1 | /* $FreeBSD$ */ |
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2 | /* |
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3 | * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 | * SUCH DAMAGE. |
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25 | */ |
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26 | |
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27 | #ifndef _USB_ENDIAN_H_ |
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28 | #define _USB_ENDIAN_H_ |
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29 | |
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30 | #include <sys/stdint.h> |
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31 | #include <sys/endian.h> |
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32 | |
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33 | /* |
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34 | * Declare the basic USB record types. USB records have an alignment |
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35 | * of 1 byte and are always packed. |
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36 | */ |
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37 | typedef uint8_t uByte; |
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38 | typedef uint8_t uWord[2]; |
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39 | typedef uint8_t uDWord[4]; |
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40 | typedef uint8_t uQWord[8]; |
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41 | |
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42 | /* |
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43 | * Define a set of macros that can get and set data independent of |
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44 | * CPU endianness and CPU alignment requirements: |
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45 | */ |
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46 | #define UGETB(w) \ |
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47 | ((w)[0]) |
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48 | |
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49 | #define UGETW(w) \ |
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50 | ((w)[0] | \ |
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51 | (((uint16_t)((w)[1])) << 8)) |
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52 | |
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53 | #define UGETDW(w) \ |
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54 | ((w)[0] | \ |
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55 | (((uint16_t)((w)[1])) << 8) | \ |
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56 | (((uint32_t)((w)[2])) << 16) | \ |
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57 | (((uint32_t)((w)[3])) << 24)) |
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58 | |
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59 | #define UGETQW(w) \ |
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60 | ((w)[0] | \ |
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61 | (((uint16_t)((w)[1])) << 8) | \ |
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62 | (((uint32_t)((w)[2])) << 16) | \ |
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63 | (((uint32_t)((w)[3])) << 24) | \ |
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64 | (((uint64_t)((w)[4])) << 32) | \ |
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65 | (((uint64_t)((w)[5])) << 40) | \ |
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66 | (((uint64_t)((w)[6])) << 48) | \ |
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67 | (((uint64_t)((w)[7])) << 56)) |
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68 | |
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69 | #define USETB(w,v) do { \ |
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70 | (w)[0] = (uint8_t)(v); \ |
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71 | } while (0) |
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72 | |
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73 | #define USETW(w,v) do { \ |
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74 | (w)[0] = (uint8_t)(v); \ |
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75 | (w)[1] = (uint8_t)((v) >> 8); \ |
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76 | } while (0) |
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77 | |
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78 | #define USETDW(w,v) do { \ |
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79 | (w)[0] = (uint8_t)(v); \ |
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80 | (w)[1] = (uint8_t)((v) >> 8); \ |
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81 | (w)[2] = (uint8_t)((v) >> 16); \ |
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82 | (w)[3] = (uint8_t)((v) >> 24); \ |
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83 | } while (0) |
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84 | |
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85 | #define USETQW(w,v) do { \ |
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86 | (w)[0] = (uint8_t)(v); \ |
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87 | (w)[1] = (uint8_t)((v) >> 8); \ |
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88 | (w)[2] = (uint8_t)((v) >> 16); \ |
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89 | (w)[3] = (uint8_t)((v) >> 24); \ |
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90 | (w)[4] = (uint8_t)((v) >> 32); \ |
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91 | (w)[5] = (uint8_t)((v) >> 40); \ |
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92 | (w)[6] = (uint8_t)((v) >> 48); \ |
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93 | (w)[7] = (uint8_t)((v) >> 56); \ |
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94 | } while (0) |
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95 | |
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96 | #define USETW2(w,b1,b0) do { \ |
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97 | (w)[0] = (uint8_t)(b0); \ |
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98 | (w)[1] = (uint8_t)(b1); \ |
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99 | } while (0) |
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100 | |
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101 | #define USETW4(w,b3,b2,b1,b0) do { \ |
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102 | (w)[0] = (uint8_t)(b0); \ |
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103 | (w)[1] = (uint8_t)(b1); \ |
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104 | (w)[2] = (uint8_t)(b2); \ |
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105 | (w)[3] = (uint8_t)(b3); \ |
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106 | } while (0) |
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107 | |
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108 | #define USETW8(w,b7,b6,b5,b4,b3,b2,b1,b0) do { \ |
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109 | (w)[0] = (uint8_t)(b0); \ |
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110 | (w)[1] = (uint8_t)(b1); \ |
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111 | (w)[2] = (uint8_t)(b2); \ |
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112 | (w)[3] = (uint8_t)(b3); \ |
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113 | (w)[4] = (uint8_t)(b4); \ |
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114 | (w)[5] = (uint8_t)(b5); \ |
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115 | (w)[6] = (uint8_t)(b6); \ |
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116 | (w)[7] = (uint8_t)(b7); \ |
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117 | } while (0) |
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118 | |
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119 | #endif /* _USB_ENDIAN_H_ */ |
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