Subject: [PATCH] [RFC] 3c509: convert to isa_driver and pnp_driver

From: Ondrej Zary <[email-masked]>
Date: Thu, 31 Jan 2008 20:12:42 +0100

Hello,
this patch is an (incomplete and probably wrong) attempt to convert 3c509 
driver to isa_driver and pnp_driver model. It works but is not finished. My 
original goal was to make 3c509 resume correctly after hibernation - this 
still does not work (in fact, now it hangs during hibernation - I need to do 
some more debugging). Having udev to load the driver automatically when 3c509 
PnP card is detected would be very nice too (assuming udev can do that for 
PnP cards).

I think that the isa_driver part is mostly OK but don't know about the PnP 
one.

Should I use pnp_driver or pnp_card_driver? 3c509 cards have no subdevices. 
I'm confused about usage of pnp_driver together with word "bios" in ALSA 
drivers - I think that pnp_driver should work with all 3 PnP kinds (isapnp, 
pnpbios, acpipnp).

Is it OK to introduce a limit of 8 3c509 cards? The driver had no explicit 
limit before - but the irq[] module parameter had space for only 8 numbers 
(and xcvr[] had 12?)

--- linux-2.6.24-orig/drivers/net/3c509.c	2008-01-27 19:48:19.000000000 +0100
+++ linux-2.6.24-pentium/drivers/net/3c509.c	2008-01-30 20:44:48.000000000 +0100
@@ -69,10 +69,9 @@
 static int max_interrupt_work = 10;
 
 #include <linux/module.h>
-#ifdef CONFIG_MCA
 #include <linux/mca.h>
-#endif
-#include <linux/isapnp.h>
+#include <linux/isa.h>
+#include <linux/pnp.h>
 #include <linux/string.h>
 #include <linux/interrupt.h>
 #include <linux/errno.h>
@@ -97,20 +96,17 @@
 
 static char version[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " [email-masked]\n";
 
-#if defined(CONFIG_PM) && (defined(CONFIG_MCA) || defined(CONFIG_EISA))
-#define EL3_SUSPEND
-#endif
-
 #ifdef EL3_DEBUG
 static int el3_debug = EL3_DEBUG;
 #else
-static int el3_debug = 2;
+static int el3_debug = 20;
 #endif
 
 /* Used to do a global count of all the cards in the system.  Must be
  * a global variable so that the mca/eisa probe routines can increment
  * it */
 static int el3_cards = 0;
+#define EL3_MAX_CARDS 8
 
 /* To minimize the size of the driver source I only define operating
    constants if they are used several times.  You'll need the manual
@@ -119,7 +115,7 @@
 #define EL3_DATA 0x00
 #define EL3_CMD 0x0e
 #define EL3_STATUS 0x0e
-#define	 EEPROM_READ 0x80
+#define	EEPROM_READ 0x80
 
 #define EL3_IO_EXTENT	16
 
@@ -170,7 +166,6 @@
 
 struct el3_private {
 	struct net_device_stats stats;
-	struct net_device *next_dev;
 	spinlock_t lock;
 	/* skb send-queue */
 	int head, size;
@@ -179,12 +174,29 @@
 		EL3_MCA,
 		EL3_PNP,
 		EL3_EISA,
+		EL3_ISA,
 	} type;						/* type of device */
 	struct device *dev;
 };
 static int id_port __initdata = 0x110;	/* Start with 0x110 to avoid new sound cards.*/
-static struct net_device *el3_root_dev;
+static struct net_device *el3_devs[EL3_MAX_CARDS];
+//static __be16 el3_phys_addr[EL3_MAX_CARDS][3];
+
+static int isa_registered;
+#ifdef CONFIG_PNP
+static int pnp_registered;
+static int nopnp;
+#endif
+#ifdef CONFIG_EISA
+static int eisa_registered;
+#endif
+#ifdef CONFIG_MCA
+static int mca_registered;
+#endif
+
 
