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1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.02/******************************************************************************3 *4 * Module Name: tbprint - Table output utilities5 *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_TABLES16ACPI_MODULE_NAME("tbprint")17 18/* Local prototypes */19static void acpi_tb_fix_string(char *string, acpi_size length);20 21static void22acpi_tb_cleanup_table_header(struct acpi_table_header *out_header,23 struct acpi_table_header *header);24 25/*******************************************************************************26 *27 * FUNCTION: acpi_tb_fix_string28 *29 * PARAMETERS: string - String to be repaired30 * length - Maximum length31 *32 * RETURN: None33 *34 * DESCRIPTION: Replace every non-printable or non-ascii byte in the string35 * with a question mark '?'.36 *37 ******************************************************************************/38 39static 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_header55 *56 * PARAMETERS: out_header - Where the cleaned header is returned57 * header - Input ACPI table header58 *59 * RETURN: Returns the cleaned header in out_header60 *61 * DESCRIPTION: Copy the table header and ensure that all "string" fields in62 * the header consist of printable characters.63 *64 ******************************************************************************/65 66static void67acpi_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_header82 *83 * PARAMETERS: address - Table physical address84 * header - Table header85 *86 * RETURN: None87 *88 * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.89 *90 ******************************************************************************/91 92void93acpi_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