1/******************************************************************************
2 *
3 * Name: acmacros.h - C macros for the entire subsystem.
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2019, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#ifndef __ACMACROS_H__
45#define __ACMACROS_H__
46
47
48/*
49 * Extract data using a pointer. Any more than a byte and we
50 * get into potential alignment issues -- see the STORE macros below.
51 * Use with care.
52 */
53#define ACPI_CAST8(ptr) ACPI_CAST_PTR (UINT8, (ptr))
54#define ACPI_CAST16(ptr) ACPI_CAST_PTR (UINT16, (ptr))
55#define ACPI_CAST32(ptr) ACPI_CAST_PTR (UINT32, (ptr))
56#define ACPI_CAST64(ptr) ACPI_CAST_PTR (UINT64, (ptr))
57#define ACPI_GET8(ptr) (*ACPI_CAST8 (ptr))
58#define ACPI_GET16(ptr) (*ACPI_CAST16 (ptr))
59#define ACPI_GET32(ptr) (*ACPI_CAST32 (ptr))
60#define ACPI_GET64(ptr) (*ACPI_CAST64 (ptr))
61#define ACPI_SET8(ptr, val) (*ACPI_CAST8 (ptr) = (UINT8) (val))
62#define ACPI_SET16(ptr, val) (*ACPI_CAST16 (ptr) = (UINT16) (val))
63#define ACPI_SET32(ptr, val) (*ACPI_CAST32 (ptr) = (UINT32) (val))
64#define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (UINT64) (val))
65
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)
72
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] = ((const UINT8 *)(const void *)(s))[1];\
91 (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[0];}
92
93#define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d))=0;\
94 ((UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[1];\
95 ((UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[0];}
96
97#define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\
98 ((UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[1];\
99 ((UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const void *)(s))[0];}
100
101/* 32-bit source, 16/32/64 destination */
102
103#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
104
105#define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[3];\
106 (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[2];\
107 (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[1];\
108 (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[0];}
109
110#define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\
111 ((UINT8 *)(void *)(d))[4] = ((const UINT8 *)(const void *)(s))[3];\
112 ((UINT8 *)(void *)(d))[5] = ((const UINT8 *)(const void *)(s))[2];\
113 ((UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[1];\
114 ((UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const 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 */
119
120#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
121
122#define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[7];\
123 (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[6];\
124 (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[5];\
125 (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[4];\
126 (( UINT8 *)(void *)(d))[4] = ((const UINT8 *)(const void *)(s))[3];\
127 (( UINT8 *)(void *)(d))[5] = ((const UINT8 *)(const void *)(s))[2];\
128 (( UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[1];\
129 (( UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const void *)(s))[0];}
130#else
131/*
132 * Macros for little-endian machines
133 */
134
135#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
136
137/* The hardware supports unaligned transfers, just do the little-endian move */
138
139/* 16-bit source, 16/32/64 destination */
140
141#define ACPI_MOVE_16_TO_16(d, s) *(UINT16 *)(void *)(d) = *(const UINT16 *)(const void *)(s)
142#define ACPI_MOVE_16_TO_32(d, s) *(UINT32 *)(void *)(d) = *(const UINT16 *)(const void *)(s)
143#define ACPI_MOVE_16_TO_64(d, s) *(UINT64 *)(void *)(d) = *(const UINT16 *)(const void *)(s)
144
145/* 32-bit source, 16/32/64 destination */
146
147#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
148#define ACPI_MOVE_32_TO_32(d, s) *(UINT32 *)(void *)(d) = *(const UINT32 *)(const void *)(s)
149#define ACPI_MOVE_32_TO_64(d, s) *(UINT64 *)(void *)(d) = *(const UINT32 *)(const void *)(s)
150
151/* 64-bit source, 16/32/64 destination */
152
153#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 */
155#define ACPI_MOVE_64_TO_64(d, s) *(UINT64 *)(void *)(d) = *(const UINT64 *)(const void *)(s)
156
157#else
158/*
159 * The hardware does not support unaligned transfers. We must move the
160 * 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 */
163
164/* 16-bit source, 16/32/64 destination */
165
166#define ACPI_MOVE_16_TO_16(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[0];\
167 (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[1];}
168
169#define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
170#define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
171
172/* 32-bit source, 16/32/64 destination */
173
174#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
175
176#define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[0];\
177 (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[1];\
178 (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[2];\
179 (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[3];}
180
181#define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
182
183/* 64-bit source, 16/32/64 destination */
184
185#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
186#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
187#define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[0];\
188 (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[1];\
189 (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[2];\
190 (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[3];\
191 (( UINT8 *)(void *)(d))[4] = ((const UINT8 *)(const void *)(s))[4];\
192 (( UINT8 *)(void *)(d))[5] = ((const UINT8 *)(const void *)(s))[5];\
193 (( UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[6];\
194 (( UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const void *)(s))[7];}
195#endif
196#endif
197
198
199/*
200 * Fast power-of-two math macros for non-optimized compilers
201 */
202#define _ACPI_DIV(value, PowerOf2) ((UINT32) ((value) >> (PowerOf2)))
203#define _ACPI_MUL(value, PowerOf2) ((UINT32) ((value) << (PowerOf2)))
204#define _ACPI_MOD(value, Divisor) ((UINT32) ((value) & ((Divisor) -1)))
205
206#define ACPI_DIV_2(a) _ACPI_DIV(a, 1)
207#define ACPI_MUL_2(a) _ACPI_MUL(a, 1)
208#define ACPI_MOD_2(a) _ACPI_MOD(a, 2)
209
210#define ACPI_DIV_4(a) _ACPI_DIV(a, 2)
211#define ACPI_MUL_4(a) _ACPI_MUL(a, 2)
212#define ACPI_MOD_4(a) _ACPI_MOD(a, 4)
213
214#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)
217
218#define ACPI_DIV_16(a) _ACPI_DIV(a, 4)
219#define ACPI_MUL_16(a) _ACPI_MUL(a, 4)
220#define ACPI_MOD_16(a) _ACPI_MOD(a, 16)
221
222#define ACPI_DIV_32(a) _ACPI_DIV(a, 5)
223#define ACPI_MUL_32(a) _ACPI_MUL(a, 5)
224#define ACPI_MOD_32(a) _ACPI_MOD(a, 32)
225
226/* Test for ASCII character */
227
228#define ACPI_IS_ASCII(c) ((c) < 0x80)
229
230/* Signed integers */
231
232#define ACPI_SIGN_POSITIVE 0
233#define ACPI_SIGN_NEGATIVE 1
234
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
246/* Note: sizeof(ACPI_SIZE) evaluates to either 4 or 8 (32- vs 64-bit mode) */
247
248#define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4)
249#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))
251
252#define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4)
253#define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8)
254#define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(ACPI_SIZE))
255
256#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))
258
259#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
260
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)))
281#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)))
287
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,c) CvInitFileTree(a,b,c);
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,c)
536
537#endif
538
539#endif /* ACMACROS_H */
540