[deliverable/linux.git] / drivers / net / tokenring / skisa.c

/*
 *  skisa.c: A network driver for SK-NET TMS380-based ISA token ring cards.
 *
 *  Based on tmspci written 1999 by Adam Fritzler
 *  
 *  Written 2000 by Jochen Friedrich
 *  Dedicated to my girlfriend Steffi Bopp
 *
 *  This software may be used and distributed according to the terms
 *  of the GNU General Public License, incorporated herein by reference.
 *
 *  This driver module supports the following cards:
 *	- SysKonnect TR4/16(+) ISA	(SK-4190)
 *
 *  Maintainer(s):
 *    AF        Adam Fritzler           mid@auk.cx
 *    JF	Jochen Friedrich	jochen@scram.de
 *
 *  Modification History:
 *	14-Jan-01	JF	Created
 *	28-Oct-02	JF	Fixed probe of card for static compilation.
 *				Fixed module init to not make hotplug go wild.
 *	09-Nov-02	JF	Fixed early bail out on out of memory
 *				situations if multiple cards are found.
 *				Cleaned up some unnecessary console SPAM.
 *	09-Dec-02	JF	Fixed module reference counting.
 *	02-Jan-03	JF	Renamed to skisa.c
 *
 */
static const char version[] = "skisa.c: v1.03 09/12/2002 by Jochen Friedrich\n";

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/trdevice.h>
#include <linux/platform_device.h>

#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pci.h>
#include <asm/dma.h>

#include "tms380tr.h"

#define SK_ISA_IO_EXTENT 32

/* A zero-terminated list of I/O addresses to be probed. */
static unsigned int portlist[] __initdata = {
	0x0A20, 0x1A20, 0x0B20, 0x1B20, 0x0980, 0x1980, 0x0900, 0x1900,// SK
	0
};

/* A zero-terminated list of IRQs to be probed. 
 * Used again after initial probe for sktr_chipset_init, called from sktr_open.
 */
static const unsigned short irqlist[] = {
	3, 5, 9, 10, 11, 12, 15,
	0
};

/* A zero-terminated list of DMAs to be probed. */
static int dmalist[] __initdata = {
	5, 6, 7,
	0
};

static char isa_cardname[] = "SK NET TR 4/16 ISA\0";
static u64 dma_mask = ISA_MAX_ADDRESS;
static int sk_isa_open(struct net_device *dev);
static void sk_isa_read_eeprom(struct net_device *dev);
static unsigned short sk_isa_setnselout_pins(struct net_device *dev);

static unsigned short sk_isa_sifreadb(struct net_device *dev, unsigned short reg)
{
	return inb(dev->base_addr + reg);
}

static unsigned short sk_isa_sifreadw(struct net_device *dev, unsigned short reg)
{
	return inw(dev->base_addr + reg);
}

static void sk_isa_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
{
	outb(val, dev->base_addr + reg);
}

static void sk_isa_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
{
	outw(val, dev->base_addr + reg);
}


static int __init sk_isa_probe1(struct net_device *dev, int ioaddr)
{
	unsigned char old, chk1, chk2;

	if (!request_region(ioaddr, SK_ISA_IO_EXTENT, isa_cardname))
		return -ENODEV;

	old = inb(ioaddr + SIFADR);	/* Get the old SIFADR value */

	chk1 = 0;	/* Begin with check value 0 */
	do {
		/* Write new SIFADR value */
		outb(chk1, ioaddr + SIFADR);

		/* Read, invert and write */
		chk2 = inb(ioaddr + SIFADD);
		chk2 ^= 0x0FE;
		outb(chk2, ioaddr + SIFADR);

		/* Read, invert and compare */
		chk2 = inb(ioaddr + SIFADD);
		chk2 ^= 0x0FE;

		if(chk1 != chk2) {
			release_region(ioaddr, SK_ISA_IO_EXTENT);
			return -ENODEV;
		}

		chk1 -= 2;
	} while(chk1 != 0);	/* Repeat 128 times (all byte values) */

    	/* Restore the SIFADR value */
	outb(old, ioaddr + SIFADR);

	dev->base_addr = ioaddr;
	return 0;
}

static int __init setup_card(struct net_device *dev, struct device *pdev)
{
	struct net_local *tp;
        static int versionprinted;
	const unsigned *port;
	int j, err = 0;

	if (!dev)
		return -ENOMEM;

