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Diffstat (limited to 'drivers/net/ethernet/i825xx/3c523.c')
-rw-r--r--drivers/net/ethernet/i825xx/3c523.c1312
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diff --git a/drivers/net/ethernet/i825xx/3c523.c b/drivers/net/ethernet/i825xx/3c523.c
deleted file mode 100644
index 8451ecd4c1ec..000000000000
--- a/drivers/net/ethernet/i825xx/3c523.c
+++ /dev/null
@@ -1,1312 +0,0 @@
-/*
- net-3-driver for the 3c523 Etherlink/MC card (i82586 Ethernet chip)
-
-
- This is an extension to the Linux operating system, and is covered by the
- same GNU General Public License that covers that work.
-
- Copyright 1995, 1996 by Chris Beauregard (cpbeaure@undergrad.math.uwaterloo.ca)
-
- This is basically Michael Hipp's ni52 driver, with a new probing
- algorithm and some minor changes to the 82586 CA and reset routines.
- Thanks a lot Michael for a really clean i82586 implementation! Unless
- otherwise documented in ni52.c, any bugs are mine.
-
- Contrary to the Ethernet-HOWTO, this isn't based on the 3c507 driver in
- any way. The ni52 is a lot easier to modify.
-
- sources:
- ni52.c
-
- Crynwr packet driver collection was a great reference for my first
- attempt at this sucker. The 3c507 driver also helped, until I noticed
- that ni52.c was a lot nicer.
-
- EtherLink/MC: Micro Channel Ethernet Adapter Technical Reference
- Manual, courtesy of 3Com CardFacts, documents the 3c523-specific
- stuff. Information on CardFacts is found in the Ethernet HOWTO.
- Also see <a href="http://www.3com.com/">
-
- Microprocessor Communications Support Chips, T.J. Byers, ISBN
- 0-444-01224-9, has a section on the i82586. It tells you just enough
- to know that you really don't want to learn how to program the chip.
-
- The original device probe code was stolen from ps2esdi.c
-
- Known Problems:
- Since most of the code was stolen from ni52.c, you'll run across the
- same bugs in the 0.62 version of ni52.c, plus maybe a few because of
- the 3c523 idiosynchacies. The 3c523 has 16K of RAM though, so there
- shouldn't be the overrun problem that the 8K ni52 has.
-
- This driver is for a 16K adapter. It should work fine on the 64K
- adapters, but it will only use one of the 4 banks of RAM. Modifying
- this for the 64K version would require a lot of heinous bank
- switching, which I'm sure not interested in doing. If you try to
- implement a bank switching version, you'll basically have to remember
- what bank is enabled and do a switch every time you access a memory
- location that's not current. You'll also have to remap pointers on
- the driver side, because it only knows about 16K of the memory.
- Anyone desperate or masochistic enough to try?
-
- It seems to be stable now when multiple transmit buffers are used. I
- can't see any performance difference, but then I'm working on a 386SX.
-
- Multicast doesn't work. It doesn't even pretend to work. Don't use
- it. Don't compile your kernel with multicast support. I don't know
- why.
-
- Features:
- This driver is useable as a loadable module. If you try to specify an
- IRQ or a IO address (via insmod 3c523.o irq=xx io=0xyyy), it will
- search the MCA slots until it finds a 3c523 with the specified
- parameters.
-
- This driver does support multiple ethernet cards when used as a module
- (up to MAX_3C523_CARDS, the default being 4)
-
- This has been tested with both BNC and TP versions, internal and
- external transceivers. Haven't tested with the 64K version (that I
- know of).
-
- History:
- Jan 1st, 1996
- first public release
- Feb 4th, 1996
- update to 1.3.59, incorporated multicast diffs from ni52.c
- Feb 15th, 1996
- added shared irq support
- Apr 1999
- added support for multiple cards when used as a module
- added option to disable multicast as is causes problems
- Ganesh Sittampalam <ganesh.sittampalam@magdalen.oxford.ac.uk>
- Stuart Adamson <stuart.adamson@compsoc.net>
- Nov 2001
- added support for ethtool (jgarzik)
-
- $Header: /fsys2/home/chrisb/linux-1.3.59-MCA/drivers/net/RCS/3c523.c,v 1.1 1996/02/05 01:53:46 chrisb Exp chrisb $
- */
-
-#define DRV_NAME "3c523"
-#define DRV_VERSION "17-Nov-2001"
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/skbuff.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/mca-legacy.h>
-#include <linux/ethtool.h>
-#include <linux/bitops.h>
-#include <linux/jiffies.h>
-
-#include <asm/uaccess.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-
-#include "3c523.h"
-
-/*************************************************************************/
-#define DEBUG /* debug on */
-#define SYSBUSVAL 0 /* 1 = 8 Bit, 0 = 16 bit - 3c523 only does 16 bit */
-#undef ELMC_MULTICAST /* Disable multicast support as it is somewhat seriously broken at the moment */
-
-#define make32(ptr16) (p->memtop + (short) (ptr16) )
-#define make24(ptr32) ((char *) (ptr32) - p->base)
-#define make16(ptr32) ((unsigned short) ((unsigned long) (ptr32) - (unsigned long) p->memtop ))
-
-/*************************************************************************/
-/*
- Tables to which we can map values in the configuration registers.
