167754Smsmith/******************************************************************************
267754Smsmith *
367754Smsmith * Name: acmacros.h - C macros for the entire subsystem.
467754Smsmith *
567754Smsmith *****************************************************************************/
667754Smsmith
7217365Sjkim/*
8245582Sjkim * Copyright (C) 2000 - 2013, Intel Corp.
970243Smsmith * All rights reserved.
1067754Smsmith *
11217365Sjkim * Redistribution and use in source and binary forms, with or without
12217365Sjkim * modification, are permitted provided that the following conditions
13217365Sjkim * are met:
14217365Sjkim * 1. Redistributions of source code must retain the above copyright
15217365Sjkim *    notice, this list of conditions, and the following disclaimer,
16217365Sjkim *    without modification.
17217365Sjkim * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18217365Sjkim *    substantially similar to the "NO WARRANTY" disclaimer below
19217365Sjkim *    ("Disclaimer") and any redistribution must be conditioned upon
20217365Sjkim *    including a substantially similar Disclaimer requirement for further
21217365Sjkim *    binary redistribution.
22217365Sjkim * 3. Neither the names of the above-listed copyright holders nor the names
23217365Sjkim *    of any contributors may be used to endorse or promote products derived
24217365Sjkim *    from this software without specific prior written permission.
2567754Smsmith *
26217365Sjkim * Alternatively, this software may be distributed under the terms of the
27217365Sjkim * GNU General Public License ("GPL") version 2 as published by the Free
28217365Sjkim * Software Foundation.
2967754Smsmith *
30217365Sjkim * NO WARRANTY
31217365Sjkim * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32217365Sjkim * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33217365Sjkim * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34217365Sjkim * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35217365Sjkim * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36217365Sjkim * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37217365Sjkim * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38217365Sjkim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39217365Sjkim * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40217365Sjkim * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41217365Sjkim * POSSIBILITY OF SUCH DAMAGES.
42217365Sjkim */
4367754Smsmith
4467754Smsmith#ifndef __ACMACROS_H__
4567754Smsmith#define __ACMACROS_H__
4667754Smsmith
4780062Smsmith
4867754Smsmith/*
49193267Sjkim * Extract data using a pointer. Any more than a byte and we
50167802Sjkim * get into potential aligment issues -- see the STORE macros below.
51167802Sjkim * Use with care.
52123315Snjl */
53243347Sjkim#define ACPI_CAST8(ptr)                 ACPI_CAST_PTR (UINT8, (ptr))
54243347Sjkim#define ACPI_CAST16(ptr)                ACPI_CAST_PTR (UINT16, (ptr))
55243347Sjkim#define ACPI_CAST32(ptr)                ACPI_CAST_PTR (UINT32, (ptr))
56243347Sjkim#define ACPI_CAST64(ptr)                ACPI_CAST_PTR (UINT64, (ptr))
57243347Sjkim#define ACPI_GET8(ptr)                  (*ACPI_CAST8 (ptr))
58243347Sjkim#define ACPI_GET16(ptr)                 (*ACPI_CAST16 (ptr))
59243347Sjkim#define ACPI_GET32(ptr)                 (*ACPI_CAST32 (ptr))
60243347Sjkim#define ACPI_GET64(ptr)                 (*ACPI_CAST64 (ptr))
61243347Sjkim#define ACPI_SET8(ptr, val)             (*ACPI_CAST8 (ptr) = (UINT8) (val))
62243347Sjkim#define ACPI_SET16(ptr, val)            (*ACPI_CAST16 (ptr) = (UINT16) (val))
63243347Sjkim#define ACPI_SET32(ptr, val)            (*ACPI_CAST32 (ptr) = (UINT32) (val))
64243347Sjkim#define ACPI_SET64(ptr, val)            (*ACPI_CAST64 (ptr) = (UINT64) (val))
6567754Smsmith
66167802Sjkim/*
67193267Sjkim * printf() format helpers
68167802Sjkim */
6967754Smsmith
70193267Sjkim/* Split 64-bit integer into two 32-bit values. Use with %8.8X%8.8X */
7177424Smsmith
72193267Sjkim#define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i), ACPI_LODWORD(i)
7391116Smsmith
74193267Sjkim#if ACPI_MACHINE_WIDTH == 64
75193267Sjkim#define ACPI_FORMAT_NATIVE_UINT(i)      ACPI_FORMAT_UINT64(i)
7691116Smsmith#else
77193267Sjkim#define ACPI_FORMAT_NATIVE_UINT(i)      0, (i)
7891116Smsmith#endif
7991116Smsmith
80193267Sjkim
8167754Smsmith/*
8267754Smsmith * Macros for moving data around to/from buffers that are possibly unaligned.
