diff --git a/include/acpi/acparser.h b/include/acpi/acparser.h
new file mode 100644
index 0000000..c0395ef
--- /dev/null
+++ b/include/acpi/acparser.h
@@ -0,0 +1,351 @@
+/******************************************************************************
+ *
+ * Module Name: acparser.h - AML Parser subcomponent prototypes and defines
+ *
+ *****************************************************************************/
+
+/*
+ * 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.
+ */
+
+
+#ifndef __ACPARSER_H__
+#define __ACPARSER_H__
+
+
+#define OP_HAS_RETURN_VALUE             1
+
+/* variable # arguments */
+
+#define ACPI_VAR_ARGS                   ACPI_UINT32_MAX
+
+
+#define ACPI_PARSE_DELETE_TREE          0x0001
+#define ACPI_PARSE_NO_TREE_DELETE       0x0000
+#define ACPI_PARSE_TREE_MASK            0x0001
+
+#define ACPI_PARSE_LOAD_PASS1           0x0010
+#define ACPI_PARSE_LOAD_PASS2           0x0020
+#define ACPI_PARSE_EXECUTE              0x0030
+#define ACPI_PARSE_MODE_MASK            0x0030
+
+#define ACPI_PARSE_DEFERRED_OP          0x0100
+
+/* Parser external interfaces */
+
+acpi_status
+acpi_psx_load_table (
+	u8                              *pcode_addr,
+	u32                             pcode_length);
+
+acpi_status
+acpi_psx_execute (
+	struct acpi_parameter_info      *info);
+
+
+/******************************************************************************
+ *
+ * Parser interfaces
+ *
+ *****************************************************************************/
+
+
+/* psargs - Parse AML opcode arguments */
+
+u8 *
+acpi_ps_get_next_package_end (
+	struct acpi_parse_state         *parser_state);
+
+u32
+acpi_ps_get_next_package_length (
+	struct acpi_parse_state         *parser_state);
+
+char *
+acpi_ps_get_next_namestring (
+	struct acpi_parse_state         *parser_state);
+
+void
+acpi_ps_get_next_simple_arg (
+	struct acpi_parse_state         *parser_state,
+	u32                             arg_type,
+	union acpi_parse_object         *arg);
+
+acpi_status
+acpi_ps_get_next_namepath (
+	struct acpi_walk_state          *walk_state,
+	struct acpi_parse_state         *parser_state,
+	union acpi_parse_object         *arg,
+	u8                              method_call);
+
+union acpi_parse_object *
+acpi_ps_get_next_field (
+	struct acpi_parse_state         *parser_state);
+
+acpi_status
+acpi_ps_get_next_arg (
+	struct acpi_walk_state          *walk_state,
+	struct acpi_parse_state         *parser_state,
+	u32                             arg_type,
+	union acpi_parse_object         **return_arg);
+
+
+/* psfind */
+
+union acpi_parse_object *
+acpi_ps_find_name (
+	union acpi_parse_object         *scope,
+	u32                             name,
+	u32                             opcode);
+
+union acpi_parse_object*
+acpi_ps_get_parent (
+	union acpi_parse_object         *op);
+
+
+/* psopcode - AML Opcode information */
+
+const struct acpi_opcode_info *
+acpi_ps_get_opcode_info (
+	u16                             opcode);
+
+char *
+acpi_ps_get_opcode_name (
+	u16                             opcode);
+
+
+/* psparse - top level parsing routines */
+
+u32
+acpi_ps_get_opcode_size (
+	u32                             opcode);
+
+void
+acpi_ps_complete_this_op (
+	struct acpi_walk_state          *walk_state,
+	union acpi_parse_object         *op);
+
+acpi_status
+acpi_ps_next_parse_state (
+	struct acpi_walk_state          *walk_state,
+	union acpi_parse_object         *op,
+	acpi_status                     callback_status);
+
+acpi_status
+acpi_ps_find_object (
+	struct acpi_walk_state          *walk_state,
+	union acpi_parse_object         **out_op);
+
+void
+acpi_ps_delete_parse_tree (
+	union acpi_parse_object         *root);
+
+acpi_status
+acpi_ps_parse_loop (
+	struct acpi_walk_state          *walk_state);
+
+acpi_status
+acpi_ps_parse_aml (
+	struct acpi_walk_state          *walk_state);
+
+acpi_status
+acpi_ps_parse_table (
+	u8                              *aml,
+	u32                             aml_size,
