aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/eexpress.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/eexpress.c')
-rw-r--r--drivers/net/eexpress.c1720
1 files changed, 0 insertions, 1720 deletions
diff --git a/drivers/net/eexpress.c b/drivers/net/eexpress.c
deleted file mode 100644
index a19228563efd..000000000000
--- a/drivers/net/eexpress.c
+++ /dev/null
@@ -1,1720 +0,0 @@
-/* Intel EtherExpress 16 device driver for Linux
- *
- * Written by John Sullivan, 1995
- * based on original code by Donald Becker, with changes by
- * Alan Cox and Pauline Middelink.
- *
- * Support for 8-bit mode by Zoltan Szilagyi <zoltans@cs.arizona.edu>
- *
- * Many modifications, and currently maintained, by
- * Philip Blundell <philb@gnu.org>
- * Added the Compaq LTE Alan Cox <alan@lxorguk.ukuu.org.uk>
- * Added MCA support Adam Fritzler
- *
- * Note - this driver is experimental still - it has problems on faster
- * machines. Someone needs to sit down and go through it line by line with
- * a databook...
- */
-
-/* The EtherExpress 16 is a fairly simple card, based on a shared-memory
- * design using the i82586 Ethernet coprocessor. It bears no relationship,
- * as far as I know, to the similarly-named "EtherExpress Pro" range.
- *
- * Historically, Linux support for these cards has been very bad. However,
- * things seem to be getting better slowly.
- */
-
-/* If your card is confused about what sort of interface it has (eg it
- * persistently reports "10baseT" when none is fitted), running 'SOFTSET /BART'
- * or 'SOFTSET /LISA' from DOS seems to help.
- */
-
-/* Here's the scoop on memory mapping.
- *
- * There are three ways to access EtherExpress card memory: either using the
- * shared-memory mapping, or using PIO through the dataport, or using PIO
- * through the "shadow memory" ports.
- *
- * The shadow memory system works by having the card map some of its memory
- * as follows:
- *
- * (the low five bits of the SMPTR are ignored)
- *
- * base+0x4000..400f memory at SMPTR+0..15
- * base+0x8000..800f memory at SMPTR+16..31
- * base+0xc000..c007 dubious stuff (memory at SMPTR+16..23 apparently)
- * base+0xc008..c00f memory at 0x0008..0x000f
- *
- * This last set (the one at c008) is particularly handy because the SCB
- * lives at 0x0008. So that set of ports gives us easy random access to data
- * in the SCB without having to mess around setting up pointers and the like.
- * We always use this method to access the SCB (via the scb_xx() functions).
- *
- * Dataport access works by aiming the appropriate (read or write) pointer
- * at the first address you're interested in, and then reading or writing from
- * the dataport. The pointers auto-increment after each transfer. We use
- * this for data transfer.
- *
- * We don't use the shared-memory system because it allegedly doesn't work on
- * all cards, and because it's a bit more prone to go wrong (it's one more
- * thing to configure...).
- */
-
-/* Known bugs:
- *
- * - The card seems to want to give us two interrupts every time something
- * happens, where just one would be better.
- */
-
-/*
- *
- * Note by Zoltan Szilagyi 10-12-96:
- *
- * I've succeeded in eliminating the "CU wedged" messages, and hence the
- * lockups, which were only occurring with cards running in 8-bit mode ("force
- * 8-bit operation" in Intel's SoftSet utility). This version of the driver
- * sets the 82586 and the ASIC to 8-bit mode at startup; it also stops the
- * CU before submitting a packet for transmission, and then restarts it as soon
- * as the process of handing the packet is complete. This is definitely an
- * unnecessary slowdown if the card is running in 16-bit mode; therefore one
- * should detect 16-bit vs 8-bit mode from the EEPROM settings and act
- * accordingly. In 8-bit mode with this bugfix I'm getting about 150 K/s for
- * ftp's, which is significantly better than I get in DOS, so the overhead of
- * stopping and restarting the CU with each transmit is not prohibitive in
- * practice.
- *
- * Update by David Woodhouse 11/5/99:
- *
- * I've seen "CU wedged" messages in 16-bit mode, on the Alpha architecture.
- * I assume that this is because 16-bit accesses are actually handled as two
- * 8-bit accesses.
- */
-
-#ifdef __alpha__
-#define LOCKUP16 1
-#endif
-#ifndef LOCKUP16
-#define LOCKUP16 0
-#endif
-
-#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/string.h>
-#include <linux/in.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/mca-legacy.h>
-#include <linux/spinlock.h>
-#include <linux/bitops.h>
-#include <linux/jiffies.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#ifndef NET_DEBUG
-#define NET_DEBUG 4
-#endif
-
-#include "eexpress.h"
-
-#define EEXP_IO_EXTENT 16
-
-/*
- * Private data declarations
- */
-
-struct net_local
-{
- unsigned long last_tx; /* jiffies when last transmit started */
- unsigned long init_time; /* jiffies when eexp_hw_init586 called */
- unsigned short rx_first; /* first rx buf, same as RX_BUF_START */
- unsigned short rx_last; /* last rx buf */
- unsigned short rx_ptr; /* first rx buf to look at */
- unsigned short tx_head; /* next free tx buf */
- unsigned short tx_reap; /* first in-use tx buf */
- unsigned short tx_tail; /* previous tx buf to tx_head */
- unsigned short tx_link; /* last known-executing tx buf */
- unsigned short last_tx_restart; /* set to tx_link when we
- restart the CU */
- unsigned char started;
- unsigned short rx_buf_start;
- unsigned short rx_buf_end;
- unsigned short num_tx_bufs;
- unsigned short num_rx_bufs;
- unsigned char width; /* 0 for 16bit, 1 for 8bit */
- unsigned char was_promisc;
- unsigned char old_mc_count;
- spinlock_t lock;
-};
-
-/* This is the code and data that is downloaded to the EtherExpress card's
- * memory at boot time.
