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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Name: acmacros.h - C macros for the entire subsystem. | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
c8100dc4 | 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
1da177e4 LT |
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 | ||
1da177e4 | 47 | /* |
c9bdd805 | 48 | * Extract data using a pointer. Any more than a byte and we |
defba1d8 BM |
49 | * get into potential aligment issues -- see the STORE macros below. |
50 | * Use with care. | |
1da177e4 | 51 | */ |
57bf6aef LZ |
52 | #define ACPI_CAST8(ptr) ACPI_CAST_PTR (u8, (ptr)) |
53 | #define ACPI_CAST16(ptr) ACPI_CAST_PTR (u16, (ptr)) | |
54 | #define ACPI_CAST32(ptr) ACPI_CAST_PTR (u32, (ptr)) | |
55 | #define ACPI_CAST64(ptr) ACPI_CAST_PTR (u64, (ptr)) | |
56 | #define ACPI_GET8(ptr) (*ACPI_CAST8 (ptr)) | |
57 | #define ACPI_GET16(ptr) (*ACPI_CAST16 (ptr)) | |
58 | #define ACPI_GET32(ptr) (*ACPI_CAST32 (ptr)) | |
59 | #define ACPI_GET64(ptr) (*ACPI_CAST64 (ptr)) | |
60 | #define ACPI_SET8(ptr, val) (*ACPI_CAST8 (ptr) = (u8) (val)) | |
61 | #define ACPI_SET16(ptr, val) (*ACPI_CAST16 (ptr) = (u16) (val)) | |
62 | #define ACPI_SET32(ptr, val) (*ACPI_CAST32 (ptr) = (u32) (val)) | |
63 | #define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (u64) (val)) | |
1da177e4 | 64 | |
7823665e | 65 | /* |
1d0a0b2f | 66 | * printf() format helper. This macros is a workaround for the difficulties |
c03775c0 BM |
67 | * with emitting 64-bit integers and 64-bit pointers with the same code |
68 | * for both 32-bit and 64-bit hosts. | |
7823665e | 69 | */ |
c9bdd805 | 70 | #define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i) |
7823665e | 71 | |
1da177e4 LT |
72 | /* |
73 | * Macros for moving data around to/from buffers that are possibly unaligned. | |
74 | * If the hardware supports the transfer of unaligned data, just do the store. | |
75 | * Otherwise, we have to move one byte at a time. | |
76 | */ | |
77 | #ifdef ACPI_BIG_ENDIAN | |
78 | /* | |
79 | * Macros for big-endian machines | |
80 | */ | |
81 | ||
1da177e4 LT |
82 | /* These macros reverse the bytes during the move, converting little-endian to big endian */ |
83 | ||
86ff0e50 LZ |
84 | /* Big Endian <== Little Endian */ |
85 | /* Hi...Lo Lo...Hi */ | |
1da177e4 LT |
86 | /* 16-bit source, 16/32/64 destination */ |
87 | ||
c9bdd805 | 88 | #define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\ |
86ff0e50 | 89 | (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];} |
1da177e4 | 90 | |
c9bdd805 | 91 | #define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d))=0;\ |
86ff0e50 LZ |
92 | ((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\ |
93 | ((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];} | |
1da177e4 | 94 | |
c9bdd805 | 95 | #define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\ |
86ff0e50 LZ |
96 | ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\ |
97 | ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];} | |
1da177e4 LT |
98 | |
99 | /* 32-bit source, 16/32/64 destination */ | |
100 | ||
c9bdd805 | 101 | #define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ |
1da177e4 | 102 | |
c9bdd805 | 103 | #define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\ |
86ff0e50 LZ |
104 | (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\ |
105 | (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\ | |
106 | (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];} | |
1da177e4 | 107 | |
c9bdd805 | 108 | #define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\ |
1da177e4 LT |
109 | ((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\ |
110 | ((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\ | |
111 | ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\ | |
