xref: /openbmc/linux/include/acpi/actypes.h (revision e2f1cf25)
1 /******************************************************************************
2  *
3  * Name: actypes.h - Common data types for the entire ACPI subsystem
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2015, Intel Corp.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions, and the following disclaimer,
16  *    without modification.
17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18  *    substantially similar to the "NO WARRANTY" disclaimer below
19  *    ("Disclaimer") and any redistribution must be conditioned upon
20  *    including a substantially similar Disclaimer requirement for further
21  *    binary redistribution.
22  * 3. Neither the names of the above-listed copyright holders nor the names
23  *    of any contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * Alternatively, this software may be distributed under the terms of the
27  * GNU General Public License ("GPL") version 2 as published by the Free
28  * Software Foundation.
29  *
30  * NO WARRANTY
31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41  * POSSIBILITY OF SUCH DAMAGES.
42  */
43 
44 #ifndef __ACTYPES_H__
45 #define __ACTYPES_H__
46 
47 /* acpisrc:struct_defs -- for acpisrc conversion */
48 
49 /*
50  * ACPI_MACHINE_WIDTH must be specified in an OS- or compiler-dependent header
51  * and must be either 32 or 64. 16-bit ACPICA is no longer supported, as of
52  * 12/2006.
53  */
54 #ifndef ACPI_MACHINE_WIDTH
55 #error ACPI_MACHINE_WIDTH not defined
56 #endif
57 
58 /*
59  * Data type ranges
60  * Note: These macros are designed to be compiler independent as well as
61  * working around problems that some 32-bit compilers have with 64-bit
62  * constants.
63  */
64 #define ACPI_UINT8_MAX                  (u8) (~((u8)  0))	/* 0xFF               */
65 #define ACPI_UINT16_MAX                 (u16)(~((u16) 0))	/* 0xFFFF             */
66 #define ACPI_UINT32_MAX                 (u32)(~((u32) 0))	/* 0xFFFFFFFF         */
67 #define ACPI_UINT64_MAX                 (u64)(~((u64) 0))	/* 0xFFFFFFFFFFFFFFFF */
68 #define ACPI_ASCII_MAX                  0x7F
69 
70 /*
71  * Architecture-specific ACPICA Subsystem Data Types
72  *
73  * The goal of these types is to provide source code portability across
74  * 16-bit, 32-bit, and 64-bit targets.
75  *
76  * 1) The following types are of fixed size for all targets (16/32/64):
77  *
78  * u8           Logical boolean
79  *
80  * u8           8-bit  (1 byte) unsigned value
81  * u16          16-bit (2 byte) unsigned value
82  * u32          32-bit (4 byte) unsigned value
83  * u64          64-bit (8 byte) unsigned value
84  *
85  * s16          16-bit (2 byte) signed value
86  * s32          32-bit (4 byte) signed value
87  * s64          64-bit (8 byte) signed value
88  *
89  * COMPILER_DEPENDENT_UINT64/s64 - These types are defined in the
90  * compiler-dependent header(s) and were introduced because there is no common
91  * 64-bit integer type across the various compilation models, as shown in
92  * the table below.
93  *
94  * Datatype  LP64 ILP64 LLP64 ILP32 LP32 16bit
95  * char      8    8     8     8     8    8
96  * short     16   16    16    16    16   16
97  * _int32         32
98  * int       32   64    32    32    16   16
99  * long      64   64    32    32    32   32
100  * long long            64    64
101  * pointer   64   64    64    32    32   32
102  *
103  * Note: ILP64 and LP32 are currently not supported.
104  *
105  *
106  * 2) These types represent the native word size of the target mode of the
107  * processor, and may be 16-bit, 32-bit, or 64-bit as required. They are
108  * usually used for memory allocation, efficient loop counters, and array
109  * indexes. The types are similar to the size_t type in the C library and are
110  * required because there is no C type that consistently represents the native
111  * data width. acpi_size is needed because there is no guarantee that a
112  * kernel-level C library is present.
113  *
114  * acpi_size        16/32/64-bit unsigned value
115  * acpi_native_int  16/32/64-bit signed value
116  */
117 
118 /*******************************************************************************
119  *
120  * Common types for all compilers, all targets
121  *
122  ******************************************************************************/
123 
124 #ifndef ACPI_USE_SYSTEM_INTTYPES
125 
126 typedef unsigned char u8;
127 typedef unsigned short u16;
128 typedef short s16;
129 typedef COMPILER_DEPENDENT_UINT64 u64;
130 typedef COMPILER_DEPENDENT_INT64 s64;
131 
132 #endif				/* ACPI_USE_SYSTEM_INTTYPES */
133 
134 /*
135  * Value returned by acpi_os_get_thread_id. There is no standard "thread_id"
136  * across operating systems or even the various UNIX systems. Since ACPICA
137  * only needs the thread ID as a unique thread identifier, we use a u64
138  * as the only common data type - it will accommodate any type of pointer or
139  * any type of integer. It is up to the host-dependent OSL to cast the
140  * native thread ID type to a u64 (in acpi_os_get_thread_id).
141  */
142 #define acpi_thread_id                  u64
143 
144 /*******************************************************************************
145  *
146  * Types specific to 64-bit targets
147  *
148  ******************************************************************************/
149 
150 #if ACPI_MACHINE_WIDTH == 64
151 
152 #ifndef ACPI_USE_SYSTEM_INTTYPES
153 
154 typedef unsigned int u32;
155 typedef int s32;
156 
157 #endif				/* ACPI_USE_SYSTEM_INTTYPES */
158 
159 typedef s64 acpi_native_int;
160 
161 typedef u64 acpi_size;
162 typedef u64 acpi_io_address;
163 typedef u64 acpi_physical_address;
164 
165 #define ACPI_MAX_PTR                    ACPI_UINT64_MAX
166 #define ACPI_SIZE_MAX                   ACPI_UINT64_MAX
167 
168 #define ACPI_USE_NATIVE_DIVIDE	/* Has native 64-bit integer support */
169 
170 /*
171  * In the case of the Itanium Processor Family (IPF), the hardware does not
172  * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED flag
173  * to indicate that special precautions must be taken to avoid alignment faults.
174  * (IA64 or ia64 is currently used by existing compilers to indicate IPF.)
175  *
176  * Note: EM64T and other X86-64 processors support misaligned transfers,
177  * so there is no need to define this flag.
178  */
179 #if defined (__IA64__) || defined (__ia64__)
180 #define ACPI_MISALIGNMENT_NOT_SUPPORTED
181 #endif
182 
183 /*******************************************************************************
184  *
185  * Types specific to 32-bit targets
186  *
187  ******************************************************************************/
188 
189 #elif ACPI_MACHINE_WIDTH == 32
190 
191 #ifndef ACPI_USE_SYSTEM_INTTYPES
192 
193 typedef unsigned int u32;
194 typedef int s32;
195 
196 #endif				/* ACPI_USE_SYSTEM_INTTYPES */
197 
198 typedef s32 acpi_native_int;
199 
200 typedef u32 acpi_size;
201 
202 #ifdef ACPI_32BIT_PHYSICAL_ADDRESS
203 
204 /*
205  * OSPMs can define this to shrink the size of the structures for 32-bit
206  * none PAE environment. ASL compiler may always define this to generate
207  * 32-bit OSPM compliant tables.
