251 lines
6.2 KiB
C
251 lines
6.2 KiB
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 struct pci_device_id 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;
|
|
|
|
printk("%s: %s\n", dev->name, cardinfo->name);
|
|
printk("%s: IO: %#4lx IRQ: %d\n",
|
|
dev->name, dev->base_addr, dev->irq);
|
|
|
|
tms_pci_read_eeprom(dev);
|
|
|
|
printk("%s: Ring Station Address: %pM\n",
|
|
dev->name, dev->dev_addr);
|
|
|
|
ret = tmsdev_init(dev, &pdev->dev);
|
|
if (ret) {
|
|
printk("%s: unable to get memory for dev->priv.\n", dev->name);
|
|
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);
|
|
|