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/* $NetBSD: isa_machdep.c,v 1.43 2021/08/07 16:18:46 thorpej Exp $ */
/*
* Copyright (c) 1997 Leo Weppelman. All rights reserved.
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Charles M. Hannum. 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 Charles M. Hannum.
* 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: isa_machdep.c,v 1.43 2021/08/07 16:18:46 thorpej Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#define _ATARI_BUS_DMA_PRIVATE
#include <sys/bus.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isareg.h>
#include "pckbc.h"
#if (NPCKBC > 0)
#include <dev/ic/pckbcvar.h>
#include <dev/ic/i8042reg.h>
#endif /* NPCKBC > 0 */
#include <machine/iomap.h>
#include <machine/mfp.h>
#include <atari/atari/device.h>
#include "isadma.h"
#if NISADMA == 0
/*
* Entry points for ISA DMA while no DMA capable devices are attached.
* This must be a serious error. Cause a panic...
*/
struct atari_bus_dma_tag isa_bus_dma_tag = {
0
};
#endif /* NISADMA == 0 */
static int atariisabusprint(void *, const char *);
static int isabusmatch(device_t, cfdata_t, void *);
static void isabusattach(device_t, device_t, void *);
struct isabus_softc {
device_t sc_dev;
struct atari_isa_chipset sc_chipset;
};
CFATTACH_DECL_NEW(isab, sizeof(struct isabus_softc),
isabusmatch, isabusattach, NULL, NULL);
/*
* We need some static storage to attach a console keyboard on the Milan
* during early console init.
*/
static struct atari_bus_space bs_storage[2]; /* 1 iot, 1 memt */
int
isabusmatch(device_t parent, cfdata_t cf, void *aux)
{
static int nmatched = 0;
if (strcmp((char *)aux, "isab"))
return 0; /* Wrong number... */
if (atari_realconfig == 0)
return 1;
if (machineid & (ATARI_HADES|ATARI_MILAN)) {
/*
* The Hades and Milan have only one pci bus
*/
if (nmatched)
return 0;
nmatched++;
return 1;
}
return 0;
}
void
isabusattach(device_t parent, device_t self, void *aux)
{
struct isabus_softc *sc;
struct isabus_attach_args iba;
extern struct atari_bus_dma_tag isa_bus_dma_tag;
extern void isa_bus_init(void);
iba.iba_dmat = &isa_bus_dma_tag;
iba.iba_iot = leb_alloc_bus_space_tag(&bs_storage[0]);
iba.iba_memt = leb_alloc_bus_space_tag(&bs_storage[1]);
if ((iba.iba_iot == NULL) || (iba.iba_memt == NULL)) {
printf("leb_alloc_bus_space_tag failed!\n");
return;
}
iba.iba_iot->base = ISA_IOSTART;
iba.iba_memt->base = ISA_MEMSTART;
if (machineid & ATARI_HADES)
MFP->mf_aer |= (IO_ISA1|IO_ISA2); /* ISA interrupts: LOW->HIGH */
isa_bus_init();
if (self == NULL) { /* Early init */
#if (NPCKBC > 0)
pckbc_cnattach(iba.iba_iot, IO_KBD, KBCMDP, PCKBC_KBD_SLOT, 0);
#endif
return;
}
sc = device_private(self);
sc->sc_dev = self;
iba.iba_ic = &sc->sc_chipset;
printf("\n");
config_found(self, &iba, atariisabusprint, CFARGS_NONE);
}
int
atariisabusprint(void *aux, const char *name)
{
if (name == NULL)
return UNCONF;
return QUIET;
}
void
isa_attach_hook(device_t parent, device_t self, struct isabus_attach_args *iba)
{
}
void
isa_detach_hook(isa_chipset_tag_t ic, device_t self)
{
}
const struct evcnt *
isa_intr_evcnt(isa_chipset_tag_t ic, int irq)
{
/* XXX for now, no evcnt parent reported */
return NULL;
}
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