![Bob Moore](/assets/img/avatar_default.png)
ACPICA commit c04d310039d3e0ed1cb62876fe7e596fbc75ab01 ACPICA commit a65c1df7e6b4bad8e37df822018c40c6c446add9 The key feature of this utility is that the original comments within the input ASL files are preserved during the conversion process, and included within the converted ASL+ file -- thus creating a transparent conversion of existing ASL files to ASL+ (ASL 2.0) This patch is an automatic generation of the ASL converter commit, Linux kernel isn't affected by the functionality provided in this commit, but requires the linuxized changes to support future ACPICA release automation. Link: https://github.com/acpica/acpica/commit/c04d3100 Link: https://github.com/acpica/acpica/commit/a65c1df7 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
247 lines
7 KiB
C
247 lines
7 KiB
C
/******************************************************************************
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*
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* Module Name: psutils - Parser miscellaneous utilities (Parser only)
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2017, 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 "acparser.h"
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#include "amlcode.h"
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#include "acconvert.h"
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#define _COMPONENT ACPI_PARSER
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ACPI_MODULE_NAME("psutils")
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/*******************************************************************************
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*
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* FUNCTION: acpi_ps_create_scope_op
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*
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* PARAMETERS: None
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*
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* RETURN: A new Scope object, null on failure
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*
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* DESCRIPTION: Create a Scope and associated namepath op with the root name
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*
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******************************************************************************/
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union acpi_parse_object *acpi_ps_create_scope_op(u8 *aml)
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{
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union acpi_parse_object *scope_op;
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scope_op = acpi_ps_alloc_op(AML_SCOPE_OP, aml);
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if (!scope_op) {
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return (NULL);
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}
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scope_op->named.name = ACPI_ROOT_NAME;
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return (scope_op);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ps_init_op
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*
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* PARAMETERS: op - A newly allocated Op object
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* opcode - Opcode to store in the Op
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*
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* RETURN: None
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*
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* DESCRIPTION: Initialize a parse (Op) object
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*
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******************************************************************************/
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void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode)
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{
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ACPI_FUNCTION_ENTRY();
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op->common.descriptor_type = ACPI_DESC_TYPE_PARSER;
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op->common.aml_opcode = opcode;
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ACPI_DISASM_ONLY_MEMBERS(strncpy(op->common.aml_op_name,
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(acpi_ps_get_opcode_info(opcode))->
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name, sizeof(op->common.aml_op_name)));
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ps_alloc_op
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*
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* PARAMETERS: opcode - Opcode that will be stored in the new Op
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* aml - Address of the opcode
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*
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* RETURN: Pointer to the new Op, null on failure
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*
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* DESCRIPTION: Allocate an acpi_op, choose op type (and thus size) based on
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* opcode. A cache of opcodes is available for the pure
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* GENERIC_OP, since this is by far the most commonly used.
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*
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******************************************************************************/
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union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml)
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{
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union acpi_parse_object *op;
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const struct acpi_opcode_info *op_info;
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u8 flags = ACPI_PARSEOP_GENERIC;
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ACPI_FUNCTION_ENTRY();
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op_info = acpi_ps_get_opcode_info(opcode);
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/* Determine type of parse_op required */
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if (op_info->flags & AML_DEFER) {
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flags = ACPI_PARSEOP_DEFERRED;
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} else if (op_info->flags & AML_NAMED) {
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flags = ACPI_PARSEOP_NAMED_OBJECT;
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} else if (opcode == AML_INT_BYTELIST_OP) {
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flags = ACPI_PARSEOP_BYTELIST;
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}
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/* Allocate the minimum required size object */
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if (flags == ACPI_PARSEOP_GENERIC) {
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/* The generic op (default) is by far the most common (16 to 1) */
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op = acpi_os_acquire_object(acpi_gbl_ps_node_cache);
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} else {
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/* Extended parseop */
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op = acpi_os_acquire_object(acpi_gbl_ps_node_ext_cache);
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}
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/* Initialize the Op */
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if (op) {
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acpi_ps_init_op(op, opcode);
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op->common.aml = aml;
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op->common.flags = flags;
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ASL_CV_CLEAR_OP_COMMENTS(op);
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if (opcode == AML_SCOPE_OP) {
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acpi_gbl_current_scope = op;
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}
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}
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if (gbl_capture_comments) {
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ASL_CV_TRANSFER_COMMENTS(op);
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}
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return (op);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ps_free_op
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*
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* PARAMETERS: op - Op to be freed
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*
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* RETURN: None.
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*
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* DESCRIPTION: Free an Op object. Either put it on the GENERIC_OP cache list
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* or actually free it.
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*
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******************************************************************************/
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void acpi_ps_free_op(union acpi_parse_object *op)
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{
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ACPI_FUNCTION_NAME(ps_free_op);
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ASL_CV_CLEAR_OP_COMMENTS(op);
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if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
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ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
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"Free retval op: %p\n", op));
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}
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if (op->common.flags & ACPI_PARSEOP_GENERIC) {
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(void)acpi_os_release_object(acpi_gbl_ps_node_cache, op);
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} else {
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(void)acpi_os_release_object(acpi_gbl_ps_node_ext_cache, op);
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: Utility functions
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*
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* DESCRIPTION: Low level character and object functions
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*
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******************************************************************************/
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/*
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* Is "c" a namestring lead character?
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*/
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u8 acpi_ps_is_leading_char(u32 c)
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{
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return ((u8) (c == '_' || (c >= 'A' && c <= 'Z')));
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}
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/*
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* Get op's name (4-byte name segment) or 0 if unnamed
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*/
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u32 acpi_ps_get_name(union acpi_parse_object * op)
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{
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/* The "generic" object has no name associated with it */
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if (op->common.flags & ACPI_PARSEOP_GENERIC) {
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return (0);
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}
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/* Only the "Extended" parse objects have a name */
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return (op->named.name);
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}
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/*
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* Set op's name
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*/
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void acpi_ps_set_name(union acpi_parse_object *op, u32 name)
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{
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/* The "generic" object has no name associated with it */
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if (op->common.flags & ACPI_PARSEOP_GENERIC) {
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return;
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}
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op->named.name = name;
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}
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