mirror of https://gitee.com/openkylin/linux.git
ACPICA: Split object conversion functions to a new file
New file, nsconvert.c, for return object conversion functions. Created in preparation for new conversion functions forthcoming. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore
Rafael J. Wysocki
parent
d5a36100f6
commit
76a6225bf0
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@ -83,6 +83,7 @@ acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
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acpi-y += \
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acpi-y += \
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nsaccess.o \
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nsaccess.o \
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nsalloc.o \
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nsalloc.o \
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nsconvert.o \
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nsdump.o \
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nsdump.o \
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nseval.o \
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nseval.o \
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nsinit.o \
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nsinit.o \
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@ -166,6 +166,21 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent);
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int acpi_ns_compare_names(char *name1, char *name2);
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int acpi_ns_compare_names(char *name1, char *name2);
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/*
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* nsconvert - Dynamic object conversion routines
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*/
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acpi_status
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acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object);
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acpi_status
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acpi_ns_convert_to_string(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object);
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acpi_status
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acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object);
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/*
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/*
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* nsdump - Namespace dump/print utilities
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* nsdump - Namespace dump/print utilities
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*/
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*/
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@ -0,0 +1,302 @@
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/******************************************************************************
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*
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* Module Name: nsconvert - Object conversions for objects returned by
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* predefined methods
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2013, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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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 "acinterp.h"
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#include "acpredef.h"
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#include "amlresrc.h"
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#define _COMPONENT ACPI_NAMESPACE
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ACPI_MODULE_NAME("nsconvert")
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_convert_to_integer
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*
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* PARAMETERS: original_object - Object to be converted
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* return_object - Where the new converted object is returned
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*
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* RETURN: Status. AE_OK if conversion was successful.
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*
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* DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
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*
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******************************************************************************/
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acpi_status
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acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object)
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{
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union acpi_operand_object *new_object;
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acpi_status status;
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u64 value = 0;
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u32 i;
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switch (original_object->common.type) {
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case ACPI_TYPE_STRING:
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/* String-to-Integer conversion */
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status = acpi_ut_strtoul64(original_object->string.pointer,
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ACPI_ANY_BASE, &value);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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break;
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case ACPI_TYPE_BUFFER:
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/* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
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if (original_object->buffer.length > 8) {
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return (AE_AML_OPERAND_TYPE);
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}
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/* Extract each buffer byte to create the integer */
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for (i = 0; i < original_object->buffer.length; i++) {
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value |=
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((u64)original_object->buffer.
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pointer[i] << (i * 8));
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}
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break;
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default:
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return (AE_AML_OPERAND_TYPE);
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}
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new_object = acpi_ut_create_integer_object(value);
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if (!new_object) {
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return (AE_NO_MEMORY);
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}
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*return_object = new_object;
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_convert_to_string
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*
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* PARAMETERS: original_object - Object to be converted
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* return_object - Where the new converted object is returned
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*
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* RETURN: Status. AE_OK if conversion was successful.
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*
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* DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
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*
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******************************************************************************/
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acpi_status
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acpi_ns_convert_to_string(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object)
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{
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union acpi_operand_object *new_object;
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acpi_size length;
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acpi_status status;
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switch (original_object->common.type) {
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case ACPI_TYPE_INTEGER:
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/*
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* Integer-to-String conversion. Commonly, convert
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* an integer of value 0 to a NULL string. The last element of
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* _BIF and _BIX packages occasionally need this fix.
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*/
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if (original_object->integer.value == 0) {
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/* Allocate a new NULL string object */
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new_object = acpi_ut_create_string_object(0);
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if (!new_object) {
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return (AE_NO_MEMORY);
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}
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} else {
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status =
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acpi_ex_convert_to_string(original_object,
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&new_object,
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ACPI_IMPLICIT_CONVERT_HEX);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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}
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break;
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case ACPI_TYPE_BUFFER:
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/*
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* Buffer-to-String conversion. Use a to_string
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* conversion, no transform performed on the buffer data. The best
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* example of this is the _BIF method, where the string data from
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* the battery is often (incorrectly) returned as buffer object(s).
