145 static int capiminor_add_ack(struct capiminor *mp, u16 datahandle)  in capiminor_add_ack()  argument
156 	spin_lock_bh(&mp->ackqlock);  in capiminor_add_ack()
157 	list_add_tail(&n->list, &mp->ackqueue);  in capiminor_add_ack()
158 	mp->nack++;  in capiminor_add_ack()
159 	spin_unlock_bh(&mp->ackqlock);  in capiminor_add_ack()
163 static int capiminor_del_ack(struct capiminor *mp, u16 datahandle)  in capiminor_del_ack()  argument
167 	spin_lock_bh(&mp->ackqlock);  in capiminor_del_ack()
168 	list_for_each_entry_safe(p, tmp, &mp->ackqueue, list) {  in capiminor_del_ack()
171 			mp->nack--;  in capiminor_del_ack()
172 			spin_unlock_bh(&mp->ackqlock);  in capiminor_del_ack()
177 	spin_unlock_bh(&mp->ackqlock);  in capiminor_del_ack()
181 static void capiminor_del_all_ack(struct capiminor *mp)  in capiminor_del_all_ack()  argument
185 	list_for_each_entry_safe(p, tmp, &mp->ackqueue, list) {  in capiminor_del_all_ack()
188 		mp->nack--;  in capiminor_del_all_ack()
197 	struct capiminor *mp = container_of(port, struct capiminor, port);  in capiminor_destroy()  local
199 	kfree_skb(mp->outskb);  in capiminor_destroy()
200 	skb_queue_purge(&mp->inqueue);  in capiminor_destroy()
201 	skb_queue_purge(&mp->outqueue);  in capiminor_destroy()
202 	capiminor_del_all_ack(mp);  in capiminor_destroy()
203 	kfree(mp);  in capiminor_destroy()
212 	struct capiminor *mp;  in capiminor_alloc()  local
216 	mp = kzalloc(sizeof(*mp), GFP_KERNEL);  in capiminor_alloc()
217 	if (!mp) {  in capiminor_alloc()
222 	mp->ap = ap;  in capiminor_alloc()
223 	mp->ncci = ncci;  in capiminor_alloc()
224 	INIT_LIST_HEAD(&mp->ackqueue);  in capiminor_alloc()
225 	spin_lock_init(&mp->ackqlock);  in capiminor_alloc()
227 	skb_queue_head_init(&mp->inqueue);  in capiminor_alloc()
228 	skb_queue_head_init(&mp->outqueue);  in capiminor_alloc()
229 	spin_lock_init(&mp->outlock);  in capiminor_alloc()
231 	tty_port_init(&mp->port);  in capiminor_alloc()
232 	mp->port.ops = &capiminor_port_ops;  in capiminor_alloc()
238 			capiminors[minor] = mp;  in capiminor_alloc()
248 	mp->minor = minor;  in capiminor_alloc()
250 	dev = tty_port_register_device(&mp->port, capinc_tty_driver, minor,  in capiminor_alloc()
255 	return mp;  in capiminor_alloc()
263 	tty_port_put(&mp->port);  in capiminor_alloc()
269 	struct capiminor *mp;  in capiminor_get()  local
272 	mp = capiminors[minor];  in capiminor_get()
273 	if (mp)  in capiminor_get()
274 		tty_port_get(&mp->port);  in capiminor_get()
277 	return mp;  in capiminor_get()
280 static inline void capiminor_put(struct capiminor *mp)  in capiminor_put()  argument
282 	tty_port_put(&mp->port);  in capiminor_put()
285 static void capiminor_free(struct capiminor *mp)  in capiminor_free()  argument
287 	tty_unregister_device(capinc_tty_driver, mp->minor);  in capiminor_free()
290 	capiminors[mp->minor] = NULL;  in capiminor_free()
293 	capiminor_put(mp);  in capiminor_free()
306 	struct capiminor *mp = np->minorp;  in capincci_free_minor()  local
309 	if (mp) {  in capincci_free_minor()
310 		tty = tty_port_tty_get(&mp->port);  in capincci_free_minor()
316 		capiminor_free(mp);  in capincci_free_minor()
322 	struct capiminor *mp = np->minorp;  in capincci_minor_opencount()  local
326 	if (mp) {  in capincci_minor_opencount()
327 		tty = tty_port_tty_get(&mp->port);  in capincci_minor_opencount()
387 gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)  in gen_data_b3_resp_for()  argument
