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/* drivers/atm/firestream.h - FireStream 155 (MB86697) and
 *                            FireStream  50 (MB86695) device driver 
 */
 
/* Written & (C) 2000 by R.E.Wolff@BitWizard.nl 
 * Copied snippets from zatm.c by Werner Almesberger, EPFL LRC/ICA 
 * and ambassador.c Copyright (C) 1995-1999  Madge Networks Ltd 
 */

/*
  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 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  The GNU GPL is contained in /usr/doc/copyright/GPL on a Debian
  system and in the file COPYING in the Linux kernel source.
*/


/***********************************************************************
 *                  first the defines for the chip.                    *
 ***********************************************************************/


/********************* General chip parameters. ************************/

#define FS_NR_FREE_POOLS   8
#define FS_NR_RX_QUEUES    4


/********************* queues and queue access macros ******************/


/* A queue entry. */
struct FS_QENTRY {
	u32 cmd;
	u32 p0, p1, p2;
};


/* A freepool entry. */
struct FS_BPENTRY {
	u32 flags;
	u32 next;
	u32 bsa;
	u32 aal_bufsize;

	/* The hardware doesn't look at this, but we need the SKB somewhere... */
	struct sk_buff *skb;
	struct freepool *fp;
	struct fs_dev *dev;
};


#define STATUS_CODE(qe)  ((qe->cmd >> 22) & 0x3f)


/* OFFSETS against the base of a QUEUE... */
#define QSA     0x00
#define QEA     0x04
#define QRP     0x08
#define QWP     0x0c
#define QCNF    0x10   /* Only for Release queues! */
/* Not for the transmit pending queue. */


/* OFFSETS against the base of a FREE POOL... */
#define FPCNF   0x00
#define FPSA    0x04
#define FPEA    0x08
#define FPCNT   0x0c