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Examples
acmacros.h
Go to the documentation of this file.
1
/******************************************************************************
2
*
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* Name: acmacros.h - C macros for the entire subsystem.
4
*
5
*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2022, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACMACROS_H__
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#define __ACMACROS_H__
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47
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/*
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* Extract data using a pointer. Any more than a byte and we
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* get into potential alignment issues -- see the STORE macros below.
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* Use with care.
52
*/
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#define ACPI_CAST8(ptr) ACPI_CAST_PTR (UINT8, (ptr))
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#define ACPI_CAST16(ptr) ACPI_CAST_PTR (UINT16, (ptr))
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#define ACPI_CAST32(ptr) ACPI_CAST_PTR (UINT32, (ptr))
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#define ACPI_CAST64(ptr) ACPI_CAST_PTR (UINT64, (ptr))
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#define ACPI_GET8(ptr) (*ACPI_CAST8 (ptr))
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#define ACPI_GET16(ptr) (*ACPI_CAST16 (ptr))
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#define ACPI_GET32(ptr) (*ACPI_CAST32 (ptr))
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#define ACPI_GET64(ptr) (*ACPI_CAST64 (ptr))
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#define ACPI_SET8(ptr, val) (*ACPI_CAST8 (ptr) = (UINT8) (val))
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#define ACPI_SET16(ptr, val) (*ACPI_CAST16 (ptr) = (UINT16) (val))
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#define ACPI_SET32(ptr, val) (*ACPI_CAST32 (ptr) = (UINT32) (val))
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#define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (UINT64) (val))
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66
/*
67
* printf() format helper. This macro is a workaround for the difficulties
68
* with emitting 64-bit integers and 64-bit pointers with the same code
69
* for both 32-bit and 64-bit hosts.
70
*/
71
#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i)
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73
74
/*
75
* Macros for moving data around to/from buffers that are possibly unaligned.
76
* If the hardware supports the transfer of unaligned data, just do the store.
77
* Otherwise, we have to move one byte at a time.
78
*/
79
#ifdef ACPI_BIG_ENDIAN
80
/*
81
* Macros for big-endian machines
82
*/
83
84
/* These macros reverse the bytes during the move, converting little-endian to big endian */
85
86
/* Big Endian <== Little Endian */
87
/* Hi...Lo Lo...Hi */
88
/* 16-bit source, 16/32/64 destination */
89
90
#define ACPI_MOVE_16_TO_16(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[1];\
91
(( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[0];}
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93
#define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d))=0;\
94
((UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
95
((UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
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97
#define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\
98
((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
99
((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
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101
/* 32-bit source, 16/32/64 destination */
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103
#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s)
/* Truncate to 16 */
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105
#define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[3];\
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(( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[2];\
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(( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
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(( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
