287 	struct net_local *nl = netdev_priv(dev);  in plip_init_netdev()  local
298 	nl->port_owner = 0;  in plip_init_netdev()
301 	nl->trigger	= PLIP_TRIGGER_WAIT;  in plip_init_netdev()
302 	nl->nibble	= PLIP_NIBBLE_WAIT;  in plip_init_netdev()
305 	INIT_WORK(&nl->immediate, plip_bh);  in plip_init_netdev()
306 	INIT_DELAYED_WORK(&nl->deferred, plip_kick_bh);  in plip_init_netdev()
309 		INIT_DELAYED_WORK(&nl->timer, plip_timer_bh);  in plip_init_netdev()
311 	spin_lock_init(&nl->lock);  in plip_init_netdev()
320 	struct net_local *nl =  in plip_kick_bh()  local
323 	if (nl->is_deferred)  in plip_kick_bh()
324 		schedule_work(&nl->immediate);  in plip_kick_bh()
338 static int plip_bh_timeout_error(struct net_device *dev, struct net_local *nl,
348 typedef int (*plip_func)(struct net_device *dev, struct net_local *nl,
364 	struct net_local *nl = container_of(work, struct net_local, immediate);  in plip_bh()  local
365 	struct plip_local *snd = &nl->snd_data;  in plip_bh()
366 	struct plip_local *rcv = &nl->rcv_data;  in plip_bh()
370 	nl->is_deferred = 0;  in plip_bh()
371 	f = connection_state_table[nl->connection];  in plip_bh()
372 	if ((r = (*f)(nl->dev, nl, snd, rcv)) != OK &&  in plip_bh()
373 	    (r = plip_bh_timeout_error(nl->dev, nl, snd, rcv, r)) != OK) {  in plip_bh()
374 		nl->is_deferred = 1;  in plip_bh()
375 		schedule_delayed_work(&nl->deferred, 1);  in plip_bh()
382 	struct net_local *nl =  in plip_timer_bh()  local
385 	if (!(atomic_read (&nl->kill_timer))) {  in plip_timer_bh()
386 		plip_interrupt (nl->dev);  in plip_timer_bh()
388 		schedule_delayed_work(&nl->timer, 1);  in plip_timer_bh()
391 		complete(&nl->killed_timer_cmp);  in plip_timer_bh()
396 plip_bh_timeout_error(struct net_device *dev, struct net_local *nl,  in plip_bh_timeout_error()  argument
411 	spin_lock_irq(&nl->lock);  in plip_bh_timeout_error()
412 	if (nl->connection == PLIP_CN_SEND) {  in plip_bh_timeout_error()
415 			nl->timeout_count++;  in plip_bh_timeout_error()
416 			if ((error == HS_TIMEOUT && nl->timeout_count <= 10) ||  in plip_bh_timeout_error()
417 			    nl->timeout_count <= 3) {  in plip_bh_timeout_error()
418 				spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
429 	} else if (nl->connection == PLIP_CN_RECEIVE) {  in plip_bh_timeout_error()
432 			spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
436 			if (++nl->timeout_count <= 3) {  in plip_bh_timeout_error()
437 				spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
457 	spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
464 	nl->connection = PLIP_CN_ERROR;  in plip_bh_timeout_error()
471 plip_none(struct net_device *dev, struct net_local *nl,  in plip_none()  argument
584 plip_receive_packet(struct net_device *dev, struct net_local *nl,  in plip_receive_packet()  argument
587 	unsigned short nibble_timeout = nl->nibble;  in plip_receive_packet()
604 			if (plip_receive(nl->trigger, dev,  in plip_receive_packet()
608 				nl->is_deferred = 1;  in plip_receive_packet()
609 				nl->connection = PLIP_CN_SEND;  in plip_receive_packet()
610 				schedule_delayed_work(&nl->deferred, 1);  in plip_receive_packet()
684 		spin_lock_irq(&nl->lock);  in plip_receive_packet()
686 			nl->connection = PLIP_CN_SEND;  in plip_receive_packet()
687 			spin_unlock_irq(&nl->lock);  in plip_receive_packet()
688 			schedule_work(&nl->immediate);  in plip_receive_packet()
693 			nl->connection = PLIP_CN_NONE;  in plip_receive_packet()
694 			spin_unlock_irq(&nl->lock);  in plip_receive_packet()
752 plip_send_packet(struct net_device *dev, struct net_local *nl,  in plip_send_packet()  argument
755 	unsigned short nibble_timeout = nl->nibble;  in plip_send_packet()
774 		cx = nl->trigger;  in plip_send_packet()
777 			spin_lock_irq(&nl->lock);  in plip_send_packet()
778 			if (nl->connection == PLIP_CN_RECEIVE) {  in plip_send_packet()
779 				spin_unlock_irq(&nl->lock);  in plip_send_packet()
786 				spin_unlock_irq(&nl->lock);  in plip_send_packet()
789 				if (nl->connection == PLIP_CN_RECEIVE) {  in plip_send_packet()
805 				nl->timeout_count = 0;  in plip_send_packet()
808 			spin_unlock_irq(&nl->lock);  in plip_send_packet()
861 		nl->connection = PLIP_CN_CLOSING;  in plip_send_packet()
862 		nl->is_deferred = 1;  in plip_send_packet()
863 		schedule_delayed_work(&nl->deferred, 1);  in plip_send_packet()
872 plip_connection_close(struct net_device *dev, struct net_local *nl,  in plip_connection_close()  argument
875 	spin_lock_irq(&nl->lock);  in plip_connection_close()
876 	if (nl->connection == PLIP_CN_CLOSING) {  in plip_connection_close()