8367754Smsmith * If the hardware supports the transfer of unaligned data, just do the store.
8467754Smsmith * Otherwise, we have to move one byte at a time.
8567754Smsmith */
86117521Snjl#ifdef ACPI_BIG_ENDIAN
87117521Snjl/*
88117521Snjl * Macros for big-endian machines
89117521Snjl */
9067754Smsmith
91117521Snjl/* These macros reverse the bytes during the move, converting little-endian to big endian */
92117521Snjl
93117521Snjl                                                     /* Big Endian      <==        Little Endian */
94117521Snjl                                                     /*  Hi...Lo                     Lo...Hi     */
95117521Snjl/* 16-bit source, 16/32/64 destination */
96117521Snjl
97193267Sjkim#define ACPI_MOVE_16_TO_16(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[1];\
98117521Snjl                                         ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[0];}
99117521Snjl
100193267Sjkim#define ACPI_MOVE_16_TO_32(d, s)        {(*(UINT32 *)(void *)(d))=0;\
101117521Snjl                                           ((UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
102117521Snjl                                           ((UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
103117521Snjl
104193267Sjkim#define ACPI_MOVE_16_TO_64(d, s)        {(*(UINT64 *)(void *)(d))=0;\
105117521Snjl                                           ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
106117521Snjl                                           ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
107117521Snjl
108117521Snjl/* 32-bit source, 16/32/64 destination */
109117521Snjl
110193267Sjkim#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
111117521Snjl
112193267Sjkim#define ACPI_MOVE_32_TO_32(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[3];\
113117521Snjl                                         ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[2];\
114117521Snjl                                         ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
115117521Snjl                                         ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
116117521Snjl
117193267Sjkim#define ACPI_MOVE_32_TO_64(d, s)        {(*(UINT64 *)(void *)(d))=0;\
118117521Snjl                                           ((UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
119117521Snjl                                           ((UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
120117521Snjl                                           ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
121117521Snjl                                           ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
122117521Snjl
123117521Snjl/* 64-bit source, 16/32/64 destination */
124117521Snjl
125193267Sjkim#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
126117521Snjl
127193267Sjkim#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
128117521Snjl
129193267Sjkim#define ACPI_MOVE_64_TO_64(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[7];\
130117521Snjl                                         ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[6];\
131117521Snjl                                         ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[5];\
132117521Snjl                                         ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[4];\
133117521Snjl                                         ((  UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
134117521Snjl                                         ((  UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
135117521Snjl                                         ((  UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
136117521Snjl                                         ((  UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
