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Annotation of 43BSDReno/sys/vaxif/if_qereg.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This code is derived from software contributed to Berkeley by
        !             6:  * Digital Equipment Corp.
        !             7:  *
        !             8:  * Redistribution is only permitted until one year after the first shipment
        !             9:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !            10:  * binary forms are permitted provided that: (1) source distributions retain
        !            11:  * this entire copyright notice and comment, and (2) distributions including
        !            12:  * binaries display the following acknowledgement:  This product includes
        !            13:  * software developed by the University of California, Berkeley and its
        !            14:  * contributors'' in the documentation or other materials provided with the
        !            15:  * distribution and in all advertising materials mentioning features or use
        !            16:  * of this software.  Neither the name of the University nor the names of
        !            17:  * its contributors may be used to endorse or promote products derived from
        !            18:  * this software without specific prior written permission.
        !            19:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            20:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            21:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            22:  *
        !            23:  *     @(#)if_qereg.h  7.3 (Berkeley) 6/28/90
        !            24:  */
        !            25: 
        !            26: /* @(#)if_qereg.h      1.2 (ULTRIX) 1/3/85 */
        !            27:  
        !            28: /****************************************************************
        !            29:  *                                                             *
        !            30:  *        Licensed from Digital Equipment Corporation          *
        !            31:  *                       Copyright (c)                                 *
        !            32:  *               Digital Equipment Corporation                 *
        !            33:  *                   Maynard, Massachusetts                    *
        !            34:  *                         1985, 1986                          *
        !            35:  *                    All rights reserved.                     *
        !            36:  *                                                             *
        !            37:  *        The Information in this software is subject to change *
        !            38:  *   without notice and should not be construed as a commitment *
        !            39:  *   by  Digital  Equipment  Corporation.   Digital   makes  no *
        !            40:  *   representations about the suitability of this software for *
        !            41:  *   any purpose.  It is supplied "As Is" without expressed  or *
        !            42:  *   implied  warranty.                                        *
        !            43:  *                                                             *
        !            44:  *        If the Regents of the University of California or its *
        !            45:  *   licensees modify the software in a manner creating        *
        !            46:  *   diriviative copyright rights, appropriate copyright       *
        !            47:  *   legends may be placed on  the drivative work in addition   *
        !            48:  *   to that set forth above.                                  *
        !            49:  *                                                             *
        !            50:  ****************************************************************/
        !            51: /* ---------------------------------------------------------------------
        !            52:  * Modification History 
        !            53:  *
        !            54:  *  13 Feb. 84 -- rjl
        !            55:  *
        !            56:  *     Initial version of driver. derived from IL driver.
        !            57:  * 
        !            58:  * ---------------------------------------------------------------------
        !            59:  */
        !            60:  
        !            61: /*
        !            62:  * Digital Q-BUS to NI Adapter 
        !            63:  */
        !            64: struct qedevice {
        !            65:        u_short qe_sta_addr[2];         /* Station address (actually 6  */
        !            66:        u_short qe_rcvlist_lo;          /* Receive list lo address      */
        !            67:        u_short qe_rcvlist_hi;          /* Receive list hi address      */
        !            68:        u_short qe_xmtlist_lo;          /* Transmit list lo address     */
        !            69:        u_short qe_xmtlist_hi;          /* Transmit list hi address     */
        !            70:        u_short qe_vector;              /* Interrupt vector             */
        !            71:        u_short qe_csr;                 /* Command and Status Register  */
        !            72: };
        !            73:  
        !            74: /*
        !            75:  * Command and status bits (csr)
        !            76:  */
        !            77: #define QE_RCV_ENABLE  0x0001          /* Receiver enable              */
        !            78: #define QE_RESET       0x0002          /* Software reset               */
        !            79: #define QE_NEX_MEM_INT 0x0004          /* Non existant mem interrupt   */
        !            80: #define QE_LOAD_ROM    0x0008          /* Load boot/diag from rom      */
        !            81: #define QE_XL_INVALID  0x0010          /* Transmit list invalid        */
        !            82: #define QE_RL_INVALID  0x0020          /* Receive list invalid         */
        !            83: #define QE_INT_ENABLE  0x0040          /* Interrupt enable             */
        !            84: #define QE_XMIT_INT    0x0080          /* Transmit interrupt           */
        !            85: #define QE_ILOOP       0x0100          /* Internal loopback            */
        !            86: #define QE_ELOOP       0x0200          /* External loopback            */
        !            87: #define QE_STIM_ENABLE 0x0400          /* Sanity timer enable          */
        !            88: #define QE_POWERUP     0x1000          /* Tranceiver power on          */
        !            89: #define QE_CARRIER     0x2000          /* Carrier detect               */
        !            90: #define QE_RCV_INT     0x8000          /* Receiver interrupt           */
        !            91:  
        !            92: /*
        !            93:  * Transmit and receive ring discriptor ---------------------------
        !            94:  *
        !            95:  * The QNA uses the flag, status1 and the valid bit as a handshake/semiphore
        !            96:  * mechinism. 
