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1  /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2  /******************************************************************************
3   *
4   * Name: actypes.h - Common data types for the entire ACPI subsystem
5   *
6   * Copyright (C) 2000 - 2020, Intel Corp.
7   *
8   *****************************************************************************/
9  
10  #ifndef __ACTYPES_H__
11  #define __ACTYPES_H__
12  
13  /* acpisrc:struct_defs -- for acpisrc conversion */
14  
15  /*
16   * ACPI_MACHINE_WIDTH must be specified in an OS- or compiler-dependent
17   * header and must be either 32 or 64. 16-bit ACPICA is no longer
18   * supported, as of 12/2006.
19   */
20  #ifndef ACPI_MACHINE_WIDTH
21  #error ACPI_MACHINE_WIDTH not defined
22  #endif
23  
24  /*
25   * Data type ranges
26   * Note: These macros are designed to be compiler independent as well as
27   * working around problems that some 32-bit compilers have with 64-bit
28   * constants.
29   */
30  #define ACPI_UINT8_MAX                  (u8) (~((u8)  0))	/* 0xFF               */
31  #define ACPI_UINT16_MAX                 (u16)(~((u16) 0))	/* 0xFFFF             */
32  #define ACPI_UINT32_MAX                 (u32)(~((u32) 0))	/* 0xFFFFFFFF         */
33  #define ACPI_UINT64_MAX                 (u64)(~((u64) 0))	/* 0xFFFFFFFFFFFFFFFF */
34  #define ACPI_ASCII_MAX                  0x7F
35  
36  /*
37   * Architecture-specific ACPICA Subsystem Data Types
38   *
39   * The goal of these types is to provide source code portability across
40   * 16-bit, 32-bit, and 64-bit targets.
41   *
42   * 1) The following types are of fixed size for all targets (16/32/64):
43   *
44   * u8           Logical boolean
45   *
46   * u8           8-bit  (1 byte) unsigned value
47   * u16          16-bit (2 byte) unsigned value
48   * u32          32-bit (4 byte) unsigned value
49   * u64          64-bit (8 byte) unsigned value
50   *
51   * s16          16-bit (2 byte) signed value
52   * s32          32-bit (4 byte) signed value
53   * s64          64-bit (8 byte) signed value
54   *
55   * COMPILER_DEPENDENT_UINT64/s64 - These types are defined in the
56   * compiler-dependent header(s) and were introduced because there is no
57   * common 64-bit integer type across the various compilation models, as
58   * shown in the table below.
59   *
60   * Datatype  LP64 ILP64 LLP64 ILP32 LP32 16bit
61   * char      8    8     8     8     8    8
62   * short     16   16    16    16    16   16
63   * _int32         32
64   * int       32   64    32    32    16   16
65   * long      64   64    32    32    32   32
66   * long long            64    64
67   * pointer   64   64    64    32    32   32
68   *
69   * Note: ILP64 and LP32 are currently not supported.
70   *
71   *
72   * 2) These types represent the native word size of the target mode of the
73   * processor, and may be 16-bit, 32-bit, or 64-bit as required. They are
74   * usually used for memory allocation, efficient loop counters, and array
75   * indexes. The types are similar to the size_t type in the C library and
76   * are required because there is no C type that consistently represents the
77   * native data width. acpi_size is needed because there is no guarantee
78   * that a kernel-level C library is present.
79   *
80   * acpi_size        16/32/64-bit unsigned value
81   * acpi_native_int  16/32/64-bit signed value
82   */
83  
84  /*******************************************************************************
85   *
86   * Common types for all compilers, all targets
87   *
88   ******************************************************************************/
89  
90  #ifndef ACPI_USE_SYSTEM_INTTYPES
91  
92  typedef unsigned char u8;
93  typedef unsigned short u16;
94  typedef short s16;
95  typedef COMPILER_DEPENDENT_UINT64 u64;
96  typedef COMPILER_DEPENDENT_INT64 s64;
97  
98  #endif				/* ACPI_USE_SYSTEM_INTTYPES */
99  
100  /*
101   * Value returned by acpi_os_get_thread_id. There is no standard "thread_id"
102   * across operating systems or even the various UNIX systems. Since ACPICA
103   * only needs the thread ID as a unique thread identifier, we use a u64
104   * as the only common data type - it will accommodate any type of pointer or
105   * any type of integer. It is up to the host-dependent OSL to cast the
106   * native thread ID type to a u64 (in acpi_os_get_thread_id).
107   */
108  #define acpi_thread_id                  u64
109  
110  /*******************************************************************************
111   *
112   * Types specific to 64-bit targets
113   *
114   ******************************************************************************/
115  
116  #if ACPI_MACHINE_WIDTH == 64
117  
118  #ifndef ACPI_USE_SYSTEM_INTTYPES
119  
120  typedef unsigned int u32;
121  typedef int s32;
122  
123  #endif				/* ACPI_USE_SYSTEM_INTTYPES */
124  
125  typedef s64 acpi_native_int;
126  
127  typedef u64 acpi_size;
128  typedef u64 acpi_io_address;
129  typedef u64 acpi_physical_address;
130  
131  #define ACPI_MAX_PTR                    ACPI_UINT64_MAX
132  #define ACPI_SIZE_MAX                   ACPI_UINT64_MAX
133  
134  #define ACPI_USE_NATIVE_DIVIDE	/* Has native 64-bit integer support */
135  #define ACPI_USE_NATIVE_MATH64	/* Has native 64-bit integer support */
136  
137  /*
138   * In the case of the Itanium Processor Family (IPF), the hardware does not
139   * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED
140   * flag to indicate that special precautions must be taken to avoid alignment
141   * faults. (IA64 or ia64 is currently used by existing compilers to indicate
142   * IPF.)
143   *
144   * Note: EM64T and other X86-64 processors support misaligned transfers,
145   * so there is no need to define this flag.
146   */
147  #if defined (__IA64__) || defined (__ia64__)
148  #define ACPI_MISALIGNMENT_NOT_SUPPORTED
149  #endif
150  
151  /*******************************************************************************
152   *
153   * Types specific to 32-bit targets
154   *
155   ******************************************************************************/
156  
157  #elif ACPI_MACHINE_WIDTH == 32
158  
159  #ifndef ACPI_USE_SYSTEM_INTTYPES
160  
161  typedef unsigned int u32;
162  typedef int s32;
163  
164  #endif				/* ACPI_USE_SYSTEM_INTTYPES */
165  
166  typedef s32 acpi_native_int;
167  
168  typedef u32 acpi_size;
169  
170  #ifdef ACPI_32BIT_PHYSICAL_ADDRESS
171  
172  /*
173   * OSPMs can define this to shrink the size of the structures for 32-bit
174   * none PAE environment. ASL compiler may always define this to generate
175   * 32-bit OSPM compliant tables.
176   */
177  typedef u32 acpi_io_address;
178  typedef u32 acpi_physical_address;
179  
180  #else				/* ACPI_32BIT_PHYSICAL_ADDRESS */
181  
182  /*
183   * It is reported that, after some calculations, the physical addresses can
184   * wrap over the 32-bit boundary on 32-bit PAE environment.
