linux-libre/drivers/isdn/hardware/eicon/pr_pc.h

/*
 *
 Copyright (c) Eicon Networks, 2002.
 *
 This source file is supplied for the use with
 Eicon Networks range of DIVA Server Adapters.
 *
 Eicon File Revision :    2.1
 *
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.
 *
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 See the GNU General Public License for more details.
 *
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */
struct pr_ram {
	word NextReq;         /* pointer to next Req Buffer               */
	word NextRc;          /* pointer to next Rc Buffer                */
	word NextInd;         /* pointer to next Ind Buffer               */
	byte ReqInput;        /* number of Req Buffers sent               */
	byte ReqOutput;       /* number of Req Buffers returned           */
	byte ReqReserved;     /* number of Req Buffers reserved           */
	byte Int;             /* ISDN-P interrupt                         */
	byte XLock;           /* Lock field for arbitration               */
	byte RcOutput;        /* number of Rc buffers received            */
	byte IndOutput;       /* number of Ind buffers received           */
	byte IMask;           /* Interrupt Mask Flag                      */
	byte Reserved1[2];    /* reserved field, do not use               */
	byte ReadyInt;        /* request field for ready interrupt        */
	byte Reserved2[12];   /* reserved field, do not use               */
	byte InterfaceType;   /* interface type 1=16K interface           */
	word Signature;       /* ISDN-P initialized indication            */
	byte B[1];            /* buffer space for Req,Ind and Rc          */
};
typedef struct {
	word next;
	byte Req;
	byte ReqId;
	byte ReqCh;
	byte Reserved1;
	word Reference;
	byte Reserved[8];
	PBUFFER XBuffer;
} REQ;
typedef struct {
	word next;
	byte Rc;
	byte RcId;
	byte RcCh;
	byte Reserved1;
	word Reference;
	byte Reserved2[8];
} RC;
typedef struct {
	word next;
	byte Ind;
	byte IndId;
	byte IndCh;
	byte MInd;
	word MLength;
	word Reference;
	byte RNR;
	byte Reserved;
	dword Ack;
	PBUFFER RBuffer;
} IND;