13767754Smsmith#else
13867754Smsmith/*
139117521Snjl * Macros for little-endian machines
140117521Snjl */
141117521Snjl
142151937Sjkim#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
143117521Snjl
144117521Snjl/* The hardware supports unaligned transfers, just do the little-endian move */
145117521Snjl
146117521Snjl/* 16-bit source, 16/32/64 destination */
147117521Snjl
148193267Sjkim#define ACPI_MOVE_16_TO_16(d, s)        *(UINT16 *)(void *)(d) = *(UINT16 *)(void *)(s)
149193267Sjkim#define ACPI_MOVE_16_TO_32(d, s)        *(UINT32 *)(void *)(d) = *(UINT16 *)(void *)(s)
150193267Sjkim#define ACPI_MOVE_16_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT16 *)(void *)(s)
151117521Snjl
152117521Snjl/* 32-bit source, 16/32/64 destination */
153117521Snjl
154193267Sjkim#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
155193267Sjkim#define ACPI_MOVE_32_TO_32(d, s)        *(UINT32 *)(void *)(d) = *(UINT32 *)(void *)(s)
156193267Sjkim#define ACPI_MOVE_32_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT32 *)(void *)(s)
157117521Snjl
158117521Snjl/* 64-bit source, 16/32/64 destination */
159117521Snjl
160193267Sjkim#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
161193267Sjkim#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
162193267Sjkim#define ACPI_MOVE_64_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT64 *)(void *)(s)
163117521Snjl
164117521Snjl#else
165117521Snjl/*
166193267Sjkim * The hardware does not support unaligned transfers. We must move the
167193267Sjkim * data one byte at a time. These macros work whether the source or
168193267Sjkim * the destination (or both) is/are unaligned. (Little-endian move)
16967754Smsmith */
17067754Smsmith
171117521Snjl/* 16-bit source, 16/32/64 destination */
17267754Smsmith
173193267Sjkim#define ACPI_MOVE_16_TO_16(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
174117521Snjl                                         ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];}
17567754Smsmith
176193267Sjkim#define ACPI_MOVE_16_TO_32(d, s)        {(*(UINT32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
177193267Sjkim#define ACPI_MOVE_16_TO_64(d, s)        {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
17867754Smsmith
179117521Snjl/* 32-bit source, 16/32/64 destination */
18077424Smsmith
181193267Sjkim#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
182117521Snjl
183193267Sjkim#define ACPI_MOVE_32_TO_32(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
184117521Snjl                                         ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
185117521Snjl                                         ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
186117521Snjl                                         ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];}
187117521Snjl
188193267Sjkim#define ACPI_MOVE_32_TO_64(d, s)        {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
189117521Snjl
190117521Snjl/* 64-bit source, 16/32/64 destination */
191117521Snjl
192193267Sjkim#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
193193267Sjkim#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
194193267Sjkim#define ACPI_MOVE_64_TO_64(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
195117521Snjl                                         ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
196117521Snjl                                         ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
197117521Snjl                                         ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];\
198117521Snjl                                         ((  UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[4];\
199117521Snjl                                         ((  UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[5];\
