Added missing tegra files.HEADmaster

1 files changed, 918 insertions, 0 deletions

diff --git a/drivers/net/arm/ether3.c b/drivers/net/arm/ether3.c
new file mode 100644
index 00000000000..44a8746f401
--- /dev/null
+++ b/drivers/net/arm/ether3.c
@@ -0,0 +1,918 @@
+/*
+ *  linux/drivers/acorn/net/ether3.c
+ *
+ *  Copyright (C) 1995-2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * SEEQ nq8005 ethernet driver for Acorn/ANT Ether3 card
+ *  for Acorn machines
+ *
+ * By Russell King, with some suggestions from borris@ant.co.uk
+ *
+ * Changelog:
+ * 1.04 RMK     29/02/1996      Won't pass packets that are from our ethernet
+ *                              address up to the higher levels - they're
+ *                              silently ignored.  I/F can now be put into
+ *                              multicast mode.  Receiver routine optimised.
+ * 1.05 RMK     30/02/1996      Now claims interrupt at open when part of
+ *                              the kernel rather than when a module.
+ * 1.06 RMK     02/03/1996      Various code cleanups
+ * 1.07 RMK     13/10/1996      Optimised interrupt routine and transmit
+ *                              routines.
+ * 1.08 RMK     14/10/1996      Fixed problem with too many packets,
+ *                              prevented the kernel message about dropped
+ *                              packets appearing too many times a second.
+ *                              Now does not disable all IRQs, only the IRQ
+ *                              used by this card.
+ * 1.09 RMK     10/11/1996      Only enables TX irq when buffer space is low,
+ *                              but we still service the TX queue if we get a
+ *                              RX interrupt.
+ * 1.10 RMK     15/07/1997      Fixed autoprobing of NQ8004.
+ * 1.11 RMK     16/11/1997      Fixed autoprobing of NQ8005A.
+ * 1.12 RMK     31/12/1997      Removed reference to dev_tint for Linux 2.1.
+ *      RMK     27/06/1998      Changed asm/delay.h to linux/delay.h.
+ * 1.13 RMK     29/06/1998      Fixed problem with transmission of packets.
+ *                              Chip seems to have a bug in, whereby if the
+ *                              packet starts two bytes from the end of the
+ *                              buffer, it corrupts the receiver chain, and
+ *                              never updates the transmit status correctly.
+ * 1.14 RMK     07/01/1998      Added initial code for ETHERB addressing.
+ * 1.15 RMK     30/04/1999      More fixes to the transmit routine for buggy
+ *                              hardware.
+ * 1.16 RMK     10/02/2000      Updated for 2.3.43
+ * 1.17 RMK     13/05/2000      Updated for 2.3.99-pre8
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+
+#include <asm/system.h>
+#include <asm/ecard.h>
+#include <asm/io.h>
+
+static char version[] __devinitdata = "ether3 ethernet driver (c) 1995-2000 R.M.King v1.17\n";
+
+#include "ether3.h"
+
+static unsigned int net_debug = NET_DEBUG;
+
+static void     ether3_setmulticastlist(struct net_device *dev);
+static int      ether3_rx(struct net_device *dev, unsigned int maxcnt);
+static void     ether3_tx(struct net_device *dev);
+static int      ether3_open (struct net_device *dev);
+static int      ether3_sendpacket (struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t ether3_interrupt (int irq, void *dev_id);
+static int      ether3_close (struct net_device *dev);
+static void     ether3_setmulticastlist (struct net_device *dev);
+static void     ether3_timeout(struct net_device *dev);
+
+#define BUS_16          2
+#define BUS_8           1
+#define BUS_UNKNOWN     0
+
+/* --------------------------------------------------------------------------- */
+
+typedef enum {
+        buffer_write,
+        buffer_read
+} buffer_rw_t;
+
+/*
+ * ether3 read/write.  Slow things down a bit...
+ * The SEEQ8005 doesn't like us writing to its registers
+ * too quickly.
