acmacros.h revision 1.9 1 1.1 jruoho /******************************************************************************
2 1.1 jruoho *
3 1.1 jruoho * Name: acmacros.h - C macros for the entire subsystem.
4 1.1 jruoho *
5 1.1 jruoho *****************************************************************************/
6 1.1 jruoho
7 1.3 jruoho /*
8 1.8 christos * Copyright (C) 2000 - 2016, Intel Corp.
9 1.1 jruoho * All rights reserved.
10 1.1 jruoho *
11 1.3 jruoho * Redistribution and use in source and binary forms, with or without
12 1.3 jruoho * modification, are permitted provided that the following conditions
13 1.3 jruoho * are met:
14 1.3 jruoho * 1. Redistributions of source code must retain the above copyright
15 1.3 jruoho * notice, this list of conditions, and the following disclaimer,
16 1.3 jruoho * without modification.
17 1.3 jruoho * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 1.3 jruoho * substantially similar to the "NO WARRANTY" disclaimer below
19 1.3 jruoho * ("Disclaimer") and any redistribution must be conditioned upon
20 1.3 jruoho * including a substantially similar Disclaimer requirement for further
21 1.3 jruoho * binary redistribution.
22 1.3 jruoho * 3. Neither the names of the above-listed copyright holders nor the names
23 1.3 jruoho * of any contributors may be used to endorse or promote products derived
24 1.3 jruoho * from this software without specific prior written permission.
25 1.3 jruoho *
26 1.3 jruoho * Alternatively, this software may be distributed under the terms of the
27 1.3 jruoho * GNU General Public License ("GPL") version 2 as published by the Free
28 1.3 jruoho * Software Foundation.
29 1.3 jruoho *
30 1.3 jruoho * NO WARRANTY
31 1.3 jruoho * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 1.3 jruoho * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 1.3 jruoho * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 1.3 jruoho * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 1.3 jruoho * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 1.3 jruoho * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 1.3 jruoho * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 1.3 jruoho * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 1.3 jruoho * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 1.3 jruoho * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 1.3 jruoho * POSSIBILITY OF SUCH DAMAGES.
42 1.3 jruoho */
43 1.1 jruoho
44 1.1 jruoho #ifndef __ACMACROS_H__
45 1.1 jruoho #define __ACMACROS_H__
46 1.1 jruoho
47 1.1 jruoho
48 1.1 jruoho /*
49 1.1 jruoho * Extract data using a pointer. Any more than a byte and we
50 1.1 jruoho * get into potential aligment issues -- see the STORE macros below.
51 1.1 jruoho * Use with care.
52 1.1 jruoho */
53 1.4 christos #define ACPI_CAST8(ptr) ACPI_CAST_PTR (UINT8, (ptr))
54 1.4 christos #define ACPI_CAST16(ptr) ACPI_CAST_PTR (UINT16, (ptr))
55 1.4 christos #define ACPI_CAST32(ptr) ACPI_CAST_PTR (UINT32, (ptr))
56 1.4 christos #define ACPI_CAST64(ptr) ACPI_CAST_PTR (UINT64, (ptr))
57 1.4 christos #define ACPI_GET8(ptr) (*ACPI_CAST8 (ptr))
58 1.4 christos #define ACPI_GET16(ptr) (*ACPI_CAST16 (ptr))
59 1.4 christos #define ACPI_GET32(ptr) (*ACPI_CAST32 (ptr))
60 1.4 christos #define ACPI_GET64(ptr) (*ACPI_CAST64 (ptr))
61 1.4 christos #define ACPI_SET8(ptr, val) (*ACPI_CAST8 (ptr) = (UINT8) (val))
62 1.4 christos #define ACPI_SET16(ptr, val) (*ACPI_CAST16 (ptr) = (UINT16) (val))
63 1.4 christos #define ACPI_SET32(ptr, val) (*ACPI_CAST32 (ptr) = (UINT32) (val))
64 1.4 christos #define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (UINT64) (val))
65 1.1 jruoho
66 1.1 jruoho /*
67 1.6 christos * printf() format helper. This macros is a workaround for the difficulties
68 1.5 christos * with emitting 64-bit integers and 64-bit pointers with the same code
69 1.5 christos * for both 32-bit and 64-bit hosts.
