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/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c
new file mode 100644
index 0000000..eb8af47
--- /dev/null
+++ b/drivers/acpi/dispatcher/dsobject.c
@@ -0,0 +1,618 @@
+/******************************************************************************
+ *
+ * Module Name: dsobject - Dispatcher object management routines
+ *
+ *****************************************************************************/
+
+/*
+ * 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/acparser.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ ACPI_MODULE_NAME ("dsobject")
+
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_build_internal_object
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser object to be translated
+ * obj_desc_ptr - Where the ACPI internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
+ * Simple objects are any objects other than a package object!
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ds_build_internal_object (
+ struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ union acpi_operand_object **obj_desc_ptr)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("ds_build_internal_object");
+
+
+ *obj_desc_ptr = NULL;
+ if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+ /*
+ * This is an named object reference. If this name was
+ * previously looked up in the namespace, it was stored in this op.
+ * Otherwise, go ahead and look it up now
+ */
+ if (!op->common.node) {
+ status = acpi_ns_lookup (walk_state->scope_info, op->common.value.string,
+ ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL,
+ (struct acpi_namespace_node **) &(op->common.node));
+
+ if (ACPI_FAILURE (status)) {
+ ACPI_REPORT_NSERROR (op->common.value.string, status);
+ return_ACPI_STATUS (status);
+ }
+ }
+ }
+
+ /* Create and init the internal ACPI object */
+
+ obj_desc = acpi_ut_create_internal_object ((acpi_ps_get_opcode_info (op->common.aml_opcode))->object_type);
+ if (!obj_desc) {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ status = acpi_ds_init_object_from_op (walk_state, op, op->common.aml_opcode, &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ acpi_ut_remove_reference (obj_desc);
+ return_ACPI_STATUS (status);
+ }
+
+ *obj_desc_ptr = obj_desc;
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_build_internal_buffer_obj
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser object to be translated
+ * buffer_length - Length of the buffer
+ * obj_desc_ptr - Where the ACPI internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parser Op package object to the equivalent
+ * namespace object
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ds_build_internal_buffer_obj (
+ struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ u32 buffer_length,
+ union acpi_operand_object **obj_desc_ptr)
+{
+ union acpi_parse_object *arg;
+ union acpi_operand_object *obj_desc;
+ union acpi_parse_object *byte_list;
+ u32 byte_list_length = 0;
+
+
+ ACPI_FUNCTION_TRACE ("ds_build_internal_buffer_obj");
+
+
+ obj_desc = *obj_desc_ptr;
+ if (obj_desc) {
+ /*
+ * We are evaluating a Named buffer object "Name (xxxx, Buffer)".
+ * The buffer object already exists (from the NS node)
+ */
+ }
+ else {
+ /* Create a new buffer object */
+
+ obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_BUFFER);
+ *obj_desc_ptr = obj_desc;
+ if (!obj_desc) {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+ }
+
+ /*
+ * Second arg is the buffer data (optional) byte_list can be either
+ * individual bytes or a string initializer. In either case, a
+ * byte_list appears in the AML.
+ */
+ arg = op->common.value.arg; /* skip first arg */
+
+ byte_list = arg->named.next;
+ if (byte_list) {
+ if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) {
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Expecting bytelist, got AML opcode %X in op %p\n",
+ byte_list->common.aml_opcode, byte_list));
+
+ acpi_ut_remove_reference (obj_desc);
+ return (AE_TYPE);
+ }
+
+ byte_list_length = (u32) byte_list->common.value.integer;
+ }
+
+ /*
+ * The buffer length (number of bytes) will be the larger of:
+ * 1) The specified buffer length and
+ * 2) The length of the initializer byte list
+ */
+ obj_desc->buffer.length = buffer_length;
+ if (byte_list_length > buffer_length) {
+ obj_desc->buffer.length = byte_list_length;
+ }
+
+ /* Allocate the buffer */
+
+ if (obj_desc->buffer.length == 0) {
+ obj_desc->buffer.pointer = NULL;
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "Buffer defined with zero length in AML, creating\n"));
+ }
+ else {
+ obj_desc->buffer.pointer = ACPI_MEM_CALLOCATE (
+ obj_desc->buffer.length);
+ if (!obj_desc->buffer.pointer) {
+ acpi_ut_delete_object_desc (obj_desc);
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Initialize buffer from the byte_list (if present) */
+
+ if (byte_list) {
+ ACPI_MEMCPY (obj_desc->buffer.pointer, byte_list->named.data,
+ byte_list_length);
+ }
+ }
+
+ obj_desc->buffer.flags |= AOPOBJ_DATA_VALID;
+ op->common.node = (struct acpi_namespace_node *) obj_desc;
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_build_internal_package_obj
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser object to be translated
+ * package_length - Number of elements in the package
+ * obj_desc_ptr - Where the ACPI internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parser Op package object to the equivalent
+ * namespace object
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ds_build_internal_package_obj (
+ struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ u32 package_length,
+ union acpi_operand_object **obj_desc_ptr)
+{
+ union acpi_parse_object *arg;
+ union acpi_parse_object *parent;
+ union acpi_operand_object *obj_desc = NULL;
+ u32 package_list_length;
+ acpi_status status = AE_OK;
+ u32 i;
+
+
+ ACPI_FUNCTION_TRACE ("ds_build_internal_package_obj");
+
+
+ /* Find the parent of a possibly nested package */
+
+ parent = op->common.parent;
+ while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
+ (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
+ parent = parent->common.parent;
+ }
+
+ obj_desc = *obj_desc_ptr;
+ if (obj_desc) {
+ /*
+ * We are evaluating a Named package object "Name (xxxx, Package)".