+static int __init el3_common_init(struct net_device *dev);
+static void el3_common_remove (struct net_device *dev);
 static ushort id_read_eeprom(int index);
 static ushort read_eeprom(int ioaddr, int index);
 static int el3_open(struct net_device *dev);
@@ -199,23 +211,288 @@
 static void el3_down(struct net_device *dev);
 static void el3_up(struct net_device *dev);
 static const struct ethtool_ops ethtool_ops;
-#ifdef EL3_SUSPEND
+#ifdef CONFIG_PM
 static int el3_suspend(struct device *, pm_message_t);
 static int el3_resume(struct device *);
-#else
-#define el3_suspend NULL
-#define el3_resume NULL
 #endif

 /* generic device remove for all device types */
-#if defined(CONFIG_EISA) || defined(CONFIG_MCA)
+//#if defined(CONFIG_MCA) || defined(CONFIG_EISA)
 static int el3_device_remove (struct device *device);
-#endif
+//#endif
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void el3_poll_controller(struct net_device *dev);
 #endif
 
+#ifdef CONFIG_ISA
+static int __devinit el3_isa_match(struct device *pdev,
+				   unsigned int ndev)
+{
+	struct net_device *dev;
+	struct el3_private *lp;
+	short lrs_state = 0xff, i;
+	int ioaddr, irq, if_port;
+	__be16 phys_addr[3];
+	static int current_tag;
+
+again:
+	/* Select an open I/O location at 0x1*0 to do contention select. */
+	for ( ; id_port < 0x200; id_port += 0x10) {
+		if (!request_region(id_port, 1, "3c509"))
+			continue;
+		outb(0x00, id_port);
+		outb(0xff, id_port);
+		if (inb(id_port) & 0x01){
+			release_region(id_port, 1);
+			break;
+		} else
+			release_region(id_port, 1);
+	}
+	if (id_port >= 0x200) {
+		/* Rare -- do we really need a warning? */
+		printk(" WARNING: No I/O port available for 3c509 activation.\n");
+		return 0;
+	}
+
+	/* Next check for all ISA bus boards by sending the ID sequence to the
+	   ID_PORT.  We find cards past the first by setting the 'current_tag'
+	   on cards as they are found.  Cards with their tag set will not
+	   respond to subsequent ID sequences. */
+
+	outb(0x00, id_port);
+	outb(0x00, id_port);
+	for(i = 0; i < 255; i++) {
+		outb(lrs_state, id_port);
+		lrs_state <<= 1;
+		lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
+	}
+
+	/* For the first probe, clear all board's tag registers. */
+	if (current_tag == 0)
+		outb(0xd0, id_port);
+	else				/* Otherwise kill off already-found boards. */
+		outb(0xd8, id_port);
+
+	if (id_read_eeprom(7) != 0x6d50)
+		return 0;
+
+	/* Read in EEPROM data, which does contention-select.
+	   Only the lowest address board will stay "on-line".
+	   3Com got the byte order backwards. */
+	for (i = 0; i < 3; i++)
+		phys_addr[i] = htons(id_read_eeprom(i));
+