185   * https://bugzilla.kernel.org/show_bug.cgi?id=87971
186   */
187  typedef u64 acpi_io_address;
188  typedef u64 acpi_physical_address;
189  
190  #endif				/* ACPI_32BIT_PHYSICAL_ADDRESS */
191  
192  #define ACPI_MAX_PTR                    ACPI_UINT32_MAX
193  #define ACPI_SIZE_MAX                   ACPI_UINT32_MAX
194  
195  #else
196  
197  /* ACPI_MACHINE_WIDTH must be either 64 or 32 */
198  
199  #error unknown ACPI_MACHINE_WIDTH
200  #endif
201  
202  /*******************************************************************************
203   *
204   * OS-dependent types
205   *
206   * If the defaults below are not appropriate for the host system, they can
207   * be defined in the OS-specific header, and this will take precedence.
208   *
209   ******************************************************************************/
210  
211  /* Flags for acpi_os_acquire_lock/acpi_os_release_lock */
212  
213  #ifndef acpi_cpu_flags
214  #define acpi_cpu_flags			acpi_size
215  #endif
216  
217  /* Object returned from acpi_os_create_cache */
218  
219  #ifndef acpi_cache_t
220  #ifdef ACPI_USE_LOCAL_CACHE
221  #define acpi_cache_t                    struct acpi_memory_list
222  #else
223  #define acpi_cache_t                    void *
224  #endif
225  #endif
226  
227  /*
228   * Synchronization objects - Mutexes, Semaphores, and spin_locks
229   */
230  #if (ACPI_MUTEX_TYPE == ACPI_BINARY_SEMAPHORE)
231  /*
232   * These macros are used if the host OS does not support a mutex object.
233   * Map the OSL Mutex interfaces to binary semaphores.
234   */
235  #define acpi_mutex                      acpi_semaphore
236  #define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle)
237  #define acpi_os_delete_mutex(handle)    (void) acpi_os_delete_semaphore (handle)
238  #define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time)
239  #define acpi_os_release_mutex(handle)   (void) acpi_os_signal_semaphore (handle, 1)
240  #endif
241  
242  /* Configurable types for synchronization objects */
243  
244  #ifndef acpi_spinlock
245  #define acpi_spinlock                   void *
246  #endif
247  
248  #ifndef acpi_raw_spinlock
249  #define acpi_raw_spinlock		acpi_spinlock
250  #endif
251  
252  #ifndef acpi_semaphore
253  #define acpi_semaphore                  void *
254  #endif
255  
256  #ifndef acpi_mutex
257  #define acpi_mutex                      void *
258  #endif
259  
260  /*******************************************************************************
261   *
262   * Compiler-dependent types
263   *
264   * If the defaults below are not appropriate for the host compiler, they can
265   * be defined in the compiler-specific header, and this will take precedence.
266   *
267   ******************************************************************************/
268  
269  /* Use C99 uintptr_t for pointer casting if available, "void *" otherwise */
270  
271  #ifndef acpi_uintptr_t
272  #define acpi_uintptr_t                  void *
273  #endif
274  
275  /*
276   * ACPI_PRINTF_LIKE is used to tag functions as "printf-like" because
277   * some compilers can catch printf format string problems
278   */
279  #ifndef ACPI_PRINTF_LIKE
280  #define ACPI_PRINTF_LIKE(c)
281  #endif
282  
283  /*
284   * Some compilers complain about unused variables. Sometimes we don't want
285   * to use all the variables (for example, _acpi_module_name). This allows us
286   * to tell the compiler in a per-variable manner that a variable
287   * is unused
288   */
289  #ifndef ACPI_UNUSED_VAR
290  #define ACPI_UNUSED_VAR
291  #endif
292  
293  /*
294   * All ACPICA external functions that are available to the rest of the
295   * kernel are tagged with these macros which can be defined as appropriate
296   * for the host.
297   *
298   * Notes:
299   * ACPI_EXPORT_SYMBOL_INIT is used for initialization and termination
300   * interfaces that may need special processing.
301   * ACPI_EXPORT_SYMBOL is used for all other public external functions.
302   */
303  #ifndef ACPI_EXPORT_SYMBOL_INIT
304  #define ACPI_EXPORT_SYMBOL_INIT(symbol)
305  #endif
306  
307  #ifndef ACPI_EXPORT_SYMBOL
308  #define ACPI_EXPORT_SYMBOL(symbol)
309  #endif
310  
311  /*
312   * Compiler/Clibrary-dependent debug initialization. Used for ACPICA
313   * utilities only.
314   */
315  #ifndef ACPI_DEBUG_INITIALIZE
316  #define ACPI_DEBUG_INITIALIZE()
317  #endif
318  
319  /*******************************************************************************
320   *
321   * Configuration
322   *
323   ******************************************************************************/
324  
325  #ifdef ACPI_NO_MEM_ALLOCATIONS
326  
327  #define ACPI_ALLOCATE(a)                NULL
328  #define ACPI_ALLOCATE_ZEROED(a)         NULL
329  #define ACPI_FREE(a)
330  #define ACPI_MEM_TRACKING(a)
331  
332  #else				/* ACPI_NO_MEM_ALLOCATIONS */
333  
334  #ifdef ACPI_DBG_TRACK_ALLOCATIONS
335  /*
336   * Memory allocation tracking (used by acpi_exec to detect memory leaks)
337   */
338  #define ACPI_MEM_PARAMETERS             _COMPONENT, _acpi_module_name, __LINE__
339  #define ACPI_ALLOCATE(a)                acpi_ut_allocate_and_track ((acpi_size) (a), ACPI_MEM_PARAMETERS)
340  #define ACPI_ALLOCATE_ZEROED(a)         acpi_ut_allocate_zeroed_and_track ((acpi_size) (a), ACPI_MEM_PARAMETERS)
341  #define ACPI_FREE(a)                    acpi_ut_free_and_track (a, ACPI_MEM_PARAMETERS)
342  #define ACPI_MEM_TRACKING(a)            a
343  
344  #else
345  /*
346   * Normal memory allocation directly via the OS services layer
347   */
348  #define ACPI_ALLOCATE(a)                acpi_os_allocate ((acpi_size) (a))
349  #define ACPI_ALLOCATE_ZEROED(a)         acpi_os_allocate_zeroed ((acpi_size) (a))
350  #define ACPI_FREE(a)                    acpi_os_free (a)
351  #define ACPI_MEM_TRACKING(a)
352  
353  #endif				/* ACPI_DBG_TRACK_ALLOCATIONS */
354  
355  #endif				/* ACPI_NO_MEM_ALLOCATIONS */
356  
357  /******************************************************************************
358   *
359   * ACPI Specification constants (Do not change unless the specification
360   * changes)
361   *
362   *****************************************************************************/
363  
364  /* Number of distinct FADT-based GPE register blocks (GPE0 and GPE1) */
365  
366  #define ACPI_MAX_GPE_BLOCKS             2
367  
368  /* Default ACPI register widths */
369  
370  #define ACPI_GPE_REGISTER_WIDTH         8
371  #define ACPI_PM1_REGISTER_WIDTH         16
372  #define ACPI_PM2_REGISTER_WIDTH         8
373  #define ACPI_PM_TIMER_WIDTH             32
374  #define ACPI_RESET_REGISTER_WIDTH       8
375  
376  /* Names within the namespace are 4 bytes long */
377  
378  #define ACPI_NAMESEG_SIZE               4	/* Fixed by ACPI spec */
379  #define ACPI_PATH_SEGMENT_LENGTH        5	/* 4 chars for name + 1 char for separator */
380  #define ACPI_PATH_SEPARATOR             '.'
