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156 lines
3.9 KiB
C
156 lines
3.9 KiB
C
/**
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* \defgroup uiparch Architecture specific uIP functions
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* @{
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*
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* The functions in the architecture specific module implement the IP
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* check sum and 32-bit additions.
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*
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* The IP checksum calculation is the most computationally expensive
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* operation in the TCP/IP stack and it therefore pays off to
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* implement this in efficient assembler. The purpose of the uip-arch
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* module is to let the checksum functions to be implemented in
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* architecture specific assembler.
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*
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*/
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/**
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* \file
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* Declarations of architecture specific functions.
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* \author Adam Dunkels <adam@dunkels.com>
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*/
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/*
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* Copyright (c) 2001, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the lwBT stack.
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*
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*
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*/
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#ifndef __BT_ARCH_H__
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#define __BT_ARCH_H__
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#include "bt.h"
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#include "asm.h"
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#include "processor.h"
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#define MEM_ALIGNMENT 4
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#define MEM_ALIGN(mem) ((void*)(((u32_t)(mem)+MEM_ALIGNMENT-1)&~(u32_t)(MEM_ALIGNMENT-1)))
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#define MEM_ALIGN_SIZE(size) (((size)+MEM_ALIGNMENT-1)&~(u32_t)(MEM_ALIGNMENT-1))
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#if BYTE_ORDER == BIG_ENDIAN
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#ifndef htole16
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#define htole16 bswap16
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#endif
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#ifndef htole32
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#define htole32 bswap32
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#endif
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#ifndef htole64
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#define htole64 bswap64
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#endif
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#ifndef le16toh
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#define le16toh bswap16
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#endif
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#ifndef le32toh
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#define le32toh bswap32
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#endif
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#ifndef le642toh
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#define le64toh bswap64
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#endif
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#ifndef htons
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#define htons(x) (x)
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#endif
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#ifndef htonl
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#define htonl(x) (x)
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#endif
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#ifndef ntohl
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#define ntohl(x) (x)
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#endif
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#ifndef ntohs
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#define ntohs(x) (x)
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#endif
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#else
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#ifndef htole16
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#define htole16
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#endif
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#ifndef htole32
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#define htole32
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#endif
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#ifndef le16toh
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#define le16toh
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#endif
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#ifndef le32toh
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#define le32toh
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#endif
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#endif
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#if LIBC_MEMFUNCREPLACE
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static __inline__ void __memcpy(void *dest,const void *src,s32_t len)
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{
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u8_t *dest0 = (u8_t*)dest;
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u8_t *src0 = (u8_t*)src;
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while(len--) {
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*dest0++ = *src0++;
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}
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}
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static __inline__ void __memset(void *dest,s32_t c,s32_t len)
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{
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u8_t *dest0 = (u8_t*)dest;
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while(len--) {
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*dest0++ = (s8_t)c;
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}
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}
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#define MEMCPY __memcpy
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#define MEMSET __memset
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#else
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#define MEMCPY memcpy
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#define MEMSET memset
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#endif
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#if LOGGING == 1
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#include <stdio.h>
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#define LOG(fmt, ...) fprintf(stderr, "[BTLOG] " __FILE__ ":%i: " fmt "\n", __LINE__, ##__VA_ARGS__)
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#else
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#define LOG(fmt, ...)
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#endif /* LOGGING == 1 */
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#if ERRORING == 1
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#include <stdio.h>
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#define ERROR(fmt,...) fprintf(stderr, "[BTERR] " __FILE__ ":%i: " fmt "\n", __LINE__, ##__VA_ARGS__)
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#else
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#define ERROR(fmt, ...)
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#endif /* ERRORING == 1 */
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/** @} */
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#endif /* __UIP_ARCH_H__ */
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