77 lines
3.0 KiB
C
77 lines
3.0 KiB
C
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/* $NetBSD: hayespreg.h,v 1.1 1996/02/10 20:23:40 christos Exp $ */
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/*-
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* Copyright (c) 1995 Sean E. Fagin, John M Vinopal.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _HAYESPREG_H_
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#define _HAYESPREG_H_
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/*
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* Definitions for Hayes ESP serial cards.
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*/
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/*
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* CMD1 and CMD2 are the command ports, offsets from <hayesp_iobase>.
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*/
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#define HAYESP_CMD1 4
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#define HAYESP_CMD2 5
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/*
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* STAT1 and STAT2 are to get return values and status bytes
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*/
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#define HAYESP_STATUS1 HAYESP_CMD1
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#define HAYESP_STATUS2 HAYESP_CMD2
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/*
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* Commands. Commands are given by writing the command value to
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* HAYESP_CMD1 and then writing or reading some number of bytes from
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* HAYESP_CMD2 or HAYESP_STATUS2.
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*/
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#define HAYESP_GETTEST 0x01 /* self-test command (1b+extras) */
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#define HAYESP_GETDIPS 0x02 /* get on-board DIP switches (1b) */
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#define HAYESP_SETFLOWTYPE 0x08 /* set type of flow-control (2b) */
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#define HAYESP_SETRXFLOW 0x0a /* set Rx FIFO " levels (4b) */
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#define HAYESP_SETMODE 0x10 /* set board mode (1b) */
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/* Mode bits (HAYESP_SETMODE). */
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#define HAYESP_MODE_FIFO 0x02 /* act like a 16550 (compat mode) */
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#define HAYESP_MODE_RTS 0x04 /* use RTS hardware flow control */
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#define HAYESP_MODE_SCALE 0x80 /* scale FIFO trigger levels */
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/* Flow control type bits (HAYESP_SETFLOWTYPE). */
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#define HAYESP_FLOW_RTS 0x04 /* cmd1: local Rx sends RTS flow control */
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#define HAYESP_FLOW_CTS 0x10 /* cmd2: local transmitter responds to CTS */
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/* Used by HAYESP_SETRXFLOW. */
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#define HAYESP_RXHIWMARK 768
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#define HAYESP_RXLOWMARK 512
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#define HAYESP_HIBYTE(w) (((w) >> 8) & 0xff)
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#define HAYESP_LOBYTE(w) ((w) & 0xff)
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#endif /* !_HAYESPREG_H_ */
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