/* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */
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/*
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Written 1993-2000 by Donald Becker.
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Copyright 1994-2000 by Donald Becker.
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Copyright 1993 United States Government as represented by the
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Director, National Security Agency. This software may be used and
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distributed according to the terms of the GNU General Public License,
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incorporated herein by reference.
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This driver is for the 3Com EtherLinkIII series.
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The author may be reached as becker@scyld.com, or C/O
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Scyld Computing Corporation
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410 Severn Ave., Suite 210
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Annapolis MD 21403
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Known limitations:
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Because of the way 3c509 ISA detection works it's difficult to predict
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a priori which of several ISA-mode cards will be detected first.
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This driver does not use predictive interrupt mode, resulting in higher
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packet latency but lower overhead. If interrupts are disabled for an
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unusually long time it could also result in missed packets, but in
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practice this rarely happens.
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FIXES:
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Alan Cox: Removed the 'Unexpected interrupt' bug.
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Michael Meskes: Upgraded to Donald Becker's version 1.07.
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Alan Cox: Increased the eeprom delay. Regardless of
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what the docs say some people definitely
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get problems with lower (but in card spec)
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delays
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v1.10 4/21/97 Fixed module code so that multiple cards may be detected,
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other cleanups. -djb
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Andrea Arcangeli: Upgraded to Donald Becker's version 1.12.
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Rick Payne: Fixed SMP race condition
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v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb
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v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb
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v1.15 1/31/98 Faster recovery for Tx errors. -djb
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v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb
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v1.18 12Mar2001 Andrew Morton
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- Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz)
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- Reviewed against 1.18 from scyld.com
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v1.18a 17Nov2001 Jeff Garzik <jgarzik@pobox.com>
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- ethtool support
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v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com>
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- Power Management support
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v1.18c 1Mar2002 David Ruggiero <jdr@farfalle.com>
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- Full duplex support
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v1.19 16Oct2002 Zwane Mwaikambo <zwane@linuxpower.ca>
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- Additional ethtool features
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v1.19a 28Oct2002 Davud Ruggiero <jdr@farfalle.com>
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- Increase *read_eeprom udelay to workaround oops with 2 cards.
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v1.19b 08Nov2002 Marc Zyngier <maz@wild-wind.fr.eu.org>
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- Introduce driver model for EISA cards.
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v1.20 04Feb2008 Ondrej Zary <linux@rainbow-software.org>
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- convert to isa_driver and pnp_driver and some cleanups
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*/
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#define DRV_NAME "3c509"
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/* A few values that may be tweaked. */
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/* Time in jiffies before concluding the transmitter is hung. */
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#define TX_TIMEOUT (400*HZ/1000)
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#include <linux/module.h>
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#include <linux/isa.h>
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#include <linux/pnp.h>
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#include <linux/string.h>
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#include <linux/interrupt.h>
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#include <linux/errno.h>
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#include <linux/in.h>
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#include <linux/ioport.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/pm.h>
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#include <linux/skbuff.h>
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#include <linux/delay.h> /* for udelay() */
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#include <linux/spinlock.h>
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#include <linux/ethtool.h>
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#include <linux/device.h>
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#include <linux/eisa.h>
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#include <linux/bitops.h>
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#include <linux/uaccess.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#ifdef EL3_DEBUG
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static int el3_debug = EL3_DEBUG;
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#else
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static int el3_debug = 2;
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#endif
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/* Used to do a global count of all the cards in the system. Must be
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* a global variable so that the eisa probe routines can increment
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* it */
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static int el3_cards = 0;
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#define EL3_MAX_CARDS 8
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/* To minimize the size of the driver source I only define operating
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constants if they are used several times. You'll need the manual
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anyway if you want to understand driver details. */
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/* Offsets from base I/O address. */
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#define EL3_DATA 0x00
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#define EL3_CMD 0x0e
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#define EL3_STATUS 0x0e
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#define EEPROM_READ 0x80
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#define EL3_IO_EXTENT 16
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#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
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/* The top five bits written to EL3_CMD are a command, the lower
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11 bits are the parameter, if applicable. */
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enum c509cmd {
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TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
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RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
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TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
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FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
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SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
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SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
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StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11,
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PowerDown = 28<<11, PowerAuto = 29<<11};
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enum c509status {
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IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
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TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
