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Small update to SYS_IRQCTL -> setting an interrupt policy now allows the caller

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to provide an index (0 .. 31) that is passed in the HARD_INT message when an
interrupt occurs. The NOTIFY_ARG field contains a bitmap with all indexes for
which an interrupt occured.
This commit is contained in:
Jorrit Herder
2005-07-29 12:44:42 +00:00
parent bd8762263a
commit d62e515660
13 changed files with 45 additions and 10 deletions
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10
kernel/system/do_irqctl.c
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@@ -24,6 +24,7 @@ register message *m_ptr; /* pointer to request message */
/* Dismember the request message. */
int irq_vec;
int irq_hook_id;
int notify_id;
int r = OK;
irq_hook_t *hook_ptr;
@@ -65,8 +66,15 @@ register message *m_ptr; /* pointer to request message */
}
if (hook_ptr == NULL) return(ENOSPC);
/* Only caller can request IRQ mappings. Install handler. */
/* When setting a policy, the caller must provide an identifier that
* is returned on the notification message if a interrupt occurs.
*/
notify_id = (unsigned) m_ptr->IRQ_HOOK_ID;
if (notify_id > CHAR_BIT * sizeof(irq_id_t) - 1) return(EINVAL);
/* Install the handler. */
hook_ptr->proc_nr = m_ptr->m_source; /* process to notify */
hook_ptr->notify_id = notify_id; /* identifier to pass */
hook_ptr->policy = m_ptr->IRQ_POLICY; /* policy for interrupts */
put_irq_handler(hook_ptr, irq_vec, generic_handler);