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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/drivers/isdn/pcbit/capi.h
15112 views
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/*

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 * CAPI encode/decode prototypes and defines

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 *

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 * Copyright (C) 1996 Universidade de Lisboa

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 * 

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 * Written by Pedro Roque Marques ([email protected])

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 *

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 * This software may be used and distributed according to the terms of 

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 * the GNU General Public License, incorporated herein by reference.

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 */

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#ifndef CAPI_H

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#define CAPI_H

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#define REQ_CAUSE         0x01

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#define REQ_DISPLAY       0x04

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#define REQ_USER_TO_USER  0x08 

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#define AppInfoMask  REQ_CAUSE|REQ_DISPLAY|REQ_USER_TO_USER 

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/* Connection Setup */

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extern int capi_conn_req(const char * calledPN, struct sk_buff **buf,

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			 int proto);

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extern int capi_decode_conn_conf(struct pcbit_chan * chan, struct sk_buff *skb,

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				 int *complete); 

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extern int capi_decode_conn_ind(struct pcbit_chan * chan, struct sk_buff *skb,

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				struct callb_data *info);

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extern int capi_conn_resp(struct pcbit_chan* chan, struct sk_buff **skb);

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extern int capi_conn_active_req(struct pcbit_chan* chan, struct sk_buff **skb);

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extern int capi_decode_conn_actv_conf(struct pcbit_chan * chan, 

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				      struct sk_buff *skb);

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extern int capi_decode_conn_actv_ind(struct pcbit_chan * chan, 

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				     struct sk_buff *skb);

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extern int capi_conn_active_resp(struct pcbit_chan* chan, 

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				 struct sk_buff **skb);

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/* Data */

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extern int capi_select_proto_req(struct pcbit_chan *chan, struct sk_buff **skb,

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				 int outgoing);

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extern int capi_decode_sel_proto_conf(struct pcbit_chan *chan, 

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				      struct sk_buff *skb);

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extern int capi_activate_transp_req(struct pcbit_chan *chan, 

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				    struct sk_buff **skb);

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extern int capi_decode_actv_trans_conf(struct pcbit_chan *chan, 

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				       struct sk_buff *skb);

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extern int capi_tdata_req(struct pcbit_chan* chan, struct sk_buff *skb);

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extern int capi_tdata_resp(struct pcbit_chan *chan, struct sk_buff ** skb);

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/* Connection Termination */

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extern int capi_disc_req(ushort callref, struct sk_buff **skb, u_char cause);

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extern int capi_decode_disc_ind(struct pcbit_chan *chan, struct sk_buff *skb);

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extern int capi_disc_resp(struct pcbit_chan *chan, struct sk_buff **skb);

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#ifdef DEBUG

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extern int capi_decode_debug_188(u_char *hdr, ushort hdrlen);

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#endif

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static inline struct pcbit_chan * 

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capi_channel(struct pcbit_dev *dev, struct sk_buff *skb)

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{

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	ushort callref;

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	callref = *((ushort*) skb->data);

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	skb_pull(skb, 2);

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	if (dev->b1->callref == callref)

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		return dev->b1;

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	else if (dev->b2->callref == callref)

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		return dev->b2;

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	return NULL;

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}

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#endif

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