void
dec_550_intr_disestablish(void *ccv, void *cookie)
{
struct cia_config *ccp = ccv;
struct alpha_shared_intrhand *ih = cookie;
unsigned int irq = ih->ih_num;
int s;
#if NSIO
/*
* We have to determine if this is an ISA IRQ or not! We do this
* by checking to see if the intrhand points back to an intrhead
* that points to our cia_config. If not, it's an ISA IRQ. Pretty
* disgusting, eh?
*/
if (ih->ih_intrhead->intr_private != ccp) {
sio_intr_disestablish(NULL /*XXX*/, cookie);
return;
}
#endif
s = splhigh();
alpha_shared_intr_disestablish(dec_550_pci_intr, cookie,
"dec 550 irq");
if (alpha_shared_intr_isactive(dec_550_pci_intr, irq) == 0) {
dec_550_intr_disable(irq);
alpha_shared_intr_set_dfltsharetype(dec_550_pci_intr, irq,
IST_NONE);
scb_free(0x900 + SCB_IDXTOVEC(irq));
}
splx(s);
}
void
jensenio_eisa_intr_disestablish(void *v, void *cookie)
{
struct alpha_shared_intrhand *ih = cookie;
int s, irq = ih->ih_num;
s = splhigh();
/* Remove it from the link. */
alpha_shared_intr_disestablish(jensenio_eisa_intr, cookie,
"eisa irq");
if (JENSEN_IRQ_IS_EISA(irq) == 0) {
splx(s);
return;
}
if (alpha_shared_intr_isactive(jensenio_eisa_intr, irq) == 0) {
jensenio_enable_intr(irq, 0);
alpha_shared_intr_set_dfltsharetype(jensenio_eisa_intr,
irq, jensenio_intr_deftype[irq]);
}
splx(s);
}
void
sio_intr_disestablish(void *v, void *cookie)
{
struct alpha_shared_intrhand *ih = cookie;
int s, ist, irq = ih->ih_num;
s = splhigh();
/* Remove it from the link. */
alpha_shared_intr_disestablish(sio_intr, cookie, "isa irq");
/*
* Decide if we should disable the interrupt. We must ensure
* that:
*
* - An initially-enabled interrupt is never disabled.
* - An initially-LT interrupt is never untyped.
*/
if (alpha_shared_intr_isactive(sio_intr, irq) == 0) {
/*
* IRQs 0, 1, 8, and 13 must always be edge-triggered
* (see setup).
*/
switch (irq) {
case 0:
case 1:
case 8:
case 13:
/*
* If the interrupt was initially level-triggered
* a warning was printed in setup.
*/
ist = IST_EDGE;
break;
default:
ist = IST_NONE;
break;
}
sio_setirqstat(irq, 0, ist);
alpha_shared_intr_set_dfltsharetype(sio_intr, irq, ist);
/* Release our SCB vector. */
scb_free(0x800 + SCB_IDXTOVEC(irq));
}
splx(s);
}
void
dec_eb66_intr_disestablish(void *lcv, void *cookie)
{
struct alpha_shared_intrhand *ih = cookie;
unsigned int irq = ih->ih_num;
int s;
s = splhigh();
alpha_shared_intr_disestablish(eb66_pci_intr, cookie,
"eb66 irq");
if (alpha_shared_intr_isactive(eb66_pci_intr, irq) == 0) {
eb66_intr_disable(irq);
alpha_shared_intr_set_dfltsharetype(eb66_pci_intr, irq,
IST_NONE);
scb_free(0x900 + SCB_IDXTOVEC(irq));
}
splx(s);
}
void
jensenio_eisa_intr_disestablish(void *v, void *cookie)
{
struct alpha_shared_intrhand *ih = cookie;
int s, irq = ih->ih_num;
s = splhigh();
/* Remove it from the link. */
alpha_shared_intr_disestablish(jensenio_eisa_intr, cookie,
"eisa irq");
if (alpha_shared_intr_isactive(jensenio_eisa_intr, irq) == 0) {
jensenio_enable_intr(irq, 0);
alpha_shared_intr_set_dfltsharetype(jensenio_eisa_intr,
irq, jensenio_intr_deftype[irq]);
scb_free(0x800 + SCB_IDXTOVEC(irq));
}
splx(s);
}