381  
382  /* Sizes for ACPI table headers */
383  
384  #define ACPI_OEM_ID_SIZE                6
385  #define ACPI_OEM_TABLE_ID_SIZE          8
386  
387  /* ACPI/PNP hardware IDs */
388  
389  #define PCI_ROOT_HID_STRING             "PNP0A03"
390  #define PCI_EXPRESS_ROOT_HID_STRING     "PNP0A08"
391  
392  /* PM Timer ticks per second (HZ) */
393  
394  #define ACPI_PM_TIMER_FREQUENCY         3579545
395  
396  /*******************************************************************************
397   *
398   * Independent types
399   *
400   ******************************************************************************/
401  
402  /* Logical defines and NULL */
403  
404  #ifdef FALSE
405  #undef FALSE
406  #endif
407  #define FALSE                           (1 == 0)
408  
409  #ifdef TRUE
410  #undef TRUE
411  #endif
412  #define TRUE                            (1 == 1)
413  
414  #ifndef NULL
415  #define NULL                            (void *) 0
416  #endif
417  
418  /*
419   * Miscellaneous types
420   */
421  typedef u32 acpi_status;	/* All ACPI Exceptions */
422  typedef u32 acpi_name;		/* 4-byte ACPI name */
423  typedef char *acpi_string;	/* Null terminated ASCII string */
424  typedef void *acpi_handle;	/* Actually a ptr to a NS Node */
425  
426  /* Time constants for timer calculations */
427  
428  #define ACPI_MSEC_PER_SEC               1000L
429  
430  #define ACPI_USEC_PER_MSEC              1000L
431  #define ACPI_USEC_PER_SEC               1000000L
432  
433  #define ACPI_100NSEC_PER_USEC           10L
434  #define ACPI_100NSEC_PER_MSEC           10000L
435  #define ACPI_100NSEC_PER_SEC            10000000L
436  
437  #define ACPI_NSEC_PER_USEC              1000L
438  #define ACPI_NSEC_PER_MSEC              1000000L
439  #define ACPI_NSEC_PER_SEC               1000000000L
440  
441  #define ACPI_TIME_AFTER(a, b)           ((s64)((b) - (a)) < 0)
442  
443  /* Owner IDs are used to track namespace nodes for selective deletion */
444  
445  typedef u16 acpi_owner_id;
446  #define ACPI_OWNER_ID_MAX               0xFFF	/* 4095 possible owner IDs */
447  
448  #define ACPI_INTEGER_BIT_SIZE           64
449  #define ACPI_MAX_DECIMAL_DIGITS         20	/* 2^64 = 18,446,744,073,709,551,616 */
450  #define ACPI_MAX64_DECIMAL_DIGITS       20
451  #define ACPI_MAX32_DECIMAL_DIGITS       10
452  #define ACPI_MAX16_DECIMAL_DIGITS        5
453  #define ACPI_MAX8_DECIMAL_DIGITS         3
454  
455  /*
456   * Constants with special meanings
457   */
458  #define ACPI_ROOT_OBJECT                ((acpi_handle) ACPI_TO_POINTER (ACPI_MAX_PTR))
459  #define ACPI_WAIT_FOREVER               0xFFFF	/* u16, as per ACPI spec */
460  #define ACPI_DO_NOT_WAIT                0
461  
462  /*
463   * Obsolete: Acpi integer width. In ACPI version 1 (1996), integers are
464   * 32 bits. In ACPI version 2 (2000) and later, integers are max 64 bits.
465   * Note that this pertains to the ACPI integer type only, not to other
466   * integers used in the implementation of the ACPICA subsystem.
467   *
468   * 01/2010: This type is obsolete and has been removed from the entire ACPICA
469   * code base. It remains here for compatibility with device drivers that use
470   * the type. However, it will be removed in the future.
471   */
472  typedef u64 acpi_integer;
473  #define ACPI_INTEGER_MAX                ACPI_UINT64_MAX
474  
475  /*******************************************************************************
476   *
477   * Commonly used macros
478   *
479   ******************************************************************************/
480  
481  /* Data manipulation */
482  
483  #define ACPI_LOBYTE(integer)            ((u8)   (u16)(integer))
484  #define ACPI_HIBYTE(integer)            ((u8) (((u16)(integer)) >> 8))
485  #define ACPI_LOWORD(integer)            ((u16)  (u32)(integer))
486  #define ACPI_HIWORD(integer)            ((u16)(((u32)(integer)) >> 16))
487  #define ACPI_LODWORD(integer64)         ((u32)  (u64)(integer64))
488  #define ACPI_HIDWORD(integer64)         ((u32)(((u64)(integer64)) >> 32))
489  
490  #define ACPI_SET_BIT(target,bit)        ((target) |= (bit))
491  #define ACPI_CLEAR_BIT(target,bit)      ((target) &= ~(bit))
492  #define ACPI_MIN(a,b)                   (((a)<(b))?(a):(b))
493  #define ACPI_MAX(a,b)                   (((a)>(b))?(a):(b))
494  
495  /* Size calculation */
496  
497  #define ACPI_ARRAY_LENGTH(x)            (sizeof(x) / sizeof((x)[0]))
498  
499  /* Pointer manipulation */
500  
501  #define ACPI_CAST_PTR(t, p)             ((t *) (acpi_uintptr_t) (p))
502  #define ACPI_CAST_INDIRECT_PTR(t, p)    ((t **) (acpi_uintptr_t) (p))
503  #define ACPI_ADD_PTR(t, a, b)           ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8, (a)) + (acpi_size)(b)))
504  #define ACPI_SUB_PTR(t, a, b)           ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8, (a)) - (acpi_size)(b)))
505  #define ACPI_PTR_DIFF(a, b)             ((acpi_size) (ACPI_CAST_PTR (u8, (a)) - ACPI_CAST_PTR (u8, (b))))
506  
507  /* Pointer/Integer type conversions */
508  
509  #define ACPI_TO_POINTER(i)              ACPI_CAST_PTR (void, (acpi_size) (i))
510  #define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p, (void *) 0)
511  #define ACPI_OFFSET(d, f)               ACPI_PTR_DIFF (&(((d *) 0)->f), (void *) 0)
512  #define ACPI_PHYSADDR_TO_PTR(i)         ACPI_TO_POINTER(i)
513  #define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
514  
515  /* Optimizations for 4-character (32-bit) acpi_name manipulation */
516  
517  #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
518  #define ACPI_COMPARE_NAMESEG(a,b)       (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b)))
519  #define ACPI_COPY_NAMESEG(dest,src)     (*ACPI_CAST_PTR (u32, (dest)) = *ACPI_CAST_PTR (u32, (src)))
520  #else
521  #define ACPI_COMPARE_NAMESEG(a,b)       (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAMESEG_SIZE))
522  #define ACPI_COPY_NAMESEG(dest,src)     (strncpy (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAMESEG_SIZE))
523  #endif
524  
525  /* Support for the special RSDP signature (8 characters) */
526  
527  #define ACPI_VALIDATE_RSDP_SIG(a)       (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
528  #define ACPI_MAKE_RSDP_SIG(dest)        (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
529  
530  /* Support for OEMx signature (x can be any character) */
531  #define ACPI_IS_OEM_SIG(a)        (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_OEM_NAME, 3) &&\
532  	 strnlen (a, ACPI_NAMESEG_SIZE) == ACPI_NAMESEG_SIZE)
533  
534  /*
535   * Algorithm to obtain access bit or byte width.
