1 /* Declarations specific to this driver */ 2 #define NTBUF 2 3 #define TLEN 1 4 #define NRBUF 8 5 #define RLEN 3 6 #define BUFSIZE 1518 7 #define RAP 0xe 8 #define RDP 0xc 9 10 /* Control and status register 0 flags */ 11 12 #define ERR 0x8000 13 #define BABL 0x4000 14 #define CERR 0x2000 15 #define MISS 0x1000 16 #define MERR 0x0800 17 #define RINT 0x0400 18 #define TINT 0x0200 19 #define IDON 0x0100 20 #define INTR 0x0080 21 #define INEA 0x0040 22 #define RXON 0x0020 23 #define TXON 0x0010 24 #define TDMD 0x0008 25 #define STOP 0x0004 26 #define STRT 0x0002 27 #define INIT 0x0001 28 29 /* Coontrol and status register 3 flags */ 30 31 #define BSWP 0x0004 32 #define ACON 0x0002 33 #define BCON 0x0001 34 35 /* Initialisation block (must be on word boundary) */ 36 37 struct init_block { 38 u_short mode; /* Mode register */ 39 u_char padr[6]; /* Ethernet address */ 40 u_char ladrf[8]; /* Logical address filter (multicast) */ 41 u_short rdra; /* Low order pointer to receive ring */ 42 u_short rlen; /* High order pointer and no. rings */ 43 u_short tdra; /* Low order pointer to transmit ring */ 44 u_short tlen; /* High order pointer and no rings */ 45 }; 46 47 /* Mode settings */ 48 49 #define PROM 0x8000 /* Promiscuous */ 50 #define INTL 0x0040 /* Internal loopback */ 51 #define DRTY 0x0020 /* Disable retry */ 52 #define COLL 0x0010 /* Force collision */ 53 #define DTCR 0x0008 /* Disable transmit crc */ 54 #define LOOP 0x0004 /* Loop back */ 55 #define DTX 0x0002 /* Disable transmitter */ 56 #define DRX 0x0001 /* Disable receiver */ 57 58 /* Message descriptor structure */ 59 60 struct mds { 61 u_short addr; 62 u_short flags; 63 u_short bcnt; 64 u_short mcnt; 65 }; 66 67 /* Receive ring status flags */ 68 69 #define OWN 0x8000 /* Owner bit, 0=host, 1=Lance */ 70 #define MDERR 0x4000 /* Error */ 71 #define FRAM 0x2000 /* Framing error error */ 72 #define OFLO 0x1000 /* Silo overflow */ 73 #define CRC 0x0800 /* CRC error */ 74 #define RBUFF 0x0400 /* Buffer error */ 75 #define STP 0x0200 /* Start of packet */ 76 #define ENP 0x0100 /* End of packet */ 77 78 /* Transmit ring flags */ 79 80 #define MORE 0x1000 /* More than 1 retry */ 81 #define ONE 0x0800 /* One retry */ 82 #define DEF 0x0400 /* Deferred transmit */ 83 84 /* Transmit errors */ 85 86 #define TBUFF 0x8000 /* Buffer error */ 87 #define UFLO 0x4000 /* Silo underflow */ 88 #define LCOL 0x1000 /* Late collision */ 89 #define LCAR 0x0800 /* Loss of carrier */ 90 #define RTRY 0x0400 /* Tried 16 times */ 91