40 void lapb_clear_queues(struct lapb_cb *lapb)  in lapb_clear_queues()  argument
42 	skb_queue_purge(&lapb->write_queue);  in lapb_clear_queues()
43 	skb_queue_purge(&lapb->ack_queue);  in lapb_clear_queues()
51 void lapb_frames_acked(struct lapb_cb *lapb, unsigned short nr)  in lapb_frames_acked()  argument
56 	modulus = (lapb->mode & LAPB_EXTENDED) ? LAPB_EMODULUS : LAPB_SMODULUS;  in lapb_frames_acked()
61 	if (lapb->va != nr)  in lapb_frames_acked()
62 		while (skb_peek(&lapb->ack_queue) && lapb->va != nr) {  in lapb_frames_acked()
63 			skb = skb_dequeue(&lapb->ack_queue);  in lapb_frames_acked()
65 			lapb->va = (lapb->va + 1) % modulus;  in lapb_frames_acked()
69 void lapb_requeue_frames(struct lapb_cb *lapb)  in lapb_requeue_frames()  argument
78 	while ((skb = skb_dequeue(&lapb->ack_queue)) != NULL) {  in lapb_requeue_frames()
80 			skb_queue_head(&lapb->write_queue, skb);  in lapb_requeue_frames()
82 			skb_append(skb_prev, skb, &lapb->write_queue);  in lapb_requeue_frames()
91 int lapb_validate_nr(struct lapb_cb *lapb, unsigned short nr)  in lapb_validate_nr()  argument
93 	unsigned short vc = lapb->va;  in lapb_validate_nr()
96 	modulus = (lapb->mode & LAPB_EXTENDED) ? LAPB_EMODULUS : LAPB_SMODULUS;  in lapb_validate_nr()
98 	while (vc != lapb->vs) {  in lapb_validate_nr()
104 	return nr == lapb->vs;  in lapb_validate_nr()
111 int lapb_decode(struct lapb_cb *lapb, struct sk_buff *skb,  in lapb_decode()  argument
116 	lapb_dbg(2, "(%p) S%d RX %3ph\n", lapb->dev, lapb->state, skb->data);  in lapb_decode()
124 	if (lapb->mode & LAPB_MLP) {  in lapb_decode()
125 		if (lapb->mode & LAPB_DCE) {  in lapb_decode()
137 		if (lapb->mode & LAPB_DCE) {  in lapb_decode()
152 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_decode()
226 void lapb_send_control(struct lapb_cb *lapb, int frametype,  in lapb_send_control()  argument
237 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_send_control()
245 			dptr[1]  = (lapb->vr << 1);  in lapb_send_control()
253 			*dptr |= (lapb->vr << 5);  in lapb_send_control()
256 	lapb_transmit_buffer(lapb, skb, type);  in lapb_send_control()
263 void lapb_transmit_frmr(struct lapb_cb *lapb)  in lapb_transmit_frmr()  argument
273 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_transmit_frmr()
276 		*dptr++ = lapb->frmr_data.control[0];  in lapb_transmit_frmr()
277 		*dptr++ = lapb->frmr_data.control[1];  in lapb_transmit_frmr()
278 		*dptr++ = (lapb->vs << 1) & 0xFE;  in lapb_transmit_frmr()
279 		*dptr   = (lapb->vr << 1) & 0xFE;  in lapb_transmit_frmr()
280 		if (lapb->frmr_data.cr == LAPB_RESPONSE)  in lapb_transmit_frmr()
283 		*dptr++ = lapb->frmr_type;  in lapb_transmit_frmr()
286 			 lapb->dev, lapb->state,  in lapb_transmit_frmr()
291 		*dptr++ = lapb->frmr_data.control[0];  in lapb_transmit_frmr()
292 		*dptr   = (lapb->vs << 1) & 0x0E;  in lapb_transmit_frmr()
293 		*dptr  |= (lapb->vr << 5) & 0xE0;  in lapb_transmit_frmr()
294 		if (lapb->frmr_data.cr == LAPB_RESPONSE)  in lapb_transmit_frmr()
297 		*dptr++ = lapb->frmr_type;  in lapb_transmit_frmr()
300 			 lapb->dev, lapb->state, &skb->data[1]);  in lapb_transmit_frmr()
303 	lapb_transmit_buffer(lapb, skb, LAPB_RESPONSE);  in lapb_transmit_frmr()