/* 
 * Copyright (c) 2001-2003 Swedish Institute of Computer Science. 
 * All rights reserved.  
 *  
 * Redistribution and use in source and binary forms, with or without modification,  
 * are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 * 3. The name of the author may not be used to endorse or promote products 
 *    derived from this software without specific prior written permission.  
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED  
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF  
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT  
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS  
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN  
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING  
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY  
 * OF SUCH DAMAGE. 
 * 
 * This file is part of the lwIP TCP/IP stack. 
 *  
 * Author: Adam Dunkels <adam@sics.se> 
 * 
 */ 
#ifndef __CC_H__ 
#define __CC_H__ 

#include <stdint.h>
#include <stddef.h> /* for size_t */

/* ARM/LPC17xx is little endian only */
#if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN)
#ifdef BYTE_ORDER
#undef BYTE_ORDER
#endif
#define BYTE_ORDER LITTLE_ENDIAN
#endif

/* Use LWIP error codes */
#define LWIP_PROVIDE_ERRNO

#if defined(__arm__) && defined(__ARMCC_VERSION) 
    /* Keil uVision4 tools */
    #define PACK_STRUCT_BEGIN __packed
    #define PACK_STRUCT_STRUCT
    #define PACK_STRUCT_END
    #define PACK_STRUCT_FIELD(fld) fld
    #define ALIGNED(n)  __align(n)
#elif defined (__IAR_SYSTEMS_ICC__) 
    /* IAR Embedded Workbench tools */
    #define PACK_STRUCT_BEGIN __packed
    #define PACK_STRUCT_STRUCT
    #define PACK_STRUCT_END
    #define PACK_STRUCT_FIELD(fld) fld
    #define IAR_STR(a) #a
    #define ALIGNED(n) _Pragma(IAR_STR(data_alignment= ## n ##))
#else 
    /* GCC tools (CodeSourcery) */
    #define PACK_STRUCT_BEGIN
    #define PACK_STRUCT_STRUCT __attribute__ ((__packed__))
    #define PACK_STRUCT_END
    #define PACK_STRUCT_FIELD(fld) fld
    #define ALIGNED(n)  __attribute__((aligned (n)))
#endif 

/* Provide Thumb-2 routines for GCC to improve performance */
#if defined(TOOLCHAIN_GCC) && defined(__thumb2__)
    #define MEMCPY(dst,src,len)     thumb2_memcpy(dst,src,len)
    #define LWIP_CHKSUM             thumb2_checksum
    /* Set algorithm to 0 so that unused lwip_standard_chksum function
       doesn't generate compiler warning */
    #define LWIP_CHKSUM_ALGORITHM   0

    void* thumb2_memcpy(void* pDest, const void* pSource, size_t length);
    uint16_t thumb2_checksum(const void* pData, int length);
#else
    /* Used with IP headers only */
    #define LWIP_CHKSUM_ALGORITHM   1
#endif


#ifdef LWIP_DEBUG

#include "stdio.h"

void assert_printf(char *msg, int line, char *file);

/* Plaform specific diagnostic output */
#define LWIP_PLATFORM_DIAG(vars) printf vars
#define LWIP_PLATFORM_ASSERT(flag) { assert_printf((flag), __LINE__, __FILE__); }
#else
#define LWIP_PLATFORM_DIAG(msg) { ; }
#define LWIP_PLATFORM_ASSERT(flag) { ; }
#endif 

#include "cmsis.h"
#define LWIP_PLATFORM_HTONS(x)      __REV16(x)
#define LWIP_PLATFORM_HTONL(x)      __REV(x)

#endif /* __CC_H__ */ 