200117521Snjl                                         ((  UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[6];\
201117521Snjl                                         ((  UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[7];}
20267754Smsmith#endif
203117521Snjl#endif
20467754Smsmith
20567754Smsmith
20667754Smsmith/*
20767754Smsmith * Fast power-of-two math macros for non-optimized compilers
20867754Smsmith */
209193267Sjkim#define _ACPI_DIV(value, PowerOf2)      ((UINT32) ((value) >> (PowerOf2)))
210193267Sjkim#define _ACPI_MUL(value, PowerOf2)      ((UINT32) ((value) << (PowerOf2)))
211193267Sjkim#define _ACPI_MOD(value, Divisor)       ((UINT32) ((value) & ((Divisor) -1)))
21267754Smsmith
213193267Sjkim#define ACPI_DIV_2(a)                   _ACPI_DIV(a, 1)
214193267Sjkim#define ACPI_MUL_2(a)                   _ACPI_MUL(a, 1)
215193267Sjkim#define ACPI_MOD_2(a)                   _ACPI_MOD(a, 2)
21667754Smsmith
217193267Sjkim#define ACPI_DIV_4(a)                   _ACPI_DIV(a, 2)
218193267Sjkim#define ACPI_MUL_4(a)                   _ACPI_MUL(a, 2)
219193267Sjkim#define ACPI_MOD_4(a)                   _ACPI_MOD(a, 4)
22067754Smsmith
221193267Sjkim#define ACPI_DIV_8(a)                   _ACPI_DIV(a, 3)
222193267Sjkim#define ACPI_MUL_8(a)                   _ACPI_MUL(a, 3)
223193267Sjkim#define ACPI_MOD_8(a)                   _ACPI_MOD(a, 8)
22467754Smsmith
225193267Sjkim#define ACPI_DIV_16(a)                  _ACPI_DIV(a, 4)
226193267Sjkim#define ACPI_MUL_16(a)                  _ACPI_MUL(a, 4)
227193267Sjkim#define ACPI_MOD_16(a)                  _ACPI_MOD(a, 16)
22867754Smsmith
229193267Sjkim#define ACPI_DIV_32(a)                  _ACPI_DIV(a, 5)
230193267Sjkim#define ACPI_MUL_32(a)                  _ACPI_MUL(a, 5)
231193267Sjkim#define ACPI_MOD_32(a)                  _ACPI_MOD(a, 32)
23267754Smsmith
23367754Smsmith/*
23467754Smsmith * Rounding macros (Power of two boundaries only)
23567754Smsmith */
236193267Sjkim#define ACPI_ROUND_DOWN(value, boundary)    (((ACPI_SIZE)(value)) & \
237193267Sjkim                                                (~(((ACPI_SIZE) boundary)-1)))
23867754Smsmith
239193267Sjkim#define ACPI_ROUND_UP(value, boundary)      ((((ACPI_SIZE)(value)) + \
240193267Sjkim                                                (((ACPI_SIZE) boundary)-1)) & \
241193267Sjkim                                                (~(((ACPI_SIZE) boundary)-1)))
24267754Smsmith
243193267Sjkim/* Note: sizeof(ACPI_SIZE) evaluates to either 4 or 8 (32- vs 64-bit mode) */
24467754Smsmith
245193267Sjkim#define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a, 4)
246193267Sjkim#define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a, 8)
247193267Sjkim#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a, sizeof(ACPI_SIZE))
24867754Smsmith
249193267Sjkim#define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a, 4)
250193267Sjkim#define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a, 8)
251193267Sjkim#define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a, sizeof(ACPI_SIZE))
25277424Smsmith
253167802Sjkim#define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
254167802Sjkim#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))
25569450Smsmith
256167802Sjkim#define ACPI_ROUND_UP_TO_1K(a)              (((a) + 1023) >> 10)
257167802Sjkim
25877424Smsmith/* Generic (non-power-of-two) rounding */
25977424Smsmith
260193267Sjkim#define ACPI_ROUND_UP_TO(value, boundary)   (((value) + ((boundary)-1)) / (boundary))
26177424Smsmith
262193267Sjkim#define ACPI_IS_MISALIGNED(value)           (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1))
263167802Sjkim
26483174Smsmith/*
26577424Smsmith * Bitmask creation
26677424Smsmith * Bit positions start at zero.