70 1.1 jruoho */
71 1.1 jruoho #define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i)
72 1.1 jruoho
73 1.1 jruoho
74 1.1 jruoho /*
75 1.1 jruoho * Macros for moving data around to/from buffers that are possibly unaligned.
76 1.1 jruoho * If the hardware supports the transfer of unaligned data, just do the store.
77 1.1 jruoho * Otherwise, we have to move one byte at a time.
78 1.1 jruoho */
79 1.1 jruoho #ifdef ACPI_BIG_ENDIAN
80 1.1 jruoho /*
81 1.1 jruoho * Macros for big-endian machines
82 1.1 jruoho */
83 1.1 jruoho
84 1.1 jruoho /* These macros reverse the bytes during the move, converting little-endian to big endian */
85 1.1 jruoho
86 1.1 jruoho /* Big Endian <== Little Endian */
87 1.1 jruoho /* Hi...Lo Lo...Hi */
88 1.1 jruoho /* 16-bit source, 16/32/64 destination */
89 1.1 jruoho
90 1.2 jruoho #define ACPI_MOVE_16_TO_16(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[1];\
91 1.2 jruoho (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[0];}
92 1.1 jruoho
93 1.1 jruoho #define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d))=0;\
94 1.2 jruoho ((UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[1];\
95 1.2 jruoho ((UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[0];}
96 1.1 jruoho
97 1.1 jruoho #define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\
98 1.2 jruoho ((UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[1];\
99 1.2 jruoho ((UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const void *)(s))[0];}
100 1.1 jruoho
101 1.1 jruoho /* 32-bit source, 16/32/64 destination */
102 1.1 jruoho
103 1.1 jruoho #define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
104 1.1 jruoho
105 1.2 jruoho #define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[3];\
106 1.2 jruoho (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[2];\
107 1.2 jruoho (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[1];\
108 1.2 jruoho (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[0];}
109 1.1 jruoho
110 1.1 jruoho #define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\
111 1.2 jruoho ((UINT8 *)(void *)(d))[4] = ((const UINT8 *)(const void *)(s))[3];\
112 1.2 jruoho ((UINT8 *)(void *)(d))[5] = ((const UINT8 *)(const void *)(s))[2];\
113 1.2 jruoho ((UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[1];\
114 1.2 jruoho ((UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const void *)(s))[0];}
115 1.1 jruoho
116 1.1 jruoho /* 64-bit source, 16/32/64 destination */
117 1.1 jruoho
118 1.1 jruoho #define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
119 1.1 jruoho
120 1.1 jruoho #define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
121 1.1 jruoho
122 1.2 jruoho #define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[7];\
123 1.2 jruoho (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[6];\
124 1.2 jruoho (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[5];\
125 1.2 jruoho (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[4];\
126 1.2 jruoho (( UINT8 *)(void *)(d))[4] = ((const UINT8 *)(const void *)(s))[3];\
127 1.2 jruoho (( UINT8 *)(void *)(d))[5] = ((const UINT8 *)(const void *)(s))[2];\
128 1.2 jruoho (( UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[1];\
129 1.2 jruoho (( UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const void *)(s))[0];}
130 1.1 jruoho #else
131 1.1 jruoho /*
132 1.1 jruoho * Macros for little-endian machines
133 1.1 jruoho */
134 1.1 jruoho
135 1.1 jruoho #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
136 1.1 jruoho