	SET_MODULE_OWNER(dev);
	if (dev->base_addr)	/* probe specific location */
		err = sk_isa_probe1(dev, dev->base_addr);
	else {
		for (port = portlist; *port; port++) {
			err = sk_isa_probe1(dev, *port);
			if (!err)
				break;
		}
	}
	if (err)
		goto out5;

	/* At this point we have found a valid card. */

	if (versionprinted++ == 0)
		printk(KERN_DEBUG "%s", version);

	err = -EIO;
	pdev->dma_mask = &dma_mask;
	if (tmsdev_init(dev, pdev))
		goto out4;

	dev->base_addr &= ~3; 
		
	sk_isa_read_eeprom(dev);

	printk(KERN_DEBUG "skisa.c:    Ring Station Address: ");
	printk("%2.2x", dev->dev_addr[0]);
	for (j = 1; j < 6; j++)
		printk(":%2.2x", dev->dev_addr[j]);
	printk("\n");
		
	tp = netdev_priv(dev);
	tp->setnselout = sk_isa_setnselout_pins;
		
	tp->sifreadb = sk_isa_sifreadb;
	tp->sifreadw = sk_isa_sifreadw;
	tp->sifwriteb = sk_isa_sifwriteb;
	tp->sifwritew = sk_isa_sifwritew;
	
	memcpy(tp->ProductID, isa_cardname, PROD_ID_SIZE + 1);

	tp->tmspriv = NULL;

	dev->open = sk_isa_open;
	dev->stop = tms380tr_close;

	if (dev->irq == 0)
	{
		for(j = 0; irqlist[j] != 0; j++)
		{
			dev->irq = irqlist[j];
			if (!request_irq(dev->irq, tms380tr_interrupt, 0, 
				isa_cardname, dev))
				break;
                }
		
                if(irqlist[j] == 0)
                {
                        printk(KERN_INFO "skisa.c: AutoSelect no IRQ available\n");
			goto out3;
		}
	}
	else
	{
		for(j = 0; irqlist[j] != 0; j++)
			if (irqlist[j] == dev->irq)
				break;
		if (irqlist[j] == 0)
		{
			printk(KERN_INFO "skisa.c: Illegal IRQ %d specified\n",
				dev->irq);
			goto out3;
		}
		if (request_irq(dev->irq, tms380tr_interrupt, 0, 
			isa_cardname, dev))
		{
                        printk(KERN_INFO "skisa.c: Selected IRQ %d not available\n",
				dev->irq);
			goto out3;
		}
	}

	if (dev->dma == 0)
	{
		for(j = 0; dmalist[j] != 0; j++)
		{
			dev->dma = dmalist[j];
                        if (!request_dma(dev->dma, isa_cardname))
				break;
		}

		if(dmalist[j] == 0)
		{
			printk(KERN_INFO "skisa.c: AutoSelect no DMA available\n");
			goto out2;
		}
	}
	else
	{
		for(j = 0; dmalist[j] != 0; j++)
			if (dmalist[j] == dev->dma)
				break;
		if (dmalist[j] == 0)
		{
                        printk(KERN_INFO "skisa.c: Illegal DMA %d specified\n",
				dev->dma);
			goto out2;
		}
		if (request_dma(dev->dma, isa_cardname))
		{
                        printk(KERN_INFO "skisa.c: Selected DMA %d not available\n",
				dev->dma);
			goto out2;
		}
	}

	err = register_netdev(dev);
	if (err)
		goto out;

	printk(KERN_DEBUG "%s:    IO: %#4lx  IRQ: %d  DMA: %d\n",
	       dev->name, dev->base_addr, dev->irq, dev->dma);

	return 0;
out:
	free_dma(dev->dma);
out2:
	free_irq(dev->irq, dev);
out3:
	tmsdev_term(dev);
out4:
	release_region(dev->base_addr, SK_ISA_IO_EXTENT);
out5:
	return err;
}