208  */
209 typedef u32 acpi_io_address;
210 typedef u32 acpi_physical_address;
211 
212 #else				/* ACPI_32BIT_PHYSICAL_ADDRESS */
213 
214 /*
215  * It is reported that, after some calculations, the physical addresses can
216  * wrap over the 32-bit boundary on 32-bit PAE environment.
217  * https://bugzilla.kernel.org/show_bug.cgi?id=87971
218  */
219 typedef u64 acpi_io_address;
220 typedef u64 acpi_physical_address;
221 
222 #endif				/* ACPI_32BIT_PHYSICAL_ADDRESS */
223 
224 #define ACPI_MAX_PTR                    ACPI_UINT32_MAX
225 #define ACPI_SIZE_MAX                   ACPI_UINT32_MAX
226 
227 #else
228 
229 /* ACPI_MACHINE_WIDTH must be either 64 or 32 */
230 
231 #error unknown ACPI_MACHINE_WIDTH
232 #endif
233 
234 /*******************************************************************************
235  *
236  * OS-dependent types
237  *
238  * If the defaults below are not appropriate for the host system, they can
239  * be defined in the OS-specific header, and this will take precedence.
240  *
241  ******************************************************************************/
242 
243 /* Flags for acpi_os_acquire_lock/acpi_os_release_lock */
244 
245 #ifndef acpi_cpu_flags
246 #define acpi_cpu_flags			acpi_size
247 #endif
248 
249 /* Object returned from acpi_os_create_cache */
250 
251 #ifndef acpi_cache_t
252 #ifdef ACPI_USE_LOCAL_CACHE
253 #define acpi_cache_t                    struct acpi_memory_list
254 #else
255 #define acpi_cache_t                    void *
256 #endif
257 #endif
258 
259 /*
260  * Synchronization objects - Mutexes, Semaphores, and spin_locks
261  */
262 #if (ACPI_MUTEX_TYPE == ACPI_BINARY_SEMAPHORE)
263 /*
264  * These macros are used if the host OS does not support a mutex object.
265  * Map the OSL Mutex interfaces to binary semaphores.
266  */
267 #define acpi_mutex                      acpi_semaphore
268 #define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle)
269 #define acpi_os_delete_mutex(handle)    (void) acpi_os_delete_semaphore (handle)
270 #define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time)
271 #define acpi_os_release_mutex(handle)   (void) acpi_os_signal_semaphore (handle, 1)
272 #endif
273 
274 /* Configurable types for synchronization objects */
275 
276 #ifndef acpi_spinlock
277 #define acpi_spinlock                   void *
278 #endif
279 
280 #ifndef acpi_semaphore
281 #define acpi_semaphore                  void *
282 #endif
283 
284 #ifndef acpi_mutex
285 #define acpi_mutex                      void *
286 #endif
287 
288 /*******************************************************************************
289  *
290  * Compiler-dependent types
291  *
292  * If the defaults below are not appropriate for the host compiler, they can
293  * be defined in the compiler-specific header, and this will take precedence.
294  *
295  ******************************************************************************/
296 
297 /* Use C99 uintptr_t for pointer casting if available, "void *" otherwise */
298 
299 #ifndef acpi_uintptr_t
300 #define acpi_uintptr_t                  void *
301 #endif
302 
303 /*
304  * ACPI_PRINTF_LIKE is used to tag functions as "printf-like" because
305  * some compilers can catch printf format string problems
306  */
307 #ifndef ACPI_PRINTF_LIKE
308 #define ACPI_PRINTF_LIKE(c)
309 #endif
310 
311 /*
312  * Some compilers complain about unused variables. Sometimes we don't want to
313  * use all the variables (for example, _acpi_module_name). This allows us
314  * to tell the compiler in a per-variable manner that a variable
315  * is unused
316  */
317 #ifndef ACPI_UNUSED_VAR
318 #define ACPI_UNUSED_VAR
319 #endif
320 
321 /*
322  * All ACPICA external functions that are available to the rest of the kernel
323  * are tagged with thes macros which can be defined as appropriate for the host.
324  *
325  * Notes:
326  * ACPI_EXPORT_SYMBOL_INIT is used for initialization and termination
327  * interfaces that may need special processing.
328  * ACPI_EXPORT_SYMBOL is used for all other public external functions.
329  */
330 #ifndef ACPI_EXPORT_SYMBOL_INIT
331 #define ACPI_EXPORT_SYMBOL_INIT(symbol)
332 #endif
333 
334 #ifndef ACPI_EXPORT_SYMBOL
335 #define ACPI_EXPORT_SYMBOL(symbol)
336 #endif
337 
338 /*
339  * Compiler/Clibrary-dependent debug initialization. Used for ACPICA
340  * utilities only.
341  */
342 #ifndef ACPI_DEBUG_INITIALIZE
343 #define ACPI_DEBUG_INITIALIZE()
344 #endif
345 
346 /*******************************************************************************
347  *
348  * Configuration
349  *
350  ******************************************************************************/
351 
352 #ifdef ACPI_NO_MEM_ALLOCATIONS
353 
354 #define ACPI_ALLOCATE(a)                NULL
355 #define ACPI_ALLOCATE_ZEROED(a)         NULL
356 #define ACPI_FREE(a)
357 #define ACPI_MEM_TRACKING(a)
358 
359 #else				/* ACPI_NO_MEM_ALLOCATIONS */
360 
361 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
362 /*
363  * Memory allocation tracking (used by acpi_exec to detect memory leaks)
364  */
365 #define ACPI_MEM_PARAMETERS             _COMPONENT, _acpi_module_name, __LINE__
366 #define ACPI_ALLOCATE(a)                acpi_ut_allocate_and_track ((acpi_size) (a), ACPI_MEM_PARAMETERS)
367 #define ACPI_ALLOCATE_ZEROED(a)         acpi_ut_allocate_zeroed_and_track ((acpi_size) (a), ACPI_MEM_PARAMETERS)
368 #define ACPI_FREE(a)                    acpi_ut_free_and_track (a, ACPI_MEM_PARAMETERS)
369 #define ACPI_MEM_TRACKING(a)            a
370 
371 #else
372 /*
373  * Normal memory allocation directly via the OS services layer
374  */
375 #define ACPI_ALLOCATE(a)                acpi_os_allocate ((acpi_size) (a))
376 #define ACPI_ALLOCATE_ZEROED(a)         acpi_os_allocate_zeroed ((acpi_size) (a))
377 #define ACPI_FREE(a)                    acpi_os_free (a)
378 #define ACPI_MEM_TRACKING(a)
379 
380 #endif				/* ACPI_DBG_TRACK_ALLOCATIONS */
381 
382 #endif				/* ACPI_NO_MEM_ALLOCATIONS */
383 
384 /******************************************************************************
385  *
386  * ACPI Specification constants (Do not change unless the specification changes)
387  *
388  *****************************************************************************/
389 
390 /* Number of distinct FADT-based GPE register blocks (GPE0 and GPE1) */
391 
392 #define ACPI_MAX_GPE_BLOCKS             2
393 
394 /* Default ACPI register widths */
395 
396 #define ACPI_GPE_REGISTER_WIDTH         8
397 #define ACPI_PM1_REGISTER_WIDTH         16
398 #define ACPI_PM2_REGISTER_WIDTH         8
399 #define ACPI_PM_TIMER_WIDTH             32
400 #define ACPI_RESET_REGISTER_WIDTH       8
401 
402 /* Names within the namespace are 4 bytes long */
403 
404 #define ACPI_NAME_SIZE                  4
405 #define ACPI_PATH_SEGMENT_LENGTH        5	/* 4 chars for name + 1 char for separator */
406 #define ACPI_PATH_SEPARATOR             '.'
