579 lines
15 KiB
C
579 lines
15 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
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/******************************************************************************
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*
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* Module Name: utdecode - Utility decoding routines (value-to-string)
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*
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* Copyright (C) 2000 - 2018, Intel Corp.
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*
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*****************************************************************************/
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#include <acpi/acpi.h>
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#include "accommon.h"
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#include "acnamesp.h"
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#include "amlcode.h"
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME("utdecode")
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/*
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* Properties of the ACPI Object Types, both internal and external.
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* The table is indexed by values of acpi_object_type
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*/
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const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES] = {
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ACPI_NS_NORMAL, /* 00 Any */
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ACPI_NS_NORMAL, /* 01 Number */
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ACPI_NS_NORMAL, /* 02 String */
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ACPI_NS_NORMAL, /* 03 Buffer */
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ACPI_NS_NORMAL, /* 04 Package */
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ACPI_NS_NORMAL, /* 05 field_unit */
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ACPI_NS_NEWSCOPE, /* 06 Device */
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ACPI_NS_NORMAL, /* 07 Event */
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ACPI_NS_NEWSCOPE, /* 08 Method */
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ACPI_NS_NORMAL, /* 09 Mutex */
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ACPI_NS_NORMAL, /* 10 Region */
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ACPI_NS_NEWSCOPE, /* 11 Power */
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ACPI_NS_NEWSCOPE, /* 12 Processor */
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ACPI_NS_NEWSCOPE, /* 13 Thermal */
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ACPI_NS_NORMAL, /* 14 buffer_field */
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ACPI_NS_NORMAL, /* 15 ddb_handle */
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ACPI_NS_NORMAL, /* 16 Debug Object */
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ACPI_NS_NORMAL, /* 17 def_field */
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ACPI_NS_NORMAL, /* 18 bank_field */
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ACPI_NS_NORMAL, /* 19 index_field */
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ACPI_NS_NORMAL, /* 20 Reference */
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ACPI_NS_NORMAL, /* 21 Alias */
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ACPI_NS_NORMAL, /* 22 method_alias */
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ACPI_NS_NORMAL, /* 23 Notify */
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ACPI_NS_NORMAL, /* 24 Address Handler */
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ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
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ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
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ACPI_NS_NEWSCOPE, /* 27 Scope */
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ACPI_NS_NORMAL, /* 28 Extra */
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ACPI_NS_NORMAL, /* 29 Data */
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ACPI_NS_NORMAL /* 30 Invalid */
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};
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_region_name
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*
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* PARAMETERS: Space ID - ID for the region
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*
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* RETURN: Decoded region space_id name
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*
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* DESCRIPTION: Translate a Space ID into a name string (Debug only)
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*
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******************************************************************************/
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/* Region type decoding */
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const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
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"SystemMemory", /* 0x00 */
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"SystemIO", /* 0x01 */
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"PCI_Config", /* 0x02 */
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"EmbeddedControl", /* 0x03 */
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"SMBus", /* 0x04 */
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"SystemCMOS", /* 0x05 */
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"PCIBARTarget", /* 0x06 */
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"IPMI", /* 0x07 */
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"GeneralPurposeIo", /* 0x08 */
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"GenericSerialBus", /* 0x09 */
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"PCC" /* 0x0A */
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};
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const char *acpi_ut_get_region_name(u8 space_id)
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{
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if (space_id >= ACPI_USER_REGION_BEGIN) {
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return ("UserDefinedRegion");
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} else if (space_id == ACPI_ADR_SPACE_DATA_TABLE) {
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return ("DataTable");
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} else if (space_id == ACPI_ADR_SPACE_FIXED_HARDWARE) {
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return ("FunctionalFixedHW");
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} else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
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return ("InvalidSpaceId");
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}
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return (acpi_gbl_region_types[space_id]);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_event_name
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*
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* PARAMETERS: event_id - Fixed event ID
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*
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* RETURN: Decoded event ID name
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*
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* DESCRIPTION: Translate a Event ID into a name string (Debug only)
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*
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******************************************************************************/
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/* Event type decoding */
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static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
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"PM_Timer",
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"GlobalLock",
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"PowerButton",
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"SleepButton",
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"RealTimeClock",
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};
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const char *acpi_ut_get_event_name(u32 event_id)
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{
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if (event_id > ACPI_EVENT_MAX) {
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return ("InvalidEventID");
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}
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return (acpi_gbl_event_types[event_id]);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_type_name
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*
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* PARAMETERS: type - An ACPI object type
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*
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* RETURN: Decoded ACPI object type name
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*
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* DESCRIPTION: Translate a Type ID into a name string (Debug only)
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*
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******************************************************************************/
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/*
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* Elements of acpi_gbl_ns_type_names below must match
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* one-to-one with values of acpi_object_type
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*
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* The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
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* when stored in a table it really means that we have thus far seen no
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* evidence to indicate what type is actually going to be stored for this
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& entry.
