94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/* $NetBSD: i4b_l1l2.h,v 1.7 2002/05/21 10:31:10 martin Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Martin Husemann <martin@netbsd.org>.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _I4B_L1L2_H_
|
|
#define _I4B_L1L2_H_
|
|
|
|
/*
|
|
* This file defines the D-channel interface between layer 1 (physical
|
|
* card hardware) and layer 2 of a passive ISDN card (i.e. a card that
|
|
* does not run it's own ISDN stack in firmware).
|
|
*
|
|
* Since each layer 1 driver knows in advance it will need to attach
|
|
* to this layer 2, the whole layer 2 softc struct is typically included
|
|
* in the layer 1 softc.
|
|
*
|
|
* A back-pointer to the layer 1 softc is included (as void*) in this
|
|
* structure.
|
|
*/
|
|
|
|
typedef void * isdn_layer1token;
|
|
|
|
/*
|
|
* Each driver attaching to layer 2 via this interface provides a pointer
|
|
* to a struct of function pointers used to communicate with layer 1, while
|
|
* layer 1 calls layer 2 functions directly (see below).
|
|
*
|
|
* Layer 1 functions called from layer 2:
|
|
*/
|
|
struct isdn_layer1_bri_driver {
|
|
/* Request to transmit data. */
|
|
int (*ph_data_req)(isdn_layer1token, struct mbuf *, int);
|
|
|
|
/* Request to activate layer 1. */
|
|
int (*ph_activate_req)(isdn_layer1token);
|
|
|
|
/* Request to execute an internal command. */
|
|
int (*mph_command_req)(isdn_layer1token, int, void *);
|
|
};
|
|
|
|
/*
|
|
* Layer 2 functions called by layer 1:
|
|
*/
|
|
|
|
/* Process a rx'd frame */
|
|
int isdn_layer2_data_ind(struct l2_softc * t, struct isdn_l3_driver *, struct mbuf *m);
|
|
|
|
/* Pass a layer 1 activation/deactivation to layer 2. */
|
|
int isdn_layer2_activate_ind(struct l2_softc *, struct isdn_l3_driver *, int);
|
|
|
|
/* Pass trace data to layer 2. */
|
|
struct i4b_trace_hdr; /* from i4b_trace.h */
|
|
int isdn_layer2_trace_ind(struct l2_softc *, struct isdn_l3_driver *, struct i4b_trace_hdr *, size_t, unsigned char *);
|
|
|
|
/* Pass status informations to layer 2. */
|
|
int isdn_layer2_status_ind(struct l2_softc *, struct isdn_l3_driver *, int, int);
|
|
|
|
#endif /* !_I4B_L1L2_H_ */
|
|
|