text: 
  /******************************************************************************
   *
   * Name: acpixf.h - External interfaces to the ACPI subsystem
   *
   *****************************************************************************/
  
  /*
   * Copyright (C) 2000 - 2006, 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 __ACXFACE_H__
  #define __ACXFACE_H__
  
  #include "actypes.h"
  #include "actbl.h"
  
  /*
   * Global interfaces
   */
  acpi_status acpi_initialize_subsystem(void);
  
  acpi_status acpi_enable_subsystem(u32 flags);
  
  acpi_status acpi_initialize_objects(u32 flags);
  
  acpi_status acpi_terminate(void);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status acpi_subsystem_status(void);
  #endif
  
  acpi_status acpi_enable(void);
  
  acpi_status acpi_disable(void);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status acpi_get_system_info(struct acpi_buffer *ret_buffer);
  #endif
  
  const char *acpi_format_exception(acpi_status exception);
  
  acpi_status acpi_purge_cached_objects(void);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status
  acpi_install_initialization_handler(acpi_init_handler handler, u32 function);
  #endif
  
  /*
   * ACPI Memory managment
   */
  void *acpi_allocate(u32 size);
  
  void *acpi_callocate(u32 size);
  
  void acpi_free(void *address);
  
  /*
   * ACPI table manipulation interfaces
   */
  acpi_status
  acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address);
  
  acpi_status acpi_load_tables(void);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status acpi_load_table(struct acpi_table_header *table_ptr);
  
  acpi_status acpi_unload_table(acpi_table_type table_type);
  
  acpi_status
  acpi_get_table_header(acpi_table_type table_type,
  		      u32 instance, struct acpi_table_header *out_table_header);
  #endif				/*  ACPI_FUTURE_USAGE  */
  
  acpi_status
  acpi_get_table(acpi_table_type table_type,
  	       u32 instance, struct acpi_buffer *ret_buffer);
  
  acpi_status
  acpi_get_firmware_table(acpi_string signature,
  			u32 instance,
  			u32 flags, struct acpi_table_header **table_pointer);
  
  /*
   * Namespace and name interfaces
   */
  acpi_status
  acpi_walk_namespace(acpi_object_type type,
  		    acpi_handle start_object,
  		    u32 max_depth,
  		    acpi_walk_callback user_function,
  		    void *context, void **return_value);
  
  acpi_status
  acpi_get_devices(char *HID,
  		 acpi_walk_callback user_function,
  		 void *context, void **return_value);
  
  acpi_status
  acpi_get_name(acpi_handle handle,
  	      u32 name_type, struct acpi_buffer *ret_path_ptr);
  
  acpi_status
  acpi_get_handle(acpi_handle parent,
  		acpi_string pathname, acpi_handle * ret_handle);
  
  acpi_status
  acpi_attach_data(acpi_handle obj_handle,
  		 acpi_object_handler handler, void *data);
  
  acpi_status
  acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler);
  
  acpi_status
  acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data);
  
  acpi_status
  acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags);
  
  /*
   * Object manipulation and enumeration
   */
  acpi_status
  acpi_evaluate_object(acpi_handle object,
  		     acpi_string pathname,
  		     struct acpi_object_list *parameter_objects,
  		     struct acpi_buffer *return_object_buffer);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status
  acpi_evaluate_object_typed(acpi_handle object,
  			   acpi_string pathname,
  			   struct acpi_object_list *external_params,
  			   struct acpi_buffer *return_buffer,
  			   acpi_object_type return_type);
  #endif
  
  acpi_status
  acpi_get_object_info(acpi_handle handle, struct acpi_buffer *return_buffer);
  
  acpi_status
  acpi_get_next_object(acpi_object_type type,
  		     acpi_handle parent,
  		     acpi_handle child, acpi_handle * out_handle);
  
  acpi_status acpi_get_type(acpi_handle object, acpi_object_type * out_type);
  
  acpi_status acpi_get_parent(acpi_handle object, acpi_handle * out_handle);
  