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*/
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static const char acpi_gbl_bad_type[] = "UNDEFINED";
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/* Printable names of the ACPI object types */
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static const char *acpi_gbl_ns_type_names[] = {
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/* 00 */ "Untyped",
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/* 01 */ "Integer",
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/* 02 */ "String",
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/* 03 */ "Buffer",
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/* 04 */ "Package",
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/* 05 */ "FieldUnit",
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/* 06 */ "Device",
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/* 07 */ "Event",
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/* 08 */ "Method",
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/* 09 */ "Mutex",
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/* 10 */ "Region",
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/* 11 */ "Power",
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/* 12 */ "Processor",
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/* 13 */ "Thermal",
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/* 14 */ "BufferField",
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/* 15 */ "DdbHandle",
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/* 16 */ "DebugObject",
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/* 17 */ "RegionField",
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/* 18 */ "BankField",
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/* 19 */ "IndexField",
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/* 20 */ "Reference",
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/* 21 */ "Alias",
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/* 22 */ "MethodAlias",
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/* 23 */ "Notify",
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/* 24 */ "AddrHandler",
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/* 25 */ "ResourceDesc",
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/* 26 */ "ResourceFld",
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/* 27 */ "Scope",
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/* 28 */ "Extra",
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/* 29 */ "Data",
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/* 30 */ "Invalid"
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};
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const char *acpi_ut_get_type_name(acpi_object_type type)
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{
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if (type > ACPI_TYPE_INVALID) {
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return (acpi_gbl_bad_type);
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}
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return (acpi_gbl_ns_type_names[type]);
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}
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const char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
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{
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ACPI_FUNCTION_TRACE(ut_get_object_type_name);
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if (!obj_desc) {
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ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n"));
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return_STR("[NULL Object Descriptor]");
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}
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/* These descriptor types share a common area */
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if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) &&
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(ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_NAMED)) {
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ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
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"Invalid object descriptor type: 0x%2.2X [%s] (%p)\n",
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ACPI_GET_DESCRIPTOR_TYPE(obj_desc),
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acpi_ut_get_descriptor_name(obj_desc),
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obj_desc));
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return_STR("Invalid object");
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}
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return_STR(acpi_ut_get_type_name(obj_desc->common.type));
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_node_name
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*
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* PARAMETERS: object - A namespace node
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*
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* RETURN: ASCII name of the node
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*
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* DESCRIPTION: Validate the node and return the node's ACPI name.
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*
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******************************************************************************/
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const char *acpi_ut_get_node_name(void *object)
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{
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struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
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/* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
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if (!object) {
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return ("NULL");
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}
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/* Check for Root node */
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if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
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return ("\"\\\" ");
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}
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/* Descriptor must be a namespace node */
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if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
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return ("####");
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}
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/*
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* Ensure name is valid. The name was validated/repaired when the node
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* was created, but make sure it has not been corrupted.