407 
408 /* Sizes for ACPI table headers */
409 
410 #define ACPI_OEM_ID_SIZE                6
411 #define ACPI_OEM_TABLE_ID_SIZE          8
412 
413 /* ACPI/PNP hardware IDs */
414 
415 #define PCI_ROOT_HID_STRING             "PNP0A03"
416 #define PCI_EXPRESS_ROOT_HID_STRING     "PNP0A08"
417 
418 /* PM Timer ticks per second (HZ) */
419 
420 #define ACPI_PM_TIMER_FREQUENCY         3579545
421 
422 /*******************************************************************************
423  *
424  * Independent types
425  *
426  ******************************************************************************/
427 
428 /* Logical defines and NULL */
429 
430 #ifdef FALSE
431 #undef FALSE
432 #endif
433 #define FALSE                           (1 == 0)
434 
435 #ifdef TRUE
436 #undef TRUE
437 #endif
438 #define TRUE                            (1 == 1)
439 
440 #ifndef NULL
441 #define NULL                            (void *) 0
442 #endif
443 
444 /*
445  * Miscellaneous types
446  */
447 typedef u32 acpi_status;	/* All ACPI Exceptions */
448 typedef u32 acpi_name;		/* 4-byte ACPI name */
449 typedef char *acpi_string;	/* Null terminated ASCII string */
450 typedef void *acpi_handle;	/* Actually a ptr to a NS Node */
451 
452 /* Time constants for timer calculations */
453 
454 #define ACPI_MSEC_PER_SEC               1000L
455 
456 #define ACPI_USEC_PER_MSEC              1000L
457 #define ACPI_USEC_PER_SEC               1000000L
458 
459 #define ACPI_100NSEC_PER_USEC           10L
460 #define ACPI_100NSEC_PER_MSEC           10000L
461 #define ACPI_100NSEC_PER_SEC            10000000L
462 
463 #define ACPI_NSEC_PER_USEC              1000L
464 #define ACPI_NSEC_PER_MSEC              1000000L
465 #define ACPI_NSEC_PER_SEC               1000000000L
466 
467 /* Owner IDs are used to track namespace nodes for selective deletion */
468 
469 typedef u8 acpi_owner_id;
470 #define ACPI_OWNER_ID_MAX               0xFF
471 
472 #define ACPI_INTEGER_BIT_SIZE           64
473 #define ACPI_MAX_DECIMAL_DIGITS         20	/* 2^64 = 18,446,744,073,709,551,616 */
474 #define ACPI_MAX64_DECIMAL_DIGITS       20
475 #define ACPI_MAX32_DECIMAL_DIGITS       10
476 #define ACPI_MAX16_DECIMAL_DIGITS        5
477 #define ACPI_MAX8_DECIMAL_DIGITS         3
478 
479 /*
480  * Constants with special meanings
481  */
482 #define ACPI_ROOT_OBJECT                ACPI_ADD_PTR (acpi_handle, NULL, ACPI_MAX_PTR)
483 #define ACPI_WAIT_FOREVER               0xFFFF	/* u16, as per ACPI spec */
484 #define ACPI_DO_NOT_WAIT                0
485 
486 /*
487  * Obsolete: Acpi integer width. In ACPI version 1 (1996), integers are 32 bits.
488  * In ACPI version 2 (2000) and later, integers are 64 bits. Note that this
489  * pertains to the ACPI integer type only, not to other integers used in the
490  * implementation of the ACPICA subsystem.
491  *
492  * 01/2010: This type is obsolete and has been removed from the entire ACPICA
493  * code base. It remains here for compatibility with device drivers that use
494  * the type. However, it will be removed in the future.
495  */
496 typedef u64 acpi_integer;
497 #define ACPI_INTEGER_MAX                ACPI_UINT64_MAX
498 
499 /*******************************************************************************
500  *
501  * Commonly used macros
502  *
503  ******************************************************************************/
504 
505 /* Data manipulation */
506 
507 #define ACPI_LOBYTE(integer)            ((u8)   (u16)(integer))
508 #define ACPI_HIBYTE(integer)            ((u8) (((u16)(integer)) >> 8))
509 #define ACPI_LOWORD(integer)            ((u16)  (u32)(integer))
510 #define ACPI_HIWORD(integer)            ((u16)(((u32)(integer)) >> 16))
511 #define ACPI_LODWORD(integer64)         ((u32)  (u64)(integer64))
512 #define ACPI_HIDWORD(integer64)         ((u32)(((u64)(integer64)) >> 32))
513 
514 #define ACPI_SET_BIT(target,bit)        ((target) |= (bit))
515 #define ACPI_CLEAR_BIT(target,bit)      ((target) &= ~(bit))
516 #define ACPI_MIN(a,b)                   (((a)<(b))?(a):(b))
517 #define ACPI_MAX(a,b)                   (((a)>(b))?(a):(b))
518 
519 /* Size calculation */
520 
521 #define ACPI_ARRAY_LENGTH(x)            (sizeof(x) / sizeof((x)[0]))
522 
523 /* Pointer manipulation */
524 
525 #define ACPI_CAST_PTR(t, p)             ((t *) (acpi_uintptr_t) (p))
526 #define ACPI_CAST_INDIRECT_PTR(t, p)    ((t **) (acpi_uintptr_t) (p))
527 #define ACPI_ADD_PTR(t, a, b)           ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8, (a)) + (acpi_size)(b)))
528 #define ACPI_SUB_PTR(t, a, b)           ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8, (a)) - (acpi_size)(b)))
529 #define ACPI_PTR_DIFF(a, b)             (acpi_size) (ACPI_CAST_PTR (u8, (a)) - ACPI_CAST_PTR (u8, (b)))
530 
531 /* Pointer/Integer type conversions */
532 
533 #define ACPI_TO_POINTER(i)              ACPI_ADD_PTR (void, (void *) NULL,(acpi_size) i)
534 #define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p, (void *) NULL)
535 #define ACPI_OFFSET(d, f)               ACPI_PTR_DIFF (&(((d *) 0)->f), (void *) NULL)
536 #define ACPI_PHYSADDR_TO_PTR(i)         ACPI_TO_POINTER(i)
537 #define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
538 
539 /* Optimizations for 4-character (32-bit) acpi_name manipulation */
540 
541 #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
542 #define ACPI_COMPARE_NAME(a,b)          (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b)))
