[net-next-2.6.git] / drivers / net / tokenring / tmspci.c

/*
 *  tmspci.c: A generic network driver for TMS380-based PCI token ring cards.
 *
 *  Written 1999 by Adam Fritzler
 *
 *  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(+) PCI	(SK-4590)
 *	- SysKonnect TR4/16 PCI		(SK-4591)
 *      - Compaq TR 4/16 PCI
 *      - Thomas-Conrad TC4048 4/16 PCI 
 *      - 3Com 3C339 Token Link Velocity
 *
 *  Maintainer(s):
 *    AF	Adam Fritzler
 *
 *  Modification History:
 *	30-Dec-99	AF	Split off from the tms380tr driver.
 *	22-Jan-00	AF	Updated to use indirect read/writes
 *	23-Nov-00	JG	New PCI API, cleanups
 *
 *  TODO:
 *	1. See if we can use MMIO instead of port accesses
 *
 */

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

#include "tms380tr.h"

static char version[] __devinitdata =
"tmspci.c: v1.02 23/11/2000 by Adam Fritzler\n";

#define TMS_PCI_IO_EXTENT 32

struct card_info {
	unsigned char nselout[2]; /* NSELOUT vals for 4mb([0]) and 16mb([1]) */
	char *name;
};

static struct card_info card_info_table[] = {
	{ {0x03, 0x01}, "Compaq 4/16 TR PCI"},
	{ {0x03, 0x01}, "SK NET TR 4/16 PCI"},
	{ {0x03, 0x01}, "Thomas-Conrad TC4048 PCI 4/16"},
	{ {0x03, 0x01}, "3Com Token Link Velocity"},
};

static DEFINE_PCI_DEVICE_TABLE(tmspci_pci_tbl) = {
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TOKENRING, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
	{ PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_TR, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
	{ PCI_VENDOR_ID_TCONRAD, PCI_DEVICE_ID_TCONRAD_TOKENRING, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
	{ PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C339, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
	{ }			/* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, tmspci_pci_tbl);

MODULE_LICENSE("GPL");

static void tms_pci_read_eeprom(struct net_device *dev);
static unsigned short tms_pci_setnselout_pins(struct net_device *dev);

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

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

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

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

static int __devinit tms_pci_attach(struct pci_dev *pdev, const struct pci_device_id *ent)
{	
	static int versionprinted;
	struct net_device *dev;
	struct net_local *tp;
	int ret;
	unsigned int pci_irq_line;
	unsigned long pci_ioaddr;
	struct card_info *cardinfo = &card_info_table[ent->driver_data];

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

	if (pci_enable_device(pdev))
		return -EIO;

	/* Remove I/O space marker in bit 0. */
	pci_irq_line = pdev->irq;
	pci_ioaddr = pci_resource_start (pdev, 0);

	/* At this point we have found a valid card. */
	dev = alloc_trdev(sizeof(struct net_local));
	if (!dev)
		return -ENOMEM;

	if (!request_region(pci_ioaddr, TMS_PCI_IO_EXTENT, dev->name)) {
		ret = -EBUSY;
		goto err_out_trdev;
	}

	dev->base_addr	= pci_ioaddr;
	dev->irq 	= pci_irq_line;
	dev->dma	= 0;

	dev_info(&pdev->dev, "%s\n", cardinfo->name);
	dev_info(&pdev->dev, "    IO: %#4lx  IRQ: %d\n", dev->base_addr, dev->irq);
		
	tms_pci_read_eeprom(dev);

	dev_info(&pdev->dev, "    Ring Station Address: %pM\n", dev->dev_addr);
		
	ret = tmsdev_init(dev, &pdev->dev);
	if (ret) {
		dev_info(&pdev->dev, "unable to get memory for dev->priv.\n");
		goto err_out_region;
	}

	tp = netdev_priv(dev);
	tp->setnselout = tms_pci_setnselout_pins;
		
	tp->sifreadb = tms_pci_sifreadb;
	tp->sifreadw = tms_pci_sifreadw;
	tp->sifwriteb = tms_pci_sifwriteb;
	tp->sifwritew = tms_pci_sifwritew;
		
	memcpy(tp->ProductID, cardinfo->name, PROD_ID_SIZE + 1);

	tp->tmspriv = cardinfo;