/*
 * Reads MAC address from adapter RAM, which should've read it from
 * the onboard ROM.  
 *
 * Calling this on a board that does not support it can be a very
 * dangerous thing.  The Madge board, for instance, will lock your
 * machine hard when this is called.  Luckily, its supported in a
 * separate driver.  --ASF
 */
static void sk_isa_read_eeprom(struct net_device *dev)
{
	int i;
	
	/* Address: 0000:0000 */
	sk_isa_sifwritew(dev, 0, SIFADX);
	sk_isa_sifwritew(dev, 0, SIFADR);	
	
	/* Read six byte MAC address data */
	dev->addr_len = 6;
	for(i = 0; i < 6; i++)
		dev->dev_addr[i] = sk_isa_sifreadw(dev, SIFINC) >> 8;
}

unsigned short sk_isa_setnselout_pins(struct net_device *dev)
{
	return 0;
}

static int sk_isa_open(struct net_device *dev)
{  
	struct net_local *tp = netdev_priv(dev);
	unsigned short val = 0;
	unsigned short oldval;
	int i;

	val = 0;
	for(i = 0; irqlist[i] != 0; i++)
	{
		if(irqlist[i] == dev->irq)
			break;
	}

	val |= CYCLE_TIME << 2;
	val |= i << 4;
	i = dev->dma - 5;
	val |= i;
	if(tp->DataRate == SPEED_4)
		val |= LINE_SPEED_BIT;
	else
		val &= ~LINE_SPEED_BIT;
	oldval = sk_isa_sifreadb(dev, POSREG);
	/* Leave cycle bits alone */
	oldval |= 0xf3;
	val &= oldval;
	sk_isa_sifwriteb(dev, val, POSREG);

	return tms380tr_open(dev);
}

#define ISATR_MAX_ADAPTERS 3

static int io[ISATR_MAX_ADAPTERS];
static int irq[ISATR_MAX_ADAPTERS];
static int dma[ISATR_MAX_ADAPTERS];

MODULE_LICENSE("GPL");

module_param_array(io, int, NULL, 0);
module_param_array(irq, int, NULL, 0);
module_param_array(dma, int, NULL, 0);

static struct platform_device *sk_isa_dev[ISATR_MAX_ADAPTERS];

static struct device_driver sk_isa_driver = {
	.name		= "skisa",
	.bus		= &platform_bus_type,
};

static int __init sk_isa_init(void)
{
	struct net_device *dev;
	struct platform_device *pdev;
	int i, num = 0, err = 0;

	err = driver_register(&sk_isa_driver);
	if (err)
		return err;

	for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
		dev = alloc_trdev(sizeof(struct net_local));
		if (!dev)
			continue;

		dev->base_addr = io[i];
		dev->irq = irq[i];
		dev->dma = dma[i];
		pdev = platform_device_register_simple("skisa",
			i, NULL, 0);
		err = setup_card(dev, &pdev->dev);
		if (!err) {
			sk_isa_dev[i] = pdev;
			dev_set_drvdata(&sk_isa_dev[i]->dev, dev);
			++num;
		} else {
			platform_device_unregister(pdev);
			free_netdev(dev);
		}
	}

	printk(KERN_NOTICE "skisa.c: %d cards found.\n", num);
	/* Probe for cards. */
	if (num == 0) {
		printk(KERN_NOTICE "skisa.c: No cards found.\n");
		return (-ENODEV);
	}
	return (0);
}

static void __exit sk_isa_cleanup(void)
{
	struct net_device *dev;
	int i;

	for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
		struct platform_device *pdev = sk_isa_dev[i];

		if (!pdev)
			continue;
		dev = dev_get_drvdata(&pdev->dev);
		unregister_netdev(dev);
		release_region(dev->base_addr, SK_ISA_IO_EXTENT);
		free_irq(dev->irq, dev);
		free_dma(dev->dma);
		tmsdev_term(dev);
		free_netdev(dev);
		dev_set_drvdata(&pdev->dev, NULL);
		platform_device_unregister(pdev);
	}
	driver_unregister(&sk_isa_driver);
}

module_init(sk_isa_init);
module_exit(sk_isa_cleanup);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* skisa.c: A network driver for SK-NET TMS380-based ISA token ring cards.
	3	*
	4	* Based on tmspci written 1999 by Adam Fritzler
	5	*
	6	* Written 2000 by Jochen Friedrich
	7	* Dedicated to my girlfriend Steffi Bopp
	8	*
	9	* This software may be used and distributed according to the terms
	10	* of the GNU General Public License, incorporated herein by reference.
	11	*
	12	* This driver module supports the following cards:
	13	* - SysKonnect TR4/16(+) ISA (SK-4190)
	14	*
	15	* Maintainer(s):
	16	* AF Adam Fritzler mid@auk.cx
	17	* JF Jochen Friedrich jochen@scram.de
	18	*
	19	* Modification History:
	20	* 14-Jan-01 JF Created
	21	* 28-Oct-02 JF Fixed probe of card for static compilation.
	22	* Fixed module init to not make hotplug go wild.
	23	* 09-Nov-02 JF Fixed early bail out on out of memory
	24	* situations if multiple cards are found.
	25	* Cleaned up some unnecessary console SPAM.
	26	* 09-Dec-02 JF Fixed module reference counting.
	27	* 02-Jan-03 JF Renamed to skisa.c
	28	*
	29	*/
	30	static const char version[] = "skisa.c: v1.03 09/12/2002 by Jochen Friedrich\n";
	31
	32	#include <linux/module.h>
	33	#include <linux/kernel.h>
	34	#include <linux/errno.h>
	35	#include <linux/pci.h>
	36	#include <linux/init.h>
	37	#include <linux/netdevice.h>
	38	#include <linux/trdevice.h>
d052d1be	39	#include <linux/platform_device.h>
1da177e4 LT	40
	41	#include <asm/system.h>
	42	#include <asm/io.h>
	43	#include <asm/irq.h>
	44	#include <asm/pci.h>
	45	#include <asm/dma.h>
	46
	47	#include "tms380tr.h"
	48
	49	#define SK_ISA_IO_EXTENT 32
	50
	51	/* A zero-terminated list of I/O addresses to be probed. */
	52	static unsigned int portlist[] __initdata = {
	53	0x0A20, 0x1A20, 0x0B20, 0x1B20, 0x0980, 0x1980, 0x0900, 0x1900,// SK
	54	0
	55	};
	56
	57	/* A zero-terminated list of IRQs to be probed.
	58	* Used again after initial probe for sktr_chipset_init, called from sktr_open.
	59	*/
	60	static const unsigned short irqlist[] = {
	61	3, 5, 9, 10, 11, 12, 15,
	62	0
	63	};
	64
	65	/* A zero-terminated list of DMAs to be probed. */
	66	static int dmalist[] __initdata = {
	67	5, 6, 7,
	68	0
	69	};
	70
	71	static char isa_cardname[] = "SK NET TR 4/16 ISA\0";
504ff16c	72	static u64 dma_mask = ISA_MAX_ADDRESS;
1da177e4 LT	73	static int sk_isa_open(struct net_device *dev);
	74	static void sk_isa_read_eeprom(struct net_device *dev);
	75	static unsigned short sk_isa_setnselout_pins(struct net_device *dev);
	76
	77	static unsigned short sk_isa_sifreadb(struct net_device *dev, unsigned short reg)
	78	{
	79	return inb(dev->base_addr + reg);
	80	}
	81
	82	static unsigned short sk_isa_sifreadw(struct net_device *dev, unsigned short reg)
	83	{
	84	return inw(dev->base_addr + reg);
	85	}
	86
	87	static void sk_isa_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
	88	{
	89	outb(val, dev->base_addr + reg);
