Diff: features/FEATURE_LWIP/lwip-interface/lwip-sys/arch/cc.h

Revision:

0:f782d9c66c49

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/features/FEATURE_LWIP/lwip-interface/lwip-sys/arch/cc.h	Fri Feb 02 05:42:23 2018 +0000
@@ -0,0 +1,107 @@
+/* 
+ * 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__ */