- */
-static int irq_table[] __initdata = {
- 12, 7, 3, 9
-};
-
-static int csr_table[] __initdata = {
- 0x300, 0x1300, 0x2300, 0x3300
-};
-
-static int shm_table[] __initdata = {
- 0x0c0000, 0x0c8000, 0x0d0000, 0x0d8000
-};
-
-/******************* how to calculate the buffers *****************************
-
-
- * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
- * --------------- in a different (more stable?) mode. Only in this mode it's
- * possible to configure the driver with 'NO_NOPCOMMANDS'
-
-sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
-sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
-sizeof(rfd) = 24; sizeof(rbd) = 12;
-sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
-sizeof(nop_cmd) = 8;
-
- * if you don't know the driver, better do not change this values: */
-
-#define RECV_BUFF_SIZE 1524 /* slightly oversized */
-#define XMIT_BUFF_SIZE 1524 /* slightly oversized */
-#define NUM_XMIT_BUFFS 1 /* config for both, 8K and 16K shmem */
-#define NUM_RECV_BUFFS_8 4 /* config for 8K shared mem */
-#define NUM_RECV_BUFFS_16 9 /* config for 16K shared mem */
-
-#if (NUM_XMIT_BUFFS == 1)
-#define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */
-#endif
-
-/**************************************************************************/
-
-#define DELAY(x) { mdelay(32 * x); }
-
-/* a much shorter delay: */
-#define DELAY_16(); { udelay(16) ; }
-
-/* wait for command with timeout: */
-#define WAIT_4_SCB_CMD() { int i; \
- for(i=0;i<1024;i++) { \
- if(!p->scb->cmd) break; \
- DELAY_16(); \
- if(i == 1023) { \
- pr_warning("%s:%d: scb_cmd timed out .. resetting i82586\n",\
- dev->name,__LINE__); \
- elmc_id_reset586(); } } }
-
-static irqreturn_t elmc_interrupt(int irq, void *dev_id);
-static int elmc_open(struct net_device *dev);
-static int elmc_close(struct net_device *dev);
-static netdev_tx_t elmc_send_packet(struct sk_buff *, struct net_device *);
-static struct net_device_stats *elmc_get_stats(struct net_device *dev);
-static void elmc_timeout(struct net_device *dev);
-#ifdef ELMC_MULTICAST
-static void set_multicast_list(struct net_device *dev);
-#endif
-static const struct ethtool_ops netdev_ethtool_ops;
-
-/* helper-functions */
-static int init586(struct net_device *dev);
-static int check586(struct net_device *dev, unsigned long where, unsigned size);
-static void alloc586(struct net_device *dev);
-static void startrecv586(struct net_device *dev);
-static void *alloc_rfa(struct net_device *dev, void *ptr);
-static void elmc_rcv_int(struct net_device *dev);
-static void elmc_xmt_int(struct net_device *dev);
-static void elmc_rnr_int(struct net_device *dev);
-
-struct priv {
- unsigned long base;
- char *memtop;
- unsigned long mapped_start; /* Start of ioremap */
- volatile struct rfd_struct *rfd_last, *rfd_top, *rfd_first;
- volatile struct scp_struct *scp; /* volatile is important */
- volatile struct iscp_struct *iscp; /* volatile is important */
- volatile struct scb_struct *scb; /* volatile is important */
- volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS];
-#if (NUM_XMIT_BUFFS == 1)
- volatile struct transmit_cmd_struct *xmit_cmds[2];
- volatile struct nop_cmd_struct *nop_cmds[2];
-#else
- volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
- volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
-#endif
- volatile int nop_point, num_recv_buffs;
- volatile char *xmit_cbuffs[NUM_XMIT_BUFFS];
- volatile int xmit_count, xmit_last;
- volatile int slot;
-};
-
-#define elmc_attn586() {elmc_do_attn586(dev->base_addr,ELMC_CTRL_INTE);}
-#define elmc_reset586() {elmc_do_reset586(dev->base_addr,ELMC_CTRL_INTE);}
-
-/* with interrupts disabled - this will clear the interrupt bit in the
- 3c523 control register, and won't put it back. This effectively
- disables interrupts on the card. */
-#define elmc_id_attn586() {elmc_do_attn586(dev->base_addr,0);}
-#define elmc_id_reset586() {elmc_do_reset586(dev->base_addr,0);}
-
-/*************************************************************************/
-/*
- Do a Channel Attention on the 3c523. This is extremely board dependent.
- */
-static void elmc_do_attn586(int ioaddr, int ints)
-{
- /* the 3c523 requires a minimum of 500 ns. The delays here might be
- a little too large, and hence they may cut the performance of the
- card slightly. If someone who knows a little more about Linux
- timing would care to play with these, I'd appreciate it. */
-
- /* this bit masking stuff is crap. I'd rather have separate
- registers with strobe triggers for each of these functions. <sigh>
- Ya take what ya got. */
-
- outb(ELMC_CTRL_RST | 0x3 | ELMC_CTRL_CA | ints, ioaddr + ELMC_CTRL);
- DELAY_16(); /* > 500 ns */
- outb(ELMC_CTRL_RST | 0x3 | ints, ioaddr + ELMC_CTRL);
-}
-
-/*************************************************************************/
-/*
- Reset the 82586 on the 3c523. Also very board dependent.
- */
-static void elmc_do_reset586(int ioaddr, int ints)
-{
- /* toggle the RST bit low then high */
- outb(0x3 | ELMC_CTRL_LBK, ioaddr + ELMC_CTRL);
- DELAY_16(); /* > 500 ns */
- outb(ELMC_CTRL_RST | ELMC_CTRL_LBK | 0x3, ioaddr + ELMC_CTRL);
-
- elmc_do_attn586(ioaddr, ints);
-}
-
-/**********************************************
- * close device
- */
-
-static int elmc_close(struct net_device *dev)
-{
- netif_stop_queue(dev);
- elmc_id_reset586(); /* the hard way to stop the receiver */
- free_irq(dev->irq, dev);
- return 0;
-}
-
-/**********************************************
- * open device
- */
-
-static int elmc_open(struct net_device *dev)
-{
- int ret;
-
- elmc_id_attn586(); /* disable interrupts */
-
- ret = request_irq(dev->irq, elmc_interrupt, IRQF_SHARED,
- dev->name, dev);
- if (ret) {
- pr_err("%s: couldn't get irq %d\n", dev->name, dev->irq);
- elmc_id_reset586();
- return ret;
- }
- alloc586(dev);
- init586(dev);
- startrecv586(dev);
- netif_start_queue(dev);
- return 0; /* most done by init */
-}
-
-/**********************************************
- * Check to see if there's an 82586 out there.