137 1.1 jruoho /* The hardware supports unaligned transfers, just do the little-endian move */
138 1.1 jruoho
139 1.1 jruoho /* 16-bit source, 16/32/64 destination */
140 1.1 jruoho
141 1.2 jruoho #define ACPI_MOVE_16_TO_16(d, s) *(UINT16 *)(void *)(d) = *(const UINT16 *)(const void *)(s)
142 1.2 jruoho #define ACPI_MOVE_16_TO_32(d, s) *(UINT32 *)(void *)(d) = *(const UINT16 *)(const void *)(s)
143 1.2 jruoho #define ACPI_MOVE_16_TO_64(d, s) *(UINT64 *)(void *)(d) = *(const UINT16 *)(const void *)(s)
144 1.1 jruoho
145 1.1 jruoho /* 32-bit source, 16/32/64 destination */
146 1.1 jruoho
147 1.1 jruoho #define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
148 1.2 jruoho #define ACPI_MOVE_32_TO_32(d, s) *(UINT32 *)(void *)(d) = *(const UINT32 *)(const void *)(s)
149 1.2 jruoho #define ACPI_MOVE_32_TO_64(d, s) *(UINT64 *)(void *)(d) = *(const UINT32 *)(const void *)(s)
150 1.1 jruoho
151 1.1 jruoho /* 64-bit source, 16/32/64 destination */
152 1.1 jruoho
153 1.1 jruoho #define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
154 1.1 jruoho #define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
155 1.2 jruoho #define ACPI_MOVE_64_TO_64(d, s) *(UINT64 *)(void *)(d) = *(const UINT64 *)(const void *)(s)
156 1.1 jruoho
157 1.1 jruoho #else
158 1.1 jruoho /*
159 1.1 jruoho * The hardware does not support unaligned transfers. We must move the
160 1.1 jruoho * data one byte at a time. These macros work whether the source or
161 1.1 jruoho * the destination (or both) is/are unaligned. (Little-endian move)
162 1.1 jruoho */
163 1.1 jruoho
164 1.1 jruoho /* 16-bit source, 16/32/64 destination */
165 1.1 jruoho
166 1.2 jruoho #define ACPI_MOVE_16_TO_16(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[0];\
167 1.2 jruoho (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[1];}
168 1.1 jruoho
169 1.1 jruoho #define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
170 1.1 jruoho #define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
171 1.1 jruoho
172 1.1 jruoho /* 32-bit source, 16/32/64 destination */
173 1.1 jruoho
174 1.1 jruoho #define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
175 1.1 jruoho
176 1.2 jruoho #define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[0];\
177 1.2 jruoho (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[1];\
178 1.2 jruoho (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[2];\
179 1.2 jruoho (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[3];}
180 1.1 jruoho
181 1.1 jruoho #define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
182 1.1 jruoho
183 1.1 jruoho /* 64-bit source, 16/32/64 destination */
184 1.1 jruoho
185 1.1 jruoho #define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
186 1.1 jruoho #define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
187 1.2 jruoho #define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((const UINT8 *)(const void *)(s))[0];\
188 1.2 jruoho (( UINT8 *)(void *)(d))[1] = ((const UINT8 *)(const void *)(s))[1];\
189 1.2 jruoho (( UINT8 *)(void *)(d))[2] = ((const UINT8 *)(const void *)(s))[2];\
190 1.2 jruoho (( UINT8 *)(void *)(d))[3] = ((const UINT8 *)(const void *)(s))[3];\
191 1.2 jruoho (( UINT8 *)(void *)(d))[4] = ((const UINT8 *)(const void *)(s))[4];\
192 1.2 jruoho (( UINT8 *)(void *)(d))[5] = ((const UINT8 *)(const void *)(s))[5];\
193 1.2 jruoho (( UINT8 *)(void *)(d))[6] = ((const UINT8 *)(const void *)(s))[6];\
194 1.2 jruoho (( UINT8 *)(void *)(d))[7] = ((const UINT8 *)(const void *)(s))[7];}
195 1.1 jruoho #endif
