text: /*
   * CAPI encode/decode prototypes and defines
   *
   * Copyright (C) 1996 Universidade de Lisboa
   * 
   * Written by Pedro Roque Marques (pedro_m@yahoo.com)
   *
   * 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_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
  
  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
  
  
  
  
  
  
  