- */
-
-static int __init check586(struct net_device *dev, unsigned long where, unsigned size)
-{
- struct priv *p = netdev_priv(dev);
- char *iscp_addrs[2];
- int i = 0;
-
- p->base = (unsigned long) isa_bus_to_virt((unsigned long)where) + size - 0x01000000;
- p->memtop = isa_bus_to_virt((unsigned long)where) + size;
- p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
- memset((char *) p->scp, 0, sizeof(struct scp_struct));
- p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */
-
- iscp_addrs[0] = isa_bus_to_virt((unsigned long)where);
- iscp_addrs[1] = (char *) p->scp - sizeof(struct iscp_struct);
-
- for (i = 0; i < 2; i++) {
- p->iscp = (struct iscp_struct *) iscp_addrs[i];
- memset((char *) p->iscp, 0, sizeof(struct iscp_struct));
-
- p->scp->iscp = make24(p->iscp);
- p->iscp->busy = 1;
-
- elmc_id_reset586();
-
- /* reset586 does an implicit CA */
-
- /* apparently, you sometimes have to kick the 82586 twice... */
- elmc_id_attn586();
- DELAY(1);
-
- if (p->iscp->busy) { /* i82586 clears 'busy' after successful init */
- return 0;
- }
- }
- return 1;
-}
-
-/******************************************************************
- * set iscp at the right place, called by elmc_probe and open586.
- */
-
-static void alloc586(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
-
- elmc_id_reset586();
- DELAY(2);
-
- p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS);
- p->scb = (struct scb_struct *) isa_bus_to_virt(dev->mem_start);
- p->iscp = (struct iscp_struct *) ((char *) p->scp - sizeof(struct iscp_struct));
-
- memset((char *) p->iscp, 0, sizeof(struct iscp_struct));
- memset((char *) p->scp, 0, sizeof(struct scp_struct));
-
- p->scp->iscp = make24(p->iscp);
- p->scp->sysbus = SYSBUSVAL;
- p->iscp->scb_offset = make16(p->scb);
-
- p->iscp->busy = 1;
- elmc_id_reset586();
- elmc_id_attn586();
-
- DELAY(2);
-
- if (p->iscp->busy)
- pr_err("%s: Init-Problems (alloc).\n", dev->name);
-
- memset((char *) p->scb, 0, sizeof(struct scb_struct));
-}
-
-/*****************************************************************/
-
-static int elmc_getinfo(char *buf, int slot, void *d)
-{
- int len = 0;
- struct net_device *dev = d;
-
- if (dev == NULL)
- return len;
-
- len += sprintf(buf + len, "Revision: 0x%x\n",
- inb(dev->base_addr + ELMC_REVISION) & 0xf);
- len += sprintf(buf + len, "IRQ: %d\n", dev->irq);
- len += sprintf(buf + len, "IO Address: %#lx-%#lx\n", dev->base_addr,
- dev->base_addr + ELMC_IO_EXTENT);
- len += sprintf(buf + len, "Memory: %#lx-%#lx\n", dev->mem_start,
- dev->mem_end - 1);
- len += sprintf(buf + len, "Transceiver: %s\n", dev->if_port ?
- "External" : "Internal");
- len += sprintf(buf + len, "Device: %s\n", dev->name);
- len += sprintf(buf + len, "Hardware Address: %pM\n",
- dev->dev_addr);
-
- return len;
-} /* elmc_getinfo() */
-
-static const struct net_device_ops netdev_ops = {
- .ndo_open = elmc_open,
- .ndo_stop = elmc_close,
- .ndo_get_stats = elmc_get_stats,
- .ndo_start_xmit = elmc_send_packet,
- .ndo_tx_timeout = elmc_timeout,
-#ifdef ELMC_MULTICAST
- .ndo_set_rx_mode = set_multicast_list,
-#endif
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-/*****************************************************************/
-
-static int __init do_elmc_probe(struct net_device *dev)
-{
- static int slot;
- int base_addr = dev->base_addr;
- int irq = dev->irq;
- u_char status = 0;
- u_char revision = 0;
- int i = 0;
- unsigned int size = 0;
- int retval;
- struct priv *pr = netdev_priv(dev);
-
- if (MCA_bus == 0) {
- return -ENODEV;
- }
- /* search through the slots for the 3c523. */
- slot = mca_find_adapter(ELMC_MCA_ID, 0);
- while (slot != -1) {
- status = mca_read_stored_pos(slot, 2);
-
- dev->irq=irq_table[(status & ELMC_STATUS_IRQ_SELECT) >> 6];
- dev->base_addr=csr_table[(status & ELMC_STATUS_CSR_SELECT) >> 1];
-
- /*
- If we're trying to match a specified irq or IO address,
- we'll reject a match unless it's what we're looking for.
- Also reject it if the card is already in use.
- */
-
- if ((irq && irq != dev->irq) ||
- (base_addr && base_addr != dev->base_addr)) {
- slot = mca_find_adapter(ELMC_MCA_ID, slot + 1);
- continue;
- }
- if (!request_region(dev->base_addr, ELMC_IO_EXTENT, DRV_NAME)) {
- slot = mca_find_adapter(ELMC_MCA_ID, slot + 1);
- continue;
- }
-
- /* found what we're looking for... */
- break;
- }
-
- /* we didn't find any 3c523 in the slots we checked for */
- if (slot == MCA_NOTFOUND)
- return (base_addr || irq) ? -ENXIO : -ENODEV;
-
- mca_set_adapter_name(slot, "3Com 3c523 Etherlink/MC");
- mca_set_adapter_procfn(slot, (MCA_ProcFn) elmc_getinfo, dev);
-
- /* if we get this far, adapter has been found - carry on */
- pr_info("%s: 3c523 adapter found in slot %d\n", dev->name, slot + 1);
-
- /* Now we extract configuration info from the card.