112 | ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];} | |
113 | ||
114 | /* 64-bit source, 16/32/64 destination */ | |
115 | ||
c9bdd805 | 116 | #define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ |
1da177e4 | 117 | |
c9bdd805 | 118 | #define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */ |
1da177e4 | 119 | |
c9bdd805 | 120 | #define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\ |
1da177e4 LT |
121 | (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\ |
122 | (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\ | |
123 | (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\ | |
124 | (( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\ | |
125 | (( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\ | |
126 | (( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\ | |
127 | (( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];} | |
128 | #else | |
129 | /* | |
130 | * Macros for little-endian machines | |
131 | */ | |
132 | ||
0897831b | 133 | #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED |
1da177e4 LT |
134 | |
135 | /* The hardware supports unaligned transfers, just do the little-endian move */ | |
136 | ||
1da177e4 LT |
137 | /* 16-bit source, 16/32/64 destination */ |
138 | ||
c9bdd805 BM |
139 | #define ACPI_MOVE_16_TO_16(d, s) *(u16 *)(void *)(d) = *(u16 *)(void *)(s) |
140 | #define ACPI_MOVE_16_TO_32(d, s) *(u32 *)(void *)(d) = *(u16 *)(void *)(s) | |
141 | #define ACPI_MOVE_16_TO_64(d, s) *(u64 *)(void *)(d) = *(u16 *)(void *)(s) | |
1da177e4 LT |
142 | |
143 | /* 32-bit source, 16/32/64 destination */ | |
144 | ||
c9bdd805 BM |
145 | #define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ |
146 | #define ACPI_MOVE_32_TO_32(d, s) *(u32 *)(void *)(d) = *(u32 *)(void *)(s) | |
147 | #define ACPI_MOVE_32_TO_64(d, s) *(u64 *)(void *)(d) = *(u32 *)(void *)(s) | |
1da177e4 LT |
148 | |
149 | /* 64-bit source, 16/32/64 destination */ | |
150 | ||
c9bdd805 BM |
151 | #define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ |
152 | #define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */ | |
153 | #define ACPI_MOVE_64_TO_64(d, s) *(u64 *)(void *)(d) = *(u64 *)(void *)(s) | |
1da177e4 LT |
154 | |
155 | #else | |
156 | /* | |
c9bdd805 BM |
157 | * The hardware does not support unaligned transfers. We must move the |
158 | * data one byte at a time. These macros work whether the source or | |
50df4d8b | 159 | * the destination (or both) is/are unaligned. (Little-endian move) |
1da177e4 LT |
160 | */ |
161 | ||
162 | /* 16-bit source, 16/32/64 destination */ | |
163 | ||
c9bdd805 | 164 | #define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\ |
1da177e4 LT |
165 | (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];} |
166 | ||
c9bdd805 BM |
167 | #define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);} |
168 | #define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);} | |
1da177e4 LT |
169 | |
170 | /* 32-bit source, 16/32/64 destination */ | |
171 | ||
c9bdd805 | 172 | #define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ |
1da177e4 | 173 | |
c9bdd805 | 174 | #define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\ |
1da177e4 LT |
175 | (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\ |
176 | (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\ | |
177 | (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];} | |
178 | ||
c9bdd805 | 179 | #define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);} |
1da177e4 LT |
180 | |
181 | /* 64-bit source, 16/32/64 destination */ | |
182 | ||
c9bdd805 BM |
183 | #define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ |
184 | #define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */ | |
185 | #define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\ | |
1da177e4 LT |
186 | (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\ |
