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/*- * Copyright (C) 1995 by Pavel Antonov, Moscow, Russia. * Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia. * Copyright (C) 2002 by John Baldwin <jhb@FreeBSD.org> * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 REGENTS 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/rc/rcreg.h 139749 2005-01-06 01:43:34Z imp $ */ /* * Cirrus Logic CD180 -based RISCom/8 board definitions */ /* Oscillator frequency - 19660.08Mhz / 2 */ #define RC_OSCFREQ 9830400 #define RC_BRD(s) ((s) == 0 ? 0 : \ (((RC_OSCFREQ + (s) / 2) / (s)) + CD180_CTICKS/2) / CD180_CTICKS) /* Riscom/8 board ISA I/O mapping */ #define RC_IOMAP(r) ((((r) & 07) << 1) | (((r) & ~07) << 7)) /* I/O commands */ #define RC_OUT(sc, addr, value) \ bus_space_write_1((sc)->sc_bt, (sc)->sc_bh, RC_IOMAP(addr), (value)) #define RC_IN(sc, addr) \ bus_space_read_1((sc)->sc_bt, (sc)->sc_bh, RC_IOMAP(addr)) /* Riscom on-board registers (mapping assumed) */ #define RC_RIREG 0x100 /* Ring Indicator Register (read-only) */ #define RC_DTREG 0x100 /* DTR Register (write-only) */ #define RC_BSR 0x101 /* Board Status Register (read-only) */ #define RC_CTOUT 0x101 /* Clear Timeout (write-only) */ /* Board Status Register */ #define RC_BSR_TOUT 0x08 /* Timeout */ #define RC_BSR_RXINT 0x04 /* Receiver Interrupt */ #define RC_BSR_TXINT 0x02 /* Transmitter Interrupt */ #define RC_BSR_MOINT 0x01 /* Modem Control Interrupt */ /* Interrupt groups */ #define RC_MODEMGRP 0x01 /* Modem interrupt group */ #define RC_RXGRP 0x02 /* Receiver interrupt group */ #define RC_TXGRP 0x04 /* Transmitter interrupt group */ /* Priority Interrupt Level definitions */ #define RC_PILR_MODEM (0x80 | RC_MODEMGRP) #define RC_PILR_RX (0x80 | RC_RXGRP ) #define RC_PILR_TX (0x80 | RC_TXGRP )