vendor/acpica/20141107

1 files changed, 226 insertions, 0 deletions

diff --git a/source/tools/acpiexec/aeinitfile.c b/source/tools/acpiexec/aeinitfile.c
new file mode 100644
index 000000000000..de36020d7119
--- /dev/null
+++ b/source/tools/acpiexec/aeinitfile.c
@@ -0,0 +1,226 @@
+/******************************************************************************
+ *
+ * Module Name: aeinitfile - Support for optional initialization file
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, 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.
+ */
+
+#include "aecommon.h"
+#include "acdispat.h"
+
+#define _COMPONENT          ACPI_TOOLS
+        ACPI_MODULE_NAME    ("aeinitfile")
+
+
+/* Local prototypes */
+
+static void
+AeDoOneOverride (
+    char                    *Pathname,
+    char                    *ValueString,
+    ACPI_OPERAND_OBJECT     *ObjDesc,
+    ACPI_WALK_STATE         *WalkState);
+
+
+#define AE_FILE_BUFFER_SIZE  512
+
+static char                 NameBuffer[AE_FILE_BUFFER_SIZE];
+static char                 ValueBuffer[AE_FILE_BUFFER_SIZE];
+static FILE                 *InitFile;
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    AeOpenInitializationFile
+ *
+ * PARAMETERS:  Filename            - Path to the init file
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Open the initialization file for the -fi option
+ *
+ *****************************************************************************/
+
+int
+AeOpenInitializationFile (
+    char                    *Filename)
+{
+
+    InitFile = fopen (Filename, "r");
+    if (!InitFile)
+    {
+        perror ("Could not open initialization file");
+        return (-1);
+    }
+
+    AcpiOsPrintf ("Opened initialization file [%s]\n", Filename);
+    return (0);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    AeDoObjectOverrides
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Read the initialization file and perform all overrides
+ *
+ * NOTE:        The format of the file is multiple lines, each of format:
+ *                  <ACPI-pathname> <Integer Value>
+ *
+ *****************************************************************************/
+
+void
+AeDoObjectOverrides (
+    void)
+{
+    ACPI_OPERAND_OBJECT     *ObjDesc;
+    ACPI_WALK_STATE         *WalkState;
+    int                     i;
+
+
+    if (!InitFile)
+    {
+        return;
+    }
+
+    /* Create needed objects to be reused for each init entry */
+
+    ObjDesc = AcpiUtCreateIntegerObject (0);
+    WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
+
+    NameBuffer[0] = '\\';
+
+     /* Read the entire file line-by-line */
+
+    while (fscanf (InitFile, "%s %s\n",
+        ACPI_CAST_PTR (char, &NameBuffer[1]),
+        ACPI_CAST_PTR (char, &ValueBuffer)) == 2)
+    {
+        /* Add a root prefix if not present in the string */
+
+        i = 0;
+        if (NameBuffer[1] == '\\')
+        {
+            i = 1;
+        }
+
+        AeDoOneOverride (&NameBuffer[i], ValueBuffer, ObjDesc, WalkState);
+    }
+
+    /* Cleanup */
+
+    fclose (InitFile);
+    AcpiDsDeleteWalkState (WalkState);
+    AcpiUtRemoveReference (ObjDesc);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    AeDoOneOverride
+ *
+ * PARAMETERS:  Pathname            - AML namepath
+ *              ValueString         - New integer value to be stored
+ *              ObjDesc             - Descriptor with integer override value
+ *              WalkState           - Used for the Store operation
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Perform an overrided for a single namespace object
+ *
+ *****************************************************************************/
+
+static void
+AeDoOneOverride (
+    char                    *Pathname,
+    char                    *ValueString,
+    ACPI_OPERAND_OBJECT     *ObjDesc,
+    ACPI_WALK_STATE         *WalkState)
+{
+    ACPI_HANDLE             Handle;
+    ACPI_STATUS             Status;
+    UINT64                  Value;
+
+
+    AcpiOsPrintf ("Value Override: %s, ", Pathname);
+
+    /*
+     * Get the namespace node associated with the override
+     * pathname from the init file.
+     */
+    Status = AcpiGetHandle (NULL, Pathname, &Handle);
+    if (ACPI_FAILURE (Status))
+    {
+        AcpiOsPrintf ("%s\n", AcpiFormatException (Status));
+        return;
+    }
+
+    /* Extract the 64-bit integer */
+
+    Status = AcpiUtStrtoul64 (ValueString, 0, &Value);
+    if (ACPI_FAILURE (Status))
+    {
+        AcpiOsPrintf ("%s\n", AcpiFormatException (Status));
+        return;
+    }
+
+    ObjDesc->Integer.Value = Value;
+
+    /*
+     * At the point this function is called, the namespace is fully
+     * built and initialized. We can simply store the new object to
+     * the target node.
+     */
+    AcpiExEnterInterpreter ();
+    Status = AcpiExStore (ObjDesc, Handle, WalkState);
+    AcpiExExitInterpreter ();
+
+    if (ACPI_FAILURE (Status))
+    {
+        AcpiOsPrintf ("%s\n", AcpiFormatException (Status));
+        return;
+    }
+
+    AcpiOsPrintf ("New value: 0x%8.8X%8.8X\n",
+        ACPI_FORMAT_UINT64 (Value));
+}