35 void lapb_clear_queues(struct lapb_cb *lapb)  in lapb_clear_queues()  argument
37 	skb_queue_purge(&lapb->write_queue);  in lapb_clear_queues()
38 	skb_queue_purge(&lapb->ack_queue);  in lapb_clear_queues()
46 void lapb_frames_acked(struct lapb_cb *lapb, unsigned short nr)  in lapb_frames_acked()  argument
51 	modulus = (lapb->mode & LAPB_EXTENDED) ? LAPB_EMODULUS : LAPB_SMODULUS;  in lapb_frames_acked()
56 	if (lapb->va != nr)  in lapb_frames_acked()
57 		while (skb_peek(&lapb->ack_queue) && lapb->va != nr) {  in lapb_frames_acked()
58 			skb = skb_dequeue(&lapb->ack_queue);  in lapb_frames_acked()
60 			lapb->va = (lapb->va + 1) % modulus;  in lapb_frames_acked()
64 void lapb_requeue_frames(struct lapb_cb *lapb)  in lapb_requeue_frames()  argument
73 	while ((skb = skb_dequeue(&lapb->ack_queue)) != NULL) {  in lapb_requeue_frames()
75 			skb_queue_head(&lapb->write_queue, skb);  in lapb_requeue_frames()
77 			skb_append(skb_prev, skb, &lapb->write_queue);  in lapb_requeue_frames()
86 int lapb_validate_nr(struct lapb_cb *lapb, unsigned short nr)  in lapb_validate_nr()  argument
88 	unsigned short vc = lapb->va;  in lapb_validate_nr()
91 	modulus = (lapb->mode & LAPB_EXTENDED) ? LAPB_EMODULUS : LAPB_SMODULUS;  in lapb_validate_nr()
93 	while (vc != lapb->vs) {  in lapb_validate_nr()
99 	return nr == lapb->vs;  in lapb_validate_nr()
106 int lapb_decode(struct lapb_cb *lapb, struct sk_buff *skb,  in lapb_decode()  argument
111 	lapb_dbg(2, "(%p) S%d RX %3ph\n", lapb->dev, lapb->state, skb->data);  in lapb_decode()
119 	if (lapb->mode & LAPB_MLP) {  in lapb_decode()
120 		if (lapb->mode & LAPB_DCE) {  in lapb_decode()
132 		if (lapb->mode & LAPB_DCE) {  in lapb_decode()
147 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_decode()
221 void lapb_send_control(struct lapb_cb *lapb, int frametype,  in lapb_send_control()  argument
232 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_send_control()
240 			dptr[1]  = (lapb->vr << 1);  in lapb_send_control()
248 			*dptr |= (lapb->vr << 5);  in lapb_send_control()
251 	lapb_transmit_buffer(lapb, skb, type);  in lapb_send_control()
258 void lapb_transmit_frmr(struct lapb_cb *lapb)  in lapb_transmit_frmr()  argument
268 	if (lapb->mode & LAPB_EXTENDED) {  in lapb_transmit_frmr()
271 		*dptr++ = lapb->frmr_data.control[0];  in lapb_transmit_frmr()
272 		*dptr++ = lapb->frmr_data.control[1];  in lapb_transmit_frmr()
273 		*dptr++ = (lapb->vs << 1) & 0xFE;  in lapb_transmit_frmr()
274 		*dptr   = (lapb->vr << 1) & 0xFE;  in lapb_transmit_frmr()
275 		if (lapb->frmr_data.cr == LAPB_RESPONSE)  in lapb_transmit_frmr()
278 		*dptr++ = lapb->frmr_type;  in lapb_transmit_frmr()
281 			 lapb->dev, lapb->state,  in lapb_transmit_frmr()
286 		*dptr++ = lapb->frmr_data.control[0];  in lapb_transmit_frmr()
287 		*dptr   = (lapb->vs << 1) & 0x0E;  in lapb_transmit_frmr()
288 		*dptr  |= (lapb->vr << 5) & 0xE0;  in lapb_transmit_frmr()
289 		if (lapb->frmr_data.cr == LAPB_RESPONSE)  in lapb_transmit_frmr()
292 		*dptr++ = lapb->frmr_type;  in lapb_transmit_frmr()
295 			 lapb->dev, lapb->state, &skb->data[1]);  in lapb_transmit_frmr()
298 	lapb_transmit_buffer(lapb, skb, LAPB_RESPONSE);  in lapb_transmit_frmr()