1 /******************************************************************************
3 * Name: acpiosxf.h - All interfaces to the OS Services Layer (OSL). These
4 * interfaces must be implemented by OSL to interface the
5 * ACPI components to the host operating system.
7 *****************************************************************************/
10 * Copyright (C) 2000 - 2013, Intel Corp.
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22 * including a substantially similar Disclaimer requirement for further
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25 * of any contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
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46 #ifndef __ACPIOSXF_H__
47 #define __ACPIOSXF_H__
49 #include <acpi/platform/acenv.h>
50 #include <acpi/actypes.h>
52 /* Types for acpi_os_execute */
55 OSL_GLOBAL_LOCK_HANDLER,
63 #define ACPI_NO_UNIT_LIMIT ((u32) -1)
64 #define ACPI_MUTEX_SEM 1
66 /* Functions for acpi_os_signal */
68 #define ACPI_SIGNAL_FATAL 0
69 #define ACPI_SIGNAL_BREAKPOINT 1
71 struct acpi_signal_fatal_info {
78 * OSL Initialization and shutdown primitives
80 acpi_status __init acpi_os_initialize(void);
82 acpi_status acpi_os_terminate(void);
85 * ACPI Table interfaces
87 acpi_physical_address acpi_os_get_root_pointer(void);
90 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
91 acpi_string * new_val);
94 acpi_os_table_override(struct acpi_table_header *existing_table,
95 struct acpi_table_header **new_table);
98 acpi_os_physical_table_override(struct acpi_table_header *existing_table,
99 acpi_physical_address * new_address,
100 u32 *new_table_length);
103 * Spinlock primitives
105 #ifndef acpi_os_create_lock
106 acpi_status acpi_os_create_lock(acpi_spinlock * out_handle);
109 void acpi_os_delete_lock(acpi_spinlock handle);
111 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
113 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
116 * Semaphore primitives
119 acpi_os_create_semaphore(u32 max_units,
120 u32 initial_units, acpi_semaphore * out_handle);
122 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
125 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
127 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
130 * Mutex primitives. May be configured to use semaphores instead via
131 * ACPI_MUTEX_TYPE (see platform/acenv.h)
133 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
135 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
137 void acpi_os_delete_mutex(acpi_mutex handle);
139 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
141 void acpi_os_release_mutex(acpi_mutex handle);
145 * Memory allocation and mapping
147 void *acpi_os_allocate(acpi_size size);
149 void acpi_os_free(void *memory);
151 void __iomem *acpi_os_map_memory(acpi_physical_address where,
154 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
155 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
157 #ifdef ACPI_FUTURE_USAGE
159 acpi_os_get_physical_address(void *logical_address,
160 acpi_physical_address * physical_address);
164 * Memory/Object Cache
167 acpi_os_create_cache(char *cache_name,
169 u16 max_depth, acpi_cache_t ** return_cache);
171 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
173 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
175 void *acpi_os_acquire_object(acpi_cache_t * cache);
177 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
183 acpi_os_install_interrupt_handler(u32 interrupt_number,
184 acpi_osd_handler service_routine,
188 acpi_os_remove_interrupt_handler(u32 interrupt_number,
189 acpi_osd_handler service_routine);
191 void acpi_os_gpe_count(u32 gpe_number);
192 void acpi_os_fixed_event_count(u32 fixed_event_number);
195 * Threads and Scheduling
197 acpi_thread_id acpi_os_get_thread_id(void);
200 acpi_os_execute(acpi_execute_type type,
201 acpi_osd_exec_callback function, void *context);
204 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
206 void acpi_os_wait_events_complete(void);
208 void acpi_os_sleep(u64 milliseconds);
210 void acpi_os_stall(u32 microseconds);
213 * Platform and hardware-independent I/O interfaces
215 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
217 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
220 * Platform and hardware-independent physical memory interfaces
223 acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width);
226 acpi_os_write_memory(acpi_physical_address address, u64 value, u32 width);
229 * Platform and hardware-independent PCI configuration space access
230 * Note: Can't use "Register" as a parameter, changed to "Reg" --
231 * certain compilers complain.
234 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
235 u32 reg, u64 *value, u32 width);
238 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
239 u32 reg, u64 value, u32 width);
244 u64 acpi_os_get_timer(void);
246 acpi_status acpi_os_signal(u32 function, void *info);
249 * Debug print routines
251 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
253 void acpi_os_vprintf(const char *format, va_list args);
255 void acpi_os_redirect_output(void *destination);
257 #ifdef ACPI_FUTURE_USAGE
261 u32 acpi_os_get_line(char *buffer);
265 * Directory manipulation
267 void *acpi_os_open_directory(char *pathname,
268 char *wildcard_spec, char requested_file_type);
270 /* requeste_file_type values */
272 #define REQUEST_FILE_ONLY 0
273 #define REQUEST_DIR_ONLY 1
275 char *acpi_os_get_next_filename(void *dir_handle);
277 void acpi_os_close_directory(void *dir_handle);
279 #endif /* __ACPIOSXF_H__ */