - Table header 85 * 86 * RETURN: None 87 * 88 * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP. 89 * 90 ******************************************************************************/ 91 92 void 93 acpi_tb_print_table_header(acpi_physical_address address, 94 struct acpi_table_header *header) 95 { 96 struct acpi_table_header local_header; 97 98 if (ACPI_COMPARE_NAMESEG(header->signature, ACPI_SIG_FACS)) { 99 100 /* FACS only has signature and length fields */ 101 102 ACPI_INFO(("%-4.4s 0x%8.8X%8.8X %06X", 103 header->signature, ACPI_FORMAT_UINT64(address), 104 header->length)); 105 } else if (ACPI_VALIDATE_RSDP_SIG(ACPI_CAST_PTR(struct acpi_table_rsdp, 106 header)->signature)) { 107 108 /* RSDP has no common fields */ 109 110 memcpy(local_header.oem_id, 111 ACPI_CAST_PTR(struct acpi_table_rsdp, header)->oem_id, 112 ACPI_OEM_ID_SIZE); 113 acpi_tb_fix_string(local_header.oem_id, ACPI_OEM_ID_SIZE); 114 115 ACPI_INFO(("RSDP 0x%8.8X%8.8X %06X (v%.2d %-6.6s)", 116 ACPI_FORMAT_UINT64(address), 117 (ACPI_CAST_PTR(struct acpi_table_rsdp, header)-> 118 revision > 119 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp, 120 header)->length : 20, 121 ACPI_CAST_PTR(struct acpi_table_rsdp, 122 header)->revision, 123 local_header.oem_id)); 124 } else { 125 /* Standard ACPI table with full common header */ 126 127 acpi_tb_cleanup_table_header(&local_header, header); 128 129 ACPI_INFO(("%-4.4s 0x%8.8X%8.8X" 130 " %06X (v%.2d %-6.6s %-8.8s %08X %-4.4s %08X)", 131 local_header.signature, ACPI_FORMAT_UINT64(address), 132 local_header.length, local_header.revision, 133 local_header.oem_id, local_header.oem_table_id, 134 local_header.oem_revision, 135 local_header.asl_compiler_id, 136 local_header.asl_compiler_revision)); 137 } 138 } 139