63 	struct rfcomm_dlc	*dlc;  member
75 static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb);
76 static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err);
77 static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig);
84 	struct rfcomm_dlc *dlc = dev->dlc;  in rfcomm_dev_destruct()  local
86 	BT_DBG("dev %p dlc %p", dev, dlc);  in rfcomm_dev_destruct()
88 	rfcomm_dlc_lock(dlc);  in rfcomm_dev_destruct()
89 	/* Detach DLC if it's owned by this dev */  in rfcomm_dev_destruct()
90 	if (dlc->owner == dev)  in rfcomm_dev_destruct()
91 		dlc->owner = NULL;  in rfcomm_dev_destruct()
92 	rfcomm_dlc_unlock(dlc);  in rfcomm_dev_destruct()
94 	rfcomm_dlc_put(dlc);  in rfcomm_dev_destruct()
110 /* device-specific initialization: open the dlc */
116 	err = rfcomm_dlc_open(dev->dlc, &dev->src, &dev->dst, dev->channel);  in rfcomm_dev_activate()
122 /* we block the open until the dlc->state becomes BT_CONNECTED */
127 	return (dev->dlc->state == BT_CONNECTED);  in rfcomm_dev_carrier_raised()
130 /* device-specific cleanup: close the dlc */
138 	/* close the dlc */  in rfcomm_dev_shutdown()
139 	rfcomm_dlc_close(dev->dlc, 0);  in rfcomm_dev_shutdown()
217 					   struct rfcomm_dlc *dlc)  in __rfcomm_dev_add()  argument
276 	rfcomm_dlc_lock(dlc);  in __rfcomm_dev_add()
279 		struct sock *sk = dlc->owner;  in __rfcomm_dev_add()
284 		rfcomm_dlc_throttle(dlc);  in __rfcomm_dev_add()
293 	dlc->data_ready   = rfcomm_dev_data_ready;  in __rfcomm_dev_add()
294 	dlc->state_change = rfcomm_dev_state_change;  in __rfcomm_dev_add()
295 	dlc->modem_status = rfcomm_dev_modem_status;  in __rfcomm_dev_add()
297 	dlc->owner = dev;  in __rfcomm_dev_add()
298 	dev->dlc   = dlc;  in __rfcomm_dev_add()
300 	rfcomm_dev_modem_status(dlc, dlc->remote_v24_sig);  in __rfcomm_dev_add()
302 	rfcomm_dlc_unlock(dlc);  in __rfcomm_dev_add()
317 static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc)  in rfcomm_dev_add()  argument
324 	dev = __rfcomm_dev_add(req, dlc);  in rfcomm_dev_add()
326 		rfcomm_dlc_put(dlc);  in rfcomm_dev_add()
353 	struct rfcomm_dlc *dlc = dev->dlc;  in rfcomm_room()  local
358 	return max(0, pending) * dlc->mtu;  in rfcomm_room()
393 	struct rfcomm_dlc *dlc;  in __rfcomm_create_dev()  local
409 		dlc = rfcomm_pi(sk)->dlc;  in __rfcomm_create_dev()
410 		rfcomm_dlc_hold(dlc);  in __rfcomm_create_dev()
413 		dlc = rfcomm_dlc_exists(&req.src, &req.dst, req.channel);  in __rfcomm_create_dev()
414 		if (IS_ERR(dlc))  in __rfcomm_create_dev()
415 			return PTR_ERR(dlc);  in __rfcomm_create_dev()
416 		if (dlc)  in __rfcomm_create_dev()
418 		dlc = rfcomm_dlc_alloc(GFP_KERNEL);  in __rfcomm_create_dev()
419 		if (!dlc)  in __rfcomm_create_dev()
423 	id = rfcomm_dev_add(&req, dlc);  in __rfcomm_create_dev()
428 		/* DLC is now used by device.  in __rfcomm_create_dev()
463 		rfcomm_dlc_close(dev->dlc, 0);  in __rfcomm_release_dev()
532 		(di + n)->state   = dev->dlc->state;  in rfcomm_get_dev_list()