536   * Can be used with access_width of struct acpi_generic_address and access_size of
537   * struct acpi_resource_generic_register.
538   */
539  #define ACPI_ACCESS_BIT_SHIFT		2
540  #define ACPI_ACCESS_BYTE_SHIFT		-1
541  #define ACPI_ACCESS_BIT_MAX		(31 - ACPI_ACCESS_BIT_SHIFT)
542  #define ACPI_ACCESS_BYTE_MAX		(31 - ACPI_ACCESS_BYTE_SHIFT)
543  #define ACPI_ACCESS_BIT_DEFAULT		(8 - ACPI_ACCESS_BIT_SHIFT)
544  #define ACPI_ACCESS_BYTE_DEFAULT	(8 - ACPI_ACCESS_BYTE_SHIFT)
545  #define ACPI_ACCESS_BIT_WIDTH(size)	(1 << ((size) + ACPI_ACCESS_BIT_SHIFT))
546  #define ACPI_ACCESS_BYTE_WIDTH(size)	(1 << ((size) + ACPI_ACCESS_BYTE_SHIFT))
547  
548  /*******************************************************************************
549   *
550   * Miscellaneous constants
551   *
552   ******************************************************************************/
553  
554  /*
555   * Initialization sequence options
556   */
557  #define ACPI_FULL_INITIALIZATION        0x0000
558  #define ACPI_NO_FACS_INIT               0x0001
559  #define ACPI_NO_ACPI_ENABLE             0x0002
560  #define ACPI_NO_HARDWARE_INIT           0x0004
561  #define ACPI_NO_EVENT_INIT              0x0008
562  #define ACPI_NO_HANDLER_INIT            0x0010
563  #define ACPI_NO_OBJECT_INIT             0x0020
564  #define ACPI_NO_DEVICE_INIT             0x0040
565  #define ACPI_NO_ADDRESS_SPACE_INIT      0x0080
566  
567  /*
568   * Initialization state
569   */
570  #define ACPI_SUBSYSTEM_INITIALIZE       0x01
571  #define ACPI_INITIALIZED_OK             0x02
572  
573  /*
574   * Power state values
575   */
576  #define ACPI_STATE_UNKNOWN              (u8) 0xFF
577  
578  #define ACPI_STATE_S0                   (u8) 0
579  #define ACPI_STATE_S1                   (u8) 1
580  #define ACPI_STATE_S2                   (u8) 2
581  #define ACPI_STATE_S3                   (u8) 3
582  #define ACPI_STATE_S4                   (u8) 4
583  #define ACPI_STATE_S5                   (u8) 5
584  #define ACPI_S_STATES_MAX               ACPI_STATE_S5
585  #define ACPI_S_STATE_COUNT              6
586  
587  #define ACPI_STATE_D0                   (u8) 0
588  #define ACPI_STATE_D1                   (u8) 1
589  #define ACPI_STATE_D2                   (u8) 2
590  #define ACPI_STATE_D3_HOT               (u8) 3
591  #define ACPI_STATE_D3                   (u8) 4
592  #define ACPI_STATE_D3_COLD              ACPI_STATE_D3
593  #define ACPI_D_STATES_MAX               ACPI_STATE_D3
594  #define ACPI_D_STATE_COUNT              5
595  
596  #define ACPI_STATE_C0                   (u8) 0
597  #define ACPI_STATE_C1                   (u8) 1
598  #define ACPI_STATE_C2                   (u8) 2
599  #define ACPI_STATE_C3                   (u8) 3
600  #define ACPI_C_STATES_MAX               ACPI_STATE_C3
601  #define ACPI_C_STATE_COUNT              4
602  
603  /*
604   * Sleep type invalid value
605   */
606  #define ACPI_SLEEP_TYPE_MAX             0x7
607  #define ACPI_SLEEP_TYPE_INVALID         0xFF
608  
609  /*
610   * Standard notify values
611   */
612  #define ACPI_NOTIFY_BUS_CHECK           (u8) 0x00
613  #define ACPI_NOTIFY_DEVICE_CHECK        (u8) 0x01
614  #define ACPI_NOTIFY_DEVICE_WAKE         (u8) 0x02
615  #define ACPI_NOTIFY_EJECT_REQUEST       (u8) 0x03
616  #define ACPI_NOTIFY_DEVICE_CHECK_LIGHT  (u8) 0x04
617  #define ACPI_NOTIFY_FREQUENCY_MISMATCH  (u8) 0x05
618  #define ACPI_NOTIFY_BUS_MODE_MISMATCH   (u8) 0x06
619  #define ACPI_NOTIFY_POWER_FAULT         (u8) 0x07
620  #define ACPI_NOTIFY_CAPABILITIES_CHECK  (u8) 0x08
621  #define ACPI_NOTIFY_DEVICE_PLD_CHECK    (u8) 0x09
622  #define ACPI_NOTIFY_RESERVED            (u8) 0x0A
623  #define ACPI_NOTIFY_LOCALITY_UPDATE     (u8) 0x0B
624  #define ACPI_NOTIFY_SHUTDOWN_REQUEST    (u8) 0x0C
625  #define ACPI_NOTIFY_AFFINITY_UPDATE     (u8) 0x0D
626  #define ACPI_NOTIFY_MEMORY_UPDATE       (u8) 0x0E
627  #define ACPI_NOTIFY_DISCONNECT_RECOVER  (u8) 0x0F
628  
629  #define ACPI_GENERIC_NOTIFY_MAX         0x0F
630  #define ACPI_SPECIFIC_NOTIFY_MAX        0x84
631  
632  /*
633   * Types associated with ACPI names and objects. The first group of
634   * values (up to ACPI_TYPE_EXTERNAL_MAX) correspond to the definition
635   * of the ACPI object_type() operator (See the ACPI Spec). Therefore,
636   * only add to the first group if the spec changes.
637   *
638   * NOTE: Types must be kept in sync with the global acpi_ns_properties
639   * and acpi_ns_type_names arrays.
