begriffs open source - cmsis-freertos/blob - Demo/ColdFire_MCF51CN128

1 /*!

2 * \file eth.h

3 * \brief Definitinos for Ethernet Frames

4 * \version $Revision: 1.2 $

5 * \author Michael Norman

6 */

8 #ifndef _ETH_H

9 #define _ETH_H

11 /*******************************************************************/

13 /* Ethernet standard lengths in bytes*/

14 #define ETH_ADDR_LEN (6)

15 #define ETH_TYPE_LEN (2)

16 #define ETH_CRC_LEN (4)

17 #define ETH_MAX_DATA (1500)

18 #define ETH_MIN_DATA (46)

19 #define ETH_HDR_LEN (ETH_ADDR_LEN * 2 + ETH_TYPE_LEN)

21 /* Defined Ethernet Frame Types */

22 #define ETH_FRM_IP (0x0800)

23 #define ETH_FRM_ARP (0x0806)

24 #define ETH_FRM_RARP (0x8035)

25 #define ETH_FRM_TEST (0xA5A5)

27 /* Maximum and Minimum Ethernet Frame Sizes */

28 #define ETH_MAX_FRM (ETH_HDR_LEN + ETH_MAX_DATA + ETH_CRC_LEN)

29 #define ETH_MIN_FRM (ETH_HDR_LEN + ETH_MIN_DATA + ETH_CRC_LEN)

30 #define ETH_MTU (ETH_HDR_LEN + ETH_MAX_DATA)

32 /* Ethernet Addresses */

33 typedef unsigned char ETH_ADDR[ETH_ADDR_LEN];

35 /* 16-bit Ethernet Frame Type, ie. Protocol */

36 typedef unsigned short ETH_FRM_TYPE;

38 /* Ethernet Frame Header definition */

39 typedef struct

41 ETH_ADDR dest;

42 ETH_ADDR src;

43 ETH_FRM_TYPE type;

44 } ETH_HDR;

46 /* Ethernet Frame definition */

47 typedef struct

49 ETH_HDR head;

50 unsigned char* data;

51 } ETH_FRAME;

53 /*******************************************************************/

55 #endif /* _ETH_H */