mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 1995 Sean Eric Fagan.
|
|
* 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. Neither the name of the author nor the names of contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#ifndef _IC_ESP_H_
|
|
#define _IC_ESP_H_
|
|
|
|
/*
|
|
* Definitions for Hayes ESP serial cards.
|
|
*/
|
|
|
|
/*
|
|
* CMD1 and CMD2 are the command ports, offsets from <esp_iobase>.
|
|
*/
|
|
#define ESP_CMD1 4
|
|
#define ESP_CMD2 5
|
|
|
|
/*
|
|
* STAT1 and STAT2 are to get return values and status bytes;
|
|
* they overload CMD1 and CMD2.
|
|
*/
|
|
#define ESP_STATUS1 ESP_CMD1
|
|
#define ESP_STATUS2 ESP_CMD2
|
|
|
|
/*
|
|
* Commands. Commands are given by writing the command value to
|
|
* ESP_CMD1 and then writing or reading some number of bytes from
|
|
* ESP_CMD2 or ESP_STATUS2.
|
|
*/
|
|
#define ESP_GETTEST 0x01 /* self-test command (1 byte + extras) */
|
|
#define ESP_GETDIPS 0x02 /* get on-board DIP switches (1 byte) */
|
|
#define ESP_SETFLOWTYPE 0x08 /* set type of flow-control (2 bytes) */
|
|
#define ESP_SETRXFLOW 0x0a /* set Rx FIFO flow control levels (4 bytes) */
|
|
#define ESP_SETMODE 0x10 /* set board mode (1 byte) */
|
|
|
|
/* Mode bits (ESP_SETMODE). */
|
|
#define ESP_MODE_FIFO 0x02 /* act like a 16550 (compatibility mode) */
|
|
#define ESP_MODE_RTS 0x04 /* use RTS hardware flow control */
|
|
#define ESP_MODE_SCALE 0x80 /* scale FIFO trigger levels */
|
|
|
|
/* Flow control type bits (ESP_SETFLOWTYPE). */
|
|
#define ESP_FLOW_RTS 0x04 /* cmd1: local Rx sends RTS flow control */
|
|
#define ESP_FLOW_CTS 0x10 /* cmd2: local transmitter responds to CTS */
|
|
|
|
/* Used by ESP_SETRXFLOW. */
|
|
#define HIBYTE(w) (((w) >> 8) & 0xff)
|
|
#define LOBYTE(w) ((w) & 0xff)
|
|
|
|
#endif /* !_IC_ESP_H_ */
|