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Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
80 lines
3.0 KiB
C
80 lines
3.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1995 Sean Eric Fagan.
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* All rights reserved.
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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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* $FreeBSD$
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*/
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#ifndef _IC_ESP_H_
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#define _IC_ESP_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 <esp_iobase>.
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*/
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#define ESP_CMD1 4
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#define ESP_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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* they overload CMD1 and CMD2.
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*/
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#define ESP_STATUS1 ESP_CMD1
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#define ESP_STATUS2 ESP_CMD2
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/*
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* Commands. Commands are given by writing the command value to
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* ESP_CMD1 and then writing or reading some number of bytes from
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* ESP_CMD2 or ESP_STATUS2.
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*/
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#define ESP_GETTEST 0x01 /* self-test command (1 byte + extras) */
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#define ESP_GETDIPS 0x02 /* get on-board DIP switches (1 byte) */
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#define ESP_SETFLOWTYPE 0x08 /* set type of flow-control (2 bytes) */
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#define ESP_SETRXFLOW 0x0a /* set Rx FIFO flow control levels (4 bytes) */
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#define ESP_SETMODE 0x10 /* set board mode (1 byte) */
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#define ESP_SETCLOCK 0x23 /* set UART clock prescaler */
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/* Mode bits (ESP_SETMODE). */
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#define ESP_MODE_FIFO 0x02 /* act like a 16550 (compatibility mode) */
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#define ESP_MODE_RTS 0x04 /* use RTS hardware flow control */
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#define ESP_MODE_SCALE 0x80 /* scale FIFO trigger levels */
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/* Flow control type bits (ESP_SETFLOWTYPE). */
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#define ESP_FLOW_RTS 0x04 /* cmd1: local Rx sends RTS flow control */
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#define ESP_FLOW_CTS 0x10 /* cmd2: local transmitter responds to CTS */
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/* Used by ESP_SETRXFLOW. */
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#define HIBYTE(w) (((w) >> 8) & 0xff)
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#define LOBYTE(w) ((w) & 0xff)
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#endif /* !_IC_ESP_H_ */
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