Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 306 insertions, 0 deletions

diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c
new file mode 100644
index 000000000000..d3677feb07fd
--- /dev/null
+++ b/drivers/acpi/executer/exstoren.c
@@ -0,0 +1,306 @@
+
+/******************************************************************************
+ *
+ * Module Name: exstoren - AML Interpreter object store support,
+ *                        Store to Node (namespace object)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acpi.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+
+
+#define _COMPONENT          ACPI_EXECUTER
+	 ACPI_MODULE_NAME    ("exstoren")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_resolve_object
+ *
+ * PARAMETERS:  source_desc_ptr     - Pointer to the source object
+ *              target_type         - Current type of the target
+ *              walk_state          - Current walk state
+ *
+ * RETURN:      Status, resolved object in source_desc_ptr.
+ *
+ * DESCRIPTION: Resolve an object.  If the object is a reference, dereference
+ *              it and return the actual object in the source_desc_ptr.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_resolve_object (
+	union acpi_operand_object       **source_desc_ptr,
+	acpi_object_type                target_type,
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_operand_object       *source_desc = *source_desc_ptr;
+	acpi_status                     status = AE_OK;
+
+
+	ACPI_FUNCTION_TRACE ("ex_resolve_object");
+
+
+	/*
+	 * Ensure we have a Target that can be stored to
+	 */
+	switch (target_type) {
+	case ACPI_TYPE_BUFFER_FIELD:
+	case ACPI_TYPE_LOCAL_REGION_FIELD:
+	case ACPI_TYPE_LOCAL_BANK_FIELD:
+	case ACPI_TYPE_LOCAL_INDEX_FIELD:
+		/*
+		 * These cases all require only Integers or values that
+		 * can be converted to Integers (Strings or Buffers)
+		 */
+
+	case ACPI_TYPE_INTEGER:
+	case ACPI_TYPE_STRING:
+	case ACPI_TYPE_BUFFER:
+
+		/*
+		 * Stores into a Field/Region or into a Integer/Buffer/String
+		 * are all essentially the same.  This case handles the
+		 * "interchangeable" types Integer, String, and Buffer.
+		 */
+		if (ACPI_GET_OBJECT_TYPE (source_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
+			/* Resolve a reference object first */
+
+			status = acpi_ex_resolve_to_value (source_desc_ptr, walk_state);
+			if (ACPI_FAILURE (status)) {
+				break;
+			}
+		}
+
+		/* For copy_object, no further validation necessary */
+
+		if (walk_state->opcode == AML_COPY_OP) {
+			break;
+		}
+
+		/*
+		 * Must have a Integer, Buffer, or String
+		 */
+		if ((ACPI_GET_OBJECT_TYPE (source_desc) != ACPI_TYPE_INTEGER)   &&
+			(ACPI_GET_OBJECT_TYPE (source_desc) != ACPI_TYPE_BUFFER)    &&
+			(ACPI_GET_OBJECT_TYPE (source_desc) != ACPI_TYPE_STRING)    &&
+			!((ACPI_GET_OBJECT_TYPE (source_desc) == ACPI_TYPE_LOCAL_REFERENCE) && (source_desc->reference.opcode == AML_LOAD_OP))) {
+			/*
+			 * Conversion successful but still not a valid type
+			 */
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+				"Cannot assign type %s to %s (must be type Int/Str/Buf)\n",
+				acpi_ut_get_object_type_name (source_desc),
+				acpi_ut_get_type_name (target_type)));
+			status = AE_AML_OPERAND_TYPE;
+		}
+		break;
+
+
+	case ACPI_TYPE_LOCAL_ALIAS:
+	case ACPI_TYPE_LOCAL_METHOD_ALIAS:
+
+		/*
+		 * Aliases are resolved by acpi_ex_prep_operands
+		 */
+		ACPI_REPORT_ERROR (("Store into Alias - should never happen\n"));
+		status = AE_AML_INTERNAL;
+		break;
+
+
+	case ACPI_TYPE_PACKAGE:
+	default:
+
+		/*
+		 * All other types than Alias and the various Fields come here,
+		 * including the untyped case - ACPI_TYPE_ANY.