- */
-
-static unsigned short start_code[] = {
-/* 0x0000 */
- 0x0001, /* ISCP: busy - cleared after reset */
- 0x0008,0x0000,0x0000, /* offset,address (lo,hi) of SCB */
-
- 0x0000,0x0000, /* SCB: status, commands */
- 0x0000,0x0000, /* links to first command block,
- first receive descriptor */
- 0x0000,0x0000, /* CRC error, alignment error counts */
- 0x0000,0x0000, /* out of resources, overrun error counts */
-
- 0x0000,0x0000, /* pad */
- 0x0000,0x0000,
-
-/* 0x20 -- start of 82586 CU program */
-#define CONF_LINK 0x20
- 0x0000,Cmd_Config,
- 0x0032, /* link to next command */
- 0x080c, /* 12 bytes follow : fifo threshold=8 */
- 0x2e40, /* don't rx bad frames
- * SRDY/ARDY => ext. sync. : preamble len=8
- * take addresses from data buffers
- * 6 bytes/address
- */
- 0x6000, /* default backoff method & priority
- * interframe spacing = 0x60 */
- 0xf200, /* slot time=0x200
- * max collision retry = 0xf */
-#define CONF_PROMISC 0x2e
- 0x0000, /* no HDLC : normal CRC : enable broadcast
- * disable promiscuous/multicast modes */
- 0x003c, /* minimum frame length = 60 octets) */
-
- 0x0000,Cmd_SetAddr,
- 0x003e, /* link to next command */
-#define CONF_HWADDR 0x38
- 0x0000,0x0000,0x0000, /* hardware address placed here */
-
- 0x0000,Cmd_MCast,
- 0x0076, /* link to next command */
-#define CONF_NR_MULTICAST 0x44
- 0x0000, /* number of bytes in multicast address(es) */
-#define CONF_MULTICAST 0x46
- 0x0000, 0x0000, 0x0000, /* some addresses */
- 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000,
-
-#define CONF_DIAG_RESULT 0x76
- 0x0000, Cmd_Diag,
- 0x007c, /* link to next command */
-
- 0x0000,Cmd_TDR|Cmd_INT,
- 0x0084,
-#define CONF_TDR_RESULT 0x82
- 0x0000,
-
- 0x0000,Cmd_END|Cmd_Nop, /* end of configure sequence */
- 0x0084 /* dummy link */
-};
-
-/* maps irq number to EtherExpress magic value */
-static char irqrmap[] = { 0,0,1,2,3,4,0,0,0,1,5,6,0,0,0,0 };
-
-#ifdef CONFIG_MCA_LEGACY
-/* mapping of the first four bits of the second POS register */
-static unsigned short mca_iomap[] = {
- 0x270, 0x260, 0x250, 0x240, 0x230, 0x220, 0x210, 0x200,
- 0x370, 0x360, 0x350, 0x340, 0x330, 0x320, 0x310, 0x300
-};
-/* bits 5-7 of the second POS register */
-static char mca_irqmap[] = { 12, 9, 3, 4, 5, 10, 11, 15 };
-#endif
-
-/*
- * Prototypes for Linux interface
- */
-
-static int eexp_open(struct net_device *dev);
-static int eexp_close(struct net_device *dev);
-static void eexp_timeout(struct net_device *dev);
-static netdev_tx_t eexp_xmit(struct sk_buff *buf,
- struct net_device *dev);
-
-static irqreturn_t eexp_irq(int irq, void *dev_addr);
-static void eexp_set_multicast(struct net_device *dev);
-
-/*
- * Prototypes for hardware access functions
- */
-
-static void eexp_hw_rx_pio(struct net_device *dev);
-static void eexp_hw_tx_pio(struct net_device *dev, unsigned short *buf,
- unsigned short len);
-static int eexp_hw_probe(struct net_device *dev,unsigned short ioaddr);
-static unsigned short eexp_hw_readeeprom(unsigned short ioaddr,
- unsigned char location);
-
-static unsigned short eexp_hw_lasttxstat(struct net_device *dev);
-static void eexp_hw_txrestart(struct net_device *dev);
-
-static void eexp_hw_txinit (struct net_device *dev);
-static void eexp_hw_rxinit (struct net_device *dev);
-
-static void eexp_hw_init586 (struct net_device *dev);
-static void eexp_setup_filter (struct net_device *dev);
-
-static char *eexp_ifmap[]={"AUI", "BNC", "RJ45"};
-enum eexp_iftype {AUI=0, BNC=1, TPE=2};
-
-#define STARTED_RU 2
-#define STARTED_CU 1
-
-/*
- * Primitive hardware access functions.
- */
-
-static inline unsigned short scb_status(struct net_device *dev)
-{
- return inw(dev->base_addr + 0xc008);
-}
-
-static inline unsigned short scb_rdcmd(struct net_device *dev)
-{
- return inw(dev->base_addr + 0xc00a);
-}
-
-static inline void scb_command(struct net_device *dev, unsigned short cmd)
-{
- outw(cmd, dev->base_addr + 0xc00a);
-}
-
-static inline void scb_wrcbl(struct net_device *dev, unsigned short val)
-{
- outw(val, dev->base_addr + 0xc00c);
-}
-
-static inline void scb_wrrfa(struct net_device *dev, unsigned short val)
-{
- outw(val, dev->base_addr + 0xc00e);
-}
-
-static inline void set_loopback(struct net_device *dev)
-{
- outb(inb(dev->base_addr + Config) | 2, dev->base_addr + Config);
-}
-
-static inline void clear_loopback(struct net_device *dev)
-{
- outb(inb(dev->base_addr + Config) & ~2, dev->base_addr + Config);
-}
-
-static inline unsigned short int SHADOW(short int addr)
-{
- addr &= 0x1f;
- if (addr > 0xf) addr += 0x3ff0;
- return addr + 0x4000;
-}
-
-/*
- * Linux interface
- */
-
-/*
- * checks for presence of EtherExpress card
- */
-
-static int __init do_express_probe(struct net_device *dev)
-{
- unsigned short *port;
- static unsigned short ports[] = { 0x240,0x300,0x310,0x270,0x320,0x340,0 };
- unsigned short ioaddr = dev->base_addr;
- int dev_irq = dev->irq;
- int err;
-
- dev->if_port = 0xff; /* not set */
-
-#ifdef CONFIG_MCA_LEGACY
- if (MCA_bus) {
- int slot = 0;
-
- /*
- * Only find one card at a time. Subsequent calls
- * will find others, however, proper multicard MCA
- * probing and setup can't be done with the
- * old-style Space.c init routines. -- ASF
- */
- while (slot != MCA_NOTFOUND) {
- int pos0, pos1;
-
- slot = mca_find_unused_adapter(0x628B, slot);
- if (slot == MCA_NOTFOUND)
- break;
-
- pos0 = mca_read_stored_pos(slot, 2);
- pos1 = mca_read_stored_pos(slot, 3);
- ioaddr = mca_iomap[pos1&0xf];
-
- dev->irq = mca_irqmap[(pos1>>4)&0x7];
-
- /*
- * XXX: Transceiver selection is done
- * differently on the MCA version.