569 	di.state   = dev->dlc->state;  in rfcomm_get_dev_info()
601 /* ---- DLC callbacks ---- */
602 static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb)  in rfcomm_dev_data_ready()  argument
604 	struct rfcomm_dev *dev = dlc->owner;  in rfcomm_dev_data_ready()
616 	BT_DBG("dlc %p len %d", dlc, skb->len);  in rfcomm_dev_data_ready()
624 static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err)  in rfcomm_dev_state_change()  argument
626 	struct rfcomm_dev *dev = dlc->owner;  in rfcomm_dev_state_change()
630 	BT_DBG("dlc %p dev %p err %d", dlc, dev, err);  in rfcomm_dev_state_change()
633 	if (dlc->state == BT_CONNECTED) {  in rfcomm_dev_state_change()
637 	} else if (dlc->state == BT_CLOSED)  in rfcomm_dev_state_change()
641 static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig)  in rfcomm_dev_modem_status()  argument
643 	struct rfcomm_dev *dev = dlc->owner;  in rfcomm_dev_modem_status()
647 	BT_DBG("dlc %p dev %p v24_sig 0x%02x", dlc, dev, v24_sig);  in rfcomm_dev_modem_status()
667 	rfcomm_dlc_lock(dev->dlc);  in rfcomm_tty_copy_pending()
675 	rfcomm_dlc_unlock(dev->dlc);  in rfcomm_tty_copy_pending()
690 	rfcomm_dlc_lock(dev->dlc);  in rfcomm_tty_cleanup()
692 	rfcomm_dlc_unlock(dev->dlc);  in rfcomm_tty_cleanup()
695 	 * purge the dlc->tx_queue to avoid circular dependencies  in rfcomm_tty_cleanup()
696 	 * between dev and dlc  in rfcomm_tty_cleanup()
698 	skb_queue_purge(&dev->dlc->tx_queue);  in rfcomm_tty_cleanup()
710 	struct rfcomm_dlc *dlc;  in rfcomm_tty_install()  local
717 	dlc = dev->dlc;  in rfcomm_tty_install()
719 	/* Attach TTY and open DLC */  in rfcomm_tty_install()
720 	rfcomm_dlc_lock(dlc);  in rfcomm_tty_install()
722 	rfcomm_dlc_unlock(dlc);  in rfcomm_tty_install()
766 	rfcomm_dlc_unthrottle(dev->dlc);  in rfcomm_tty_open()
775 	BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,  in rfcomm_tty_close()
784 	struct rfcomm_dlc *dlc = dev->dlc;  in rfcomm_tty_write()  local
791 		size = min_t(uint, count, dlc->mtu);  in rfcomm_tty_write()
801 		rfcomm_dlc_send_noerror(dlc, skb);  in rfcomm_tty_write()
815 	if (dev && dev->dlc)  in rfcomm_tty_write_room()
869 	if (!dev || !dev->dlc || !dev->dlc->session)  in rfcomm_tty_set_termios()
990 		rfcomm_send_rpn(dev->dlc->session, 1, dev->dlc->dlci, baud,  in rfcomm_tty_set_termios()
1001 	rfcomm_dlc_throttle(dev->dlc);  in rfcomm_tty_throttle()
1010 	rfcomm_dlc_unthrottle(dev->dlc);  in rfcomm_tty_unthrottle()
1019 	if (!dev || !dev->dlc)  in rfcomm_tty_chars_in_buffer()
1022 	if (!skb_queue_empty(&dev->dlc->tx_queue))  in rfcomm_tty_chars_in_buffer()
1023 		return dev->dlc->mtu;  in rfcomm_tty_chars_in_buffer()
1034 	if (!dev || !dev->dlc)  in rfcomm_tty_flush_buffer()
1037 	skb_queue_purge(&dev->dlc->tx_queue);  in rfcomm_tty_flush_buffer()
1072 	struct rfcomm_dlc *dlc = dev->dlc;  in rfcomm_tty_tiocmset()  local
1077 	rfcomm_dlc_get_modem_status(dlc, &v24_sig);  in rfcomm_tty_tiocmset()
1097 	rfcomm_dlc_set_modem_status(dlc, v24_sig);  in rfcomm_tty_tiocmset()