capi.h
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/*
* 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;
}
#endif