196 1.1 jruoho #endif
197 1.1 jruoho
198 1.1 jruoho
199 1.1 jruoho /*
200 1.1 jruoho * Fast power-of-two math macros for non-optimized compilers
201 1.1 jruoho */
202 1.1 jruoho #define _ACPI_DIV(value, PowerOf2) ((UINT32) ((value) >> (PowerOf2)))
203 1.1 jruoho #define _ACPI_MUL(value, PowerOf2) ((UINT32) ((value) << (PowerOf2)))
204 1.1 jruoho #define _ACPI_MOD(value, Divisor) ((UINT32) ((value) & ((Divisor) -1)))
205 1.1 jruoho
206 1.1 jruoho #define ACPI_DIV_2(a) _ACPI_DIV(a, 1)
207 1.1 jruoho #define ACPI_MUL_2(a) _ACPI_MUL(a, 1)
208 1.1 jruoho #define ACPI_MOD_2(a) _ACPI_MOD(a, 2)
209 1.1 jruoho
210 1.1 jruoho #define ACPI_DIV_4(a) _ACPI_DIV(a, 2)
211 1.1 jruoho #define ACPI_MUL_4(a) _ACPI_MUL(a, 2)
212 1.1 jruoho #define ACPI_MOD_4(a) _ACPI_MOD(a, 4)
213 1.1 jruoho
214 1.1 jruoho #define ACPI_DIV_8(a) _ACPI_DIV(a, 3)
215 1.1 jruoho #define ACPI_MUL_8(a) _ACPI_MUL(a, 3)
216 1.1 jruoho #define ACPI_MOD_8(a) _ACPI_MOD(a, 8)
217 1.1 jruoho
218 1.1 jruoho #define ACPI_DIV_16(a) _ACPI_DIV(a, 4)
219 1.1 jruoho #define ACPI_MUL_16(a) _ACPI_MUL(a, 4)
220 1.1 jruoho #define ACPI_MOD_16(a) _ACPI_MOD(a, 16)
221 1.1 jruoho
222 1.1 jruoho #define ACPI_DIV_32(a) _ACPI_DIV(a, 5)
223 1.1 jruoho #define ACPI_MUL_32(a) _ACPI_MUL(a, 5)
224 1.1 jruoho #define ACPI_MOD_32(a) _ACPI_MOD(a, 32)
225 1.1 jruoho
226 1.7 christos /* Test for ASCII character */
227 1.7 christos
228 1.7 christos #define ACPI_IS_ASCII(c) ((c) < 0x80)
229 1.7 christos
230 1.7 christos /* Signed integers */
231 1.7 christos
232 1.7 christos #define ACPI_SIGN_POSITIVE 0
233 1.7 christos #define ACPI_SIGN_NEGATIVE 1
234 1.7 christos
235 1.7 christos
236 1.1 jruoho /*
237 1.1 jruoho * Rounding macros (Power of two boundaries only)
238 1.1 jruoho */
239 1.1 jruoho #define ACPI_ROUND_DOWN(value, boundary) (((ACPI_SIZE)(value)) & \
240 1.1 jruoho (~(((ACPI_SIZE) boundary)-1)))
241 1.1 jruoho
242 1.1 jruoho #define ACPI_ROUND_UP(value, boundary) ((((ACPI_SIZE)(value)) + \
243 1.1 jruoho (((ACPI_SIZE) boundary)-1)) & \
244 1.1 jruoho (~(((ACPI_SIZE) boundary)-1)))
245 1.1 jruoho
246 1.1 jruoho /* Note: sizeof(ACPI_SIZE) evaluates to either 4 or 8 (32- vs 64-bit mode) */
247 1.1 jruoho
248 1.1 jruoho #define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4)
249 1.1 jruoho #define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a, 8)
250 1.1 jruoho #define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a, sizeof(ACPI_SIZE))
251 1.1 jruoho
252 1.1 jruoho #define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4)
253 1.1 jruoho #define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8)
254 1.1 jruoho #define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(ACPI_SIZE))
255 1.1 jruoho
256 1.1 jruoho #define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7)
257 1.1 jruoho #define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a))
258 1.1 jruoho
259 1.1 jruoho #define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
260 1.1 jruoho
261 1.1 jruoho /* Generic (non-power-of-two) rounding */
262 1.1 jruoho
263 1.1 jruoho #define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary))
264 1.1 jruoho
265 1.1 jruoho #define ACPI_IS_MISALIGNED(value) (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1))
266 1.1 jruoho
267 1.9 christos /* Generic (power-of-two) rounding */
268 1.9 christos
269 1.9 christos #define ACPI_IS_POWER_OF_TWO(a) (((a) & ((a) - 1)) == 0)
270 1.9 christos
271 1.1 jruoho /*
272 1.1 jruoho * Bitmask creation
273 1.1 jruoho * Bit positions start at zero.
