NetBSD/sys/arch/pmax/tc/tcbus.c

256 lines
7.0 KiB
C

/* $NetBSD: tcbus.c,v 1.7 2000/01/14 13:45:28 simonb Exp $ */
/*
* Copyright (c) 1999 Tohru Nishimura. 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 Tohru Nishimura
* for the NetBSD Project.
* 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> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: tcbus.c,v 1.7 2000/01/14 13:45:28 simonb Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/sysconf.h>
#define _PMAX_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <dev/tc/tcvar.h>
#include <pmax/pmax/pmaxtype.h>
/*
* Which system models were configured?
*/
#include "opt_dec_3max.h"
#include "opt_dec_3min.h"
#include "opt_dec_maxine.h"
#include "opt_dec_3maxplus.h"
/* XXX XXX TO BE REMOVED XXX XXX */
/*
* DECstation tc implementations dont' have a tcasic to handle interrupts,
* and the mapping to CPU interrupt lines is model-dependent.
* We have to pass TC interrupt establish/disestablish requests up to
* motherboard-specific code.
*/
static void tc_ds_intr_establish __P((struct device *, void *,
int, int (*)(void *), void *));
static void tc_ds_intr_disestablish __P((struct device *, void *));
/* XXX XXX XXX XXX XXX XXX XXX */
static bus_dma_tag_t tc_ds_get_dma_tag __P((int));
extern struct tcbus_attach_args kn02_tc_desc[]; /* XXX */
extern struct tcbus_attach_args kmin_tc_desc[]; /* XXX */
extern struct tcbus_attach_args xine_tc_desc[]; /* XXX */
extern struct tcbus_attach_args kn03_tc_desc[]; /* XXX */
static int tcbus_match __P((struct device *, struct cfdata *, void *));
static void tcbus_attach __P((struct device *, struct device *, void *));
struct cfattach tcbus_ca = {
sizeof(struct tc_softc), tcbus_match, tcbus_attach,
};
static int tcbus_found;
int
tcbus_match(parent, cfdata, aux)
struct device *parent;
struct cfdata *cfdata;
void *aux;
{
struct mainbus_attach_args *ma = aux;
if (tcbus_found || strcmp(ma->ma_name, "tcbus"))
return 0;
return 1;
}
void
tcbus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct tcbus_attach_args *tba;
tcbus_found = 1;
switch (systype) {
#ifdef DEC_3MAX
case DS_3MAX:
tba = &kn02_tc_desc[0]; break;
#endif
#ifdef DEC_3MIN
case DS_3MIN:
tba = &kmin_tc_desc[0]; break;
#endif
#ifdef DEC_MAXINE
case DS_MAXINE:
tba = &xine_tc_desc[0]; break;
#endif
#ifdef DEC_3MAXPLUS
case DS_3MAXPLUS:
tba = &kn03_tc_desc[0]; break;
#endif
default:
panic("tcbus_attach: no TURBOchannel configured for systype = %d", systype);
}
tba->tba_busname = "tc";
tba->tba_memt = 0;
tba->tba_intr_establish = tc_ds_intr_establish;
tba->tba_intr_disestablish = tc_ds_intr_disestablish;
tba->tba_get_dma_tag = tc_ds_get_dma_tag;
tcattach(parent, self, tba);
}
/*
* Return the DMA tag for use by the specified TURBOchannel slot.
*/
static bus_dma_tag_t
tc_ds_get_dma_tag(slot)
int slot;
{
/*
* All DECstations use the default DMA tag.
*/
return (&pmax_default_bus_dma_tag);
}
/*
* Establish an interrupt handler.
* For both TC and IOCTL asic, we must upcall to motherboard-specific
* interrupt-hanlder functions, in case we need to recompute masks for
* CPU interrupt lines.
*/
static void
tc_ds_intr_establish(dev, cookie, level, handler, val)
struct device *dev;
void *cookie;
int level;
int (*handler) __P((void *));
void *val;
{
#ifdef DEBUG
printf("tc_ds_intr_establish: slot %d level %d handler %p sc %p on\n",
(int) cookie, (int) level, handler, val);
#endif
/*
* Enable the interrupt from tc (or ioctl asic) slot with NetBSD/pmax
* sw-convention name ``cookie'' on this CPU.
* XXX store the level somewhere for selective enabling of
* interrupts from TC option slots.
*/
(*platform.intr_establish)(dev, cookie, level, handler, val);
}
static void
tc_ds_intr_disestablish(dev, arg)
struct device *dev;
void *arg;
{
/*(*platform.intr_disestablish)(dev, cookie, level, handler, val);*/
printf("cannot dis-establish IOASIC interrupts\n");
}
#include "rasterconsole.h"
#if NRASTERCONSOLE > 0
#include "mfb.h"
#include "cfb.h"
#include "sfb.h"
#include "px.h"
#include <machine/fbio.h>
#include <machine/fbvar.h>
#include <pmax/dev/cfbvar.h>
#include <pmax/dev/mfbvar.h>
#include <machine/pmioctl.h> /* XXX shouldn't need this here for pxvar.h */
#include <pmax/dev/fbreg.h> /* XXX shouldn't need this here for pxvar.h */
#include <pmax/dev/pxreg.h> /* XXX shouldn't need this here for pxvar.h */
#include <pmax/dev/pxvar.h>
#include <pmax/dev/sfbvar.h>
#include <machine/dec_prom.h>
int
tcfb_cnattach(slotno)
int slotno;
{
tc_addr_t tcaddr;
char tcname[TC_ROM_LLEN];
struct fbinfo *fi;
tcaddr = (*callv->_slot_address)(slotno);
if (tc_badaddr(tcaddr) || tc_checkslot(tcaddr, tcname) == 0)
panic("TC console designated by PROM does not exist!?");
#if NSFB > 0
if (strncmp("PMAGB-BA", tcname, TC_ROM_LLEN) == 0) {
fballoc((caddr_t)tcaddr, &fi);
sfbinit(fi, (caddr_t)tcaddr, 0, 1);
return 1;
}
#endif
#if NCFB > 0
if (strncmp("PMAG-BA ", tcname, TC_ROM_LLEN) == 0) {
fballoc((caddr_t)tcaddr, &fi);
cfbinit(fi, (caddr_t)tcaddr, 0, 1);
return 1;
}
#endif
#if NMFB > 0
if (strncmp("PMAG-AA ", tcname, TC_ROM_LLEN) == 0) {
fballoc((caddr_t)tcaddr, &fi);
mfbinit(fi, (caddr_t)tcaddr, 0, 1);
return 1;
}
#endif
#if NPX > 0
if (strncmp("PMAG-CA ", tcname, TC_ROM_LLEN) == 0
|| strncmp("PMAG-DA ", tcname, TC_ROM_LLEN) == 0
|| strncmp("PMAG-FA ", tcname, TC_ROM_LLEN) == 0) {
fballoc((caddr_t)tcaddr, &fi);
px_init(fi, (caddr_t)tcaddr, 0, 1);
return 1;
}
#endif
return 0;
}
#endif