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 - 2008, Intel Corp.
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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 __initdata 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);
124 * Mutex primitives. May be configured to use semaphores instead via
125 * ACPI_MUTEX_TYPE (see platform/acenv.h)
127 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
129 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
131 void acpi_os_delete_mutex(acpi_mutex handle);
133 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
135 void acpi_os_release_mutex(acpi_mutex handle);
139 * Memory allocation and mapping
141 void *acpi_os_allocate(acpi_size size);
143 void __iomem *acpi_os_map_memory(acpi_physical_address where,
146 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
148 #ifdef ACPI_FUTURE_USAGE
150 acpi_os_get_physical_address(void *logical_address,
151 acpi_physical_address * physical_address);
155 * Memory/Object Cache
158 acpi_os_create_cache(char *cache_name,
160 u16 max_depth, acpi_cache_t ** return_cache);
162 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
164 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
166 void *acpi_os_acquire_object(acpi_cache_t * cache);
168 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
174 acpi_os_install_interrupt_handler(u32 gsi,
175 acpi_osd_handler service_routine,
179 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
181 void acpi_os_gpe_count(u32 gpe_number);
182 void acpi_os_fixed_event_count(u32 fixed_event_number);
185 * Threads and Scheduling
187 acpi_thread_id acpi_os_get_thread_id(void);
190 acpi_os_execute(acpi_execute_type type,
191 acpi_osd_exec_callback function, void *context);
194 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
196 void acpi_os_wait_events_complete(void *context);
198 void acpi_os_sleep(acpi_integer milliseconds);
200 void acpi_os_stall(u32 microseconds);
203 * Platform and hardware-independent I/O interfaces
205 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
207 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
210 * Platform and hardware-independent physical memory interfaces
213 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
216 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
219 * Platform and hardware-independent PCI configuration space access
220 * Note: Can't use "Register" as a parameter, changed to "Reg" --
221 * certain compilers complain.
224 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
225 u32 reg, u32 *value, u32 width);
228 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
229 u32 reg, acpi_integer value, u32 width);
232 * Interim function needed for PCI IRQ routing
235 acpi_os_derive_pci_id(acpi_handle rhandle,
236 acpi_handle chandle, struct acpi_pci_id **pci_id);
241 acpi_status acpi_os_validate_interface(char *interface);
242 acpi_status acpi_osi_invalidate(char* interface);
245 acpi_os_validate_address(u8 space_id, acpi_physical_address address,
246 acpi_size length, char *name);
248 u64 acpi_os_get_timer(void);
250 acpi_status acpi_os_signal(u32 function, void *info);
253 * Debug print routines
255 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
257 void acpi_os_vprintf(const char *format, va_list args);
259 void acpi_os_redirect_output(void *destination);
261 #ifdef ACPI_FUTURE_USAGE
265 u32 acpi_os_get_line(char *buffer);
269 * Directory manipulation
271 void *acpi_os_open_directory(char *pathname,
272 char *wildcard_spec, char requested_file_type);
274 /* requeste_file_type values */
276 #define REQUEST_FILE_ONLY 0
277 #define REQUEST_DIR_ONLY 1
279 char *acpi_os_get_next_filename(void *dir_handle);
281 void acpi_os_close_directory(void *dir_handle);
283 #endif /* __ACPIOSXF_H__ */