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IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, };
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/* The SetRxFilter command accepts the following classes: */
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enum RxFilter {
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RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
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/* Register window 1 offsets, the window used in normal operation. */
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#define TX_FIFO 0x00
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#define RX_FIFO 0x00
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#define RX_STATUS 0x08
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#define TX_STATUS 0x0B
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#define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
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#define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */
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#define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */
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#define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
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#define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
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#define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
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#define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */
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#define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */
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/*
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* Must be a power of two (we use a binary and in the
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* circular queue)
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*/
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#define SKB_QUEUE_SIZE 64
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enum el3_cardtype { EL3_ISA, EL3_PNP, EL3_EISA };
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struct el3_private {
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spinlock_t lock;
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/* skb send-queue */
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int head, size;
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struct sk_buff *queue[SKB_QUEUE_SIZE];
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enum el3_cardtype type;
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};
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static int id_port;
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static int current_tag;
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static struct net_device *el3_devs[EL3_MAX_CARDS];
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/* Parameters that may be passed into the module. */
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static int debug = -1;
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static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
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/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
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static int max_interrupt_work = 10;
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#ifdef CONFIG_PNP
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static int nopnp;
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#endif
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static int el3_common_init(struct net_device *dev);
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static void el3_common_remove(struct net_device *dev);
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static ushort id_read_eeprom(int index);
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static ushort read_eeprom(int ioaddr, int index);
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static int el3_open(struct net_device *dev);
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static netdev_tx_t el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
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static irqreturn_t el3_interrupt(int irq, void *dev_id);
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static void update_stats(struct net_device *dev);
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static struct net_device_stats *el3_get_stats(struct net_device *dev);
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static int el3_rx(struct net_device *dev);
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static int el3_close(struct net_device *dev);
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static void set_multicast_list(struct net_device *dev);
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static void el3_tx_timeout (struct net_device *dev, unsigned int txqueue);
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static void el3_down(struct net_device *dev);
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static void el3_up(struct net_device *dev);
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static const struct ethtool_ops ethtool_ops;
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#ifdef CONFIG_PM
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static int el3_suspend(struct device *, pm_message_t);
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static int el3_resume(struct device *);
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#else
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#define el3_suspend NULL
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#define el3_resume NULL
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#endif
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/* generic device remove for all device types */
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static int el3_device_remove (struct device *device);
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#ifdef CONFIG_NET_POLL_CONTROLLER
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static void el3_poll_controller(struct net_device *dev);
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#endif
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/* Return 0 on success, 1 on error, 2 when found already detected PnP card */
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static int el3_isa_id_sequence(__be16 *phys_addr)
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{
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short lrs_state = 0xff;
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int i;
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/* ISA boards are detected by sending the ID sequence to the
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ID_PORT. We find cards past the first by setting the 'current_tag'
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on cards as they are found. Cards with their tag set will not
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respond to subsequent ID sequences. */
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outb(0x00, id_port);
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outb(0x00, id_port);
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for (i = 0; i < 255; i++) {
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outb(lrs_state, id_port);
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lrs_state <<= 1;
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lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
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}
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/* For the first probe, clear all board's tag registers. */
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if (current_tag == 0)
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outb(0xd0, id_port);
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else /* Otherwise kill off already-found boards. */
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outb(0xd8, id_port);
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if (id_read_eeprom(7) != 0x6d50)
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return 1;
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/* Read in EEPROM data, which does contention-select.
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Only the lowest address board will stay "on-line".
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3Com got the byte order backwards. */
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for (i = 0; i < 3; i++)
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phys_addr[i] = htons(id_read_eeprom(i));
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#ifdef CONFIG_PNP
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if (!nopnp) {
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/* The ISA PnP 3c509 cards respond to the ID sequence too.
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This check is needed in order not to register them twice. */
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for (i = 0; i < el3_cards; i++) {
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struct el3_private *lp = netdev_priv(el3_devs[i]);
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if (lp->type == EL3_PNP &&
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ether_addr_equal((u8 *)phys_addr, el3_devs[i]->dev_addr)) {
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if (el3_debug > 3)
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pr_debug("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
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phys_addr[0] & 0xff, phys_addr[0] >> 8,
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phys_addr[1] & 0xff, phys_addr[1] >> 8,
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phys_addr[2] & 0xff, phys_addr[2] >> 8);
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/* Set the adaptor tag so that the next card can be found. */
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outb(0xd0 + ++current_tag, id_port);
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return 2;
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}
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}
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}
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#endif /* CONFIG_PNP */
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return 0;
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}
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static void el3_dev_fill(struct net_device *dev, __be16 *phys_addr, int ioaddr,
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int irq, int if_port, enum el3_cardtype type)
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{
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struct el3_private *lp = netdev_priv(dev);
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memcpy(dev->dev_addr, phys_addr, ETH_ALEN);
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dev->base_addr = ioaddr;
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dev->irq = irq;
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dev->if_port = if_port;
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lp->type = type;
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}
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static int el3_isa_match(struct device *pdev, unsigned int ndev)
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{
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struct net_device *dev;
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int ioaddr, isa_irq, if_port, err;
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unsigned int iobase;
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__be16 phys_addr[3];
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while ((err = el3_isa_id_sequence(phys_addr)) == 2)
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; /* Skip to next card when PnP card found */
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if (err == 1)
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return 0;
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iobase = id_read_eeprom(8);
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if_port = iobase >> 14;
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ioaddr = 0x200 + ((iobase & 0x1f) << 4);
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if (irq[el3_cards] > 1 && irq[el3_cards] < 16)
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isa_irq = irq[el3_cards];
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else
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isa_irq = id_read_eeprom(9) >> 12;
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dev = alloc_etherdev(sizeof(struct el3_private));
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if (!dev)
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return -ENOMEM;
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SET_NETDEV_DEV(dev, pdev);
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netdev_boot_setup_check(dev);
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if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-isa")) {
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free_netdev(dev);
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return 0;
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}
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/* Set the adaptor tag so that the next card can be found. */
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outb(0xd0 + ++current_tag, id_port);
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/* Activate the adaptor at the EEPROM location. */
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outb((ioaddr >> 4) | 0xe0, id_port);
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EL3WINDOW(0);
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if (inw(ioaddr) != 0x6d50) {
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free_netdev(dev);
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return 0;
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}
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/* Free the interrupt so that some other card can use it. */
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outw(0x0f00, ioaddr + WN0_IRQ);
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el3_dev_fill(dev, phys_addr, ioaddr, isa_irq, if_port, EL3_ISA);
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dev_set_drvdata(pdev, dev);
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if (el3_common_init(dev)) {
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free_netdev(dev);
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return 0;
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}
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el3_devs[el3_cards++] = dev;
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return 1;
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}
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static int el3_isa_remove(struct device *pdev,
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unsigned int ndev)
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{
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el3_device_remove(pdev);
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dev_set_drvdata(pdev, NULL);
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return 0;
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}
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#ifdef CONFIG_PM
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static int el3_isa_suspend(struct device *dev, unsigned int n,
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pm_message_t state)
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{
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current_tag = 0;
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return el3_suspend(dev, state);
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}
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static int el3_isa_resume(struct device *dev, unsigned int n)
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{
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struct net_device *ndev = dev_get_drvdata(dev);
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int ioaddr = ndev->base_addr, err;
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__be16 phys_addr[3];
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while ((err = el3_isa_id_sequence(phys_addr)) == 2)
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; /* Skip to next card when PnP card found */
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if (err == 1)
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return 0;
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/* Set the adaptor tag so that the next card can be found. */
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outb(0xd0 + ++current_tag, id_port);
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/* Enable the card */
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outb((ioaddr >> 4) | 0xe0, id_port);
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EL3WINDOW(0);
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if (inw(ioaddr) != 0x6d50)
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return 1;
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/* Free the interrupt so that some other card can use it. */
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outw(0x0f00, ioaddr + WN0_IRQ);
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return el3_resume(dev);
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}
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#endif
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static struct isa_driver el3_isa_driver = {
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.match = el3_isa_match,
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.remove = el3_isa_remove,
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#ifdef CONFIG_PM
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.suspend = el3_isa_suspend,
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.resume = el3_isa_resume,
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#endif
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.driver = {
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.name = "3c509"
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},
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};
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static int isa_registered;
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#ifdef CONFIG_PNP
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static const struct pnp_device_id el3_pnp_ids[] = {
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{ .id = "TCM5090" }, /* 3Com Etherlink III (TP) */
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{ .id = "TCM5091" }, /* 3Com Etherlink III */
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{ .id = "TCM5094" }, /* 3Com Etherlink III (combo) */
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{ .id = "TCM5095" }, /* 3Com Etherlink III (TPO) */
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{ .id = "TCM5098" }, /* 3Com Etherlink III (TPC) */
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{ .id = "PNP80f7" }, /* 3Com Etherlink III compatible */
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{ .id = "PNP80f8" }, /* 3Com Etherlink III compatible */
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{ .id = "" }
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};
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MODULE_DEVICE_TABLE(pnp, el3_pnp_ids);
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static int el3_pnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *id)
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{
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short i;
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int ioaddr, irq, if_port;
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__be16 phys_addr[3];
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struct net_device *dev = NULL;
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int err;
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ioaddr = pnp_port_start(pdev, 0);
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if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-pnp"))
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return -EBUSY;
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irq = pnp_irq(pdev, 0);
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EL3WINDOW(0);
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for (i = 0; i < 3; i++)
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phys_addr[i] = htons(read_eeprom(ioaddr, i));
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if_port = read_eeprom(ioaddr, 8) >> 14;
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dev = alloc_etherdev(sizeof(struct el3_private));
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if (!dev) {
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release_region(ioaddr, EL3_IO_EXTENT);
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return -ENOMEM;
|
}
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SET_NETDEV_DEV(dev, &pdev->dev);
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netdev_boot_setup_check(dev);
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el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_PNP);
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pnp_set_drvdata(pdev, dev);
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err = el3_common_init(dev);
|
|
if (err) {
|
pnp_set_drvdata(pdev, NULL);
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free_netdev(dev);
|
return err;
|
}
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el3_devs[el3_cards++] = dev;
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return 0;
|
}
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static void el3_pnp_remove(struct pnp_dev *pdev)
|
{
|
el3_common_remove(pnp_get_drvdata(pdev));
|
pnp_set_drvdata(pdev, NULL);
|
}
|
|
#ifdef CONFIG_PM
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static int el3_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
|
{
|
return el3_suspend(&pdev->dev, state);
|
}
|
|
static int el3_pnp_resume(struct pnp_dev *pdev)
|
{
|
return el3_resume(&pdev->dev);
|
}
|
#endif
|
|
static struct pnp_driver el3_pnp_driver = {
|
.name = "3c509",
|
.id_table = el3_pnp_ids,
|
.probe = el3_pnp_probe,
|
.remove = el3_pnp_remove,
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#ifdef CONFIG_PM
|
.suspend = el3_pnp_suspend,
|
.resume = el3_pnp_resume,
|
#endif
|
};
|
static int pnp_registered;
|
#endif /* CONFIG_PNP */
|
|
#ifdef CONFIG_EISA
|
static const struct eisa_device_id el3_eisa_ids[] = {
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{ "TCM5090" },
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{ "TCM5091" },
|
{ "TCM5092" },
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{ "TCM5093" },
|
{ "TCM5094" },
|
{ "TCM5095" },
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{ "TCM5098" },
|
{ "" }
|
};
|
MODULE_DEVICE_TABLE(eisa, el3_eisa_ids);
|
|
static int el3_eisa_probe (struct device *device);
|
|
static struct eisa_driver el3_eisa_driver = {
|
.id_table = el3_eisa_ids,
|
.driver = {
|
.name = "3c579",
|
.probe = el3_eisa_probe,
|
.remove = el3_device_remove,
|
.suspend = el3_suspend,
|
.resume = el3_resume,
|
}
|
};
|
static int eisa_registered;
|
#endif
|
|
static const struct net_device_ops netdev_ops = {
|
.ndo_open = el3_open,
|
.ndo_stop = el3_close,
|
.ndo_start_xmit = el3_start_xmit,
|
.ndo_get_stats = el3_get_stats,
|
.ndo_set_rx_mode = set_multicast_list,
|
.ndo_tx_timeout = el3_tx_timeout,
|
.ndo_set_mac_address = eth_mac_addr,
|
.ndo_validate_addr = eth_validate_addr,
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
.ndo_poll_controller = el3_poll_controller,
|
#endif
|
};
|
|
static int el3_common_init(struct net_device *dev)
|
{
|
struct el3_private *lp = netdev_priv(dev);
|
int err;
|
const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"};
|
|
spin_lock_init(&lp->lock);
|
|
if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */
|
dev->if_port = (dev->mem_start & 0x0f);
|
} else { /* xcvr codes 0/8 */
|
/* use eeprom value, but save user's full-duplex selection */
|
dev->if_port |= (dev->mem_start & 0x08);
|
}
|
|
/* The EL3-specific entries in the device structure. */
|
dev->netdev_ops = &netdev_ops;
|
dev->watchdog_timeo = TX_TIMEOUT;
|
dev->ethtool_ops = ðtool_ops;
|
|
err = register_netdev(dev);
|
if (err) {
|
pr_err("Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n",
|
dev->base_addr, dev->irq);
|
release_region(dev->base_addr, EL3_IO_EXTENT);
|
return err;
|
}
|
|
pr_info("%s: 3c5x9 found at %#3.3lx, %s port, address %pM, IRQ %d.\n",
|
dev->name, dev->base_addr, if_names[(dev->if_port & 0x03)],
|
dev->dev_addr, dev->irq);
|
|
return 0;
|
|
}
|
|
static void el3_common_remove (struct net_device *dev)
|
{
|
unregister_netdev (dev);
|
release_region(dev->base_addr, EL3_IO_EXTENT);
|
free_netdev (dev);
|
}
|
|
#ifdef CONFIG_EISA
|
static int el3_eisa_probe(struct device *device)
|
{
|
short i;
|
int ioaddr, irq, if_port;
|
__be16 phys_addr[3];
|
struct net_device *dev = NULL;
|
struct eisa_device *edev;
|
int err;
|
|
/* Yeepee, The driver framework is calling us ! */
|
edev = to_eisa_device (device);
|
ioaddr = edev->base_addr;
|
|
if (!request_region(ioaddr, EL3_IO_EXTENT, "3c579-eisa"))
|
return -EBUSY;
|
|
/* Change the register set to the configuration window 0. */
|
outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD);
|
|
irq = inw(ioaddr + WN0_IRQ) >> 12;
|
if_port = inw(ioaddr + 6)>>14;
|
for (i = 0; i < 3; i++)
|
phys_addr[i] = htons(read_eeprom(ioaddr, i));
|
|
/* Restore the "Product ID" to the EEPROM read register. */
|
read_eeprom(ioaddr, 3);
|
|
dev = alloc_etherdev(sizeof (struct el3_private));
|
if (dev == NULL) {
|
release_region(ioaddr, EL3_IO_EXTENT);
|
return -ENOMEM;
|
}
|
|
SET_NETDEV_DEV(dev, device);
|
netdev_boot_setup_check(dev);
|
|
el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_EISA);
|
eisa_set_drvdata (edev, dev);
|
err = el3_common_init(dev);
|
|
if (err) {
|
eisa_set_drvdata (edev, NULL);
|
free_netdev(dev);
|
return err;
|
}
|
|
el3_devs[el3_cards++] = dev;
|
return 0;
|
}
|
#endif
|
|
/* This remove works for all device types.
|
*
|
* The net dev must be stored in the driver data field */
|
static int el3_device_remove(struct device *device)
|
{
|
struct net_device *dev;
|
|
dev = dev_get_drvdata(device);
|
|
el3_common_remove (dev);
|
return 0;
|
}
|
|
/* Read a word from the EEPROM using the regular EEPROM access register.
|
Assume that we are in register window zero.
|
*/
|
static ushort read_eeprom(int ioaddr, int index)
|
{
|
outw(EEPROM_READ + index, ioaddr + 10);
|
/* Pause for at least 162 us. for the read to take place.
|
Some chips seem to require much longer */
|
mdelay(2);
|
return inw(ioaddr + 12);
|
}
|
|
/* Read a word from the EEPROM when in the ISA ID probe state. */
|
static ushort id_read_eeprom(int index)
|
{
|
int bit, word = 0;
|
|
/* Issue read command, and pause for at least 162 us. for it to complete.
|
Assume extra-fast 16Mhz bus. */
|
outb(EEPROM_READ + index, id_port);
|
|
/* Pause for at least 162 us. for the read to take place. */
|
/* Some chips seem to require much longer */
|
mdelay(4);
|
|
for (bit = 15; bit >= 0; bit--)
|
word = (word << 1) + (inb(id_port) & 0x01);
|
|
if (el3_debug > 3)
|
pr_debug(" 3c509 EEPROM word %d %#4.4x.\n", index, word);
|
|
return word;
|
}
|
|
|
static int
|
el3_open(struct net_device *dev)
|
{
|
int ioaddr = dev->base_addr;
|
int i;
|
|
outw(TxReset, ioaddr + EL3_CMD);
|
outw(RxReset, ioaddr + EL3_CMD);
|
outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
|
|
i = request_irq(dev->irq, el3_interrupt, 0, dev->name, dev);
|
if (i)
|
return i;
|
|
EL3WINDOW(0);
|
if (el3_debug > 3)
|
pr_debug("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
|
dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
|
|
el3_up(dev);
|
|
if (el3_debug > 3)
|
pr_debug("%s: Opened 3c509 IRQ %d status %4.4x.\n",
|
dev->name, dev->irq, inw(ioaddr + EL3_STATUS));
|
|
return 0;
|
}
|
|
static void
|
el3_tx_timeout (struct net_device *dev, unsigned int txqueue)
|
{
|
int ioaddr = dev->base_addr;
|
|
/* Transmitter timeout, serious problems. */
|
pr_warn("%s: transmit timed out, Tx_status %2.2x status %4.4x Tx FIFO room %d\n",
|
dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
|
inw(ioaddr + TX_FREE));
|
dev->stats.tx_errors++;
|
netif_trans_update(dev); /* prevent tx timeout */
|
/* Issue TX_RESET and TX_START commands. */
|
outw(TxReset, ioaddr + EL3_CMD);
|
outw(TxEnable, ioaddr + EL3_CMD);
|
netif_wake_queue(dev);
|
}
|
|
|
static netdev_tx_t
|
el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
{
|
struct el3_private *lp = netdev_priv(dev);
|
int ioaddr = dev->base_addr;
|
unsigned long flags;
|
|
netif_stop_queue (dev);
|
|
dev->stats.tx_bytes += skb->len;
|
|
if (el3_debug > 4) {
|
pr_debug("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
|
dev->name, skb->len, inw(ioaddr + EL3_STATUS));
|
}
|
/*
|
* We lock the driver against other processors. Note
|
* we don't need to lock versus the IRQ as we suspended
|
* that. This means that we lose the ability to take
|
* an RX during a TX upload. That sucks a bit with SMP
|
* on an original 3c509 (2K buffer)
|
*
|
* Using disable_irq stops us crapping on other
|
* time sensitive devices.
|
*/
|
|
spin_lock_irqsave(&lp->lock, flags);
|
|
/* Put out the doubleword header... */
|
outw(skb->len, ioaddr + TX_FIFO);
|
outw(0x00, ioaddr + TX_FIFO);
|
/* ... and the packet rounded to a doubleword. */
|
outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
|
|
if (inw(ioaddr + TX_FREE) > 1536)
|
netif_start_queue(dev);
|
else
|
/* Interrupt us when the FIFO has room for max-sized packet. */
|
outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
|
dev_consume_skb_any (skb);
|
|
/* Clear the Tx status stack. */
|
{
|
short tx_status;
|
int i = 4;
|
|
while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
|
if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
|
if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
|
if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
|
outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
|
}
|
}
|
return NETDEV_TX_OK;
|
}
|
|
/* The EL3 interrupt handler. */
|
static irqreturn_t
|
el3_interrupt(int irq, void *dev_id)
|
{
|
struct net_device *dev = dev_id;
|
struct el3_private *lp;
|
int ioaddr, status;
|
int i = max_interrupt_work;
|
|
lp = netdev_priv(dev);
|
spin_lock(&lp->lock);
|
|
ioaddr = dev->base_addr;
|
|
if (el3_debug > 4) {
|
status = inw(ioaddr + EL3_STATUS);
|
pr_debug("%s: interrupt, status %4.4x.\n", dev->name, status);
|
}
|
|
while ((status = inw(ioaddr + EL3_STATUS)) &
|
(IntLatch | RxComplete | StatsFull)) {
|
|
if (status & RxComplete)
|
el3_rx(dev);
|
|
if (status & TxAvailable) {
|
if (el3_debug > 5)
|
pr_debug(" TX room bit was handled.\n");
|
/* There's room in the FIFO for a full-sized packet. */
|
outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
|
netif_wake_queue (dev);
|
}
|
if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) {
|
/* Handle all uncommon interrupts. */
|
if (status & StatsFull) /* Empty statistics. */
|
update_stats(dev);
|
if (status & RxEarly) { /* Rx early is unused. */
|
el3_rx(dev);
|
outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
|
}
|
if (status & TxComplete) { /* Really Tx error. */
|
short tx_status;
|
int i = 4;
|
|
while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
|
if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
|
if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
|
if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
|
outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
|
}
|
}
|
if (status & AdapterFailure) {
|
/* Adapter failure requires Rx reset and reinit. */
|
outw(RxReset, ioaddr + EL3_CMD);
|
/* Set the Rx filter to the current state. */
|
outw(SetRxFilter | RxStation | RxBroadcast
|
| (dev->flags & IFF_ALLMULTI ? RxMulticast : 0)
|
| (dev->flags & IFF_PROMISC ? RxProm : 0),
|
ioaddr + EL3_CMD);
|
outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
|
outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
|
}
|
}
|
|
if (--i < 0) {
|
pr_err("%s: Infinite loop in interrupt, status %4.4x.\n",
|
dev->name, status);
|
/* Clear all interrupts. */
|
outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
|
break;
|
}
|
/* Acknowledge the IRQ. */
|
outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */
|
}
|
|
if (el3_debug > 4) {
|
pr_debug("%s: exiting interrupt, status %4.4x.\n", dev->name,
|
inw(ioaddr + EL3_STATUS));
|
}
|
spin_unlock(&lp->lock);
|
return IRQ_HANDLED;
|
}
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
/*
|
* Polling receive - used by netconsole and other diagnostic tools
|
* to allow network i/o with interrupts disabled.
|
*/
|
static void el3_poll_controller(struct net_device *dev)
|
{
|
disable_irq(dev->irq);
|
el3_interrupt(dev->irq, dev);
|
enable_irq(dev->irq);
|
}
|
#endif
|
|
static struct net_device_stats *
|
el3_get_stats(struct net_device *dev)
|
{
|
struct el3_private *lp = netdev_priv(dev);
|
unsigned long flags;
|
|
/*
|
* This is fast enough not to bother with disable IRQ
|
* stuff.
|
*/
|
|
spin_lock_irqsave(&lp->lock, flags);
|
update_stats(dev);
|
spin_unlock_irqrestore(&lp->lock, flags);
|
return &dev->stats;
|
}
|
|
/* Update statistics. We change to register window 6, so this should be run
|
single-threaded if the device is active. This is expected to be a rare
|
operation, and it's simpler for the rest of the driver to assume that
|
window 1 is always valid rather than use a special window-state variable.
