291 	struct net_local *nl = netdev_priv(dev);  in plip_init_netdev()  local
302 	nl->port_owner = 0;  in plip_init_netdev()
305 	nl->trigger	= PLIP_TRIGGER_WAIT;  in plip_init_netdev()
306 	nl->nibble	= PLIP_NIBBLE_WAIT;  in plip_init_netdev()
309 	INIT_WORK(&nl->immediate, plip_bh);  in plip_init_netdev()
310 	INIT_DELAYED_WORK(&nl->deferred, plip_kick_bh);  in plip_init_netdev()
313 		INIT_DELAYED_WORK(&nl->timer, plip_timer_bh);  in plip_init_netdev()
315 	spin_lock_init(&nl->lock);  in plip_init_netdev()
324 	struct net_local *nl =  in plip_kick_bh()  local
327 	if (nl->is_deferred)  in plip_kick_bh()
328 		schedule_work(&nl->immediate);  in plip_kick_bh()
342 static int plip_bh_timeout_error(struct net_device *dev, struct net_local *nl,
352 typedef int (*plip_func)(struct net_device *dev, struct net_local *nl,
368 	struct net_local *nl = container_of(work, struct net_local, immediate);  in plip_bh()  local
369 	struct plip_local *snd = &nl->snd_data;  in plip_bh()
370 	struct plip_local *rcv = &nl->rcv_data;  in plip_bh()
374 	nl->is_deferred = 0;  in plip_bh()
375 	f = connection_state_table[nl->connection];  in plip_bh()
376 	if ((r = (*f)(nl->dev, nl, snd, rcv)) != OK &&  in plip_bh()
377 	    (r = plip_bh_timeout_error(nl->dev, nl, snd, rcv, r)) != OK) {  in plip_bh()
378 		nl->is_deferred = 1;  in plip_bh()
379 		schedule_delayed_work(&nl->deferred, 1);  in plip_bh()
386 	struct net_local *nl =  in plip_timer_bh()  local
389 	if (!(atomic_read (&nl->kill_timer))) {  in plip_timer_bh()
390 		plip_interrupt (nl->dev);  in plip_timer_bh()
392 		schedule_delayed_work(&nl->timer, 1);  in plip_timer_bh()
395 		complete(&nl->killed_timer_cmp);  in plip_timer_bh()
400 plip_bh_timeout_error(struct net_device *dev, struct net_local *nl,  in plip_bh_timeout_error()  argument
415 	spin_lock_irq(&nl->lock);  in plip_bh_timeout_error()
416 	if (nl->connection == PLIP_CN_SEND) {  in plip_bh_timeout_error()
419 			nl->timeout_count++;  in plip_bh_timeout_error()
420 			if ((error == HS_TIMEOUT && nl->timeout_count <= 10) ||  in plip_bh_timeout_error()
421 			    nl->timeout_count <= 3) {  in plip_bh_timeout_error()
422 				spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
433 	} else if (nl->connection == PLIP_CN_RECEIVE) {  in plip_bh_timeout_error()
436 			spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
440 			if (++nl->timeout_count <= 3) {  in plip_bh_timeout_error()
441 				spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
461 	spin_unlock_irq(&nl->lock);  in plip_bh_timeout_error()
468 	nl->connection = PLIP_CN_ERROR;  in plip_bh_timeout_error()
475 plip_none(struct net_device *dev, struct net_local *nl,  in plip_none()  argument
588 plip_receive_packet(struct net_device *dev, struct net_local *nl,  in plip_receive_packet()  argument
591 	unsigned short nibble_timeout = nl->nibble;  in plip_receive_packet()
608 			if (plip_receive(nl->trigger, dev,  in plip_receive_packet()
612 				nl->is_deferred = 1;  in plip_receive_packet()
613 				nl->connection = PLIP_CN_SEND;  in plip_receive_packet()