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*/
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acpi_ut_repair_name(node->name.ascii);
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/* Return the name */
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return (node->name.ascii);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_descriptor_name
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*
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* PARAMETERS: object - An ACPI object
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*
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* RETURN: Decoded name of the descriptor type
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*
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* DESCRIPTION: Validate object and return the descriptor type
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*
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******************************************************************************/
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/* Printable names of object descriptor types */
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static const char *acpi_gbl_desc_type_names[] = {
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/* 00 */ "Not a Descriptor",
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/* 01 */ "Cached",
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/* 02 */ "State-Generic",
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/* 03 */ "State-Update",
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/* 04 */ "State-Package",
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/* 05 */ "State-Control",
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/* 06 */ "State-RootParseScope",
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/* 07 */ "State-ParseScope",
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/* 08 */ "State-WalkScope",
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/* 09 */ "State-Result",
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/* 10 */ "State-Notify",
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/* 11 */ "State-Thread",
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/* 12 */ "Walk",
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/* 13 */ "Parser",
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/* 14 */ "Operand",
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/* 15 */ "Node"
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};
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const char *acpi_ut_get_descriptor_name(void *object)
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{
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if (!object) {
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return ("NULL OBJECT");
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}
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if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
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return ("Not a Descriptor");
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}
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return (acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE(object)]);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_reference_name
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*
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* PARAMETERS: object - An ACPI reference object
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*
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* RETURN: Decoded name of the type of reference
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*
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* DESCRIPTION: Decode a reference object sub-type to a string.
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*
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******************************************************************************/
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/* Printable names of reference object sub-types */
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static const char *acpi_gbl_ref_class_names[] = {
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/* 00 */ "Local",
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/* 01 */ "Argument",
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/* 02 */ "RefOf",
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/* 03 */ "Index",
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/* 04 */ "DdbHandle",
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/* 05 */ "Named Object",
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/* 06 */ "Debug"
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};
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const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
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{
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if (!object) {
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return ("NULL Object");
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}
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if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
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return ("Not an Operand object");
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}
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if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE) {
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return ("Not a Reference object");
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}
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if (object->reference.class > ACPI_REFCLASS_MAX) {
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return ("Unknown Reference class");
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}
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return (acpi_gbl_ref_class_names[object->reference.class]);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_mutex_name
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*
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* PARAMETERS: mutex_id - The predefined ID for this mutex.
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*
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* RETURN: Decoded name of the internal mutex
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*
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* DESCRIPTION: Translate a mutex ID into a name string (Debug only)
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*
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******************************************************************************/
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/* Names for internal mutex objects, used for debug output */
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static const char *acpi_gbl_mutex_names[ACPI_NUM_MUTEX] = {
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"ACPI_MTX_Interpreter",
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"ACPI_MTX_Namespace",
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"ACPI_MTX_Tables",
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"ACPI_MTX_Events",
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"ACPI_MTX_Caches",
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"ACPI_MTX_Memory",
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};
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const char *acpi_ut_get_mutex_name(u32 mutex_id)
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{
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if (mutex_id > ACPI_MAX_MUTEX) {
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return ("Invalid Mutex ID");
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}
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return (acpi_gbl_mutex_names[mutex_id]);
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}
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#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
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/*
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* Strings and procedures used for debug only
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*/
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_notify_name
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*
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* PARAMETERS: notify_value - Value from the Notify() request
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*
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* RETURN: Decoded name for the notify value
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*
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* DESCRIPTION: Translate a Notify Value to a notify namestring.