|
*/
|
static void update_stats(struct net_device *dev)
|
{
|
int ioaddr = dev->base_addr;
|
|
if (el3_debug > 5)
|
pr_debug(" Updating the statistics.\n");
|
/* Turn off statistics updates while reading. */
|
outw(StatsDisable, ioaddr + EL3_CMD);
|
/* Switch to the stats window, and read everything. */
|
EL3WINDOW(6);
|
dev->stats.tx_carrier_errors += inb(ioaddr + 0);
|
dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
|
/* Multiple collisions. */ inb(ioaddr + 2);
|
dev->stats.collisions += inb(ioaddr + 3);
|
dev->stats.tx_window_errors += inb(ioaddr + 4);
|
dev->stats.rx_fifo_errors += inb(ioaddr + 5);
|
dev->stats.tx_packets += inb(ioaddr + 6);
|
/* Rx packets */ inb(ioaddr + 7);
|
/* Tx deferrals */ inb(ioaddr + 8);
|
inw(ioaddr + 10); /* Total Rx and Tx octets. */
|
inw(ioaddr + 12);
|
|
/* Back to window 1, and turn statistics back on. */
|
EL3WINDOW(1);
|
outw(StatsEnable, ioaddr + EL3_CMD);
|
}
|
|
static int
|
el3_rx(struct net_device *dev)
|
{
|
int ioaddr = dev->base_addr;
|
short rx_status;
|
|
if (el3_debug > 5)
|
pr_debug(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
|
inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
|
while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) {
|
if (rx_status & 0x4000) { /* Error, update stats. */
|
short error = rx_status & 0x3800;
|
|
outw(RxDiscard, ioaddr + EL3_CMD);
|
dev->stats.rx_errors++;
|
switch (error) {
|
case 0x0000: dev->stats.rx_over_errors++; break;
|
case 0x0800: dev->stats.rx_length_errors++; break;
|
case 0x1000: dev->stats.rx_frame_errors++; break;
|
case 0x1800: dev->stats.rx_length_errors++; break;
|
case 0x2000: dev->stats.rx_frame_errors++; break;
|
case 0x2800: dev->stats.rx_crc_errors++; break;
|
}
|
} else {
|
short pkt_len = rx_status & 0x7ff;
|
struct sk_buff *skb;
|
|
skb = netdev_alloc_skb(dev, pkt_len + 5);
|
if (el3_debug > 4)
|
pr_debug("Receiving packet size %d status %4.4x.\n",
|
pkt_len, rx_status);
|
if (skb != NULL) {
|
skb_reserve(skb, 2); /* Align IP on 16 byte */
|
|
/* 'skb->data' points to the start of sk_buff data area. */
|
insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len),
|
(pkt_len + 3) >> 2);
|
|
outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
|
skb->protocol = eth_type_trans(skb,dev);
|
netif_rx(skb);
|
dev->stats.rx_bytes += pkt_len;
|
dev->stats.rx_packets++;
|
continue;
|
}
|
outw(RxDiscard, ioaddr + EL3_CMD);
|
dev->stats.rx_dropped++;
|
if (el3_debug)
|
pr_debug("%s: Couldn't allocate a sk_buff of size %d.\n",
|
dev->name, pkt_len);
|
}
|
inw(ioaddr + EL3_STATUS); /* Delay. */
|
while (inw(ioaddr + EL3_STATUS) & 0x1000)
|
pr_debug(" Waiting for 3c509 to discard packet, status %x.\n",
|
inw(ioaddr + EL3_STATUS) );
|
}
|
|
return 0;
|
}
|
|
/*
|
* Set or clear the multicast filter for this adaptor.
|
*/
|
static void
|
set_multicast_list(struct net_device *dev)
|
{
|
unsigned long flags;
|
struct el3_private *lp = netdev_priv(dev);
|
int ioaddr = dev->base_addr;
|
int mc_count = netdev_mc_count(dev);
|
|
if (el3_debug > 1) {
|
static int old;
|
if (old != mc_count) {
|
old = mc_count;
|
pr_debug("%s: Setting Rx mode to %d addresses.\n",
|
dev->name, mc_count);
|
}
|
}
|
spin_lock_irqsave(&lp->lock, flags);
|
if (dev->flags&IFF_PROMISC) {
|
outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
|
ioaddr + EL3_CMD);
|
}
|
else if (mc_count || (dev->flags&IFF_ALLMULTI)) {
|
outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD);
|
}
|
else
|
outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
|
spin_unlock_irqrestore(&lp->lock, flags);
|
}
|
|
static int
|
el3_close(struct net_device *dev)
|
{
|
int ioaddr = dev->base_addr;
|
struct el3_private *lp = netdev_priv(dev);
|
|
if (el3_debug > 2)
|
pr_debug("%s: Shutting down ethercard.\n", dev->name);
|
|
el3_down(dev);
|
|
free_irq(dev->irq, dev);
|
/* Switching back to window 0 disables the IRQ. */
|
EL3WINDOW(0);
|
if (lp->type != EL3_EISA) {
|
/* But we explicitly zero the IRQ line select anyway. Don't do
|
* it on EISA cards, it prevents the module from getting an
|
* IRQ after unload+reload... */
|
outw(0x0f00, ioaddr + WN0_IRQ);
|
}
|
|
return 0;
|
}
|
|
static int
|
el3_link_ok(struct net_device *dev)
|
{
|
int ioaddr = dev->base_addr;
|
u16 tmp;
|
|
EL3WINDOW(4);
|
tmp = inw(ioaddr + WN4_MEDIA);
|
EL3WINDOW(1);
|
return tmp & (1<<11);
|
}
|
|
static void
|
el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_link_ksettings *cmd)
|
{
|
u16 tmp;
|
int ioaddr = dev->base_addr;
|
u32 supported;
|
|
EL3WINDOW(0);
|
/* obtain current transceiver via WN4_MEDIA? */
|
tmp = inw(ioaddr + WN0_ADDR_CONF);
|
switch (tmp >> 14) {
|
case 0:
|
cmd->base.port = PORT_TP;
|
break;
|
case 1:
|
cmd->base.port = PORT_AUI;
|
break;
|
case 3:
|
cmd->base.port = PORT_BNC;
|
default:
|
break;
|
}
|
|
cmd->base.duplex = DUPLEX_HALF;
|
supported = 0;
