sys/arch/i386/stand/lib/netif/lance.h

   1 /*      $NetBSD: lance.h,v 1.2 2008/12/14 18:46:33 christos 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 */