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ACPICA: Split exception code utilities to a new file, utexcep.c
Simplifies sharing of these functions. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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Bob Moore
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Len Brown
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Jul 17, 2012
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| /******************************************************************************* | ||
| * | ||
| * Module Name: utexcep - Exception code support | ||
| * | ||
| ******************************************************************************/ | ||
|
|
||
| /* | ||
| * Copyright (C) 2000 - 2012, Intel Corp. | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions, and the following disclaimer, | ||
| * without modification. | ||
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
| * substantially similar to the "NO WARRANTY" disclaimer below | ||
| * ("Disclaimer") and any redistribution must be conditioned upon | ||
| * including a substantially similar Disclaimer requirement for further | ||
| * binary redistribution. | ||
| * 3. Neither the names of the above-listed copyright holders nor the names | ||
| * of any contributors may be used to endorse or promote products derived | ||
| * from this software without specific prior written permission. | ||
| * | ||
| * Alternatively, this software may be distributed under the terms of the | ||
| * GNU General Public License ("GPL") version 2 as published by the Free | ||
| * Software Foundation. | ||
| * | ||
| * NO WARRANTY | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | ||
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | ||
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| * POSSIBILITY OF SUCH DAMAGES. | ||
| */ | ||
|
|
||
| #define ACPI_DEFINE_EXCEPTION_TABLE | ||
| #include <linux/export.h> | ||
| #include <acpi/acpi.h> | ||
| #include "accommon.h" | ||
|
|
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| #define _COMPONENT ACPI_UTILITIES | ||
| ACPI_MODULE_NAME("utexcep") | ||
|
|
||
| /******************************************************************************* | ||
| * | ||
| * FUNCTION: acpi_format_exception | ||
| * | ||
| * PARAMETERS: status - The acpi_status code to be formatted | ||
| * | ||
| * RETURN: A string containing the exception text. A valid pointer is | ||
| * always returned. | ||
| * | ||
| * DESCRIPTION: This function translates an ACPI exception into an ASCII | ||
| * string. Returns "unknown status" string for invalid codes. | ||
| * | ||
| ******************************************************************************/ | ||
| const char *acpi_format_exception(acpi_status status) | ||
| { | ||
| const char *exception = NULL; | ||
|
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| ACPI_FUNCTION_ENTRY(); | ||
|
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| exception = acpi_ut_validate_exception(status); | ||
| if (!exception) { | ||
|
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| /* Exception code was not recognized */ | ||
|
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| ACPI_ERROR((AE_INFO, | ||
| "Unknown exception code: 0x%8.8X", status)); | ||
|
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| exception = "UNKNOWN_STATUS_CODE"; | ||
| } | ||
|
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| return (ACPI_CAST_PTR(const char, exception)); | ||
| } | ||
|
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| ACPI_EXPORT_SYMBOL(acpi_format_exception) | ||
|
|
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| /******************************************************************************* | ||
| * | ||
| * FUNCTION: acpi_ut_validate_exception | ||
| * | ||
| * PARAMETERS: status - The acpi_status code to be formatted | ||
| * | ||
| * RETURN: A string containing the exception text. NULL if exception is | ||
| * not valid. | ||
| * | ||
| * DESCRIPTION: This function validates and translates an ACPI exception into | ||
| * an ASCII string. | ||
| * | ||
| ******************************************************************************/ | ||
| const char *acpi_ut_validate_exception(acpi_status status) | ||
| { | ||
| u32 sub_status; | ||
| const char *exception = NULL; | ||
|
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| ACPI_FUNCTION_ENTRY(); | ||
|
|
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| /* | ||
| * Status is composed of two parts, a "type" and an actual code | ||
| */ | ||
| sub_status = (status & ~AE_CODE_MASK); | ||
|
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| switch (status & AE_CODE_MASK) { | ||
| case AE_CODE_ENVIRONMENTAL: | ||
|
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| if (sub_status <= AE_CODE_ENV_MAX) { | ||
| exception = acpi_gbl_exception_names_env[sub_status]; | ||
| } | ||
| break; | ||
|
|
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| case AE_CODE_PROGRAMMER: | ||
|
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| if (sub_status <= AE_CODE_PGM_MAX) { | ||
| exception = acpi_gbl_exception_names_pgm[sub_status]; | ||
| } | ||
| break; | ||
|
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| case AE_CODE_ACPI_TABLES: | ||
|
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| if (sub_status <= AE_CODE_TBL_MAX) { | ||
| exception = acpi_gbl_exception_names_tbl[sub_status]; | ||
| } | ||
| break; | ||
|
|
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| case AE_CODE_AML: | ||
|
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| if (sub_status <= AE_CODE_AML_MAX) { | ||
| exception = acpi_gbl_exception_names_aml[sub_status]; | ||
| } | ||
| break; | ||
|
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| case AE_CODE_CONTROL: | ||
|
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| if (sub_status <= AE_CODE_CTRL_MAX) { | ||
| exception = acpi_gbl_exception_names_ctrl[sub_status]; | ||
| } | ||
| break; | ||
|
|
||
| default: | ||
| break; | ||
| } | ||
|
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| return (ACPI_CAST_PTR(const char, exception)); | ||
| } |
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