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Annotation of sys/arch/vax/qbus/dlreg.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: dlreg.h,v 1.1 2000/04/27 03:14:47 bjc Exp $   */
                      2: /*     $NetBSD: dlreg.h,v 1.3 1999/05/27 16:02:04 ragge Exp $  */
                      3: /*
                      4:  * Copyright (c) 1997  Ben Harris.  All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  * 1. Redistributions of source code must retain the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer.
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in the
                     13:  *    documentation and/or other materials provided with the distribution.
                     14:  * 3. All advertising materials mentioning features or use of this software
                     15:  *    must display the following acknowledgement:
                     16:  *     This product includes software developed by Ben Harris.
                     17:  * 4. Neither the name of the University nor the names of its contributors
                     18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  */
                     33:
                     34: /*
                     35:  * dlreg.h -- Definitions for the DL11 and DLV11 serial cards.
                     36:  *
                     37:  * Style in imitation of dzreg.h.
                     38:  */
                     39:
                     40: #ifdef notdef
                     41: union w_b
                     42: {
                     43:        u_short word;
                     44:        struct {
                     45:                u_char byte_lo;
                     46:                u_char byte_hi;
                     47:        } bytes;
                     48: };
                     49:
                     50: struct DLregs
                     51: {
                     52:        volatile u_short dl_rcsr; /* Receive Control/Status Register (R/W) */
                     53:        volatile u_short dl_rbuf; /* Receive Buffer (R) */
                     54:        volatile u_short dl_xcsr; /* Transmit Control/Status Register (R/W) */
                     55:        volatile union w_b u_xbuf; /* Transmit Buffer (W) */
                     56: #define dl_xbuf u_xbuf.bytes.byte_lo
                     57: };
                     58:
                     59: typedef struct DLregs dlregs;
                     60: #endif
                     61:
                     62: #define        DL_UBA_RCSR     0
                     63: #define        DL_UBA_RBUF     2
                     64: #define        DL_UBA_XCSR     4
                     65: #define        DL_UBA_XBUFL    6
                     66:
                     67: /* RCSR bits */
                     68:
                     69: #define DL_RCSR_RX_DONE                0x0080 /* Receiver Done (R) */
                     70: #define DL_RCSR_RXIE           0x0040 /* Receiver Interrupt Enable (R/W) */
                     71: #define DL_RCSR_READER_ENABLE  0x0001 /* [paper-tape] Reader Enable (W) */
                     72: #define DL_RCSR_BITS           "\20\1READER_ENABLE\7RXIE\10RX_DONE\n"
                     73:
                     74: /* RBUF bits */
                     75:
                     76: #define DL_RBUF_ERR            0x8000 /* Error (R) */
                     77: #define DL_RBUF_OVERRUN_ERR    0x4000 /* Overrun Error (R) */
                     78: #define DL_RBUF_FRAMING_ERR    0x2000 /* Framing Error (R) */
                     79: #define DL_RBUF_PARITY_ERR     0x1000 /* Parity Error (R) */
                     80: #define DL_RBUF_DATA_MASK      0x00FF /* Receive Data (R) */
                     81: #define DL_RBUF_BITS   "\20\15PARITY_ERR\16FRAMING_ERR\17OVERRUN_ERR\20ERR\n"
                     82:
                     83: /* XCSR bits */
                     84:
                     85: #define DL_XCSR_TX_READY       0x0080 /* Transmitter Ready (R) */
                     86: #define DL_XCSR_TXIE           0x0040 /* Transmit Interrupt Enable (R/W) */
                     87: #define DL_XCSR_TX_BREAK       0x0001 /* Transmit Break (R/W) */
                     88: #define DL_XCSR_BITS           "\20\1TX_BREAK\7TXIE\10TX_READY\n"
                     89:
                     90: /* XBUF is just data byte right justified. */