drivers/net/arcnet/com20020-pci.c

   1 /*
   2  * Linux ARCnet driver - COM20020 PCI support
   3  * Contemporary Controls PCI20 and SOHARD SH-ARC PCI
   4  *
   5  * Written 1994-1999 by Avery Pennarun,
   6  *    based on an ISA version by David Woodhouse.
   7  * Written 1999-2000 by Martin Mares <mj@ucw.cz>.
   8  * Derived from skeleton.c by Donald Becker.
   9  *
  10  * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
  11  *  for sponsoring the further development of this driver.
  12  *
  13  * **********************
  14  *
  15  * The original copyright of skeleton.c was as follows:
  16  *
  17  * skeleton.c Written 1993 by Donald Becker.
  18  * Copyright 1993 United States Government as represented by the
  19  * Director, National Security Agency.  This software may only be used
  20  * and distributed according to the terms of the GNU General Public License as
  21  * modified by SRC, incorporated herein by reference.
  22  *
  23  * **********************
  24  *
  25  * For more details, see drivers/net/arcnet.c
  26  *
  27  * **********************
  28  */
  29 #include <linux/module.h>
  30 #include <linux/moduleparam.h>
  31 #include <linux/kernel.h>
  32 #include <linux/types.h>
  33 #include <linux/ioport.h>
  34 #include <linux/errno.h>
  35 #include <linux/netdevice.h>
  36 #include <linux/init.h>
  37 #include <linux/interrupt.h>
  38 #include <linux/pci.h>
  39 #include <linux/arcdevice.h>
  40 #include <linux/com20020.h>
  41
  42 #include <asm/io.h>
  43
  44
  45 #define VERSION "arcnet: COM20020 PCI support\n"
  46
  47 /* Module parameters */
  48
  49 static int node;
  50 static char device[9];          /* use eg. device="arc1" to change name */
  51 static int timeout = 3;
  52 static int backplane;
  53 static int clockp;
  54 static int clockm;
  55
  56 module_param(node, int, 0);
  57 module_param_string(device, device, sizeof(device), 0);
  58 module_param(timeout, int, 0);
  59 module_param(backplane, int, 0);
  60 module_param(clockp, int, 0);
  61 module_param(clockm, int, 0);
  62 MODULE_LICENSE("GPL");
  63
  64 static int com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
  65 {
  66         struct net_device *dev;
  67         struct arcnet_local *lp;
  68         int ioaddr, err;
  69
  70         if (pci_enable_device(pdev))
  71                 return -EIO;
  72         dev = alloc_arcdev(device);
  73         if (!dev)
  74                 return -ENOMEM;
  75
  76         dev->netdev_ops = &com20020_netdev_ops;
  77
  78         lp = netdev_priv(dev);
  79
  80         pci_set_drvdata(pdev, dev);
  81
  82         // SOHARD needs PCI base addr 4
  83         if (pdev->vendor==0x10B5) {
  84                 BUGMSG(D_NORMAL, "SOHARD\n");
  85                 ioaddr = pci_resource_start(pdev, 4);
  86         }
  87         else {
  88                 BUGMSG(D_NORMAL, "Contemporary Controls\n");
  89                 ioaddr = pci_resource_start(pdev, 2);
  90         }
  91
  92         if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) {
  93                 BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
  94                        ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
  95                 err = -EBUSY;
  96                 goto out_dev;
  97         }
  98
  99         // Dummy access after Reset
 100         // ARCNET controller needs this access to detect bustype
 101         outb(0x00,ioaddr+1);
 102         inb(ioaddr+1);
 103
 104         dev->base_addr = ioaddr;
 105         dev->irq = pdev->irq;
 106         dev->dev_addr[0] = node;
 107         lp->card_name = "PCI COM20020";
 108         lp->card_flags = id->driver_data;
 109         lp->backplane = backplane;
 110         lp->clockp = clockp & 7;
 111         lp->clockm = clockm & 3;
 112         lp->timeout = timeout;
 113         lp->hw.owner = THIS_MODULE;
 114
 115         if (ASTATUS() == 0xFF) {
 116                 BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
 117                        "but seems empty!\n", ioaddr);
 118                 err = -EIO;
 119                 goto out_port;
 120         }
 121         if (com20020_check(dev)) {
 122                 err = -EIO;
 123                 goto out_port;
 124         }
 125
 126         if ((err = com20020_found(dev, IRQF_SHARED)) != 0)
 127                 goto out_port;
 128
 129         return 0;
 130
 131 out_port:
 132         release_region(ioaddr, ARCNET_TOTAL_SIZE);
 133 out_dev:
 134         free_netdev(dev);
 135         return err;
 136 }
 137
 138 static void com20020pci_remove(struct pci_dev *pdev)
 139 {
 140         struct net_device *dev = pci_get_drvdata(pdev);
 141         unregister_netdev(dev);
 142         free_irq(dev->irq, dev);
 143         release_region(dev->base_addr, ARCNET_TOTAL_SIZE);
 144         free_netdev(dev);
 145 }
 146
 147 static DEFINE_PCI_DEVICE_TABLE(com20020pci_id_table) = {
 148         { 0x1571, 0xa001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 149         { 0x1571, 0xa002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 150         { 0x1571, 0xa003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 151         { 0x1571, 0xa004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 152         { 0x1571, 0xa005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 153         { 0x1571, 0xa006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 154         { 0x1571, 0xa007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 155         { 0x1571, 0xa008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 156         { 0x1571, 0xa009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 157         { 0x1571, 0xa00a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 158         { 0x1571, 0xa00b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 159         { 0x1571, 0xa00c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 160         { 0x1571, 0xa00d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 161         { 0x1571, 0xa00e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 162         { 0x1571, 0xa201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 163         { 0x1571, 0xa202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 164         { 0x1571, 0xa203, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 165         { 0x1571, 0xa204, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 166         { 0x1571, 0xa205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 167         { 0x1571, 0xa206, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 168         { 0x10B5, 0x9030, 0x10B5,     0x2978,     0, 0, ARC_CAN_10MBIT },
 169         { 0x10B5, 0x9050, 0x10B5,     0x2273,     0, 0, ARC_CAN_10MBIT },
 170         { 0x14BA, 0x6000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 171         { 0x10B5, 0x2200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 172         {0,}
 173 };
 174
 175 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
 176
 177 static struct pci_driver com20020pci_driver = {
 178         .name           = "com20020",
 179         .id_table       = com20020pci_id_table,
 180         .probe          = com20020pci_probe,
 181         .remove         = com20020pci_remove,
 182 };
 183
 184 static int __init com20020pci_init(void)
 185 {
 186         BUGLVL(D_NORMAL) printk(VERSION);
 187         return pci_register_driver(&com20020pci_driver);
 188 }
 189
 190 static void __exit com20020pci_cleanup(void)
 191 {
 192         pci_unregister_driver(&com20020pci_driver);
 193 }
 194
 195 module_init(com20020pci_init)
 196 module_exit(com20020pci_cleanup)