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!
diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c
new file mode 100644
index 0000000..e0fc6ab
--- /dev/null
+++ b/drivers/acpi/executer/exstore.c
@@ -0,0 +1,536 @@
+
+/******************************************************************************
+ *
+ * Module Name: exstore - AML Interpreter object store support
+ *
+ *****************************************************************************/
+
+/*
+ * 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/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT ACPI_EXECUTER
+ ACPI_MODULE_NAME ("exstore")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store
+ *
+ * PARAMETERS: *source_desc - Value to be stored
+ * *dest_desc - Where to store it. Must be an NS node
+ * or an union acpi_operand_object of type
+ * Reference;
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store the value described by source_desc into the location
+ * described by dest_desc. Called by various interpreter
+ * functions to store the result of an operation into
+ * the destination operand -- not just simply the actual "Store"
+ * ASL operator.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store (
+ union acpi_operand_object *source_desc,
+ union acpi_operand_object *dest_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *ref_desc = dest_desc;
+
+
+ ACPI_FUNCTION_TRACE_PTR ("ex_store", dest_desc);
+
+
+ /* Validate parameters */
+
+ if (!source_desc || !dest_desc) {
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Null parameter\n"));
+ return_ACPI_STATUS (AE_AML_NO_OPERAND);
+ }
+
+ /* dest_desc can be either a namespace node or an ACPI object */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE (dest_desc) == ACPI_DESC_TYPE_NAMED) {
+ /*
+ * Dest is a namespace node,
+ * Storing an object into a Named node.
+ */
+ status = acpi_ex_store_object_to_node (source_desc,
+ (struct acpi_namespace_node *) dest_desc, walk_state,
+ ACPI_IMPLICIT_CONVERSION);
+
+ return_ACPI_STATUS (status);
+ }
+
+ /* Destination object must be a Reference or a Constant object */
+
+ switch (ACPI_GET_OBJECT_TYPE (dest_desc)) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ /* Allow stores to Constants -- a Noop as per ACPI spec */
+
+ if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) {
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /*lint -fallthrough */
+
+ default:
+
+ /* Destination is not a Reference object */
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Target is not a Reference or Constant object - %s [%p]\n",
+ acpi_ut_get_object_type_name (dest_desc), dest_desc));
+
+ ACPI_DUMP_STACK_ENTRY (source_desc);
+ ACPI_DUMP_STACK_ENTRY (dest_desc);
+ ACPI_DUMP_OPERANDS (&dest_desc, ACPI_IMODE_EXECUTE, "ex_store",
+ 2, "Target is not a Reference or Constant object");
+
+ return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Examine the Reference opcode. These cases are handled:
+ *
+ * 1) Store to Name (Change the object associated with a name)
+ * 2) Store to an indexed area of a Buffer or Package
+ * 3) Store to a Method Local or Arg
+ * 4) Store to the debug object
+ */
+ switch (ref_desc->reference.opcode) {
+ case AML_NAME_OP:
+ case AML_REF_OF_OP:
+
+ /* Storing an object into a Name "container" */
+
+ status = acpi_ex_store_object_to_node (source_desc, ref_desc->reference.object,
+ walk_state, ACPI_IMPLICIT_CONVERSION);
+ break;
+
+
+ case AML_INDEX_OP:
+
+ /* Storing to an Index (pointer into a packager or buffer) */
+
+ status = acpi_ex_store_object_to_index (source_desc, ref_desc, walk_state);
+ break;
+
+
+ case AML_LOCAL_OP:
+ case AML_ARG_OP:
+
+ /* Store to a method local/arg */
+
+ status = acpi_ds_store_object_to_local (ref_desc->reference.opcode,
+ ref_desc->reference.offset, source_desc, walk_state);
+ break;
+
+
+ case AML_DEBUG_OP:
+
+ /*
+ * Storing to the Debug object causes the value stored to be
+ * displayed and otherwise has no effect -- see ACPI Specification
+ */
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "**** Write to Debug Object: Object %p %s ****:\n\n",
