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- /*
- * Copyright (c) 1982, 1986, 1990 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.
- *
- * @(#)dcareg.h 7.3 (Berkeley) 5/7/91
- */
-
- struct dcadevice {
- u_char dca_pad0;
- volatile u_char dca_irid;
- volatile short dca_ic;
- volatile short dca_ocbrc;
- volatile short dca_lcsm;
- short dca_pad1[4];
- u_char dca_pad2;
- volatile u_char dca_data;
- volatile short dca_ier;
- u_char dca_pad4;
- volatile u_char dca_iir; /* read-only */
- #define dca_fifo dca_iir /* write-only */
- volatile short dca_cfcr;
- volatile short dca_mcr;
- volatile short dca_lsr;
- u_char dca_pad3;
- volatile u_char dca_msr;
- };
-
- /* interface reset/id */
- #define DCAID0 0x02
- #define DCAREMID0 0x82
- #define DCAID1 0x42
- #define DCAREMID1 0xC2
-
- /* interrupt control */
- #define DCAIPL(x) ((((x) >> 4) & 3) + 3)
- #define IC_IR 0x40
- #define IC_IE 0x80
-
- /* 16 bit baud rate divisor (lower byte in dca_data, upper in dca_ier) */
- #define DCABRD(x) (153600 / (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_TRIGGER_1 0x00
- #define FIFO_TRIGGER_4 0x40
- #define FIFO_TRIGGER_8 0x80
- #define FIFO_TRIGGER_14 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_SRTS 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 SC9
- * and CONUNIT must be 0.
- */
- #define CONSCODE (9)
- #define CONUNIT (0)
-