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*/
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length = 0;
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while ((length < original_object->buffer.length) &&
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(original_object->buffer.pointer[length])) {
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length++;
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}
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/* Allocate a new string object */
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new_object = acpi_ut_create_string_object(length);
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if (!new_object) {
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return (AE_NO_MEMORY);
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}
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/*
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* Copy the raw buffer data with no transform. String is already NULL
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* terminated at Length+1.
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*/
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ACPI_MEMCPY(new_object->string.pointer,
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original_object->buffer.pointer, length);
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break;
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default:
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return (AE_AML_OPERAND_TYPE);
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}
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*return_object = new_object;
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_convert_to_buffer
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*
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* PARAMETERS: original_object - Object to be converted
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* return_object - Where the new converted object is returned
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*
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* RETURN: Status. AE_OK if conversion was successful.
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*
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* DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
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*
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******************************************************************************/
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acpi_status
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acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object)
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{
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union acpi_operand_object *new_object;
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acpi_status status;
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union acpi_operand_object **elements;
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u32 *dword_buffer;
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u32 count;
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u32 i;
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switch (original_object->common.type) {
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case ACPI_TYPE_INTEGER:
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/*
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* Integer-to-Buffer conversion.
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* Convert the Integer to a packed-byte buffer. _MAT and other
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* objects need this sometimes, if a read has been performed on a
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* Field object that is less than or equal to the global integer
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* size (32 or 64 bits).
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*/
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status =
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acpi_ex_convert_to_buffer(original_object, &new_object);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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break;
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case ACPI_TYPE_STRING:
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/* String-to-Buffer conversion. Simple data copy */
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new_object =
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acpi_ut_create_buffer_object(original_object->string.
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length);
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if (!new_object) {
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return (AE_NO_MEMORY);
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}
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ACPI_MEMCPY(new_object->buffer.pointer,
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original_object->string.pointer,
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original_object->string.length);
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break;
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case ACPI_TYPE_PACKAGE:
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/*
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* This case is often seen for predefined names that must return a
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* Buffer object with multiple DWORD integers within. For example,
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* _FDE and _GTM. The Package can be converted to a Buffer.
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*/
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/* All elements of the Package must be integers */
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elements = original_object->package.elements;
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count = original_object->package.count;
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for (i = 0; i < count; i++) {
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if ((!*elements) ||
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((*elements)->common.type != ACPI_TYPE_INTEGER)) {
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return (AE_AML_OPERAND_TYPE);
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}
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elements++;
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}
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/* Create the new buffer object to replace the Package */
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new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count));
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if (!new_object) {
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return (AE_NO_MEMORY);
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}
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/* Copy the package elements (integers) to the buffer as DWORDs */
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elements = original_object->package.elements;
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dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer);
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for (i = 0; i < count; i++) {
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*dword_buffer = (u32)(*elements)->integer.value;
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dword_buffer++;
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elements++;
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}
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break;
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default:
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return (AE_AML_OPERAND_TYPE);
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}
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*return_object = new_object;
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return (AE_OK);
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}
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@ -84,18 +84,6 @@ ACPI_MODULE_NAME("nsrepair")
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*
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*
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******************************************************************************/
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******************************************************************************/
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/* Local prototypes */
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/* Local prototypes */
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static acpi_status
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acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object);
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static acpi_status
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acpi_ns_convert_to_string(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object);
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static acpi_status
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acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object);
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static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct
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static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct
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acpi_namespace_node
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acpi_namespace_node
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*node,
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*node,
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@ -342,256 +330,6 @@ static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct
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return (NULL); /* Name was not found in the repair table */
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return (NULL); /* Name was not found in the repair table */
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_convert_to_integer
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*
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* PARAMETERS: original_object - Object to be converted
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* return_object - Where the new converted object is returned
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*
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* RETURN: Status. AE_OK if conversion was successful.
