1 /* $NetBSD: lance.h,v 1.1.1.1 1997/03/14 02:40:33 perry Exp $ */ 2 3 /* 4 * source in this file came from 5 * the Mach ethernet boot written by Leendert van Doorn. 6 */ 7 8 /* RAP functions as a select for RDP */ 9 #define RDP_CSR0 0 10 #define RDP_CSR1 1 11 #define RDP_CSR2 2 12 #define RDP_CSR3 3 13 14 /* contents of csr0 */ 15 #define CSR_ERR 0x8000 16 #define CSR_BABL 0x4000 17 #define CSR_CERR 0x2000 18 #define CSR_MISS 0x1000 19 #define CSR_MERR 0x0800 20 #define CSR_RINT 0x0400 21 #define CSR_TINT 0x0200 22 #define CSR_IDON 0x0100 23 #define CSR_INTR 0x0080 24 #define CSR_INEA 0x0040 25 #define CSR_RXON 0x0020 26 #define CSR_TXON 0x0010 27 #define CSR_TDMD 0x0008 28 #define CSR_STOP 0x0004 29 #define CSR_STRT 0x0002 30 #define CSR_INIT 0x0001 31 32 /* csr1 contains low 16 bits of address of Initialization Block */ 33 34 /* csr2 contains in low byte high 8 bits of address of InitBlock */ 35 36 /* contents of csr3 */ 37 #define CSR3_BSWP 0x04 /* byte swap (for big endian) */ 38 #define CSR3_ACON 0x02 /* ALE control */ 39 #define CSR3_BCON 0x01 /* byte control */ 40 41 /* 42 * The initialization block 43 */ 44 typedef struct { 45 u_short ib_mode; /* modebits, see below */ 46 char ib_padr[6]; /* physical 48bit Ether-address */ 47 u_short ib_ladrf[4]; /* 64bit hashtable for "logical" addresses */ 48 u_short ib_rdralow; /* low 16 bits of Receiver Descr. Ring addr */ 49 u_char ib_rdrahigh; /* high 8 bits of Receiver Descr. Ring addr */ 50 u_char ib_rlen; /* upper 3 bits are 2log Rec. Ring Length */ 51 u_short ib_tdralow; /* low 16 bits of Transm. Descr. Ring addr */ 52 u_char ib_tdrahigh; /* high 8 bits of Transm. Descr. Ring addr */ 53 u_char ib_tlen; /* upper 3 bits are 2log Transm. Ring Length */ 54 } initblock_t; 55 56 /* bits in mode */ 57 #define IB_PROM 0x8000 58 #define IB_INTL 0x0040 59 #define IB_DRTY 0x0020 60 #define IB_COLL 0x0010 61 #define IB_DTCR 0x0008 62 #define IB_LOOP 0x0004 63 #define IB_DTX 0x0002 64 #define IB_DRX 0x0001 65 66 /* 67 * A receive message descriptor entry 68 */ 69 typedef struct { 70 u_short rmd_ladr; /* low 16 bits of bufaddr */ 71 char rmd_hadr; /* high 8 bits of bufaddr */ 72 char rmd_flags; /* see below */ 73 short rmd_bcnt; /* two's complement of buffer byte count */ 74 u_short rmd_mcnt; /* message byte count */ 75 } rmde_t; 76 77 /* bits in flags */ 78 #define RMD_OWN 0x80 79 #define RMD_ERR 0x40 80 #define RMD_FRAM 0x20 81 #define RMD_OFLO 0x10 82 #define RMD_CRC 0x08 83 #define RMD_BUFF 0x04 84 #define RMD_STP 0x02 85 #define RMD_ENP 0x01 86 87 /* 88 * A transmit message descriptor entry 89 */ 90 typedef struct { 91 u_short tmd_ladr; /* low 16 bits of bufaddr */ 92 u_char tmd_hadr; /* high 8 bits of bufaddr */ 93 u_char tmd_flags; /* see below */ 94 short tmd_bcnt; /* two's complement of buffer byte count */ 95 u_short tmd_err; /* more error bits + TDR */ 96 } tmde_t; 97 98 /* bits in flags */ 99 #define TMD_OWN 0x80 100 #define TMD_ERR 0x40 101 #define TMD_MORE 0x10 102 #define TMD_ONE 0x08 103 #define TMD_DEF 0x04 104 #define TMD_STP 0x02 105 #define TMD_ENP 0x01 106 107 /* bits in tmd_err */ 108 #define TMDE_BUFF 0x8000 109 #define TMDE_UFLO 0x4000 110 #define TMDE_LCOL 0x1000 111 #define TMDE_LCAR 0x0800 112 #define TMDE_RTRY 0x0400 113 #define TMDE_TDR 0x003F /* mask for TDR */ 114 115