+		 */
+		break;
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_store_object_to_object
+ *
+ * PARAMETERS:  source_desc         - Object to store
+ *              dest_desc           - Object to receive a copy of the source
+ *              new_desc            - New object if dest_desc is obsoleted
+ *              walk_state          - Current walk state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: "Store" an object to another object.  This may include
+ *              converting the source type to the target type (implicit
+ *              conversion), and a copy of the value of the source to
+ *              the target.
+ *
+ *              The Assignment of an object to another (not named) object
+ *              is handled here.
+ *              The Source passed in will replace the current value (if any)
+ *              with the input value.
+ *
+ *              When storing into an object the data is converted to the
+ *              target object type then stored in the object.  This means
+ *              that the target object type (for an initialized target) will
+ *              not be changed by a store operation.
+ *
+ *              This module allows destination types of Number, String,
+ *              Buffer, and Package.
+ *
+ *              Assumes parameters are already validated.  NOTE: source_desc
+ *              resolution (from a reference object) must be performed by
+ *              the caller if necessary.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store_object_to_object (
+	union acpi_operand_object       *source_desc,
+	union acpi_operand_object       *dest_desc,
+	union acpi_operand_object       **new_desc,
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_operand_object       *actual_src_desc;
+	acpi_status                     status = AE_OK;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ex_store_object_to_object", source_desc);
+
+
+	actual_src_desc = source_desc;
+	if (!dest_desc) {
+		/*
+		 * There is no destination object (An uninitialized node or
+		 * package element), so we can simply copy the source object
+		 * creating a new destination object
+		 */
+		status = acpi_ut_copy_iobject_to_iobject (actual_src_desc, new_desc, walk_state);
+		return_ACPI_STATUS (status);
+	}
+
+	if (ACPI_GET_OBJECT_TYPE (source_desc) != ACPI_GET_OBJECT_TYPE (dest_desc)) {
+		/*
+		 * The source type does not match the type of the destination.
+		 * Perform the "implicit conversion" of the source to the current type
+		 * of the target as per the ACPI specification.
+		 *
+		 * If no conversion performed, actual_src_desc = source_desc.
+		 * Otherwise, actual_src_desc is a temporary object to hold the
+		 * converted object.
+		 */
+		status = acpi_ex_convert_to_target_type (ACPI_GET_OBJECT_TYPE (dest_desc),
+				  source_desc, &actual_src_desc, walk_state);
+		if (ACPI_FAILURE (status)) {
+			return_ACPI_STATUS (status);
+		}
+
+		if (source_desc == actual_src_desc) {
+			/*
+			 * No conversion was performed. Return the source_desc as the
+			 * new object.
+			 */
+			*new_desc = source_desc;
+			return_ACPI_STATUS (AE_OK);
+		}
+	}
+
+	/*
+	 * We now have two objects of identical types, and we can perform a
+	 * copy of the *value* of the source object.
+	 */
+	switch (ACPI_GET_OBJECT_TYPE (dest_desc)) {
+	case ACPI_TYPE_INTEGER:
+
+		dest_desc->integer.value = actual_src_desc->integer.value;
+
+		/* Truncate value if we are executing from a 32-bit ACPI table */
+
+		acpi_ex_truncate_for32bit_table (dest_desc);
+		break;
+
+	case ACPI_TYPE_STRING:
+
+		status = acpi_ex_store_string_to_string (actual_src_desc, dest_desc);
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		/*
+		 * Note: There is different store behavior depending on the original
+		 * source type
+		 */
+		status = acpi_ex_store_buffer_to_buffer (actual_src_desc, dest_desc);
+		break;
+
+	case ACPI_TYPE_PACKAGE:
+
+		status = acpi_ut_copy_iobject_to_iobject (actual_src_desc, &dest_desc,
+				 walk_state);
+		break;
+
+	default:
+		/*
+		 * All other types come here.
+		 */
+		ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Store into type %s not implemented\n",
+			acpi_ut_get_object_type_name (dest_desc)));
+
+		status = AE_NOT_IMPLEMENTED;
+		break;
+	}
+
+	if (actual_src_desc != source_desc) {
+		/* Delete the intermediate (temporary) source object */
+
+		acpi_ut_remove_reference (actual_src_desc);
+	}
+
+	*new_desc = dest_desc;
+	return_ACPI_STATUS (status);
+}
+
+