Adam Green / EthernetInterface

Deprecated fork of old network stack source from github. Please use official library instead: https://mbed.org/users/mbed_official/code/EthernetInterface/

lwip-sys/arch/cc.h@1:eadc868c2acf, 2013-10-26 (annotated)

Committer:
AdamGreen
Date:
Sat Oct 26 08:51:36 2013 +0000
Revision:
1:eadc868c2acf
Parent:
0:3b00827bb0b7 
Fix TCP checksum bug and stranded large TCP segments.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AdamGreen 0:3b00827bb0b7 1 /*
AdamGreen 0:3b00827bb0b7 2 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
AdamGreen 0:3b00827bb0b7 3 * All rights reserved.
AdamGreen 0:3b00827bb0b7 4 *
AdamGreen 0:3b00827bb0b7 5 * Redistribution and use in source and binary forms, with or without modification,
AdamGreen 0:3b00827bb0b7 6 * are permitted provided that the following conditions are met:
AdamGreen 0:3b00827bb0b7 7 *
AdamGreen 0:3b00827bb0b7 8 * 1. Redistributions of source code must retain the above copyright notice,
AdamGreen 0:3b00827bb0b7 9 * this list of conditions and the following disclaimer.
AdamGreen 0:3b00827bb0b7 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
AdamGreen 0:3b00827bb0b7 11 * this list of conditions and the following disclaimer in the documentation
AdamGreen 0:3b00827bb0b7 12 * and/or other materials provided with the distribution.
AdamGreen 0:3b00827bb0b7 13 * 3. The name of the author may not be used to endorse or promote products
AdamGreen 0:3b00827bb0b7 14 * derived from this software without specific prior written permission.
AdamGreen 0:3b00827bb0b7 15 *
AdamGreen 0:3b00827bb0b7 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
AdamGreen 0:3b00827bb0b7 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
AdamGreen 0:3b00827bb0b7 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
AdamGreen 0:3b00827bb0b7 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
AdamGreen 0:3b00827bb0b7 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
AdamGreen 0:3b00827bb0b7 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
AdamGreen 0:3b00827bb0b7 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
AdamGreen 0:3b00827bb0b7 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
AdamGreen 0:3b00827bb0b7 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
AdamGreen 0:3b00827bb0b7 25 * OF SUCH DAMAGE.
AdamGreen 0:3b00827bb0b7 26 *
AdamGreen 0:3b00827bb0b7 27 * This file is part of the lwIP TCP/IP stack.
AdamGreen 0:3b00827bb0b7 28 *
AdamGreen 0:3b00827bb0b7 29 * Author: Adam Dunkels <adam@sics.se>
AdamGreen 0:3b00827bb0b7 30 *
AdamGreen 0:3b00827bb0b7 31 */
AdamGreen 0:3b00827bb0b7 32 #ifndef __CC_H__
AdamGreen 0:3b00827bb0b7 33 #define __CC_H__
AdamGreen 0:3b00827bb0b7 34
AdamGreen 0:3b00827bb0b7 35 #include <stdint.h>
AdamGreen 0:3b00827bb0b7 36
AdamGreen 0:3b00827bb0b7 37 /* Types based on stdint.h */
AdamGreen 0:3b00827bb0b7 38 typedef uint8_t u8_t;
AdamGreen 0:3b00827bb0b7 39 typedef int8_t s8_t;
AdamGreen 0:3b00827bb0b7 40 typedef uint16_t u16_t;
AdamGreen 0:3b00827bb0b7 41 typedef int16_t s16_t;
AdamGreen 0:3b00827bb0b7 42 typedef uint32_t u32_t;
AdamGreen 0:3b00827bb0b7 43 typedef int32_t s32_t;
AdamGreen 0:3b00827bb0b7 44 typedef uintptr_t mem_ptr_t;
AdamGreen 0:3b00827bb0b7 45
AdamGreen 0:3b00827bb0b7 46 /* Define (sn)printf formatters for these lwIP types */
AdamGreen 0:3b00827bb0b7 47 #define U16_F "hu"
AdamGreen 0:3b00827bb0b7 48 #define S16_F "hd"
AdamGreen 0:3b00827bb0b7 49 #define X16_F "hx"
AdamGreen 0:3b00827bb0b7 50 #define U32_F "lu"
AdamGreen 0:3b00827bb0b7 51 #define S32_F "ld"
AdamGreen 0:3b00827bb0b7 52 #define X32_F "lx"
AdamGreen 0:3b00827bb0b7 53 #define SZT_F "uz"
AdamGreen 0:3b00827bb0b7 54