- The 3c523 provides information in two of the POS registers, but
- the second one is only needed if we want to tell the card what IRQ
- to use. I suspect that whoever sets the thing up initially would
- prefer we don't screw with those things.
-
- Note that we read the status info when we found the card...
-
- See 3c523.h for more details.
- */
-
- /* revision is stored in the first 4 bits of the revision register */
- revision = inb(dev->base_addr + ELMC_REVISION) & 0xf;
-
- /* according to docs, we read the interrupt and write it back to
- the IRQ select register, since the POST might not configure the IRQ
- properly. */
- switch (dev->irq) {
- case 3:
- mca_write_pos(slot, 3, 0x04);
- break;
- case 7:
- mca_write_pos(slot, 3, 0x02);
- break;
- case 9:
- mca_write_pos(slot, 3, 0x08);
- break;
- case 12:
- mca_write_pos(slot, 3, 0x01);
- break;
- }
-
- pr->slot = slot;
-
- pr_info("%s: 3Com 3c523 Rev 0x%x at %#lx\n", dev->name, (int) revision,
- dev->base_addr);
-
- /* Determine if we're using the on-board transceiver (i.e. coax) or
- an external one. The information is pretty much useless, but I
- guess it's worth brownie points. */
- dev->if_port = (status & ELMC_STATUS_DISABLE_THIN);
-
- /* The 3c523 has a 24K chunk of memory. The first 16K is the
- shared memory, while the last 8K is for the EtherStart BIOS ROM.
- Which we don't care much about here. We'll just tell Linux that
- we're using 16K. MCA won't permit address space conflicts caused
- by not mapping the other 8K. */
- dev->mem_start = shm_table[(status & ELMC_STATUS_MEMORY_SELECT) >> 3];
-
- /* We're using MCA, so it's a given that the information about memory
- size is correct. The Crynwr drivers do something like this. */
-
- elmc_id_reset586(); /* seems like a good idea before checking it... */
-
- size = 0x4000; /* check for 16K mem */
- if (!check586(dev, dev->mem_start, size)) {
- pr_err("%s: memprobe, Can't find memory at 0x%lx!\n", dev->name,
- dev->mem_start);
- retval = -ENODEV;
- goto err_out;
- }
- dev->mem_end = dev->mem_start + size; /* set mem_end showed by 'ifconfig' */
-
- pr->memtop = isa_bus_to_virt(dev->mem_start) + size;
- pr->base = (unsigned long) isa_bus_to_virt(dev->mem_start) + size - 0x01000000;
- alloc586(dev);
-
- elmc_id_reset586(); /* make sure it doesn't generate spurious ints */
-
- /* set number of receive-buffs according to memsize */
- pr->num_recv_buffs = NUM_RECV_BUFFS_16;
-
- /* dump all the assorted information */
- pr_info("%s: IRQ %d, %sternal xcvr, memory %#lx-%#lx.\n", dev->name,
- dev->irq, dev->if_port ? "ex" : "in",
- dev->mem_start, dev->mem_end - 1);
-
- /* The hardware address for the 3c523 is stored in the first six
- bytes of the IO address. */
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = inb(dev->base_addr + i);
-
- pr_info("%s: hardware address %pM\n",
- dev->name, dev->dev_addr);
-
- dev->netdev_ops = &netdev_ops;
- dev->watchdog_timeo = HZ;
- dev->ethtool_ops = &netdev_ethtool_ops;
-
- /* note that we haven't actually requested the IRQ from the kernel.
- That gets done in elmc_open(). I'm not sure that's such a good idea,
- but it works, so I'll go with it. */
-
-#ifndef ELMC_MULTICAST
- dev->flags&=~IFF_MULTICAST; /* Multicast doesn't work */
-#endif
-
- retval = register_netdev(dev);
- if (retval)
- goto err_out;
-
- return 0;
-err_out:
- mca_set_adapter_procfn(slot, NULL, NULL);
- release_region(dev->base_addr, ELMC_IO_EXTENT);
- return retval;
-}
-
-#ifdef MODULE
-static void cleanup_card(struct net_device *dev)
-{
- mca_set_adapter_procfn(((struct priv *)netdev_priv(dev))->slot,
- NULL, NULL);
- release_region(dev->base_addr, ELMC_IO_EXTENT);
-}
-#else
-struct net_device * __init elmc_probe(int unit)
-{
- struct net_device *dev = alloc_etherdev(sizeof(struct priv));
- int err;
-
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
-
- err = do_elmc_probe(dev);
- if (err)
- goto out;
- return dev;
-out:
- free_netdev(dev);
- return ERR_PTR(err);
-}
-#endif
-
-/**********************************************
- * init the chip (elmc-interrupt should be disabled?!)
