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/* $OpenBSD: com_obio.c,v 1.5 2008/06/26 05:42:09 ray Exp $ */
/* $NetBSD: com_obio.c,v 1.9 2005/12/11 12:17:09 christos Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas <matt@3am-software.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 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/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/termios.h>
#include <machine/bus.h>
#include <arm/xscale/i80321var.h>
#include <armish/dev/obiovar.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
struct com_obio_softc {
struct com_softc sc_com;
void *sc_ih;
};
int com_obio_match(struct device *, void *, void *);
void com_obio_attach(struct device *, struct device *, void *);
struct cfattach com_obio_ca = {
sizeof(struct com_obio_softc), com_obio_match, com_obio_attach
};
struct cfdriver com_obio_cd = {
NULL, "com_obio", DV_DULL
};
int com_irq_override = -1;
int
com_obio_match(struct device *parent, void *cf, void *aux)
{
struct obio_attach_args *oba = aux;
/* if the irq does not match, do not attach */
if (com_irq_override != -1)
oba->oba_irq = com_irq_override;
/* We take it on faith that the device is there. */
return (1);
}
void
com_obio_attach(struct device *parent, struct device *self, void *aux)
{
struct obio_attach_args *oba = aux;
struct com_obio_softc *osc = (void *) self;
struct com_softc *sc = &osc->sc_com;
int error;
sc->sc_iot = oba->oba_st;
sc->sc_iobase = oba->oba_addr;
sc->sc_frequency = COM_FREQ;
/* sc->sc_hwflags = COM_HW_NO_TXPRELOAD; */
sc->sc_hwflags = 0;
error = bus_space_map(sc->sc_iot, oba->oba_addr, 8, 0, &sc->sc_ioh);
if (error) {
printf(": failed to map registers: %d\n", error);
return;
}
com_attach_subr(sc);
osc->sc_ih = i80321_intr_establish(oba->oba_irq, IPL_TTY,
comintr, sc, sc->sc_dev.dv_xname);
if (osc->sc_ih == NULL)
printf("%s: unable to establish interrupt at CPLD irq %d\n",
sc->sc_dev.dv_xname, oba->oba_irq);
}
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