+ */
+static inline void ether3_outb(int v, const void __iomem *r)
+{
+        writeb(v, r);
+        udelay(1);
+}
+
+static inline void ether3_outw(int v, const void __iomem *r)
+{
+        writew(v, r);
+        udelay(1);
+}
+#define ether3_inb(r)           ({ unsigned int __v = readb((r)); udelay(1); __v; })
+#define ether3_inw(r)           ({ unsigned int __v = readw((r)); udelay(1); __v; })
+
+static int
+ether3_setbuffer(struct net_device *dev, buffer_rw_t read, int start)
+{
+        int timeout = 1000;
+
+        ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
+        ether3_outw(priv(dev)->regs.command | CMD_FIFOWRITE, REG_COMMAND);
+
+        while ((ether3_inw(REG_STATUS) & STAT_FIFOEMPTY) == 0) {
+                if (!timeout--) {
+                        printk("%s: setbuffer broken\n", dev->name);
+                        priv(dev)->broken = 1;
+                        return 1;
+                }
+                udelay(1);
+        }
+
+        if (read == buffer_read) {
+                ether3_outw(start, REG_DMAADDR);
+                ether3_outw(priv(dev)->regs.command | CMD_FIFOREAD, REG_COMMAND);
+        } else {
+                ether3_outw(priv(dev)->regs.command | CMD_FIFOWRITE, REG_COMMAND);
+                ether3_outw(start, REG_DMAADDR);
+        }
+        return 0;
+}
+
+/*
+ * write data to the buffer memory
+ */
+#define ether3_writebuffer(dev,data,length)                     \
+        writesw(REG_BUFWIN, (data), (length) >> 1)
+
+#define ether3_writeword(dev,data)                              \
+        writew((data), REG_BUFWIN)
+
+#define ether3_writelong(dev,data)      {                       \
+        void __iomem *reg_bufwin = REG_BUFWIN;                  \
+        writew((data), reg_bufwin);                             \
+        writew((data) >> 16, reg_bufwin);                       \
+}
+
+/*
+ * read data from the buffer memory
+ */
+#define ether3_readbuffer(dev,data,length)                      \
+        readsw(REG_BUFWIN, (data), (length) >> 1)
+
+#define ether3_readword(dev)                                    \
+        readw(REG_BUFWIN)
+
+#define ether3_readlong(dev)                                    \
+        readw(REG_BUFWIN) | (readw(REG_BUFWIN) << 16)
+
+/*
+ * Switch LED off...
+ */
+static void ether3_ledoff(unsigned long data)
+{
+        struct net_device *dev = (struct net_device *)data;
+        ether3_outw(priv(dev)->regs.config2 |= CFG2_CTRLO, REG_CONFIG2);
+}
+
+/*
+ * switch LED on...
+ */
+static inline void ether3_ledon(struct net_device *dev)
+{
+        del_timer(&priv(dev)->timer);
+        priv(dev)->timer.expires = jiffies + HZ / 50; /* leave on for 1/50th second */
+        priv(dev)->timer.data = (unsigned long)dev;
+        priv(dev)->timer.function = ether3_ledoff;
+        add_timer(&priv(dev)->timer);
+        if (priv(dev)->regs.config2 & CFG2_CTRLO)
+                ether3_outw(priv(dev)->regs.config2 &= ~CFG2_CTRLO, REG_CONFIG2);
+}
+
+/*
+ * Read the ethernet address string from the on board rom.
+ * This is an ascii string!!!