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*
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* DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
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*
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******************************************************************************/
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static acpi_status
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acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
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union acpi_operand_object **return_object)
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{
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union acpi_operand_object *new_object;
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acpi_status status;
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u64 value = 0;
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u32 i;
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switch (original_object->common.type) {
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case ACPI_TYPE_STRING:
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/* String-to-Integer conversion */
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status = acpi_ut_strtoul64(original_object->string.pointer,
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ACPI_ANY_BASE, &value);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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break;
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case ACPI_TYPE_BUFFER:
|
|
||||||
|
|
||||||
/* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
|
|
||||||
|
|
||||||
if (original_object->buffer.length > 8) {
|
|
||||||
return (AE_AML_OPERAND_TYPE);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Extract each buffer byte to create the integer */
|
|
||||||
|
|
||||||
for (i = 0; i < original_object->buffer.length; i++) {
|
|
||||||
value |=
|
|
||||||
((u64) original_object->buffer.
|
|
||||||
pointer[i] << (i * 8));
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
return (AE_AML_OPERAND_TYPE);
|
|
||||||
}
|
|
||||||
|
|
||||||
new_object = acpi_ut_create_integer_object(value);
|
|
||||||
if (!new_object) {
|
|
||||||
return (AE_NO_MEMORY);
|
|
||||||
}
|
|
||||||
|
|
||||||
*return_object = new_object;
|
|
||||||
return (AE_OK);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*******************************************************************************
|
|
||||||
*
|
|
||||||
* FUNCTION: acpi_ns_convert_to_string
|
|
||||||
*
|
|
||||||
* PARAMETERS: original_object - Object to be converted
|
|
||||||
* return_object - Where the new converted object is returned
|
|
||||||
*
|
|
||||||
* RETURN: Status. AE_OK if conversion was successful.
|
|
||||||
*
|
|
||||||
* DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
|
|
||||||
*
|
|
||||||
******************************************************************************/
|
|
||||||
|
|
||||||
static acpi_status
|
|
||||||
acpi_ns_convert_to_string(union acpi_operand_object *original_object,
|
|
||||||
union acpi_operand_object **return_object)
|
|
||||||
{
|
|
||||||
union acpi_operand_object *new_object;
|
|
||||||
acpi_size length;
|
|
||||||
acpi_status status;
|
|
||||||
|
|
||||||
switch (original_object->common.type) {
|
|
||||||
case ACPI_TYPE_INTEGER:
|
|
||||||
/*
|
|
||||||
* Integer-to-String conversion. Commonly, convert
|
|
||||||
* an integer of value 0 to a NULL string. The last element of
|
|
||||||
* _BIF and _BIX packages occasionally need this fix.
|
|
||||||
*/
|
|
||||||
if (original_object->integer.value == 0) {
|
|
||||||
|
|
||||||
/* Allocate a new NULL string object */
|
|
||||||
|
|
||||||
new_object = acpi_ut_create_string_object(0);
|
|
||||||
if (!new_object) {
|
|
||||||
return (AE_NO_MEMORY);
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
status =
|
|
||||||
acpi_ex_convert_to_string(original_object,
|
|
||||||
&new_object,
|
|
||||||
ACPI_IMPLICIT_CONVERT_HEX);
|
|
||||||
if (ACPI_FAILURE(status)) {
|
|
||||||
return (status);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case ACPI_TYPE_BUFFER:
|
|
||||||
/*
|
|
||||||
* Buffer-to-String conversion. Use a to_string
|
|
||||||
* conversion, no transform performed on the buffer data. The best
|
|
||||||
* example of this is the _BIF method, where the string data from
|
|
||||||
* the battery is often (incorrectly) returned as buffer object(s).
|
|
||||||
*/
|
|
||||||
length = 0;
|
|
||||||
while ((length < original_object->buffer.length) &&
|
|
||||||
(original_object->buffer.pointer[length])) {
|
|
||||||
length++;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Allocate a new string object */
|
|
||||||
|
|
||||||
new_object = acpi_ut_create_string_object(length);
|
|
||||||
if (!new_object) {
|
|
||||||
return (AE_NO_MEMORY);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Copy the raw buffer data with no transform. String is already NULL
|
|
||||||
* terminated at Length+1.
