126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
/*-
|
|
* Copyright (c) 1991 The Regents of the University of California.
|
|
* 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 the University of
|
|
* California, Berkeley and its contributors.
|
|
* 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.
|
|
*
|
|
* from: @(#)comreg.h 7.2 (Berkeley) 5/9/91
|
|
* $Id$
|
|
*/
|
|
|
|
|
|
/* 16 bit baud rate divisor (lower byte in dca_data, upper in dca_ier) */
|
|
#define COMBRD(x) (1843200 / (16*(x)))
|
|
|
|
/* interrupt enable register */
|
|
#define IER_ERXRDY 0x1
|
|
#define IER_ETXRDY 0x2
|
|
#define IER_ERLS 0x4
|
|
#define IER_EMSC 0x8
|
|
|
|
/* interrupt identification register */
|
|
#define IIR_IMASK 0xf
|
|
#define IIR_RXTOUT 0xc
|
|
#define IIR_RLS 0x6
|
|
#define IIR_RXRDY 0x4
|
|
#define IIR_TXRDY 0x2
|
|
#define IIR_NOPEND 0x1
|
|
#define IIR_MLSC 0x0
|
|
#define IIR_FIFO_MASK 0xc0 /* set if FIFOs are enabled */
|
|
|
|
/* fifo control register */
|
|
#define FIFO_ENABLE 0x01
|
|
#define FIFO_RCV_RST 0x02
|
|
#define FIFO_XMT_RST 0x04
|
|
#define FIFO_DMA_MODE 0x08
|
|
#define FIFO_RX_LOW 0x00
|
|
#define FIFO_RX_MEDL 0x40
|
|
#define FIFO_RX_MEDH 0x80
|
|
#define FIFO_RX_HIGH 0xc0
|
|
|
|
/* character format control register */
|
|
#define CFCR_DLAB 0x80
|
|
#define CFCR_SBREAK 0x40
|
|
#define CFCR_PZERO 0x30
|
|
#define CFCR_PONE 0x20
|
|
#define CFCR_PEVEN 0x10
|
|
#define CFCR_PODD 0x00
|
|
#define CFCR_PENAB 0x08
|
|
#define CFCR_STOPB 0x04
|
|
#define CFCR_8BITS 0x03
|
|
#define CFCR_7BITS 0x02
|
|
#define CFCR_6BITS 0x01
|
|
#define CFCR_5BITS 0x00
|
|
|
|
/* modem control register */
|
|
#define MCR_LOOPBACK 0x10
|
|
#define MCR_IENABLE 0x08
|
|
#define MCR_DRS 0x04
|
|
#define MCR_RTS 0x02
|
|
#define MCR_DTR 0x01
|
|
|
|
/* line status register */
|
|
#define LSR_RCV_FIFO 0x80
|
|
#define LSR_TSRE 0x40
|
|
#define LSR_TXRDY 0x20
|
|
#define LSR_BI 0x10
|
|
#define LSR_FE 0x08
|
|
#define LSR_PE 0x04
|
|
#define LSR_OE 0x02
|
|
#define LSR_RXRDY 0x01
|
|
#define LSR_RCV_MASK 0x1f
|
|
|
|
/* modem status register */
|
|
#define MSR_DCD 0x80
|
|
#define MSR_RI 0x40
|
|
#define MSR_DSR 0x20
|
|
#define MSR_CTS 0x10
|
|
#define MSR_DDCD 0x08
|
|
#define MSR_TERI 0x04
|
|
#define MSR_DDSR 0x02
|
|
#define MSR_DCTS 0x01
|
|
|
|
/*
|
|
* WARNING: Serial console is assumed to be at COM1 address
|
|
* and CONUNIT must be 0.
|
|
*
|
|
* Well, maybe not...
|
|
*/
|
|
#ifndef CONADDR
|
|
#define CONADDR (0x3F8)
|
|
#endif
|
|
|
|
#ifndef CONUNIT
|
|
#define CONUNIT (0)
|
|
#endif
|
|
|
|
#ifndef CONSPEED
|
|
#define CONSPEED (9600)
|
|
#endif
|