1/****************************************************************************** 2 * 3 * Name: acmacros.h - C macros for the entire subsystem. 4 * 5 *****************************************************************************/ 6 7/****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2017, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152#ifndef __ACMACROS_H__ 153#define __ACMACROS_H__ 154 155 156/* 157 * Extract data using a pointer. Any more than a byte and we 158 * get into potential alignment issues -- see the STORE macros below. 159 * Use with care. 160 */ 161#define ACPI_CAST8(ptr) ACPI_CAST_PTR (UINT8, (ptr)) 162#define ACPI_CAST16(ptr) ACPI_CAST_PTR (UINT16, (ptr)) 163#define ACPI_CAST32(ptr) ACPI_CAST_PTR (UINT32, (ptr)) 164#define ACPI_CAST64(ptr) ACPI_CAST_PTR (UINT64, (ptr)) 165#define ACPI_GET8(ptr) (*ACPI_CAST8 (ptr)) 166#define ACPI_GET16(ptr) (*ACPI_CAST16 (ptr)) 167#define ACPI_GET32(ptr) (*ACPI_CAST32 (ptr)) 168#define ACPI_GET64(ptr) (*ACPI_CAST64 (ptr)) 169#define ACPI_SET8(ptr, val) (*ACPI_CAST8 (ptr) = (UINT8) (val)) 170#define ACPI_SET16(ptr, val) (*ACPI_CAST16 (ptr) = (UINT16) (val)) 171#define ACPI_SET32(ptr, val) (*ACPI_CAST32 (ptr) = (UINT32) (val)) 172#define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (UINT64) (val)) 173 174/* 175 * printf() format helper. This macro is a workaround for the difficulties 176 * with emitting 64-bit integers and 64-bit pointers with the same code 177 * for both 32-bit and 64-bit hosts. 178 */ 179#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i) 180 181 182/* 183 * Macros for moving data around to/from buffers that are possibly unaligned. 184 * If the hardware supports the transfer of unaligned data, just do the store. 185 * Otherwise, we have to move one byte at a time. 186 */ 187#ifdef ACPI_BIG_ENDIAN 188/* 189 * Macros for big-endian machines 190 */ 191 192/* These macros reverse the bytes during the move, converting little-endian to big endian */ 193 194 /* Big Endian <== Little Endian */ 195 /* Hi...Lo Lo...Hi */ 196/* 16-bit source, 16/32/64 destination */ 197 198#define ACPI_MOVE_16_TO_16(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[1];\ 199 (( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[0];} 200 201#define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d))=0;\ 202 ((UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\ 203 ((UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];} 204 205#define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\ 206 ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\ 207 ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];} 208 209/* 32-bit source, 16/32/64 destination */ 210 211#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ 212 213#define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[3];\ 214 (( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[2];\ 215 (( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\ 216 (( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];} 217 218#define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d))=0;\ 219 ((UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\ 220 ((UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\ 221 ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\ 222 ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];} 223 224/* 64-bit source, 16/32/64 destination */ 225 226#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ 227 228#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */ 229 230#define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[7];\ 