640   */
641  typedef u32 acpi_object_type;
642  
643  #define ACPI_TYPE_ANY                   0x00
644  #define ACPI_TYPE_INTEGER               0x01	/* Byte/Word/Dword/Zero/One/Ones */
645  #define ACPI_TYPE_STRING                0x02
646  #define ACPI_TYPE_BUFFER                0x03
647  #define ACPI_TYPE_PACKAGE               0x04	/* byte_const, multiple data_term/Constant/super_name */
648  #define ACPI_TYPE_FIELD_UNIT            0x05
649  #define ACPI_TYPE_DEVICE                0x06	/* Name, multiple Node */
650  #define ACPI_TYPE_EVENT                 0x07
651  #define ACPI_TYPE_METHOD                0x08	/* Name, byte_const, multiple Code */
652  #define ACPI_TYPE_MUTEX                 0x09
653  #define ACPI_TYPE_REGION                0x0A
654  #define ACPI_TYPE_POWER                 0x0B	/* Name,byte_const,word_const,multi Node */
655  #define ACPI_TYPE_PROCESSOR             0x0C	/* Name,byte_const,Dword_const,byte_const,multi nm_o */
656  #define ACPI_TYPE_THERMAL               0x0D	/* Name, multiple Node */
657  #define ACPI_TYPE_BUFFER_FIELD          0x0E
658  #define ACPI_TYPE_DDB_HANDLE            0x0F
659  #define ACPI_TYPE_DEBUG_OBJECT          0x10
660  
661  #define ACPI_TYPE_EXTERNAL_MAX          0x10
662  #define ACPI_NUM_TYPES                  (ACPI_TYPE_EXTERNAL_MAX + 1)
663  
664  /*
665   * These are object types that do not map directly to the ACPI
666   * object_type() operator. They are used for various internal purposes
667   * only. If new predefined ACPI_TYPEs are added (via the ACPI
668   * specification), these internal types must move upwards. (There
669   * is code that depends on these values being contiguous with the
670   * external types above.)
671   */
672  #define ACPI_TYPE_LOCAL_REGION_FIELD    0x11
673  #define ACPI_TYPE_LOCAL_BANK_FIELD      0x12
674  #define ACPI_TYPE_LOCAL_INDEX_FIELD     0x13
675  #define ACPI_TYPE_LOCAL_REFERENCE       0x14	/* Arg#, Local#, Name, Debug, ref_of, Index */
676  #define ACPI_TYPE_LOCAL_ALIAS           0x15
677  #define ACPI_TYPE_LOCAL_METHOD_ALIAS    0x16
678  #define ACPI_TYPE_LOCAL_NOTIFY          0x17
679  #define ACPI_TYPE_LOCAL_ADDRESS_HANDLER 0x18
680  #define ACPI_TYPE_LOCAL_RESOURCE        0x19
681  #define ACPI_TYPE_LOCAL_RESOURCE_FIELD  0x1A
682  #define ACPI_TYPE_LOCAL_SCOPE           0x1B	/* 1 Name, multiple object_list Nodes */
683  
684  #define ACPI_TYPE_NS_NODE_MAX           0x1B	/* Last typecode used within a NS Node */
685  #define ACPI_TOTAL_TYPES                (ACPI_TYPE_NS_NODE_MAX + 1)
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 31:6 |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   *          |     +----------- Masked?
742   *          +----------------- <Reserved>
743   */
744  typedef u32 acpi_event_status;
745  
746  #define ACPI_EVENT_FLAG_DISABLED        (acpi_event_status) 0x00
747  #define ACPI_EVENT_FLAG_ENABLED         (acpi_event_status) 0x01
748  #define ACPI_EVENT_FLAG_WAKE_ENABLED    (acpi_event_status) 0x02
749  #define ACPI_EVENT_FLAG_STATUS_SET      (acpi_event_status) 0x04
750  #define ACPI_EVENT_FLAG_ENABLE_SET      (acpi_event_status) 0x08
751  #define ACPI_EVENT_FLAG_HAS_HANDLER     (acpi_event_status) 0x10
752  #define ACPI_EVENT_FLAG_MASKED          (acpi_event_status) 0x20
753  #define ACPI_EVENT_FLAG_SET             ACPI_EVENT_FLAG_STATUS_SET
754  
755  /* Actions for acpi_set_gpe, acpi_gpe_wakeup, acpi_hw_low_set_gpe */
756  
757  #define ACPI_GPE_ENABLE                 0
758  #define ACPI_GPE_DISABLE                1
759  #define ACPI_GPE_CONDITIONAL_ENABLE     2
760  
761  /*
762   * GPE info flags - Per GPE
763   * +---+-+-+-+---+
764   * |7:6|5|4|3|2:0|
765   * +---+-+-+-+---+
766   *   |  | | |  |
767   *   |  | | |  +-- Type of dispatch:to method, handler, notify, or none
768   *   |  | | +----- Interrupt type: edge or level triggered
769   *   |  | +------- Is a Wake GPE
770   *   |  +--------- Has been enabled automatically at init time
771   *   +------------ <Reserved>
772   */
773  #define ACPI_GPE_DISPATCH_NONE          (u8) 0x00
774  #define ACPI_GPE_DISPATCH_METHOD        (u8) 0x01
775  #define ACPI_GPE_DISPATCH_HANDLER       (u8) 0x02
776  #define ACPI_GPE_DISPATCH_NOTIFY        (u8) 0x03
777  #define ACPI_GPE_DISPATCH_RAW_HANDLER   (u8) 0x04
778  #define ACPI_GPE_DISPATCH_MASK          (u8) 0x07
779  #define ACPI_GPE_DISPATCH_TYPE(flags)   ((u8) ((flags) & ACPI_GPE_DISPATCH_MASK))
780  
781  #define ACPI_GPE_LEVEL_TRIGGERED        (u8) 0x08
782  #define ACPI_GPE_EDGE_TRIGGERED         (u8) 0x00
783  #define ACPI_GPE_XRUPT_TYPE_MASK        (u8) 0x08
784  
785  #define ACPI_GPE_CAN_WAKE               (u8) 0x10
786  #define ACPI_GPE_AUTO_ENABLED           (u8) 0x20
787  #define ACPI_GPE_INITIALIZED            (u8) 0x40
788  
789  /*
790   * Flags for GPE and Lock interfaces
791   */
792  #define ACPI_NOT_ISR                    0x1
793  #define ACPI_ISR                        0x0
794  
795  /* Notify types */
796  
797  #define ACPI_SYSTEM_NOTIFY              0x1
798  #define ACPI_DEVICE_NOTIFY              0x2
799  #define ACPI_ALL_NOTIFY                 (ACPI_SYSTEM_NOTIFY | ACPI_DEVICE_NOTIFY)
800  #define ACPI_MAX_NOTIFY_HANDLER_TYPE    0x3
801  #define ACPI_NUM_NOTIFY_TYPES           2
802  
803  #define ACPI_MAX_SYS_NOTIFY             0x7F
804  #define ACPI_MAX_DEVICE_SPECIFIC_NOTIFY 0xBF
805  
806  #define ACPI_SYSTEM_HANDLER_LIST        0	/* Used as index, must be SYSTEM_NOTIFY -1 */
807  #define ACPI_DEVICE_HANDLER_LIST        1	/* Used as index, must be DEVICE_NOTIFY -1 */
808  
809  /* Address Space (Operation Region) Types */
810  
811  typedef u8 acpi_adr_space_type;
812  
813  #define ACPI_ADR_SPACE_SYSTEM_MEMORY    (acpi_adr_space_type) 0
814  #define ACPI_ADR_SPACE_SYSTEM_IO        (acpi_adr_space_type) 1
815  #define ACPI_ADR_SPACE_PCI_CONFIG       (acpi_adr_space_type) 2
816  #define ACPI_ADR_SPACE_EC               (acpi_adr_space_type) 3
817  #define ACPI_ADR_SPACE_SMBUS            (acpi_adr_space_type) 4
818  #define ACPI_ADR_SPACE_CMOS             (acpi_adr_space_type) 5
819  #define ACPI_ADR_SPACE_PCI_BAR_TARGET   (acpi_adr_space_type) 6
820  #define ACPI_ADR_SPACE_IPMI             (acpi_adr_space_type) 7
821  #define ACPI_ADR_SPACE_GPIO             (acpi_adr_space_type) 8
822  #define ACPI_ADR_SPACE_GSBUS            (acpi_adr_space_type) 9
823  #define ACPI_ADR_SPACE_PLATFORM_COMM    (acpi_adr_space_type) 10
824  #define ACPI_ADR_SPACE_PLATFORM_RT      (acpi_adr_space_type) 11
825  
826  #define ACPI_NUM_PREDEFINED_REGIONS     12
827  
828  /*
829   * Special Address Spaces
830   *
831   * Note: A Data Table region is a special type of operation region
832   * that has its own AML opcode. However, internally, the AML
833   * interpreter simply creates an operation region with an address
834   * space type of ACPI_ADR_SPACE_DATA_TABLE.
