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/* $OpenBSD: wax.c,v 1.6 2003/04/08 20:48:39 mickey Exp $ */
/*
* Copyright (c) 1998,2003 Michael Shalayeff
* All rights reserved.
*
* 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 Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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/reboot.h>
#include <machine/iomod.h>
#include <machine/autoconf.h>
#include <hppa/dev/cpudevs.h>
#include <hppa/gsc/gscbusvar.h>
#define WAX_IOMASK 0xfff00000
struct wax_regs {
u_int32_t wax_irr; /* int requset register */
u_int32_t wax_imr; /* int mask register */
u_int32_t wax_ipr; /* int pending register */
u_int32_t wax_icr; /* int command? register */
u_int32_t wax_iar; /* int acquire? register */
};
struct wax_softc {
struct device sc_dv;
struct gscbus_ic sc_ic;
struct wax_regs volatile *sc_regs;
};
int waxmatch(struct device *, void *, void *);
void waxattach(struct device *, struct device *, void *);
void wax_gsc_attach(struct device *);
struct cfattach wax_ca = {
sizeof(struct wax_softc), waxmatch, waxattach
};
struct cfdriver wax_cd = {
NULL, "wax", DV_DULL
};
int
waxmatch(parent, cfdata, aux)
struct device *parent;
void *cfdata;
void *aux;
{
struct confargs *ca = aux;
struct cfdata *cf = cfdata;
/* there will be only one */
if (cf->cf_unit > 0 ||
ca->ca_type.iodc_type != HPPA_TYPE_BHA ||
ca->ca_type.iodc_sv_model != HPPA_BHA_WAX)
return 0;
return 1;
}
void
waxattach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct wax_softc *sc = (struct wax_softc *)self;
struct confargs *ca = aux;
struct gsc_attach_args ga;
bus_space_handle_t ioh;
int s, in;
if (bus_space_map(ca->ca_iot, ca->ca_hpa + 0xc000,
IOMOD_HPASIZE, 0, &ioh)) {
printf(": can't map IO space\n");
return;
}
sc->sc_regs = (struct wax_regs *)ca->ca_hpa;
printf("\n");
/* interrupts guts */
s = splhigh();
sc->sc_regs->wax_iar = cpu_gethpa(0) | (31 - ca->ca_irq);
sc->sc_regs->wax_icr = 0;
sc->sc_regs->wax_imr = ~0U;
in = sc->sc_regs->wax_irr;
sc->sc_regs->wax_imr = 0;
splx(s);
sc->sc_ic.gsc_type = gsc_wax;
sc->sc_ic.gsc_dv = sc;
sc->sc_ic.gsc_base = sc->sc_regs;
ga.ga_ca = *ca; /* clone from us */
ga.ga_dp.dp_bc[0] = ga.ga_dp.dp_bc[1];
ga.ga_dp.dp_bc[1] = ga.ga_dp.dp_bc[2];
ga.ga_dp.dp_bc[2] = ga.ga_dp.dp_bc[3];
ga.ga_dp.dp_bc[3] = ga.ga_dp.dp_bc[4];
ga.ga_dp.dp_bc[4] = ga.ga_dp.dp_bc[5];
ga.ga_dp.dp_bc[5] = ga.ga_dp.dp_mod;
ga.ga_dp.dp_mod = 0;
ga.ga_name = "gsc";
ga.ga_hpamask = WAX_IOMASK;
ga.ga_ic = &sc->sc_ic;
config_found(self, &ga, gscprint);
}
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