src/helper/types.h

   1 /***************************************************************************
   2  *   Copyright (C) 2004, 2005 by Dominic Rath                              *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  22  ***************************************************************************/
  23 #ifndef TYPES_H
  24 #define TYPES_H
  25
  26 #ifdef HAVE_SYS_TYPES_H
  27 #include <sys/types.h>
  28 #endif
  29 #ifdef HAVE_STDINT_H
  30 #include <stdint.h>
  31 #endif
  32 #ifdef HAVE_INTTYPES_H
  33 #include <inttypes.h>
  34 #endif
  35
  36 typedef struct jtag_tap_s jtag_tap_t;
  37
  38 #ifdef HAVE_STDBOOL_H
  39 #include <stdbool.h>
  40 #else   /* HAVE_STDBOOL_H */
  41 #define __bool_true_false_are_defined 1
  42
  43 #ifndef HAVE__BOOL
  44 #ifndef __cplusplus
  45
  46 #define false   0
  47 #define true            1
  48
  49 typedef int _Bool;
  50 #else
  51 typedef bool _Bool;
  52 #endif  /* __cplusplus */
  53 #endif  /* HAVE__BOOL */
  54
  55 #define bool _Bool
  56
  57 #endif  /* HAVE_STDBOOL_H */
  58
  59 /* DANGER!!!! here be dragons!
  60  *
  61  * Leave these fn's as byte accesses because it is safe
  62  * across architectures. Clever usage of 32 bit access
  63  * will create problems on some hosts.
  64  *
  65  * Note that the "buf" pointer in memory is probably unaligned.
  66  *
  67  * Were these functions to be re-written to take a 32 bit wide or 16 bit wide
  68  * memory access shortcut, then on some CPU's, i.e. ARM7, the 2 lsbytes of the address are
  69  * ignored for 32 bit access, whereas on other CPU's a 32 bit wide unaligned memory access
  70  * will cause an exception, and lastly on x86, an unaligned "greater than bytewide"
  71  * memory access works as if aligned.  So what follows below will work for all
  72  * platforms and gives the compiler leeway to do its own platform specific optimizations.
  73  *
  74  * Again, note that the "buf" pointer in memory is probably unaligned.
  75  */
  76
  77
  78 static inline uint32_t le_to_h_u32(const uint8_t* buf)
  79 {
  80         return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
  81 }
  82
  83 static inline uint16_t le_to_h_u16(const uint8_t* buf)
  84 {
  85         return (uint16_t)(buf[0] | buf[1] << 8);
  86 }
  87
  88 static inline uint32_t be_to_h_u32(const uint8_t* buf)
  89 {
  90         return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
  91 }
  92
  93 static inline uint16_t be_to_h_u16(const uint8_t* buf)
  94 {
  95         return (uint16_t)(buf[1] | buf[0] << 8);
  96 }
  97
  98 static inline void h_u32_to_le(uint8_t* buf, int val)
  99 {
 100         buf[3] = (uint8_t) (val >> 24);
 101         buf[2] = (uint8_t) (val >> 16);
 102         buf[1] = (uint8_t) (val >> 8);
 103         buf[0] = (uint8_t) (val >> 0);
 104 }
 105
 106 static inline void h_u32_to_be(uint8_t* buf, int val)
 107 {
 108         buf[0] = (uint8_t) (val >> 24);
 109         buf[1] = (uint8_t) (val >> 16);
 110         buf[2] = (uint8_t) (val >> 8);
 111         buf[3] = (uint8_t) (val >> 0);
 112 }
 113
 114 static inline void h_u16_to_le(uint8_t* buf, int val)
 115 {
 116         buf[1] = (uint8_t) (val >> 8);
 117         buf[0] = (uint8_t) (val >> 0);
 118 }
 119
 120 static inline void h_u16_to_be(uint8_t* buf, int val)
 121 {
 122         buf[0] = (uint8_t) (val >> 8);
 123         buf[1] = (uint8_t) (val >> 0);
 124 }
 125
 126 #ifdef __ECOS
 127 /* eCos plain lacks these definition... A series of upstream patches
 128  * could probably repair it, but it seems like too much work to be
 129  * worth it.
 130  */
 131
 132
 133 #define PRIx32 "x"
 134 #define PRId32 "d"
 135 #define SCNx32 "x"
 136 #define PRIi32 "i"
 137 #define PRIu32 "u"
 138
 139 typedef CYG_ADDRWORD intptr_t;
 140 typedef int64_t intmax_t;
 141 typedef uint64_t uintmax_t;
 142 #define INT8_MAX 0x7f
 143 #define INT8_MIN (-INT8_MAX - 1)
 144 # define UINT8_MAX              (255)
 145 #define INT16_MAX 0x7fff
 146 #define INT16_MIN (-INT16_MAX - 1)
 147 # define UINT16_MAX             (65535)
 148 #define INT32_MAX 0x7fffffffL
 149 #define INT32_MIN (-INT32_MAX - 1L)
 150 # define UINT32_MAX             (4294967295U)
 151 #define INT64_MAX 0x7fffffffffffffffLL
 152 #define INT64_MIN (-INT64_MAX - 1LL)
 153 #define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
 154
 155
 156
 157
 158 #endif
 159
 160 #endif /* TYPES_H */