+ * Get the existing package object from the NS node
+ */
+ }
+ else {
+ obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_PACKAGE);
+ *obj_desc_ptr = obj_desc;
+ if (!obj_desc) {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ obj_desc->package.node = parent->common.node;
+ }
+
+ obj_desc->package.count = package_length;
+
+ /* Count the number of items in the package list */
+
+ package_list_length = 0;
+ arg = op->common.value.arg;
+ arg = arg->common.next;
+ while (arg) {
+ package_list_length++;
+ arg = arg->common.next;
+ }
+
+ /*
+ * The package length (number of elements) will be the greater
+ * of the specified length and the length of the initializer list
+ */
+ if (package_list_length > package_length) {
+ obj_desc->package.count = package_list_length;
+ }
+
+ /*
+ * Allocate the pointer array (array of pointers to the
+ * individual objects). Add an extra pointer slot so
+ * that the list is always null terminated.
+ */
+ obj_desc->package.elements = ACPI_MEM_CALLOCATE (
+ ((acpi_size) obj_desc->package.count + 1) * sizeof (void *));
+
+ if (!obj_desc->package.elements) {
+ acpi_ut_delete_object_desc (obj_desc);
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /*
+ * Now init the elements of the package
+ */
+ i = 0;
+ arg = op->common.value.arg;
+ arg = arg->common.next;
+ while (arg) {
+ if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
+ /* Object (package or buffer) is already built */
+
+ obj_desc->package.elements[i] = ACPI_CAST_PTR (union acpi_operand_object, arg->common.node);
+ }
+ else {
+ status = acpi_ds_build_internal_object (walk_state, arg,
+ &obj_desc->package.elements[i]);
+ }
+
+ i++;
+ arg = arg->common.next;
+ }
+
+ obj_desc->package.flags |= AOPOBJ_DATA_VALID;
+ op->common.node = (struct acpi_namespace_node *) obj_desc;
+ return_ACPI_STATUS (status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_node
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Node - NS Node to be initialized
+ * Op - Parser object to be translated
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create the object to be associated with a namespace node
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ds_create_node (
+ struct acpi_walk_state *walk_state,
+ struct acpi_namespace_node *node,
+ union acpi_parse_object *op)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+
+
+ ACPI_FUNCTION_TRACE_PTR ("ds_create_node", op);
+
+
+ /*
+ * Because of the execution pass through the non-control-method
+ * parts of the table, we can arrive here twice. Only init
+ * the named object node the first time through
+ */
+ if (acpi_ns_get_attached_object (node)) {
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ if (!op->common.value.arg) {
+ /* No arguments, there is nothing to do */
+
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Build an internal object for the argument(s) */
+
+ status = acpi_ds_build_internal_object (walk_state, op->common.value.arg, &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ /* Re-type the object according to its argument */
+
+ node->type = ACPI_GET_OBJECT_TYPE (obj_desc);
+
+ /* Attach obj to node */
+
+ status = acpi_ns_attach_object (node, obj_desc, node->type);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference (obj_desc);
+ return_ACPI_STATUS (status);
+}
+
+#endif /* ACPI_NO_METHOD_EXECUTION */
+
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_object_from_op
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser op used to init the internal object
+ * Opcode - AML opcode associated with the object
+ * ret_obj_desc - Namespace object to be initialized
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize a namespace object from a parser Op and its
+ * associated arguments. The namespace object is a more compact
+ * representation of the Op and its arguments.
