forked from Minki/linux
3e8214e5c2
This is a cosmetic patch only. Comparison of the resulting binary showed only line number differences. This patch does not affect the generation of the Linux binary. This patch decreases 210 lines of 20121018 divergence.diff. The ACPICA source codes uses a totally different indentation style from the Linux to be compatible with other users (operating systems or BIOS). Indentation differences are critical to the release automation. There are two causes related to the "indentation" that are affecting the release automation: 1. The ACPICA -> Linux release process is: ACPICA source -- acpisrc - hierarchy - indent -> linuxized ACPICA source -- diff -> linuxized ACPICA patch (x) -- human intervention -> linuxized ACPICA patch (o) Where 'x' means "cannot be directly applied to the Linux" 'o' means "can be directly applied to the Linux" Different "indent" version or "indent" options used in the "indent" step will lead to different divergences. The version of "indent" used for the current release process is: GNU indent 2.2.11 The options of "indent" used for the current release process is: -npro -kr -i8 -ts8 -sob -l80 -ss -ncs 2. Manual indentation prettifying work in the Linux side will also harm the automatically generated linuxized ACPICA patches, making them impossible to apply directly. This patch fixes source code differences caused by the two causes so that the "human intervention" can be reduced in the future. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
339 lines
9.8 KiB
C
339 lines
9.8 KiB
C
/******************************************************************************
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*
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* Module Name: uteval - Object evaluation
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2012, 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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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME("uteval")
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_evaluate_object
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*
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* PARAMETERS: prefix_node - Starting node
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* path - Path to object from starting node
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* expected_return_types - Bitmap of allowed return types
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* return_desc - Where a return value is stored
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*
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* RETURN: Status
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*
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* DESCRIPTION: Evaluates a namespace object and verifies the type of the
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* return object. Common code that simplifies accessing objects
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* that have required return objects of fixed types.
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*
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* NOTE: Internal function, no parameter validation
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*
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******************************************************************************/
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acpi_status
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acpi_ut_evaluate_object(struct acpi_namespace_node * prefix_node,
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char *path,
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u32 expected_return_btypes,
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union acpi_operand_object **return_desc)
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{
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struct acpi_evaluate_info *info;
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acpi_status status;
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u32 return_btype;
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ACPI_FUNCTION_TRACE(ut_evaluate_object);
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/* Allocate the evaluation information block */
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info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
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if (!info) {
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return_ACPI_STATUS(AE_NO_MEMORY);
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}
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info->prefix_node = prefix_node;
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info->pathname = path;
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/* Evaluate the object/method */
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status = acpi_ns_evaluate(info);
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if (ACPI_FAILURE(status)) {
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if (status == AE_NOT_FOUND) {
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ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
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"[%4.4s.%s] was not found\n",
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acpi_ut_get_node_name(prefix_node),
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path));
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} else {
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ACPI_ERROR_METHOD("Method execution failed",
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prefix_node, path, status);
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}
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goto cleanup;
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}
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/* Did we get a return object? */
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if (!info->return_object) {
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if (expected_return_btypes) {
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ACPI_ERROR_METHOD("No object was returned from",
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prefix_node, path, AE_NOT_EXIST);
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status = AE_NOT_EXIST;
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}
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goto cleanup;
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}
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/* Map the return object type to the bitmapped type */
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switch ((info->return_object)->common.type) {
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case ACPI_TYPE_INTEGER:
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return_btype = ACPI_BTYPE_INTEGER;
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break;
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case ACPI_TYPE_BUFFER:
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return_btype = ACPI_BTYPE_BUFFER;
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break;
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case ACPI_TYPE_STRING:
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return_btype = ACPI_BTYPE_STRING;
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break;
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case ACPI_TYPE_PACKAGE:
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return_btype = ACPI_BTYPE_PACKAGE;
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break;
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default:
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return_btype = 0;
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break;
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}
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if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) {
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/*
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* We received a return object, but one was not expected. This can
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* happen frequently if the "implicit return" feature is enabled.
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* Just delete the return object and return AE_OK.