877 		nl->connection = PLIP_CN_NONE;  in plip_connection_close()
880 	spin_unlock_irq(&nl->lock);  in plip_connection_close()
881 	if (nl->should_relinquish) {  in plip_connection_close()
882 		nl->should_relinquish = nl->port_owner = 0;  in plip_connection_close()
883 		parport_release(nl->pardev);  in plip_connection_close()
890 plip_error(struct net_device *dev, struct net_local *nl,  in plip_error()  argument
899 		nl->connection = PLIP_CN_NONE;  in plip_error()
900 		nl->should_relinquish = 0;  in plip_error()
906 		nl->is_deferred = 1;  in plip_error()
907 		schedule_delayed_work(&nl->deferred, 1);  in plip_error()
918 	struct net_local *nl;  in plip_interrupt()  local
923 	nl = netdev_priv(dev);  in plip_interrupt()
924 	rcv = &nl->rcv_data;  in plip_interrupt()
926 	spin_lock_irqsave (&nl->lock, flags);  in plip_interrupt()
932 		spin_unlock_irqrestore (&nl->lock, flags);  in plip_interrupt()
939 	switch (nl->connection) {  in plip_interrupt()
946 		nl->connection = PLIP_CN_RECEIVE;  in plip_interrupt()
947 		nl->timeout_count = 0;  in plip_interrupt()
948 		schedule_work(&nl->immediate);  in plip_interrupt()
962 	spin_unlock_irqrestore(&nl->lock, flags);  in plip_interrupt()
968 	struct net_local *nl = netdev_priv(dev);  in plip_tx_packet()  local
969 	struct plip_local *snd = &nl->snd_data;  in plip_tx_packet()
975 	if (!nl->port_owner) {  in plip_tx_packet()
976 		if (parport_claim(nl->pardev))  in plip_tx_packet()
978 		nl->port_owner = 1;  in plip_tx_packet()
992 	spin_lock_irq(&nl->lock);  in plip_tx_packet()
996 	if (nl->connection == PLIP_CN_NONE) {  in plip_tx_packet()
997 		nl->connection = PLIP_CN_SEND;  in plip_tx_packet()
998 		nl->timeout_count = 0;  in plip_tx_packet()
1000 	schedule_work(&nl->immediate);  in plip_tx_packet()
1001 	spin_unlock_irq(&nl->lock);  in plip_tx_packet()
1065 	struct net_local *nl = netdev_priv(dev);  in plip_open()  local
1069 	if (!nl->port_owner) {  in plip_open()
1070 		if (parport_claim(nl->pardev)) return -EAGAIN;  in plip_open()
1071 		nl->port_owner = 1;  in plip_open()
1074 	nl->should_relinquish = 0;  in plip_open()
1083 		atomic_set (&nl->kill_timer, 0);  in plip_open()
1084 		schedule_delayed_work(&nl->timer, 1);  in plip_open()
1088 	nl->rcv_data.state = nl->snd_data.state = PLIP_PK_DONE;  in plip_open()
1089 	nl->rcv_data.skb = nl->snd_data.skb = NULL;  in plip_open()
1090 	nl->connection = PLIP_CN_NONE;  in plip_open()
1091 	nl->is_deferred = 0;  in plip_open()
1125 	struct net_local *nl = netdev_priv(dev);  in plip_close()  local
1126 	struct plip_local *snd = &nl->snd_data;  in plip_close()
1127 	struct plip_local *rcv = &nl->rcv_data;  in plip_close()
1135 		init_completion(&nl->killed_timer_cmp);  in plip_close()
1136 		atomic_set (&nl->kill_timer, 1);  in plip_close()
1137 		wait_for_completion(&nl->killed_timer_cmp);  in plip_close()
1143 	nl->is_deferred = 0;  in plip_close()
1144 	nl->connection = PLIP_CN_NONE;  in plip_close()
1145 	if (nl->port_owner) {  in plip_close()
1146 		parport_release(nl->pardev);  in plip_close()
1147 		nl->port_owner = 0;  in plip_close()
1172 	struct net_local *nl = netdev_priv(dev);  in plip_preempt()  local
1175 	if (nl->connection != PLIP_CN_NONE) {  in plip_preempt()
1176 		nl->should_relinquish = 1;  in plip_preempt()
1180 	nl->port_owner = 0;	/* Remember that we released the bus */  in plip_preempt()
1188 	struct net_local *nl = netdev_priv(dev);  in plip_wakeup()  local
1190 	if (nl->port_owner) {  in plip_wakeup()
1193 		if (!parport_claim(nl->pardev))  in plip_wakeup()
1204 	if (!parport_claim(nl->pardev)) {  in plip_wakeup()
1205 		nl->port_owner = 1;  in plip_wakeup()
1215 	struct net_local *nl = netdev_priv(dev);  in plip_siocdevprivate()  local
1226 		pc->trigger = nl->trigger;  in plip_siocdevprivate()
1227 		pc->nibble  = nl->nibble;  in plip_siocdevprivate()
1232 		nl->trigger = pc->trigger;  in plip_siocdevprivate()
1233 		nl->nibble  = pc->nibble;  in plip_siocdevprivate()
1266 	struct net_local *nl;  in plip_attach()  local
1291 		nl = netdev_priv(dev);  in plip_attach()
1292 		nl->dev = dev;  in plip_attach()
1300 		nl->pardev = parport_register_dev_model(port, dev->name,  in plip_attach()
1303 		if (!nl->pardev) {  in plip_attach()
1329 	parport_unregister_device(nl->pardev);  in plip_attach()
1367 			struct net_local *nl = netdev_priv(dev);  in plip_cleanup_module()  local
1369 			if (nl->port_owner)  in plip_cleanup_module()
1370 				parport_release(nl->pardev);  in plip_cleanup_module()
1371 			parport_unregister_device(nl->pardev);  in plip_cleanup_module()