614 				schedule_delayed_work(&nl->deferred, 1);  in plip_receive_packet()
688 		spin_lock_irq(&nl->lock);  in plip_receive_packet()
690 			nl->connection = PLIP_CN_SEND;  in plip_receive_packet()
691 			spin_unlock_irq(&nl->lock);  in plip_receive_packet()
692 			schedule_work(&nl->immediate);  in plip_receive_packet()
697 			nl->connection = PLIP_CN_NONE;  in plip_receive_packet()
698 			spin_unlock_irq(&nl->lock);  in plip_receive_packet()
756 plip_send_packet(struct net_device *dev, struct net_local *nl,  in plip_send_packet()  argument
759 	unsigned short nibble_timeout = nl->nibble;  in plip_send_packet()
778 		cx = nl->trigger;  in plip_send_packet()
781 			spin_lock_irq(&nl->lock);  in plip_send_packet()
782 			if (nl->connection == PLIP_CN_RECEIVE) {  in plip_send_packet()
783 				spin_unlock_irq(&nl->lock);  in plip_send_packet()
790 				spin_unlock_irq(&nl->lock);  in plip_send_packet()
793 				if (nl->connection == PLIP_CN_RECEIVE) {  in plip_send_packet()
809 				nl->timeout_count = 0;  in plip_send_packet()
812 			spin_unlock_irq(&nl->lock);  in plip_send_packet()
865 		nl->connection = PLIP_CN_CLOSING;  in plip_send_packet()
866 		nl->is_deferred = 1;  in plip_send_packet()
867 		schedule_delayed_work(&nl->deferred, 1);  in plip_send_packet()
876 plip_connection_close(struct net_device *dev, struct net_local *nl,  in plip_connection_close()  argument
879 	spin_lock_irq(&nl->lock);  in plip_connection_close()
880 	if (nl->connection == PLIP_CN_CLOSING) {  in plip_connection_close()
881 		nl->connection = PLIP_CN_NONE;  in plip_connection_close()
884 	spin_unlock_irq(&nl->lock);  in plip_connection_close()
885 	if (nl->should_relinquish) {  in plip_connection_close()
886 		nl->should_relinquish = nl->port_owner = 0;  in plip_connection_close()
887 		parport_release(nl->pardev);  in plip_connection_close()
894 plip_error(struct net_device *dev, struct net_local *nl,  in plip_error()  argument
903 		nl->connection = PLIP_CN_NONE;  in plip_error()
904 		nl->should_relinquish = 0;  in plip_error()
910 		nl->is_deferred = 1;  in plip_error()
911 		schedule_delayed_work(&nl->deferred, 1);  in plip_error()
922 	struct net_local *nl;  in plip_interrupt()  local
927 	nl = netdev_priv(dev);  in plip_interrupt()
928 	rcv = &nl->rcv_data;  in plip_interrupt()
930 	spin_lock_irqsave (&nl->lock, flags);  in plip_interrupt()
936 		spin_unlock_irqrestore (&nl->lock, flags);  in plip_interrupt()
943 	switch (nl->connection) {  in plip_interrupt()
950 		nl->connection = PLIP_CN_RECEIVE;  in plip_interrupt()
951 		nl->timeout_count = 0;  in plip_interrupt()
952 		schedule_work(&nl->immediate);  in plip_interrupt()
966 	spin_unlock_irqrestore(&nl->lock, flags);  in plip_interrupt()
972 	struct net_local *nl = netdev_priv(dev);  in plip_tx_packet()  local
973 	struct plip_local *snd = &nl->snd_data;  in plip_tx_packet()
979 	if (!nl->port_owner) {  in plip_tx_packet()
980 		if (parport_claim(nl->pardev))  in plip_tx_packet()
982 		nl->port_owner = 1;  in plip_tx_packet()
