libfdt_env.h revision 1.2.2.2
1 1.2.2.2 skrll #ifndef _LIBFDT_ENV_H 2 1.2.2.2 skrll #define _LIBFDT_ENV_H 3 1.2.2.2 skrll /* 4 1.2.2.2 skrll * libfdt - Flat Device Tree manipulation 5 1.2.2.2 skrll * Copyright (C) 2006 David Gibson, IBM Corporation. 6 1.2.2.2 skrll * Copyright 2012 Kim Phillips, Freescale Semiconductor. 7 1.2.2.2 skrll * 8 1.2.2.2 skrll * libfdt is dual licensed: you can use it either under the terms of 9 1.2.2.2 skrll * the GPL, or the BSD license, at your option. 10 1.2.2.2 skrll * 11 1.2.2.2 skrll * a) This library is free software; you can redistribute it and/or 12 1.2.2.2 skrll * modify it under the terms of the GNU General Public License as 13 1.2.2.2 skrll * published by the Free Software Foundation; either version 2 of the 14 1.2.2.2 skrll * License, or (at your option) any later version. 15 1.2.2.2 skrll * 16 1.2.2.2 skrll * This library is distributed in the hope that it will be useful, 17 1.2.2.2 skrll * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 1.2.2.2 skrll * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 1.2.2.2 skrll * GNU General Public License for more details. 20 1.2.2.2 skrll * 21 1.2.2.2 skrll * You should have received a copy of the GNU General Public 22 1.2.2.2 skrll * License along with this library; if not, write to the Free 23 1.2.2.2 skrll * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, 24 1.2.2.2 skrll * MA 02110-1301 USA 25 1.2.2.2 skrll * 26 1.2.2.2 skrll * Alternatively, 27 1.2.2.2 skrll * 28 1.2.2.2 skrll * b) Redistribution and use in source and binary forms, with or 29 1.2.2.2 skrll * without modification, are permitted provided that the following 30 1.2.2.2 skrll * conditions are met: 31 1.2.2.2 skrll * 32 1.2.2.2 skrll * 1. Redistributions of source code must retain the above 33 1.2.2.2 skrll * copyright notice, this list of conditions and the following 34 1.2.2.2 skrll * disclaimer. 35 1.2.2.2 skrll * 2. Redistributions in binary form must reproduce the above 36 1.2.2.2 skrll * copyright notice, this list of conditions and the following 37 1.2.2.2 skrll * disclaimer in the documentation and/or other materials 38 1.2.2.2 skrll * provided with the distribution. 39 1.2.2.2 skrll * 40 1.2.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 41 1.2.2.2 skrll * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 42 1.2.2.2 skrll * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 43 1.2.2.2 skrll * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 44 1.2.2.2 skrll * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 45 1.2.2.2 skrll * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 46 1.2.2.2 skrll * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 47 1.2.2.2 skrll * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 48 1.2.2.2 skrll * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 49 1.2.2.2 skrll * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 50 1.2.2.2 skrll * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 51 1.2.2.2 skrll * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 52 1.2.2.2 skrll * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53 1.2.2.2 skrll */ 54 1.2.2.2 skrll 55 1.2.2.2 skrll #if defined(_KERNEL) 56 1.2.2.2 skrll #include <sys/param.h> 57 1.2.2.2 skrll #include <sys/types.h> 58 1.2.2.2 skrll #else 59 1.2.2.2 skrll #include <stddef.h> 60 1.2.2.2 skrll #include <stdint.h> 61 1.2.2.2 skrll #include <string.h> 62 1.2.2.2 skrll #endif 63 1.2.2.2 skrll 64 1.2.2.2 skrll #ifdef __CHECKER__ 65 1.2.2.2 skrll #define __force __attribute__((force)) 66 1.2.2.2 skrll #define __bitwise __attribute__((bitwise)) 67 1.2.2.2 skrll #else 68 1.2.2.2 skrll #define __force 69 1.2.2.2 skrll #define __bitwise 70 1.2.2.2 skrll #endif 71 1.2.2.2 skrll 72 1.2.2.2 skrll typedef uint16_t __bitwise fdt16_t; 73 1.2.2.2 skrll typedef uint32_t __bitwise fdt32_t; 74 1.2.2.2 skrll typedef uint64_t __bitwise fdt64_t; 75 1.2.2.2 skrll 76 1.2.2.2 skrll #define EXTRACT_BYTE(x, n) ((unsigned long long)((uint8_t *)&x)[n]) 77 1.2.2.2 skrll #define CPU_TO_FDT16(x) ((EXTRACT_BYTE(x, 0) << 8) | EXTRACT_BYTE(x, 1)) 78 1.2.2.2 skrll #define CPU_TO_FDT32(x) ((EXTRACT_BYTE(x, 0) << 24) | (EXTRACT_BYTE(x, 1) << 16) | \ 79 1.2.2.2 skrll (EXTRACT_BYTE(x, 2) << 8) | EXTRACT_BYTE(x, 3)) 80 1.2.2.2 skrll #define CPU_TO_FDT64(x) ((EXTRACT_BYTE(x, 0) << 56) | (EXTRACT_BYTE(x, 1) << 48) | \ 81 1.2.2.2 skrll (EXTRACT_BYTE(x, 2) << 40) | (EXTRACT_BYTE(x, 3) << 32) | \ 82 1.2.2.2 skrll (EXTRACT_BYTE(x, 4) << 24) | (EXTRACT_BYTE(x, 5) << 16) | \ 83 1.2.2.2 skrll (EXTRACT_BYTE(x, 6) << 8) | EXTRACT_BYTE(x, 7)) 84 1.2.2.2 skrll 85 1.2.2.2 skrll static inline uint16_t fdt16_to_cpu(fdt16_t x) 86 1.2.2.2 skrll { 87 1.2.2.2 skrll return (__force uint16_t)CPU_TO_FDT16(x); 88 1.2.2.2 skrll } 89 1.2.2.2 skrll static inline fdt16_t cpu_to_fdt16(uint16_t x) 90 1.2.2.2 skrll { 91 1.2.2.2 skrll return (__force fdt16_t)CPU_TO_FDT16(x); 92 1.2.2.2 skrll } 93 1.2.2.2 skrll 94 1.2.2.2 skrll static inline uint32_t fdt32_to_cpu(fdt32_t x) 95 1.2.2.2 skrll { 96 1.2.2.2 skrll return (__force uint32_t)CPU_TO_FDT32(x); 97 1.2.2.2 skrll } 98 1.2.2.2 skrll static inline fdt32_t cpu_to_fdt32(uint32_t x) 99 1.2.2.2 skrll { 100 1.2.2.2 skrll return (__force fdt32_t)CPU_TO_FDT32(x); 101 1.2.2.2 skrll } 102 1.2.2.2 skrll 103 1.2.2.2 skrll static inline uint64_t fdt64_to_cpu(fdt64_t x) 104 1.2.2.2 skrll { 105 1.2.2.2 skrll return (__force uint64_t)CPU_TO_FDT64(x); 106 1.2.2.2 skrll } 107 1.2.2.2 skrll static inline fdt64_t cpu_to_fdt64(uint64_t x) 108 1.2.2.2 skrll { 109 1.2.2.2 skrll return (__force fdt64_t)CPU_TO_FDT64(x); 110 1.2.2.2 skrll } 111 1.2.2.2 skrll #undef CPU_TO_FDT64 112 1.2.2.2 skrll #undef CPU_TO_FDT32 113 1.2.2.2 skrll #undef CPU_TO_FDT16 114 1.2.2.2 skrll #undef EXTRACT_BYTE 115 1.2.2.2 skrll 116 1.2.2.2 skrll #endif /* _LIBFDT_ENV_H */ 117
Indexes created Thu Oct 02 14:10:14 GMT 2025