274 1.1 jruoho * MASK_BITS_ABOVE creates a mask starting AT the position and above
275 1.1 jruoho * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
276 1.9 christos * MASK_BITS_ABOVE/BELOW accpets a bit offset to create a mask
277 1.9 christos * MASK_BITS_ABOVE/BELOW_32/64 accpets a bit width to create a mask
278 1.9 christos * Note: The ACPI_INTEGER_BIT_SIZE check is used to bypass compiler
279 1.9 christos * differences with the shift operator
280 1.1 jruoho */
281 1.1 jruoho #define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((UINT32) (position))))
282 1.1 jruoho #define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((UINT32) (position)))
283 1.9 christos #define ACPI_MASK_BITS_ABOVE_32(width) ((UINT32) ACPI_MASK_BITS_ABOVE(width))
284 1.9 christos #define ACPI_MASK_BITS_BELOW_32(width) ((UINT32) ACPI_MASK_BITS_BELOW(width))
285 1.9 christos #define ACPI_MASK_BITS_ABOVE_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \
286 1.9 christos ACPI_UINT64_MAX : \
287 1.9 christos ACPI_MASK_BITS_ABOVE(width))
288 1.9 christos #define ACPI_MASK_BITS_BELOW_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \
289 1.9 christos (UINT64) 0 : \
290 1.9 christos ACPI_MASK_BITS_BELOW(width))
291 1.1 jruoho
292 1.1 jruoho /* Bitfields within ACPI registers */
293 1.1 jruoho
294 1.4 christos #define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask) \
295 1.4 christos ((Val << Pos) & Mask)
296 1.1 jruoho
297 1.4 christos #define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val) \
298 1.4 christos Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)
299 1.4 christos
300 1.4 christos #define ACPI_INSERT_BITS(Target, Mask, Source) \
301 1.4 christos Target = ((Target & (~(Mask))) | (Source & Mask))
302 1.4 christos
303 1.4 christos /* Generic bitfield macros and masks */
304 1.4 christos
305 1.4 christos #define ACPI_GET_BITS(SourcePtr, Position, Mask) \
306 1.9 christos ((*(SourcePtr) >> (Position)) & (Mask))
307 1.4 christos
308 1.4 christos #define ACPI_SET_BITS(TargetPtr, Position, Mask, Value) \
309 1.9 christos (*(TargetPtr) |= (((Value) & (Mask)) << (Position)))
310 1.4 christos
311 1.4 christos #define ACPI_1BIT_MASK 0x00000001
312 1.4 christos #define ACPI_2BIT_MASK 0x00000003
313 1.4 christos #define ACPI_3BIT_MASK 0x00000007
314 1.4 christos #define ACPI_4BIT_MASK 0x0000000F
315 1.4 christos #define ACPI_5BIT_MASK 0x0000001F
316 1.4 christos #define ACPI_6BIT_MASK 0x0000003F
317 1.4 christos #define ACPI_7BIT_MASK 0x0000007F
318 1.4 christos #define ACPI_8BIT_MASK 0x000000FF
319 1.4 christos #define ACPI_16BIT_MASK 0x0000FFFF
320 1.4 christos #define ACPI_24BIT_MASK 0x00FFFFFF
321 1.4 christos
322 1.4 christos /* Macros to extract flag bits from position zero */
323 1.4 christos
324 1.4 christos #define ACPI_GET_1BIT_FLAG(Value) ((Value) & ACPI_1BIT_MASK)
325 1.4 christos #define ACPI_GET_2BIT_FLAG(Value) ((Value) & ACPI_2BIT_MASK)
326 1.4 christos #define ACPI_GET_3BIT_FLAG(Value) ((Value) & ACPI_3BIT_MASK)
