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Merge pull request #157 from pigrew/TI_compiler_quirks
TI compiler quirks, and LE byte swapping functions.
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@ -53,6 +53,9 @@
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// for declaration of reserved field, make use of _TU_COUNTER_
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#define TU_RESERVED TU_XSTRCAT(reserved, _TU_COUNTER_)
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#define TU_LITTLE_ENDIAN (0x12u)
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#define TU_BIG_ENDIAN (0x21u)
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//--------------------------------------------------------------------+
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// Compiler porting with Attribute and Endian
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//--------------------------------------------------------------------+
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@ -67,20 +70,68 @@
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// Endian conversion use well-known host to network (big endian) naming
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define tu_htonl(u32) __builtin_bswap32(u32)
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#define tu_ntohl(u32) __builtin_bswap32(u32)
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#define tu_htons(u16) __builtin_bswap16(u16)
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#define tu_ntohs(u16) __builtin_bswap16(u16)
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#define TU_BYTE_ORDER TU_LITTLE_ENDIAN
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#else
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#define tu_htonl(u32) (u32)
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#define tu_ntohl(u32) (u32)
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#define tu_htons(u16) (u16)
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#define tu_ntohs(u16) (u16)
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#define TU_BYTE_ORDER TU_BIG_ENDIAN
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#endif
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#define TU_BSWAP16(u16) (__builtin_bswap16(u16))
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#define TU_BSWAP32(u32) (__builtin_bswap32(u32))
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#elif defined(__TI_COMPILER_VERSION__)
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#define TU_ATTR_ALIGNED(Bytes) __attribute__ ((aligned(Bytes)))
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#define TU_ATTR_SECTION(sec_name) __attribute__ ((section(#sec_name)))
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#define TU_ATTR_PACKED __attribute__ ((packed))
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#define TU_ATTR_PREPACKED
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#define TU_ATTR_WEAK __attribute__ ((weak))
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#define TU_ATTR_DEPRECATED(mess) __attribute__ ((deprecated(mess))) // warn if function with this attribute is used
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#define TU_ATTR_UNUSED __attribute__ ((unused)) // Function/Variable is meant to be possibly unused
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// __BYTE_ORDER is defined in the TI ARM compiler, but not MSP430 (which is little endian)
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#if ((__BYTE_ORDER__) == (__ORDER_LITTLE_ENDIAN__)) || defined(__MSP430__)
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#define TU_BYTE_ORDER TU_LITTLE_ENDIAN
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#else
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#define TU_BYTE_ORDER TU_BIG_ENDIAN
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#endif
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#define TU_BSWAP16(u16) (__builtin_bswap16(u16))
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#define TU_BSWAP32(u32) (__builtin_bswap32(u32))
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#else
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#error "Compiler attribute porting are required"
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#error "Compiler attribute porting is required"
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#endif
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#if (TU_BYTE_ORDER == TU_LITTLE_ENDIAN)
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#define tu_htons(u16) (TU_BSWAP16(u16))
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#define tu_ntohs(u16) (TU_BSWAP16(u16))
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#define tu_htonl(u32) (TU_BSWAP32(u32))
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#define tu_ntohl(u32) (TU_BSWAP32(u32))
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#define tu_htole16(u16) (u16)
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#define tu_le16toh(u16) (u16)
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#define tu_htole32(u32) (u32)
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#define tu_le32toh(u32) (u32)
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#elif (TU_BYTE_ORDER == TU_BIG_ENDIAN)
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#define tu_htons(u16) (u16)
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#define tu_ntohs(u16) (u16)
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#define tu_htonl(u32) (u32)
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#define tu_ntohl(u32) (u32)
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#define tu_htole16(u16) (tu_bswap16(u16))
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#define tu_le16toh(u16) (tu_bswap16(u16))
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#define tu_htole32(u32) (tu_bswap32(u32))
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#define tu_le32toh(u32) (tu_bswap32(u32))
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#else
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#error Byte order is undefined
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#endif
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#endif /* _TUSB_COMPILER_H_ */
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