- * How to get it to select something
- * other than external/AUI is currently
- * unknown. This code is just for looks. -- ASF
- */
- if ((pos0 & 0x7) == 0x1)
- dev->if_port = AUI;
- else if ((pos0 & 0x7) == 0x5) {
- if (pos1 & 0x80)
- dev->if_port = BNC;
- else
- dev->if_port = TPE;
- }
-
- mca_set_adapter_name(slot, "Intel EtherExpress 16 MCA");
- mca_set_adapter_procfn(slot, NULL, dev);
- mca_mark_as_used(slot);
-
- break;
- }
- }
-#endif
- if (ioaddr&0xfe00) {
- if (!request_region(ioaddr, EEXP_IO_EXTENT, "EtherExpress"))
- return -EBUSY;
- err = eexp_hw_probe(dev,ioaddr);
- release_region(ioaddr, EEXP_IO_EXTENT);
- return err;
- } else if (ioaddr)
- return -ENXIO;
-
- for (port=&ports[0] ; *port ; port++ )
- {
- unsigned short sum = 0;
- int i;
- if (!request_region(*port, EEXP_IO_EXTENT, "EtherExpress"))
- continue;
- for ( i=0 ; i<4 ; i++ )
- {
- unsigned short t;
- t = inb(*port + ID_PORT);
- sum |= (t>>4) << ((t & 0x03)<<2);
- }
- if (sum==0xbaba && !eexp_hw_probe(dev,*port)) {
- release_region(*port, EEXP_IO_EXTENT);
- return 0;
- }
- release_region(*port, EEXP_IO_EXTENT);
- dev->irq = dev_irq;
- }
- return -ENODEV;
-}
-
-#ifndef MODULE
-struct net_device * __init express_probe(int unit)
-{
- struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
- int err;
-
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
-
- err = do_express_probe(dev);
- if (!err)
- return dev;
- free_netdev(dev);
- return ERR_PTR(err);
-}
-#endif
-
-/*
- * open and initialize the adapter, ready for use
- */
-
-static int eexp_open(struct net_device *dev)
-{
- int ret;
- unsigned short ioaddr = dev->base_addr;
- struct net_local *lp = netdev_priv(dev);
-
-#if NET_DEBUG > 6
- printk(KERN_DEBUG "%s: eexp_open()\n", dev->name);
-#endif
-
- if (!dev->irq || !irqrmap[dev->irq])
- return -ENXIO;
-
- ret = request_irq(dev->irq, eexp_irq, 0, dev->name, dev);
- if (ret)
- return ret;
-
- if (!request_region(ioaddr, EEXP_IO_EXTENT, "EtherExpress")) {
- printk(KERN_WARNING "EtherExpress io port %x, is busy.\n"
- , ioaddr);
- goto err_out1;
- }
- if (!request_region(ioaddr+0x4000, EEXP_IO_EXTENT, "EtherExpress shadow")) {
- printk(KERN_WARNING "EtherExpress io port %x, is busy.\n"
- , ioaddr+0x4000);
- goto err_out2;
- }
- if (!request_region(ioaddr+0x8000, EEXP_IO_EXTENT, "EtherExpress shadow")) {
- printk(KERN_WARNING "EtherExpress io port %x, is busy.\n"
- , ioaddr+0x8000);
- goto err_out3;
- }
- if (!request_region(ioaddr+0xc000, EEXP_IO_EXTENT, "EtherExpress shadow")) {
- printk(KERN_WARNING "EtherExpress io port %x, is busy.\n"
- , ioaddr+0xc000);
- goto err_out4;
- }
-
- if (lp->width) {
- printk("%s: forcing ASIC to 8-bit mode\n", dev->name);
- outb(inb(dev->base_addr+Config)&~4, dev->base_addr+Config);
- }
-
- eexp_hw_init586(dev);
- netif_start_queue(dev);
-#if NET_DEBUG > 6
- printk(KERN_DEBUG "%s: leaving eexp_open()\n", dev->name);
-#endif
- return 0;
-
- err_out4:
- release_region(ioaddr+0x8000, EEXP_IO_EXTENT);
- err_out3:
- release_region(ioaddr+0x4000, EEXP_IO_EXTENT);
- err_out2:
- release_region(ioaddr, EEXP_IO_EXTENT);
- err_out1:
- free_irq(dev->irq, dev);
- return -EBUSY;
-}
-
-/*
- * close and disable the interface, leaving the 586 in reset.
- */
-
-static int eexp_close(struct net_device *dev)
-{
- unsigned short ioaddr = dev->base_addr;
- struct net_local *lp = netdev_priv(dev);
-
- int irq = dev->irq;
-
- netif_stop_queue(dev);
-
- outb(SIRQ_dis|irqrmap[irq],ioaddr+SET_IRQ);
- lp->started = 0;
- scb_command(dev, SCB_CUsuspend|SCB_RUsuspend);
- outb(0,ioaddr+SIGNAL_CA);
- free_irq(irq,dev);
- outb(i586_RST,ioaddr+EEPROM_Ctrl);
- release_region(ioaddr, EEXP_IO_EXTENT);
- release_region(ioaddr+0x4000, 16);
- release_region(ioaddr+0x8000, 16);
- release_region(ioaddr+0xc000, 16);
-
- return 0;
-}
-
-/*
- * This gets called when a higher level thinks we are broken. Check that
- * nothing has become jammed in the CU.
- */
-
-static void unstick_cu(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short ioaddr = dev->base_addr;
-
- if (lp->started)
- {
- if (time_after(jiffies, dev_trans_start(dev) + HZ/2))
- {
- if (lp->tx_link==lp->last_tx_restart)
- {
- unsigned short boguscount=200,rsst;
- printk(KERN_WARNING "%s: Retransmit timed out, status %04x, resetting...\n",
- dev->name, scb_status(dev));
- eexp_hw_txinit(dev);
- lp->last_tx_restart = 0;
- scb_wrcbl(dev, lp->tx_link);
- scb_command(dev, SCB_CUstart);
- outb(0,ioaddr+SIGNAL_CA);
- while (!SCB_complete(rsst=scb_status(dev)))
- {
- if (!--boguscount)
- {
- boguscount=200;
- printk(KERN_WARNING "%s: Reset timed out status %04x, retrying...\n",
- dev->name,rsst);
- scb_wrcbl(dev, lp->tx_link);
- scb_command(dev, SCB_CUstart);
- outb(0,ioaddr+SIGNAL_CA);
- }
- }
- netif_wake_queue(dev);
- }
- else
- {
- unsigned short status = scb_status(dev);
- if (SCB_CUdead(status))
- {
- unsigned short txstatus = eexp_hw_lasttxstat(dev);
- printk(KERN_WARNING "%s: Transmit timed out, CU not active status %04x %04x, restarting...\n",
- dev->name, status, txstatus);
- eexp_hw_txrestart(dev);
- }
- else
- {
- unsigned short txstatus = eexp_hw_lasttxstat(dev);
- if (netif_queue_stopped(dev) && !txstatus)
- {
- printk(KERN_WARNING "%s: CU wedged, status %04x %04x, resetting...\n",
- dev->name,status,txstatus);
- eexp_hw_init586(dev);
- netif_wake_queue(dev);
- }
- else
- {
- printk(KERN_WARNING "%s: transmit timed out\n", dev->name);
- }
- }
- }
- }
- }
- else
- {
- if (time_after(jiffies, lp->init_time + 10))
- {
- unsigned short status = scb_status(dev);
- printk(KERN_WARNING "%s: i82586 startup timed out, status %04x, resetting...\n",
- dev->name, status);
- eexp_hw_init586(dev);
- netif_wake_queue(dev);
- }
- }
-}
-
-static void eexp_timeout(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-#ifdef CONFIG_SMP
- unsigned long flags;
-#endif
- int status;
-
- disable_irq(dev->irq);
-
- /*
- * Best would be to use synchronize_irq(); spin_lock() here
- * lets make it work first..
- */
-
-#ifdef CONFIG_SMP
- spin_lock_irqsave(&lp->lock, flags);
-#endif
-
- status = scb_status(dev);
- unstick_cu(dev);
- printk(KERN_INFO "%s: transmit timed out, %s?\n", dev->name,
- (SCB_complete(status)?"lost interrupt":
- "board on fire"));
- dev->stats.tx_errors++;
- lp->last_tx = jiffies;
- if (!SCB_complete(status)) {
- scb_command(dev, SCB_CUabort);
- outb(0,dev->base_addr+SIGNAL_CA);
- }
- netif_wake_queue(dev);
-#ifdef CONFIG_SMP
- spin_unlock_irqrestore(&lp->lock, flags);
-#endif
-}
-
-/*
- * Called to transmit a packet, or to allow us to right ourselves
- * if the kernel thinks we've died.
- */
-static netdev_tx_t eexp_xmit(struct sk_buff *buf, struct net_device *dev)
-{
- short length = buf->len;
-#ifdef CONFIG_SMP
- struct net_local *lp = netdev_priv(dev);
- unsigned long flags;
-#endif
-
-#if NET_DEBUG > 6
- printk(KERN_DEBUG "%s: eexp_xmit()\n", dev->name);
-#endif
-
- if (buf->len < ETH_ZLEN) {
- if (skb_padto(buf, ETH_ZLEN))
- return NETDEV_TX_OK;
- length = ETH_ZLEN;
- }
-
- disable_irq(dev->irq);
-
- /*
- * Best would be to use synchronize_irq(); spin_lock() here
- * lets make it work first..
