/*
* 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);