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Annotation of 43BSDReno/sys/vaxuba/tmscpreg.h, revision 1.1.1.1

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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