path: root/drivers/net/au1000_eth.c

/*
 *
 * Alchemy Au1x00 ethernet driver
 *
 * Copyright 2001-2003, 2006 MontaVista Software Inc.
 * Copyright 2002 TimeSys Corp.
 * Added ethtool/mii-tool support,
 * Copyright 2004 Matt Porter <mporter@kernel.crashing.org>
 * Update: 2004 Bjoern Riemer, riemer@fokus.fraunhofer.de
 * or riemer@riemer-nt.de: fixed the link beat detection with
 * ioctls (SIOCGMIIPHY)
 * Copyright 2006 Herbert Valerio Riedel <hvr@gnu.org>
 *  converted to use linux-2.6.x's PHY framework
 *
 * Author: MontaVista Software, Inc.
 *         	ppopov@mvista.com or source@mvista.com
 *
 * ########################################################################
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope 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.
 *
 * ########################################################################
 *
 *
 */
#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/in.h>
#include <linux/ioport.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/crc32.h>
#include <linux/phy.h>

#include <asm/cpu.h>
#include <asm/mipsregs.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/processor.h>

#include <au1000.h>
#include <prom.h>

#include "au1000_eth.h"

#ifdef AU1000_ETH_DEBUG
static int au1000_debug = 5;
#else
static int au1000_debug = 3;
#endif

#define DRV_NAME	"au1000_eth"
#define DRV_VERSION	"1.6"
#define DRV_AUTHOR	"Pete Popov <ppopov@embeddedalley.com>"
#define DRV_DESC	"Au1xxx on-chip Ethernet driver"

MODULE_AUTHOR(DRV_AUTHOR);
MODULE_DESCRIPTION(DRV_DESC);
MODULE_LICENSE("GPL");

// prototypes
static void hard_stop(struct net_device *);
static void enable_rx_tx(struct net_device *dev);
static struct net_device * au1000_probe(int port_num);
static int au1000_init(struct net_device *);
static int au1000_open(struct net_device *);
static int au1000_close(struct net_device *);
static int au1000_tx(struct sk_buff *, struct net_device *);
static int au1000_rx(struct net_device *);
static irqreturn_t au1000_interrupt(int, void *);
static void au1000_tx_timeout(struct net_device *);
static void set_rx_mode(struct net_device *);
static int au1000_ioctl(struct net_device *, struct ifreq *, int);
static int mdio_read(struct net_device *, int, int);
static void mdio_write(struct