+	acpi_parse_downwards            descending_callback,
+	acpi_parse_upwards              ascending_callback,
+	union acpi_parse_object         **root_object);
+
+u16
+acpi_ps_peek_opcode (
+	struct acpi_parse_state         *state);
+
+
+/* psscope - Scope stack management routines */
+
+
+acpi_status
+acpi_ps_init_scope (
+	struct acpi_parse_state         *parser_state,
+	union acpi_parse_object         *root);
+
+union acpi_parse_object *
+acpi_ps_get_parent_scope (
+	struct acpi_parse_state         *state);
+
+u8
+acpi_ps_has_completed_scope (
+	struct acpi_parse_state         *parser_state);
+
+void
+acpi_ps_pop_scope (
+	struct acpi_parse_state         *parser_state,
+	union acpi_parse_object         **op,
+	u32                             *arg_list,
+	u32                             *arg_count);
+
+acpi_status
+acpi_ps_push_scope (
+	struct acpi_parse_state         *parser_state,
+	union acpi_parse_object         *op,
+	u32                             remaining_args,
+	u32                             arg_count);
+
+void
+acpi_ps_cleanup_scope (
+	struct acpi_parse_state         *state);
+
+
+/* pstree - parse tree manipulation routines */
+
+void
+acpi_ps_append_arg(
+	union acpi_parse_object         *op,
+	union acpi_parse_object         *arg);
+
+union acpi_parse_object*
+acpi_ps_find (
+	union acpi_parse_object         *scope,
+	char                            *path,
+	u16                             opcode,
+	u32                             create);
+
+union acpi_parse_object *
+acpi_ps_get_arg(
+	union acpi_parse_object         *op,
+	u32                              argn);
+
+#ifdef ACPI_FUTURE_USAGE
+union acpi_parse_object *
+acpi_ps_get_child (
+	union acpi_parse_object         *op);
+
+union acpi_parse_object *
+acpi_ps_get_depth_next (
+	union acpi_parse_object         *origin,
+	union acpi_parse_object         *op);
+#endif  /*  ACPI_FUTURE_USAGE  */
+
+
+/* pswalk - parse tree walk routines */
+
+acpi_status
+acpi_ps_walk_parsed_aml (
+	union acpi_parse_object         *start_op,
+	union acpi_parse_object         *end_op,
+	union acpi_operand_object       *mth_desc,
+	struct acpi_namespace_node      *start_node,
+	union acpi_operand_object       **params,
+	union acpi_operand_object       **caller_return_desc,
+	acpi_owner_id                   owner_id,
+	acpi_parse_downwards            descending_callback,
+	acpi_parse_upwards              ascending_callback);
+
+acpi_status
+acpi_ps_get_next_walk_op (
+	struct acpi_walk_state          *walk_state,
+	union acpi_parse_object         *op,
+	acpi_parse_upwards              ascending_callback);
+
+acpi_status
+acpi_ps_delete_completed_op (
+	struct acpi_walk_state          *walk_state);
+
+
+/* psutils - parser utilities */
+
+union acpi_parse_object *
+acpi_ps_create_scope_op (
+	void);
+
+void
+acpi_ps_init_op (
+	union acpi_parse_object         *op,
+	u16                             opcode);
+
+union acpi_parse_object *
+acpi_ps_alloc_op (
+	u16                             opcode);
+
+void
+acpi_ps_free_op (
+	union acpi_parse_object         *op);
+
+#ifdef ACPI_ENABLE_OBJECT_CACHE
+void
+acpi_ps_delete_parse_cache (
+	void);
+#endif
+
+u8
+acpi_ps_is_leading_char (
+	u32                             c);
+
+u8
+acpi_ps_is_prefix_char (
+	u32                             c);
+
+#ifdef ACPI_FUTURE_USAGE
+u32
+acpi_ps_get_name(
+	union acpi_parse_object         *op);
+#endif
+
+void
+acpi_ps_set_name(
+	union acpi_parse_object         *op,
+	u32                             name);
+
+
+/* psdump - display parser tree */
+
+u32
+acpi_ps_sprint_path (
+	char                            *buffer_start,
+	u32                             buffer_size,
+	union acpi_parse_object         *op);
+
+u32
+acpi_ps_sprint_op (
+	char                            *buffer_start,
+	u32                             buffer_size,
+	union acpi_parse_object         *op);
+
+void
+acpi_ps_show (
+	union acpi_parse_object         *op);
+
+
+#endif /* __ACPARSER_H__ */