+#ifdef CONFIG_PNP
+	if (!nopnp) {
+		/* The ISA PnP 3c509 cards respond to the ID sequence.
+		   This check is needed in order not to register them twice. */
+		for (i = 0; i < el3_cards; i++) {
+			if (!memcmp(phys_addr, el3_devs[i]->dev_addr, ETH_ALEN))
+			{
+				if (el3_debug > 3)
+					printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
+						phys_addr[0] & 0xff, phys_addr[0] >> 8,
+						phys_addr[1] & 0xff, phys_addr[1] >> 8,
+						phys_addr[2] & 0xff, phys_addr[2] >> 8);
+				/* Set the adaptor tag so that the next card can be found. */
+				outb(0xd0 + ++current_tag, id_port);
+				goto again;
+			}
+		}
+	}
+#endif /* CONFIG_PNP */
+
+	{
+		unsigned int iobase = id_read_eeprom(8);
+		if_port = iobase >> 14;
+		ioaddr = 0x200 + ((iobase & 0x1f) << 4);
+	}
+	irq = id_read_eeprom(9) >> 12;
+
+	dev = alloc_etherdev(sizeof (struct el3_private));
+	if (!dev)
+		return -ENOMEM;
+
+	netdev_boot_setup_check(dev);
+
+	/* Set passed-in IRQ or I/O Addr. */
+	if (dev->irq > 1 && dev->irq < 16)
+			irq = dev->irq;
+
+	if (dev->base_addr) {
+		if (dev->mem_end == 0x3c509 	/* Magic key */
+		    && dev->base_addr >= 0x200  &&  dev->base_addr <= 0x3e0)
+			ioaddr = dev->base_addr & 0x3f0;
+		else if (dev->base_addr != ioaddr) {
+			free_netdev(dev);
+			return 0;
+		}
+	}
+
+	if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) {
+		free_netdev(dev);
+		return 0;
+	}
+
+	/* Set the adaptor tag so that the next card can be found. */
+	outb(0xd0 + ++current_tag, id_port);
+
+	/* Activate the adaptor at the EEPROM location. */
+	outb((ioaddr >> 4) | 0xe0, id_port);
+
+	EL3WINDOW(0);
+	if (inw(ioaddr) != 0x6d50) {
+		free_netdev(dev);
+		return 0;
+	}
+
+	/* Free the interrupt so that some other card can use it. */
+	outw(0x0f00, ioaddr + WN0_IRQ);
+
+
+	memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
+	dev->base_addr = ioaddr;
+	dev->irq = irq;
+	dev->if_port = if_port;
+	lp = netdev_priv(dev);
+	lp->type = EL3_ISA;
+	lp->dev = pdev;
+	dev_set_drvdata(pdev, dev);
+	if (el3_common_init(dev)) {
+		free_netdev(dev);
+		return 0;
+	}
+
+	el3_devs[el3_cards] = dev;
+	el3_cards++;
+	return 1;
+}
+
+static int __devexit el3_isa_remove(struct device *pdev,
+				    unsigned int ndev)
+{
+	el3_device_remove(pdev);
+	dev_set_drvdata(pdev, NULL);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int el3_isa_suspend(struct device *dev, unsigned int n,
+			   pm_message_t state)
+{
+	return el3_suspend(dev_get_drvdata(dev), state);
+}
+
+static int el3_isa_resume(struct device *dev, unsigned int n)
+{
+	return el3_resume(dev_get_drvdata(dev));
+}
+#endif
+
+static struct isa_driver el3_isa_driver = {
