Import ACPICA 20120711.

1 files changed, 174 insertions, 0 deletions

diff --git a/source/components/utilities/utexcep.c b/source/components/utilities/utexcep.c
new file mode 100644
index 0000000..5d4e9ed
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+++ b/source/components/utilities/utexcep.c
@@ -0,0 +1,174 @@
+/*******************************************************************************
+ *
+ * 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 __UTEXCEP_C__
+
+#define ACPI_DEFINE_EXCEPTION_TABLE
+#include "acpi.h"
+#include "accommon.h"
+
+
+#define _COMPONENT          ACPI_UTILITIES
+        ACPI_MODULE_NAME    ("utexcep")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiFormatException
+ *
+ * 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 *
+AcpiFormatException (
+    ACPI_STATUS             Status)
+{
+    const char              *Exception = NULL;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    Exception = AcpiUtValidateException (Status);
+    if (!Exception)
+    {
+        /* Exception code was not recognized */
+
+        ACPI_ERROR ((AE_INFO,
+            "Unknown exception code: 0x%8.8X", Status));
+
+        Exception = "UNKNOWN_STATUS_CODE";
+    }
+
+    return (ACPI_CAST_PTR (const char, Exception));
+}
+
+ACPI_EXPORT_SYMBOL (AcpiFormatException)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiUtValidateException
+ *
+ * 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 *
+AcpiUtValidateException (
+    ACPI_STATUS             Status)
+{
+    UINT32                  SubStatus;
+    const char              *Exception = NULL;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    /*
+     * Status is composed of two parts, a "type" and an actual code
+     */
+    SubStatus = (Status & ~AE_CODE_MASK);
+
+    switch (Status & AE_CODE_MASK)
+    {
+    case AE_CODE_ENVIRONMENTAL:
+
+        if (SubStatus <= AE_CODE_ENV_MAX)
+        {
+            Exception = AcpiGbl_ExceptionNames_Env [SubStatus];
+        }
+        break;
+
+    case AE_CODE_PROGRAMMER:
+
+        if (SubStatus <= AE_CODE_PGM_MAX)
+        {
+            Exception = AcpiGbl_ExceptionNames_Pgm [SubStatus];
+        }
+        break;
+
+    case AE_CODE_ACPI_TABLES:
+
+        if (SubStatus <= AE_CODE_TBL_MAX)
+        {
+            Exception = AcpiGbl_ExceptionNames_Tbl [SubStatus];
+        }
+        break;
+
+    case AE_CODE_AML:
+
+        if (SubStatus <= AE_CODE_AML_MAX)
+        {
+            Exception = AcpiGbl_ExceptionNames_Aml [SubStatus];
+        }
+        break;
+
+    case AE_CODE_CONTROL:
+
+        if (SubStatus <= AE_CODE_CTRL_MAX)
+        {
+            Exception = AcpiGbl_ExceptionNames_Ctrl [SubStatus];
+        }
+        break;
+
+    default:
+        break;
+    }
+
+    return (ACPI_CAST_PTR (const char, Exception));
+}