	90	}
	91
	92	static void sk_isa_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
	93	{
	94	outw(val, dev->base_addr + reg);
	95	}
	96
	97
	98	static int __init sk_isa_probe1(struct net_device *dev, int ioaddr)
	99	{
	100	unsigned char old, chk1, chk2;
	101
	102	if (!request_region(ioaddr, SK_ISA_IO_EXTENT, isa_cardname))
	103	return -ENODEV;
	104
	105	old = inb(ioaddr + SIFADR); /* Get the old SIFADR value */
	106
	107	chk1 = 0; /* Begin with check value 0 */
	108	do {
	109	/* Write new SIFADR value */
	110	outb(chk1, ioaddr + SIFADR);
	111
	112	/* Read, invert and write */
	113	chk2 = inb(ioaddr + SIFADD);
	114	chk2 ^= 0x0FE;
	115	outb(chk2, ioaddr + SIFADR);
	116
	117	/* Read, invert and compare */
	118	chk2 = inb(ioaddr + SIFADD);
	119	chk2 ^= 0x0FE;
	120
	121	if(chk1 != chk2) {
	122	release_region(ioaddr, SK_ISA_IO_EXTENT);
	123	return -ENODEV;
	124	}
	125
	126	chk1 -= 2;
	127	} while(chk1 != 0); /* Repeat 128 times (all byte values) */
	128
	129	/* Restore the SIFADR value */
	130	outb(old, ioaddr + SIFADR);
	131
	132	dev->base_addr = ioaddr;
	133	return 0;
	134	}
	135
504ff16c	136	static int __init setup_card(struct net_device dev, struct device pdev)
1da177e4 LT	137	{
	138	struct net_local *tp;
	139	static int versionprinted;
	140	const unsigned *port;
	141	int j, err = 0;
	142
	143	if (!dev)
	144	return -ENOMEM;
	145
	146	SET_MODULE_OWNER(dev);
	147	if (dev->base_addr) /* probe specific location */
	148	err = sk_isa_probe1(dev, dev->base_addr);
	149	else {
	150	for (port = portlist; *port; port++) {
	151	err = sk_isa_probe1(dev, *port);
	152	if (!err)
	153	break;
	154	}
	155	}
	156	if (err)
504ff16c	157	goto out5;
1da177e4 LT	158
	159	/* At this point we have found a valid card. */
	160
	161	if (versionprinted++ == 0)
	162	printk(KERN_DEBUG "%s", version);
	163
	164	err = -EIO;
504ff16c	165	pdev->dma_mask = &dma_mask;
84c3ea01	166	if (tmsdev_init(dev, pdev))
1da177e4 LT	167	goto out4;
	168
	169	dev->base_addr &= ~3;
	170
	171	sk_isa_read_eeprom(dev);
	172
504ff16c	173	printk(KERN_DEBUG "skisa.c: Ring Station Address: ");
1da177e4 LT	174	printk("%2.2x", dev->dev_addr[0]);
	175	for (j = 1; j < 6; j++)
	176	printk(":%2.2x", dev->dev_addr[j]);
	177	printk("\n");
	178
	179	tp = netdev_priv(dev);
	180	tp->setnselout = sk_isa_setnselout_pins;
	181
	182	tp->sifreadb = sk_isa_sifreadb;
	183	tp->sifreadw = sk_isa_sifreadw;
	184	tp->sifwriteb = sk_isa_sifwriteb;
	185	tp->sifwritew = sk_isa_sifwritew;
	186
	187	memcpy(tp->ProductID, isa_cardname, PROD_ID_SIZE + 1);
	188
	189	tp->tmspriv = NULL;
	190
	191	dev->open = sk_isa_open;
	192	dev->stop = tms380tr_close;
	193
	194	if (dev->irq == 0)
	195	{
	196	for(j = 0; irqlist[j] != 0; j++)
	197	{
	198	dev->irq = irqlist[j];
	199	if (!request_irq(dev->irq, tms380tr_interrupt, 0,
	200	isa_cardname, dev))
	201	break;
	202	}
	203
	204	if(irqlist[j] == 0)
	205	{
504ff16c	206	printk(KERN_INFO "skisa.c: AutoSelect no IRQ available\n");
