1 /****************************************************************************** 2 * 3 * Name: acwin.h - OS specific defines, etc. 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2018, 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 __ACWIN_H__ 45 #define __ACWIN_H__ 46 47 #define ACPI_USE_STANDARD_HEADERS 48 #define ACPI_USE_SYSTEM_CLIBRARY 49 50 #define ACPI_MACHINE_WIDTH 32 51 #define ACPI_USE_NATIVE_DIVIDE 52 #define ACPI_USE_NATIVE_MATH64 53 54 #ifdef ACPI_DEFINE_ALTERNATE_TYPES 55 /* 56 * Types used only in (Linux) translated source, defined here to enable 57 * cross-platform compilation (i.e., generate the Linux code on Windows, 58 * for test purposes only) 59 */ 60 typedef int s32; 61 typedef unsigned char u8; 62 typedef unsigned short u16; 63 typedef unsigned int u32; 64 typedef COMPILER_DEPENDENT_UINT64 u64; 65 #endif 66 67 /* 68 * Map low I/O functions for MS. This allows us to disable MS language 69 * extensions for maximum portability. 70 */ 71 #define open _open 72 #define read _read 73 #define write _write 74 #define close _close 75 #define stat _stat 76 #define fstat _fstat 77 #define mkdir _mkdir 78 #define snprintf _snprintf 79 #if _MSC_VER <= 1200 /* Versions below VC++ 6 */ 80 #define vsnprintf _vsnprintf 81 #endif 82 #define O_RDONLY _O_RDONLY 83 #define O_BINARY _O_BINARY 84 #define O_CREAT _O_CREAT 85 #define O_WRONLY _O_WRONLY 86 #define O_TRUNC _O_TRUNC 87 #define S_IREAD _S_IREAD 88 #define S_IWRITE _S_IWRITE 89 #define S_IFDIR _S_IFDIR 90 91 92 /* 93 * Handle platform- and compiler-specific assembly language differences. 94 * 95 * Notes: 96 * 1) Interrupt 3 is used to break into a debugger 97 * 2) Interrupts are turned off during ACPI register setup 98 */ 99 100 /*! [Begin] no source code translation */ 101 102 #ifdef ACPI_APPLICATION 103 #define ACPI_FLUSH_CPU_CACHE() 104 #else 105 #define ACPI_FLUSH_CPU_CACHE() __asm {WBINVD} 106 #endif 107 108 #ifdef _DEBUG 109 #define ACPI_SIMPLE_RETURN_MACROS 110 #endif 111 112 /*! [End] no source code translation !*/ 113 114 /* 115 * Global Lock acquire/release code 116 * 117 * Note: Handles case where the FACS pointer is null 118 */ 119 #define ACPI_ACQUIRE_GLOBAL_LOCK(FacsPtr, Acq) __asm \ 120 { \ 121 __asm mov eax, 0xFF \ 122 __asm mov ecx, FacsPtr \ 123 __asm or ecx, ecx \ 124 __asm jz exit_acq \ 125 __asm lea ecx, [ecx].GlobalLock \ 126 \ 127 __asm acq10: \ 128 __asm mov eax, [ecx] \ 129 __asm mov edx, eax \ 130 __asm and edx, 0xFFFFFFFE \ 131 __asm bts edx, 1 \ 132 __asm adc edx, 0 \ 133 __asm lock cmpxchg dword ptr [ecx], edx \ 134 __asm jnz acq10 \ 135 \ 136 __asm cmp dl, 3 \ 137 __asm sbb eax, eax \ 138 \ 139 __asm exit_acq: \ 140 __asm mov Acq, al \ 141 } 142 143 #define ACPI_RELEASE_GLOBAL_LOCK(FacsPtr, Pnd) __asm \ 144 { \ 145 __asm xor eax, eax \ 146 __asm mov ecx, FacsPtr \ 147 __asm or ecx, ecx \ 148 __asm jz exit_rel \ 149 __asm lea ecx, [ecx].GlobalLock \ 150 \ 151 __asm Rel10: \ 152 __asm mov eax, [ecx] \ 153 __asm mov edx, eax \ 154 __asm and edx, 0xFFFFFFFC \ 155 __asm lock cmpxchg dword ptr [ecx], edx \ 156 __asm jnz Rel10 \ 157 \ 158 __asm cmp dl, 3 \ 159 __asm and eax, 1 \ 160 \ 161 __asm exit_rel: \ 162 __asm mov Pnd, al \ 163 } 164 165 #endif /* __ACWIN_H__ */ 166