linux-imx

/* 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

#define FPCTU   0x10

​

#define Q_SA(b)     (b + QSA )

#define Q_EA(b)     (b + QEA )

#define Q_RP(b)     (b + QRP )

#define Q_WP(b)     (b + QWP )

#define Q_CNF(b)    (b + QCNF)

​

#define FP_CNF(b)   (b + FPCNF)

#define FP_SA(b)    (b + FPSA)

#define FP_EA(b)    (b + FPEA)