RTEMS: bsps/include/bsp/utility.h Source File

| RTEMS 5.4-rc2

Loading...
Searching...
No Matches
utility.h
Go to the documentation of this file.
1
9/*
10 * Copyright (c) 2008-2011 embedded brains GmbH. All rights reserved.
11 *
12 * embedded brains GmbH
13 * Obere Lagerstr. 30
14 * 82178 Puchheim
15 * Germany
16 * <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef LIBCPU_SHARED_UTILITY_H
24#define LIBCPU_SHARED_UTILITY_H
25
26#include <stdint.h>
27
28#define BSP_BIT8(bit) \
29 ((uint8_t) (((unsigned int) 1) << (bit)))
30
31#define BSP_MSK8(first_bit, last_bit) \
32 ((uint8_t) ((BSP_BIT8((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
33
34#define BSP_FLD8(val, first_bit, last_bit) \
35 ((uint8_t) \
36 ((((unsigned int) (val)) << (first_bit)) & BSP_MSK8(first_bit, last_bit)))
37
38#define BSP_FLD8GET(reg, first_bit, last_bit) \
39 ((uint8_t) (((reg) & BSP_MSK8(first_bit, last_bit)) >> (first_bit)))
40
41#define BSP_FLD8SET(reg, val, first_bit, last_bit) \
42 ((uint8_t) (((reg) & ~BSP_MSK8(first_bit, last_bit)) \
43 | BSP_FLD8(val, first_bit, last_bit)))
44
45#define BSP_BIT16(bit) \
46 ((uint16_t) (((unsigned int) 1) << (bit)))
47
48#define BSP_MSK16(first_bit, last_bit) \
49 ((uint16_t) ((BSP_BIT16((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
50
51#define BSP_FLD16(val, first_bit, last_bit) \
52 ((uint16_t) \
53 ((((unsigned int) (val)) << (first_bit)) & BSP_MSK16(first_bit, last_bit)))
54
55#define BSP_FLD16GET(reg, first_bit, last_bit) \
56 ((uint16_t) (((reg) & BSP_MSK16(first_bit, last_bit)) >> (first_bit)))
57
58#define BSP_FLD16SET(reg, val, first_bit, last_bit) \
59 ((uint16_t) (((reg) & ~BSP_MSK16(first_bit, last_bit)) \
60 | BSP_FLD16(val, first_bit, last_bit)))
61
62#define BSP_BIT32(bit) \
63 ((uint32_t) (((uint32_t) 1) << (bit)))
64
65#define BSP_MSK32(first_bit, last_bit) \
66 ((uint32_t) ((BSP_BIT32((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
67
68#define BSP_FLD32(val, first_bit, last_bit) \
69 ((uint32_t) \
70 ((((uint32_t) (val)) << (first_bit)) & BSP_MSK32(first_bit, last_bit)))
71
72#define BSP_FLD32GET(reg, first_bit, last_bit) \
73 ((uint32_t) (((reg) & BSP_MSK32(first_bit, last_bit)) >> (first_bit)))
74
75#define BSP_FLD32SET(reg, val, first_bit, last_bit) \
76 ((uint32_t) (((reg) & ~BSP_MSK32(first_bit, last_bit)) \
77 | BSP_FLD32(val, first_bit, last_bit)))
78
79#define BSP_BIT64(bit) \
80 ((uint64_t) (((uint64_t) 1) << (bit)))
81
82#define BSP_MSK64(first_bit, last_bit) \
83 ((uint64_t) ((BSP_BIT64((last_bit) - (first_bit) + 1) - 1) << (first_bit)))
84
85#define BSP_FLD64(val, first_bit, last_bit) \
86 ((uint64_t) \
87 ((((uint64_t) (val)) << (first_bit)) & BSP_MSK64(first_bit, last_bit)))
88
89#define BSP_FLD64GET(reg, first_bit, last_bit) \
90 ((uint64_t) (((reg) & BSP_MSK64(first_bit, last_bit)) >> (first_bit)))
91
92#define BSP_FLD64SET(reg, val, first_bit, last_bit) \
93 ((uint64_t) (((reg) & ~BSP_MSK64(first_bit, last_bit)) \
94 | BSP_FLD64(val, first_bit, last_bit)))
95
96#define BSP_BBIT8(bit) \
97 BSP_BIT8(7 - (bit))
98
99#define BSP_BMSK8(first_bit, last_bit) \
100 BSP_MSK8(7 - (last_bit), 7 - (first_bit))
101
102#define BSP_BFLD8(val, first_bit, last_bit) \
103 BSP_FLD8(val, 7 - (last_bit), 7 - (first_bit))
104
105#define BSP_BFLD8GET(reg, first_bit, last_bit) \
106 BSP_FLD8GET(reg, 7 - (last_bit), 7 - (first_bit))
107
108#define BSP_BFLD8SET(reg, val, first_bit, last_bit) \
109 BSP_FLD8SET(reg, val, 7 - (last_bit), 7 - (first_bit))
110
111#define BSP_BBIT16(bit) \
112 BSP_BIT16(15 - (bit))
113
114#define BSP_BMSK16(first_bit, last_bit) \
115 BSP_MSK16(15 - (last_bit), 15 - (first_bit))
116
117#define BSP_BFLD16(val, first_bit, last_bit) \
118 BSP_FLD16(val, 15 - (last_bit), 15 - (first_bit))
119
120#define BSP_BFLD16GET(reg, first_bit, last_bit) \
121 BSP_FLD16GET(reg, 15 - (last_bit), 15 - (first_bit))
122
123#define BSP_BFLD16SET(reg, val, first_bit, last_bit) \
124 BSP_FLD16SET(reg, val, 15 - (last_bit), 15 - (first_bit))
125
126#define BSP_BBIT32(bit) \
127 BSP_BIT32(31 - (bit))
128
129#define BSP_BMSK32(first_bit, last_bit) \
130 BSP_MSK32(31 - (last_bit), 31 - (first_bit))
131
132#define BSP_BFLD32(val, first_bit, last_bit) \
133 BSP_FLD32(val, 31 - (last_bit), 31 - (first_bit))
134
135#define BSP_BFLD32GET(reg, first_bit, last_bit) \
136 BSP_FLD32GET(reg, 31 - (last_bit), 31 - (first_bit))
137
138#define BSP_BFLD32SET(reg, val, first_bit, last_bit) \
139 BSP_FLD32SET(reg, val, 31 - (last_bit), 31 - (first_bit))
140
141#define BSP_BBIT64(bit) \
142 BSP_BIT64(63 - (bit))
143
144#define BSP_BMSK64(first_bit, last_bit) \
145 BSP_MSK64(63 - (last_bit), 63 - (first_bit))
146
147#define BSP_BFLD64(val, first_bit, last_bit) \
148 BSP_FLD64(val, 63 - (last_bit), 63 - (first_bit))
149
150#define BSP_BFLD64GET(reg, first_bit, last_bit) \
151 BSP_FLD64GET(reg, 63 - (last_bit), 63 - (first_bit))
152
153#define BSP_BFLD64SET(reg, val, first_bit, last_bit) \
154 BSP_FLD64SET(reg, val, 63 - (last_bit), 63 - (first_bit))
155
156#endif /* LIBCPU_SHARED_UTILITY_H */