|
|
||||||
*/
|
|
||||||
ACPI_MEMCPY(new_object->string.pointer,
|
|
||||||
original_object->buffer.pointer, length);
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
return (AE_AML_OPERAND_TYPE);
|
|
||||||
}
|
|
||||||
|
|
||||||
*return_object = new_object;
|
|
||||||
return (AE_OK);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*******************************************************************************
|
|
||||||
*
|
|
||||||
* FUNCTION: acpi_ns_convert_to_buffer
|
|
||||||
*
|
|
||||||
* PARAMETERS: original_object - Object to be converted
|
|
||||||
* return_object - Where the new converted object is returned
|
|
||||||
*
|
|
||||||
* RETURN: Status. AE_OK if conversion was successful.
|
|
||||||
*
|
|
||||||
* DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
|
|
||||||
*
|
|
||||||
******************************************************************************/
|
|
||||||
|
|
||||||
static acpi_status
|
|
||||||
acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
|
|
||||||
union acpi_operand_object **return_object)
|
|
||||||
{
|
|
||||||
union acpi_operand_object *new_object;
|
|
||||||
acpi_status status;
|
|
||||||
union acpi_operand_object **elements;
|
|
||||||
u32 *dword_buffer;
|
|
||||||
u32 count;
|
|
||||||
u32 i;
|
|
||||||
|
|
||||||
switch (original_object->common.type) {
|
|
||||||
case ACPI_TYPE_INTEGER:
|
|
||||||
/*
|
|
||||||
* Integer-to-Buffer conversion.
|
|
||||||
* Convert the Integer to a packed-byte buffer. _MAT and other
|
|
||||||
* objects need this sometimes, if a read has been performed on a
|
|
||||||
* Field object that is less than or equal to the global integer
|
|
||||||
* size (32 or 64 bits).
|
|
||||||
*/
|
|
||||||
status =
|
|
||||||
acpi_ex_convert_to_buffer(original_object, &new_object);
|
|
||||||
if (ACPI_FAILURE(status)) {
|
|
||||||
return (status);
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case ACPI_TYPE_STRING:
|
|
||||||
|
|
||||||
/* String-to-Buffer conversion. Simple data copy */
|
|
||||||
|
|
||||||
new_object =
|
|
||||||
acpi_ut_create_buffer_object(original_object->string.
|
|
||||||
length);
|
|
||||||
if (!new_object) {
|
|
||||||
return (AE_NO_MEMORY);
|
|
||||||
}
|
|
||||||
|
|
||||||
ACPI_MEMCPY(new_object->buffer.pointer,
|
|
||||||
original_object->string.pointer,
|
|
||||||
original_object->string.length);
|
|
||||||
break;
|
|
||||||
|
|
||||||
case ACPI_TYPE_PACKAGE:
|
|
||||||
/*
|
|
||||||
* This case is often seen for predefined names that must return a
|
|
||||||
* Buffer object with multiple DWORD integers within. For example,
|
|
||||||
* _FDE and _GTM. The Package can be converted to a Buffer.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/* All elements of the Package must be integers */
|
|
||||||
|
|
||||||
elements = original_object->package.elements;
|
|
||||||
count = original_object->package.count;
|
|
||||||
|
|
||||||
for (i = 0; i < count; i++) {
|
|
||||||
if ((!*elements) ||
|
|
||||||
((*elements)->common.type != ACPI_TYPE_INTEGER)) {
|
|
||||||
return (AE_AML_OPERAND_TYPE);
|
|
||||||
}
|
|
||||||
elements++;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Create the new buffer object to replace the Package */
|
|
||||||
|
|
||||||
new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count));
|
|
||||||
if (!new_object) {
|
|
||||||
return (AE_NO_MEMORY);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Copy the package elements (integers) to the buffer as DWORDs */
|
|
||||||
|
|
||||||
elements = original_object->package.elements;
|
|
||||||
dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer);
|
|
||||||
|
|
||||||
for (i = 0; i < count; i++) {
|
|
||||||
*dword_buffer = (u32) (*elements)->integer.value;
|
|
||||||
dword_buffer++;
|
|
||||||
elements++;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
return (AE_AML_OPERAND_TYPE);
|
|
||||||
}
|
|
||||||
|
|
||||||
*return_object = new_object;
|
|
||||||
return (AE_OK);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*******************************************************************************
|
/*******************************************************************************
|
||||||
*
|
*
|
||||||
* FUNCTION: acpi_ns_repair_null_element
|
* FUNCTION: acpi_ns_repair_null_element
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue