diff options
Diffstat (limited to 'drivers/net/tokenring/tmspci.c')
| -rw-r--r-- | drivers/net/tokenring/tmspci.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/drivers/net/tokenring/tmspci.c b/drivers/net/tokenring/tmspci.c new file mode 100644 index 000000000000..37ddb5c2bec3 --- /dev/null +++ b/drivers/net/tokenring/tmspci.c @@ -0,0 +1,267 @@ +/* + * 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 mid@auk.cx + * + * 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 i, 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; + SET_MODULE_OWNER(dev); + + if (!request_region(pci_ioaddr, TMS_PCI_IO_EXTENT, dev->name)) { + ret = -EBUSY; + goto err_out_trdev; + } + + ret = request_irq(pdev->irq, tms380tr_interrupt, SA_SHIRQ, + dev->name, dev); + if (ret) + goto err_out_region; + + 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: ", dev->name); + printk("%2.2x", dev->dev_addr[0]); + for (i = 1; i < 6; i++) + printk(":%2.2x", dev->dev_addr[i]); + printk("\n"); + + ret = tmsdev_init(dev, PCI_MAX_ADDRESS, pdev); + if (ret) { + printk("%s: unable to get memory for dev->priv.\n", dev->name); + goto err_out_irq; + } + + tp = dev->priv; + 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->open = tms380tr_open; + dev->stop = tms380tr_close; + pci_set_drvdata(pdev, dev); + SET_NETDEV_DEV(dev, &pdev->dev); + + ret = register_netdev(dev); + if (ret) + goto err_out_tmsdev; + + return 0; + +err_out_tmsdev: + pci_set_drvdata(pdev, NULL); + tmsdev_term(dev); +err_out_irq: + free_irq(pdev->irq, 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 = dev->priv; + 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); + + if (!dev) + BUG(); + 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); + + +/* + * Local variables: + * compile-command: "gcc -DMODVERSIONS -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c tmspci.c" + * alt-compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c tmspci.c" + * c-set-style "K&R" + * c-indent-level: 8 + * c-basic-offset: 8 + * tab-width: 8 + * End: + */ |