174 lines
4.8 KiB
C
174 lines
4.8 KiB
C
/* $NetBSD: isa_machdep.c,v 1.28 2004/08/30 15:05:16 drochner Exp $ */
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/*
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* Copyright (c) 1997 Leo Weppelman. All rights reserved.
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1994 Charles M. Hannum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles M. Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: isa_machdep.c,v 1.28 2004/08/30 15:05:16 drochner Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#define _ATARI_BUS_DMA_PRIVATE
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#include <machine/bus.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isareg.h>
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#include "pckbc.h"
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#if (NPCKBC > 0)
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#include <dev/ic/pckbcvar.h>
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#include <dev/isa/isareg.h>
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#include <dev/ic/i8042reg.h>
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#endif /* NPCKBC > 0 */
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#include <machine/iomap.h>
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#include <machine/mfp.h>
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#include <atari/atari/device.h>
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#include "isadma.h"
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#if NISADMA == 0
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/*
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* Entry points for ISA DMA while no DMA capable devices are attached.
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* This must be a serious error. Cause a panic...
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*/
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struct atari_bus_dma_tag isa_bus_dma_tag = {
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0
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};
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#endif /* NISADMA == 0 */
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static int atariisabusprint __P((void *auxp, const char *));
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static int isabusmatch __P((struct device *, struct cfdata *, void *));
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static void isabusattach __P((struct device *, struct device *, void *));
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struct isabus_softc {
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struct device sc_dev;
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struct atari_isa_chipset sc_chipset;
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};
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CFATTACH_DECL(isab, sizeof(struct isabus_softc),
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isabusmatch, isabusattach, NULL, NULL);
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/*
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* We need some static storage to attach a console keyboard on the Milan
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* during early console init.
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*/
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static struct atari_bus_space bs_storage[2]; /* 1 iot, 1 memt */
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int
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isabusmatch(pdp, cfp, auxp)
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struct device *pdp;
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struct cfdata *cfp;
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void *auxp;
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{
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static int nmatched = 0;
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if (strcmp((char *)auxp, "isab"))
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return (0); /* Wrong number... */
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if(atari_realconfig == 0)
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return (1);
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if (machineid & (ATARI_HADES|ATARI_MILAN)) {
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/*
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* The Hades and Milan have only one pci bus
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*/
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if (nmatched)
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return (0);
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nmatched++;
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return (1);
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}
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return(0);
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}
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void
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isabusattach(pdp, dp, auxp)
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struct device *pdp, *dp;
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void *auxp;
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{
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struct isabus_softc *sc = (struct isabus_softc *)dp;
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struct isabus_attach_args iba;
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extern struct atari_bus_dma_tag isa_bus_dma_tag;
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extern void isa_bus_init(void);
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iba.iba_dmat = &isa_bus_dma_tag;
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iba.iba_iot = leb_alloc_bus_space_tag(&bs_storage[0]);
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iba.iba_memt = leb_alloc_bus_space_tag(&bs_storage[1]);
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iba.iba_ic = &sc->sc_chipset;
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if ((iba.iba_iot == NULL) || (iba.iba_memt == NULL)) {
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printf("leb_alloc_bus_space_tag failed!\n");
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return;
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}
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iba.iba_iot->base = ISA_IOSTART;
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iba.iba_memt->base = ISA_MEMSTART;
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if (machineid & ATARI_HADES)
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MFP->mf_aer |= (IO_ISA1|IO_ISA2); /* ISA interrupts: LOW->HIGH */
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isa_bus_init();
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if (dp == NULL) { /* Early init */
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#if (NPCKBC > 0)
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pckbc_cnattach(iba.iba_iot, IO_KBD, KBCMDP, PCKBC_KBD_SLOT);
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#endif
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return;
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}
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printf("\n");
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config_found_ia(dp, "isabus", &iba, atariisabusprint);
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}
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int
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atariisabusprint(auxp, name)
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void *auxp;
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const char *name;
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{
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if(name == NULL)
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return(UNCONF);
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return(QUIET);
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}
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void
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isa_attach_hook(parent, self, iba)
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struct device *parent, *self;
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struct isabus_attach_args *iba;
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{
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}
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const struct evcnt *
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isa_intr_evcnt(isa_chipset_tag_t ic, int irq)
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{
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/* XXX for now, no evcnt parent reported */
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return NULL;
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}
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