395 		capimsg_setu16(s, 2, mp->ap->applid);  in gen_data_b3_resp_for()
398 		capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));  in gen_data_b3_resp_for()
399 		capimsg_setu32(s, 8, mp->ncci);  in gen_data_b3_resp_for()
405 static int handle_recv_skb(struct capiminor *mp, struct sk_buff *skb)  in handle_recv_skb()  argument
414 	tty = tty_port_tty_get(&mp->port);  in handle_recv_skb()
433 	if (mp->ttyinstop) {  in handle_recv_skb()
443 	nskb = gen_data_b3_resp_for(mp, skb);  in handle_recv_skb()
451 	errcode = capi20_put_message(mp->ap, nskb);  in handle_recv_skb()
479 static void handle_minor_recv(struct capiminor *mp)  in handle_minor_recv()  argument
483 	while ((skb = skb_dequeue(&mp->inqueue)) != NULL)  in handle_minor_recv()
484 		if (handle_recv_skb(mp, skb) < 0) {  in handle_minor_recv()
485 			skb_queue_head(&mp->inqueue, skb);  in handle_minor_recv()
490 static void handle_minor_send(struct capiminor *mp)  in handle_minor_send()  argument
498 	tty = tty_port_tty_get(&mp->port);  in handle_minor_send()
502 	if (mp->ttyoutstop) {  in handle_minor_send()
509 		spin_lock_bh(&mp->outlock);  in handle_minor_send()
510 		skb = __skb_dequeue(&mp->outqueue);  in handle_minor_send()
512 			spin_unlock_bh(&mp->outlock);  in handle_minor_send()
516 		mp->outbytes -= len;  in handle_minor_send()
517 		spin_unlock_bh(&mp->outlock);  in handle_minor_send()
519 		datahandle = atomic_inc_return(&mp->datahandle);  in handle_minor_send()
523 		capimsg_setu16(skb->data, 2, mp->ap->applid);  in handle_minor_send()
526 		capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));  in handle_minor_send()
527 		capimsg_setu32(skb->data, 8, mp->ncci);	/* NCCI */  in handle_minor_send()
533 		if (capiminor_add_ack(mp, datahandle) < 0) {  in handle_minor_send()
536 			spin_lock_bh(&mp->outlock);  in handle_minor_send()
537 			__skb_queue_head(&mp->outqueue, skb);  in handle_minor_send()
538 			mp->outbytes += len;  in handle_minor_send()
539 			spin_unlock_bh(&mp->outlock);  in handle_minor_send()
543 		errcode = capi20_put_message(mp->ap, skb);  in handle_minor_send()
549 		capiminor_del_ack(mp, datahandle);  in handle_minor_send()
554 			spin_lock_bh(&mp->outlock);  in handle_minor_send()
555 			__skb_queue_head(&mp->outqueue, skb);  in handle_minor_send()
556 			mp->outbytes += len;  in handle_minor_send()
557 			spin_unlock_bh(&mp->outlock);  in handle_minor_send()
576 	struct capiminor *mp;  in capi_recv_message()  local
611 	mp = np->minorp;  in capi_recv_message()
612 	if (!mp) {  in capi_recv_message()
621 		skb_queue_tail(&mp->inqueue, skb);  in capi_recv_message()
623 		handle_minor_recv(mp);  in capi_recv_message()
632 		capiminor_del_ack(mp, datahandle);  in capi_recv_message()
633 		tty_port_tty_wakeup(&mp->port);  in capi_recv_message()
634 		handle_minor_send(mp);  in capi_recv_message()
920 		struct capiminor *mp;  in capi_ioctl()  local
930 			mp = nccip->minorp;  in capi_ioctl()
931 			if (mp)  in capi_ioctl()
932 				unit = mp->minor;  in capi_ioctl()
1043 	struct capiminor *mp = capiminor_get(tty->index);  in capinc_tty_install()  local
1047 		tty->driver_data = mp;  in capinc_tty_install()
1049 		capiminor_put(mp);  in capinc_tty_install()
1055 	struct capiminor *mp = tty->driver_data;  in capinc_tty_cleanup()  local
1057 	capiminor_put(mp);  in capinc_tty_cleanup()
1062 	struct capiminor *mp = tty->driver_data;  in capinc_tty_open()  local
