104 static void attach_driver_chain(struct parport *port)  in attach_driver_chain()  argument
109 		drv->attach(port);  in attach_driver_chain()
113 static void detach_driver_chain(struct parport *port)  in detach_driver_chain()  argument
118 		drv->detach (port);  in detach_driver_chain()
156 	struct parport *port;  in parport_register_driver()  local
162 	list_for_each_entry(port, &portlist, list)  in parport_register_driver()
163 		drv->attach(port);  in parport_register_driver()
189 	struct parport *port;  in parport_unregister_driver()  local
193 	list_for_each_entry(port, &portlist, list)  in parport_unregister_driver()
194 		drv->detach(port);  in parport_unregister_driver()
198 static void free_port (struct parport *port)  in free_port()  argument
202 	list_del(&port->full_list);  in free_port()
205 		kfree(port->probe_info[d].class_name);  in free_port()
206 		kfree(port->probe_info[d].mfr);  in free_port()
207 		kfree(port->probe_info[d].model);  in free_port()
208 		kfree(port->probe_info[d].cmdset);  in free_port()
209 		kfree(port->probe_info[d].description);  in free_port()
212 	kfree(port->name);  in free_port()
213 	kfree(port);  in free_port()
224 struct parport *parport_get_port (struct parport *port)  in parport_get_port()  argument
226 	atomic_inc (&port->ref_count);  in parport_get_port()
227 	return port;  in parport_get_port()
238 void parport_put_port (struct parport *port)  in parport_put_port()  argument
240 	if (atomic_dec_and_test (&port->ref_count))  in parport_put_port()
242 		free_port (port);  in parport_put_port()
358 void parport_announce_port (struct parport *port)  in parport_announce_port()  argument
364 	parport_daisy_init(port);  in parport_announce_port()
367 	if (!port->dev)  in parport_announce_port()
370 				port->name);  in parport_announce_port()
372 	parport_proc_register(port);  in parport_announce_port()
375 	list_add_tail(&port->list, &portlist);  in parport_announce_port()
377 		struct parport *slave = port->slaves[i-1];  in parport_announce_port()
384 	attach_driver_chain (port);  in parport_announce_port()
386 		struct parport *slave = port->slaves[i-1];  in parport_announce_port()
412 void parport_remove_port(struct parport *port)  in parport_remove_port()  argument
419 	detach_driver_chain (port);  in parport_remove_port()
423 	parport_daisy_fini(port);  in parport_remove_port()
425 		struct parport *slave = port->slaves[i-1];  in parport_remove_port()
433 	port->ops = &dead_ops;  in parport_remove_port()
435 	list_del_init(&port->list);  in parport_remove_port()
437 		struct parport *slave = port->slaves[i-1];  in parport_remove_port()
445 	parport_proc_unregister(port);  in parport_remove_port()
448 		struct parport *slave = port->slaves[i-1];  in parport_remove_port()
524 parport_register_device(struct parport *port, const char *name,  in parport_register_device()  argument
531 	if (port->physport->flags & PARPORT_FLAG_EXCL) {  in parport_register_device()
534 			port->name);  in parport_register_device()
540 …printk(KERN_INFO "%s: refused to register lurking device (%s) without callbacks\n", port->name, na…  in parport_register_device()
550 	if (!try_module_get(port->ops->owner)) {  in parport_register_device()
554 	parport_get_port (port);  in parport_register_device()
558 		printk(KERN_WARNING "%s: memory squeeze, couldn't register %s.\n", port->name, name);  in parport_register_device()
564 		printk(KERN_WARNING "%s: memory squeeze, couldn't register %s.\n", port->name, name);  in parport_register_device()
569 	tmp->port = port;  in parport_register_device()
585 	spin_lock(&port->physport->pardevice_lock);  in parport_register_device()
588 		if (port->physport->devices) {  in parport_register_device()
589 			spin_unlock (&port->physport->pardevice_lock);  in parport_register_device()
592 				"device %s\n", port->name, name);  in parport_register_device()
595 		port->flags |= PARPORT_FLAG_EXCL;  in parport_register_device()
598 	tmp->next = port->physport->devices;  in parport_register_device()
602 	if (port->physport->devices)  in parport_register_device()
603 		port->physport->devices->prev = tmp;  in parport_register_device()
604 	port->physport->devices = tmp;  in parport_register_device()
605 	spin_unlock(&port->physport->pardevice_lock);  in parport_register_device()
615 	port->ops->init_state(tmp, tmp->state);  in parport_register_device()
616 	if (!test_and_set_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags)) {  in parport_register_device()
617 		port->proc_device = tmp;  in parport_register_device()
627 	parport_put_port (port);  in parport_register_device()
628 	module_put(port->ops->owner);  in parport_register_device()
642 	struct parport *port;  in parport_unregister_device()  local
651 	port = dev->port->physport;  in parport_unregister_device()
