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/* $NetBSD: com_ebus.c,v 1.11 2003/07/15 00:04:53 lukem Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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_ebus.c,v 1.11 2003/07/15 00:04:53 lukem Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/termios.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/intr.h>
#include <dev/ebus/ebusreg.h>
#include <dev/ebus/ebusvar.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
struct com_ebus_softc {
struct com_softc ebsc_com; /* real "com" softc */
/* this space for rent */
};
static int com_ebus_match(struct device *, struct cfdata *, void *);
static void com_ebus_attach(struct device *, struct device *, void *);
CFATTACH_DECL(com_ebus, sizeof(struct com_ebus_softc),
com_ebus_match, com_ebus_attach, NULL, NULL);
static int
com_ebus_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct ebus_attach_args *ea = aux;
bus_space_handle_t ioh;
int match;
if (strcmp(ea->ea_name, "su") != 0)
return (0);
match = 0;
if (bus_space_map(ea->ea_bustag, EBUS_ADDR_FROM_REG(&ea->ea_reg[0]),
ea->ea_reg[0].size, 0, &ioh) == 0)
{
match = comprobe1(ea->ea_bustag, ioh);
bus_space_unmap(ea->ea_bustag, ioh, ea->ea_reg[0].size);
}
return (match);
}
static void
com_ebus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct com_ebus_softc *ebsc = (void *)self;
struct com_softc *sc = &ebsc->ebsc_com;
struct ebus_attach_args *ea = aux;
sc->sc_iot = ea->ea_bustag;
sc->sc_iobase = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]);
sc->sc_frequency = COM_FREQ;
sc->sc_hwflags = COM_HW_NO_TXPRELOAD;
/*
* XXX: It would be nice to be able to split console input and
* output to different devices. For now switch to serial
* console if PROM stdin is on serial (so that we can use DDB).
*/
if (prom_instance_to_package(prom_stdin()) == ea->ea_node)
comcnattach(sc->sc_iot, sc->sc_iobase,
B9600, sc->sc_frequency, COM_TYPE_NORMAL,
(CLOCAL | CREAD | CS8));
if (!com_is_console(sc->sc_iot, sc->sc_iobase, &sc->sc_ioh)
&& bus_space_map(sc->sc_iot, sc->sc_iobase, ea->ea_reg[0].size,
0, &sc->sc_ioh) != 0)
{
printf(": unable to map device registers\n");
return;
}
com_attach_subr(sc);
if (ea->ea_nintr != 0)
(void)bus_intr_establish(sc->sc_iot,
ea->ea_intr[0], IPL_SERIAL,
comintr, sc);
}
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