+ */
+static int __devinit
+ether3_addr(char *addr, struct expansion_card *ec)
+{
+        struct in_chunk_dir cd;
+        char *s;
+        
+        if (ecard_readchunk(&cd, ec, 0xf5, 0) && (s = strchr(cd.d.string, '('))) {
+                int i;
+                for (i = 0; i<6; i++) {
+                        addr[i] = simple_strtoul(s + 1, &s, 0x10);
+                        if (*s != (i==5?')' : ':' ))
+                                break;
+                }
+                if (i == 6)
+                        return 0;
+        }
+        /* I wonder if we should even let the user continue in this case
+         *   - no, it would be better to disable the device
+         */
+        printk(KERN_ERR "ether3: Couldn't read a valid MAC address from card.\n");
+        return -ENODEV;
+}
+
+/* --------------------------------------------------------------------------- */
+
+static int __devinit
+ether3_ramtest(struct net_device *dev, unsigned char byte)
+{
+        unsigned char *buffer = kmalloc(RX_END, GFP_KERNEL);
+        int i,ret = 0;
+        int max_errors = 4;
+        int bad = -1;
+
+        if (!buffer)
+                return 1;
+
+        memset(buffer, byte, RX_END);
+        ether3_setbuffer(dev, buffer_write, 0);
+        ether3_writebuffer(dev, buffer, TX_END);
+        ether3_setbuffer(dev, buffer_write, RX_START);
+        ether3_writebuffer(dev, buffer + RX_START, RX_LEN);
+        memset(buffer, byte ^ 0xff, RX_END);
+        ether3_setbuffer(dev, buffer_read, 0);
+        ether3_readbuffer(dev, buffer, TX_END);
+        ether3_setbuffer(dev, buffer_read, RX_START);
+        ether3_readbuffer(dev, buffer + RX_START, RX_LEN);
+
+        for (i = 0; i < RX_END; i++) {
+                if (buffer[i] != byte) {
+                        if (max_errors > 0 && bad != buffer[i]) {
+                                printk("%s: RAM failed with (%02X instead of %02X) at 0x%04X",
+                                       dev->name, buffer[i], byte, i);
+                                ret = 2;
+                                max_errors--;
+                                bad = i;
+                        }
+                } else {
+                        if (bad != -1) {
+                                if (bad != i - 1)
+                                        printk(" - 0x%04X\n", i - 1);
+                                printk("\n");
+                                bad = -1;
+                        }
+                }
+        }
+        if (bad != -1)
+                printk(" - 0xffff\n");
+        kfree(buffer);
+
+        return ret;
+}
+
+/* ------------------------------------------------------------------------------- */
+
+static int __devinit ether3_init_2(struct net_device *dev)
+{
+        int i;
+
+        priv(dev)->regs.config1 = CFG1_RECVCOMPSTAT0|CFG1_DMABURST8;
+        priv(dev)->regs.config2 = CFG2_CTRLO|CFG2_RECVCRC|CFG2_ERRENCRC;
+        priv(dev)->regs.command = 0;
+
+        /*
+         * Set up our hardware address
+         */
+        ether3_outw(priv(dev)->regs.config1 | CFG1_BUFSELSTAT0, REG_CONFIG1);
+        for (i = 0; i < 6; i++)
+                ether3_outb(dev->dev_addr[i], REG_BUFWIN);
+
+        if (dev->flags & IFF_PROMISC)
+                priv(dev)->regs.config1 |= CFG1_RECVPROMISC;
+        else if (dev->flags & IFF_MULTICAST)
+                priv(dev)->regs.config1 |= CFG1_RECVSPECBRMULTI;
+        else
+                priv(dev)->regs.config1 |= CFG1_RECVSPECBROAD;
+
+        /*
+         * There is a problem with the NQ8005 in that it occasionally loses the
+         * last two bytes.  To get round this problem, we receive the CRC as
+         * well.  That way, if we do lose the last two, then it doesn't matter.
+         */
+        ether3_outw(priv(dev)->regs.config1 | CFG1_TRANSEND, REG_CONFIG1);
+        ether3_outw((TX_END>>8) - 1, REG_BUFWIN);
+        ether3_outw(priv(dev)->rx_head, REG_RECVPTR);
+        ether3_outw(0, REG_TRANSMITPTR);
+        ether3_outw(priv(dev)->rx_head >> 8, REG_RECVEND);
+        ether3_outw(priv(dev)->regs.config2, REG_CONFIG2);
+        ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
