The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i4b/include/i4b_l1l2.h

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    1 /*-
    2  * Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23  * SUCH DAMAGE.
   24  */
   25 
   26 /*---------------------------------------------------------------------------
   27  *
   28  *      i4b_l1l2.h - i4b layer 1 / layer 2 interactions
   29  *      ---------------------------------------------------
   30  *
   31  * $FreeBSD: src/sys/i4b/include/i4b_l1l2.h,v 1.8.8.1 2005/01/31 23:26:08 imp Exp $
   32  *
   33  *      last edit-date: [Sat Mar  9 15:54:49 2002]
   34  *
   35  *---------------------------------------------------------------------------*/
   36 
   37 #ifndef _I4B_L1L2_H_
   38 #define _I4B_L1L2_H_
   39 
   40 #include <machine/i4b_trace.h>
   41 
   42 extern struct i4b_l1l2_func i4b_l1l2_func;
   43 
   44 struct i4b_l1l2_func
   45 {
   46         /* Layer 1 --> Layer 2 */
   47         /* =================== */
   48 
   49         int     (*PH_DATA_IND) (int, struct mbuf *);
   50         int     (*PH_ACTIVATE_IND) (int);
   51         int     (*PH_DEACTIVATE_IND) (int);
   52 
   53 #define PH_Data_Ind(unit, data)         \
   54         ((*i4b_l1l2_func.PH_DATA_IND)(unit, data))
   55 #define PH_Act_Ind(unit)                \
   56         ((*i4b_l1l2_func.PH_ACTIVATE_IND)(unit))
   57 #define PH_Deact_Ind(unit)              \
   58         ((*i4b_l1l2_func.PH_DEACTIVATE_IND)(unit))
   59 
   60 
   61         /* Layer 2 --> Layer 1 */       
   62         /* =================== */
   63         
   64         int     (*PH_DATA_REQ) (int, struct mbuf *, int);
   65         int     (*PH_ACTIVATE_REQ) (int);
   66 
   67 #define PH_Data_Req(unit, data, freeflag)       \
   68         ((*i4b_l1l2_func.PH_DATA_REQ)(unit, data, freeflag))
   69 #define PH_Act_Req(unit)                        \
   70         ((*i4b_l1l2_func.PH_ACTIVATE_REQ)(unit))
   71 
   72         /* Layer 1 --> upstream, ISDN trace data */
   73         /* ===================================== */
   74         int     (*MPH_TRACE_IND) (i4b_trace_hdr_t *, int, unsigned char *);
   75 
   76 #define MPH_Trace_Ind(header, length, pointer)  \
   77         ((*i4b_l1l2_func.MPH_TRACE_IND)(header, length, pointer))
   78 
   79         /* L1/L2 management command and status information */
   80         /* =============================================== */
   81         int     (*MPH_STATUS_IND) (int, int, int);
   82         int     (*MPH_COMMAND_REQ) (int, int, void *);
   83 
   84 #define MPH_Status_Ind(unit, status, parm)      \
   85         ((*i4b_l1l2_func.MPH_STATUS_IND)(unit, status, parm))
   86 #define MPH_Command_Req(unit, command, parm)    \
   87         ((*i4b_l1l2_func.MPH_COMMAND_REQ)(unit, command, parm))
   88 };
   89         
   90 #endif /* _I4B_L1L2_H_ */

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