835   */
836  #define ACPI_ADR_SPACE_DATA_TABLE       (acpi_adr_space_type) 0x7E	/* Internal to ACPICA only */
837  #define ACPI_ADR_SPACE_FIXED_HARDWARE   (acpi_adr_space_type) 0x7F
838  
839  /* Values for _REG connection code */
840  
841  #define ACPI_REG_DISCONNECT             0
842  #define ACPI_REG_CONNECT                1
843  
844  /*
845   * bit_register IDs
846   *
847   * These values are intended to be used by the hardware interfaces
848   * and are mapped to individual bitfields defined within the ACPI
849   * registers. See the acpi_gbl_bit_register_info global table in utglobal.c
850   * for this mapping.
851   */
852  
853  /* PM1 Status register */
854  
855  #define ACPI_BITREG_TIMER_STATUS                0x00
856  #define ACPI_BITREG_BUS_MASTER_STATUS           0x01
857  #define ACPI_BITREG_GLOBAL_LOCK_STATUS          0x02
858  #define ACPI_BITREG_POWER_BUTTON_STATUS         0x03
859  #define ACPI_BITREG_SLEEP_BUTTON_STATUS         0x04
860  #define ACPI_BITREG_RT_CLOCK_STATUS             0x05
861  #define ACPI_BITREG_WAKE_STATUS                 0x06
862  #define ACPI_BITREG_PCIEXP_WAKE_STATUS          0x07
863  
864  /* PM1 Enable register */
865  
866  #define ACPI_BITREG_TIMER_ENABLE                0x08
867  #define ACPI_BITREG_GLOBAL_LOCK_ENABLE          0x09
868  #define ACPI_BITREG_POWER_BUTTON_ENABLE         0x0A
869  #define ACPI_BITREG_SLEEP_BUTTON_ENABLE         0x0B
870  #define ACPI_BITREG_RT_CLOCK_ENABLE             0x0C
871  #define ACPI_BITREG_PCIEXP_WAKE_DISABLE         0x0D
872  
873  /* PM1 Control register */
874  
875  #define ACPI_BITREG_SCI_ENABLE                  0x0E
876  #define ACPI_BITREG_BUS_MASTER_RLD              0x0F
877  #define ACPI_BITREG_GLOBAL_LOCK_RELEASE         0x10
878  #define ACPI_BITREG_SLEEP_TYPE                  0x11
879  #define ACPI_BITREG_SLEEP_ENABLE                0x12
880  
881  /* PM2 Control register */
882  
883  #define ACPI_BITREG_ARB_DISABLE                 0x13
884  
885  #define ACPI_BITREG_MAX                         0x13
886  #define ACPI_NUM_BITREG                         ACPI_BITREG_MAX + 1
887  
888  /* Status register values. A 1 clears a status bit. 0 = no effect */
889  
890  #define ACPI_CLEAR_STATUS                       1
891  
892  /* Enable and Control register values */
893  
894  #define ACPI_ENABLE_EVENT                       1
895  #define ACPI_DISABLE_EVENT                      0
896  
897  /*
898   * External ACPI object definition
899   */
900  
901  /*
902   * Note: Type == ACPI_TYPE_ANY (0) is used to indicate a NULL package
903   * element or an unresolved named reference.