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#define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\
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((UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
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((UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
113
((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
114
((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
115
116
/* 64-bit source, 16/32/64 destination */
117
118
#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s)
/* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s)
/* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[7];\
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(( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[6];\
124
(( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[5];\
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(( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[4];\
126
(( UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
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(( UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
128
(( UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
129
(( UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
130
#else
131
/*
132
* Macros for little-endian machines
133
*/
134
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#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
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137
/* The hardware supports unaligned transfers, just do the little-endian move */
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d, s) *(UINT16 *)(void *)(d) = *(UINT16 *)(void *)(s)
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#define ACPI_MOVE_16_TO_32(d, s) *(UINT32 *)(void *)(d) = *(UINT16 *)(void *)(s)
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#define ACPI_MOVE_16_TO_64(d, s) *(UINT64 *)(void *)(d) = *(UINT16 *)(void *)(s)
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s)
/* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d, s) *(UINT32 *)(void *)(d) = *(UINT32 *)(void *)(s)
149
#define ACPI_MOVE_32_TO_64(d, s) *(UINT64 *)(void *)(d) = *(UINT32 *)(void *)(s)
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151
/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s)
/* Truncate to 16 */
154
#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s)
/* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d, s) *(UINT64 *)(void *)(d) = *(UINT64 *)(void *)(s)
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157
#else
158
/*
159
* The hardware does not support unaligned transfers. We must move the
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* data one byte at a time. These macros work whether the source or
161
* the destination (or both) is/are unaligned. (Little-endian move)
162
*/
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
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(( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];}
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#define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
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#define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s)
/* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
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(( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
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(( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
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(( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];}
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#define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
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/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s)
/* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s)
/* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
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(( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
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(( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
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(( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];\
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(( UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[4];\
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(( UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[5];\