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ds_init_object_from_op (
+ struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ u16 opcode,
+ union acpi_operand_object **ret_obj_desc)
+{
+ const struct acpi_opcode_info *op_info;
+ union acpi_operand_object *obj_desc;
+ acpi_status status = AE_OK;
+
+
+ ACPI_FUNCTION_TRACE ("ds_init_object_from_op");
+
+
+ obj_desc = *ret_obj_desc;
+ op_info = acpi_ps_get_opcode_info (opcode);
+ if (op_info->class == AML_CLASS_UNKNOWN) {
+ /* Unknown opcode */
+
+ return_ACPI_STATUS (AE_TYPE);
+ }
+
+ /* Perform per-object initialization */
+
+ switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
+ case ACPI_TYPE_BUFFER:
+
+ /*
+ * Defer evaluation of Buffer term_arg operand
+ */
+ obj_desc->buffer.node = (struct acpi_namespace_node *) walk_state->operands[0];
+ obj_desc->buffer.aml_start = op->named.data;
+ obj_desc->buffer.aml_length = op->named.length;
+ break;
+
+
+ case ACPI_TYPE_PACKAGE:
+
+ /*
+ * Defer evaluation of Package term_arg operand
+ */
+ obj_desc->package.node = (struct acpi_namespace_node *) walk_state->operands[0];
+ obj_desc->package.aml_start = op->named.data;
+ obj_desc->package.aml_length = op->named.length;
+ break;
+
+
+ case ACPI_TYPE_INTEGER:
+
+ switch (op_info->type) {
+ case AML_TYPE_CONSTANT:
+ /*
+ * Resolve AML Constants here - AND ONLY HERE!
+ * All constants are integers.
+ * We mark the integer with a flag that indicates that it started life
+ * as a constant -- so that stores to constants will perform as expected (noop).
+ * (zero_op is used as a placeholder for optional target operands.)
+ */
+ obj_desc->common.flags = AOPOBJ_AML_CONSTANT;
+
+ switch (opcode) {
+ case AML_ZERO_OP:
+
+ obj_desc->integer.value = 0;
+ break;
+
+ case AML_ONE_OP:
+
+ obj_desc->integer.value = 1;
+ break;
+
+ case AML_ONES_OP:
+
+ obj_desc->integer.value = ACPI_INTEGER_MAX;
+
+ /* Truncate value if we are executing from a 32-bit ACPI table */
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+ acpi_ex_truncate_for32bit_table (obj_desc);
+#endif
+ break;
+
+ case AML_REVISION_OP:
+
+ obj_desc->integer.value = ACPI_CA_VERSION;
+ break;
+
+ default:
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown constant opcode %X\n", opcode));
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+ break;
+
+
+ case AML_TYPE_LITERAL:
+
+ obj_desc->integer.value = op->common.value.integer;
+ break;
+
+
+ default:
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Integer type %X\n", op_info->type));
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+ break;
+
+
+ case ACPI_TYPE_STRING:
+
+ obj_desc->string.pointer = op->common.value.string;
+ obj_desc->string.length = (u32) ACPI_STRLEN (op->common.value.string);
+
+ /*
+ * The string is contained in the ACPI table, don't ever try
+ * to delete it
+ */
+ obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
+ break;
+
+
+ case ACPI_TYPE_METHOD:
+ break;
+
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ switch (op_info->type) {
+ case AML_TYPE_LOCAL_VARIABLE:
+
+ /* Split the opcode into a base opcode + offset */
+
+ obj_desc->reference.opcode = AML_LOCAL_OP;
+ obj_desc->reference.offset = opcode - AML_LOCAL_OP;
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+ status = acpi_ds_method_data_get_node (AML_LOCAL_OP, obj_desc->reference.offset,
+ walk_state, (struct acpi_namespace_node **) &obj_desc->reference.object);
+#endif
+ break;
+
+
+ case AML_TYPE_METHOD_ARGUMENT:
+
+ /* Split the opcode into a base opcode + offset */
+
+ obj_desc->reference.opcode = AML_ARG_OP;
+ obj_desc->reference.offset = opcode - AML_ARG_OP;
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+ status = acpi_ds_method_data_get_node (AML_ARG_OP, obj_desc->reference.offset,
+ walk_state, (struct acpi_namespace_node **) &obj_desc->reference.object);
+#endif
+ break;
+
+ default: /* Other literals, etc.. */
+
+ if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+ /* Node was saved in Op */
+
+ obj_desc->reference.node = op->common.node;
+ }
+
+ obj_desc->reference.opcode = opcode;
+ break;
+ }
+ break;
+
+
+ default:
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unimplemented data type: %X\n",
+ ACPI_GET_OBJECT_TYPE (obj_desc)));
+
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+