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Annotation of Net2/arch/tahoe/vba/vxreg.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:  * Computer Consoles Inc.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *     This product includes software developed by the University of
        !            19:  *     California, Berkeley and its contributors.
        !            20:  * 4. Neither the name of the University nor the names of its contributors
        !            21:  *    may be used to endorse or promote products derived from this software
        !            22:  *    without specific prior written permission.
        !            23:  *
        !            24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            34:  * SUCH DAMAGE.
        !            35:  *
        !            36:  *     @(#)vxreg.h     7.4 (Berkeley) 6/28/90
        !            37:  */
        !            38: 
        !            39: /*
        !            40:  * Vioc hardware interface structure.
        !            41:  */
        !            42: struct vxdevice {
        !            43:        char    v_vioc;         /*  0 type of interrupt + vioc busy flag */
        !            44:        char    v_hdwre;        /*  1 trap, reset, or hard interrupt */
        !            45:        char    v_vcbsy;        /*  2 command busy (set by host) */
        !            46:        char    v_vcid;         /*  3 command identifier */
        !            47:        short   v_vcp[2];       /*  4 command pointer (sent by host) */
        !            48:        short   v_unused;       /*  8 unused */
        !            49:        short   v_rspoff;       /*  a offset into vblock for response buf */
        !            50:        char    v_ustat;        /*  c status */
        !            51:        char    v_uqual;        /*  d interrupt qualifier */
        !            52:        char    v_usdata[0x3E]; /*  e unsolicited interrupt data */
        !            53:        short   v_maxxmt;       /* 4C max xmit block size */
        !            54:        short   v_maxsilo;      /* 4E max silo size */
        !            55:        char    v_ident;        /* 50 identifies type of vioc */
        !            56:        char    v_fault;        /* 51 denotes fault or ready after reset */
        !            57:        short   v_dcd;          /* 52 bit mask for carr detect by port */
        !            58:        short   v_cts;          /* 54 bit mask for cts by port */
        !            59:        short   v_dsr;          /* 56 bit mask for dsr by port */
        !            60:        short   v_secrec;       /* 58 bit mask for secondary receive */
        !            61:        short   v_badport;      /* 5a bit mask of failed ports */
        !            62:        char    v_portyp[16];   /* 5c type of each port */
        !            63: };
        !            64: 
        !            65: /* control bits for v_vioc and v_hdwre */
        !            66: #define        V_RESET 0x1             /* cause a vioc reset */
        !            67: #define        V_TRP   0x2             /* cause a vioc trap */
        !            68: #define        V_INTR  0x4             /* cause a vioc interrupt */
        !            69: #define        V_ERR   0x80            /* generic error flag */
        !            70: #define        V_BSY   0x80            /* generic busy flag */
        !            71: #define        V_UNBSY 0x80            /* not busy for unsolicited interrupt */
        !            72: 
        !            73: /* command identifier codes */
        !            74: #define        VXC_LIDENT      0x0000          /* load ident, set int vectors */
        !            75: #define        VXC_XMITDTA     0x0200          /* transmit */
        !            76: #define        VXC_XMITIMM     0x0400          /* xmit immediate */
        !            77: #define        VXC_FDTATOX     0x0300          /* flush data */
        !            78: #define        VXC_LPARAX      0x0600          /* load params */
        !            79: #define        VXC_SNDBRKX     0x0C00          /* send break to port */
        !            80: #define        VXC_MDMCTL      0x1000          /* auto modem control */
        !            81: /* bisync specific command identifiers */
        !            82: #define        VXC_LPARAX1     0x060a
        !            83: #define        VXC_MDMCTL1     0x1004
        !            84: #define        VXC_HUNTMD1     0x0804
        !            85: 
        !            86: /* vioc types returned during config */
        !            87: #define        VXT_VIOCBOP     0x05            /* vioc-bop */
        !            88: #define        VXT_PVIOCX      0x0A            /* old connector panel vioc-x */
        !            89: #define        VXT_VIOCX       0x0B            /* new connector panel vioc-x */
        !            90: #define        VXT_VIOCB       0x0C            /* vioc-bisync */
        !            91: #define        VXT_NEW         0x10            /* new type bit (or'd in) */
        !            92: 
        !            93: #define        VX_BISYNC       0x1             /* bisync flag indicator for bscport */
        !            94: 
        !            95: /* connector panel types (per port) */
        !            96: #define        VXT_NONE        0               /* no connector panel */
        !            97: #define        VXT_8PORT       1               /* 8 port RS-232C */
        !            98: #define        VXT_RS422       2               /* 8 port RS-422 (nonexistent) */
