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Rearrange the interrupt detection code to work on the (slightly 

different) VAXstation 4000/90.
This commit is contained in:
ragge 1999-08-27 17:45:57 +00:00
parent 2cd3c05799
commit 73dc3cea57
1 changed files with 38 additions and 16 deletions
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54
sys/arch/vax/vsa/vsbus.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: vsbus.c,v 1.18 1999/08/07 10:36:51 ragge Exp $ */
/* $NetBSD: vsbus.c,v 1.19 1999/08/27 17:45:57 ragge Exp $ */
/*
* Copyright (c) 1996 Ludd, University of Lule}, Sweden.
* All rights reserved.
@ -97,7 +97,12 @@ struct vax_bus_dma_tag vsbus_bus_dma_tag = {
struct vsbus_softc {
struct device sc_dev;
#if 0
volatile struct vs_cpu *sc_cpu;
#endif
u_char *sc_intmsk; /* Mask register */
u_char *sc_intclr; /* Clear interrupt register */
u_char *sc_intreq; /* Interrupt request register */
u_char sc_mask; /* Interrupts to enable after autoconf */
};
@ -112,7 +117,7 @@ vsbus_print(aux, name)
{
struct vsbus_attach_args *va = aux;
printf(" csr 0x%lx vec %o ipl %x maskbit %x", va->va_paddr,
printf(" csr 0x%lx vec %o ipl %x maskbit %d", va->va_paddr,
va->va_cvec & 511, va->va_br, va->va_maskno - 1);
return(UNCONF);
}
@ -134,10 +139,25 @@ vsbus_attach(parent, self, aux)
void *aux;
{
struct vsbus_softc *sc = (void *)self;
vaddr_t temp;
printf("\n");
sc->sc_cpu = (void *)vax_map_physmem(VS_REGS, 1);
switch (vax_boardtype) {
case VAX_BTYP_49:
temp = vax_map_physmem(0x25c00000, 1);
sc->sc_intreq = (char *)temp + 12;
sc->sc_intclr = (char *)temp + 12;
sc->sc_intmsk = (char *)temp + 8;
break;
default:
temp = vax_map_physmem(VS_REGS, 1);
sc->sc_intreq = (char *)temp + 15;
sc->sc_intclr = (char *)temp + 15;
sc->sc_intmsk = (char *)temp + 12;
break;
}
/*
* First: find which interrupts we won't care about.
@ -145,10 +165,10 @@ vsbus_attach(parent, self, aux)
* that we don't want to interfere with the rest of the
* interrupt probing.
*/
sc->sc_cpu->vc_intmsk = 0;
sc->sc_cpu->vc_intclr = 0xff;
*sc->sc_intmsk = 0;
*sc->sc_intclr = 0xff;
DELAY(1000000); /* Wait a second */
sc->sc_mask = sc->sc_cpu->vc_intreq;
sc->sc_mask = *sc->sc_intreq;
printf("%s: interrupt mask %x\n", self->dv_xname, sc->sc_mask);
/*
* now check for all possible devices on this "bus"
@ -156,7 +176,7 @@ vsbus_attach(parent, self, aux)
config_search(vsbus_search, self, NULL);
/* Autoconfig finished, enable interrupts */
sc->sc_cpu->vc_intmsk = ~sc->sc_mask;
*sc->sc_intmsk = ~sc->sc_mask;
}
int
@ -174,21 +194,23 @@ vsbus_search(parent, cf, aux)
va.va_addr = vax_map_physmem(va.va_paddr, 1);
va.va_dmat = &vsbus_bus_dma_tag;
sc->sc_cpu->vc_intmsk = 0;
sc->sc_cpu->vc_intclr = 0xff;
*sc->sc_intmsk = 0;
*sc->sc_intclr = 0xff;
scb_vecref(0, 0); /* Clear vector ref */
i = (*cf->cf_attach->ca_match) (parent, cf, &va);
vax_unmap_physmem(va.va_addr, 1);
c = sc->sc_cpu->vc_intreq & ~sc->sc_mask;
c = *sc->sc_intreq & ~sc->sc_mask;
if (i == 0)
goto forgetit;
if (i > 10)
c = sc->sc_mask; /* Fooling interrupt */
if (c == 0 || i == 0)
else if (c == 0)
goto forgetit;
sc->sc_cpu->vc_intmsk = c;
*sc->sc_intmsk = c;
DELAY(100);
sc->sc_cpu->vc_intmsk = 0;
*sc->sc_intmsk = 0;
va.va_maskno = ffs((u_int)c);
i = scb_vecref(&vec, &br);
if (i == 0)
@ -222,8 +244,8 @@ vsbus_setmask(mask)
struct vsbus_softc *sc = vsbus_cd.cd_devs[0];
unsigned char ch;
ch = sc->sc_cpu->vc_intmsk;
sc->sc_cpu->vc_intmsk = mask;
ch = *sc->sc_intmsk;
*sc->sc_intmsk = mask;
return ch;
}
@ -236,7 +258,7 @@ vsbus_clrintr(mask)
{
struct vsbus_softc *sc = vsbus_cd.cd_devs[0];
sc->sc_cpu->vc_intclr = mask;
*sc->sc_intclr = mask;
}
#ifdef notyet