- */
-
-#ifdef CONFIG_SMP
- spin_lock_irqsave(&lp->lock, flags);
-#endif
-
- {
- unsigned short *data = (unsigned short *)buf->data;
-
- dev->stats.tx_bytes += length;
-
- eexp_hw_tx_pio(dev,data,length);
- }
- dev_kfree_skb(buf);
-#ifdef CONFIG_SMP
- spin_unlock_irqrestore(&lp->lock, flags);
-#endif
- enable_irq(dev->irq);
- return NETDEV_TX_OK;
-}
-
-/*
- * Handle an EtherExpress interrupt
- * If we've finished initializing, start the RU and CU up.
- * If we've already started, reap tx buffers, handle any received packets,
- * check to make sure we've not become wedged.
- */
-
-static unsigned short eexp_start_irq(struct net_device *dev,
- unsigned short status)
-{
- unsigned short ack_cmd = SCB_ack(status);
- struct net_local *lp = netdev_priv(dev);
- unsigned short ioaddr = dev->base_addr;
- if ((dev->flags & IFF_UP) && !(lp->started & STARTED_CU)) {
- short diag_status, tdr_status;
- while (SCB_CUstat(status)==2)
- status = scb_status(dev);
-#if NET_DEBUG > 4
- printk("%s: CU went non-active (status %04x)\n",
- dev->name, status);
-#endif
-
- outw(CONF_DIAG_RESULT & ~31, ioaddr + SM_PTR);
- diag_status = inw(ioaddr + SHADOW(CONF_DIAG_RESULT));
- if (diag_status & 1<<11) {
- printk(KERN_WARNING "%s: 82586 failed self-test\n",
- dev->name);
- } else if (!(diag_status & 1<<13)) {
- printk(KERN_WARNING "%s: 82586 self-test failed to complete\n", dev->name);
- }
-
- outw(CONF_TDR_RESULT & ~31, ioaddr + SM_PTR);
- tdr_status = inw(ioaddr + SHADOW(CONF_TDR_RESULT));
- if (tdr_status & (TDR_SHORT|TDR_OPEN)) {
- printk(KERN_WARNING "%s: TDR reports cable %s at %d tick%s\n", dev->name, (tdr_status & TDR_SHORT)?"short":"broken", tdr_status & TDR_TIME, ((tdr_status & TDR_TIME) != 1) ? "s" : "");
- }
- else if (tdr_status & TDR_XCVRPROBLEM) {
- printk(KERN_WARNING "%s: TDR reports transceiver problem\n", dev->name);
- }
- else if (tdr_status & TDR_LINKOK) {
-#if NET_DEBUG > 4
- printk(KERN_DEBUG "%s: TDR reports link OK\n", dev->name);
-#endif
- } else {
- printk("%s: TDR is ga-ga (status %04x)\n", dev->name,
- tdr_status);
- }
-
- lp->started |= STARTED_CU;
- scb_wrcbl(dev, lp->tx_link);
- /* if the RU isn't running, start it now */
- if (!(lp->started & STARTED_RU)) {
- ack_cmd |= SCB_RUstart;
- scb_wrrfa(dev, lp->rx_buf_start);
- lp->rx_ptr = lp->rx_buf_start;
- lp->started |= STARTED_RU;
- }
- ack_cmd |= SCB_CUstart | 0x2000;
- }
-
- if ((dev->flags & IFF_UP) && !(lp->started & STARTED_RU) && SCB_RUstat(status)==4)
- lp->started|=STARTED_RU;
-
- return ack_cmd;
-}
-
-static void eexp_cmd_clear(struct net_device *dev)
-{
- unsigned long int oldtime = jiffies;
- while (scb_rdcmd(dev) && (time_before(jiffies, oldtime + 10)));
- if (scb_rdcmd(dev)) {
- printk("%s: command didn't clear\n", dev->name);
- }
-}
-
-static irqreturn_t eexp_irq(int dummy, void *dev_info)
-{
- struct net_device *dev = dev_info;
- struct net_local *lp;
- unsigned short ioaddr,status,ack_cmd;
- unsigned short old_read_ptr, old_write_ptr;
-
- lp = netdev_priv(dev);
- ioaddr = dev->base_addr;
-
- spin_lock(&lp->lock);
-
- old_read_ptr = inw(ioaddr+READ_PTR);
- old_write_ptr = inw(ioaddr+WRITE_PTR);
-
- outb(SIRQ_dis|irqrmap[dev->irq], ioaddr+SET_IRQ);
-
- status = scb_status(dev);
-
-#if NET_DEBUG > 4
- printk(KERN_DEBUG "%s: interrupt (status %x)\n", dev->name, status);
-#endif
-
- if (lp->started == (STARTED_CU | STARTED_RU)) {
-
- do {
- eexp_cmd_clear(dev);
-
- ack_cmd = SCB_ack(status);
- scb_command(dev, ack_cmd);
- outb(0,ioaddr+SIGNAL_CA);
-
- eexp_cmd_clear(dev);
-
- if (SCB_complete(status)) {
- if (!eexp_hw_lasttxstat(dev)) {
- printk("%s: tx interrupt but no status\n", dev->name);
- }
- }
-
- if (SCB_rxdframe(status))
- eexp_hw_rx_pio(dev);
-
- status = scb_status(dev);
- } while (status & 0xc000);
-
- if (SCB_RUdead(status))
- {
- printk(KERN_WARNING "%s: RU stopped: status %04x\n",
- dev->name,status);
-#if 0
- printk(KERN_WARNING "%s: cur_rfd=%04x, cur_rbd=%04x\n", dev->name, lp->cur_rfd, lp->cur_rbd);
- outw(lp->cur_rfd, ioaddr+READ_PTR);
- printk(KERN_WARNING "%s: [%04x]\n", dev->name, inw(ioaddr+DATAPORT));
- outw(lp->cur_rfd+6, ioaddr+READ_PTR);
- printk(KERN_WARNING "%s: rbd is %04x\n", dev->name, rbd= inw(ioaddr+DATAPORT));
- outw(rbd, ioaddr+READ_PTR);
- printk(KERN_WARNING "%s: [%04x %04x] ", dev->name, inw(ioaddr+DATAPORT), inw(ioaddr+DATAPORT));
- outw(rbd+8, ioaddr+READ_PTR);
- printk("[%04x]\n", inw(ioaddr+DATAPORT));
-#endif
- dev->stats.rx_errors++;
-#if 1
- eexp_hw_rxinit(dev);
-#else
- lp->cur_rfd = lp->first_rfd;
-#endif
- scb_wrrfa(dev, lp->rx_buf_start);
- scb_command(dev, SCB_RUstart);
- outb(0,ioaddr+SIGNAL_CA);
- }
- } else {
- if (status & 0x8000)
- ack_cmd = eexp_start_irq(dev, status);
- else
- ack_cmd = SCB_ack(status);
- scb_command(dev, ack_cmd);
- outb(0,ioaddr+SIGNAL_CA);
- }
-
- eexp_cmd_clear(dev);
-
- outb(SIRQ_en|irqrmap[dev->irq], ioaddr+SET_IRQ);
-
-#if NET_DEBUG > 6
- printk("%s: leaving eexp_irq()\n", dev->name);
-#endif
- outw(old_read_ptr, ioaddr+READ_PTR);
- outw(old_write_ptr, ioaddr+WRITE_PTR);
-
- spin_unlock(&lp->lock);
- return IRQ_HANDLED;
-}
-
-/*
- * Hardware access functions
- */
-
-/*
- * Set the cable type to use.