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(( UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[6];\
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(( UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[7];}
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#endif
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#endif
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199
/*
200
* Fast power-of-two math macros for non-optimized compilers
201
*/
202
#define _ACPI_DIV(value, PowerOf2) ((UINT32) ((value) >> (PowerOf2)))
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#define _ACPI_MUL(value, PowerOf2) ((UINT32) ((value) << (PowerOf2)))
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#define _ACPI_MOD(value, Divisor) ((UINT32) ((value) & ((Divisor) -1)))
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#define ACPI_DIV_2(a) _ACPI_DIV(a, 1)
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#define ACPI_MUL_2(a) _ACPI_MUL(a, 1)
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#define ACPI_MOD_2(a) _ACPI_MOD(a, 2)
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#define ACPI_DIV_4(a) _ACPI_DIV(a, 2)
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#define ACPI_MUL_4(a) _ACPI_MUL(a, 2)
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#define ACPI_MOD_4(a) _ACPI_MOD(a, 4)
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#define ACPI_DIV_8(a) _ACPI_DIV(a, 3)
215
#define ACPI_MUL_8(a) _ACPI_MUL(a, 3)
216
#define ACPI_MOD_8(a) _ACPI_MOD(a, 8)
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#define ACPI_DIV_16(a) _ACPI_DIV(a, 4)
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#define ACPI_MUL_16(a) _ACPI_MUL(a, 4)
220
#define ACPI_MOD_16(a) _ACPI_MOD(a, 16)
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#define ACPI_DIV_32(a) _ACPI_DIV(a, 5)
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#define ACPI_MUL_32(a) _ACPI_MUL(a, 5)
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#define ACPI_MOD_32(a) _ACPI_MOD(a, 32)
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/* Test for ASCII character */
227
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#define ACPI_IS_ASCII(c) ((c) < 0x80)
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/* Signed integers */
231
232
#define ACPI_SIGN_POSITIVE 0
233
#define ACPI_SIGN_NEGATIVE 1
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235
236
/*
237
* Rounding macros (Power of two boundaries only)
238
*/
239
#define ACPI_ROUND_DOWN(value, boundary) (((ACPI_SIZE)(value)) & \
240
(~(((ACPI_SIZE) boundary)-1)))
241
242
#define ACPI_ROUND_UP(value, boundary) ((((ACPI_SIZE)(value)) + \
243
(((ACPI_SIZE) boundary)-1)) & \
244
(~(((ACPI_SIZE) boundary)-1)))
245
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/* Note: sizeof(ACPI_SIZE) evaluates to either 4 or 8 (32- vs 64-bit mode) */
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#define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4)
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#define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a, 8)
250
#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a, sizeof(ACPI_SIZE))
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#define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4)
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#define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8)
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#define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(ACPI_SIZE))
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#define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7)
257
#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a))
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259
#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
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261
/* Generic (non-power-of-two) rounding */
262
263
#define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary))
264
265
#define ACPI_IS_MISALIGNED(value) (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1))
266
267
/* Generic bit manipulation */
268
269
#ifndef ACPI_USE_NATIVE_BIT_FINDER
270
271
#define __ACPI_FIND_LAST_BIT_2(a, r) ((((UINT8) (a)) & 0x02) ? (r)+1 : (r))
272
#define __ACPI_FIND_LAST_BIT_4(a, r) ((((UINT8) (a)) & 0x0C) ? \
273
__ACPI_FIND_LAST_BIT_2 ((a)>>2, (r)+2) : \
274
__ACPI_FIND_LAST_BIT_2 ((a), (r)))
275
#define __ACPI_FIND_LAST_BIT_8(a, r) ((((UINT8) (a)) & 0xF0) ? \
276
