NetBSD/sys/dev/ic/com_cpcbus.c

99 lines
3.5 KiB
C

/* $NetBSD: com_cpcbus.c,v 1.6 2005/12/11 12:21:26 christos Exp $ */
/*
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_cpcbus.c,v 1.6 2005/12/11 12:21:26 christos Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/tty.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <dev/ic/cpc700reg.h>
#include <dev/ic/cpc700var.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
struct com_cpc_softc {
struct com_softc sc_com;
void *sc_ih;
};
static int com_cpc_match(struct device *, struct cfdata *, void *);
static void com_cpc_attach(struct device *, struct device *, void *);
CFATTACH_DECL(com_cpcbus, sizeof(struct com_cpc_softc),
com_cpc_match, com_cpc_attach, NULL, NULL);
int
com_cpc_match(struct device *parent, struct cfdata *cf, void *aux)
{
struct cpcbus_attach_args *caa = aux;
return (strcmp(caa->cpca_name, "com") == 0);
}
void
com_cpc_attach(struct device *parent, struct device *self, void *aux)
{
struct cpcbus_attach_args *caa = aux;
struct com_cpc_softc *sc = (struct com_cpc_softc *)self;
int iobase = caa->cpca_addr;
int irq = caa->cpca_irq;
sc->sc_com.sc_iot = caa->cpca_tag;
sc->sc_com.sc_iobase = iobase;
if (!com_is_console(sc->sc_com.sc_iot, iobase, &sc->sc_com.sc_ioh) &&
bus_space_map(sc->sc_com.sc_iot, iobase, COM_NPORTS, 0,
&sc->sc_com.sc_ioh)) {
printf("%s: can't map i/o space\n", self->dv_xname);
return;
}
sc->sc_com.sc_frequency = CPC_COM_SPEED(caa->cpca_freq);
com_attach_subr(&sc->sc_com);
sc->sc_ih = intr_establish(irq, IST_LEVEL, IPL_SERIAL, comintr,
&sc->sc_com);
}