+	.match		= el3_isa_match,
+	.remove		= __devexit_p(el3_isa_remove),
+#ifdef CONFIG_PM
+	.suspend	= el3_isa_suspend,
+	.resume		= el3_isa_resume,
+#endif
+	.driver		= {
+		.name	= "3c509"
+	},
+};
+#endif
+
+#ifdef CONFIG_PNP
+static struct pnp_device_id el3_pnp_ids[] = {
+	{ .id = "TCM5090" }, /* 3Com Etherlink III (TP) */
+	{ .id = "TCM5091" }, /* 3Com Etherlink III */
+	{ .id = "TCM5094" }, /* 3Com Etherlink III (combo) */
+	{ .id = "TCM5095" }, /* 3Com Etherlink III (TPO) */
+	{ .id = "TCM5098" }, /* 3Com Etherlink III (TPC) */
+	{ .id = "PNP80f7" }, /* 3Com Etherlink III compatible */
+	{ .id = "PNP80f8" }, /* 3Com Etherlink III compatible */
+	{ .id = "" }
+};
+MODULE_DEVICE_TABLE(pnp, el3_pnp_ids);
+
+static int __devinit el3_pnp_probe(struct pnp_dev *pdev,
+				    const struct pnp_device_id *id)
+{
+	struct el3_private *lp;
+	short i;
+	int ioaddr, irq, if_port;
+	u16 phys_addr[3];
+	struct net_device *dev = NULL;
+	int err;
+
+	ioaddr = pnp_port_start(pdev, 0);
+	if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP"))
+		return -EBUSY;
+	irq = pnp_irq(pdev, 0);
+	EL3WINDOW(0);
+	for (i = 0; i < 3; i++)
+		phys_addr[i] = htons(read_eeprom(ioaddr, i));
+	if_port = read_eeprom(ioaddr, 8) >> 14;
+	dev = alloc_etherdev(sizeof (struct el3_private));
+	if (!dev) {
+		release_region(ioaddr, EL3_IO_EXTENT);
+		return -ENOMEM;
+	}
+	SET_NETDEV_DEV(dev, &pdev->dev);
+	netdev_boot_setup_check(dev);
+
+	memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
+	dev->base_addr = ioaddr;
+	dev->irq = irq;
+	dev->if_port = if_port;
+	lp = netdev_priv(dev);
+	lp->dev = &pdev->dev;
+	lp->type = EL3_PNP;
+	pnp_set_drvdata (pdev, dev);
+	err = el3_common_init(dev);
+
+	if (err) {
+		pnp_set_drvdata (pdev, NULL);
+		free_netdev(dev);
+		return err;
+	}
+
+	el3_devs[el3_cards] = dev;
+	el3_cards++;
+	return 0;
+}
+
+static void __devexit el3_pnp_remove(struct pnp_dev *pdev)
+{
+	el3_common_remove(pnp_get_drvdata(pdev));
+	pnp_set_drvdata(pdev, NULL);
+}
+
+#ifdef CONFIG_PM
+static int el3_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
+{
+	return el3_suspend(pnp_get_drvdata(pdev), state);
+}
+
+static int el3_pnp_resume(struct pnp_dev *pdev)
+{
+	return el3_resume(pnp_get_drvdata(pdev));
+}
+#endif
+
+static struct pnp_driver el3_pnp_driver = {
+	.name		= "3c509",
+	.id_table	= el3_pnp_ids,
+	.probe		= el3_pnp_probe,
+	.remove		= __devexit_p(el3_pnp_remove),
+#ifdef CONFIG_PM
+	.suspend	= el3_pnp_suspend,
+	.resume		= el3_pnp_resume,
+#endif
+};
+#endif /* CONFIG_PNP */
+
 #ifdef CONFIG_EISA
 static struct eisa_device_id el3_eisa_ids[] = {
 		{ "TCM5092" },
@@ -273,43 +550,6 @@
 };
 #endif /* CONFIG_MCA */
 