+        ether3_outw(priv(dev)->regs.command, REG_COMMAND);
+
+        i = ether3_ramtest(dev, 0x5A);
+        if(i)
+                return i;
+        i = ether3_ramtest(dev, 0x1E);
+        if(i)
+                return i;
+
+        ether3_setbuffer(dev, buffer_write, 0);
+        ether3_writelong(dev, 0);
+        return 0;
+}
+
+static void
+ether3_init_for_open(struct net_device *dev)
+{
+        int i;
+
+        /* Reset the chip */
+        ether3_outw(CFG2_RESET, REG_CONFIG2);
+        udelay(4);
+
+        priv(dev)->regs.command = 0;
+        ether3_outw(CMD_RXOFF|CMD_TXOFF, REG_COMMAND);
+        while (ether3_inw(REG_STATUS) & (STAT_RXON|STAT_TXON))
+                barrier();
+
+        ether3_outw(priv(dev)->regs.config1 | CFG1_BUFSELSTAT0, REG_CONFIG1);
+        for (i = 0; i < 6; i++)
+                ether3_outb(dev->dev_addr[i], REG_BUFWIN);
+
+        priv(dev)->tx_head      = 0;
+        priv(dev)->tx_tail      = 0;
+        priv(dev)->regs.config2 |= CFG2_CTRLO;
+        priv(dev)->rx_head      = RX_START;
+
+        ether3_outw(priv(dev)->regs.config1 | CFG1_TRANSEND, REG_CONFIG1);
+        ether3_outw((TX_END>>8) - 1, REG_BUFWIN);
+        ether3_outw(priv(dev)->rx_head, REG_RECVPTR);
+        ether3_outw(priv(dev)->rx_head >> 8, REG_RECVEND);
+        ether3_outw(0, REG_TRANSMITPTR);
+        ether3_outw(priv(dev)->regs.config2, REG_CONFIG2);
+        ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
+
+        ether3_setbuffer(dev, buffer_write, 0);
+        ether3_writelong(dev, 0);
+
+        priv(dev)->regs.command = CMD_ENINTRX | CMD_ENINTTX;
+        ether3_outw(priv(dev)->regs.command | CMD_RXON, REG_COMMAND);
+}
+
+static inline int
+ether3_probe_bus_8(struct net_device *dev, int val)
+{
+        int write_low, write_high, read_low, read_high;
+
+        write_low = val & 255;
+        write_high = val >> 8;
+
+        printk(KERN_DEBUG "ether3_probe: write8 [%02X:%02X]", write_high, write_low);
+
+        ether3_outb(write_low, REG_RECVPTR);
+        ether3_outb(write_high, REG_RECVPTR + 4);
+
+        read_low = ether3_inb(REG_RECVPTR);
+        read_high = ether3_inb(REG_RECVPTR + 4);
+
+        printk(", read8 [%02X:%02X]\n", read_high, read_low);
+
+        return read_low == write_low && read_high == write_high;
+}
+
+static inline int
+ether3_probe_bus_16(struct net_device *dev, int val)
+{
+        int read_val;
+
+        ether3_outw(val, REG_RECVPTR);
+        read_val = ether3_inw(REG_RECVPTR);
+
+        printk(KERN_DEBUG "ether3_probe: write16 [%04X], read16 [%04X]\n", val, read_val);
+
+        return read_val == val;
+}
+
+/*
+ * Open/initialize the board.  This is called (in the current kernel)
+ * sometime after booting when the 'ifconfig' program is run.
+ *
+ * This routine should set everything up anew at each open, even
+ * registers that "should" only need to be set once at boot, so that
+ * there is non-reboot way to recover if something goes wrong.
+ */
+static int
+ether3_open(struct net_device *dev)
+{
+        if (!is_valid_ether_addr(dev->dev_addr)) {
+                printk(KERN_WARNING "%s: invalid ethernet MAC address\n",
+                        dev->name);
+                return -EINVAL;
+        }
+
+        if (request_irq(dev->irq, ether3_interrupt, 0, "ether3", dev))
+                return -EAGAIN;
+
+        ether3_init_for_open(dev);
+
+        netif_start_queue(dev);
+
+        return 0;
+}
+
+/*
+ * The inverse routine to ether3_open().
+ */
+static int
+ether3_close(struct net_device *dev)
+{
+        netif_stop_queue(dev);
+
+        disable_irq(dev->irq);
+
+        ether3_outw(CMD_RXOFF|CMD_TXOFF, REG_COMMAND);
+        priv(dev)->regs.command = 0;
+        while (ether3_inw(REG_STATUS) & (STAT_RXON|STAT_TXON))
+                barrier();
+        ether3_outb(0x80, REG_CONFIG2 + 4);
+        ether3_outw(0, REG_COMMAND);
+
+        free_irq(dev->irq, dev);
+
+        return 0;
+}
+
+/*
+ * Set or clear promiscuous/multicast mode filter for this adaptor.
+ *
+ * We don't attempt any packet filtering.  The card may have a SEEQ 8004
+ * in which does not have the other ethernet address registers present...
