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/*- * 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. * * $FreeBSD: release/9.1.0/sys/dev/ic/esp.h 77961 2001-06-10 04:20:37Z nyan $ */ #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) */ #define ESP_SETCLOCK 0x23 /* set UART clock prescaler */ /* 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_ */