-#if defined(__ISAPNP__)
-static struct isapnp_device_id el3_isapnp_adapters[] __initdata = {
-	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
-		ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090),
-		(long) "3Com Etherlink III (TP)" },
-	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
-		ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091),
-		(long) "3Com Etherlink III" },
-	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
-		ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094),
-		(long) "3Com Etherlink III (combo)" },
-	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
-		ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095),
-		(long) "3Com Etherlink III (TPO)" },
-	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
-		ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098),
-		(long) "3Com Etherlink III (TPC)" },
-	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
-		ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7),
-		(long) "3Com Etherlink III compatible" },
-	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
-		ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8),
-		(long) "3Com Etherlink III compatible" },
-	{ }	/* terminate list */
-};
-
-static __be16 el3_isapnp_phys_addr[8][3];
-static int nopnp;
-#endif /* __ISAPNP__ */
-
-/* With the driver model introduction for EISA devices, both init
- * and cleanup have been split :
- * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove
- * - MCA/ISA still use el3_probe
- *
- * Both call el3_common_init/el3_common_remove. */
-
 static int __init el3_common_init(struct net_device *dev)
 {
 	struct el3_private *lp = netdev_priv(dev);
@@ -373,218 +613,6 @@
 	free_netdev (dev);
 }
 
-static int __init el3_probe(int card_idx)
-{
-	struct net_device *dev;
-	struct el3_private *lp;
-	short lrs_state = 0xff, i;
-	int ioaddr, irq, if_port;
-	__be16 phys_addr[3];
-	static int current_tag;
-	int err = -ENODEV;
-#if defined(__ISAPNP__)
-	static int pnp_cards;
-	struct pnp_dev *idev = NULL;
-	int pnp_found = 0;
-
-	if (nopnp == 1)
-		goto no_pnp;
-
-	for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) {
-		int j;
-		while ((idev = pnp_find_dev(NULL,
-					    el3_isapnp_adapters[i].vendor,
-					    el3_isapnp_adapters[i].function,
-					    idev))) {
-			if (pnp_device_attach(idev) < 0)
-				continue;
-			if (pnp_activate_dev(idev) < 0) {
-__again:
-				pnp_device_detach(idev);
-				continue;
-			}
-			if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
-				goto __again;
-			ioaddr = pnp_port_start(idev, 0);
-			if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) {
-				pnp_device_detach(idev);
-				return -EBUSY;
-			}
-			irq = pnp_irq(idev, 0);
-			if (el3_debug > 3)
-				printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n",
-					(char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq);
-			EL3WINDOW(0);
-			for (j = 0; j < 3; j++)
-				el3_isapnp_phys_addr[pnp_cards][j] =
-					phys_addr[j] =
-						htons(read_eeprom(ioaddr, j));
-			if_port = read_eeprom(ioaddr, 8) >> 14;
-			dev = alloc_etherdev(sizeof (struct el3_private));
-			if (!dev) {
-					release_region(ioaddr, EL3_IO_EXTENT);
-					pnp_device_detach(idev);
-					return -ENOMEM;
-			}
-
-			SET_NETDEV_DEV(dev, &idev->dev);
-			pnp_cards++;
-
-			netdev_boot_setup_check(dev);
-			pnp_found = 1;
-			goto found;
-		}
-	}
-no_pnp:
-#endif /* __ISAPNP__ */
-
-	/* Select an open I/O location at 0x1*0 to do contention select. */
-	for ( ; id_port < 0x200; id_port += 0x10) {
-		if (!request_region(id_port, 1, "3c509"))
-			continue;
-		outb(0x00, id_port);
-		outb(0xff, id_port);
-		if (inb(id_port) & 0x01){
-			release_region(id_port, 1);
-			break;
