83 lines
3.2 KiB
C
83 lines
3.2 KiB
C
/* $NetBSD: dlreg.h,v 1.1 1997/02/04 19:13:19 ragge Exp $ */
|
|
/*
|
|
* Copyright (c) 1997 Ben Harris. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Ben Harris.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* dlreg.h -- Definitions for the DL11 and DLV11 serial cards.
|
|
*
|
|
* Style in imitation of dzreg.h.
|
|
*/
|
|
|
|
union w_b
|
|
{
|
|
u_short word;
|
|
struct {
|
|
u_char byte_lo;
|
|
u_char byte_hi;
|
|
} bytes;
|
|
};
|
|
|
|
struct DLregs
|
|
{
|
|
volatile u_short dl_rcsr; /* Receive Control/Status Register (R/W) */
|
|
volatile u_short dl_rbuf; /* Receive Buffer (R) */
|
|
volatile u_short dl_xcsr; /* Transmit Control/Status Register (R/W) */
|
|
volatile union w_b u_xbuf; /* Transmit Buffer (W) */
|
|
#define dl_xbuf u_xbuf.bytes.byte_lo
|
|
};
|
|
|
|
typedef struct DLregs dlregs;
|
|
|
|
/* RCSR bits */
|
|
|
|
#define DL_RCSR_RX_DONE 0x0080 /* Receiver Done (R) */
|
|
#define DL_RCSR_RXIE 0x0040 /* Receiver Interrupt Enable (R/W) */
|
|
#define DL_RCSR_READER_ENABLE 0x0001 /* [paper-tape] Reader Enable (W) */
|
|
#define DL_RCSR_BITS "\20\1READER_ENABLE\7RXIE\10RX_DONE\n"
|
|
|
|
/* RBUF bits */
|
|
|
|
#define DL_RBUF_ERR 0x8000 /* Error (R) */
|
|
#define DL_RBUF_OVERRUN_ERR 0x4000 /* Overrun Error (R) */
|
|
#define DL_RBUF_FRAMING_ERR 0x2000 /* Framing Error (R) */
|
|
#define DL_RBUF_PARITY_ERR 0x1000 /* Parity Error (R) */
|
|
#define DL_RBUF_DATA_MASK 0x00FF /* Receive Data (R) */
|
|
#define DL_RBUF_BITS "\20\15PARITY_ERR\16FRAMING_ERR\17OVERRUN_ERR\20ERR\n"
|
|
|
|
/* XCSR bits */
|
|
|
|
#define DL_XCSR_TX_READY 0x0080 /* Transmitter Ready (R) */
|
|
#define DL_XCSR_TXIE 0x0040 /* Transmit Interrupt Enable (R/W) */
|
|
#define DL_XCSR_TX_BREAK 0x0001 /* Transmit Break (R/W) */
|
|
#define DL_XCSR_BITS "\20\1TX_BREAK\7TXIE\10TX_READY\n"
|
|
|
|
/* XBUF is just data byte right justified. */
|