+ source_desc, acpi_ut_get_object_type_name (source_desc)));
+
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %s: ",
+ acpi_ut_get_object_type_name (source_desc)));
+
+ if (!acpi_ut_valid_internal_object (source_desc)) {
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT,
+ "%p, Invalid Internal Object!\n", source_desc));
+ break;
+ }
+
+ switch (ACPI_GET_OBJECT_TYPE (source_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ if (acpi_gbl_integer_byte_width == 4) {
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n",
+ (u32) source_desc->integer.value));
+ }
+ else {
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "0x%8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64 (source_desc->integer.value)));
+ }
+ break;
+
+
+ case ACPI_TYPE_BUFFER:
+
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]",
+ (u32) source_desc->buffer.length));
+ ACPI_DUMP_BUFFER (source_desc->buffer.pointer,
+ (source_desc->buffer.length < 32) ? source_desc->buffer.length : 32);
+ break;
+
+
+ case ACPI_TYPE_STRING:
+
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n",
+ source_desc->string.length, source_desc->string.pointer));
+ break;
+
+
+ case ACPI_TYPE_PACKAGE:
+
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] Elements Ptr - %p\n",
+ source_desc->package.count, source_desc->package.elements));
+ break;
+
+
+ default:
+
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "%p\n",
+ source_desc));
+ break;
+ }
+
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, "\n"));
+ break;
+
+
+ default:
+
+ ACPI_REPORT_ERROR (("ex_store: Unknown Reference opcode %X\n",
+ ref_desc->reference.opcode));
+ ACPI_DUMP_ENTRY (ref_desc, ACPI_LV_ERROR);
+
+ status = AE_AML_INTERNAL;
+ break;
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store_object_to_index
+ *
+ * PARAMETERS: *source_desc - Value to be stored
+ * *dest_desc - Named object to receive the value
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store the object to indexed Buffer or Package element
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store_object_to_index (
+ union acpi_operand_object *source_desc,
+ union acpi_operand_object *index_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *new_desc;
+ u8 value = 0;
+ u32 i;
+
+
+ ACPI_FUNCTION_TRACE ("ex_store_object_to_index");
+
+
+ /*
+ * Destination must be a reference pointer, and
+ * must point to either a buffer or a package
+ */
+ switch (index_desc->reference.target_type) {
+ case ACPI_TYPE_PACKAGE:
+ /*
+ * Storing to a package element. Copy the object and replace
+ * any existing object with the new object. No implicit
+ * conversion is performed.
+ *
+ * The object at *(index_desc->Reference.Where) is the
+ * element within the package that is to be modified.
+ * The parent package object is at index_desc->Reference.Object
+ */
+ obj_desc = *(index_desc->reference.where);
+
+ status = acpi_ut_copy_iobject_to_iobject (source_desc, &new_desc, walk_state);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ if (obj_desc) {
+ /* Decrement reference count by the ref count of the parent package */
+
+ for (i = 0; i < ((union acpi_operand_object *) index_desc->reference.object)->common.reference_count; i++) {
+ acpi_ut_remove_reference (obj_desc);
+ }
+ }
+
+ *(index_desc->reference.where) = new_desc;
+
+ /* Increment reference count by the ref count of the parent package -1 */
+
+ for (i = 1; i < ((union acpi_operand_object *) index_desc->reference.object)->common.reference_count; i++) {
+ acpi_ut_add_reference (new_desc);
+ }
+
+ break;
+
+
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ /*
+ * Store into a Buffer or String (not actually a real buffer_field)
+ * at a location defined by an Index.
+ *
+ * The first 8-bit element of the source object is written to the
+ * 8-bit Buffer location defined by the Index destination object,
+ * according to the ACPI 2.0 specification.
+ */
+
+ /*
+ * Make sure the target is a Buffer or String. An error should
+ * not happen here, since the reference_object was constructed
+ * by the INDEX_OP code.
