00001
00039 #ifndef ETH_AT91_H
00040 #define ETH_AT91_H
00041 
00042 #include <cpu/types.h>
00043
00044 #define EMAC_TX_BUFSIZ          1518  //!!! Don't change this
00045 #define EMAC_TX_BUFFERS         1     //!!! Don't change this
00046 #define EMAC_TX_DESCRIPTORS     EMAC_TX_BUFFERS
00047 
00048 #define EMAC_RX_BUFFERS         32    //!!! Don't change this
00049 #define EMAC_RX_BUFSIZ          128   //!!! Don't change this
00050 #define EMAC_RX_DESCRIPTORS EMAC_RX_BUFFERS
00051 
00052 // Flag to manage local tx buffer
00053 #define TXS_USED            0x80000000  //Used buffer.
00054 #define TXS_WRAP            0x40000000  //Last descriptor.
00055 #define TXS_ERROR           0x20000000  //Retry limit exceeded.
00056 #define TXS_UNDERRUN        0x10000000  //Transmit underrun.
00057 #define TXS_NO_BUFFER       0x08000000  //Buffer exhausted.
00058 #define TXS_NO_CRC          0x00010000  //CRC not appended.
00059 #define TXS_LAST_BUFF       0x00008000  //Last buffer of frame.
00060 #define TXS_LENGTH_FRAME    0x000007FF  // Length of frame including FCS.
00061 
00062 // Flag to manage local rx buffer
00063 #define RXBUF_OWNERSHIP     0x00000001
00064 #define RXBUF_WRAP          0x00000002
00065 
00066 #define BUF_ADDRMASK        0xFFFFFFFC
00067 
00068 #define RXS_BROADCAST_ADDR  0x80000000  // Broadcast address detected.
00069 #define RXS_MULTICAST_HASH  0x40000000  // Multicast hash match.
00070 #define RXS_UNICAST_HASH    0x20000000  // Unicast hash match.
00071 #define RXS_EXTERNAL_ADDR   0x10000000  // External address match.
00072 #define RXS_SA1_ADDR        0x04000000  // Specific address register 1 match.
00073 #define RXS_SA2_ADDR        0x02000000  // Specific address register 2 match.
00074 #define RXS_SA3_ADDR        0x01000000  // Specific address register 3 match.
00075 #define RXS_SA4_ADDR        0x00800000  // Specific address register 4 match.
00076 #define RXS_TYPE_ID         0x00400000  // Type ID match.
00077 #define RXS_VLAN_TAG        0x00200000  // VLAN tag detected.
00078 #define RXS_PRIORITY_TAG    0x00100000  // Priority tag detected.
00079 #define RXS_VLAN_PRIORITY   0x000E0000  // VLAN priority.
00080 #define RXS_CFI_IND         0x00010000  // Concatenation format indicator.
00081 #define RXS_EOF             0x00008000  // End of frame.
00082 #define RXS_SOF             0x00004000  // Start of frame.
00083 #define RXS_RBF_OFFSET      0x00003000  // Receive buffer offset mask.
00084 #define RXS_LENGTH_FRAME    0x000007FF  // Length of frame including FCS.
00085 
00086 #define EMAC_RSR_BITS   (BV(EMAC_BNA) | BV(EMAC_REC) | BV(EMAC_OVR))
00087 #define EMAC_TSR_BITS   (BV(EMAC_UBR) | BV(EMAC_COL) | BV(EMAC_RLES) | \
00088             BV(EMAC_BEX) | BV(EMAC_COMP) | BV(EMAC_UND))
00089 
00090 typedef struct BufDescriptor
00091 {
00092     volatile uint32_t addr;
00093     volatile uint32_t stat;
00094 } BufDescriptor;
00095
00096 #endif /* ETH_AT91_H */