653 	if (port->proc_device == dev) {  in parport_unregister_device()
654 		port->proc_device = NULL;  in parport_unregister_device()
655 		clear_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags);  in parport_unregister_device()
659 	if (port->cad == dev) {  in parport_unregister_device()
661 		       port->name, dev->name);  in parport_unregister_device()
665 	spin_lock(&port->pardevice_lock);  in parport_unregister_device()
671 		port->devices = dev->next;  in parport_unregister_device()
674 		port->flags &= ~PARPORT_FLAG_EXCL;  in parport_unregister_device()
676 	spin_unlock(&port->pardevice_lock);  in parport_unregister_device()
680 	spin_lock_irq(&port->waitlist_lock);  in parport_unregister_device()
681 	if (dev->waitprev || dev->waitnext || port->waithead == dev) {  in parport_unregister_device()
685 			port->waithead = dev->waitnext;  in parport_unregister_device()
689 			port->waittail = dev->waitprev;  in parport_unregister_device()
691 	spin_unlock_irq(&port->waitlist_lock);  in parport_unregister_device()
696 	module_put(port->ops->owner);  in parport_unregister_device()
697 	parport_put_port (port);  in parport_unregister_device()
714 	struct parport *port, *result = NULL;  in parport_find_number()  local
720 	list_for_each_entry(port, &portlist, list) {  in parport_find_number()
721 		if (port->number == number) {  in parport_find_number()
722 			result = parport_get_port (port);  in parport_find_number()
744 	struct parport *port, *result = NULL;  in parport_find_base()  local
750 	list_for_each_entry(port, &portlist, list) {  in parport_find_base()
751 		if (port->base == base) {  in parport_find_base()
752 			result = parport_get_port (port);  in parport_find_base()
775 	struct parport *port = dev->port->physport;  in parport_claim()  local
778 	if (port->cad == dev) {  in parport_claim()
780 		       dev->port->name,dev->name);  in parport_claim()
785 	write_lock_irqsave (&port->cad_lock, flags);  in parport_claim()
786 	if ((oldcad = port->cad) != NULL) {  in parport_claim()
790 			port->ops->save_state(port, dev->state);  in parport_claim()
794 		if (port->cad != oldcad) {  in parport_claim()
799 			       port->name, oldcad->name);  in parport_claim()
800 			if (port->cad)  in parport_claim()
810 		spin_lock_irq (&port->waitlist_lock);  in parport_claim()
814 			port->waithead = dev->waitnext;  in parport_claim()
818 			port->waittail = dev->waitprev;  in parport_claim()
819 		spin_unlock_irq (&port->waitlist_lock);  in parport_claim()
824 	port->cad = dev;  in parport_claim()
828 	if (dev->port->muxport >= 0) {  in parport_claim()
830 		port->muxsel = dev->port->muxport;  in parport_claim()
836 		if (!parport_daisy_select (port, dev->daisy,  in parport_claim()
838 			port->daisy = dev->daisy;  in parport_claim()
843 	port->ops->restore_state(port, dev->state);  in parport_claim()
844 	write_unlock_irqrestore(&port->cad_lock, flags);  in parport_claim()
855 		spin_lock (&port->waitlist_lock);  in parport_claim()
859 			dev->waitprev = port->waittail;  in parport_claim()
860 			if (port->waittail) {  in parport_claim()
861 				port->waittail->waitnext = dev;  in parport_claim()
862 				port->waittail = dev;  in parport_claim()
864 				port->waithead = port->waittail = dev;  in parport_claim()
866 		spin_unlock (&port->waitlist_lock);  in parport_claim()
868 	write_unlock_irqrestore (&port->cad_lock, flags);  in parport_claim()
923 		if (dev->port->physport->cad != dev)  in parport_claim_or_block()
926 			       dev->port->physport->cad ?  in parport_claim_or_block()
927 			       dev->port->physport->cad->name:"nobody");  in parport_claim_or_block()
945 	struct parport *port = dev->port->physport;  in parport_release()  local
950 	write_lock_irqsave(&port->cad_lock, flags);  in parport_release()
951 	if (port->cad != dev) {  in parport_release()
952 		write_unlock_irqrestore (&port->cad_lock, flags);  in parport_release()
954 		       "when not owner\n", port->name, dev->name);  in parport_release()
960 	if (dev->port->muxport >= 0) {  in parport_release()
962 		port->muxsel = -1;  in parport_release()
967 		parport_daisy_deselect_all (port);  in parport_release()
968 		port->daisy = -1;  in parport_release()
972 	port->cad = NULL;  in parport_release()
973 	write_unlock_irqrestore(&port->cad_lock, flags);  in parport_release()
976 	port->ops->save_state(port, dev->state);  in parport_release()
981 	for (pd = port->waithead; pd; pd = pd->waitnext) {  in parport_release()
989 			if (dev->port->cad) /* racy but no matter */  in parport_release()
992 			printk(KERN_ERR "%s: don't know how to wake %s\n", port->name, pd->name);  in parport_release()
999 	for (pd = port->devices; (port->cad == NULL) && pd; pd = pd->next) {  in parport_release()
1007 	struct parport *port = dev_id;  in parport_irq_handler()  local
1009 	parport_generic_irq(port);  in parport_irq_handler()