NetBSD-5.0.2/sys/arch/i386/isa/npx_isa.c
/* $NetBSD: npx_isa.c,v 1.19 2008/04/11 20:42:34 cegger Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)npx.c 7.2 (Berkeley) 5/12/91
*/
/*-
* Copyright (c) 1994, 1995, 1998 Charles M. Hannum. All rights reserved.
* Copyright (c) 1990 William Jolitz.
*
* 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)npx.c 7.2 (Berkeley) 5/12/91
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: npx_isa.c,v 1.19 2008/04/11 20:42:34 cegger Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <machine/cpufunc.h>
#include <machine/intr.h>
#include <machine/specialreg.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <i386/isa/npxvar.h>
int npx_isa_probe(device_t, struct cfdata *, void *);
void npx_isa_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(npx_isa, sizeof(struct npx_softc),
npx_isa_probe, npx_isa_attach, npxdetach, NULL);
int
npx_isa_probe(device_t parent, struct cfdata *match, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_handle_t ioh;
enum npx_type result;
if (ia->ia_nio < 1)
return (0);
if (ia->ia_nirq < 1)
return (0);
if (ISA_DIRECT_CONFIG(ia))
return (0);
if (bus_space_map(ia->ia_iot, 0xf0, 16, 0, &ioh) != 0)
return (0);
result = npxprobe1(ia->ia_iot, ioh, ia->ia_irq[0].ir_irq);
bus_space_unmap(ia->ia_iot, ioh, 16);
if (result != NPX_NONE) {
/*
* Remember our result -- we don't want to have to npxprobe1()
* again (especially if we've zapped the IRQ).
*/
ia->ia_aux = (void *)(intptr_t)result;
ia->ia_nio = 1;
ia->ia_io[0].ir_addr = 0xf0;
ia->ia_io[0].ir_size = 16;
if (result != NPX_INTERRUPT)
ia->ia_nirq = 0; /* zap the interrupt */
else
ia->ia_nirq = 1;
ia->ia_niomem = 0;
ia->ia_ndrq = 0;
return (1);
}
return (0);
}
void
npx_isa_attach(device_t parent, device_t self, void *aux)
{
struct npx_softc *sc = device_private(self);
struct isa_attach_args *ia = aux;
aprint_naive("\n");
aprint_normal("\n");
sc->sc_dev = self;
sc->sc_type = (u_long) ia->ia_aux;
switch (sc->sc_type) {
case NPX_INTERRUPT:
sc->sc_iot = ia->ia_iot;
if (bus_space_map(sc->sc_iot, 0xf0, 16, 0, &sc->sc_ioh))
panic("%s: unable to map I/O space", __func__);
lcr0(rcr0() & ~CR0_NE);
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
IST_EDGE, IPL_NONE, (int (*)(void *))npxintr, 0);
break;
case NPX_EXCEPTION:
/*FALLTHROUGH*/
case NPX_CPUID:
aprint_verbose_dev(sc->sc_dev, "%s using exception 16\n",
sc->sc_type == NPX_CPUID ? "reported by CPUID;" : "");
sc->sc_type = NPX_EXCEPTION;
break;
case NPX_BROKEN:
aprint_error_dev(sc->sc_dev,
"error reporting broken; not using\n");
sc->sc_type = NPX_NONE;
return;
case NPX_NONE:
return;
}
npxattach(sc);
}