1 /*******************************************************************************
3 * Module Name: utexcep - Exception code support
5 ******************************************************************************/
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47 #define ACPI_DEFINE_EXCEPTION_TABLE
48 #include <contrib/dev/acpica/include/acpi.h>
49 #include <contrib/dev/acpica/include/accommon.h>
52 #define _COMPONENT ACPI_UTILITIES
53 ACPI_MODULE_NAME ("utexcep")
56 /*******************************************************************************
58 * FUNCTION: AcpiFormatException
60 * PARAMETERS: Status - The ACPI_STATUS code to be formatted
62 * RETURN: A string containing the exception text. A valid pointer is
65 * DESCRIPTION: This function translates an ACPI exception into an ASCII
66 * string. Returns "unknown status" string for invalid codes.
68 ******************************************************************************/
74 const ACPI_EXCEPTION_INFO *Exception;
77 ACPI_FUNCTION_ENTRY ();
80 Exception = AcpiUtValidateException (Status);
83 /* Exception code was not recognized */
86 "Unknown exception code: 0x%8.8X", Status));
88 return ("UNKNOWN_STATUS_CODE");
91 return (Exception->Name);
94 ACPI_EXPORT_SYMBOL (AcpiFormatException)
97 /*******************************************************************************
99 * FUNCTION: AcpiUtValidateException
101 * PARAMETERS: Status - The ACPI_STATUS code to be formatted
103 * RETURN: A string containing the exception text. NULL if exception is
106 * DESCRIPTION: This function validates and translates an ACPI exception into
109 ******************************************************************************/
111 const ACPI_EXCEPTION_INFO *
112 AcpiUtValidateException (
116 const ACPI_EXCEPTION_INFO *Exception = NULL;
119 ACPI_FUNCTION_ENTRY ();
123 * Status is composed of two parts, a "type" and an actual code
125 SubStatus = (Status & ~AE_CODE_MASK);
127 switch (Status & AE_CODE_MASK)
129 case AE_CODE_ENVIRONMENTAL:
131 if (SubStatus <= AE_CODE_ENV_MAX)
133 Exception = &AcpiGbl_ExceptionNames_Env [SubStatus];
137 case AE_CODE_PROGRAMMER:
139 if (SubStatus <= AE_CODE_PGM_MAX)
141 Exception = &AcpiGbl_ExceptionNames_Pgm [SubStatus];
145 case AE_CODE_ACPI_TABLES:
147 if (SubStatus <= AE_CODE_TBL_MAX)
149 Exception = &AcpiGbl_ExceptionNames_Tbl [SubStatus];
155 if (SubStatus <= AE_CODE_AML_MAX)
157 Exception = &AcpiGbl_ExceptionNames_Aml [SubStatus];
161 case AE_CODE_CONTROL:
163 if (SubStatus <= AE_CODE_CTRL_MAX)
165 Exception = &AcpiGbl_ExceptionNames_Ctrl [SubStatus];
174 if (!Exception || !Exception->Name)