+ */
+static void ether3_setmulticastlist(struct net_device *dev)
+{
+        priv(dev)->regs.config1 &= ~CFG1_RECVPROMISC;
+
+        if (dev->flags & IFF_PROMISC) {
+                /* promiscuous mode */
+                priv(dev)->regs.config1 |= CFG1_RECVPROMISC;
+        } else if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) {
+                priv(dev)->regs.config1 |= CFG1_RECVSPECBRMULTI;
+        } else
+                priv(dev)->regs.config1 |= CFG1_RECVSPECBROAD;
+
+        ether3_outw(priv(dev)->regs.config1 | CFG1_LOCBUFMEM, REG_CONFIG1);
+}
+
+static void ether3_timeout(struct net_device *dev)
+{
+        unsigned long flags;
+
+        del_timer(&priv(dev)->timer);
+
+        local_irq_save(flags);
+        printk(KERN_ERR "%s: transmit timed out, network cable problem?\n", dev->name);
+        printk(KERN_ERR "%s: state: { status=%04X cfg1=%04X cfg2=%04X }\n", dev->name,
+                ether3_inw(REG_STATUS), ether3_inw(REG_CONFIG1), ether3_inw(REG_CONFIG2));
+        printk(KERN_ERR "%s: { rpr=%04X rea=%04X tpr=%04X }\n", dev->name,
+                ether3_inw(REG_RECVPTR), ether3_inw(REG_RECVEND), ether3_inw(REG_TRANSMITPTR));
+        printk(KERN_ERR "%s: tx head=%X tx tail=%X\n", dev->name,
+                priv(dev)->tx_head, priv(dev)->tx_tail);
+        ether3_setbuffer(dev, buffer_read, priv(dev)->tx_tail);
+        printk(KERN_ERR "%s: packet status = %08X\n", dev->name, ether3_readlong(dev));
+        local_irq_restore(flags);
+
+        priv(dev)->regs.config2 |= CFG2_CTRLO;
+        dev->stats.tx_errors += 1;
+        ether3_outw(priv(dev)->regs.config2, REG_CONFIG2);
+        priv(dev)->tx_head = priv(dev)->tx_tail = 0;
+
+        netif_wake_queue(dev);
+}
+
+/*
+ * Transmit a packet
+ */
+static int
+ether3_sendpacket(struct sk_buff *skb, struct net_device *dev)
+{
+        unsigned long flags;
+        unsigned int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
+        unsigned int ptr, next_ptr;
+
+        if (priv(dev)->broken) {
+                dev_kfree_skb(skb);
+                dev->stats.tx_dropped++;
+                netif_start_queue(dev);
+                return NETDEV_TX_OK;
+        }
+
+        length = (length + 1) & ~1;
+        if (length != skb->len) {
+                if (skb_padto(skb, length))
+                        goto out;
+        }
+
+        next_ptr = (priv(dev)->tx_head + 1) & 15;
+
+        local_irq_save(flags);
+
+        if (priv(dev)->tx_tail == next_ptr) {
+                local_irq_restore(flags);
+                return NETDEV_TX_BUSY;  /* unable to queue */
+        }
+
+        ptr              = 0x600 * priv(dev)->tx_head;
+        priv(dev)->tx_head = next_ptr;
+        next_ptr        *= 0x600;
+
+#define TXHDR_FLAGS (TXHDR_TRANSMIT|TXHDR_CHAINCONTINUE|TXHDR_DATAFOLLOWS|TXHDR_ENSUCCESS)
+
+        ether3_setbuffer(dev, buffer_write, next_ptr);
+        ether3_writelong(dev, 0);
+        ether3_setbuffer(dev, buffer_write, ptr);
+        ether3_writelong(dev, 0);
+        ether3_writebuffer(dev, skb->data, length);
+        ether3_writeword(dev, htons(next_ptr));
+        ether3_writeword(dev, TXHDR_CHAINCONTINUE >> 16);
+        ether3_setbuffer(dev, buffer_write, ptr);
