root/drivers/isdn/pcbit/capi.h

/* */

INCLUDED FROM

DEFINITIONS

1. capi_channel

   1 /*
   2  * Copyright (C) 1996 Universidade de Lisboa
   3  * 
   4  * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
   5  *
   6  * This software may be used and distributed according to the terms of 
   7  * the GNU Public License, incorporated herein by reference.
   8  */
   9 
  10 /*        
  11  *        CAPI encode/decode prototypes and defines
  12  */
  13 
  14 #ifndef CAPI_H
  15 #define CAPI_H
  16 
  17 
  18 #define REQ_CAUSE         0x01
  19 #define REQ_DISPLAY       0x04
  20 #define REQ_USER_TO_USER  0x08 
  21 
  22 #define AppInfoMask  REQ_CAUSE|REQ_DISPLAY|REQ_USER_TO_USER 
  23 
  24 /* Connection Setup */
  25 extern int capi_conn_req(const char * calledPN, struct sk_buff **buf);
  26 extern int capi_decode_conn_conf(struct pcbit_chan * chan, struct sk_buff *skb,
  27                                  int *complete); 
  28 
  29 extern int capi_decode_conn_ind(struct pcbit_chan * chan, struct sk_buff *skb,
  30                                 struct callb_data *info);
  31 extern int capi_conn_resp(struct pcbit_chan* chan, struct sk_buff **skb);
  32 
  33 extern int capi_conn_active_req(struct pcbit_chan* chan, struct sk_buff **skb);
  34 extern int capi_decode_conn_actv_conf(struct pcbit_chan * chan, 
  35                                       struct sk_buff *skb);
  36 
  37 extern int capi_decode_conn_actv_ind(struct pcbit_chan * chan, 
  38                                      struct sk_buff *skb);
  39 extern int capi_conn_active_resp(struct pcbit_chan* chan, 
  40                                  struct sk_buff **skb);
  41 
  42 /* Data */
  43 extern int capi_select_proto_req(struct pcbit_chan *chan, struct sk_buff **skb,
  44                                  int outgoing);
  45 extern int capi_decode_sel_proto_conf(struct pcbit_chan *chan, 
  46                                       struct sk_buff *skb);
  47 
  48 extern int capi_activate_transp_req(struct pcbit_chan *chan, 
  49                                     struct sk_buff **skb);
  50 extern int capi_decode_actv_trans_conf(struct pcbit_chan *chan, 
  51                                        struct sk_buff *skb);
  52 
  53 extern int capi_tdata_req(struct pcbit_chan* chan, struct sk_buff *skb);
  54 extern int capi_tdata_resp(struct pcbit_chan *chan, struct sk_buff ** skb);
  55 
  56 /* Connection Termination */
  57 extern int capi_disc_req(ushort callref, struct sk_buff **skb, u_char cause);
  58 extern int capi_decode_disc_conf(struct pcbit_chan *chan, struct sk_buff *skb);
  59 
  60 extern int capi_decode_disc_ind(struct pcbit_chan *chan, struct sk_buff *skb);
  61 extern int capi_disc_resp(struct pcbit_chan *chan, struct sk_buff **skb);
  62 
  63 #ifdef DEBUG
  64 extern int capi_decode_debug_188(u_char *hdr, ushort hdrlen);
  65 #endif
  66 
  67 extern __inline__ 
  68 struct pcbit_chan * 
  69 capi_channel(struct pcbit_dev *dev, struct sk_buff *skb)
     /*  */
  70 {
  71         ushort callref;
  72 
  73         callref = *((ushort*) skb->data);
  74         skb_pull(skb, 2);
  75 
  76         if (dev->b1->callref == callref)
  77                 return dev->b1;
  78         else if (dev->b2->callref == callref)
  79                 return dev->b2;
  80 
  81         return NULL;
  82 }
  83 
  84 #endif
  85 
  86 
  87 
  88 
  89 
  90 

/* */