1da177e4 LT	207	goto out3;
	208	}
	209	}
	210	else
	211	{
	212	for(j = 0; irqlist[j] != 0; j++)
	213	if (irqlist[j] == dev->irq)
	214	break;
	215	if (irqlist[j] == 0)
	216	{
504ff16c JF	217	printk(KERN_INFO "skisa.c: Illegal IRQ %d specified\n",
504ff16c JF	218	dev->irq);
1da177e4 LT	219	goto out3;
	220	}
	221	if (request_irq(dev->irq, tms380tr_interrupt, 0,
	222	isa_cardname, dev))
	223	{
504ff16c JF	224	printk(KERN_INFO "skisa.c: Selected IRQ %d not available\n",
504ff16c JF	225	dev->irq);
1da177e4 LT	226	goto out3;
	227	}
	228	}
	229
	230	if (dev->dma == 0)
	231	{
	232	for(j = 0; dmalist[j] != 0; j++)
	233	{
	234	dev->dma = dmalist[j];
	235	if (!request_dma(dev->dma, isa_cardname))
	236	break;
	237	}
	238
	239	if(dmalist[j] == 0)
	240	{
504ff16c	241	printk(KERN_INFO "skisa.c: AutoSelect no DMA available\n");
1da177e4 LT	242	goto out2;
	243	}
	244	}
	245	else
	246	{
	247	for(j = 0; dmalist[j] != 0; j++)
	248	if (dmalist[j] == dev->dma)
	249	break;
	250	if (dmalist[j] == 0)
	251	{
504ff16c JF	252	printk(KERN_INFO "skisa.c: Illegal DMA %d specified\n",
504ff16c JF	253	dev->dma);
1da177e4 LT	254	goto out2;
	255	}
	256	if (request_dma(dev->dma, isa_cardname))
	257	{
504ff16c JF	258	printk(KERN_INFO "skisa.c: Selected DMA %d not available\n",
504ff16c JF	259	dev->dma);
1da177e4 LT	260	goto out2;
	261	}
	262	}
	263
1da177e4 LT	264	err = register_netdev(dev);
	265	if (err)
	266	goto out;
	267
504ff16c JF	268	printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n",
	269	dev->name, dev->base_addr, dev->irq, dev->dma);
	270
1da177e4 LT	271	return 0;
	272	out:
	273	free_dma(dev->dma);
	274	out2:
	275	free_irq(dev->irq, dev);
	276	out3:
	277	tmsdev_term(dev);
	278	out4:
504ff16c JF	279	release_region(dev->base_addr, SK_ISA_IO_EXTENT);
504ff16c JF	280	out5:
1da177e4 LT	281	return err;
	282	}
	283
1da177e4 LT	284	/*
	285	* Reads MAC address from adapter RAM, which should've read it from
	286	* the onboard ROM.
	287	*
	288	* Calling this on a board that does not support it can be a very
	289	* dangerous thing. The Madge board, for instance, will lock your
	290	* machine hard when this is called. Luckily, its supported in a
	291	* separate driver. --ASF
	292	*/
	293	static void sk_isa_read_eeprom(struct net_device *dev)
	294	{
	295	int i;
	296
	297	/* Address: 0000:0000 */
	298	sk_isa_sifwritew(dev, 0, SIFADX);
	299	sk_isa_sifwritew(dev, 0, SIFADR);
	300
	301	/* Read six byte MAC address data */
	302	dev->addr_len = 6;
	303	for(i = 0; i < 6; i++)
	304	dev->dev_addr[i] = sk_isa_sifreadw(dev, SIFINC) >> 8;
	305	}
	306
	307	unsigned short sk_isa_setnselout_pins(struct net_device *dev)
	308	{
	309	return 0;
	310	}
	311
	312	static int sk_isa_open(struct net_device *dev)
	313	{
	314	struct net_local *tp = netdev_priv(dev);
	315	unsigned short val = 0;
	316	unsigned short oldval;
	317	int i;
	318
	319	val = 0;
	320	for(i = 0; irqlist[i] != 0; i++)
	321	{
	322	if(irqlist[i] == dev->irq)
	323	break;
	324	}
	325
