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/*

 * 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 Public License, incorporated herein by reference.

 */

/*

 *        CAPI encode/decode prototypes and defines

 */

#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_conf(struct pcbit_chan *chan, struct sk_buff *skb);

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

extern __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;

}

#endif