904   */
905  union acpi_object {
906  	acpi_object_type type;	/* See definition of acpi_ns_type for values */
907  	struct {
908  		acpi_object_type type;	/* ACPI_TYPE_INTEGER */
909  		u64 value;	/* The actual number */
910  	} integer;
911  
912  	struct {
913  		acpi_object_type type;	/* ACPI_TYPE_STRING */
914  		u32 length;	/* # of bytes in string, excluding trailing null */
915  		char *pointer;	/* points to the string value */
916  	} string;
917  
918  	struct {
919  		acpi_object_type type;	/* ACPI_TYPE_BUFFER */
920  		u32 length;	/* # of bytes in buffer */
921  		u8 *pointer;	/* points to the buffer */
922  	} buffer;
923  
924  	struct {
925  		acpi_object_type type;	/* ACPI_TYPE_PACKAGE */
926  		u32 count;	/* # of elements in package */
927  		union acpi_object *elements;	/* Pointer to an array of ACPI_OBJECTs */
928  	} package;
929  
930  	struct {
931  		acpi_object_type type;	/* ACPI_TYPE_LOCAL_REFERENCE */
932  		acpi_object_type actual_type;	/* Type associated with the Handle */
933  		acpi_handle handle;	/* object reference */
934  	} reference;
935  
936  	struct {
937  		acpi_object_type type;	/* ACPI_TYPE_PROCESSOR */
938  		u32 proc_id;
939  		acpi_io_address pblk_address;
940  		u32 pblk_length;
941  	} processor;
942  
943  	struct {
944  		acpi_object_type type;	/* ACPI_TYPE_POWER */
945  		u32 system_level;
946  		u32 resource_order;
947  	} power_resource;
948  };
949  
950  /*
951   * List of objects, used as a parameter list for control method evaluation
952   */
953  struct acpi_object_list {
954  	u32 count;
955  	union acpi_object *pointer;
956  };
957  
958  /*
959   * Miscellaneous common Data Structures used by the interfaces
960   */
961  #define ACPI_NO_BUFFER              0
962  
963  #ifdef ACPI_NO_MEM_ALLOCATIONS
964  
965  #define ACPI_ALLOCATE_BUFFER        (acpi_size) (0)
966  #define ACPI_ALLOCATE_LOCAL_BUFFER  (acpi_size) (0)
967  
968  #else				/* ACPI_NO_MEM_ALLOCATIONS */
969  
970  #define ACPI_ALLOCATE_BUFFER        (acpi_size) (-1)	/* Let ACPICA allocate buffer */
971  #define ACPI_ALLOCATE_LOCAL_BUFFER  (acpi_size) (-2)	/* For internal use only (enables tracking) */
972  
973  #endif				/* ACPI_NO_MEM_ALLOCATIONS */
974  
975  struct acpi_buffer {
976  	acpi_size length;	/* Length in bytes of the buffer */
977  	void *pointer;		/* pointer to buffer */
978  };
979  
980  /*
981   * name_type for acpi_get_name
982   */
983  #define ACPI_FULL_PATHNAME              0
984  #define ACPI_SINGLE_NAME                1
985  #define ACPI_FULL_PATHNAME_NO_TRAILING  2
986  #define ACPI_NAME_TYPE_MAX              2
987  
988  /*
989   * Predefined Namespace items
990   */
991  struct acpi_predefined_names {
992  	const char *name;
993  	u8 type;
994  	char *val;
995  };
996  
997  /*
998   * Structure and flags for acpi_get_system_info
999   */
1000  #define ACPI_SYS_MODE_UNKNOWN           0x0000
1001  #define ACPI_SYS_MODE_ACPI              0x0001
1002  #define ACPI_SYS_MODE_LEGACY            0x0002
1003  #define ACPI_SYS_MODES_MASK             0x0003
1004  
1005  /*
1006   * System info returned by acpi_get_system_info()
1007   */
1008  struct acpi_system_info {
1009  	u32 acpi_ca_version;
1010  	u32 flags;
1011  	u32 timer_resolution;
1012  	u32 reserved1;
1013  	u32 reserved2;
1014  	u32 debug_level;
1015  	u32 debug_layer;
1016  };
1017  
1018  /*
1019   * System statistics returned by acpi_get_statistics()
1020   */
1021  struct acpi_statistics {
1022  	u32 sci_count;
1023  	u32 gpe_count;
1024  	u32 fixed_event_count[ACPI_NUM_FIXED_EVENTS];
1025  	u32 method_count;
1026  };
1027  
1028  /*
1029   * Types specific to the OS service interfaces
1030   */
1031  typedef u32
1032   (ACPI_SYSTEM_XFACE * acpi_osd_handler) (void *context);
1033  
1034  typedef void
1035   (ACPI_SYSTEM_XFACE * acpi_osd_exec_callback) (void *context);
1036  
1037  /*
1038   * Various handlers and callback procedures
1039   */
1040  typedef
1041  u32 (*acpi_sci_handler) (void *context);
1042  
1043  typedef
1044  void (*acpi_gbl_event_handler) (u32 event_type,
1045  			       acpi_handle device,
1046  			       u32 event_number, void *context);
1047  
1048  #define ACPI_EVENT_TYPE_GPE         0
1049  #define ACPI_EVENT_TYPE_FIXED       1
1050  
1051  typedef
1052  u32(*acpi_event_handler) (void *context);
1053  
1054  typedef
1055  u32 (*acpi_gpe_handler) (acpi_handle gpe_device, u32 gpe_number, void *context);
1056  
1057  typedef
1058  void (*acpi_notify_handler) (acpi_handle device, u32 value, void *context);
1059  
1060  typedef
1061  void (*acpi_object_handler) (acpi_handle object, void *data);
1062  
1063  typedef
1064  acpi_status (*acpi_init_handler) (acpi_handle object, u32 function);
1065  
1066  #define ACPI_INIT_DEVICE_INI        1
1067  
1068  typedef
1069  acpi_status (*acpi_exception_handler) (acpi_status aml_status,
1070  				       acpi_name name,
1071  				       u16 opcode,
1072  				       u32 aml_offset, void *context);
1073  
1074  /* Table Event handler (Load, load_table, etc.) and types */
1075  
1076  typedef
1077  acpi_status (*acpi_table_handler) (u32 event, void *table, void *context);
1078  
1079  /* Table Event Types */
1080  
1081  #define ACPI_TABLE_EVENT_LOAD           0x0
1082  #define ACPI_TABLE_EVENT_UNLOAD         0x1
1083  #define ACPI_TABLE_EVENT_INSTALL        0x2
1084  #define ACPI_TABLE_EVENT_UNINSTALL      0x3
1085  #define ACPI_NUM_TABLE_EVENTS           4
1086  
1087  /* Address Spaces (For Operation Regions) */
1088  
1089  typedef
1090  acpi_status (*acpi_adr_space_handler) (u32 function,
1091  				       acpi_physical_address address,
1092  				       u32 bit_width,
1093  				       u64 *value,
1094  				       void *handler_context,
1095  				       void *region_context);
1096  
1097  #define ACPI_DEFAULT_HANDLER            NULL
1098  
1099  /* Special Context data for generic_serial_bus/general_purpose_io (ACPI 5.0) */
1100  
1101  struct acpi_connection_info {
1102  	u8 *connection;
1103  	u16 length;
1104  	u8 access_length;
1105  };
1106  
1107  typedef
1108  acpi_status (*acpi_adr_space_setup) (acpi_handle region_handle,
1109  				     u32 function,
1110  				     void *handler_context,
1111  				     void **region_context);
1112  
1113  #define ACPI_REGION_ACTIVATE    0
1114  #define ACPI_REGION_DEACTIVATE  1
1115  
1116  typedef
1117  acpi_status (*acpi_walk_callback) (acpi_handle object,
1118  				   u32 nesting_level,
1119  				   void *context, void **return_value);
1120  
1121  typedef
1122  u32 (*acpi_interface_handler) (acpi_string interface_name, u32 supported);
1123  
1124  /* Interrupt handler return values */
1125  
1126  #define ACPI_INTERRUPT_NOT_HANDLED      0x00
1127  #define ACPI_INTERRUPT_HANDLED          0x01
1128  
1129  /* GPE handler return values */
1130  
1131  #define ACPI_REENABLE_GPE               0x80
1132  
1133  /* Length of 32-bit EISAID values when converted back to a string */
1134  
1135  #define ACPI_EISAID_STRING_SIZE         8	/* Includes null terminator */
1136  
1137  /* Length of UUID (string) values */
1138  
1139  #define ACPI_UUID_LENGTH                16
1140  
1141  /* Length of 3-byte PCI class code values when converted back to a string */
1142  
1143  #define ACPI_PCICLS_STRING_SIZE         7	/* Includes null terminator */
1144  
1145  /* Structures used for device/processor HID, UID, CID */
1146  
1147  struct acpi_pnp_device_id {
1148  	u32 length;		/* Length of string + null */
1149  	char *string;
1150  };
1151  
1152  struct acpi_pnp_device_id_list {
1153  	u32 count;		/* Number of IDs in Ids array */
1154  	u32 list_size;		/* Size of list, including ID strings */
1155  	struct acpi_pnp_device_id ids[];	/* ID array */
1156  };
1157  
1158  /*
1159   * Structure returned from acpi_get_object_info.