- */
-
-static void eexp_hw_set_interface(struct net_device *dev)
-{
- unsigned char oldval = inb(dev->base_addr + 0x300e);
- oldval &= ~0x82;
- switch (dev->if_port) {
- case TPE:
- oldval |= 0x2;
- case BNC:
- oldval |= 0x80;
- break;
- }
- outb(oldval, dev->base_addr+0x300e);
- mdelay(20);
-}
-
-/*
- * Check all the receive buffers, and hand any received packets
- * to the upper levels. Basic sanity check on each frame
- * descriptor, though we don't bother trying to fix broken ones.
- */
-
-static void eexp_hw_rx_pio(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short rx_block = lp->rx_ptr;
- unsigned short boguscount = lp->num_rx_bufs;
- unsigned short ioaddr = dev->base_addr;
- unsigned short status;
-
-#if NET_DEBUG > 6
- printk(KERN_DEBUG "%s: eexp_hw_rx()\n", dev->name);
-#endif
-
- do {
- unsigned short rfd_cmd, rx_next, pbuf, pkt_len;
-
- outw(rx_block, ioaddr + READ_PTR);
- status = inw(ioaddr + DATAPORT);
-
- if (FD_Done(status))
- {
- rfd_cmd = inw(ioaddr + DATAPORT);
- rx_next = inw(ioaddr + DATAPORT);
- pbuf = inw(ioaddr + DATAPORT);
-
- outw(pbuf, ioaddr + READ_PTR);
- pkt_len = inw(ioaddr + DATAPORT);
-
- if (rfd_cmd!=0x0000)
- {
- printk(KERN_WARNING "%s: rfd_cmd not zero:0x%04x\n",
- dev->name, rfd_cmd);
- continue;
- }
- else if (pbuf!=rx_block+0x16)
- {
- printk(KERN_WARNING "%s: rfd and rbd out of sync 0x%04x 0x%04x\n",
- dev->name, rx_block+0x16, pbuf);
- continue;
- }
- else if ((pkt_len & 0xc000)!=0xc000)
- {
- printk(KERN_WARNING "%s: EOF or F not set on received buffer (%04x)\n",
- dev->name, pkt_len & 0xc000);
- continue;
- }
- else if (!FD_OK(status))
- {
- dev->stats.rx_errors++;
- if (FD_CRC(status))
- dev->stats.rx_crc_errors++;
- if (FD_Align(status))
- dev->stats.rx_frame_errors++;
- if (FD_Resrc(status))
- dev->stats.rx_fifo_errors++;
- if (FD_DMA(status))
- dev->stats.rx_over_errors++;
- if (FD_Short(status))
- dev->stats.rx_length_errors++;
- }
- else
- {
- struct sk_buff *skb;
- pkt_len &= 0x3fff;
- skb = dev_alloc_skb(pkt_len+16);
- if (skb == NULL)
- {
- printk(KERN_WARNING "%s: Memory squeeze, dropping packet\n",dev->name);
- dev->stats.rx_dropped++;
- break;
- }
- skb_reserve(skb, 2);
- outw(pbuf+10, ioaddr+READ_PTR);
- insw(ioaddr+DATAPORT, skb_put(skb,pkt_len),(pkt_len+1)>>1);
- skb->protocol = eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pkt_len;
- }
- outw(rx_block, ioaddr+WRITE_PTR);
- outw(0, ioaddr+DATAPORT);
- outw(0, ioaddr+DATAPORT);
- rx_block = rx_next;
- }
- } while (FD_Done(status) && boguscount--);
- lp->rx_ptr = rx_block;
-}
-
-/*
- * Hand a packet to the card for transmission
- * If we get here, we MUST have already checked
- * to make sure there is room in the transmit
- * buffer region.
- */
-
-static void eexp_hw_tx_pio(struct net_device *dev, unsigned short *buf,
- unsigned short len)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short ioaddr = dev->base_addr;
-
- if (LOCKUP16 || lp->width) {
- /* Stop the CU so that there is no chance that it
- jumps off to a bogus address while we are writing the
- pointer to the next transmit packet in 8-bit mode --
- this eliminates the "CU wedged" errors in 8-bit mode.
- (Zoltan Szilagyi 10-12-96) */
- scb_command(dev, SCB_CUsuspend);
- outw(0xFFFF, ioaddr+SIGNAL_CA);
- }
-
- outw(lp->tx_head, ioaddr + WRITE_PTR);
-
- outw(0x0000, ioaddr + DATAPORT);
- outw(Cmd_INT|Cmd_Xmit, ioaddr + DATAPORT);
- outw(lp->tx_head+0x08, ioaddr + DATAPORT);
- outw(lp->tx_head+0x0e, ioaddr + DATAPORT);
-
- outw(0x0000, ioaddr + DATAPORT);
- outw(0x0000, ioaddr + DATAPORT);
- outw(lp->tx_head+0x08, ioaddr + DATAPORT);
-
- outw(0x8000|len, ioaddr + DATAPORT);
- outw(-1, ioaddr + DATAPORT);
- outw(lp->tx_head+0x16, ioaddr + DATAPORT);
- outw(0, ioaddr + DATAPORT);
-
- outsw(ioaddr + DATAPORT, buf, (len+1)>>1);
-
- outw(lp->tx_tail+0xc, ioaddr + WRITE_PTR);
- outw(lp->tx_head, ioaddr + DATAPORT);
-
- dev->trans_start = jiffies;
- lp->tx_tail = lp->tx_head;
- if (lp->tx_head==TX_BUF_START+((lp->num_tx_bufs-1)*TX_BUF_SIZE))
- lp->tx_head = TX_BUF_START;
- else
- lp->tx_head += TX_BUF_SIZE;
- if (lp->tx_head != lp->tx_reap)
- netif_wake_queue(dev);
-
- if (LOCKUP16 || lp->width) {
- /* Restart the CU so that the packet can actually
- be transmitted. (Zoltan Szilagyi 10-12-96) */
- scb_command(dev, SCB_CUresume);
- outw(0xFFFF, ioaddr+SIGNAL_CA);
- }
-
- dev->stats.tx_packets++;
- lp->last_tx = jiffies;
-}
-
-static const struct net_device_ops eexp_netdev_ops = {
- .ndo_open = eexp_open,
- .ndo_stop = eexp_close,
- .ndo_start_xmit = eexp_xmit,
- .ndo_set_multicast_list = eexp_set_multicast,
- .ndo_tx_timeout = eexp_timeout,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-/*
- * Sanity check the suspected EtherExpress card
- * Read hardware address, reset card, size memory and initialize buffer
- * memory pointers. These are held in netdev_priv(), in case someone has more
- * than one card in a machine.
- */
-
-static int __init eexp_hw_probe(struct net_device *dev, unsigned short ioaddr)
-{
- unsigned short hw_addr[3];
- unsigned char buswidth;
- unsigned int memory_size;
- int i;
- unsigned short xsum = 0;
- struct net_local *lp = netdev_priv(dev);
-
- printk("%s: EtherExpress 16 at %#x ",dev->name,ioaddr);
-
- outb(ASIC_RST, ioaddr+EEPROM_Ctrl);
- outb(0, ioaddr+EEPROM_Ctrl);
- udelay(500);
- outb(i586_RST, ioaddr+EEPROM_Ctrl);
-
- hw_addr[0] = eexp_hw_readeeprom(ioaddr,2);
- hw_addr[1] = eexp_hw_readeeprom(ioaddr,3);
- hw_addr[2] = eexp_hw_readeeprom(ioaddr,4);
-
- /* Standard Address or Compaq LTE Address */
- if (!((hw_addr[2]==0x00aa && ((hw_addr[1] & 0xff00)==0x0000)) ||
- (hw_addr[2]==0x0080 && ((hw_addr[1] & 0xff00)==0x5F00))))
- {
- printk(" rejected: invalid address %04x%04x%04x\n",
- hw_addr[2],hw_addr[1],hw_addr[0]);
- return -ENODEV;
- }
-
- /* Calculate the EEPROM checksum. Carry on anyway if it's bad,
- * though.
