50f5fe2d4c1dc6d3e2418e482137e41e5d87dac8
[openocd.git] / src / helper / types.h
1 /***************************************************************************
2 * Copyright (C) 2004, 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind 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 /// turns a macro argument into a string constant
60 #define stringify(s) __stringify(s)
61 #define __stringify(s) #s
62
63 /* DANGER!!!! here be dragons!
64 *
65 * Leave these fn's as byte accesses because it is safe
66 * across architectures. Clever usage of 32 bit access
67 * will create problems on some hosts.
68 *
69 * Note that the "buf" pointer in memory is probably unaligned.
70 *
71 * Were these functions to be re-written to take a 32 bit wide or 16 bit wide
72 * memory access shortcut, then on some CPU's, i.e. ARM7, the 2 lsbytes of the address are
73 * ignored for 32 bit access, whereas on other CPU's a 32 bit wide unaligned memory access
74 * will cause an exception, and lastly on x86, an unaligned "greater than bytewide"
75 * memory access works as if aligned. So what follows below will work for all
76 * platforms and gives the compiler leeway to do its own platform specific optimizations.
77 *
78 * Again, note that the "buf" pointer in memory is probably unaligned.
79 */
80
81
82 static inline uint32_t le_to_h_u32(const uint8_t* buf)
83 {
84 return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
85 }
86
87 static inline uint16_t le_to_h_u16(const uint8_t* buf)
88 {
89 return (uint16_t)(buf[0] | buf[1] << 8);
90 }
91
92 static inline uint32_t be_to_h_u32(const uint8_t* buf)
93 {
94 return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
95 }
96
97 static inline uint16_t be_to_h_u16(const uint8_t* buf)
98 {
99 return (uint16_t)(buf[1] | buf[0] << 8);
100 }
101
102 static inline void h_u32_to_le(uint8_t* buf, int val)
103 {
104 buf[3] = (uint8_t) (val >> 24);
105 buf[2] = (uint8_t) (val >> 16);
106 buf[1] = (uint8_t) (val >> 8);
107 buf[0] = (uint8_t) (val >> 0);
108 }
109
110 static inline void h_u32_to_be(uint8_t* buf, int val)
111 {
112 buf[0] = (uint8_t) (val >> 24);
113 buf[1] = (uint8_t) (val >> 16);
114 buf[2] = (uint8_t) (val >> 8);
115 buf[3] = (uint8_t) (val >> 0);
116 }
117
118 static inline void h_u16_to_le(uint8_t* buf, int val)
119 {
120 buf[1] = (uint8_t) (val >> 8);
121 buf[0] = (uint8_t) (val >> 0);
122 }
123
124 static inline void h_u16_to_be(uint8_t* buf, int val)
125 {
126 buf[0] = (uint8_t) (val >> 8);
127 buf[1] = (uint8_t) (val >> 0);
128 }
129
130 #if defined(__ECOS)
131
132 /* eCos plain lacks these definition... A series of upstream patches
133 * could probably repair it, but it seems like too much work to be
134 * worth it.
135 */
136
137 #if !defined(_STDINT_H)
138 #define PRIx32 "x"
139 #define PRId32 "d"
140 #define SCNx32 "x"
141 #define PRIi32 "i"
142 #define PRIu32 "u"
143
144 typedef CYG_ADDRWORD intptr_t;
145 typedef int64_t intmax_t;
146 typedef uint64_t uintmax_t;
147 #define INT8_MAX 0x7f
148 #define INT8_MIN (-INT8_MAX - 1)
149 # define UINT8_MAX (255)
150 #define INT16_MAX 0x7fff
151 #define INT16_MIN (-INT16_MAX - 1)
152 # define UINT16_MAX (65535)
153 #define INT32_MAX 0x7fffffffL
154 #define INT32_MIN (-INT32_MAX - 1L)
155 # define UINT32_MAX (4294967295U)
156 #define INT64_MAX 0x7fffffffffffffffLL
157 #define INT64_MIN (-INT64_MAX - 1LL)
158 #define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
159 #endif
160
161 #ifndef LLONG_MAX
162 #define ULLONG_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
163 #define LLONG_MAX INT64_C(0x7FFFFFFFFFFFFFFF)
164 #define LLONG_MIN ULLONG_MAX
165 #endif
166
167
168 #define ULLONG_MAX 18446744073709551615
169
170 /* C99, eCos is C90 compliant (with bits of C99) */
171 #define isblank(c) ((c) == ' ' || (c) == '\t')
172
173
174 #endif
175
176 #endif /* TYPES_H */