1160   * Optimized for both 32-bit and 64-bit builds.
1161   */
1162  struct acpi_device_info {
1163  	u32 info_size;		/* Size of info, including ID strings */
1164  	u32 name;		/* ACPI object Name */
1165  	acpi_object_type type;	/* ACPI object Type */
1166  	u8 param_count;		/* If a method, required parameter count */
1167  	u16 valid;		/* Indicates which optional fields are valid */
1168  	u8 flags;		/* Miscellaneous info */
1169  	u8 highest_dstates[4];	/* _sx_d values: 0xFF indicates not valid */
1170  	u8 lowest_dstates[5];	/* _sx_w values: 0xFF indicates not valid */
1171  	u64 address;	/* _ADR value */
1172  	struct acpi_pnp_device_id hardware_id;	/* _HID value */
1173  	struct acpi_pnp_device_id unique_id;	/* _UID value */
1174  	struct acpi_pnp_device_id class_code;	/* _CLS value */
1175  	struct acpi_pnp_device_id_list compatible_id_list;	/* _CID list <must be last> */
1176  };
1177  
1178  /* Values for Flags field above (acpi_get_object_info) */
1179  
1180  #define ACPI_PCI_ROOT_BRIDGE            0x01
1181  
1182  /* Flags for Valid field above (acpi_get_object_info) */
1183  
1184  #define ACPI_VALID_ADR                  0x0002
1185  #define ACPI_VALID_HID                  0x0004
1186  #define ACPI_VALID_UID                  0x0008
1187  #define ACPI_VALID_CID                  0x0020
1188  #define ACPI_VALID_CLS                  0x0040
1189  #define ACPI_VALID_SXDS                 0x0100
1190  #define ACPI_VALID_SXWS                 0x0200
1191  
1192  /* Flags for _STA method */
1193  
1194  #define ACPI_STA_DEVICE_PRESENT         0x01
1195  #define ACPI_STA_DEVICE_ENABLED         0x02
1196  #define ACPI_STA_DEVICE_UI              0x04
1197  #define ACPI_STA_DEVICE_FUNCTIONING     0x08
1198  #define ACPI_STA_DEVICE_OK              0x08	/* Synonym */
1199  #define ACPI_STA_BATTERY_PRESENT        0x10
1200  
1201  /* Context structs for address space handlers */
1202  
1203  struct acpi_pci_id {
1204  	u16 segment;
1205  	u16 bus;
1206  	u16 device;
1207  	u16 function;
1208  };
1209  
1210  struct acpi_mem_mapping {
1211  	acpi_physical_address physical_address;
1212  	u8 *logical_address;
1213  	acpi_size length;
1214  	struct acpi_mem_mapping *next_mm;
1215  };
1216  
1217  struct acpi_mem_space_context {
1218  	u32 length;
1219  	acpi_physical_address address;
1220  	struct acpi_mem_mapping *cur_mm;
1221  	struct acpi_mem_mapping *first_mm;
1222  };
1223  
1224  /*
1225   * struct acpi_memory_list is used only if the ACPICA local cache is enabled
1226   */
1227  struct acpi_memory_list {
1228  	const char *list_name;
1229  	void *list_head;
1230  	u16 object_size;
1231  	u16 max_depth;
1232  	u16 current_depth;
1233  
1234  #ifdef ACPI_DBG_TRACK_ALLOCATIONS
1235  
1236  	/* Statistics for debug memory tracking only */
1237  
1238  	u32 total_allocated;
1239  	u32 total_freed;
1240  	u32 max_occupied;
1241  	u32 total_size;
1242  	u32 current_total_size;
1243  	u32 requests;
1244  	u32 hits;
1245  #endif
1246  };
1247  
1248  /* Definitions of trace event types */
1249  
1250  typedef enum {
1251  	ACPI_TRACE_AML_METHOD,
1252  	ACPI_TRACE_AML_OPCODE,
1253  	ACPI_TRACE_AML_REGION
1254  } acpi_trace_event_type;
1255  
1256  /* Definitions of _OSI support */
1257  
1258  #define ACPI_VENDOR_STRINGS                 0x01
1259  #define ACPI_FEATURE_STRINGS                0x02
1260  #define ACPI_ENABLE_INTERFACES              0x00
1261  #define ACPI_DISABLE_INTERFACES             0x04
1262  
1263  #define ACPI_DISABLE_ALL_VENDOR_STRINGS     (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS)
1264  #define ACPI_DISABLE_ALL_FEATURE_STRINGS    (ACPI_DISABLE_INTERFACES | ACPI_FEATURE_STRINGS)
1265  #define ACPI_DISABLE_ALL_STRINGS            (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
1266  #define ACPI_ENABLE_ALL_VENDOR_STRINGS      (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS)
1267  #define ACPI_ENABLE_ALL_FEATURE_STRINGS     (ACPI_ENABLE_INTERFACES | ACPI_FEATURE_STRINGS)
1268  #define ACPI_ENABLE_ALL_STRINGS             (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
1269  
1270  #define ACPI_OSI_WIN_2000               0x01
1271  #define ACPI_OSI_WIN_XP                 0x02
1272  #define ACPI_OSI_WIN_XP_SP1             0x03
1273  #define ACPI_OSI_WINSRV_2003            0x04
1274  #define ACPI_OSI_WIN_XP_SP2             0x05
1275  #define ACPI_OSI_WINSRV_2003_SP1        0x06
1276  #define ACPI_OSI_WIN_VISTA              0x07
1277  #define ACPI_OSI_WINSRV_2008            0x08
1278  #define ACPI_OSI_WIN_VISTA_SP1          0x09
1279  #define ACPI_OSI_WIN_VISTA_SP2          0x0A
1280  #define ACPI_OSI_WIN_7                  0x0B
1281  #define ACPI_OSI_WIN_8                  0x0C
1282  #define ACPI_OSI_WIN_8_1                0x0D
1283  #define ACPI_OSI_WIN_10                 0x0E
1284  #define ACPI_OSI_WIN_10_RS1             0x0F
1285  #define ACPI_OSI_WIN_10_RS2             0x10
1286  #define ACPI_OSI_WIN_10_RS3             0x11
1287  #define ACPI_OSI_WIN_10_RS4             0x12
1288  #define ACPI_OSI_WIN_10_RS5             0x13
1289  #define ACPI_OSI_WIN_10_19H1            0x14
1290  
1291  /* Definitions of getopt */
1292  
1293  #define ACPI_OPT_END                    -1
1294  
1295  #endif				/* __ACTYPES_H__ */
1296