231 (( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[6];\ 232 (( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[5];\ 233 (( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[4];\ 234 (( UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\ 235 (( UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\ 236 (( UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\ 237 (( UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];} 238#else 239/* 240 * Macros for little-endian machines 241 */ 242 243#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED 244 245/* The hardware supports unaligned transfers, just do the little-endian move */ 246 247/* 16-bit source, 16/32/64 destination */ 248 249#define ACPI_MOVE_16_TO_16(d, s) *(UINT16 *)(void *)(d) = *(UINT16 *)(void *)(s) 250#define ACPI_MOVE_16_TO_32(d, s) *(UINT32 *)(void *)(d) = *(UINT16 *)(void *)(s) 251#define ACPI_MOVE_16_TO_64(d, s) *(UINT64 *)(void *)(d) = *(UINT16 *)(void *)(s) 252 253/* 32-bit source, 16/32/64 destination */ 254 255#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ 256#define ACPI_MOVE_32_TO_32(d, s) *(UINT32 *)(void *)(d) = *(UINT32 *)(void *)(s) 257#define ACPI_MOVE_32_TO_64(d, s) *(UINT64 *)(void *)(d) = *(UINT32 *)(void *)(s) 258 259/* 64-bit source, 16/32/64 destination */ 260 261#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ 262#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */ 263#define ACPI_MOVE_64_TO_64(d, s) *(UINT64 *)(void *)(d) = *(UINT64 *)(void *)(s) 264 265#else 266/* 267 * The hardware does not support unaligned transfers. We must move the 268 * data one byte at a time. These macros work whether the source or 269 * the destination (or both) is/are unaligned. (Little-endian move) 270 */ 271 272/* 16-bit source, 16/32/64 destination */ 273 274#define ACPI_MOVE_16_TO_16(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\ 275 (( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];} 276 277#define ACPI_MOVE_16_TO_32(d, s) {(*(UINT32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);} 278#define ACPI_MOVE_16_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);} 279 280/* 32-bit source, 16/32/64 destination */ 281 282#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ 283 284#define ACPI_MOVE_32_TO_32(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\ 285 (( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\ 286 (( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\ 287 (( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];} 288 289#define ACPI_MOVE_32_TO_64(d, s) {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);} 290 291/* 64-bit source, 16/32/64 destination */ 292 293#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */ 294#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */ 295#define ACPI_MOVE_64_TO_64(d, s) {(( UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\ 296 (( UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\ 297 (( UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\ 298 (( UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];\ 299 (( UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[4];\ 300 (( UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[5];\ 301 (( UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[6];\ 302 (( UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[7];} 303#endif 304#endif 305 306 307/* 308 * Fast power-of-two math macros for non-optimized compilers 309 */ 310#define _ACPI_DIV(value, PowerOf2) ((UINT32) ((value) >> (PowerOf2))) 311#define _ACPI_MUL(value, PowerOf2) ((UINT32) ((value) << (PowerOf2))) 312#define _ACPI_MOD(value, Divisor) ((UINT32) ((value) & ((Divisor) -1))) 313 314#define ACPI_DIV_2(a) _ACPI_DIV(a, 1) 315#define ACPI_MUL_2(a) _ACPI_MUL(a, 1) 316#define ACPI_MOD_2(a) _ACPI_MOD(a, 2) 317 318#define ACPI_DIV_4(a) _ACPI_DIV(a, 2) 319#define ACPI_MUL_4(a) _ACPI_MUL(a, 2) 320#define ACPI_MOD_4(a) _ACPI_MOD(a, 4) 321 322#define ACPI_DIV_8(a) _ACPI_DIV(a, 3) 323#define ACPI_MUL_8(a) _ACPI_MUL(a, 3) 324#define ACPI_MOD_8(a) _ACPI_MOD(a, 8) 325 326#define ACPI_DIV_16(a) _ACPI_DIV(a, 4) 327#define ACPI_MUL_16(a) _ACPI_MUL(a, 4) 328#define ACPI_MOD_16(a) _ACPI_MOD(a, 16) 329 330#define ACPI_DIV_32(a) _ACPI_DIV(a, 5) 331#define ACPI_MUL_32(a) _ACPI_MUL(a, 5) 332#define ACPI_MOD_32(a) _ACPI_MOD(a, 32) 333 334/* Test for ASCII character */ 335 336#define ACPI_IS_ASCII(c) ((c) < 0x80) 337 338/* Signed integers */ 339 340#define ACPI_SIGN_POSITIVE 0 341#define ACPI_SIGN_NEGATIVE 1 342 343 344/* 345 * Rounding macros (Power of two boundaries only) 346 */ 347#define ACPI_ROUND_DOWN(value, boundary) (((ACPI_SIZE)(value)) & \ 348 (~(((ACPI_SIZE) boundary)-1))) 349 350#define ACPI_ROUND_UP(value, boundary) ((((ACPI_SIZE)(value)) + \ 351 (((ACPI_SIZE) boundary)-1)) & \ 352 (~(((ACPI_SIZE) boundary)-1))) 353 354/* Note: sizeof(ACPI_SIZE) evaluates to either 4 or 8 (32- vs 64-bit mode) */ 355 356#define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4) 357#define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a, 8) 358#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a, sizeof(ACPI_SIZE)) 359 360#define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4) 361#define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8) 362#define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(ACPI_SIZE)) 363 364#define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7) 365#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a)) 366 367#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10) 368 369/* Generic (non-power-of-two) rounding */ 370 371#define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary)) 372 373#define ACPI_IS_MISALIGNED(value) (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1)) 374 375/* Generic bit manipulation */ 376 377#ifndef ACPI_USE_NATIVE_BIT_FINDER 378 379#define __ACPI_FIND_LAST_BIT_2(a, r) ((((UINT8) (a)) & 0x02) ? (r)+1 : (r)) 380#define __ACPI_FIND_LAST_BIT_4(a, r) ((((UINT8) (a)) & 0x0C) ? \ 381 __ACPI_FIND_LAST_BIT_2 ((a)>>2, (r)+2) : \ 382 __ACPI_FIND_LAST_BIT_2 ((a), (r))) 383#define __ACPI_FIND_LAST_BIT_8(a, r) ((((UINT8) (a)) & 0xF0) ? \ 384 __ACPI_FIND_LAST_BIT_4 ((a)>>4, (r)+4) : \ 385 __ACPI_FIND_LAST_BIT_4 ((a), (r))) 386#define __ACPI_FIND_LAST_BIT_16(a, r) ((((UINT16) (a)) & 0xFF00) ? \ 387 __ACPI_FIND_LAST_BIT_8 ((a)>>8, (r)+8) : \ 388 __ACPI_FIND_LAST_BIT_8 ((a), (r))) 389#define __ACPI_FIND_LAST_BIT_32(a, r) ((((UINT32) (a)) & 0xFFFF0000) ? \ 390 __ACPI_FIND_LAST_BIT_16 ((a)>>16, (r)+16) : \ 391 __ACPI_FIND_LAST_BIT_16 ((a), (r))) 392#define __ACPI_FIND_LAST_BIT_64(a, r) ((((UINT64) (a)) & 0xFFFFFFFF00000000) ? \ 393 __ACPI_FIND_LAST_BIT_32 ((a)>>32, (r)+32) : \ 394 __ACPI_FIND_LAST_BIT_32 ((a), (r))) 395 396#define ACPI_FIND_LAST_BIT_8(a) ((a) ? __ACPI_FIND_LAST_BIT_8 (a, 1) : 0) 397#define ACPI_FIND_LAST_BIT_16(a) ((a) ? __ACPI_FIND_LAST_BIT_16 (a, 1) : 0) 398#define ACPI_FIND_LAST_BIT_32(a) ((a) ? __ACPI_FIND_LAST_BIT_32 (a, 1) : 0) 399#define ACPI_FIND_LAST_BIT_64(a) ((a) ? __ACPI_FIND_LAST_BIT_64 (a, 1) : 0) 400 401#define __ACPI_FIND_FIRST_BIT_2(a, r) ((((UINT8) (a)) & 0x01) ? (r) : (r)+1) 