tmspci.c
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上传日期:2013-02-24
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- /*
- * 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/sched.h>
- #include <linux/errno.h>
- #include <linux/pci.h>
- #include <linux/init.h>
- #include <asm/system.h>
- #include <asm/io.h>
- #include <asm/irq.h>
- #include <linux/netdevice.h>
- #include <linux/trdevice.h>
- #include "tms380tr.h"
- static char version[] __initdata =
- "tmspci.c: v1.02 23/11/2000 by Adam Fritzlern";
- #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[] __initdata = {
- { 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 __init 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 = init_trdev(NULL, 0);
- 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: %sn", dev->name, cardinfo->name);
- printk("%s: IO: %#4lx IRQ: %dn",
- 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;
- ret = register_trdev(dev);
- if (ret)
- goto err_out_tmsdev;
-
- pci_set_drvdata(pdev, dev);
- return 0;
- err_out_tmsdev:
- 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:
- unregister_netdev(dev);
- kfree(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
- * 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;
- }
- 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);
- kfree(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)
- {
- int rc = pci_register_driver (&tms_pci_driver);
- if (rc < 0)
- return rc;
- if (rc == 0) {
- pci_unregister_driver (&tms_pci_driver);
- return -ENODEV;
- }
- return 0;
- }
- 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:
- */