187 | (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\ | |
188 | (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\ | |
189 | (( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\ | |
190 | (( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\ | |
191 | (( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\ | |
192 | (( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];} | |
193 | #endif | |
194 | #endif | |
195 | ||
1da177e4 LT |
196 | /* |
197 | * Fast power-of-two math macros for non-optimized compilers | |
198 | */ | |
86ff0e50 LZ |
199 | #define _ACPI_DIV(value, power_of2) ((u32) ((value) >> (power_of2))) |
200 | #define _ACPI_MUL(value, power_of2) ((u32) ((value) << (power_of2))) | |
201 | #define _ACPI_MOD(value, divisor) ((u32) ((value) & ((divisor) -1))) | |
1da177e4 | 202 | |
c9bdd805 BM |
203 | #define ACPI_DIV_2(a) _ACPI_DIV(a, 1) |
204 | #define ACPI_MUL_2(a) _ACPI_MUL(a, 1) | |
205 | #define ACPI_MOD_2(a) _ACPI_MOD(a, 2) | |
1da177e4 | 206 | |
c9bdd805 BM |
207 | #define ACPI_DIV_4(a) _ACPI_DIV(a, 2) |
208 | #define ACPI_MUL_4(a) _ACPI_MUL(a, 2) | |
209 | #define ACPI_MOD_4(a) _ACPI_MOD(a, 4) | |
1da177e4 | 210 | |
c9bdd805 BM |
211 | #define ACPI_DIV_8(a) _ACPI_DIV(a, 3) |
212 | #define ACPI_MUL_8(a) _ACPI_MUL(a, 3) | |
213 | #define ACPI_MOD_8(a) _ACPI_MOD(a, 8) | |
1da177e4 | 214 | |
c9bdd805 BM |
215 | #define ACPI_DIV_16(a) _ACPI_DIV(a, 4) |
216 | #define ACPI_MUL_16(a) _ACPI_MUL(a, 4) | |
217 | #define ACPI_MOD_16(a) _ACPI_MOD(a, 16) | |
1da177e4 | 218 | |
c9bdd805 BM |
219 | #define ACPI_DIV_32(a) _ACPI_DIV(a, 5) |
220 | #define ACPI_MUL_32(a) _ACPI_MUL(a, 5) | |
221 | #define ACPI_MOD_32(a) _ACPI_MOD(a, 32) | |
28f55ebc | 222 | |
27629196 BM |
223 | /* Test for ASCII character */ |
224 | ||
225 | #define ACPI_IS_ASCII(c) ((c) < 0x80) | |
226 | ||
88606a2b BM |
227 | /* Signed integers */ |
228 | ||
229 | #define ACPI_SIGN_POSITIVE 0 | |
230 | #define ACPI_SIGN_NEGATIVE 1 | |
231 | ||
1da177e4 LT |
232 | /* |
233 | * Rounding macros (Power of two boundaries only) | |
234 | */ | |
86ff0e50 LZ |
235 | #define ACPI_ROUND_DOWN(value, boundary) (((acpi_size)(value)) & \ |
236 | (~(((acpi_size) boundary)-1))) | |
b8e4d893 | 237 | |
86ff0e50 LZ |
238 | #define ACPI_ROUND_UP(value, boundary) ((((acpi_size)(value)) + \ |
239 | (((acpi_size) boundary)-1)) & \ | |
240 | (~(((acpi_size) boundary)-1))) | |
1da177e4 | 241 | |
67a119f9 | 242 | /* Note: sizeof(acpi_size) evaluates to either 4 or 8 (32- vs 64-bit mode) */ |
1da177e4 | 243 | |
c9bdd805 BM |
244 | #define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4) |
245 | #define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a, 8) | |
246 | #define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a, sizeof(acpi_size)) | |
1da177e4 | 247 | |
c9bdd805 BM |
248 | #define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4) |
249 | #define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8) | |
250 | #define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(acpi_size)) | |
1da177e4 | 251 | |
ea936b78 BM |
252 | #define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7) |
253 | #define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a)) | |
254 | ||
255 | #define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10) | |
1da177e4 LT |
256 | |
257 | /* Generic (non-power-of-two) rounding */ | |
258 | ||
c9bdd805 | 259 | #define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary)) |
ea936b78 | 260 | |
86ff0e50 | 261 | #define ACPI_IS_MISALIGNED(value) (((acpi_size) value) & (sizeof(acpi_size)-1)) |
1da177e4 LT |
262 | |
263 | /* | |
264 | * Bitmask creation | |
265 | * Bit positions start at zero. | |
266 | * MASK_BITS_ABOVE creates a mask starting AT the position and above | |
267 | * MASK_BITS_BELOW creates a mask starting one bit BELOW the position | |
268 | */ | |
