2 /******************************************************************************
4 * Name: acpiosxf.h - All interfaces to the OS Services Layer (OSL). These
5 * interfaces must be implemented by OSL to interface the
6 * ACPI components to the host operating system.
8 *****************************************************************************/
11 * Copyright (C) 2000 - 2006, R. Byron Moore
12 * All rights reserved.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions, and the following disclaimer,
19 * without modification.
20 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
21 * substantially similar to the "NO WARRANTY" disclaimer below
22 * ("Disclaimer") and any redistribution must be conditioned upon
23 * including a substantially similar Disclaimer requirement for further
24 * binary redistribution.
25 * 3. Neither the names of the above-listed copyright holders nor the names
26 * of any contributors may be used to endorse or promote products derived
27 * from this software without specific prior written permission.
29 * Alternatively, this software may be distributed under the terms of the
30 * GNU General Public License ("GPL") version 2 as published by the Free
31 * Software Foundation.
34 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
35 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
36 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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47 #ifndef __ACPIOSXF_H__
48 #define __ACPIOSXF_H__
50 #include "platform/acenv.h"
53 /* Priorities for acpi_os_queue_for_execution */
55 #define OSD_PRIORITY_GPE 1
56 #define OSD_PRIORITY_HIGH 2
57 #define OSD_PRIORITY_MED 3
58 #define OSD_PRIORITY_LO 4
60 #define ACPI_NO_UNIT_LIMIT ((u32) -1)
61 #define ACPI_MUTEX_SEM 1
63 /* Functions for acpi_os_signal */
65 #define ACPI_SIGNAL_FATAL 0
66 #define ACPI_SIGNAL_BREAKPOINT 1
68 struct acpi_signal_fatal_info {
75 * OSL Initialization and shutdown primitives
77 acpi_status acpi_os_initialize(void);
79 acpi_status acpi_os_terminate(void);
82 * ACPI Table interfaces
84 acpi_status acpi_os_get_root_pointer(u32 flags, struct acpi_pointer *address);
87 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
88 acpi_string * new_val);
91 acpi_os_table_override(struct acpi_table_header *existing_table,
92 struct acpi_table_header **new_table);
95 * Synchronization primitives
98 acpi_os_create_semaphore(u32 max_units,
99 u32 initial_units, acpi_handle * out_handle);
101 acpi_status acpi_os_delete_semaphore(acpi_handle handle);
103 acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout);
105 acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units);
107 acpi_status acpi_os_create_lock(acpi_handle * out_handle);
109 void acpi_os_delete_lock(acpi_handle handle);
111 acpi_cpu_flags acpi_os_acquire_lock(acpi_handle handle);
113 void acpi_os_release_lock(acpi_handle handle, acpi_cpu_flags flags);
116 * Memory allocation and mapping
118 void *acpi_os_allocate(acpi_size size);
120 void acpi_os_free(void *memory);
123 acpi_os_map_memory(acpi_physical_address physical_address,
124 acpi_size size, void __iomem ** logical_address);
126 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
128 #ifdef ACPI_FUTURE_USAGE
130 acpi_os_get_physical_address(void *logical_address,
131 acpi_physical_address * physical_address);
135 * Memory/Object Cache
138 acpi_os_create_cache(char *cache_name,
140 u16 max_depth, acpi_cache_t ** return_cache);
142 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
144 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
146 void *acpi_os_acquire_object(acpi_cache_t * cache);
148 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
154 acpi_os_install_interrupt_handler(u32 gsi,
155 acpi_osd_handler service_routine,
159 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
162 * Threads and Scheduling
164 u32 acpi_os_get_thread_id(void);
167 acpi_os_queue_for_execution(u32 priority,
168 acpi_osd_exec_callback function, void *context);
170 void acpi_os_wait_events_complete(void *context);
172 void acpi_os_wait_events_complete(void *context);
174 void acpi_os_sleep(acpi_integer milliseconds);
176 void acpi_os_stall(u32 microseconds);
179 * Platform and hardware-independent I/O interfaces
181 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
183 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
186 * Platform and hardware-independent physical memory interfaces
189 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
192 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
195 * Platform and hardware-independent PCI configuration space access
196 * Note: Can't use "Register" as a parameter, changed to "Reg" --
197 * certain compilers complain.
200 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
201 u32 reg, void *value, u32 width);
204 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
205 u32 reg, acpi_integer value, u32 width);
208 * Interim function needed for PCI IRQ routing
211 acpi_os_derive_pci_id(acpi_handle rhandle,
212 acpi_handle chandle, struct acpi_pci_id **pci_id);
217 u8 acpi_os_readable(void *pointer, acpi_size length);
219 #ifdef ACPI_FUTURE_USAGE
220 u8 acpi_os_writable(void *pointer, acpi_size length);
223 u64 acpi_os_get_timer(void);
225 acpi_status acpi_os_signal(u32 function, void *info);
228 * Debug print routines
230 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
232 void acpi_os_vprintf(const char *format, va_list args);
234 void acpi_os_redirect_output(void *destination);
236 #ifdef ACPI_FUTURE_USAGE
240 u32 acpi_os_get_line(char *buffer);
244 * Directory manipulation
246 void *acpi_os_open_directory(char *pathname,
247 char *wildcard_spec, char requested_file_type);
249 /* requeste_file_type values */
251 #define REQUEST_FILE_ONLY 0
252 #define REQUEST_DIR_ONLY 1
254 char *acpi_os_get_next_filename(void *dir_handle);
256 void acpi_os_close_directory(void *dir_handle);
262 acpi_os_dbg_assert(void *failed_assertion,
263 void *file_name, u32 line_number, char *message);
265 #endif /* __ACPIOSXF_H__ */