92 lines
3.0 KiB
C
92 lines
3.0 KiB
C
/* $NetBSD: com_cpcbus.c,v 1.12 2018/12/08 17:46:13 thorpej Exp $ */
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/*
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: com_cpcbus.c,v 1.12 2018/12/08 17:46:13 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/tty.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <dev/ic/cpc700reg.h>
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#include <dev/ic/cpc700var.h>
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#include <dev/ic/comreg.h>
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#include <dev/ic/comvar.h>
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struct com_cpc_softc {
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struct com_softc sc_com;
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void *sc_ih;
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};
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static int com_cpc_match(device_t, cfdata_t , void *);
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static void com_cpc_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(com_cpcbus, sizeof(struct com_cpc_softc),
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com_cpc_match, com_cpc_attach, NULL, NULL);
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int
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com_cpc_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct cpcbus_attach_args *caa = aux;
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return (strcmp(caa->cpca_name, "com") == 0);
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}
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void
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com_cpc_attach(device_t parent, device_t self, void *aux)
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{
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struct cpcbus_attach_args *caa = aux;
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struct com_cpc_softc *sc = device_private(self);
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int iobase = caa->cpca_addr;
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int irq = caa->cpca_irq;
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bus_space_handle_t ioh;
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sc->sc_com.sc_dev = self;
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if (!com_is_console(caa->cpca_tag, iobase, &ioh) &&
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bus_space_map(caa->cpca_tag, iobase, COM_NPORTS, 0, &ioh)) {
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aprint_error_dev(self, "can't map i/o space\n");
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return;
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}
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com_init_regs(&sc->sc_com.sc_regs, caa->cpca_tag, ioh, iobase);
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sc->sc_com.sc_frequency = CPC_COM_SPEED(caa->cpca_freq);
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com_attach_subr(&sc->sc_com);
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sc->sc_ih = intr_establish(irq, IST_LEVEL, IPL_SERIAL, comintr,
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&sc->sc_com);
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}
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