mirror of https://gitee.com/openkylin/linux.git
191 lines
5.3 KiB
C
191 lines
5.3 KiB
C
/*
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* Linux ARCnet driver - COM20020 PCI support
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* Contemporary Controls PCI20 and SOHARD SH-ARC PCI
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*
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* Written 1994-1999 by Avery Pennarun,
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* based on an ISA version by David Woodhouse.
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* Written 1999-2000 by Martin Mares <mj@ucw.cz>.
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* Derived from skeleton.c by Donald Becker.
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*
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* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
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* for sponsoring the further development of this driver.
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*
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* **********************
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*
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* The original copyright of skeleton.c was as follows:
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*
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* skeleton.c Written 1993 by Donald Becker.
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* Copyright 1993 United States Government as represented by the
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* Director, National Security Agency. This software may only be used
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* and distributed according to the terms of the GNU General Public License as
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* modified by SRC, incorporated herein by reference.
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*
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* **********************
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*
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* For more details, see drivers/net/arcnet.c
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*
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* **********************
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/ioport.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/netdevice.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/arcdevice.h>
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#include <linux/com20020.h>
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#include <asm/io.h>
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#define VERSION "arcnet: COM20020 PCI support\n"
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/* Module parameters */
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static int node;
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static char device[9]; /* use eg. device="arc1" to change name */
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static int timeout = 3;
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static int backplane;
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static int clockp;
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static int clockm;
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module_param(node, int, 0);
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module_param_string(device, device, sizeof(device), 0);
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module_param(timeout, int, 0);
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module_param(backplane, int, 0);
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module_param(clockp, int, 0);
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module_param(clockm, int, 0);
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MODULE_LICENSE("GPL");
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static int __devinit com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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{
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struct net_device *dev;
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struct arcnet_local *lp;
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int ioaddr, err;
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if (pci_enable_device(pdev))
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return -EIO;
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dev = alloc_arcdev(device);
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if (!dev)
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return -ENOMEM;
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lp = dev->priv;
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pci_set_drvdata(pdev, dev);
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// SOHARD needs PCI base addr 4
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if (pdev->vendor==0x10B5) {
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BUGMSG(D_NORMAL, "SOHARD\n");
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ioaddr = pci_resource_start(pdev, 4);
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}
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else {
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BUGMSG(D_NORMAL, "Contemporary Controls\n");
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ioaddr = pci_resource_start(pdev, 2);
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}
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if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) {
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BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
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ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
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err = -EBUSY;
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goto out_dev;
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}
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// Dummy access after Reset
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// ARCNET controller needs this access to detect bustype
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outb(0x00,ioaddr+1);
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inb(ioaddr+1);
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dev->base_addr = ioaddr;
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dev->irq = pdev->irq;
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dev->dev_addr[0] = node;
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lp->card_name = "PCI COM20020";
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lp->card_flags = id->driver_data;
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lp->backplane = backplane;
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lp->clockp = clockp & 7;
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lp->clockm = clockm & 3;
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lp->timeout = timeout;
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lp->hw.owner = THIS_MODULE;
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if (ASTATUS() == 0xFF) {
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BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
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"but seems empty!\n", ioaddr);
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err = -EIO;
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goto out_port;
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}
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if (com20020_check(dev)) {
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err = -EIO;
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goto out_port;
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}
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if ((err = com20020_found(dev, IRQF_SHARED)) != 0)
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goto out_port;
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return 0;
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out_port:
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release_region(ioaddr, ARCNET_TOTAL_SIZE);
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out_dev:
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free_netdev(dev);
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return err;
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}
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static void __devexit com20020pci_remove(struct pci_dev *pdev)
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{
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struct net_device *dev = pci_get_drvdata(pdev);
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unregister_netdev(dev);
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free_irq(dev->irq, dev);
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release_region(dev->base_addr, ARCNET_TOTAL_SIZE);
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free_netdev(dev);
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}
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static struct pci_device_id com20020pci_id_table[] = {
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{ 0x1571, 0xa001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0x1571, 0xa009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
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{ 0x1571, 0xa00a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
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{ 0x1571, 0xa00b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
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{ 0x1571, 0xa00c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
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{ 0x1571, 0xa00d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
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{ 0x1571, 0xa201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{ 0x1571, 0xa202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{ 0x1571, 0xa203, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{ 0x1571, 0xa204, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{ 0x1571, 0xa205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{ 0x1571, 0xa206, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{ 0x10B5, 0x9030, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{ 0x10B5, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
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{0,}
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};
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MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
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static struct pci_driver com20020pci_driver = {
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.name = "com20020",
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.id_table = com20020pci_id_table,
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.probe = com20020pci_probe,
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.remove = __devexit_p(com20020pci_remove),
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};
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static int __init com20020pci_init(void)
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{
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BUGLVL(D_NORMAL) printk(VERSION);
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return pci_register_driver(&com20020pci_driver);
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}
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static void __exit com20020pci_cleanup(void)
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{
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pci_unregister_driver(&com20020pci_driver);
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}
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module_init(com20020pci_init)
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module_exit(com20020pci_cleanup)
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