Remove config.h from types.h; all .c files are required to include it.
[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
30 #ifndef u8
31 typedef unsigned char u8;
32 #endif
33
34 #ifndef u16
35 typedef unsigned short u16;
36 #endif
37
38 #ifndef u32
39 typedef unsigned int u32;
40 #endif
41
42 #ifndef u64
43 typedef unsigned long long u64;
44 #endif
45
46 typedef struct jtag_tap_s jtag_tap_t;
47
48 #ifdef HAVE_STDBOOL_H
49 #include <stdbool.h>
50 #else /* HAVE_STDBOOL_H */
51 #define __bool_true_false_are_defined 1
52
53 #ifndef HAVE__BOOL
54 #ifndef __cplusplus
55
56 #define false 0
57 #define true 1
58
59 typedef int _Bool;
60 #else
61 typedef bool _Bool;
62 #endif /* __cplusplus */
63 #endif /* HAVE__BOOL */
64
65 #define bool _Bool
66
67 #endif /* HAVE_STDBOOL_H */
68
69 /* DANGER!!!! here be dragons!
70 *
71 * Leave these fn's as byte accesses because it is safe
72 * across architectures. Clever usage of 32 bit access
73 * will create problems on some hosts.
74 *
75 * Note that the "buf" pointer in memory is probably unaligned.
76 *
77 * Were these functions to be re-written to take a 32 bit wide or 16 bit wide
78 * memory access shortcut, then on some CPU's, i.e. ARM7, the 2 lsbytes of the address are
79 * ignored for 32 bit access, whereas on other CPU's a 32 bit wide unaligned memory access
80 * will cause an exception, and lastly on x86, an unaligned "greater than bytewide"
81 * memory access works as if aligned. So what follows below will work for all
82 * platforms and gives the compiler leeway to do its own platform specific optimizations.
83 *
84 * Again, note that the "buf" pointer in memory is probably unaligned.
85 */
86
87
88 static inline u32 le_to_h_u32(const u8* buf)
89 {
90 return (u32)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
91 }
92
93 static inline u16 le_to_h_u16(const u8* buf)
94 {
95 return (u16)(buf[0] | buf[1] << 8);
96 }
97
98 static inline u32 be_to_h_u32(const u8* buf)
99 {
100 return (u32)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
101 }
102
103 static inline u16 be_to_h_u16(const u8* buf)
104 {
105 return (u16)(buf[1] | buf[0] << 8);
106 }
107
108 static inline void h_u32_to_le(u8* buf, int val)
109 {
110 buf[3] = (u8) (val >> 24);
111 buf[2] = (u8) (val >> 16);
112 buf[1] = (u8) (val >> 8);
113 buf[0] = (u8) (val >> 0);
114 }
115
116 static inline void h_u32_to_be(u8* buf, int val)
117 {
118 buf[0] = (u8) (val >> 24);
119 buf[1] = (u8) (val >> 16);
120 buf[2] = (u8) (val >> 8);
121 buf[3] = (u8) (val >> 0);
122 }
123
124 static inline void h_u16_to_le(u8* buf, int val)
125 {
126 buf[1] = (u8) (val >> 8);
127 buf[0] = (u8) (val >> 0);
128 }
129
130 static inline void h_u16_to_be(u8* buf, int val)
131 {
132 buf[0] = (u8) (val >> 8);
133 buf[1] = (u8) (val >> 0);
134 }
135
136 #endif /* TYPES_H */