	dev->netdev_ops = &tms380tr_netdev_ops;

	ret = request_irq(pdev->irq, tms380tr_interrupt, IRQF_SHARED,
			  dev->name, dev);
	if (ret)
		goto err_out_tmsdev;

	pci_set_drvdata(pdev, dev);
	SET_NETDEV_DEV(dev, &pdev->dev);

	ret = register_netdev(dev);
	if (ret)
		goto err_out_irq;
	
	return 0;

err_out_irq:
	free_irq(pdev->irq, dev);
err_out_tmsdev:
	pci_set_drvdata(pdev, NULL);
	tmsdev_term(dev);
err_out_region:
	release_region(pci_ioaddr, TMS_PCI_IO_EXTENT);
err_out_trdev:
	free_netdev(dev);
	return ret;
}

/*
 * 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 tms_pci_read_eeprom(struct net_device *dev)
{
	int i;
	
	/* Address: 0000:0000 */
	tms_pci_sifwritew(dev, 0, SIFADX);
	tms_pci_sifwritew(dev, 0, SIFADR);	
	
	/* Read six byte MAC address data */
	dev->addr_len = 6;
	for(i = 0; i < 6; i++)
		dev->dev_addr[i] = tms_pci_sifreadw(dev, SIFINC) >> 8;
}

static unsigned short tms_pci_setnselout_pins(struct net_device *dev)
{
	unsigned short val = 0;
	struct net_local *tp = netdev_priv(dev);
	struct card_info *cardinfo = tp->tmspriv;
  
	if(tp->DataRate == SPEED_4)
		val |= cardinfo->nselout[0];	/* Set 4Mbps */
	else
		val |= cardinfo->nselout[1];	/* Set 16Mbps */
	return val;
}

static void __devexit tms_pci_detach (struct pci_dev *pdev)
{
	struct net_device *dev = pci_get_drvdata(pdev);

	BUG_ON(!dev);
	unregister_netdev(dev);
	release_region(dev->base_addr, TMS_PCI_IO_EXTENT);
	free_irq(dev->irq, dev);
	tmsdev_term(dev);
	free_netdev(dev);
	pci_set_drvdata(pdev, NULL);
}

static struct pci_driver tms_pci_driver = {
	.name		= "tmspci",
	.id_table	= tmspci_pci_tbl,
	.probe		= tms_pci_attach,
	.remove		= __devexit_p(tms_pci_detach),
};

static int __init tms_pci_init (void)
{
	return pci_register_driver(&tms_pci_driver);
}

static void __exit tms_pci_rmmod (void)
{
	pci_unregister_driver (&tms_pci_driver);
}

