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/* $OpenBSD: com_lbus.c,v 1.5 2008/02/20 18:46:20 miod Exp $ */
/*
* Copyright (c) 2001-2004 Opsycon AB (www.opsycon.se / www.opsycon.com)
*
* 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 AUTHOR ``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 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/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/tty.h>
#include <machine/autoconf.h>
#include <mips64/archtype.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <dev/ic/ns16550reg.h>
#include <sgi/localbus/macebus.h>
int com_macebus_probe(struct device *, void *, void *);
void com_macebus_attach(struct device *, struct device *, void *);
struct cfattach com_macebus_ca = {
sizeof(struct com_softc), com_macebus_probe, com_macebus_attach
};
extern void com_raisedtr(void *);
extern struct timeout compoll_to;
int
com_macebus_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
bus_space_tag_t iot;
bus_space_handle_t ioh;
struct confargs *ca = aux;
bus_addr_t iobase, rv = 0;
iobase = (bus_addr_t)ca->ca_baseaddr;
if (iobase) {
iot = ca->ca_iot;
/* if it's in use as console, it's there. */
if (!(iobase == comconsaddr && !comconsattached)) {
bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh);
rv = comprobe1(iot, ioh);
} else {
rv = 1;
}
}
return (rv);
}
void
com_macebus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct com_softc *sc = (void *)self;
int intr;
bus_addr_t iobase;
bus_space_handle_t ioh;
struct confargs *ca = aux;
sc->sc_hwflags = 0;
sc->sc_swflags = 0;
iobase = (bus_addr_t)ca->ca_baseaddr;
intr = ca->ca_intr;
sc->sc_iobase = iobase;
sc->sc_frequency = sys_config.cons_baudclk; /* XXX */
sc->sc_iot = ca->ca_iot;
/* if it's in use as console, it's there. */
if (!(iobase == comconsaddr && !comconsattached)) {
if (bus_space_map(sc->sc_iot, iobase, COM_NPORTS, 0, &ioh)) {
panic("unexpected bus_space_map failure");
}
}
else {
ioh = comconsioh;
}
sc->sc_ioh = ioh;
com_attach_subr(sc);
/* Enable IE pin. Some boards are not edge sensitive */
SET(sc->sc_mcr, MCR_IENABLE);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_mcr, sc->sc_mcr);
macebus_intr_establish(NULL, intr, IST_EDGE, IPL_TTY,
comintr, (void *)sc, sc->sc_dev.dv_xname);
}
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