327 1.4 christos #define ACPI_GET_4BIT_FLAG(Value) ((Value) & ACPI_4BIT_MASK)
328 1.4 christos
329 1.4 christos /* Macros to extract flag bits from position one and above */
330 1.4 christos
331 1.4 christos #define ACPI_EXTRACT_1BIT_FLAG(Field, Position) (ACPI_GET_1BIT_FLAG ((Field) >> Position))
332 1.4 christos #define ACPI_EXTRACT_2BIT_FLAG(Field, Position) (ACPI_GET_2BIT_FLAG ((Field) >> Position))
333 1.4 christos #define ACPI_EXTRACT_3BIT_FLAG(Field, Position) (ACPI_GET_3BIT_FLAG ((Field) >> Position))
334 1.4 christos #define ACPI_EXTRACT_4BIT_FLAG(Field, Position) (ACPI_GET_4BIT_FLAG ((Field) >> Position))
335 1.4 christos
336 1.4 christos /* ACPI Pathname helpers */
337 1.4 christos
338 1.4 christos #define ACPI_IS_ROOT_PREFIX(c) ((c) == (UINT8) 0x5C) /* Backslash */
339 1.4 christos #define ACPI_IS_PARENT_PREFIX(c) ((c) == (UINT8) 0x5E) /* Carat */
340 1.4 christos #define ACPI_IS_PATH_SEPARATOR(c) ((c) == (UINT8) 0x2E) /* Period (dot) */
341 1.1 jruoho
342 1.1 jruoho /*
343 1.4 christos * An object of type ACPI_NAMESPACE_NODE can appear in some contexts
344 1.4 christos * where a pointer to an object of type ACPI_OPERAND_OBJECT can also
345 1.1 jruoho * appear. This macro is used to distinguish them.
346 1.1 jruoho *
347 1.4 christos * The "DescriptorType" field is the second field in both structures.
348 1.1 jruoho */
349 1.4 christos #define ACPI_GET_DESCRIPTOR_PTR(d) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer)
350 1.4 christos #define ACPI_SET_DESCRIPTOR_PTR(d, p) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer = (p))
351 1.1 jruoho #define ACPI_GET_DESCRIPTOR_TYPE(d) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType)
352 1.4 christos #define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType = (t))
353 1.1 jruoho
354 1.1 jruoho /*
355 1.1 jruoho * Macros for the master AML opcode table
356 1.1 jruoho */
357 1.1 jruoho #if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
358 1.1 jruoho #define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
359 1.1 jruoho {Name, (UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
360 1.1 jruoho #else
361 1.1 jruoho #define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
362 1.1 jruoho {(UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
363 1.1 jruoho #endif
364 1.1 jruoho
365 1.1 jruoho #define ARG_TYPE_WIDTH 5
366 1.1 jruoho #define ARG_1(x) ((UINT32)(x))
367 1.1 jruoho #define ARG_2(x) ((UINT32)(x) << (1 * ARG_TYPE_WIDTH))
368 1.1 jruoho #define ARG_3(x) ((UINT32)(x) << (2 * ARG_TYPE_WIDTH))
369 1.1 jruoho #define ARG_4(x) ((UINT32)(x) << (3 * ARG_TYPE_WIDTH))
370 1.1 jruoho #define ARG_5(x) ((UINT32)(x) << (4 * ARG_TYPE_WIDTH))
371 1.1 jruoho #define ARG_6(x) ((UINT32)(x) << (5 * ARG_TYPE_WIDTH))
372 1.1 jruoho
373 1.1 jruoho #define ARGI_LIST1(a) (ARG_1(a))
374 1.1 jruoho #define ARGI_LIST2(a, b) (ARG_1(b)|ARG_2(a))
375 1.1 jruoho #define ARGI_LIST3(a, b, c) (ARG_1(c)|ARG_2(b)|ARG_3(a))
376 1.1 jruoho #define ARGI_LIST4(a, b, c, d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