- */
- for (i = 0; i < 64; i++)
- xsum += eexp_hw_readeeprom(ioaddr, i);
- if (xsum != 0xbaba)
- printk(" (bad EEPROM xsum 0x%02x)", xsum);
-
- dev->base_addr = ioaddr;
- for ( i=0 ; i<6 ; i++ )
- dev->dev_addr[i] = ((unsigned char *)hw_addr)[5-i];
-
- {
- static const char irqmap[] = { 0, 9, 3, 4, 5, 10, 11, 0 };
- unsigned short setupval = eexp_hw_readeeprom(ioaddr,0);
-
- /* Use the IRQ from EEPROM if none was given */
- if (!dev->irq)
- dev->irq = irqmap[setupval>>13];
-
- if (dev->if_port == 0xff) {
- dev->if_port = !(setupval & 0x1000) ? AUI :
- eexp_hw_readeeprom(ioaddr,5) & 0x1 ? TPE : BNC;
- }
-
- buswidth = !((setupval & 0x400) >> 10);
- }
-
- memset(lp, 0, sizeof(struct net_local));
- spin_lock_init(&lp->lock);
-
- printk("(IRQ %d, %s connector, %d-bit bus", dev->irq,
- eexp_ifmap[dev->if_port], buswidth?8:16);
-
- if (!request_region(dev->base_addr + 0x300e, 1, "EtherExpress"))
- return -EBUSY;
-
- eexp_hw_set_interface(dev);
-
- release_region(dev->base_addr + 0x300e, 1);
-
- /* Find out how much RAM we have on the card */
- outw(0, dev->base_addr + WRITE_PTR);
- for (i = 0; i < 32768; i++)
- outw(0, dev->base_addr + DATAPORT);
-
- for (memory_size = 0; memory_size < 64; memory_size++)
- {
- outw(memory_size<<10, dev->base_addr + READ_PTR);
- if (inw(dev->base_addr+DATAPORT))
- break;
- outw(memory_size<<10, dev->base_addr + WRITE_PTR);
- outw(memory_size | 0x5000, dev->base_addr+DATAPORT);
- outw(memory_size<<10, dev->base_addr + READ_PTR);
- if (inw(dev->base_addr+DATAPORT) != (memory_size | 0x5000))
- break;
- }
-
- /* Sort out the number of buffers. We may have 16, 32, 48 or 64k
- * of RAM to play with.
- */
- lp->num_tx_bufs = 4;
- lp->rx_buf_end = 0x3ff6;
- switch (memory_size)
- {
- case 64:
- lp->rx_buf_end += 0x4000;
- case 48:
- lp->num_tx_bufs += 4;
- lp->rx_buf_end += 0x4000;
- case 32:
- lp->rx_buf_end += 0x4000;
- case 16:
- printk(", %dk RAM)\n", memory_size);
- break;
- default:
- printk(") bad memory size (%dk).\n", memory_size);
- return -ENODEV;
- break;
- }
-
- lp->rx_buf_start = TX_BUF_START + (lp->num_tx_bufs*TX_BUF_SIZE);
- lp->width = buswidth;
-
- dev->netdev_ops = &eexp_netdev_ops;
- dev->watchdog_timeo = 2*HZ;
-
- return register_netdev(dev);
-}
-
-/*
- * Read a word from the EtherExpress on-board serial EEPROM.
- * The EEPROM contains 64 words of 16 bits.
- */
-static unsigned short __init eexp_hw_readeeprom(unsigned short ioaddr,
- unsigned char location)
-{
- unsigned short cmd = 0x180|(location&0x7f);
- unsigned short rval = 0,wval = EC_CS|i586_RST;
- int i;
-
- outb(EC_CS|i586_RST,ioaddr+EEPROM_Ctrl);
- for (i=0x100 ; i ; i>>=1 )
- {
- if (cmd&i)
- wval |= EC_Wr;
- else
- wval &= ~EC_Wr;
-
- outb(wval,ioaddr+EEPROM_Ctrl);
- outb(wval|EC_Clk,ioaddr+EEPROM_Ctrl);
- eeprom_delay();
- outb(wval,ioaddr+EEPROM_Ctrl);
- eeprom_delay();
- }
- wval &= ~EC_Wr;
- outb(wval,ioaddr+EEPROM_Ctrl);
- for (i=0x8000 ; i ; i>>=1 )
- {
- outb(wval|EC_Clk,ioaddr+EEPROM_Ctrl);
- eeprom_delay();
- if (inb(ioaddr+EEPROM_Ctrl)&EC_Rd)
- rval |= i;
- outb(wval,ioaddr+EEPROM_Ctrl);
- eeprom_delay();
- }
- wval &= ~EC_CS;
- outb(wval|EC_Clk,ioaddr+EEPROM_Ctrl);
- eeprom_delay();
- outb(wval,ioaddr+EEPROM_Ctrl);
- eeprom_delay();
- return rval;
-}
-
-/*
- * Reap tx buffers and return last transmit status.
- * if ==0 then either:
- * a) we're not transmitting anything, so why are we here?
- * b) we've died.
- * otherwise, Stat_Busy(return) means we've still got some packets
- * to transmit, Stat_Done(return) means our buffers should be empty
- * again
- */
-
-static unsigned short eexp_hw_lasttxstat(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short tx_block = lp->tx_reap;
- unsigned short status;
-
- if (!netif_queue_stopped(dev) && lp->tx_head==lp->tx_reap)
- return 0x0000;
-
- do
- {
- outw(tx_block & ~31, dev->base_addr + SM_PTR);
- status = inw(dev->base_addr + SHADOW(tx_block));
- if (!Stat_Done(status))
- {
- lp->tx_link = tx_block;
- return status;
- }
- else
- {
- lp->last_tx_restart = 0;
- dev->stats.collisions += Stat_NoColl(status);
- if (!Stat_OK(status))
- {
- char *whatsup = NULL;
- dev->stats.tx_errors++;
- if (Stat_Abort(status))
- dev->stats.tx_aborted_errors++;
- if (Stat_TNoCar(status)) {
- whatsup = "aborted, no carrier";
- dev->stats.tx_carrier_errors++;
- }
- if (Stat_TNoCTS(status)) {
- whatsup = "aborted, lost CTS";
- dev->stats.tx_carrier_errors++;
- }
- if (Stat_TNoDMA(status)) {
- whatsup = "FIFO underran";
- dev->stats.tx_fifo_errors++;
- }
- if (Stat_TXColl(status)) {
- whatsup = "aborted, too many collisions";
- dev->stats.tx_aborted_errors++;
- }
- if (whatsup)
- printk(KERN_INFO "%s: transmit %s\n",
- dev->name, whatsup);
- }
- else
- dev->stats.tx_packets++;
- }
- if (tx_block == TX_BUF_START+((lp->num_tx_bufs-1)*TX_BUF_SIZE))
- lp->tx_reap = tx_block = TX_BUF_START;
- else
- lp->tx_reap = tx_block += TX_BUF_SIZE;
- netif_wake_queue(dev);
- }
- while (lp->tx_reap != lp->tx_head);
-
- lp->tx_link = lp->tx_tail + 0x08;
-
- return status;
-}
-
-/*
- * This should never happen. It is called when some higher routine detects
- * that the CU has stopped, to try to restart it from the last packet we knew
- * we were working on, or the idle loop if we had finished for the time.
