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/drivers/isdn/pcbit/capi.h

http://github.com/mirrors/linux
C++ Header | 81 lines | 49 code | 19 blank | 13 comment | 5 complexity | 284a6e7d0ede2e34adbe60d6c4550edf MD5 | raw file
 1/*
 2 * CAPI encode/decode prototypes and defines
 3 *
 4 * Copyright (C) 1996 Universidade de Lisboa
 5 *
 6 * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
 7 *
 8 * This software may be used and distributed according to the terms of
 9 * the GNU General Public License, incorporated herein by reference.
10 */
11
12#ifndef CAPI_H
13#define CAPI_H
14
15
16#define REQ_CAUSE         0x01
17#define REQ_DISPLAY       0x04
18#define REQ_USER_TO_USER  0x08
19
20#define AppInfoMask  REQ_CAUSE | REQ_DISPLAY | REQ_USER_TO_USER
21
22/* Connection Setup */
23extern int capi_conn_req(const char *calledPN, struct sk_buff **buf,
24			 int proto);
25extern int capi_decode_conn_conf(struct pcbit_chan *chan, struct sk_buff *skb,
26				 int *complete);
27
28extern int capi_decode_conn_ind(struct pcbit_chan *chan, struct sk_buff *skb,
29				struct callb_data *info);
30extern int capi_conn_resp(struct pcbit_chan *chan, struct sk_buff **skb);
31
32extern int capi_conn_active_req(struct pcbit_chan *chan, struct sk_buff **skb);
33extern int capi_decode_conn_actv_conf(struct pcbit_chan *chan,
34				      struct sk_buff *skb);
35
36extern int capi_decode_conn_actv_ind(struct pcbit_chan *chan,
37				     struct sk_buff *skb);
38extern int capi_conn_active_resp(struct pcbit_chan *chan,
39				 struct sk_buff **skb);
40
41/* Data */
42extern int capi_select_proto_req(struct pcbit_chan *chan, struct sk_buff **skb,
43				 int outgoing);
44extern int capi_decode_sel_proto_conf(struct pcbit_chan *chan,
45				      struct sk_buff *skb);
46
47extern int capi_activate_transp_req(struct pcbit_chan *chan,
48				    struct sk_buff **skb);
49extern int capi_decode_actv_trans_conf(struct pcbit_chan *chan,
50				       struct sk_buff *skb);
51
52extern int capi_tdata_req(struct pcbit_chan *chan, struct sk_buff *skb);
53extern int capi_tdata_resp(struct pcbit_chan *chan, struct sk_buff **skb);
54
55/* Connection Termination */
56extern int capi_disc_req(ushort callref, struct sk_buff **skb, u_char cause);
57
58extern int capi_decode_disc_ind(struct pcbit_chan *chan, struct sk_buff *skb);
59extern int capi_disc_resp(struct pcbit_chan *chan, struct sk_buff **skb);
60
61#ifdef DEBUG
62extern int capi_decode_debug_188(u_char *hdr, ushort hdrlen);
63#endif
64
65static inline struct pcbit_chan *
66capi_channel(struct pcbit_dev *dev, struct sk_buff *skb)
67{
68	ushort callref;
69
70	callref = *((ushort *)skb->data);
71	skb_pull(skb, 2);
72
73	if (dev->b1->callref == callref)
74		return dev->b1;
75	else if (dev->b2->callref == callref)
76		return dev->b2;
77
78	return NULL;
79}
80
81#endif