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);
102 acpi_os_create_lock(acpi_spinlock *out_handle);
104 void acpi_os_delete_lock(acpi_spinlock handle);
106 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
108 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
111 * Semaphore primitives
114 acpi_os_create_semaphore(u32 max_units,
115 u32 initial_units, acpi_semaphore * out_handle);
117 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
120 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
122 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
125 * Mutex primitives. May be configured to use semaphores instead via
126 * ACPI_MUTEX_TYPE (see platform/acenv.h)
128 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
130 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
132 void acpi_os_delete_mutex(acpi_mutex handle);
134 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
136 void acpi_os_release_mutex(acpi_mutex handle);
140 * Memory allocation and mapping
142 void *acpi_os_allocate(acpi_size size);
144 void __iomem *acpi_os_map_memory(acpi_physical_address where,
147 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
148 void early_acpi_os_unmap_memory(void __iomem * virt, 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);
183 void acpi_os_gpe_count(u32 gpe_number);
184 void acpi_os_fixed_event_count(u32 fixed_event_number);
187 * Threads and Scheduling
189 acpi_thread_id acpi_os_get_thread_id(void);
192 acpi_os_execute(acpi_execute_type type,
193 acpi_osd_exec_callback function, void *context);
196 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
198 void acpi_os_wait_events_complete(void *context);
200 void acpi_os_sleep(u64 milliseconds);
202 void acpi_os_stall(u32 microseconds);
205 * Platform and hardware-independent I/O interfaces
207 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
209 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
212 * Platform and hardware-independent physical memory interfaces
215 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
218 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
221 * Platform and hardware-independent PCI configuration space access
222 * Note: Can't use "Register" as a parameter, changed to "Reg" --
223 * certain compilers complain.
226 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
227 u32 reg, u64 *value, u32 width);
230 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
231 u32 reg, u64 value, u32 width);
237 acpi_os_validate_address(u8 space_id, acpi_physical_address address,
238 acpi_size length, char *name);
240 acpi_os_invalidate_address(u8 space_id, acpi_physical_address address,
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__ */