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1
2 /******************************************************************************
3  *
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.
7  *
8  *****************************************************************************/
9
10 /*
11  * Copyright (C) 2000 - 2011, Intel Corp.
12  * All rights reserved.
13  *
14  * Redistribution and use in source and binary forms, with or without
15  * modification, are permitted provided that the following conditions
16  * are met:
17  * 1. Redistributions of source code must retain the above copyright
18  *    notice, this list of conditions, and the following disclaimer,
19  *    without modification.
20  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
21  *    substantially similar to the "NO WARRANTY" disclaimer below
22  *    ("Disclaimer") and any redistribution must be conditioned upon
23  *    including a substantially similar Disclaimer requirement for further
24  *    binary redistribution.
25  * 3. Neither the names of the above-listed copyright holders nor the names
26  *    of any contributors may be used to endorse or promote products derived
27  *    from this software without specific prior written permission.
28  *
29  * Alternatively, this software may be distributed under the terms of the
30  * GNU General Public License ("GPL") version 2 as published by the Free
31  * Software Foundation.
32  *
33  * NO WARRANTY
34  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
35  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
36  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
37  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
38  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
42  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
43  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
44  * POSSIBILITY OF SUCH DAMAGES.
45  */
46
47 #ifndef __ACPIOSXF_H__
48 #define __ACPIOSXF_H__
49
50 #include "platform/acenv.h"
51 #include "actypes.h"
52
53 /* Types for acpi_os_execute */
54
55 typedef enum {
56         OSL_GLOBAL_LOCK_HANDLER,
57         OSL_NOTIFY_HANDLER,
58         OSL_GPE_HANDLER,
59         OSL_DEBUGGER_THREAD,
60         OSL_EC_POLL_HANDLER,
61         OSL_EC_BURST_HANDLER
62 } acpi_execute_type;
63
64 #define ACPI_NO_UNIT_LIMIT          ((u32) -1)
65 #define ACPI_MUTEX_SEM              1
66
67 /* Functions for acpi_os_signal */
68
69 #define ACPI_SIGNAL_FATAL           0
70 #define ACPI_SIGNAL_BREAKPOINT      1
71
72 struct acpi_signal_fatal_info {
73         u32 type;
74         u32 code;
75         u32 argument;
76 };
77
78 /*
79  * OSL Initialization and shutdown primitives
80  */
81 acpi_status __initdata acpi_os_initialize(void);
82
83 acpi_status acpi_os_terminate(void);
84
85 /*
86  * ACPI Table interfaces
87  */
88 acpi_physical_address acpi_os_get_root_pointer(void);
89
90 acpi_status
91 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
92                             acpi_string * new_val);
93
94 acpi_status
95 acpi_os_table_override(struct acpi_table_header *existing_table,
96                        struct acpi_table_header **new_table);
97
98 /*
99  * Spinlock primitives
100  */
101
102 #ifndef acpi_os_create_lock
103 acpi_status
104 acpi_os_create_lock(acpi_spinlock *out_handle);
105 #endif
106
107 void acpi_os_delete_lock(acpi_spinlock handle);
108
109 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
110
111 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
112
113 /*
114  * Semaphore primitives
115  */
116 acpi_status
117 acpi_os_create_semaphore(u32 max_units,
118                          u32 initial_units, acpi_semaphore * out_handle);
119
120 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
121
122 acpi_status
123 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
124
125 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
126
127 /*
128  * Mutex primitives. May be configured to use semaphores instead via
129  * ACPI_MUTEX_TYPE (see platform/acenv.h)
130  */
131 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
132
133 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
134
135 void acpi_os_delete_mutex(acpi_mutex handle);
136
137 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
138
139 void acpi_os_release_mutex(acpi_mutex handle);
140 #endif
141
142 /*
143  * Memory allocation and mapping
144  */
145 void *acpi_os_allocate(acpi_size size);
146
147 void __iomem *acpi_os_map_memory(acpi_physical_address where,
148                                 acpi_size length);
149
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);
152
153 #ifdef ACPI_FUTURE_USAGE
154 acpi_status
155 acpi_os_get_physical_address(void *logical_address,
156                              acpi_physical_address * physical_address);
157 #endif
158
159 /*
160  * Memory/Object Cache
161  */
162 acpi_status
163 acpi_os_create_cache(char *cache_name,
164                      u16 object_size,
165                      u16 max_depth, acpi_cache_t ** return_cache);
166
167 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
168
169 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
170
171 void *acpi_os_acquire_object(acpi_cache_t * cache);
172
173 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
174
175 /*
176  * Interrupt handlers
177  */
178 acpi_status
179 acpi_os_install_interrupt_handler(u32 gsi,
180                                   acpi_osd_handler service_routine,
181                                   void *context);
182
183 acpi_status
184 acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler service_routine);
185
186 void acpi_os_gpe_count(u32 gpe_number);
187 void acpi_os_fixed_event_count(u32 fixed_event_number);
188
189 /*
190  * Threads and Scheduling
191  */
192 acpi_thread_id acpi_os_get_thread_id(void);
193
194 acpi_status
195 acpi_os_execute(acpi_execute_type type,
196                 acpi_osd_exec_callback function, void *context);
197
198 acpi_status
199 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
200
201 void acpi_os_wait_events_complete(void *context);
202
203 void acpi_os_sleep(u64 milliseconds);
204
205 void acpi_os_stall(u32 microseconds);
206
207 /*
208  * Platform and hardware-independent I/O interfaces
209  */
210 acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
211
212 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
213
214 /*
215  * Platform and hardware-independent physical memory interfaces
216  */
217 acpi_status
218 acpi_os_read_memory(acpi_physical_address address, u32 * value, u32 width);
219
220 acpi_status
221 acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
222
223 /*
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.
227  */
228 acpi_status
229 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
230                                u32 reg, u64 *value, u32 width);
231
232 acpi_status
233 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
234                                 u32 reg, u64 value, u32 width);
235
236 /*
237  * Miscellaneous
238  */
239 acpi_status
240 acpi_os_validate_address(u8 space_id, acpi_physical_address address,
241                          acpi_size length, char *name);
242 acpi_status
243 acpi_os_invalidate_address(u8 space_id, acpi_physical_address address,
244                          acpi_size length);
245
246 u64 acpi_os_get_timer(void);
247
248 acpi_status acpi_os_signal(u32 function, void *info);
249
250 /*
251  * Debug print routines
252  */
253 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
254
255 void acpi_os_vprintf(const char *format, va_list args);
256
257 void acpi_os_redirect_output(void *destination);
258
259 #ifdef ACPI_FUTURE_USAGE
260 /*
261  * Debug input
262  */
263 u32 acpi_os_get_line(char *buffer);
264 #endif
265
266 /*
267  * Directory manipulation
268  */
269 void *acpi_os_open_directory(char *pathname,
270                              char *wildcard_spec, char requested_file_type);
271
272 /* requeste_file_type values */
273
274 #define REQUEST_FILE_ONLY                   0
275 #define REQUEST_DIR_ONLY                    1
276
277 char *acpi_os_get_next_filename(void *dir_handle);
278
279 void acpi_os_close_directory(void *dir_handle);
280
281 #endif                          /* __ACPIOSXF_H__ */