543 #define ACPI_MOVE_NAME(dest,src)        (*ACPI_CAST_PTR (u32, (dest)) = *ACPI_CAST_PTR (u32, (src)))
544 #else
545 #define ACPI_COMPARE_NAME(a,b)          (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
546 #define ACPI_MOVE_NAME(dest,src)        (strncpy (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE))
547 #endif
548 
549 /* Support for the special RSDP signature (8 characters) */
550 
551 #define ACPI_VALIDATE_RSDP_SIG(a)       (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
552 #define ACPI_MAKE_RSDP_SIG(dest)        (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
553 
554 /*******************************************************************************
555  *
556  * Miscellaneous constants
557  *
558  ******************************************************************************/
559 
560 /*
561  * Initialization sequence
562  */
563 #define ACPI_FULL_INITIALIZATION        0x00
564 #define ACPI_NO_ADDRESS_SPACE_INIT      0x01
565 #define ACPI_NO_HARDWARE_INIT           0x02
566 #define ACPI_NO_EVENT_INIT              0x04
567 #define ACPI_NO_HANDLER_INIT            0x08
568 #define ACPI_NO_ACPI_ENABLE             0x10
569 #define ACPI_NO_DEVICE_INIT             0x20
570 #define ACPI_NO_OBJECT_INIT             0x40
571 #define ACPI_NO_FACS_INIT               0x80
572 
573 /*
574  * Initialization state
575  */
576 #define ACPI_SUBSYSTEM_INITIALIZE       0x01
577 #define ACPI_INITIALIZED_OK             0x02
578 
579 /*
580  * Power state values
581  */
582 #define ACPI_STATE_UNKNOWN              (u8) 0xFF
583 
584 #define ACPI_STATE_S0                   (u8) 0
585 #define ACPI_STATE_S1                   (u8) 1
586 #define ACPI_STATE_S2                   (u8) 2
587 #define ACPI_STATE_S3                   (u8) 3
588 #define ACPI_STATE_S4                   (u8) 4
589 #define ACPI_STATE_S5                   (u8) 5
590 #define ACPI_S_STATES_MAX               ACPI_STATE_S5
591 #define ACPI_S_STATE_COUNT              6
592 
593 #define ACPI_STATE_D0                   (u8) 0
594 #define ACPI_STATE_D1                   (u8) 1
595 #define ACPI_STATE_D2                   (u8) 2
596 #define ACPI_STATE_D3_HOT               (u8) 3
597 #define ACPI_STATE_D3                   (u8) 4
598 #define ACPI_STATE_D3_COLD              ACPI_STATE_D3
599 #define ACPI_D_STATES_MAX               ACPI_STATE_D3
600 #define ACPI_D_STATE_COUNT              5
601 
602 #define ACPI_STATE_C0                   (u8) 0
603 #define ACPI_STATE_C1                   (u8) 1
604 #define ACPI_STATE_C2                   (u8) 2
605 #define ACPI_STATE_C3                   (u8) 3
606 #define ACPI_C_STATES_MAX               ACPI_STATE_C3
607 #define ACPI_C_STATE_COUNT              4
608 
609 /*
610  * Sleep type invalid value
611  */
612 #define ACPI_SLEEP_TYPE_MAX             0x7
613 #define ACPI_SLEEP_TYPE_INVALID         0xFF
614 
615 /*
616  * Standard notify values
617  */
618 #define ACPI_NOTIFY_BUS_CHECK           (u8) 0x00
619 #define ACPI_NOTIFY_DEVICE_CHECK        (u8) 0x01
620 #define ACPI_NOTIFY_DEVICE_WAKE         (u8) 0x02
621 #define ACPI_NOTIFY_EJECT_REQUEST       (u8) 0x03
622 #define ACPI_NOTIFY_DEVICE_CHECK_LIGHT  (u8) 0x04
623 #define ACPI_NOTIFY_FREQUENCY_MISMATCH  (u8) 0x05
624 #define ACPI_NOTIFY_BUS_MODE_MISMATCH   (u8) 0x06
625 #define ACPI_NOTIFY_POWER_FAULT         (u8) 0x07
626 #define ACPI_NOTIFY_CAPABILITIES_CHECK  (u8) 0x08
627 #define ACPI_NOTIFY_DEVICE_PLD_CHECK    (u8) 0x09
628 #define ACPI_NOTIFY_RESERVED            (u8) 0x0A
629 #define ACPI_NOTIFY_LOCALITY_UPDATE     (u8) 0x0B
630 #define ACPI_NOTIFY_SHUTDOWN_REQUEST    (u8) 0x0C
631 #define ACPI_NOTIFY_AFFINITY_UPDATE     (u8) 0x0D
632 
633 #define ACPI_NOTIFY_MAX                 0x0D
634 
635 /*
636  * Types associated with ACPI names and objects. The first group of
637  * values (up to ACPI_TYPE_EXTERNAL_MAX) correspond to the definition
638  * of the ACPI object_type() operator (See the ACPI Spec). Therefore,
639  * only add to the first group if the spec changes.
640  *
641  * NOTE: Types must be kept in sync with the global acpi_ns_properties
642  * and acpi_ns_type_names arrays.
643  */
644 typedef u32 acpi_object_type;
645 
646 #define ACPI_TYPE_ANY                   0x00
647 #define ACPI_TYPE_INTEGER               0x01	/* Byte/Word/Dword/Zero/One/Ones */
648 #define ACPI_TYPE_STRING                0x02
649 #define ACPI_TYPE_BUFFER                0x03
650 #define ACPI_TYPE_PACKAGE               0x04	/* byte_const, multiple data_term/Constant/super_name */
651 #define ACPI_TYPE_FIELD_UNIT            0x05
652 #define ACPI_TYPE_DEVICE                0x06	/* Name, multiple Node */
653 #define ACPI_TYPE_EVENT                 0x07
654 #define ACPI_TYPE_METHOD                0x08	/* Name, byte_const, multiple Code */
655 #define ACPI_TYPE_MUTEX                 0x09
656 #define ACPI_TYPE_REGION                0x0A
657 #define ACPI_TYPE_POWER                 0x0B	/* Name,byte_const,word_const,multi Node */
658 #define ACPI_TYPE_PROCESSOR             0x0C	/* Name,byte_const,Dword_const,byte_const,multi nm_o */
659 #define ACPI_TYPE_THERMAL               0x0D	/* Name, multiple Node */
660 #define ACPI_TYPE_BUFFER_FIELD          0x0E
661 #define ACPI_TYPE_DDB_HANDLE            0x0F
662 #define ACPI_TYPE_DEBUG_OBJECT          0x10
663 
664 #define ACPI_TYPE_EXTERNAL_MAX          0x10
665 
666 /*
667  * These are object types that do not map directly to the ACPI
668  * object_type() operator. They are used for various internal purposes only.
