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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /trunk/kernel/generic/src/ipc/irq.c @ 4273

  → /trunk/kernel/generic/src/ipc/irq.c @ 4274

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 4273 → Rev 4274

/trunk/kernel/generic/src/ipc/irq.c
128,13 → 128,14
/** Register an answerbox as a receiving end for IRQ notifications.
*
* @param box Receiving answerbox.
* @param inr IRQ number.
* @param devno Device number.
* @param method Method to be associated with the notification.
* @param ucode Uspace pointer to top-half pseudocode.
* @param box Receiving answerbox.
* @param inr IRQ number.
* @param devno Device number.
* @param method Method to be associated with the notification.
* @param ucode Uspace pointer to top-half pseudocode.
*
* @return EBADMEM, ENOENT or EEXISTS on failure or 0 on success.
* @return EBADMEM, ENOENT or EEXISTS on failure or 0 on success.
*
*/
int ipc_irq_register(answerbox_t *box, inr_t inr, devno_t devno,
unative_t method, irq_code_t *ucode)
147,7 → 148,7
(unative_t) inr,
(unative_t) devno
};
if (ucode) {
code = code_from_uspace(ucode);
if (!code)
155,7 → 156,7
} else {
code = NULL;
}
/*
* Allocate and populate the IRQ structure.
*/
170,7 → 171,7
irq->notif_cfg.method = method;
irq->notif_cfg.code = code;
irq->notif_cfg.counter = 0;
/*
* Enlist the IRQ structure in the uspace IRQ hash table and the
* answerbox's list.
179,7 → 180,9
spinlock_lock(&irq_uspace_hash_table_lock);
hlp = hash_table_find(&irq_uspace_hash_table, key);
if (hlp) {
irq_t *hirq = hash_table_get_instance(hlp, irq_t, link);
irq_t *hirq __attribute__((unused))
= hash_table_get_instance(hlp, irq_t, link);
/* hirq is locked */
spinlock_unlock(&hirq->lock);
code_free(code);
188,7 → 191,8
interrupts_restore(ipl);
return EEXISTS;
}
spinlock_lock(&irq->lock); /* not really necessary, but paranoid */
spinlock_lock(&irq->lock); /* Not really necessary, but paranoid */
spinlock_lock(&box->irq_lock);
hash_table_insert(&irq_uspace_hash_table, key, &irq->link);
list_append(&irq->notif_cfg.link, &box->irq_head);
195,7 → 199,7
spinlock_unlock(&box->irq_lock);
spinlock_unlock(&irq->lock);
spinlock_unlock(&irq_uspace_hash_table_lock);
interrupts_restore(ipl);
return EOK;
}