- * needs a correct 'allocated' memory
- */
-
-static int init586(struct net_device *dev)
-{
- void *ptr;
- unsigned long s;
- int i, result = 0;
- struct priv *p = netdev_priv(dev);
- volatile struct configure_cmd_struct *cfg_cmd;
- volatile struct iasetup_cmd_struct *ias_cmd;
- volatile struct tdr_cmd_struct *tdr_cmd;
- volatile struct mcsetup_cmd_struct *mc_cmd;
- struct netdev_hw_addr *ha;
- int num_addrs = netdev_mc_count(dev);
-
- ptr = (void *) ((char *) p->scb + sizeof(struct scb_struct));
-
- cfg_cmd = (struct configure_cmd_struct *) ptr; /* configure-command */
- cfg_cmd->cmd_status = 0;
- cfg_cmd->cmd_cmd = CMD_CONFIGURE | CMD_LAST;
- cfg_cmd->cmd_link = 0xffff;
-
- cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */
- cfg_cmd->fifo = 0x08; /* fifo-limit (8=tx:32/rx:64) */
- cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */
- cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */
- cfg_cmd->priority = 0x00;
- cfg_cmd->ifs = 0x60;
- cfg_cmd->time_low = 0x00;
- cfg_cmd->time_high = 0xf2;
- cfg_cmd->promisc = 0;
- if (dev->flags & (IFF_ALLMULTI | IFF_PROMISC))
- cfg_cmd->promisc = 1;
- cfg_cmd->carr_coll = 0x00;
-
- p->scb->cbl_offset = make16(cfg_cmd);
-
- p->scb->cmd = CUC_START; /* cmd.-unit start */
- elmc_id_attn586();
-
- s = jiffies; /* warning: only active with interrupts on !! */
- while (!(cfg_cmd->cmd_status & STAT_COMPL)) {
- if (time_after(jiffies, s + 30*HZ/100))
- break;
- }
-
- if ((cfg_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_COMPL | STAT_OK)) {
- pr_warning("%s (elmc): configure command failed: %x\n", dev->name, cfg_cmd->cmd_status);
- return 1;
- }
- /*
- * individual address setup
- */
- ias_cmd = (struct iasetup_cmd_struct *) ptr;
-
- ias_cmd->cmd_status = 0;
- ias_cmd->cmd_cmd = CMD_IASETUP | CMD_LAST;
- ias_cmd->cmd_link = 0xffff;
-
- memcpy((char *) &ias_cmd->iaddr, (char *) dev->dev_addr, ETH_ALEN);
-
- p->scb->cbl_offset = make16(ias_cmd);
-
- p->scb->cmd = CUC_START; /* cmd.-unit start */
- elmc_id_attn586();
-
- s = jiffies;
- while (!(ias_cmd->cmd_status & STAT_COMPL)) {
- if (time_after(jiffies, s + 30*HZ/100))
- break;
- }
-
- if ((ias_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_OK | STAT_COMPL)) {
- pr_warning("%s (elmc): individual address setup command failed: %04x\n",
- dev->name, ias_cmd->cmd_status);
- return 1;
- }
- /*
- * TDR, wire check .. e.g. no resistor e.t.c
- */
- tdr_cmd = (struct tdr_cmd_struct *) ptr;
-
- tdr_cmd->cmd_status = 0;
- tdr_cmd->cmd_cmd = CMD_TDR | CMD_LAST;
- tdr_cmd->cmd_link = 0xffff;
- tdr_cmd->status = 0;
-
- p->scb->cbl_offset = make16(tdr_cmd);
-
- p->scb->cmd = CUC_START; /* cmd.-unit start */
- elmc_attn586();
-
- s = jiffies;
- while (!(tdr_cmd->cmd_status & STAT_COMPL)) {
- if (time_after(jiffies, s + 30*HZ/100)) {
- pr_warning("%s: %d Problems while running the TDR.\n", dev->name, __LINE__);
- result = 1;
- break;
- }
- }
-
- if (!result) {
- DELAY(2); /* wait for result */
- result = tdr_cmd->status;
-
- p->scb->cmd = p->scb->status & STAT_MASK;
- elmc_id_attn586(); /* ack the interrupts */
-
- if (result & TDR_LNK_OK) {
- /* empty */
- } else if (result & TDR_XCVR_PRB) {
- pr_warning("%s: TDR: Transceiver problem!\n", dev->name);
- } else if (result & TDR_ET_OPN) {
- pr_warning("%s: TDR: No correct termination %d clocks away.\n", dev->name, result & TDR_TIMEMASK);
- } else if (result & TDR_ET_SRT) {
- if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
- pr_warning("%s: TDR: Detected a short circuit %d clocks away.\n", dev->name, result & TDR_TIMEMASK);
- } else {
- pr_warning("%s: TDR: Unknown status %04x\n", dev->name, result);
- }
- }
- /*
- * ack interrupts
- */
- p->scb->cmd = p->scb->status & STAT_MASK;
- elmc_id_attn586();
-
- /*
- * alloc nop/xmit-cmds
- */
-#if (NUM_XMIT_BUFFS == 1)
- for (i = 0; i < 2; i++) {
- p->nop_cmds[i] = (struct nop_cmd_struct *) ptr;
- p->nop_cmds[i]->cmd_cmd = CMD_NOP;
- p->nop_cmds[i]->cmd_status = 0;
- p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
- ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
- }
- p->xmit_cmds[0] = (struct transmit_cmd_struct *) ptr; /* transmit cmd/buff 0 */
- ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
-#else
- for (i = 0; i < NUM_XMIT_BUFFS; i++) {
- p->nop_cmds[i] = (struct nop_cmd_struct *) ptr;
- p->nop_cmds[i]->cmd_cmd = CMD_NOP;
- p->nop_cmds[i]->cmd_status = 0;
- p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i]));
- ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
- p->xmit_cmds[i] = (struct transmit_cmd_struct *) ptr; /*transmit cmd/buff 0 */
- ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
- }
-#endif
-
- ptr = alloc_rfa(dev, (void *) ptr); /* init receive-frame-area */
-
- /*
- * Multicast setup
- */
-
- if (num_addrs) {
- /* I don't understand this: do we really need memory after the init? */
