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/* $OpenBSD: dart_lrc.c,v 1.1 2009/03/01 21:40:49 miod Exp $ */
/*
* Copyright (c) 2006, 2009, Miodrag Vallat
*
* 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 <machine/autoconf.h>
#include <machine/cpu.h>
#include <mvme68k/dev/lrcreg.h>
#include <mvme68k/dev/dartreg.h>
#include <mvme68k/dev/dartvar.h>
int dart_lrc_match(struct device *parent, void *self, void *aux);
void dart_lrc_attach(struct device *parent, struct device *self, void *aux);
struct cfattach dartlrc_ca = {
sizeof(struct dartsoftc), dart_lrc_match, dart_lrc_attach
};
int
dart_lrc_match(struct device *parent, void *cf, void *aux)
{
struct confargs *ca = aux;
#if 0
bus_space_handle_t ioh;
int rc;
#endif
if (cputyp != CPU_165)
return (0);
/*
* We do not accept empty locators here...
*/
if (ca->ca_paddr != CONSOLE_DART_BASE)
return (0);
#if 0 /* overkill, this is the console so if we've run so far, it exists */
if (bus_space_map(ca->ca_iot, ca->ca_paddr, DART_SIZE, 0, &ioh) != 0)
return (0);
rc = badvaddr((vaddr_t)bus_space_vaddr(ca->ca_iot, ioh) + 3, 1);
bus_space_unmap(ca->ca_iot, ca->ca_paddr, DART_SIZE);
return (rc == 0);
#else
return (1);
#endif
}
void
dart_lrc_attach(struct device *parent, struct device *self, void *aux)
{
struct dartsoftc *sc = (struct dartsoftc *)self;
struct confargs *ca = aux;
bus_space_handle_t ioh;
if (ca->ca_ipl < 0)
ca->ca_ipl = IPL_TTY;
sc->sc_iot = ca->ca_iot;
if (bus_space_map(sc->sc_iot, ca->ca_paddr, DART_SIZE, 0, &ioh) != 0) {
printf(": can't map registers!\n");
return;
}
sc->sc_ioh = ioh;
sc->sc_console = 1; /* there can't be any other */
printf(": console");
/* enable interrupts */
sc->sc_ih.ih_fn = dartintr;
sc->sc_ih.ih_arg = sc;
sc->sc_ih.ih_wantframe = 0;
sc->sc_ih.ih_ipl = ca->ca_ipl;
lrcintr_establish(LRCVEC_DART, &sc->sc_ih, self->dv_xname);
sc->sc_vec = LRC_VECBASE + LRCVEC_DART;
dart_common_attach(sc);
}
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