144 lines
4.2 KiB
C
144 lines
4.2 KiB
C
/* $NetBSD: npx_isa.c,v 1.8 2002/11/22 15:23:50 fvdl Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1994, 1995, 1998 Charles M. Hannum. All rights reserved.
|
|
* Copyright (c) 1990 William Jolitz.
|
|
* 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. 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 1.8 2002/11/22 15:23:50 fvdl 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(struct device *, struct cfdata *, void *);
|
|
void npx_isa_attach(struct device *, struct device *, void *);
|
|
|
|
CFATTACH_DECL(npx_isa, sizeof(struct npx_softc),
|
|
npx_isa_probe, npx_isa_attach, NULL, NULL);
|
|
|
|
int
|
|
npx_isa_probe(struct device *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 *)(u_long)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(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct npx_softc *sc = (void *)self;
|
|
struct isa_attach_args *ia = aux;
|
|
|
|
sc->sc_iot = ia->ia_iot;
|
|
|
|
if (bus_space_map(sc->sc_iot, 0xf0, 16, 0, &sc->sc_ioh)) {
|
|
printf("\n");
|
|
panic("npxattach: unable to map I/O space");
|
|
}
|
|
|
|
sc->sc_type = (u_long) ia->ia_aux;
|
|
|
|
switch (sc->sc_type) {
|
|
case NPX_INTERRUPT:
|
|
printf("\n");
|
|
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:
|
|
printf(": using exception 16\n");
|
|
break;
|
|
case NPX_BROKEN:
|
|
printf(": error reporting broken; not using\n");
|
|
sc->sc_type = NPX_NONE;
|
|
return;
|
|
case NPX_NONE:
|
|
return;
|
|
}
|
|
|
|
npxattach(sc);
|
|
}
|