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Annotation of 43BSD/sys/vaxuba/tmscpreg.h, revision 1.1

1.1     ! root        1: /* @(#)tmscpreg.h      7.1 (Berkeley) 6/5/86 */
        !             2: 
        !             3: /*     @(#)tmscpreg.h  1.1     11/2/84 84/09/25        */
        !             4: 
        !             5: /****************************************************************
        !             6:  *                                                             *
        !             7:  *        Licensed from Digital Equipment Corporation          *
        !             8:  *                       Copyright (c)                                 *
        !             9:  *               Digital Equipment Corporation                 *
        !            10:  *                   Maynard, Massachusetts                    *
        !            11:  *                         1985, 1986                          *
        !            12:  *                    All rights reserved.                     *
        !            13:  *                                                             *
        !            14:  *        The Information in this software is subject to change *
        !            15:  *   without notice and should not be construed as a commitment *
        !            16:  *   by  Digital  Equipment  Corporation.   Digital   makes  no *
        !            17:  *   representations about the suitability of this software for *
        !            18:  *   any purpose.  It is supplied "As Is" without expressed  or *
        !            19:  *   implied  warranty.                                        *
        !            20:  *                                                             *
        !            21:  *        If the Regents of the University of California or its *
        !            22:  *   licensees modify the software in a manner creating        *
        !            23:  *   diriviative copyright rights, appropriate copyright       *
        !            24:  *   legends may be placed on  the drivative work in addition   *
        !            25:  *   to that set forth above.                                  *
        !            26:  *                                                             *
        !            27:  ****************************************************************/
        !            28: /*
        !            29:  * TMSCP registers and structures
        !            30:  */
        !            31:  
        !            32: struct tmscpdevice {
        !            33:        short   tmscpip;        /* initialization and polling */
        !            34:        short   tmscpsa;        /* status and address */
        !            35: };
        !            36:  
        !            37: #define        TMSCP_ERR               0100000 /* error bit */
        !            38: #define        TMSCP_STEP4     0040000 /* step 4 has started */
        !            39: #define        TMSCP_STEP3     0020000 /* step 3 has started */
        !            40: #define        TMSCP_STEP2     0010000 /* step 2 has started */
        !            41: #define        TMSCP_STEP1     0004000 /* step 1 has started */
        !            42: #define        TMSCP_NV                0002000 /* no host settable interrupt vector */
        !            43: #define        TMSCP_QB                0001000 /* controller supports Q22 bus */
        !            44: #define        TMSCP_DI                0000400 /* controller implements diagnostics */
        !            45: #define        TMSCP_OD                0000200 /* port allows odd host addr's in the buffer descriptor */
        !            46: #define        TMSCP_IE                0000200 /* interrupt enable */
        !            47: #define        TMSCP_MP                0000100 /* port supports address mapping */
        !            48: #define        TMSCP_LF                0000002 /* host requests last fail response packet */
        !            49: #define        TMSCP_PI                0000001 /* host requests adapter purge interrupts */
        !            50: #define        TMSCP_GO                0000001 /* start operation, after init */
        !            51:  
        !            52:  
        !            53: /*
        !            54:  * TMSCP Communications Area
        !            55:  */
        !            56:  
        !            57: struct tmscpca {
        !            58:        short   ca_xxx1;        /* unused */
        !            59:        char    ca_xxx2;        /* unused */
        !            60:        char    ca_bdp;         /* BDP to purge */
        !            61:        short   ca_cmdint;      /* command queue transition interrupt flag */
        !            62:        short   ca_rspint;      /* response queue transition interrupt flag */
        !            63:        long    ca_rspdsc[NRSP];/* response descriptors */
        !            64:        long    ca_cmddsc[NCMD];/* command descriptors */
        !            65: };
        !            66:  
        !            67: #define        ca_ringbase     ca_rspdsc[0]
        !            68:  
        !            69: #define        TMSCP_OWN       0x80000000      /* port owns this descriptor (else host
        !            70:  owns it) */
        !            71: #define        TMSCP_INT       0x40000000      /* allow interrupt on ring transition */
        !            72:  
        !            73: #define        TMSCP_MAP       0x80000000      /* modifier for mapped buffer descriptors */
        !            74:  
        !            75: /*
        !            76:  * TMSCP packet info (same as MSCP)
        !            77:  */
        !            78: struct mscp_header {
        !            79:        short   tmscp_msglen;   /* length of MSCP packet */
        !            80:        char    tmscp_credits;  /* low 4 bits: credits, high 4 bits: msgtype */
        !            81:        char    tmscp_vcid;     /* virtual circuit id (connection id) */
        !            82: };

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