402#define __ACPI_FIND_FIRST_BIT_4(a, r) ((((UINT8) (a)) & 0x03) ? \ 403 __ACPI_FIND_FIRST_BIT_2 ((a), (r)) : \ 404 __ACPI_FIND_FIRST_BIT_2 ((a)>>2, (r)+2)) 405#define __ACPI_FIND_FIRST_BIT_8(a, r) ((((UINT8) (a)) & 0x0F) ? \ 406 __ACPI_FIND_FIRST_BIT_4 ((a), (r)) : \ 407 __ACPI_FIND_FIRST_BIT_4 ((a)>>4, (r)+4)) 408#define __ACPI_FIND_FIRST_BIT_16(a, r) ((((UINT16) (a)) & 0x00FF) ? \ 409 __ACPI_FIND_FIRST_BIT_8 ((a), (r)) : \ 410 __ACPI_FIND_FIRST_BIT_8 ((a)>>8, (r)+8)) 411#define __ACPI_FIND_FIRST_BIT_32(a, r) ((((UINT32) (a)) & 0x0000FFFF) ? \ 412 __ACPI_FIND_FIRST_BIT_16 ((a), (r)) : \ 413 __ACPI_FIND_FIRST_BIT_16 ((a)>>16, (r)+16)) 414#define __ACPI_FIND_FIRST_BIT_64(a, r) ((((UINT64) (a)) & 0x00000000FFFFFFFF) ? \ 415 __ACPI_FIND_FIRST_BIT_32 ((a), (r)) : \ 416 __ACPI_FIND_FIRST_BIT_32 ((a)>>32, (r)+32)) 417 418#define ACPI_FIND_FIRST_BIT_8(a) ((a) ? __ACPI_FIND_FIRST_BIT_8 (a, 1) : 0) 419#define ACPI_FIND_FIRST_BIT_16(a) ((a) ? __ACPI_FIND_FIRST_BIT_16 (a, 1) : 0) 420#define ACPI_FIND_FIRST_BIT_32(a) ((a) ? __ACPI_FIND_FIRST_BIT_32 (a, 1) : 0) 421#define ACPI_FIND_FIRST_BIT_64(a) ((a) ? __ACPI_FIND_FIRST_BIT_64 (a, 1) : 0) 422 423#endif /* ACPI_USE_NATIVE_BIT_FINDER */ 424 425/* Generic (power-of-two) rounding */ 426 427#define ACPI_ROUND_UP_POWER_OF_TWO_8(a) ((UINT8) \ 428 (((UINT16) 1) << ACPI_FIND_LAST_BIT_8 ((a) - 1))) 429#define ACPI_ROUND_DOWN_POWER_OF_TWO_8(a) ((UINT8) \ 430 (((UINT16) 1) << (ACPI_FIND_LAST_BIT_8 ((a)) - 1))) 431#define ACPI_ROUND_UP_POWER_OF_TWO_16(a) ((UINT16) \ 432 (((UINT32) 1) << ACPI_FIND_LAST_BIT_16 ((a) - 1))) 433#define ACPI_ROUND_DOWN_POWER_OF_TWO_16(a) ((UINT16) \ 434 (((UINT32) 1) << (ACPI_FIND_LAST_BIT_16 ((a)) - 1))) 435#define ACPI_ROUND_UP_POWER_OF_TWO_32(a) ((UINT32) \ 436 (((UINT64) 1) << ACPI_FIND_LAST_BIT_32 ((a) - 1))) 437#define ACPI_ROUND_DOWN_POWER_OF_TWO_32(a) ((UINT32) \ 438 (((UINT64) 1) << (ACPI_FIND_LAST_BIT_32 ((a)) - 1))) 439#define ACPI_IS_ALIGNED(a, s) (((a) & ((s) - 1)) == 0) 440#define ACPI_IS_POWER_OF_TWO(a) ACPI_IS_ALIGNED(a, a) 441 442/* 443 * Bitmask creation 444 * Bit positions start at zero. 445 * MASK_BITS_ABOVE creates a mask starting AT the position and above 446 * MASK_BITS_BELOW creates a mask starting one bit BELOW the position 447 * MASK_BITS_ABOVE/BELOW accepts a bit offset to create a mask 448 * MASK_BITS_ABOVE/BELOW_32/64 accepts a bit width to create a mask 449 * Note: The ACPI_INTEGER_BIT_SIZE check is used to bypass compiler 450 * differences with the shift operator 451 */ 452#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((UINT32) (position)))) 453#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((UINT32) (position))) 454#define ACPI_MASK_BITS_ABOVE_32(width) ((UINT32) ACPI_MASK_BITS_ABOVE(width)) 455#define ACPI_MASK_BITS_BELOW_32(width) ((UINT32) ACPI_MASK_BITS_BELOW(width)) 456#define ACPI_MASK_BITS_ABOVE_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \ 457 ACPI_UINT64_MAX : \ 458 ACPI_MASK_BITS_ABOVE(width)) 459#define ACPI_MASK_BITS_BELOW_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \ 460 (UINT64) 0 : \ 461 ACPI_MASK_BITS_BELOW(width)) 462 463/* Bitfields within ACPI registers */ 464 465#define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask) \ 466 ((Val << Pos) & Mask) 467 468#define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val) \ 469 Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask) 470 471#define ACPI_INSERT_BITS(Target, Mask, Source) \ 472 Target = ((Target & (~(Mask))) | (Source & Mask)) 473 474/* Generic bitfield macros and masks */ 475 476#define