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/* $OpenBSD: com_isa.c,v 1.10 2022/04/06 18:59:28 naddy Exp $ */
/*
* Copyright (c) 1997 - 1999, Jason Downs. 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.
* 3. Neither the name(s) of the author(s) nor the name OpenBSD
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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.
*/
/*-
* Copyright (c) 1993, 1994, 1995, 1996
* Charles M. Hannum. All rights reserved.
* Copyright (c) 1991 The Regents of the University of California.
* 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.
* 3. Neither the name of the University 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 REGENTS 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 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.
*
* @(#)com.c 7.5 (Berkeley) 5/16/91
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/tty.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <dev/isa/isavar.h>
int com_isa_probe(struct device *, void *, void *);
void com_isa_attach(struct device *, struct device *, void *);
const struct cfattach com_isa_ca = {
sizeof(struct com_softc), com_isa_probe, com_isa_attach, NULL,
com_activate
};
int
com_isa_probe(struct device *parent, void *match, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_handle_t ioh;
bus_space_tag_t iot;
int iobase;
int rv;
iot = ia->ia_iot;
iobase = ia->ia_iobase;
if (iobase == comconsaddr && !comconsattached)
goto out;
if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh))
return (0);
rv = comprobe1(iot, ioh);
bus_space_unmap(iot, ioh, COM_NPORTS);
if (rv == 0)
return (0);
out:
ia->ia_iosize = COM_NPORTS;
ia->ia_msize = 0;
return (1);
}
void
com_isa_attach(struct device *parent, struct device *self, void *aux)
{
struct com_softc *sc = (struct com_softc *)self;
struct isa_attach_args *ia = aux;
bus_space_handle_t ioh;
bus_space_tag_t iot;
int iobase, irq;
sc->sc_hwflags = 0;
sc->sc_swflags = 0;
iobase = ia->ia_iobase;
iot = ia->ia_iot;
if (iobase != comconsaddr) {
if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh))
panic("com_isa_attach: mapping failed");
} else {
ioh = comconsioh;
}
sc->sc_iot = iot;
sc->sc_ioh = ioh;
sc->sc_iobase = iobase;
sc->sc_frequency = COM_FREQ;
com_attach_subr(sc);
irq = ia->ia_irq;
if (irq != IRQUNK) {
sc->sc_ih = isa_intr_establish(ia->ia_ic, irq,
IST_EDGE, IPL_TTY, comintr, sc,
sc->sc_dev.dv_xname);
}
}
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