        !            99: #define        VXT_4PORT       3               /* 4 port RS-232 (with DSR/RING) */
        !           100: #define        VXT_PARALLEL    4               /* 4 port panel parallel port */
        !           101: 
        !           102: /* v_fault status values */
        !           103: #define        VXF_READY       0x55            /* no err in vioc self-initializaton */
        !           104: 
        !           105: /* line parameters, set with VXC_LPARAX */
        !           106: #define        BITS5           0x00            /* 5 bits per character */
        !           107: #define        BITS6           0x80            /* 6 bits per character */
        !           108: #define        BITS7           0x40            /* 7 bits per character */
        !           109: #define        BITS8           0xc0            /* 8 bits per character */
        !           110: 
        !           111: #define        VNOPARITY       0x00            /* no parity bit */
        !           112: #define        VODDP           0x01            /* odd parity bit */
        !           113: #define        VEVENP          0x03            /* even parity bit */
        !           114: 
        !           115: #define        VSTOP1          0x04            /* 1 stop bit */
        !           116: #define        VSTOP2          0x0c            /* 2 stop bit */
        !           117: 
        !           118: #define        V19200          0x13            /* 19.2 kbaud */
        !           119: 
        !           120: /* modem control flags */
        !           121: #define        VMOD_ON         1
        !           122: #define        VMOD_OFF        0
        !           123: 
        !           124: #define        V_AUTO          0x00            /* auto control of RTS, uses CTS */
        !           125: #define        V_MANUAL        0x80            /* manual control of RTS, ignore CTS */
        !           126: #define        V_DTR_ON        0x02            /* set DTR output */
        !           127: #define        V_DTR_OFF       0x00            /* drop DTR output */
        !           128: #define        V_RTS           0x01            /* set RTS output (manual only) */
        !           129: 
        !           130: #define        BRK_CHR 040                     /* break character */
        !           131: #define        DCD_ON  020                     /* */
        !           132: #define        DCD_OFF 010                     /* */
        !           133: #define        CTS_ON  004                     /* */
        !           134: #define        DSR_ON  0200                    /* modem signal states for bisync */
        !           135: #define        DSR_OFF 0100
        !           136: #define        DSR_CHG (DSR_ON|DSR_OFF)
        !           137: 
        !           138: #define        VX_SILO 0x800                   /* offset to base of silo */
        !           139: 
        !           140: /* input status bits returned in silo */
        !           141: #define        VX_PE   0x40                    /* parity error */
        !           142: #define        VX_FE   0x80                    /* framing error */
        !           143: #define        VX_RO   0xc0                    /* receiver overrun */
        !           144: 
        !           145: /* VIOC Process Error (PROCER) codes */
        !           146: #define        VP_SILO_OFLOW   0x40            /* input silo error, non-fatal */
        !           147: 
        !           148: #define        VRESPLEN        12
        !           149: #define        VCMDLEN         64
        !           150: #define        VC_IQLEN        64              /* Interrupt circular queue length */
        !           151: #define        NVCXBUFS        16*3            /* 3 bufs per port per viocx */
        !           152: #define        VC_CMDBUFL      NVCXBUFS        /* circular cmd (to exec) queue len*/
        !           153: 
        !           154: struct vcmds {
        !           155:        int     v_cmdsem;               /* # cmds waiting for itrque */
        !           156:        int     v_curcnt;               /* # cmds in itrque and executing */
        !           157:        caddr_t v_curcmd[VCMDLEN];      /* pointers to cmds being executed */
        !           158:        int     v_fill;                 /* circular fill index */
        !           159:        int     v_empty;                /* circular empty index */
        !           160:        caddr_t cmdbuf[VC_CMDBUFL];     /* circular cmd (to exec) queue */
        !           161:        int     v_itrfill;              /* circular intr issue queue fill */
        !           162:        int     v_itrempt;              /* circular intr issue queue empty */
        !           163:        short   v_itrqueu[VC_IQLEN];    /* circular intr issue queue */
        !           164: };
        !           165: 
        !           166: struct vxcmd {
        !           167:        struct  vxcmd *c_fwd;
        !           168:        short   cmd;
        !           169:        char    par[58];                /* pad to 64 total size */
        !           170: };
        !           171: 
        !           172: struct vxmit {
        !           173:        char    line;
        !           174:        char    bcount;
        !           175:        char    ostream[6];
        !           176: };
        !           177: 
        !           178: #define        SSPEED  13                      /* standard speed 9600 bps */

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