type.h

来自「ARM2410+DM9000的驱动与寄存器配置代码」· C头文件 代码 · 共 45 行

#ifndef __ETH_TYPE_H__
#define __ETH_TYPE_H__

#include "consol.h"

#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN  3412
#endif /* LITTLE_ENDIAN */
#ifndef BIG_ENDIAN
#define BIG_ENDIAN     1234
#endif /* BIGE_ENDIAN */

#ifndef BYTE_ORDER
#define BYTE_ORDER     LITTLE_ENDIAN
#endif /* BYTE_ORDER */


typedef unsigned char u8_t;
typedef unsigned short u16_t;
typedef unsigned long u32_t;

#ifndef NULL
	#define NULL 0
#endif

#ifndef HTONS
	#if BYTE_ORDER == BIG_ENDIAN
		#define HTONS(n) (n)
	#else
		#define HTONS(n) ((((u16_t)((n) & 0xff)) << 8) | (((n) & 0xff00) >> 8))
	#endif
#endif /* HTONS */

#ifndef HTONL
	#if BYTE_ORDER == BIG_ENDIAN
		#define HTONL(n) (n)
	#else
		#define HTONL(n) ((((u32_t)((n) & 0xff)) << 24) | ((u32_t)((n) & 0xff00) << 8) | ((u32_t)((n)&0xff0000)>>8) | ((u32_t)((n)&0xff000000)>>24))
	#endif
#endif /* HTONL */


#define dbglog(a) CONSOL_Printf a

#endif //__ETH_TYPE_H__