124 lines
3 KiB
C
124 lines
3 KiB
C
|
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* Module Name: utexcep - Exception code support
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#define EXPORT_ACPI_INTERFACES
|
||
|
|
|
||
|
|
#define ACPI_DEFINE_EXCEPTION_TABLE
|
||
|
|
#include <acpi/acpi.h>
|
||
|
|
#include "accommon.h"
|
||
|
|
|
||
|
|
#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 struct acpi_exception_info *exception;
|
||
|
|
|
||
|
|
ACPI_FUNCTION_ENTRY();
|
||
|
|
|
||
|
|
exception = acpi_ut_validate_exception(status);
|
||
|
|
if (!exception) {
|
||
|
|
|
||
|
|
/* Exception code was not recognized */
|
||
|
|
|
||
|
|
ACPI_ERROR((AE_INFO,
|
||
|
|
"Unknown exception code: 0x%8.8X", status));
|
||
|
|
|
||
|
|
return ("UNKNOWN_STATUS_CODE");
|
||
|
|
}
|
||
|
|
|
||
|
|
return (exception->name);
|
||
|
|
}
|
||
|
|
|
||
|
|
ACPI_EXPORT_SYMBOL(acpi_format_exception)
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* 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 struct acpi_exception_info *acpi_ut_validate_exception(acpi_status status)
|
||
|
|
{
|
||
|
|
u32 sub_status;
|
||
|
|
const struct acpi_exception_info *exception = NULL;
|
||
|
|
|
||
|
|
ACPI_FUNCTION_ENTRY();
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Status is composed of two parts, a "type" and an actual code
|
||
|
|
*/
|
||
|
|
sub_status = (status & ~AE_CODE_MASK);
|
||
|
|
|
||
|
|
switch (status & AE_CODE_MASK) {
|
||
|
|
case AE_CODE_ENVIRONMENTAL:
|
||
|
|
|
||
|
|
if (sub_status <= AE_CODE_ENV_MAX) {
|
||
|
|
exception = &acpi_gbl_exception_names_env[sub_status];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case AE_CODE_PROGRAMMER:
|
||
|
|
|
||
|
|
if (sub_status <= AE_CODE_PGM_MAX) {
|
||
|
|
exception = &acpi_gbl_exception_names_pgm[sub_status];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case AE_CODE_ACPI_TABLES:
|
||
|
|
|
||
|
|
if (sub_status <= AE_CODE_TBL_MAX) {
|
||
|
|
exception = &acpi_gbl_exception_names_tbl[sub_status];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case AE_CODE_AML:
|
||
|
|
|
||
|
|
if (sub_status <= AE_CODE_AML_MAX) {
|
||
|
|
exception = &acpi_gbl_exception_names_aml[sub_status];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case AE_CODE_CONTROL:
|
||
|
|
|
||
|
|
if (sub_status <= AE_CODE_CTRL_MAX) {
|
||
|
|
exception = &acpi_gbl_exception_names_ctrl[sub_status];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!exception || !exception->name) {
|
||
|
|
return (NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (exception);
|
||
|
|
}
|