mirror of https://gitee.com/openkylin/linux.git
309 lines
7.6 KiB
C
309 lines
7.6 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: exdebug - Support for stores to the AML Debug Object
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*
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* Copyright (C) 2000 - 2020, 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 "acinterp.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME("exdebug")
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#ifndef ACPI_NO_ERROR_MESSAGES
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_do_debug_object
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*
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* PARAMETERS: source_desc - Object to be output to "Debug Object"
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* level - Indentation level (used for packages)
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* index - Current package element, zero if not pkg
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*
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* RETURN: None
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*
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* DESCRIPTION: Handles stores to the AML Debug Object. For example:
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* Store(INT1, Debug)
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*
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* This function is not compiled if ACPI_NO_ERROR_MESSAGES is set.
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*
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* This function is only enabled if acpi_gbl_enable_aml_debug_object is set, or
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* if ACPI_LV_DEBUG_OBJECT is set in the acpi_dbg_level. Thus, in the normal
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* operational case, stores to the debug object are ignored but can be easily
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* enabled if necessary.
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*
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******************************************************************************/
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void
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acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
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u32 level, u32 index)
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{
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u32 i;
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u32 timer;
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union acpi_operand_object *object_desc;
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u32 value;
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ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
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/* Output must be enabled via the debug_object global or the dbg_level */
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if (!acpi_gbl_enable_aml_debug_object &&
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!(acpi_dbg_level & ACPI_LV_DEBUG_OBJECT)) {
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return_VOID;
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}
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/* Newline -- don't emit the line header */
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if (source_desc &&
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(ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) &&
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(source_desc->common.type == ACPI_TYPE_STRING)) {
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if ((source_desc->string.length == 1) &&
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(*source_desc->string.pointer == '\n')) {
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acpi_os_printf("\n");
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return_VOID;
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}
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}
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/*
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* Print line header as long as we are not in the middle of an
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* object display
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*/
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if (!((level > 0) && index == 0)) {
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if (acpi_gbl_display_debug_timer) {
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/*
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* We will emit the current timer value (in microseconds) with each
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* debug output. Only need the lower 26 bits. This allows for 67
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* million microseconds or 67 seconds before rollover.
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*
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* Convert 100 nanosecond units to microseconds
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*/
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timer = ((u32)acpi_os_get_timer() / 10);
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timer &= 0x03FFFFFF;
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acpi_os_printf("ACPI Debug: T=0x%8.8X %*s", timer,
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level, " ");
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} else {
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acpi_os_printf("ACPI Debug: %*s", level, " ");
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}
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}
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/* Display the index for package output only */
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if (index > 0) {
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acpi_os_printf("(%.2u) ", index - 1);
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}
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if (!source_desc) {
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acpi_os_printf("[Null Object]\n");
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return_VOID;
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}
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if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) {
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/* No object type prefix needed for integers and strings */
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if ((source_desc->common.type != ACPI_TYPE_INTEGER) &&
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(source_desc->common.type != ACPI_TYPE_STRING)) {
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acpi_os_printf("%s ",
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acpi_ut_get_object_type_name
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(source_desc));
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}
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if (!acpi_ut_valid_internal_object(source_desc)) {
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acpi_os_printf("%p, Invalid Internal Object!\n",
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source_desc);
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return_VOID;
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}
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} else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) ==
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ACPI_DESC_TYPE_NAMED) {
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acpi_os_printf("%s (Node %p)\n",
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acpi_ut_get_type_name(((struct
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acpi_namespace_node *)
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source_desc)->type),
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source_desc);
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return_VOID;
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} else {
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return_VOID;
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}
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/* source_desc is of type ACPI_DESC_TYPE_OPERAND */
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switch (source_desc->common.type) {
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case ACPI_TYPE_INTEGER:
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/* Output correct integer width */
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if (acpi_gbl_integer_byte_width == 4) {
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acpi_os_printf("0x%8.8X\n",
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(u32)source_desc->integer.value);
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} else {
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acpi_os_printf("0x%8.8X%8.8X\n",
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ACPI_FORMAT_UINT64(source_desc->integer.