26777424Smsmith * MASK_BITS_ABOVE creates a mask starting AT the position and above
26877424Smsmith * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
26977424Smsmith */
270202771Sjkim#define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_UINT64_MAX) << ((UINT32) (position))))
271202771Sjkim#define ACPI_MASK_BITS_BELOW(position)      ((ACPI_UINT64_MAX) << ((UINT32) (position)))
27277424Smsmith
27391116Smsmith/* Bitfields within ACPI registers */
27491116Smsmith
275239340Sjkim#define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask) \
276239340Sjkim    ((Val << Pos) & Mask)
27791116Smsmith
278239340Sjkim#define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val) \
279239340Sjkim    Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)
280167802Sjkim
281239340Sjkim#define ACPI_INSERT_BITS(Target, Mask, Source) \
282239340Sjkim    Target = ((Target & (~(Mask))) | (Source & Mask))
283239340Sjkim
284239340Sjkim/* Generic bitfield macros and masks */
285239340Sjkim
286239340Sjkim#define ACPI_GET_BITS(SourcePtr, Position, Mask) \
287239340Sjkim    ((*SourcePtr >> Position) & Mask)
288239340Sjkim
289239340Sjkim#define ACPI_SET_BITS(TargetPtr, Position, Mask, Value) \
290239340Sjkim    (*TargetPtr |= ((Value & Mask) << Position))
291239340Sjkim
292239340Sjkim#define ACPI_1BIT_MASK      0x00000001
293239340Sjkim#define ACPI_2BIT_MASK      0x00000003
294239340Sjkim#define ACPI_3BIT_MASK      0x00000007
295239340Sjkim#define ACPI_4BIT_MASK      0x0000000F
296239340Sjkim#define ACPI_5BIT_MASK      0x0000001F
297239340Sjkim#define ACPI_6BIT_MASK      0x0000003F
298239340Sjkim#define ACPI_7BIT_MASK      0x0000007F
299239340Sjkim#define ACPI_8BIT_MASK      0x000000FF
300239340Sjkim#define ACPI_16BIT_MASK     0x0000FFFF
301239340Sjkim#define ACPI_24BIT_MASK     0x00FFFFFF
302239340Sjkim
303243347Sjkim/* Macros to extract flag bits from position zero */
304243347Sjkim
305243347Sjkim#define ACPI_GET_1BIT_FLAG(Value)                   ((Value) & ACPI_1BIT_MASK)
306243347Sjkim#define ACPI_GET_2BIT_FLAG(Value)                   ((Value) & ACPI_2BIT_MASK)
307243347Sjkim#define ACPI_GET_3BIT_FLAG(Value)                   ((Value) & ACPI_3BIT_MASK)
308243347Sjkim#define ACPI_GET_4BIT_FLAG(Value)                   ((Value) & ACPI_4BIT_MASK)
309243347Sjkim
310243347Sjkim/* Macros to extract flag bits from position one and above */
311243347Sjkim
312243347Sjkim#define ACPI_EXTRACT_1BIT_FLAG(Field, Position)     (ACPI_GET_1BIT_FLAG ((Field) >> Position))
313243347Sjkim#define ACPI_EXTRACT_2BIT_FLAG(Field, Position)     (ACPI_GET_2BIT_FLAG ((Field) >> Position))
314243347Sjkim#define ACPI_EXTRACT_3BIT_FLAG(Field, Position)     (ACPI_GET_3BIT_FLAG ((Field) >> Position))
315243347Sjkim#define ACPI_EXTRACT_4BIT_FLAG(Field, Position)     (ACPI_GET_4BIT_FLAG ((Field) >> Position))
316243347Sjkim
317245582Sjkim/* ACPI Pathname helpers */
318245582Sjkim
319245582Sjkim#define ACPI_IS_ROOT_PREFIX(c)      ((c) == (UINT8) 0x5C) /* Backslash */
320245582Sjkim#define ACPI_IS_PARENT_PREFIX(c)    ((c) == (UINT8) 0x5E) /* Carat */
321245582Sjkim#define ACPI_IS_PATH_SEPARATOR(c)   ((c) == (UINT8) 0x2E) /* Period (dot) */
322245582Sjkim
32367754Smsmith/*
324238381Sjkim * An object of type ACPI_NAMESPACE_NODE can appear in some contexts
325238381Sjkim * where a pointer to an object of type ACPI_OPERAND_OBJECT can also
326193267Sjkim * appear. This macro is used to distinguish them.
32767754Smsmith *
328246040Sjkim * The "DescriptorType" field is the second field in both structures.
