Release 4.11 drivers/acpi/acpica/dbutils.c
/*******************************************************************************
*
* Module Name: dbutils - AML debugger utilities
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2017, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
#include "acdebug.h"
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME("dbutils")
/* Local prototypes */
#ifdef ACPI_OBSOLETE_FUNCTIONS
acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root);
void acpi_db_dump_buffer(u32 address);
#endif
/*******************************************************************************
*
* FUNCTION: acpi_db_match_argument
*
* PARAMETERS: user_argument - User command line
* arguments - Array of commands to match against
*
* RETURN: Index into command array or ACPI_TYPE_NOT_FOUND if not found
*
* DESCRIPTION: Search command array for a command match
*
******************************************************************************/
acpi_object_type
acpi_db_match_argument(char *user_argument,
struct acpi_db_argument_info *arguments)
{
u32 i;
if (!user_argument || user_argument[0] == 0) {
return (ACPI_TYPE_NOT_FOUND);
}
for (i = 0; arguments[i].name; i++) {
if (strstr(ACPI_CAST_PTR(char, arguments[i].name),
ACPI_CAST_PTR(char,
user_argument)) == arguments[i].name) {
return (i);
}
}
/* Argument not recognized */
return (ACPI_TYPE_NOT_FOUND);
}
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/*******************************************************************************
*
* FUNCTION: acpi_db_set_output_destination
*
* PARAMETERS: output_flags - Current flags word
*
* RETURN: None
*
* DESCRIPTION: Set the current destination for debugger output. Also sets
* the debug output level accordingly.
*
******************************************************************************/
void acpi_db_set_output_destination(u32 output_flags)
{
acpi_gbl_db_output_flags = (u8)output_flags;
if ((output_flags & ACPI_DB_REDIRECTABLE_OUTPUT) &&
acpi_gbl_db_output_to_file) {
acpi_dbg_level = acpi_gbl_db_debug_level;
} else {
acpi_dbg_level = acpi_gbl_db_console_debug_level;
}
}
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/*******************************************************************************
*
* FUNCTION: acpi_db_dump_external_object
*
* PARAMETERS: obj_desc - External ACPI object to dump
* level - Nesting level.
*
* RETURN: None
*
* DESCRIPTION: Dump the contents of an ACPI external object
*
******************************************************************************/
void acpi_db_dump_external_object(union acpi_object *obj_desc, u32 level)
{
u32 i;
if (!obj_desc) {
acpi_os_printf("[Null Object]\n");
return;
}
for (i = 0; i < level; i++) {
acpi_os_printf(" ");
}
switch (obj_desc->type) {
case ACPI_TYPE_ANY:
acpi_os_printf("[Null Object] (Type=0)\n");
break;
case ACPI_TYPE_INTEGER:
acpi_os_printf("[Integer] = %8.8X%8.8X\n",
ACPI_FORMAT_UINT64(obj_desc->integer.value));
break;
case ACPI_TYPE_STRING:
acpi_os_printf("[String] Length %.2X = ",
obj_desc->string.length);
acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX);
acpi_os_printf("\n");
break;
case ACPI_TYPE_BUFFER:
acpi_os_printf("[Buffer] Length %.2X = ",
obj_desc->buffer.length);
if (obj_desc->buffer.length) {
if (obj_desc->buffer.length > 16) {
acpi_os_printf("\n");
}
acpi_ut_debug_dump_buffer(ACPI_CAST_PTR
(u8,
obj_desc->buffer.pointer),
obj_desc->buffer.length,
DB_BYTE_DISPLAY, _COMPONENT);
} else {
acpi_os_printf("\n");
}
break;
case ACPI_TYPE_PACKAGE:
acpi_os_printf("[Package] Contains %u Elements:\n",
obj_desc->package.count);
for (i = 0; i < obj_desc->package.count; i++) {
acpi_db_dump_external_object(&obj_desc->package.
elements[i], level + 1);
}
break;
case ACPI_TYPE_LOCAL_REFERENCE:
acpi_os_printf("[Object Reference] = ");
acpi_db_display_internal_object(obj_desc->reference.handle,
NULL);
break;
case ACPI_TYPE_PROCESSOR:
acpi_os_printf("[Processor]\n");
break;
case ACPI_TYPE_POWER:
acpi_os_printf("[Power Resource]\n");
break;
default:
acpi_os_printf("[Unknown Type] %X\n", obj_desc->type);
break;
}
}
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/*******************************************************************************
*
* FUNCTION: acpi_db_prep_namestring
*
* PARAMETERS: name - String to prepare
*
* RETURN: None
*
* DESCRIPTION: Translate all forward slashes and dots to backslashes.
