-/* $Id: parport_share.c,v 1.15 1998/01/11 12:06:17 philip Exp $
+/*
* Parallel-port resource manager code.
*
* Authors: David Campbell <campbell@tirian.che.curtin.edu.au>
struct pardevice *
parport_register_device(struct parport *port, const char *name,
int (*pf)(void *), void (*kf)(void *),
- void (*irq_func)(int, void *),
+ void (*irq_func)(void *),
int flags, void *handle)
{
struct pardevice *tmp;
* pardevice fields. -arca
*/
port->ops->init_state(tmp, tmp->state);
- parport_device_proc_register(tmp);
+ if (!test_and_set_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags)) {
+ port->proc_device = tmp;
+ parport_device_proc_register(tmp);
+ }
return tmp;
out_free_all:
}
#endif
- parport_device_proc_unregister(dev);
-
port = dev->port->physport;
+ if (port->proc_device == dev) {
+ port->proc_device = NULL;
+ clear_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags);
+ parport_device_proc_unregister(dev);
+ }
+
if (port->cad == dev) {
printk(KERN_DEBUG "%s: %s forgot to release port\n",
port->name, dev->name);
}
}
+irqreturn_t parport_irq_handler(int irq, void *dev_id)
+{
+ struct parport *port = dev_id;
+
+ parport_generic_irq(port);
+
+ return IRQ_HANDLED;
+}
+
/* Exported symbols for modules. */
EXPORT_SYMBOL(parport_claim);
EXPORT_SYMBOL(parport_put_port);
EXPORT_SYMBOL(parport_find_number);
EXPORT_SYMBOL(parport_find_base);
+EXPORT_SYMBOL(parport_irq_handler);
MODULE_LICENSE("GPL");