	326	val \|= CYCLE_TIME << 2;
	327	val \|= i << 4;
	328	i = dev->dma - 5;
	329	val \|= i;
	330	if(tp->DataRate == SPEED_4)
	331	val \|= LINE_SPEED_BIT;
	332	else
	333	val &= ~LINE_SPEED_BIT;
	334	oldval = sk_isa_sifreadb(dev, POSREG);
	335	/* Leave cycle bits alone */
	336	oldval \|= 0xf3;
	337	val &= oldval;
	338	sk_isa_sifwriteb(dev, val, POSREG);
	339
	340	return tms380tr_open(dev);
	341	}
	342
1da177e4 LT	343	#define ISATR_MAX_ADAPTERS 3
	344
	345	static int io[ISATR_MAX_ADAPTERS];
	346	static int irq[ISATR_MAX_ADAPTERS];
	347	static int dma[ISATR_MAX_ADAPTERS];
	348
	349	MODULE_LICENSE("GPL");
	350
	351	module_param_array(io, int, NULL, 0);
	352	module_param_array(irq, int, NULL, 0);
	353	module_param_array(dma, int, NULL, 0);
	354
504ff16c	355	static struct platform_device *sk_isa_dev[ISATR_MAX_ADAPTERS];
1da177e4	356
504ff16c JF	357	static struct device_driver sk_isa_driver = {
	358	.name = "skisa",
	359	.bus = &platform_bus_type,
	360	};
	361
	362	static int __init sk_isa_init(void)
1da177e4 LT	363	{
1da177e4 LT	364	struct net_device *dev;
504ff16c	365	struct platform_device *pdev;
1da177e4 LT	366	int i, num = 0, err = 0;
1da177e4 LT	367
504ff16c JF	368	err = driver_register(&sk_isa_driver);
	369	if (err)
	370	return err;
	371
1da177e4 LT	372	for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
	373	dev = alloc_trdev(sizeof(struct net_local));
	374	if (!dev)
	375	continue;
	376
	377	dev->base_addr = io[i];
	378	dev->irq = irq[i];
	379	dev->dma = dma[i];
504ff16c JF	380	pdev = platform_device_register_simple("skisa",
	381	i, NULL, 0);
	382	err = setup_card(dev, &pdev->dev);
1da177e4	383	if (!err) {
504ff16c JF	384	sk_isa_dev[i] = pdev;
504ff16c JF	385	dev_set_drvdata(&sk_isa_dev[i]->dev, dev);
1da177e4 LT	386	++num;
1da177e4 LT	387	} else {
504ff16c	388	platform_device_unregister(pdev);
1da177e4 LT	389	free_netdev(dev);
	390	}
	391	}
	392
	393	printk(KERN_NOTICE "skisa.c: %d cards found.\n", num);
	394	/* Probe for cards. */
	395	if (num == 0) {
	396	printk(KERN_NOTICE "skisa.c: No cards found.\n");
	397	return (-ENODEV);
	398	}
	399	return (0);
	400	}
	401
504ff16c	402	static void __exit sk_isa_cleanup(void)
1da177e4	403	{
504ff16c	404	struct net_device *dev;
1da177e4 LT	405	int i;
	406
	407	for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
504ff16c	408	struct platform_device *pdev = sk_isa_dev[i];
1da177e4	409
504ff16c	410	if (!pdev)
1da177e4	411	continue;
504ff16c	412	dev = dev_get_drvdata(&pdev->dev);
1da177e4 LT	413	unregister_netdev(dev);
	414	release_region(dev->base_addr, SK_ISA_IO_EXTENT);
	415	free_irq(dev->irq, dev);
	416	free_dma(dev->dma);
	417	tmsdev_term(dev);
	418	free_netdev(dev);
504ff16c JF	419	dev_set_drvdata(&pdev->dev, NULL);
504ff16c JF	420	platform_device_unregister(pdev);
1da177e4	421	}
504ff16c	422	driver_unregister(&sk_isa_driver);
1da177e4	423	}
1da177e4	424
504ff16c JF	425	module_init(sk_isa_init);
504ff16c JF	426	module_exit(sk_isa_cleanup);