37 static void lapb_send_iframe(struct lapb_cb *lapb, struct sk_buff *skb, int poll_bit)  in lapb_send_iframe()  argument
44 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_send_iframe()
48 		frame[0] |= lapb->vs << 1;  in lapb_send_iframe()
50 		frame[1] |= lapb->vr << 1;  in lapb_send_iframe()
56 		*frame |= lapb->vr << 5;  in lapb_send_iframe()
57 		*frame |= lapb->vs << 1;  in lapb_send_iframe()
61 		 lapb->dev, lapb->state, poll_bit, lapb->vs, lapb->vr);  in lapb_send_iframe()
63 	lapb_transmit_buffer(lapb, skb, LAPB_COMMAND);  in lapb_send_iframe()
66 void lapb_kick(struct lapb_cb *lapb)  in lapb_kick()  argument
71 	modulus = (lapb->mode & LAPB_EXTENDED) ? LAPB_EMODULUS : LAPB_SMODULUS;  in lapb_kick()
72 	start = !skb_peek(&lapb->ack_queue) ? lapb->va : lapb->vs;  in lapb_kick()
73 	end   = (lapb->va + lapb->window) % modulus;  in lapb_kick()
75 	if (!(lapb->condition & LAPB_PEER_RX_BUSY_CONDITION) &&  in lapb_kick()
76 	    start != end && skb_peek(&lapb->write_queue)) {  in lapb_kick()
77 		lapb->vs = start;  in lapb_kick()
82 		skb = skb_dequeue(&lapb->write_queue);  in lapb_kick()
86 				skb_queue_head(&lapb->write_queue, skb);  in lapb_kick()
96 			lapb_send_iframe(lapb, skbn, LAPB_POLLOFF);  in lapb_kick()
98 			lapb->vs = (lapb->vs + 1) % modulus;  in lapb_kick()
103 			skb_queue_tail(&lapb->ack_queue, skb);  in lapb_kick()
105 		} while (lapb->vs != end && (skb = skb_dequeue(&lapb->write_queue)) != NULL);  in lapb_kick()
107 		lapb->condition &= ~LAPB_ACK_PENDING_CONDITION;  in lapb_kick()
109 		if (!lapb_t1timer_running(lapb))  in lapb_kick()
110 			lapb_start_t1timer(lapb);  in lapb_kick()
114 void lapb_transmit_buffer(struct lapb_cb *lapb, struct sk_buff *skb, int type)  in lapb_transmit_buffer()  argument
120 	if (lapb->mode & LAPB_MLP) {  in lapb_transmit_buffer()
121 		if (lapb->mode & LAPB_DCE) {  in lapb_transmit_buffer()
133 		if (lapb->mode & LAPB_DCE) {  in lapb_transmit_buffer()
146 	lapb_dbg(2, "(%p) S%d TX %3ph\n", lapb->dev, lapb->state, skb->data);  in lapb_transmit_buffer()
148 	if (!lapb_data_transmit(lapb, skb))  in lapb_transmit_buffer()
152 void lapb_establish_data_link(struct lapb_cb *lapb)  in lapb_establish_data_link()  argument
154 	lapb->condition = 0x00;  in lapb_establish_data_link()
155 	lapb->n2count   = 0;  in lapb_establish_data_link()
157 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_establish_data_link()
158 		lapb_dbg(1, "(%p) S%d TX SABME(1)\n", lapb->dev, lapb->state);  in lapb_establish_data_link()
159 		lapb_send_control(lapb, LAPB_SABME, LAPB_POLLON, LAPB_COMMAND);  in lapb_establish_data_link()
161 		lapb_dbg(1, "(%p) S%d TX SABM(1)\n", lapb->dev, lapb->state);  in lapb_establish_data_link()
162 		lapb_send_control(lapb, LAPB_SABM, LAPB_POLLON, LAPB_COMMAND);  in lapb_establish_data_link()
165 	lapb_start_t1timer(lapb);  in lapb_establish_data_link()
166 	lapb_stop_t2timer(lapb);  in lapb_establish_data_link()
169 void lapb_enquiry_response(struct lapb_cb *lapb)  in lapb_enquiry_response()  argument
172 		 lapb->dev, lapb->state, lapb->vr);  in lapb_enquiry_response()
174 	lapb_send_control(lapb, LAPB_RR, LAPB_POLLON, LAPB_RESPONSE);  in lapb_enquiry_response()
176 	lapb->condition &= ~LAPB_ACK_PENDING_CONDITION;  in lapb_enquiry_response()
179 void lapb_timeout_response(struct lapb_cb *lapb)  in lapb_timeout_response()  argument
182 		 lapb->dev, lapb->state, lapb->vr);  in lapb_timeout_response()
183 	lapb_send_control(lapb, LAPB_RR, LAPB_POLLOFF, LAPB_RESPONSE);  in lapb_timeout_response()
185 	lapb->condition &= ~LAPB_ACK_PENDING_CONDITION;  in lapb_timeout_response()
188 void lapb_check_iframes_acked(struct lapb_cb *lapb, unsigned short nr)  in lapb_check_iframes_acked()  argument
190 	if (lapb->vs == nr) {  in lapb_check_iframes_acked()
191 		lapb_frames_acked(lapb, nr);  in lapb_check_iframes_acked()
192 		lapb_stop_t1timer(lapb);  in lapb_check_iframes_acked()
193 		lapb->n2count = 0;  in lapb_check_iframes_acked()
194 	} else if (lapb->va != nr) {  in lapb_check_iframes_acked()
195 		lapb_frames_acked(lapb, nr);  in lapb_check_iframes_acked()
196 		lapb_start_t1timer(lapb);  in lapb_check_iframes_acked()
200 void lapb_check_need_response(struct lapb_cb *lapb, int type, int pf)  in lapb_check_need_response()  argument
203 		lapb_enquiry_response(lapb);  in lapb_check_need_response()