+ */
+ obj_desc = index_desc->reference.object;
+ if ((ACPI_GET_OBJECT_TYPE (obj_desc) != ACPI_TYPE_BUFFER) &&
+ (ACPI_GET_OBJECT_TYPE (obj_desc) != ACPI_TYPE_STRING)) {
+ return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * The assignment of the individual elements will be slightly
+ * different for each source type.
+ */
+ switch (ACPI_GET_OBJECT_TYPE (source_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ /* Use the least-significant byte of the integer */
+
+ value = (u8) (source_desc->integer.value);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_STRING:
+
+ /* Note: Takes advantage of common string/buffer fields */
+
+ value = source_desc->buffer.pointer[0];
+ break;
+
+ default:
+
+ /* All other types are invalid */
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Source must be Integer/Buffer/String type, not %s\n",
+ acpi_ut_get_object_type_name (source_desc)));
+ return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
+ }
+
+ /* Store the source value into the target buffer byte */
+
+ obj_desc->buffer.pointer[index_desc->reference.offset] = value;
+ break;
+
+
+ default:
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Target is not a Package or buffer_field\n"));
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store_object_to_node
+ *
+ * PARAMETERS: source_desc - Value to be stored
+ * Node - Named object to receive the value
+ * walk_state - Current walk state
+ * implicit_conversion - Perform implicit conversion (yes/no)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store the object to the named object.
+ *
+ * The Assignment of an object to a named object is handled here
+ * The value 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.
+ *
+ * Assumes parameters are already validated.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store_object_to_node (
+ union acpi_operand_object *source_desc,
+ struct acpi_namespace_node *node,
+ struct acpi_walk_state *walk_state,
+ u8 implicit_conversion)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *target_desc;
+ union acpi_operand_object *new_desc;
+ acpi_object_type target_type;
+
+
+ ACPI_FUNCTION_TRACE_PTR ("ex_store_object_to_node", source_desc);
+
+
+ /*
+ * Get current type of the node, and object attached to Node
+ */
+ target_type = acpi_ns_get_type (node);
+ target_desc = acpi_ns_get_attached_object (node);
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n",
+ source_desc, acpi_ut_get_object_type_name (source_desc),
+ node, acpi_ut_get_type_name (target_type)));
+
+ /*
+ * Resolve the source object to an actual value
+ * (If it is a reference object)
+ */
+ status = acpi_ex_resolve_object (&source_desc, target_type, walk_state);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ /* If no implicit conversion, drop into the default case below */
+
+ if (!implicit_conversion) {
+ /* Force execution of default (no implicit conversion) */
+
+ target_type = ACPI_TYPE_ANY;
+ }
+
+ /*
+ * Do the actual store operation
+ */
+ 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:
+
+ /*
+ * For fields, copy the source data to the target field.
+ */
+ status = acpi_ex_write_data_to_field (source_desc, target_desc, &walk_state->result_obj);
+ break;
+
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /*
+ * These target types are all of type Integer/String/Buffer, and
+ * therefore support implicit conversion before the store.
+ *
+ * Copy and/or convert the source object to a new target object
+ */
+ status = acpi_ex_store_object_to_object (source_desc, target_desc, &new_desc, walk_state);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ if (new_desc != target_desc) {
+ /*
+ * Store the new new_desc as the new value of the Name, and set
+ * the Name's type to that of the value being stored in it.
+ * source_desc reference count is incremented by attach_object.
+ *
+ * Note: This may change the type of the node if an explicit store
+ * has been performed such that the node/object type has been
+ * changed.
+ */
+ status = acpi_ns_attach_object (node, new_desc, new_desc->common.type);
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "Store %s into %s via Convert/Attach\n",
+ acpi_ut_get_object_type_name (source_desc),
+ acpi_ut_get_object_type_name (new_desc)));
+ }
+ break;
+
+
+ default:
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "Storing %s (%p) directly into node (%p), no implicit conversion\n",
+ acpi_ut_get_object_type_name (source_desc), source_desc, node));
+
+ /* No conversions for all other types. Just attach the source object */
+
+ status = acpi_ns_attach_object (node, source_desc, ACPI_GET_OBJECT_TYPE (source_desc));
+ break;
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+