1 /* 2 * Copright (C) 2014 - 2015 Linaro Ltd. 3 * Author: Ard Biesheuvel <ard.biesheuvel@linaro.org> 4 * Copright (C) 2017 Lemote Co. 5 * Author: Heiher <r@hev.cc> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice and this list of conditions, without modification. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * Alternatively, this software may be distributed under the terms of the 16 * GNU General Public License as published by the Free Software Foundation; 17 * either version 2 of the License, or (at your option) any later version. 18 */ 19 20 #if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L ) && !defined(__cplusplus) 21 22 // ANSI C 1999/2000 stdint.h integer width declarations 23 24 typedef unsigned long uint64_t; 25 typedef long int64_t; 26 typedef unsigned int uint32_t; 27 typedef int int32_t; 28 typedef unsigned short uint16_t; 29 typedef short int16_t; 30 typedef unsigned char uint8_t; 31 typedef signed char int8_t; // unqualified 'char' is unsigned on ARM 32 typedef uint64_t uintptr_t; 33 typedef int64_t intptr_t; 34 35 #else 36 #include <stdint.h> 37 #endif 38 39 // 40 // Basic EFI types of various widths 41 // 42 43 #ifndef __WCHAR_TYPE__ 44 # define __WCHAR_TYPE__ short 45 #endif 46 47 typedef uint64_t UINT64; 48 typedef int64_t INT64; 49 50 typedef uint32_t UINT32; 51 typedef int32_t INT32; 52 53 typedef uint16_t UINT16; 54 typedef int16_t INT16; 55 typedef uint8_t UINT8; 56 typedef int8_t INT8; 57 typedef __WCHAR_TYPE__ WCHAR; 58 59 #undef VOID 60 #define VOID void 61 62 typedef int64_t INTN; 63 typedef uint64_t UINTN; 64 65 #define EFIERR(a) (0x8000000000000000 | a) 66 #define EFI_ERROR_MASK 0x8000000000000000 67 #define EFIERR_OEM(a) (0xc000000000000000 | a) 68 69 #define BAD_POINTER 0xFBFBFBFBFBFBFBFB 70 #define MAX_ADDRESS 0xFFFFFFFFFFFFFFFF 71 72 #define BREAKPOINT() while (TRUE); // Make it hang on Bios[Dbg]32 73 74 // 75 // Pointers must be aligned to these address to function 76 // 77 78 #define MIN_ALIGNMENT_SIZE 8 79 80 #define ALIGN_VARIABLE(Value ,Adjustment) \ 81 (UINTN)Adjustment = 0; \ 82 if((UINTN)Value % MIN_ALIGNMENT_SIZE) \ 83 (UINTN)Adjustment = MIN_ALIGNMENT_SIZE - ((UINTN)Value % MIN_ALIGNMENT_SIZE); \ 84 Value = (UINTN)Value + (UINTN)Adjustment 85 86 87 // 88 // Define macros to build data structure signatures from characters. 89 // 90 91 #define EFI_SIGNATURE_16(A,B) ((A) | (B<<8)) 92 #define EFI_SIGNATURE_32(A,B,C,D) (EFI_SIGNATURE_16(A,B) | (EFI_SIGNATURE_16(C,D) << 16)) 93 #define EFI_SIGNATURE_64(A,B,C,D,E,F,G,H) (EFI_SIGNATURE_32(A,B,C,D) | ((UINT64)(EFI_SIGNATURE_32(E,F,G,H)) << 32)) 94 95 // 96 // EFIAPI - prototype calling convention for EFI function pointers 97 // BOOTSERVICE - prototype for implementation of a boot service interface 98 // RUNTIMESERVICE - prototype for implementation of a runtime service interface 99 // RUNTIMEFUNCTION - prototype for implementation of a runtime function that is not a service 100 // RUNTIME_CODE - pragma macro for declaring runtime code 101 // 102 103 #ifndef EFIAPI // Forces EFI calling conventions reguardless of compiler options 104 #define EFIAPI // Substitute expresion to force C calling convention 105 #endif 106 107 #define BOOTSERVICE 108 #define RUNTIMESERVICE 109 #define RUNTIMEFUNCTION 110 111 112 #define RUNTIME_CODE(a) alloc_text("rtcode", a) 113 #define BEGIN_RUNTIME_DATA() data_seg("rtdata") 114 #define END_RUNTIME_DATA() data_seg("") 115 116 #define VOLATILE volatile 117 118 #define MEMORY_FENCE __sync_synchronize 119 120 // 121 // When build similiar to FW, then link everything together as 122 // one big module. 123 // 124 125 #define EFI_DRIVER_ENTRY_POINT(InitFunction) \ 126 UINTN \ 127 InitializeDriver ( \ 128 VOID *ImageHandle, \ 129 VOID *SystemTable \ 130 ) \ 131 { \ 132 return InitFunction(ImageHandle, \ 133 SystemTable); \ 134 } \ 135 \ 136 EFI_STATUS efi_main( \ 137 EFI_HANDLE image, \ 138 EFI_SYSTEM_TABLE *systab \ 139 ) __attribute__((weak, \ 140 alias ("InitializeDriver"))); 141 142 #define LOAD_INTERNAL_DRIVER(_if, type, name, entry) \ 143 (_if)->LoadInternal(type, name, entry) 144 145 146 // 147 // Some compilers don't support the forward reference construct: 148 // typedef struct XXXXX 149 // 150 // The following macro provide a workaround for such cases. 151 152 #define INTERFACE_DECL(x) struct x 153 154 #define uefi_call_wrapper(func, va_num, ...) func(__VA_ARGS__) 155 #define EFI_FUNCTION 156 157 static inline UINT64 swap_uint64 (UINT64 v) 158 { 159 asm volatile ( 160 "dsbh %[v], %[v] \n\t" 161 "dshd %[v], %[v] \n\t" 162 :[v]"+r"(v) 163 ); 164 165 return v; 166 } 167