int __init init_module(void)
{
init_timer(&timer);
timer.function = timer_fun;
mod_timer(&timer, jiffies + ECHO_PERIOD*HZ);
xnintr_init(&intr, 0, isr, NULL, 0);
xnintr_attach(&intr, &intr);
return 0;
}
int rt_intr_create(RT_INTR *intr,
const char *name,
unsigned irq, rt_isr_t isr, rt_iack_t iack, int mode)
{
int err;
spl_t s;
if (xnpod_asynch_p())
return -EPERM;
if (name)
xnobject_copy_name(intr->name, name);
else
/* Kernel-side "anonymous" objects (name == NULL) get unique names.
* Nevertheless, they will not be exported via the registry. */
xnobject_create_name(intr->name, sizeof(intr->name), isr);
xnintr_init(&intr->intr_base, intr->name, irq, isr, iack, mode);
#ifdef CONFIG_XENO_OPT_PERVASIVE
xnsynch_init(&intr->synch_base, XNSYNCH_PRIO, NULL);
intr->pending = 0;
intr->cpid = 0;
intr->mode = 0;
#endif /* CONFIG_XENO_OPT_PERVASIVE */
intr->magic = XENO_INTR_MAGIC;
intr->handle = 0; /* i.e. (still) unregistered interrupt. */
inith(&intr->rlink);
intr->rqueue = &xeno_get_rholder()->intrq;
xnlock_get_irqsave(&nklock, s);
appendq(intr->rqueue, &intr->rlink);
xnlock_put_irqrestore(&nklock, s);
err = xnintr_attach(&intr->intr_base, intr);
/*
* <!> Since xnregister_enter() may reschedule, only register
* complete objects, so that the registry cannot return
* handles to half-baked objects...
*/
if (!err && name)
err = xnregistry_enter(intr->name, intr, &intr->handle,
&__intr_pnode);
if (err)
rt_intr_delete(intr);
return err;
}