        !            97:  * 
        !            98:  * The flag word is written on ( bits 15,15 set to 1 ) when it reads the
        !            99:  * descriptor. If the valid bit is set it considers the address to be valid.
        !           100:  * When it uses the buffer pointed to by the valid address it sets status word
        !           101:  * one.
        !           102:  */
        !           103: struct qe_ring {
        !           104:        u_short qe_flag;                /* Buffer utilization flags     */
        !           105:        u_short qe_addr_hi:6,           /* Hi order bits of buffer addr */
        !           106:              qe_odd_begin:1,           /* Odd byte begin and end (xmit)*/
        !           107:              qe_odd_end:1,
        !           108:              qe_fill1:4,
        !           109:              qe_setup:1,               /* Setup packet                 */
        !           110:              qe_eomsg:1,               /* End of message flag          */
        !           111:              qe_chain:1,               /* Chain address instead of buf */
        !           112:              qe_valid:1;               /* Address field is valid       */
        !           113:        u_short qe_addr_lo;             /* Low order bits of address    */
        !           114:        short qe_buf_len;               /* Negative buffer length       */
        !           115:        u_short qe_status1;             /* Status word one              */
        !           116:        u_short qe_status2;             /* Status word two              */
        !           117: };
        !           118:  
        !           119: /*
        !           120:  * Status word definations (receive)
        !           121:  *     word1
        !           122:  */
        !           123: #define QE_OVF                 0x0001  /* Receiver overflow            */
        !           124: #define QE_CRCERR              0x0002  /* CRC error                    */
        !           125: #define QE_FRAME               0x0004  /* Framing alignment error      */
        !           126: #define QE_SHORT               0x0008  /* Packet size < 10 bytes       */
        !           127: #define QE_RBL_HI              0x0700  /* Hi bits of receive len       */
        !           128: #define QE_RUNT                        0x0800  /* Runt packet                  */
        !           129: #define QE_DISCARD             0x1000  /* Discard the packet           */
        !           130: #define QE_ESETUP              0x2000  /* Looped back setup or eloop   */
        !           131: #define QE_ERROR               0x4000  /* Receiver error               */
        !           132: #define QE_LASTNOT             0x8000  /* Not the last in the packet   */
        !           133: /*     word2                                                           */
        !           134: #define QE_RBL_LO              0x00ff  /* Low bits of receive len      */
        !           135:  
        !           136: /*
        !           137:  * Status word definations (transmit)
        !           138:  *     word1
        !           139:  */
        !           140: #define QE_CCNT                        0x00f0  /* Collision count this packet  */
        !           141: #define QE_FAIL                        0x0100  /* Heart beat check failure     */
        !           142: #define QE_ABORT               0x0200  /* Transmission abort           */
        !           143: #define QE_STE16               0x0400  /* Sanity timer default on      */
        !           144: #define QE_NOCAR               0x0800  /* No carrier                   */
        !           145: #define QE_LOSS                        0x1000  /* Loss of carrier while xmit   */
        !           146: /*     word2                                                           */
        !           147: #define QE_TDR                 0x3fff  /* Time domain reflectometry    */
        !           148:  
        !           149: /*
        !           150:  * General constant definations
        !           151:  */
        !           152: #define QEALLOC                0       /* Allocate an mbuf             */
        !           153: #define QENOALLOC              1       /* No mbuf allocation           */
        !           154: #define QEDEALLOC              2       /* Release an mbuf chain        */
        !           155:  
        !           156: #define QE_NOTYET              0x8000  /* Descriptor not in use yet    */
        !           157: #define QE_INUSE               0x4000  /* Descriptor being used by QNA */
        !           158: #define QE_MASK                        0xc000  /* Lastnot/error/used mask      */

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