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value));
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}
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break;
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case ACPI_TYPE_BUFFER:
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acpi_os_printf("[0x%.2X]\n", (u32)source_desc->buffer.length);
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acpi_ut_dump_buffer(source_desc->buffer.pointer,
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(source_desc->buffer.length < 256) ?
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source_desc->buffer.length : 256,
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DB_BYTE_DISPLAY, 0);
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break;
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case ACPI_TYPE_STRING:
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acpi_os_printf("\"%s\"\n", source_desc->string.pointer);
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break;
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case ACPI_TYPE_PACKAGE:
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acpi_os_printf("(Contains 0x%.2X Elements):\n",
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source_desc->package.count);
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/* Output the entire contents of the package */
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for (i = 0; i < source_desc->package.count; i++) {
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acpi_ex_do_debug_object(source_desc->package.
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elements[i], level + 4, i + 1);
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}
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break;
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case ACPI_TYPE_LOCAL_REFERENCE:
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acpi_os_printf("[%s] ",
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acpi_ut_get_reference_name(source_desc));
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/* Decode the reference */
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switch (source_desc->reference.class) {
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case ACPI_REFCLASS_INDEX:
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acpi_os_printf("0x%X\n", source_desc->reference.value);
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break;
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case ACPI_REFCLASS_TABLE:
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/* Case for ddb_handle */
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acpi_os_printf("Table Index 0x%X\n",
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source_desc->reference.value);
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return_VOID;
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default:
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break;
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}
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acpi_os_printf(" ");
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/* Check for valid node first, then valid object */
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if (source_desc->reference.node) {
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if (ACPI_GET_DESCRIPTOR_TYPE
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(source_desc->reference.node) !=
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ACPI_DESC_TYPE_NAMED) {
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acpi_os_printf
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(" %p - Not a valid namespace node\n",
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source_desc->reference.node);
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} else {
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acpi_os_printf("Node %p [%4.4s] ",
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source_desc->reference.node,
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(source_desc->reference.node)->
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name.ascii);
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switch ((source_desc->reference.node)->type) {
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/* These types have no attached object */
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case ACPI_TYPE_DEVICE:
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acpi_os_printf("Device\n");
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break;
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case ACPI_TYPE_THERMAL:
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acpi_os_printf("Thermal Zone\n");
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break;
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default:
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acpi_ex_do_debug_object((source_desc->
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reference.
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node)->object,
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level + 4, 0);
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break;
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}
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}
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} else if (source_desc->reference.object) {
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if (ACPI_GET_DESCRIPTOR_TYPE
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(source_desc->reference.object) ==
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ACPI_DESC_TYPE_NAMED) {
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/* Reference object is a namespace node */
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acpi_ex_do_debug_object(ACPI_CAST_PTR
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(union
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acpi_operand_object,
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source_desc->reference.
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object), level + 4, 0);
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} else {
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object_desc = source_desc->reference.object;
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value = source_desc->reference.value;
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switch (object_desc->common.type) {
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case ACPI_TYPE_BUFFER:
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acpi_os_printf("Buffer[%u] = 0x%2.2X\n",
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value,
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*source_desc->reference.
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index_pointer);
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break;
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case ACPI_TYPE_STRING:
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acpi_os_printf
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("String[%u] = \"%c\" (0x%2.2X)\n",
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value,
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*source_desc->reference.
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index_pointer,
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*source_desc->reference.
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index_pointer);
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break;
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case ACPI_TYPE_PACKAGE:
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acpi_os_printf("Package[%u] = ", value);
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if (!(*source_desc->reference.where)) {
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acpi_os_printf
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("[Uninitialized Package Element]\n");
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} else {
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acpi_ex_do_debug_object
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(*source_desc->reference.
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where, level + 4, 0);
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}
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break;
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default:
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acpi_os_printf
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("Unknown Reference object type %X\n",
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object_desc->common.type);
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break;
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}
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}
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}
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break;
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default:
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acpi_os_printf("(Descriptor %p)\n", source_desc);
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break;
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}
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ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n"));
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return_VOID;
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}
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#endif
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