+        ether3_writeword(dev, htons((ptr + length + 4)));
+        ether3_writeword(dev, TXHDR_FLAGS >> 16);
+        ether3_ledon(dev);
+
+        if (!(ether3_inw(REG_STATUS) & STAT_TXON)) {
+                ether3_outw(ptr, REG_TRANSMITPTR);
+                ether3_outw(priv(dev)->regs.command | CMD_TXON, REG_COMMAND);
+        }
+
+        next_ptr = (priv(dev)->tx_head + 1) & 15;
+        local_irq_restore(flags);
+
+        dev_kfree_skb(skb);
+
+        if (priv(dev)->tx_tail == next_ptr)
+                netif_stop_queue(dev);
+
+ out:
+        return NETDEV_TX_OK;
+}
+
+static irqreturn_t
+ether3_interrupt(int irq, void *dev_id)
+{
+        struct net_device *dev = (struct net_device *)dev_id;
+        unsigned int status, handled = IRQ_NONE;
+
+#if NET_DEBUG > 1
+        if(net_debug & DEBUG_INT)
+                printk("eth3irq: %d ", irq);
+#endif
+
+        status = ether3_inw(REG_STATUS);
+
+        if (status & STAT_INTRX) {
+                ether3_outw(CMD_ACKINTRX | priv(dev)->regs.command, REG_COMMAND);
+                ether3_rx(dev, 12);
+                handled = IRQ_HANDLED;
+        }
+
+        if (status & STAT_INTTX) {
+                ether3_outw(CMD_ACKINTTX | priv(dev)->regs.command, REG_COMMAND);
+                ether3_tx(dev);
+                handled = IRQ_HANDLED;
+        }
+
+#if NET_DEBUG > 1
+        if(net_debug & DEBUG_INT)
+                printk("done\n");
+#endif
+        return handled;
+}
+
+/*
+ * If we have a good packet(s), get it/them out of the buffers.
+ */
+static int ether3_rx(struct net_device *dev, unsigned int maxcnt)
+{
+        unsigned int next_ptr = priv(dev)->rx_head, received = 0;
+
+        ether3_ledon(dev);
+
+        do {
+                unsigned int this_ptr, status;
+                unsigned char addrs[16];
+
+                /*
+                 * read the first 16 bytes from the buffer.
+                 * This contains the status bytes etc and ethernet addresses,
+                 * and we also check the source ethernet address to see if
+                 * it originated from us.
+                 */
+                {
+                        unsigned int temp_ptr;
+                        ether3_setbuffer(dev, buffer_read, next_ptr);
+                        temp_ptr = ether3_readword(dev);
+                        status = ether3_readword(dev);
+                        if ((status & (RXSTAT_DONE | RXHDR_CHAINCONTINUE | RXHDR_RECEIVE)) !=
+                                (RXSTAT_DONE | RXHDR_CHAINCONTINUE) || !temp_ptr)
+                                break;
+
+                        this_ptr = next_ptr + 4;
+                        next_ptr = ntohs(temp_ptr);
+                }
+                ether3_setbuffer(dev, buffer_read, this_ptr);
+                ether3_readbuffer(dev, addrs+2, 12);
+
+if (next_ptr < RX_START || next_ptr >= RX_END) {
+ int i;
+ printk("%s: bad next pointer @%04X: ", dev->name, priv(dev)->rx_head);
+ printk("%02X %02X %02X %02X ", next_ptr >> 8, next_ptr & 255, status & 255, status >> 8);
+ for (i = 2; i < 14; i++)
+   printk("%02X ", addrs[i]);
+ printk("\n");
+ next_ptr = priv(dev)->rx_head;
+ break;
+}
+                /*
+                 * ignore our own packets...