32967754Smsmith */
330246040Sjkim#define ACPI_GET_DESCRIPTOR_PTR(d)      (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer)
331246040Sjkim#define ACPI_SET_DESCRIPTOR_PTR(d, p)   (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer = (p))
332167802Sjkim#define ACPI_GET_DESCRIPTOR_TYPE(d)     (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType)
333246040Sjkim#define ACPI_SET_DESCRIPTOR_TYPE(d, t)  (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType = (t))
33467754Smsmith
33567754Smsmith/*
33667754Smsmith * Macros for the master AML opcode table
33767754Smsmith */
338193267Sjkim#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
339193267Sjkim#define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
340193267Sjkim    {Name, (UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
34167754Smsmith#else
342193267Sjkim#define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
343193267Sjkim    {(UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
34467754Smsmith#endif
34567754Smsmith
34667754Smsmith#define ARG_TYPE_WIDTH                  5
34767754Smsmith#define ARG_1(x)                        ((UINT32)(x))
34867754Smsmith#define ARG_2(x)                        ((UINT32)(x) << (1 * ARG_TYPE_WIDTH))
34967754Smsmith#define ARG_3(x)                        ((UINT32)(x) << (2 * ARG_TYPE_WIDTH))
35067754Smsmith#define ARG_4(x)                        ((UINT32)(x) << (3 * ARG_TYPE_WIDTH))
35167754Smsmith#define ARG_5(x)                        ((UINT32)(x) << (4 * ARG_TYPE_WIDTH))
35267754Smsmith#define ARG_6(x)                        ((UINT32)(x) << (5 * ARG_TYPE_WIDTH))
35367754Smsmith
35467754Smsmith#define ARGI_LIST1(a)                   (ARG_1(a))
355193267Sjkim#define ARGI_LIST2(a, b)                (ARG_1(b)|ARG_2(a))
356193267Sjkim#define ARGI_LIST3(a, b, c)             (ARG_1(c)|ARG_2(b)|ARG_3(a))
357193267Sjkim#define ARGI_LIST4(a, b, c, d)          (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
358193267Sjkim#define ARGI_LIST5(a, b, c, d, e)       (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
359193267Sjkim#define ARGI_LIST6(a, b, c, d, e, f)    (ARG_1(f)|ARG_2(e)|ARG_3(d)|ARG_4(c)|ARG_5(b)|ARG_6(a))
36067754Smsmith
36167754Smsmith#define ARGP_LIST1(a)                   (ARG_1(a))
362193267Sjkim#define ARGP_LIST2(a, b)                (ARG_1(a)|ARG_2(b))
363193267Sjkim#define ARGP_LIST3(a, b, c)             (ARG_1(a)|ARG_2(b)|ARG_3(c))
364193267Sjkim#define ARGP_LIST4(a, b, c, d)          (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
365193267Sjkim#define ARGP_LIST5(a, b, c, d, e)       (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
366193267Sjkim#define ARGP_LIST6(a, b, c, d, e, f)    (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)|ARG_6(f))
36767754Smsmith
36867754Smsmith#define GET_CURRENT_ARG_TYPE(List)      (List & ((UINT32) 0x1F))
36967754Smsmith#define INCREMENT_ARG_LIST(List)        (List >>= ((UINT32) ARG_TYPE_WIDTH))
37067754Smsmith
37167754Smsmith/*
372167802Sjkim * Ascii error messages can be configured out
37367754Smsmith */
374167802Sjkim#ifndef ACPI_NO_ERROR_MESSAGES
375167802Sjkim/*
376167802Sjkim * Error reporting. Callers module and line number are inserted by AE_INFO,
377167802Sjkim * the plist contains a set of parens to allow variable-length lists.
378167802Sjkim * These macros are used for both the debug and non-debug versions of the code.