-		} else
-			release_region(id_port, 1);
-	}
-	if (id_port >= 0x200) {
-		/* Rare -- do we really need a warning? */
-		printk(" WARNING: No I/O port available for 3c509 activation.\n");
-		return -ENODEV;
-	}
-
-	/* Next check for all ISA bus boards by sending the ID sequence to the
-	   ID_PORT.  We find cards past the first by setting the 'current_tag'
-	   on cards as they are found.  Cards with their tag set will not
-	   respond to subsequent ID sequences. */
-
-	outb(0x00, id_port);
-	outb(0x00, id_port);
-	for(i = 0; i < 255; i++) {
-		outb(lrs_state, id_port);
-		lrs_state <<= 1;
-		lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
-	}
-
-	/* For the first probe, clear all board's tag registers. */
-	if (current_tag == 0)
-		outb(0xd0, id_port);
-	else				/* Otherwise kill off already-found boards. */
-		outb(0xd8, id_port);
-
-	if (id_read_eeprom(7) != 0x6d50) {
-		return -ENODEV;
-	}
-
-	/* Read in EEPROM data, which does contention-select.
-	   Only the lowest address board will stay "on-line".
-	   3Com got the byte order backwards. */
-	for (i = 0; i < 3; i++) {
-		phys_addr[i] = htons(id_read_eeprom(i));
-	}
-
-#if defined(__ISAPNP__)
-	if (nopnp == 0) {
-		/* The ISA PnP 3c509 cards respond to the ID sequence.
-		   This check is needed in order not to register them twice. */
-		for (i = 0; i < pnp_cards; i++) {
-			if (phys_addr[0] == el3_isapnp_phys_addr[i][0] &&
-			    phys_addr[1] == el3_isapnp_phys_addr[i][1] &&
-			    phys_addr[2] == el3_isapnp_phys_addr[i][2])
-			{
-				if (el3_debug > 3)
-					printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
-						phys_addr[0] & 0xff, phys_addr[0] >> 8,
-						phys_addr[1] & 0xff, phys_addr[1] >> 8,
-						phys_addr[2] & 0xff, phys_addr[2] >> 8);
-				/* Set the adaptor tag so that the next card can be found. */
-				outb(0xd0 + ++current_tag, id_port);
-				goto no_pnp;
-			}
-		}
-	}
-#endif /* __ISAPNP__ */
-
-	{
-		unsigned int iobase = id_read_eeprom(8);
-		if_port = iobase >> 14;
-		ioaddr = 0x200 + ((iobase & 0x1f) << 4);
-	}
-	irq = id_read_eeprom(9) >> 12;
-
-	dev = alloc_etherdev(sizeof (struct el3_private));
-	if (!dev)
-		return -ENOMEM;
-
-	netdev_boot_setup_check(dev);
-
-	/* Set passed-in IRQ or I/O Addr. */
-	if (dev->irq > 1  &&  dev->irq < 16)
-			irq = dev->irq;
-
-	if (dev->base_addr) {
-		if (dev->mem_end == 0x3c509 	/* Magic key */
-		    && dev->base_addr >= 0x200  &&  dev->base_addr <= 0x3e0)
-			ioaddr = dev->base_addr & 0x3f0;
-		else if (dev->base_addr != ioaddr)
-			goto out;
-	}
-
-	if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) {
-		err = -EBUSY;
-		goto out;
-	}
-
-	/* Set the adaptor tag so that the next card can be found. */
-	outb(0xd0 + ++current_tag, id_port);
-
-	/* Activate the adaptor at the EEPROM location. */
-	outb((ioaddr >> 4) | 0xe0, id_port);
-
-	EL3WINDOW(0);
-	if (inw(ioaddr) != 0x6d50)
-		goto out1;
-
-	/* Free the interrupt so that some other card can use it. */
-	outw(0x0f00, ioaddr + WN0_IRQ);
-
-#if defined(__ISAPNP__)
- found:							/* PNP jumps here... */
-#endif /* __ISAPNP__ */
-
-	memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
-	dev->base_addr = ioaddr;
-	dev->irq = irq;
-	dev->if_port = if_port;
-	lp = netdev_priv(dev);
-#if defined(__ISAPNP__)
-	lp->dev = &idev->dev;
-	if (pnp_found)
-		lp->type = EL3_PNP;
-#endif
-	err = el3_common_init(dev);
-
-	if (err)
-		goto out1;
-
-	el3_cards++;
-	lp->next_dev = el3_root_dev;
-	el3_root_dev = dev;
-	return 0;
-
-out1:
-#if defined(__ISAPNP__)
-	if (idev)
-		pnp_device_detach(idev);
-#endif
-out:
-	free_netdev(dev);
-	return err;
-}
-
 #ifdef CONFIG_MCA
 static int __init el3_mca_probe(struct device *device)
 {
@@ -721,10 +749,10 @@
 }
 #endif
 
