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 - 2011, Intel Corp.
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26 * of any contributors may be used to endorse or promote products derived
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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 #ifndef acpi_os_create_lock
104 acpi_os_create_lock(acpi_spinlock *out_handle);
107 void acpi_os_delete_lock(acpi_spinlock handle);
109 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
111 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
114 * Semaphore primitives
117 acpi_os_create_semaphore(u32 max_units,
118 u32 initial_units, acpi_semaphore * out_handle);
120 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
123 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
125 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
128 * Mutex primitives. May be configured to use semaphores instead via
129 * ACPI_MUTEX_TYPE (see platform/acenv.h)
131 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
133 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
135 void acpi_os_delete_mutex(acpi_mutex handle);
137 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
139 void acpi_os_release_mutex(acpi_mutex handle);
143 * Memory allocation and mapping
145 void *acpi_os_allocate(acpi_size size);
147 void __iomem *acpi_os_map_memory(acpi_physical_address where,
150 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
151 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
153 #ifdef ACPI_FUTURE_USAGE
155 acpi_os_get_physical_address(void *logical_address,
156 acpi_physical_address * physical_address);
160 * Memory/Object Cache
163 acpi_os_create_cache(char *cache_name,
165 u16 max_depth, acpi_cache_t ** return_cache);
167 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
169 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
171 void *acpi_os_acquire_object(acpi_cache_t * cache);
173 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
179 acpi_os_install_interrupt_handler(u32 gsi,
180 acpi_osd_handler service_routine,
184 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
186 void acpi_os_gpe_count(u32 gpe_number);
187 void acpi_os_fixed_event_count(u32 fixed_event_number);
190 * Threads and Scheduling
192 acpi_thread_id acpi_os_get_thread_id(void);
195 acpi_os_execute(acpi_execute_type type,
196 acpi_osd_exec_callback function, void *context);
199 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
201 void acpi_os_wait_events_complete(void *context);
203 void acpi_os_sleep(u64 milliseconds);
205 void acpi_os_stall(u32 microseconds);
208 * Platform and hardware-independent I/O interfaces
210 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
212 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
215 * Platform and hardware-independent physical memory interfaces
218 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
221 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
224 * Platform and hardware-independent PCI configuration space access
225 * Note: Can't use "Register" as a parameter, changed to "Reg" --
226 * certain compilers complain.
229 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
230 u32 reg, u64 *value, u32 width);
233 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
234 u32 reg, u64 value, u32 width);
240 acpi_os_validate_address(u8 space_id, acpi_physical_address address,
241 acpi_size length, char *name);
243 acpi_os_invalidate_address(u8 space_id, acpi_physical_address address,
246 u64 acpi_os_get_timer(void);
248 acpi_status acpi_os_signal(u32 function, void *info);
251 * Debug print routines
253 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
255 void acpi_os_vprintf(const char *format, va_list args);
257 void acpi_os_redirect_output(void *destination);
259 #ifdef ACPI_FUTURE_USAGE
263 u32 acpi_os_get_line(char *buffer);
267 * Directory manipulation
269 void *acpi_os_open_directory(char *pathname,
270 char *wildcard_spec, char requested_file_type);
272 /* requeste_file_type values */
274 #define REQUEST_FILE_ONLY 0
275 #define REQUEST_DIR_ONLY 1
277 char *acpi_os_get_next_filename(void *dir_handle);
279 void acpi_os_close_directory(void *dir_handle);
281 #endif /* __ACPIOSXF_H__ */