- int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
- if (len <= 0) {
- pr_err("%s: Ooooops, no memory for MC-Setup!\n", dev->name);
- } else {
- if (len < num_addrs) {
- num_addrs = len;
- pr_warning("%s: Sorry, can only apply %d MC-Address(es).\n",
- dev->name, num_addrs);
- }
- mc_cmd = (struct mcsetup_cmd_struct *) ptr;
- mc_cmd->cmd_status = 0;
- mc_cmd->cmd_cmd = CMD_MCSETUP | CMD_LAST;
- mc_cmd->cmd_link = 0xffff;
- mc_cmd->mc_cnt = num_addrs * 6;
- i = 0;
- netdev_for_each_mc_addr(ha, dev)
- memcpy((char *) mc_cmd->mc_list[i++],
- ha->addr, 6);
- p->scb->cbl_offset = make16(mc_cmd);
- p->scb->cmd = CUC_START;
- elmc_id_attn586();
- s = jiffies;
- while (!(mc_cmd->cmd_status & STAT_COMPL)) {
- if (time_after(jiffies, s + 30*HZ/100))
- break;
- }
- if (!(mc_cmd->cmd_status & STAT_COMPL)) {
- pr_warning("%s: Can't apply multicast-address-list.\n", dev->name);
- }
- }
- }
- /*
- * alloc xmit-buffs / init xmit_cmds
- */
- for (i = 0; i < NUM_XMIT_BUFFS; i++) {
- p->xmit_cbuffs[i] = (char *) ptr; /* char-buffs */
- ptr = (char *) ptr + XMIT_BUFF_SIZE;
- p->xmit_buffs[i] = (struct tbd_struct *) ptr; /* TBD */
- ptr = (char *) ptr + sizeof(struct tbd_struct);
- if ((void *) ptr > (void *) p->iscp) {
- pr_err("%s: not enough shared-mem for your configuration!\n", dev->name);
- return 1;
- }
- memset((char *) (p->xmit_cmds[i]), 0, sizeof(struct transmit_cmd_struct));
- memset((char *) (p->xmit_buffs[i]), 0, sizeof(struct tbd_struct));
- p->xmit_cmds[i]->cmd_status = STAT_COMPL;
- p->xmit_cmds[i]->cmd_cmd = CMD_XMIT | CMD_INT;
- p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
- p->xmit_buffs[i]->next = 0xffff;
- p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
- }
-
- p->xmit_count = 0;
- p->xmit_last = 0;
-#ifndef NO_NOPCOMMANDS
- p->nop_point = 0;
-#endif
-
- /*
- * 'start transmitter' (nop-loop)
- */
-#ifndef NO_NOPCOMMANDS
- p->scb->cbl_offset = make16(p->nop_cmds[0]);
- p->scb->cmd = CUC_START;
- elmc_id_attn586();
- WAIT_4_SCB_CMD();
-#else
- p->xmit_cmds[0]->cmd_link = 0xffff;
- p->xmit_cmds[0]->cmd_cmd = CMD_XMIT | CMD_LAST | CMD_INT;
-#endif
-
- return 0;
-}
-
-/******************************************************
- * This is a helper routine for elmc_rnr_int() and init586().
- * It sets up the Receive Frame Area (RFA).
- */
-
-static void *alloc_rfa(struct net_device *dev, void *ptr)
-{
- volatile struct rfd_struct *rfd = (struct rfd_struct *) ptr;
- volatile struct rbd_struct *rbd;
- int i;
- struct priv *p = netdev_priv(dev);
-
- memset((char *) rfd, 0, sizeof(struct rfd_struct) * p->num_recv_buffs);
- p->rfd_first = rfd;
-
- for (i = 0; i < p->num_recv_buffs; i++) {
- rfd[i].next = make16(rfd + (i + 1) % p->num_recv_buffs);
- }
- rfd[p->num_recv_buffs - 1].last = RFD_SUSP; /* RU suspend */
-
- ptr = (void *) (rfd + p->num_recv_buffs);
-
- rbd = (struct rbd_struct *) ptr;
- ptr = (void *) (rbd + p->num_recv_buffs);
-
- /* clr descriptors */
- memset((char *) rbd, 0, sizeof(struct rbd_struct) * p->num_recv_buffs);
-
- for (i = 0; i < p->num_recv_buffs; i++) {
- rbd[i].next = make16((rbd + (i + 1) % p->num_recv_buffs));
- rbd[i].size = RECV_BUFF_SIZE;
- rbd[i].buffer = make24(ptr);
- ptr = (char *) ptr + RECV_BUFF_SIZE;
- }
-
- p->rfd_top = p->rfd_first;
- p->rfd_last = p->rfd_first + p->num_recv_buffs - 1;
-
- p->scb->rfa_offset = make16(p->rfd_first);
- p->rfd_first->rbd_offset = make16(rbd);
-
- return ptr;
-}
-
-
-/**************************************************
- * Interrupt Handler ...
- */
-
-static irqreturn_t
-elmc_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- unsigned short stat;
- struct priv *p;
-
- if (!netif_running(dev)) {
- /* The 3c523 has this habit of generating interrupts during the
- reset. I'm not sure if the ni52 has this same problem, but it's
- really annoying if we haven't finished initializing it. I was
- hoping all the elmc_id_* commands would disable this, but I
- might have missed a few. */
-
- elmc_id_attn586(); /* ack inter. and disable any more */
- return IRQ_HANDLED;
- } else if (!(ELMC_CTRL_INT & inb(dev->base_addr + ELMC_CTRL))) {
- /* wasn't this device */
- return IRQ_NONE;
- }
- /* reading ELMC_CTRL also clears the INT bit. */
-
- p = netdev_priv(dev);
-
- while ((stat = p->scb->status & STAT_MASK))
- {
- p->scb->cmd = stat;
- elmc_attn586(); /* ack inter. */
-
- if (stat & STAT_CX) {
- /* command with I-bit set complete */
- elmc_xmt_int(dev);
- }
- if (stat & STAT_FR) {
- /* received a frame */
- elmc_rcv_int(dev);
- }
-#ifndef NO_NOPCOMMANDS
- if (stat & STAT_CNA) {
- /* CU went 'not ready' */
- if (netif_running(dev)) {
- pr_warning("%s: oops! CU has left active state. stat: %04x/%04x.\n",
- dev->name, (int) stat, (int) p->scb->status);
- }
- }
-#endif
-
- if (stat & STAT_RNR) {
- /* RU went 'not ready' */
-
- if (p->scb->status & RU_SUSPEND) {