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*
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******************************************************************************/
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/* Names for Notify() values, used for debug output */
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static const char *acpi_gbl_generic_notify[ACPI_GENERIC_NOTIFY_MAX + 1] = {
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/* 00 */ "Bus Check",
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/* 01 */ "Device Check",
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/* 02 */ "Device Wake",
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/* 03 */ "Eject Request",
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/* 04 */ "Device Check Light",
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/* 05 */ "Frequency Mismatch",
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/* 06 */ "Bus Mode Mismatch",
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/* 07 */ "Power Fault",
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/* 08 */ "Capabilities Check",
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/* 09 */ "Device PLD Check",
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/* 0A */ "Reserved",
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/* 0B */ "System Locality Update",
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/* 0C */ "Reserved (was previously Shutdown Request)",
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/* Reserved in ACPI 6.0 */
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/* 0D */ "System Resource Affinity Update",
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/* 0E */ "Heterogeneous Memory Attributes Update"
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/* ACPI 6.2 */
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};
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static const char *acpi_gbl_device_notify[5] = {
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/* 80 */ "Status Change",
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/* 81 */ "Information Change",
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/* 82 */ "Device-Specific Change",
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/* 83 */ "Device-Specific Change",
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/* 84 */ "Reserved"
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};
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static const char *acpi_gbl_processor_notify[5] = {
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/* 80 */ "Performance Capability Change",
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/* 81 */ "C-State Change",
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/* 82 */ "Throttling Capability Change",
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/* 83 */ "Guaranteed Change",
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/* 84 */ "Minimum Excursion"
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};
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static const char *acpi_gbl_thermal_notify[5] = {
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/* 80 */ "Thermal Status Change",
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/* 81 */ "Thermal Trip Point Change",
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/* 82 */ "Thermal Device List Change",
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/* 83 */ "Thermal Relationship Change",
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/* 84 */ "Reserved"
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};
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const char *acpi_ut_get_notify_name(u32 notify_value, acpi_object_type type)
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{
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/* 00 - 0D are "common to all object types" (from ACPI Spec) */
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if (notify_value <= ACPI_GENERIC_NOTIFY_MAX) {
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return (acpi_gbl_generic_notify[notify_value]);
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}
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/* 0E - 7F are reserved */
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if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
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return ("Reserved");
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}
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/* 80 - 84 are per-object-type */
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if (notify_value <= ACPI_SPECIFIC_NOTIFY_MAX) {
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switch (type) {
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case ACPI_TYPE_ANY:
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case ACPI_TYPE_DEVICE:
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return (acpi_gbl_device_notify[notify_value - 0x80]);
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case ACPI_TYPE_PROCESSOR:
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return (acpi_gbl_processor_notify[notify_value - 0x80]);
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case ACPI_TYPE_THERMAL:
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return (acpi_gbl_thermal_notify[notify_value - 0x80]);
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default:
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return ("Target object type does not support notifies");
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}
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}
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/* 84 - BF are device-specific */
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if (notify_value <= ACPI_MAX_DEVICE_SPECIFIC_NOTIFY) {
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return ("Device-Specific");
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}
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/* C0 and above are hardware-specific */
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return ("Hardware-Specific");
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_get_argument_type_name
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*
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* PARAMETERS: arg_type - an ARGP_* parser argument type
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*
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* RETURN: Decoded ARGP_* type
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*
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* DESCRIPTION: Decode an ARGP_* parser type, as defined in the amlcode.h file,
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* and used in the acopcode.h file. For example, ARGP_TERMARG.
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* Used for debug only.
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*
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******************************************************************************/
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static const char *acpi_gbl_argument_type[20] = {
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/* 00 */ "Unknown ARGP",
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/* 01 */ "ByteData",
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/* 02 */ "ByteList",
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/* 03 */ "CharList",
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/* 04 */ "DataObject",
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/* 05 */ "DataObjectList",
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/* 06 */ "DWordData",
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/* 07 */ "FieldList",
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/* 08 */ "Name",
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/* 09 */ "NameString",
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/* 0A */ "ObjectList",
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/* 0B */ "PackageLength",
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/* 0C */ "SuperName",
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/* 0D */ "Target",
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/* 0E */ "TermArg",
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/* 0F */ "TermList",
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/* 10 */ "WordData",
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/* 11 */ "QWordData",
|
|
/* 12 */ "SimpleName",
|
|
/* 13 */ "NameOrRef"
|
|
};
|
|
|
|
const char *acpi_ut_get_argument_type_name(u32 arg_type)
|
|
{
|
|
|
|
if (arg_type > ARGP_MAX) {
|
|
return ("Unknown ARGP");
|
|
}
|
|
|
|
return (acpi_gbl_argument_type[arg_type]);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_valid_object_type
|
|
*
|
|
* PARAMETERS: type - Object type to be validated
|
|
*
|
|
* RETURN: TRUE if valid object type, FALSE otherwise
|
|
*
|
|
* DESCRIPTION: Validate an object type
|
|
*
|
|
******************************************************************************/
|
|
|
|
u8 acpi_ut_valid_object_type(acpi_object_type type)
|
|
{
|
|
|
|
if (type > ACPI_TYPE_LOCAL_MAX) {
|
|
|
|
/* Note: Assumes all TYPEs are contiguous (external/local) */
|
|
|
|
return (FALSE);
|
|
}
|
|
|
|
return (TRUE);
|
|
}
|