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*/
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acpi_ut_remove_reference(info->return_object);
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goto cleanup;
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}
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/* Is the return object one of the expected types? */
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if (!(expected_return_btypes & return_btype)) {
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ACPI_ERROR_METHOD("Return object type is incorrect",
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prefix_node, path, AE_TYPE);
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ACPI_ERROR((AE_INFO,
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"Type returned from %s was incorrect: %s, expected Btypes: 0x%X",
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path,
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acpi_ut_get_object_type_name(info->return_object),
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expected_return_btypes));
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/* On error exit, we must delete the return object */
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acpi_ut_remove_reference(info->return_object);
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status = AE_TYPE;
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goto cleanup;
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}
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/* Object type is OK, return it */
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*return_desc = info->return_object;
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cleanup:
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ACPI_FREE(info);
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_evaluate_numeric_object
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*
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* PARAMETERS: object_name - Object name to be evaluated
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* device_node - Node for the device
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* value - Where the value is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Evaluates a numeric namespace object for a selected device
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* and stores result in *Value.
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*
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* NOTE: Internal function, no parameter validation
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*
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******************************************************************************/
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acpi_status
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acpi_ut_evaluate_numeric_object(char *object_name,
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struct acpi_namespace_node *device_node,
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u64 *value)
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{
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union acpi_operand_object *obj_desc;
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acpi_status status;
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ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object);
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status = acpi_ut_evaluate_object(device_node, object_name,
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ACPI_BTYPE_INTEGER, &obj_desc);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/* Get the returned Integer */
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*value = obj_desc->integer.value;
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/* On exit, we must delete the return object */
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acpi_ut_remove_reference(obj_desc);
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_execute_STA
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*
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* PARAMETERS: device_node - Node for the device
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* flags - Where the status flags are returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Executes _STA for selected device and stores results in
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* *Flags.
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*
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* NOTE: Internal function, no parameter validation
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*
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******************************************************************************/
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acpi_status
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acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
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{
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union acpi_operand_object *obj_desc;
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acpi_status status;
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ACPI_FUNCTION_TRACE(ut_execute_STA);
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status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA,
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ACPI_BTYPE_INTEGER, &obj_desc);
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if (ACPI_FAILURE(status)) {
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if (AE_NOT_FOUND == status) {
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ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
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"_STA on %4.4s was not found, assuming device is present\n",
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acpi_ut_get_node_name(device_node)));
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*flags = ACPI_UINT32_MAX;
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status = AE_OK;
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}
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return_ACPI_STATUS(status);
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}
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/* Extract the status flags */
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*flags = (u32) obj_desc->integer.value;
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/* On exit, we must delete the return object */
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acpi_ut_remove_reference(obj_desc);
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_execute_power_methods
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*
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* PARAMETERS: device_node - Node for the device
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* method_names - Array of power method names
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* method_count - Number of methods to execute
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* out_values - Where the power method values are returned
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*
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* RETURN: Status, out_values
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*
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* DESCRIPTION: Executes the specified power methods for the device and returns
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* the result(s).
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*
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* NOTE: Internal function, no parameter validation
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*
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******************************************************************************/
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acpi_status
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acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
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const char **method_names,
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u8 method_count, u8 *out_values)
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{
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union acpi_operand_object *obj_desc;
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acpi_status status;
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acpi_status final_status = AE_NOT_FOUND;
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u32 i;
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ACPI_FUNCTION_TRACE(ut_execute_power_methods);
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for (i = 0; i < method_count; i++) {
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/*
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* Execute the power method (_sx_d or _sx_w). The only allowable
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* return type is an Integer.
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*/
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status = acpi_ut_evaluate_object(device_node,
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ACPI_CAST_PTR(char,
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method_names[i]),
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ACPI_BTYPE_INTEGER, &obj_desc);
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if (ACPI_SUCCESS(status)) {
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out_values[i] = (u8)obj_desc->integer.value;
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/* Delete the return object */
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acpi_ut_remove_reference(obj_desc);
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final_status = AE_OK; /* At least one value is valid */
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continue;
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}
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out_values[i] = ACPI_UINT8_MAX;
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if (status == AE_NOT_FOUND) {
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continue; /* Ignore if not found */
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}
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ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
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"Failed %s on Device %4.4s, %s\n",
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ACPI_CAST_PTR(char, method_names[i]),
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acpi_ut_get_node_name(device_node),
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acpi_format_exception(status)));
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}
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return_ACPI_STATUS(final_status);
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}
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