+                 */
+                if (!(*(unsigned long *)&dev->dev_addr[0] ^ *(unsigned long *)&addrs[2+6]) &&
+                    !(*(unsigned short *)&dev->dev_addr[4] ^ *(unsigned short *)&addrs[2+10])) {
+                        maxcnt ++; /* compensate for loopedback packet */
+                        ether3_outw(next_ptr >> 8, REG_RECVEND);
+                } else
+                if (!(status & (RXSTAT_OVERSIZE|RXSTAT_CRCERROR|RXSTAT_DRIBBLEERROR|RXSTAT_SHORTPACKET))) {
+                        unsigned int length = next_ptr - this_ptr;
+                        struct sk_buff *skb;
+
+                        if (next_ptr <= this_ptr)
+                                length += RX_END - RX_START;
+
+                        skb = dev_alloc_skb(length + 2);
+                        if (skb) {
+                                unsigned char *buf;
+
+                                skb_reserve(skb, 2);
+                                buf = skb_put(skb, length);
+                                ether3_readbuffer(dev, buf + 12, length - 12);
+                                ether3_outw(next_ptr >> 8, REG_RECVEND);
+                                *(unsigned short *)(buf + 0)    = *(unsigned short *)(addrs + 2);
+                                *(unsigned long *)(buf + 2)     = *(unsigned long *)(addrs + 4);
+                                *(unsigned long *)(buf + 6)     = *(unsigned long *)(addrs + 8);
+                                *(unsigned short *)(buf + 10)   = *(unsigned short *)(addrs + 12);
+                                skb->protocol = eth_type_trans(skb, dev);
+                                netif_rx(skb);
+                                received ++;
+                        } else
+                                goto dropping;
+                } else {
+                        struct net_device_stats *stats = &dev->stats;
+                        ether3_outw(next_ptr >> 8, REG_RECVEND);
+                        if (status & RXSTAT_OVERSIZE)     stats->rx_over_errors ++;
+                        if (status & RXSTAT_CRCERROR)     stats->rx_crc_errors ++;
+                        if (status & RXSTAT_DRIBBLEERROR) stats->rx_fifo_errors ++;
+                        if (status & RXSTAT_SHORTPACKET)  stats->rx_length_errors ++;
+                        stats->rx_errors++;
+                }
+        }
+        while (-- maxcnt);
+
+done:
+        dev->stats.rx_packets += received;
+        priv(dev)->rx_head = next_ptr;
+        /*
+         * If rx went off line, then that means that the buffer may be full.  We
+         * have dropped at least one packet.
+         */
+        if (!(ether3_inw(REG_STATUS) & STAT_RXON)) {
+                dev->stats.rx_dropped++;
+                ether3_outw(next_ptr, REG_RECVPTR);
+                ether3_outw(priv(dev)->regs.command | CMD_RXON, REG_COMMAND);
+        }
+
+        return maxcnt;
+
+dropping:{
+        static unsigned long last_warned;
+
+        ether3_outw(next_ptr >> 8, REG_RECVEND);
+        /*
+         * Don't print this message too many times...
+         */
+        if (time_after(jiffies, last_warned + 10 * HZ)) {
+                last_warned = jiffies;
+                printk("%s: memory squeeze, dropping packet.\n", dev->name);
+        }
+        dev->stats.rx_dropped++;
+        goto done;
+        }
+}
+
+/*
+ * Update stats for the transmitted packet(s)
+ */
+static void ether3_tx(struct net_device *dev)
+{
+        unsigned int tx_tail = priv(dev)->tx_tail;
+        int max_work = 14;
+
+        do {
+                unsigned long status;
+
+                /*
+                 * Read the packet header
+                 */
+                ether3_setbuffer(dev, buffer_read, tx_tail * 0x600);
+                status = ether3_readlong(dev);
+
+                /*
+                 * Check to see if this packet has been transmitted
+                 */
+                if ((status & (TXSTAT_DONE | TXHDR_TRANSMIT)) !=
+                    (TXSTAT_DONE | TXHDR_TRANSMIT))
+                        break;
+
+                /*
+                 * Update errors
+                 */
+                if (!(status & (TXSTAT_BABBLED | TXSTAT_16COLLISIONS)))
+                        dev->stats.tx_packets++;
+                else {
+                        dev->stats.tx_errors++;
+                        if (status & TXSTAT_16COLLISIONS)
+                                dev->stats.collisions += 16;
+                        if (status & TXSTAT_BABBLED)
+                                dev->stats.tx_fifo_errors++;
+                }
+
+                tx_tail = (tx_tail + 1) & 15;
+        } while (--max_work);
+
+        if (priv(dev)->tx_tail != tx_tail) {
+                priv(dev)->tx_tail = tx_tail;
+                netif_wake_queue(dev);
+        }
+}
+
+static void __devinit ether3_banner(void)
+{
+        static unsigned version_printed = 0;
+
+        if (net_debug && version_printed++ == 0)
+                printk(KERN_INFO "%s", version);
+}
+
+static const struct net_device_ops ether3_netdev_ops = {
+        .ndo_open               = ether3_open,
+        .ndo_stop               = ether3_close,
+        .ndo_start_xmit         = ether3_sendpacket,
+        .ndo_set_multicast_list = ether3_setmulticastlist,
+        .ndo_tx_timeout         = ether3_timeout,
+        .ndo_validate_addr      = eth_validate_addr,
+        .ndo_change_mtu         = eth_change_mtu,
+        .ndo_set_mac_address    = eth_mac_addr,
+};
+
+static int __devinit
+ether3_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+        const struct ether3_data *data = id->data;
+        struct net_device *dev;
+        int bus_type, ret;
+
+        ether3_banner();
+
+        ret = ecard_request_resources(ec);
+        if (ret)
+                goto out;
+
+        dev = alloc_etherdev(sizeof(struct dev_priv));
+        if (!dev) {
+                ret = -ENOMEM;
+                goto release;
+        }
+
+        SET_NETDEV_DEV(dev, &ec->dev);
+
+        priv(dev)->base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
+        if (!priv(dev)->base) {
+                ret = -ENOMEM;
+                goto free;
+        }
+
+        ec->irqaddr = priv(dev)->base + data->base_offset;
+        ec->irqmask = 0xf0;
+
+        priv(dev)->seeq = priv(dev)->base + data->base_offset;
+        dev->irq = ec->irq;
+
+        ether3_addr(dev->dev_addr, ec);
+
+        init_timer(&priv(dev)->timer);
+
+        /* Reset card...
