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 *****************************************************************************/
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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 void acpi_os_delete_lock(acpi_spinlock handle);
103 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
105 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
108 * Semaphore primitives
111 acpi_os_create_semaphore(u32 max_units,
112 u32 initial_units, acpi_semaphore * out_handle);
114 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
117 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
119 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
122 * Mutex primitives. May be configured to use semaphores instead via
123 * ACPI_MUTEX_TYPE (see platform/acenv.h)
125 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
127 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
129 void acpi_os_delete_mutex(acpi_mutex handle);
131 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
133 void acpi_os_release_mutex(acpi_mutex handle);
137 * Memory allocation and mapping
139 void *acpi_os_allocate(acpi_size size);
141 void __iomem *acpi_os_map_memory(acpi_physical_address where,
144 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
145 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
147 #ifdef ACPI_FUTURE_USAGE
149 acpi_os_get_physical_address(void *logical_address,
150 acpi_physical_address * physical_address);
154 * Memory/Object Cache
157 acpi_os_create_cache(char *cache_name,
159 u16 max_depth, acpi_cache_t ** return_cache);
161 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
163 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
165 void *acpi_os_acquire_object(acpi_cache_t * cache);
167 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
173 acpi_os_install_interrupt_handler(u32 gsi,
174 acpi_osd_handler service_routine,
178 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
180 void acpi_os_gpe_count(u32 gpe_number);
181 void acpi_os_fixed_event_count(u32 fixed_event_number);
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);
193 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
195 void acpi_os_wait_events_complete(void *context);
197 void acpi_os_sleep(u64 milliseconds);
199 void acpi_os_stall(u32 microseconds);
202 * Platform and hardware-independent I/O interfaces
204 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
206 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
209 * Platform and hardware-independent physical memory interfaces
212 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
215 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
218 * Platform and hardware-independent PCI configuration space access
219 * Note: Can't use "Register" as a parameter, changed to "Reg" --
220 * certain compilers complain.
223 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
224 u32 reg, u64 *value, u32 width);
227 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
228 u32 reg, u64 value, u32 width);
234 acpi_os_validate_address(u8 space_id, acpi_physical_address address,
235 acpi_size length, char *name);
237 acpi_os_invalidate_address(u8 space_id, acpi_physical_address address,
240 u64 acpi_os_get_timer(void);
242 acpi_status acpi_os_signal(u32 function, void *info);
245 * Debug print routines
247 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
249 void acpi_os_vprintf(const char *format, va_list args);
251 void acpi_os_redirect_output(void *destination);
253 #ifdef ACPI_FUTURE_USAGE
257 u32 acpi_os_get_line(char *buffer);
261 * Directory manipulation
263 void *acpi_os_open_directory(char *pathname,
264 char *wildcard_spec, char requested_file_type);
266 /* requeste_file_type values */
268 #define REQUEST_FILE_ONLY 0
269 #define REQUEST_DIR_ONLY 1
271 char *acpi_os_get_next_filename(void *dir_handle);
273 void acpi_os_close_directory(void *dir_handle);
275 #endif /* __ACPIOSXF_H__ */