669  * If new predefined ACPI_TYPEs are added (via the ACPI specification), these
670  * internal types must move upwards. (There is code that depends on these
671  * values being contiguous with the external types above.)
672  */
673 #define ACPI_TYPE_LOCAL_REGION_FIELD    0x11
674 #define ACPI_TYPE_LOCAL_BANK_FIELD      0x12
675 #define ACPI_TYPE_LOCAL_INDEX_FIELD     0x13
676 #define ACPI_TYPE_LOCAL_REFERENCE       0x14	/* Arg#, Local#, Name, Debug, ref_of, Index */
677 #define ACPI_TYPE_LOCAL_ALIAS           0x15
678 #define ACPI_TYPE_LOCAL_METHOD_ALIAS    0x16
679 #define ACPI_TYPE_LOCAL_NOTIFY          0x17
680 #define ACPI_TYPE_LOCAL_ADDRESS_HANDLER 0x18
681 #define ACPI_TYPE_LOCAL_RESOURCE        0x19
682 #define ACPI_TYPE_LOCAL_RESOURCE_FIELD  0x1A
683 #define ACPI_TYPE_LOCAL_SCOPE           0x1B	/* 1 Name, multiple object_list Nodes */
684 
685 #define ACPI_TYPE_NS_NODE_MAX           0x1B	/* Last typecode used within a NS Node */
686 
687 /*
688  * These are special object types that never appear in
689  * a Namespace node, only in an object of union acpi_operand_object
690  */
691 #define ACPI_TYPE_LOCAL_EXTRA           0x1C
692 #define ACPI_TYPE_LOCAL_DATA            0x1D
693 
694 #define ACPI_TYPE_LOCAL_MAX             0x1D
695 
696 /* All types above here are invalid */
697 
698 #define ACPI_TYPE_INVALID               0x1E
699 #define ACPI_TYPE_NOT_FOUND             0xFF
700 
701 #define ACPI_NUM_NS_TYPES               (ACPI_TYPE_INVALID + 1)
702 
703 /*
704  * All I/O
705  */
706 #define ACPI_READ                       0
707 #define ACPI_WRITE                      1
708 #define ACPI_IO_MASK                    1
709 
710 /*
711  * Event Types: Fixed & General Purpose
712  */
713 typedef u32 acpi_event_type;
714 
715 /*
716  * Fixed events
717  */
718 #define ACPI_EVENT_PMTIMER              0
719 #define ACPI_EVENT_GLOBAL               1
720 #define ACPI_EVENT_POWER_BUTTON         2
721 #define ACPI_EVENT_SLEEP_BUTTON         3
722 #define ACPI_EVENT_RTC                  4
723 #define ACPI_EVENT_MAX                  4
724 #define ACPI_NUM_FIXED_EVENTS           ACPI_EVENT_MAX + 1
725 
726 /*
727  * Event status - Per event
728  * -------------
729  * The encoding of acpi_event_status is illustrated below.
730  * Note that a set bit (1) indicates the property is TRUE
731  * (e.g. if bit 0 is set then the event is enabled).
732  * +-------------+-+-+-+-+-+
733  * |   Bits 31:5 |4|3|2|1|0|
734  * +-------------+-+-+-+-+-+
735  *          |     | | | | |
736  *          |     | | | | +- Enabled?
737  *          |     | | | +--- Enabled for wake?
738  *          |     | | +----- Status bit set?
739  *          |     | +------- Enable bit set?
740  *          |     +--------- Has a handler?
741  *          +--------------- <Reserved>
742  */
743 typedef u32 acpi_event_status;
744 
745 #define ACPI_EVENT_FLAG_DISABLED        (acpi_event_status) 0x00
746 #define ACPI_EVENT_FLAG_ENABLED         (acpi_event_status) 0x01
747 #define ACPI_EVENT_FLAG_WAKE_ENABLED    (acpi_event_status) 0x02
748 #define ACPI_EVENT_FLAG_STATUS_SET      (acpi_event_status) 0x04
749 #define ACPI_EVENT_FLAG_ENABLE_SET      (acpi_event_status) 0x08
750 #define ACPI_EVENT_FLAG_HAS_HANDLER     (acpi_event_status) 0x10
751 #define ACPI_EVENT_FLAG_SET             ACPI_EVENT_FLAG_STATUS_SET
752 
753 /* Actions for acpi_set_gpe, acpi_gpe_wakeup, acpi_hw_low_set_gpe */
754 
755 #define ACPI_GPE_ENABLE                 0
756 #define ACPI_GPE_DISABLE                1
757 #define ACPI_GPE_CONDITIONAL_ENABLE     2
758 
759 /*
760  * GPE info flags - Per GPE
761  * +-------+-+-+---+
762  * |  7:5  |4|3|2:0|
763  * +-------+-+-+---+
764  *     |    | |  |
765  *     |    | |  +-- Type of dispatch:to method, handler, notify, or none
766  *     |    | +----- Interrupt type: edge or level triggered
767  *     |    +------- Is a Wake GPE
768  *     +------------ <Reserved>
769  */
770 #define ACPI_GPE_DISPATCH_NONE          (u8) 0x00
771 #define ACPI_GPE_DISPATCH_METHOD        (u8) 0x01
772 #define ACPI_GPE_DISPATCH_HANDLER       (u8) 0x02
773 #define ACPI_GPE_DISPATCH_NOTIFY        (u8) 0x03
774 #define ACPI_GPE_DISPATCH_RAW_HANDLER   (u8) 0x04
775 #define ACPI_GPE_DISPATCH_MASK          (u8) 0x07
776 #define ACPI_GPE_DISPATCH_TYPE(flags)   ((u8) ((flags) & ACPI_GPE_DISPATCH_MASK))
777 
778 #define ACPI_GPE_LEVEL_TRIGGERED        (u8) 0x08
779 #define ACPI_GPE_EDGE_TRIGGERED         (u8) 0x00
780 #define ACPI_GPE_XRUPT_TYPE_MASK        (u8) 0x08
781 
782 #define ACPI_GPE_CAN_WAKE               (u8) 0x10
783 
784 /*
785  * Flags for GPE and Lock interfaces
786  */
787 #define ACPI_NOT_ISR                    0x1
788 #define ACPI_ISR                        0x0
789 
790 /* Notify types */
791 
792 #define ACPI_SYSTEM_NOTIFY              0x1
793 #define ACPI_DEVICE_NOTIFY              0x2
794 #define ACPI_ALL_NOTIFY                 (ACPI_SYSTEM_NOTIFY | ACPI_DEVICE_NOTIFY)
795 #define ACPI_MAX_NOTIFY_HANDLER_TYPE    0x3
796 #define ACPI_NUM_NOTIFY_TYPES           2
797 
798 #define ACPI_MAX_SYS_NOTIFY             0x7F
799 #define ACPI_MAX_DEVICE_SPECIFIC_NOTIFY 0xBF
800 
801 #define ACPI_SYSTEM_HANDLER_LIST        0	/* Used as index, must be SYSTEM_NOTIFY -1 */
802 #define ACPI_DEVICE_HANDLER_LIST        1	/* Used as index, must be DEVICE_NOTIFY -1 */
803 
804 /* Address Space (Operation Region) Types */
805 
806 typedef u8 acpi_adr_space_type;
807 
808 #define ACPI_ADR_SPACE_SYSTEM_MEMORY    (acpi_adr_space_type) 0
809 #define ACPI_ADR_SPACE_SYSTEM_IO        (acpi_adr_space_type) 1
810 #define ACPI_ADR_SPACE_PCI_CONFIG       (acpi_adr_space_type) 2
811 #define ACPI_ADR_SPACE_EC               (acpi_adr_space_type) 3
812 #define ACPI_ADR_SPACE_SMBUS            (acpi_adr_space_type) 4
813 #define ACPI_ADR_SPACE_CMOS             (acpi_adr_space_type) 5
814 #define ACPI_ADR_SPACE_PCI_BAR_TARGET   (acpi_adr_space_type) 6
815 #define ACPI_ADR_SPACE_IPMI             (acpi_adr_space_type) 7
816 #define ACPI_ADR_SPACE_GPIO             (acpi_adr_space_type) 8
817 #define ACPI_ADR_SPACE_GSBUS            (acpi_adr_space_type) 9
818 #define ACPI_ADR_SPACE_PLATFORM_COMM    (acpi_adr_space_type) 10
819 
820 #define ACPI_NUM_PREDEFINED_REGIONS     11
821 
822 /*
823  * Special Address Spaces
824  *
825  * Note: A Data Table region is a special type of operation region
826  * that has its own AML opcode. However, internally, the AML
827  * interpreter simply creates an operation region with an an address
828  * space type of ACPI_ADR_SPACE_DATA_TABLE.
