/* * 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 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 * * TODO: * 1. See if we can use MMIO instead of port accesses * */ static const char *version = "tmspci.c: v1.01 22/01/2000 by Adam Fritzler\n"; #include #include #include #include #include #include #include #include #include #include #include #include "tms380tr.h" #define TMS_PCI_IO_EXTENT 32 struct cardinfo_table { int vendor_id; /* PCI info */ int device_id; int registeroffset; /* SIF offset from dev->base_addr */ unsigned char nselout[2]; /* NSELOUT vals for 4mb([0]) and 16mb([1]) */ char *name; }; struct cardinfo_table probelist[] = { { 0, 0, 0x0000, {0x00, 0x00}, "Unknown TMS380 Token Ring Adapter"}, { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TOKENRING, 0x0000, {0x03, 0x01}, "Compaq 4/16 TR PCI"}, { PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_TR, 0x0000, {0x03, 0x01}, "SK NET TR 4/16 PCI"}, { PCI_VENDOR_ID_TCONRAD, PCI_DEVICE_ID_TCONRAD_TOKENRING, 0x0000, {0x03, 0x01}, "Thomas-Conrad TC4048 PCI 4/16"}, { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C339, 0x0000, {0x03, 0x01}, "3Com Token Link Velocity"}, { 0, 0, 0, {0x00, 0x00}, NULL} }; int tms_pci_probe(void); static int tms_pci_open(struct net_device *dev); static int tms_pci_close(struct net_device *dev); 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); } struct tms_pci_card { struct net_device *dev; struct pci_dev *pci_dev; struct cardinfo_table *cardinfo; struct tms_pci_card *next; }; static struct tms_pci_card *tms_pci_card_list = NULL; struct cardinfo_table * __init tms_pci_getcardinfo(unsigned short vendor, unsigned short device) { int cur; for (cur = 1; probelist[cur].name != NULL; cur++) { if ((probelist[cur].vendor_id == vendor) && (probelist[cur].device_id == device)) return &probelist[cur]; } return NULL; } int __init tms_pci_probe(void) { static int versionprinted = 0; struct pci_dev *pdev = NULL ; struct net_device *dev; struct net_local *tp; int i; if (!pci_present()) return (-1); /* No PCI present. */ while ( (pdev=pci_find_class(PCI_CLASS_NETWORK_TOKEN_RING<<8, pdev))) { unsigned int pci_irq_line; unsigned long pci_ioaddr; struct tms_pci_card *card; struct cardinfo_table *cardinfo; if ((cardinfo = tms_pci_getcardinfo(pdev->vendor, pdev->device)) == NULL) continue; if (versionprinted++ == 0) printk("%s", version); pci_enable_device(pdev); /* Remove I/O space marker in bit 0. */ pci_irq_line = pdev->irq; pci_ioaddr = pdev->resource[0].start ; if(check_region(pci_ioaddr, TMS_PCI_IO_EXTENT)) continue; /* At this point we have found a valid card. */ dev = init_trdev(NULL, 0); request_region(pci_ioaddr, TMS_PCI_IO_EXTENT, cardinfo->name); if(request_irq(pdev->irq, tms380tr_interrupt, SA_SHIRQ, cardinfo->name, dev)) { release_region(pci_ioaddr, TMS_PCI_IO_EXTENT); continue; /*return (-ENODEV);*/ /* continue; ?? */ } /* if (load_tms380_module("tmspci.c")) { return 0; } */ pci_ioaddr &= ~3 ; 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); /* * Some cards have their TMS SIF registers offset from * their given base address. Account for that here. */ dev->base_addr += cardinfo->registeroffset; 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"); if (tmsdev_init(dev)) { printk("%s: unable to get memory for dev->priv.\n", dev->name); return 0; } tp = (struct net_local *)dev->priv; tp->dmalimit = 0; /* XXX: should be the max PCI32 DMA max */ 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 = tms_pci_open; dev->stop = tms_pci_close; if (register_trdev(dev) == 0) { /* Enlist in the card list */ card = kmalloc(sizeof(struct tms_pci_card), GFP_KERNEL); card->next = tms_pci_card_list; tms_pci_card_list = card; card->dev = dev; card->pci_dev = pdev; card->cardinfo = cardinfo; } else { printk("%s: register_trdev() returned non-zero.\n", dev->name); kfree(dev->priv); kfree(dev); return -1; } } if (tms_pci_card_list) return 0; return (-1); } /* * 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 * seperate 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; } unsigned short tms_pci_setnselout_pins(struct net_device *dev) { unsigned short val = 0; struct net_local *tp = (struct net_local *)dev->priv; struct cardinfo_table *cardinfo = (struct cardinfo_table *)tp->tmspriv; if(tp->DataRate == SPEED_4) val |= cardinfo->nselout[0]; /* Set 4Mbps */ else val |= cardinfo->nselout[1]; /* Set 16Mbps */ return val; } static int tms_pci_open(struct net_device *dev) { tms380tr_open(dev); MOD_INC_USE_COUNT; return 0; } static int tms_pci_close(struct net_device *dev) { tms380tr_close(dev); MOD_DEC_USE_COUNT; return 0; } #ifdef MODULE int init_module(void) { /* Probe for cards. */ if (tms_pci_probe()) { printk(KERN_NOTICE "tmspci.c: No cards found.\n"); } /* lock_tms380_module(); */ return (0); } void cleanup_module(void) { struct net_device *dev; struct tms_pci_card *this_card; while (tms_pci_card_list) { dev = tms_pci_card_list->dev; /* * If we used a register offset, revert here. */ if (dev->priv) { struct net_local *tp; struct cardinfo_table *cardinfo; tp = (struct net_local *)dev->priv; cardinfo = (struct cardinfo_table *)tp->tmspriv; dev->base_addr -= cardinfo->registeroffset; } unregister_netdev(dev); release_region(dev->base_addr, TMS_PCI_IO_EXTENT); free_irq(dev->irq, dev); kfree(dev->priv); kfree(dev); this_card = tms_pci_card_list; tms_pci_card_list = this_card->next; kfree(this_card); } /* unlock_tms380_module(); */ } #endif /* MODULE */ /* * 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: */