static void
eb164_intr_init()
{
/*
* Enable ISA-PCI cascade interrupt.
*/
eb164_intr_enable(4);
}
void
pci_eb164_pickintr(struct cia_config *ccp)
{
bus_space_tag_t iot = &ccp->cc_iot;
pci_chipset_tag_t pc = &ccp->cc_pc;
char *cp;
int i;
pc->pc_intr_v = ccp;
pc->pc_intr_map = dec_eb164_intr_map;
pc->pc_intr_string = dec_eb164_intr_string;
pc->pc_intr_evcnt = dec_eb164_intr_evcnt;
pc->pc_intr_establish = dec_eb164_intr_establish;
pc->pc_intr_disestablish = dec_eb164_intr_disestablish;
pc->pc_pciide_compat_intr_establish =
dec_eb164_pciide_compat_intr_establish;
eb164_intrgate_iot = iot;
if (bus_space_map(eb164_intrgate_iot, 0x804, 3, 0,
&eb164_intrgate_ioh) != 0)
panic("pci_eb164_pickintr: couldn't map interrupt PLD");
for (i = 0; i < EB164_MAX_IRQ; i++)
eb164_intr_disable(i);
#define PCI_EB164_IRQ_STR 8
eb164_pci_intr = alpha_shared_intr_alloc(EB164_MAX_IRQ,
PCI_EB164_IRQ_STR);
for (i = 0; i < EB164_MAX_IRQ; i++) {
/*
* Systems with a Pyxis seem to have problems with
* stray interrupts, so just ignore them. Sigh,
* I hate buggy hardware.
*/
alpha_shared_intr_set_maxstrays(eb164_pci_intr, i,
(ccp->cc_flags & CCF_ISPYXIS) ? 0 : PCI_STRAY_MAX);
cp = alpha_shared_intr_string(eb164_pci_intr, i);
snprintf(cp, PCI_EB164_IRQ_STR, "irq %d", i);
evcnt_attach_dynamic(alpha_shared_intr_evcnt(
eb164_pci_intr, i), EVCNT_TYPE_INTR, NULL,
"eb164", cp);
}
#if NSIO
sio_intr_setup(pc, iot);
eb164_intr_enable(EB164_SIO_IRQ);
#endif
}
void *
dec_eb164_intr_establish(void *ccv, pci_intr_handle_t ih, int level, int (*func)(void *), void *arg)
{
#if 0
struct cia_config *ccp = ccv;
#endif
void *cookie;
if (ih > EB164_MAX_IRQ)
panic("dec_eb164_intr_establish: bogus eb164 IRQ 0x%lx", ih);
cookie = alpha_shared_intr_establish(eb164_pci_intr, ih, IST_LEVEL,
level, func, arg, "eb164 irq");
if (cookie != NULL &&
alpha_shared_intr_firstactive(eb164_pci_intr, ih)) {
scb_set(0x900 + SCB_IDXTOVEC(ih), eb164_iointr, NULL,
level);
eb164_intr_enable(ih);
}
return (cookie);
}
