/* $NetBSD: ioasic.c,v 1.23 2020/09/03 06:42:29 simonb Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Keith Bostic, Chris G. Demetriou, Jonathan Stone
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: ioasic.c,v 1.23 2020/09/03 06:42:29 simonb Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/tc/tcvar.h>
#include <dev/tc/ioasicreg.h>
#include <dev/tc/ioasicvar.h>
#include <pmax/sysconf.h>
#include <pmax/pmax/pmaxtype.h>
#include <pmax/pmax/kmin.h>
#include <pmax/pmax/maxine.h>
#include <pmax/pmax/kn03.h>
#include "opt_dec_3min.h"
#include "opt_dec_maxine.h"
#include "opt_dec_3maxplus.h"
#define ARRAY_SIZEOF(x) (sizeof((x)) / sizeof((x)[0]))
#if defined(DEC_3MIN)
static struct ioasic_dev kmin_ioasic_devs[] = {
{ "PMAD-BA ", 0x0C0000, C(SYS_DEV_LANCE), },
{ "scc", 0x100000, C(SYS_DEV_SCC0), },
{ "scc", 0x180000, C(SYS_DEV_SCC1), },
{ "mc146818", 0x200000, C(SYS_DEV_BOGUS), },
{ "asc", 0x300000, C(SYS_DEV_SCSI), },
};
static int kmin_builtin_ndevs = ARRAY_SIZEOF(kmin_ioasic_devs);
static int kmin_ioasic_ndevs = ARRAY_SIZEOF(kmin_ioasic_devs);
#endif
#if defined(DEC_MAXINE)
static struct ioasic_dev xine_ioasic_devs[] = {
{ "PMAD-BA ", 0x0C0000, C(SYS_DEV_LANCE), },
{ "scc", 0x100000, C(SYS_DEV_SCC0), },
{ "mc146818", 0x200000, C(SYS_DEV_BOGUS), },
{ "isdn", 0x240000, C(SYS_DEV_ISDN), },
{ "dtop", 0x280000, C(SYS_DEV_DTOP), },
{ "fdc", 0x2C0000, C(SYS_DEV_FDC), },
{ "asc", 0x300000, C(SYS_DEV_SCSI), },
{ "(TC0)", 0x0, C(SYS_DEV_OPT0), },
{ "(TC1)", 0x0, C(SYS_DEV_OPT1), },
{ "(TC2)", 0x0, C(SYS_DEV_OPT2), },
};
static int xine_builtin_ndevs = ARRAY_SIZEOF(xine_ioasic_devs) - 3;
static int xine_ioasic_ndevs = ARRAY_SIZEOF(xine_ioasic_devs);
#endif
#if defined(DEC_3MAXPLUS)
static struct ioasic_dev kn03_ioasic_devs[] = {
{ "PMAD-BA ", 0x0C0000, C(SYS_DEV_LANCE), },
{ "z8530 ", 0x100000, C(SYS_DEV_SCC0), },
{ "z8530 ", 0x180000, C(SYS_DEV_SCC1), },
{ "mc146818", 0x200000, C(SYS_DEV_BOGUS), },
{ "asc", 0x300000, C(SYS_DEV_SCSI), },
{ "(TC0)", 0x0, C(SYS_DEV_OPT0), },
{ "(TC1)", 0x0, C(SYS_DEV_OPT1), },
{ "(TC2)", 0x0, C(SYS_DEV_OPT2), },
};
static int kn03_builtin_ndevs = ARRAY_SIZEOF(kn03_ioasic_devs) - 3;
static int kn03_ioasic_ndevs = ARRAY_SIZEOF(kn03_ioasic_devs);
#endif
static int ioasicmatch(device_t, cfdata_t, void *);
static void ioasicattach(device_t, device_t, void *);
CFATTACH_DECL_NEW(ioasic, sizeof(struct ioasic_softc),
ioasicmatch, ioasicattach, NULL, NULL);
tc_addr_t ioasic_base; /* XXX XXX XXX */
/* There can be only one. */
int ioasicfound;
static int
ioasicmatch(device_t parent, cfdata_t cfdata, void *aux)
{
struct tc_attach_args *ta = aux;
/* Make sure that we're looking for this type of device. */
if (strncmp("IOCTL ", ta->ta_modname, TC_ROM_LLEN))
return (0);
if (ioasicfound)
return (0);
return (1);
}
static void
ioasicattach(device_t parent, device_t self, void *aux)
{
struct ioasic_softc *sc = device_private(self);
struct tc_attach_args *ta = aux;
struct ioasic_dev *ioasic_devs;
int ioasic_ndevs, builtin_ndevs;
ioasicfound = 1;
sc->sc_dev = self;
sc->sc_bst = ta->ta_memt;
/*
* XXX
* The TC device addresses are defined in KSEG1, but this
* confuses bus_space(9) which expects bus addresses and
* not kernel virtual addresses. Pull the addresses back
* to bus addresses with MIPS_KSEG1_TO_PHYS().
*/
if (bus_space_map(ta->ta_memt, MIPS_KSEG1_TO_PHYS(ta->ta_addr),
0x400000, 0, &sc->sc_bsh)) {
printf("%s: unable to map device\n", device_xname(self));
return;
}
sc->sc_dmat = ta->ta_dmat;
sc->sc_base = ta->ta_addr; /* XXX XXX XXX */
printf("\n");
switch (systype) {
#if defined(DEC_3MIN)
case DS_3MIN:
ioasic_devs = kmin_ioasic_devs;
ioasic_ndevs = kmin_ioasic_ndevs;
builtin_ndevs = kmin_builtin_ndevs;
break;
#endif
#if defined(DEC_MAXINE)
case DS_MAXINE:
ioasic_devs = xine_ioasic_devs;
ioasic_ndevs = xine_ioasic_ndevs;
builtin_ndevs = xine_builtin_ndevs;
break;
#endif
#if defined(DEC_3MAXPLUS)
case DS_3MAXPLUS:
ioasic_devs = kn03_ioasic_devs;
ioasic_ndevs = kn03_ioasic_ndevs;
builtin_ndevs = kn03_builtin_ndevs;
break;
#endif
default:
panic("ioasicmatch: how did we get here?");
}
#if 0 /* IMSK has been sanitized */
/*
* Turn off all device interrupt bits.
* (This _does_ include TC option slot bits.)
*/
imsk = bus_space_read_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK);
for (i = 0; i < ioasic_ndevs; i++)
imsk &= ~ioasic_devs[i].iad_intrbits;
bus_space_write_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK, imsk);
#else
__USE(ioasic_ndevs);
#endif
/*
* Try to configure each device.
*/
ioasic_attach_devs(sc, ioasic_devs, builtin_ndevs);
}
const struct evcnt *
ioasic_intr_evcnt(device_t dev, void *cookie)
{
/* XXX for now, no evcnt parent reported */
return NULL;
}
void
ioasic_intr_establish(device_t dev, void *cookie, int level,
int (*handler)(void *), void *val)
{
(*platform.intr_establish)(dev, cookie, level, handler, val);
}