379167802Sjkim */
380249663Sjkim#define ACPI_ERROR_NAMESPACE(s, e)          AcpiUtNamespaceError (AE_INFO, s, e);
381249663Sjkim#define ACPI_ERROR_METHOD(s, n, p, e)       AcpiUtMethodError (AE_INFO, s, n, p, e);
382249663Sjkim#define ACPI_WARN_PREDEFINED(plist)         AcpiUtPredefinedWarning plist
383249663Sjkim#define ACPI_INFO_PREDEFINED(plist)         AcpiUtPredefinedInfo plist
384249663Sjkim#define ACPI_BIOS_ERROR_PREDEFINED(plist)   AcpiUtPredefinedBiosError plist
38567754Smsmith
38667754Smsmith#else
38767754Smsmith
388167802Sjkim/* No error messages */
38967754Smsmith
390193267Sjkim#define ACPI_ERROR_NAMESPACE(s, e)
391193267Sjkim#define ACPI_ERROR_METHOD(s, n, p, e)
392197104Sjkim#define ACPI_WARN_PREDEFINED(plist)
393199337Sjkim#define ACPI_INFO_PREDEFINED(plist)
394249663Sjkim#define ACPI_BIOS_ERROR_PREDEFINED(plist)
39567754Smsmith
396193267Sjkim#endif /* ACPI_NO_ERROR_MESSAGES */
397193267Sjkim
398231844Sjkim#if (!ACPI_REDUCED_HARDWARE)
399231844Sjkim#define ACPI_HW_OPTIONAL_FUNCTION(addr)     addr
400231844Sjkim#else
401231844Sjkim#define ACPI_HW_OPTIONAL_FUNCTION(addr)     NULL
402231844Sjkim#endif
403231844Sjkim
404231844Sjkim
40567754Smsmith/*
40667754Smsmith * Some code only gets executed when the debugger is built in.
40767754Smsmith * Note that this is entirely independent of whether the
408102550Siwasaki * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
40967754Smsmith */
410102550Siwasaki#ifdef ACPI_DEBUGGER
41191116Smsmith#define ACPI_DEBUGGER_EXEC(a)           a
41267754Smsmith#else
41391116Smsmith#define ACPI_DEBUGGER_EXEC(a)
41467754Smsmith#endif
41567754Smsmith
41667754Smsmith
41767754Smsmith/*
418193267Sjkim * Memory allocation tracking (DEBUG ONLY)
41967754Smsmith */
420193267Sjkim#define ACPI_MEM_PARAMETERS         _COMPONENT, _AcpiModuleName, __LINE__
42167754Smsmith
42280062Smsmith#ifndef ACPI_DBG_TRACK_ALLOCATIONS
42377424Smsmith
42480062Smsmith/* Memory allocation */
42577424Smsmith
426193267Sjkim#define ACPI_ALLOCATE(a)            AcpiUtAllocate((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
427193267Sjkim#define ACPI_ALLOCATE_ZEROED(a)     AcpiUtAllocateZeroed((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
428167802Sjkim#define ACPI_FREE(a)                AcpiOsFree(a)
42982367Smsmith#define ACPI_MEM_TRACKING(a)
43080062Smsmith
43177424Smsmith#else
43277424Smsmith
43380062Smsmith/* Memory allocation */
43480062Smsmith
435193267Sjkim#define ACPI_ALLOCATE(a)            AcpiUtAllocateAndTrack((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
436193267Sjkim#define ACPI_ALLOCATE_ZEROED(a)     AcpiUtAllocateZeroedAndTrack((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
437193267Sjkim#define ACPI_FREE(a)                AcpiUtFreeAndTrack(a, ACPI_MEM_PARAMETERS)
438167802Sjkim#define ACPI_MEM_TRACKING(a)        a
43980062Smsmith
44080062Smsmith#endif /* ACPI_DBG_TRACK_ALLOCATIONS */
44177424Smsmith
442193267Sjkim
443193267Sjkim/*
444193267Sjkim * Macros used for ACPICA utilities only
445193267Sjkim */
446193267Sjkim
447193267Sjkim/* Generate a UUID */
448193267Sjkim
449193267Sjkim#define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
450193267Sjkim    (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
451193267Sjkim    (b) & 0xFF, ((b) >> 8) & 0xFF, \
452193267Sjkim    (c) & 0xFF, ((c) >> 8) & 0xFF, \
453193267Sjkim    (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
454193267Sjkim
455193267Sjkim#define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
456193267Sjkim
457193267Sjkim
45867754Smsmith#endif /* ACMACROS_H */
459