*
******************************************************************************/
void acpi_db_prep_namestring(char *name)
{
if (!name) {
return;
}
acpi_ut_strupr(name);
/* Convert a leading forward slash to a backslash */
if (*name == '/') {
*name = '\\';
}
/* Ignore a leading backslash, this is the root prefix */
if (ACPI_IS_ROOT_PREFIX(*name)) {
name++;
}
/* Convert all slash path separators to dots */
while (*name) {
if ((*name == '/') || (*name == '\\')) {
*name = '.';
}
name++;
}
}
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/*******************************************************************************
*
* FUNCTION: acpi_db_local_ns_lookup
*
* PARAMETERS: name - Name to lookup
*
* RETURN: Pointer to a namespace node, null on failure
*
* DESCRIPTION: Lookup a name in the ACPI namespace
*
* Note: Currently begins search from the root. Could be enhanced to use
* the current prefix (scope) node as the search beginning point.
*
******************************************************************************/
struct acpi_namespace_node *acpi_db_local_ns_lookup(char *name)
{
char *internal_path;
acpi_status status;
struct acpi_namespace_node *node = NULL;
acpi_db_prep_namestring(name);
/* Build an internal namestring */
status = acpi_ns_internalize_name(name, &internal_path);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Invalid namestring: %s\n", name);
return (NULL);
}
/*
* Lookup the name.
* (Uses root node as the search starting point)
*/
status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY,
ACPI_IMODE_EXECUTE,
ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE,
NULL, &node);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could not locate name: %s, %s\n",
name, acpi_format_exception(status));
}
ACPI_FREE(internal_path);
return (node);
}
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/*******************************************************************************
*
* FUNCTION: acpi_db_uint32_to_hex_string
*
* PARAMETERS: value - The value to be converted to string
* buffer - Buffer for result (not less than 11 bytes)
*
* RETURN: None
*
* DESCRIPTION: Convert the unsigned 32-bit value to the hexadecimal image
*
* NOTE: It is the caller's responsibility to ensure that the length of buffer
* is sufficient.
*
******************************************************************************/
void acpi_db_uint32_to_hex_string(u32 value, char *buffer)
{
int i;
if (value == 0) {
strcpy(buffer, "0");
return;
}
buffer[8] = '\0';
for (i = 7; i >= 0; i--) {
buffer[i] = acpi_gbl_upper_hex_digits[value & 0x0F];
value = value >> 4;
}
}
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#ifdef ACPI_OBSOLETE_FUNCTIONS
/*******************************************************************************
*
* FUNCTION: acpi_db_second_pass_parse
*
* PARAMETERS: root - Root of the parse tree
*
* RETURN: Status
*
* DESCRIPTION: Second pass parse of the ACPI tables. We need to wait until
* second pass to parse the control methods
*
******************************************************************************/
acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root)
{
union acpi_parse_object *op = root;
union acpi_parse_object *method;
union acpi_parse_object *search_op;
union acpi_parse_object *start_op;
acpi_status status = AE_OK;
u32 base_aml_offset;
struct acpi_walk_state *walk_state;
ACPI_FUNCTION_ENTRY();
acpi_os_printf("Pass two parse ....\n");
while (op) {
if (op->common.aml_opcode == AML_METHOD_OP) {
method = op;
/* Create a new walk state for the parse */
walk_state =
acpi_ds_create_walk_state(0, NULL, NULL, NULL);
if (!walk_state) {
return (AE_NO_MEMORY);
}
/* Init the Walk State */
walk_state->parser_state.aml =
walk_state->parser_state.aml_start =
method->named.data;
walk_state->parser_state.aml_end =
walk_state->parser_state.pkg_end =
method->named.data + method->named.length;
walk_state->parser_state.start_scope = op;
walk_state->descending_callback =
acpi_ds_load1_begin_op;
walk_state->ascending_callback = acpi_ds_load1_end_op;
/* Perform the AML parse */
status = acpi_ps_parse_aml(walk_state);
base_aml_offset =
(method->common.value.arg)->common.aml_offset + 1;
start_op = (method->common.value.arg)->common.next;
search_op = start_op;
while (search_op) {
search_op->common.aml_offset += base_aml_offset;
search_op =
acpi_ps_get_depth_next(start_op, search_op);
}
}
if (op->common.aml_opcode == AML_REGION_OP) {
/* TBD: [Investigate] this isn't quite the right thing to do! */
/*
*
* Method = (ACPI_DEFERRED_OP *) Op;
* Status = acpi_ps_parse_aml (Op, Method->Body, Method->body_length);
*/
}
if (ACPI_FAILURE(status)) {
break;
}
op = acpi_ps_get_depth_next(root, op);
}
return (status);
}
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/*******************************************************************************
*
* FUNCTION: acpi_db_dump_buffer
*
* PARAMETERS: address - Pointer to the buffer
*
* RETURN: None
*
* DESCRIPTION: Print a portion of a buffer
*
******************************************************************************/
void acpi_db_dump_buffer(u32 address)
{
acpi_os_printf("\nLocation %X:\n", address);
acpi_dbg_level |= ACPI_LV_TABLES;
acpi_ut_debug_dump_buffer(ACPI_TO_POINTER(address), 64, DB_BYTE_DISPLAY,
ACPI_UINT32_MAX);
}
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#endif
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