AdamGreen 0:3b00827bb0b7 55 /* ARM/LPC17xx is little endian only */
AdamGreen 0:3b00827bb0b7 56 #define BYTE_ORDER LITTLE_ENDIAN
AdamGreen 0:3b00827bb0b7 57
AdamGreen 0:3b00827bb0b7 58 /* Use LWIP error codes */
AdamGreen 0:3b00827bb0b7 59 #define LWIP_PROVIDE_ERRNO
AdamGreen 0:3b00827bb0b7 60
AdamGreen 0:3b00827bb0b7 61 #if defined(__arm__) && defined(__ARMCC_VERSION)
AdamGreen 0:3b00827bb0b7 62 /* Keil uVision4 tools */
AdamGreen 0:3b00827bb0b7 63 #define PACK_STRUCT_BEGIN __packed
AdamGreen 0:3b00827bb0b7 64 #define PACK_STRUCT_STRUCT
AdamGreen 0:3b00827bb0b7 65 #define PACK_STRUCT_END
AdamGreen 0:3b00827bb0b7 66 #define PACK_STRUCT_FIELD(fld) fld
AdamGreen 0:3b00827bb0b7 67 #define ALIGNED(n) __align(n)
AdamGreen 0:3b00827bb0b7 68 #elif defined (__IAR_SYSTEMS_ICC__)
AdamGreen 0:3b00827bb0b7 69 /* IAR Embedded Workbench tools */
AdamGreen 0:3b00827bb0b7 70 #define PACK_STRUCT_BEGIN __packed
AdamGreen 0:3b00827bb0b7 71 #define PACK_STRUCT_STRUCT
AdamGreen 0:3b00827bb0b7 72 #define PACK_STRUCT_END
AdamGreen 0:3b00827bb0b7 73 #define PACK_STRUCT_FIELD(fld) fld
AdamGreen 0:3b00827bb0b7 74 // #define PACK_STRUCT_USE_INCLUDES
AdamGreen 0:3b00827bb0b7 75 #error NEEDS ALIGNED // FIXME TBD
AdamGreen 0:3b00827bb0b7 76 #else
AdamGreen 0:3b00827bb0b7 77 /* GCC tools (CodeSourcery) */
AdamGreen 0:3b00827bb0b7 78 #define PACK_STRUCT_BEGIN
AdamGreen 0:3b00827bb0b7 79 #define PACK_STRUCT_STRUCT __attribute__ ((__packed__))
AdamGreen 0:3b00827bb0b7 80 #define PACK_STRUCT_END
AdamGreen 0:3b00827bb0b7 81 #define PACK_STRUCT_FIELD(fld) fld
AdamGreen 0:3b00827bb0b7 82 #define ALIGNED(n) __attribute__((aligned (n)))
AdamGreen 0:3b00827bb0b7 83 #endif
AdamGreen 0:3b00827bb0b7 84
AdamGreen 0:3b00827bb0b7 85 /* Provide Thumb-2 routines for GCC to improve performance */
AdamGreen 0:3b00827bb0b7 86 #if defined(TOOLCHAIN_GCC) && defined(__thumb2__)
AdamGreen 0:3b00827bb0b7 87 #define MEMCPY(dst,src,len) thumb2_memcpy(dst,src,len)
AdamGreen 0:3b00827bb0b7 88 #define LWIP_CHKSUM thumb2_checksum
AdamGreen 0:3b00827bb0b7 89 /* Set algorithm to 0 so that unused lwip_standard_chksum function
AdamGreen 0:3b00827bb0b7 90 doesn't generate compiler warning */
AdamGreen 0:3b00827bb0b7 91 #define LWIP_CHKSUM_ALGORITHM 0
AdamGreen 0:3b00827bb0b7 92
AdamGreen 0:3b00827bb0b7 93 void* thumb2_memcpy(void* pDest, const void* pSource, size_t length);
AdamGreen 0:3b00827bb0b7 94 u16_t thumb2_checksum(void* pData, int length);
AdamGreen 0:3b00827bb0b7 95 #else
AdamGreen 0:3b00827bb0b7 96 /* Used with IP headers only */
AdamGreen 0:3b00827bb0b7 97 #define LWIP_CHKSUM_ALGORITHM 1
AdamGreen 0:3b00827bb0b7 98 #endif
AdamGreen 0:3b00827bb0b7 99
AdamGreen 0:3b00827bb0b7 100
AdamGreen 0:3b00827bb0b7 101 #ifdef LWIP_DEBUG
AdamGreen 0:3b00827bb0b7 102
AdamGreen 0:3b00827bb0b7 103 #include "stdio.h"
AdamGreen 0:3b00827bb0b7 104
AdamGreen 0:3b00827bb0b7 105 void assert_printf(char *msg, int line, char *file);
AdamGreen 0:3b00827bb0b7 106
AdamGreen 0:3b00827bb0b7 107 /* Plaform specific diagnostic output */
AdamGreen 0:3b00827bb0b7 108 #define LWIP_PLATFORM_DIAG(vars) printf vars
AdamGreen 0:3b00827bb0b7 109 #define LWIP_PLATFORM_ASSERT(flag) { assert_printf((flag), __LINE__, __FILE__); }
AdamGreen 0:3b00827bb0b7 110 #else
AdamGreen 0:3b00827bb0b7 111 #define LWIP_PLATFORM_DIAG(msg) { ; }
AdamGreen 0:3b00827bb0b7 112 #define LWIP_PLATFORM_ASSERT(flag) { ; }
AdamGreen 0:3b00827bb0b7 113 #endif
AdamGreen 0:3b00827bb0b7 114
AdamGreen 0:3b00827bb0b7 115 #include "cmsis.h"
AdamGreen 0:3b00827bb0b7 116 #define LWIP_PLATFORM_HTONS(x) __REV16(x)
AdamGreen 0:3b00827bb0b7 117 #define LWIP_PLATFORM_HTONL(x) __REV(x)
AdamGreen 0:3b00827bb0b7 118
AdamGreen 0:3b00827bb0b7 119 #endif /* __CC_H__ */