  /*
   * Event handler interfaces
   */
  acpi_status
  acpi_install_fixed_event_handler(u32 acpi_event,
  				 acpi_event_handler handler, void *context);
  
  acpi_status
  acpi_remove_fixed_event_handler(u32 acpi_event, acpi_event_handler handler);
  
  acpi_status
  acpi_install_notify_handler(acpi_handle device,
  			    u32 handler_type,
  			    acpi_notify_handler handler, void *context);
  
  acpi_status
  acpi_remove_notify_handler(acpi_handle device,
  			   u32 handler_type, acpi_notify_handler handler);
  
  acpi_status
  acpi_install_address_space_handler(acpi_handle device,
  				   acpi_adr_space_type space_id,
  				   acpi_adr_space_handler handler,
  				   acpi_adr_space_setup setup, void *context);
  
  acpi_status
  acpi_remove_address_space_handler(acpi_handle device,
  				  acpi_adr_space_type space_id,
  				  acpi_adr_space_handler handler);
  
  acpi_status
  acpi_install_gpe_handler(acpi_handle gpe_device,
  			 u32 gpe_number,
  			 u32 type, acpi_event_handler address, void *context);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status acpi_install_exception_handler(acpi_exception_handler handler);
  #endif
  
  /*
   * Event interfaces
   */
  acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle);
  
  acpi_status acpi_release_global_lock(u32 handle);
  
  acpi_status
  acpi_remove_gpe_handler(acpi_handle gpe_device,
  			u32 gpe_number, acpi_event_handler address);
  
  acpi_status acpi_enable_event(u32 event, u32 flags);
  
  acpi_status acpi_disable_event(u32 event, u32 flags);
  
  acpi_status acpi_clear_event(u32 event);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status);
  #endif				/*  ACPI_FUTURE_USAGE  */
  
  acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type);
  
  acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags);
  
  acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags);
  
  acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status
  acpi_get_gpe_status(acpi_handle gpe_device,
  		    u32 gpe_number,
  		    u32 flags, acpi_event_status * event_status);
  #endif				/*  ACPI_FUTURE_USAGE  */
  
  acpi_status
  acpi_install_gpe_block(acpi_handle gpe_device,
  		       struct acpi_generic_address *gpe_block_address,
  		       u32 register_count, u32 interrupt_number);
  
  acpi_status acpi_remove_gpe_block(acpi_handle gpe_device);
  
  /*
   * Resource interfaces
   */
  typedef
  acpi_status(*ACPI_WALK_RESOURCE_CALLBACK) (struct acpi_resource * resource,
  					   void *context);
  
  acpi_status
  acpi_get_vendor_resource(acpi_handle device_handle,
  			 char *name,
  			 struct acpi_vendor_uuid *uuid,
  			 struct acpi_buffer *ret_buffer);
  
  acpi_status
  acpi_get_current_resources(acpi_handle device_handle,
  			   struct acpi_buffer *ret_buffer);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status
  acpi_get_possible_resources(acpi_handle device_handle,
  			    struct acpi_buffer *ret_buffer);
  #endif
  
  acpi_status
  acpi_walk_resources(acpi_handle device_handle,
  		    char *name,
  		    ACPI_WALK_RESOURCE_CALLBACK user_function, void *context);
  
  acpi_status
  acpi_set_current_resources(acpi_handle device_handle,
  			   struct acpi_buffer *in_buffer);
  
  acpi_status
  acpi_get_irq_routing_table(acpi_handle bus_device_handle,
  			   struct acpi_buffer *ret_buffer);
  
  acpi_status
  acpi_resource_to_address64(struct acpi_resource *resource,
  			   struct acpi_resource_address64 *out);
  
  /*
   * Hardware (ACPI device) interfaces
   */
  acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags);
  
  acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags);
  
  acpi_status
  acpi_set_firmware_waking_vector(acpi_physical_address physical_address);
  
  #ifdef ACPI_FUTURE_USAGE
  acpi_status
  acpi_get_firmware_waking_vector(acpi_physical_address * physical_address);
  #endif
  
  acpi_status
  acpi_get_sleep_type_data(u8 sleep_state, u8 * slp_typ_a, u8 * slp_typ_b);
  
  acpi_status acpi_enter_sleep_state_prep(u8 sleep_state);
  
  acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state);
  
  acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void);
  
  acpi_status acpi_leave_sleep_state(u8 sleep_state);
  
  #endif				/* __ACXFACE_H__ */
  