+         */
+        ether3_outb(0x80, REG_CONFIG2 + 4);
+        bus_type = BUS_UNKNOWN;
+        udelay(4);
+
+        /* Test using Receive Pointer (16-bit register) to find out
+         * how the ether3 is connected to the bus...
+         */
+        if (ether3_probe_bus_8(dev, 0x100) &&
+            ether3_probe_bus_8(dev, 0x201))
+                bus_type = BUS_8;
+
+        if (bus_type == BUS_UNKNOWN &&
+            ether3_probe_bus_16(dev, 0x101) &&
+            ether3_probe_bus_16(dev, 0x201))
+                bus_type = BUS_16;
+
+        switch (bus_type) {
+        case BUS_UNKNOWN:
+                printk(KERN_ERR "%s: unable to identify bus width\n", dev->name);
+                ret = -ENODEV;
+                goto free;
+
+        case BUS_8:
+                printk(KERN_ERR "%s: %s found, but is an unsupported "
+                        "8-bit card\n", dev->name, data->name);
+                ret = -ENODEV;
+                goto free;
+
+        default:
+                break;
+        }
+
+        if (ether3_init_2(dev)) {
+                ret = -ENODEV;
+                goto free;
+        }
+
+        dev->netdev_ops         = &ether3_netdev_ops;
+        dev->watchdog_timeo     = 5 * HZ / 100;
+
+        ret = register_netdev(dev);
+        if (ret)
+                goto free;
+
+        printk("%s: %s in slot %d, %pM\n",
+               dev->name, data->name, ec->slot_no, dev->dev_addr);
+
+        ecard_set_drvdata(ec, dev);
+        return 0;
+
+ free:
+        free_netdev(dev);
+ release:
+        ecard_release_resources(ec);
+ out:
+        return ret;
+}
+
+static void __devexit ether3_remove(struct expansion_card *ec)
+{
+        struct net_device *dev = ecard_get_drvdata(ec);
+
+        ecard_set_drvdata(ec, NULL);
+
+        unregister_netdev(dev);
+        free_netdev(dev);
+        ecard_release_resources(ec);
+}
+
+static struct ether3_data ether3 = {
+        .name           = "ether3",
+        .base_offset    = 0,
+};
+
+static struct ether3_data etherb = {
+        .name           = "etherb",
+        .base_offset    = 0x800,
+};
+
+static const struct ecard_id ether3_ids[] = {
+        { MANU_ANT2, PROD_ANT_ETHER3, &ether3 },
+        { MANU_ANT,  PROD_ANT_ETHER3, &ether3 },
+        { MANU_ANT,  PROD_ANT_ETHERB, &etherb },
+        { 0xffff, 0xffff }
+};
+
+static struct ecard_driver ether3_driver = {
+        .probe          = ether3_probe,
+        .remove         = __devexit_p(ether3_remove),
+        .id_table       = ether3_ids,
+        .drv = {
+                .name   = "ether3",
+        },
+};
+
+static int __init ether3_init(void)
+{
+        return ecard_register_driver(&ether3_driver);
+}
+
+static void __exit ether3_exit(void)
+{
+        ecard_remove_driver(&ether3_driver);
+}
+
+module_init(ether3_init);
+module_exit(ether3_exit);
+
+MODULE_LICENSE("GPL");