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/* $OpenBSD: com_ssio.c,v 1.2 2007/06/24 16:28:39 kettenis Exp $ */
/*
* Copyright (c) 2007 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/tty.h>
#include <machine/bus.h>
#include <machine/iomod.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <hppa/dev/ssiovar.h>
#define COM_SSIO_FREQ 1843200
int com_ssio_match(struct device *, void *, void *);
void com_ssio_attach(struct device *, struct device *, void *);
struct cfattach com_ssio_ca = {
sizeof(struct com_softc), com_ssio_match, com_ssio_attach
};
int
com_ssio_match(struct device *parent, void *match, void *aux)
{
struct cfdata *cf = match;
struct ssio_attach_args *saa = aux;
if (strcmp(saa->saa_name, "com") != 0)
return (0);
/* Check locators. */
if (cf->ssiocf_irq != SSIO_UNK_IRQ && cf->ssiocf_irq != saa->saa_irq)
return (0);
return (1);
}
void
com_ssio_attach(struct device *parent, struct device *self, void *aux)
{
struct com_softc *sc = (void *)self;
struct ssio_attach_args *saa = aux;
sc->sc_iot = saa->saa_iot;
sc->sc_iobase = saa->saa_iobase;
if (bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS,
0, &sc->sc_ioh)) {
printf(": cannot map io space\n");
return;
}
if (PAGE0->mem_cons.pz_class == PCL_DUPLEX &&
PAGE0->mem_cons.pz_hpa == sc->sc_ioh) {
bus_space_unmap(sc->sc_iot, sc->sc_ioh, COM_NPORTS);
comcnattach(sc->sc_iot, sc->sc_iobase, comdefaultrate,
COM_SSIO_FREQ, comconscflag);
}
sc->sc_frequency = COM_SSIO_FREQ;
com_attach_subr(sc);
sc->sc_ih = ssio_intr_establish(IPL_TTY, saa->saa_irq,
comintr, sc, sc->sc_dev.dv_xname);
}
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