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10622bf8ce
It is reported by kernel build test systems that all ACPICA source files in the kernel tree have incorrect label indentation. This patch changes default indent option used in the release process to fix this bug. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
271 lines
7.8 KiB
C
271 lines
7.8 KiB
C
/******************************************************************************
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*
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* Module Name: exoparg3 - AML execution - opcodes with 3 arguments
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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 "acinterp.h"
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#include "acparser.h"
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#include "amlcode.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME("exoparg3")
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/*!
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* Naming convention for AML interpreter execution routines.
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*
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* The routines that begin execution of AML opcodes are named with a common
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* convention based upon the number of arguments, the number of target operands,
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* and whether or not a value is returned:
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*
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* AcpiExOpcode_xA_yT_zR
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*
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* Where:
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*
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* xA - ARGUMENTS: The number of arguments (input operands) that are
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* required for this opcode type (1 through 6 args).
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* yT - TARGETS: The number of targets (output operands) that are required
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* for this opcode type (0, 1, or 2 targets).
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* zR - RETURN VALUE: Indicates whether this opcode type returns a value
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* as the function return (0 or 1).
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*
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* The AcpiExOpcode* functions are called via the Dispatcher component with
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* fully resolved operands.
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!*/
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_opcode_3A_0T_0R
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*
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* PARAMETERS: walk_state - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute Triadic operator (3 operands)
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*
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******************************************************************************/
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acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
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{
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union acpi_operand_object **operand = &walk_state->operands[0];
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struct acpi_signal_fatal_info *fatal;
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acpi_status status = AE_OK;
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ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R,
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acpi_ps_get_opcode_name(walk_state->opcode));
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switch (walk_state->opcode) {
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case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
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(u32) operand[0]->integer.value,
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(u32) operand[1]->integer.value,
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(u32) operand[2]->integer.value));
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fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
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if (fatal) {
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fatal->type = (u32) operand[0]->integer.value;
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fatal->code = (u32) operand[1]->integer.value;
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fatal->argument = (u32) operand[2]->integer.value;
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}
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/* Always signal the OS! */
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status = acpi_os_signal(ACPI_SIGNAL_FATAL, fatal);
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/* Might return while OS is shutting down, just continue */
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ACPI_FREE(fatal);
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break;
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default:
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ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
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walk_state->opcode));
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status = AE_AML_BAD_OPCODE;
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goto cleanup;
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}
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cleanup:
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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_ex_opcode_3A_1T_1R
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*
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* PARAMETERS: walk_state - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute Triadic operator (3 operands)
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*
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******************************************************************************/
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acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
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{
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union acpi_operand_object **operand = &walk_state->operands[0];
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union acpi_operand_object *return_desc = NULL;
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char *buffer = NULL;
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acpi_status status = AE_OK;
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u64 index;
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acpi_size length;
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ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R,
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acpi_ps_get_opcode_name(walk_state->opcode));
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switch (walk_state->opcode) {
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case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */
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/*
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* Create the return object. The Source operand is guaranteed to be
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* either a String or a Buffer, so just use its type.
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*/
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return_desc = acpi_ut_create_internal_object((operand[0])->
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common.type);
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if (!return_desc) {
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status = AE_NO_MEMORY;
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goto cleanup;
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}
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/* Get the Integer values from the objects */
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index = operand[1]->integer.value;
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length = (acpi_size) operand[2]->integer.value;
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/*
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* If the index is beyond the length of the String/Buffer, or if the
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* requested length is zero, return a zero-length String/Buffer
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*/
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if (index >= operand[0]->string.length) {
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length = 0;
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}
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/* Truncate request if larger than the actual String/Buffer */
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else if ((index + length) > operand[0]->string.length) {
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length = (acpi_size) operand[0]->string.length -
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(acpi_size) index;
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}
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/* Strings always have a sub-pointer, not so for buffers */
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switch ((operand[0])->common.type) {
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case ACPI_TYPE_STRING:
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/* Always allocate a new buffer for the String */
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buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1);
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if (!buffer) {
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status = AE_NO_MEMORY;
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goto cleanup;
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}
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break;
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case ACPI_TYPE_BUFFER:
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/* If the requested length is zero, don't allocate a buffer */
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if (length > 0) {
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/* Allocate a new buffer for the Buffer */
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buffer = ACPI_ALLOCATE_ZEROED(length);
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if (!buffer) {
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status = AE_NO_MEMORY;
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goto cleanup;
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}
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}
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break;
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default: /* Should not happen */
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status = AE_AML_OPERAND_TYPE;
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goto cleanup;
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}
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if (buffer) {
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/* We have a buffer, copy the portion requested */
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ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
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length);
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}
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/* Set the length of the new String/Buffer */
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return_desc->string.pointer = buffer;
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return_desc->string.length = (u32) length;
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/* Mark buffer initialized */
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return_desc->buffer.flags |= AOPOBJ_DATA_VALID;
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break;
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default:
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ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
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walk_state->opcode));
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status = AE_AML_BAD_OPCODE;
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goto cleanup;
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}
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/* Store the result in the target */
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status = acpi_ex_store(return_desc, operand[3], walk_state);
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cleanup:
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/* Delete return object on error */
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if (ACPI_FAILURE(status) || walk_state->result_obj) {
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acpi_ut_remove_reference(return_desc);
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walk_state->result_obj = NULL;
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}
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/* Set the return object and exit */
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else {
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walk_state->result_obj = return_desc;
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}
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return_ACPI_STATUS(status);
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}
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