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/* $NetBSD$ */
/*
* Copyright (c) 1995 Theo de Raadt
* 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 Theo de Raadt
* 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.
*/
/*
* VME16x PCC2 chip
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/tty.h>
#include <sys/uio.h>
#include <sys/callout.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/fcntl.h>
#include <sys/device.h>
#include <machine/cpu.h>
#include <machine/autoconf.h>
#include <dev/cons.h>
#include <mvme68k/mvme68k/isr.h>
#include <mvme68k/dev/pcctworeg.h>
struct pcctwosoftc {
struct device sc_dev;
caddr_t sc_vaddr;
caddr_t sc_paddr;
struct pcctworeg *sc_pcc2;
struct intrhand sc_nmiih;
};
void pcctwoattach __P((struct device *, struct device *, void *));
int pcctwomatch __P((struct device *, void *, void *));
int pcctwoabort __P((struct frame *));
struct cfdriver pcctwocd = {
NULL, "pcctwo", pcctwomatch, pcctwoattach,
DV_DULL, sizeof(struct pcctwosoftc), 0
};
struct pcctworeg *sys_pcc2 = NULL;
struct intrhand *pcctwointrs[PCC2_NVEC];
int
pcctwomatch(parent, vcf, args)
struct device *parent;
void *vcf, *args;
{
struct cfdata *cf = vcf;
struct confargs *ca = args;
struct pcctworeg *pcc2;
/* the PCC2 only exists on MVME16x's except the 162, right? */
if (cputyp == CPU_162 || cputyp == CPU_147)
return (0);
pcc2 = (struct pcctworeg *)(IIOV(ca->ca_paddr) + PCC2_PCC2CHIP_OFF);
if (badbaddr(pcc2))
return (0);
if (pcc2->pcc2_chipid != PCC2_CHIPID)
return (0);
return (1);
}
int
pcctwo_print(args, bus)
void *args;
char *bus;
{
struct confargs *ca = args;
printf(" offset 0x%x", ca->ca_offset);
if (ca->ca_ipl > 0)
printf(" ipl %d", ca->ca_ipl);
return (UNCONF);
}
int
pcctwo_scan(parent, child, args)
struct device *parent;
void *child, *args;
{
struct cfdata *cf = child;
struct pcctwosoftc *sc = (struct pcctwosoftc *)parent;
struct confargs *ca = args;
struct confargs oca;
if (parent->dv_cfdata->cf_driver->cd_indirect) {
printf(" indirect devices not supported\n");
return 0;
}
bzero(&oca, sizeof oca);
oca.ca_paddr = sc->sc_paddr + cf->cf_loc[0];
if (ISIIOVA(sc->sc_vaddr + cf->cf_loc[0]))
oca.ca_vaddr = sc->sc_vaddr + cf->cf_loc[0];
else
oca.ca_vaddr = (caddr_t)-1;
oca.ca_offset = cf->cf_loc[0];
oca.ca_ipl = cf->cf_loc[1];
oca.ca_bustype = BUS_PCCTWO;
oca.ca_master = (void *)sc->sc_pcc2;
oca.ca_name = cf->cf_driver->cd_name;
if ((*cf->cf_driver->cd_match)(parent, cf, &oca) == 0)
return (0);
config_attach(parent, cf, &oca, pcctwo_print);
return (1);
}
void
pcctwoattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct confargs *ca = args;
struct pcctwosoftc *sc = (struct pcctwosoftc *)self;
extern u_long vectab[], pcctwotrap;
int i;
if (sys_pcc2)
panic("pcc2 already attached!");
/*
* since we know ourself to land in intiobase land,
* we must adjust our address
*/
sc->sc_paddr = ca->ca_paddr;
sc->sc_vaddr = (caddr_t)IIOV(sc->sc_paddr);
sc->sc_pcc2 = (struct pcctworeg *)(sc->sc_vaddr + PCC2_PCC2CHIP_OFF);
sys_pcc2 = sc->sc_pcc2;
printf(": rev %d\n", sc->sc_pcc2->pcc2_chiprev);
/*
* make the PCCTWO interrupt range point to the pcc2 trap routine.
*/
for (i = 0; i < PCC2_NVEC; i++) {
vectab[PCC2_VECBASE+i] = (u_long)&pcctwotrap;
}
sc->sc_pcc2->pcc2_genctl |= PCC2_GENCTL_IEN; /* global irq enable */
sys_pcc2->pcc2_gpioirq = PCC2_GPIO_PLTY | PCC2_IRQ_IEN | 0x7;/*lvl7*/
sys_pcc2->pcc2_gpio = 0; /* do not turn on CR_O or CR_OE */
sc->sc_nmiih.ih_fn = pcctwoabort;
sc->sc_nmiih.ih_arg = 0;
sc->sc_nmiih.ih_lvl = 7;
sc->sc_nmiih.ih_wantframe = 1;
/*sc->sc_mc->mc_abort .... enable at ipl 7 */
pcctwointr_establish(PCC2V_GPIO, &sc->sc_nmiih);
sc->sc_pcc2->pcc2_vecbase = PCC2_VECBASE;
config_search(pcctwo_scan, self, args);
}
#ifndef PCCTWOINTR_ASM
/*
* pcctwointr: called from locore with the PC and evec from the trap frame.
*/
int
pcctwointr(pc, evec, frame)
int pc;
int evec;
void *frame;
{
int vec = (evec & 0xfff) >> 2; /* XXX should be m68k macro? */
extern u_long intrcnt[]; /* XXX from locore */
struct intrhand *ih;
int r;
vec = vec & 0xf;
if (vec >= PCC2_NVEC)
goto bail;
cnt.v_intr++;
for (ih = pcctwointrs[vec]; ih; ih = ih->ih_next) {
if (ih->ih_wantframe)
r = (*ih->ih_fn)(frame);
else
r = (*ih->ih_fn)(ih->ih_arg);
if (r > 0)
return;
}
bail:
return (straytrap(pc, evec));
}
#endif /* !PCCTWOINTR_ASM */
/*
* pcctwointr_establish: establish pcctwo interrupt
*/
int
pcctwointr_establish(vec, ih)
int vec;
struct intrhand *ih;
{
if (vec >= PCC2_NVEC) {
printf("pcctwo: illegal vector: 0x%x\n", vec);
panic("pcctwointr_establish");
}
/* XXX should attach at tail */
ih->ih_next = pcctwointrs[vec];
pcctwointrs[vec] = ih;
}
int
pcctwoabort(frame)
struct frame *frame;
{
#ifdef REALLY_CARE_ABOUT_DEBOUNCE
/* wait for it to debounce */
while (sys_pcc2->pcc2_abortirq & PCC2_ABORT_ABS)
;
#endif
sys_pcc2->pcc2_gpioirq = sys_pcc2->pcc2_gpioirq | PCC2_IRQ_ICLR;
nmihand(frame);
return (1);
}
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