__ACPI_FIND_LAST_BIT_4 ((a)>>4, (r)+4) : \
277
__ACPI_FIND_LAST_BIT_4 ((a), (r)))
278
#define __ACPI_FIND_LAST_BIT_16(a, r) ((((UINT16) (a)) & 0xFF00) ? \
279
__ACPI_FIND_LAST_BIT_8 ((a)>>8, (r)+8) : \
280
__ACPI_FIND_LAST_BIT_8 ((a), (r)))
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#define __ACPI_FIND_LAST_BIT_32(a, r) ((((UINT32) (a)) & 0xFFFF0000) ? \
282
__ACPI_FIND_LAST_BIT_16 ((a)>>16, (r)+16) : \
283
__ACPI_FIND_LAST_BIT_16 ((a), (r)))
284
#define __ACPI_FIND_LAST_BIT_64(a, r) ((((UINT64) (a)) & 0xFFFFFFFF00000000) ? \
285
__ACPI_FIND_LAST_BIT_32 ((a)>>32, (r)+32) : \
286
__ACPI_FIND_LAST_BIT_32 ((a), (r)))
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288
#define ACPI_FIND_LAST_BIT_8(a) ((a) ? __ACPI_FIND_LAST_BIT_8 (a, 1) : 0)
289
#define ACPI_FIND_LAST_BIT_16(a) ((a) ? __ACPI_FIND_LAST_BIT_16 (a, 1) : 0)
290
#define ACPI_FIND_LAST_BIT_32(a) ((a) ? __ACPI_FIND_LAST_BIT_32 (a, 1) : 0)
291
#define ACPI_FIND_LAST_BIT_64(a) ((a) ? __ACPI_FIND_LAST_BIT_64 (a, 1) : 0)
292
293
#define __ACPI_FIND_FIRST_BIT_2(a, r) ((((UINT8) (a)) & 0x01) ? (r) : (r)+1)
294
#define __ACPI_FIND_FIRST_BIT_4(a, r) ((((UINT8) (a)) & 0x03) ? \
295
__ACPI_FIND_FIRST_BIT_2 ((a), (r)) : \
296
__ACPI_FIND_FIRST_BIT_2 ((a)>>2, (r)+2))
297
#define __ACPI_FIND_FIRST_BIT_8(a, r) ((((UINT8) (a)) & 0x0F) ? \
298
__ACPI_FIND_FIRST_BIT_4 ((a), (r)) : \
299
__ACPI_FIND_FIRST_BIT_4 ((a)>>4, (r)+4))
300
#define __ACPI_FIND_FIRST_BIT_16(a, r) ((((UINT16) (a)) & 0x00FF) ? \
301
__ACPI_FIND_FIRST_BIT_8 ((a), (r)) : \
302
__ACPI_FIND_FIRST_BIT_8 ((a)>>8, (r)+8))
303
#define __ACPI_FIND_FIRST_BIT_32(a, r) ((((UINT32) (a)) & 0x0000FFFF) ? \
304
__ACPI_FIND_FIRST_BIT_16 ((a), (r)) : \
305
__ACPI_FIND_FIRST_BIT_16 ((a)>>16, (r)+16))
306
#define __ACPI_FIND_FIRST_BIT_64(a, r) ((((UINT64) (a)) & 0x00000000FFFFFFFF) ? \
307
__ACPI_FIND_FIRST_BIT_32 ((a), (r)) : \
308
__ACPI_FIND_FIRST_BIT_32 ((a)>>32, (r)+32))
309
310
#define ACPI_FIND_FIRST_BIT_8(a) ((a) ? __ACPI_FIND_FIRST_BIT_8 (a, 1) : 0)
311
#define ACPI_FIND_FIRST_BIT_16(a) ((a) ? __ACPI_FIND_FIRST_BIT_16 (a, 1) : 0)
312
#define ACPI_FIND_FIRST_BIT_32(a) ((a) ? __ACPI_FIND_FIRST_BIT_32 (a, 1) : 0)
313
#define ACPI_FIND_FIRST_BIT_64(a) ((a) ? __ACPI_FIND_FIRST_BIT_64 (a, 1) : 0)
314
315
#endif
/* ACPI_USE_NATIVE_BIT_FINDER */
316
317
/* Generic (power-of-two) rounding */
318
319
#define ACPI_ROUND_UP_POWER_OF_TWO_8(a) ((UINT8) \
320
(((UINT16) 1) << ACPI_FIND_LAST_BIT_8 ((a) - 1)))
321
#define ACPI_ROUND_DOWN_POWER_OF_TWO_8(a) ((UINT8) \
322
(((UINT16) 1) << (ACPI_FIND_LAST_BIT_8 ((a)) - 1)))
323
#define ACPI_ROUND_UP_POWER_OF_TWO_16(a) ((UINT16) \
324
(((UINT32) 1) << ACPI_FIND_LAST_BIT_16 ((a) - 1)))
325
#define ACPI_ROUND_DOWN_POWER_OF_TWO_16(a) ((UINT16) \
326
(((UINT32) 1) << (ACPI_FIND_LAST_BIT_16 ((a)) - 1)))
327
#define ACPI_ROUND_UP_POWER_OF_TWO_32(a) ((UINT32) \
328
(((UINT64) 1) << ACPI_FIND_LAST_BIT_32 ((a) - 1)))
329
#define ACPI_ROUND_DOWN_POWER_OF_TWO_32(a) ((UINT32) \
330
(((UINT64) 1) << (ACPI_FIND_LAST_BIT_32 ((a)) - 1)))
331
#define ACPI_IS_ALIGNED(a, s) (((a) & ((s) - 1)) == 0)
332
#define ACPI_IS_POWER_OF_TWO(a) ACPI_IS_ALIGNED(a, a)
333
334
/*
335
* Bitmask creation
336
* Bit positions start at zero.
337
* MASK_BITS_ABOVE creates a mask starting AT the position and above
338
* MASK_BITS_BELOW creates a mask starting one bit BELOW the position
339
* MASK_BITS_ABOVE/BELOW accepts a bit offset to create a mask
340
* MASK_BITS_ABOVE/BELOW_32/64 accepts a bit width to create a mask
341
* Note: The ACPI_INTEGER_BIT_SIZE check is used to bypass compiler
342
* differences with the shift operator
343
*/
344
#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((UINT32) (position))))
345
#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((UINT32) (position)))
346
#define ACPI_MASK_BITS_ABOVE_32(width) ((UINT32) ACPI_MASK_BITS_ABOVE(width))
347
#define ACPI_MASK_BITS_BELOW_32(width) ((UINT32) ACPI_MASK_BITS_BELOW(width))
348
#define ACPI_MASK_BITS_ABOVE_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \
349
ACPI_UINT64_MAX : \
350
ACPI_MASK_BITS_ABOVE(width))
351
#define ACPI_MASK_BITS_BELOW_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \
352
(UINT64) 0 : \
353
ACPI_MASK_BITS_BELOW(width))
354
355
/* Bitfields within ACPI registers */
356
357
#define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask) \
358
((Val << Pos) & Mask)
359
360
#define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val) \
361
Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)
362
363