- */
-
-static void eexp_hw_txrestart(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short ioaddr = dev->base_addr;
-
- lp->last_tx_restart = lp->tx_link;
- scb_wrcbl(dev, lp->tx_link);
- scb_command(dev, SCB_CUstart);
- outb(0,ioaddr+SIGNAL_CA);
-
- {
- unsigned short boguscount=50,failcount=5;
- while (!scb_status(dev))
- {
- if (!--boguscount)
- {
- if (--failcount)
- {
- printk(KERN_WARNING "%s: CU start timed out, status %04x, cmd %04x\n", dev->name, scb_status(dev), scb_rdcmd(dev));
- scb_wrcbl(dev, lp->tx_link);
- scb_command(dev, SCB_CUstart);
- outb(0,ioaddr+SIGNAL_CA);
- boguscount = 100;
- }
- else
- {
- printk(KERN_WARNING "%s: Failed to restart CU, resetting board...\n",dev->name);
- eexp_hw_init586(dev);
- netif_wake_queue(dev);
- return;
- }
- }
- }
- }
-}
-
-/*
- * Writes down the list of transmit buffers into card memory. Each
- * entry consists of an 82586 transmit command, followed by a jump
- * pointing to itself. When we want to transmit a packet, we write
- * the data into the appropriate transmit buffer and then modify the
- * preceding jump to point at the new transmit command. This means that
- * the 586 command unit is continuously active.
- */
-
-static void eexp_hw_txinit(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short tx_block = TX_BUF_START;
- unsigned short curtbuf;
- unsigned short ioaddr = dev->base_addr;
-
- for ( curtbuf=0 ; curtbuf<lp->num_tx_bufs ; curtbuf++ )
- {
- outw(tx_block, ioaddr + WRITE_PTR);
-
- outw(0x0000, ioaddr + DATAPORT);
- outw(Cmd_INT|Cmd_Xmit, ioaddr + DATAPORT);
- outw(tx_block+0x08, ioaddr + DATAPORT);
- outw(tx_block+0x0e, ioaddr + DATAPORT);
-
- outw(0x0000, ioaddr + DATAPORT);
- outw(0x0000, ioaddr + DATAPORT);
- outw(tx_block+0x08, ioaddr + DATAPORT);
-
- outw(0x8000, ioaddr + DATAPORT);
- outw(-1, ioaddr + DATAPORT);
- outw(tx_block+0x16, ioaddr + DATAPORT);
- outw(0x0000, ioaddr + DATAPORT);
-
- tx_block += TX_BUF_SIZE;
- }
- lp->tx_head = TX_BUF_START;
- lp->tx_reap = TX_BUF_START;
- lp->tx_tail = tx_block - TX_BUF_SIZE;
- lp->tx_link = lp->tx_tail + 0x08;
- lp->rx_buf_start = tx_block;
-
-}
-
-/*
- * Write the circular list of receive buffer descriptors to card memory.
- * The end of the list isn't marked, which means that the 82586 receive
- * unit will loop until buffers become available (this avoids it giving us
- * "out of resources" messages).
- */
-
-static void eexp_hw_rxinit(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short rx_block = lp->rx_buf_start;
- unsigned short ioaddr = dev->base_addr;
-
- lp->num_rx_bufs = 0;
- lp->rx_first = lp->rx_ptr = rx_block;
- do
- {
- lp->num_rx_bufs++;
-
- outw(rx_block, ioaddr + WRITE_PTR);
-
- outw(0, ioaddr + DATAPORT); outw(0, ioaddr+DATAPORT);
- outw(rx_block + RX_BUF_SIZE, ioaddr+DATAPORT);
- outw(0xffff, ioaddr+DATAPORT);
-
- outw(0x0000, ioaddr+DATAPORT);
- outw(0xdead, ioaddr+DATAPORT);
- outw(0xdead, ioaddr+DATAPORT);
- outw(0xdead, ioaddr+DATAPORT);
- outw(0xdead, ioaddr+DATAPORT);
- outw(0xdead, ioaddr+DATAPORT);
- outw(0xdead, ioaddr+DATAPORT);
-
- outw(0x0000, ioaddr+DATAPORT);
- outw(rx_block + RX_BUF_SIZE + 0x16, ioaddr+DATAPORT);
- outw(rx_block + 0x20, ioaddr+DATAPORT);
- outw(0, ioaddr+DATAPORT);
- outw(RX_BUF_SIZE-0x20, ioaddr+DATAPORT);
-
- lp->rx_last = rx_block;
- rx_block += RX_BUF_SIZE;
- } while (rx_block <= lp->rx_buf_end-RX_BUF_SIZE);
-
-
- /* Make first Rx frame descriptor point to first Rx buffer
- descriptor */
- outw(lp->rx_first + 6, ioaddr+WRITE_PTR);
- outw(lp->rx_first + 0x16, ioaddr+DATAPORT);
-
- /* Close Rx frame descriptor ring */
- outw(lp->rx_last + 4, ioaddr+WRITE_PTR);
- outw(lp->rx_first, ioaddr+DATAPORT);
-
- /* Close Rx buffer descriptor ring */
- outw(lp->rx_last + 0x16 + 2, ioaddr+WRITE_PTR);
- outw(lp->rx_first + 0x16, ioaddr+DATAPORT);
-
-}
-
-/*
- * Un-reset the 586, and start the configuration sequence. We don't wait for
- * this to finish, but allow the interrupt handler to start the CU and RU for
- * us. We can't start the receive/transmission system up before we know that
- * the hardware is configured correctly.