ACPI_GET_BITS(SourcePtr, Position, Mask) \ 477 ((*(SourcePtr) >> (Position)) & (Mask)) 478 479#define ACPI_SET_BITS(TargetPtr, Position, Mask, Value) \ 480 (*(TargetPtr) |= (((Value) & (Mask)) << (Position))) 481 482#define ACPI_1BIT_MASK 0x00000001 483#define ACPI_2BIT_MASK 0x00000003 484#define ACPI_3BIT_MASK 0x00000007 485#define ACPI_4BIT_MASK 0x0000000F 486#define ACPI_5BIT_MASK 0x0000001F 487#define ACPI_6BIT_MASK 0x0000003F 488#define ACPI_7BIT_MASK 0x0000007F 489#define ACPI_8BIT_MASK 0x000000FF 490#define ACPI_16BIT_MASK 0x0000FFFF 491#define ACPI_24BIT_MASK 0x00FFFFFF 492 493/* Macros to extract flag bits from position zero */ 494 495#define ACPI_GET_1BIT_FLAG(Value) ((Value) & ACPI_1BIT_MASK) 496#define ACPI_GET_2BIT_FLAG(Value) ((Value) & ACPI_2BIT_MASK) 497#define ACPI_GET_3BIT_FLAG(Value) ((Value) & ACPI_3BIT_MASK) 498#define ACPI_GET_4BIT_FLAG(Value) ((Value) & ACPI_4BIT_MASK) 499 500/* Macros to extract flag bits from position one and above */ 501 502#define ACPI_EXTRACT_1BIT_FLAG(Field, Position) (ACPI_GET_1BIT_FLAG ((Field) >> Position)) 503#define ACPI_EXTRACT_2BIT_FLAG(Field, Position) (ACPI_GET_2BIT_FLAG ((Field) >> Position)) 504#define ACPI_EXTRACT_3BIT_FLAG(Field, Position) (ACPI_GET_3BIT_FLAG ((Field) >> Position)) 505#define ACPI_EXTRACT_4BIT_FLAG(Field, Position) (ACPI_GET_4BIT_FLAG ((Field) >> Position)) 506 507/* ACPI Pathname helpers */ 508 509#define ACPI_IS_ROOT_PREFIX(c) ((c) == (UINT8) 0x5C) /* Backslash */ 510#define ACPI_IS_PARENT_PREFIX(c) ((c) == (UINT8) 0x5E) /* Carat */ 511#define ACPI_IS_PATH_SEPARATOR(c) ((c) == (UINT8) 0x2E) /* Period (dot) */ 512 513/* 514 * An object of type ACPI_NAMESPACE_NODE can appear in some contexts 515 * where a pointer to an object of type ACPI_OPERAND_OBJECT can also 516 * appear. This macro is used to distinguish them. 517 * 518 * The "DescriptorType" field is the second field in both structures. 519 */ 520#define ACPI_GET_DESCRIPTOR_PTR(d) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer) 521#define ACPI_SET_DESCRIPTOR_PTR(d, p) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.CommonPointer = (p)) 522#define ACPI_GET_DESCRIPTOR_TYPE(d) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType) 523#define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType = (t)) 524 525/* 526 * Macros for the master AML opcode table 527 */ 528#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT) 529#define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \ 530 {Name, (UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type} 531#else 532#define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \ 533 {(UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type} 534#endif 535 536#define ARG_TYPE_WIDTH 5 537#define ARG_1(x) ((UINT32)(x)) 538#define ARG_2(x) ((UINT32)(x) << (1 * ARG_TYPE_WIDTH)) 539#define ARG_3(x) ((UINT32)(x) << (2 * ARG_TYPE_WIDTH)) 540#define ARG_4(x) ((UINT32)(x) << (3 * ARG_TYPE_WIDTH)) 541#define ARG_5(x) ((UINT32)(x) << (4 * ARG_TYPE_WIDTH)) 542#define ARG_6(x) ((UINT32)(x) << (5 * ARG_TYPE_WIDTH)) 543 544#define ARGI_LIST1(a) (ARG_1(a)) 545#define ARGI_LIST2(a, b) (ARG_1(b)|ARG_2(a)) 546#define ARGI_LIST3(a, b, c) (ARG_1(c)|ARG_2(b)|ARG_3(a)) 547#define ARGI_LIST4(a, b, c, d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a)) 548#define ARGI_LIST5(a, b, c, d, e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a)) 549#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)) 550 551#define ARGP_LIST1(a) (ARG_1(a)) 552#define ARGP_LIST2(a, b) (ARG_1(a)|ARG_2(b)) 553#define