RTEMS 6.1-rc7
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byteorder.h
1/* SPDX-License-Identifier: BSD-2-Clause */
2
3/*
4 * byteorder.h - Endian conversion for SPARC. SPARC is big endian only.
5 *
6 * COPYRIGHT (c) 2011
7 * Aeroflex Gaisler.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef _LIBCPU_BYTEORDER_H
32#define _LIBCPU_BYTEORDER_H
33
34#include <rtems/score/cpu.h>
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40static inline uint16_t ld_le16(volatile uint16_t *addr)
41{
42 return CPU_swap_u16(*addr);
43}
44
45static inline void st_le16(volatile uint16_t *addr, uint16_t val)
46{
47 *addr = CPU_swap_u16(val);
48}
49
50static inline uint32_t ld_le32(volatile uint32_t *addr)
51{
52 return CPU_swap_u32(*addr);
53}
54
55static inline void st_le32(volatile uint32_t *addr, uint32_t val)
56{
57 *addr = CPU_swap_u32(val);
58}
59
60static inline uint16_t ld_be16(volatile uint16_t *addr)
61{
62 return *addr;
63}
64
65static inline void st_be16(volatile uint16_t *addr, uint16_t val)
66{
67 *addr = val;
68}
69
70static inline uint32_t ld_be32(volatile uint32_t *addr)
71{
72 return *addr;
73}
74
75static inline void st_be32(volatile uint32_t *addr, uint32_t val)
76{
77 *addr = val;
78}
79
80#ifdef __cplusplus
81}
82#endif
83
84#endif
#define CPU_swap_u16(value)
Definition: cpu.h:597