- */
-
-static void eexp_hw_init586(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned short ioaddr = dev->base_addr;
- int i;
-
-#if NET_DEBUG > 6
- printk("%s: eexp_hw_init586()\n", dev->name);
-#endif
-
- lp->started = 0;
-
- set_loopback(dev);
-
- outb(SIRQ_dis|irqrmap[dev->irq],ioaddr+SET_IRQ);
-
- /* Download the startup code */
- outw(lp->rx_buf_end & ~31, ioaddr + SM_PTR);
- outw(lp->width?0x0001:0x0000, ioaddr + 0x8006);
- outw(0x0000, ioaddr + 0x8008);
- outw(0x0000, ioaddr + 0x800a);
- outw(0x0000, ioaddr + 0x800c);
- outw(0x0000, ioaddr + 0x800e);
-
- for (i = 0; i < ARRAY_SIZE(start_code) * 2; i+=32) {
- int j;
- outw(i, ioaddr + SM_PTR);
- for (j = 0; j < 16 && (i+j)/2 < ARRAY_SIZE(start_code); j+=2)
- outw(start_code[(i+j)/2],
- ioaddr+0x4000+j);
- for (j = 0; j < 16 && (i+j+16)/2 < ARRAY_SIZE(start_code); j+=2)
- outw(start_code[(i+j+16)/2],
- ioaddr+0x8000+j);
- }
-
- /* Do we want promiscuous mode or multicast? */
- outw(CONF_PROMISC & ~31, ioaddr+SM_PTR);
- i = inw(ioaddr+SHADOW(CONF_PROMISC));
- outw((dev->flags & IFF_PROMISC)?(i|1):(i & ~1),
- ioaddr+SHADOW(CONF_PROMISC));
- lp->was_promisc = dev->flags & IFF_PROMISC;
-#if 0
- eexp_setup_filter(dev);
-#endif
-
- /* Write our hardware address */
- outw(CONF_HWADDR & ~31, ioaddr+SM_PTR);
- outw(((unsigned short *)dev->dev_addr)[0], ioaddr+SHADOW(CONF_HWADDR));
- outw(((unsigned short *)dev->dev_addr)[1],
- ioaddr+SHADOW(CONF_HWADDR+2));
- outw(((unsigned short *)dev->dev_addr)[2],
- ioaddr+SHADOW(CONF_HWADDR+4));
-
- eexp_hw_txinit(dev);
- eexp_hw_rxinit(dev);
-
- outb(0,ioaddr+EEPROM_Ctrl);
- mdelay(5);
-
- scb_command(dev, 0xf000);
- outb(0,ioaddr+SIGNAL_CA);
-
- outw(0, ioaddr+SM_PTR);
-
- {
- unsigned short rboguscount=50,rfailcount=5;
- while (inw(ioaddr+0x4000))
- {
- if (!--rboguscount)
- {
- printk(KERN_WARNING "%s: i82586 reset timed out, kicking...\n",
- dev->name);
- scb_command(dev, 0);
- outb(0,ioaddr+SIGNAL_CA);
- rboguscount = 100;
- if (!--rfailcount)
- {
- printk(KERN_WARNING "%s: i82586 not responding, giving up.\n",
- dev->name);
- return;
- }
- }
- }
- }
-
- scb_wrcbl(dev, CONF_LINK);
- scb_command(dev, 0xf000|SCB_CUstart);
- outb(0,ioaddr+SIGNAL_CA);
-
- {
- unsigned short iboguscount=50,ifailcount=5;
- while (!scb_status(dev))
- {
- if (!--iboguscount)
- {
- if (--ifailcount)
- {
- printk(KERN_WARNING "%s: i82586 initialization timed out, status %04x, cmd %04x\n",
- dev->name, scb_status(dev), scb_rdcmd(dev));
- scb_wrcbl(dev, CONF_LINK);
- scb_command(dev, 0xf000|SCB_CUstart);
- outb(0,ioaddr+SIGNAL_CA);
- iboguscount = 100;
- }
- else
- {
- printk(KERN_WARNING "%s: Failed to initialize i82586, giving up.\n",dev->name);
- return;
- }
- }
- }
- }
-
- clear_loopback(dev);
- outb(SIRQ_en|irqrmap[dev->irq],ioaddr+SET_IRQ);
-
- lp->init_time = jiffies;
-#if NET_DEBUG > 6
- printk("%s: leaving eexp_hw_init586()\n", dev->name);
-#endif
-}
-
-static void eexp_setup_filter(struct net_device *dev)
-{
- struct netdev_hw_addr *ha;
- unsigned short ioaddr = dev->base_addr;
- int count = netdev_mc_count(dev);
- int i;
- if (count > 8) {
- printk(KERN_INFO "%s: too many multicast addresses (%d)\n",
- dev->name, count);
- count = 8;
- }
-
- outw(CONF_NR_MULTICAST & ~31, ioaddr+SM_PTR);
- outw(6*count, ioaddr+SHADOW(CONF_NR_MULTICAST));
- i = 0;
- netdev_for_each_mc_addr(ha, dev) {
- unsigned short *data = (unsigned short *) ha->addr;
-
- if (i == count)
- break;
- outw((CONF_MULTICAST+(6*i)) & ~31, ioaddr+SM_PTR);
- outw(data[0], ioaddr+SHADOW(CONF_MULTICAST+(6*i)));
- outw((CONF_MULTICAST+(6*i)+2) & ~31, ioaddr+SM_PTR);
- outw(data[1], ioaddr+SHADOW(CONF_MULTICAST+(6*i)+2));
- outw((CONF_MULTICAST+(6*i)+4) & ~31, ioaddr+SM_PTR);
- outw(data[2], ioaddr+SHADOW(CONF_MULTICAST+(6*i)+4));
- i++;
- }
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- */
-static void
-eexp_set_multicast(struct net_device *dev)
-{
- unsigned short ioaddr = dev->base_addr;
- struct net_local *lp = netdev_priv(dev);
- int kick = 0, i;
- if ((dev->flags & IFF_PROMISC) != lp->was_promisc) {
- outw(CONF_PROMISC & ~31, ioaddr+SM_PTR);
- i = inw(ioaddr+SHADOW(CONF_PROMISC));
- outw((dev->flags & IFF_PROMISC)?(i|1):(i & ~1),
- ioaddr+SHADOW(CONF_PROMISC));
- lp->was_promisc = dev->flags & IFF_PROMISC;
- kick = 1;
- }
- if (!(dev->flags & IFF_PROMISC)) {
- eexp_setup_filter(dev);
- if (lp->old_mc_count != netdev_mc_count(dev)) {
- kick = 1;
- lp->old_mc_count = netdev_mc_count(dev);
- }
- }
- if (kick) {
- unsigned long oj;
- scb_command(dev, SCB_CUsuspend);
- outb(0, ioaddr+SIGNAL_CA);
- outb(0, ioaddr+SIGNAL_CA);
-#if 0
- printk("%s: waiting for CU to go suspended\n", dev->name);
-#endif
- oj = jiffies;
- while ((SCB_CUstat(scb_status(dev)) == 2) &&
- (time_before(jiffies, oj + 2000)));
- if (SCB_CUstat(scb_status(dev)) == 2)
- printk("%s: warning, CU didn't stop\n", dev->name);
- lp->started &= ~(STARTED_CU);
- scb_wrcbl(dev, CONF_LINK);
- scb_command(dev, SCB_CUstart);
- outb(0, ioaddr+SIGNAL_CA);
- }
-}
-
-
-/*
- * MODULE stuff
- */
-
-#ifdef MODULE
-
-#define EEXP_MAX_CARDS 4 /* max number of cards to support */
-
-static struct net_device *dev_eexp[EEXP_MAX_CARDS];
-static int irq[EEXP_MAX_CARDS];
-static int io[EEXP_MAX_CARDS];
-
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-MODULE_PARM_DESC(io, "EtherExpress 16 I/O base address(es)");
-MODULE_PARM_DESC(irq, "EtherExpress 16 IRQ number(s)");
-MODULE_LICENSE("GPL");
-
-
-/* Ideally the user would give us io=, irq= for every card. If any parameters
- * are specified, we verify and then use them. If no parameters are given, we
- * autoprobe for one card only.
- */
-int __init init_module(void)
-{
- struct net_device *dev;
- int this_dev, found = 0;
-
- for (this_dev = 0; this_dev < EEXP_MAX_CARDS; this_dev++) {
- dev = alloc_etherdev(sizeof(struct net_local));
- dev->irq = irq[this_dev];
- dev->base_addr = io[this_dev];
- if (io[this_dev] == 0) {
- if (this_dev)
- break;
- printk(KERN_NOTICE "eexpress.c: Module autoprobe not recommended, give io=xx.\n");
- }
- if (do_express_probe(dev) == 0) {
- dev_eexp[this_dev] = dev;
- found++;
- continue;
- }
- printk(KERN_WARNING "eexpress.c: Failed to register card at 0x%x.\n", io[this_dev]);
- free_netdev(dev);
- break;
- }
- if (found)
- return 0;
- return -ENXIO;
-}
-
-void __exit cleanup_module(void)
-{
- int this_dev;
-
- for (this_dev = 0; this_dev < EEXP_MAX_CARDS; this_dev++) {
- struct net_device *dev = dev_eexp[this_dev];
- if (dev) {
- unregister_netdev(dev);
- free_netdev(dev);
- }
- }
-}
-#endif
-
-/*
- * Local Variables:
- * c-file-style: "linux"
- * tab-width: 8
- * End:
- */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 13:25:35 +0000