#define ACPI_INSERT_BITS(Target, Mask, Source) \
364
Target = ((Target & (~(Mask))) | (Source & Mask))
365
366
/* Generic bitfield macros and masks */
367
368
#define ACPI_GET_BITS(SourcePtr, Position, Mask) \
369
((*(SourcePtr) >> (Position)) & (Mask))
370
371
#define ACPI_SET_BITS(TargetPtr, Position, Mask, Value) \
372
(*(TargetPtr) |= (((Value) & (Mask)) << (Position)))
373
374
#define ACPI_1BIT_MASK 0x00000001
375
#define ACPI_2BIT_MASK 0x00000003
376
#define ACPI_3BIT_MASK 0x00000007
377
#define ACPI_4BIT_MASK 0x0000000F
378
#define ACPI_5BIT_MASK 0x0000001F
379
#define ACPI_6BIT_MASK 0x0000003F
380
#define ACPI_7BIT_MASK 0x0000007F
381
#define ACPI_8BIT_MASK 0x000000FF
382
#define ACPI_16BIT_MASK 0x0000FFFF
383
#define ACPI_24BIT_MASK 0x00FFFFFF
384
385
/* Macros to extract flag bits from position zero */
386
387
#define ACPI_GET_1BIT_FLAG(Value) ((Value) & ACPI_1BIT_MASK)
388
#define ACPI_GET_2BIT_FLAG(Value) ((Value) & ACPI_2BIT_MASK)
389
#define ACPI_GET_3BIT_FLAG(Value) ((Value) & ACPI_3BIT_MASK)
390
#define ACPI_GET_4BIT_FLAG(Value) ((Value) & ACPI_4BIT_MASK)
391
392
/* Macros to extract flag bits from position one and above */
393
394
#define ACPI_EXTRACT_1BIT_FLAG(Field, Position) (ACPI_GET_1BIT_FLAG ((Field) >> Position))
395
#define ACPI_EXTRACT_2BIT_FLAG(Field, Position) (ACPI_GET_2BIT_FLAG ((Field) >> Position))
396
#define ACPI_EXTRACT_3BIT_FLAG(Field, Position) (ACPI_GET_3BIT_FLAG ((Field) >> Position))
397
#define ACPI_EXTRACT_4BIT_FLAG(Field, Position) (ACPI_GET_4BIT_FLAG ((Field) >> Position))
398
399
/* ACPI Pathname helpers */
400
401
#define ACPI_IS_ROOT_PREFIX(c) ((c) == (UINT8) 0x5C)
/* Backslash */
402
#define ACPI_IS_PARENT_PREFIX(c) ((c) == (UINT8) 0x5E)
/* Carat */
403
#define ACPI_IS_PATH_SEPARATOR(c) ((c) == (UINT8) 0x2E)
/* Period (dot) */
404
405
/*
406
* An object of type ACPI_NAMESPACE_NODE can appear in some contexts
407
* where a pointer to an object of type ACPI_OPERAND_OBJECT can also
408
* appear. This macro is used to distinguish them.
409
*
410
* The "DescriptorType" field is the second field in both structures.
411
*/
412
#define ACPI_GET_DESCRIPTOR_PTR(d) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer)
413
#define ACPI_SET_DESCRIPTOR_PTR(d, p) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer = (p))
414
#define ACPI_GET_DESCRIPTOR_TYPE(d) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType)
415
#define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType = (t))
416
417
/*
418
* Macros for the master AML opcode table
419
*/
420
#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
421
#define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
422
{Name, (UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
423
#else
424
#define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
425
{(UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
426
#endif
427
428
#define ARG_TYPE_WIDTH 5
429
#define ARG_1(x) ((UINT32)(x))
430
#define ARG_2(x) ((UINT32)(x) << (1 * ARG_TYPE_WIDTH))
431
#define ARG_3(x) ((UINT32)(x) << (2 * ARG_TYPE_WIDTH))
432
#define ARG_4(x) ((UINT32)(x) << (3 * ARG_TYPE_WIDTH))
433
#define ARG_5(x) ((UINT32)(x) << (4 * ARG_TYPE_WIDTH))
434
#define ARG_6(x) ((UINT32)(x) << (5 * ARG_TYPE_WIDTH))
435
436
#define ARGI_LIST1(a) (ARG_1(a))
437
#define ARGI_LIST2(a, b) (ARG_1(b)|ARG_2(a))
438
#define ARGI_LIST3(a, b, c) (ARG_1(c)|ARG_2(b)|ARG_3(a))
439
#define ARGI_LIST4(a, b, c, d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
440
#define ARGI_LIST5(a, b, c, d, e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
441
#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))
442
443
#define ARGP_LIST1(a) (ARG_1(a))
444
#define ARGP_LIST2(a, b) (ARG_1(a)|ARG_2(b))
445
#define ARGP_LIST3(a, b, c) (ARG_1(a)|ARG_2(b)|ARG_3(c))
446
#define ARGP_LIST4(a, b, c, d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
447
#define ARGP_LIST5(a, b, c, d, e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
448
#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))
449
450
#define GET_CURRENT_ARG_TYPE(List) (List & ((UINT32) 0x1F))
451
#define INCREMENT_ARG_LIST(List) (List >>= ((UINT32) ARG_TYPE_WIDTH))
452
453
/*
454
* Ascii error messages can be configured out
455
*/
456
#ifndef ACPI_NO_ERROR_MESSAGES
457
/*
458
* Error reporting. The callers module and line number are inserted by AE_INFO,
459
* the plist contains a set of parens to allow variable-length lists.
460
* These macros are used for both the debug and non-debug versions of the code.
