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 - 2007, 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
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44 * POSSIBILITY OF SUCH DAMAGES.
47 #ifndef __ACPIOSXF_H__
48 #define __ACPIOSXF_H__
50 #include "platform/acenv.h"
53 /* Types for acpi_os_execute */
56 OSL_GLOBAL_LOCK_HANDLER,
64 #define ACPI_NO_UNIT_LIMIT ((u32) -1)
65 #define ACPI_MUTEX_SEM 1
67 /* Functions for acpi_os_signal */
69 #define ACPI_SIGNAL_FATAL 0
70 #define ACPI_SIGNAL_BREAKPOINT 1
72 struct acpi_signal_fatal_info {
79 * OSL Initialization and shutdown primitives
81 acpi_status acpi_os_initialize(void);
83 acpi_status acpi_os_terminate(void);
86 * ACPI Table interfaces
88 acpi_physical_address acpi_os_get_root_pointer(void);
91 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
92 acpi_string * new_val);
95 acpi_os_table_override(struct acpi_table_header *existing_table,
96 struct acpi_table_header **new_table);
101 acpi_status acpi_os_create_lock(acpi_spinlock * out_handle);
103 void acpi_os_delete_lock(acpi_spinlock handle);
105 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
107 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
110 * Semaphore primitives
113 acpi_os_create_semaphore(u32 max_units,
114 u32 initial_units, acpi_semaphore * out_handle);
116 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
119 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
121 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
126 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
128 void acpi_os_delete_mutex(acpi_mutex handle);
130 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
132 void acpi_os_release_mutex(acpi_mutex handle);
134 /* Temporary macros for Mutex* interfaces, map to existing semaphore xfaces */
136 #define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle)
137 #define acpi_os_delete_mutex(handle) (void) acpi_os_delete_semaphore (handle)
138 #define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time)
139 #define acpi_os_release_mutex(handle) (void) acpi_os_signal_semaphore (handle, 1)
142 * Memory allocation and mapping
144 void *acpi_os_allocate(acpi_size size);
146 void __iomem *acpi_os_map_memory(acpi_physical_address where, acpi_native_uint length);
148 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
150 #ifdef ACPI_FUTURE_USAGE
152 acpi_os_get_physical_address(void *logical_address,
153 acpi_physical_address * physical_address);
157 * Memory/Object Cache
160 acpi_os_create_cache(char *cache_name,
162 u16 max_depth, acpi_cache_t ** return_cache);
164 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
166 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
168 void *acpi_os_acquire_object(acpi_cache_t * cache);
170 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
176 acpi_os_install_interrupt_handler(u32 gsi,
177 acpi_osd_handler service_routine,
181 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
184 * Threads and Scheduling
186 acpi_thread_id acpi_os_get_thread_id(void);
189 acpi_os_execute(acpi_execute_type type,
190 acpi_osd_exec_callback function, void *context);
192 void acpi_os_wait_events_complete(void *context);
194 void acpi_os_sleep(acpi_integer milliseconds);
196 void acpi_os_stall(u32 microseconds);
199 * Platform and hardware-independent I/O interfaces
201 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
203 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
206 * Platform and hardware-independent physical memory interfaces
209 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
212 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
215 * Platform and hardware-independent PCI configuration space access
216 * Note: Can't use "Register" as a parameter, changed to "Reg" --
217 * certain compilers complain.
220 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
221 u32 reg, void *value, u32 width);
224 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
225 u32 reg, acpi_integer value, u32 width);
228 * Interim function needed for PCI IRQ routing
231 acpi_os_derive_pci_id(acpi_handle rhandle,
232 acpi_handle chandle, struct acpi_pci_id **pci_id);
237 acpi_status acpi_os_validate_interface(char *interface);
240 acpi_os_validate_address(u8 space_id,
241 acpi_physical_address address, acpi_size length);
243 u64 acpi_os_get_timer(void);
245 acpi_status acpi_os_signal(u32 function, void *info);
248 * Debug print routines
250 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
252 void acpi_os_vprintf(const char *format, va_list args);
254 void acpi_os_redirect_output(void *destination);
256 #ifdef ACPI_FUTURE_USAGE
260 u32 acpi_os_get_line(char *buffer);
264 * Directory manipulation
266 void *acpi_os_open_directory(char *pathname,
267 char *wildcard_spec, char requested_file_type);
269 /* requeste_file_type values */
271 #define REQUEST_FILE_ONLY 0
272 #define REQUEST_DIR_ONLY 1
274 char *acpi_os_get_next_filename(void *dir_handle);
276 void acpi_os_close_directory(void *dir_handle);
278 #endif /* __ACPIOSXF_H__ */