ARGP_LIST3(a, b, c) (ARG_1(a)|ARG_2(b)|ARG_3(c)) 554#define ARGP_LIST4(a, b, c, d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)) 555#define ARGP_LIST5(a, b, c, d, e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)) 556#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)) 557 558#define GET_CURRENT_ARG_TYPE(List) (List & ((UINT32) 0x1F)) 559#define INCREMENT_ARG_LIST(List) (List >>= ((UINT32) ARG_TYPE_WIDTH)) 560 561/* 562 * Ascii error messages can be configured out 563 */ 564#ifndef ACPI_NO_ERROR_MESSAGES 565/* 566 * Error reporting. The callers module and line number are inserted by AE_INFO, 567 * the plist contains a set of parens to allow variable-length lists. 568 * These macros are used for both the debug and non-debug versions of the code. 569 */ 570#define ACPI_ERROR_NAMESPACE(s, p, e) AcpiUtPrefixedNamespaceError (AE_INFO, s, p, e); 571#define ACPI_ERROR_METHOD(s, n, p, e) AcpiUtMethodError (AE_INFO, s, n, p, e); 572#define ACPI_WARN_PREDEFINED(plist) AcpiUtPredefinedWarning plist 573#define ACPI_INFO_PREDEFINED(plist) AcpiUtPredefinedInfo plist 574#define ACPI_BIOS_ERROR_PREDEFINED(plist) AcpiUtPredefinedBiosError plist 575 576#else 577 578/* No error messages */ 579 580#define ACPI_ERROR_NAMESPACE(s, e) 581#define ACPI_ERROR_METHOD(s, n, p, e) 582#define ACPI_WARN_PREDEFINED(plist) 583#define ACPI_INFO_PREDEFINED(plist) 584#define ACPI_BIOS_ERROR_PREDEFINED(plist) 585 586#endif /* ACPI_NO_ERROR_MESSAGES */ 587 588#if (!ACPI_REDUCED_HARDWARE) 589#define ACPI_HW_OPTIONAL_FUNCTION(addr) addr 590#else 591#define ACPI_HW_OPTIONAL_FUNCTION(addr) NULL 592#endif 593 594 595/* 596 * Macros used for ACPICA utilities only 597 */ 598 599/* Generate a UUID */ 600 601#define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ 602 (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \ 603 (b) & 0xFF, ((b) >> 8) & 0xFF, \ 604 (c) & 0xFF, ((c) >> 8) & 0xFF, \ 605 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) 606 607#define ACPI_IS_OCTAL_DIGIT(d) (((char)(d) >= '0') && ((char)(d) <= '7')) 608 609 610/* 611 * Macors used for the ASL-/ASL+ converter utility 612 */ 613#ifdef ACPI_ASL_COMPILER 614 615#define ASL_CV_LABEL_FILENODE(a) CvLabelFileNode(a); 616#define ASL_CV_CAPTURE_COMMENTS_ONLY(a) CvCaptureCommentsOnly (a); 617#define ASL_CV_CAPTURE_COMMENTS(a) CvCaptureComments (a); 618#define ASL_CV_TRANSFER_COMMENTS(a) CvTransferComments (a); 619#define ASL_CV_CLOSE_PAREN(a,b) CvCloseParenWriteComment(a,b); 620#define ASL_CV_CLOSE_BRACE(a,b) CvCloseBraceWriteComment(a,b); 621#define ASL_CV_SWITCH_FILES(a,b) CvSwitchFiles(a,b); 622#define ASL_CV_CLEAR_OP_COMMENTS(a) CvClearOpComments(a); 623#define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d) CvPrintOneCommentType (a,b,c,d); 624#define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b) CvPrintOneCommentList (a,b); 625#define ASL_CV_FILE_HAS_SWITCHED(a) CvFileHasSwitched(a) 626#define ASL_CV_INIT_FILETREE(a,b,c) CvInitFileTree(a,b,c); 627 628#else 629 630#define ASL_CV_LABEL_FILENODE(a) 631#define ASL_CV_CAPTURE_COMMENTS_ONLY(a) 632#define ASL_CV_CAPTURE_COMMENTS(a) 633#define ASL_CV_TRANSFER_COMMENTS(a) 634#define ASL_CV_CLOSE_PAREN(a,b) AcpiOsPrintf (")"); 635#define ASL_CV_CLOSE_BRACE(a,b) AcpiOsPrintf ("}"); 636#define ASL_CV_SWITCH_FILES(a,b) 637#define ASL_CV_CLEAR_OP_COMMENTS(a) 638#define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d) 639#define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b) 640#define ASL_CV_FILE_HAS_SWITCHED(a) 0 641#define ASL_CV_INIT_FILETREE(a,b,c) 642 643#endif 644 645#endif /* ACMACROS_H */ 646