- /* special case: RU_SUSPEND */
-
- WAIT_4_SCB_CMD();
- p->scb->cmd = RUC_RESUME;
- elmc_attn586();
- } else {
- pr_warning("%s: Receiver-Unit went 'NOT READY': %04x/%04x.\n",
- dev->name, (int) stat, (int) p->scb->status);
- elmc_rnr_int(dev);
- }
- }
- WAIT_4_SCB_CMD(); /* wait for ack. (elmc_xmt_int can be faster than ack!!) */
- if (p->scb->cmd) { /* timed out? */
- break;
- }
- }
- return IRQ_HANDLED;
-}
-
-/*******************************************************
- * receive-interrupt
- */
-
-static void elmc_rcv_int(struct net_device *dev)
-{
- int status;
- unsigned short totlen;
- struct sk_buff *skb;
- struct rbd_struct *rbd;
- struct priv *p = netdev_priv(dev);
-
- for (; (status = p->rfd_top->status) & STAT_COMPL;) {
- rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
-
- if (status & STAT_OK) { /* frame received without error? */
- if ((totlen = rbd->status) & RBD_LAST) { /* the first and the last buffer? */
- totlen &= RBD_MASK; /* length of this frame */
- rbd->status = 0;
- skb = netdev_alloc_skb(dev, totlen + 2);
- if (skb != NULL) {
- skb_reserve(skb, 2); /* 16 byte alignment */
- skb_put(skb,totlen);
- skb_copy_to_linear_data(skb, (char *) p->base+(unsigned long) rbd->buffer,totlen);
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += totlen;
- } else {
- dev->stats.rx_dropped++;
- }
- } else {
- pr_warning("%s: received oversized frame.\n", dev->name);
- dev->stats.rx_dropped++;
- }
- } else { /* frame !(ok), only with 'save-bad-frames' */
- pr_warning("%s: oops! rfd-error-status: %04x\n", dev->name, status);
- dev->stats.rx_errors++;
- }
- p->rfd_top->status = 0;
- p->rfd_top->last = RFD_SUSP;
- p->rfd_last->last = 0; /* delete RU_SUSP */
- p->rfd_last = p->rfd_top;
- p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
- }
-}
-
-/**********************************************************
- * handle 'Receiver went not ready'.
- */
-
-static void elmc_rnr_int(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
-
- dev->stats.rx_errors++;
-
- WAIT_4_SCB_CMD(); /* wait for the last cmd */
- p->scb->cmd = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
- elmc_attn586();
- WAIT_4_SCB_CMD(); /* wait for accept cmd. */
-
- alloc_rfa(dev, (char *) p->rfd_first);
- startrecv586(dev); /* restart RU */
-
- pr_warning("%s: Receive-Unit restarted. Status: %04x\n", dev->name, p->scb->status);
-
-}
-
-/**********************************************************
- * handle xmit - interrupt
- */
-
-static void elmc_xmt_int(struct net_device *dev)
-{
- int status;
- struct priv *p = netdev_priv(dev);
-
- status = p->xmit_cmds[p->xmit_last]->cmd_status;
- if (!(status & STAT_COMPL)) {
- pr_warning("%s: strange .. xmit-int without a 'COMPLETE'\n", dev->name);
- }
- if (status & STAT_OK) {
- dev->stats.tx_packets++;
- dev->stats.collisions += (status & TCMD_MAXCOLLMASK);
- } else {
- dev->stats.tx_errors++;
- if (status & TCMD_LATECOLL) {
- pr_warning("%s: late collision detected.\n", dev->name);
- dev->stats.collisions++;
- } else if (status & TCMD_NOCARRIER) {
- dev->stats.tx_carrier_errors++;
- pr_warning("%s: no carrier detected.\n", dev->name);
- } else if (status & TCMD_LOSTCTS) {
- pr_warning("%s: loss of CTS detected.\n", dev->name);
- } else if (status & TCMD_UNDERRUN) {
- dev->stats.tx_fifo_errors++;
- pr_warning("%s: DMA underrun detected.\n", dev->name);
- } else if (status & TCMD_MAXCOLL) {
- pr_warning("%s: Max. collisions exceeded.\n", dev->name);
- dev->stats.collisions += 16;
- }
- }
-
-#if (NUM_XMIT_BUFFS != 1)
- if ((++p->xmit_last) == NUM_XMIT_BUFFS) {
- p->xmit_last = 0;
- }
-#endif
-
- netif_wake_queue(dev);
-}
-
-/***********************************************************
- * (re)start the receiver
- */
-
-static void startrecv586(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
-
- p->scb->rfa_offset = make16(p->rfd_first);
- p->scb->cmd = RUC_START;
- elmc_attn586(); /* start cmd. */
- WAIT_4_SCB_CMD(); /* wait for accept cmd. (no timeout!!) */
-}
-
-/******************************************************
- * timeout
- */
-
-static void elmc_timeout(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
- /* COMMAND-UNIT active? */
- if (p->scb->status & CU_ACTIVE) {
- pr_debug("%s: strange ... timeout with CU active?!?\n", dev->name);
- pr_debug("%s: X0: %04x N0: %04x N1: %04x %d\n", dev->name,
- (int)p->xmit_cmds[0]->cmd_status,
- (int)p->nop_cmds[0]->cmd_status,
- (int)p->nop_cmds[1]->cmd_status, (int)p->nop_point);
- p->scb->cmd = CUC_ABORT;
- elmc_attn586();
- WAIT_4_SCB_CMD();
- p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
- p->scb->cmd = CUC_START;
- elmc_attn586();
- WAIT_4_SCB_CMD();
- netif_wake_queue(dev);
- } else {
- pr_debug("%s: xmitter timed out, try to restart! stat: %04x\n",
- dev->name, p->scb->status);
- pr_debug("%s: command-stats: %04x %04x\n", dev->name,