5df7e6cb BM |
269 | #define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((u32) (position)))) |
270 | #define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((u32) (position))) | |
1da177e4 | 271 | |
1da177e4 LT |
272 | /* Bitfields within ACPI registers */ |
273 | ||
be030a57 BM |
274 | #define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \ |
275 | ((val << pos) & mask) | |
1da177e4 | 276 | |
be030a57 BM |
277 | #define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \ |
278 | reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask) | |
279 | ||
280 | #define ACPI_INSERT_BITS(target, mask, source) \ | |
281 | target = ((target & (~(mask))) | (source & mask)) | |
282 | ||
283 | /* Generic bitfield macros and masks */ | |
284 | ||
285 | #define ACPI_GET_BITS(source_ptr, position, mask) \ | |
286 | ((*source_ptr >> position) & mask) | |
287 | ||
288 | #define ACPI_SET_BITS(target_ptr, position, mask, value) \ | |
289 | (*target_ptr |= ((value & mask) << position)) | |
290 | ||
291 | #define ACPI_1BIT_MASK 0x00000001 | |
292 | #define ACPI_2BIT_MASK 0x00000003 | |
293 | #define ACPI_3BIT_MASK 0x00000007 | |
294 | #define ACPI_4BIT_MASK 0x0000000F | |
295 | #define ACPI_5BIT_MASK 0x0000001F | |
296 | #define ACPI_6BIT_MASK 0x0000003F | |
297 | #define ACPI_7BIT_MASK 0x0000007F | |
298 | #define ACPI_8BIT_MASK 0x000000FF | |
299 | #define ACPI_16BIT_MASK 0x0000FFFF | |
300 | #define ACPI_24BIT_MASK 0x00FFFFFF | |
967440e3 | 301 | |
2f3faaba BM |
302 | /* Macros to extract flag bits from position zero */ |
303 | ||
304 | #define ACPI_GET_1BIT_FLAG(value) ((value) & ACPI_1BIT_MASK) | |
305 | #define ACPI_GET_2BIT_FLAG(value) ((value) & ACPI_2BIT_MASK) | |
306 | #define ACPI_GET_3BIT_FLAG(value) ((value) & ACPI_3BIT_MASK) | |
307 | #define ACPI_GET_4BIT_FLAG(value) ((value) & ACPI_4BIT_MASK) | |
308 | ||
309 | /* Macros to extract flag bits from position one and above */ | |
310 | ||
311 | #define ACPI_EXTRACT_1BIT_FLAG(field, position) (ACPI_GET_1BIT_FLAG ((field) >> position)) | |
312 | #define ACPI_EXTRACT_2BIT_FLAG(field, position) (ACPI_GET_2BIT_FLAG ((field) >> position)) | |
313 | #define ACPI_EXTRACT_3BIT_FLAG(field, position) (ACPI_GET_3BIT_FLAG ((field) >> position)) | |
314 | #define ACPI_EXTRACT_4BIT_FLAG(field, position) (ACPI_GET_4BIT_FLAG ((field) >> position)) | |
315 | ||
04a81dce BM |
316 | /* ACPI Pathname helpers */ |
317 | ||
318 | #define ACPI_IS_ROOT_PREFIX(c) ((c) == (u8) 0x5C) /* Backslash */ | |
319 | #define ACPI_IS_PARENT_PREFIX(c) ((c) == (u8) 0x5E) /* Carat */ | |
320 | #define ACPI_IS_PATH_SEPARATOR(c) ((c) == (u8) 0x2E) /* Period (dot) */ | |
321 | ||
1da177e4 | 322 | /* |
cf48958e BM |
323 | * An object of type struct acpi_namespace_node can appear in some contexts |
324 | * where a pointer to an object of type union acpi_operand_object can also | |
c9bdd805 | 325 | * appear. This macro is used to distinguish them. |
1da177e4 | 326 | * |
1af89271 | 327 | * The "DescriptorType" field is the second field in both structures. |
1da177e4 | 328 | */ |
1af89271 | 329 | #define ACPI_GET_DESCRIPTOR_PTR(d) (((union acpi_descriptor *)(void *)(d))->common.common_pointer) |
f1778eb1 | 330 | #define ACPI_SET_DESCRIPTOR_PTR(d, p) (((union acpi_descriptor *)(void *)(d))->common.common_pointer = (p)) |
61686124 | 331 | #define ACPI_GET_DESCRIPTOR_TYPE(d) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type) |
f1778eb1 | 332 | #define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = (t)) |
1da177e4 | 333 | |
1da177e4 LT |
334 | /* |
335 | * Macros for the master AML opcode table | |
336 | */ | |
c9bdd805 BM |
337 | #if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT) |
338 | #define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \ | |
339 | {name, (u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type} | |
1da177e4 | 340 | #else |
