diff options
Diffstat (limited to 'drivers/net/arcnet/com20020-pci.c')
| -rw-r--r-- | drivers/net/arcnet/com20020-pci.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c new file mode 100644 index 00000000000..96636ca8754 --- /dev/null +++ b/drivers/net/arcnet/com20020-pci.c @@ -0,0 +1,189 @@ +/* + * Linux ARCnet driver - COM20020 PCI support + * Contemporary Controls PCI20 and SOHARD SH-ARC PCI + * + * Written 1994-1999 by Avery Pennarun, + * based on an ISA version by David Woodhouse. + * Written 1999-2000 by Martin Mares <mj@ucw.cz>. + * Derived from skeleton.c by Donald Becker. + * + * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) + * for sponsoring the further development of this driver. + * + * ********************** + * + * The original copyright of skeleton.c was as follows: + * + * skeleton.c Written 1993 by Donald Becker. + * Copyright 1993 United States Government as represented by the + * Director, National Security Agency. This software may only be used + * and distributed according to the terms of the GNU General Public License as + * modified by SRC, incorporated herein by reference. + * + * ********************** + * + * For more details, see drivers/net/arcnet.c + * + * ********************** + */ +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/ioport.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/netdevice.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/arcdevice.h> +#include <linux/com20020.h> + +#include <asm/io.h> + + +#define VERSION "arcnet: COM20020 PCI support\n" + +/* Module parameters */ + +static int node; +static char device[9]; /* use eg. device="arc1" to change name */ +static int timeout = 3; +static int backplane; +static int clockp; +static int clockm; + +module_param(node, int, 0); +module_param_string(device, device, sizeof(device), 0); +module_param(timeout, int, 0); +module_param(backplane, int, 0); +module_param(clockp, int, 0); +module_param(clockm, int, 0); +MODULE_LICENSE("GPL"); + +static int __devinit com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct net_device *dev; + struct arcnet_local *lp; + int ioaddr, err; + + if (pci_enable_device(pdev)) + return -EIO; + dev = alloc_arcdev(device); + if (!dev) + return -ENOMEM; + lp = dev->priv; + + pci_set_drvdata(pdev, dev); + + // SOHARD needs PCI base addr 4 + if (pdev->vendor==0x10B5) { + BUGMSG(D_NORMAL, "SOHARD\n"); + ioaddr = pci_resource_start(pdev, 4); + } + else { + BUGMSG(D_NORMAL, "Contemporary Controls\n"); + ioaddr = pci_resource_start(pdev, 2); + } + + if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) { + BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n", + ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1); + err = -EBUSY; + goto out_dev; + } + + // Dummy access after Reset + // ARCNET controller needs this access to detect bustype + outb(0x00,ioaddr+1); + inb(ioaddr+1); + + dev->base_addr = ioaddr; + dev->irq = pdev->irq; + dev->dev_addr[0] = node; + lp->card_name = "PCI COM20020"; + lp->card_flags = id->driver_data; + lp->backplane = backplane; + lp->clockp = clockp & 7; + lp->clockm = clockm & 3; + lp->timeout = timeout; + lp->hw.owner = THIS_MODULE; + + if (ASTATUS() == 0xFF) { + BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, " + "but seems empty!\n", ioaddr); + err = -EIO; + goto out_port; + } + if (com20020_check(dev)) { + err = -EIO; + goto out_port; + } + + if ((err = com20020_found(dev, SA_SHIRQ)) != 0) + goto out_port; + + return 0; + +out_port: + release_region(ioaddr, ARCNET_TOTAL_SIZE); +out_dev: + free_netdev(dev); + return err; +} + +static void __devexit com20020pci_remove(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + unregister_netdev(dev); + free_irq(dev->irq, dev); + release_region(dev->base_addr, ARCNET_TOTAL_SIZE); + free_netdev(dev); +} + +static struct pci_device_id com20020pci_id_table[] = { + { 0x1571, 0xa001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { 0x1571, 0xa009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, + { 0x1571, 0xa00a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, + { 0x1571, 0xa00b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, + { 0x1571, 0xa00c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, + { 0x1571, 0xa00d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT }, + { 0x1571, 0xa201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x1571, 0xa202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x1571, 0xa203, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x1571, 0xa204, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x1571, 0xa205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x1571, 0xa206, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + { 0x10B5, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT }, + {0,} +}; + +MODULE_DEVICE_TABLE(pci, com20020pci_id_table); + +static struct pci_driver com20020pci_driver = { + .name = "com20020", + .id_table = com20020pci_id_table, + .probe = com20020pci_probe, + .remove = __devexit_p(com20020pci_remove), +}; + +static int __init com20020pci_init(void) +{ + BUGLVL(D_NORMAL) printk(VERSION); + return pci_module_init(&com20020pci_driver); +} + +static void __exit com20020pci_cleanup(void) +{ + pci_unregister_driver(&com20020pci_driver); +} + +module_init(com20020pci_init) +module_exit(com20020pci_cleanup) |