829  */
830 #define ACPI_ADR_SPACE_DATA_TABLE       (acpi_adr_space_type) 0x7E	/* Internal to ACPICA only */
831 #define ACPI_ADR_SPACE_FIXED_HARDWARE   (acpi_adr_space_type) 0x7F
832 
833 /* Values for _REG connection code */
834 
835 #define ACPI_REG_DISCONNECT             0
836 #define ACPI_REG_CONNECT                1
837 
838 /*
839  * bit_register IDs
840  *
841  * These values are intended to be used by the hardware interfaces
842  * and are mapped to individual bitfields defined within the ACPI
843  * registers. See the acpi_gbl_bit_register_info global table in utglobal.c
844  * for this mapping.
845  */
846 
847 /* PM1 Status register */
848 
849 #define ACPI_BITREG_TIMER_STATUS                0x00
850 #define ACPI_BITREG_BUS_MASTER_STATUS           0x01
851 #define ACPI_BITREG_GLOBAL_LOCK_STATUS          0x02
852 #define ACPI_BITREG_POWER_BUTTON_STATUS         0x03
853 #define ACPI_BITREG_SLEEP_BUTTON_STATUS         0x04
854 #define ACPI_BITREG_RT_CLOCK_STATUS             0x05
855 #define ACPI_BITREG_WAKE_STATUS                 0x06
856 #define ACPI_BITREG_PCIEXP_WAKE_STATUS          0x07
857 
858 /* PM1 Enable register */
859 
860 #define ACPI_BITREG_TIMER_ENABLE                0x08
861 #define ACPI_BITREG_GLOBAL_LOCK_ENABLE          0x09
862 #define ACPI_BITREG_POWER_BUTTON_ENABLE         0x0A
863 #define ACPI_BITREG_SLEEP_BUTTON_ENABLE         0x0B
864 #define ACPI_BITREG_RT_CLOCK_ENABLE             0x0C
865 #define ACPI_BITREG_PCIEXP_WAKE_DISABLE         0x0D
866 
867 /* PM1 Control register */
868 
869 #define ACPI_BITREG_SCI_ENABLE                  0x0E
870 #define ACPI_BITREG_BUS_MASTER_RLD              0x0F
871 #define ACPI_BITREG_GLOBAL_LOCK_RELEASE         0x10
872 #define ACPI_BITREG_SLEEP_TYPE                  0x11
873 #define ACPI_BITREG_SLEEP_ENABLE                0x12
874 
875 /* PM2 Control register */
876 
877 #define ACPI_BITREG_ARB_DISABLE                 0x13
878 
879 #define ACPI_BITREG_MAX                         0x13
880 #define ACPI_NUM_BITREG                         ACPI_BITREG_MAX + 1
881 
882 /* Status register values. A 1 clears a status bit. 0 = no effect */
883 
884 #define ACPI_CLEAR_STATUS                       1
885 
886 /* Enable and Control register values */
887 
888 #define ACPI_ENABLE_EVENT                       1
889 #define ACPI_DISABLE_EVENT                      0
890 
891 /* Sleep function dispatch */
892 
893 typedef acpi_status(*acpi_sleep_function) (u8 sleep_state);
894 
895 struct acpi_sleep_functions {
896 	acpi_sleep_function legacy_function;
897 	acpi_sleep_function extended_function;
898 };
899 
900 /*
901  * External ACPI object definition
902  */
903 
904 /*
905  * Note: Type == ACPI_TYPE_ANY (0) is used to indicate a NULL package element
906  * or an unresolved named reference.