module_init(tms_pci_init);
module_exit(tms_pci_rmmod);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* tmspci.c: A generic network driver for TMS380-based PCI token ring cards.
	3	*
	4	* Written 1999 by Adam Fritzler
	5	*
	6	* This software may be used and distributed according to the terms
	7	* of the GNU General Public License, incorporated herein by reference.
	8	*
	9	* This driver module supports the following cards:
	10	* - SysKonnect TR4/16(+) PCI (SK-4590)
	11	* - SysKonnect TR4/16 PCI (SK-4591)
	12	* - Compaq TR 4/16 PCI
	13	* - Thomas-Conrad TC4048 4/16 PCI
	14	* - 3Com 3C339 Token Link Velocity
	15	*
	16	* Maintainer(s):
726a6459	17	* AF Adam Fritzler
1da177e4 LT	18	*
	19	* Modification History:
	20	* 30-Dec-99 AF Split off from the tms380tr driver.
	21	* 22-Jan-00 AF Updated to use indirect read/writes
	22	* 23-Nov-00 JG New PCI API, cleanups
	23	*
	24	* TODO:
	25	* 1. See if we can use MMIO instead of port accesses
	26	*
	27	*/
	28
	29	#include <linux/module.h>
	30	#include <linux/kernel.h>
	31	#include <linux/errno.h>
	32	#include <linux/pci.h>
	33	#include <linux/init.h>
	34	#include <linux/netdevice.h>
	35	#include <linux/trdevice.h>
	36
	37	#include <asm/system.h>
	38	#include <asm/io.h>
	39	#include <asm/irq.h>
	40
	41	#include "tms380tr.h"
	42
	43	static char version[] __devinitdata =
	44	"tmspci.c: v1.02 23/11/2000 by Adam Fritzler\n";
	45
	46	#define TMS_PCI_IO_EXTENT 32
	47
	48	struct card_info {
	49	unsigned char nselout[2]; /* NSELOUT vals for 4mb([0]) and 16mb([1]) */
	50	char *name;
	51	};
	52
	53	static struct card_info card_info_table[] = {
	54	{ {0x03, 0x01}, "Compaq 4/16 TR PCI"},
	55	{ {0x03, 0x01}, "SK NET TR 4/16 PCI"},
	56	{ {0x03, 0x01}, "Thomas-Conrad TC4048 PCI 4/16"},
	57	{ {0x03, 0x01}, "3Com Token Link Velocity"},
	58	};
	59
a3aa1884	60	static DEFINE_PCI_DEVICE_TABLE(tmspci_pci_tbl) = {
1da177e4 LT	61	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TOKENRING, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
	62	{ PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_TR, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
	63	{ PCI_VENDOR_ID_TCONRAD, PCI_DEVICE_ID_TCONRAD_TOKENRING, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
	64	{ PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C339, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
	65	{ } /* Terminating entry */
	66	};
	67	MODULE_DEVICE_TABLE(pci, tmspci_pci_tbl);
	68
	69	MODULE_LICENSE("GPL");
	70
	71	static void tms_pci_read_eeprom(struct net_device *dev);
	72	static unsigned short tms_pci_setnselout_pins(struct net_device *dev);
	73
	74	static unsigned short tms_pci_sifreadb(struct net_device *dev, unsigned short reg)
	75	{
	76	return inb(dev->base_addr + reg);
	77	}
	78
	79	static unsigned short tms_pci_sifreadw(struct net_device *dev, unsigned short reg)
	80	{
	81	return inw(dev->base_addr + reg);
	82	}
	83
	84	static void tms_pci_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
	85	{
	86	outb(val, dev->base_addr + reg);
	87	}
	88
	89	static void tms_pci_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
	90	{
	91	outw(val, dev->base_addr + reg);
	92	}
	93
	94	static int __devinit tms_pci_attach(struct pci_dev pdev, const struct pci_device_id ent)
	95	{
	96	static int versionprinted;
	97	struct net_device *dev;
	98	struct net_local *tp;
0795af57	99	int ret;
1da177e4 LT	100	unsigned int pci_irq_line;
	101	unsigned long pci_ioaddr;
	102	struct card_info *cardinfo = &card_info_table[ent->driver_data];
504ff16c	103
1da177e4 LT	104	if (versionprinted++ == 0)
	105	printk("%s", version);
	106
	107	if (pci_enable_device(pdev))
	108	return -EIO;
	109
	110	/* Remove I/O space marker in bit 0. */
	111	pci_irq_line = pdev->irq;
	112	pci_ioaddr = pci_resource_start (pdev, 0);
	113
	114	/* At this point we have found a valid card. */
	115	dev = alloc_trdev(sizeof(struct net_local));
