Release 4.7 drivers/staging/i4l/pcbit/capi.h

/*
 * CAPI encode/decode prototypes and defines
 *
 * Copyright (C) 1996 Universidade de Lisboa
 *
 * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
 *
 * This software may be used and distributed according to the terms of
 * the GNU General Public License, incorporated herein by reference.
 */

#ifndef CAPI_H

#define CAPI_H



#define REQ_CAUSE         0x01

#define REQ_DISPLAY       0x04

#define REQ_USER_TO_USER  0x08


#define AppInfoMask  (REQ_CAUSE | REQ_DISPLAY | REQ_USER_TO_USER)

/* Connection Setup */
extern int capi_conn_req(const char *calledPN, struct sk_buff **buf,
			 int proto);
extern int capi_decode_conn_conf(struct pcbit_chan *chan, struct sk_buff *skb,
				 int *complete);

extern int capi_decode_conn_ind(struct pcbit_chan *chan, struct sk_buff *skb,
				struct callb_data *info);
extern int capi_conn_resp(struct pcbit_chan *chan, struct sk_buff **skb);

extern int capi_conn_active_req(struct pcbit_chan *chan, struct sk_buff **skb);
extern int capi_decode_conn_actv_conf(struct pcbit_chan *chan,
				      struct sk_buff *skb);

extern int capi_decode_conn_actv_ind(struct pcbit_chan *chan,
				     struct sk_buff *skb);
extern int capi_conn_active_resp(struct pcbit_chan *chan,
				 struct sk_buff **skb);

/* Data */
extern int capi_select_proto_req(struct pcbit_chan *chan, struct sk_buff **skb,
				 int outgoing);
extern int capi_decode_sel_proto_conf(struct pcbit_chan *chan,
				      struct sk_buff *skb);

extern int capi_activate_transp_req(struct pcbit_chan *chan,
				    struct sk_buff **skb);
extern int capi_decode_actv_trans_conf(struct pcbit_chan *chan,
				       struct sk_buff *skb);

extern int capi_tdata_req(struct pcbit_chan *chan, struct sk_buff *skb);
extern int capi_tdata_resp(struct pcbit_chan *chan, struct sk_buff **skb);

/* Connection Termination */
extern int capi_disc_req(ushort callref, struct sk_buff **skb, u_char cause);

extern int capi_decode_disc_ind(struct pcbit_chan *chan, struct sk_buff *skb);
extern int capi_disc_resp(struct pcbit_chan *chan, struct sk_buff **skb);

#ifdef DEBUG
extern int capi_decode_debug_188(u_char *hdr, ushort hdrlen);
#endif


static inline struct pcbit_chan *

capi_channel(struct pcbit_dev *dev, struct sk_buff *skb)
{
	ushort callref;

	callref = *((ushort *)skb->data);
	skb_pull(skb, 2);

	if (dev->b1->callref == callref)
		return dev->b1;
	else if (dev->b2->callref == callref)
		return dev->b2;

	return NULL;
}

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#endif
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Directory: drivers/staging/i4l/pcbit

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