linux-imx

/*

 * Linux ARCnet driver - COM20020 PCMCIA support

 *

 * Written 1994-1999 by Avery Pennarun,

 *    based on an ISA version by David Woodhouse.

 * Derived from ibmtr_cs.c by Steve Kipisz (pcmcia-cs 3.1.4)

 *    which was derived from pcnet_cs.c by David Hinds.

 * Some additional portions derived from skeleton.c by Donald Becker.

 *

 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)

 *  for sponsoring the further development of this driver.

 *

 * **********************

 *

 * The original copyright of skeleton.c was as follows:

 *

 * skeleton.c Written 1993 by Donald Becker.

 * Copyright 1993 United States Government as represented by the

 * Director, National Security Agency.  This software may only be used

 * and distributed according to the terms of the GNU General Public License as

 * modified by SRC, incorporated herein by reference.

 *

 * **********************

 * Changes:

 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000

 * - reorganize kmallocs in com20020_attach, checking all for failure

 *   and releasing the previous allocations if one fails

 * **********************

 *

 * For more details, see drivers/net/arcnet.c

 *

 * **********************

 */

​

#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt

​

#include <linux/kernel.h>

#include <linux/ptrace.h>

#include <linux/slab.h>

#include <linux/string.h>

#include <linux/timer.h>

#include <linux/delay.h>

#include <linux/module.h>

#include <linux/netdevice.h>

#include <linux/io.h>

#include <pcmcia/cistpl.h>

#include <pcmcia/ds.h>

​

#include "arcdevice.h"

#include "com20020.h"

​

static void regdump(struct net_device *dev)

{

#ifdef DEBUG

    int ioaddr = dev->base_addr;

    int count;

​

    netdev_dbg(dev, "register dump:\n");

    for (count = 0; count < 16; count++) {

        if (!(count % 16))

            pr_cont("%04X:", ioaddr + count);

        pr_cont(" %02X", arcnet_inb(ioaddr, count));

    }

    pr_cont("\n");

​

    netdev_dbg(dev, "buffer0 dump:\n");

    /* set up the address register */

    count = 0;

    arcnet_outb((count >> 8) | RDDATAflag | AUTOINCflag,

            ioaddr, com20020_REG_W_ADDR_HI);

    arcnet_outb(count & 0xff, ioaddr, COM20020_REG_W_ADDR_LO);

​

    for (count = 0; count < 256 + 32; count++) {

        if (!(count % 16))

            pr_cont("%04X:", count);

​

        /* copy the data */

        pr_cont(" %02X", arcnet_inb(ioaddr, COM20020_REG_RW_MEMDATA));

    }

    pr_cont("\n");

#endif

}

​

/*====================================================================*/

​

/* Parameters that can be set with 'insmod' */

​

static int node;

static int timeout = 3;

static int backplane;

static int clockp;

static int clockm;