c9bdd805 BM |
341 | #define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \ |
342 | {(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type} | |
1da177e4 LT |
343 | #endif |
344 | ||
1da177e4 LT |
345 | #define ARG_TYPE_WIDTH 5 |
346 | #define ARG_1(x) ((u32)(x)) | |
347 | #define ARG_2(x) ((u32)(x) << (1 * ARG_TYPE_WIDTH)) | |
348 | #define ARG_3(x) ((u32)(x) << (2 * ARG_TYPE_WIDTH)) | |
349 | #define ARG_4(x) ((u32)(x) << (3 * ARG_TYPE_WIDTH)) | |
350 | #define ARG_5(x) ((u32)(x) << (4 * ARG_TYPE_WIDTH)) | |
351 | #define ARG_6(x) ((u32)(x) << (5 * ARG_TYPE_WIDTH)) | |
352 | ||
353 | #define ARGI_LIST1(a) (ARG_1(a)) | |
c9bdd805 BM |
354 | #define ARGI_LIST2(a, b) (ARG_1(b)|ARG_2(a)) |
355 | #define ARGI_LIST3(a, b, c) (ARG_1(c)|ARG_2(b)|ARG_3(a)) | |
356 | #define ARGI_LIST4(a, b, c, d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a)) | |
357 | #define ARGI_LIST5(a, b, c, d, e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a)) | |
358 | #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)) | |
1da177e4 LT |
359 | |
360 | #define ARGP_LIST1(a) (ARG_1(a)) | |
c9bdd805 BM |
361 | #define ARGP_LIST2(a, b) (ARG_1(a)|ARG_2(b)) |
362 | #define ARGP_LIST3(a, b, c) (ARG_1(a)|ARG_2(b)|ARG_3(c)) | |
363 | #define ARGP_LIST4(a, b, c, d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)) | |
364 | #define ARGP_LIST5(a, b, c, d, e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)) | |
365 | #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)) | |
1da177e4 LT |
366 | |
367 | #define GET_CURRENT_ARG_TYPE(list) (list & ((u32) 0x1F)) | |
368 | #define INCREMENT_ARG_LIST(list) (list >>= ((u32) ARG_TYPE_WIDTH)) | |
369 | ||
1da177e4 | 370 | /* |
4a90c7e8 | 371 | * Ascii error messages can be configured out |
1da177e4 | 372 | */ |
4a90c7e8 | 373 | #ifndef ACPI_NO_ERROR_MESSAGES |
4a90c7e8 | 374 | /* |
b8e4d893 BM |
375 | * Error reporting. Callers module and line number are inserted by AE_INFO, |
376 | * the plist contains a set of parens to allow variable-length lists. | |
377 | * These macros are used for both the debug and non-debug versions of the code. | |
4a90c7e8 | 378 | */ |
e1405ca5 BM |
379 | #define ACPI_ERROR_NAMESPACE(s, e) acpi_ut_namespace_error (AE_INFO, s, e); |
380 | #define ACPI_ERROR_METHOD(s, n, p, e) acpi_ut_method_error (AE_INFO, s, n, p, e); | |
381 | #define ACPI_WARN_PREDEFINED(plist) acpi_ut_predefined_warning plist | |
382 | #define ACPI_INFO_PREDEFINED(plist) acpi_ut_predefined_info plist | |
383 | #define ACPI_BIOS_ERROR_PREDEFINED(plist) acpi_ut_predefined_bios_error plist | |
b8e4d893 | 384 | |
1da177e4 LT |
385 | #else |
386 | ||
4a90c7e8 | 387 | /* No error messages */ |
1da177e4 | 388 | |
c9bdd805 BM |
389 | #define ACPI_ERROR_NAMESPACE(s, e) |
390 | #define ACPI_ERROR_METHOD(s, n, p, e) | |
0444e8f6 | 391 | #define ACPI_WARN_PREDEFINED(plist) |
7df200cd | 392 | #define ACPI_INFO_PREDEFINED(plist) |
e1405ca5 | 393 | #define ACPI_BIOS_ERROR_PREDEFINED(plist) |
7df200cd | 394 | |
86ff0e50 | 395 | #endif /* ACPI_NO_ERROR_MESSAGES */ |
1da177e4 | 396 | |
72a8887a BM |
397 | #if (!ACPI_REDUCED_HARDWARE) |
398 | #define ACPI_HW_OPTIONAL_FUNCTION(addr) addr | |
399 | #else | |
400 | #define ACPI_HW_OPTIONAL_FUNCTION(addr) NULL | |
401 | #endif | |
402 | ||
86ff0e50 LZ |
403 | /* |
404 | * Macros used for ACPICA utilities only | |
405 | */ | |
406 | ||
407 | /* Generate a UUID */ | |
408 | ||
409 | #define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ | |
410 | (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \ | |
411 | (b) & 0xFF, ((b) >> 8) & 0xFF, \ | |
412 | (c) & 0xFF, ((c) >> 8) & 0xFF, \ | |
413 | (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) | |
414 | ||
415 | #define ACPI_IS_OCTAL_DIGIT(d) (((char)(d) >= '0') && ((char)(d) <= '7')) | |
8bd108d1 | 416 | |
4be44fcd | 417 | #endif /* ACMACROS_H */ |