907  */
908 union acpi_object {
909 	acpi_object_type type;	/* See definition of acpi_ns_type for values */
910 	struct {
911 		acpi_object_type type;	/* ACPI_TYPE_INTEGER */
912 		u64 value;	/* The actual number */
913 	} integer;
914 
915 	struct {
916 		acpi_object_type type;	/* ACPI_TYPE_STRING */
917 		u32 length;	/* # of bytes in string, excluding trailing null */
918 		char *pointer;	/* points to the string value */
919 	} string;
920 
921 	struct {
922 		acpi_object_type type;	/* ACPI_TYPE_BUFFER */
923 		u32 length;	/* # of bytes in buffer */
924 		u8 *pointer;	/* points to the buffer */
925 	} buffer;
926 
927 	struct {
928 		acpi_object_type type;	/* ACPI_TYPE_PACKAGE */
929 		u32 count;	/* # of elements in package */
930 		union acpi_object *elements;	/* Pointer to an array of ACPI_OBJECTs */
931 	} package;
932 
933 	struct {
934 		acpi_object_type type;	/* ACPI_TYPE_LOCAL_REFERENCE */
935 		acpi_object_type actual_type;	/* Type associated with the Handle */
936 		acpi_handle handle;	/* object reference */
937 	} reference;
938 
939 	struct {
940 		acpi_object_type type;	/* ACPI_TYPE_PROCESSOR */
941 		u32 proc_id;
942 		acpi_io_address pblk_address;
943 		u32 pblk_length;
944 	} processor;
945 
946 	struct {
947 		acpi_object_type type;	/* ACPI_TYPE_POWER */
948 		u32 system_level;
949 		u32 resource_order;
950 	} power_resource;
951 };
952 
953 /*
954  * List of objects, used as a parameter list for control method evaluation
955  */
956 struct acpi_object_list {
957 	u32 count;
958 	union acpi_object *pointer;
959 };
960 
961 /*
962  * Miscellaneous common Data Structures used by the interfaces
963  */
964 #define ACPI_NO_BUFFER              0
965 
966 #ifdef ACPI_NO_MEM_ALLOCATIONS
967 
968 #define ACPI_ALLOCATE_BUFFER        (acpi_size) (0)
969 #define ACPI_ALLOCATE_LOCAL_BUFFER  (acpi_size) (0)
970 
971 #else				/* ACPI_NO_MEM_ALLOCATIONS */
972 
973 #define ACPI_ALLOCATE_BUFFER        (acpi_size) (-1)	/* Let ACPICA allocate buffer */
974 #define ACPI_ALLOCATE_LOCAL_BUFFER  (acpi_size) (-2)	/* For internal use only (enables tracking) */
975 
976 #endif				/* ACPI_NO_MEM_ALLOCATIONS */
977 
978 struct acpi_buffer {
979 	acpi_size length;	/* Length in bytes of the buffer */
980 	void *pointer;		/* pointer to buffer */
981 };
982 
983 /*
984  * name_type for acpi_get_name
985  */
986 #define ACPI_FULL_PATHNAME              0
987 #define ACPI_SINGLE_NAME                1
988 #define ACPI_NAME_TYPE_MAX              1
989 
990 /*
991  * Predefined Namespace items
992  */
993 struct acpi_predefined_names {
994 	char *name;
995 	u8 type;
996 	char *val;
997 };
998 
999 /*
1000  * Structure and flags for acpi_get_system_info
1001  */
1002 #define ACPI_SYS_MODE_UNKNOWN           0x0000
1003 #define ACPI_SYS_MODE_ACPI              0x0001
1004 #define ACPI_SYS_MODE_LEGACY            0x0002
1005 #define ACPI_SYS_MODES_MASK             0x0003
1006 
1007 /*
1008  * System info returned by acpi_get_system_info()
1009  */
1010 struct acpi_system_info {
1011 	u32 acpi_ca_version;
1012 	u32 flags;
1013 	u32 timer_resolution;
1014 	u32 reserved1;
1015 	u32 reserved2;
1016 	u32 debug_level;
1017 	u32 debug_layer;
1018 };
1019 
1020 /*
1021  * System statistics returned by acpi_get_statistics()
1022  */
1023 struct acpi_statistics {
1024 	u32 sci_count;
1025 	u32 gpe_count;
1026 	u32 fixed_event_count[ACPI_NUM_FIXED_EVENTS];
1027 	u32 method_count;
1028 };
1029 
1030 /* Table Event Types */
1031 
1032 #define ACPI_TABLE_EVENT_LOAD           0x0
1033 #define ACPI_TABLE_EVENT_UNLOAD         0x1
1034 #define ACPI_NUM_TABLE_EVENTS           2
1035 
1036 /*
1037  * Types specific to the OS service interfaces
1038  */
1039 typedef u32
1040  (ACPI_SYSTEM_XFACE * acpi_osd_handler) (void *context);
1041 
1042 typedef void
1043  (ACPI_SYSTEM_XFACE * acpi_osd_exec_callback) (void *context);
1044 
1045 /*
1046  * Various handlers and callback procedures
1047  */
1048 typedef
1049 u32 (*acpi_sci_handler) (void *context);
1050 
1051 typedef
1052 void (*acpi_gbl_event_handler) (u32 event_type,
1053 			       acpi_handle device,
1054 			       u32 event_number, void *context);
1055 
1056 #define ACPI_EVENT_TYPE_GPE         0
1057 #define ACPI_EVENT_TYPE_FIXED       1
1058 
1059 typedef
1060 u32(*acpi_event_handler) (void *context);
1061 
1062 typedef
1063 u32 (*acpi_gpe_handler) (acpi_handle gpe_device, u32 gpe_number, void *context);
1064 
1065 typedef
1066 void (*acpi_notify_handler) (acpi_handle device, u32 value, void *context);
1067 
1068 typedef
1069 void (*acpi_object_handler) (acpi_handle object, void *data);
1070 
1071 typedef acpi_status(*acpi_init_handler) (acpi_handle object, u32 function);
1072 
1073 #define ACPI_INIT_DEVICE_INI        1
1074 
1075 typedef
1076 acpi_status(*acpi_exception_handler) (acpi_status aml_status,
1077 				      acpi_name name,
1078 				      u16 opcode,
1079 				      u32 aml_offset, void *context);
1080 
1081 /* Table Event handler (Load, load_table, etc.) and types */
1082 
1083 typedef
1084 acpi_status(*acpi_table_handler) (u32 event, void *table, void *context);
1085 
1086 #define ACPI_TABLE_LOAD             0x0
1087 #define ACPI_TABLE_UNLOAD           0x1
1088 #define ACPI_NUM_TABLE_EVENTS       2
1089 
1090 /* Address Spaces (For Operation Regions) */
1091 
1092 typedef
1093 acpi_status(*acpi_adr_space_handler) (u32 function,
1094 				      acpi_physical_address address,
1095 				      u32 bit_width,
1096 				      u64 *value,
1097 				      void *handler_context,
1098 				      void *region_context);
1099 
1100 #define ACPI_DEFAULT_HANDLER            NULL
1101 
1102 /* Special Context data for generic_serial_bus/general_purpose_io (ACPI 5.0) */
1103 
1104 struct acpi_connection_info {
1105 	u8 *connection;
1106 	u16 length;
1107 	u8 access_length;
1108 };
1109 
1110 typedef
1111 acpi_status(*acpi_adr_space_setup) (acpi_handle region_handle,
1112 				    u32 function,
1113 				    void *handler_context,
1114 				    void **region_context);
1115 
1116 #define ACPI_REGION_ACTIVATE    0
1117 #define ACPI_REGION_DEACTIVATE  1
1118 
1119 typedef
1120 acpi_status(*acpi_walk_callback) (acpi_handle object,
1121 				  u32 nesting_level,
1122 				  void *context, void **return_value);
1123 
1124 typedef
1125 u32 (*acpi_interface_handler) (acpi_string interface_name, u32 supported);
1126 
1127 /* Interrupt handler return values */
1128 
1129 #define ACPI_INTERRUPT_NOT_HANDLED      0x00
1130 #define ACPI_INTERRUPT_HANDLED          0x01
1131 
1132 /* GPE handler return values */
1133 
1134 #define ACPI_REENABLE_GPE               0x80
1135 
1136 /* Length of 32-bit EISAID values when converted back to a string */
1137 
1138 #define ACPI_EISAID_STRING_SIZE         8	/* Includes null terminator */
1139 
1140 /* Length of UUID (string) values */
1141 
1142 #define ACPI_UUID_LENGTH                16
1143 
1144 /* Length of 3-byte PCI class code values when converted back to a string */
1145 
1146 #define ACPI_PCICLS_STRING_SIZE         7	/* Includes null terminator */
1147 
1148 /* Structures used for device/processor HID, UID, CID, and SUB */
1149 
1150 struct acpi_pnp_device_id {
1151 	u32 length;		/* Length of string + null */
1152 	char *string;
1153 };
1154 
1155 struct acpi_pnp_device_id_list {
1156 	u32 count;		/* Number of IDs in Ids array */
1157 	u32 list_size;		/* Size of list, including ID strings */
1158 	struct acpi_pnp_device_id ids[1];	/* ID array */
1159 };
1160 
1161 /*
1162  * Structure returned from acpi_get_object_info.