|
tmp = inw(ioaddr + WN0_CONF_CTRL);
|
if (tmp & (1<<13))
|
supported |= SUPPORTED_AUI;
|
if (tmp & (1<<12))
|
supported |= SUPPORTED_BNC;
|
if (tmp & (1<<9)) {
|
supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half |
|
SUPPORTED_10baseT_Full; /* hmm... */
|
EL3WINDOW(4);
|
tmp = inw(ioaddr + WN4_NETDIAG);
|
if (tmp & FD_ENABLE)
|
cmd->base.duplex = DUPLEX_FULL;
|
}
|
|
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
|
supported);
|
cmd->base.speed = SPEED_10;
|
EL3WINDOW(1);
|
}
|
|
static int
|
el3_netdev_set_ecmd(struct net_device *dev,
|
const struct ethtool_link_ksettings *cmd)
|
{
|
u16 tmp;
|
int ioaddr = dev->base_addr;
|
|
if (cmd->base.speed != SPEED_10)
|
return -EINVAL;
|
if ((cmd->base.duplex != DUPLEX_HALF) &&
|
(cmd->base.duplex != DUPLEX_FULL))
|
return -EINVAL;
|
|
/* change XCVR type */
|
EL3WINDOW(0);
|
tmp = inw(ioaddr + WN0_ADDR_CONF);
|
switch (cmd->base.port) {
|
case PORT_TP:
|
tmp &= ~(3<<14);
|
dev->if_port = 0;
|
break;
|
case PORT_AUI:
|
tmp |= (1<<14);
|
dev->if_port = 1;
|
break;
|
case PORT_BNC:
|
tmp |= (3<<14);
|
dev->if_port = 3;
|
break;
|
default:
|
return -EINVAL;
|
}
|
|
outw(tmp, ioaddr + WN0_ADDR_CONF);
|
if (dev->if_port == 3) {
|
/* fire up the DC-DC convertor if BNC gets enabled */
|
tmp = inw(ioaddr + WN0_ADDR_CONF);
|
if (tmp & (3 << 14)) {
|
outw(StartCoax, ioaddr + EL3_CMD);
|
udelay(800);
|
} else
|
return -EIO;
|
}
|
|
EL3WINDOW(4);
|
tmp = inw(ioaddr + WN4_NETDIAG);
|
if (cmd->base.duplex == DUPLEX_FULL)
|
tmp |= FD_ENABLE;
|
else
|
tmp &= ~FD_ENABLE;
|
outw(tmp, ioaddr + WN4_NETDIAG);
|
EL3WINDOW(1);
|
|
return 0;
|
}
|
|
static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
|
{
|
strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
|
}
|
|
static int el3_get_link_ksettings(struct net_device *dev,
|
struct ethtool_link_ksettings *cmd)
|
{
|
struct el3_private *lp = netdev_priv(dev);
|
|
spin_lock_irq(&lp->lock);
|
el3_netdev_get_ecmd(dev, cmd);
|
spin_unlock_irq(&lp->lock);
|
return 0;
|
}
|
|
static int el3_set_link_ksettings(struct net_device *dev,
|
const struct ethtool_link_ksettings *cmd)
|
{
|
struct el3_private *lp = netdev_priv(dev);
|
int ret;
|
|
spin_lock_irq(&lp->lock);
|
ret = el3_netdev_set_ecmd(dev, cmd);
|
spin_unlock_irq(&lp->lock);
|
return ret;
|
}
|
|
static u32 el3_get_link(struct net_device *dev)
|
{
|
struct el3_private *lp = netdev_priv(dev);
|
u32 ret;
|
|
spin_lock_irq(&lp->lock);
|
ret = el3_link_ok(dev);
|
spin_unlock_irq(&lp->lock);
|
return ret;
|
}
|
|
static u32 el3_get_msglevel(struct net_device *dev)
|
{
|
return el3_debug;
|
}
|
|
static void el3_set_msglevel(struct net_device *dev, u32 v)
|
{
|
el3_debug = v;
|
}
|
|
static const struct ethtool_ops ethtool_ops = {
|
.get_drvinfo = el3_get_drvinfo,
|
.get_link = el3_get_link,
|
.get_msglevel = el3_get_msglevel,
|
.set_msglevel = el3_set_msglevel,
|
.get_link_ksettings = el3_get_link_ksettings,
|
.set_link_ksettings = el3_set_link_ksettings,
|
};
|
|
static void
|
el3_down(struct net_device *dev)
|
{
|
int ioaddr = dev->base_addr;
|
|
netif_stop_queue(dev);
|
|
/* Turn off statistics ASAP. We update lp->stats below. */
|
outw(StatsDisable, ioaddr + EL3_CMD);
|
|
/* Disable the receiver and transmitter. */
|
outw(RxDisable, ioaddr + EL3_CMD);
|
outw(TxDisable, ioaddr + EL3_CMD);
|
|
if (dev->if_port == 3)
|
/* Turn off thinnet power. Green! */
|
outw(StopCoax, ioaddr + EL3_CMD);
|
else if (dev->if_port == 0) {
|
/* Disable link beat and jabber, if_port may change here next open(). */
|
EL3WINDOW(4);
|
outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
|
}
|
|
outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
|
|
update_stats(dev);
|
}
|
|
static void
|
el3_up(struct net_device *dev)
|
{
|
int i, sw_info, net_diag;
|
int ioaddr = dev->base_addr;
|
|
/* Activating the board required and does no harm otherwise */
|
outw(0x0001, ioaddr + 4);
|
|
/* Set the IRQ line. */
|
outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
|
|
/* Set the station address in window 2 each time opened. */
|
EL3WINDOW(2);
|
|
for (i = 0; i < 6; i++)
|
outb(dev->dev_addr[i], ioaddr + i);
|
|
if ((dev->if_port & 0x03) == 3) /* BNC interface */
|
/* Start the thinnet transceiver. We should really wait 50ms...*/
|
outw(StartCoax, ioaddr + EL3_CMD);
|
else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */
|
/* Combine secondary sw_info word (the adapter level) and primary
|
sw_info word (duplex setting plus other useless bits) */
|
EL3WINDOW(0);
|
sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) |
|
(read_eeprom(ioaddr, 0x0d) & 0xBff0);
|
|
EL3WINDOW(4);
|
net_diag = inw(ioaddr + WN4_NETDIAG);
|
net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */
|
pr_info("%s: ", dev->name);
|
switch (dev->if_port & 0x0c) {
|
case 12:
|
/* force full-duplex mode if 3c5x9b */
|
