00001
00043 #ifndef DRV_ETH_H
00044 #define DRV_ETH_H
00045 
00046 #include "hw/hw_eth.h"
00047 #include "cfg/cfg_eth.h"
00048
00049 #include <drv/phy.h>
00050
00051 #include <cpu/types.h>
00052
00053
00054 #define ETH_ADDR_LEN    6
00055 #define ETH_HEAD_LEN    14
00056 #define ETH_DATA_LEN    1500
00057 #define ETH_FRAME_LEN   (ETH_HEAD_LEN + ETH_DATA_LEN)
00058 #define ETH_TYPE_IP     0x0800
00059 
00060 typedef union Ethernet
00061 {
00062     struct
00063     {
00064         uint8_t  dst[ETH_ADDR_LEN];
00065         uint8_t  src[ETH_ADDR_LEN];
00066         uint16_t type;
00067         uint8_t data[0];
00068     };
00069     uint8_t raw[ETH_FRAME_LEN];
00070 } PACKED Ethernet;
00071
00075 INLINE int eth_addrIsZero(const uint8_t *addr)
00076 {
00077     return !(addr[0] | addr[1] | addr[2] |
00078          addr[3] | addr[4] | addr[5]);
00079 }
00080
00084 INLINE int eth_addrIsMcast(const uint8_t *addr)
00085 {
00086     return (0x01 & addr[0]);
00087 }
00088
00092 INLINE int eth_addrIsLocal(const uint8_t *addr)
00093 {
00094     return (0x02 & addr[0]);
00095 }
00096
00100 INLINE bool eth_addrIsBcast(const uint8_t *addr)
00101 {
00102     return (addr[0] & addr[1] & addr[2] &
00103         addr[3] & addr[4] & addr[5]) == 0xff;
00104 }
00105
00110 INLINE bool eth_addrIsValid(const uint8_t *addr)
00111 {
00112     return !eth_addrIsMcast(addr) && !eth_addrIsZero(addr);
00113 }
00114
00118 INLINE bool eth_addrCmp(const uint8_t *addr1, const uint8_t *addr2)
00119 {
00120     return !!((addr1[0] ^ addr2[0]) |
00121             (addr1[1] ^ addr2[1]) |
00122             (addr1[2] ^ addr2[2]) |
00123             (addr1[3] ^ addr2[3]) |
00124             (addr1[4] ^ addr2[4]) |
00125             (addr1[5] ^ addr2[5]));
00126 }
00127
00128 ssize_t eth_putFrame(const uint8_t *buf, size_t len);
00129 void eth_sendFrame(void);
00130
00131 size_t eth_getFrameLen(void);
00132 ssize_t eth_getFrame(uint8_t *buf, size_t len);
00133
00134 ssize_t eth_send(const uint8_t *buf, size_t len);
00135 ssize_t eth_recv(uint8_t *buf, size_t len);
00136
00137 int eth_init(void);
00138
00139 #endif /* DRV_ETH_H */