- p->xmit_cmds[0]->cmd_status, p->xmit_cmds[1]->cmd_status);
- elmc_close(dev);
- elmc_open(dev);
- }
-}
-
-/******************************************************
- * send frame
- */
-
-static netdev_tx_t elmc_send_packet(struct sk_buff *skb, struct net_device *dev)
-{
- int len;
- int i;
-#ifndef NO_NOPCOMMANDS
- int next_nop;
-#endif
- struct priv *p = netdev_priv(dev);
-
- netif_stop_queue(dev);
-
- len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
-
- if (len != skb->len)
- memset((char *) p->xmit_cbuffs[p->xmit_count], 0, ETH_ZLEN);
- skb_copy_from_linear_data(skb, (char *) p->xmit_cbuffs[p->xmit_count], skb->len);
-
-#if (NUM_XMIT_BUFFS == 1)
-#ifdef NO_NOPCOMMANDS
- p->xmit_buffs[0]->size = TBD_LAST | len;
- for (i = 0; i < 16; i++) {
- p->scb->cbl_offset = make16(p->xmit_cmds[0]);
- p->scb->cmd = CUC_START;
- p->xmit_cmds[0]->cmd_status = 0;
- elmc_attn586();
- if (!i) {
- dev_kfree_skb(skb);
- }
- WAIT_4_SCB_CMD();
- if ((p->scb->status & CU_ACTIVE)) { /* test it, because CU sometimes doesn't start immediately */
- break;
- }
- if (p->xmit_cmds[0]->cmd_status) {
- break;
- }
- if (i == 15) {
- pr_warning("%s: Can't start transmit-command.\n", dev->name);
- }
- }
-#else
- next_nop = (p->nop_point + 1) & 0x1;
- p->xmit_buffs[0]->size = TBD_LAST | len;
-
- p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link
- = make16((p->nop_cmds[next_nop]));
- p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
-
- p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
- p->nop_point = next_nop;
- dev_kfree_skb(skb);
-#endif
-#else
- p->xmit_buffs[p->xmit_count]->size = TBD_LAST | len;
- if ((next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS) {
- next_nop = 0;
- }
- p->xmit_cmds[p->xmit_count]->cmd_status = 0;
- p->xmit_cmds[p->xmit_count]->cmd_link = p->nop_cmds[next_nop]->cmd_link
- = make16((p->nop_cmds[next_nop]));
- p->nop_cmds[next_nop]->cmd_status = 0;
- p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
- p->xmit_count = next_nop;
- if (p->xmit_count != p->xmit_last)
- netif_wake_queue(dev);
- dev_kfree_skb(skb);
-#endif
- return NETDEV_TX_OK;
-}
-
-/*******************************************
- * Someone wanna have the statistics
- */
-
-static struct net_device_stats *elmc_get_stats(struct net_device *dev)
-{
- struct priv *p = netdev_priv(dev);
- unsigned short crc, aln, rsc, ovrn;
-
- crc = p->scb->crc_errs; /* get error-statistic from the ni82586 */
- p->scb->crc_errs -= crc;
- aln = p->scb->aln_errs;
- p->scb->aln_errs -= aln;
- rsc = p->scb->rsc_errs;
- p->scb->rsc_errs -= rsc;
- ovrn = p->scb->ovrn_errs;
- p->scb->ovrn_errs -= ovrn;
-
- dev->stats.rx_crc_errors += crc;
- dev->stats.rx_fifo_errors += ovrn;
- dev->stats.rx_frame_errors += aln;
- dev->stats.rx_dropped += rsc;
-
- return &dev->stats;
-}
-
-/********************************************************
- * Set MC list ..
- */
-
-#ifdef ELMC_MULTICAST
-static void set_multicast_list(struct net_device *dev)
-{
- if (!dev->start) {
- /* without a running interface, promiscuous doesn't work */
- return;
- }
- dev->start = 0;
- alloc586(dev);
- init586(dev);
- startrecv586(dev);
- dev->start = 1;
-}
-#endif
-
-static void netdev_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- sprintf(info->bus_info, "MCA 0x%lx", dev->base_addr);
-}
-
-static const struct ethtool_ops netdev_ethtool_ops = {
- .get_drvinfo = netdev_get_drvinfo,
-};
-
-#ifdef MODULE
-
-/* Increase if needed ;) */
-#define MAX_3C523_CARDS 4
-
-static struct net_device *dev_elmc[MAX_3C523_CARDS];
-static int irq[MAX_3C523_CARDS];
-static int io[MAX_3C523_CARDS];
-module_param_array(irq, int, NULL, 0);
-module_param_array(io, int, NULL, 0);
-MODULE_PARM_DESC(io, "EtherLink/MC I/O base address(es)");
-MODULE_PARM_DESC(irq, "EtherLink/MC IRQ number(s)");
-MODULE_LICENSE("GPL");
-
-int __init init_module(void)
-{
- int this_dev,found = 0;
-
- /* Loop until we either can't find any more cards, or we have MAX_3C523_CARDS */
- for(this_dev=0; this_dev<MAX_3C523_CARDS; this_dev++) {
- struct net_device *dev = alloc_etherdev(sizeof(struct priv));
- if (!dev)
- break;
- dev->irq=irq[this_dev];
- dev->base_addr=io[this_dev];
- if (do_elmc_probe(dev) == 0) {
- dev_elmc[this_dev] = dev;
- found++;
- continue;
- }
- free_netdev(dev);
- if (io[this_dev]==0)
- break;
- pr_warning("3c523.c: No 3c523 card found at io=%#x\n",io[this_dev]);
- }
-
- if(found==0) {
- if (io[0]==0)
- pr_notice("3c523.c: No 3c523 cards found\n");
- return -ENXIO;
- } else return 0;
-}
-
-void __exit cleanup_module(void)
-{
- int this_dev;
- for (this_dev=0; this_dev<MAX_3C523_CARDS; this_dev++) {
- struct net_device *dev = dev_elmc[this_dev];
- if (dev) {
- unregister_netdev(dev);
- cleanup_card(dev);
- free_netdev(dev);
- }
- }
-}
-
-#endif /* MODULE */
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