377 1.1 jruoho #define ARGI_LIST5(a, b, c, d, e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
378 1.1 jruoho #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))
379 1.1 jruoho
380 1.1 jruoho #define ARGP_LIST1(a) (ARG_1(a))
381 1.1 jruoho #define ARGP_LIST2(a, b) (ARG_1(a)|ARG_2(b))
382 1.1 jruoho #define ARGP_LIST3(a, b, c) (ARG_1(a)|ARG_2(b)|ARG_3(c))
383 1.1 jruoho #define ARGP_LIST4(a, b, c, d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
384 1.1 jruoho #define ARGP_LIST5(a, b, c, d, e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
385 1.1 jruoho #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))
386 1.1 jruoho
387 1.1 jruoho #define GET_CURRENT_ARG_TYPE(List) (List & ((UINT32) 0x1F))
388 1.1 jruoho #define INCREMENT_ARG_LIST(List) (List >>= ((UINT32) ARG_TYPE_WIDTH))
389 1.1 jruoho
390 1.1 jruoho /*
391 1.1 jruoho * Ascii error messages can be configured out
392 1.1 jruoho */
393 1.1 jruoho #ifndef ACPI_NO_ERROR_MESSAGES
394 1.1 jruoho /*
395 1.1 jruoho * Error reporting. Callers module and line number are inserted by AE_INFO,
396 1.1 jruoho * the plist contains a set of parens to allow variable-length lists.
397 1.1 jruoho * These macros are used for both the debug and non-debug versions of the code.
398 1.1 jruoho */
399 1.4 christos #define ACPI_ERROR_NAMESPACE(s, e) AcpiUtNamespaceError (AE_INFO, s, e);
400 1.4 christos #define ACPI_ERROR_METHOD(s, n, p, e) AcpiUtMethodError (AE_INFO, s, n, p, e);
401 1.4 christos #define ACPI_WARN_PREDEFINED(plist) AcpiUtPredefinedWarning plist
402 1.4 christos #define ACPI_INFO_PREDEFINED(plist) AcpiUtPredefinedInfo plist
403 1.4 christos #define ACPI_BIOS_ERROR_PREDEFINED(plist) AcpiUtPredefinedBiosError plist
404 1.1 jruoho
405 1.1 jruoho #else
406 1.1 jruoho
407 1.1 jruoho /* No error messages */
408 1.1 jruoho
409 1.1 jruoho #define ACPI_ERROR_NAMESPACE(s, e)
410 1.1 jruoho #define ACPI_ERROR_METHOD(s, n, p, e)
411 1.1 jruoho #define ACPI_WARN_PREDEFINED(plist)
412 1.1 jruoho #define ACPI_INFO_PREDEFINED(plist)
413 1.4 christos #define ACPI_BIOS_ERROR_PREDEFINED(plist)
414 1.1 jruoho
415 1.1 jruoho #endif /* ACPI_NO_ERROR_MESSAGES */
416 1.1 jruoho
417 1.4 christos #if (!ACPI_REDUCED_HARDWARE)
418 1.4 christos #define ACPI_HW_OPTIONAL_FUNCTION(addr) addr
419 1.1 jruoho #else
420 1.4 christos #define ACPI_HW_OPTIONAL_FUNCTION(addr) NULL
421 1.1 jruoho #endif
422 1.1 jruoho
423 1.1 jruoho
424 1.1 jruoho /*
425 1.1 jruoho * Macros used for ACPICA utilities only
426 1.1 jruoho */
427 1.1 jruoho
428 1.1 jruoho /* Generate a UUID */
429 1.1 jruoho
430 1.1 jruoho #define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
431 1.1 jruoho (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
432 1.1 jruoho (b) & 0xFF, ((b) >> 8) & 0xFF, \
433 1.1 jruoho (c) & 0xFF, ((c) >> 8) & 0xFF, \
434 1.1 jruoho (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
435 1.1 jruoho
436 1.1 jruoho #define ACPI_IS_OCTAL_DIGIT(d) (((char)(d) >= '0') && ((char)(d) <= '7'))
437 1.1 jruoho
438 1.1 jruoho
439 1.1 jruoho #endif /* ACMACROS_H */
440