Return to lance.h CVS log

Up to [Net/2] / Net2 / arch / i386 / netboot

Annotation of Net2/arch/i386/netboot/lance.h, revision 1.1

1.1     ! root        1: /* netboot
        !             2:  *
        !             3:  * lance.h,v
        !             4:  * Revision 1.1  1993/07/08  16:04:01  brezak
        !             5:  * Diskless boot prom code from Jim McKim ([email protected])
        !             6:  *
        !             7:  * Revision 1.1.1.1  1993/05/28  11:41:08  mckim
        !             8:  * Initial version.
        !             9:  *
        !            10:  *
        !            11:  * source in this file came from
        !            12:  * the Mach ethernet boot written by Leendert van Doorn.
        !            13:  */
        !            14: 
        !            15: /* RAP functions as a select for RDP */
        !            16: #define RDP_CSR0       0
        !            17: #define RDP_CSR1       1
        !            18: #define RDP_CSR2       2
        !            19: #define RDP_CSR3       3
        !            20: 
        !            21: /* contents of csr0 */
        !            22: #define CSR_ERR                0x8000
        !            23: #define CSR_BABL       0x4000
        !            24: #define CSR_CERR       0x2000
        !            25: #define CSR_MISS       0x1000
        !            26: #define CSR_MERR       0x0800
        !            27: #define CSR_RINT       0x0400
        !            28: #define CSR_TINT       0x0200
        !            29: #define CSR_IDON       0x0100
        !            30: #define CSR_INTR       0x0080
        !            31: #define CSR_INEA       0x0040
        !            32: #define CSR_RXON       0x0020
        !            33: #define CSR_TXON       0x0010
        !            34: #define CSR_TDMD       0x0008
        !            35: #define CSR_STOP       0x0004
        !            36: #define CSR_STRT       0x0002
        !            37: #define CSR_INIT       0x0001
        !            38: 
        !            39: /* csr1 contains low 16 bits of address of Initialization Block */
        !            40: 
        !            41: /* csr2 contains in low byte high 8 bits of address of InitBlock */
        !            42: 
        !            43: /* contents of csr3 */
        !            44: #define CSR3_BSWP      0x04    /* byte swap (for big endian) */
        !            45: #define CSR3_ACON      0x02    /* ALE control */
        !            46: #define CSR3_BCON      0x01    /* byte control */
        !            47: 
        !            48: /*
        !            49:  * The initialization block
        !            50:  */
        !            51: typedef struct {
        !            52:     u_short    ib_mode;        /* modebits, see below */
        !            53:     char       ib_padr[6];     /* physical 48bit Ether-address */
        !            54:     u_short    ib_ladrf[4];    /* 64bit hashtable for "logical" addresses */
        !            55:     u_short    ib_rdralow;     /* low 16 bits of Receiver Descr. Ring addr */
        !            56:     u_char     ib_rdrahigh;    /* high 8 bits of Receiver Descr. Ring addr */
        !            57:     u_char     ib_rlen;        /* upper 3 bits are 2log Rec. Ring Length */
        !            58:     u_short    ib_tdralow;     /* low 16 bits of Transm. Descr. Ring addr */
        !            59:     u_char     ib_tdrahigh;    /* high 8 bits of Transm. Descr. Ring addr */
        !            60:     u_char     ib_tlen;        /* upper 3 bits are 2log Transm. Ring Length */
        !            61: } initblock_t;
        !            62: 
        !            63: /* bits in mode */
        !            64: #define IB_PROM                0x8000
        !            65: #define IB_INTL                0x0040
        !            66: #define IB_DRTY                0x0020
        !            67: #define IB_COLL                0x0010
        !            68: #define IB_DTCR                0x0008
        !            69: #define IB_LOOP                0x0004
        !            70: #define IB_DTX         0x0002
        !            71: #define IB_DRX         0x0001
        !            72: 
        !            73: /*
        !            74:  * A receive message descriptor entry
        !            75:  */
        !            76: typedef struct {
        !            77:     u_short    rmd_ladr;       /* low 16 bits of bufaddr */
        !            78:     char       rmd_hadr;       /* high 8 bits of bufaddr */
        !            79:     char       rmd_flags;      /* see below */
        !            80:     short      rmd_bcnt;       /* two's complement of buffer byte count */
        !            81:     u_short    rmd_mcnt;       /* message byte count */
        !            82: } rmde_t;
        !            83: 
        !            84: /* bits in flags */
        !            85: #define RMD_OWN                0x80
        !            86: #define RMD_ERR                0x40
        !            87: #define RMD_FRAM       0x20
        !            88: #define RMD_OFLO       0x10
        !            89: #define RMD_CRC                0x08
        !            90: #define RMD_BUFF       0x04
        !            91: #define RMD_STP                0x02
        !            92: #define RMD_ENP                0x01
        !            93: 
        !            94: /*
        !            95:  * A transmit message descriptor entry
        !            96:  */
        !            97: typedef struct {
        !            98:     u_short    tmd_ladr;       /* low 16 bits of bufaddr */
        !            99:     u_char     tmd_hadr;       /* high 8 bits of bufaddr */
        !           100:     u_char     tmd_flags;      /* see below */
        !           101:     short      tmd_bcnt;       /* two's complement of buffer byte count */
        !           102:     u_short    tmd_err;        /* more error bits + TDR */
        !           103: } tmde_t;
        !           104: 
        !           105: /* bits in flags */
        !           106: #define TMD_OWN                0x80
        !           107: #define TMD_ERR                0x40
        !           108: #define TMD_MORE       0x10
        !           109: #define TMD_ONE                0x08
        !           110: #define TMD_DEF                0x04
        !           111: #define TMD_STP                0x02
        !           112: #define TMD_ENP                0x01
        !           113: 
        !           114: /* bits in tmd_err */
        !           115: #define TMDE_BUFF      0x8000
        !           116: #define TMDE_UFLO      0x4000
        !           117: #define TMDE_LCOL      0x1000
        !           118: #define TMDE_LCAR      0x0800
        !           119: #define TMDE_RTRY      0x0400
        !           120: #define TMDE_TDR       0x003F  /* mask for TDR */
        !           121: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.