461
*/
462
#define ACPI_ERROR_NAMESPACE(s, p, e) AcpiUtPrefixedNamespaceError (AE_INFO, s, p, e);
463
#define ACPI_ERROR_METHOD(s, n, p, e) AcpiUtMethodError (AE_INFO, s, n, p, e);
464
#define ACPI_WARN_PREDEFINED(plist) AcpiUtPredefinedWarning plist
465
#define ACPI_INFO_PREDEFINED(plist) AcpiUtPredefinedInfo plist
466
#define ACPI_BIOS_ERROR_PREDEFINED(plist) AcpiUtPredefinedBiosError plist
467
#define ACPI_ERROR_ONLY(s) s
468
469
#else
470
471
/* No error messages */
472
473
#define ACPI_ERROR_NAMESPACE(s, p, e)
474
#define ACPI_ERROR_METHOD(s, n, p, e)
475
#define ACPI_WARN_PREDEFINED(plist)
476
#define ACPI_INFO_PREDEFINED(plist)
477
#define ACPI_BIOS_ERROR_PREDEFINED(plist)
478
#define ACPI_ERROR_ONLY(s)
479
480
#endif
/* ACPI_NO_ERROR_MESSAGES */
481
482
#if (!ACPI_REDUCED_HARDWARE)
483
#define ACPI_HW_OPTIONAL_FUNCTION(addr) addr
484
#else
485
#define ACPI_HW_OPTIONAL_FUNCTION(addr) NULL
486
#endif
487
488
489
/*
490
* Macros used for ACPICA utilities only
491
*/
492
493
/* Generate a UUID */
494
495
#define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
496
(a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
497
(b) & 0xFF, ((b) >> 8) & 0xFF, \
498
(c) & 0xFF, ((c) >> 8) & 0xFF, \
499
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
500
501
#define ACPI_IS_OCTAL_DIGIT(d) (((char)(d) >= '0') && ((char)(d) <= '7'))
502
503
504
/*
505
* Macros used for the ASL-/ASL+ converter utility
506
*/
507
#ifdef ACPI_ASL_COMPILER
508
509
#define ASL_CV_LABEL_FILENODE(a) CvLabelFileNode(a);
510
#define ASL_CV_CAPTURE_COMMENTS_ONLY(a) CvCaptureCommentsOnly (a);
511
#define ASL_CV_CAPTURE_COMMENTS(a) CvCaptureComments (a);
512
#define ASL_CV_TRANSFER_COMMENTS(a) CvTransferComments (a);
513
#define ASL_CV_CLOSE_PAREN(a,b) CvCloseParenWriteComment(a,b);
514
#define ASL_CV_CLOSE_BRACE(a,b) CvCloseBraceWriteComment(a,b);
515
#define ASL_CV_SWITCH_FILES(a,b) CvSwitchFiles(a,b);
516
#define ASL_CV_CLEAR_OP_COMMENTS(a) CvClearOpComments(a);
517
#define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d) CvPrintOneCommentType (a,b,c,d);
518
#define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b) CvPrintOneCommentList (a,b);
519
#define ASL_CV_FILE_HAS_SWITCHED(a) CvFileHasSwitched(a)
520
#define ASL_CV_INIT_FILETREE(a,b) CvInitFileTree(a,b);
521
522
#else
523
524
#define ASL_CV_LABEL_FILENODE(a)
525
#define ASL_CV_CAPTURE_COMMENTS_ONLY(a)
526
#define ASL_CV_CAPTURE_COMMENTS(a)
527
#define ASL_CV_TRANSFER_COMMENTS(a)
528
#define ASL_CV_CLOSE_PAREN(a,b) AcpiOsPrintf (")"
);
529
#define ASL_CV_CLOSE_BRACE(a,b) AcpiOsPrintf ("}"
);
530
#define ASL_CV_SWITCH_FILES(a,b)
531
#define ASL_CV_CLEAR_OP_COMMENTS(a)
532
#define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d)
533
#define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b)
534
#define ASL_CV_FILE_HAS_SWITCHED(a) 0
535
#define ASL_CV_INIT_FILETREE(a,b)
536
537
#endif
538
539
#endif
/* ACMACROS_H */
drivers
bus
acpi
acpica
include
acmacros.h
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