1065 	err = tty_port_open(&mp->port, tty, filp);  in capinc_tty_open()
1069 	handle_minor_recv(mp);  in capinc_tty_open()
1075 	struct capiminor *mp = tty->driver_data;  in capinc_tty_close()  local
1077 	tty_port_close(&mp->port, tty, filp);  in capinc_tty_close()
1083 	struct capiminor *mp = tty->driver_data;  in capinc_tty_write()  local
1088 	spin_lock_bh(&mp->outlock);  in capinc_tty_write()
1089 	skb = mp->outskb;  in capinc_tty_write()
1091 		mp->outskb = NULL;  in capinc_tty_write()
1092 		__skb_queue_tail(&mp->outqueue, skb);  in capinc_tty_write()
1093 		mp->outbytes += skb->len;  in capinc_tty_write()
1099 		spin_unlock_bh(&mp->outlock);  in capinc_tty_write()
1106 	__skb_queue_tail(&mp->outqueue, skb);  in capinc_tty_write()
1107 	mp->outbytes += skb->len;  in capinc_tty_write()
1108 	spin_unlock_bh(&mp->outlock);  in capinc_tty_write()
1110 	handle_minor_send(mp);  in capinc_tty_write()
1117 	struct capiminor *mp = tty->driver_data;  in capinc_tty_put_char()  local
1124 	spin_lock_bh(&mp->outlock);  in capinc_tty_put_char()
1125 	skb = mp->outskb;  in capinc_tty_put_char()
1131 		mp->outskb = NULL;  in capinc_tty_put_char()
1132 		__skb_queue_tail(&mp->outqueue, skb);  in capinc_tty_put_char()
1133 		mp->outbytes += skb->len;  in capinc_tty_put_char()
1141 		mp->outskb = skb;  in capinc_tty_put_char()
1148 	spin_unlock_bh(&mp->outlock);  in capinc_tty_put_char()
1151 		handle_minor_send(mp);  in capinc_tty_put_char()
1158 	struct capiminor *mp = tty->driver_data;  in capinc_tty_flush_chars()  local
1161 	spin_lock_bh(&mp->outlock);  in capinc_tty_flush_chars()
1162 	skb = mp->outskb;  in capinc_tty_flush_chars()
1164 		mp->outskb = NULL;  in capinc_tty_flush_chars()
1165 		__skb_queue_tail(&mp->outqueue, skb);  in capinc_tty_flush_chars()
1166 		mp->outbytes += skb->len;  in capinc_tty_flush_chars()
1167 		spin_unlock_bh(&mp->outlock);  in capinc_tty_flush_chars()
1169 		handle_minor_send(mp);  in capinc_tty_flush_chars()
1171 		spin_unlock_bh(&mp->outlock);  in capinc_tty_flush_chars()
1173 	handle_minor_recv(mp);  in capinc_tty_flush_chars()
1178 	struct capiminor *mp = tty->driver_data;  in capinc_tty_write_room()  local
1181 	room = CAPINC_MAX_SENDQUEUE-skb_queue_len(&mp->outqueue);  in capinc_tty_write_room()
1189 	struct capiminor *mp = tty->driver_data;  in capinc_tty_chars_in_buffer()  local
1192 		 mp->outbytes, mp->nack,  in capinc_tty_chars_in_buffer()
1193 		 skb_queue_len(&mp->outqueue),  in capinc_tty_chars_in_buffer()
1194 		 skb_queue_len(&mp->inqueue));  in capinc_tty_chars_in_buffer()
1195 	return mp->outbytes;  in capinc_tty_chars_in_buffer()
1200 	struct capiminor *mp = tty->driver_data;  in capinc_tty_throttle()  local
1201 	mp->ttyinstop = 1;  in capinc_tty_throttle()
1206 	struct capiminor *mp = tty->driver_data;  in capinc_tty_unthrottle()  local
1208 	mp->ttyinstop = 0;  in capinc_tty_unthrottle()
1209 	handle_minor_recv(mp);  in capinc_tty_unthrottle()
1214 	struct capiminor *mp = tty->driver_data;  in capinc_tty_stop()  local
1216 	mp->ttyoutstop = 1;  in capinc_tty_stop()
1221 	struct capiminor *mp = tty->driver_data;  in capinc_tty_start()  local
1223 	mp->ttyoutstop = 0;  in capinc_tty_start()
1224 	handle_minor_send(mp);  in capinc_tty_start()
1229 	struct capiminor *mp = tty->driver_data;  in capinc_tty_hangup()  local
1231 	tty_port_hangup(&mp->port);  in capinc_tty_hangup()