996 	spin_lock_irq(&nl->lock);  in plip_tx_packet()
1000 	if (nl->connection == PLIP_CN_NONE) {  in plip_tx_packet()
1001 		nl->connection = PLIP_CN_SEND;  in plip_tx_packet()
1002 		nl->timeout_count = 0;  in plip_tx_packet()
1004 	schedule_work(&nl->immediate);  in plip_tx_packet()
1005 	spin_unlock_irq(&nl->lock);  in plip_tx_packet()
1069 	struct net_local *nl = netdev_priv(dev);  in plip_open()  local
1073 	if (!nl->port_owner) {  in plip_open()
1074 		if (parport_claim(nl->pardev)) return -EAGAIN;  in plip_open()
1075 		nl->port_owner = 1;  in plip_open()
1078 	nl->should_relinquish = 0;  in plip_open()
1087 		atomic_set (&nl->kill_timer, 0);  in plip_open()
1088 		schedule_delayed_work(&nl->timer, 1);  in plip_open()
1092 	nl->rcv_data.state = nl->snd_data.state = PLIP_PK_DONE;  in plip_open()
1093 	nl->rcv_data.skb = nl->snd_data.skb = NULL;  in plip_open()
1094 	nl->connection = PLIP_CN_NONE;  in plip_open()
1095 	nl->is_deferred = 0;  in plip_open()
1129 	struct net_local *nl = netdev_priv(dev);  in plip_close()  local
1130 	struct plip_local *snd = &nl->snd_data;  in plip_close()
1131 	struct plip_local *rcv = &nl->rcv_data;  in plip_close()
1139 		init_completion(&nl->killed_timer_cmp);  in plip_close()
1140 		atomic_set (&nl->kill_timer, 1);  in plip_close()
1141 		wait_for_completion(&nl->killed_timer_cmp);  in plip_close()
1147 	nl->is_deferred = 0;  in plip_close()
1148 	nl->connection = PLIP_CN_NONE;  in plip_close()
1149 	if (nl->port_owner) {  in plip_close()
1150 		parport_release(nl->pardev);  in plip_close()
1151 		nl->port_owner = 0;  in plip_close()
1176 	struct net_local *nl = netdev_priv(dev);  in plip_preempt()  local
1179 	if (nl->connection != PLIP_CN_NONE) {  in plip_preempt()
1180 		nl->should_relinquish = 1;  in plip_preempt()
1184 	nl->port_owner = 0;	/* Remember that we released the bus */  in plip_preempt()
1192 	struct net_local *nl = netdev_priv(dev);  in plip_wakeup()  local
1194 	if (nl->port_owner) {  in plip_wakeup()
1197 		if (!parport_claim(nl->pardev))  in plip_wakeup()
1208 	if (!parport_claim(nl->pardev)) {  in plip_wakeup()
1209 		nl->port_owner = 1;  in plip_wakeup()
1219 	struct net_local *nl = netdev_priv(dev);  in plip_siocdevprivate()  local
1230 		pc->trigger = nl->trigger;  in plip_siocdevprivate()
1231 		pc->nibble  = nl->nibble;  in plip_siocdevprivate()
1236 		nl->trigger = pc->trigger;  in plip_siocdevprivate()
1237 		nl->nibble  = pc->nibble;  in plip_siocdevprivate()
1270 	struct net_local *nl;  in plip_attach()  local
1295 		nl = netdev_priv(dev);  in plip_attach()
1296 		nl->dev = dev;  in plip_attach()
1304 		nl->pardev = parport_register_dev_model(port, dev->name,  in plip_attach()
1307 		if (!nl->pardev) {  in plip_attach()
1333 	parport_unregister_device(nl->pardev);  in plip_attach()
1370 			struct net_local *nl = netdev_priv(dev);  in plip_cleanup_module()  local
1372 			if (nl->port_owner)  in plip_cleanup_module()
1373 				parport_release(nl->pardev);  in plip_cleanup_module()
1374 			parport_unregister_device(nl->pardev);  in plip_cleanup_module()