	116	if (!dev)
	117	return -ENOMEM;
1da177e4 LT	118
	119	if (!request_region(pci_ioaddr, TMS_PCI_IO_EXTENT, dev->name)) {
	120	ret = -EBUSY;
	121	goto err_out_trdev;
	122	}
	123
1da177e4 LT	124	dev->base_addr = pci_ioaddr;
	125	dev->irq = pci_irq_line;
	126	dev->dma = 0;
	127
d9fd1b28 MR	128	dev_info(&pdev->dev, "%s\n", cardinfo->name);
d9fd1b28 MR	129	dev_info(&pdev->dev, " IO: %#4lx IRQ: %d\n", dev->base_addr, dev->irq);
1da177e4 LT	130
	131	tms_pci_read_eeprom(dev);
	132
d9fd1b28	133	dev_info(&pdev->dev, " Ring Station Address: %pM\n", dev->dev_addr);
1da177e4	134
84c3ea01	135	ret = tmsdev_init(dev, &pdev->dev);
1da177e4	136	if (ret) {
d9fd1b28	137	dev_info(&pdev->dev, "unable to get memory for dev->priv.\n");
87786945	138	goto err_out_region;
1da177e4 LT	139	}
1da177e4 LT	140
eda10531	141	tp = netdev_priv(dev);
1da177e4 LT	142	tp->setnselout = tms_pci_setnselout_pins;
	143
	144	tp->sifreadb = tms_pci_sifreadb;
	145	tp->sifreadw = tms_pci_sifreadw;
	146	tp->sifwriteb = tms_pci_sifwriteb;
	147	tp->sifwritew = tms_pci_sifwritew;
	148
	149	memcpy(tp->ProductID, cardinfo->name, PROD_ID_SIZE + 1);
	150
	151	tp->tmspriv = cardinfo;
	152
f1608f85 SH	153	dev->netdev_ops = &tms380tr_netdev_ops;
f1608f85 SH	154
87786945 MR	155	ret = request_irq(pdev->irq, tms380tr_interrupt, IRQF_SHARED,
	156	dev->name, dev);
	157	if (ret)
	158	goto err_out_tmsdev;
	159
1da177e4 LT	160	pci_set_drvdata(pdev, dev);
	161	SET_NETDEV_DEV(dev, &pdev->dev);
	162
	163	ret = register_netdev(dev);
	164	if (ret)
87786945	165	goto err_out_irq;
1da177e4 LT	166
	167	return 0;
	168
87786945 MR	169	err_out_irq:
87786945 MR	170	free_irq(pdev->irq, dev);
1da177e4 LT	171	err_out_tmsdev:
	172	pci_set_drvdata(pdev, NULL);
	173	tmsdev_term(dev);
1da177e4 LT	174	err_out_region:
	175	release_region(pci_ioaddr, TMS_PCI_IO_EXTENT);
	176	err_out_trdev:
	177	free_netdev(dev);
	178	return ret;
	179	}
	180
	181	/*
	182	* Reads MAC address from adapter RAM, which should've read it from
	183	* the onboard ROM.
	184	*
	185	* Calling this on a board that does not support it can be a very
	186	* dangerous thing. The Madge board, for instance, will lock your
	187	* machine hard when this is called. Luckily, its supported in a
	188	* separate driver. --ASF
	189	*/
	190	static void tms_pci_read_eeprom(struct net_device *dev)
	191	{
	192	int i;
	193
	194	/* Address: 0000:0000 */
	195	tms_pci_sifwritew(dev, 0, SIFADX);
	196	tms_pci_sifwritew(dev, 0, SIFADR);
	197
	198	/* Read six byte MAC address data */
	199	dev->addr_len = 6;
	200	for(i = 0; i < 6; i++)
	201	dev->dev_addr[i] = tms_pci_sifreadw(dev, SIFINC) >> 8;
	202	}
	203
	204	static unsigned short tms_pci_setnselout_pins(struct net_device *dev)
	205	{
	206	unsigned short val = 0;
eda10531	207	struct net_local *tp = netdev_priv(dev);
1da177e4 LT	208	struct card_info *cardinfo = tp->tmspriv;
	209
	210	if(tp->DataRate == SPEED_4)
	211	val \|= cardinfo->nselout[0]; /* Set 4Mbps */
	212	else
	213	val \|= cardinfo->nselout[1]; /* Set 16Mbps */
	214	return val;
	215	}
	216
	217	static void __devexit tms_pci_detach (struct pci_dev *pdev)
	218	{
	219	struct net_device *dev = pci_get_drvdata(pdev);
	220
644c12d7	221	BUG_ON(!dev);
1da177e4 LT	222	unregister_netdev(dev);
	223	release_region(dev->base_addr, TMS_PCI_IO_EXTENT);
	224	free_irq(dev->irq, dev);
	225	tmsdev_term(dev);
	226	free_netdev(dev);
	227	pci_set_drvdata(pdev, NULL);
	228	}
	229
	230	static struct pci_driver tms_pci_driver = {
	231	.name = "tmspci",
	232	.id_table = tmspci_pci_tbl,
	233	.probe = tms_pci_attach,
	234	.remove = __devexit_p(tms_pci_detach),
	235	};
	236
	237	static int __init tms_pci_init (void)
	238	{
	239	return pci_register_driver(&tms_pci_driver);
	240	}
	241
	242	static void __exit tms_pci_rmmod (void)
	243	{
	244	pci_unregister_driver (&tms_pci_driver);
	245	}
	246
	247	module_init(tms_pci_init);
	248	module_exit(tms_pci_rmmod);
	249