if (sw_info & 0x000f) {
|
pr_cont("Forcing 3c5x9b full-duplex mode");
|
break;
|
}
|
fallthrough;
|
case 8:
|
/* set full-duplex mode based on eeprom config setting */
|
if ((sw_info & 0x000f) && (sw_info & 0x8000)) {
|
pr_cont("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)");
|
break;
|
}
|
fallthrough;
|
default:
|
/* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */
|
pr_cont("Setting 3c5x9/3c5x9B half-duplex mode");
|
net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */
|
}
|
|
outw(net_diag, ioaddr + WN4_NETDIAG);
|
pr_cont(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info);
|
if (el3_debug > 3)
|
pr_debug("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag);
|
/* Enable link beat and jabber check. */
|
outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
|
}
|
|
/* Switch to the stats window, and clear all stats by reading. */
|
outw(StatsDisable, ioaddr + EL3_CMD);
|
EL3WINDOW(6);
|
for (i = 0; i < 9; i++)
|
inb(ioaddr + i);
|
inw(ioaddr + 10);
|
inw(ioaddr + 12);
|
|
/* Switch to register set 1 for normal use. */
|
EL3WINDOW(1);
|
|
/* Accept b-case and phys addr only. */
|
outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
|
outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
|
|
outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
|
outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
|
/* Allow status bits to be seen. */
|
outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
|
/* Ack all pending events, and set active indicator mask. */
|
outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
|
ioaddr + EL3_CMD);
|
outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
|
ioaddr + EL3_CMD);
|
|
netif_start_queue(dev);
|
}
|
|
/* Power Management support functions */
|
#ifdef CONFIG_PM
|
|
static int
|
el3_suspend(struct device *pdev, pm_message_t state)
|
{
|
unsigned long flags;
|
struct net_device *dev;
|
struct el3_private *lp;
|
int ioaddr;
|
|
dev = dev_get_drvdata(pdev);
|
lp = netdev_priv(dev);
|
ioaddr = dev->base_addr;
|
|
spin_lock_irqsave(&lp->lock, flags);
|
|
if (netif_running(dev))
|
netif_device_detach(dev);
|
|
el3_down(dev);
|
outw(PowerDown, ioaddr + EL3_CMD);
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
return 0;
|
}
|
|
static int
|
el3_resume(struct device *pdev)
|
{
|
unsigned long flags;
|
struct net_device *dev;
|
struct el3_private *lp;
|
int ioaddr;
|
|
dev = dev_get_drvdata(pdev);
|
lp = netdev_priv(dev);
|
ioaddr = dev->base_addr;
|
|
spin_lock_irqsave(&lp->lock, flags);
|
|
outw(PowerUp, ioaddr + EL3_CMD);
|
EL3WINDOW(0);
|
el3_up(dev);
|
|
if (netif_running(dev))
|
netif_device_attach(dev);
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
return 0;
|
}
|
|
#endif /* CONFIG_PM */
|
|
module_param(debug,int, 0);
|
module_param_hw_array(irq, int, irq, NULL, 0);
|
module_param(max_interrupt_work, int, 0);
|
MODULE_PARM_DESC(debug, "debug level (0-6)");
|
MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
|
MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt");
|
#ifdef CONFIG_PNP
|
module_param(nopnp, int, 0);
|
MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)");
|
#endif /* CONFIG_PNP */
|
MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B, 3c529, 3c579) ethernet driver");
|
MODULE_LICENSE("GPL");
|
|
static int __init el3_init_module(void)
|
{
|
int ret = 0;
|
|
if (debug >= 0)
|
el3_debug = debug;
|
|
#ifdef CONFIG_PNP
|
if (!nopnp) {
|
ret = pnp_register_driver(&el3_pnp_driver);
|
if (!ret)
|
pnp_registered = 1;
|
}
|
#endif
|
/* Select an open I/O location at 0x1*0 to do ISA contention select. */
|
/* Start with 0x110 to avoid some sound cards.*/
|
for (id_port = 0x110 ; id_port < 0x200; id_port += 0x10) {
|
if (!request_region(id_port, 1, "3c509-control"))
|
continue;
|
outb(0x00, id_port);
|
outb(0xff, id_port);
|
if (inb(id_port) & 0x01)
|
break;
|
else
|
release_region(id_port, 1);
|
}
|
if (id_port >= 0x200) {
|
id_port = 0;
|
pr_err("No I/O port available for 3c509 activation.\n");
|
} else {
|
ret = isa_register_driver(&el3_isa_driver, EL3_MAX_CARDS);
|
if (!ret)
|
isa_registered = 1;
|
}
|
#ifdef CONFIG_EISA
|
ret = eisa_driver_register(&el3_eisa_driver);
|
if (!ret)
|
eisa_registered = 1;
|
#endif
|
|
#ifdef CONFIG_PNP
|
if (pnp_registered)
|
ret = 0;
|
#endif
|
if (isa_registered)
|
ret = 0;
|
#ifdef CONFIG_EISA
|
if (eisa_registered)
|
ret = 0;
|
#endif
|
return ret;
|
}
|
|
static void __exit el3_cleanup_module(void)
|
{
|
#ifdef CONFIG_PNP
|
if (pnp_registered)
|
pnp_unregister_driver(&el3_pnp_driver);
|
#endif
|
if (isa_registered)
|
isa_unregister_driver(&el3_isa_driver);
|
if (id_port)
|
release_region(id_port, 1);
|
#ifdef CONFIG_EISA
|
if (eisa_registered)
|
eisa_driver_unregister(&el3_eisa_driver);
|
#endif
|
}
|
|
module_init (el3_init_module);
|
module_exit (el3_cleanup_module);
|