1163  * Optimized for both 32- and 64-bit builds
1164  */
1165 struct acpi_device_info {
1166 	u32 info_size;		/* Size of info, including ID strings */
1167 	u32 name;		/* ACPI object Name */
1168 	acpi_object_type type;	/* ACPI object Type */
1169 	u8 param_count;		/* If a method, required parameter count */
1170 	u16 valid;		/* Indicates which optional fields are valid */
1171 	u8 flags;		/* Miscellaneous info */
1172 	u8 highest_dstates[4];	/* _sx_d values: 0xFF indicates not valid */
1173 	u8 lowest_dstates[5];	/* _sx_w values: 0xFF indicates not valid */
1174 	u32 current_status;	/* _STA value */
1175 	u64 address;	/* _ADR value */
1176 	struct acpi_pnp_device_id hardware_id;	/* _HID value */
1177 	struct acpi_pnp_device_id unique_id;	/* _UID value */
1178 	struct acpi_pnp_device_id subsystem_id;	/* _SUB value */
1179 	struct acpi_pnp_device_id class_code;	/* _CLS value */
1180 	struct acpi_pnp_device_id_list compatible_id_list;	/* _CID list <must be last> */
1181 };
1182 
1183 /* Values for Flags field above (acpi_get_object_info) */
1184 
1185 #define ACPI_PCI_ROOT_BRIDGE            0x01
1186 
1187 /* Flags for Valid field above (acpi_get_object_info) */
1188 
1189 #define ACPI_VALID_STA                  0x0001
1190 #define ACPI_VALID_ADR                  0x0002
1191 #define ACPI_VALID_HID                  0x0004
1192 #define ACPI_VALID_UID                  0x0008
1193 #define ACPI_VALID_SUB                  0x0010
1194 #define ACPI_VALID_CID                  0x0020
1195 #define ACPI_VALID_CLS                  0x0040
1196 #define ACPI_VALID_SXDS                 0x0100
1197 #define ACPI_VALID_SXWS                 0x0200
1198 
1199 /* Flags for _STA return value (current_status above) */
1200 
1201 #define ACPI_STA_DEVICE_PRESENT         0x01
1202 #define ACPI_STA_DEVICE_ENABLED         0x02
1203 #define ACPI_STA_DEVICE_UI              0x04
1204 #define ACPI_STA_DEVICE_FUNCTIONING     0x08
1205 #define ACPI_STA_DEVICE_OK              0x08	/* Synonym */
1206 #define ACPI_STA_BATTERY_PRESENT        0x10
1207 
1208 /* Context structs for address space handlers */
1209 
1210 struct acpi_pci_id {
1211 	u16 segment;
1212 	u16 bus;
1213 	u16 device;
1214 	u16 function;
1215 };
1216 
1217 struct acpi_mem_space_context {
1218 	u32 length;
1219 	acpi_physical_address address;
1220 	acpi_physical_address mapped_physical_address;
1221 	u8 *mapped_logical_address;
1222 	acpi_size mapped_length;
1223 };
1224 
1225 /*
1226  * struct acpi_memory_list is used only if the ACPICA local cache is enabled
1227  */
1228 struct acpi_memory_list {
1229 	char *list_name;
1230 	void *list_head;
1231 	u16 object_size;
1232 	u16 max_depth;
1233 	u16 current_depth;
1234 
1235 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
1236 
1237 	/* Statistics for debug memory tracking only */
1238 
1239 	u32 total_allocated;
1240 	u32 total_freed;
1241 	u32 max_occupied;
1242 	u32 total_size;
1243 	u32 current_total_size;
1244 	u32 requests;
1245 	u32 hits;
1246 #endif
1247 };
1248 
1249 /* Definitions of _OSI support */
1250 
1251 #define ACPI_VENDOR_STRINGS                 0x01
1252 #define ACPI_FEATURE_STRINGS                0x02
1253 #define ACPI_ENABLE_INTERFACES              0x00
1254 #define ACPI_DISABLE_INTERFACES             0x04
1255 
1256 #define ACPI_DISABLE_ALL_VENDOR_STRINGS     (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS)
1257 #define ACPI_DISABLE_ALL_FEATURE_STRINGS    (ACPI_DISABLE_INTERFACES | ACPI_FEATURE_STRINGS)
1258 #define ACPI_DISABLE_ALL_STRINGS            (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
1259 #define ACPI_ENABLE_ALL_VENDOR_STRINGS      (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS)
1260 #define ACPI_ENABLE_ALL_FEATURE_STRINGS     (ACPI_ENABLE_INTERFACES | ACPI_FEATURE_STRINGS)
1261 #define ACPI_ENABLE_ALL_STRINGS             (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
1262 
1263 #define ACPI_OSI_WIN_2000               0x01
1264 #define ACPI_OSI_WIN_XP                 0x02
1265 #define ACPI_OSI_WIN_XP_SP1             0x03
1266 #define ACPI_OSI_WINSRV_2003            0x04
1267 #define ACPI_OSI_WIN_XP_SP2             0x05
1268 #define ACPI_OSI_WINSRV_2003_SP1        0x06
1269 #define ACPI_OSI_WIN_VISTA              0x07
1270 #define ACPI_OSI_WINSRV_2008            0x08
1271 #define ACPI_OSI_WIN_VISTA_SP1          0x09
1272 #define ACPI_OSI_WIN_VISTA_SP2          0x0A
1273 #define ACPI_OSI_WIN_7                  0x0B
1274 #define ACPI_OSI_WIN_8                  0x0C
1275 #define ACPI_OSI_WIN_10                 0x0D
1276 
1277 /* Definitions of file IO */
1278 
1279 #define ACPI_FILE_READING               0x01
1280 #define ACPI_FILE_WRITING               0x02
1281 #define ACPI_FILE_BINARY                0x04
1282 
1283 #define ACPI_FILE_BEGIN                 0x01
1284 #define ACPI_FILE_END                   0x02
1285 
1286 /* Definitions of getopt */
1287 
1288 #define ACPI_OPT_END                    -1
1289 
1290 #endif				/* __ACTYPES_H__ */
1291