718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. 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.
73 lines
3.1 KiB
C
73 lines
3.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 1995 by Pavel Antonov, Moscow, Russia.
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* Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia.
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* Copyright (C) 2002 by John Baldwin <jhb@FreeBSD.org>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 REGENTS 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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/*
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* Cirrus Logic CD180 -based RISCom/8 board definitions
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*/
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/* Oscillator frequency - 19660.08Mhz / 2 */
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#define RC_OSCFREQ 9830400
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#define RC_BRD(s) ((s) == 0 ? 0 : \
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(((RC_OSCFREQ + (s) / 2) / (s)) + CD180_CTICKS/2) / CD180_CTICKS)
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/* Riscom/8 board ISA I/O mapping */
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#define RC_IOMAP(r) ((((r) & 07) << 1) | (((r) & ~07) << 7))
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/* I/O commands */
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#define RC_OUT(sc, addr, value) \
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bus_space_write_1((sc)->sc_bt, (sc)->sc_bh, RC_IOMAP(addr), (value))
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#define RC_IN(sc, addr) \
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bus_space_read_1((sc)->sc_bt, (sc)->sc_bh, RC_IOMAP(addr))
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/* Riscom on-board registers (mapping assumed) */
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#define RC_RIREG 0x100 /* Ring Indicator Register (read-only) */
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#define RC_DTREG 0x100 /* DTR Register (write-only) */
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#define RC_BSR 0x101 /* Board Status Register (read-only) */
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#define RC_CTOUT 0x101 /* Clear Timeout (write-only) */
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/* Board Status Register */
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#define RC_BSR_TOUT 0x08 /* Timeout */
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#define RC_BSR_RXINT 0x04 /* Receiver Interrupt */
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#define RC_BSR_TXINT 0x02 /* Transmitter Interrupt */
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#define RC_BSR_MOINT 0x01 /* Modem Control Interrupt */
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/* Interrupt groups */
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#define RC_MODEMGRP 0x01 /* Modem interrupt group */
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#define RC_RXGRP 0x02 /* Receiver interrupt group */
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#define RC_TXGRP 0x04 /* Transmitter interrupt group */
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/* Priority Interrupt Level definitions */
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#define RC_PILR_MODEM (0x80 | RC_MODEMGRP)
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#define RC_PILR_RX (0x80 | RC_RXGRP )
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#define RC_PILR_TX (0x80 | RC_TXGRP )
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