mirror of
https://github.com/RT-Thread/rt-thread.git
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wusongjie
179157f4e1
We add the device name and id set api in DM, now driver could set name like sprintf without know how many devices it is. The misc.h and byteorder.h add some macros to developers that they always use in drivers. Signed-off-by: GuEe-GUI <GuEe-GUI@github.com>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-02-25 GuEe-GUI the first version
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*/
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#ifndef __BYTEORDER__
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#define __BYTEORDER__
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#ifdef __CHECKER__
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#define __bitwise __attribute__((bitwise))
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#else
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#define __bitwise
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#endif
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typedef rt_uint16_t __bitwise rt_le16_t;
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typedef rt_uint32_t __bitwise rt_le32_t;
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typedef rt_uint64_t __bitwise rt_le64_t;
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typedef rt_uint16_t __bitwise rt_be16_t;
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typedef rt_uint32_t __bitwise rt_be32_t;
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typedef rt_uint64_t __bitwise rt_be64_t;
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/* gcc defines __BIG_ENDIAN__ on big endian targets */
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#if defined(__BIG_ENDIAN__) || defined(ARCH_CPU_BIG_ENDIAN)
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#define rt_cpu_to_be16(x) (x)
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#define rt_cpu_to_be32(x) (x)
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#define rt_cpu_to_be64(x) (x)
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#define rt_be16_to_cpu(x) (x)
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#define rt_be32_to_cpu(x) (x)
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#define rt_be64_to_cpu(x) (x)
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#define rt_le16_to_cpu(x) __builtin_bswap16(x)
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#define rt_le32_to_cpu(x) __builtin_bswap32(x)
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#define rt_le64_to_cpu(x) __builtin_bswap64(x)
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#define rt_cpu_to_le16(x) __builtin_bswap16(x)
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#define rt_cpu_to_le32(x) __builtin_bswap32(x)
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#define rt_cpu_to_le64(x) __builtin_bswap64(x)
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#else
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#define rt_cpu_to_be16(x) __builtin_bswap16(x)
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#define rt_cpu_to_be32(x) __builtin_bswap32(x)
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#define rt_cpu_to_be64(x) __builtin_bswap64(x)
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#define rt_be16_to_cpu(x) __builtin_bswap16(x)
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#define rt_be32_to_cpu(x) __builtin_bswap32(x)
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#define rt_be64_to_cpu(x) __builtin_bswap64(x)
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#define rt_le16_to_cpu(x) (x)
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#define rt_le32_to_cpu(x) (x)
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#define rt_le64_to_cpu(x) (x)
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#define rt_cpu_to_le16(x) (x)
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#define rt_cpu_to_le32(x) (x)
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#define rt_cpu_to_le64(x) (x)
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#endif /* __BIG_ENDIAN__ || ARCH_CPU_BIG_ENDIAN */
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#undef __bitwise
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#endif /* __BYTEORDER__ */
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