-#if defined(CONFIG_EISA) || defined(CONFIG_MCA)
 /* This remove works for all device types.
  *
  * The net dev must be stored in the driver_data field */
+//#if defined(CONFIG_MCA) || defined(CONFIG_EISA)
 static int __devexit el3_device_remove (struct device *device)
 {
 	struct net_device *dev;
@@ -734,7 +762,7 @@
 	el3_common_remove (dev);
 	return 0;
 }
-#endif
+//#endif
 
 /* Read a word from the EEPROM using the regular EEPROM access register.
    Assume that we are in register window zero.
@@ -1450,7 +1478,7 @@
 }
 
 /* Power Management support functions */
-#ifdef EL3_SUSPEND
+#ifdef CONFIG_PM
 
 static int
 el3_suspend(struct device *pdev, pm_message_t state)
@@ -1500,12 +1528,12 @@
 	return 0;
 }
 
-#endif /* EL3_SUSPEND */
+#endif /* CONFIG_PM */
 
 /* Parameters that may be passed into the module. */
 static int debug = -1;
 static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
+static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1};
 
 module_param(debug,int, 0);
 module_param_array(irq, int, NULL, 0);
@@ -1515,61 +1543,87 @@
 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
 MODULE_PARM_DESC(xcvr,"transceiver(s) (0=internal, 1=external)");
 MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt");
-#if defined(__ISAPNP__)
+#ifdef CONFIG_PNP
 module_param(nopnp, int, 0);
 MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)");
-MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters);
-#endif	/* __ISAPNP__ */
-MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver");
+#endif	/* CONFIG_PNP */
+MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ethernet driver");
 MODULE_LICENSE("GPL");
 
 static int __init el3_init_module(void)
 {
 	int ret = 0;
-	el3_cards = 0;
 
 	if (debug >= 0)
 		el3_debug = debug;
 
-	el3_root_dev = NULL;
-	while (el3_probe(el3_cards) == 0) {
-		if (irq[el3_cards] > 1)
-			el3_root_dev->irq = irq[el3_cards];
-		if (xcvr[el3_cards] >= 0)
-			el3_root_dev->if_port = xcvr[el3_cards];
-		el3_cards++;
+//	while (el3_probe(el3_cards) == 0) {
+//		if (irq[el3_cards] > 1)
+//			el3_root_dev->irq = irq[el3_cards];
+//		if (xcvr[el3_cards] >= 0)
+//			el3_root_dev->if_port = xcvr[el3_cards];
+//		el3_cards++;
+//	}
+
+#ifdef CONFIG_PNP
+	if (!nopnp) {
+		ret = pnp_register_driver(&el3_pnp_driver);
+		if (!ret)
+			pnp_registered = 1;
 	}
-
+#endif
+	ret = isa_register_driver(&el3_isa_driver, EL3_MAX_CARDS);
+	if (!ret)
+		isa_registered = 1;
 #ifdef CONFIG_EISA
 	ret = eisa_driver_register(&el3_eisa_driver);
+	if (!ret)
+		eisa_registeted = 1;
 #endif
 #ifdef CONFIG_MCA
-	{
-		int err = mca_register_driver(&el3_mca_driver);
-		if (ret == 0)
-			ret = err;
-	}
+	ret = mca_register_driver(&el3_mca_driver);
+	if (!ret)
+		mca_registered = 1;
+#endif
+
+#ifdef CONFIG_PNP
+	if (pnp_registered)
+		ret = 0;
+#endif
+	if (isa_registered)
+		ret = 0;
+#ifdef CONFIG_EISA
+	if (eisa_registered)
+		ret = 0;
 #endif
+#ifdef CONFIG_MCA
+	if (mca_registered)
+		ret = 0;
+#endif
+	printk("el3_cards=%d\n", el3_cards);
 	return ret;
 }
 
 static void __exit el3_cleanup_module(void)
 {
-	struct net_device *next_dev;
-
-	while (el3_root_dev) {
-		struct el3_private *lp = netdev_priv(el3_root_dev);
-
-		next_dev = lp->next_dev;
-		el3_common_remove (el3_root_dev);
-		el3_root_dev = next_dev;
-	}
-
+	int i;
+	
+//	for (i = 0; i < el3_cards; i++)
+//		el3_common_remove(el3_devs[i]);
+
+#ifdef CONFIG_PNP
+	if (pnp_registered)
+		pnp_unregister_driver(&el3_pnp_driver);
+#endif
+	if (isa_registered)
+		isa_unregister_driver(&el3_isa_driver);
 #ifdef CONFIG_EISA
-	eisa_driver_unregister (&el3_eisa_driver);
+	if (eisa_registered)
+		eisa_driver_unregister (&el3_eisa_driver);
 #endif
 #ifdef CONFIG_MCA
-	mca_unregister_driver(&el3_mca_driver);
+	if (mca_registered)
+		mca_unregister_driver(&el3_mca_driver);
 #endif
 }

-- 
Ondrej Zary