static void
update_masks(intrmask_t *maskptr, int irq)
{
intrmask_t mask = 1 << irq;
if (maskptr == NULL)
return;
if (find_idesc(maskptr, irq) == NULL) {
/* no reference to this maskptr was found in this irq's chain */
if ((*maskptr & mask) == 0)
return;
/* the irq was included in the classes mask, remove it */
INTRUNMASK(*maskptr, mask);
} else {
/* a reference to this maskptr was found in this irq's chain */
if ((*maskptr & mask) != 0)
return;
/* put the irq into the classes mask */
INTRMASK(*maskptr, mask);
}
/* we need to update all values in the intr_mask[irq] array */
update_intr_masks();
/* update mask in chains of the interrupt multiplex handler as well */
update_mux_masks();
}
/*
* disable_slot - Disables the slot by removing
* the power and unmapping the I/O
*/
static void
disable_slot(struct slot *sp)
{
int i;
struct pccard_dev *devp;
/*
* Unload all the drivers on this slot. Note we can't
* call remove_device from here, because this may be called
* from the event routine, which is called from the slot
* controller's ISR, and this could remove the device
* structure out in the middle of some driver activity.
*
* Note that a race condition is possible here; if a
* driver is accessing the device and it is removed, then
* all bets are off...
*/
for (devp = sp->devices; devp; devp = devp->next) {
if (devp->running) {
int s = splhigh();
devp->drv->unload(devp);
devp->running = 0;
if (devp->isahd.id_irq && --sp->irqref == 0) {
printf("Return IRQ=%d\n",sp->irq);
sp->ctrl->mapirq(sp, 0);
INTRDIS(1<<sp->irq);
unregister_intr(sp->irq, slot_irq_handler);
if (devp->drv->imask)
INTRUNMASK(*devp->drv->imask,(1<<sp->irq));
sp->irq = 0;
}
splx(s);
}
}
/* Power off the slot 1/2 second after remove of the card */
timeout(power_off_slot, (caddr_t)sp, hz / 2);
sp->pwr_off_pending = 1;
/* De-activate all contexts. */
for (i = 0; i < sp->ctrl->maxmem; i++)
if (sp->mem[i].flags & MDF_ACTIVE) {
sp->mem[i].flags = 0;
(void)sp->ctrl->mapmem(sp, i);
}
for (i = 0; i < sp->ctrl->maxio; i++)
if (sp->io[i].flags & IODF_ACTIVE) {
sp->io[i].flags = 0;
(void)sp->ctrl->mapio(sp, i);
}
}
